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Why does the copper IUD cause heavier bleeding during periods? | I 've been looking everywhere, and I can't find an answer. The closest I found is something in regards to the ions in copper disrupting the signals sent between the ovaries, eggs, uterus, etc. Maybe a case of "Are we having a baby? Aren't we? IDFK SHIT JUST FLUSH THE SYSTEM FLUSH IT ALL" |
Why do advertisements on YouTube play instantly and never 'buffer', but when the main video plays it takes longer to load? | The advertisement is paid for so they load the whole thing at once. The video though tends to be much longer and people do not watch the whole thing every time so it saves bandwidth to have it buffer only slightly ahead of where you are watching it so if you close the video it didn't waste the bandwidth loading video y... |
Why people can snap out of happiness quite rapidly yet people struggle / take longer to snap out of sadness | People will snap out of both at about the same rate. It's referred to as the [hedonic treadmill]. Essentially, the human psyche is pretty resilient; when we face new things, we react pretty quickly. But over time we become used to whatever stimulus is present, be it winning the lottery or becoming paralyzed, and we ret... |
Why aren’t we frantically planting seagrass everywhere since it stores more CO2 than an equivalent area of rainforest? Seems easier than haggling with locals to replant rainforest. | Biodiversity. There's alot of that in a rainforest, the cure for cancer could be in some tree beetle we've never discovered, but then went extinct when we cut down all the trees it lived in. Also a rainforest is much more resilient. One disease or pest can wipe out a whole system of seagrass, since they're all the same... |
Why can you only tune FM radios to odd numbers? | In America, FM radio stations are given 200 kilohertz of spectrum on which to broadcast. So, the frequencies were always going to end in either an odd or even number. It was completely arbitrary that they decided to end them on odd numbers instead of even. |
When people hunt animals using poisoned arrows/darts why doesn't the meat make them sick despite it being imbued with potentially lethal poison? | A lot of animal poisons are destroyed by heat so you just have to make sure the food is properly cooked for it to be safe.1. A lot of toxins are destroyed by heat, so cooking the food removes them. 2. A lot of toxins aren't poisonous when ingested, as they are destroyed by stomach acid. 3. Removing and discarding the m... |
Would it be possible to make a sandbox style game using Google Streetview as a template for a real city? | They could certainly be used as a framework for doing so. However, you'd run into two significant obstacles: 1. Real life is boring. There are good reasons cities end up arranged as they are. Those good reasons do not include 'compelling gameplay'. After the 100th time you have to walk past featureless tract housing th... |
Why does no one have bizarre colors for their natural hair color? | Because humans can only make "paint" that is a shade of brown or red. Lots of brown is black, while very little brown is blonde. It is actually really hard for animals to make other colors of "paint" like blue or green. . I'm sure you're wondering about eyes by now. Blue and green eyes are actually colored by how the e... |
What's the difference between the media coverage of the Boston incident and Reddit's coverage? Why is the media considered 'exploitation' but Reddit isn't? | Because Karma doesn't equate to money, but ratings often do. In a sense, the news profits from tragedies, which I think is what bothers some people. I think most people's objection to news media is how they intentionally make things more sensationalist to drive up ratings. For example, when that cruise drift was adrift... |
How does the soil layers tell us about different eras. Does the land keep getting higher? | Not everywhere. Dust blows in the wind. Plant growth builds up debris. Rockslides come down forming mountains. Rivers move silt downstream. Lots of erosive forces move earth from one place to another. These can bury locations under the ground. An exposed hilltop, on the other hand, may lose surface to erosionBecause so... |
Why do Japanese Prime Ministers typically only serve ~1 year terms? | The short terms aren't mandated or anything, they happen for a variety of reasons. Many were scandals, others were assassination attempts, and still more were at times when Japan was not a very stable country. They also get taken out of office rather quickly sometimes by political conflict. The wiki page gives a list o... |
Why does the middle finger mean what it means? | There are many stories associated with it. The one story I heard comes back during the ancient or medieval era. In battle, when soldiers captured an archer, they would cut off their middle fingers. Without their middle fingers, they couldn't properly fire their bows. So, as a taunt, archers would wave their middle fing... |
Why does gargling saltwater help with sore throats? | Yarr! Yer not alone in askin', and kind strangers have explained: 1. [ELI5: Why is gargling salt water known to help with sore throats, but eating chips doesn't? ]1. [ELI5: How exactly does gargling salt water help a sore throat? ]1. [ELI5:Why does gargling with salt water help a sore throat? ]1. [ELI5: Why does gargli... |
