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The post Jabra transforms headsets into headphones with new Evolve3 75 & 85 appeared first on Popular Science.
-]]>https://www.popsci.com/gear/jabra-evolve3-75-85-bluetooth-headset-headphones-product-announcement/The post REI is blowing out sneakers, hiking boots, and casual shoes during its winter clearance sale appeared first on Popular Science.
+]]>So, the Evolve3 85 (over-the-ear, above) and Evolve3 75 (on-the-ear, bottom of the page) headphones pack easily. What’s equally impressive is what Jabra has packed inside them. They ditch the usual boom arm for Jabra ClearVoice—a deep neural network model paired with multi-mic algorithms that claims to learn what “you” sounds like in a crowded room, so there’s no more shouting in a corner. (Trained on 60+ million sentences by parent company GN’s hearing division, it promises 96% word capture; 99% in an open office.) Adaptive ANC responds in real time to both your environment and how the headset seals, and it keeps working during calls, not only in the quiet moments between them. Spatial Sound places voices with a little more front-to-back realism, so long meetings feel less like they’re happening inside your head until you throw it back in frustration.
- - - - - - + + See It -Despite the understated profile, these headphones pack stamina: up to 25 hours of calls and 120 hours of music on Evolve3 85 with ANC/busylight off (22/110 on Evolve3 75), plus a 10-minute fast charge for up to 10 more hours, and wireless charging for desk-drop life. One-touch voice access is integrated for GenAI prompts and high-accuracy transcription. Bluetooth 5.4 with LC3 codec is made for the playlists that fuel productivity. For IT teams, there’s secure Bluetooth Low Energy with a pre-paired adapter included, UC-certified virtual meeting platform variants, Bluetooth Native for direct device connections, and centralized fleet control through Jabra Plus Management; users get personal tweaks through the Jabra Plus app (with a desktop version planned for later in 2026). Replaceable batteries and parts, recycled/bio-circular materials, and TCO generation 10 certification round out the “one device you only buy once” mindset.
+ + -Who says hybrid work has to be messy? Evolve3 85 and 75 in Black arrive March 1, 2026, for $649 and $463 (list price at launch), with Warm Gray landing in April.
+Forget about laces. The BOA system allows you to make micro adjustments to the fit with a simple turn of a dial. It’s a great option if you’re going over tough terrain or you’ll be wearing gloves and don’t want to take them off to tie laces.
The post Jabra transforms headsets into headphones with new Evolve3 75 & 85 appeared first on Popular Science.
-]]>The post The swinging sex lives of Alaska’s beluga whales appeared first on Popular Science.
-]]>One small population of beluga whales living in southwest Alaska’s Bristol Bay appears to have a surprising strategy. Over several years, both male and female belugas mate with multiple partners. This method may reduce the risk of inbreeding in the group of just 2,000 whales and help maintain genetic diversity. The findings are detailed in a study published today in the journal Frontiers in Marine Science.
+Running shoes need replacing more often than our wallets would like. These bright runners offer ample cushioning and a comfortable fit for any kind of training from the road to the treadmill.
-Over 13 years, scientists collected genetic samples from 623 beluga whales in Bristol Bay, while simultaneously observing their ages and social groupings. The largely isolated population has little or no mixing with other populations elsewhere in the Arctic and subarctic. This degree of isolation gives biologists a unique opportunity to study them as a distinct population.
+The team wanted to determine which mating style this population of beluga engaged in—polygynous, polyandrous, or polygynandrous. In polygynous mating, one male mates with multiple females, as seen in many bird species. In polyandrous animals, one female mates with multiple males, similar to what female mice do. Polygynandrous mating is when both males and females have multiple mates.
+Since belugas live 30 to 50 years on average—with some living as long as 80 years—the team focused on what happens during one mating season instead of over a whole lifetime.
+The team found that this beluga whale population engages in a polygynandrous system, where both males and females mate with multiple partners over several years. Instead of reproductive success being dominated by a few individuals, it is more spread out. This mate switching also results in many half-sibling offspring and few full-sibling offspring and could reduce the risk of inbreeding and help maintain genetic diversity in the small population.
+
According to the team, these findings upend scientists’ earlier notions about beluga mating. Since males are much larger than females and are not frequently seen with mothers and calves, researchers thought that the whales were highly polygynous. In these settings, males spend significantly more time competing for mates and only a few dominant males end up fathering most of the calves.
+“Our findings tell a very different story,” Greg O’Corry-Crowe, a study co-author and biologist at Florida Atlantic University, said in a statement. “In the short term, males are only moderately polygynous. One explanation we think lies in their incredible longevity—belugas can live perhaps 100 years or more. Rather than competing intensely in a single season, males appear to play the long game, spreading their reproductive efforts over many years. It appears to be a ‘take your time, there’s plenty of fish in the sea’ strategy.”
+The findings also indicate that female belugas have their own equally fascinating reproductive strategy. Instead of sticking with one partner, they frequently switch mates from one breeding season to the next. This could be a form of risk management, allowing the females to avoid pairing with low-quality males and increasing the likelihood of creating healthy and genetically diverse offspring.
+“It’s a striking reminder that female choice can be just as influential in shaping reproductive success as the often-highlighted battles of male-male competition,” O’Corry-Crowe added. “Such strategies highlight the subtle, yet powerful ways in which females exert control over the next generation, shaping the evolutionary trajectory of the species.”
+
According to the team, these findings underscore how important understanding mating systems is for conservation methods, particularly in small or isolated populations like the Bristol Bay Belugas. In polygynandrous systems like these, mate choice, partner switching, and shared reproductive opportunities is what spreads genes more evenly. This maintains genetic diversity, limits inbreeding, and offsets the devastating impacts a small population size can have.
+“Understanding these dynamics matters for conservation. If only a few males father most calves, the effective population size becomes much smaller than the number of whales actually present,” said O’Corry-Crowe.
+The Indigenous communities of Bristol Bay were key in getting this study together. They helped study these elusive whales, melding scientific research with Indigenous knowledge to protect the belugas in a changing Arctic and subarctic.
+“We cannot afford to be complacent. Small populations still face the dangers of genetic erosion,” concluded O’Corry-Crowe. “But we can be optimistic that beluga whale mating strategies provide evidence of nature’s resilience and offers hope for those working to save and recover small populations of any species.”
-The post The swinging sex lives of Alaska’s beluga whales appeared first on Popular Science.
-]]>The post 13 gorgeous black-and-white images of the animal kingdom appeared first on Popular Science.
-]]>The 2025 Nature Photography Contest celebrates the “enduring power of black and white photography” and its ability “to deepen our connection with the natural world,” according to a press release. This year’s contest welcomed submissions from 82 countries and the winners include stunning and intimate photographs of wildlife, all in black and white.
+
Photographer Lidija Novković earned top honors in the Professional category for a powerful image of a horse (seen below). Janet Gustin won the Non-Professional category for a playful photo of a fox kit nipping at its mother. Visit Exposure One for a full gallery of the honorees. (Click to expand images to full screen.)
+










The post 13 gorgeous black-and-white images of the animal kingdom appeared first on Popular Science.
-]]>However, that doesn’t mean it’s impossible to spot AI pictures: There are still signs to watch out for, checks you can make, and tools you can use to distinguish the genuine from the synthetic. As is the case with AI-generated video, you don’t have to give up just yet.
+You may not be able to definitively determine this one way or the other each and every time, but in a lot of cases you can make a pretty educated guess. And in an age of disinformation and AI slop, being able to make the distinction is a skill that’s worth honing.
+Some chatbots are now putting hidden watermarks into their image outputs, identifying them as AI-generated. While these watermarks aren’t difficult to remove—a simple screenshot of the image will do it—they’re a good place to start when it comes to trying to tell if an image has been made by AI.
+Anything produced by Google Gemini, for example, will have what’s called a SynthID watermark embedded somewhere in it. To test the authenticity of an image, you can upload a picture to Gemini on the web, and simply ask “was this image made by AI?”. Gemini will be able to find the SynthID watermark, if it’s there.
+
There’s another standard way of labeling AI images, which is developed by the Coalition for Content Provenance and Authenticity (C2PA): the labeling itself is called C2PA, and it’s supported by companies including OpenAI, Adobe, and Google. If you head to a C2PA checking website such as Content Credentials, you can upload an image and get it analyzed for evidence of AI creation.
+If an image passes these checks, it’s not a guarantee that it’s genuine—but it’s worth running through them anyway, because they will catch some AI generations, and even tell you which model was used to make the picture in many cases. If you’re still not sure, you can move on to looking at the context around an image.
+No image is an island: It will have come from somewhere, and been shared by someone. You can rely on respected publications (such as the one you’re reading) to honestly label images that have been generated by AI, and properly attribute other images that haven’t. You’ll know exactly what you’re looking at.
+On the wilds of social media of course, the lines are much more blurred. Here, content is posted and reposted without context or attribution, and it’s much more likely that something on Facebook or X has been faked. That’s especially true if the picture is designed to attract engagement, through controversy or cuteness or any of the other emotional levers that get pulled.
+
Another trick you can try, especially when it comes to images associated with news stories, is to look for complementary pictures taken from different angles. Are the pictures consistent? Do the details match up from different viewpoints and across different time periods? For illustrations and graphic art, you can again check to see if any credits have been applied: See if what you’re looking at has a link back to the artist and their portfolio.
+A reverse image search can sometimes reveal where an image has come from, and help you find other copies on the web: TinEye is perhaps the best resource for this. If there are no other matches, that points towards AI—especially if it’s been posted without context on social media, and especially via an account trying to monetize or sell something.
+We know AI bots aren’t actually taking any photographs or sketching any pictures: They’re producing approximations of images based on prompts and their training data (which is vast amounts of creative work done by people). That approach can lead to a certain generic sheen that gives away a lot of AI-generated content.
+Anime characters look like generic anime characters, trees look like generic trees, and city streets look like generic city streets. There’s even a recognizable ChatGPT font that the AI bot reverts to whenever you ask for some text without any specific style—like an average of all the fonts ever created—and you’ll recognize it if you try and generate a few pictures with text in ChatGPT.
+
Physics is still a problem, though the errors aren’t as egregious as they used to be. Try rendering a view of a castle or a vast office block interior in an AI bot and you’ll notice turrets appear in pointless places, staircases lead to nowhere, and elevator doors don’t actually lead to elevators. There are often logical inconsistencies, because AI doesn’t really understand buildings or interior space, just how to create a decent simulation of them in visual form.
+We may be past the point of six fingers on hands, but faces and limbs regularly look squished and unnatural, and details are often fuzzy and blurred. Sometimes these problems will be easier to spot than others, but with a little practice and a few test renders of your own, you should get better at being able to identify them.
-The post How to really spot AI-generated images, with Google’s help appeared first on Popular Science.
-]]>The fleece lining helps hold warmth against your core and legs, which is exactly what you want when the wind is doing its best to blast every bit of warmth away from your body.
+You can wear this under pretty much any outfit. The fleece lining adds noticeable warmth without forcing you into bulky outerwear, which matters if you still need to move around (walking, commuting, or doing anything that requires bending your knees).
+If you’re shopping by price first, this is another solid pick from the batch, and it’s the easiest way to make standing outside less miserable.
+The post Amazon is blowing out Cuddl Duds base layers and and thermal underwear just in time for frigid temperatures appeared first on Popular Science.
-]]>The post Scottish distillery wants to bottle whisky in aluminum, not glass appeared first on Popular Science.
-]]>Any serious distillery uses glass bottles for the good stuff. The reason is as much about aesthetics as it is about chemistry. From a psychological standpoint, the hefty, translucent glass implies the painstaking artisanal craft required to produce an elevated batch of whisky (the “whiskey” spelling is generally only used by Irish and American distillers). The material also is guaranteed to not interact with a whisky’s delicate flavor profile, that can only be achieved after years or even decades of aging.
+There are serious sustainability problems with the industry’s reliance on glass. Most glass manufacturing still requires vast amounts of energy at a major environmental cost. What’s more, all those heavy whisky bottles then ramp up pollution and other problems as they’re transported around the world. Once a bottle is finally empty, recycling is harder than you might think. Manufacturers have long offered popular drinks—both with and without alcohol—in much more sustainable aluminum containers. So why haven’t distilleries made the leap?
+Sterling Distillery recently approached chemical scientists at Scotland’s Heriot-Watt University to provide some answers. Researchers spent months analyzing how aluminum can affect the liquor’s chemical composition and flavor profile. Using nuclear magnetic resonance spectroscopy, the team first measured how alcohol and metal atoms interacted when whisky is stored in aluminum. While they found that contact with the metal often reduced or eliminated important compounds like gallic acid, volunteer taste testers didn’t differentiate between whisky housed in glass and aluminum bottles.
+From there, the team used plasma mass spectrometry to measure the actual metal levels in the whisky. The small samples used for the taste test were comparatively safe, but they soon determined a potentially major branding issue: no one wants metal poisoning from their whisky dram.
+“We know that certain organic acids naturally present in matured whisky can react with aluminum, which can lead to aluminum entering the liquid,” Dave Ellis, a chemist at Heriot-Watt University, said in a statement. “If we stir samples with aluminum metal, the levels were well above what would be considered acceptable for drinking water.”
+The reason this isn’t an issue in other aluminum containers like soup cans is due to their linings. For decades, soup cans and other products featured a transparent coating as much as 10 micrometers thick made from various epoxy resins and Bisphenol A (BPA) plastics. Because BPA plastic has plenty of its own health and environmental issues, industries have slowly switched to alternative liners—but it remains to be seen if any of them can hold up to a potent whisky.
+“Any innovation has to respect the craft of whisky making while meeting the highest standards of safety,” added Annie Hill, a researcher at Heriot-Watt’s International Center for Brewing and Distilling. “In this case, the liner within the can wasn’t sufficient to prevent aluminum from passing into the spirit.
+The team added that aluminum whisky bottles aren’t impossible in the future. However, distillers and scientists still need to find a lining that could withstand years—and sometimes decades—on a whisky aficionado’s shelf. Sterling Distillery wants to have aluminum bottling ready for the debut of its first matured whisky in 2027, so it still has some time to locate a liner. But if there’s one thing whisky teaches you, it’s that you can’t rush a good thing.
-The post Scottish distillery wants to bottle whisky in aluminum, not glass appeared first on Popular Science.
-]]>The post Dinosaur bones found underneath parking lot in Dinosaur, Colorado appeared first on Popular Science.
-]]>Located on the Colorado-Utah border at the meeting of the Green and Yampa rivers, Dinosaur National Monument was established as a federally protected site in 1915. Its nearly 330 square miles of land encompasses over 800 separate paleontological sites dating back 150 million years to the Jurassic era. The Carnegie Museum oversaw the very first excavations from 1909 to 1922, followed by projects from the Smithsonian Museum and the University of Utah in 1923 and 1924.
+The region is largely arid desert landscape today. However, over 150 million years ago, a vast river bed regularly received the remains of dinosaurs as they floated downstream. These bones slowly fossilized in the sandstone and conglomerate rock, resulting in one of the continent’s best preserved and diverse collections of ancient megafauna. Today, the nearby national monument offers visitors a glimpse at the range of species that once roamed North America such as Allosaurus, Deinonychus, and Stegosaurus.
+After identifying the new Diplodocus bones in a parking lot, paleontologists worked with park staff, the Utah Conservation Corps, and local volunteers between September and October 2025 to remove around 3,000 pounds of rocks and fossils. The finds were then moved to the Natural History State Park Museum in Vernal, Utah, where they can be viewed in the institution’s public fossil preparation lab. Additional examples are already on display at the Dinosaur National Monument’s Quarry Exhibit Hall. Also known as the Wall of Bones, the exhibit hall is situated over an intact section of the original Carnegie quarry dig showcasing an estimated 1,500 dinosaur fossils still embedded in rock.
+Researchers are now continuing to clean and examine the parking lot discoveries that broke the century-long dry spell for Dinosaur, Colorado. That said, the town wasn’t always so aptly named. Originally known as Baxter Springs, the location was eventually retitled Artesia during an oil rush in the 1940s oil boom. In 1966, the small hub finally received its current Dinosaur designation.
-The post Dinosaur bones found underneath parking lot in Dinosaur, Colorado appeared first on Popular Science.
-]]>The post This deadly dog ‘spaghetti’ has ancient origins appeared first on Popular Science.
-]]>The post REI is blowing out sneakers, hiking boots, and casual shoes during its winter clearance sale appeared first on Popular Science.
+]]>The post 550-pound Ice Age kangaroos could still hop appeared first on Popular Science.
+]]>New research into the widespread canine parasite suggests that heartworm has a deeper and more complex history than scientists previously believed and some may have originated in Australian dingoes. The findings are detailed in a study published today in the journal Communications Biology.
+For thousands of years, the planet’s largest hopping animal has remained Australia’s red kangaroo (Osphranter rufus). A male “Big Red” easily reaches over five feet tall, weighs 200 pounds, and travels around 37 mph at a pace of up to six feet per leap. But as big as they are today, their evolutionary relatives were even heftier. During the Ice Age around 45,000 years ago, giant kangaroos in the Sthenurinae subfamily often grew over double the size of present-day marsupials. Paleontologists estimate the largest, Procoptodon goliah, stood 6.5 feet tall and weighed upwards of 550 pounds.
-Heartworm disease is caused by the parasite Dirofilaria immitis. It is spread to dogs by mosquitoes and can be fatal. Adult worms live in the blood vessels of the heart and lungs and can grow up to 11.8 inches long (30 centimeters). Dog owners and veterinarians often report that worms can look like a strand of spaghetti in the heart.
+It’s easy to assume P. goliah and other giant kangaroos lost their ability to hop as a result of all that bulk. After all, scaling up the anatomy of a Big Red suggests the physical act becomes mechanically impossible above 330 pounds. But according to University of Manchester evolutionary scientist Megan Jones, that has been the problem.
-

In the new study, an international team of researchers looked at over 100 heartworm genomes collected from pet dogs and wild canids from around the world. They used whole-genome sequencing to compare heartworms found in different regions, which helped them reconstruct population histories and track how the parasites diverged over time. They then pinpointed distinct regional heartworm populations that were shaped by the how and when ancient canids moved across the earth during ice ages.
+“Previous estimates were based on simply scaling up modern kangaroos, which may mean we miss crucial anatomical differences,” Jones said in a statement. “Our findings show that these animals weren’t just larger versions of today’s kangaroos, they were built differently, in ways that helped them manage their enormous size.”
-They found that ancient canid hosts such as wolves and dingoes played a pivotal role in shaping how heartworms have been distributed across the globe for thousands of years.
+In a study published today in the journal Scientific Reports, Jones and colleagues lay out the case for a new look at the giant ‘roos of the Ice Age. Their conclusions come from comparing present-day kangaroo skeletal anatomy with the fossils of their marsupial cousins. The team specifically focused on two primary limitations for hopping: foot bone strength and how an ankle could support strong enough tendons to facilitate locomotion.
+“For decades, we assumed heartworms were spread mainly through recent human activity,” Dr. Rosemonde Power, a study co-author and University of Stockholm paleogeneticist, said in a statement. “What we’re seeing instead is evidence of deep co-evolution between heartworms and their canine hosts, even before humans were part of the picture.”
+Unlike today’s kangaroos, the Sthenurinae megafauna possessed thicker, shorter foot bones and broader heels. This combination likely allowed them to handle the intense downward force of hopping with the help of powerful tendons. At the same time, giant kangaroos almost certainly weren’t constantly hopping across ancient Australian landscapes.
-One of the study’s most interesting findings relates to Australia. Genetic signatures in Australian heartworms suggest that they might share ancestry with parasites found in Asia. According to the team, this raises the possibility that heartworm may have arrived in Australia with the continent’s first dingoes. The wild canids are believed to have migrated from Asia thousands of years ago.
+“Thicker tendons are safer, but they store less elastic energy,” said University of Bristol biologist and study co-author Katrina Jones. “This likely made giant kangaroos slower and less efficient hoppers, better suited to short bursts of movement rather than long-distance travel.”
-However, the team cautions that the evidence is not conclusive. Heartown also may have been introduced to Australia more recently, following European colonization.
+Jones added that their intermittent hops weren’t simply impressive displays of talent. The giant kangaroos could use them to traverse difficult terrain more easily, or escape imminent danger from predators.
-“While our data suggest an ancient link between Australian and Asian heartworms, the sample size means we need to be careful about drawing firm conclusions,” said study co-author and University of Sydney veterinarian Jan Slapeta. “What we can say with confidence is that heartworm evolution is far older and more complex than a simple story of parasites hitchhiking with modern dogs.”
+It wasn’t all hopping or walking, either. Analysis of other Sthenurinae fossils suggest a variety of movement options for different giant kangaroo species. The study’s authors theorize some may have hopped for short distances, then walked on either two or all rfour legs as part of a wider “movement repertoire.”
+The post 550-pound Ice Age kangaroos could still hop appeared first on Popular Science.
+]]>The post Adorable ferret-sized martens are rebounding in California appeared first on Popular Science.
+]]>
Coastal martens (Martes caurina humboldtensis or the Humboldt marten) are related to weasels, otters, mink, wolverines, and fetters. These rare mammals are smaller than the average house cat with adult males averaging about 20 to 24 inches long and weighing about 1.5 to three pounds. Martens are carnivores known to eat birds and their eggs, small mammals like chipmunks, berries, and nuts.
-Despite being separated by thousands of years, understanding how these ancient parasites evolved does have implications for animals living today. Like with antibiotics, resistance to common heartworm treatments and prevention methods is growing.
+They once ranged all over parts of northern California, southern Oregon, and Washington State, but their population and range shrunk during the 20th century. The animals were valued for their fur and often trapped and skinned, while logging destroyed much of their habitat. They were almost considered extinct until a United States Forest Service biologist discovered a small population in the coastal woods of northern California in 1996. They are currently listed as threatened under the Endangered Species Act and the small populations of martens that remain are at risk due to habitat loss, rodenticides, vehicles, and disease.
-“Understanding where heartworms come from and how different populations are related helps us respond more effectively to disease and drug resistance,” added Slapeta. “Heartworms are not the same everywhere, and local history matters.”
+Scientists from Oregon State University (OSU) recently spent three months documenting the marten population in northern California. To get a sense of the population there, they used non-invasive survey tools, including remote cameras and hair snares. These snares use tape and wire to safely sample hair from animals to collect DNA and other data. The team gathered their marten data via 285 hair snares (made from PVC pipe) and 135 cameras.
-In future studies, more sampling, particularly from regions that are more underrepresented regions could help explain more about the parasite, including that mystery of where Australia’s heartworm first originated.
+
The post This deadly dog ‘spaghetti’ has ancient origins appeared first on Popular Science.
-]]>The post A robot bat sheds new light on how they hunt in darkness appeared first on Popular Science.
-]]>The genetic analysis of the hair identified 46 different martens (18 females and 28 males) living in Klamath, California. At higher elevations, the biggest groups of martens were observed along forested ridgetops with consistent snowpack in the winter. At lower elevations, they were spotted in ravines and wetlands in coastal forests.
-The study was led in part by bat scientist and Smithsonian Tropical Research Institute research associate Inga Geipel. In fact, the robot’s performance largely confirmed Geipel’s hypothesis about real bats. While she expected these results, she still found them gratifying, not so much for herself, but for her furry subjects.
+The team’s findings are detailed in a study recently published in the journal Global Ecology and Conservation. Understanding where these carnivores are living is crucial for informing conservation and land management decisions.
-“I’m always Team Bat,” Geipel tells Popular Science. “They always trick me, they always outsmart me.”
+“Martens tend to select forest stands with greater than 50% canopy cover and lots of large-diameter trees, snags and hollow logs,” Erika Anderson, the study’s lead author and OSU faculty research assistant, said in a statement. “Structural complexity with coarse woody debris helps them hunt and also provides cover from predators and competitors. But despite continued conservation concern over the last 30 years, we have a lot to learn about marten distribution and demography and how forest conditions influence their distribution and density.”
-The study included organizations from Oregon, California, and Wisconsin and took place on ancestral lands of the Yurok and Karuk Tribes. One-third of the study area is owned by the Yurok Tribe, and that land was previously owned and managed for commercial logging. The Yurok Tribe now manages the land for some timber harvesting, plant and wildlife habitat restoration, and cultural resource conservation.
-Bats use echolocation to find their way and hunt for prey. The winged mammals emit rapid clicking sounds from their mouths and listen for the echoes as those sounds bounce off nearby objects, which could include potential meals. By interpreting the timing and strength of those returning echoes, bats can build a detailed acoustic picture of their surroundings.
+“Coastal martens like forests with old-growth characteristics and those types of forests are being threatened by the effects of climate change, including more frequent and severe wildfire, and certain forest management practices,” added study co-author and OSU wildlife ecologist Sean Matthews. “Beyond that, there’s a lot we don’t know about this species, including information as basic as what forests do coastal martens still occupy, how many martens are there, and are these populations increasing.”
-That sonar-based perception process is somewhat akin to the way autonomous vehicles use LiDAR sensors to create a mini map of the world around them. But while self-driving cars rely on dozens of cameras and sensors working in concert, bats accomplish the same task intuitively, with just two ears and a mouth.
+Matthews also describes coastal martens as “among the most adorable animals that call our Pacific Northwest forests home.”
+The post Adorable ferret-sized martens are rebounding in California appeared first on Popular Science.
+]]>The post Penis size may matter more to men than women appeared first on Popular Science.
+]]>Though scientists have long known that bats used echolocation, it was still unclear exactly how they utilize it in the real world, especially in densely packed jungles and rainforests where there are virtually unlimited empty leaves vying for a hungry bat’s attention.
+For years, evolutionary biologists have remained confused by one peculiar aspect of human anatomy. In relation to overall body size, the human penis is usually larger than those belonging to most other primates. The reasons why have remained unclear, although there are plenty of theories related to attracting mates, warding off opponents, and even improving reproductive success.
-

To better understand the psychological influences on humanity’s sexual history, researchers at the University of Western Australia asked over 600 men and 200 women to review computer-generated male bodies with varying shapes, heights, and penis sizes. The men then assessed each example based on how physically and sexually intimidated they felt by them. Meanwhile, the women rated each figure’s hypothetical sexual attractiveness. Each participant either saw a life-sized image or a scaled-to-size alternative.
-To fly into a bat’s world, the team built on Geipel’s nearly 20 years of research. She says her fascination began when she glimpsed one of the flying mammals deftly fluttering through a lightless night sky. Also a lifelong admirer of music and sound, Geipel was captivated by the notion that these creatures could use those senses to “see” in ways humans can’t comprehend. She hoped her future work would shed some light on that intellectual darkness.
+Women most often ranked male bodies more attractive when they exhibited a higher shoulder-to-hip ratio (i.e. a V-shape) and a larger penis. That said, these attributes had their limits. There came a point when overall body and penis sizes offered diminishing returns.
-“Seeing the world through sound is a sensory system that is alien to us,” Geipel said. “I find it highly fascinating that bats can fly in total darkness.”
+Men, if you can believe it, were often a bit more sensitive about possible rivals. Unlike the study’s other volunteers, men consistently rated their same-sex opponents more intimidating as both body and penis sizes increased—with no cap on measurements. At the same time, they also viewed men with larger attributes as a greater sexual threat. Compared with the women’s responses, it appears many men really do believe size matters more than it often does.
-The new robot bat study is something of a spiritual “sequel” to Geipel’s PhD research on bat foraging. That earlier work showed that big-eared bats (Micronycteris microtis) initially approach leaves at a specific angle so that their sonar clicks reflect off smooth forest leaves like an echolocation mirror. Leaves with objects on them, such as insects, scatter the sonar, resulting in the bat receiving a stronger return pulse. From the bat’s perspective, stronger echoes can mean a tasty lunch.
-The team says that their work offers the first experimental evidence of its kind that men assess penis size to judge an opponent’s fighting and sexual prowess. The overlapping responses from both sexes also suggest that increased human penis size is an evolutionary adjustment to attract mates.
-But while that basic theory makes intuitive sense, it also presents a practical problem. For the proposed system to work, bats would seemingly need to know the orientation and position of every leaf they pass, whether or not it holds potential prey. In a forest, a hungry bat would be overwhelmed by the need to constantly analyze a cacophony of echoes from countless leaves muddying its sonar. The bat would essentially spend all its time toiling over the correct angle of approach.
+“While the human penis functions primarily to transfer sperm, our result suggests its unusually large size evolved as a sexual ornament to attract females rather than purely as a badge of status to scare males,” Michael Jennions, a study co-author and University of Western Australia evolutionary biologist, said in a statement. “Although it does both,” he added.
+The post Penis size may matter more to men than women appeared first on Popular Science.
+]]>The post Sony embraces analog and aesthetic with new turntables appeared first on Popular Science.
+]]>“Behavioral experiments had already suggested how these bats might solve the problem of finding prey-occupied leaves, but we wanted to know whether that explanation was actually sufficient to make the behavior work,” paper co-author and University of Cincinnati associate professor of biology, mechanical engineering, and electrical engineering Dieter Vanderelst said in a statement.
+That’s where the idea for the robot came into play. The robo-bat was designed to function as a mechanical stand-in for the real thing, allowing researchers to analyze how the winged mammals approach leaves with and without prey. To do that, the team brought together experts from both biology and engineering in pursuit of a common goal—an interdisciplinary collaboration that isn’t all that common. Geipel says the team drew on the combined knowledge of biologists like herself and engineers capable of modeling the physical world through robotics.
+ + + + See It + +“By building the bat’s hypothesized foraging strategy into a robot and testing it in the physical world, we could ask whether a simple, elegant solution can succeed under complex acoustic conditions, ” Vanderelst added.
+The PS-LX3BT is where the journey begins. This is a Gen Z-friendly “just push play” deck, with one-button full-auto playback, a built-in phono equalizer, and an attached RCA cable so you can be listening as soon as your speakers turn on. Or, with Bluetooth built in (SBC, and aptX Adaptive with compatible devices), just skip the cord. Stream to some new earbuds instead. No shopping for one more box. Low drama, high payoff. A USB output with three-level gain control even lets you digitize your crate-digging easily. Under the clear dust cover (perfect for admiring a colored collectible), you’ll find an integrated cartridge, aluminum platter, and support for 33 1/3 and 45 RPMs (so those 7″ singles will play just as well as the 12″ LPs). Pre-sale starts today at $399.99.
-

When designing the robot, the team wanted a system that closely modeled a bat’s natural foraging technique without adding unnecessary complexity. The resulting bat robot” prioritizes function over form. It consists of a robotic arm with a built-in sonar emitter meant to mimic the chirps a bat produces. At the end of the arm are binaural microphones that serve as the robot bat’s “ears.”
+ +The PS-LX5BT (below) is the upgrade, there to welcome back vinyl lovers with the same conveniences, plus a more rigid one-piece body, a step-up cartridge on an aluminum tonearm, a rubber mat, and circuit refinements that suppress vibration to preserve purity. It’s still automatic, but intended to deliver a richer, wider presentation. There’s the same wireless flexibility, augmented by a higher-grade wired signal path that you can further refine thanks to the removable cable and gold-plated audio jack. And USB output is still on deck, along with that same speed support in an equally clean, minimalist silhouette. It’s not about more features; it’s about more composure. When you get to that track, you’ll stop folding laundry and admire the gatefold. Pre-sale arrives this spring for $499.99 USD.
-The entire apparatus is mounted on a 9.8-foot -long (or three meters) linear track, which functions as a highly condensed flight path. The track is so condensed that it fits in what looks like a small office.
+
The robot performs the tasks necessary to collect crucial research data, but it certainly wouldn’t fool anyone into thinking it was a true doppelganger of its biological inspiration. Personally, Geipel says she would have favored adding googly eyes, but they ultimately passed on the idea for the sake of professionalism.
+

The post Sony embraces analog and aesthetic with new turntables appeared first on Popular Science.
+]]>The post James Webb Space Telescope solves a comet crystal mystery appeared first on Popular Science.
+]]>The “leaves” in this case were 3D-printed cardboard. Some of them had a roughly 3.5-inch-long (nine-centimeters) 3D-printed cardboard dragonfly pinned to their centers to represent potential prey. During the experiment, the robot moved along the track, emitting successive sonar pulses with about a 0.5-second delay between them. The resulting signal data formed what the researchers call an “echo envelope,” which was then wirelessly sent back to the computer controlling the robot arm.
+After years of speculation, scientists finally believe they have figured out the crystal conundrum thanks to new imaging from NASA’s James Webb Space Telescope (JWST). Their explanation, detailed in a paper published this week in the journal Nature, indicates the answer resides near a distant, young star about the same size as our sun.
-After aiming the JWST’s Mid-Infrared Instrument (MIRI) towards the protostar, astronomers identified and mapped the locations of certain materials during EC 53’s active and dormant cycles. They soon noticed crystalline silicates like forsterite and enstatite don’t remain near their stellar birthplace. Jeong-Eun Lee, a study co-author and astronomer at South Korea’s Seoul National University, now believes EC 53 and similar protostars toss their newly created silicates into deep space during these meal times.
-Robotic arm equipped with a sonar head searching and finding an artificial dragonfly on artificial leaves. The laser indicates where the SONAR head is looking. CREDIT: Dieter Vanderelst, University of Cincinnati
+
In total, the team conducted more than 45 trials of the robo-bat flying past various leaf configurations, both with and without prey. The system performed remarkably well. The robot successfully detected leaves with a pinned dragonfly 98 percent of the time and falsely identified prey on empty leaves only 18 percent of the time.
+“EC 53’s layered outflows may lift up these newly formed crystalline silicates and transfer them outward, like they’re on a cosmic highway,” explained Lee. “Webb not only showed us exactly which types of silicates are in the dust near the star, but also where they are both before and during a burst.”
-Critically, the bat robot achieved these results without first assessing the orientation or angle of the leaves, one of the primary questions the researchers aimed to answer. The bat appeared to follow a simple framework: track strong, stable echoes above a certain threshold and ignore those that don’t meet it.
+Doug Johnstone, a study co-author and principal research officer at Canada’s National Research Council added, “Even as a scientist, it is amazing to me that we can find specific silicates in space, including forsterite and enstatite near EC 53.These are common minerals on Earth. The main ingredient of our planet is silicate.”
-While this work specially looks at big-eared bats (Micronycteris microtis), the researchers are hopeful they could apply it to other species.
+While EC 53 has been growing for millions of years, the protostar is far from finished. Lee, Johnstone, and their colleagues estimate the protostar may remain surrounded by its dust cloud for another 100,000 years. During all that time, miniscule rocks and debris should continue to to collide and merge into the building blocks of future gas and terrestrial planets. In the end, a new star system similar to the one orbiting the sun will emerge from EC 53—and its ejected silicates may very well be on their way towards their own comets.
+The post James Webb Space Telescope solves a comet crystal mystery appeared first on Popular Science.
+]]>The post This robot hand can detach from its arm and crawl around appeared first on Popular Science.
+]]>The symmetrical design and flexible fingers mean that the robot can transport objects on either side of its body. For humans, that would look like holding a ball in your palm while simultaneously grasping a piece of fruit on the back of your hand. But the robot hand’s designers say this bizarre form factor is more than just the product of a creepy fever dream: it’s an example of a design that’s more efficient than the human hand, unburdened by natural selection’s pesky constraints.
-Bats have inspired other robots in past studies. In 2017, engineers at Tel Aviv University developed Robat the Robot, a first-of-its-kind autonomous, wheeled device that navigated and explored its surroundings solely using echolocation. Although it couldn’t fly, Robat was equipped with an ultrasonic speaker that emitted bat-like chirps every 30 seconds. It processed the returning echoes through an onboard machine-learning model, which allowed it to identify and avoid obstacles in real time.
+The researchers from Swiss Federal Institute of Technology detailed their findings this week in Nature Communications at the Swiss Federal Institute of Technology Lausanne.
+ -Before that, researchers from Caltech and the University of Illinois at Urbana–Champaign designed Bat Bot, a bat-inspired robot with soft, articulating wings that weighed just 3.2 ounces (93 grams). The major innovation there was the creation of synthetic wings capable of changing shape as they flap, much like those of a real bat. The team achieved this by developing a custom-made, ultra-thin silicone membrane for the wings.
+ +“Evolution is a slow process, whose path is influenced by a variety of developmental and environmental constraints,” the team writes. “It does not explore all that could be possible.”
@@ -826,6482 +822,3940 @@ -The robot Geipel and her colleagues helped create, by contrast, might be less visually impressive than these two earlier examples. However, its function arguably provides researchers with richer data to actually understand with better detail how real living and breathing bats operate.
+The accompanying video shows the robot hand, still attached to its arm mount, picking up a mustard bottle before flipping over and grabbing a can of potato chips using the opposite side of its palm. In another example, it easily lifts a tomato with two fingers while holding a second object between fingers on its far side. The hand then detaches from the arm and scurries forward towards a bannana, flips it upward and secures it on its backside using a single finger.
Looking ahead, Geipel says she and her team hope to expand the research to include a wider range of bat species and see if they can understand more clearly how bats distinguish between different kinds of possible prey clinging to leaves. When it comes to studying bats more broadly, she adds, there is still plenty left to uncover.
+“We are just scratching the surface here,” Geipel said.
-The post A robot bat sheds new light on how they hunt in darkness appeared first on Popular Science.
-]]>The post This weirdly shaped pillow might help you sleep better and it’s 40% off at Amazon right now appeared first on Popular Science.
-]]>According to the team, the robot hand’s fully symmetrical design allows its five fingers and dual thumbs to move with as much flexibility backward as they do forward. That adaptability means it can simultaneously hold up to three different objects, with a combined weight of around five pounds. All that added range of motion gives it the ability to replicate 33 different types of human grasping motions.
-”Despite its remarkable capabilities, the human hand’s asymmetrical shape and single opposable thumb, as well as inherent attachment to the human arm, limit its functionality,” the researchers write.
+Though the design is meant to address the biological limitations of the human hand, it also takes some inspiration from nonhuman animals. Specifically, the researchers point to octopuses and certain insects that use their finger-like limbs to move around and manipulate objects in their environments at the same time. Octopuses, in particular, are capable of opening jars faster than some humans.
-There’s also precedent for this kind of dexterity in robotics. Spot, Boston Dynamics’ dog-like quadruped developed, uses its four limbs to walk, but it can also use an additional claw-like appendage to pick up objects and open doors.
+ +This one is trying to solve two common problems at once: neck support and overheating. The contoured shape is meant to “catch” your head and neck instead of letting you crank sideways all night, and the cooling angle is nice if you’re the kind of sleeper who flips the pillow to find the cold side. It’s $35.98 (40% off), which is about as low-risk as these specialty pillows get.
+To build their robot hand, the engineers began by creating a digital library of human hand grasp postures. They then used a computer algorithm to determine the optimal level of movement and number of fingers to solve both for grabbing and moving.
-If you want the “cooling cervical pillow” idea without overthinking it, this is a straightforward pick at $35.99 (40% off). A contoured pillow can be especially helpful for side sleepers who need a consistent gap-fill between shoulder and head. If you’re trying to stop waking up with that stiff, “what did I do yesterday?” neck feeling, this is a reasonable place to start.
+Interestingly, more fingers aren’t always better. Each additional finger adds mass, increasing the chances that fingers will collide, and making overall movement more clumsy. Researchers found that increasing the finger count from three to five improved the hand’s crawling efficiency, but adding more beyond that resulted in diminishing returns.
-Related: [Robot hands are becoming more human]
-Not everyone wants a “cooling” cover, and not every bedroom needs more specialty fabric. This one is a simpler cervical-style option that still aims for better alignment, and it’s $39.98 (29% off). If you’re experimenting with contour pillows for the first time, pay attention to whether your chin feels pushed up or down—either one is a sign the loft isn’t right for you.
+This approach to robot design runs counter to the growing trend in humanoid robots. Major tech companies in the emerging robotics space—including Figure and Tesla—are investing heavily to create hands that instinctively mimic human design. The underlying idea is that designing robots to function like humans allows them to perform tasks humans already do, without needing any additional specialized equipment.
-The hand crawler takes a different approach. While it’s not yet clear whether this design will be implemented in other robots, one can imagine a humanoid using a hand crawler to perform factory work, then deploying the removable hand to reach distant objects or rummage through narrow, cluttered spaces.
-Of course, if all else fails it could also always be used as an incredibly over-engineered prop on a horror film set.
+The post This robot hand can detach from its arm and crawl around appeared first on Popular Science.
+]]>The post Snow isn’t actually white appeared first on Popular Science.
+]]>But here’s the thing: snow isn’t actually white. It’s just tiny ice crystals, afterall, and ice, like water, looks clear to the naked eye. So why, then, does snow appear white? We talked to a couple of experts to find out: Their answers might surprise you.
-The post This weirdly shaped pillow might help you sleep better and it’s 40% off at Amazon right now appeared first on Popular Science.
-]]>The post British soldier’s long-lost memoir rediscovered in Cleveland appeared first on Popular Science.
-]]>Before determining why a fresh blanket of snow looks white, it helps to know what snow is.
-Although he may not be a household name, many early American history buffs are well acquainted with Shadrack Byfield. The British soldier served at Fort George near the Niagara River during the War of 1812, fighting in multiple battles over the course of the roughly three year-long conflict.
+“Snow is just simply ice,” Jonathan Belles, a senior digital meteorologist for The Weather Channel app and Weather.com, tells Popular Science. All rain starts off as snow, he says, but often melts as it descends through warmer pockets of air before hitting the Earth. Even those warm summer showers in July begin as snow.
-At one point, a musket ball wound forced doctors to amputate Byfield’s left forearm—without anesthesia. After learning his limb had been tossed into a “dung-heap,” the recuperating soldier reportedly retrieved it himself so he could bury it in a makeshift coffin.
+In order for snow to actually fall to Earth, it must remain frozen as it falls through different temperature layers above the ground. In other words, it needs to be cold all the way from the clouds to the ground.
-Byfield returned to England after the war, but his disability prevented him from going back to his previous job as a weaver. After dreaming of an “instrument” to solve the problem, Byfield asked a nearby blacksmith to build the tool for him. In 1840, the veteran published A Narrative of a Light Company Soldier’s Service, a memoir detailing these and other experiences.
+The reason snow appears white has to do with those beautiful natural artworks we call snowflakes. When it snows, “there’s a lot of traffic on the way down,” says Belles. The air, he explains, is riddled with tiny particles like dust, soot, and pollen. For a snowflake to form, a freezing water droplet attaches itself to one of those floating dust, soot, or pollen particles.
-For over 200 years, historians believed the 1840 book to be Byfield’s only manuscript. However, Cambridge University historian Eamonn O’Keeffe recently discovered the only known copy of an entirely separate book in the Western Reserve Historical Society’s library in Cleveland, Ohio. But unlike Byfield’s first publication, his 1851’s History and Conversion of a British Soldier tells his life story from a very different angle.
+As that ice particle falls, more and more minuscule bits of water vapor freezes to it. Due to the way water molecules bond together when they freeze, a tiny hexagonal form begins to appear. And eventually, you end up with a beautiful six-sided shape we call a snowflake.
-“In the 1840 narrative, Byfield sought to impress wealthy patrons by presenting himself as a dutiful soldier and deserving veteran,” O’Keeffe said in an accompanying statement. “The 1851 memoir, by contrast, was a spiritual redemption story, with Byfield tracing his progress from rebellious sinner to devout and repentant Christian.”
+
The second book is also far more confessional. Where A Narrative explored the experiences of a Byfield “comfortably” supporting his family for almost 20 years after receiving his prosthetic forearm, History and Conversion describes his chronic pain and everyday difficulties due to the injury.
+Due to their intricate crystal form, snowflakes reflect light almost like a mirror, and this causes snow to look white. But how exactly does that work?
-“It now pleased the Lord to afflict me with a violent rheumatic pain in my right shoulder, from which the [musket] ball was cut out,” Byfield writes in the latter book. “I was in this condition for nearly three years…oftentimes I was not able to lift my hand to my head, nor a tea-cup to my mouth.”
+Other memories were more unflattering, such as abandoning his army duties to engage in a plundering excursion with other soldiers.
+Mark Serreze, the Director of the National Snow and Ice Data Center in Boulder, Colorado, tells Popular Science that to understand why snow looks white, we have to look to the sun.
-“Such unflattering incidents are conspicuously absent from Byfield’s earlier accounts of his military service,” said O’Keeffe. “In the 1851 memoir, the veteran also dwells on periods of indebtedness, illness and unemployment after returning to England.
+Sunlight “emits all colors of the visible spectrum: red, orange, yellow, blue, green, indigo, and violet.” When these colors hit snow, each multi-sided ice crystal, or snowflake, scatters the colors like a tiny prism. All those colors shine equally in all directions, and our eyes, in turn, perceive all those colors colliding as white.
-But why then does ice and snow look distinct, one clear and one white? “The difference between ice cubes and snowflakes is how light reacts with them,” says Belles.
-Byfield’s difficulties didn’t end after publishing History and Conversion. In 1853, fellow church parishioners accused him of injuring a rival’s eye and face using his prosthetic’s iron hook. The dispute was part of a larger entanglement over rightful control of the village chapel, which eventually grew to include arson, vandalism, and even a riot. Although never convicted of a crime, Byfield and his supporters eventually lost the fight and his job at the time.
+“Sometimes with an ice cube, the light will be able to go straight through it. But with snow we’ve got this kind of broken mirror effect, with light bouncing off of all of those jagged edges.”
-By 1856, Byfield was a widower and returned to his hometown. While he married a second wife, he continued to sometimes struggle financially. In 1867, he published another personal narrative, The Forlorn Hope, and died at the age of 84 in 1874. No copies of this third and final book are known to exist.
+“Uncovering these new details about his life provides remarkable insight into the suffering and resilience of Britain’s homecoming soldiers,” said O’Keeffe. “Byfield’s 1851 memoir emphasises the challenges of post-war reintegration, especially for veterans with disabilities, in the decades after the Napoleonic Wars.”
-The post British soldier’s long-lost memoir rediscovered in Cleveland appeared first on Popular Science.
-]]>The post Veronika the Cow shocks scientists by using a tool appeared first on Popular Science.
-]]>Despite its immaculate reputation, snow isn’t always white.
-“The findings highlight how assumptions about livestock intelligence may reflect gaps in observation rather than genuine cognitive limits,” Alice Auersperg, a study co-author and cognitive biologist at the university, said in a statement.
+“Most of the time, snow does look white,” says Belles. “But things like sand grains might turn snow a little more golden brown, or snow might gain a red hue when there’s rust, or even bacteria or algae” in the air or on the ground.
-
Take what’s known as “watermelon snow” (a.k.a. pink snow, blood snow, or red snow). These patches of red-hued snow are the result of Chlamydomonas nivalis, a type of cold-loving green algae that thrives in freezing water. The red color comes from a bright red carotenoid pigment that acts like a sunscreen, protecting the algae’s green chlorophyll from harmful UV rays and making snow appear pinkish to reddish. It’s a phenomenon that’s common in high-altitude, snowy areas, such as California’s Sierra Nevada mountains, the French and Italian Alps, and Asia’s Himalayas.
-
In biology, tool use is defined using an external object to achieve a goal through mechanical means. It is used by both biologists and anthropologists as a key indicator of a species’ brain and cognitive development. In humans, the Oldowan tool kit—three specific stone tools that date back roughly 2.9 million years—is considered the earliest known example of our species using stone tools.
+In Antarctica, penguin droppings (guano) often stain snow pink due to pigments from the foods they eat, most notably krill.
-Elsewhere in the animal kingdom, chimpanzees use sticks as tools to access bugs and honey, while crows also use sticks to probe for hidden sources of food. Humpback whales catch fish using “bubble nets,” which some scientists also consider to be a type of tool use.
+Then there’s the bluish tint of glaciers, often seen in places like Iceland and Alaska. This coloring occurs because deep, compact ice absorbs light’s longer wavelengths—like reds and yellows—and scatters shorter blue wavelengths back toward our eyes.
-Veronika is a 13-year-old Swiss Brown cow that is not farmed for meat or milk. She belongs to organic farmer and baker Witgar Wiegele as a companion. Over 10 years ago, Witgar noticed that Veronika would occasionally grab sticks and use them to scratch. Study co-author and animal cognition researcher Antonio Osuna-Mascaró tells Popular Science that Witgar said Veronika was very clumsy at first, but has improved her technique considerably over the years.
+Albedo is the measure of how much sunlight a surface reflects. While zero albedo means a surface has no reflection at all (freshly paved asphalt has almost zero albedo), one albedo (100 percent reflection) stands for a perfectly white surface.
-Witgar recorded a video of the behavior and shared it with Auersperg.
+“A grass lawn might have an albedo of 0.20,” says Serreze, with tiny molecules called chlorophyll absorbing the red and blue lights that grass needs for photosynthesis, but reflecting green light since grass doesn’t use it in photosynthesis.
-“When I saw the footage, it was immediately clear that this was not accidental,” she recalls. “This was a meaningful example of tool use in a species that is rarely considered from a cognitive perspective.”
+“Very fresh snow can be 0.85 [albedo], or even a little higher, meaning it’s very reflective. However, if you start putting particulates on the snow, like soot or smoke, its reflectivity drops.”
-
When snow is full of added particulates, it also absorbs more energy. This causes the snow to melt faster, because darker colors absorb the sun’s rays rather than reflect them as white does. Quickly melting snow has a negative impact on the world’s water sources, causing water scarcity, which contributes to negative global warming trends.
+Along with Osuna-Mascaró, Auersperg conducted systematic behavioral tests with Veronika. In a series of controlled trials, they presented the cow with a deck brush that was positioned on the ground in random spots. They then recorded which end Veronika selected and which body region she targeted.
+Across repeated sessions, they found that her choices were consistent and functionally appropriate for the body regions she targeted.
+Clouds can also often play a role in the way snow looks. “For instance,” says Serreze, “they can contribute to what we call a whiteout,” a severe and dangerous winter weather condition in which it’s nearly impossible to distinguish between snow and sky.
-Low-lying stratus clouds, the kind that cover the sky like a sheet, and a snow-covered surface will reflect light equally, completely messing with your depth perception. It’s often referred to as “flat light,” meaning it’s a diffused light that eliminates shadows, making everything appear uniform.
