question stringlengths 3 301 | answer stringlengths 9 26.1k | context list |
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why does peanut butter feel so "dry" when eating it? | Because peanut butter contains almost no water at all. I looked it up, and peanut butter is about 2% water.
Compare that to beef jerky, which we tend to think of as very dry, but which is about 24% water. Or wheat flour, which is still 11% water.
Incidentally, the low water content is why you can safely store p... | [
"Peanut butter is a food paste or spread made from ground dry roasted peanuts. It often contains additional ingredients that modify the taste or texture, such as salt, sweeteners or emulsifiers. Peanut butter is served as a spread on bread, toast or crackers, and used to make sandwiches (notably the peanut butter a... |
res | DID SOMEONE SAY REDDIT ENHANC-*slapped*
Okay, You use reddit, obviously. Sometimes you may think about how inconvenient it may be to click the next button after every page, or to proofcheck your formatting, or to filter out the [m] posts in /r/gonewild. A very respectable man by the name of /u/honestbleeps decided to ... | [
"Note: while Regular Component (or commonly called Active Component [AC]) retirees are part of the Total Force of available manpower if needed, they remain part of the AC for life, whether retired for disability or longevity, carried on their Service's AC Retired List in a reduced state of readiness. It is generall... |
why is linux a good choice for embedded platform? | Embedded operating systems aren't always better. It depends on the scale of the project.
My current project utilizes both micro-controller based embedded systems as well as a more powerful Linux based embedded computer.
One of the micro-controller based systems serves only the function of taking in data from a mech... | [
"The advantages of embedded Linux over proprietary embedded operating systems include multiple suppliers for software, development and support; no royalties or licensing fees; a stable kernel; the ability to read, modify and redistribute the source code. The technical disadvantages include a comparatively large mem... |
what can a hacker get from exploiting my laptop's camera? | The one thing that comes to mind is they'd see the inside of your room, so they'd know where in the house you're likely to be. Depending on their purposes, they could either find you quickly or avoid you entirely.
EDIT: No, I am not a psychopath. | [
"Mac Laptops - November 12, 2008, the company launched the Mac laptop version of its software that utilizes the web camera to capture a photo of a thief, as well as the utilization of Wi-Fi positioning to provide location within 10–20 meters. Shortly after the product launch there were a number of stolen laptop rec... |
why do screws/bolts/nuts get loose and have to be tightened, in the first place? | It can be caused by many different things. It has to do with motion of course. I have a wooden chair I use all the time. It squeaks and twists and after about 6 months a screw will fall out and I'll tighten them all up. It's just wear and tear really. Even on industrial machines rattling or a motor vibration will over ... | [
"This self-locking property is one reason for the very large use of the screw in threaded fasteners such as wood screws, sheet metal screws, studs and bolts. Tightening the fastener by turning it puts compression force on the materials or parts being fastened together, but no amount of force from the parts will cau... |
Why does an extremely high resolution image scaled down look "jagged" compared to an image originally at the small size? | that's not always the case, but i see what you're getting at so until a better answer comes along...
imagine a black & white picture that is 10 pixels wide & 10 pixels tall.
10x10 = 100 data points, each with a value ranging from 0 (black) to 255 (white). So, the top row of that picture may look like this 0,0,0,0,2... | [
"When a texture is viewed at a steep angle, the filtering should not be uniform in each direction (it should be anisotropic rather than isotropic), and a compromise resolution is required. If a higher resolution is used, the cache coherence goes down, and the aliasing is increased in one direction, but the image te... |
why big tech companies aren't using their lobbyists to stop sopa. | They are speaking out..
_URL_1_
_URL_0_
_URL_2_ | [
"The leaked prospectus obtained by \"Politico\" suggested that the lobbying group was planning to use the tremendous leverage that tech companies and their leaders had in pushing their agenda to the public, similar to the tactics used for the protests against SOPA and PIPA that were coordinated for January 18, 2012... |
Are "king" and "sultan" completely analogous titles? How would a high medieval king differ differ from a sultan of the time? | My indirect/incomplete answer is of a linguistic nature, but maybe it will be found useful/interesting. It should be noted that the Arabic word for king is not sultan (سلطان) but *malik* (ملك).
In Arabic, nouns are (almost always) derived from verbs which go back to (almost always) three letter roots.
* Sultan deriv... | [
"The sultans further adopted in time many secondary formal titles as well, such as \"Sovereign of the House of Osman\", \"Sultan of Sultans\", and \"Khan of Khans\", these two meaning King of Kings and roughly ranking as \"Emperor\". These titles were known in Ottoman Turkish respectively as \"Hünkar-i Khanedan-i Â... |
why does it take so much water to put out a small bonfire? | Because those coals you're trying to drown are extremely hot. So hot that some of the water you pour on them will evaporate before it even hits the ground. | [
"The bonfire should be gradually burned so far down that there are only glowing pieces of wood left, with almost no flames. The most suitable types of firewood are from hardwood trees similar to beech and oak, but other hardwoods can be used, except for poplar and aspen, which create a sour smoke. Conifers, especia... |
The 1934 World Cup was held in Mussolini's Italy and the 1936 Olympics in Hitler's Germany. Was there any controversy over the awarding of these prestigious events? | I can't speak to the World Cup, but I can dwell a little on the Olympics. This is a slight modification to an earlier response.