how does Alt+f4 work when closing down a program and is it any different from closing it from the task manager? | Alt+f4 is the same as clicking the little x button at the corner of the window. What it does is send a message to the program saying "please close". Depending on the program's code, it can comply and shut down, it can show a message box to the user asking if they're sure, and it could even ignore the message altogether... |
When did Three Parallel Lines become to mean "Menu" On Websites/Apps | [Xerox Star] used the 'hamburger' icon since 1980s, then [Facebook, Apple & Path popularized it]", 'Those lines represent lines of text in a "drop down text box" or a "drop down menu", which used to be the only way to get a menu of selectable options. Now it might take you to a whole different page, but it's a leftover... |
if there was a zombie apocalypse, how long would a power station (gas or oil maybe) keep running and supplying power without anyone maintaining it? | Let's ignore the possibility of gradual zombification where large areas are still unbitten and let's ignore the possibility that the zombies might want run the power plant for their own needs. About half of the power in North America is produced by coal power plants. These plants are likely to shut down over 2-4 hours ... |
How do certain animals reach sexual maturity based off of their weight rather than their age? | Reproduction is a high risk/high reward function for many organisms. It requires extra energy to gestate offspring, which can be hard to come by. If a potential mother does not have the energy reserves necessary to fully gestate the next generation, she could die in the endeavor. Without knowing what animals you are ta... |
How does a whale become "beached". If it dies, why wouldn't it sink to the bottom of the ocean? | Most of the whales that die at sea do sink to the bottom of the ocean ). It's possible that the corpses of whales that happened to die near the shore can wash up on the beach after death , but most of the "beached" whales that you hear about are actually alive when they beach themselves. This happens for various reason... |
What is happening when I lose my voice? | Your vocal folds are irritated and swollen. They usually flap together really smoothly but now they're banging each other violently. Don't whisper, because that tenses them and irritates them even more. Just don't talk. |
Why can't phone spammers be caught/prosecuted? | It's not illegal to call someone phone. And the Do-not-Call list is PER company its not like ONE list that every company follows and go.. YEP.. Verizon already called him..so we cant..You have to tell EVERY COMPANY not to call you again. |
Why do blue and green white-board markers erase cleanly while black and red ones leave residue? | Different color dyes have different pigments and ingredients, and it is the dye that's going to stain. The stain is dependent on the quality of the white board material and how long the marker is up on the surface. Just as an anecdote, I can never get blue to erase cleanly. Black is generally not a problem. |
Why do I feel nauseated when I'm super hungry? | Does anyone else get the nausea in 5min bursts? Like I'll be totally fine, then debilitatingly nauseous, then a few min later I'm totally fine again. |
If we can't filter microbeads, why aren't they in our drinking water? | They're not filtered by the equipment used for treating sewage before releasing it back into lakes/rivers, but they are filtered by the equipment used for cleaning drinking water. |
why do patterns of three feel so 'right' to us? does this differ in different parts of the world? | My theory is this: Imagine somebody on stage, speaking. He starts a list. The first item is just a thing: nothing special. The second item is like the first, but this now sets up a pattern: we've just had two very similar items, so we expect the third item to conform to it. If the third item does conform to the pattern... |
How do celebrities get away with buying drugs? | I think that one of the main reasons why so many celebrities get into drugs, is how easy it is for them to get it. They are young & rich, they hang out at parties & clubs etc. They are a perfect target for drug dealers. We don't always remember it, but celebrities are people too. They are susceptible to peer pressure a... |
do the people on "to catch a predator" have a choice whether its shown on tv or not? | Worked in TV here. Not that I 've ever worked on a TV show that was "news oriented" or whatever TCAP is but I used to be in charge of securing "appearance releases" from people that we caught on camera. If we didn't get a release they couldn't be filmed. That's my experience. I'm sure producers don't always honor that.... |
Why does a phobia for blood makes people faint sometimes when they see it? | I'm pretty sure it's not just a phobia of blood that does this, but it really happens a lot. On my phone right now, so I can't post references, but I think this happens when said sufferer of phobia gets overwhelmed with what they're seeing. They get some sort of panic attack and end up fainting", 'Medical term you're l... |
Why the hell does it hurt so bad to get hurt in the shins? | Two possible reasons. 1) When you hit your shin it's moving with a good bit of force behind it because you're moving your entire body. 2) There is no flesh to cushion the blow when you hit your shin. It goes right to the bone. |