-“We show that a cow can engage in genuinely flexible tool use,” added Osuna-Mascaró. “Veronika is not just using an object to scratch herself. She uses different parts of the same tool for different purposes, and she applies different techniques depending on the function of the tool and the body region.”
+There’s also what’s known as photokeratitis, or snow blindness. “Think of snowflakes as the tiny parts of a broken mirror stuck together. Shine a flashlight into those parts and you’re going to blind yourself. When the sun’s light hits all those individual snowflakes, it scatters that light straight back at you,” says Belles.
+Snow’s ability to reflect the sun’s UV light is why you can also get major sunburn when skiing or outside in the snow. Consider wearing sunglasses or wrap-around goggles when it snows to protect your eyes, and use plenty of sunscreen to guard against UV rays.
-And next time you look at a blanket of freshly fallen white snow, remember that what you’re really seeing is all of the colors of the rainbow. Those colors just appear to be pristine white.
-Researchers observed that Veronika typically prefers to use the bristled end of a deck brush when scratching the broad, firm areas of her body such as her back. However, when targeting the softer and more sensitive regions of her lower body, she switches over to the smooth stick end.
+In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
+The post Snow isn’t actually white appeared first on Popular Science.
+]]>The post Snow monkeys love hot springs. They’re also good for them. appeared first on Popular Science.
+]]>She also adjusts how she handles the tool. When scratching her upper body, Veronika uses more wide and forceful movements, while her lower-body scratching is slower, more careful, and highly controlled.
+“Hot spring bathing is one of the most unusual behaviors seen in nonhuman primates,” said Abdullah Langgeng, a Ph.D. student at Kyoto University.
-Unusual and also potentially beneficial. Bathing like this may influence the macaque’s parasites and gut microbes, according to a study Langgeng co-authored that was recently published in the journal Primates.
-The team believes that Veronika’s actions meet the standard definition of tool use, but also go one step further. They describe her scratching as flexible, multi-purpose tool use, meaning that she uses different features of the same object to achieve a different outcome. Multi-purpose tool use like this is extraordinarily rare. Outside of our species, it has only previously been documented convincingly in chimpanzees.
+Japanese macaques live on three of Japan’s four main islands (Honshu, Shikoku, and Kyushu) as well as the smaller islands of Awaji, Shodo, Yakushima, Kinkazan, and Kojim. Their northern limit is on the tip of Honshu Island. Over three feet of snow can cover parts of this area for several months out of the year and temperatures can reach as low as -4 degrees Fahrenheit. The snow monkeys who live here are considered the world’s northernmost wild populations of all non-human primates.
-“Because she is using the tool on her own body, this represents an egocentric form of tool use, which is generally considered less complex than tool use directed at external objects,” said Osuna-Mascaró. “At the same time, she faces clear physical constraints, as she must manipulate tools with her mouth. What is striking is how she compensates for these limitations, anticipating the outcome of her actions and adjusting her grip and movements accordingly.”
+In the study, the team traveled to Jigokudani Snow Monkey Park in central Japan’s Nagano prefecture on Honshu Island. Over two winters, the scientists monitored a group of female macaques, comparing those that regularly bathed in the hot springs with the ones that did not. They also collected fecal samples to monitor the monkeys’ parasites and ran genetic sequencing on the organisms in their gut microbiome.
-
Combining the observations and testing helped the team test whether or not bathing influences the macaque holobiont—a biological system made up of a host and all of the parasites and microbes associated with it.
-Importantly, the authors note that Veronika’s life circumstances may have played a major role in the emergence of this behavior. Most cows do not live to 13 or spend their days in open and complex environments. They are also rarely given the opportunity to interact with a variety of manipulable objects. Her long lifespan, daily contact with humans, and access to an engaging physical landscape likely created favorable conditions for her to explore and innovate.
+
The team plans to investigate which environmental and social conditions allow these kinds of behaviors to pop up in livestock species, and see how many similar cases may have gone unnoticed simply because no one was looking for them.
+They found that bathing in hot springs subtly reshapes the snow monkeys’ relationships with their parasites and gut microbes. The macaques that bathe showed different lice distributions and gut bacteria. Soaking in the warm water may disrupt louse activity or egg placement within their fur.
-“Because we suspect this ability may be more widespread than currently documented,” Osuna-Mascaró said, “we invite readers who have observed cows or bulls using sticks or other handheld objects for purposeful actions to contact us.”
-The post Veronika the Cow shocks scientists by using a tool appeared first on Popular Science.
-]]>The post Tyrannosaurus rex took 40 years to reach full size appeared first on Popular Science.
-]]>As for the gut microbes, the team observed similar subtle shifts. Overall microbiome diversity was similar between bathers and non-bathers. However, several types of bacteria were more abundant in the monkeys who did not bathe. Despite concerns that shared hot springs may increase exposure to intestinal parasites, the bathing macaques did not have higher parasite infection rates or intensities than those that stayed out of the water.
-Based on the annual growth rings (like those on trees) within fossilized leg bones, scientists estimate that T. rex usually reach adulthood at around 25 years old. However, new research argues that their growth phase lasted significantly longer. They may have become fully grown—approximately eight tons—after 40 years. The paper was recently published in the journal PeerJ.
+According to the team, these results demonstrate how behavior can shape the parasites and microbes living on and inside an organism and are an important driver of animal health. It also underscores just how complex behavior-health links are in wild animals, suggesting that hot spring bathing influences some host-organism relationships, but not others.
-To produce an updated timeline of tyrannosaur growth, scientists studied 17 tyrannosaur specimens of all ages.
+“Behavior is often treated as a response to the environment,” Langgeng added. “But our results show that this behavior doesn’t just affect thermoregulation or stress: it also alters how macaques interact with parasites and microbes that live on and inside them.”
-“We came up with a new statistical approach that stitches together growth records from different specimens to estimate the growth trajectory of T. rex across all stages of life in greater detail than any previous study,” Nathan Myhrvold, a mathematician and paleobiologist at Intellectual Ventures and co-author of the new study said in a statement. “The composite growth curve provides a much more realistic view of how Tyrannosaurus grew and how much they varied in size.”
+Showing that animal behavior can selectively shape what types of microorganisms are living on their fur or inside their guts can help researchers understand how actions that influence animal health evolved. It can also help us better interpret changes in the microbiome in social animals.
-The team then studied bone slices from the specimens with a type of light that unveils previously overlooked growth rings within the bones. The T. rex bone slices—or cross sections—only consist of the animal’s most recent one to two decades.
+While more research is needed, it also shows parallels to how human cultural practices such as bathing can affect microbial exposure. While clean water is essential for health, this work challenges the assumption that sharing water sources in natural conditions like hot springs increases disease risk.
+The post Snow monkeys love hot springs. They’re also good for them. appeared first on Popular Science.
+]]>The post Do trees really explode in extreme cold? appeared first on Popular Science.
+]]>“Examining the growth rings preserved in the fossilized bones allowed us to reconstruct the animals’ year-by-year growth histories,” said Holly Woodward, a study co-author and a professor of anatomy at Oklahoma State University.
+“EXPLODING TREES are possible in the Midwest and Northern Plains on Friday and Saturday, as temperatures are forecasted to fall 20 degrees BELOW zero!” Max Velocity, a popular meteorology account, cautioned his over 262,000 Facebook followers on January 20.
-Together, with co-author and Chapman University paleontologist Jack Horner, Myhrvold and Woodward, assembled a large T. rex data set. From all of this data, it appears that the iconic beast followed the tortoise’s advice—it grew more slowly and steadily than what researchers thought.
+Another widely syndicated news article proclaimed,“Meteorologists warn that temperatures falling 20 degrees below zero could cause trees to split suddenly, posing risks to people, homes, vehicles, and power lines across North Dakota, South Dakota, Minnesota, Wisconsin, Iowa, and Michigan.”
-
Although the “exploding tree” phenomenon is a real thing, the underlying physics isn’t as worrisome as it sounds. But to understand this relatively common occurrence, it’s far more crucial (and potentially lifesaving) to know about the climate that causes trees to rupture.
-What’s more, the dinosaur’s long growth period might have enabled it to carry out diverse ecological roles before becoming fully grown, Horner explained. This also might be one of the reasons why they ruled at the top of the food chain toward the end of the Cretaceous Period.
+The study also indicates that some of the 17 tyrannosaur specimens might actually not be T. rexes, joining other research suggesting the misidentification of some T. rex specimens. For example, a 2025 study argues that some small fossils, which some researchers thought were young T. rexes, actually belonged to a smaller relative, Nanotyrannus.
+The winter deluge set to inundate as many as 230 million people in the U.S. this weekend is only possible through a combination of both the polar vortex and the ongoing climate crisis. Although the vortex usually only makes headlines as it bears down on the country, it’s actually one of the two air formations constantly swirling above the planet’s polar regions.
-According to the team, these earlier propositions are still controversial and heavily debated. However, their study highlights the possibility that two famous specimens, dubbed Jane and Petey, might not be the same species, as well as other potential reasons why their growth curves are statistically incompatible. Interestingly, these are the same specimens that other recent research categorized as two different Nanotyrannus species.
-The post Tyrannosaurus rex took 40 years to reach full size appeared first on Popular Science.
-]]>The post Amazon has this 262-piece Craftsman Mechanic Tool set for just $129 (down from $249) appeared first on Popular Science.
-]]>In the Northern Hemisphere, the polar vortex remains above the Arctic for most of the year, but occasionally stretches further south after interacting with an unusually warm upper atmosphere. Combine that with moisture from California and the Gulf of Mexico, and you get a mass of bitterly cold air, heavy snowfall, and life-threatening conditions.
-The opposite happens in the Southern Hemisphere, when the polar vortex around Antarctica creeps northward. However, the southern Antarctic polar vortex outbreaks do not typically reach as many populated areas as the northern Arctic polar vortex does.
-
+If it feels like polar vortex storms are occurring more often than in the past, you’re probably onto something. Multiple studies show a clear increase in linked weather events, many fueled by rapidly warming Arctic temperatures. That certainly seems to be the case right now.According to the National Snow and Ice Data Center, Arctic sea ice is currently at an all-time low for this time of year.
-Craftsman
-A polar vortex outbreak can quickly turn deadly once it arrives. Anyone without proper protection from the freezing temperatures could start to see the beginning stages of hypothermia within an hour of direct exposure. Downed power lines, automobile accidents, and delayed first responders only add to the dangers, while temperatures often remain below freezing long after the weather subsides.
+ + +This is the “stop borrowing tools and start fixing your own stuff” bundle. You get a deep mix of sockets and wrenches (SAE and metric) plus a drawer setup that keeps the small parts from turning into a chaotic pile. If you do basic car work, bike maintenance, or even just assemble a lot of furniture, a comprehensive kit like this saves time because you actually have the right size on hand.
+Although many people on the internet are warning about exploding trees, it’s not exactly worth the worry. That’s not to say they don’t happen. Naturalists have described similar experiences for centuries—but few (if any) cite their deadly consequences, and they’re definitely not as dramatic as they literally sound.
-“In the great frost in 1683, the trunks of oak, ash, walnut, and other trees, were miserably split and cleft, so that they might be seen through, and the cracks often attended with dreadful noises like the explosion of fire-arms,” wrote 18th-century Scottish botanist John Claudius Loudon in his Encyclopaedia of Gardening. “In the frost of 1837–8 large bushes of heath had their stems split by the frost into shreds, and the wood of the evergreen oak and that of the sweet bay was cracked and split in a similar manner.”
- -Some Indigenous cultures are so familiar with the occurrences that they use them to mark their lunar calendar cycles. For example, the Lakota people of the Dakotas designate one winter period as Cannápopa Wi, the “Moon When Trees Crack From The Cold.”
-An impact wrench is the fast lane for lug nuts and stubborn bolts that laugh at a regular ratchet. This one runs on the V20 platform and includes a 4Ah battery and charger, so it’s a legit starter kit if you don’t already own into the ecosystem. It’s also the kind of tool you’ll use once, then wonder why you waited.
+Trees explode—or, more accurately crack—similarly to how you lost a favorite water bottle after leaving it in the freezer for too long. Once temperatures dip below 32 degrees, the sap inside certain trees begins to solidify and expand. If it is particularly frigid, around -20 degrees or lower,the outside bark shrinks faster than the bark on the inside. Eventually, the stress wins out and causes the exterior to snap, producing a loud “bang” in the process.
-“This is most likely to happen on clear, calm nights, especially late night into early morning when temperatures fall quickly,” meteorologist Shawn Cable explained. “It can happen to a lot of different types of trees, but some common ones around here include maples, ash, apple or crabapple, poplar or cottonwood, and willow, along with younger trees that haven’t yet developed thicker bark.”
- - - - See It - -The damage is occasionally harmful to the tree itself, but even then, it’s often able to continue growing once the spring thaw arrives. In any case, exploding trees aren’t something to avoid—but the polar vortex that can cause it certainly is.
-If your “workshop” is really a corner of the garage (or the trunk of your car), rolling storage is the difference between being prepared and digging through a mess. A modular tower like this keeps larger tools separated from small parts, and the wheels make it realistic to move everything in one trip instead of five. It’s especially useful if you bounce between indoor projects and outdoor fixes.
+To prepare ahead of extreme cold, the National Weather Service recommends following updated forecasts and adjusting plans accordingly to avoid being stranded in the cold. If driving, also make sure that your car has at least a half a tank of gas so that you can stay warm if you become stranded and be sure your winter car kit is updated.
-
Limit time outside whenever possible during extreme cold. If you need to venture outside, wear layers of warm clothing (and sunscreen) and watch for signs of frostbite and hypothermia. Frostbite can set in in 30 minutes or less when the wind chill is -15 degrees or lower.
-Also, be extremely careful when operating a generator due to a power outage. Improper use can result in carbon monoxide poisoning and other dangers.
-If power does go out, follow these tips to help keep you and your family warm safe.
-In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
The post Do trees really explode in extreme cold? appeared first on Popular Science.
+]]>The post How Nissan improved the wireless charging pad for faster phone juice-ups appeared first on Popular Science.
+]]>Automaker Nissan is staking its claim on wireless charging with its 2026 Pathfinder and Murano vehicles, both of which feature newly designed, built-in wireless chargers that keep your gadgets cool and in place while you’re on the move. Plus, Nissan says it’s the first automaker to offer Qi2 wireless charging in the US since the Wireless Power Consortium released the latest version of the Qi2 standard in July 2025. This updated standard supports a consistent 15W charging rate, up from the spotty 5-15W maximum rate set way back in October 2015, when the Qi Extended Power Profile was first introduced. That means one of these Nissans can and will charge your phone at the same rate as plugging it into a wall in your office.
-Nissan’s Qi2 wireless charging solution includes a magnet and a fan, elements that help keep the phone in place and keep it cool. For users, that means less charging angst and more certainty that phones will be charged as expected. For as much as America lives and dies by their smartphones, that’s a critical element.
-
Qi, as defined by tech leviathan Lenovo, is a universal wireless charging standard that uses electromagnetic induction to transfer power from a Qi-enabled charging pad to a device. The key to seamless power transfer is a coil inside both the charging pad and the device; the pad generates an electromagnetic field, which the coil in the smartphone converts to energy that charges the battery.
-Those coils must remain aligned for optimal charging. Smartphones aren’t one-size-fits-all, and there are different sizes and shapes that don’t all fit neatly on the charging pad. Nissan has addressed the issue by integrating a raised magnetized circle above the pad that lines up the coils and gets the electrons moving.
-“If you misplace your phone or it shifts while driving, you’re not going to enjoy a full speed of charge because that off position means you’re losing a lot of charging efficiency to heat,” says Nissan engineer Matt Zimmerman. “By positioning the phone correctly, you’re going to be able to enjoy the maximum efficiency of the charger more at the time.” Plus, if you’re the kind of driver who likes to take corners like a racecar driver, your phone is likely to become a projectile unless it’s securely attached.
-Zimmerman helped build the new charger from the Nissan Technical Center North America in Farmington Hills, Michigan. Wattage and thermal management are key for this technology, he says, for maximum efficiency. It’s critical the wattage from the charging pad exceeds the power usage by the device; otherwise, users will find the phone just gets hot and stops charging.
-“Keep in mind that if you’re running Spotify, Apple Maps, Waze, or something like that, you can be using almost five watts just to keep your phone operating those tasks, even with the screen off,” Zimmerman says. “With previous generation chargers that have a limitation of five watts, you’re barely keeping pace.”
-Thermal management has been a common challenge in earlier generations of wireless charging systems. The addition of a fan in Nissan’s design reduces the amount of generated heat for both the pad and the phone, in turn reducing the risk of overheating. Like anything else (and most people), smartphones don’t work well when overheated. Further, they charge faster when cooler, so cooling is not just preventative but efficient.
-
Using a magnet is a simple concept, but it works. Some devices—like later model iPhones, for example—have camera lenses that protrude from the body of the device. Placing a phone with these types of protrusions on a charging pad means it’s not lying flat, and thus is not connected as securely or as evenly.
-When you place a phone on a charging pad, the phone and pad are in constant negotiation with each other, Zimmerman explains.
-“When a phone overheats, it’s talking to our charging pad and our car and communicating that it needs to negotiate a lower charge amount,” he says. “So, keeping the phones and the charging devices properly aligned helps keep them cool. This is all really important to maximize charging speed.”
-Nissan also includes an LED light for charging indication; a solid orange light means charging is in progress, and a green light shows the phone is fully charged. A flashing orange light indicates a foreign object is detected, like keys or a wallet that might be getting in the way of your digital lifeblood.
-The new wireless charger is a standard feature on the 2026 Murano, already available at dealerships, and on some 2026 Pathfinder models, expected to start showing up on dealer lots early this year.
+The post How Nissan improved the wireless charging pad for faster phone juice-ups appeared first on Popular Science.
+]]>The post Sony’s new LinkBuds Clip make situational awareness look clean appeared first on Popular Science.
+]]>No, this style isn’t new, just new to Sony. But with its intentionally wearable colorways (black, greige, green, lavender), the LinkBuds Clip reads like an accessory, not a gadget. And on top of that, there are equally colorful case covers so you can create monoblocking masterpieces. They can go with an outfit, not just be part of your gym uniform. But just because the LinkBuds Clip doesn’t look as industrial as other open earbuds doesn’t mean there’s not tech and tuning instincts from the 1000X series packed in.
-Inside, there’s a 10mm driver that sits outside your ear canal and fires sound in. Sony builds in three listening modes you can tap-switch thru—Standard playback, Voice Boost for podcasts and voice-led videos, and Sound Leakage Reduction if you’re sharing a particularly quiet environment. Backing those sound profiles are some flagship personalization features in the Sound Connect app, including DSEE upscaling for restoring streaming music’s detail, 360 Reality Audio for spatialization, Adaptive Volume, and a 10-band EQ with presets. When it comes to the call stack and intelligibility, a bone-conduction sensor helps capture your voice, while AI noise reduction scrubs the background. There’s also Multipoint Connection (using the SBC/AAC Bluetooth codecs) and an IPX4 rating for sweat and light splashes. Battery life is rated up to 37 hours with the case, and a 3-minute quick charge can buy about an hour of listening.
-We’ve been testing a pair around the house (see below), and the consensus is they’re cute, comfy, and fashion-forward ear jewelry enough to want to wear them out and about. But talking fit, not just your fit, they feel good even if you’re lying on your side on the couch listening to podcasts, which not all in-canal earbuds do. And the sound is pretty full (not to be confused with loud), considering you’re not ensconsed in a noise-cancelling bubble. We’ll share more impressions as we spend time with them.
-
The Sony LinkBuds Clip are available now for $229.99 USD / $299.99 CAD; optional case covers and Fitting Cushions are sold separately for $24.99.
The post Amazon has this 262-piece Craftsman Mechanic Tool set for just $129 (down from $249) appeared first on Popular Science.
-]]>The post Toyota is drag racing hydrogen-powered trucks in the Arizona desert appeared first on Popular Science.
-]]>The post Sony’s new LinkBuds Clip make situational awareness look clean appeared first on Popular Science.
+]]>The post World’s oldest-known rock art found in Indonesian cave appeared first on Popular Science.
+]]>In December, Toyota announced its intention to amp up US hydrogen infrastructure by investing in FirstElement Fuel, the largest retail hydrogen fueling infrastructure provider in California. The automaker has spent the last 30 years researching and developing hydrogen fuel cells; in fact, Toyota has a full campus in Gardena, California, dedicated just to hydrogen research. While it has been refining hydrogen fuel-cell technologies since 2001, the campus was just renamed the Toyota North American Hydrogen Headquarters (which it calls H2HQ), in 2024.
+Toyota debuted the hydrogen-powered Mirai sedan back in 2015, but so far it’s only available in California, the only place in the country where hydrogen pumps are available for passenger cars. At its Arizona proving grounds, Toyota also tests its heavy-duty class 8 hydrogen fuel-cell trucks, racing them against their diesel siblings. I had the chance to ride shotgun in the FCEV and diesel-powered semi on two separate test runs, and the hydrogen truck is vastly cleaner, quicker, and spits water from its tailpipe instead of noxious fumes. However, getting the rest of the country to adopt H2 is a long game.
+The cave paintings were discovered by an international team of researchers preserved in limestone caves on one of Sulawesi’s satellite islands called Muna. The team found a fragmentary hand stencil on the wall.
-
A hand stencil is an outline or template of human hands that are often found on ancient cave paintings. The hand may have been made by tracing the hand (or using it as a stencil), putting charcoal powder into a reed like a straw and spraying the powder around the hand’s shape, or simply eyeballing it. Some hand stencil. Some hand stencils are engraved into the wall rather than painted on. Hand stencils have been found in caves in Europe, North America, and throughout Southeast Asia.
-Importantly, the hand stencil in this Muna cave is surrounded by more recent painted art. To help determine the art’s age, the team used uranium-series dating techniques, analyzing the microscopic mineral deposits that formed both on top of and, in some cases, beneath other cave paintings.
-Bearing the symbol H and atomic number 1, hydrogen is the lightest and most abundant element in the universe. It can be produced via steam methane reformation, electrolysis, and biomass gasification and hydrogen separation. Fuel cells generate electricity through an electrochemical reaction, not combustion, and are used to provide power for homes, businesses, and transportation. They don’t need to be periodically recharged like batteries, just access to a source of more fuel.
+
A fuel cell is composed of an anode, cathode, and an electrolyte membrane. According to the D.C.-based Fuel Cell & Hydrogen Energy Association, this is how the process works:
+The team dated the hand stencil to a minimum of 67,800 years ago, making it the oldest reliably dated cave art yet discovered. In 2024, the same team discovered a rock painting in Sulawesi that is about 15,000 years younger. The team believes that the paintings were likely created by a population that is closely linked to the ancestors of Indigenous Australians.
-This hand stencil also indicates that the Muna cave was used for making art over a long period of time. Paintings were repeatedly produced there for at least 35,000 years, continuing until roughly 20,000 years ago.
-“It is now evident from our new phase of research that Sulawesi was home to one of the world’s richest and most longstanding artistic cultures, one with origins in the earliest history of human occupation of the island at least 67,800 years ago,” Maxime Aubert, a study co-author, archaeologist and geochemist from Australia’s Griffith University, said in a statement.
-
Additionally, the team found that this hand stencil is a globally unique variant of this ancient art motif. After the stencil was created, it was changed to deliberately narrow the negative outlines of the fingers. The result is a more claw-like hand. Why the artist used narrowed fingers is not exactly clear.
-“I think a lot of folks think it’s a very complex system, but it’s just a battery with an anodic cathode; the chemical reaction happens silently as you add hydrogen to the system,” says Debby Byrne, an executive program manager at Toyota North America. “There’s no moving parts, so you get that benefit as well. You’re not taking it into the dealership for oil changes, and you get less wear and tear compared to a piston-driven engine.”
+“This art could symbolise the idea that humans and animals were closely connected, something we already seem to see in the very early painted art of Sulawesi, with at least one instance of a scene portraying figures that we interpret as representations of part-human, part-animal beings,” study co-author and archeologist Adam Brumm added.
-Oil- and gas-fueled vehicles aren’t a risk-free process either. Gasoline tanks can be dangerous if they’re not made with high-quality materials and processes, and even though the safety measures have come a long way you’ll still see warnings about static electricity on gas pumps across America. Oil is expensive to collect, too, but the infrastructure and support is well established.
+Toyota uses the same level of detail and attention to safety when it comes to building its hydrogen fuel-cell vehicles as it does for its gas and hybrid cars, trucks, and SUVs. Plus, hydrogen sensors detect a leak or a collision, Toyota says; in case of an accident, the hydrogen tank valves are designed to close, preventing any additional hydrogen from escaping.
+The team believes that this also has far-reaching implications for understanding the history of Australian Aboriginal culture.
-
“It is very likely that the people who made these paintings in Sulawesi were part of the broader population that would later spread through the region and ultimately reach Australia,” said Dr. Adhi Agus Oktaviana, a study co-author and rock art specialist from Indonesia.
-The timing of initial human occupation of Sahul—the Pleistocene-era supercontinent that is now Australia, Tasmania, and New Guinea—has been debated among archeologists. In what scientists call the short chronology model, the first people entered Sahul about 50,000 years ago. In the opposing long chronology model, people arrived at least 65,000 years ago.
-Hydrogen is a clean energy that may be produced using solar power, wind, and biowaste. Toyota and Connecticut-based FuelCell Energy launched the first-of-its-kind “Tri-gen” system in 2023, which uses biogas from a nearby wastewater treatment facility to produce renewable electricity, renewable hydrogen, and usable water. These products are used for port vehicle processing operations at Toyota Logistic Services Long Beach. .
+
Toyota says the use of renewable electricity helps reduce more than 9,000 tons of anticipated CO2 emissions per year, while unused electricity is returned to the local utility. Every day, the Tri-gen facility produces up to 1,200 kilograms of hydrogen daily for fuel-cell electric vehicles, including large class 8 semi trucks, and it recycles about 1,400 gallons of water every day.
+“This discovery strongly supports the idea that the ancestors of the First Australians were in Sahul by 65,000 years ago,” Dr. Oktaviana added.
-That recycled H2O is used to wash vehicles just arriving from the plant in Japan prior to delivery, which reduces water waste from the local plant. Notably, Toyota and FuelCell’s Tri-gen facility was honored with the US Department of Energy’s 2025 Better Project Award in May. The Better Project Award recognizes innovation in energy, water, and waste reduction efficiency.
+Researchers also believe that there were two main migration routes into Sahul. The northern route to the New Guinea portion of this landmass went through Sulawesi and the Spice Islands. In the more southerly route, sea voyagers traveled directly to the Australian mainland via Timor or nearby islands.
-Toyota sees it as a “game changer” for the world, but it has its fair share of skeptics and naysayers. Toyota hosted me and a select group of journalists for a tour of its 12,000-acre testing ground in Arizona recently, and Caleb Jacobs from The Drive entered a skeptic and emerged enlightened, if not completely convinced about hydrogen power. It became clear, he says, that Toyota views hydrogen as a solution for a future not yet clear to the everyday person.
+“With the dating of this extremely ancient rock art in Sulawesi, we now have the oldest direct evidence for the presence of modern humans along this northern migration corridor into Sahul,” said Renaud Joannes-Boyau, a study co-author and archaeologist at Southern Cross University in Australia.
-
With funding from the Australian Research Council, the team will continue to look for more ancient art and other archaeological finds.
-Take Toyota’s H2-Overland concept, unveiled at the SEMA show in November, which collects and filters water produced by the fuel cell. Users can then use that replenishing water supply for non-potable functions like washing hands or dishes.
+“These discoveries underscore the archaeological importance of the many other Indonesian islands between Sulawesi and westernmost New Guinea,” Aubert concluded.
+The post World’s oldest-known rock art found in Indonesian cave appeared first on Popular Science.
+]]>The post The 10 weirdest and wildest musical instruments of 2026 appeared first on Popular Science.
+]]>“Imagine that same idea,” Jacobs says, “but with industrial generators and power supplies.”
-The post Toyota is drag racing hydrogen-powered trucks in the Arizona desert appeared first on Popular Science.
-]]>The post Female mice often have multiple sexual partners—for survival appeared first on Popular Science.
-]]>The top ten selections include entries from Australia, Poland, India, and the United Kingdom, but all of this year’s instruments push the boundaries of musicality, performance, and artistry in new, unexpected ways. This year, entrants include the seven-foot-tall synthesis of a double-bass and the classical Indian instrument known as a rudraveena, a “cyborg woodwind,” as well as a device that converts the invisible electromagnetic waves all around us into a “scientific séance.”
-“Such multiply-sired litters have been suggested to produce benefits in low-quality environments that may be masked in higher-quality environments,” the researchers write in a study recently published in BMC Ecology and Evolution. “So far, however, the effect of environmental quality has only been tested in birds with equivocal evidence.”
+Last year’s first-place winner, the Chromaphone, was a collaborative project that utilized a simple, flat surface to generate synthesizer tones. It remains to be seen what will take the top spot and a $10,000 prize in March, but it’s gonna be hard to top last year’s Dinosaur Choir.
-Within this context, two researchers from the Max Planck Institute for Evolutionary Biology in Germany investigated polyandry in western house mice (Mus musculus domesticus). The team put hundreds of mice in each of a number of enclosures mimicking wild habitats. For four years, they gave the mice in some of the enclosures a high-quality diet. The others received a typical, less nutritious diet.They then tracked the mice’s mating behaviors and the results to shed light on reproduction methods in the face of this resource variable.
+Take a look at this year’s contestants below. (Click to expand images to full screen.)
-Ultimately, around one-third of litters in both the high-quality and lower-quality food habitats had more than one father. However, larger litters (the benefit of polyandry quantified by the study) only came from the lower-quality food habitats, with mothers birthing large litters in high-quality food habitats no matter the number of fathers. This indicates that the benefit of polyandry likely depends on the environment, particularly the food quality for the mother.
-“Our results suggested that polyandry provides greater lifetime fitness benefits when resources are of poorer quality,” the team explains in the study. “In other words, polyandry potentially yields its greatest advantages when resources are a limiting factor, but contributes little when conditions are already favourable.”
+
The results also highlight that a specific reproductive behavior can result from particular situations. In times of lower quality resources, females might engage in polyandry in a way that raises the probability of some babies’ survival. This strategy is called bet-hedging, and it might not be as needed when there is lots of food. However, females still usually engage in it, pointing toward another inquiry—why?
+This modular synth swaps patch cables for a pool of salt water. Its engineering forces components to communicate through liquid, creating a “liquid circuit” where chemical currents and ripples shape the signal. The result is evolving, organic audio that behaves more like a living organism than a machine.
-The study paves the way for future research into how and why shifts in ecological pressures impact animal mating behaviors, potentially furthering our understanding of certain differences among species in changing habitats.
-The post Female mice often have multiple sexual partners—for survival appeared first on Popular Science.
-]]>The post A huge iceberg becomes a deadly trap for penguins appeared first on Popular Science.
-]]>According to a research team led by Dr. Jeong-hoon Kim of the Korea Polar Research Institute (KOPRI), survival rates at the colony plummeted by 70 percent. Satellite analysis and drone surveys reveal that the population of new chicks fell from roughly 21,000 last year to just 6,700 this season.
+
A device that turns the invisible electromagnetic world into an instrument of “scientific séance.” Using a grid of 33 inductors, it captures frequencies from everyday electronics—like phones and drills—converting them into 3-channel audio, MIDI, and control voltage. Its triphonic design allows performers to “bow” or “strike” the signals of the modern world to sculpt everything from melismatic drones to synesthetic visuals.
-The primary cause of this event was an iceberg, spanning nearly 14 kilometers. Field observations by KOPRI researchers Jong-U Kim and Youmin Kim confirmed that the ice had obstructed the critical gateway connecting the breeding ground to the open ocean.
+Satellite analysis indicates the iceberg calved from the Nansen Ice Shelf in March 2025. It drifted northward before grounding against Coulman Island. By late July, this blockage had effectively cut off the penguins’ migration route.
+

This isn’t just an electric violin; it’s a computer disguised as fine lutherie. Built with a curly maple body and four embedded Bela Mini computers (one per string), it uses infrared pickups to analyze every nuance of a bow stroke. The result is a seamless fusion of acoustic warmth and digital synthesis that responds instantly to the player’s touch.
-The obstruction occurred at a critical phase in the breeding cycle. Under normal conditions, females depart to forage at sea after laying their eggs in June, leaving males to incubate the clutch. The survival of the hatchlings relies on the mothers returning 70 to 80 days later to deliver the first meal.
+This year, however, returning females were intercepted by an ice mass roughly the size of 5,000 soccer fields. The iceberg formed a deceptive trap. while its seaward face offered a gentle slope that allowed the penguins to ascend with ease, the side facing the inland colony dropped off into a sheer vertical cliff. Upon reaching the crest, the mothers found themselves stranded, unable to descend to the breeding ground below.
+
“The iceberg’s seaward approach has a gentle gradient, making it accessible, but the edge facing the breeding ground forms a precipitous cliff,” Dr. Kim explained. “Mothers following their usual route over the sea ice were suddenly confronted by this insurmountable barrier.”
+A towering robotic sculpture that mounts four green violins around a bass drum. Instead of human hands, a motorized spinning disk acts as an “infinite bow,” while servos tilt the instruments to switch strings. It blends 3D-printed tech with antique automata, generating everything from stuttering mechanical rhythms to endless, meditative drones.
+
Drone imagery captured a scene of desperate frustration. Hundreds of adult penguins were massed at the base of the ice cliff, pacing nervously as the topography barred them from the colony. The surrounding ice was heavily scarred with guano, evidence that the birds had been stranded there for a prolonged period.
+Standing nearly seven feet tall, this “bass-veena” hybrid fuses a double bass with Indian classical design. Its hollow neck acts as a sound conduit, channeling audio to a second resonator right by the player’s ear. Engineered with curved brass frets, it allows massive, microtonal string bends previously impossible on a bass.
-For the males waiting above, the blockade was catastrophic. Having already fasted for more than 70 days to incubate their young, they were pushed to their physiological breaking point.
+”Males must survive to ensure future breeding opportunities,” Dr. Kim explains, outlining the brutal calculus of nature. ”It is highly likely they were eventually compelled to abandon the chicks and retreat to the ocean, unable to endure the starvation any longer.”
+
Researchers estimate that the surviving 30 percent of chicks were fed by mothers who managed to find alternative routes around the blockage. ”If the iceberg clears before the next breeding season, there is potential for recovery,” Dr. Kim said. ”But if the blockage persists, we may see long-term impacts, including the forced relocation of the entire colony.”
+A “winged” hybrid that evolves the kalimba into a semi-autonomous digital instrument. Its dual resonance boxes are connected by an articulated hub, mapping the opening and closing motion of the “wings” to complex sound processing. Using real-time spectral analysis inspired by George Lewis’s Voyager, the instrument generates its own musical responses to create a non-hierarchical duet between the performer’s physical gestures and the machine’s digital brain.
-

The Ross Sea serves as a vital sanctuary for Emperor Penguins. Whereas areas like the Antarctic Peninsula have struggled with early ice breakup and chick fatalities, the Ross Sea has remained comparatively stable. Sheltered deep within the continent, it benefits from robust sea ice and protection from rapid temperature shifts.
+Built around a bicycle wheel rim, this 24-string instrument looks like an alien artifact. It spins on a cymbal stand, allowing musicians to strike, pluck, or bow its “spokes” to create sounds ranging from a harp to a steel drum. It’s an upcycled, industrial sound machine that turns scrap metal into a chromatic orchestra.
-However, the arrival of this iceberg introduces a volatile new threat to their survival. The incident was an anomaly. After calving from the Nansen Ice Shelf, the iceberg collided with drift ice near Coulman Island, a crash that diverted its path and sealed off the colony’s entrance. KOPRI researchers warn that this is not an isolated event but a harbinger of things to come. As global warming accelerates, frequent iceberg calving increases the risk that such blockades will occur again.
+Icebergs of similar magnitude are still frequently observed in the region, traveling along drift paths that intersect with other Emperor Penguin habitats. While icebergs from the Nansen Ice Shelf typically follow established routes, analysis suggests this specific iceberg veered off course after striking underwater terrain or other ice masses—a deviation that led it straight to the colony.
+

Shaped like a puzzle piece, this open-source synth prioritizes accessibility without sacrificing power. It uses pressure sensors rather than touch, allowing it to be played with any object or assistive device. Users change sounds by swiping RFID-tagged fabric swatches, helping players with disabilities build auditory-tactile connections while creating complex, polyphonic loops.
-The team also noted that 14km iceberg also skirted Cape Washington, another major breeding ground. Researchers warn that if a future iceberg were to collide with this site and block its migration corridor, it could trigger another mass mortality event.
+Dr. Jin-ku Park, who analyzed the satellite data, expressed concern about the wider implications. “The trajectories of icebergs calving from the Nansen Ice Shelf frequently traverse other major habitats,” he said. “This indicates that the disintegration of ice shelves poses a latent but potent threat to Emperor Penguins and other Antarctic wildlife.”
+
KOPRI plans to submit these findings to international bodies next year, including the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). Although discussions to designate the Emperor Penguin as a ’Specially Protected Species(SPS)’ are ongoing, progress has been blocked by objections.
+A cyborg woodwind that merges a real vibrating reed with a digital brain. Instead of tone holes, electromagnets manipulate the reed to change pitch, allowing for impossible notes and infinite bass. It combines the raw, acoustic feel of a sax with joystick-controlled looping and digital manipulation.
-“Objective, scientific evidence is a prerequisite for designating a species as protected,” Dr. Kim emphasized. “The Coulman Island case will serve as critical empirical proof of just how specific and lethal the threats posed by climate change are to the Emperor Penguin.”
+Since 2017, KOPRI has monitored the Antarctic ecosystem as part of a Ministry of Oceans and Fisheries initiative focused on the Ross Sea Marine Protected Area. The institute aims to use the data from this incident to refine its remote sensing techniques and accelerate Antarctic conservation efforts.
+
“This catastrophe underscores the unpredictable dangers climate change poses to the Antarctic ecosystem” said Dr. Hyoung-chul Shin, President of KOPRI “We plan to intensify satellite monitoring and field surveys during the next breeding season and continue investigating the impact of climate change on this fragile environment.”
+Imagine a Hammond organ played with “The Force.” You wear magnetic pickups on your fingertips and hover them over spinning tonewheels to generate sound. This purely analog instrument turns proximity into volume and pitch, letting you sculpt electricity directly with the wave of a hand—no physical contact required.
-The story was produced in partnership with our colleagues at Popular Science Korea.
-The post A huge iceberg becomes a deadly trap for penguins appeared first on Popular Science.
-]]>The post Backcountry.com’s 3-day clearance flash sale dropped jackets, hoodies, fleeces, and more up to 70% off appeared first on Popular Science.
-]]>The 28th annual Guthman Musical Instrument Competition will take place March 13-14 at the Georgia Institute of Technology in Atlanta.
+The post The 10 weirdest and wildest musical instruments of 2026 appeared first on Popular Science.
+]]>The post Why does chocolate turn white? It’s not mold. appeared first on Popular Science.
+]]>If you’re looking for new shades, go check out these Backcountry sunglasses deals up to 70 percent off.
+Hartel studies foods like chocolate and ice cream, and he gets questions like this all the time. So what was going on with those chocolate chips?
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+Chocolate may look uniform and solid to the naked eye, but if you looked at it under a microscope you would see that it’s actually a mixture of cocoa particles, sugar crystals, and (in milk chocolate) milk powder, all held together by cocoa butter.
-Cotopaxi
-Sometimes, some of those ingredients move around—and that’s what makes the chocolate turn white or “bloom.”
-This is the kind of cold-weather staple that actually earns its closet space. A hooded puffer works for everything from winter commutes to shoulder-season hikes, and this discount is big enough to justify grabbing it now.
+There are two main kinds of chocolate bloom: sugar bloom and fat bloom.
+When you take a cold chocolate bar out of the fridge and leave it unwrapped on the counter, water from the surrounding warmer air can condense on the cold chocolate’s surface (just like condensation on a cold window pane). That moisture dissolves some of the sugar on the surface of the chocolate. When the water evaporates, the sugar is left behind in the form of tiny crystals, creating a white, powdery coating.
- -This is called sugar bloom. The chocolate is still good to eat, just not very pretty.
-The higher coverage helps keep cold air and powder where it belongs, and “GORE-TEX 3L” in the name is a solid signal this is meant for nasty weather days, not just fair-weather laps.
+To avoid it, Hartel says “chocolate should be wrapped well for storage in the refrigerator or freezer, then allowed to warm to room temperature before unwrapping.” This prevents condensation from forming on the chocolate.
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This one is easy to justify at this price. Chuck it in a daypack, keep it in the car, or pack it for travel so a surprise downpour doesn’t turn into a soggy, miserable afternoon.
+Chocolate can also turn white even when it’s not stored in the fridge. “Think of leaving a chocolate bar in the car on a hot summer day,” says Hartel. “After it cools, it often develops a white, hazy coating.” (Of course, you might not have noticed because you ate the chocolate too fast. That’s totally normal.)
-This white, hazy coating is called fat bloom, and it happens when cocoa butter inside the chocolate slowly changes its shape.
-Cocoa butter is made of fat molecules that can arrange themselves in six different crystal shapes (which chemists call ‘polymorphs’). Chocolate makers want one special form—called Form V—because it gives chocolate that special glossy look and melt-on-your-tongue texture. They create this form by carefully heating and cooling the chocolate in a process called tempering.
-But over time, especially in warm places (like a sunny windowsill or a hot car), Form V can change into a more stable form called Form VI. These larger crystals scatter light instead of reflecting it, making the chocolate look dull and white.
-Hartel explains that fat bloom “can form on chocolate at almost any temperature, although it is generally slowed as temperature goes down.” That’s why chocolate brands recommend storing chocolate in a cool environment, ideally around 57 to 61 degrees Fahrenheit (the equivalent of 14 to 16 degrees Celsius).
-Some chocolates are more susceptible to fat bloom than others. In 2008, scientists from Canada and Sweden looked at chocolate under a microscope. They discovered that chocolate with a microscopically rough surface was more likely to form fat bloom. All those tiny cracks create more places for fat crystals to grow.
-Filled chocolates—like ones with peanut butter centers—are even more likely to bloom. The liquid fat from the filling can move into the chocolate shell, speeding up the process and making the chocolate soft and messy.
-So what about that baker’s cookies?
-Hartel studied the problem and found that the cookie dough didn’t have enough fat. During baking, fat from the dough normally moves into the chocolate chips, changing how the cocoa butter cools and helping prevent bloom.
-“Think about the texture of chips that have been baked in the cookie, it’s soft and gooey, not at all hard like the original chip that was mixed in the dough,” says Hartel. “That’s the result of fat migration, whether it’s butter or shortening.” Without enough fat, the chips cooled the “wrong” way and bloomed.
-Once the baker added more fat to her cookie dough recipe, the problem disappeared. “It was so successful she sent me an enormous basket of goodies for Christmas that year,” Hartel recalls. “Another case of being paid in food or candy as a consultant.”
-Chocolate bloom is caused by sugar or fat molecules moving around, and usually it’s just a cosmetic issue.
-If it’s only on the surface, the chocolate will taste fine—“there is no effect other than the visual turn-off,” says Hartel.
-But if the chocolate is very old and the bloom has spread deep inside, the chocolate will be cracked, dry and crusty, possibly with a waxy aftertaste, says Hartel.
-He confesses to having a chocolate Santa that’s about 30 years old. “Not for eating,” he says.
-In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
+The post Why does chocolate turn white? It’s not mold. appeared first on Popular Science.
+]]>The post Meze Audio builds on its success, literally, with new STRADA headphones appeared first on Popular Science.
+]]>STRADA is built around a 50mm dynamic driver platform first introduced in the 109 PRO, newly retuned for closed-back control. The carbon fiber-reinforced cellulose composite dome promises to keep treble detail clear with minimal distortion, while a semicrystalline polymer torus, coated with beryllium via Physical Vapor Deposition, adds stiffness and snap. Precision-cut 45.5° grooves refine control, and a copper-zinc alloy stabilizer absorbs micro-vibrations to reduce distortion. How that may translate to tone: punchy, defined lows, a neutral midband that lets guitars and voices keep their true color, and highs that sketch texture and space without turning tracks into a fatigue test.
-All that is mounted within exotic Macassar ebony with golden-brown striations (familiar from the LIRIC II), a hand-painted deep-green magnesium chassis with a subtle metallic shimmer, and magnetically mounted pads that snap on with a reassuring little ‘yep.’ At 330 grams, with a soft cross-pattern headband that spreads pressure and lets air flow, it’s made for long sessions as bassline bloom and vocals murmur intimately. Specs stay sensible (5 Hz–30 kHz, 40 Ω, 111 dB, THD <0.1%, dual 3.5 mm jacks), and the whole thing is fully serviceable. Available from today, Jan. 21, for $/€799 worldwide.
-


Need to turn a corner into a STRADA listening station? The recently revealed iFi iDSD Phantom is a $4,499 all-in-one DAC/network streamer/amp that’s hilariously overhill in the best way. This compact stack features quad Burr-Brown conversion, a streaming engine up to 768kHz/DSD512, DSD2048 and K2HD “remastering,” USB-B 3.0, coaxial, AES/EBU, TOSLINK and Ethernet inputs, and enough Class A power (7,747mW peak) to make even the most stubborn headphones behave. No matter what you need to stream or convert, the iDSD Phantom can feed it to 3.5mm, 4.4mm balanced, 4-pin XLR, dual 3-pin XLR, and both positive and inverted phase 6.3mm outputs. And then there’s iFi’s signature ability to season to taste, with J-FET solid state snap or GE5670 tube glow, XBass Pro, XSpace Pro, and various filters. Plus, iFi already knows what Meze’s warmth wants. The ZEN CAN Signature MZ99 was tuned around the 99 Classics’ voicing, so synergy isn’t guesswork.
-We’re looking forward to auditioning one, if not both, of these for future coverage.
+The post Meze Audio builds on its success, literally, with new STRADA headphones appeared first on Popular Science.
+]]>The post Jabra transforms headsets into headphones with new Evolve3 75 & 85 appeared first on Popular Science.
+]]>
-So, the Evolve3 85 (over-the-ear, above) and Evolve3 75 (on-the-ear, bottom of the page) headphones pack easily. What’s equally impressive is what Jabra has packed inside them. They ditch the usual boom arm for Jabra ClearVoice—a deep neural network model paired with multi-mic algorithms that claims to learn what “you” sounds like in a crowded room, so there’s no more shouting in a corner. (Trained on 60+ million sentences by parent company GN’s hearing division, it promises 96% word capture; 99% in an open office.) Adaptive ANC responds in real time to both your environment and how the headset seals, and it keeps working during calls, not only in the quiet moments between them. Spatial Sound places voices with a little more front-to-back realism, so long meetings feel less like they’re happening inside your head until you throw it back in frustration.
-Despite the understated profile, these headphones pack stamina: up to 25 hours of calls and 120 hours of music on Evolve3 85 with ANC/busylight off (22/110 on Evolve3 75), plus a 10-minute fast charge for up to 10 more hours, and wireless charging for desk-drop life. One-touch voice access is integrated for GenAI prompts and high-accuracy transcription. Bluetooth 5.4 with LC3 codec is made for the playlists that fuel productivity. For IT teams, there’s secure Bluetooth Low Energy with a pre-paired adapter included, UC-certified virtual meeting platform variants, Bluetooth Native for direct device connections, and centralized fleet control through Jabra Plus Management; users get personal tweaks through the Jabra Plus app (with a desktop version planned for later in 2026). Replaceable batteries and parts, recycled/bio-circular materials, and TCO generation 10 certification round out the “one device you only buy once” mindset.
-Who says hybrid work has to be messy? Evolve3 85 and 75 in Black arrive March 1, 2026, for $649 and $463 (list price at launch), with Warm Gray landing in April.
-
-The post Jabra transforms headsets into headphones with new Evolve3 75 & 85 appeared first on Popular Science.
+]]>The post The swinging sex lives of Alaska’s beluga whales appeared first on Popular Science.
+]]>One small population of beluga whales living in southwest Alaska’s Bristol Bay appears to have a surprising strategy. Over several years, both male and female belugas mate with multiple partners. This method may reduce the risk of inbreeding in the group of just 2,000 whales and help maintain genetic diversity. The findings are detailed in a study published today in the journal Frontiers in Marine Science.
-Over 13 years, scientists collected genetic samples from 623 beluga whales in Bristol Bay, while simultaneously observing their ages and social groupings. The largely isolated population has little or no mixing with other populations elsewhere in the Arctic and subarctic. This degree of isolation gives biologists a unique opportunity to study them as a distinct population.
-The team wanted to determine which mating style this population of beluga engaged in—polygynous, polyandrous, or polygynandrous. In polygynous mating, one male mates with multiple females, as seen in many bird species. In polyandrous animals, one female mates with multiple males, similar to what female mice do. Polygynandrous mating is when both males and females have multiple mates.
-Since belugas live 30 to 50 years on average—with some living as long as 80 years—the team focused on what happens during one mating season instead of over a whole lifetime.
-The team found that this beluga whale population engages in a polygynandrous system, where both males and females mate with multiple partners over several years. Instead of reproductive success being dominated by a few individuals, it is more spread out. This mate switching also results in many half-sibling offspring and few full-sibling offspring and could reduce the risk of inbreeding and help maintain genetic diversity in the small population.
-
According to the team, these findings upend scientists’ earlier notions about beluga mating. Since males are much larger than females and are not frequently seen with mothers and calves, researchers thought that the whales were highly polygynous. In these settings, males spend significantly more time competing for mates and only a few dominant males end up fathering most of the calves.
-“Our findings tell a very different story,” Greg O’Corry-Crowe, a study co-author and biologist at Florida Atlantic University, said in a statement. “In the short term, males are only moderately polygynous. One explanation we think lies in their incredible longevity—belugas can live perhaps 100 years or more. Rather than competing intensely in a single season, males appear to play the long game, spreading their reproductive efforts over many years. It appears to be a ‘take your time, there’s plenty of fish in the sea’ strategy.”