For the 1936 Olympics, there was absolutely controversy, resulting in protests and calls to boycott. In the lead up to the games - which had been awarded to Berlin prior to the NAzis taking o... | [
"The third edition of the FIFA World Cup took place in France, where numerous refugees who had escaped the fascist regime in Italy booed the Italian national team. In the first match of the Italian national team, against the Norwegian national team, among the twenty-two thousand spectators there were three thousand... |
why do people hate joe buck? | He's often accused of favoring certain teams.
_URL_0_ | [
"Buck becomes a national hero for his actions in Florida, but he has had enough of celebrity - estranged from his family, harried by his captivity, and badly shaken by the realization that his TV persona has become a role model for violent racists like Blister. He quits \"Bayou Brethren\" and moves back to Milwauke... |
Do flightless birds have hollow bones like those that can actually fly? | The ancestor of all birds had hollow bones, but some birds have lost this trait (or at least partially lost it) to adapt to conditions other than flight, such as diving under water. So loons and grebes have solid bones to aide in diving under water for fishing. True flightless birds such as ostriches and penguins also ... | [
"Birds have many bones that are hollow (pneumatized) with criss-crossing struts or trusses for structural strength. The number of hollow bones varies among species, though large gliding and soaring birds tend to have the most. Respiratory air sacs often form air pockets within the semi-hollow bones of the bird's sk... |
why is it that before an orgasm you have a feeling willingness to do anything, but as soon as the orgasm passes you come to your "senses" (nsfw) | According to some studies about human psychology, our disgust response is literally reduced the hornier you are. Which makes sense. Sex isnt really the most hygienic thing in the world haha. But once you're done, your disgust feelings return to normal. | [
"Normally, a human being is able to feel pleasure from an orgasm. Upon reaching a climax, chemicals are released in the brain and motor signals are activated that will cause quick cycles of muscle contraction in the corresponding areas of both males and females. Sometimes, these signals can cause other involuntary ... |
why do we need such high megapixel cameras if most of our screens and monitors are less than/equal to 1080p, which is less resolution than 3 megapixels? | Because the larger the picture resolution, the more you can do with it. If you take a picture but wanted to crop a portion of it, you can do so, and still retain a high resolution image. | [
"Most widescreen cathode-ray tube (CRT) and liquid-crystal display (LCD) monitors can natively display 1080p content. For example, widescreen WUXGA monitors support 1920x1200 resolution, which can display a pixel for pixel reproduction of the 1080p (1920×1080) format. Additionally, many 23, 24, and widescreen LCD m... |
why do newly released blockbuster films only circulate on the internet when they have been released on dvd? | First of all, cinemas don't get their movies on DVDs (or Bluray for that matter). They used to get movies on movie reels back in the days of analog film. These days cinemas receive a Digital Cinema Package, or [DCP](_URL_0_), which is basically a computer hard drive in a special enclosure which contains the movie.
So,... | [
"From early years of the New Wave till present day, DVD is considered a \"no go\" area, due to the prevalent copyright infringement in the country. In no time, \"New Nollywood\" became synonymous with delayed DVD release, generally taking up to three or four years before release. This is generally because filmmaker... |
why do cars make relatively typical engine sounds when driving forwards, but sound like giant battery-powered rc cars in reverse? | In a manual transmission the reverse gear is a different style of gear that have strait teeth called a spur gear compared to the other gears (1st-5th for example) that have angled gears. The noise you hear is the reverse gear is the teeth of the gear colliding which only occurs on the spur gear where the regular angle... | [
"A reverse gear implemented this way makes a loud whining sound, which is not normally heard in the forward gears. The teeth on the forward gears of most consumer automobiles are helically cut. When helical gears rotate, there is constant contact between gears, which results in quiet operation. In spite of all forw... |
Since the universe is expanding, why doesn't the space in between the atoms and molecules of my body expand as well? | Take all of the mass of the Earth and concentrate it in a symmetric shell. From outside the shell, the gravity you'd feel is the same as you would around the Earth. Inside the shell, however, you feel nothing; the gravity from the shell balances out perfectly. If you put some other object in the center, the only gravit... | [
"Even if the overall spatial extent is infinite and thus the universe cannot get any \"larger\", we still say that space is expanding because, locally, the characteristic distance between objects is increasing. As an infinite space grows, it remains infinite.\n",
"Based on a huge amount of experimental observatio... |
How dangerous are waterspouts? | Waterspouts, generally, are not as dangerous as tornadoes -- they are more akin to "dust devils" than tornadoes. During thunderstorms, there is quite a bit of tight rotation that cannot be seen under normal circumstances. When this rotation occurs over water, the condensing water droplets makes it easy to see. ... | [
"Waterspouts typically do not do much damage because they occur over open water, but they are capable of traveling over land. Vegetation, weakly constructed buildings, and other infrastructure may be damaged or destroyed by waterspouts. Waterspouts do not generally last long over terrestrial environments as the fri... |
how and why does a specific language get established as a country’s second language? | Usually because of either a historical tradition - like if your country's official language was French for the 300 years you were a French colony, and now you're not, it's likely to continue being one of the official languages - or because there exists a significant population of speakers of that language in your count... | [
"The purposes of second language learning are often different from foreign language learning. Second language is needed for full participation in the political and economic life of the nation, because it is frequently the official language or one of two or more recognised languages. It may be the language needed fo... |
why is it that when we talk to an adult with a high voice we can still tell it's an adult? | There are two major forces at work regarding tone and pitch of voice. The first is fundamental frequency of phonation, or the pitch your vocal folds produce. Adult men produce the lowest fundamental frequency, with adult women producing a higher frequency and children an even higher one.