How can we predict the weather? | The weather is simply the effect of many natural cycles that occur on Earth. It all starts with the Sun. Where the sun shines, the angle it shines at, what kind of environment exists there , and the duration it heats the area all determine how much heat has fallen on it. This is the main factor to what the local temper... |
Is there a genetic explanation for why some people can have a ton of energy throughout the day while after a 8 to 5 shift I just want to crawl in bed and sleep? | Everything plays a factor, exercise, proper diet, enjoying your job, getting up and moving throughout the day, proper nights sleep, everything possible can affect your body. Everyone is different, if I don't work out in the morning I feel tired throughout the day, but my friends are the opposite and can only workout at... |
Why does food coloring have pointed caps and not regular lids? | They usually have little pointy dropper heads. Also the entire container sort of looks like a drop off liquid so it is stylistic. |
How does evolution and the big bang disprove existence of any god? | If you are referring to the Nye/ Kent debate, they were discussing only between evolution and creationism, not the existence of a god. Besides that its really a matter of personal belief on the subject. If you think there is something behind it then sure, there is. But if you think there isn't anything behind it, fine,... |
- How does my body decide on what food it likes and what it doesn't like? | Your preferences in food is a combination of: * Innate taste: we're genetically wired to prefer sweet, salty, and savory taste, and instinctively reject bitter and sour. * Yo momma: flavors pass into amniotic fluid, and what your mom tastes while she's pregnant with you influences your preferences later on. * Learning/... |
In nutritional science, why are things that are considered healthy one day suddenly seen as unhealthy the next day, and vice versa? | They are not though. If by nutritional science you mean health gurus and vloggers, then it's because they don't know shit and all they do is perpetuate each other's bullshit. That's why you see the fads you described. If you mean the actual scientists and official healthcare regulations/guidelines those tend to be much... |
Why can the smell of marijuana smoke dissipate from a room within 3 days while cigarette smoke seems to stink up the room forever? | Someone special, please correct me. The molecules responsible for the smell of cannabis smoke are non-polar and are soluble in oils, while the active smell components of tobacco smoke are polar and soluble in water. Water is prevalent around your house. Your carpet, drapes, furniture, food, etc. are all moist to some d... |
The Oscillating Universe Theory. | It essentially just says the universe is like a giant spring. That it has been around for forever and just continues to oscillate. So it does a Big Bang, and then it expands for a while, the expansion slows and slows until it comes to a stop, and then it starts getting pulled back under the force of gravity, until ever... |
Why does UK and Portugal have the same time? | > If timezones are determined by your position on the globe Time zones are purely man-made things, and don't always line up the way you might expect. Your position on the globe is just a *guideline* for determining time zones. And if you look at an actual [timezone map], you'll see that France and Spain are the ones wh... |
Why do we misspell words when we write/type but not when we speak? | Well, the idea of misspelling words when you speak is kind of nonsensical on its face, isn't it. But that doesn't rule out other kinds of linguistic errors. > Or maybe it is happening when I speak and I've just never noticed before? Basically, I think you're misunderestimating the number of mistakes people make in thei... |
Why are there GSM and CDMA phone lines? Is it more beneficial to have one then the other? Why isn't there just one kind of phone line? | GSM and CDMA are mobile phone standards. GSM stands for Global System for Mobile Communications . GSM uses Time Division Multiple Access as a way of allowing multiple devices to share frequencies. CDMA is Code Division Multiple Access. The easiest way to describe the difference is imagine you are in a room with lots of... |
Why do people tend get irritable when they're tired? | Lack of sleep can cause increased stress hormones, and depending on how that person handles stress, they may be more likely to have less patienceWhen we are tired it is harder for our brain to accurately recognize emotions. Plus the fear center of our brain exaggerates our fear and anger when tiredsimply, being nice ta... |
what it means to be knighted or have the title of 'sir' or 'dame' in modern society? | You 've probably heard of things like the Medal of Honor or the Presidential Medal of Freedom. These are medals awarded by the government to recognize people who have made some sort of major contribution to their field or society. Other countries like the United Kingdom and Canada have medals and decorations but also o... |
Now that we have automatic cars, why do companies still make manual? | There is still a market for people wanting manual cars. The market is much smaller than automatics, but there still is a market for it. In many places outside of the US/North American market, like Europe, its switched, and manual cars are the norm.Because there's still a demand for them. Better mileage, more control ov... |