-The findings also indicate that female belugas have their own equally fascinating reproductive strategy. Instead of sticking with one partner, they frequently switch mates from one breeding season to the next. This could be a form of risk management, allowing the females to avoid pairing with low-quality males and increasing the likelihood of creating healthy and genetically diverse offspring.
-“It’s a striking reminder that female choice can be just as influential in shaping reproductive success as the often-highlighted battles of male-male competition,” O’Corry-Crowe added. “Such strategies highlight the subtle, yet powerful ways in which females exert control over the next generation, shaping the evolutionary trajectory of the species.”
-
According to the team, these findings underscore how important understanding mating systems is for conservation methods, particularly in small or isolated populations like the Bristol Bay Belugas. In polygynandrous systems like these, mate choice, partner switching, and shared reproductive opportunities is what spreads genes more evenly. This maintains genetic diversity, limits inbreeding, and offsets the devastating impacts a small population size can have.
-“Understanding these dynamics matters for conservation. If only a few males father most calves, the effective population size becomes much smaller than the number of whales actually present,” said O’Corry-Crowe.
-The Indigenous communities of Bristol Bay were key in getting this study together. They helped study these elusive whales, melding scientific research with Indigenous knowledge to protect the belugas in a changing Arctic and subarctic.
-“We cannot afford to be complacent. Small populations still face the dangers of genetic erosion,” concluded O’Corry-Crowe. “But we can be optimistic that beluga whale mating strategies provide evidence of nature’s resilience and offers hope for those working to save and recover small populations of any species.”
+The post The swinging sex lives of Alaska’s beluga whales appeared first on Popular Science.
+]]>The post 13 gorgeous black-and-white images of the animal kingdom appeared first on Popular Science.
+]]>The 2025 Nature Photography Contest celebrates the “enduring power of black and white photography” and its ability “to deepen our connection with the natural world,” according to a press release. This year’s contest welcomed submissions from 82 countries and the winners include stunning and intimate photographs of wildlife, all in black and white.
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Photographer Lidija Novković earned top honors in the Professional category for a powerful image of a horse (seen below). Janet Gustin won the Non-Professional category for a playful photo of a fox kit nipping at its mother. Visit Exposure One for a full gallery of the honorees. (Click to expand images to full screen.)
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The post 13 gorgeous black-and-white images of the animal kingdom appeared first on Popular Science.
+]]>However, that doesn’t mean it’s impossible to spot AI pictures: There are still signs to watch out for, checks you can make, and tools you can use to distinguish the genuine from the synthetic. As is the case with AI-generated video, you don’t have to give up just yet.
-You may not be able to definitively determine this one way or the other each and every time, but in a lot of cases you can make a pretty educated guess. And in an age of disinformation and AI slop, being able to make the distinction is a skill that’s worth honing.
-Some chatbots are now putting hidden watermarks into their image outputs, identifying them as AI-generated. While these watermarks aren’t difficult to remove—a simple screenshot of the image will do it—they’re a good place to start when it comes to trying to tell if an image has been made by AI.
-Anything produced by Google Gemini, for example, will have what’s called a SynthID watermark embedded somewhere in it. To test the authenticity of an image, you can upload a picture to Gemini on the web, and simply ask “was this image made by AI?”. Gemini will be able to find the SynthID watermark, if it’s there.
-
There’s another standard way of labeling AI images, which is developed by the Coalition for Content Provenance and Authenticity (C2PA): the labeling itself is called C2PA, and it’s supported by companies including OpenAI, Adobe, and Google. If you head to a C2PA checking website such as Content Credentials, you can upload an image and get it analyzed for evidence of AI creation.
-If an image passes these checks, it’s not a guarantee that it’s genuine—but it’s worth running through them anyway, because they will catch some AI generations, and even tell you which model was used to make the picture in many cases. If you’re still not sure, you can move on to looking at the context around an image.
-No image is an island: It will have come from somewhere, and been shared by someone. You can rely on respected publications (such as the one you’re reading) to honestly label images that have been generated by AI, and properly attribute other images that haven’t. You’ll know exactly what you’re looking at.
-On the wilds of social media of course, the lines are much more blurred. Here, content is posted and reposted without context or attribution, and it’s much more likely that something on Facebook or X has been faked. That’s especially true if the picture is designed to attract engagement, through controversy or cuteness or any of the other emotional levers that get pulled.
-
Another trick you can try, especially when it comes to images associated with news stories, is to look for complementary pictures taken from different angles. Are the pictures consistent? Do the details match up from different viewpoints and across different time periods? For illustrations and graphic art, you can again check to see if any credits have been applied: See if what you’re looking at has a link back to the artist and their portfolio.
-A reverse image search can sometimes reveal where an image has come from, and help you find other copies on the web: TinEye is perhaps the best resource for this. If there are no other matches, that points towards AI—especially if it’s been posted without context on social media, and especially via an account trying to monetize or sell something.
-We know AI bots aren’t actually taking any photographs or sketching any pictures: They’re producing approximations of images based on prompts and their training data (which is vast amounts of creative work done by people). That approach can lead to a certain generic sheen that gives away a lot of AI-generated content.
-Anime characters look like generic anime characters, trees look like generic trees, and city streets look like generic city streets. There’s even a recognizable ChatGPT font that the AI bot reverts to whenever you ask for some text without any specific style—like an average of all the fonts ever created—and you’ll recognize it if you try and generate a few pictures with text in ChatGPT.
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Physics is still a problem, though the errors aren’t as egregious as they used to be. Try rendering a view of a castle or a vast office block interior in an AI bot and you’ll notice turrets appear in pointless places, staircases lead to nowhere, and elevator doors don’t actually lead to elevators. There are often logical inconsistencies, because AI doesn’t really understand buildings or interior space, just how to create a decent simulation of them in visual form.
-We may be past the point of six fingers on hands, but faces and limbs regularly look squished and unnatural, and details are often fuzzy and blurred. Sometimes these problems will be easier to spot than others, but with a little practice and a few test renders of your own, you should get better at being able to identify them.
+The post How to really spot AI-generated images, with Google’s help appeared first on Popular Science.
+]]>The fleece lining helps hold warmth against your core and legs, which is exactly what you want when the wind is doing its best to blast every bit of warmth away from your body.
-You can wear this under pretty much any outfit. The fleece lining adds noticeable warmth without forcing you into bulky outerwear, which matters if you still need to move around (walking, commuting, or doing anything that requires bending your knees).
-If you’re shopping by price first, this is another solid pick from the batch, and it’s the easiest way to make standing outside less miserable.
-The post Amazon is blowing out Cuddl Duds base layers and and thermal underwear just in time for frigid temperatures appeared first on Popular Science.
+]]>The post Scottish distillery wants to bottle whisky in aluminum, not glass appeared first on Popular Science.
+]]>Any serious distillery uses glass bottles for the good stuff. The reason is as much about aesthetics as it is about chemistry. From a psychological standpoint, the hefty, translucent glass implies the painstaking artisanal craft required to produce an elevated batch of whisky (the “whiskey” spelling is generally only used by Irish and American distillers). The material also is guaranteed to not interact with a whisky’s delicate flavor profile, that can only be achieved after years or even decades of aging.
-There are serious sustainability problems with the industry’s reliance on glass. Most glass manufacturing still requires vast amounts of energy at a major environmental cost. What’s more, all those heavy whisky bottles then ramp up pollution and other problems as they’re transported around the world. Once a bottle is finally empty, recycling is harder than you might think. Manufacturers have long offered popular drinks—both with and without alcohol—in much more sustainable aluminum containers. So why haven’t distilleries made the leap?
-Sterling Distillery recently approached chemical scientists at Scotland’s Heriot-Watt University to provide some answers. Researchers spent months analyzing how aluminum can affect the liquor’s chemical composition and flavor profile. Using nuclear magnetic resonance spectroscopy, the team first measured how alcohol and metal atoms interacted when whisky is stored in aluminum. While they found that contact with the metal often reduced or eliminated important compounds like gallic acid, volunteer taste testers didn’t differentiate between whisky housed in glass and aluminum bottles.
-From there, the team used plasma mass spectrometry to measure the actual metal levels in the whisky. The small samples used for the taste test were comparatively safe, but they soon determined a potentially major branding issue: no one wants metal poisoning from their whisky dram.
-“We know that certain organic acids naturally present in matured whisky can react with aluminum, which can lead to aluminum entering the liquid,” Dave Ellis, a chemist at Heriot-Watt University, said in a statement. “If we stir samples with aluminum metal, the levels were well above what would be considered acceptable for drinking water.”
-The reason this isn’t an issue in other aluminum containers like soup cans is due to their linings. For decades, soup cans and other products featured a transparent coating as much as 10 micrometers thick made from various epoxy resins and Bisphenol A (BPA) plastics. Because BPA plastic has plenty of its own health and environmental issues, industries have slowly switched to alternative liners—but it remains to be seen if any of them can hold up to a potent whisky.
-“Any innovation has to respect the craft of whisky making while meeting the highest standards of safety,” added Annie Hill, a researcher at Heriot-Watt’s International Center for Brewing and Distilling. “In this case, the liner within the can wasn’t sufficient to prevent aluminum from passing into the spirit.
-The team added that aluminum whisky bottles aren’t impossible in the future. However, distillers and scientists still need to find a lining that could withstand years—and sometimes decades—on a whisky aficionado’s shelf. Sterling Distillery wants to have aluminum bottling ready for the debut of its first matured whisky in 2027, so it still has some time to locate a liner. But if there’s one thing whisky teaches you, it’s that you can’t rush a good thing.
+The post Scottish distillery wants to bottle whisky in aluminum, not glass appeared first on Popular Science.
+]]>The post Dinosaur bones found underneath parking lot in Dinosaur, Colorado appeared first on Popular Science.
+]]>Located on the Colorado-Utah border at the meeting of the Green and Yampa rivers, Dinosaur National Monument was established as a federally protected site in 1915. Its nearly 330 square miles of land encompasses over 800 separate paleontological sites dating back 150 million years to the Jurassic era. The Carnegie Museum oversaw the very first excavations from 1909 to 1922, followed by projects from the Smithsonian Museum and the University of Utah in 1923 and 1924.
-The region is largely arid desert landscape today. However, over 150 million years ago, a vast river bed regularly received the remains of dinosaurs as they floated downstream. These bones slowly fossilized in the sandstone and conglomerate rock, resulting in one of the continent’s best preserved and diverse collections of ancient megafauna. Today, the nearby national monument offers visitors a glimpse at the range of species that once roamed North America such as Allosaurus, Deinonychus, and Stegosaurus.
-After identifying the new Diplodocus bones in a parking lot, paleontologists worked with park staff, the Utah Conservation Corps, and local volunteers between September and October 2025 to remove around 3,000 pounds of rocks and fossils. The finds were then moved to the Natural History State Park Museum in Vernal, Utah, where they can be viewed in the institution’s public fossil preparation lab. Additional examples are already on display at the Dinosaur National Monument’s Quarry Exhibit Hall. Also known as the Wall of Bones, the exhibit hall is situated over an intact section of the original Carnegie quarry dig showcasing an estimated 1,500 dinosaur fossils still embedded in rock.
-Researchers are now continuing to clean and examine the parking lot discoveries that broke the century-long dry spell for Dinosaur, Colorado. That said, the town wasn’t always so aptly named. Originally known as Baxter Springs, the location was eventually retitled Artesia during an oil rush in the 1940s oil boom. In 1966, the small hub finally received its current Dinosaur designation.
+The post Dinosaur bones found underneath parking lot in Dinosaur, Colorado appeared first on Popular Science.
+]]>The post This deadly dog ‘spaghetti’ has ancient origins appeared first on Popular Science.
+]]>New research into the widespread canine parasite suggests that heartworm has a deeper and more complex history than scientists previously believed and some may have originated in Australian dingoes. The findings are detailed in a study published today in the journal Communications Biology.
-Heartworm disease is caused by the parasite Dirofilaria immitis. It is spread to dogs by mosquitoes and can be fatal. Adult worms live in the blood vessels of the heart and lungs and can grow up to 11.8 inches long (30 centimeters). Dog owners and veterinarians often report that worms can look like a strand of spaghetti in the heart.
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In the new study, an international team of researchers looked at over 100 heartworm genomes collected from pet dogs and wild canids from around the world. They used whole-genome sequencing to compare heartworms found in different regions, which helped them reconstruct population histories and track how the parasites diverged over time. They then pinpointed distinct regional heartworm populations that were shaped by the how and when ancient canids moved across the earth during ice ages.
-They found that ancient canid hosts such as wolves and dingoes played a pivotal role in shaping how heartworms have been distributed across the globe for thousands of years.
-“For decades, we assumed heartworms were spread mainly through recent human activity,” Dr. Rosemonde Power, a study co-author and University of Stockholm paleogeneticist, said in a statement. “What we’re seeing instead is evidence of deep co-evolution between heartworms and their canine hosts, even before humans were part of the picture.”
-One of the study’s most interesting findings relates to Australia. Genetic signatures in Australian heartworms suggest that they might share ancestry with parasites found in Asia. According to the team, this raises the possibility that heartworm may have arrived in Australia with the continent’s first dingoes. The wild canids are believed to have migrated from Asia thousands of years ago.
-However, the team cautions that the evidence is not conclusive. Heartown also may have been introduced to Australia more recently, following European colonization.
-“While our data suggest an ancient link between Australian and Asian heartworms, the sample size means we need to be careful about drawing firm conclusions,” said study co-author and University of Sydney veterinarian Jan Slapeta. “What we can say with confidence is that heartworm evolution is far older and more complex than a simple story of parasites hitchhiking with modern dogs.”
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Despite being separated by thousands of years, understanding how these ancient parasites evolved does have implications for animals living today. Like with antibiotics, resistance to common heartworm treatments and prevention methods is growing.
-“Understanding where heartworms come from and how different populations are related helps us respond more effectively to disease and drug resistance,” added Slapeta. “Heartworms are not the same everywhere, and local history matters.”
-In future studies, more sampling, particularly from regions that are more underrepresented regions could help explain more about the parasite, including that mystery of where Australia’s heartworm first originated.
-The post This deadly dog ‘spaghetti’ has ancient origins appeared first on Popular Science.
+]]>The post A robot bat sheds new light on how they hunt in darkness appeared first on Popular Science.
+]]>The study was led in part by bat scientist and Smithsonian Tropical Research Institute research associate Inga Geipel. In fact, the robot’s performance largely confirmed Geipel’s hypothesis about real bats. While she expected these results, she still found them gratifying, not so much for herself, but for her furry subjects.
-“I’m always Team Bat,” Geipel tells Popular Science. “They always trick me, they always outsmart me.”
-Bats use echolocation to find their way and hunt for prey. The winged mammals emit rapid clicking sounds from their mouths and listen for the echoes as those sounds bounce off nearby objects, which could include potential meals. By interpreting the timing and strength of those returning echoes, bats can build a detailed acoustic picture of their surroundings.
-That sonar-based perception process is somewhat akin to the way autonomous vehicles use LiDAR sensors to create a mini map of the world around them. But while self-driving cars rely on dozens of cameras and sensors working in concert, bats accomplish the same task intuitively, with just two ears and a mouth.
-The post Backcountry.com’s 3-day clearance flash sale dropped jackets, hoodies, fleeces, and more up to 70% off appeared first on Popular Science.
-]]>The post Backcountry.com is blowing out dozens of sunglasses for clearance prices during this flash sale appeared first on Popular Science.
-]]>Though scientists have long known that bats used echolocation, it was still unclear exactly how they utilize it in the real world, especially in densely packed jungles and rainforests where there are virtually unlimited empty leaves vying for a hungry bat’s attention.
-Once you’ve got a new pair of shades, go check out more deals on outdoor gear for up to 70 percent off at Backcountry.
+
To fly into a bat’s world, the team built on Geipel’s nearly 20 years of research. She says her fascination began when she glimpsed one of the flying mammals deftly fluttering through a lightless night sky. Also a lifelong admirer of music and sound, Geipel was captivated by the notion that these creatures could use those senses to “see” in ways humans can’t comprehend. She hoped her future work would shed some light on that intellectual darkness.
-“Seeing the world through sound is a sensory system that is alien to us,” Geipel said. “I find it highly fascinating that bats can fly in total darkness.”
- -The new robot bat study is something of a spiritual “sequel” to Geipel’s PhD research on bat foraging. That earlier work showed that big-eared bats (Micronycteris microtis) initially approach leaves at a specific angle so that their sonar clicks reflect off smooth forest leaves like an echolocation mirror. Leaves with objects on them, such as insects, scatter the sonar, resulting in the bat receiving a stronger return pulse. From the bat’s perspective, stronger echoes can mean a tasty lunch.
-If you actually do “move fast, sweat a lot” activities, these are built for it. The magnetic lens swap system makes it realistic to switch lenses without smudging everything up, and the shape is more performance-first than fashion-forward—which is exactly what you want on long rides and runs.
+“Behavioral experiments had already suggested how these bats might solve the problem of finding prey-occupied leaves, but we wanted to know whether that explanation was actually sufficient to make the behavior work,” paper co-author and University of Cincinnati associate professor of biology, mechanical engineering, and electrical engineering Dieter Vanderelst said in a statement.
-If you want a pair you can beat up a little, these are a good “throw them on and go” option: polarized lenses to cut glare off snow/water/traffic, a grippy fit for hikes and bike days, and an Rx-ready frame if you’re tired of choosing between sunglasses and seeing clearly.
+That’s where the idea for the robot came into play. The robo-bat was designed to function as a mechanical stand-in for the real thing, allowing researchers to analyze how the winged mammals approach leaves with and without prey. To do that, the team brought together experts from both biology and engineering in pursuit of a common goal—an interdisciplinary collaboration that isn’t all that common. Geipel says the team drew on the combined knowledge of biologists like herself and engineers capable of modeling the physical world through robotics.
-Zeal Manitou Sunglasses – Men’s — $103.05 (was $229.00)
Photochromic lenses are the move for “sun in the parking lot, clouds on the trail, sun again at the summit” days. These automatically lighten/darken as conditions change, and they’re polarized for glare control, so you’re not constantly swapping eyewear or squinting through reflections.
“By building the bat’s hypothesized foraging strategy into a robot and testing it in the physical world, we could ask whether a simple, elegant solution can succeed under complex acoustic conditions, ” Vanderelst added.
-RAEN optics Squire Polarized Sunglasses $61.50 (was $205.00). A rare “nice sunglasses” deal. These lean classic and wearable, so they work as everyday shades, not just trail gear. If you want something that looks good with a puffy jacket and also doesn’t feel out of place at brunch, this is the move.
+Electric Crasher 49 Polarized Sunglasses $124.98 (was $249.95). This is the kind of 50%-off deal that makes upgrading feel justified. You’re getting polarized lenses and a sturdier, lifestyle-friendly frame that’s more “all day” than “one specific sport.”
+When designing the robot, the team wanted a system that closely modeled a bat’s natural foraging technique without adding unnecessary complexity. The resulting bat robot” prioritizes function over form. It consists of a robotic arm with a built-in sonar emitter meant to mimic the chirps a bat produces. At the end of the arm are binaural microphones that serve as the robot bat’s “ears.”
-The entire apparatus is mounted on a 9.8-foot -long (or three meters) linear track, which functions as a highly condensed flight path. The track is so condensed that it fits in what looks like a small office.
-
The robot performs the tasks necessary to collect crucial research data, but it certainly wouldn’t fool anyone into thinking it was a true doppelganger of its biological inspiration. Personally, Geipel says she would have favored adding googly eyes, but they ultimately passed on the idea for the sake of professionalism.
-The “leaves” in this case were 3D-printed cardboard. Some of them had a roughly 3.5-inch-long (nine-centimeters) 3D-printed cardboard dragonfly pinned to their centers to represent potential prey. During the experiment, the robot moved along the track, emitting successive sonar pulses with about a 0.5-second delay between them. The resulting signal data formed what the researchers call an “echo envelope,” which was then wirelessly sent back to the computer controlling the robot arm.
-Robotic arm equipped with a sonar head searching and finding an artificial dragonfly on artificial leaves. The laser indicates where the SONAR head is looking. CREDIT: Dieter Vanderelst, University of Cincinnati
-In total, the team conducted more than 45 trials of the robo-bat flying past various leaf configurations, both with and without prey. The system performed remarkably well. The robot successfully detected leaves with a pinned dragonfly 98 percent of the time and falsely identified prey on empty leaves only 18 percent of the time.
-Critically, the bat robot achieved these results without first assessing the orientation or angle of the leaves, one of the primary questions the researchers aimed to answer. The bat appeared to follow a simple framework: track strong, stable echoes above a certain threshold and ignore those that don’t meet it.
-While this work specially looks at big-eared bats (Micronycteris microtis), the researchers are hopeful they could apply it to other species.
-Bats have inspired other robots in past studies. In 2017, engineers at Tel Aviv University developed Robat the Robot, a first-of-its-kind autonomous, wheeled device that navigated and explored its surroundings solely using echolocation. Although it couldn’t fly, Robat was equipped with an ultrasonic speaker that emitted bat-like chirps every 30 seconds. It processed the returning echoes through an onboard machine-learning model, which allowed it to identify and avoid obstacles in real time.
-Before that, researchers from Caltech and the University of Illinois at Urbana–Champaign designed Bat Bot, a bat-inspired robot with soft, articulating wings that weighed just 3.2 ounces (93 grams). The major innovation there was the creation of synthetic wings capable of changing shape as they flap, much like those of a real bat. The team achieved this by developing a custom-made, ultra-thin silicone membrane for the wings.
-The robot Geipel and her colleagues helped create, by contrast, might be less visually impressive than these two earlier examples. However, its function arguably provides researchers with richer data to actually understand with better detail how real living and breathing bats operate.
-Looking ahead, Geipel says she and her team hope to expand the research to include a wider range of bat species and see if they can understand more clearly how bats distinguish between different kinds of possible prey clinging to leaves. When it comes to studying bats more broadly, she adds, there is still plenty left to uncover.
-“We are just scratching the surface here,” Geipel said.
+The post A robot bat sheds new light on how they hunt in darkness appeared first on Popular Science.
+]]>The post This weirdly shaped pillow might help you sleep better and it’s 40% off at Amazon right now appeared first on Popular Science.
+]]>
-Cozyplayer
+This one is trying to solve two common problems at once: neck support and overheating. The contoured shape is meant to “catch” your head and neck instead of letting you crank sideways all night, and the cooling angle is nice if you’re the kind of sleeper who flips the pillow to find the cold side. It’s $35.98 (40% off), which is about as low-risk as these specialty pillows get.
-If you want the “cooling cervical pillow” idea without overthinking it, this is a straightforward pick at $35.99 (40% off). A contoured pillow can be especially helpful for side sleepers who need a consistent gap-fill between shoulder and head. If you’re trying to stop waking up with that stiff, “what did I do yesterday?” neck feeling, this is a reasonable place to start.
-Not everyone wants a “cooling” cover, and not every bedroom needs more specialty fabric. This one is a simpler cervical-style option that still aims for better alignment, and it’s $39.98 (29% off). If you’re experimenting with contour pillows for the first time, pay attention to whether your chin feels pushed up or down—either one is a sign the loft isn’t right for you.
-The post This weirdly shaped pillow might help you sleep better and it’s 40% off at Amazon right now appeared first on Popular Science.
+]]>The post British soldier’s long-lost memoir rediscovered in Cleveland appeared first on Popular Science.
+]]>Although he may not be a household name, many early American history buffs are well acquainted with Shadrack Byfield. The British soldier served at Fort George near the Niagara River during the War of 1812, fighting in multiple battles over the course of the roughly three year-long conflict.
-At one point, a musket ball wound forced doctors to amputate Byfield’s left forearm—without anesthesia. After learning his limb had been tossed into a “dung-heap,” the recuperating soldier reportedly retrieved it himself so he could bury it in a makeshift coffin.
-Byfield returned to England after the war, but his disability prevented him from going back to his previous job as a weaver. After dreaming of an “instrument” to solve the problem, Byfield asked a nearby blacksmith to build the tool for him. In 1840, the veteran published A Narrative of a Light Company Soldier’s Service, a memoir detailing these and other experiences.
-For over 200 years, historians believed the 1840 book to be Byfield’s only manuscript. However, Cambridge University historian Eamonn O’Keeffe recently discovered the only known copy of an entirely separate book in the Western Reserve Historical Society’s library in Cleveland, Ohio. But unlike Byfield’s first publication, his 1851’s History and Conversion of a British Soldier tells his life story from a very different angle.
-“In the 1840 narrative, Byfield sought to impress wealthy patrons by presenting himself as a dutiful soldier and deserving veteran,” O’Keeffe said in an accompanying statement. “The 1851 memoir, by contrast, was a spiritual redemption story, with Byfield tracing his progress from rebellious sinner to devout and repentant Christian.”
-The second book is also far more confessional. Where A Narrative explored the experiences of a Byfield “comfortably” supporting his family for almost 20 years after receiving his prosthetic forearm, History and Conversion describes his chronic pain and everyday difficulties due to the injury.
-“It now pleased the Lord to afflict me with a violent rheumatic pain in my right shoulder, from which the [musket] ball was cut out,” Byfield writes in the latter book. “I was in this condition for nearly three years…oftentimes I was not able to lift my hand to my head, nor a tea-cup to my mouth.”
-Other memories were more unflattering, such as abandoning his army duties to engage in a plundering excursion with other soldiers.
-“Such unflattering incidents are conspicuously absent from Byfield’s earlier accounts of his military service,” said O’Keeffe. “In the 1851 memoir, the veteran also dwells on periods of indebtedness, illness and unemployment after returning to England.
-Byfield’s difficulties didn’t end after publishing History and Conversion. In 1853, fellow church parishioners accused him of injuring a rival’s eye and face using his prosthetic’s iron hook. The dispute was part of a larger entanglement over rightful control of the village chapel, which eventually grew to include arson, vandalism, and even a riot. Although never convicted of a crime, Byfield and his supporters eventually lost the fight and his job at the time.
-By 1856, Byfield was a widower and returned to his hometown. While he married a second wife, he continued to sometimes struggle financially. In 1867, he published another personal narrative, The Forlorn Hope, and died at the age of 84 in 1874. No copies of this third and final book are known to exist.
-“Uncovering these new details about his life provides remarkable insight into the suffering and resilience of Britain’s homecoming soldiers,” said O’Keeffe. “Byfield’s 1851 memoir emphasises the challenges of post-war reintegration, especially for veterans with disabilities, in the decades after the Napoleonic Wars.”
+The post British soldier’s long-lost memoir rediscovered in Cleveland appeared first on Popular Science.
+]]>The post Veronika the Cow shocks scientists by using a tool appeared first on Popular Science.
+]]>“The findings highlight how assumptions about livestock intelligence may reflect gaps in observation rather than genuine cognitive limits,” Alice Auersperg, a study co-author and cognitive biologist at the university, said in a statement.
-The post Backcountry.com is blowing out dozens of sunglasses for clearance prices during this flash sale appeared first on Popular Science.
-]]>The post What were books like in ancient Greece and Rome? appeared first on Popular Science.
-]]>
If you were to visit a bookshop in the ancient world, what would it be like?
+You don’t just have to imagine it. The ancient Roman writer Aulus Gellius, who lived in the 2nd century CE, gives us a number of descriptions of his adventures at bookstores. In one passage, he describes an encounter at one in Rome, which he was visiting with a poet friend:
+In biology, tool use is defined using an external object to achieve a goal through mechanical means. It is used by both biologists and anthropologists as a key indicator of a species’ brain and cognitive development. In humans, the Oldowan tool kit—three specific stone tools that date back roughly 2.9 million years—is considered the earliest known example of our species using stone tools.
--+I chanced to be sitting in a bookshop in the Sigillaria with the poet Julius Paulus […] There was on sale there the Annals of Quintus Fabius Pictor in a copy of good and undoubted age, which the dealer maintained was without errors.
-
Elsewhere in the animal kingdom, chimpanzees use sticks as tools to access bugs and honey, while crows also use sticks to probe for hidden sources of food. Humpback whales catch fish using “bubble nets,” which some scientists also consider to be a type of tool use.
-Gellius then tells us that, while they are sitting there, another customer enters the shop. The new customer has a disagreement with the dealer. He complains that he “found in the book one error”. The dealer says that’s impossible. Then the customer brings out evidence to prove the dealer wrong.
+In different passage, Aulus tells us about some bookstalls he came across when he arrived by ship at the port of Brundisium on the Adriatic coast. The books, he records, were “in Greek, filled with marvellous tales, things unheard of, incredible […] The writers were ancient and of no mean authority”.
+Veronika is a 13-year-old Swiss Brown cow that is not farmed for meat or milk. She belongs to organic farmer and baker Witgar Wiegele as a companion. Over 10 years ago, Witgar noticed that Veronika would occasionally grab sticks and use them to scratch. Study co-author and animal cognition researcher Antonio Osuna-Mascaró tells Popular Science that Witgar said Veronika was very clumsy at first, but has improved her technique considerably over the years.
--+The volumes themselves, however, were filthy from neglect, in bad condition and unsightly. Nevertheless, I drew near and asked their price; then, attracted by their extraordinary and unexpected cheapness, I bought a large number of them for a small sum.
-
Witgar recorded a video of the behavior and shared it with Auersperg.
-
“When I saw the footage, it was immediately clear that this was not accidental,” she recalls. “This was a meaningful example of tool use in a species that is rarely considered from a cognitive perspective.”
-Aulus goes on to describe in excited language all the weird facts he derived from these books – like how people in Africa can “work spells by voice and tongue” and through this witchcraft cause people, animals, trees and crops to die.
+
Along with Osuna-Mascaró, Auersperg conducted systematic behavioral tests with Veronika. In a series of controlled trials, they presented the cow with a deck brush that was positioned on the ground in random spots. They then recorded which end Veronika selected and which body region she targeted.
-These sorts of stories bring us close to how ordinary people in ancient Greek and Roman times obtained books and engaged with books. But if we read stories like this it might lead us to want to know more. How did books and writing come into existence? And how were books written and produced?
+Across repeated sessions, they found that her choices were consistent and functionally appropriate for the body regions she targeted.
-Many people in the ancient world thought that writing had been invented by gods or heroes. For example, the ancient Egyptians believed the god Thoth was the first to create signs to represent spoken sounds.
+The origins of writing are certainly mysterious. It’s unclear when writing began and who invented it.
+“We show that a cow can engage in genuinely flexible tool use,” added Osuna-Mascaró. “Veronika is not just using an object to scratch herself. She uses different parts of the same tool for different purposes, and she applies different techniques depending on the function of the tool and the body region.”
-The earliest written text is a wooden tablet radiocarbon dated to before 5000 BCE. This is known as the Dispilio tablet, because it was discovered at a neolithic lakeside settlement at Dispilio in Greece. It is carved with strange linear markings. These have not been deciphered, but most scholars think they are a form of writing.
-
Evidence for writing appears early in different parts of the world. In Mesopotamia and Egypt, the oldest texts, such as the Kish limestone tablet at Uruk or the Narmer Palette at Hierakonpolis, date to before 3000 BCE. In the Indus Valley, the Harappan script, which remains undeciphered, appeared around the same time. In China, the earliest characters, the Dawenkou graphs, also date to around 3000 BCE.
+Researchers observed that Veronika typically prefers to use the bristled end of a deck brush when scratching the broad, firm areas of her body such as her back. However, when targeting the softer and more sensitive regions of her lower body, she switches over to the smooth stick end.
-One of the most interesting aspects of early writing is that there is such a variety of different scripts. For example, the earliest known texts in the Greek language are written in the Linear B script, which was used from around 1500-1200 BCE, and wasn’t deciphered until 1952. Linear B is not an alphabet, but a syllabary of more than 80 different signs. A syllabary is a kind of writing system where each sign represents a syllable.
+She also adjusts how she handles the tool. When scratching her upper body, Veronika uses more wide and forceful movements, while her lower-body scratching is slower, more careful, and highly controlled.
-By around the 8th century BCE, most Greeks had starting using an alphabet instead of a syllabary. Unlike a syllabary, in an alphabet each letter represents a vowel or consonant. The Greeks adapted their alphabet from the Phoenician alphabet, probably via interactions with Phoenician traders. The Phoenician alphabet had only 22 letters, making it much easier to learn than the 80-plus syllabary signs of Linear B.
+Our English alphabet comes from the Romans, who in the 8th and 7th century BCE also got their alphabet from the Phoenicians, via the Greeks.
+The team believes that Veronika’s actions meet the standard definition of tool use, but also go one step further. They describe her scratching as flexible, multi-purpose tool use, meaning that she uses different features of the same object to achieve a different outcome. Multi-purpose tool use like this is extraordinarily rare. Outside of our species, it has only previously been documented convincingly in chimpanzees.
-
“Because she is using the tool on her own body, this represents an egocentric form of tool use, which is generally considered less complex than tool use directed at external objects,” said Osuna-Mascaró. “At the same time, she faces clear physical constraints, as she must manipulate tools with her mouth. What is striking is how she compensates for these limitations, anticipating the outcome of her actions and adjusting her grip and movements accordingly.”
-
People in ancient times used many different things as writing materials.
+Importantly, the authors note that Veronika’s life circumstances may have played a major role in the emergence of this behavior. Most cows do not live to 13 or spend their days in open and complex environments. They are also rarely given the opportunity to interact with a variety of manipulable objects. Her long lifespan, daily contact with humans, and access to an engaging physical landscape likely created favorable conditions for her to explore and innovate.
-The Roman writer Pliny the Elder (23-79 CE) tells us that the earliest people in the world
+The team plans to investigate which environmental and social conditions allow these kinds of behaviors to pop up in livestock species, and see how many similar cases may have gone unnoticed simply because no one was looking for them.
--+used to write on palm-leaves and then on the bark of certain trees, and afterwards folding sheets of lead began to be employed for official muniments, and then also sheets of linen or tablets of wax for private documents.
-
“Because we suspect this ability may be more widespread than currently documented,” Osuna-Mascaró said, “we invite readers who have observed cows or bulls using sticks or other handheld objects for purposeful actions to contact us.”
+The post Veronika the Cow shocks scientists by using a tool appeared first on Popular Science.
+]]>The post Tyrannosaurus rex took 40 years to reach full size appeared first on Popular Science.
+]]>However, the most popular writing material in the ancient Mediterranean was papyrus, from which we get our word “paper”.
+Based on the annual growth rings (like those on trees) within fossilized leg bones, scientists estimate that T. rex usually reach adulthood at around 25 years old. However, new research argues that their growth phase lasted significantly longer. They may have become fully grown—approximately eight tons—after 40 years. The paper was recently published in the journal PeerJ.
-To make papyrus, you get the pith of the papyrus plant (Cyperus papyrus), cut it into slender strips, then press it together. Once dried, it forms a thin sheet that you can write on.
+To produce an updated timeline of tyrannosaur growth, scientists studied 17 tyrannosaur specimens of all ages.
-Papyrus sheets were usually glued together into rolls. These rolls could be very long. Some of the most lavish Egyptian papyrus rolls were more than 10 metres long, such as the recently discovered Waziri Papyrus containing parts of the Book of the Dead.
+“We came up with a new statistical approach that stitches together growth records from different specimens to estimate the growth trajectory of T. rex across all stages of life in greater detail than any previous study,” Nathan Myhrvold, a mathematician and paleobiologist at Intellectual Ventures and co-author of the new study said in a statement. “The composite growth curve provides a much more realistic view of how Tyrannosaurus grew and how much they varied in size.”
-When papyri were rolled up they were stored in shelves or boxes. Labels were attached to the handles of the papyri so you could identify their contents. In his play Linus, Greek playwright Alexis (c. 375-275 BC) has one character tell another how to look through a bunch of rolls to find what he wants:
+The team then studied bone slices from the specimens with a type of light that unveils previously overlooked growth rings within the bones. The T. rex bone slices—or cross sections—only consist of the animal’s most recent one to two decades.
--+go over and pick any papyrus roll you like out of there and then read it… examining them quietly, and at your leisure, on the basis of the labels. Orpheus is in there, Hesiod, tragedies, Choerilus, Homer, Epicharmus, prose treatises of every type…
-
“Examining the growth rings preserved in the fossilized bones allowed us to reconstruct the animals’ year-by-year growth histories,” said Holly Woodward, a study co-author and a professor of anatomy at Oklahoma State University.
-Papyrus seems flimsy to the eye, but it is a durable writing material, stronger than modern paper. Many papyri have survived for thousands of years stored in jars or sarcophagi or buried under the sand.
+Together, with co-author and Chapman University paleontologist Jack Horner, Myhrvold and Woodward, assembled a large T. rex data set. From all of this data, it appears that the iconic beast followed the tortoise’s advice—it grew more slowly and steadily than what researchers thought.
-The oldest surviving papyrus text is the so-called Diary of Merer (which you can listen to here), the logbook of a man named Merer, who was an inspector during the construction of the Great Pyramid of Giza under Pharaoh Khufu. This papyrus, which dates to around 2600 BCE, gives a day-by-day account of how Merer and his team of about 200 men spent time hauling and transporting stone and doing other work.
+
Papyrus was susceptible to being eaten by insects or mice. But there were ways to prevent this. Pliny the Elder, for example, advises that sheets of papyrus soaked in citrus-oil won’t be eaten by moths.
+What’s more, the dinosaur’s long growth period might have enabled it to carry out diverse ecological roles before becoming fully grown, Horner explained. This also might be one of the reasons why they ruled at the top of the food chain toward the end of the Cretaceous Period.
-The study also indicates that some of the 17 tyrannosaur specimens might actually not be T. rexes, joining other research suggesting the misidentification of some T. rex specimens. For example, a 2025 study argues that some small fossils, which some researchers thought were young T. rexes, actually belonged to a smaller relative, Nanotyrannus.
-According to the team, these earlier propositions are still controversial and heavily debated. However, their study highlights the possibility that two famous specimens, dubbed Jane and Petey, might not be the same species, as well as other potential reasons why their growth curves are statistically incompatible. Interestingly, these are the same specimens that other recent research categorized as two different Nanotyrannus species.
+The post Tyrannosaurus rex took 40 years to reach full size appeared first on Popular Science.
+]]>The post Amazon has this 262-piece Craftsman Mechanic Tool set for just $129 (down from $249) appeared first on Popular Science.
+]]>If you were living in ancient Greece or Rome and wanted to write a book, how would you do it?
+First, you would buy sheets or rolls of papyrus to write on. If you couldn’t afford it, you’d have to write on the back or in the margins of papyri you already owned.
+If you didn’t own any papyri already, then you would have to write on other materials. According to the Greek historian Diogenes Laertius (3rd century CE), the philosopher Cleanthes (c. 331-231 BCE) “wrote down lectures on oyster-shells and the blade-bones of oxen through lack of money to buy papyrus”.
+ + + + See It + +Second, you would get your ink. In the ancient world, there were many varieties of ink. Normal black ink was made from the soot of burnt resin or pitch mixed with vegetable gum. When buying ink, it would come in powder form, and you would need to mix it with water before using it.
+This is the “stop borrowing tools and start fixing your own stuff” bundle. You get a deep mix of sockets and wrenches (SAE and metric) plus a drawer setup that keeps the small parts from turning into a chaotic pile. If you do basic car work, bike maintenance, or even just assemble a lot of furniture, a comprehensive kit like this saves time because you actually have the right size on hand.
-Third, you would get your pen. It would be made from reed, hence it was called the “calamus” by Greeks and Romans (“calamus” is the Greek word for reed). To sharpen your pen you would need a knife. If you made a mistake, you would erase it with a wet sponge.
+The Greek orator Dio Chrysostom (c.40-110 CE) even advised writers not to use the pen themselves:
+An impact wrench is the fast lane for lug nuts and stubborn bolts that laugh at a regular ratchet. This one runs on the V20 platform and includes a 4Ah battery and charger, so it’s a legit starter kit if you don’t already own into the ecosystem. It’s also the kind of tool you’ll use once, then wonder why you waited.
---Writing I do not advise you to engage in with your own hand, or only very rarely, but rather to dictate to a secretary.
-
If you needed to consult other books while writing, you could get friends to send them to you or ask book dealers to make you a copy. In a papyrus from the 2nd century CE found at Oxyrhynchus, Egypt, and written in Greek, the writer asks his friend to find the books that he needs and make copies of them. Otherwise, you would go to a library, though the best libraries at Alexandria, Rome and Athens might be far away.
+When you finished drafting your book you would need to revise and correct it. You could then publish it by having many copies made by scribes and delivering these copies to friends and booksellers.
+ +When all this was done, your book would be out in public. Perhaps someone like Aulus Gellius would stumble across it in a busy Roman bookshop. Maybe he’d even buy it.
+If your “workshop” is really a corner of the garage (or the trunk of your car), rolling storage is the difference between being prepared and digging through a mess. A modular tower like this keeps larger tools separated from small parts, and the wheels make it realistic to move everything in one trip instead of five. It’s especially useful if you bounce between indoor projects and outdoor fixes.
+The post What were books like in ancient Greece and Rome? appeared first on Popular Science.
-]]>The post Baby chimpanzees like to free fall through trees appeared first on Popular Science.
-]]>After studying videos of 119 wild chimpanzees, researchers found that chimpanzees’ risky behavior peaks in their infancy, and then lessens as they get older. Specifically, they documented that infants were three times more likely, juveniles were 2.5 times more likely, and adolescents were 2.1 times more likely than adults to undertake risks. Chimps are typically classified as infants from birth to around five years old.
+“One of the main findings is that all chimpanzee kids are risky, and that infant and juvenile chimpanzees are even more risky than adolescents,” Lauren Sarringhaus, lead-author of the recent study and a biologist at James Madison University, said in a statement. “That’s noteworthy because that is not what you see in humans.”
+Chimps’ risk-taking was not associated with their sex, nor how high up in the trees they were. In other words, it was equally probable for male and female infants to undertake physical risks at any height. The specific risky behavior studied in chimps was free flight—when they purposefully fall from a branch or jump from one branch to the next without any hold.The risk in free flight is falling and then getting hurt.
+Compared to chimpanzees, it’s more difficult to investigate physical risk-taking in humans. We can’t recreate the behavior in a lab, but even studies based on observations or survey data run into the issue that risky behavior in children (such as doing monkey bars) doesn’t usually continue into adulthood (such as skydiving), and vice-versa.
+Interestingly, this study appears to suggest something novel about our own species. Simply put, the results indicate that while chimp mothers can only restrain their children as long as they can maintain them physically close, human parents and caregivers can continue monitoring them and human children are simply supervised more. What’s more, if we didn’t have this extended overwatch, our risky behavior might also peak earlier instead of being delayed to adolescence.
+“Bryce found that in fact the youngest chimps were doing all of these crazy leaps and drops, and it declined gradually as they aged. We were really scratching our heads thinking, ‘What is going on?’”said co-senior author Laura MacLatchy, a professor of anthropology at the University of Michigan, referring to co-author Bryce Murray. “We realized that the littlest chimps were unrestricted in what they do, as soon as they were out of arm’s reach of their mom and no longer clinging and riding around on their mom.”
+According to indications by earlier work, chimpanzee play might help them exercise abilities related to movement, or understand the results of risky behavior during a particular period of their lives—they are young, lightweight, have “spongier” bones, and have fewer chances of injury
+Indeed, infant chimps frequently take the risks in question while playing, MacLatchy explained, to gain the physical competencies and confidence necessary for an arboreal existence. “Competency as an adult really depends on practice when you’re little,” she added. “Play as practice might be part of what’s going on with these kids. Then again, there may be no stopping them.”
-The post Baby chimpanzees like to free fall through trees appeared first on Popular Science.
-]]>The post How to avoid the iPhone’s notorious ‘silent alarm’ bug appeared first on Popular Science.
-]]>The bug causes alarms to go off, but silently—there’s no audible ring, and no vibration. That’s not ideal if you need to get up for work, a flight, or anything else you have to do. So what exactly is going on? Here’s what we know about the so-called silent alarm bug on the iPhone and what you can do about it.
+
If you set an alarm, it’s important that it actually alerts you at the right time. But these silent alarms that users have been noticing on their iPhones don’t make any sound and don’t trigger any vibrations. They do appear on screen as normal, but they’re completely silent.
+As for what’s causing it, no one seems certain. Back in 2024, Apple said it was fixing the issue, without going into much detail about what was behind it—but users are finding that it’s still happening. Sometimes it seems that a particular iOS version will patch the problem, only for it to show up again in a subsequent version.
+Given that it’s been happening for a long time, and affecting a substantial number of users (but not everyone), it’s possible that there are multiple causes. While there’s been no official guidance from Apple about how to fix it, there are steps you can take to minimize the likelihood of silent alarms.
+
First, make sure your alarms are set as intended from the Alarms tab of the Clock app. Tap on an alarm and you can check the Sound option to see the noise it triggers and the Repeat option to check the frequency—it may be that your alarm is set to go off some days and not others. If a specific alarm isn’t ringing, try deleting it and creating it again.
+You can get to the audio settings for your iPhone by opening up Settings, then choosing Sounds & Haptics. Look at the volume slider under Ringtone and Alerts to make sure it’s high enough. You might also want to turn off Change with Buttons to make sure you’re not adjusting the alert volume accidentally. Alarms shouldn’t be affected by the Silent Mode toggle, but you can try turning this off anyway.
+Under Bluetooth in Settings, make sure your iPhone isn’t connected to any speakers or headphones that it shouldn’t be—otherwise it could be piping your alarm sounds through a different device and not your iPhone speakers.
+Some users have found they can overcome the silent alarm bug by turning off the Attention-Aware Features toggle switch, which you’ll find under Face ID & Passcode in Settings. This changes certain iPhone behaviors, including the level of alarm sounds, if it thinks you’re looking at the screen. It could explain certain silent alarms—though it should only ever lower the alarm volume level, not mute it completely.
+It’s worth saying that the Do Not Disturb mode and any other modes you’ve got set up in Focus in Settings shouldn’t make any difference to alarms—they just control the volume for app notifications—but it’s perhaps worth reviewing them anyway.
+Finally, be sure to keep your iPhone up to date with the latest version of iOS. While it seems as though this bug is persisting in the latest software releases, hopefully at some point Apple will squash it for good, and when that happens you’re going to want to get the update as soon as possible.
+
Something else you can do to try and avoid silent alarms is to install a third-party alarm app, and there are lots to choose from. Alarmy actually prides itself on the loudness of its alarm alerts, so you should have no problems waking up. You can get some extra premium features and remove the ads by paying $4.99 a month, but the basic functionality is free.
+Then there’s Galarm, which packs alarms and reminders into one app, with a host of options available. You can categorize alarms and add notes to them, for example, and go into plenty of detail when it comes to when alarms should repeat. Again, you can opt to subscribe for more features and an ad-free experience, which costs $0.99 a month.
+Sleep Cycle is another app worth considering. Not only will it wake you up, it also has a smart alarm feature that aims to rouse you at the most beneficial time in your sleep cycle (within a preset window). It’ll track your sleep too—there’s a lot to it. You get the basics for free, with a pile of premium features (including weather reports and more sleep stats) available for a $2.99-per-month subscription.
+The post Amazon has this 262-piece Craftsman Mechanic Tool set for just $129 (down from $249) appeared first on Popular Science.
+]]>The post Toyota is drag racing hydrogen-powered trucks in the Arizona desert appeared first on Popular Science.
+]]>Or you can invest in a smart alarm clock. Or just an old-fashioned alarm clock with the big red numbers and real buttons.
-The post How to avoid the iPhone’s notorious ‘silent alarm’ bug appeared first on Popular Science.
-]]>The post Duluth Trading’s winter clearance drops its toughest coats, pants, and outerwear up to 70% off appeared first on Popular Science.
-]]>In December, Toyota announced its intention to amp up US hydrogen infrastructure by investing in FirstElement Fuel, the largest retail hydrogen fueling infrastructure provider in California. The automaker has spent the last 30 years researching and developing hydrogen fuel cells; in fact, Toyota has a full campus in Gardena, California, dedicated just to hydrogen research. While it has been refining hydrogen fuel-cell technologies since 2001, the campus was just renamed the Toyota North American Hydrogen Headquarters (which it calls H2HQ), in 2024.
-Toyota debuted the hydrogen-powered Mirai sedan back in 2015, but so far it’s only available in California, the only place in the country where hydrogen pumps are available for passenger cars. At its Arizona proving grounds, Toyota also tests its heavy-duty class 8 hydrogen fuel-cell trucks, racing them against their diesel siblings. I had the chance to ride shotgun in the FCEV and diesel-powered semi on two separate test runs, and the hydrogen truck is vastly cleaner, quicker, and spits water from its tailpipe instead of noxious fumes. However, getting the rest of the country to adopt H2 is a long game.
-This is the deal for replacing your default jeans with something that’s actually meant for being outside. A solid pair of hiking-style pants earns its keep fast especially on windy days, travel days, and any time you’re climbing over stuff that isn’t a curb.
+Bearing the symbol H and atomic number 1, hydrogen is the lightest and most abundant element in the universe. It can be produced via steam methane reformation, electrolysis, and biomass gasification and hydrogen separation. Fuel cells generate electricity through an electrochemical reaction, not combustion, and are used to provide power for homes, businesses, and transportation. They don’t need to be periodically recharged like batteries, just access to a source of more fuel.
+A fuel cell is composed of an anode, cathode, and an electrolyte membrane. According to the D.C.-based Fuel Cell & Hydrogen Energy Association, this is how the process works:
-A long, insulated parka is the move for truly cold days because it keeps your core warm and doesn’t leave your thighs out in the wind. If you spend any real time outside in winter, this is the kind of layer that makes the whole season less miserable.
+“I think a lot of folks think it’s a very complex system, but it’s just a battery with an anodic cathode; the chemical reaction happens silently as you add hydrogen to the system,” says Debby Byrne, an executive program manager at Toyota North America. “There’s no moving parts, so you get that benefit as well. You’re not taking it into the dealership for oil changes, and you get less wear and tear compared to a piston-driven engine.”