The second factor is resonance... | [
"Voice pitch has also been identified as a factor that can affect voice recognition performance. Individuals are likely to exaggerate their memory for pitch; upon hearing a high pitched voice in an initial presentation (such as the perpetrator's voice in a crime), individuals are likely to choose an even higher-pit... |
How does a jellyfish work? | [This](_URL_0_) Wikipedia page explains jellyfish pretty well. | [
"The jellyfish is translucent, usually about in diameter, and can be recognized by its four horseshoe-shaped gonads, easily seen through the top of the bell. It feeds by collecting medusae, plankton, and mollusks with its tentacles, and bringing them into its body for digestion. It is capable of only limited motion... |
How common were friendships and protection between those of different religions in medieval Europe? | This is a fantastic question, and one which I can't properly answer by myself. But I got a message from the mods that I might be interested, and I am, so I'll say a few things that come to mind.
First of all I consider the protestant reformation (started 1517, give or take) to be after the medieval period. Small quibb... | [
"After the Middle Ages in Europe, same-sex relationships were increasingly frowned upon and banned in many countries by the Church or the state. Nevertheless, Historian John Boswell argued that Adelphopoiesis, or brother-making, represented an early form of religious same-sex marriage in the Orthodox church. Alan B... |
if a body is interred in concrete, will it mummify or decompose - will it leave a big hole where it was like a fossil? | [This experiment](_URL_0_) suggests that partial mummification happens, but yes, bodies still decompose (more slowly) because of the bacteria within our body eating us once our immune system ceases function. | [
"Burial was not always permanent. In some areas, burial grounds needed to be reused due to limited space. In these areas, once the dead have decomposed to skeletons, the bones are removed; after their removal they can be placed in an ossuary.\n",
"The excavation uncovered 52 human skeletons spread across 58 chamb... |
How "serious" were religious beliefs in ancient Greece and the Roman Empire, and what role did they actually play in everyday life? | You might find these previous discussions useful:
* [Were there religious fundamentalists in ancient Greece and Rome?](_URL_3_)
* [Did Romans really believe that Emperors were gods?](_URL_2_)
* [What did religion mean in ancient greece and rome?](_URL_0_)
* [Were there religious cults in ancient Rome and Greece?](_URL... | [
"There is, however, no reason to suppose that there was a decline in the traditional religion. There is plenty of documentary evidence that the Greeks continued to worship the same gods with the same sacrifices, dedications, and festivals as in the classical period. New religions did appear in this period, but not ... |
Are there any credible scientists questioning evolutionary theory and/or pointing out a need for more specific data? | I asked this of a famous professor in my evolutionary biology class, thinking it was a stupid question. The answer is no. Evolution happens. The debate centers around the particular drivers and patterns of speciation. See: Punctuated Equilibrium vs. Phyletic Gradualism.
There is also debate on how closely behavior... | [
"The use of phylogenetic analysis in the detection of HGT was advanced by the availability of many newly sequenced genomes. Phylogenetic methods detect inconsistencies in gene and species evolutionary history in two ways: explicitly, by reconstructing the gene tree and reconciling it with the reference species tree... |
Why when you chop an ant's head off, both, its head and torso keep moving separately for a while, but when something similar happens to a mammal, it immediately dies? | Newborn mice continue to move for up to about 30 seconds after they have been decapitated. If you squeeze a paw on the body after they have been decapitated, the body will respond similarly to how it does before it was decapitated. The movements are all likely just reflexes.
Source: working in a bio lab doing brain... | [
"The ant who lost the ritual fight will lower its body, and lean sideways from the victorious ant. The victorious ant will remain raised upward and reach down to the worker and open its mandibles wider, grasping on the opponent's mandibles, and then tug and shake its head slightly for a few moments. However, the fi... |
Can Satellites be placed in the orbit so they always stay in the dark side? | They would have to be at the L2 Lagrange Point, always on the opposite side of the Earth as the sun. This is about four times farther than the moon, and is more of a solar orbit than an Earth orbit (although you could say it's an Earth orbit with a period of one year). We occasionally send space telescopes there. | [
"BULLET::::- Sun-Sync LEO: In this near Polar Orbit, the satellites precess at a rate that allows them to always face the Sun as they rotate around Earth. This is an easy to access orbit requiring far less energy, and its proximity to Earth requires smaller (and therefore less massive) transmitting apertures. Howev... |
Has any violent international conflict been successfully pacified by transferring aggressions to a sporting event or other non-lethal competition? | Google has failed me, but I recall hearing about two villages in Central Asia that used to be violent rivals, but now have a regular tradition of playing against each other in [Buzkashi](_URL_0_) matches. Anyone know anything about this, or am I completely making stuff up? | [
"One-sided violence is defined as: \"The use of armed force by the government of a state or by a formally organized group against civilians which results in at least 25 deaths in a year”. Examples include actions by the governments of Sudan, Myanmar, and Syria against civilians, as well as actions of non-state orga... |
why is it that sometimes i wake up in the middle of the night being more refreshed than i ever am at 7am? | I don't know the exact science, but when you wake up at 3 you probably woke up naturally. When you wake up at 7 am I'm guessing you wake up with an alarm clark. People are more likely to have harsher wake ups when their deep sleep cycle is interupted | [
"Many people experience a temporary drop in alertness in the early afternoon, commonly known as the \"post-lunch dip\". While a large meal can make a person feel sleepy, the post-lunch dip is mostly an effect of the circadian clock. People naturally feel most sleepy at two times of the day about 12 hours apart—for ... |