Why is Greece in such an economic hardship currently? | Corruption has played a very important role. Between 2002 and 2008, banks were lending money very easily as credit was very cheap. Greece went on a huge construction spree, even building for the 2004 Summer Olympics. In 2008 the easy credit stopped and so did the Greek economy. Much of the corruption of the easy money ... |
What are the profit margins like for blockbuster movies? | [Hollywood accounting] can never be explained like you're five. > [We 've written] about the wonders of Hollywood accounting before. It's a series of tricks pulled by Hollywood studios to make most of their movies look unprofitable, even when they're making a ton of money. The details can be complex, but a simplified v... |
why can skateboarders land massive drops without knee damage/broken legs? | The skateboard is made of wood, a flexible material. While the board may seem stiff if you try to bend it with your arms, it actually flexes a lot during a drop with a person on it. This flexing and unflexing during these landings has a dampening effect. Another thing to consider when landing big drops is the angle of ... |
I thought vegetables were healthy. Why are they so low in calories and vitamins? | You need at least some Vitamin A and Vitamin C, and you won't get it without some vegetables. That aside, it is precisely because they have almost no calories that they're healthy. The biggest food risk for 1st worlders is overeating calories. |
How does your brains chemistry when listening and dancing to music compare to playing music on an instrument? | The most dramatic difference is that those two things are processed in totally different areas of the brain. Listening to anything, including music, lights up the auditory cortex of the brain, located in the temporal lobe. Music that evokes an emotional response from you will also activate the limbic and cingulate regi... |
What causes Paris syndrome and why does it only occur in Japanese people? | It's not *only* in Japanese people, but they are more susceptible because their media have created such an overhyped, unrealistic expectation -- and because it's a long and exhausing trip to an extremely foreign/exotic place. _URL_0_ Even so, it's very rare, affecting 1 in 300,000 Japanese visitors to Paris.I know that... |
Why should/does the government (U.S.) be able to tax things twice? | Most governments depend on taxation to exist. But creating tax policy is hard. There are a few reasons for this. First---especially in a vast country like the United States which also has multiple mostly independent levels of government---taxation can't be directly monitored and is hard to enforce. More so than most ot... |
Why do some merchants put a minimum on credit card transactions? | Credit card companies charge a transaction fee as well as a discount rate . The larger the charge the less that transaction fee matters, but for very cheap charges it has a significant effect on the cost of the transaction. This is especially true for any low margin business, which is why they may have a minimum fee. T... |
How do Quick-Release latches work? | A quick release latch makes use of the fact that perpendicular forces don't sum. Imagine you're standing on a stick. Your mass, plus the stick's, is supported on the round base. If I want to knock you over, I don't have to move all of your mass, I just need to knock you out of alignment with the base, using a small per... |
How do "Celebrity Net Worth" sites get reliable info? | Well, much of what they own is public record. How many shares of stock you own, the value of your house, the value of your boat and cars, any art you own, your salary etc. So yes, they are pretty accurate. The numbers are close enough that the difference is a rounding error. |
When someone dies of “natural causes” what does that mean and how does that happen? | "Natural causes" is a catch all term for when somebody died from the natural progression of some sort of illness or medical event. Things like hypertension leading to stroke, or cardiovascular disease causing heart attack, dying from end stage renal disease, or finally succumbing to cancer. This is in contrast to a mor... |
How does a democratic society pass laws to limit the powers of those in power? | There is no truly democratic society in the modern world, and to the best of my knowledge one has never existed. In a true democracy, all of the people would have all of the power. Every single thing would be voted on by every single person, and the option with the majority of votes would come to pass every time. This ... |
Why do you get the feeling you need to puke when you stick your finger deep in your mouth, even though your finger isn't touching anything? | This is the gag reflex, a.k.a. the "pharyngeal reflex": it's actually the throat closing to prevent something too large from going down and causing a blockage, but sometimes it may also make you want to vomit. You almost certainly are touching something, though. It might be the back of the tongue or the roof of the mou... |
How airplane jet engines work | the absolute simplest way to describe it is by saying they suck air in the front, add fuel and burn it to raise the temperature of the air, and therefore the pressure, and squirt it out the back to make thrust. |