-If winter where you live is more wet-snow-and-freezing-rain than fluffy powder, a waterproof down parka is the right kind of overkill. It’s a long, insulated layer meant to keep you warm while still standing up to ugly weather.
+Oil- and gas-fueled vehicles aren’t a risk-free process either. Gasoline tanks can be dangerous if they’re not made with high-quality materials and processes, and even though the safety measures have come a long way you’ll still see warnings about static electricity on gas pumps across America. Oil is expensive to collect, too, but the infrastructure and support is well established.
-
The whole point of a 3-in-1 is that you’re not stuck committing to one level of warmth all day. It’s the kind of kit that makes sense if your week is split between commuting, dog walks, and the occasional cold weekend hike.
+Hydrogen is a clean energy that may be produced using solar power, wind, and biowaste. Toyota and Connecticut-based FuelCell Energy launched the first-of-its-kind “Tri-gen” system in 2023, which uses biogas from a nearby wastewater treatment facility to produce renewable electricity, renewable hydrogen, and usable water. These products are used for port vehicle processing operations at Toyota Logistic Services Long Beach. .
-Toyota says the use of renewable electricity helps reduce more than 9,000 tons of anticipated CO2 emissions per year, while unused electricity is returned to the local utility. Every day, the Tri-gen facility produces up to 1,200 kilograms of hydrogen daily for fuel-cell electric vehicles, including large class 8 semi trucks, and it recycles about 1,400 gallons of water every day.
-That recycled H2O is used to wash vehicles just arriving from the plant in Japan prior to delivery, which reduces water waste from the local plant. Notably, Toyota and FuelCell’s Tri-gen facility was honored with the US Department of Energy’s 2025 Better Project Award in May. The Better Project Award recognizes innovation in energy, water, and waste reduction efficiency.
-Toyota sees it as a “game changer” for the world, but it has its fair share of skeptics and naysayers. Toyota hosted me and a select group of journalists for a tour of its 12,000-acre testing ground in Arizona recently, and Caleb Jacobs from The Drive entered a skeptic and emerged enlightened, if not completely convinced about hydrogen power. It became clear, he says, that Toyota views hydrogen as a solution for a future not yet clear to the everyday person.
-
Take Toyota’s H2-Overland concept, unveiled at the SEMA show in November, which collects and filters water produced by the fuel cell. Users can then use that replenishing water supply for non-potable functions like washing hands or dishes.
-“Imagine that same idea,” Jacobs says, “but with industrial generators and power supplies.”
+The post Toyota is drag racing hydrogen-powered trucks in the Arizona desert appeared first on Popular Science.
+]]>The post Female mice often have multiple sexual partners—for survival appeared first on Popular Science.
+]]>“Such multiply-sired litters have been suggested to produce benefits in low-quality environments that may be masked in higher-quality environments,” the researchers write in a study recently published in BMC Ecology and Evolution. “So far, however, the effect of environmental quality has only been tested in birds with equivocal evidence.”
-Within this context, two researchers from the Max Planck Institute for Evolutionary Biology in Germany investigated polyandry in western house mice (Mus musculus domesticus). The team put hundreds of mice in each of a number of enclosures mimicking wild habitats. For four years, they gave the mice in some of the enclosures a high-quality diet. The others received a typical, less nutritious diet.They then tracked the mice’s mating behaviors and the results to shed light on reproduction methods in the face of this resource variable.
-Ultimately, around one-third of litters in both the high-quality and lower-quality food habitats had more than one father. However, larger litters (the benefit of polyandry quantified by the study) only came from the lower-quality food habitats, with mothers birthing large litters in high-quality food habitats no matter the number of fathers. This indicates that the benefit of polyandry likely depends on the environment, particularly the food quality for the mother.
+“Our results suggested that polyandry provides greater lifetime fitness benefits when resources are of poorer quality,” the team explains in the study. “In other words, polyandry potentially yields its greatest advantages when resources are a limiting factor, but contributes little when conditions are already favourable.”
-The results also highlight that a specific reproductive behavior can result from particular situations. In times of lower quality resources, females might engage in polyandry in a way that raises the probability of some babies’ survival. This strategy is called bet-hedging, and it might not be as needed when there is lots of food. However, females still usually engage in it, pointing toward another inquiry—why?
-The study paves the way for future research into how and why shifts in ecological pressures impact animal mating behaviors, potentially furthering our understanding of certain differences among species in changing habitats.
+The post Female mice often have multiple sexual partners—for survival appeared first on Popular Science.
+]]>The post A huge iceberg becomes a deadly trap for penguins appeared first on Popular Science.
+]]>According to a research team led by Dr. Jeong-hoon Kim of the Korea Polar Research Institute (KOPRI), survival rates at the colony plummeted by 70 percent. Satellite analysis and drone surveys reveal that the population of new chicks fell from roughly 21,000 last year to just 6,700 this season.
-The primary cause of this event was an iceberg, spanning nearly 14 kilometers. Field observations by KOPRI researchers Jong-U Kim and Youmin Kim confirmed that the ice had obstructed the critical gateway connecting the breeding ground to the open ocean.
-Satellite analysis indicates the iceberg calved from the Nansen Ice Shelf in March 2025. It drifted northward before grounding against Coulman Island. By late July, this blockage had effectively cut off the penguins’ migration route.
-
The obstruction occurred at a critical phase in the breeding cycle. Under normal conditions, females depart to forage at sea after laying their eggs in June, leaving males to incubate the clutch. The survival of the hatchlings relies on the mothers returning 70 to 80 days later to deliver the first meal.
-This year, however, returning females were intercepted by an ice mass roughly the size of 5,000 soccer fields. The iceberg formed a deceptive trap. while its seaward face offered a gentle slope that allowed the penguins to ascend with ease, the side facing the inland colony dropped off into a sheer vertical cliff. Upon reaching the crest, the mothers found themselves stranded, unable to descend to the breeding ground below.
-“The iceberg’s seaward approach has a gentle gradient, making it accessible, but the edge facing the breeding ground forms a precipitous cliff,” Dr. Kim explained. “Mothers following their usual route over the sea ice were suddenly confronted by this insurmountable barrier.”
-Drone imagery captured a scene of desperate frustration. Hundreds of adult penguins were massed at the base of the ice cliff, pacing nervously as the topography barred them from the colony. The surrounding ice was heavily scarred with guano, evidence that the birds had been stranded there for a prolonged period.
-For the males waiting above, the blockade was catastrophic. Having already fasted for more than 70 days to incubate their young, they were pushed to their physiological breaking point.
-”Males must survive to ensure future breeding opportunities,” Dr. Kim explains, outlining the brutal calculus of nature. ”It is highly likely they were eventually compelled to abandon the chicks and retreat to the ocean, unable to endure the starvation any longer.”
-Researchers estimate that the surviving 30 percent of chicks were fed by mothers who managed to find alternative routes around the blockage. ”If the iceberg clears before the next breeding season, there is potential for recovery,” Dr. Kim said. ”But if the blockage persists, we may see long-term impacts, including the forced relocation of the entire colony.”
-
The Ross Sea serves as a vital sanctuary for Emperor Penguins. Whereas areas like the Antarctic Peninsula have struggled with early ice breakup and chick fatalities, the Ross Sea has remained comparatively stable. Sheltered deep within the continent, it benefits from robust sea ice and protection from rapid temperature shifts.
-However, the arrival of this iceberg introduces a volatile new threat to their survival. The incident was an anomaly. After calving from the Nansen Ice Shelf, the iceberg collided with drift ice near Coulman Island, a crash that diverted its path and sealed off the colony’s entrance. KOPRI researchers warn that this is not an isolated event but a harbinger of things to come. As global warming accelerates, frequent iceberg calving increases the risk that such blockades will occur again.
-Icebergs of similar magnitude are still frequently observed in the region, traveling along drift paths that intersect with other Emperor Penguin habitats. While icebergs from the Nansen Ice Shelf typically follow established routes, analysis suggests this specific iceberg veered off course after striking underwater terrain or other ice masses—a deviation that led it straight to the colony.
-
The team also noted that 14km iceberg also skirted Cape Washington, another major breeding ground. Researchers warn that if a future iceberg were to collide with this site and block its migration corridor, it could trigger another mass mortality event.
-Dr. Jin-ku Park, who analyzed the satellite data, expressed concern about the wider implications. “The trajectories of icebergs calving from the Nansen Ice Shelf frequently traverse other major habitats,” he said. “This indicates that the disintegration of ice shelves poses a latent but potent threat to Emperor Penguins and other Antarctic wildlife.”
-KOPRI plans to submit these findings to international bodies next year, including the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). Although discussions to designate the Emperor Penguin as a ’Specially Protected Species(SPS)’ are ongoing, progress has been blocked by objections.
-“Objective, scientific evidence is a prerequisite for designating a species as protected,” Dr. Kim emphasized. “The Coulman Island case will serve as critical empirical proof of just how specific and lethal the threats posed by climate change are to the Emperor Penguin.”
-Since 2017, KOPRI has monitored the Antarctic ecosystem as part of a Ministry of Oceans and Fisheries initiative focused on the Ross Sea Marine Protected Area. The institute aims to use the data from this incident to refine its remote sensing techniques and accelerate Antarctic conservation efforts.
-“This catastrophe underscores the unpredictable dangers climate change poses to the Antarctic ecosystem” said Dr. Hyoung-chul Shin, President of KOPRI “We plan to intensify satellite monitoring and field surveys during the next breeding season and continue investigating the impact of climate change on this fragile environment.”
-The story was produced in partnership with our colleagues at Popular Science Korea.
+The post A huge iceberg becomes a deadly trap for penguins appeared first on Popular Science.
+]]>The post Backcountry.com’s 3-day clearance flash sale dropped jackets, hoodies, fleeces, and more up to 70% off appeared first on Popular Science.
+]]>If you’re looking for new shades, go check out these Backcountry sunglasses deals up to 70 percent off.
-This is the kind of cold-weather staple that actually earns its closet space. A hooded puffer works for everything from winter commutes to shoulder-season hikes, and this discount is big enough to justify grabbing it now.
-The higher coverage helps keep cold air and powder where it belongs, and “GORE-TEX 3L” in the name is a solid signal this is meant for nasty weather days, not just fair-weather laps.
-This one is easy to justify at this price. Chuck it in a daypack, keep it in the car, or pack it for travel so a surprise downpour doesn’t turn into a soggy, miserable afternoon.
-The post Duluth Trading’s winter clearance drops its toughest coats, pants, and outerwear up to 70% off appeared first on Popular Science.
-]]>The post Hubble spots three young stars going through growth spurts appeared first on Popular Science.
-]]>A T Tauri star is a young star, usually less than 10 million years old. During this phase, the still-growing stellar object sees the dust and gas surrounding it begin to disappear as stellar winds, radiation, and other ionized particles bombard it. This dynamic environment is reflected in the star’s brightness, which randomly fluctuates depending on the material interactions underway in its accretion disk. More regular shifts in brightness can also occur as sunspots move in and out of view to astronomers here on Earth.
+The T Tauri examples seen in Hubble’s image have a long way to go before they resemble the stars most observers recognize. Gravity will continue to bear down on the object until it forces hydrogen and helium elements to fuse in the star’s core, at which point it will finally become a main sequence stellar object.
+The stars in Scorpius are further along in their growth than the protostars highlighted by NASA on January 14, however. About 1,300 light-years away, protostars in the “sword” of Orion are getting their start inside the constellation’s Orion Molecular Cloud complex. Astronomers aimed Hubble toward this area of the sky to better understand outflow cavities—areas where a protostar’s gas and dust is shaved away by nearby stellar winds.
-The post Hubble spots three young stars going through growth spurts appeared first on Popular Science.
-]]>The post You need a portable jump starter in your car and Amazon has these GOOLOO models for clearance prices appeared first on Popular Science.
-]]>Keep it in the trunk, forget it exists, then use it once every couple years to feel like a genius. The integrated cables won’t get lost in your car and you won’t have to depend on a kind stranger for a jump. The 100W charging matters, too—on road trips it can pull double duty as a legit power bank for phones, tablets, and other USB-C stuff.
+
- GOOLOO
-If you’re trying to cover the two most likely roadside problems with one device, this is the pick. Jump the car when the battery gives up, then top off a tire after you’ve been ignoring that warning light for a while. The inflator’s auto-off feature is underrated: you set the target pressure and let it stop itself.
+Sometimes you just want the affordable, no-drama option. Compact, cheaper than a tow, and capable of bailing out most everyday vehicles without taking up half your trunk, it’s well worth the price.
+If you drive something larger, live somewhere cold, or just want the most headroom, start here.
+If you drive a typical commuter car, this tier is often plenty—and it’s the easiest on the wallet.
+If you only want to throw one thing in your trunk and call it a day, pick from this section.
+If your car doesn’t have a full-size spare (most don’t), this is a smart add.
+If you’re tired of guessing why the check-engine light came on, a scanner can save time (and sometimes a trip) by giving you a starting point.
+Not car gear, but still useful: rechargeable air dusters are basically a reusable can of compressed air. They’re handy for keyboards, PC fans, car vents, and all the places dust likes to hide.
+The post You need a portable jump starter in your car and Amazon has these GOOLOO models for clearance prices appeared first on Popular Science.
-]]>The post How to make a Blockbuster VHS sleeve for any movie appeared first on Popular Science.
-]]>That’s not to say you can’t recreate at least some of those nostalgic aesthetics. A highly accurate tape case design was first uploaded online in 2024 by programmer Ryan Finnie. At the time, however, making your own sleeves required a fair amount of manual input and adjustment. As spotted by BoingBoing, digital strategist and creator Tex Jernigan recently debuted the streamlined, free-to-use Blockbuster Sleeve Generator. Like the name implies, the website allows anyone to print out customized, highly accurate tape case labels that look nearly identical to the iconic blue-and-yellow slips once seen lining video store aisles. All the customizable elements are also integrated into a single program for any cinephiles yearning for a bit of VHS roleplaying.
+“[Blockbuster] closed in 2010, but it lives on in our hearts as a beloved symbol of video rental culture,” Jernigan explained on the project’s website.
+
The generator is also integrated with a film database to automatically fill in backsleeve information like cast, director, summary, release year, and approximate runtime. To make your case really look like the real thing, Jernigan even gives it an inventory barcode. After using the site’s Store Search tool (also free), users can identify the childhood Blockbuster store’s retail location number, then add on the movie’s unique code as well as the hypothetical inventory’s copy number.
+It’s a nifty craft project for people looking for something to do with that old box of VHS tapes in the back of their closet. Jernigan also tells Popular Science that the best way of porting a show or movie onto a blank VHS tape (yes, they’re still available to buy).
+“It’s funny, the best way is still the same: you hook a VCR up to any TV, and then press record and watch the TV while it records in real time,” he says, adding that there are also cheap HDMI-to-AV converters you use for converting from a laptop or computer.
+“It does a slight squeezing of 1080p video so that it fits onto the screen. I think it does a great job,” he says.
+Jernigan does note it’s worth mentioning that his personal project is “focused on the design and nostalgia side” of VHS culture, and is not intended to help illegal copying or redistribution.
+“I always try to encourage people to be mindful of copyright and local laws and to respect the original creators,” he says.
+But for your own home, there are few ways to better respect the pinnacle of video rental outlets than trying out Blockbuster Sleeve Generator.
-The post How to make a Blockbuster VHS sleeve for any movie appeared first on Popular Science.
-]]>The post Bose is clearing out refurbished audio products, including a soundbar for just $99 appeared first on Popular Science.
-]]>This low-effort upgrade for your TV is a simple set-and-forget solution to coax dialogue out from behind explosions and background music. Sidestep those tiny, tinny built-in speakers with an easy, one-connection setup. It supports Dolby decoding and is compact and clean-looking, tuned to make voices sound crisp at sane volumes and without redoing your living room.
+When the world won’t stop being loud, QuietComfort earbuds are the low-key solution. Bose noise cancellation is top-tier, and the fin-secured fit never feels clunky. The sound lands rich and controlled, offering a pocketable escape pod from the hustle and bustle. If you want serious focus without a serious investment, this is the move—ideal for flights, commuting, or making an open office feel a lot less open.
+Whether you want background music or event audio, this is the kind of portable speaker that makes everyday listening better. It’s compact, rugged, ready for spills and designed for thrills. The sound is punchy with balance but satisfying bass, whether you’re into podcasts in the kitchen, music in the backyard, or chill hangouts that don’t need a gigantic party speaker.
+The post Bose is clearing out refurbished audio products, including a soundbar for just $99 appeared first on Popular Science.
-]]>The post In ancient Arabia, people dined on sharks and stingrays appeared first on Popular Science.
-]]>Since 2020, researchers from the Archaeological Institute of the Czech Academy of Sciences, Prague (ARÚ) have investigated Wadi Nafūn, an ancient grave site megalith (a structure built with large stones) used by Neolithic locals during the 5th century BCE. Amid their excavations, researchers found the skeletal remains of over 70 men, women, and children. But this wasn’t a single generation of people. The crypt’s size and subsequent radiocarbon dating indicate that Wadi Nafūn was built and maintained communally for over 300 years.
+“This monument was not built by a single small group. It represents cooperation, shared beliefs, and repeated return to a common ceremonial landscape,” project director lžběta Danielisová recently told Arkeonews.
+
However, Danielisová and collaborators faced an immediate challenge. Biological materials like teeth and skeletal fragments usually do not retain many organic components after being exposed to Oman’s arid climate for thousands of years. To properly understand their discoveries, the team needed to ship the materials back to the Czech Republic. There, they utilized isotopic analysis to examine a mineralized substance called bioapatite that remains on bones even after collagen disappears.
+They particularly focused on traces of carbon, oxygen, and strontium to pinpoint some of each Neolithic person’s dietary sources of protein. But it was the discovery of certain nitrogen isotopes that surprised them most, as these compounds are only found in very specific marine animals.
+“We know that these were not just ordinary proteins, but proteins from the top of the food chain,” Danielisová said in a university statement.
+For hundreds of years, it appears the Neolithic communities of southern Arabia regularly hunted and consumed sharks. They didn’t only eat the apex predators, either. Throughout Wadi Nafūn, archaeologists excavated shark tooth pendants, additional tiger shark teeth, fishing tools, and stingray barbs. In order to harvest all these materials, the Neolithic hunters appear to have even used their own teeth to help process and prepare their catches.
+“The teeth of this community have an interesting pattern. This indicates a specific diet and also that people used their teeth as tools,” explained ARÚ Prague anthropologist Jiří Šneberger.
+Additional evidence gleaned from the isotopic analysis also showed that some of the individuals buried at Wadi Nafūn weren’t technically locals. Strontium and oxygen levels suggest certain adults buried here at least spent their childhoods over 30 miles inland. Taken altogether, the shark and human evidence illustrate a highly dynamic, resourceful, and collaborative region that used everything at their disposal to flourish.
+The post Backcountry.com’s 3-day clearance flash sale dropped jackets, hoodies, fleeces, and more up to 70% off appeared first on Popular Science.
+]]>The post Backcountry.com is blowing out dozens of sunglasses for clearance prices during this flash sale appeared first on Popular Science.
+]]>“For the very first time, we were able to use natural science data to document specialized hunting of marine predators, directly by analyzing the local buried community,” said Danielisová. “The connection of this burial community with sharks is very interesting and is a new finding not only in prehistoric Arabia, but in the area of all Neolithic cultures of the arid zone.”
-The post In ancient Arabia, people dined on sharks and stingrays appeared first on Popular Science.
-]]>The post Don’t pick up frozen iguanas appeared first on Popular Science.
-]]>Once you’ve got a new pair of shades, go check out more deals on outdoor gear for up to 70 percent off at Backcountry.
-When air temperatures get cold enough, the reptiles will get stunned (or freeze) and fall from trees. Today, morning temperatures in Jacksonville and Tallahassee dipped as low as 20 degrees Fahrenheit overnight, while Orlando hit the mid-30s, and Miami fell to the upper 40s. All temperatures that are cold enough to temporarily freeze an iguana.
+Reptiles like iguanas are cold-blooded—or ectothermic—reptiles that rely on external environmental conditions to regulate their body temperature. By comparison, warm-blooded or endothermic animals like humans and other mammals have a more consistent body temperature. Since the outside temperature has such a drastic effect on their bodies, cold-blooded animals often adapt their behavior as a response. They may bask in the sun to warm up or find shade to cool down and achieve a more balanced body temperature.
+If you actually do “move fast, sweat a lot” activities, these are built for it. The magnetic lens swap system makes it realistic to switch lenses without smudging everything up, and the shape is more performance-first than fashion-forward—which is exactly what you want on long rides and runs.
-When it gets cold, iguanas may also enter a dormant state called cold-stunning or freezing since they are not adapted to life in colder temperatures. Iguanas can start to slow down if the temperature gets below 50 degrees, and stun once they hit the 40s or 30s.
-“When that happens, they may lose their grip and fall from the trees,” said AccuWeather Meteorologist Brandon Buckingham. “It’s a unique cold-weather hazard in Florida.”
+After they fall from a tree, they may appear to be dead. However, their critical body functions will all still be working and they will continue to breathe. Once temperatures rise, they can jump back into action as if nothing happened.
+ +Iguanas can grow up to seven feet long and weigh upwards of 30 pounds, so it is best to be cautious when walking under palm trees in colder weather. Getting hit by a reptile of that size could be dangerous.
+If you want a pair you can beat up a little, these are a good “throw them on and go” option: polarized lenses to cut glare off snow/water/traffic, a grippy fit for hikes and bike days, and an Rx-ready frame if you’re tired of choosing between sunglasses and seeing clearly.
-If you see a frozen iguana on the ground, do not rush in to warm them up. Joe Gonzalez from the Iguana Police told WPTV in West Palm Beach that relocating or interfering with an iguana can lead to more problems.
+Zeal Manitou Sunglasses – Men’s — $103.05 (was $229.00)
Photochromic lenses are the move for “sun in the parking lot, clouds on the trail, sun again at the summit” days. These automatically lighten/darken as conditions change, and they’re polarized for glare control, so you’re not constantly swapping eyewear or squinting through reflections.
“If you capture an iguana in your own yard and don’t move it anywhere else, that’s fine,” Gonzalez said. “But if you relocate it, you’re essentially taking your problem and dumping it somewhere else. This can have legal consequences, including fines.”
+RAEN optics Squire Polarized Sunglasses $61.50 (was $205.00). A rare “nice sunglasses” deal. These lean classic and wearable, so they work as everyday shades, not just trail gear. If you want something that looks good with a puffy jacket and also doesn’t feel out of place at brunch, this is the move.
-Instead, it’s best to just leave the iguana alone. It will usually be fine once it gets over 50 degrees again.
-The post Don’t pick up frozen iguanas appeared first on Popular Science.
-]]>The post Why do cats lick you? An expert explains. appeared first on Popular Science.
-]]>Electric Crasher 49 Polarized Sunglasses $124.98 (was $249.95). This is the kind of 50%-off deal that makes upgrading feel justified. You’re getting polarized lenses and a sturdier, lifestyle-friendly frame that’s more “all day” than “one specific sport.”
-But some felines don’t just lick themselves: They also lick you. A cat will be busy grooming themselves. Then, without warning, they’ll turn their spiky tongues on their unsuspecting humans. Other cats can’t be bothered and won’t ever groom or lick their human friends, or other kitty friends for that matter.
+So, why do some cats lick their owners? Are they trying to clean you, too? We asked an animal behaviorist and cat expert to help us sort out exactly what is going on when your cat licks you.
+For a mother cat, grooming is an important part of child rearing. When a mama cat licks her kittens it serves two important purposes: keeping her kittens clean and promoting social bonds, Kristyn Vitale, an animal behaviorist at Maueyes Cat Science and Education tells Popular Science.
+On the one hand, “mother cats are going to groom their kittens to help keep them clean and healthy,” says Vitale. Kittens can be especially susceptible to diseases, and “anybody who’s raised young kittens knows how dirty they can get, and a mother cat is not going to obviously bathe their kitten in a tub. They’re going to use their tongue to clean them.”
+
But grooming also helps a mother cat strengthen her relationship with her kittens, says Vitale. A mother licking her babies is “one of the kitten’s first forms of social interaction.”
+It’s essentially a way for mothers to say, “I love you and I care for you.”
+Kittens learn to groom from their mom, and usually start grooming themselves when they’re around four weeks old. Pretty soon after that, some cats “begin to reciprocate [their mother’s] grooming and they’ll groom their siblings or other unrelated cats and also preferred people in the house,” says Vitale.
+If your cat grooms other cats, animal behaviorists like Vitale call those cats their “preferred associates.” For instance, bonded cats often groom each other as a way to reinforce their bestie status. For cats, grooming other cats becomes “a very important social behavior that helps build bonds between the individuals.”
+We also see the same behavior in wild cats where mothers groom their cubs to keep them clean and strengthen their connection, says Vitale. In adulthood, wild cats might continue to groom others. You don’t have to search hard to find adorable videos online of lions and tigers licking their besties.
+But Vitale says there is one big difference here. A lot of wild cats, like tigers or even the closest relative of domestic cats, the African wild cat, “don’t live in social groups the same way the domestic cat does.” So they don’t always have the same opportunities to shower their buddies with love, because, well, they just don’t really have many buddies.
+So why, then, do some cats licks their owners? In general, if your cat licks you, it’s them saying (in so many licks) that they love you.
+Vitale says when her cat licks her, she sees it as them “engaging in a social behavior with me” that’s strengthening our relationship. “I’m thinking in my mind that they’re just in a happy mood and looking to hang out together and interact a little bit.”
+While all cats groom themselves (which is why you don’t really need to worry about baths for most cats), not all cats groom other cats or their human friends. But should you feel bad if your cat doesn’t lick you? Does it mean they don’t love you? “No!” says Vitale.
+“Licking’s just one social behavior they could engage in. If your cat just sits on your lap, or sits near you, or your cat’s rubbing up against you, or your cat plays with you, those are all other social behaviors that show there’s a bond,” she says. Cats show love for their owners in all sorts of ways, she emphasizes. “Licking is just one thing a cat could do.”
+Vitale has three cats, and of the three she says only one licks her, “very, very sparingly, like once or twice a month.”
+So, don’t worry, whether they’re a licker or not, your cat loves you. They might just have a different way of showing it.
+In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
-The post Why do cats lick you? An expert explains. appeared first on Popular Science.
-]]>The post The best folding electric bikes for 2026, tested and reviewed appeared first on Popular Science.
-]]>All sorts of interesting one- and two-wheeled vehicles crisscross my city streets, including an increasing number of affordable, portable forms of tech-packed personal transportation . Spandex-clad cyclists take advantage of protected lanes, while electric scooters zip over sidewalks (and anywhere else). Occasionally, an odd unicyclist or one-wheeler breaks up the predictability. I particularly like to watch foldable e-bike riders who go from trail to train, transforming their personal transit into a cube to carry through a crowd. These now-you-see-it, now-you-don’t collapsible electric bikes offer power assistance for commuting or errands without taking up valuable real estate in an apartment or townhouse. These flexible options can often fit into an SUV or RV for extended outdoor adventures without the need for a heavy-duty, and often expensive, rack. We’ve updated the most reliable options—like our best overall, the Lectric XP4—so you can find the best folding electric bikes to match your riding style and needs.
+ +We don’t test these bikes in a lab—we take them out into the wild. That means folding and unfolding them on sidewalks, rolling them into elevators to see if they actually fit, and lifting them into car trunks to find out if it’s a one-person job or a two-person struggle. We ride the same loops we’d take to work or the store—complete with potholes, stoplights, sketchy shoulders, and plenty of zippy scooters.
+Every bike gets pushed on performance: full pedal assist, lights on, up and down hills until the battery taps out. We pay attention to what it’s like to live with the thing—how it rides, how it folds, and whether we’d actually want to use it every day.
+Folding e-bikes are all about space efficiency, but what that looks like depends on the rider and what accessories you might want to carry. If you’re an urban commuter navigating a cramped apartment, crowded train platforms, and zero bike parking, you want something that folds fast, rolls easy, and doesn’t make enemies in the elevator. On the flip side, RVers, van-lifers, or campers may want a more rugged ride with enough power and range to cruise trails, run errands, or sub in for a car when you’re off-grid.
+All folding e-bikes promise one thing: they take up less space when you’re not riding them. Most have shorter wheelbases, lower standover heights thanks to smaller diameter wheels, and upright riding positions that keep you visible in traffic and balanced at low speeds. But the real magic is in the fold, whether that’s a single hinge or a multi-jointed origami routine. If you’re just tucking it into a hallway or closet, weight might not be a dealbreaker. But if you’re hauling it into a trunk or up a flight of stairs, make sure it’s something you can lift without needing an ice pack after.
+If you’re used to riding full-sized bikes, folding e-bikes do take some getting used to (as do all e-bikes). Taller riders might feel like they’re perched on a circus act, while smaller riders often find the compact fit more confidence-inspiring. The sharper turning radius is a win in tight spaces, but some gearing setups can leave you spinning without much payoff. Ride a few miles, though, and most people settle into the rhythm quickly.
+Lectric is one of the OGs of foldable electric bikes, so much so that I’d nearly always get a shout or recognition from another Lectric rider when I was riding one around town. They’d chat with me at a stop or ride alongside me for a bit, and I can honestly say it’s never happened to me on another brand of e-bike. The Lectric XP4 finetunes what it’s learned from previous models for an affordable, fun ride with five pedal-assist levels and a thumb throttle. Lectric added more juice to the 500W motor, which can peak at 1,092W and kick out 55Nm of torque.
- - - -The tires are fat-tire lite—20 by 3 inches with custom tread—which makes for a more cushioned ride with the front suspension fork. The improved Shimano Altus gearing and an in-house-designed torque sensor mean less furious pedaling than other models to get up to top speeds. Lectric lists the standard step-over at $1,300 (there are also step-thru and long-range variations), but you can often find it on sale for a grand—and yet, it still has hydraulic brakes, which are a rarity at this price point. The XP4 also comes stock with many nice commuter extras, like integrated lights, front and rear fenders, and a monster rear rack that can hold up to 150 pounds. Lectric offers a ton of accessories, including a passenger seat for light riders (e.g., kids). It now features a TFT LCD color display with a USB-C charging port.
- - - -For most people, the Lectric will meet their folding e-bike needs, but it’s not perfect. Lectric, more than many brands, makes you well aware of cords. While the wiring up front is well-organized, nothing is internally threaded. It folds at two points—at mid-frame and the handlebars—and it frankly takes some practice to align pedals, handlebars, and wheels just right. You’ll also need a bungee cord (or something similar) to keep everything nice and tight if you want to move the bike while folded (see below). But it does get small enough to go into a typical car trunk—not a Miata, let’s not get crazy. It is, however, a heavy 62 pounds (69 unless you scrap the battery).
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The Brompton Electric G Line doesn��t look like your average e-bike—and that’s the point. This is the electrified version of Brompton’s iconic folding bike, designed for people who need a compact ride that’s easy to stash indoors or carry onto public transit. It folds down smaller than anything else in this roundup, and hides its motor and battery inside a clever front-mounted bag that clicks on and off the frame. It’s a refined solution for riders who live in apartments, juggle multi-leg commutes, or just don’t have a safe spot to lock up a full-sized bike.
- - - -At about 43 pounds, the Electric G Line is heavy for Brompton but very light for an e-bike, especially a folding one. Its signature tri-fold is among the fastest folding bikes: pivot the rear wheel under, collapse the main frame, and fold down the handlebars. The whole process only takes a couple of minutes, and the rear rack has wheels that let you roll the folded bike rather than lug it around. Skilled unfolders can kinda flick the bike open, but my short stature never got the hang of it—or it could be the G Line’s larger 20-inch wheels. Still, for people who go from bike ride to subway, the whole package rolls easily through a station and can slide under a desk once you get to an office.
- - - -Despite its small size and quirky looks, the G Line rides like a much bigger bike. The 250W rear hub motor is quiet and natural-feeling, giving a smooth assist that enhances your pedaling without ever lurching forward. It’s paired with a 345Wh battery and a four-speed drivetrain that shifts cleanly—even if you might wish for an extra gear when really pushing. The high-volume Schwalbe tires soak up most road chatter, and the stretched frame geometry gives it a stable, planted feel. On paved streets and smooth trails, it feels confident and composed. Gravel is more of a backup plan; the G Line can handle light dirt or hardpack, but without suspension, rougher terrain sends vibration straight to your hands.
- - - -The cockpit is minimal, and that can be a blessing or a quirk depending on your style. The small color display looks great, and you change pedal assist level by rocking the screen up or down. However, so many control units use physical buttons or touchscreens that this movement isn’t necessarily intuitive. You can also change assist levels from the battery bag or via the Brompton app, but neither is a fast mid-ride adjustment. On a full battery with max assist, it delivered over 27 miles of city and trail riding in testing, and it steps down its support gradually as the battery drains. Even fully unpowered, the bike is easy to ride thanks to its well-balanced frame and drivetrain.
- - - -The G Line isn’t a casual purchase—it starts around $4,950—but it’s not built for casual needs. It’s a splurge for riders who want the convenience of a folding bike with the ride feel of something much larger, and who plan to use it as part of everyday life. If your bike lives inside with you, travels on trains, or gets folded twice a day, this one earns its keep. As we explained in our full review, the G Line makes few compromises for something this compact, and still manages to be fun, functional, and unexpectedly fast.
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The Heybike Mars 3.0 is built for weekend wanderers, RV adventurers, and anyone who’d rather be bouncing down a trail than weaving through traffic. With 4-inch fat tires and full suspension, it turns cracked pavement and chunky gravel into something closer to a suggestion than a challenge. It’s less about fitting into tight spaces and more about blasting out into wide-open ones.
- - - -Twist the throttle or tap the pedals, and the Mars 3.0 surges forward like it’s been waiting for a greenlight at a race track. In Eco mode, pedaling feels effortless, and hills practically vanish. Kick it into Boost, and pedaling becomes optional. The plush suspension softens every hit, giving even rough trails a floaty, playful vibe. It’s the kind of ride that makes you seek out the bumpy route just for the fun of it.
- - - -Yes, it folds, but you’ll need to mean it. At around 70 pounds, the Mars 3.0 is hefty, and the folding process—collapsing the frame and dropping the handlebars—is made trickier by its bulk and a center hinge that started out pretty stiff. There’s a built-in stand to keep stress off the drivetrain, but lifting it into a car is a two-person job for most people. It fit in a hatchback, barely, and would be more at home rolling into an RV or the back of a pickup.
- - - -You’ll also need to keep track of the required key, and in fact, the Mars 3.0 features a multilayered security system that lets you choose between unlocking the bike with the app, PIN code, or NFC card. It feels like overkill until you remember this bike is basically a joyride machine, and Heybike clearly doesn’t want it rolling away without you.
- - - -If you think of folding as a way to bring your bike to the trail—not necessarily store it under your desk—this one makes a strong case. As we explained in our full review, the Mars 3.0 trades sleekness for capability, and for the right kind of rider, that’s exactly the point.
- - - -
The Velotric Fold 1 Plus answers the question, “Can a bike be chill and still haul?” with a confident yep. Its 750W rear hub motor (1,100W peak) rockets you off the line, while a 624Wh battery delivers an eyebrow-raising 68 miles on pedal assist. That’s “all-day adventure” territory—without the sore legs.
- - - -One size really does fit all here (as our full review reveals): the ultra-low step-through frame welcomes riders from 4’9” to 6’5” and keeps cargo (up to 120 pounds on the rear rack) stable and steady. The ride is pure cush—front suspension, plush saddle, upright stance, and chunky 20×3-inch puncture-resistant tires soak up bumps so you can focus on grinning.
- - - -Commuter cred? Fully earned. Full fenders, a 130-lux aimable headlight, brake-activated rear light with turn signals, hydraulic disc brakes, and even a USB-C port to juice your phone mid-ride. It folds to 37.8 x 19.7 x 33.5 inches—compact enough for SUVs and RVs—while a built-in stand and velcro strap keep the package neat. Though it would be bulky if you’re trying to go from trail to train.
- - - -Here’s the kicker: you can tune it to your mood. Swap between torque and cadence sensors, tweak top speed up to 28 mph (or dial it down for the kids), and track every ride through the Velotric app—with Apple Find My as your digital safety net.
- - - -Fast, comfy, and ridiculously versatile, the Fold 1 Plus isn’t just a folding bike—it’s your ticket to go farther, faster, and have more fun doing it. A do-it-all folder for riders of almost any size, this e-bike aims to (and mostly does) fit nearly everyone’s needs.
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The Urtopia Carbon Fold 1 is a shockingly delightful but diminutive Shimano Altus 8-speed commuter that folds up fast and rides even faster. Thanks to its brightly painted carbon fiber frame and fork (the company’s signature material, Saffron Yellow colorway shown above), this bike weighs just 29 pounds. That makes it light enough to toss into small car trunks or an RV for road trips, camping, or other overlanding adventures. And makes it a dream if you live in a multi-story walkup and/or need to factor subway rides into your commute. Despite its compact build (which arrives fully assembled), it can support riders from 5’1’’ to 6’1’’ and up to 220 pounds in total weight, though taller or long-legged riders may feel somewhat cramped.
- - - -Little details make a big difference: Built-in magnets keep the bike securely folded while you move it around—no awkward flopping. Heavy-duty latches lock it back into riding position. Cable management is clean. A central cutout serves as a handle and place to thread your chain, so no one can fold the bike off its lock.
- - - -Out on the road, the 500W peak rear hub motor and 42Nm of torque provide quick, zippy acceleration, allowing you to reach speeds of up to 20mph. Its low standover height makes it super-easy for frequent stopping and standing during city rides. It also has a short wheelbase, making it excessively nimble—great for dodging cars illegally parked in the bike lane and weaving through potholes, cones, or people staring at their phones. Plus, the TEKTRO hydraulic disc brakes are responsive. It’s surprisingly fun for something whose main function is to be practical.
- - - -The 252Wh battery is cleverly hidden in the seat post (which can be fully removed for charging/storing … or to deter thieves, because a bike with no seat is just an extremely inconvenient scooter). It powers the motor, but also the color screen and integrated headlight/taillight. It feels like it’s designed for several short jaunts rather than significant mileage; however, as the published 40-mile range seems optimistic, especially on assist levels above Eco (Touring mode felt closer to the 20s).
- - - -My version two wishlist includes a more sensitive torque sensor and a bigger battery, but for anyone short on space—or anyone who wants a travel bike without messing with a rack—the Carbon Fold is a blast. The Carbon Fold 1’s recommended retail price is $2,500, but it has been consistently on sale for $1,600.
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- The Ride1Up Portola has a big ol’ motor—750W, the largest of this roundup. It also features a front suspension fork, 8-speed drivetrain, hydraulic brakes, and a muscular welded rear rack that can hold up to 130 pounds. These details are surprising to find on a folding e-bike and downright shocking to find on one that costs less than a grand.
- - - -The Portola offers a lot to like, especially at the price point. Sturdy 20-inch by 3-inch tires and a front suspension fork work together to keep the rider relatively comfortable. There’s only one frame size, which Ride1Up calls “one size fits most,” or in this case, means riders from 4’10” to 6’4”—though taller riders or long-legged ones note they’d like a little more extension when they pedal.
- - - -The Portola initially starts with a 10.4Ah battery, but an upgrade to 13.4Ah is only $100 more. With five pedal-assist levels and a throttle, you might want the extra juice. The range is up to 40—or 45 with the larger battery. The e-bike also can be switched between Class 1, 2, or 3, depending on whether you want to limit or unleash a potential top speed of 28 mph. And here’s one very simple but very nice touch that many folding bike makers overlook: The Portola has a small velcro strap to secure the bike when it’s folded. It takes some fussing to get the wheels and handlebars just right, but folding bike owners frequently add their own bungees or straps because nothing was included.
- - - -Usually, a search for an e-bike begins with sticker shock, especially if you don’t ride other bicycles. You can find budget electric bikes under $1,000, though models quickly get into the multiple thousands. Expect to find more powerful motors with more torque, larger batteries, and frames made of higher-quality, often lighter-weight materials as the price climbs. They’re like cars: You can find a reasonably priced, reliable model or spend serious bucks on high-end components, luxury features, and eye-grabbing designs. While the options may be daunting, there is a model out there to suit your tastes and budget, whether you’re looking for the best electric commuter bike or the best fat tire electric bike.
- - - -It’s also worth checking whether your state offers tax credits or rebates for e-bikes to encourage adoption.
- - - -E-bike classes help define how fast your bike can go with motor assist and where you’re legally allowed to ride. This matters a lot if you plan to ride on bike paths, public trails, or shared-use routes. However, the rules will vary from state to state and from locality to locality. Before buying, check your local laws because some states treat e-bikes like regular bikes, while others (like Alaska and New Mexico) regulate them more like mopeds. (Check out the non-profit advocacy group People for Bikes’ guide for state laws.)
- - - -To make this even muddier, many e-bikes allow the owners to change classes through the display or an app. This is usually called “unlocking,” but it’s a simple setting that lets you set a top speed of 20 or 28 miles per hour. Similarly, some e-bikes have throttles that can be enabled, disabled, or totally removed.
- - -| Class | How it works | Assist limit | What it means for you |
| Class 1 | Pedal-assist motor only | Stops assisting at 20 mph | Usually allowed on bike paths and trails |
| Class 2 | Throttle and pedal assist | Stops assisting at 20 mph | Throttle use may be restricted in some areas |
| Class 3 | Pedal-assist motor only | Stops assisting at 28 mph | Sometimes banned from shared-use paths and may have age and/or helmet rules |
Most folding e-bikes use hub motors, usually built into the rear wheel. They’re simple, affordable, and beginner-friendly. The power comes on smoothly—more like a steady push than a sudden surge—which makes them great for casual riders or flat city commutes.
- - - -Mid-drive motors, which sit at the cranks, are more efficient and offer better torque for climbing hills or hauling loads. They feel more like traditional cycling because they work with your gears. You’ll find them less often on folding bikes due to their cost and complexity, but if you do, it’s a premium upgrade.
- - - -Motor power is usually measured in watts, ranging from 250W to the legal U.S. max of 750W. More watts can mean more speed and stronger acceleration, but torque is what really helps with hill climbs and quick takeoffs. If you’re in a hilly area or want zippier starts, look for motors with high torque ratings.
- - - -Range is one of those features e-bike makers love to hype—and it’s getting better all the time. These days, even folding models often boast 60, 70, or even 85 miles on a single charge without needing a second battery. But actually hitting those numbers? That depends.
- - - -Published ranges usually list a minimum and a maximum, and the real-world number lives somewhere in between. Terrain, rider weight, cargo, temperature, tire pressure, and how hard you push the motor (pedal assist vs. throttle, low vs. max level) all make a difference. For example, my commute in the summer takes a quarter of my fully charged battery, but in extreme headwinds or freezing temps, it can easily eat up more than half of my battery. Same ride, same battery, different conditions. If your planned ride is 15 miles round-trip, don’t buy a bike with a 15-mile max and hope for the best—get something with some buffer.
- - - -Removable batteries are especially helpful for folding bikes. You can charge them inside, swap in a spare for long rides, or remove them for storage. Integrated batteries keep things sleek and tamper-resistant, but mean bringing the whole bike to an outlet. Bigger batteries weigh more, but they also give you more flexibility and less range anxiety.
- - - -One last thing: battery safety isn’t optional. Look for certifications like UL 2849 (entire system), UL 2271 (battery only), or EN 15194 (European standard). These show that the battery’s been tested against overheating, impact, and general misuse.
- - - -Folding e-bikes can be game-changers for commuters, but they come with a few trade-offs. They’re usually more expensive than non-electric bikes and heavier than standard folders. You’ll also need a place to charge—or look for a model with a removable battery you can charge indoors. Over time, batteries degrade and need to be replaced. And while most bike shops can service standard parts, proprietary systems or wiring may need brand-specific help. Folding frames also introduce additional wear points, such as hinges, latches, and clamps, which may loosen over time and with repeated use.
Yes. Many folding e-bikes advertise up to 40 to 80 miles of range, but real-world numbers depend on terrain, assist level, rider and cargo weight, and weather. If you ride mostly flat roads on low assist, your battery will stretch much farther than if you’re using throttle up steep hills. As for comfort, smaller wheels and minimal suspension mean you’ll feel more of the road, so “long distance” might come with more bumps.
Folding e-bikes generally weigh between 35 and 70 pounds. Lighter models made with carbon fiber or smaller motors can dip below 35, while more powerful or accessory-loaded models hit the upper end. They’re still easier to maneuver than traditional e-bikes thanks to their compact shape and smaller wheels—but lifting one into a trunk or up stairs? That’s where the real test comes in.
In most cities, yes. Transit systems usually allow folding bikes on board, especially if they’re compact and folded before boarding. Just be prepared to carry or roll it quickly, and avoid peak commute times if the bike takes up space. Always check local transit rules—some systems restrict e-bikes by weight, battery size, or class.
Folding electric bikes are a funny sort of transportation. They’re purpose-built to be easy to transport or store, which may mean some compromises in riding comfort. However, this category of bikes has come a long way, incorporating fatter tires, more suspension systems, and hydraulic brakes for superior stopping power, along with more options than ever before. Find the model that fits—literally—into your apartment, car, or commute, and enjoy the ride.
-The post The best folding electric bikes for 2026, tested and reviewed appeared first on Popular Science.
-]]>The post Black hole space volcano erupts after 100-million-year nap appeared first on Popular Science.
-]]>A black hole isn’t constantly devouring its unfortunate galactic neighbors. In fact, it can lay dormant for eons. But when one of these gargantuan entities finally reawakens, the resulting display isn’t only impressive—it illustrates the chaotic battle between its own cosmic forces and the pressures of the universe around it.
- - - -One of the most striking glimpses of such an event was recently captured by a team led by Shobha Kumari at India’s Midnapore City College. Supermassive black holes rarely emit magnetized, radio-emitting plasma, but according to Kumari, J1007+3540 is especially unique. After analyzing data collected by the Low Frequency Array (LOFAR) in the Netherlands and India’s Giant Meterwave Radio Telescope (uGMRT), researchers say there is undeniable evidence of multiple eruptions stretching deep into the universe’s past.
- - - -“It’s like watching a cosmic volcano erupt again after ages of calm—except this one is big enough to carve out structures stretching nearly a million light-years across space,” Kumari said in a statement.
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Radio imaging revealed a small, bright interior jet indicative of J1007+3540’s internal forces revving back up. But surrounding this illumination is an older layer of fading, distorted plasma from previous active eras.
- - - -“This dramatic layering of young jets inside older, exhausted lobes is the signature of an episodic [active galactic nucleus]—a galaxy whose central engine keeps turning on and off over cosmic timescales,” added Kumari.
- - - -The supermassive black hole’s forces are unfathomably strong, but the influences of the giant galaxy cluster around it can’t be ignored either. The surrounding plumes of incredibly hot gas exert their own pressure, in this case even higher than most other radio galaxies. These cosmic regions then mangle and distort J1007+3540’s plasma jets as they race outward. For example, LOFAR’s imaging depicts a compressed northern lobe that is curving to one side due to the galactic gas. Complimentary data from uGMRT reveals a very steep radio spectrum indicative of old, weakened plasma particles.
- - - -“J1007+3540 is one of the clearest and most spectacular examples of episodic AGN with jet-cluster interaction, where the surrounding hot gas bends, compresses, and distorts the jets,” added Surajit Paul, a study coauthor and astronomer at the Manipal Center for Natural Sciences in India.
- - - -Moving forward, Kumari, Paul, and their collaborators hope to employ higher-resolution equipment to peer into J1007+3540’s core. In doing so, researchers can better chart how the black hole’s reignited jets travel through the galaxy cluster, as well as how often such events actually occur.
-The post Black hole space volcano erupts after 100-million-year nap appeared first on Popular Science.
-]]>The post Congress trying to make it easier to unsubscribe (again) appeared first on Popular Science.
-]]>“Subscription traps have become an accepted inconvenience for American consumers. Too many companies rely on deceptive business models that force people to jump through hoops just to cancel,” Representative Amodei said in a joint statement. “We all live busy lives, and remembering to cancel after a free trial shouldn’t be another item on the to-do list.”
- - - -Surprise subscription renewal fees are difficult enough to track in everyday life, but passing legislation to rein in the costly annual expenditures seems even harder to accomplish. After years of bipartisan lobbying efforts, the Federal Trade Commission (FTC) finally announced a “click-to-cancel” rule in 2023. However, courts nullified the FTC ruling on a technicality in July 2025–just days before it was set to go into effect. Since then, the fight has continued to fix a broken system that regularly costs households as much as $200 a year in sneaky, unwanted subscriptions.
- - - -“During a time when everything is more expensive, corporations are cashing in subscription models that rely on a consumer forgetting to cancel a free trial,” Rep. Takano added. “Corporations haven’t put into place commonsense reforms like ending a subscription just as easily as signing up for one.”
- - - -If enacted, the new law would require all companies to receive explicit opt-in confirmations from customers before charging them full price after the end of a free or discount-rate trial. The sign-up process must also “clearly and conspicuously” explain subscription terms, and make it as easy to cancel as it was to initially enroll.
- - - -As The Guardian first reported on January 13,, Rep. Takano has regularly advocated for similar legislative action since 2017. His most recent attempt in 2021 only garnered Democratic support in the House, although a companion Senate bill has had bipartisan backing for years.
- - - -So far under the Trump administration, the FTC has selectively enforced certain subscription fee-related actions, such as a $7.5 million settlement with the ed-tech company Chegg in September 2025. Comprehensive reforms have yet to materialize, however. The FTC quietly published a consumer group-led click-to-cancel petition in December 2025, and accepted public comments on it until January 2, 2026.
- - - -With the Unsubscribe Act, legislators hope to bypass the ongoing regulatory hold-up.“This time…there’s interest across the aisle,” explained Rep. Takano.
-The post Congress trying to make it easier to unsubscribe (again) appeared first on Popular Science.
-]]>The post Mummified cheetahs could help save the critically endangered big cats appeared first on Popular Science.