Was there truly a dark side to Winston Churchill like this article suggests? | I hate that "poison gas" quote. It is always taken out of context, and it is just a cheap kind of character assassination because it sounds like advocating for deadly poison like mustard gas, when in fact it was _humanitarian_ idea: using _tear gas instead of artillery shells_. You could say Churchill wanted to invent ... | [
"Winston Churchill made repeated claims about the imminent fall of the Soviet Union throughout his political career. In January 1920, he denounced Bolshevism as a \"rule of men who in their insane vanity and conceit believe they are entitled to give a government to a people which the people loathe and detest... The... |
how does the 'skylanders' video game work? | I would assume RFID chips in the figurines so the game knows which ones are being used. | [
"Skylanders: Swap Force is a platformer video game developed by Vicarious Visions and published by Activision. It is the third main game in the \"Skylanders\" video game and toy franchise, following 2012's \"\", which was a direct sequel to 2011's \"\" (the spin-off of \"The Legend of Spyro\" series). It is the gam... |
why is the weather currently in north african countries (which are known to be one of the hottest countries in the world) cloudy and rainy in the middle of the summer? | When water is heated, it evaporated and forms clouds. Simple right? If you have a large mass of water that is heated quickly, a lot of clouds are formed. Then those clouds block out the sun and heat, and rain back on the earth. It is a simple cycle that occurs in excessively hot places, such as Australia. | [
"Drier and hotter weather occurs in parts of the Amazon River Basin, Colombia, and Central America during El Niño events. Winters during the El Niño are warmer and drier than average conditions in the Northwest, northern Midwest, and northern Mideast United States, so those regions experience reduced snowfalls. Con... |
How plausible is the idea/concept that someone might die (or whose death my be accelerated) by heartbreak? | Extremely plausible
_URL_0_ | [
"Until yesterday I had no definite intention of killing myself. But more than a few must have noticed that lately I have been tired both physically and mentally. As to the cause of my suicide, I don't quite understand it myself, but it is not the result of a particular incident, nor of a specific matter. Merely may... |
how does europe have a similar climate to much of the us, despite the fact that they have the same latitude as much of canada? | The gulf stream is a warm oceanic current that sort of sweeps north up the North American east coast, then across towards Europe. Therefore it carries warm water towards Europe, which makes the climate there warmer than corresponding North American latitudes. | [
"This difference is even larger on the northern part of the continent. The January average in Brønnøysund, Norway, is almost 15 °C warmer than the January average in Nome, Alaska, both towns are situated upwind on the west coast of the continents at 65°N, and as much as 42 °C warmer than the January average in Yaku... |
I am a scientist who studies things. AMA! | Hello, thanks for doing this AMA! I was wondering, what is it like to be a scientist? | [
"Her current research centers on artificial intelligence; biosystems and computational biology; control, intelligent systems, and robotics; graphics and human-computer interaction, computer vision; and security.\n",
"Prof. Elad appeared in the for the years 2015, 2016, 2017, and 2018, published by Clarivate Anal... |
How do newborns get full length telomeres? | The enzyme telomerase can lengthen telomeres, however it is only active in small portion of cells (including gametes, hence why children newborns don't have short telomeres). Uncontrolled expression of the telomerase gene is believe to underlie the "immortality" of cancer - probably a good reason for the body not to us... | [
"Telomeres are specialized protein–DNA constructs present at the ends of eukaryotic chromosomes, which prevent them from degradation and end-to-end chromosomal fusion. Introductory biology courses often describe telomeres as a type of chromosomal aglet. Most vertebrate telomeric DNA consists of long (TTAGGG)n repea... |
why are so many people "anti fur" but wear leather goods? | Fur generally comes from animals that are bred specifically for their fur and skinned alive to prevent damage, leather is largely a byproduct. | [
"The use of animal fur in clothing dates to prehistoric times. It is currently associated in developed countries with expensive, designer clothing, although fur is still used by indigenous people in arctic zones and higher elevations for its warmth and protection. Once uncontroversial, it has recently been the focu... |
were people smarter back in shakespeare's day? | > Did Shakespeare write for the "common person"?
Very much so. That's why his works have been so enduringly popular. They contain deep meanings and complicated plots, as well as some good action and the occasional butt joke. Something for everyone. | [
"His interest in Shakespeare dated back to high school, though he once confessed that his notion of a good read consisted back then of reading a Brooklyn Dodger box-score sheet. Shakespeare classes tortured him for the impression they gave that Shakespeare wrote footnotes. Yet one day, while walking down Flatbush A... |
if the earth is rotating eastward at 465 miles per second at the equator, how is it that planes flying east get to their destination in a reasonable time? | The Earth's rotation is actually about a thousand miles per hour at the equator. And the air the plane is flying through rotates with the planet, for the most part--otherwise, there would be a constant 1000MPH wind coming from the east, now, wouldn't there? | [
"For example, consider an airplane that travels in a straight line, takes a 90-degree right turn, travels another , takes another 90-degree right turn, and travels a third time. On a flat Earth, the aircraft would have travelled along three sides of a square, and arrive at a spot about from where it started. But be... |
Was there any important historial texts or artifacts lost or destroyed by the devastation of WWII? | The loss of [Montecassino](_URL_0_) always makes me sad. It was rebuilt, but, who knows how many details were lost? How many little etchings, engravings, how many evidences of hands across a knob or feet shuffled across a floorway? How many lost or secret passages, nooks, crannies? How many remnants of how many liv... | [
"Parts of the collection were removed for safekeeping during World War II, but a large number of the remaining items were destroyed during a bomb raid on the building in 1943, including the Ibach pianos, the archive and the library. After the war it transpired that the items which had been removed were also signifi... |
Infinitely small probability? | There are different problems here.