- How can ebay legally charge the seller a percentage of their postage fee!?? | It's backlash against the sellers who list an $20 item for $1 with $25 in "shipping fees" to avoid paying eBay a cut. It's legal because eBay owns Paypal, and since most payments are made through paypal they're not required to separate shipping from sales, they can just take a cut of all of it.What everybody else has s... |
Does staying up late causes acne? Why or why not? | No staying up late does not cause acne. Acne is caused by a combination of many factors including but not limited to, facial bacteria, clogged pores, genetic predisposition, facial cleanliness, and facial oiliness. Staying up late is not one of those factors.I would have to say no because acne has to do with your skin ... |
What makes paid item don't beep when going out of the shop? | Many items in stores have RFID tags on them. These can look like square, white stickers, little white bars, or clothing tags. These tags don't require batteries, and don really do anything until they pick up a signal from the gates at the entrance to the store. This signal provides power to the tag, which then indicate... |
Why do things feel wet through latex, even though your skin stays dry? | When you feel "wet" what you are actually feeling is a very localized change in temperature. This is transmitted through gloves/latex. Touch a cold water pipe with water running through it and you'll think the pipe is leakingYour brain is wired to interpret the combination of a change in temperature and pressure on you... |
Why are scientists still debate on time travel, if it was possible wouldn't we already have had time travelers? | There's a couple reasons it could be "possible" but we haven't experienced it. Maybe traveling to the past cancels itself out. You travel to the past to change something, that changes to future enough that you never come to the past in the first place. Maybe when it happens it creates a parallel universe we can't perce... |
Why are there so many forms of writing "god damn it"? | In my experience there is no difference in meaning. Any form of "dammit" is used to avoid actually writing the word "damn"I can only think of morphing "damn it" to "dammit". |
Why do cities destroy old football stadiums and not keep them whenever there’s a new football stadium? | Older stadiums are expensive to maintain and if the major sports team isn’t going to be playing there anymore they often can’t find enough business to support the older stadium when all he demand will be for the newer one.Money. Since maintaining and staffing a stadium is expensive, it has to have a lot of money coming... |
Why do ellipsis come in threes? | The various groups of . are all related. One . is a period, thus meaning stop. Two .. indicates a finite range. Eg. 1..5 Three indicates an undefined range.There's a distinction between the punctuation and its typographic representation . It's purely a matter of convention to represent ellipsis as three baseline dots. ... |
Are testosterone levels related to muscle growth and if yes how? | Not a biochemist, so take with liberal application of salt IIRC muscle growth is dictated more by things like HGH than testosterone. IIRC post-menopausal women also have similar testosterone levels to men.bear in mind that muscle require protein to grow. if you have a very high metabolism or do a lot of aerobic exercis... |
Why does Google use so much money on the "I'm feeling lucky" button? | I think you mean that they lose money on the button. Using the button avoids ads which is a key source of income.First, an estimative: Google loses approximately $110 million a year because of the button, since about 1% of the searches go through that button and they get no ad revenue when that happens. However, when y... |
How do emotions get linked to colors? | Speaking from a knowledge of poetry, I would say much of it has to do with similarities between an emotion and certain physical phenomena. So you might say that the wrath of Achilles was red. What else is red? The flames of a burning a burning building, the blood on a battlefield, the flushed cheeks of an angry person,... |
Why does cold water taste so much better? | Water has a lot of things in it which aren't terribly nice - chlorine, chiefly, but lots of other stuff too. When it's cold, you can barely taste them. It's rather like why cheap beer is tolerable cold, but only decent beer is drinkable when served at cellar temperature without chilling. |
Why do we often have to buy items from retail stores, instead of the manufacturer's directly? (at cost, so it would be cheaper) | Because of the convenience of having a great variety of products all condensed into one location. And nowadays, it would be a logistical nightmare for the manufacturer to deliver the items, or for the customer to pick up different items from different manufacturers.At each step of bringing a product to market adds valu... |
Why do we get dizzy after spinning in circles? | Balance is controlled by semicircular canals in your inner ear that contain liquid that operates kind of like a carpenter's level. When you spin, it disrupts the fluid levels and causes temporary loss of equilibrium. |
Why do adjacent quad copter blades spin the the opposite direction? | It balances out the torque of the blades Pretend you have one blade. When the blade spins it's going to try and spin the copter in the opposite direction. Helicopters generally avoid this by having a tail rotor that counteracts that effect. If you have two blades spinning in opposite directions then the torques from th... |