-]]>Cheetahs once lived in much of Africa, and Western and Southern Asia, but their range in Asia has decreased by 98 percent over the past several thousand years. As a whole, cheetahs only occupy nine percent of the territory they used to. On the Arabian Peninsula (Saudi Arabia, Yemen, Oman, United Arab Emirates, Qatar, Bahrain, and Kuwait) cheetahs were found as recently as 1977, when a hunter in Oman killed an adult female cheetah. However, the animals are now considered locally extinct in the region. There are five cheetah subspecies, and the Asiatic cheetah (Acinonyx jubatus venaticus) is believed to have been the only subspecies that lived in present-day Saudi Arabia. The Asiatic cheetah is currently considered critically endangered, with only one small wild population remaining in Iran. Whether or not cheetahs could be reintroduced in the area is debated, largely due to continued habitat destruction.
- - - -During digs in five caves in 2022 and 2023, field biologist Ahmed Boug from Saudi Arabia’s National Center for Wildlife and his team uncovered skeletal remains of 54 other cats and seven naturally-mummified cheetahs. In desert regions, natural mummification is common due to the dry conditions where fungi and bacteria can’t thrive on a decomposing corpse. Deserts also have the right mineral content in the sand for preservation.
- - - - -The oldest of the cat skeletal remains date back about 4,000 years ago. The mummified cheetah remains were much younger—ranging from only 130 to 1,870 years ago.
- - - -They also extracted complete genome sequences from three of the seven mummified cheetahs. According to the team, this is the first time that this kind of genetic material extraction has been done on naturally-mummified big cats. While the most recent specimen is genetically closest to the Asiatic cheetah, the two older specimens are more similar to the Northwest African cheetah (Acinonyx jubatus hecki). This critically endangered species is found in the Sahara and several countries in northwestern Africa.
- - - -
The authors say that their results indicate that cheetah subspecies could support the re-establishment of cheetahs in Saudi Arabia. An increased available genetic pool from other subspecies would make rewilding efforts more feasible, as subspecies can generally interbreed and create fertile offspring that further the population. The team also suggests that their method shows that ancient DNA records from similar specimens can inform future reintroduction plans for other endangered species.
The post Mummified cheetahs could help save the critically endangered big cats appeared first on Popular Science.
-]]>The post Amazon has just about every Anker docking station, power bank, and portable power station on sale right now appeared first on Popular Science.
-]]>If your laptop is doing its best impression of a desktop every day, this is the kind of dock that makes the whole setup feel intentional. You get a ton of ports in one box, dual 4K monitor support, and up to 160W of power delivery so you can park your laptop, plug in, and stop juggling dongles.
- - - - -This is the move for people who are fully integrated into the Apple ecosystem. It’s a 3-in-1 stand that does Qi2 wireless charging (up to 25W) plus spots for your earbuds and watch. It’s the sort of thing that makes nightly charging feel less like a scavenger hunt.
- - - - -For outages, tailgates, or job sites, a big power station is basically a silent generator you can lug anywhere. The SOLIX F2000 has a huge 2,048Wh-class battery and enough output to run appliances and tools then recharge your smaller gadgets on top. This is one of the steepest discounts in the list, so it’s worth a look if you’ve been waiting for a real price drop.
- - - -The post Amazon has just about every Anker docking station, power bank, and portable power station on sale right now appeared first on Popular Science.
-]]>The post Anker Prime Power Bank (20K, 200W) review: Plenty of power for laptops and more appeared first on Popular Science.
-]]>The Anker Prime 20K is roughly the size of one of those skinny Diet Coke cans, but it’s a squared-off soda can with real heft. It measures 1.73 × 1.99 × 5.79 inches and weighs 1.12 lbs (510 g), which makes it easy to stash in a backpack or camera bag—and a little silly to carry in a jacket pocket unless you’re committed.
- - - -Build quality is a standout. It’s a dense block of hardware rather than a hollow plastic shell, which matters when you’re throwing it into bags, bouncing between locations, or generally living the clumsy reality of travel.
- - - -Anker’s display is also genuinely helpful. Instead of the old system of four mystery LEDs, you get clear readouts for charge level, real-time wattage in/out, and time-to-empty or time-to-full estimates. When you’re trying to decide whether you have enough juice for a flight, a shoot, or a long coffee shop session, that kind of clarity is the difference between guessing and knowing. The shiny surface on the front of the device does pick up smudges and fingerprints easily, but that doesn’t matter much to me.
- - - -Port layout is straightforward and practical: two USB-C ports and one USB-A across the top. In day-to-day use, I found it easier to lay it flat with the screen facing up so it’s less likely to tip if a stiff cable gets bumped.
- - - -In the several weeks I spent with this device, I used it to fuel my 14-inch MacBook Pro with an M3 Max chip inside. I also used it to charge an iPhone 17 Pro Max, a DJI drone, a Canon R5 Mark II camera, and other devices. In each case, I was able to hit maximum charging speeds with each device and even keep up with the MacBook Pro output during high-intensity tasks like exporting files from Adobe Lightroom.
- - - -You can absolutely buy the battery by itself and be happy. The main story here is that it refills fast enough (up to 100W input) that it’s easy to keep topped off between sessions—plug it in while you eat lunch, and you’ll get a meaningful chunk of capacity back.
- - - -If you want a cleaner workflow that’s always ready, Anker also sells a separate $99 charging base that uses pogo pins and charges the bank at the same 100W rate. It’s not required, but if this power bank is part of your daily desk kit, docking it like a gadget from the future is undeniably convenient.
- - - -The “220W” in the name is the combined ceiling across ports. In practical terms, it means you can run a laptop at serious speed and still charge other devices without everything collapsing into “slow charge” mode.
- - - -Thermals are solid, too. High-wattage power banks often get uncomfortably warm when they’re actually delivering big power for long stretches. This one stayed surprisingly composed during sustained use, which inspires more confidence than raw spec-sheet bragging ever could. It felt noticeably warm to the touch when it was charging up its own internal batteries, but it never got hot.
- - - -The companion app is a nice touch, but I didn’t find myself using it all that often during normal use. The built-in screen typically told me what I needed to know.
- - - -At this price point, I would have liked an integrated cable and possibly wireless charging as it requires a separate cable to input and output power. That’s not super common with models in this class, so it’s not a point against this model, but both features would have been welcome.
- - - -The Anker Prime 20K sits in a sweet spot: smaller and lighter than the max-capacity carry-on limit bricks, but far more capable than the average travel power bank.
- - -| Feature | Anker Prime 20K (220W) | EcoFlow RAPID Pro (27,650mAh) | Shargeek Storm 2 | Anker 737 (24K, 140W) |
|---|---|---|---|---|
| Capacity | 20,100mAh (~72Wh) | 27,650mAh (99.54Wh) | 25,600mAh (93.5Wh) | 24,000mAh |
| Max Output | 220W total (140W single USB-C) | 300W total (up to 140W single) | 100W (single-port fast charge class) | 140W max total |
| Max Input | 100W | 320W (with matching station) | 100W in/out | 140W two-way charging class |
| Ports | 2× USB-C, 1× USB-A | 4 total (incl. built-in retractable USB-C cable) | USB-C + USB-A + DC + more | 2× USB-C, 1× USB-A |
| Weight | 1.12 lb (510g) | 699.4g | 591.3g | 630g |
| Unique Feature | Optional pogo-pin charging base + strong on-device display | Built-in retractable cable + modular accessories | “Gadget-core” transparent design + DC output | More affordable entry to 140W-class charging |
| Category | Specification |
|---|---|
| Model | Anker Prime Power Bank (20K, 220W) |
| Capacity | 20,100mAh (~72Wh) Carry-on compliant under 100Wh |
| Ports | 2× USB-C, 1× USB-A |
| Single USB-C Max | Up to 140W |
| Combined Max Output | Up to 220W total |
| Recharge Speed | Up to 100W (USB-C) / Up to 100W (charging base) |
| Connectivity | Bluetooth (Anker app) |
| Dimensions | 1.73 × 1.99 × 5.79 inches |
| Weight | 1.12 lb (510g) |
If you’re truly a power user—or you just have a laptop that laughs at most power banks—this Anker Prime makes a compelling case. The headline isn’t just big number wattage. It’s that the wattage shows up in real use: no slow-charger warnings, no weird throttling, and no all-night recharge penalty once you’ve drained it.
- - - -If you only need to charge a phone, this is unnecessary weight and money. But for photographers, frequent travelers, and anyone trying to keep a MacBook and a few other devices alive away from the wall, the Prime 20K feels like the first power bank that actually behaves like it belongs in a modern USB-C workflow.
-The post Anker Prime Power Bank (20K, 200W) review: Plenty of power for laptops and more appeared first on Popular Science.
-]]>The post Is turbulence really like Jello-O? Pilots weigh in. appeared first on Popular Science.
-]]>“That is you flying through the sky,” she tells the camera. “There’s pressure from the bottom, pressure from the top, from the sides, pressure coming from everywhere.”
- - - -She taps the top of the Jell-O, making the suspended napkin ball quiver.
- - - -“This is what happens when there’s turbulence,” she says. “You feel the plane shaking, but [it] is not just going to fall down.”
- - - -The video is by Australian TikToker Anna Paul. Just days after she uploaded it in June 2022, it had accumulated more than 15 million views and thousands of comments from people saying it had cured their fear of flying. Paul says she got the tip “from a real pilot.”
- - - -But how accurate is the analogy? Is turbulence really like Jell-O?
- - - - -The Jell-O analogy is the brainchild of former airline captain Tom Bunn, who is now a licensed therapist and founder of the SOAR program, which helps people overcome their fear of flying. Over years of listening to clients express their worries, Bunn realized that explaining the science of flight was often not enough to reassure people that flying was truly safe.
- - - -“Clients would say they look up in the sky and see a plane and it doesn’t look like it should be there,” he says. “It should fall because they don’t see anything holding it up.”
- - - -Because these nervous flyers lacked understanding of the forces holding a plane in the air, they would feel the jolts during turbulence and panic, imagining the plane was about to drop from the sky. To help them overcome this fear, Bunn looked for an analogy that would convince the emotional part of their brains that the plane was not going to fall.
- - - -He found it by asking them to recall the familiar sense of air resistance growing as speed increases.
- - - -“If you walk across the room, air doesn’t slow you down,” he says. However, “if you’re in a car and push forward with your hand out the window, it feels about the same as putting your hand in a swimming pool and pushing against the water.”
- - - -Appealing to this logic, Bunn would ask his clients to imagine the air getting thicker as the plane accelerated down the runway. By the time they were in the air, it was the consistency of Jell-O, supporting them on all sides.
- - - -Bunn acknowledges that the analogy is not completely accurate scientifically. But it is an emotionally resonant way of visualizing the forces that hold a plane up during flight.
- - - -“Technically, it involves Bernoulli’s theorem,” he says. “It has to do with the fact that the bottom of the wing is pretty much flat and the top is curved.”
- - - -
Daniel Bernoulli was an 18th-century Swiss mathematician and physicist who formulated several key concepts in fluid dynamics. The most famous is Bernoulli’s principle, which states that an increase in the speed of a fluid decreases the pressure exerted by the fluid.
- - - -In a river, for example, water speeds up as it passes through narrower sections. The water pressure is lower in these constricted areas, as the acceleration is caused by higher pressure behind the constriction than within it.
- - - -Air behaves much like a fluid. When it encounters an obstacle, it compresses or speeds up as it flows around the object in its path.
- - - -“When the plane runs into the air, the air that goes across the top of the wing has to catch up,” Bunn explains. Because of the curve on the wing’s top, the air “has to take a longer route, so the molecules spread out slightly. So, they don’t push as much on the top of the wing as on the bottom.”
- - - -As Paul says in her TikTok video, there is pressure coming from the air above and below the airplane. But the wing’s design means that the air pressure is greater below it than in the faster-moving air above it, pushing the wing upwards. This is the phenomenon known in aerodynamics as “lift.”
- - - -“The faster you go, the more powerful the Bernoulli effect,” Bunn explains. This is why, as a plane flies through the air at nearly 600 miles an hour, the pressure under the wings holds it in the sky as securely as a napkin ball in Jell-O.
- - - -Turbulence happens when blocks of air rub past each other at different temperatures, pressures or speeds. It can have many different causes, from thunderstorms to the centrifugal force of the earth’s rotation, which pushes bands of air outwards. Its strength ranges from mild, causing little more discomfort than a slight trembling, to severe, in which passengers or flight crew can be thrown around the cabin and risk injury if not wearing seatbelts.
- - -But while strong turbulence can feel alarming, Patrick Smith, a commercial pilot and writer of the Ask the Pilot blog, says that “people tend to have a very exaggerated sense of what the airplane is actually doing.”
- - - -“Airplanes have what we call positive stability,” he says. “When they’re disturbed from their position in space, by their nature they want to return to where they were.”
- - - -During turbulence, every jolt down is matched by an equivalent jolt up, holding the plane steady on its course—as if it were suspended in Jell-O.
- - - -“There has never been a plane crash from turbulence,” Paul says in her video. Is this true?
- - - -Bunn recalls one incident in the 1960s when a flight departing Japan’s Tokyo airport encountered severe turbulence off the side of Mount Fuji, causing it to suffer structural damage and crash into a forest. But, he emphasizes, such an incident would never happen today. For one, commercial jets would never fly so close to a mountain, knowing that these can disrupt air flows and cause strong forms of turbulence close to solid ground, where planes are naturally most vulnerable.
- - - -For another, improvements in airplane technology mean that planes are now much better constructed to withstand even the strongest forms of turbulence.
- - - -During testing of modern airliners, “you can almost bend the wing double [in half] and it won’t break,” Bunn says. In real situations, “you never see even a tenth that much wing flex.”
- - - -So, is turbulence really like Jell-O? Not exactly. But if you’re a nervous flyer, perhaps the image can help reassure you that the only real dangers from turbulence can be solved by simply wearing a seatbelt.
- - - -As Paul says: “You can just chill there. You’re just wriggling in jelly.”
- - - -In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
- - - - -The post Is turbulence really like Jello-O? Pilots weigh in. appeared first on Popular Science.
-]]>The post Wikipedia’s 25 most popular entries of all time appeared first on Popular Science.
-]]>January 15th marks the 25th anniversary of Wikipedia’s premiere, and the digital landscape around it is nearly unrecognizable. After two-and-a-half decades, the free encyclopedia encompasses over 7.1 million entries in English alone, most still written, edited, fact-checked, and maintained by tens of thousands of volunteers around the world. There are still plenty of issues with a website that runs under those parameters, but more often than not, a Wiki entry can serve as a starting point towards finding other helpful sources.
- - - -But what are most Wikipedia visitors interested in learning about? The website’s parent organization, the Wikimedia Foundation, provided Popular Science with a list of the top 25 most searched Wikipedia subjects of all time. While the Wikimedia Foundation says its data only goes back to 2008, it’s safe to say these remain the highest trafficked topics across the millions of entries.
- - -| Subject | Page Views |
| 1. List of Deaths by Year | 647,025,321 |
| 2. United States | 328,501,200 |
| 3. Donald Trump | 325,397,973 |
| 4. Elizabeth II | 253,385,102 |
| 5. India | 210,779,909 |
| 6. Cristiano Renaldo | 209,262,818 |
| 7. Barack Obama | 200,619,072 |
| 8. Elon Musk | 197,557,694 |
| 9. World War II | 196,185,039 |
| 10. United Kingdom | 180,986,829 |
| 11. Lionel Messi | 169,027,752 |
| 12. Michael Jackson | 168,519,508 |
| 13. Game of Thrones | 166,648,136 |
| 14. Adolf Hitler | 163,955,099 |
| 15. Eminem | 159,866,098 |
| 16. Taylor Swift | 157,243,638 |
| 17. World War I | 156,010,435 |
| 18. The Beatles | 153,857,741 |
| 19. Dwayne Johnson | 141,840,884 |
| 20. List of presidents of the United States | 138,880,465 |
| 21. Canada | 137,871,236 |
| 22. Lady Gaga | 137,724,118 |
| 23. Academy Awards | 137,543,219 |
| 24. Freddie Mercury | 134,515,769 |
| 25. List of highest-grossing films | 133,992,783 |
As it turns out, a lot of people wonder who died recently. Perhaps unsurprisingly, the list is mostly a mix of politics, pop culture, sports, and history—but it’s still more than enough to get you up to speed for your next trivia night.
- - - -As AI slop continues to flood search engines and generative media blurs the lines between reality and fiction, human-centric endeavors like Wikipedia are becoming increasingly critical for staying informed on everything from biomedical research and historical events, to…the Fraternal Order of Real Bearded Santas.
- - - -Wikipedia still faces its fair share of critics, some with very valid issues. Instead of a lack of sources, certain detractors are now claiming (without much evidence) that the encyclopedia is filled with supposed political biases. But as Wikipedia has shown so far, it’s probably up to the task of proving the naysayers wrong. There’s even a well-sourced entry about it.
-The post Wikipedia’s 25 most popular entries of all time appeared first on Popular Science.
-]]>The post Without forests, mosquitoes turn to human blood appeared first on Popular Science.
-]]>Dr. Sérgio Lisboa Machado, a microbiologist from the Universidade Federal do Rio de Janeiro in Brazil, is the co-author of a study published today in the journal Frontiers in Ecology and Evolution on a potential link between deforestation and mosquitoes’ increasing preference for human blood.
- - - -In the study, Machado and his colleague Dr. Jeronimo Alencar examined the feeding habits of several mosquito species in the Atlantic Forest, a moist broadleaf forest that stretches along the eastern coast of South America.
- - - -According to Machado, the project began as an attempt to figure out which local animals these mosquitoes were feeding on.
- - - -“When we started our research, our main goal was to find the preferred blood source that some species of female mosquitoes use for reproduction,” Machado tells Popular Science
- - - -The process of identifying the blood in the creatures’ stomachs was time-consuming. The first step was identifying which of the region’s roughly 40 mosquito species were biting. This involved careful scrutiny of the creatures with a stereoscope.
- - - -“The identification itself is not complicated,” Machado says, “but there is a shortage of entomologists to perform it.”
- - - -This fact, along with the need to transport the mosquitoes back to Rio de Janeiro for analysis, meant by the time the samples were analyzed, the DNA and RNA inside of them had started to break down. Even with these difficulties, the analysis provided Machado with a pretty good idea of which mammal species the mosquitoes in question preferred for dinner. In several cases, this blood was human.
- - - -“This was something we didn’t expect,” Machado says. “Since we were in a forest reserve, we expected to find DNA from vertebrates in the local fauna.”
- - -So why so much human blood? The researchers hypothesize that the Atlantic Forest’s changing environment has led these species to develop a taste for human blood.
- - - -“We believe it’s a matter of opportunity given the lack of a preferred food source,” Machado says. “It seems that if mosquitoes can’t find their preferred blood source, they seek out whatever is available.”
- - - -As biodiversity declines and animal species go extinct, more mosquito food sources are disappearing. However, unlike many of the animals on which they feed, mosquitoes are adaptable creatures. There’s almost always a ready-made alternative, including humans.
- - - -While this might be good news for the mosquitoes, it risks being terrible news for humans. As an increasing number of mosquito species develop a taste for humans, so too does the risk that species which have not been particularly problematic in the past could act as new vectors for blood-borne diseases.
- - - -Once mosquitoes acquire a new food source, they tend to develop a preference for that particular blood—and humans are one species whose availability is most definitely not declining. Today, the Atlantic Forest occupies barely a quarter third of its former area, and it’s not alone. With every passing year, more wilderness is lost to human incursion.
- - - -The answer seems to be first arresting, and then reversing, this process of deforestation and habitat destruction. But it’s not altogether clear that the damage is so easily reversible. Humans certainly aren’t going anywhere, so who’s to say that the mosquitoes won’t just keep feeding merrily on us regardless?
- - - -Machado expresses cautious optimism on how we can address how deforestation affects what mosquitoes eat.
- - - -“We believe this is a reversible process, but this will require restoring the biome while simultaneously continuing our study. We are still seeking more evidence that [these] mosquitoes have a preferred food source. For now, we are observing that there is a possibility that they are adapting to different sources and do not [prefer] human blood.”
- - - -Nevertheless, humanity continues to play with fire as it pushes further and further into previously unspoilt ecosystems. A landmark 2001 study found that new diseases are twice as likely to be zoonotic—transmissible between animals and humans—than existing ones. The danger posed by such diseases was exemplified by COVID-19, which jumped from bats to humans to catastrophic effect.
- - - -While disastrous scenarios surrounding a novel pathogen spread by mosquitoes are hypothetical, there are also very real dangers linked to deforestation. For instance, the malaria parasite in the Amazon is largely spread by the Anopheles darlingi mosquito. It was thought to have been eradicated in the 1960s, but re-emerged in the 1990s, and is now common. Another study found that cleared forest patches had created a perfect breeding environment for the insect, helping its return.
- - - -Ultimately, Machado stresses that it’s important to control the emergence of new disease vectors and thus mitigate further risks.
- - - -“The re-establishment of ecosystems will certainly contribute to this and should minimize the climate changes we are experiencing,” he says. “We need to learn that our actions today, however small, will always have global repercussions in the future.”
-The post Without forests, mosquitoes turn to human blood appeared first on Popular Science.
-]]>The post Australian police smash e-bikes in crackdown on unruly teens appeared first on Popular Science.
-]]>The roundup, dubbed Operation Moorhead, began last week in the suburbs of Perth in southwestern Australia. Police reportedly received complaints about menacing youths riding recklessly, evading officers, and “intimidating members of the public.”
- - - -In some cases, the teens hurled objects at other vehicles and posted videos of their pranks on social media. One of those clips reportedly shows a 12-year-old zipping by on an e-bike capable of reaching speeds approaching 50 miles per hour. The ensuing crackdown led to the arrests of 25 youths between the ages of 11 and 18 and the seizure of 36 e-rideables. Western Australia (WA) police are now reportedly planning to ramp up e-bike seizures across the state.
- - - -A video posted on Facebook by Western Australian police shows several seized e-bikes and electric scooters being grabbed by an excavator’s claw and crushed flat. The claw then releases the broken bikes and pounds them down once more for good measure. What remains of the mangled metal is then chucked into a large pile of scrap.
- - - -“WA police will not tolerate anti-social behaviour that targets our community,” Joondalup police Acting Inspector Scott Gillis said during the press release. “It’s totally unacceptable.”
- - - - -E-bikes, electric scooters, and other micromobility devices have surged in popularity as a convenient, easy way to navigate cities that lack reliable public transportation. But their relatively high maximum speeds—compared with traditional bicycles—have also led to a major uptick in accidents and sparked backlash from critics who argue they should be treated and regulated more like motorcycles.
- - - -Micromobility-related injuries are also on the rise, and not just Down Under. A 2024 U.S. A Consumer Product Safety Commission (CPSC) survey found injuries, both for riders and pedestrians, involving the devices increased nearly 21 percent between 2021 and 2022. A separate study published in the American Journal of Public Health estimates e-bike and scooter injuries increased by a staggering 293 percent and 88 percent respectively between 2019 and 2022. That data notably doesn’t specify how many of the injuries involved rampaging teens.
- - - -
Local governments in the U.S. are beginning to pass new laws aimed at reining in potentially dangerous riders. Last month, Houston’s City Council voted unanimously to approve an ordinance putting in place a curfew that restricts e-scooter use between 8 p.m. and 4 a.m. South Carolina also recently enacted a law allowing police to fine e-bike riders up to $500 if they are caught pushing the devices past 12 miles per hour. Police in New York City have likewise increased penalties for e-bike–related offenses, a move some critics fear could disproportionately target delivery drivers who have embraced the devices.
- - - -Back in Australia, Willis says part of the problem, at least when it comes to teens, stems from the vehicles’ deceptive appearance. Parents unfamiliar with modern advances in e-rideable technology buy their children bikes and scooters without realizing they are capable of reaching such high speeds. They are also often unaware of laws already on the books that restrict where and how the devices can be used.
- - - -“We would like to remind the community that e-rideables are a type of vehicle so all road laws that apply to vehicles apply to e-rideable as well, unless expressly excluded.”
-The post Australian police smash e-bikes in crackdown on unruly teens appeared first on Popular Science.
-]]>The post Deer markings actually glow appeared first on Popular Science.
-]]>The woodland mammals appear to be using UV as a way of communicating. Their scrapes—markings they make in the dirt or on wood and fill with secretions—glow under UV light that they can see and we can’t. The same goes for their rubbings, or the secretion-filled marks their antlers make on trees and fence posts. According to the findings published in the journal Ecology & Evolution, the photoluminescence is potentially a way for the mammals to find a mate.
- - - -“People have been hypothesizing about if this glow exists in the environment, but nobody had gone out yet to try and connect it to the deer until now,” Daniel DeRose-Broeckert, a study co-author and ecologist at the University of Georgia’s Deer Lab, said in a statement. “As we got closer to breeding season, those markings increased in visibility as deer prepared for it.”
- - - -Over three months, the Deer Lab team searched for white-tailed deer markings in Whitehall Forest near Athens, Georgia, during the day. By night, they investigated them with UV lights. They analyzed 109 antler rubs on trees and 37 urine-marked acres across 800 acres of forest.
- - - -
“Their vision is vastly different from ours. Once the sun is slightly gone around dusk and dawn, the UV light dominates for deer since it’s not being washed out by the visible light spectrum from the sun,” said DeRose-Broeckert.
- - - -The team believes that rubs’ glow may be made from a combination of plant and tree sap and secretions from the animal’s forehead glands. The scrapes’ glow is likely from urine.
- - - -“In the process of scraping the bark off a tree with their antlers, they are depositing glandular secretions. Likewise, when they make a scrape, a different gland is also between their toes,” added study co-author and ecologist Gino D’Angelo. “Deer have lots of ways to interact with the environment, and they are leaving those signatures out there to smell and glow.”
- - - -
Earlier studies suggest that other mammals also glow under UV light, but the reasons why have been vague. Deer use the same scrapes as a way to communicate through scent, so the team on this study believes that the glow offers a visual way for deer to communicate
- - - -“The scrapes become a communication hub where other deer will visit it after it’s created and contribute to it. It’s like a phone booth out in the city when trying to make nighttime plans at a meeting point,” D’Angelo said.
- - - -During deer mating season from mid-October through December, marking is particularly important.
- - - -“We’ve known that there’s an olfactory component, but now we know the deer are also getting stimulated in two senses, both olfactory and visually,” said DeRose-Broeckert. “Both males and females utilize scrapes to advertise their presence in the environment and their breeding status and fitness level.”
-The post Deer markings actually glow appeared first on Popular Science.
-]]>The post Iron Age teeth reveal the hidden lives of ancient Italians appeared first on Popular Science.
-]]>In Italy, a team at Rome’s Sapienza University has conducted the first dental study of its kind for an Iron Age community 35 miles south of present-day Naples. After analyzing the microscopic makeup of teeth from ancient Italians, it appears that the people living near Pontecagnano enjoyed a diverse diet that reflected a time of increased interactions with nearby Mediterranean societies. Their findings are detailed in a study published today in the journal PLOS One.
- - - -Archaeological records at Pontecagnano span multiple cultures and date as far back as the Copper Age (3500–2300 BCE). By the 7th century, the region was home to the Etruscans, who occupied the area until the Roman Empire’s arrival in the late 4th century. The Etruscans often interred their deceased in necropolises, which is where the Sapienza University team recovered 30 teeth from 10 individuals who died during the 7th and 6th centuries.
- - - -“The teeth of Pontecagnano’s Iron Age inhabitants opened a unique window onto their lives: we could follow childhood growth and health with remarkable precision,” study co-author and archaeologist Roberto Germano said in a statement.
- - - -They analyzed the growth patterns displayed in dental tissues, and then compared the resultant data between canines and molars to contextualize the first six years of each person’s life. This revealed minor stress events linked to dietary shifts, often between the ages of one and four. According to researchers, the changing sources of nutrition likely made the young children susceptible to diseases, which left lingering evidence in their teeth.
- - - -However, their diets were incredibly diversified by the time of adulthood. Dental plaque examinations showed remnants from an array of foods, including legumes and cereals as well as “abundant carbohydrates and fermented foods.” These chemical traces are supported by the existing historical understanding of the era, which featured increased trade with other societies around the Mediterranean.
- - - -The team believes that their approach represents a proof-of-concept for using dental analysis to offer personalized insights into the individual lives of ancient peoples. While not intended as findings representative of the larger Etruscan region, the analysis illustrates a more intimate look at Iron Age existence.
- - - -“The study…makes it possible to go beyond the narrow focus on the period close to their death, and brings to the forefront the life of each of them during their early years,” explained study co-author Alessia Nava.
-The post Iron Age teeth reveal the hidden lives of ancient Italians appeared first on Popular Science.
-]]>The post 100 mystery sounds under review for signs of extraterrestrial life appeared first on Popular Science.
-]]>Even with today’s advanced computers, the world’s most complex data problems can’t be solved by a single machine. Instead, it’s far more efficient to break up tasks among many separate computers. For decades, however, the technology to handle even these distributed responsibilities was relegated to well-funded companies and government institutions. But with the rise of personal computers (PCs), UC Berkeley researchers like David Gedye and David Anderson realized that the untapped pool of citizen scientists could be a vital asset. And what bigger data pool was there to draw from than the vastness of interstellar space?
- - - -In 1999, the computer scientists teamed with astronomers Eric Korpela and Dan Werthimer to launch SETI@home. The project relied on individuals downloading a client program to their home PC designed to parse data passively collected by a 984-foot-wide radio telescope at the now-shuttered Arecibo Observatory in Puerto Rico. Although Arecibo’s line of sight only encompassed about a third of the entire sky, that still included most stars in the Milky Way galaxy.
- - - -“We [were], without doubt, the most sensitive narrow-band search of large portions of the sky, so we had the best chance of finding something,” Korpela said in a recent UC Berkeley profile.
- - - -Before launching SETI@home, project organizers estimated they’d receive around 50,000 volunteers. In only a few days, they surpassed 200,000 participants from over 100 countries. By the program’s one-year anniversary, the SETI@home client had been downloaded onto over 2 million PCs.
- - - -
The data itself wasn’t collected by simply aiming Arecibo at a section of space and listening for ET whisperings. Earth is constantly moving around the sun, and the same likely goes for any source of alien life. This required Korpela and colleagues to design a protocol to mathematically reconfigure frequency clips to account for any Doppler drifts.
- - - -“We actually had to look at a whole range of possible drift rates—tens of thousands—just to make sure that we got all possibilities. That multiplies the amount of computing power we need by 10,000,” said Anderson. “The fact that we had a million home computers available to us let us do that. No other radio SETI project has been able to do that.”
- - - -By the time SETI@home officially ended in 2020, the team was staring down around 12 billion signals of interest. Combing through those files ultimately required enlisting the help of a supercomputer—in this case an installation at Germany’s Max Planck Institute for Gravitational Physics. From there, researchers could winnow down their suspects to a couple million signals, then rank them by likelihood of ET origin after accounting for radio frequency interferences from sources like orbital satellites, TV broadcasts, and even kitchen microwaves.
- - - -Korpela and Werthimer eventually settled on about 100 final contenders worth additional examinations. Since July 2025, they have used China’s Five-hundred-meter Aperture Spherical Telescope (FAST) to collect new data from these sections of sky. The approach was detailed in two studies published last year in The Astronomical Journal, and showcases both the project’s highlights and places where future endeavors can improve on their work.
- - - -“Some of our conclusions are that the project didn’t completely work the way we thought it was going to. And we have a long list of things that we would have done differently and that future sky survey projects should do differently,” explained Anderson. “[But] if we don’t find ET, what we can say is that we established a new sensitivity level. If there were a signal above a certain power, we would have found it.”
- - - -However, Anderson and the others aren’t holding their breath. According to Korpela, Arecibo’s limited field-of-view and a lack of any particularly striking radio blips so far means a sudden ET revelation isn’t likely just yet.
- - - -“There’s a little disappointment that we didn’t see anything,” he said. “In order to probe farther distances, you need bigger telescopes and longer observing times. It’s always best if you are able to control the telescope for your project. We weren’t able to control what the telescope was doing.”
- - - -Regardless, SETI@home speaks to the power of both crowdsourcing and citizen science. When combined with all of the PC advancements since 1999, there’s a chance that an heir to the project may finally find that extraordinary, history-altering space signal.
- - - -“I think it still captures people’s imagination to look for extraterrestrial intelligence,” said Korpella. “I think that you could still get significantly more processing power than we used for SETI@home and process more data because of a wider internet bandwidth.”
-The post 100 mystery sounds under review for signs of extraterrestrial life appeared first on Popular Science.
-]]>The post 14,000-year-old woolly rhinoceros DNA extracted from wolf’s stomach appeared first on Popular Science.
-]]>“Sequencing the entire genome of an Ice Age animal found in the stomach of another animal has never been done before,” Camilo Chacón-Duque, a study co-author and paleogenomicist at Stockholm University in Sweden, said in a statement. “Recovering genomes from individuals that lived right before extinction is challenging, but it can provide important clues on what caused the species to disappear, which may also be relevant for the conservation of endangered species today,” he said.
- - - -
The woolly rhino lived from 5.3 million to about 8,700 years so in present-day Europe, North Africa, and Asia. The large mammals had two large horns towards the front of the skull, and a thick coat of hair. Stone Age painters frequently included the woolly rhino in their work, including on cave paintings in France’s Chauvet–Pont d’Arc dating back about 30,000 years.
- - - -The woolly rhinoceros DNA found inside of the ice age wolf was discovered in permafrost near the village of Tumat in Siberia. When scientists performed an autopsy on the ancient wolf, they identified a small fragment of preserved woolly rhino tissue inside of its stomach. Radiocarbon dating indicated that the tissue was about 14,400 years old, making it one of the youngest specimens of woolly rhinoceros ever discovered.
- - - -
Since genetic material degrades over time, mapping the genome of animals like these that died thousands of years ago is incredibly difficult. The wolf’s own DNA also further complicates the analyses.
- - - -“It was really exciting, but also very challenging, to extract a complete genome from such an unusual sample,” added Sólveig Guðjónsdóttir, a study co-lead author, who carried out the work as part of her master’s thesis at Stockholm University.
- - - -To get a sense of how genome diversity, inbreeding levels, and harmful mutations changed throughout the last ice age, the team then compared the Tumat rhinoceros’ genome with two other high-quality genomes from older specimens. Both of these specimens were older, dating back to about 18,000 and 49,000 years ago.
- - - -They did not find any signs of genetic deterioration due to a lack of suitable mates as the woolly rhinos approached its extinction. This indicates that the species as a whole probably maintained a stable and relatively large population until just before it disappeared around 8,700 years ago.
- - - -
“Our analyses showed a surprisingly stable genetic pattern with no change in inbreeding levels through tens of thousands of years prior to the extinction of woolly rhinos,” said study co-author and paleogenomicist Edana Lord.
+The post Backcountry.com is blowing out dozens of sunglasses for clearance prices during this flash sale appeared first on Popular Science.
+]]>The post What were books like in ancient Greece and Rome? appeared first on Popular Science.
+]]>Additionally, there was no evidence of a long-term gradual population decline within the genome. The extinction appears to have occurred relatively quickly, likely due to global warming at the end of the ice age.
- - - -“Our results show that the woolly rhinos had a viable population for 15,000 years after the first humans arrived in northeastern Siberia, which suggests that climate warming rather than human hunting caused the extinction,” concluded study co-author and evolutionary genomicist Love Dalén.
-The post 14,000-year-old woolly rhinoceros DNA extracted from wolf’s stomach appeared first on Popular Science.
-]]>The post Why is okra so slimy? Blame the mucilage. appeared first on Popular Science.
-]]>Some okra recipes strive to minimize slime; others celebrate and embrace the thickening it provides to dishes like Louisiana gumbo. But did you ever wonder why okra is so gooey? What’s the source, and what purpose does it serve for the okra plant?
- - - -The edible part of okra is the plant’s immature seedpods, which contain high levels of a substance called mucilage. Food science writer Harold McGee described mucilage in his book On Food and Cooking: The Science and Lore of the Kitchen as “a complex mixture of long, entangled carbohydrate molecules and proteins that helps plants and their seeds retain water.” Basically, mucilage is the watery slime around the okra seeds. As the seeds develop, their moist coating protects them from drying out.
- - - -Okra likely evolved its slime (or, more accurately, mucilage) as a water-conserving adaptation for growing in hot, dry climates. McGee notes that the okra plant “originated in either southwest Asia or eastern Africa, and came to the southern United States with the slave trade.” Today, okra is popular in many tropical and subtropical regions of the world, and is known for its high tolerance to heat and drought when compared with other crops.
- - - -Okra is not the only plant with goo-producing levels of mucilage. It’s a common feature of desert plants like cacti and succulents, which have a similar need to store water. Other edible examples include some seaweeds, and leafy greens such as Malabar spinach, native to Asia, and molokhia, popular in parts of Africa and the Middle East.
- - - -Mucilage is actually produced in smaller quantities by almost all plants, as well as by some microorganisms. Single-celled protists like amoebas propel themselves on a trail of mucilage, similar to the slime trail of a snail. Japanese natto, made from fermented soybeans, gets its signature stretchiness from bacterial cultures.
- - - -
“The majority of plants produce mucilage from the seed coat,” according to a 2021 research review. However, the way that mucilage keeps seeds moist can vary. While okra seeds grow inside a mucilage coating, in other plants, mature seeds that have been shed produce mucilage by absorbing water from their surroundings. You can see this yourself when you soak chia seeds to make a chia pudding, or flaxseeds to make a “flax egg” for vegan baking. Each tiny seed sucks up water to form a layer of mucilage, creating a gel-like texture.
- - - -There are also other ways plants use mucilage beyond water conservation. Carnivorous sundews use droplets of mucilage as glue traps for insects. Sierra Mixe or olotón, an heirloom variety of corn from Oaxaca, Mexico, has exposed roots that drip with mucilage. This slime shelters symbiotic nitrogen-fixing bacteria. As a result, says a 2020 UC Davis report, “Sierra Mixe corn receives much of the nitrogen it needs from the atmosphere,” and thrives in nitrogen-poor soil.
- - - -The human uses for mucilage go far beyond food. Historically, plant mucilage was used as a natural hair gel, and as an adhesive for paper stamps and labels. In medicine, mucilage can act as a demulcent, a substance that soothes irritated mucus membranes by forming a protective layer over them. Examples include slippery elm tea for sore throat and aloe ointment for sunburn. Mucilage is also the active ingredient in fiber supplements such as psyllium husk, and is found in some cosmetics.
- - - -Scientists also increasingly look to mucilage for industrial purposes. A 2021 research review describes plant mucilage as “a renewable and cost-effective source of plant-based compounds” that are both biodegradable and environmentally friendly. In the case of okra specifically, its mucilage has been used to make biodegradable food packaging film and for filtering particles from wastewater.
- - -If you were to visit a bookshop in the ancient world, what would it be like?
-You don’t just have to imagine it. The ancient Roman writer Aulus Gellius, who lived in the 2nd century CE, gives us a number of descriptions of his adventures at bookstores. In one passage, he describes an encounter at one in Rome, which he was visiting with a poet friend:
-Some cultures actively celebrate mucilage as a part of the culinary experience. In Japan, the texture of ingredients like okra and natto, known as neba-neba, is prized. In Nigeria, dishes made with okra and other viscous ingredients are called “draw soups,” because they’re so thick they draw back into the pot on their own when lifted. However, some don’t like the slimy texture, which is why there are many methods to make okra less slimy in the kitchen, rather than more so.
++-I chanced to be sitting in a bookshop in the Sigillaria with the poet Julius Paulus […] There was on sale there the Annals of Quintus Fabius Pictor in a copy of good and undoubted age, which the dealer maintained was without errors.
+
Science writer Jared Levan noted in a 2018 article for Food Republic that “mucilage’s viscosity increases when heat is applied.” Short cooking preparations of okra, such as frying or sauteeing, release less mucilage than long ones, such as stewing. Adding acidic ingredients like tomatoes to okra also helps reduce the slime. And because the mucilage is concentrated in the center of the okra pods, chopping or slicing them releases more slime than cooking them whole.
+Gellius then tells us that, while they are sitting there, another customer enters the shop. The new customer has a disagreement with the dealer. He complains that he “found in the book one error”. The dealer says that’s impossible. Then the customer brings out evidence to prove the dealer wrong.
-Even if you’re not a fan of okra’s mucilage, there are still many ways to enjoy the vegetable without it. Or perhaps mucilage will go down a little easier when you remember just how useful it is, for both plants and people.
+In different passage, Aulus tells us about some bookstalls he came across when he arrived by ship at the port of Brundisium on the Adriatic coast. The books, he records, were “in Greek, filled with marvellous tales, things unheard of, incredible […] The writers were ancient and of no mean authority”.
-In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
++- -The volumes themselves, however, were filthy from neglect, in bad condition and unsightly. Nevertheless, I drew near and asked their price; then, attracted by their extraordinary and unexpected cheapness, I bought a large number of them for a small sum.
+
The post Why is okra so slimy? Blame the mucilage. appeared first on Popular Science.
-]]>The post Medieval plague victims likely found in mass grave in Germany appeared first on Popular Science.
-]]>
Now, an archaeological team including researchers from Leipzig University believe they have finally located one of those infamous burial sites. According to their study recently published in the journal PLOS One, land near the deserted medieval village of Neuses contains clear evidence of human remains, as well as the hastily mixed soil that covered the bodies.
+Aulus goes on to describe in excited language all the weird facts he derived from these books – like how people in Africa can “work spells by voice and tongue” and through this witchcraft cause people, animals, trees and crops to die.
-“Our results strongly suggest that we have pinpointed one of the plague mass graves described in the Erfurt chronicles,” explained study co-author and Leipzig University geographer Michael Hein.
+The suspected burial plot is fascinating not only for what it contains, but how it was identified. Instead of accidentally discovering archaeological evidence amid a construction project (as is often the case), Hein and colleagues used interdisciplinary techniques to seek out the potential Black Death burials. To do this, the team analyzed the ground beneath them using a process called electrical resistivity mapping. Every type of geologic material possesses some degree of electrical conductivity, which can be charted by firing currents into the earth and measuring resultant voltages. This allows researchers to correlate voltage to various soil and rock types.
+These sorts of stories bring us close to how ordinary people in ancient Greek and Roman times obtained books and engaged with books. But if we read stories like this it might lead us to want to know more. How did books and writing come into existence? And how were books written and produced?
-At one location, Hein’s team identified a roughly 33 by 49 by 11.5 foot site with noticeably disturbed subsurface sediment distributions. Subsequent drilled core samples produced mixed geologic materials along with the fragments of human remains. Additional radiocarbon dating indicated the remnants dated back to the 14th century. Taken altogether, it strongly suggests a medieval mass grave.
+Many people in the ancient world thought that writing had been invented by gods or heroes. For example, the ancient Egyptians believed the god Thoth was the first to create signs to represent spoken sounds.
-Apart from the bodies, the sediment composition itself supports the Black Death burial theory. The village of Neuses was likely settled in part due to its fertile soils known as chernozems. However, the grave pit is located in a drier region near a valley edge of the Gera River. It stands to reason that instead of interring Black Death victims in wetter soils closer to the town, the residents of Neuses opted to place them in drier conditions far outside the village walls.
+The origins of writing are certainly mysterious. It’s unclear when writing began and who invented it.
-“This finding aligns with both modern soil science and the medieval ‘miasma theory,’ which held that diseases spread through ‘bad air’ and ‘vapours’ arising from decaying organic matter,” said study co-author Martin Bauch of the Leibniz Institute for the History and Culture of Eastern Europe.
+The earliest written text is a wooden tablet radiocarbon dated to before 5000 BCE. This is known as the Dispilio tablet, because it was discovered at a neolithic lakeside settlement at Dispilio in Greece. It is carved with strange linear markings. These have not been deciphered, but most scholars think they are a form of writing.
-The team’s hypothesis won’t be confirmed without an actual excavation at the site, but until then, their novel approach paves the way for additional searches. This technique isn’t relegated to plagues of the distant past, however. Hein, Bauch, and their collaborators believe similar approaches can be applied to various other archaeological searches.
-The post Medieval plague victims likely found in mass grave in Germany appeared first on Popular Science.
-]]>The post Amazon is blowing out LEVOIT air purifiers so you can filter out irritants appeared first on Popular Science.
-]]>
Evidence for writing appears early in different parts of the world. In Mesopotamia and Egypt, the oldest texts, such as the Kish limestone tablet at Uruk or the Narmer Palette at Hierakonpolis, date to before 3000 BCE. In the Indus Valley, the Harappan script, which remains undeciphered, appeared around the same time. In China, the earliest characters, the Dawenkou graphs, also date to around 3000 BCE.
- - - - See It - -One of the most interesting aspects of early writing is that there is such a variety of different scripts. For example, the earliest known texts in the Greek language are written in the Linear B script, which was used from around 1500-1200 BCE, and wasn’t deciphered until 1952. Linear B is not an alphabet, but a syllabary of more than 80 different signs. A syllabary is a kind of writing system where each sign represents a syllable.
-
The LEVOIT Core 300S-P Smart Air Purifier (up to 1,051 ft²) won’t dominate your room, but it will own your air quality, making it perfect for bedrooms, nurseries, and home offices that still want serious clean-air punch. It pairs 3-stage filtration with AirSight Plus real-time air quality sensing, plus Smart Wi-Fi controls through the VeSync app (schedules, timers, and remote tweaks) and voice control with Alexa or Google Assistant so you can adjust air on autopilot. It’s also impressively low-key: QuietKEAP can drop noise to 22 dB, making it the kind of purifier you forget is running—until you notice you’re breathing easier.
By around the 8th century BCE, most Greeks had starting using an alphabet instead of a syllabary. Unlike a syllabary, in an alphabet each letter represents a vowel or consonant. The Greeks adapted their alphabet from the Phoenician alphabet, probably via interactions with Phoenician traders. The Phoenician alphabet had only 22 letters, making it much easier to learn than the 80-plus syllabary signs of Linear B.
-
The LEVOIT Core 600S-P Smart Air Purifier (up to 2,933 ft²) is the go-big-or-go-back-outside option in the Core series. Designed for truly large spaces, it combines a 3-in-1 filter with HEPA Sleep Mode, an onboard PM2.5 monitor, Smart WiFi, and Alexa compatibility so you can see and control your air quality in real time. It’s AHAM VERIFIDE, so you’re not just guessing that it’s working—and when wildfire season or city smog rolls in, this is the kind of coverage you want on your side.
+People in ancient times used many different things as writing materials.
-The Roman writer Pliny the Elder (23-79 CE) tells us that the earliest people in the world
- -+-used to write on palm-leaves and then on the bark of certain trees, and afterwards folding sheets of lead began to be employed for official muniments, and then also sheets of linen or tablets of wax for private documents.
+
The LEVOIT EverestAir-P Air Purifier (up to 2,655 ft²) is the “I want it all” flagship, built for big rooms and bigger allergy problems. A 3-channel air quality monitor gives you at-a-glance feedback, while the washable pre-filter and HEPA Sleep Mode help tackle pet hair, dust, smoke, and everyday funk. With Alexa control and an AHAM VERIFIDE rating, it’s a smart, set-and-forget solution if you want cleaner air on autopilot in open-plan spaces.
+However, the most popular writing material in the ancient Mediterranean was papyrus, from which we get our word “paper”.
-To make papyrus, you get the pith of the papyrus plant (Cyperus papyrus), cut it into slender strips, then press it together. Once dried, it forms a thin sheet that you can write on.
- - - - See It - -Papyrus sheets were usually glued together into rolls. These rolls could be very long. Some of the most lavish Egyptian papyrus rolls were more than 10 metres long, such as the recently discovered Waziri Papyrus containing parts of the Book of the Dead.
-Winter dryness can be brutal. It can make your eyes feel tired, your sinuses hurt, and your skin itchy and painful. A humidifier can help, and this popular Levoit model is on sale right now at 25 percent off its normal price. The 2.5-liter reservoir lasts up to 25 hours on a single fill. Rather than having a separate tank to carry to the sink, this is a top-fill model, so you simply remove the cover and pour in the water. This is one of the easiest and cheapest ways to upgrade your quality of life, especially in the winter.
+When papyri were rolled up they were stored in shelves or boxes. Labels were attached to the handles of the papyri so you could identify their contents. In his play Linus, Greek playwright Alexis (c. 375-275 BC) has one character tell another how to look through a bunch of rolls to find what he wants:
-+-go over and pick any papyrus roll you like out of there and then read it… examining them quietly, and at your leisure, on the basis of the labels. Orpheus is in there, Hesiod, tragedies, Choerilus, Homer, Epicharmus, prose treatises of every type…
+
Papyrus seems flimsy to the eye, but it is a durable writing material, stronger than modern paper. Many papyri have survived for thousands of years stored in jars or sarcophagi or buried under the sand.
-The oldest surviving papyrus text is the so-called Diary of Merer (which you can listen to here), the logbook of a man named Merer, who was an inspector during the construction of the Great Pyramid of Giza under Pharaoh Khufu. This papyrus, which dates to around 2600 BCE, gives a day-by-day account of how Merer and his team of about 200 men spent time hauling and transporting stone and doing other work.
-Papyrus was susceptible to being eaten by insects or mice. But there were ways to prevent this. Pliny the Elder, for example, advises that sheets of papyrus soaked in citrus-oil won’t be eaten by moths.
-If you were living in ancient Greece or Rome and wanted to write a book, how would you do it?
-First, you would buy sheets or rolls of papyrus to write on. If you couldn’t afford it, you’d have to write on the back or in the margins of papyri you already owned.
-If you didn’t own any papyri already, then you would have to write on other materials. According to the Greek historian Diogenes Laertius (3rd century CE), the philosopher Cleanthes (c. 331-231 BCE) “wrote down lectures on oyster-shells and the blade-bones of oxen through lack of money to buy papyrus”.
- -The post Amazon is blowing out LEVOIT air purifiers so you can filter out irritants appeared first on Popular Science.
-]]>The post Is it illegal to own an axolotl? It depends. appeared first on Popular Science.
-]]>Second, you would get your ink. In the ancient world, there were many varieties of ink. Normal black ink was made from the soot of burnt resin or pitch mixed with vegetable gum. When buying ink, it would come in powder form, and you would need to mix it with water before using it.