First, in the usual setting there is no "infinitely small" number. So a probability is either 0 or is strictly positive.
Second, in probability theory, an event can have a probability equal to 0 but without being impossible. That's because a probability behaves like a measure of are... | [
"The number itself also has applications to probability theory, where it arises in a way not obviously related to exponential growth. Suppose that a gambler plays a slot machine that pays out with a probability of one in and plays it times. Then, for large (such as a million) the probability that the gambler will l... |
How close get two solar systems the size of our own get without actually affecting each other. | There would always be some pull, however very minuscule depending on distance.
According to Newton's Law, every point of mass in the universe affects each other.
> Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proporti... | [
"The binary system has an orbital period of 2 days, 5 hours, and 56 minutes. The two stars are separated by only 15 times the width of the sun, or less than twice their own diameters. The more massive primary orbits at 200 km/s, while the secondary moves at 350 km/s, and the system as a whole is approaching us at a... |
Why is it “a university” and not “an university”? | The "u" in university is actually a diphthong. That is, it is two separate sounds.
The first is "y," as in the color yellow. You've probably heard that in English there are five vowels, and sometimes y. Well, this is because y is a semivowel. Say the word "you." Pretty hard consonant sound there, yeah? But wait. Try h... | [
"BULLET::::- University – A university is an institution of higher education and research, which grants academic degrees at all levels (bachelor, master, and doctorate) in a variety of subjects. A university provides both undergraduate education and postgraduate education. The word \"university\" is derived from th... |
Does the size of a nebula affect the size of the stars that are formed from them? | Yes to some degree, but it’s more about the conditions of the cloud. [This](_URL_0_) says that larger stars come from clouds that are larger/denser but resist gravity longer before collapsing, probably because they are supported by magnetic fields. | [
"Theoretical models predict that planetary nebulae can form from main-sequence stars of between one and eight solar masses, which puts the progenitor star's age at greater than 40 million years. Although there are a few hundred known open clusters within that age range, a variety of reasons limit the chances of fin... |
Why do blue flames not give off more light than orange flames? | There are a couple of things going on here (such as the "surface area" of the flame), but the main thing is how we see light. If we extrapolate your example to even hotter flames that are mostly ultraviolet, the room would go back to appearing dark. Our eyes are evolved to see light based on the Sun's spectrum, which p... | [
"In a laboratory under normal gravity conditions and with a closed oxygen valve, a Bunsen burner burns with yellow flame (also called a safety flame) at around . This is due to incandescence of very fine soot particles that are produced in the flame. With increasing oxygen supply, less black body-radiating soot is ... |
if warm air expands, then why does cool air expand in adiabatic cooling? | You have it backward. Adiabatic cooling occurs when air is forced to expand, like when it is pushed to a higher elevation by rising land. The air becomes cool due to the expansion, it doesn't expand because it is cool. Adiabatic simply means the temperature change is occurring without heat or mass transfer. | [
"Adiabatic cooling occurs when the pressure on an adiabatically isolated system is decreased, allowing it to expand, thus causing it to do work on its surroundings. When the pressure applied on a parcel of air is reduced, the air in the parcel is allowed to expand; as the volume increases, the temperature falls as ... |
what makes a cable a 'fast charge' cable? | Certain USB cables have specific resistance values between pins embedded into them to signal that they are suited for high-current charging. This in turn signals the phone it is allowed to draw higher currents from the wall plug (which has a similar mechanism).
The important thing to take away here is that the *phone*... | [
"John Lewis and Currys defended the practice of charging for cables by pointing out the various features of their cables. Kogan responded by stating: \"I think it's a bit misleading what they've said. When it comes to durability, it's an HDMI cable that you'll use to connect your TV to a Blu-ray player, or a Playst... |
Are quarks made of smaller building blocks? | There is no evidence that quarks are made of anything smaller. Of course, it is *possible* that they are with the evidence only emerging if we get to probe smaller distances, but so far, there is no data to support such a notion. | [
"Kalman observes that, according to the concept of atomism, fundamental building blocks of nature are indivisible bits of matter that are ungenerated and indestructible. Quarks are not truly indestructible, since some can decay into other quarks. Thus, on fundamental grounds, quarks are not themselves fundamental b... |
synesthesia: when people associate numbers with colours, do they associate the concept of that number, or its written symbol with a certain colour? | I have a mild synesthesia which associates numbers (and letters) with gender. When I think of the number 7, one of the things about it is that it's male, but it's not the main, most interesting thing. It's just like when I think about my dad, maleness is part of what I think about, but rarely the most important or rele... | [
" A common example of synesthesia is the association between graphemes and colors, usually referred to as grapheme-color synesthesia. Here, letters of the alphabet are associated with vivid experiences of color. Studies have indicated that the perceived color is context-dependent and is determined by the extracted ... |
how do open air markets keep fish fresh? | They have it on loads of ice in a special open topped unit that i think helps to keep it cool. Then they just try to shift all their stock on the same day | [
"While the locations selling fresh and frozen fish dominate the market, there are a number of other businesses in the facility as well. The market also has a large number of prepared food stands selling tamales, tacos, cocktails, fillets and other seafood dishes. There are also business selling knives, copper cookw... |
Prior to the existence of pollinating insects, how did plants reproduce sexually? | Pollen is a relatively recent invention. It evolved around the same time as the seed. The first types of pollination were almost certainly by wind -- there is clear evidence for this from fossil plants (their anatomy and morphology is consistent with wind pollination).