Why are black oil sunflower seeds not safe for human consumption? | Where did you hear this? Black oil sunflower seeds are used mostly for bird seed or making sunflower oil which is then fed to people or used for cookingHuman food needs to meet certain quality standards before you can sell it, bird seed doesn't. If the seed wasn't handled and packed under sanitary conditions, you have ... |
why is it beneficial for companies to sell a movie with both a blu-ray and DVD copy? | Because it costs trivially more to include both in the box. You don't have to make two separate versions of the packaging and maintain two different inventory items. They will save more money on that than they will lose from the bundling.The actual physical media is probably the cheapest thing in the box - adding a DVD... |
What is happening during and after weightlifting? | When greater than normal resistance is placed on a muscle, small microscopic tears occur in the tissue -- perfectly normal. The tears in the muscle tissue from exercise disrupt the muscle cell organelles. This disruption activates satellite cells from outside the muscle fibers, which rush to the area of damage. These c... |
why the commercials are so much gosh darn fudging louder than the show I am watching | I am not positive, but I believe the FCC requires the average volume of the commercial to be no louder than the loudest part of the showIts a technique to try and catch your attention. We naturally pay more attention to stronger stimuli. Its also obnoxious and annoying -.- |
How does American surname laws work with regards for other cultures? | America does not really have Surname Laws. Your child is whatever name you put on the birth certificateGenerally speaking there are few restrictions on what you can name your child. Your child need not have the same surname as either parentThere are a few laws state by state. For the most part if they exist they prohib... |
Why has there not been a class action against an ISP for average internet speeds below the advertised and payed for amount? | There's a fundamental flaw in your case: *you pay for service* ***up too*** *that amount*. If its less its ok, no breech of contract. Believe, if there was a winning case the lawyers would be out cutting themselves a couple quick million out of Comcast. |
Torque vectoring, how its regulated, and its uses. | _URL_1_ _URL_0_ These are the two best sources I can give. It's basically an advanced system for traction control. It's used to limit wheel slip and keep you moving along in adverse traction conditions. It also helps with cornering by putting more torque to the inside tire/s. The video gives you a good description in c... |
What is the difference between a leftist and a liberal? | I think it changes somewhat based on where you are. Leftist generally refers to someone who's somewhere on the left of the political spectrum and covers everything from the centre left to communism. It may or may not be used as in insult. A liberal, where I'm from, is someone on the centre left and, generally, supports... |
How the heck does Google search the ENTIRE INTERNET in less than .5 seconds? | They don't search the entire Internet when you Google something. Google has search engine bots that crawl the Internet and index it, so they only have to search that index, which is much faster. They also have some crazy complex optimization going on under the hood, which effectively allows the system to guess at what ... |
How does a Sperm Bank work? | No it is not random. Even in today's day and age, parents very much are concerned about their children's appearance, this includes race. they do shop for the sperm they want and yes some sperm is in very high demand over others. [I believe the most popular is a 6\'1" blonde hair blue eyed donor with a college education... |
The 3 Branches of US Government | The way it was supposed to be: * Legislative - make laws. keep executive power in check. * Executive - Defend country, execute laws made by congress* Judicial - Ensure laws do not conflict with constitution. the way it is: * Legislative - take laws made by corporate lobby and pass them through the legislative process. ... |
Why does Black Friday still happen every year if its shrouded in violence and chaos? | News programs like to overhype this kind of thing. For the vast majority of places, it's not really shrouded in violence and chaos - it's just lots of people and long lines. There's sometimes violence and chaos at football games, too, but they still happen every year. |
Why would a "Retina HD" display be better than a "Retina" display? | It would be better because it has HD in the name. But a non cynical answer would be that you would exceed that point where the human eye can't discern a difference, making all distances appear better, not just that certain distance you mention. |
why is the heart associated with emotions like love, when really those feeling happen in the brain? | So when your brain feels a certain way, your body takes some effect, too. It just happens that our chest is the most noticeable. When deeply in love, it thumps harder, faster. When heartbroken, it feels hollow. When in severe lack of affection, it feels dull. But the precedents of this expression dates from ~1580. Or s... |