-A good example of the ongoing amphibian conundrum recently occurred at Chicago’s O’Hare Airport. According to a U.S. Fish and Wildlife Service (FWS) social media post earlier this month, inspectors flagged a shipment containing “smuggled” axolotls inside a commercial import of live fish intended for pet resale. Already listed under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), regulators also added them to the Lacey Act in 2025 an “injurious species” because of their potential to spread disease to native amphibians if released. Despite this, comments from both impassioned axolotl fans and wary observers quickly inundated the FWS.
+Third, you would get your pen. It would be made from reed, hence it was called the “calamus” by Greeks and Romans (“calamus” is the Greek word for reed). To sharpen your pen you would need a knife. If you made a mistake, you would erase it with a wet sponge.
-“These are commonly bred in captivity. Why the fuss?” one user asked. Another claimed that, “Making them illegal was a mistake. They will still be bought and sold everywhere.”
+Now you have all the materials you need. However, you don’t need to use the pen and papyrus yourself. If you want, you can get a scribe to write down your words for you.
-
The Greek orator Dio Chrysostom (c.40-110 CE) even advised writers not to use the pen themselves:
-Many others noted another mixed message from the FWS, this time in the post’s accompanying photo. Unlike Mexico’s dark-colored amphibians, these pinkish-white axolotls appeared to be leucistic, meaning they lacked their standard pigmentation. Leucistic axolotls are routinely bred in captivity—you may have even seen some in a local pet store. So, what’s the deal? Can or can you not own axolotls?
++-Writing I do not advise you to engage in with your own hand, or only very rarely, but rather to dictate to a secretary.
+
“Even though wild axolotls are imperiled, many of these animals are bred in captivity to be sold as pets. These animals are often cross bred with other species (such as tiger salamanders) and may be both genetically and behaviorally different than wild populations,” FWS senior public affairs specialist Christina Meister tells Popular Science.
+If you needed to consult other books while writing, you could get friends to send them to you or ask book dealers to make you a copy. In a papyrus from the 2nd century CE found at Oxyrhynchus, Egypt, and written in Greek, the writer asks his friend to find the books that he needs and make copies of them. Otherwise, you would go to a library, though the best libraries at Alexandria, Rome and Athens might be far away.
-Meister explains that while they are illegal to own in some states, that isn’t the case everywhere. At the same time, the axolotl’s recent addition to the Lacey Act’s injurious species list makes it illegal to import the amphibians into the U.S. It’s also unlawful to transport them from the continental U.S. to either the District of Columbia or any U.S. territories without a proper permit. And because Meister says the Lacey Act “broadly prohibits” the sale or transfer of basically any wildlife in violation of federal, state, tribal, or foreign law, that means that you really need to check the fine print before acquiring your axolotl.
+When you finished drafting your book you would need to revise and correct it. You could then publish it by having many copies made by scribes and delivering these copies to friends and booksellers.
-
When all this was done, your book would be out in public. Perhaps someone like Aulus Gellius would stumble across it in a busy Roman bookshop. Maybe he’d even buy it.
-In the case of the recent incident at O’Hare Airport, the FWS clarified the exotic pets were part of a larger shipment that violated the Lacey Act, and included, “other wildlife that was not properly declared or labeled, violating both the Endangered Species Act (ESA) and the Lacey Act’s trade provisions.”
-Axolotl demand now goes beyond pet owners, however. Meister says animal traffickers are particularly attracted to them due to their “unique appearance and inability to defend themselves make them a relatively easy target.” Meanwhile, they’re coveted by many researchers—particularly in the biomedical industries—because the critically endangered amphibians possess a remarkable ability to regenerate limbs and even certain organs.
+The post What were books like in ancient Greece and Rome? appeared first on Popular Science.
+]]>The post Baby chimpanzees like to free fall through trees appeared first on Popular Science.
+]]>So although they aren’t illegal everywhere in the U.S., Meister highly recommends people consult both federal and state wildlife laws before considering purchasing an axolotl. And when you do, be sure to buy them from reputable vendors and not those trying to sneak them through airports.
-The post Is it illegal to own an axolotl? It depends. appeared first on Popular Science.
-]]>The post Father and son reclaim Guinness World Record for fastest quadcopter drone appeared first on Popular Science.
-]]>After studying videos of 119 wild chimpanzees, researchers found that chimpanzees’ risky behavior peaks in their infancy, and then lessens as they get older. Specifically, they documented that infants were three times more likely, juveniles were 2.5 times more likely, and adolescents were 2.1 times more likely than adults to undertake risks. Chimps are typically classified as infants from birth to around five years old.
@@ -7312,1602 +4766,2166 @@ https://youtube.com/watch?v=DCR8n7qS43w%3Fwmode%3Dtransparent%26start%3D0 -According to Luke Bell’s recent video update, he and his father have spent the past five months improving “every aspect” of their Peregrine design through a combination of simulation runs, stress tests, and equipment experimentation. This time around, they built much of their drone frame using a Bambu Lab H2D dual-extruder 3D-printer. This allowed them to print Peregrine 4’s main body, camera mount, and landing system as a single, unified component.
+“One of the main findings is that all chimpanzee kids are risky, and that infant and juvenile chimpanzees are even more risky than adolescents,” Lauren Sarringhaus, lead-author of the recent study and a biologist at James Madison University, said in a statement. “That’s noteworthy because that is not what you see in humans.”
-“That gave us smoother aerodynamics and a much higher surface finish quality than before,” Luke explained.
+Chimps’ risk-taking was not associated with their sex, nor how high up in the trees they were. In other words, it was equally probable for male and female infants to undertake physical risks at any height. The specific risky behavior studied in chimps was free flight—when they purposefully fall from a branch or jump from one branch to the next without any hold.The risk in free flight is falling and then getting hurt.
-Other alterations included upgrading to four, 900 kV T-Motor 3120 brushless motors—an increase of 100 kV over their previous motor choices. The Peregrine 4’s frame is also slightly larger than earlier models, but that clearly didn’t seem to affect its overall performance.
+Compared to chimpanzees, it’s more difficult to investigate physical risk-taking in humans. We can’t recreate the behavior in a lab, but even studies based on observations or survey data run into the issue that risky behavior in children (such as doing monkey bars) doesn’t usually continue into adulthood (such as skydiving), and vice-versa.
-As in past verification trials, Guinness World Record officials followed the industry-standard rubric of averaging two flight runs in opposing directions to offset any windspeed influences.
+It remains to be seen how long the Bells can hold on to their title now. The title has shifted multiple times over the past few years. After topping their own initial achievement in April 2024, two other inventors increased the drone speed records twice more before the duo set the bar even higher in June 2025. After supplanting Biggs’ subsequent efforts, this now marks the Bells’ third time as Guinness World Record holders. Like the drones themselves, the speed at which bragging rights changes hands seems to be constantly accelerating.
-The post Father and son reclaim Guinness World Record for fastest quadcopter drone appeared first on Popular Science.
-]]>The post Abandoned pigs rescued on Tennessee’s Looney Islands appeared first on Popular Science.
-]]>Interestingly, this study appears to suggest something novel about our own species. Simply put, the results indicate that while chimp mothers can only restrain their children as long as they can maintain them physically close, human parents and caregivers can continue monitoring them and human children are simply supervised more. What’s more, if we didn’t have this extended overwatch, our risky behavior might also peak earlier instead of being delayed to adolescence.
-After some searching, the two pigs were found together and rescued thanks to a bit of patience and the team’s “pig whisperer.” This pig whisperer is Mary Nussbaum, the Young-Williams Animal Center’s Director of Medical Operations. Nussbaum has over 30 years of experience in veterinary medicine, including working at the University of Tennessee College of Veterinary Medicine and its Veterinary Medical Center.
+“Bryce found that in fact the youngest chimps were doing all of these crazy leaps and drops, and it declined gradually as they aged. We were really scratching our heads thinking, ‘What is going on?’”said co-senior author Laura MacLatchy, a professor of anthropology at the University of Michigan, referring to co-author Bryce Murray. “We realized that the littlest chimps were unrestricted in what they do, as soon as they were out of arm’s reach of their mom and no longer clinging and riding around on their mom.”
-“She also is passionate about the care and protection of animals. Since the pigs were stranded on Looney Islands in January, available food resources were scarce, and the rescue team was able to lure the pigs with a whole lot of patience and several snacks,” Janet Testerman, CEO of the Young-Williams Animal Center tells Popular Science. “As soon as Mary started offering them food, they approached and were comfortable coming to her.”
+According to indications by earlier work, chimpanzee play might help them exercise abilities related to movement, or understand the results of risky behavior during a particular period of their lives—they are young, lightweight, have “spongier” bones, and have fewer chances of injury
-Indeed, infant chimps frequently take the risks in question while playing, MacLatchy explained, to gain the physical competencies and confidence necessary for an arboreal existence. “Competency as an adult really depends on practice when you’re little,” she added. “Play as practice might be part of what’s going on with these kids. Then again, there may be no stopping them.”
+The post Baby chimpanzees like to free fall through trees appeared first on Popular Science.
+]]>The post How to avoid the iPhone’s notorious ‘silent alarm’ bug appeared first on Popular Science.
+]]>The pigs were brought back to the rescue center and received a medical evaluation. As of now, it is not clear how they made it to the islands. If an owner comes forward to reclaim the pigs, Young-Williams will inquire further. If no one claims ownership, the duo will be made available for adoption.
+The bug causes alarms to go off, but silently—there’s no audible ring, and no vibration. That’s not ideal if you need to get up for work, a flight, or anything else you have to do. So what exactly is going on? Here’s what we know about the so-called silent alarm bug on the iPhone and what you can do about it.
-The municipal no-kill shelter takes in over 10,000 animals every year, primarily stray cats and dogs. “But we also see our share of roosters, chickens, rabbits, hamsters, gerbils, snakes, turtles, and pigs,” says Testerman.
+
If you set an alarm, it’s important that it actually alerts you at the right time. But these silent alarms that users have been noticing on their iPhones don’t make any sound and don’t trigger any vibrations. They do appear on screen as normal, but they’re completely silent.
-The two-year-old facility accepts animals no matter the severity of sickness or injury and is considered a “no-kill” shelter. According to the Animal Human Society, in order to be considered a no-kill, a shelter or rescue must have an at least a 90 percent animal placement rate.
+As for what’s causing it, no one seems certain. Back in 2024, Apple said it was fixing the issue, without going into much detail about what was behind it—but users are finding that it’s still happening. Sometimes it seems that a particular iOS version will patch the problem, only for it to show up again in a subsequent version.
-“The story of the pigs is but one of thousands of calls we have responded to in less than two years that have led to better options for the community and our animals,” says Testerman.
-The post Abandoned pigs rescued on Tennessee’s Looney Islands appeared first on Popular Science.
-]]>The post In medieval France, murderous pigs faced trial and execution appeared first on Popular Science.
-]]>Given that it’s been happening for a long time, and affecting a substantial number of users (but not everyone), it’s possible that there are multiple causes. While there’s been no official guidance from Apple about how to fix it, there are steps you can take to minimize the likelihood of silent alarms.
-However, reality is sometimes stranger than fiction. Because sometimes the criminal wheeled about town wasn’t human. Occasionally, the prisoner at the end of the rope was a pig, hung upside down until dead. In medieval Europe, pigs went to trial—and the gallows—surprisingly often.
+Most of us don’t live on farms today, so it can be easy to forget how dangerous domesticated animals can be. Cows can trample people to death, horses can deliver fatal kicks, and those are just the herbivores. Pigs, on the other hand, are omnivorous. Throughout history, this made them useful as they could be fed kitchen scraps and waste. Yet a pig allowed to wander freely could easily overpower a small child, and as a result, there are hundreds of records of pigs killing and eating children across medieval Europe.
+
First, make sure your alarms are set as intended from the Alarms tab of the Clock app. Tap on an alarm and you can check the Sound option to see the noise it triggers and the Repeat option to check the frequency—it may be that your alarm is set to go off some days and not others. If a specific alarm isn’t ringing, try deleting it and creating it again.
-In 1379, a group of pigs in the village of Saint-Marcel-lès-Jussey in eastern France killed a swineherd’s child. In 1386, a sow in Falaise, Normandy, savaged a young boy, who died of his injuries. In 1457, a sow killed five-year-old Jehan Martin in the village of Savigny in Burgundy. Gruesomely, the sow’s six piglets were nearby, covered in blood.
+You can get to the audio settings for your iPhone by opening up Settings, then choosing Sounds & Haptics. Look at the volume slider under Ringtone and Alerts to make sure it’s high enough. You might also want to turn off Change with Buttons to make sure you’re not adjusting the alert volume accidentally. Alarms shouldn’t be affected by the Silent Mode toggle, but you can try turning this off anyway.
-“We are used to this pink, fluffy, or quite chubby animal that would be quite slow, but pigs in the Middle Ages were much closer to the wild boar,” says Sven Gins, a historian and a researcher at the University of Groningen, as well as the author of Casting Justice Before Swine: Late Mediaeval Pig Trials as Instances of Human Exceptionalism. “So they were very fast, very strong, and they ate everything, including human meat sometimes.”
+Under Bluetooth in Settings, make sure your iPhone isn’t connected to any speakers or headphones that it shouldn’t be—otherwise it could be piping your alarm sounds through a different device and not your iPhone speakers.
-
Some users have found they can overcome the silent alarm bug by turning off the Attention-Aware Features toggle switch, which you’ll find under Face ID & Passcode in Settings. This changes certain iPhone behaviors, including the level of alarm sounds, if it thinks you’re looking at the screen. It could explain certain silent alarms—though it should only ever lower the alarm volume level, not mute it completely.
-It’s worth saying that the Do Not Disturb mode and any other modes you’ve got set up in Focus in Settings shouldn’t make any difference to alarms—they just control the volume for app notifications—but it’s perhaps worth reviewing them anyway.
-In France, these incidents often resulted in trials, with the pig treated almost as a human defendant. “A lot of the records are saying, ‘This pig went to jail. This pig was transported in a cart. We got an executioner from Paris, and we paid him,’” says Gins. “These are very serious legal proceedings, in many cases. Almost mundane, actually. To us, it’s sensational that they would put a pig on trial, but to people at the time, it seemed [like] an ordinary thing to do.”
+Finally, be sure to keep your iPhone up to date with the latest version of iOS. While it seems as though this bug is persisting in the latest software releases, hopefully at some point Apple will squash it for good, and when that happens you’re going to want to get the update as soon as possible.
-Gins notes that, as wild as pig trials sound, their purpose may have been practical. “One thing that is often not mentioned is that justice in general at the time was very much focused on reconciliation between the two parties,” he says. Sometimes, all it took was a payment from one side to the other to resolve an issue. “But then if a child is killed, that’s quite major, and money isn’t always going to cut it. So in that case, it helps if the law steps in and says, ‘We’ll take over from here.’”
+Taking a pig to trial gave authorities a chance to dig deeper. “They sometimes wanted to know, was there any ill-intent present in this? If you know that a pig is dangerous, why would you let it wander about in the presence of young children? Sometimes even the parents themselves were suspect. They wanted to know if it was an unwanted child that they had left near the pigs, or if it was simply the owner who had been neglectful,” says Gins. “I would say that the court really stepped in to gain clarity and provide a coherent narrative for everyone.”
+
Something else you can do to try and avoid silent alarms is to install a third-party alarm app, and there are lots to choose from. Alarmy actually prides itself on the loudness of its alarm alerts, so you should have no problems waking up. You can get some extra premium features and remove the ads by paying $4.99 a month, but the basic functionality is free.
-Sometimes, higher authorities would get involved in local pig trials. In the 1379 case, a group of pigs, some belonging to the local abbey, were charged with killing a swineherd’s son.
+Then there’s Galarm, which packs alarms and reminders into one app, with a host of options available. You can categorize alarms and add notes to them, for example, and go into plenty of detail when it comes to when alarms should repeat. Again, you can opt to subscribe for more features and an ad-free experience, which costs $0.99 a month.
-The abbey, Gins says, wrote to the Duke, Philip the Bold. Gins sums up the letter: “Can you please let our pigs go? Because we are sure that they were not involved in the killing. They are well-behaved pigs.” The Duke listened, and wrote a letter of pardon for the abbey’s pigs.
+Sleep Cycle is another app worth considering. Not only will it wake you up, it also has a smart alarm feature that aims to rouse you at the most beneficial time in your sleep cycle (within a preset window). It’ll track your sleep too—there’s a lot to it. You get the basics for free, with a pile of premium features (including weather reports and more sleep stats) available for a $2.99-per-month subscription.
-Idaho once dropped 76 beavers from airplanes—on purpose
-During WWII, a dress-wearing squirrel sold war bonds alongside FDR
-When the U.S. almost nuked Alaska—on purpose
-Andrew Jackson’s White House once hosted a cheese feeding frenzy
-The space billboard that nearly happened
-BOOM! That time Oregon blew up a whale with dynamite.
-The radioactive ‘miracle water’ that killed its believers
-During WWII, the U.S. government censored the weather
- - -Or you can invest in a smart alarm clock. Or just an old-fashioned alarm clock with the big red numbers and real buttons.
+The post How to avoid the iPhone’s notorious ‘silent alarm’ bug appeared first on Popular Science.
+]]>The post Duluth Trading’s winter clearance drops its toughest coats, pants, and outerwear up to 70% off appeared first on Popular Science.
+]]>In recent centuries, writers and historians have looked back on the trials of pigs and other animals as senseless revenge by crude peasants. However, animal trials could also serve a cold political purpose for local authorities, as the right to execute criminals and even build a gallows was considered a privilege.
-One homicidal pig in the 15th century, Gins notes, ended up in jail for five years before its execution. “That doesn’t scream petty rage to me. There were formal letters sent to the Duke asking, ‘Can we please build a gallows to execute this animal?’” It was quite a victory for the local lord, he adds, that Duke John the Fearless finally acquiesced. Not only did the lord get to show off his power by building a gallows of his own, but he was finally able to get the pig out of his jail and stop paying for its feed.
+Dr. Damian Kempf, a senior lecturer at the University of Liverpool, is an expert on medieval European monsters. He says animal trials were also “about restoring order when there has been chaos.” Despite popular belief, he notes, humans often weren’t put to death for crimes—such punishments were reserved for the most wicked deeds, such as infanticides.
+ +“For medieval people, the world was created by God in a very logical way, with animals created first, in order to serve and help human beings who were created in the image of God,” Kempf explains. A trial and public execution, even of a pig, was considered a surefire way “to restore what was broken.” A pig eating a child was an unbearable inversion of the natural order, one that courts in medieval France would not let go unpunished.
+This is the deal for replacing your default jeans with something that’s actually meant for being outside. A solid pair of hiking-style pants earns its keep fast especially on windy days, travel days, and any time you’re climbing over stuff that isn’t a curb.
-In That Time When, Popular Science tells the weirdest, surprising, and little-known stories that shaped science, engineering, and innovation.
-The post In medieval France, murderous pigs faced trial and execution appeared first on Popular Science.
-]]>The post Get a 4-pack of these UGREEN Air Tracker tags for just $23—less than the price of one Apple AirTag appeared first on Popular Science.
-]]>UGREEN FineTrack Air Tracker Tags (iOS Only) $23 (was $35)
+ + + + See It + +UGREEN FineTrack (iOS only) is a 4-pack of Bluetooth trackers that integrates with Apple Find My tech. You pair it with an iPhone or iPad and manage it from the Items tab; when it’s nearby you can play a sound, and when it’s out of range it can surface a last-known location via the Find My network. It also supports lost-item alerts, Lost Mode (with contact info), and location sharing with family on iOS 17+. Power comes from a replaceable battery rated up to 2 years. It’s Apple MFi certified with end-to-end encryption claims, and it’s not compatible with Android (macOS viewing only).
+A long, insulated parka is the move for truly cold days because it keeps your core warm and doesn’t leave your thighs out in the wind. If you spend any real time outside in winter, this is the kind of layer that makes the whole season less miserable.
-UGREEN DisplayLink Dock (9-in-1, dual 4K60) is an all-in-one “dock it and forget it” fix for hybrid-work setups. DisplayLink support is the key here—it can make dual external monitors possible even when your laptop’s built-in video output is limited. It’s $109.98 (was $169.99).
+If winter where you live is more wet-snow-and-freezing-rain than fluffy powder, a waterproof down parka is the right kind of overkill. It’s a long, insulated layer meant to keep you warm while still standing up to ugly weather.
-UGREEN 80Gbps NVMe SSD Enclosure (USB4/TB, w/ fan) lets you drop in an M.2 NVMe SSD and turn it into a ridiculously quick external drive for video projects, photo libraries, or game installs. The built-in cooling fan helps keep speeds from nosediving during long transfers. It’s $199.99 (was $299.99).
+UGREEN Steam Deck Dock (9-in-1, 4K60, Ethernet) adds the ports you actually want—HDMI for the TV, Ethernet for more stable downloads, and extra USB for controllers and accessories. It’s a simple way to go from “handheld” to “couch mode” without a bunch of adapters. It’s $41.99 (was $59.99).
+The whole point of a 3-in-1 is that you’re not stuck committing to one level of warmth all day. It’s the kind of kit that makes sense if your week is split between commuting, dog walks, and the occasional cold weekend hike.
-The post Get a 4-pack of these UGREEN Air Tracker tags for just $23—less than the price of one Apple AirTag appeared first on Popular Science.
-]]>The post Adorama just dropped prices on Canon cameras and lenses by up to 30% appeared first on Popular Science.
-]]>If you want one camera that can credibly handle everything from personal work to serious action, this full-frame mirrorless body is a sweet spot. It’s quick, offers impressive autofocus, and has enough controls to grow with you without feeling like a science project.
+Full-frame doesn’t have to mean a second mortgage. The RP is a compact, approachable way into Canon’s RF system—great for travel and portraits, and a big step up if you’re moving on from a phone or an older DSLR.
+This is classic glass for sports, events, and portraits. The bright f/2.8 aperture helps in dim gyms and late-day light, and it’s the kind of lens you’ll keep even if you upgrade bodies later. It’s also smaller than the previous DSLR versions.
+Pick a series below and jump straight to the bundles and bodies that match your budget and how you shoot.
+The post Duluth Trading’s winter clearance drops its toughest coats, pants, and outerwear up to 70% off appeared first on Popular Science.
+]]>The post Hubble spots three young stars going through growth spurts appeared first on Popular Science.
+]]>A T Tauri star is a young star, usually less than 10 million years old. During this phase, the still-growing stellar object sees the dust and gas surrounding it begin to disappear as stellar winds, radiation, and other ionized particles bombard it. This dynamic environment is reflected in the star’s brightness, which randomly fluctuates depending on the material interactions underway in its accretion disk. More regular shifts in brightness can also occur as sunspots move in and out of view to astronomers here on Earth.
-The T Tauri examples seen in Hubble’s image have a long way to go before they resemble the stars most observers recognize. Gravity will continue to bear down on the object until it forces hydrogen and helium elements to fuse in the star’s core, at which point it will finally become a main sequence stellar object.
-The stars in Scorpius are further along in their growth than the protostars highlighted by NASA on January 14, however. About 1,300 light-years away, protostars in the “sword” of Orion are getting their start inside the constellation’s Orion Molecular Cloud complex. Astronomers aimed Hubble toward this area of the sky to better understand outflow cavities—areas where a protostar’s gas and dust is shaved away by nearby stellar winds.
+The post Hubble spots three young stars going through growth spurts appeared first on Popular Science.
+]]>The post You need a portable jump starter in your car and Amazon has these GOOLOO models for clearance prices appeared first on Popular Science.
+]]>Keep it in the trunk, forget it exists, then use it once every couple years to feel like a genius. The integrated cables won’t get lost in your car and you won’t have to depend on a kind stranger for a jump. The 100W charging matters, too—on road trips it can pull double duty as a legit power bank for phones, tablets, and other USB-C stuff.
-If you’re trying to cover the two most likely roadside problems with one device, this is the pick. Jump the car when the battery gives up, then top off a tire after you’ve been ignoring that warning light for a while. The inflator’s auto-off feature is underrated: you set the target pressure and let it stop itself.
-Sometimes you just want the affordable, no-drama option. Compact, cheaper than a tow, and capable of bailing out most everyday vehicles without taking up half your trunk, it’s well worth the price.
-If you drive something larger, live somewhere cold, or just want the most headroom, start here.
If you drive a typical commuter car, this tier is often plenty—and it’s the easiest on the wallet.
-If you only want to throw one thing in your trunk and call it a day, pick from this section.
-If your car doesn’t have a full-size spare (most don’t), this is a smart add.
-If you’re tired of guessing why the check-engine light came on, a scanner can save time (and sometimes a trip) by giving you a starting point.
-Not car gear, but still useful: rechargeable air dusters are basically a reusable can of compressed air. They’re handy for keyboards, PC fans, car vents, and all the places dust likes to hide.
-The post You need a portable jump starter in your car and Amazon has these GOOLOO models for clearance prices appeared first on Popular Science.
+]]>The post How to make a Blockbuster VHS sleeve for any movie appeared first on Popular Science.
+]]>That’s not to say you can’t recreate at least some of those nostalgic aesthetics. A highly accurate tape case design was first uploaded online in 2024 by programmer Ryan Finnie. At the time, however, making your own sleeves required a fair amount of manual input and adjustment. As spotted by BoingBoing, digital strategist and creator Tex Jernigan recently debuted the streamlined, free-to-use Blockbuster Sleeve Generator. Like the name implies, the website allows anyone to print out customized, highly accurate tape case labels that look nearly identical to the iconic blue-and-yellow slips once seen lining video store aisles. All the customizable elements are also integrated into a single program for any cinephiles yearning for a bit of VHS roleplaying.
-“[Blockbuster] closed in 2010, but it lives on in our hearts as a beloved symbol of video rental culture,” Jernigan explained on the project’s website.
-
The generator is also integrated with a film database to automatically fill in backsleeve information like cast, director, summary, release year, and approximate runtime. To make your case really look like the real thing, Jernigan even gives it an inventory barcode. After using the site’s Store Search tool (also free), users can identify the childhood Blockbuster store’s retail location number, then add on the movie’s unique code as well as the hypothetical inventory’s copy number.
-It’s a nifty craft project for people looking for something to do with that old box of VHS tapes in the back of their closet. Jernigan also tells Popular Science that the best way of porting a show or movie onto a blank VHS tape (yes, they’re still available to buy).
-“It’s funny, the best way is still the same: you hook a VCR up to any TV, and then press record and watch the TV while it records in real time,” he says, adding that there are also cheap HDMI-to-AV converters you use for converting from a laptop or computer.
-“It does a slight squeezing of 1080p video so that it fits onto the screen. I think it does a great job,” he says.
-Jernigan does note it’s worth mentioning that his personal project is “focused on the design and nostalgia side” of VHS culture, and is not intended to help illegal copying or redistribution.
-“I always try to encourage people to be mindful of copyright and local laws and to respect the original creators,” he says.
-But for your own home, there are few ways to better respect the pinnacle of video rental outlets than trying out Blockbuster Sleeve Generator.
+The post How to make a Blockbuster VHS sleeve for any movie appeared first on Popular Science.
+]]>The post Bose is clearing out refurbished audio products, including a soundbar for just $99 appeared first on Popular Science.
+]]>This low-effort upgrade for your TV is a simple set-and-forget solution to coax dialogue out from behind explosions and background music. Sidestep those tiny, tinny built-in speakers with an easy, one-connection setup. It supports Dolby decoding and is compact and clean-looking, tuned to make voices sound crisp at sane volumes and without redoing your living room.
-When the world won’t stop being loud, QuietComfort earbuds are the low-key solution. Bose noise cancellation is top-tier, and the fin-secured fit never feels clunky. The sound lands rich and controlled, offering a pocketable escape pod from the hustle and bustle. If you want serious focus without a serious investment, this is the move—ideal for flights, commuting, or making an open office feel a lot less open.
-Whether you want background music or event audio, this is the kind of portable speaker that makes everyday listening better. It’s compact, rugged, ready for spills and designed for thrills. The sound is punchy with balance but satisfying bass, whether you’re into podcasts in the kitchen, music in the backyard, or chill hangouts that don’t need a gigantic party speaker.
-These are the lenses that actually change what your camera can do—wide, long, fast, and weird.
+The post Bose is clearing out refurbished audio products, including a soundbar for just $99 appeared first on Popular Science.
+]]>The post In ancient Arabia, people dined on sharks and stingrays appeared first on Popular Science.
+]]>Since 2020, researchers from the Archaeological Institute of the Czech Academy of Sciences, Prague (ARÚ) have investigated Wadi Nafūn, an ancient grave site megalith (a structure built with large stones) used by Neolithic locals during the 5th century BCE. Amid their excavations, researchers found the skeletal remains of over 70 men, women, and children. But this wasn’t a single generation of people. The crypt’s size and subsequent radiocarbon dating indicate that Wadi Nafūn was built and maintained communally for over 300 years.
-“This monument was not built by a single small group. It represents cooperation, shared beliefs, and repeated return to a common ceremonial landscape,” project director lžběta Danielisová recently told Arkeonews.
-
However, Danielisová and collaborators faced an immediate challenge. Biological materials like teeth and skeletal fragments usually do not retain many organic components after being exposed to Oman’s arid climate for thousands of years. To properly understand their discoveries, the team needed to ship the materials back to the Czech Republic. There, they utilized isotopic analysis to examine a mineralized substance called bioapatite that remains on bones even after collagen disappears.
-They particularly focused on traces of carbon, oxygen, and strontium to pinpoint some of each Neolithic person’s dietary sources of protein. But it was the discovery of certain nitrogen isotopes that surprised them most, as these compounds are only found in very specific marine animals.
-“We know that these were not just ordinary proteins, but proteins from the top of the food chain,” Danielisová said in a university statement.
-For hundreds of years, it appears the Neolithic communities of southern Arabia regularly hunted and consumed sharks. They didn’t only eat the apex predators, either. Throughout Wadi Nafūn, archaeologists excavated shark tooth pendants, additional tiger shark teeth, fishing tools, and stingray barbs. In order to harvest all these materials, the Neolithic hunters appear to have even used their own teeth to help process and prepare their catches.
-“The teeth of this community have an interesting pattern. This indicates a specific diet and also that people used their teeth as tools,” explained ARÚ Prague anthropologist Jiří Šneberger.
-Additional evidence gleaned from the isotopic analysis also showed that some of the individuals buried at Wadi Nafūn weren’t technically locals. Strontium and oxygen levels suggest certain adults buried here at least spent their childhoods over 30 miles inland. Taken altogether, the shark and human evidence illustrate a highly dynamic, resourceful, and collaborative region that used everything at their disposal to flourish.
-“For the very first time, we were able to use natural science data to document specialized hunting of marine predators, directly by analyzing the local buried community,” said Danielisová. “The connection of this burial community with sharks is very interesting and is a new finding not only in prehistoric Arabia, but in the area of all Neolithic cultures of the arid zone.”
+The post In ancient Arabia, people dined on sharks and stingrays appeared first on Popular Science.
+]]>The post Don’t pick up frozen iguanas appeared first on Popular Science.
+]]>When air temperatures get cold enough, the reptiles will get stunned (or freeze) and fall from trees. Today, morning temperatures in Jacksonville and Tallahassee dipped as low as 20 degrees Fahrenheit overnight, while Orlando hit the mid-30s, and Miami fell to the upper 40s. All temperatures that are cold enough to temporarily freeze an iguana.
-Reptiles like iguanas are cold-blooded—or ectothermic—reptiles that rely on external environmental conditions to regulate their body temperature. By comparison, warm-blooded or endothermic animals like humans and other mammals have a more consistent body temperature. Since the outside temperature has such a drastic effect on their bodies, cold-blooded animals often adapt their behavior as a response. They may bask in the sun to warm up or find shade to cool down and achieve a more balanced body temperature.
-When it gets cold, iguanas may also enter a dormant state called cold-stunning or freezing since they are not adapted to life in colder temperatures. Iguanas can start to slow down if the temperature gets below 50 degrees, and stun once they hit the 40s or 30s.
-“When that happens, they may lose their grip and fall from the trees,” said AccuWeather Meteorologist Brandon Buckingham. “It’s a unique cold-weather hazard in Florida.”
-After they fall from a tree, they may appear to be dead. However, their critical body functions will all still be working and they will continue to breathe. Once temperatures rise, they can jump back into action as if nothing happened.
-Iguanas can grow up to seven feet long and weigh upwards of 30 pounds, so it is best to be cautious when walking under palm trees in colder weather. Getting hit by a reptile of that size could be dangerous.
-If you see a frozen iguana on the ground, do not rush in to warm them up. Joe Gonzalez from the Iguana Police told WPTV in West Palm Beach that relocating or interfering with an iguana can lead to more problems.
-“If you capture an iguana in your own yard and don’t move it anywhere else, that’s fine,” Gonzalez said. “But if you relocate it, you’re essentially taking your problem and dumping it somewhere else. This can have legal consequences, including fines.”
-Instead, it’s best to just leave the iguana alone. It will usually be fine once it gets over 50 degrees again.
+The post Don’t pick up frozen iguanas appeared first on Popular Science.
+]]>The post Why do cats lick you? An expert explains. appeared first on Popular Science.
+]]>But some felines don’t just lick themselves: They also lick you. A cat will be busy grooming themselves. Then, without warning, they’ll turn their spiky tongues on their unsuspecting humans. Other cats can’t be bothered and won’t ever groom or lick their human friends, or other kitty friends for that matter.
-So, why do some cats lick their owners? Are they trying to clean you, too? We asked an animal behaviorist and cat expert to help us sort out exactly what is going on when your cat licks you.
-For a mother cat, grooming is an important part of child rearing. When a mama cat licks her kittens it serves two important purposes: keeping her kittens clean and promoting social bonds, Kristyn Vitale, an animal behaviorist at Maueyes Cat Science and Education tells Popular Science.
-On the one hand, “mother cats are going to groom their kittens to help keep them clean and healthy,” says Vitale. Kittens can be especially susceptible to diseases, and “anybody who’s raised young kittens knows how dirty they can get, and a mother cat is not going to obviously bathe their kitten in a tub. They’re going to use their tongue to clean them.”
-
But grooming also helps a mother cat strengthen her relationship with her kittens, says Vitale. A mother licking her babies is “one of the kitten’s first forms of social interaction.”
-It’s essentially a way for mothers to say, “I love you and I care for you.”
-Kittens learn to groom from their mom, and usually start grooming themselves when they’re around four weeks old. Pretty soon after that, some cats “begin to reciprocate [their mother’s] grooming and they’ll groom their siblings or other unrelated cats and also preferred people in the house,” says Vitale.
-If your cat grooms other cats, animal behaviorists like Vitale call those cats their “preferred associates.” For instance, bonded cats often groom each other as a way to reinforce their bestie status. For cats, grooming other cats becomes “a very important social behavior that helps build bonds between the individuals.”
-We also see the same behavior in wild cats where mothers groom their cubs to keep them clean and strengthen their connection, says Vitale. In adulthood, wild cats might continue to groom others. You don’t have to search hard to find adorable videos online of lions and tigers licking their besties.
-But Vitale says there is one big difference here. A lot of wild cats, like tigers or even the closest relative of domestic cats, the African wild cat, “don’t live in social groups the same way the domestic cat does.” So they don’t always have the same opportunities to shower their buddies with love, because, well, they just don’t really have many buddies.
-So why, then, do some cats licks their owners? In general, if your cat licks you, it’s them saying (in so many licks) that they love you.
-Vitale says when her cat licks her, she sees it as them “engaging in a social behavior with me” that’s strengthening our relationship. “I’m thinking in my mind that they’re just in a happy mood and looking to hang out together and interact a little bit.”
-While all cats groom themselves (which is why you don’t really need to worry about baths for most cats), not all cats groom other cats or their human friends. But should you feel bad if your cat doesn’t lick you? Does it mean they don’t love you? “No!” says Vitale.
-“Licking’s just one social behavior they could engage in. If your cat just sits on your lap, or sits near you, or your cat’s rubbing up against you, or your cat plays with you, those are all other social behaviors that show there’s a bond,” she says. Cats show love for their owners in all sorts of ways, she emphasizes. “Licking is just one thing a cat could do.”
-Vitale has three cats, and of the three she says only one licks her, “very, very sparingly, like once or twice a month.”
-So, don’t worry, whether they’re a licker or not, your cat loves you. They might just have a different way of showing it.
-In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
+The post Why do cats lick you? An expert explains. appeared first on Popular Science.
+]]>The post The best folding electric bikes for 2026, tested and reviewed appeared first on Popular Science.
+]]>All sorts of interesting one- and two-wheeled vehicles crisscross my city streets, including an increasing number of affordable, portable forms of tech-packed personal transportation . Spandex-clad cyclists take advantage of protected lanes, while electric scooters zip over sidewalks (and anywhere else). Occasionally, an odd unicyclist or one-wheeler breaks up the predictability. I particularly like to watch foldable e-bike riders who go from trail to train, transforming their personal transit into a cube to carry through a crowd. These now-you-see-it, now-you-don’t collapsible electric bikes offer power assistance for commuting or errands without taking up valuable real estate in an apartment or townhouse. These flexible options can often fit into an SUV or RV for extended outdoor adventures without the need for a heavy-duty, and often expensive, rack. We’ve updated the most reliable options—like our best overall, the Lectric XP4—so you can find the best folding electric bikes to match your riding style and needs.
-We don’t test these bikes in a lab—we take them out into the wild. That means folding and unfolding them on sidewalks, rolling them into elevators to see if they actually fit, and lifting them into car trunks to find out if it’s a one-person job or a two-person struggle. We ride the same loops we’d take to work or the store—complete with potholes, stoplights, sketchy shoulders, and plenty of zippy scooters.
-Every bike gets pushed on performance: full pedal assist, lights on, up and down hills until the battery taps out. We pay attention to what it’s like to live with the thing—how it rides, how it folds, and whether we’d actually want to use it every day.
-Folding e-bikes are all about space efficiency, but what that looks like depends on the rider and what accessories you might want to carry. If you’re an urban commuter navigating a cramped apartment, crowded train platforms, and zero bike parking, you want something that folds fast, rolls easy, and doesn’t make enemies in the elevator. On the flip side, RVers, van-lifers, or campers may want a more rugged ride with enough power and range to cruise trails, run errands, or sub in for a car when you’re off-grid.
-All folding e-bikes promise one thing: they take up less space when you’re not riding them. Most have shorter wheelbases, lower standover heights thanks to smaller diameter wheels, and upright riding positions that keep you visible in traffic and balanced at low speeds. But the real magic is in the fold, whether that’s a single hinge or a multi-jointed origami routine. If you’re just tucking it into a hallway or closet, weight might not be a dealbreaker. But if you’re hauling it into a trunk or up a flight of stairs, make sure it’s something you can lift without needing an ice pack after.
-If you’re used to riding full-sized bikes, folding e-bikes do take some getting used to (as do all e-bikes). Taller riders might feel like they’re perched on a circus act, while smaller riders often find the compact fit more confidence-inspiring. The sharper turning radius is a win in tight spaces, but some gearing setups can leave you spinning without much payoff. Ride a few miles, though, and most people settle into the rhythm quickly.
-Lectric is one of the OGs of foldable electric bikes, so much so that I’d nearly always get a shout or recognition from another Lectric rider when I was riding one around town. They’d chat with me at a stop or ride alongside me for a bit, and I can honestly say it’s never happened to me on another brand of e-bike. The Lectric XP4 finetunes what it’s learned from previous models for an affordable, fun ride with five pedal-assist levels and a thumb throttle. Lectric added more juice to the 500W motor, which can peak at 1,092W and kick out 55Nm of torque.
-The tires are fat-tire lite—20 by 3 inches with custom tread—which makes for a more cushioned ride with the front suspension fork. The improved Shimano Altus gearing and an in-house-designed torque sensor mean less furious pedaling than other models to get up to top speeds. Lectric lists the standard step-over at $1,300 (there are also step-thru and long-range variations), but you can often find it on sale for a grand—and yet, it still has hydraulic brakes, which are a rarity at this price point. The XP4 also comes stock with many nice commuter extras, like integrated lights, front and rear fenders, and a monster rear rack that can hold up to 150 pounds. Lectric offers a ton of accessories, including a passenger seat for light riders (e.g., kids). It now features a TFT LCD color display with a USB-C charging port.
-For most people, the Lectric will meet their folding e-bike needs, but it’s not perfect. Lectric, more than many brands, makes you well aware of cords. While the wiring up front is well-organized, nothing is internally threaded. It folds at two points—at mid-frame and the handlebars—and it frankly takes some practice to align pedals, handlebars, and wheels just right. You’ll also need a bungee cord (or something similar) to keep everything nice and tight if you want to move the bike while folded (see below). But it does get small enough to go into a typical car trunk—not a Miata, let’s not get crazy. It is, however, a heavy 62 pounds (69 unless you scrap the battery).
-
-Heather Kuldell-Ware
+The Brompton Electric G Line doesn’t look like your average e-bike—and that’s the point. This is the electrified version of Brompton’s iconic folding bike, designed for people who need a compact ride that’s easy to stash indoors or carry onto public transit. It folds down smaller than anything else in this roundup, and hides its motor and battery inside a clever front-mounted bag that clicks on and off the frame. It’s a refined solution for riders who live in apartments, juggle multi-leg commutes, or just don’t have a safe spot to lock up a full-sized bike.
-At about 43 pounds, the Electric G Line is heavy for Brompton but very light for an e-bike, especially a folding one. Its signature tri-fold is among the fastest folding bikes: pivot the rear wheel under, collapse the main frame, and fold down the handlebars. The whole process only takes a couple of minutes, and the rear rack has wheels that let you roll the folded bike rather than lug it around. Skilled unfolders can kinda flick the bike open, but my short stature never got the hang of it—or it could be the G Line’s larger 20-inch wheels. Still, for people who go from bike ride to subway, the whole package rolls easily through a station and can slide under a desk once you get to an office.
-Despite its small size and quirky looks, the G Line rides like a much bigger bike. The 250W rear hub motor is quiet and natural-feeling, giving a smooth assist that enhances your pedaling without ever lurching forward. It’s paired with a 345Wh battery and a four-speed drivetrain that shifts cleanly—even if you might wish for an extra gear when really pushing. The high-volume Schwalbe tires soak up most road chatter, and the stretched frame geometry gives it a stable, planted feel. On paved streets and smooth trails, it feels confident and composed. Gravel is more of a backup plan; the G Line can handle light dirt or hardpack, but without suspension, rougher terrain sends vibration straight to your hands.
-The cockpit is minimal, and that can be a blessing or a quirk depending on your style. The small color display looks great, and you change pedal assist level by rocking the screen up or down. However, so many control units use physical buttons or touchscreens that this movement isn’t necessarily intuitive. You can also change assist levels from the battery bag or via the Brompton app, but neither is a fast mid-ride adjustment. On a full battery with max assist, it delivered over 27 miles of city and trail riding in testing, and it steps down its support gradually as the battery drains. Even fully unpowered, the bike is easy to ride thanks to its well-balanced frame and drivetrain.
-The G Line isn’t a casual purchase—it starts around $4,950—but it’s not built for casual needs. It’s a splurge for riders who want the convenience of a folding bike with the ride feel of something much larger, and who plan to use it as part of everyday life. If your bike lives inside with you, travels on trains, or gets folded twice a day, this one earns its keep. As we explained in our full review, the G Line makes few compromises for something this compact, and still manages to be fun, functional, and unexpectedly fast.
-
If you’re still deciding what to buy (or you just want to nerd out), these guides pair well with the deals above:
+The Heybike Mars 3.0 is built for weekend wanderers, RV adventurers, and anyone who’d rather be bouncing down a trail than weaving through traffic. With 4-inch fat tires and full suspension, it turns cracked pavement and chunky gravel into something closer to a suggestion than a challenge. It’s less about fitting into tight spaces and more about blasting out into wide-open ones.
-Twist the throttle or tap the pedals, and the Mars 3.0 surges forward like it’s been waiting for a greenlight at a race track. In Eco mode, pedaling feels effortless, and hills practically vanish. Kick it into Boost, and pedaling becomes optional. The plush suspension softens every hit, giving even rough trails a floaty, playful vibe. It’s the kind of ride that makes you seek out the bumpy route just for the fun of it.
-Yes, it folds, but you’ll need to mean it. At around 70 pounds, the Mars 3.0 is hefty, and the folding process—collapsing the frame and dropping the handlebars—is made trickier by its bulk and a center hinge that started out pretty stiff. There’s a built-in stand to keep stress off the drivetrain, but lifting it into a car is a two-person job for most people. It fit in a hatchback, barely, and would be more at home rolling into an RV or the back of a pickup.
-You’ll also need to keep track of the required key, and in fact, the Mars 3.0 features a multilayered security system that lets you choose between unlocking the bike with the app, PIN code, or NFC card. It feels like overkill until you remember this bike is basically a joyride machine, and Heybike clearly doesn’t want it rolling away without you.
-The post Adorama just dropped prices on Canon cameras and lenses by up to 30% appeared first on Popular Science.
-]]>The post Backcountry is blowing out hiking bags, backpacks, and luggage for up to 65% off during this clearance sale appeared first on Popular Science.
-]]>If you think of folding as a way to bring your bike to the trail—not necessarily store it under your desk—this one makes a strong case. As we explained in our full review, the Mars 3.0 trades sleekness for capability, and for the right kind of rider, that’s exactly the point.
-If you think a rugged bag might be overkill for your needs, just remember what happens to a suitcase when you check it.
+
Heather Kuldell
Osprey Arcane WP Roll Top 18L Pack is down to $84.00 (65% off). The roll-top design is built for quick access and a little extra flexibility when you overpack, and the “WP” in the name is there for a reason when the sky decides to get dramatic.
+The Velotric Fold 1 Plus answers the question, “Can a bike be chill and still haul?” with a confident yep. Its 750W rear hub motor (1,100W peak) rockets you off the line, while a 624Wh battery delivers an eyebrow-raising 68 miles on pedal assist. That’s “all-day adventure” territory—without the sore legs.
+One size really does fit all here (as our full review reveals): the ultra-low step-through frame welcomes riders from 4’9” to 6’5” and keeps cargo (up to 120 pounds on the rear rack) stable and steady. The ride is pure cush—front suspension, plush saddle, upright stance, and chunky 20×3-inch puncture-resistant tires soak up bumps so you can focus on grinning.
+ + + +Commuter cred? Fully earned. Full fenders, a 130-lux aimable headlight, brake-activated rear light with turn signals, hydraulic disc brakes, and even a USB-C port to juice your phone mid-ride. It folds to 37.8 x 19.7 x 33.5 inches—compact enough for SUVs and RVs—while a built-in stand and velcro strap keep the package neat. Though it would be bulky if you’re trying to go from trail to train.
-Here’s the kicker: you can tune it to your mood. Swap between torque and cadence sensors, tweak top speed up to 28 mph (or dial it down for the kids), and track every ride through the Velotric app—with Apple Find My as your digital safety net.
- -Fast, comfy, and ridiculously versatile, the Fold 1 Plus isn’t just a folding bike—it’s your ticket to go farther, faster, and have more fun doing it. A do-it-all folder for riders of almost any size, this e-bike aims to (and mostly does) fit nearly everyone’s needs.
+ + + +
Eagle Creek Cargo Hauler 90L Duffel Bag is down to $75.60 (60% off). Ninety liters is the ‘throw it all in and go’ size—ideal for road trips, car camping, or lugging awkward gear to the gym without playing Tetris.
+Tony Ware
Db Ramverk Pro 32L Backpack is down to $147.58 (60% off). At 32 liters, it’s big enough for a laptop, a lunch, and a light jacket (or a change of clothes for a weekend), without feeling like you’re hauling a suitcase on your back.
- - - -The Urtopia Carbon Fold 1 is a shockingly delightful but diminutive Shimano Altus 8-speed commuter that folds up fast and rides even faster. Thanks to its brightly painted carbon fiber frame and fork (the company’s signature material, Saffron Yellow colorway shown above), this bike weighs just 29 pounds. That makes it light enough to toss into small car trunks or an RV for road trips, camping, or other overlanding adventures. And makes it a dream if you live in a multi-story walkup and/or need to factor subway rides into your commute. Despite its compact build (which arrives fully assembled), it can support riders from 5’1’’ to 6’1’’ and up to 220 pounds in total weight, though taller or long-legged riders may feel somewhat cramped.
-Little details make a big difference: Built-in magnets keep the bike securely folded while you move it around—no awkward flopping. Heavy-duty latches lock it back into riding position. Cable management is clean. A central cutout serves as a handle and place to thread your chain, so no one can fold the bike off its lock.
-Out on the road, the 500W peak rear hub motor and 42Nm of torque provide quick, zippy acceleration, allowing you to reach speeds of up to 20mph. Its low standover height makes it super-easy for frequent stopping and standing during city rides. It also has a short wheelbase, making it excessively nimble—great for dodging cars illegally parked in the bike lane and weaving through potholes, cones, or people staring at their phones. Plus, the TEKTRO hydraulic disc brakes are responsive. It’s surprisingly fun for something whose main function is to be practical.
-The 252Wh battery is cleverly hidden in the seat post (which can be fully removed for charging/storing … or to deter thieves, because a bike with no seat is just an extremely inconvenient scooter). It powers the motor, but also the color screen and integrated headlight/taillight. It feels like it’s designed for several short jaunts rather than significant mileage; however, as the published 40-mile range seems optimistic, especially on assist levels above Eco (Touring mode felt closer to the 20s).
-My version two wishlist includes a more sensitive torque sensor and a bigger battery, but for anyone short on space—or anyone who wants a travel bike without messing with a rack—the Carbon Fold is a blast. The Carbon Fold 1’s recommended retail price is $2,500, but it has been consistently on sale for $1,600.
-
The Ride1Up Portola has a big ol’ motor—750W, the largest of this roundup. It also features a front suspension fork, 8-speed drivetrain, hydraulic brakes, and a muscular welded rear rack that can hold up to 130 pounds. These details are surprising to find on a folding e-bike and downright shocking to find on one that costs less than a grand.