Your question is more broadly about sexual reprod... | [
"The early spermatophytes (seed plants) were largely dependent on the wind to carry their pollen from one plant to another, and it was around 125 to 115 million years ago that a new pollination strategy developed and angiosperms (flowering plants) first appeared. Before that, insect involvement in pollination was l... |
"kony 2012" | Honestly, the video that's going around is pretty self-explanitory (and even includes, funnily enough, a scene where the narrator explains the campaign to his young son), but if you don't have 30 minutes to spend:
There is a man who lives in central Africa, usually in Uganda, named Joseph Kony. Kony appeared as a publ... | [
"\"Koni\" is an inspirational story of a coach and his trainee Koni who fight all odds to achieve their aims. Khidda (Soumitra Chatterjee) is a swimming coach who teaches swimming to underprivileged kids. He picks Kony (character played by Sriparna Banerjee) from a slum of Calcutta and grooms her to be part of the ... |
Napoleon once said, "An army marches on its stomach". How did he keep his army fed during a campaign? | I recall a similar question being asked late last year, and it led me to discover the fascinating "Diary of a Napoleonic Foot Soldier."
It said that the soldiers in Napoleon's army were expected to purchase their own provisions from local merchants. This practice worked well in Western and Central Europe, but once th... | [
"One of Napoleon's most quoted lines is his dictum that \"An army is a creature which marches on its stomach\". This clearly illustrates the vital importance of military logistics. The troops of the Grande Armée each carried 4 days' provisions. The supply wagon trains following them carried 8 days', but these were ... |
How common and/or acceptable was conversion to Judaism in the 19th and early 20th century? | I can't talk about the US, settler colonies and the rest of Europe, but conversions were definitely happening in Britain- usually as the community bonds from immigrant communities weakened. The majority of converts then, and possibly even now, were women, who converted before marrying their Jewish husband- and for many... | [
"Though forced conversions were less common in the 20th century, missionary activity remained strong, and many Jews chose to convert in order to integrate into secular society. A critical period in Britain followed when many of the chief Sephardic families — including the Bernals, Furtados, Ricardos, Disraelis, Xim... |
how do pc games work? | A game typically doesn't need to know exactly what hardware it's running on. If it wants to draw something on the screen it'll tell DirectX (for example) "I want to draw a thing, here's what it looks like," and DirectX handles the rest, which involves speaking to the CPU/GPU. The game doesn't care how DirectX does that... | [
"Players are able to control their characters and interact with the virtual world by using various controller systems. When using a PC, a typical example of a games control system would be the use of a mouse and keyboard combined. For example, the movement of the mouse could provide control of the players viewpoint... |
how do filmmakers get footage of the inside of a bug without killing it? | The same way they get cameras inside humans. Either through an existing opening or through a surgical opening and a small camera | [
"The scenes of beetles crawling out of corpses were shot and filmed using real insects as well as real actors. During one scene in which a victim's body is discovered, over 3,000 live beetles were shot crawling on the body of Mike Hungerford, the portraying actor. Producer Harry Bring later claimed that the bug sce... |
why exactly is google translate bad? | I'm an ESL teacher and I hate google translate.
Google translate is bad because it doesn't take into account context when offering translation, and is incapable of comprehending idiomatic expressions and some phrasal verbs.
Pretty much every word has some polisemy, multiple meanings in different contexts. For examp... | [
"It is not known whether this feature of Google Translate was the result of a joke/hack or perhaps an unintended consequence of the use of a method such as statistical machine translation. Reporters from CNET Networks asked Google for an explanation on January 24, 2008; Google said only that it was an \"internal is... |
High school level physics experiments | Crawford's book *Waves* (volume 3 of the Berkeley Series), while a college text, has a whole collection of "home experiments" throughout it. I can't recall how much they depend on your having gone through the material in his book, and how much they'd just be interesting to do anyway, but it's definitely worth a look. | [
"Similarly, Hoellwarth & Moelter (2011) showed that when instructors switched their physics classes from traditional instruction to active learning, student learning improved 38 percent points, from around 12% to over 50%, as measured by the Force Concept Inventory, which has become the standard measure of student ... |
how are police checkpoints/roadblocks legal? | Because they are stopping you based on public road safety, and they are stopping everyone
If they were searching for drugs, it wouldn't be legal (unless it's at a border)
If they were only stopping young males, it wouldn't be legal (unless they were searching for someone who matched that description and it was linked... | [
"Police also use hastily set up roadblocks to check cars and car trunks when they are pursuing an armed and dangerous fugitive, such as an escaped maximum security prisoner or a suspected armed robber or murderer who is believed to be fleeing from police. Police at such a checkpoint may be armed with shotguns, subm... |
password strength | The most common way to break a password is by simply guessing. And computers can make a lot of guesses, easily finding short passwords and passwords based on common words.
To make passwords stronger:
* make them longer
* use more charcters (uppercase, numbers, punctuation)
* avoid common words
Of these, length is b... | [
"Password strength is a measure of the effectiveness of a password against guessing or brute-force attacks. In its usual form, it estimates how many trials an attacker who does not have direct access to the password would need, on average, to guess it correctly. The strength of a password is a function of length, c... |
Bulgaria's Military Role in WWII? | I am not an expert on WW2 or Bulgaria at all but recently Simeon II of Bulgaria, former Tsar of Bulgaria made several interview in various French radio stations and I listened to all of them.