How almond milk is made | Grind the almonds to a paste, add a little water, and soak for a while. Then strain out the solid bits with a cheesecloth. Behold, Almond Milk. |
How are digital scales able to determine how much fat, muscles and water you have in your body - just from standing on them and giving them info about your height? | Some scales have metal pads that you stand on. It will run electricity through your body and by measuring the resistance, it can calculate the thing you have mention. However, this is at best an approximation.The scales use something called [bio-electrical impedance] to measure how much fat you have in your body. They ... |
Why is eating meat devastating for the environment? | It's not so much eating meat that's a problem. It's eating huge quantities that are raised the way we raise them. We feed cattle tremendous quantities of grain, when their natural diet is mostly grasses. That means huge amounts of energy go into growing and harvesting and transporting that grain. We confine them to fee... |
How can carshows like roadkill build vehicles with literally no exhausts while at the same time brands like Volkswagen are being sued over air pollution because of their cars? | Volkswagen isn't being sued over the pollution that the cars are putting out, they're being sued because they altered their emissions standards testing to report that the vehicles they produce are more efficient and create fewer carbon emissions. It's a case of false advertising and a "defective" product. Vintage cars,... |
Why is chocolate poisonous to dogs, but not humans? | Chocolate contains theobromine. It is toxic to almost all animals on earth , dogs are just more susceptible. |
Why are women's skins much softer than men's? | Your fascia and connective tissue is made up of collagen and elastin . Everyones composition is different, but typically men have more collagen and woman have more elastin. Collagen is a tuff fibrous tissue and elastin is soft and elastic. Of course some men have more elastin, and versa vice. But generally that’s how i... |
Why are prepackaged cold cuts folded in a way that makes it difficult to remove slices? | I think they are folded to make the product volume appear larger by introducing air pockets. The breaking apart problem OP describes becomes a side effect. |
What would happen to the First Lady if the President ever decided to get a divorce while in office? | She would get the boot, kicked out of the house and be stripped of the honorary title. First Lady is not a government position, it is an unofficial title, she has no actual duties she has to do, though since Eleanor Roosevelt, it has become customary for the First Lady to work towards some goal, ie, Michelle Obama tryi... |
Why can't leaded engines use unleaded petrol? | Neither of those is correct. The leaded gasoline vapor can be compressed more than unleaded without spontaneously exploding due to the temperature increase. The compression ratio is determined by engine geometry, so an engine designed for leaded gas will compress unleaded gas to the point where it spontaneously ignites... |
How theorems such as differentiation/Integration were discovered. | **TL;DR**: they did it the hard way first, then after doing it the hard way a lot they discovered shortcuts.The biggest thing to note is that dx^n = nx^n-1 is not the formula for a derivative, its the shortcut. -------------------------------------------------------------------------------------------- The derivative i... |
Why is my right arm stronger than my left, even though I work both out equally? | A lot of strength gains you make while lifting weights is due to central nervous system adaptions. Your brain learns how to use your muscles more efficiently. It's pretty common that these adaptions are made more quickly in the dominant arm. |
Why do we need to put batteries in opposite directions in TV remotes and such? | AA and AAA Batteries are 1.5V each, and the circuit in the remote needs 3V. So the batteries need to be in series, end to end, to provide the 3V. Having them in opposite directions makes that simpler: at the far end, the + pole of one is simply connected to the - of the otherWhat /u/stereoroid said but in addition it i... |
Is tone of voice universally understood? Or are different tones conveyed differently in different languages? | A rising tone is common in a lot of languages, but not all. In Korean, for example, the sentence 'You have a dog' and 'Do you have a dog?' are actually the same identical sentence when written that changes from a statement into question when sㅔoken with a rising inflection. In Chinese, there are particles that can be p... |
If economics is a science, then how can there be such opposing theories within the field itself? | Just because economics is a science doesn't mean there isn't more than one way to look at it. You find opposing theories in other sciences as well. Physics is also a science, yet nobody knows exactly why our universe works the way it does, and there are lots of opposing theories. Also, we don't know all there is to kno... |
How do sperm cells know to swim to the egg? | It's called "chemotaxis"; sperm can detect the presence of chemicals produced by the ovaries, and travel in whichever direction shows an increasing concentration of these chemicals. It's sort of how you locate the source of a smell; move around in circles until you find a direction in which the smell is stronger. |
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