-The Portola offers a lot to like, especially at the price point. Sturdy 20-inch by 3-inch tires and a front suspension fork work together to keep the rider relatively comfortable. There’s only one frame size, which Ride1Up calls “one size fits most,” or in this case, means riders from 4’10” to 6’4”—though taller riders or long-legged ones note they’d like a little more extension when they pedal.
-The Portola initially starts with a 10.4Ah battery, but an upgrade to 13.4Ah is only $100 more. With five pedal-assist levels and a throttle, you might want the extra juice. The range is up to 40—or 45 with the larger battery. The e-bike also can be switched between Class 1, 2, or 3, depending on whether you want to limit or unleash a potential top speed of 28 mph. And here’s one very simple but very nice touch that many folding bike makers overlook: The Portola has a small velcro strap to secure the bike when it’s folded. It takes some fussing to get the wheels and handlebars just right, but folding bike owners frequently add their own bungees or straps because nothing was included.
-Usually, a search for an e-bike begins with sticker shock, especially if you don’t ride other bicycles. You can find budget electric bikes under $1,000, though models quickly get into the multiple thousands. Expect to find more powerful motors with more torque, larger batteries, and frames made of higher-quality, often lighter-weight materials as the price climbs. They’re like cars: You can find a reasonably priced, reliable model or spend serious bucks on high-end components, luxury features, and eye-grabbing designs. While the options may be daunting, there is a model out there to suit your tastes and budget, whether you’re looking for the best electric commuter bike or the best fat tire electric bike.
-It’s also worth checking whether your state offers tax credits or rebates for e-bikes to encourage adoption.
-E-bike classes help define how fast your bike can go with motor assist and where you’re legally allowed to ride. This matters a lot if you plan to ride on bike paths, public trails, or shared-use routes. However, the rules will vary from state to state and from locality to locality. Before buying, check your local laws because some states treat e-bikes like regular bikes, while others (like Alaska and New Mexico) regulate them more like mopeds. (Check out the non-profit advocacy group People for Bikes’ guide for state laws.)
-To make this even muddier, many e-bikes allow the owners to change classes through the display or an app. This is usually called “unlocking,” but it’s a simple setting that lets you set a top speed of 20 or 28 miles per hour. Similarly, some e-bikes have throttles that can be enabled, disabled, or totally removed.
-| Class | How it works | Assist limit | What it means for you |
| Class 1 | Pedal-assist motor only | Stops assisting at 20 mph | Usually allowed on bike paths and trails |
| Class 2 | Throttle and pedal assist | Stops assisting at 20 mph | Throttle use may be restricted in some areas |
| Class 3 | Pedal-assist motor only | Stops assisting at 28 mph | Sometimes banned from shared-use paths and may have age and/or helmet rules |
Most folding e-bikes use hub motors, usually built into the rear wheel. They’re simple, affordable, and beginner-friendly. The power comes on smoothly—more like a steady push than a sudden surge—which makes them great for casual riders or flat city commutes.
-Mid-drive motors, which sit at the cranks, are more efficient and offer better torque for climbing hills or hauling loads. They feel more like traditional cycling because they work with your gears. You’ll find them less often on folding bikes due to their cost and complexity, but if you do, it’s a premium upgrade.
-Motor power is usually measured in watts, ranging from 250W to the legal U.S. max of 750W. More watts can mean more speed and stronger acceleration, but torque is what really helps with hill climbs and quick takeoffs. If you’re in a hilly area or want zippier starts, look for motors with high torque ratings.
-Range is one of those features e-bike makers love to hype—and it’s getting better all the time. These days, even folding models often boast 60, 70, or even 85 miles on a single charge without needing a second battery. But actually hitting those numbers? That depends.
-Published ranges usually list a minimum and a maximum, and the real-world number lives somewhere in between. Terrain, rider weight, cargo, temperature, tire pressure, and how hard you push the motor (pedal assist vs. throttle, low vs. max level) all make a difference. For example, my commute in the summer takes a quarter of my fully charged battery, but in extreme headwinds or freezing temps, it can easily eat up more than half of my battery. Same ride, same battery, different conditions. If your planned ride is 15 miles round-trip, don’t buy a bike with a 15-mile max and hope for the best—get something with some buffer.
-Removable batteries are especially helpful for folding bikes. You can charge them inside, swap in a spare for long rides, or remove them for storage. Integrated batteries keep things sleek and tamper-resistant, but mean bringing the whole bike to an outlet. Bigger batteries weigh more, but they also give you more flexibility and less range anxiety.
-One last thing: battery safety isn’t optional. Look for certifications like UL 2849 (entire system), UL 2271 (battery only), or EN 15194 (European standard). These show that the battery’s been tested against overheating, impact, and general misuse.
-Folding e-bikes can be game-changers for commuters, but they come with a few trade-offs. They’re usually more expensive than non-electric bikes and heavier than standard folders. You’ll also need a place to charge—or look for a model with a removable battery you can charge indoors. Over time, batteries degrade and need to be replaced. And while most bike shops can service standard parts, proprietary systems or wiring may need brand-specific help. Folding frames also introduce additional wear points, such as hinges, latches, and clamps, which may loosen over time and with repeated use.
Yes. Many folding e-bikes advertise up to 40 to 80 miles of range, but real-world numbers depend on terrain, assist level, rider and cargo weight, and weather. If you ride mostly flat roads on low assist, your battery will stretch much farther than if you’re using throttle up steep hills. As for comfort, smaller wheels and minimal suspension mean you’ll feel more of the road, so “long distance” might come with more bumps.
Folding e-bikes generally weigh between 35 and 70 pounds. Lighter models made with carbon fiber or smaller motors can dip below 35, while more powerful or accessory-loaded models hit the upper end. They’re still easier to maneuver than traditional e-bikes thanks to their compact shape and smaller wheels—but lifting one into a trunk or up stairs? That’s where the real test comes in.
In most cities, yes. Transit systems usually allow folding bikes on board, especially if they’re compact and folded before boarding. Just be prepared to carry or roll it quickly, and avoid peak commute times if the bike takes up space. Always check local transit rules—some systems restrict e-bikes by weight, battery size, or class.
Folding electric bikes are a funny sort of transportation. They’re purpose-built to be easy to transport or store, which may mean some compromises in riding comfort. However, this category of bikes has come a long way, incorporating fatter tires, more suspension systems, and hydraulic brakes for superior stopping power, along with more options than ever before. Find the model that fits—literally—into your apartment, car, or commute, and enjoy the ride.
+The post The best folding electric bikes for 2026, tested and reviewed appeared first on Popular Science.
+]]>The post Black hole space volcano erupts after 100-million-year nap appeared first on Popular Science.
+]]>A black hole isn’t constantly devouring its unfortunate galactic neighbors. In fact, it can lay dormant for eons. But when one of these gargantuan entities finally reawakens, the resulting display isn’t only impressive—it illustrates the chaotic battle between its own cosmic forces and the pressures of the universe around it.
-One of the most striking glimpses of such an event was recently captured by a team led by Shobha Kumari at India’s Midnapore City College. Supermassive black holes rarely emit magnetized, radio-emitting plasma, but according to Kumari, J1007+3540 is especially unique. After analyzing data collected by the Low Frequency Array (LOFAR) in the Netherlands and India’s Giant Meterwave Radio Telescope (uGMRT), researchers say there is undeniable evidence of multiple eruptions stretching deep into the universe’s past.
-“It’s like watching a cosmic volcano erupt again after ages of calm—except this one is big enough to carve out structures stretching nearly a million light-years across space,” Kumari said in a statement.
-
Radio imaging revealed a small, bright interior jet indicative of J1007+3540’s internal forces revving back up. But surrounding this illumination is an older layer of fading, distorted plasma from previous active eras.
-“This dramatic layering of young jets inside older, exhausted lobes is the signature of an episodic [active galactic nucleus]—a galaxy whose central engine keeps turning on and off over cosmic timescales,” added Kumari.
-The supermassive black hole’s forces are unfathomably strong, but the influences of the giant galaxy cluster around it can’t be ignored either. The surrounding plumes of incredibly hot gas exert their own pressure, in this case even higher than most other radio galaxies. These cosmic regions then mangle and distort J1007+3540’s plasma jets as they race outward. For example, LOFAR’s imaging depicts a compressed northern lobe that is curving to one side due to the galactic gas. Complimentary data from uGMRT reveals a very steep radio spectrum indicative of old, weakened plasma particles.
-“J1007+3540 is one of the clearest and most spectacular examples of episodic AGN with jet-cluster interaction, where the surrounding hot gas bends, compresses, and distorts the jets,” added Surajit Paul, a study coauthor and astronomer at the Manipal Center for Natural Sciences in India.
-Moving forward, Kumari, Paul, and their collaborators hope to employ higher-resolution equipment to peer into J1007+3540’s core. In doing so, researchers can better chart how the black hole’s reignited jets travel through the galaxy cluster, as well as how often such events actually occur.
+The post Black hole space volcano erupts after 100-million-year nap appeared first on Popular Science.
+]]>The post Congress trying to make it easier to unsubscribe (again) appeared first on Popular Science.
+]]>“Subscription traps have become an accepted inconvenience for American consumers. Too many companies rely on deceptive business models that force people to jump through hoops just to cancel,” Representative Amodei said in a joint statement. “We all live busy lives, and remembering to cancel after a free trial shouldn’t be another item on the to-do list.”
-Surprise subscription renewal fees are difficult enough to track in everyday life, but passing legislation to rein in the costly annual expenditures seems even harder to accomplish. After years of bipartisan lobbying efforts, the Federal Trade Commission (FTC) finally announced a “click-to-cancel” rule in 2023. However, courts nullified the FTC ruling on a technicality in July 2025–just days before it was set to go into effect. Since then, the fight has continued to fix a broken system that regularly costs households as much as $200 a year in sneaky, unwanted subscriptions.
-“During a time when everything is more expensive, corporations are cashing in subscription models that rely on a consumer forgetting to cancel a free trial,” Rep. Takano added. “Corporations haven’t put into place commonsense reforms like ending a subscription just as easily as signing up for one.”
-If enacted, the new law would require all companies to receive explicit opt-in confirmations from customers before charging them full price after the end of a free or discount-rate trial. The sign-up process must also “clearly and conspicuously” explain subscription terms, and make it as easy to cancel as it was to initially enroll.
-As The Guardian first reported on January 13,, Rep. Takano has regularly advocated for similar legislative action since 2017. His most recent attempt in 2021 only garnered Democratic support in the House, although a companion Senate bill has had bipartisan backing for years.
-So far under the Trump administration, the FTC has selectively enforced certain subscription fee-related actions, such as a $7.5 million settlement with the ed-tech company Chegg in September 2025. Comprehensive reforms have yet to materialize, however. The FTC quietly published a consumer group-led click-to-cancel petition in December 2025, and accepted public comments on it until January 2, 2026.
-With the Unsubscribe Act, legislators hope to bypass the ongoing regulatory hold-up.“This time…there’s interest across the aisle,” explained Rep. Takano.
+The post Congress trying to make it easier to unsubscribe (again) appeared first on Popular Science.
+]]>The post Mummified cheetahs could help save the critically endangered big cats appeared first on Popular Science.
+]]>Cheetahs once lived in much of Africa, and Western and Southern Asia, but their range in Asia has decreased by 98 percent over the past several thousand years. As a whole, cheetahs only occupy nine percent of the territory they used to. On the Arabian Peninsula (Saudi Arabia, Yemen, Oman, United Arab Emirates, Qatar, Bahrain, and Kuwait) cheetahs were found as recently as 1977, when a hunter in Oman killed an adult female cheetah. However, the animals are now considered locally extinct in the region. There are five cheetah subspecies, and the Asiatic cheetah (Acinonyx jubatus venaticus) is believed to have been the only subspecies that lived in present-day Saudi Arabia. The Asiatic cheetah is currently considered critically endangered, with only one small wild population remaining in Iran. Whether or not cheetahs could be reintroduced in the area is debated, largely due to continued habitat destruction.
-During digs in five caves in 2022 and 2023, field biologist Ahmed Boug from Saudi Arabia’s National Center for Wildlife and his team uncovered skeletal remains of 54 other cats and seven naturally-mummified cheetahs. In desert regions, natural mummification is common due to the dry conditions where fungi and bacteria can’t thrive on a decomposing corpse. Deserts also have the right mineral content in the sand for preservation.
-The oldest of the cat skeletal remains date back about 4,000 years ago. The mummified cheetah remains were much younger—ranging from only 130 to 1,870 years ago.
-They also extracted complete genome sequences from three of the seven mummified cheetahs. According to the team, this is the first time that this kind of genetic material extraction has been done on naturally-mummified big cats. While the most recent specimen is genetically closest to the Asiatic cheetah, the two older specimens are more similar to the Northwest African cheetah (Acinonyx jubatus hecki). This critically endangered species is found in the Sahara and several countries in northwestern Africa.
-
The authors say that their results indicate that cheetah subspecies could support the re-establishment of cheetahs in Saudi Arabia. An increased available genetic pool from other subspecies would make rewilding efforts more feasible, as subspecies can generally interbreed and create fertile offspring that further the population. The team also suggests that their method shows that ancient DNA records from similar specimens can inform future reintroduction plans for other endangered species.
The post Mummified cheetahs could help save the critically endangered big cats appeared first on Popular Science.
+]]>The post Amazon has just about every Anker docking station, power bank, and portable power station on sale right now appeared first on Popular Science.
+]]>If your laptop is doing its best impression of a desktop every day, this is the kind of dock that makes the whole setup feel intentional. You get a ton of ports in one box, dual 4K monitor support, and up to 160W of power delivery so you can park your laptop, plug in, and stop juggling dongles.
-
-Anker
+This is the move for people who are fully integrated into the Apple ecosystem. It’s a 3-in-1 stand that does Qi2 wireless charging (up to 25W) plus spots for your earbuds and watch. It’s the sort of thing that makes nightly charging feel less like a scavenger hunt.
-For outages, tailgates, or job sites, a big power station is basically a silent generator you can lug anywhere. The SOLIX F2000 has a huge 2,048Wh-class battery and enough output to run appliances and tools then recharge your smaller gadgets on top. This is one of the steepest discounts in the list, so it’s worth a look if you’ve been waiting for a real price drop.
-The post Amazon has just about every Anker docking station, power bank, and portable power station on sale right now appeared first on Popular Science.
+]]>The post Anker Prime Power Bank (20K, 200W) review: Plenty of power for laptops and more appeared first on Popular Science.
+]]>
+ Stan Horaczek
+The Anker Prime 20K is roughly the size of one of those skinny Diet Coke cans, but it’s a squared-off soda can with real heft. It measures 1.73 × 1.99 × 5.79 inches and weighs 1.12 lbs (510 g), which makes it easy to stash in a backpack or camera bag—and a little silly to carry in a jacket pocket unless you’re committed.
-Build quality is a standout. It’s a dense block of hardware rather than a hollow plastic shell, which matters when you’re throwing it into bags, bouncing between locations, or generally living the clumsy reality of travel.
-Anker’s display is also genuinely helpful. Instead of the old system of four mystery LEDs, you get clear readouts for charge level, real-time wattage in/out, and time-to-empty or time-to-full estimates. When you’re trying to decide whether you have enough juice for a flight, a shoot, or a long coffee shop session, that kind of clarity is the difference between guessing and knowing. The shiny surface on the front of the device does pick up smudges and fingerprints easily, but that doesn’t matter much to me.
-Port layout is straightforward and practical: two USB-C ports and one USB-A across the top. In day-to-day use, I found it easier to lay it flat with the screen facing up so it’s less likely to tip if a stiff cable gets bumped.
-In the several weeks I spent with this device, I used it to fuel my 14-inch MacBook Pro with an M3 Max chip inside. I also used it to charge an iPhone 17 Pro Max, a DJI drone, a Canon R5 Mark II camera, and other devices. In each case, I was able to hit maximum charging speeds with each device and even keep up with the MacBook Pro output during high-intensity tasks like exporting files from Adobe Lightroom.
-You can absolutely buy the battery by itself and be happy. The main story here is that it refills fast enough (up to 100W input) that it’s easy to keep topped off between sessions—plug it in while you eat lunch, and you’ll get a meaningful chunk of capacity back.
-If you want a cleaner workflow that’s always ready, Anker also sells a separate $99 charging base that uses pogo pins and charges the bank at the same 100W rate. It’s not required, but if this power bank is part of your daily desk kit, docking it like a gadget from the future is undeniably convenient.
-The “220W” in the name is the combined ceiling across ports. In practical terms, it means you can run a laptop at serious speed and still charge other devices without everything collapsing into “slow charge” mode.
-Thermals are solid, too. High-wattage power banks often get uncomfortably warm when they’re actually delivering big power for long stretches. This one stayed surprisingly composed during sustained use, which inspires more confidence than raw spec-sheet bragging ever could. It felt noticeably warm to the touch when it was charging up its own internal batteries, but it never got hot.
-The companion app is a nice touch, but I didn’t find myself using it all that often during normal use. The built-in screen typically told me what I needed to know.
-The post Backcountry is blowing out hiking bags, backpacks, and luggage for up to 65% off during this clearance sale appeared first on Popular Science.
-]]>The post 600-year-old Viking shipwreck is the largest of its kind appeared first on Popular Science.
-]]>At this price point, I would have liked an integrated cable and possibly wireless charging as it requires a separate cable to input and output power. That’s not super common with models in this class, so it’s not a point against this model, but both features would have been welcome.
+ +“The find is a milestone for maritime archaeology,” excavation lead Otto Uldum said in a statement, adding the boat now offers a “unique opportunity to understand both the construction and life on board the biggest trading ships of the Middle Ages.”
+The Anker Prime 20K sits in a sweet spot: smaller and lighter than the max-capacity carry-on limit bricks, but far more capable than the average travel power bank.
-Named after the channel in which it resides, Svælget 2 was longer than two school buses and nearly as wide as one. Archaeologists analyzed tree rings in its timber to estimate that Viking artisans constructed the cog in the Netherlands around 1410 CE. Almost 40 feet of sand and silt had buried the ship since it sank centuries ago, protecting much of it from underwater conditions that normally destroy similar relics. Svælget 2 is so well-preserved that it still contains evidence of its rigging.
+| Feature | Anker Prime 20K (220W) | EcoFlow RAPID Pro (27,650mAh) | Shargeek Storm 2 | Anker 737 (24K, 140W) |
|---|---|---|---|---|
| Capacity | 20,100mAh (~72Wh) | 27,650mAh (99.54Wh) | 25,600mAh (93.5Wh) | 24,000mAh |
| Max Output | 220W total (140W single USB-C) | 300W total (up to 140W single) | 100W (single-port fast charge class) | 140W max total |
| Max Input | 100W | 320W (with matching station) | 100W in/out | 140W two-way charging class |
| Ports | 2× USB-C, 1× USB-A | 4 total (incl. built-in retractable USB-C cable) | USB-C + USB-A + DC + more | 2× USB-C, 1× USB-A |
| Weight | 1.12 lb (510g) | 699.4g | 591.3g | 630g |
| Unique Feature | Optional pogo-pin charging base + strong on-device display | Built-in retractable cable + modular accessories | “Gadget-core” transparent design + DC output | More affordable entry to 140W-class charging |

| Category | Specification |
|---|---|
| Model | Anker Prime Power Bank (20K, 220W) |
| Capacity | 20,100mAh (~72Wh) Carry-on compliant under 100Wh |
| Ports | 2× USB-C, 1× USB-A |
| Single USB-C Max | Up to 140W |
| Combined Max Output | Up to 220W total |
| Recharge Speed | Up to 100W (USB-C) / Up to 100W (charging base) |
| Connectivity | Bluetooth (Anker app) |
| Dimensions | 1.73 × 1.99 × 5.79 inches |
| Weight | 1.12 lb (510g) |
“It is extraordinary to have so many parts of the rigging. We have never seen this before, and it gives us a real opportunity to say something entirely new about how cogs were equipped for sailing,” said Uldum.
+Details like Svælget 2’s rigging will help archaeologists better understand how its comparatively small crew controlled such a large ship during its many voyages throughout the region.
+If you’re truly a power user—or you just have a laptop that laughs at most power banks—this Anker Prime makes a compelling case. The headline isn’t just big number wattage. It’s that the wattage shows up in real use: no slow-charger warnings, no weird throttling, and no all-night recharge penalty once you’ve drained it.
-“The finds show how something as complex as the rigging was solved on the largest cogs,” Uldum added. “Rigging is absolutely central to a medieval ship, as it makes it possible to control the sail, secure the mast and keep the cargo safe. Without ropes and rigging, the ship would be nothing.”
+If you only need to charge a phone, this is unnecessary weight and money. But for photographers, frequent travelers, and anyone trying to keep a MacBook and a few other devices alive away from the wall, the Prime 20K feels like the first power bank that actually behaves like it belongs in a modern USB-C workflow.
+The post Anker Prime Power Bank (20K, 200W) review: Plenty of power for laptops and more appeared first on Popular Science.
+]]>The post Is turbulence really like Jello-O? Pilots weigh in. appeared first on Popular Science.
+]]>In addition to these materials, researchers are now finally able to confirm that some Viking cogs featured tall wooden platforms at both the bow and stern known as castles. Although historical illustrations have long suggested these structural features existed, no clear archeological evidence substantiated the artwork.
+“That is you flying through the sky,” she tells the camera. “There’s pressure from the bottom, pressure from the top, from the sides, pressure coming from everywhere.”
-“We have plenty of drawings of castles, but they have never been found because usually only the bottom of the ship survives,” said Uldum. “This time we have the archaeological proof.”
+She taps the top of the Jell-O, making the suspended napkin ball quiver.
-
“This is what happens when there’s turbulence,” she says. “You feel the plane shaking, but [it] is not just going to fall down.”
-In the case of the stern (or back) castle, archaeologists identified details of a covered deck that provided shelter and protection for the cog’s crew. Compared to previous shipwrecks, Svælget 2 features an estimated 20 times as much material to analyze.
+The video is by Australian TikToker Anna Paul. Just days after she uploaded it in June 2022, it had accumulated more than 15 million views and thousands of comments from people saying it had cured their fear of flying. Paul says she got the tip “from a real pilot.”
-“It is not comfort in a modern sense, but it is a big step forward compared to Viking Age ships, which had only open decks in all kinds of weather,” Uldum explained.
+But how accurate is the analogy? Is turbulence really like Jell-O?
-Although its discovery doesn’t revise researchers’ understanding of medieval seafaring trade, Svælget 2 illustrates just how much funding, resources, and technological knowledge was required to construct such a vessel.
+“We now know, undeniably, that cogs could be this large—that the ship type could be pushed to this extreme,” said Uldum.
-The post 600-year-old Viking shipwreck is the largest of its kind appeared first on Popular Science.
-]]>The post Test your apple farming skills with this free video game appeared first on Popular Science.
-]]>Environmentalists and sustainable food system advocates alike have long stressed the importance of supporting small farms, but it’s easier said than done. Despite the clear health and environmental sustainability benefits, shopping local generally means spending much more money—often at seasonal markets. Overall, this makes it especially difficult for low-income families and those living in food deserts to access quality ingredients.
+The Jell-O analogy is the brainchild of former airline captain Tom Bunn, who is now a licensed therapist and founder of the SOAR program, which helps people overcome their fear of flying. Over years of listening to clients express their worries, Bunn realized that explaining the science of flight was often not enough to reassure people that flying was truly safe.
-The cost problem isn’t from price-gouging farmers, but the state of the overall industry. The vast majority of farms in the United States are struggling. The U.S. Department of Agriculture (USDA) estimates around 88 percent of the industry falls under the “small operation” designation, meaning they earn less than $350,000 annually in gross sales. Factor in costs, and less than half of U.S. small farms actually generate any profit at all.
+“Clients would say they look up in the sky and see a plane and it doesn’t look like it should be there,” he says. “It should fall because they don’t see anything holding it up.”
-
Because these nervous flyers lacked understanding of the forces holding a plane in the air, they would feel the jolts during turbulence and panic, imagining the plane was about to drop from the sky. To help them overcome this fear, Bunn looked for an analogy that would convince the emotional part of their brains that the plane was not going to fall.
-In 2023, researchers at the University of Vermont built a simulation game called Race Against Rot to illustrate the uphill battles facing farmers. In the game, players took on the role of a small apple orchard operation and worked to maintain profitability through multiple policy scenarios. These included opting for farmers market or wholesale distribution options, paying a universal basic income to their workers, and supporting localized food hubs.
+He found it by asking them to recall the familiar sense of air resistance growing as speed increases.
-To incentivize the over 1,000 people who participated in the game, players could earn actual cash payouts of $1 per every $40,000 of orchard profits. But instead of walking away with the most pocket change possible, most Race Against Rot players opted to make less money in order to help supply their neighbors with healthy fruit. They called this concept of fostering local wellbeing “community nourishment.”
+“If you walk across the room, air doesn’t slow you down,” he says. However, “if you’re in a car and push forward with your hand out the window, it feels about the same as putting your hand in a swimming pool and pushing against the water.”
-“We found that there was a very, very strong commitment to a value structure around community nourishment,” principal project investigator Amy Trubek explained in a recent university profile.
+Appealing to this logic, Bunn would ask his clients to imagine the air getting thicker as the plane accelerated down the runway. By the time they were in the air, it was the consistency of Jell-O, supporting them on all sides.
-Food systems researcher Carolyn Hricko, co-author of a recent policy report based on the team’s findings, said it was “very heartening” to see random players adopt altruistic practices even during a simulated experience.
+Bunn acknowledges that the analogy is not completely accurate scientifically. But it is an emotionally resonant way of visualizing the forces that hold a plane up during flight.
-“When they walked in the shoes of a farmer, [they] came out the other side saying they’re willing to support community nourishment alongside their ability to stay in business, theoretically,” she said.
+“Technically, it involves Bernoulli’s theorem,” he says. “It has to do with the fact that the bottom of the wing is pretty much flat and the top is curved.”
-Trubek and Hricko know that reality is far more complicated than a video game simulation. People often behave more selfishly when consequential amounts of money—not to mention livelihoods—are on the line, and the global agricultural industry can’t be distilled down to a hypothetical apple orchard. At the same, most of today’s food distribution systems aren’t designed with this concept of community nourishment in mind. By beginning to consider the social implications of a game like Race Against Rot, policy makers could discover new and effective ways.
+
“Equitable food systems solutions can only emerge from questions posed and data gathered that honestly reflect the structure and function of both our current food system and any vision for a better one,” the policy report authors wrote.
+Thanksfully, that vision of a better system is something most people want to see realized.
+Daniel Bernoulli was an 18th-century Swiss mathematician and physicist who formulated several key concepts in fluid dynamics. The most famous is Bernoulli’s principle, which states that an increase in the speed of a fluid decreases the pressure exerted by the fluid.
-“The public really cares about community well-being and the success and livelihoods of farmers. That’s great news,” added Hricko.
-The post Test your apple farming skills with this free video game appeared first on Popular Science.
-]]>The post Snow fleas use their tail to jump around the ice appeared first on Popular Science.
-]]>In a river, for example, water speeds up as it passes through narrower sections. The water pressure is lower in these constricted areas, as the acceleration is caused by higher pressure behind the constriction than within it.
-Air behaves much like a fluid. When it encounters an obstacle, it compresses or speeds up as it flows around the object in its path.
-As a video taken at the Monomoy National Wildlife Refuge in Massachusetts shows, these little black specks bounce across the snow. While technically called springtails, snow fleas (Hypogastruna nivicola) are a springtail species active during winter. Snow fleas are generally found in groups and their dark-colored bodies are easily noticed against white snow. These ancient insects have been around 410 million years—making them older than dinosaurs.
+“When the plane runs into the air, the air that goes across the top of the wing has to catch up,” Bunn explains. Because of the curve on the wing’s top, the air “has to take a longer route, so the molecules spread out slightly. So, they don’t push as much on the top of the wing as on the bottom.”
-Springtails are found in habitats all over the world. According to the United States Fish and Wildlife Service, they typically show up on top of snow because colder temperautres slow their speeds down “just enough for us to notice their chaotic parkour routine.” That hopping move is done with a forked tail called a furcula that launches the bugs into the air. This long tail is typically tucked underneath the abdomen. However, if a springtail is disturbed or threatened, it will use the furcula to launch its body into the air like a spring. Their acrobatics are so impressive that they have inspired designs for leaping robots.
+As Paul says in her TikTok video, there is pressure coming from the air above and below the airplane. But the wing’s design means that the air pressure is greater below it than in the faster-moving air above it, pushing the wing upwards. This is the phenomenon known in aerodynamics as “lift.”
-They can also be found in soil, feasting on fungi, pollen, algae, or decaying organic matter, according to the University of Minnesota Extension. When they move through the soil, they create little pockets of air that help give plant roots oxygen, which helps keep them healthy. Eating decaying plant material helps break down organic matter into nutrients that the soil can use.
+“The faster you go, the more powerful the Bernoulli effect,” Bunn explains. This is why, as a plane flies through the air at nearly 600 miles an hour, the pressure under the wings holds it in the sky as securely as a napkin ball in Jell-O.
-Indoors, the jumpy critters are often found in areas with excess moisture, such as near plumbing leaks or poor drainage systems.
+Turbulence happens when blocks of air rub past each other at different temperatures, pressures or speeds. It can have many different causes, from thunderstorms to the centrifugal force of the earth’s rotation, which pushes bands of air outwards. Its strength ranges from mild, causing little more discomfort than a slight trembling, to severe, in which passengers or flight crew can be thrown around the cabin and risk injury if not wearing seatbelts.
+Fortunately, the arthropods are harmless. They don’t sting, bite, or suck your blood since they are much more interested in chomping up all of that nutritious plant matter.
-The post Snow fleas use their tail to jump around the ice appeared first on Popular Science.
-]]>The post Dead star emits perplexing shock wave for 1,000 years appeared first on Popular Science.
-]]>“We found something never seen before and, more importantly, entirely unexpected,” explained Simone Scaringi, a researcher at Durham University in the United Kingdom.
+But while strong turbulence can feel alarming, Patrick Smith, a commercial pilot and writer of the Ask the Pilot blog, says that “people tend to have a very exaggerated sense of what the airplane is actually doing.”
-As Scaringi and her team describe in a study published today in the journal Nature Astronomy, they first noticed curious signals from the white dwarf RXJ0528+2838 while analyzing images taken by Spain’s Isaac Newton Telescope. A white dwarf is what remains after the death of a low-mass star, and sometimes exists in a binary system with another stellar object. In this case, RXJ0528+2838 is orbited by a still-living star similar in size to our sun.
+“Airplanes have what we call positive stability,” he says. “When they’re disturbed from their position in space, by their nature they want to return to where they were.”
-During turbulence, every jolt down is matched by an equivalent jolt up, holding the plane steady on its course—as if it were suspended in Jell-O.
-In such cases, material from the active star is usually siphoned to the white dwarf to form a disk of debris around it. Some of this energy is then also hurled into space in what are known as outflows. But RXJ0528+2838 doesn’t feature a disk, so the dead star shouldn’t create such a curved, “bow shock” outflow or its resultant nebula—yet it does. What’s more, the white dwarf’s outflow has billowed for at least 1,000 years.
+“There has never been a plane crash from turbulence,” Paul says in her video. Is this true?
-“Our observations reveal a powerful outflow that, according to our current understanding, shouldn’t be there.” added Krystian Iłkiewicz, a study co-author at Poland’s Nicolaus Copernicus Astronomical Center.
+Bunn recalls one incident in the 1960s when a flight departing Japan’s Tokyo airport encountered severe turbulence off the side of Mount Fuji, causing it to suffer structural damage and crash into a forest. But, he emphasizes, such an incident would never happen today. For one, commercial jets would never fly so close to a mountain, knowing that these can disrupt air flows and cause strong forms of turbulence close to solid ground, where planes are naturally most vulnerable.
-To further investigate the cosmic anomaly, the team used the Multi-Unit Spectroscopic Explorer (MUSE) inside the European Southern Observatory’s Very Large Telescope. MUSE helped the researchers construct a detailed map of the bow shock and its composition, which they traced back to RXJ0528+2838 instead of an unrelated dust cloud or nebula.
+For another, improvements in airplane technology mean that planes are now much better constructed to withstand even the strongest forms of turbulence.
-The team confirmed that RXJ0528+2838 also possesses a strong magnetic field that allows it to gather material from its companion. While more examinations are needed, they believe it’s this magnetic field that can help explain the dead star’s strange behavior.
+During testing of modern airliners, “you can almost bend the wing double [in half] and it won’t break,” Bunn says. In real situations, “you never see even a tenth that much wing flex.”
-“Our finding shows that even without a disc, these systems can drive powerful outflows, revealing a mechanism we do not yet understand,” said Iłkiewicz, adding that their new study now “challenges the standard picture of how matter moves and interacts in these extreme binary systems.”
+So, is turbulence really like Jell-O? Not exactly. But if you’re a nervous flyer, perhaps the image can help reassure you that the only real dangers from turbulence can be solved by simply wearing a seatbelt.
-There are still many unanswered questions about this never-before-seen cosmic relationship. Importantly, the magnetic field Scaringi calls the white dwarf’s “mystery engine” doesn’t seem strong enough to generate the observed bow shock. Instead, the current field should power an outflow that only lasts a few hundred years. But with additional investigation, the astronomers hope to one day solve the discovery that no one saw coming.
+As Paul says: “You can just chill there. You’re just wriggling in jelly.”
-“The surprise that a supposedly quiet, discless system could drive such a spectacular nebula was one of those rare ‘wow’ moments,” said Scaringi.
-The post Dead star emits perplexing shock wave for 1,000 years appeared first on Popular Science.
-]]>The post A giant-footed bird showed up in a Massachusetts backyard. It didn’t belong there. appeared first on Popular Science.
-]]>In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
-Upon seeing this unique bird, an unidentified woman called the New England Wildlife Center in Weymouth, Massachusetts. The organization had never received a purple gallinule before. Priya Patel, wildlife medical director at the wildlife center, tells Popular Science that in Massachusetts, purple gallinules are exceptionally infrequent, with “a few reports of one or two up here in the last 10 years or so.”
+ +The post Is turbulence really like Jello-O? Pilots weigh in. appeared first on Popular Science.
+]]>The post Wikipedia’s 25 most popular entries of all time appeared first on Popular Science.
+]]>
January 15th marks the 25th anniversary of Wikipedia’s premiere, and the digital landscape around it is nearly unrecognizable. After two-and-a-half decades, the free encyclopedia encompasses over 7.1 million entries in English alone, most still written, edited, fact-checked, and maintained by tens of thousands of volunteers around the world. There are still plenty of issues with a website that runs under those parameters, but more often than not, a Wiki entry can serve as a starting point towards finding other helpful sources.
-According to the New England Wildlife Center, southern birds sometimes end up in Massachusetts. “During periods of strong storm systems and shifting low pressure these birds can get pushed off course and carried north along the coast,” the center writes.
+But what are most Wikipedia visitors interested in learning about? The website’s parent organization, the Wikimedia Foundation, provided Popular Science with a list of the top 25 most searched Wikipedia subjects of all time. While the Wikimedia Foundation says its data only goes back to 2008, it’s safe to say these remain the highest trafficked topics across the millions of entries.
+| Subject | Page Views |
| 1. List of Deaths by Year | 647,025,321 |
| 2. United States | 328,501,200 |
| 3. Donald Trump | 325,397,973 |
| 4. Elizabeth II | 253,385,102 |
| 5. India | 210,779,909 |
| 6. Cristiano Renaldo | 209,262,818 |
| 7. Barack Obama | 200,619,072 |
| 8. Elon Musk | 197,557,694 |
| 9. World War II | 196,185,039 |
| 10. United Kingdom | 180,986,829 |
| 11. Lionel Messi | 169,027,752 |
| 12. Michael Jackson | 168,519,508 |
| 13. Game of Thrones | 166,648,136 |
| 14. Adolf Hitler | 163,955,099 |
| 15. Eminem | 159,866,098 |
| 16. Taylor Swift | 157,243,638 |
| 17. World War I | 156,010,435 |
| 18. The Beatles | 153,857,741 |
| 19. Dwayne Johnson | 141,840,884 |
| 20. List of presidents of the United States | 138,880,465 |
| 21. Canada | 137,871,236 |
| 22. Lady Gaga | 137,724,118 |
| 23. Academy Awards | 137,543,219 |
| 24. Freddie Mercury | 134,515,769 |
| 25. List of highest-grossing films | 133,992,783 |
The purple gallinule in question, whom the staff did not name to avoid getting attached, arrived at the wildlife center majorly underweight and in a precarious condition. Thankfully, however, the team didn’t find any major injuries in their initial examination and X-rays.
+As it turns out, a lot of people wonder who died recently. Perhaps unsurprisingly, the list is mostly a mix of politics, pop culture, sports, and history—but it’s still more than enough to get you up to speed for your next trivia night.
-While it may seem that the best thing to do upon finding a struggling bird is feeding it as much food as possible, that is a dangerous move. If a starving animal eats a lot of food all at once, it can cause refeeding syndrome—when the stomach draws the limited remaining resources from the most vital organs, like the heart, brain, and lungs, too fast. This could lead to serious consequences, such as heart arrhythmias or brain seizures. This is why, among other reasons, the New England Wildlife Center doesn’t want the public to feed found animals before they have undergone an exam.
+As AI slop continues to flood search engines and generative media blurs the lines between reality and fiction, human-centric endeavors like Wikipedia are becoming increasingly critical for staying informed on everything from biomedical research and historical events, to…the Fraternal Order of Real Bearded Santas.
-
Wikipedia still faces its fair share of critics, some with very valid issues. Instead of a lack of sources, certain detractors are now claiming (without much evidence) that the encyclopedia is filled with supposed political biases. But as Wikipedia has shown so far, it’s probably up to the task of proving the naysayers wrong. There’s even a well-sourced entry about it.
+The post Wikipedia’s 25 most popular entries of all time appeared first on Popular Science.
+]]>The post Without forests, mosquitoes turn to human blood appeared first on Popular Science.
+]]>“This is why food must be introduced slowly to the animal so the organs have time to respond,” Patel says. “The best thing to do for these cases is fluid therapy, and rehydrating the patient often by giving injectable fluids.”
+Dr. Sérgio Lisboa Machado, a microbiologist from the Universidade Federal do Rio de Janeiro in Brazil, is the co-author of a study published today in the journal Frontiers in Ecology and Evolution on a potential link between deforestation and mosquitoes’ increasing preference for human blood.
-As the purple gallinule’s health improved, they collaborated with partners to decide how to best return the bird to its habitat. On January 8, the purple gallinule landed in South Carolina aboard a small private plane piloted and co-piloted by New England Wildlife Center volunteers, explains Patel. It made the journey with another fellow purple gallinule found in Vermont. After landing, the birds were picked up by Carolina Wildlife Rehabilitation Center volunteers.
+In the study, Machado and his colleague Dr. Jeronimo Alencar examined the feeding habits of several mosquito species in the Atlantic Forest, a moist broadleaf forest that stretches along the eastern coast of South America.
-While the team in Massachusetts doesn’t know specifically when the volunteers will release the birds, Patel says that the plan is for the volunteers there to briefly monitor them to make sure they are okay before letting them travel further south.
-The post A giant-footed bird showed up in a Massachusetts backyard. It didn’t belong there. appeared first on Popular Science.
-]]>The post How pilots avoid thunderstorms—and what happens when they can’t appeared first on Popular Science.
-]]>According to Machado, the project began as an attempt to figure out which local animals these mosquitoes were feeding on.
-In reality, plane crashes in thunderstorms are extremely rare—largely because pilots seldom fly into thunderstorms in the first place.
+“When we started our research, our main goal was to find the preferred blood source that some species of female mosquitoes use for reproduction,” Machado tells Popular Science
-“You’re never going to intentionally fly into a thunderstorm, because thunderstorms contain the roughest air, as well as other hazards,” says Patrick Smith, an airline captain and writer of the Ask the Pilot blog.
+The process of identifying the blood in the creatures’ stomachs was time-consuming. The first step was identifying which of the region’s roughly 40 mosquito species were biting. This involved careful scrutiny of the creatures with a stereoscope.
-“The identification itself is not complicated,” Machado says, “but there is a shortage of entomologists to perform it.”
-Avoiding thunderstorms, Smith explains, involves close collaboration between meteorologists, air traffic control, and the flight crew, both before and during the flight.
+This fact, along with the need to transport the mosquitoes back to Rio de Janeiro for analysis, meant by the time the samples were analyzed, the DNA and RNA inside of them had started to break down. Even with these difficulties, the analysis provided Machado with a pretty good idea of which mammal species the mosquitoes in question preferred for dinner. In several cases, this blood was human.
-“We receive reports and forecasts before every flight indicating where storms might occur,” he says, referring to detailed satellite mapping provided by meteorologists. “But if you’re on a 12-hour flight, the information you have at the beginning is only so valuable. What you’re really relying on are the real-time tools.”
+“This was something we didn’t expect,” Machado says. “Since we were in a forest reserve, we expected to find DNA from vertebrates in the local fauna.”
-Part of the job of Smith and other pilots is to constantly monitor the plane’s onboard radar and Weather Avoidance System (WAS), which show “where storms are, how high they are, how fast they’re moving, the direction they’re moving and so on,” he says.
+“[The radar] sends a signal out from the airplane and it bounces off the water in the clouds and comes back,” former pilot Tom Bunn explains. “The more water, the more intense the thunderstorm.”
+So why so much human blood? The researchers hypothesize that the Atlantic Forest’s changing environment has led these species to develop a taste for human blood.
-“There might be 20, 30, 40 airplanes that [air traffic] control is watching at a certain altitude range,” Bunn says. “Everybody’s on the same frequency, you can hear each other. If you have turbulence, you’re supposed to announce it.”
+“We believe it’s a matter of opportunity given the lack of a preferred food source,” Machado says. “It seems that if mosquitoes can’t find their preferred blood source, they seek out whatever is available.”
-This combination of radar and information-sharing allows pilots to track storms and rough air up to a couple of hundred miles ahead. They can then ask air traffic control for a change of altitude to avoid turbulence, or a change of route to bypass a storm. Most airlines recommend that pilots keep a minimum of 10 to 20 miles distance from thunderstorms, depending on their severity.
+As biodiversity declines and animal species go extinct, more mosquito food sources are disappearing. However, unlike many of the animals on which they feed, mosquitoes are adaptable creatures. There’s almost always a ready-made alternative, including humans.
-“You see with your radar, it’s color-coded,” Bunn says. “The green is the edge of the thunderstorm, that’s bumpy, but it’s not severe. The yellow would be pretty severe and then there’s red. You just want to stay out of that.”
+While this might be good news for the mosquitoes, it risks being terrible news for humans. As an increasing number of mosquito species develop a taste for humans, so too does the risk that species which have not been particularly problematic in the past could act as new vectors for blood-borne diseases.
-The answer seems to be first arresting, and then reversing, this process of deforestation and habitat destruction. But it’s not altogether clear that the damage is so easily reversible. Humans certainly aren’t going anywhere, so who’s to say that the mosquitoes won’t just keep feeding merrily on us regardless?
-Machado expresses cautious optimism on how we can address how deforestation affects what mosquitoes eat.
-When flying through scattered thunderstorms, pilots may sometimes choose to chart a course through the gaps between the storms, rather than deviate too far from their planned path. In these conditions, the 20-mile distance guideline can provide an important buffer against unpredictable shifts in the weather.
+“We believe this is a reversible process, but this will require restoring the biome while simultaneously continuing our study. We are still seeking more evidence that [these] mosquitoes have a preferred food source. For now, we are observing that there is a possibility that they are adapting to different sources and do not [prefer] human blood.”
-“It can change very quickly and you can be in an area where a storm moves or morphs a certain way where that amount of clearance is impossible,” Smith says. “You won’t fly into the heart of the storm, but you may be skirting the edge of it from time to time.”
+For the same reason, he says, it is usually not advised to fly over the top of storms—as the unfortunate pilot Brodie Torrance (Gerard Butler) attempts in the movie Plane.
+Nevertheless, humanity continues to play with fire as it pushes further and further into previously unspoilt ecosystems. A landmark 2001 study found that new diseases are twice as likely to be zoonotic—transmissible between animals and humans—than existing ones. The danger posed by such diseases was exemplified by COVID-19, which jumped from bats to humans to catastrophic effect.
-“Thunderstorms can extend well into what we call the flight levels, upwards of 40 or even 50,000 feet,” he says. Although flying over the top of a thunderstorm can be smooth and safe, they can billow up quickly, making it safer to go around them than above them.
-While disastrous scenarios surrounding a novel pathogen spread by mosquitoes are hypothetical, there are also very real dangers linked to deforestation. For instance, the malaria parasite in the Amazon is largely spread by the Anopheles darlingi mosquito. It was thought to have been eradicated in the 1960s, but re-emerged in the 1990s, and is now common. Another study found that cleared forest patches had created a perfect breeding environment for the insect, helping its return.
-Despite such strenuous efforts at avoidance, both Smith and Bunn agree that flying into a thunderstorm is rarely as perilous as the movies might suggest—although it could make for an uncomfortable ride.
+Ultimately, Machado stresses that it’s important to control the emergence of new disease vectors and thus mitigate further risks.
-“Probably the worst thing that can happen is you get hailstones, they make little tiny dents on the wing,” Bunn says. “If you dent the edge of the wing, it’s not going to be quite as efficient.” More severe hail can even crack the plane’s windscreen, although the vast majority of hail damage to airplanes is more a financial concern to the plane’s owner than a safety threat to passengers.
+“The re-establishment of ecosystems will certainly contribute to this and should minimize the climate changes we are experiencing,” he says. “We need to learn that our actions today, however small, will always have global repercussions in the future.”
+The post Without forests, mosquitoes turn to human blood appeared first on Popular Science.
+]]>The post Australian police smash e-bikes in crackdown on unruly teens appeared first on Popular Science.
+]]>Thunderstorms are often also accompanied by heightened turbulence, which can be uncomfortable and frightening for passengers, but rarely unsafe. The pilot’s protocol is simply to set the autopilot to the optimum Turbulence Penetration Speed—calibrated to maintain stability while minimizing aerodynamic stresses—and ride out the bumps.
+The roundup, dubbed Operation Moorhead, began last week in the suburbs of Perth in southwestern Australia. Police reportedly received complaints about menacing youths riding recklessly, evading officers, and “intimidating members of the public.”
-In some cases, the teens hurled objects at other vehicles and posted videos of their pranks on social media. One of those clips reportedly shows a 12-year-old zipping by on an e-bike capable of reaching speeds approaching 50 miles per hour. The ensuing crackdown led to the arrests of 25 youths between the ages of 11 and 18 and the seizure of 36 e-rideables. Western Australia (WA) police are now reportedly planning to ramp up e-bike seizures across the state.
-The one circumstance in which turbulence can be dangerous is when it occurs close to the ground, which is why pilots are particularly eager to avoid landing during thunderstorms.
+A video posted on Facebook by Western Australian police shows several seized e-bikes and electric scooters being grabbed by an excavator’s claw and crushed flat. The claw then releases the broken bikes and pounds them down once more for good measure. What remains of the mangled metal is then chucked into a large pile of scrap.
-“One of the big concerns is windshear,” Smith says. “Windshear is a sudden change in the speed and/or direction of the wind, which can be dangerous to planes at low altitudes.”
+“WA police will not tolerate anti-social behaviour that targets our community,” Joondalup police Acting Inspector Scott Gillis said during the press release. “It’s totally unacceptable.”
-He explains that modern aircraft are equipped with windshear avoidance systems, and airports also have alerting systems for the phenomenon. If windshear is detected above the runway, “you may enter a holding pattern somewhere and wait for the weather to improve, or you may divert to an alternate airport.”
+“Those decisions are made usually between the pilots and the dispatchers on the ground,” he says. “Ultimately, it’s the captain’s decision, but in practice it’s a collaborative thing.”
+And what about the greatest fear of many nervous flyers, a direct lightning strike like the one that takes out the aircraft’s power systems in Plane?
+E-bikes, electric scooters, and other micromobility devices have surged in popularity as a convenient, easy way to navigate cities that lack reliable public transportation. But their relatively high maximum speeds—compared with traditional bicycles—have also led to a major uptick in accidents and sparked backlash from critics who argue they should be treated and regulated more like motorcycles.
-
“It’s not a problem,” Bunn says. “The average plane gets hit, I’m told, twice a year.” The electrical systems of commercial aircraft are designed to withstand these shocks, with backup systems that take over in the rare event of failure.
+“It’s like if lightning hits your car, it just follows the skin,” he explains. “Doesn’t do anything to people inside the car. Same with the airplane. If you get hit by lightning, you just have a flash and a loud noise.”
+Local governments in the U.S. are beginning to pass new laws aimed at reining in potentially dangerous riders. Last month, Houston’s City Council voted unanimously to approve an ordinance putting in place a curfew that restricts e-scooter use between 8 p.m. and 4 a.m. South Carolina also recently enacted a law allowing police to fine e-bike riders up to $500 if they are caught pushing the devices past 12 miles per hour. Police in New York City have likewise increased penalties for e-bike–related offenses, a move some critics fear could disproportionately target delivery drivers who have embraced the devices.
-In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
-The post How pilots avoid thunderstorms—and what happens when they can’t appeared first on Popular Science.
-]]>The post 3D map of Easter Island takes you places visitors aren’t allowed appeared first on Popular Science.
-]]>Back in Australia, Willis says part of the problem, at least when it comes to teens, stems from the vehicles’ deceptive appearance. Parents unfamiliar with modern advances in e-rideable technology buy their children bikes and scooters without realizing they are capable of reaching such high speeds. They are also often unaware of laws already on the books that restrict where and how the devices can be used.
-As you might expect, visiting the remote island isn’t easy. To combat overtourism to the small island, only a limited number of flights travel to Rapa Nui each week. That means flights can book up quickly, especially during the busy season between December and March. But now, thanks to the work of an intrepid team of geographers and researchers, you can view the impressive moai statues from the comfort of home.