Bulgaria's role during WW2 mostly is due to Tsar Boris III's politics.
Following Bulgaria's defeat in WW1 and the abdication ... | [
"The military history of Bulgaria during World War II encompasses an initial period of neutrality until 1 March 1941, a period of alliance with the Axis Powers until 9 September 1944 (on 8 September, the Red Army entered Bulgaria) and a period of alignment with the Allies in the final year of the war. Bulgaria func... |
Is Nuclear Transportation possible? | Cars based on conventional nuclear technology wouldn't really be feasible. Nuclear-powered trains have been researched (do a search for "Nuclear Locomotive" if you are interested), but these are still not very feasible. A [nuclear-powered bomber](_URL_0_) was also pursued for a bit, but was made obsolete by cruise mi... | [
"Based on work in the late 1950s to the early 1960s, it has been technically possible to build spaceships with nuclear pulse propulsion engines, i.e. driven by a series of nuclear explosions. This propulsion system contains the prospect of very high specific impulse (space travel's equivalent of fuel economy) and h... |
why do we have so little control over our bodies? | You evolved from creatures that developed random solutions to problems that may or may not have actually been good solutions. All that mattered for the solution to become prevalent was wether or not it made the creature more likely to reproduce. You will notice that cancer is very rare among individuals who are younger... | [
"Because we are in a position to influence, to some degree, how well another person’s life goes for them (even in very minor ways), we find ourselves in a position of power over them, and “Because power is involved in every human relationship, we are always in advance compelled to decide whether to use our power ov... |
View of the average German on the Holocaust during the war | Not to discourage further discussion, but you might be interested in some of u/commiespaceinvader ‘s previous answers:
* [How much did the Wehrmacht on the Eastern Front know about the German atrocities and the holocaust? For those that were aware of these events (or even participants), how did they rationalize these ... | [
"Debate continues on how much average Germans knew about the Holocaust. Robert Gellately, a historian at Oxford University, conducted a widely respected survey of the German media before and during the war and concluded that there was substantial participation and consent from large numbers of ordinary Germans in v... |
why do our muscles get sore? what actually happens in our body to cause this? | As you work out, you create micro-tears in your muscle fibers. These tears are very important because your body will release certain growth hormones to help in their repair, which will cause your muscles to grow stronger. These tears will cause some inflammation to occur in the muscle as more blood flow is directed tow... | [
"Soreness is one of the temporary changes caused in muscles by unaccustomed eccentric exercise. Other such changes include decreased muscle strength, reduced range of motion, and muscle swelling. It has been shown, however, that these changes develop independently in time from one another and that the soreness is t... |
what are the physically causes of flashbacks? | Flashbacks are essentially just memories, all memories are a combination of your 5 senses (there are more than 5 in actuality but for simplicity sake we will stick to the 5 basic) touch, smell, sight, taste, hearing. Each memory/experience is a pattern of neurons firing and exchanging information due to the brains inte... | [
"To date, the specific causes of flashbacks have not yet been confirmed. Several studies have proposed various potential factors. Gunasekaran et al., 2009, indicate there may be a link between food deprivation and stress on the occurrence of flashbacks. Psychiatrists suggest temporal lobe seizures may also have som... |
if everybody is slowly getting richer, where is all the extra money coming from? | Money is just a representation of value creation and value is constantly created. For example someone could buy a $2 notebook and $1 pen and create a $1.000.000 screenplay. | [
"In reality, what is happening is mass market will continue to buy and contribute to the wealth of a few. These few will continue to reinvest and the money will continue to stay within the rich. Even if you are a well-to-do middle income now, if you continue to buy non-value items, by the time you lose your income ... |
why/how is good friday and easter in march this year? | _URL_0_
> Easter and the holidays that are related to it are moveable feasts, in that they do not fall on a fixed date in the Gregorian or Julian calendars (both of which follow the cycle of the sun and the seasons). Instead, the date for Easter is determined on a lunisolar calendar similar to the Hebrew calendar.
... | [
"Good Friday is the Friday before Easter, which is calculated differently in Eastern Christianity and Western Christianity (see Computus for details). Easter falls on the first Sunday following the Paschal Full Moon, the full moon on or after 21 March, taken to be the date of the vernal equinox. The Western calcula... |
Why is it that hybrid animals like mules are infertile, but allopolyploidy plants are fertile? | Some hybrid animals are infertile because chromosome numbers ( I think mules have 63 vs. 64 for a horse, something like that) do not match and prevents pairing of chromosomes. Some hybrid animals are perfectly fertile, however.