+“We would like to remind the community that e-rideables are a type of vehicle so all road laws that apply to vehicles apply to e-rideable as well, unless expressly excluded.”
+The post Australian police smash e-bikes in crackdown on unruly teens appeared first on Popular Science.
+]]>The post Deer markings actually glow appeared first on Popular Science.
+]]>The team, which included faculty from Binghamton University and the State University of New York, just launched the first-ever high-resolution 3D model of Rano Raraku, one of the major quarries on Rapa Nui. The model includes nearly 1,000 carefully rendered moai statues. It also lets viewers explore the Rano Raraku quarry, which is located in a steep volcanic crater that visitors to the island can’t explore due to safety concerns.
+The woodland mammals appear to be using UV as a way of communicating. Their scrapes—markings they make in the dirt or on wood and fill with secretions—glow under UV light that they can see and we can’t. The same goes for their rubbings, or the secretion-filled marks their antlers make on trees and fence posts. According to the findings published in the journal Ecology & Evolution, the photoluminescence is potentially a way for the mammals to find a mate.
-“You can see things that you couldn’t actually see on the ground. You can see tops and sides and all kinds of areas that [you] just would never be able to walk to,” said team member and Binghamton University anthropologist Carl Lipo in a statement. Lipo is also the lead author of a new paper on the model and statues published in PLOS One in November 2025.
+“People have been hypothesizing about if this glow exists in the environment, but nobody had gone out yet to try and connect it to the deer until now,” Daniel DeRose-Broeckert, a study co-author and ecologist at the University of Georgia’s Deer Lab, said in a statement. “As we got closer to breeding season, those markings increased in visibility as deer prepared for it.”
-
Over three months, the Deer Lab team searched for white-tailed deer markings in Whitehall Forest near Athens, Georgia, during the day. By night, they investigated them with UV lights. They analyzed 109 antler rubs on trees and 37 urine-marked acres across 800 acres of forest.
-In addition to providing researchers with a detailed 3D replica of Rano Raraku quarry, Lipo also hopes the model will help more people experience the island.
+
“We’re documenting something that really has needed to be documented, but in a way that’s really comprehensive and shareable.” So go get busy exploring Rano Raraku! As Lipo said, “the quarry is like the archeological Disneyland.” But one you can now visit from the comforts of home.
-The post 3D map of Easter Island takes you places visitors aren’t allowed appeared first on Popular Science.
-]]>The post Ornate medieval ring discovered in Norway’s oldest town appeared first on Popular Science.
-]]>“Their vision is vastly different from ours. Once the sun is slightly gone around dusk and dawn, the UV light dominates for deer since it’s not being washed out by the visible light spectrum from the sun,” said DeRose-Broeckert.
-“When I first saw the ring when I was digging, I couldn’t believe that it was gold, but it immediately had the shine that gold has even if it has been in the ground for hundreds of years,” Åsheim, who works at the Norwegian Institute for Cultural Heritage, tells Popular Science.
+The team believes that rubs’ glow may be made from a combination of plant and tree sap and secretions from the animal’s forehead glands. The scrapes’ glow is likely from urine.
-She unearthed it while on a dig in Tønsberg, a town in southeastern Norway dating back to about 871 CE.
+“In the process of scraping the bark off a tree with their antlers, they are depositing glandular secretions. Likewise, when they make a scrape, a different gland is also between their toes,” added study co-author and ecologist Gino D’Angelo. “Deer have lots of ways to interact with the environment, and they are leaving those signatures out there to smell and glow.”
-“I was the only archaeologist out on the dig that day, so there wasn’t anybody to confer with,” she explains “I was a bit uncertain if it was a genuine medieval ring, but the more I looked at it, the more certain I became.”
+

Earlier studies suggest that other mammals also glow under UV light, but the reasons why have been vague. Deer use the same scrapes as a way to communicate through scent, so the team on this study believes that the glow offers a visual way for deer to communicate
-While it’s difficult to understand the ring’s age from its decoration, the layer that Åsheim found the artifact in is directly beneath one that dates back to 1167-1269 CE, according to radiocarbon dating.. As such, the ring must be older than that date range. If the layer above that of the ring had had any “disruptions,” the question of the ring’s age might have been uncertain, Åsheim explains.
+“The scrapes become a communication hub where other deer will visit it after it’s created and contribute to it. It’s like a phone booth out in the city when trying to make nighttime plans at a meeting point,” D’Angelo said.
-“The ring is quite little in size, and is a ring worn by a woman of high social status,” she continues. “Rings of this type [are] not at all common, so it is natural to assume it had to be a person of some wealth that owned it.”
+During deer mating season from mid-October through December, marking is particularly important.
-The ring’s discovery is important because it sheds major light on early Tønsberg’s social structure, Åsheim adds. While researchers presume that the wealthy class stayed elsewhere, the ring indicates that they also frequented the region of the excavation. Archeologists believe that this region is where commoners such as tradesmen lived. Åsheim says it is also possible that someone from the upper class was “just passing through.”
+“We’ve known that there’s an olfactory component, but now we know the deer are also getting stimulated in two senses, both olfactory and visually,” said DeRose-Broeckert. “Both males and females utilize scrapes to advertise their presence in the environment and their breeding status and fitness level.”
+The post Deer markings actually glow appeared first on Popular Science.
+]]>The post Iron Age teeth reveal the hidden lives of ancient Italians appeared first on Popular Science.
+]]>Because the ring may have been imported, it could also provide insight into ties with Europe . Researchers are unsure if the jewelry’s stone is colored glass or a sapphire, so Åsheim and her team will continue investigating the ring’s ocean-colored centerpiece.
-The post Ornate medieval ring discovered in Norway’s oldest town appeared first on Popular Science.
-]]>The post Nature could take over an abandoned NYC surprisingly quickly appeared first on Popular Science.
-]]>In Italy, a team at Rome’s Sapienza University has conducted the first dental study of its kind for an Iron Age community 35 miles south of present-day Naples. After analyzing the microscopic makeup of teeth from ancient Italians, it appears that the people living near Pontecagnano enjoyed a diverse diet that reflected a time of increased interactions with nearby Mediterranean societies. Their findings are detailed in a study published today in the journal PLOS One.
-Now, imagine if all that noise and all those people suddenly disappeared overnight. Just how quickly would nature move into abandoned apartments? Well in a new episode of Popular Science’s Ask Us Anything podcast, we explore just that. We even talk to special guest Les Stroud, the multi-award winning film producer of over 130 documentaries, including the beloved series Survivorman.
+Archaeological records at Pontecagnano span multiple cultures and date as far back as the Copper Age (3500–2300 BCE). By the 7th century, the region was home to the Etruscans, who occupied the area until the Roman Empire’s arrival in the late 4th century. The Etruscans often interred their deceased in necropolises, which is where the Sapienza University team recovered 30 teeth from 10 individuals who died during the 7th and 6th centuries.
+“The teeth of Pontecagnano’s Iron Age inhabitants opened a unique window onto their lives: we could follow childhood growth and health with remarkable precision,” study co-author and archaeologist Roberto Germano said in a statement.
-Ask Us Anything answers your most outlandish, mind-burning questions—from the everyday things you’ve always wondered to the bizarre things you never thought to ask. So, yes, there’s a reason cats love boxes and no, hot workout classes usually aren’t better. If you have a question for us, send us a note. Nothing is too silly or simple.
+They analyzed the growth patterns displayed in dental tissues, and then compared the resultant data between canines and molars to contextualize the first six years of each person’s life. This revealed minor stress events linked to dietary shifts, often between the ages of one and four. According to researchers, the changing sources of nutrition likely made the young children susceptible to diseases, which left lingering evidence in their teeth.
-This episode is based on the Popular Science article “In a world without people, how fast would NYC fall apart? Here’s the timeline.”
+However, their diets were incredibly diversified by the time of adulthood. Dental plaque examinations showed remnants from an array of foods, including legumes and cereals as well as “abundant carbohydrates and fermented foods.” These chemical traces are supported by the existing historical understanding of the era, which featured increased trade with other societies around the Mediterranean.
-The team believes that their approach represents a proof-of-concept for using dental analysis to offer personalized insights into the individual lives of ancient peoples. While not intended as findings representative of the larger Etruscan region, the analysis illustrates a more intimate look at Iron Age existence.
-Listen and follow Ask Us Anything on your favorite podcast platform:
+“The study…makes it possible to go beyond the narrow focus on the period close to their death, and brings to the forefront the life of each of them during their early years,” explained study co-author Alessia Nava.
+The post Iron Age teeth reveal the hidden lives of ancient Italians appeared first on Popular Science.
+]]>The post 100 mystery sounds under review for signs of extraterrestrial life appeared first on Popular Science.
+]]>Spotify | Apple Podcasts | YouTube | Or wherever you get your podcasts.
+Even with today’s advanced computers, the world’s most complex data problems can’t be solved by a single machine. Instead, it’s far more efficient to break up tasks among many separate computers. For decades, however, the technology to handle even these distributed responsibilities was relegated to well-funded companies and government institutions. But with the rise of personal computers (PCs), UC Berkeley researchers like David Gedye and David Anderson realized that the untapped pool of citizen scientists could be a vital asset. And what bigger data pool was there to draw from than the vastness of interstellar space?
-Sarah Durn: Imagine the ceaseless cacophony of New York City suddenly stopped. No sirens wailed, no cars zoomed. No subways rumbled beneath sidewalks, all because the eight and a half million New Yorkers have disappeared overnight. Now imagine what would happen next. If no one’s around to sweep the sidewalks weed Central Park or turn the power grid on, nature would move in and quick.
+In 1999, the computer scientists teamed with astronomers Eric Korpela and Dan Werthimer to launch SETI@home. The project relied on individuals downloading a client program to their home PC designed to parse data passively collected by a 984-foot-wide radio telescope at the now-shuttered Arecibo Observatory in Puerto Rico. Although Arecibo’s line of sight only encompassed about a third of the entire sky, that still included most stars in the Milky Way galaxy.
-Dandelions would spring up from asphalt cracks. Raccoons would move into abandoned apartments. Sidewalk trees would outgrow their planters, but just how swiftly would the city return to a natural state? We talk to architects and urban ecologists to map out a potential timeline.
+“We [were], without doubt, the most sensitive narrow-band search of large portions of the sky, so we had the best chance of finding something,” Korpela said in a recent UC Berkeley profile.
-Welcome to Ask Us Anything from the editors of Popular Science, where we answer your questions about our weird world from what is going on when you shiver to how do snakes actually move? No question is too zany or humdrum. I’m Sarah Durn, an editor at Popular Science.
+Before launching SETI@home, project organizers estimated they’d receive around 50,000 volunteers. In only a few days, they surpassed 200,000 participants from over 100 countries. By the program’s one-year anniversary, the SETI@home client had been downloaded onto over 2 million PCs.
-Annie Colbert: And I’m Annie Colbert, editor-in-chief at Popular Science.
+
SD: We thrive on curiosity here at Popular Science. The stranger, the question, the more we need to answer it.
+AC: And this week our curiosity has led us to the somewhat bleak but fascinating question of what would happen if people suddenly abandoned New York City.
+The data itself wasn’t collected by simply aiming Arecibo at a section of space and listening for ET whisperings. Earth is constantly moving around the sun, and the same likely goes for any source of alien life. This required Korpela and colleagues to design a protocol to mathematically reconfigure frequency clips to account for any Doppler drifts.
-SD: And just how quickly would nature move in.
+“We actually had to look at a whole range of possible drift rates—tens of thousands—just to make sure that we got all possibilities. That multiplies the amount of computing power we need by 10,000,” said Anderson. “The fact that we had a million home computers available to us let us do that. No other radio SETI project has been able to do that.”
-AC: As a perpetually paranoid New Yorker, I must know.
+By the time SETI@home officially ended in 2020, the team was staring down around 12 billion signals of interest. Combing through those files ultimately required enlisting the help of a supercomputer—in this case an installation at Germany’s Max Planck Institute for Gravitational Physics. From there, researchers could winnow down their suspects to a couple million signals, then rank them by likelihood of ET origin after accounting for radio frequency interferences from sources like orbital satellites, TV broadcasts, and even kitchen microwaves.
-SD: Yeah. Honestly, I was surprised just how quickly nature would move in. First things first, the power goes out. New York City goes instantaneously dark. Within a year, you’d start to see pretty major building deterioration. Single pane windows on brownstones and family homes would crack. And once windows break, moisture seeps in, and then pretty soon plants and animals follow.
+Korpela and Werthimer eventually settled on about 100 final contenders worth additional examinations. Since July 2025, they have used China’s Five-hundred-meter Aperture Spherical Telescope (FAST) to collect new data from these sections of sky. The approach was detailed in two studies published last year in The Astronomical Journal, and showcases both the project’s highlights and places where future endeavors can improve on their work.
-After a hundred years without maintenance, the city’s most iconic landmarks, like the Empire State Building or One World Trade Center, would collapse entirely.
+“Some of our conclusions are that the project didn’t completely work the way we thought it was going to. And we have a long list of things that we would have done differently and that future sky survey projects should do differently,” explained Anderson. “[But] if we don’t find ET, what we can say is that we established a new sensitivity level. If there were a signal above a certain power, we would have found it.”
-AC: Yikes.
+SD: All in all, New York City would probably fare worse than the pyramids of ancient Egypt. Many modern skyscrapers and buildings just aren’t designed to last centuries, at least not without continual upkeep.
+However, Anderson and the others aren’t holding their breath. According to Korpela, Arecibo’s limited field-of-view and a lack of any particularly striking radio blips so far means a sudden ET revelation isn’t likely just yet.
-AC: That’s humbling.
+“There’s a little disappointment that we didn’t see anything,” he said. ���In order to probe farther distances, you need bigger telescopes and longer observing times. It’s always best if you are able to control the telescope for your project. We weren’t able to control what the telescope was doing.”
-SD: Yeah, right. If New York was abandoned, our ancestors might not even know that it was one of the largest cities in the world.
+Regardless, SETI@home speaks to the power of both crowdsourcing and citizen science. When combined with all of the PC advancements since 1999, there’s a chance that an heir to the project may finally find that extraordinary, history-altering space signal.
-AC: Broadway, Times Square, pizza rats… all just lost to history. Well, before we dive deep into all the details, we wanna know what questions are keeping you curious.
+“I think it still captures people’s imagination to look for extraterrestrial intelligence,” said Korpella. “I think that you could still get significantly more processing power than we used for SETI@home and process more data because of a wider internet bandwidth.”
+The post 100 mystery sounds under review for signs of extraterrestrial life appeared first on Popular Science.
+]]>The post 14,000-year-old woolly rhinoceros DNA extracted from wolf’s stomach appeared first on Popular Science.
+]]>If there’s something you’ve always wondered, submit your questions through popsci.com/ask. We might even feature it in a future episode.
+“Sequencing the entire genome of an Ice Age animal found in the stomach of another animal has never been done before,” Camilo Chacón-Duque, a study co-author and paleogenomicist at Stockholm University in Sweden, said in a statement. “Recovering genomes from individuals that lived right before extinction is challenging, but it can provide important clues on what caused the species to disappear, which may also be relevant for the conservation of endangered species today,” he said.
-SD: Give us your weirdest or simplest ideas.
+
AC: Yeah, we’re not picky, just curious. Up next, we’re gonna get into all the nitty gritty details of just how quickly New York City would fall apart without humans.
+SD: From which would collapse first, the Empire State Building or One World Trade Center to which animals would be the first to move in. That’s coming up next after this quick break.
+The woolly rhino lived from 5.3 million to about 8,700 years so in present-day Europe, North Africa, and Asia. The large mammals had two large horns towards the front of the skull, and a thick coat of hair. Stone Age painters frequently included the woolly rhino in their work, including on cave paintings in France’s Chauvet–Pont d’Arc dating back about 30,000 years.
-AC: Welcome back! So Sarah, this story is actually something you pitched me last year. So I live in Brooklyn and I used to live in Manhattan, and I don’t know, there’s something kind of peaceful about imagining a city without all of its noise. Like one of my favorite times in New York is when everyone leaves.
+The woolly rhinoceros DNA found inside of the ice age wolf was discovered in permafrost near the village of Tumat in Siberia. When scientists performed an autopsy on the ancient wolf, they identified a small fragment of preserved woolly rhino tissue inside of its stomach. Radiocarbon dating indicated that the tissue was about 14,400 years old, making it one of the youngest specimens of woolly rhinoceros ever discovered.
-Like there’s certain parts of summer where the city is just a little bit quieter. But just a little bit. So I imagine without any people, that would seem peaceful at first, but then also kind of sad and scary and strange and all of the unsettling things.
+
SD: Yeah, no, definitely.
+Since genetic material degrades over time, mapping the genome of animals like these that died thousands of years ago is incredibly difficult. The wolf’s own DNA also further complicates the analyses.
-AC: And, it’s probably kind of inevitable, right? Many cities get abandoned at some point. There’s plenty of real world examples of this.
+“It was really exciting, but also very challenging, to extract a complete genome from such an unusual sample,” added Sólveig Guðjónsdóttir, a study co-lead author, who carried out the work as part of her master’s thesis at Stockholm University.
-SD: Oh yeah? Do tell.
+AC: All right. Well, you know, I love a little history detour on this podcast, and a classic example of this is Pripyat in Ukraine. The city, which had a population of about 50,000 was evacuated in 1986 after the Chernobyl disaster.
+To get a sense of how genome diversity, inbreeding levels, and harmful mutations changed throughout the last ice age, the team then compared the Tumat rhinoceros’ genome with two other high-quality genomes from older specimens. Both of these specimens were older, dating back to about 18,000 and 49,000 years ago.
-Within a few years, trees and shrubs were growing through the streets and buildings, wolves and wild boars started roaming the empty city. It was eerie, but also wild, like nature was there to reclaim what humans had abandoned, even when there were high radioactive levels.
+They did not find any signs of genetic deterioration due to a lack of suitable mates as the woolly rhinos approached its extinction. This indicates that the species as a whole probably maintained a stable and relatively large population until just before it disappeared around 8,700 years ago.
-SD: Oh yeah, I’ve seen the photos. It’s very, very, very eerie.
+
AC: Extremely. And then let’s go back a little bit further into history. There’s the Native American metropolis of Cahokia, which was located near modern day St. Louis. At its peak around the year 1000, it was home to 12,000 people. And it was equal in complexity to contemporary European cities like a London.
+“Our analyses showed a surprisingly stable genetic pattern with no change in inbreeding levels through tens of thousands of years prior to the extinction of woolly rhinos,” said study co-author and paleogenomicist Edana Lord.
-SD: Whoa.
+Additionally, there was no evidence of a long-term gradual population decline within the genome. The extinction appears to have occurred relatively quickly, likely due to global warming at the end of the ice age.
-AC: But then by the end of the 1300s, as the climate cooled in the Little Ice Age, the city was abandoned.
+“Our results show that the woolly rhinos had a viable population for 15,000 years after the first humans arrived in northeastern Siberia, which suggests that climate warming rather than human hunting caused the extinction,” concluded study co-author and evolutionary genomicist Love Dalén.
+The post 14,000-year-old woolly rhinoceros DNA extracted from wolf’s stomach appeared first on Popular Science.
+]]>The post Why is okra so slimy? Blame the mucilage. appeared first on Popular Science.
+]]>SD: Yeah. So those examples, they kind of give us a trailer of what could happen in New York City.
+Some okra recipes strive to minimize slime; others celebrate and embrace the thickening it provides to dishes like Louisiana gumbo. But did you ever wonder why okra is so gooey? What’s the source, and what purpose does it serve for the okra plant?
-AC: Right? But New York is like a whole different movie, right? It’s bigger, it’s denser, it has more infrastructure. It’s gonna unfold in its own very specific, dramatic way.
+SD: So let’s start at the very beginning. Imagine the city is empty. Eight and a half million people gone overnight.
+The edible part of okra is the plant’s immature seedpods, which contain high levels of a substance called mucilage. Food science writer Harold McGee described mucilage in his book On Food and Cooking: The Science and Lore of the Kitchen as “a complex mixture of long, entangled carbohydrate molecules and proteins that helps plants and their seeds retain water.” Basically, mucilage is the watery slime around the okra seeds. As the seeds develop, their moist coating protects them from drying out.
-AC: Silent streets empty subways.
+Okra likely evolved its slime (or, more accurately, mucilage) as a water-conserving adaptation for growing in hot, dry climates. McGee notes that the okra plant “originated in either southwest Asia or eastern Africa, and came to the southern United States with the slave trade.” Today, okra is popular in many tropical and subtropical regions of the world, and is known for its high tolerance to heat and drought when compared with other crops.
-SD: Right? Peaceful. Manhattan peaceful. And for the purposes of today’s episode, we aren’t going to get into how this might happen or what could have caused everyone to evacuate.
+AC: Needless to say, it’s probably something bad.
+Okra is not the only plant with goo-producing levels of mucilage. It’s a common feature of desert plants like cacti and succulents, which have a similar need to store water. Other edible examples include some seaweeds, and leafy greens such as Malabar spinach, native to Asia, and molokhia, popular in parts of Africa and the Middle East.
-SD: Yeah, no, definitely probably something bad.
+Mucilage is actually produced in smaller quantities by almost all plants, as well as by some microorganisms. Single-celled protists like amoebas propel themselves on a trail of mucilage, similar to the slime trail of a snail. Japanese natto, made from fermented soybeans, gets its signature stretchiness from bacterial cultures.
-AC: That’s a segue. So Sarah, what’s the first thing to go?
+
SD: So, probably the power without anyone monitoring or repairing the grid. Midtown goes dark in just a few days. Without light pollution, the Milky Way would shine over Manhattan
+“The majority of plants produce mucilage from the seed coat,” according to a 2021 research review. However, the way that mucilage keeps seeds moist can vary. While okra seeds grow inside a mucilage coating, in other plants, mature seeds that have been shed produce mucilage by absorbing water from their surroundings. You can see this yourself when you soak chia seeds to make a chia pudding, or flaxseeds to make a “flax egg” for vegan baking. Each tiny seed sucks up water to form a layer of mucilage, creating a gel-like texture.
-AC: Living off a very bright road, I truly cannot imagine. It sounds incredible.
+There are also other ways plants use mucilage beyond water conservation. Carnivorous sundews use droplets of mucilage as glue traps for insects. Sierra Mixe or olotón, an heirloom variety of corn from Oaxaca, Mexico, has exposed roots that drip with mucilage. This slime shelters symbiotic nitrogen-fixing bacteria. As a result, says a 2020 UC Davis report, “Sierra Mixe corn receives much of the nitrogen it needs from the atmosphere,” and thrives in nitrogen-poor soil.
-SD: Yeah, no, exactly. And once the lights go out, temperatures inside buildings start to fluctuate wildly. No air conditioning, no heat. Architect Jana Horvat, who I interviewed for the story, told me that mold would start to form inside apartments within a week.
+AC: Oh, that’s gross. But also kind of fascinating.
+The human uses for mucilage go far beyond food. Historically, plant mucilage was used as a natural hair gel, and as an adhesive for paper stamps and labels. In medicine, mucilage can act as a demulcent, a substance that soothes irritated mucus membranes by forming a protective layer over them. Examples include slippery elm tea for sore throat and aloe ointment for sunburn. Mucilage is also the active ingredient in fiber supplements such as psyllium husk, and is found in some cosmetics.
-SD: I know. The subways would also fill with water pretty quickly. Every day pumps remove 13 million gallons of water from underground train lines. Without them, the subway tunnels flood. Rats, cockroaches, pigeons, opossums, they’re first to move in near the stairs and platforms.
+Scientists also increasingly look to mucilage for industrial purposes. A 2021 research review describes plant mucilage as “a renewable and cost-effective source of plant-based compounds” that are both biodegradable and environmentally friendly. In the case of okra specifically, its mucilage has been used to make biodegradable food packaging film and for filtering particles from wastewater.
-Plants like mosses, grasses, and hardy weeds would need a little more time to grow, but soon enough, at least where there’s light within the subway tunnels, it would pretty quickly start looking like a wetland.
+AC: Cool. Like little underground jungles.
+SD: Yeah, right. Moving forward in the timeline, all of New York City’s glass buildings would be in trouble. The glass on brownstones and older apartments, like we mentioned earlier, those would crack first, and then the reinforced glass on fancy skyscrapers would crack.
+Some cultures actively celebrate mucilage as a part of the culinary experience. In Japan, the texture of ingredients like okra and natto, known as neba-neba, is prized. In Nigeria, dishes made with okra and other viscous ingredients are called “draw soups,” because they’re so thick they draw back into the pot on their own when lifted. However, some don’t like the slimy texture, which is why there are many methods to make okra less slimy in the kitchen, rather than more so.
-AC: Mm.
+Science writer Jared Levan noted in a 2018 article for Food Republic that “mucilage’s viscosity increases when heat is applied.” Short cooking preparations of okra, such as frying or sauteeing, release less mucilage than long ones, such as stewing. Adding acidic ingredients like tomatoes to okra also helps reduce the slime. And because the mucilage is concentrated in the center of the okra pods, chopping or slicing them releases more slime than cooking them whole.
-SD: And once that happens, water gets in. Apartments turn into humid hot houses. Warm, wet, moldy, perfect for mosquitoes. Water, snakes, fungus, rushes. It’s like a wetland on the second, or you know, 22nd floor.
+Even if you’re not a fan of okra’s mucilage, there are still many ways to enjoy the vegetable without it. Or perhaps mucilage will go down a little easier when you remember just how useful it is, for both plants and people.
-AC: That sounds creepy. Eerie. Sounds a little bit like The Last Of Us.
+In Ask Us Anything, Popular Science answers your most outlandish, mind-burning questions, from the everyday things you’ve always wondered to the bizarre things you never thought to ask. Have something you’ve always wanted to know? Ask us.
-SD: Oh my god, love The Last Of Us. Also gave me nightmares for months.
+ +The post Why is okra so slimy? Blame the mucilage. appeared first on Popular Science.
+]]>The post Medieval plague victims likely found in mass grave in Germany appeared first on Popular Science.
+]]>AC: Yes, absolutely.
+Now, an archaeological team including researchers from Leipzig University believe they have finally located one of those infamous burial sites. According to their study recently published in the journal PLOS One, land near the deserted medieval village of Neuses contains clear evidence of human remains, as well as the hastily mixed soil that covered the bodies.
-SD: And after a few years, the streets would be in bad shape too. Especially without maintenance. Asphalt cracks form from freeze thaw cycles, so after a few winters, you’d have pretty major cracks in the asphalt, as well as starting to have cracks in cement. Water would then settle in those cracks. Moss would grow first, but eventually young trees, especially London planetrees, which are the most common trees in the city, actually would start to sprout from the asphalt.
+“Our results strongly suggest that we have pinpointed one of the plague mass graves described in the Erfurt chronicles,” explained study co-author and Leipzig University geographer Michael Hein.
-The same process would happen even more quickly in New York City Parks. Central Park would be unrecognizable in five years.
+The suspected burial plot is fascinating not only for what it contains, but how it was identified. Instead of accidentally discovering archaeological evidence amid a construction project (as is often the case), Hein and colleagues used interdisciplinary techniques to seek out the potential Black Death burials. To do this, the team analyzed the ground beneath them using a process called electrical resistivity mapping. Every type of geologic material possesses some degree of electrical conductivity, which can be charted by firing currents into the earth and measuring resultant voltages. This allows researchers to correlate voltage to various soil and rock types.
-AC: Like a full on forest?
+At one location, Hein’s team identified a roughly 33 by 49 by 11.5 foot site with noticeably disturbed subsurface sediment distributions. Subsequent drilled core samples produced mixed geologic materials along with the fragments of human remains. Additional radiocarbon dating indicated the remnants dated back to the 14th century. Taken altogether, it strongly suggests a medieval mass grave.
-SD: A young forest, but yeah. And then after 50 years, a totally new ecosystem emerges. As Peter Del Tredici, one of the sources I had, calls it “a novel ecosystem.”
+Apart from the bodies, the sediment composition itself supports the Black Death burial theory. The village of Neuses was likely settled in part due to its fertile soils known as chernozems. However, the grave pit is located in a drier region near a valley edge of the Gera River. It stands to reason that instead of interring Black Death victims in wetter soils closer to the town, the residents of Neuses opted to place them in drier conditions far outside the village walls.
-It won’t look like anything humans have ever seen. Crab apple trees, London planetrees, honey locusts, pines, oaks, Norway maples would all start filling the city. Poison ivy and nightshade vines would creep up buildings. Moss would cover skyscrapers.
+“This finding aligns with both modern soil science and the medieval ‘miasma theory,’ which held that diseases spread through ‘bad air’ and ‘vapours’ arising from decaying organic matter,” said study co-author Martin Bauch of the Leibniz Institute for the History and Culture of Eastern Europe.
-AC: And I’m almost scared to ask, but the animals?
+The team’s hypothesis won’t be confirmed without an actual excavation at the site, but until then, their novel approach paves the way for additional searches. This technique isn’t relegated to plagues of the distant past, however. Hein, Bauch, and their collaborators believe similar approaches can be applied to various other archaeological searches.
+The post Medieval plague victims likely found in mass grave in Germany appeared first on Popular Science.
+]]>The post Amazon is blowing out LEVOIT air purifiers so you can filter out irritants appeared first on Popular Science.
+]]>SD: Oh yeah. I mean, there’d be plenty.
+AC: Oh, okay.
+ + + + See It + +SD: Deer, rabbits, groundhogs, wild turkeys, they’d all start moving in. Predators would then follow, you know, their prey. You’d have copperhead snakes, even black bears, and bobcats. Birds would move in pretty quickly. They would start nesting in hollowed out buildings. You’d have peregrine falcons and bald eagles and red-tailed hawks and great horned owls.
+
The LEVOIT Core 300S-P Smart Air Purifier (up to 1,051 ft²) won’t dominate your room, but it will own your air quality, making it perfect for bedrooms, nurseries, and home offices that still want serious clean-air punch. It pairs 3-stage filtration with AirSight Plus real-time air quality sensing, plus Smart Wi-Fi controls through the VeSync app (schedules, timers, and remote tweaks) and voice control with Alexa or Google Assistant so you can adjust air on autopilot. It’s also impressively low-key: QuietKEAP can drop noise to 22 dB, making it the kind of purifier you forget is running—until you notice you’re breathing easier.
AC: So it’s like a zoo, but with skyscrapers.
+AC: Nice.
+The LEVOIT Core 600S-P Smart Air Purifier (up to 2,933 ft²) is the go-big-or-go-back-outside option in the Core series. Designed for truly large spaces, it combines a 3-in-1 filter with HEPA Sleep Mode, an onboard PM2.5 monitor, Smart WiFi, and Alexa compatibility so you can see and control your air quality in real time. It’s AHAM VERIFIDE, so you’re not just guessing that it’s working—and when wildfire season or city smog rolls in, this is the kind of coverage you want on your side.
-SD: And eventually even the city’s skyscrapers would fail. Annie, what do you think would last Longer? Newer skyscrapers, like Hudson Yards or older skyscrapers, like the Empire State Building.
-AC: Ooh, a quiz! Pop quiz. Um, I’m gonna go with the newer ones, right? More building regulations, fancier building materials, all that.
+SD: Yes, yes. It’s an excellent guess. But the newest high rises, like 10 Hudson Yards, 111 West 57th Street, they would actually collapse first.
+ +AC: Ah, wrong.
+The LEVOIT EverestAir-P Air Purifier (up to 2,655 ft²) is the “I want it all” flagship, built for big rooms and bigger allergy problems. A 3-channel air quality monitor gives you at-a-glance feedback, while the washable pre-filter and HEPA Sleep Mode help tackle pet hair, dust, smoke, and everyday funk. With Alexa control and an AHAM VERIFIDE rating, it’s a smart, set-and-forget solution if you want cleaner air on autopilot in open-plan spaces.
-SD: So yeah, with those newer skyscrapers, once their reinforced glass facades crack, water would seep in and eventually corrode the steel beams that keep newer skyscrapers upright.
+AC: Oh, so what about the older skyscrapers?
+ + + + See It + +SD: Yeah, older ones, like the Empire Step building or Chrysler Building, would actually last longer thanks to thick masonry and overbuilt steel frames. Basically when they were first building skyscrapers, they over-engineered them so that they were even stronger than they needed to be.
+Winter dryness can be brutal. It can make your eyes feel tired, your sinuses hurt, and your skin itchy and painful. A humidifier can help, and this popular Levoit model is on sale right now at 25 percent off its normal price. The 2.5-liter reservoir lasts up to 25 hours on a single fill. Rather than having a separate tank to carry to the sink, this is a top-fill model, so you simply remove the cover and pour in the water. This is one of the easiest and cheapest ways to upgrade your quality of life, especially in the winter.
-AC: Gotcha.
+SD: So they’re sort of reinforced. At the end of the day, you’re looking at 10 Hudson Yards might last a century without upkeep and the Empire State Building would maybe last 150 years potentially. But eventually everything’s coming down.
+AC: Gotcha. So what replaces them?
+SD: A forest.
+AC: Hmm.
+SD: After a century, you could have trees over a hundred feet tall. Soil regenerates, concrete dissolves. The Hudson and East River parks become wetlands teeming with egrets and turtles and eels, beavers, muskrats.
+AC: Wow. But yet, even with all of that rewilding, some human traces survive. Tell me it survives a little bit, right?
+SD: They will.
+AC: Okay.
+SD: Yeah. No, they will. There will be things for archeologists to discover if there’s still archeologists in this weird future we are imagining. You’d have rusted steel beams of skyscrapers that would stick around for a couple hundred years.
+ +The post Amazon is blowing out LEVOIT air purifiers so you can filter out irritants appeared first on Popular Science.
+]]>The post Is it illegal to own an axolotl? It depends. appeared first on Popular Science.
+]]>The stones and bricks from townhouses and older skyscrapers like the Empire State Building would make big rubble piles for future archeologists to decode. The New York Public library’s cracked marble lions might last a thousand years or more.
+A good example of the ongoing amphibian conundrum recently occurred at Chicago’s O’Hare Airport. According to a U.S. Fish and Wildlife Service (FWS) social media post earlier this month, inspectors flagged a shipment containing “smuggled” axolotls inside a commercial import of live fish intended for pet resale. Already listed under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), regulators also added them to the Lacey Act in 2025 an “injurious species” because of their potential to spread disease to native amphibians if released. Despite this, comments from both impassioned axolotl fans and wary observers quickly inundated the FWS.
-AC: So, you know, it’s really fascinating to visualize the ruins of New York City.
+“These are commonly bred in captivity. Why the fuss?” one user asked. Another claimed that, “Making them illegal was a mistake. They will still be bought and sold everywhere.”
-Yeah. To kind of like think about it in your mind of what would this look like. I think we all have, you know, visions of TV shows or movies, but realistically, humans probably wouldn’t disappear all at once, right?
+
SD: Yeah. Right. If we look at history, most cities get abandoned slowly over time.
+Many others noted another mixed message from the FWS, this time in the post’s accompanying photo. Unlike Mexico’s dark-colored amphibians, these pinkish-white axolotls appeared to be leucistic, meaning they lacked their standard pigmentation. Leucistic axolotls are routinely bred in captivity—you may have even seen some in a local pet store. So, what’s the deal? Can or can you not own axolotls?
-AC: Yeah.
+“Even though wild axolotls are imperiled, many of these animals are bred in captivity to be sold as pets. These animals are often cross bred with other species (such as tiger salamanders) and may be both genetically and behaviorally different than wild populations,” FWS senior public affairs specialist Christina Meister tells Popular Science.
-All of this makes you think, though, what do we need to do to survive? Can we survive? Like are there any basic techniques we should all know?
+Meister explains that while they are illegal to own in some states, that isn’t the case everywhere. At the same time, the axolotl’s recent addition to the Lacey Act’s injurious species list makes it illegal to import the amphibians into the U.S. It’s also unlawful to transport them from the continental U.S. to either the District of Columbia or any U.S. territories without a proper permit. And because Meister says the Lacey Act “broadly prohibits” the sale or transfer of basically any wildlife in violation of federal, state, tribal, or foreign law, that means that you really need to check the fine print before acquiring your axolotl.
-SD: Yeah. Well, Annie, lucky you ask because I actually spoke to the Survivorman, about just that.
+
AC: Yes, the Discovery Channel Survivorman?
+In the case of the recent incident at O’Hare Airport, the FWS clarified the exotic pets were part of a larger shipment that violated the Lacey Act, and included, “other wildlife that was not properly declared or labeled, violating both the Endangered Species Act (ESA) and the Lacey Act’s trade provisions.”
-SD: Uhhuh. Yeah. We’re just gonna take a quick break and then I’ll be back with Les Stroud!
+Axolotl demand now goes beyond pet owners, however. Meister says animal traffickers are particularly attracted to them due to their “unique appearance and inability to defend themselves make them a relatively easy target.” Meanwhile, they’re coveted by many researchers—particularly in the biomedical industries—because the critically endangered amphibians possess a remarkable ability to regenerate limbs and even certain organs.
-And we’re back with Les Stroud. Les is often credited as the creator of the survival TV genre through his groundbreaking, much beloved survival series Survivorman. Les is a multi-award winning film producer with over 130 documentaries to his name, an author of four bestselling and award-winning books, and is even a celebrated and award-winning singer songwriter.
+So although they aren’t illegal everywhere in the U.S., Meister highly recommends people consult both federal and state wildlife laws before considering purchasing an axolotl. And when you do, be sure to buy them from reputable vendors and not those trying to sneak them through airports.
+The post Is it illegal to own an axolotl? It depends. appeared first on Popular Science.
+]]>The post Father and son reclaim Guinness World Record for fastest quadcopter drone appeared first on Popular Science.
+]]>Les say, you’re in New York City, everyone disappeared. What would it take to survive in an abandoned New York City?
+I’m not gonna be like, “Go away.” You know, that stuff is silly. So the reality of how you survive something like this is number one, is to remember that you’re not going to all of a sudden overnight become cold hearted. Yes, you’re gonna be protecting your family with your life, but you’re not gonna become cold hearted to other people who need help.
+According to Luke Bell’s recent video update, he and his father have spent the past five months improving “every aspect” of their Peregrine design through a combination of simulation runs, stress tests, and equipment experimentation. This time around, they built much of their drone frame using a Bambu Lab H2D dual-extruder 3D-printer. This allowed them to print Peregrine 4’s main body, camera mount, and landing system as a single, unified component.
-So that’s, that’s a big one. And so when I look at city survival after it hits the fan, regardless of what “it” is, with maybe the exception of nuclear fallout, and you’re stuck in New York City, then you need to think about all of the resources that are available. And it is astonishing how many resources will be available.
+“That gave us smoother aerodynamics and a much higher surface finish quality than before,” Luke explained.
-And yes, it will look like a Hollywood movie set. There’ll be garbage everywhere, and there’ll be dilapidation and things will be falling into ruin and so forth. But nonetheless, there’s supplies everywhere and knowing where those supplies are, that I think a lot of people think, because I’m Survivorman, that it’s always gonna be about, you know, making a bow and arrow and going out into the Central Park and hunting deer.
+Other alterations included upgrading to four, 900 kV T-Motor 3120 brushless motors—an increase of 100 kV over their previous motor choices. The Peregrine 4’s frame is also slightly larger than earlier models, but that clearly didn’t seem to affect its overall performance.
-It’s like, that’s silly. What I’m going to do is I’m going to go and figure out where all the industrial buildings are and what supplies they have because they’re abandoned. I’m going to assume at this point it’s more about where can I find the things I need to get to the next day or even make it for the next few months. And you have, in some ways anyway, there’s, I don’t wanna say ample supply, but a lot of opportunity.
+As in past verification trials, Guinness World Record officials followed the industry-standard rubric of averaging two flight runs in opposing directions to offset any windspeed influences.
-SD: Yeah. Do you think, just to widen this out a little bit, do you think people should have a survival go bag with essentials?
+It remains to be seen how long the Bells can hold on to their title now. The title has shifted multiple times over the past few years. After topping their own initial achievement in April 2024, two other inventors increased the drone speed records twice more before the duo set the bar even higher in June 2025. After supplanting Biggs’ subsequent efforts, this now marks the Bells’ third time as Guinness World Record holders. Like the drones themselves, the speed at which bragging rights changes hands seems to be constantly accelerating.
+The post Father and son reclaim Guinness World Record for fastest quadcopter drone appeared first on Popular Science.
+]]>The post Abandoned pigs rescued on Tennessee’s Looney Islands appeared first on Popular Science.
+]]>Les Stroud: No.
+After some searching, the two pigs were found together and rescued thanks to a bit of patience and the team’s “pig whisperer.” This pig whisperer is Mary Nussbaum, the Young-Williams Animal Center’s Director of Medical Operations. Nussbaum has over 30 years of experience in veterinary medicine, including working at the University of Tennessee College of Veterinary Medicine and its Veterinary Medical Center.
-SD: Why?
+“She also is passionate about the care and protection of animals. Since the pigs were stranded on Looney Islands in January, available food resources were scarce, and the rescue team was able to lure the pigs with a whole lot of patience and several snacks,” Janet Testerman, CEO of the Young-Williams Animal Center tells Popular Science. “As soon as Mary started offering them food, they approached and were comfortable coming to her.”
-Les Stroud: I’d love to just leave that right there. Survivorman says “no,” and people freak out.
+I think that is one of the kitchiest things, you know? It’s like, “oh, I got my go bag.” I think better that you have the knowledge of where everything is in your house and the ability to pack something together quickly, put it in the trunk and go. You know it, it’s all about the situation and the variables.
+The pigs were brought back to the rescue center and received a medical evaluation. As of now, it is not clear how they made it to the islands. If an owner comes forward to reclaim the pigs, Young-Williams will inquire further. If no one claims ownership, the duo will be made available for adoption.
-SD: Yeah.
+The municipal no-kill shelter takes in over 10,000 animals every year, primarily stray cats and dogs. “But we also see our share of roosters, chickens, rabbits, hamsters, gerbils, snakes, turtles, and pigs,” says Testerman.
-Les Stroud: But this concept of “I’ve got my go bag, I’m set for the apocalypse.” It’s like, nah, no you’re not, you know, let alone having the strong skillsets of organization. Of survival methods and techniques, fire starting, water acquisition, food gathering. I can’t give you a perfect, in great shape, expensive compound bow and say, now go get us a deer.
-It’s not going to happen. Right? So those things are Hollywood. What’s gonna happen is we’re all gonna be scared and you’re going to be pulling from everything that you’ve got in your cupboards. So if you’ve got a larger supply, that is good. I don’t wanna talk that down too much, but it’s also overplayed.
+SD: Yeah. Okay. What are basic survival techniques you think everyone should know?
+The two-year-old facility accepts animals no matter the severity of sickness or injury and is considered a “no-kill” shelter. According to the Animal Human Society, in order to be considered a no-kill, a shelter or rescue must have an at least a 90 percent animal placement rate.
-Les Stroud: As I said, number one: the ability to get a fire going anywhere, anytime, in any weather, using varying supplies, possibly without a match or a lighter. Number two: in a wilderness situation I would say the next one is knowing how to, how to signal people.
+“The story of the pigs is but one of thousands of calls we have responded to in less than two years that have led to better options for the community and our animals,” says Testerman.
+The post Abandoned pigs rescued on Tennessee’s Looney Islands appeared first on Popular Science.
+]]>The post In medieval France, murderous pigs faced trial and execution appeared first on Popular Science.
+]]>SD: Hmm.
+However, reality is sometimes stranger than fiction. Because sometimes the criminal wheeled about town wasn’t human. Occasionally, the prisoner at the end of the rope was a pig, hung upside down until dead. In medieval Europe, pigs went to trial—and the gallows—surprisingly often.
-Les Stroud: How to signal for rescue. But if that’s not needed and everybody knows what’s going on, then I, I think number two for me would be a skillset about knowing how to organize for movement. I’ve seen people try to go somewhere quickly, you know, with paper bags of groceries, it’s not gonna work. You know, a great way to know how to do that is to go backpacking.
+Most of us don’t live on farms today, so it can be easy to forget how dangerous domesticated animals can be. Cows can trample people to death, horses can deliver fatal kicks, and those are just the herbivores. Pigs, on the other hand, are omnivorous. Throughout history, this made them useful as they could be fed kitchen scraps and waste. Yet a pig allowed to wander freely could easily overpower a small child, and as a result, there are hundreds of records of pigs killing and eating children across medieval Europe.
-You learn really quickly how to travel over land on foot with a heavy pack. That organizational skill is incredibly helpful. First aid, you know, having a skillset of knowing how to treat and be conscientious of that, which is going to lead into, of course, knowing how to procure water and then eventually food.
+But, so there you go. That’s where it starts. The top fire. The ability to move and know how to logistically handle that. Medical skill sets, procuring water and shelter, those are vital. Without those, you’re, you’re really stuck.
+In 1379, a group of pigs in the village of Saint-Marcel-lès-Jussey in eastern France killed a swineherd’s child. In 1386, a sow in Falaise, Normandy, savaged a young boy, who died of his injuries. In 1457, a sow killed five-year-old Jehan Martin in the village of Savigny in Burgundy. Gruesomely, the sow’s six piglets were nearby, covered in blood.
-SD: Yeah. Yeah. For sure. Well, thank you so much, Les.
+“We are used to this pink, fluffy, or quite chubby animal that would be quite slow, but pigs in the Middle Ages were much closer to the wild boar,” says Sven Gins, a historian and a researcher at the University of Groningen, as well as the author of Casting Justice Before Swine: Late Mediaeval Pig Trials as Instances of Human Exceptionalism. “So they were very fast, very strong, and they ate everything, including human meat sometimes.”
-Les Stroud: Okay, well that’s great. Well, thanks so much guys for reaching out to me for this.
+
SD: Bye. This was fun. Thank you, Les.
+AC: Oh wow. Les is such a cool guy, but I’m gonna admit now I’m kind of nervous if I would survive New York City.
+In France, these incidents often resulted in trials, with the pig treated almost as a human defendant. “A lot of the records are saying, ‘This pig went to jail. This pig was transported in a cart. We got an executioner from Paris, and we paid him,’” says Gins. “These are very serious legal proceedings, in many cases. Almost mundane, actually. To us, it’s sensational that they would put a pig on trial, but to people at the time, it seemed [like] an ordinary thing to do.”
-SD: Yeah, I don’t know how I would get out. It’s a good thing I don’t live there. Sorry, Annie.
+Gins notes that, as wild as pig trials sound, their purpose may have been practical. “One thing that is often not mentioned is that justice in general at the time was very much focused on reconciliation between the two parties,” he says. Sometimes, all it took was a payment from one side to the other to resolve an issue. “But then if a child is killed, that’s quite major, and money isn’t always going to cut it. So in that case, it helps if the law steps in and says, ‘We’ll take over from here.’”
-AC: It’s not good.
+Taking a pig to trial gave authorities a chance to dig deeper. “They sometimes wanted to know, was there any ill-intent present in this? If you know that a pig is dangerous, why would you let it wander about in the presence of young children? Sometimes even the parents themselves were suspect. They wanted to know if it was an unwanted child that they had left near the pigs, or if it was simply the owner who had been neglectful,” says Gins. “I would say that the court really stepped in to gain clarity and provide a coherent narrative for everyone.”
-SD: Oh, I know. He was so cool. It was so wild to talk to him after watching him on SurvivorMan growing up.
+AC: Yes, absolutely also loved that show.
+Sometimes, higher authorities would get involved in local pig trials. In the 1379 case, a group of pigs, some belonging to the local abbey, were charged with killing a swineherd’s son.
-SD: Oh, it’s so good. And that’s it for this episode. Please follow or subscribe to Ask Us Anything by Popular Science wherever you enjoy your podcasts. And if you like our show, leave a reading and a review.
+The abbey, Gins says, wrote to the Duke, Philip the Bold. Gins sums up the letter: “Can you please let our pigs go? Because we are sure that they were not involved in the killing. They are well-behaved pigs.” The Duke listened, and wrote a letter of pardon for the abbey’s pigs.
-AC: We care what you think. Please tell us. Our theme music is from Kenneth Michael Reagan, and our producer is Alan Haburchak.
+Idaho once dropped 76 beavers from airplanes—on purpose
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+When the U.S. almost nuked Alaska—on purpose
+Andrew Jackson’s White House once hosted a cheese feeding frenzy
+The space billboard that nearly happened
+BOOM! That time Oregon blew up a whale with dynamite.
+The radioactive ‘miracle water’ that killed its believers
+During WWII, the U.S. government censored the weather
+ + +SD: This week’s episode was also produced by me, Sarah Durn, and is based on an article I wrote for Popular Science.
+AC: Please check out Sarah’s full story in the show notes.
+In recent centuries, writers and historians have looked back on the trials of pigs and other animals as senseless revenge by crude peasants. However, animal trials could also serve a cold political purpose for local authorities, as the right to execute criminals and even build a gallows was considered a privilege.
-SD: And thanks to our whole podcast team and special thanks to you all.
+One homicidal pig in the 15th century, Gins notes, ended up in jail for five years before its execution. “That doesn’t scream petty rage to me. There were formal letters sent to the Duke asking, ‘Can we please build a gallows to execute this animal?’” It was quite a victory for the local lord, he adds, that Duke John the Fearless finally acquiesced. Not only did the lord get to show off his power by building a gallows of his own, but he was finally able to get the pig out of his jail and stop paying for its feed.
-AC: And one more time. If you want to have your own question explained on a future episode, go to popsci.com/ask. Until next time, keep the questions coming. And good luck surviving.
+Dr. Damian Kempf, a senior lecturer at the University of Liverpool, is an expert on medieval European monsters. He says animal trials were also “about restoring order when there has been chaos.” Despite popular belief, he notes, humans often weren’t put to death for crimes—such punishments were reserved for the most wicked deeds, such as infanticides.
-SD: Yeah, hopefully this helps.
+“For medieval people, the world was created by God in a very logical way, with animals created first, in order to serve and help human beings who were created in the image of God,” Kempf explains. A trial and public execution, even of a pig, was considered a surefire way “to restore what was broken.” A pig eating a child was an unbearable inversion of the natural order, one that courts in medieval France would not let go unpunished.
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