As for plants - they tend to be more tolerant of gene dosage issues anyway, and obviously i... | [
"Hybrid sterility can be caused by different closely related species breeding and producing offspring, these animals are usually sterile due to different numbers of chromosomes from the two parents, causing an imbalance in the resulting offspring making it viable but not fertile, this is the case with the mule.\n",... |
what is preventing youtube from utilising adblock detector and disallowing users from watching videos until they disable the web extension? | Blocking the browser extension will encourage people like myself to block ads at the router level which takes my whole household of five people off their ad network | [
"Content filtering in general can \"be bypassed entirely by tech-savvy individuals.\" Blocking content on a device \"[will not]...guarantee that users won't eventually be able to find a way around the filter.\"\n",
"Blocked users may be completely unable to access all or part of a site's content, which is usually... |
how do pawn shops make up for lost money when cops take back stolen property? | They charge such high prices on everything else that it makes up for any losses. This is how all stores make up for shoplifting actually, they increase all their prices a bit so that they won't really be hurt if a small amount of stuff gets stolen. | [
"Pawnshops were also often affiliated with fencing stolen goods. The owners or employees of such shops often paid cash for stolen goods at a price a great deal below market value to bandits, that were often desperate for money, and resold the goods to earn a profit.\n",
"Pawnshops were also often affiliated with ... |
the force required to suck a golf ball through a garden hose. | When we approach this in physics, we typically have to look at the force necessary to deform the outer casing of the garden hose around the thicker, but relatively more aerodynamic golf ball (we're assuming that the metal ends have been cut off). As the hose deforms, friction forces around the ball will try to prevent ... | [
"BULLET::::- \"Ball retrievers\" are telescoping poles with a device at the end that scoops up and traps golf balls, and are used for reclaiming a ball from a water hazard. These are allowed under strict rules (provided of course the proper one-stroke penalty is assessed for hitting the ball into the water in the f... |
how do texting gloves and normal gloves differ so you can type with them on? | Phone touch screens work by sensing the conductivity of your skin. Regular gloves insulate that conductivity blocking your phone from knowing you're touching it. Texting gloves have conductive tread in the fingertips so your phone can sense your touch. | [
"The gloves have sensors that track the users hand movements and then send the data to a computer system via Bluetooth. The computer system analyzes the data and matches it to English words, which are then spoken aloud by a digital voice. The gloves do not have capability for written English input to glove movement... |
how do online pharmacies get my e-mail address? | Likely they bought a whole list of addresses from a company you gave it to. | [
"Legitimate mail-order pharmacies are somewhat similar to community pharmacies; one primary difference is the method by which the medications are requested and received. Some customers consider this to be more convenient than traveling to a community drugstore, in the same way as ordering goods online rather than g... |
Is the concept that people before the advent of Modern Medicine lived near the same length when excluding factors such as Mortality rates before the age of 5, founded in fact? | You might be interested in [this paper](_URL_0_), which reviews life expectancy across different types of cultures around the world.
As you note, infant and child mortality take a heavy toll on average life expectancy. Among hunter-gatherers, only 57 percent of children live to age 15. Of those who reach that age, 64... | [
"In preindustrial times, deaths at young and middle age were more common than they are today. This is not due to genetics, but because of environmental factors such as disease, accidents, and malnutrition, especially since the former were not generally treatable with pre-20th-century medicine. Deaths from childbirt... |
how do banks prevent you from taking money out of someone else’s account? | Why would you steal money by transferring it into your account? Might as well just walk yourself into jail at that point.
Beyond that you’d still need to log in to their online account or swipe their debit card at the bank with their pin. It’s not as easy as just using someone’s routing number. | [
"If the banks are unable to find any error in their side, they conclude that the withdrawals were done by the customers. Many experts ascribe phantom withdrawals to criminal activity done using the banking network itself. \n",
"By transferring the ownership of deposits from one party to another, banks can avoid u... |
What is the history of the United States accepting so many refugees compared to the rest of the west? | FYI: It's a 20 year rule, not a 10 year rule. | [
"Since World War II, more refugees have found homes in the U.S. than any other nation and more than two million refugees have arrived in the U.S. since 1980. During much of the 1990s, the United States accepted over 100,000 refugees per year, though this figure has recently decreased to around 50,000 per year in th... |
Could you have a binary set of moons that orbit a planet together? Not 2 moons in separate orbits, but a pair or moons rotating around each other and orbiting a planet as well. | These orbits are very difficult to get. The two moons would need to be quite far from the planet, the planet would need to be far from its star (the planet would need a very large Hill Sphere, like Neptune).
In such a situation, a binary moon would be stable.
How it would form is another matter. The angular momentum ... | [
"Several systems are known to orbit a common centre of mass and are known as binary companions. The most notable system is the Plutonian system, which is also dwarf planet binary. Several minor planets also share this configuration, including \"true binaries\" with near equal mass, such as 90 Antiope and (66063) 19... |
How did the scholars interpret ancient/extinct language? | There's always more to be said on the topic, but I discussed the decipherment of cuneiform in [When did the modern understanding of the history of Bronze Age Mesopotamia develop?](_URL_0_) | [
"In the case of Bronze Age literature, philology includes the prior decipherment of the language under study. This has notably been the case with the Egyptian, Sumerian, Assyrian, Hittite, Ugaritic and Luwian languages. Beginning with the famous decipherment and translation of the Rosetta Stone by Jean-François Cha... |
Risk Factors vs Indicators for Disease - What's the difference? | A risk factor is a quantity that tells you how likely someone is to develop a disease. For example, being female is a risk for breast cancer (but not all females develop breast cancer, and not only females develop breast cancer).
A disease indicator is a quantity that tells you something about the disease burden in so... | [
"Risk factors are variables that contribute to disease, rather than being factors that induce disease. Risk factors may be seen as modifiable and non-modifiable. Modifiable risk factors are often behavioural in nature and can be changed by the individual or environmental circumstances, whereas non-modifiable are us... |
how a subpoena works and how it's not active until you've been "served"? | A subpoena is an order to provide evidence for a court, whether that be by providing documents or by showing up somewhere to testify (in some cases it can be issued by legislatures and executive agencies; those can play by slightly different rules). It's formally issued by a court, but it's normally *actually* issued b... | [
"A \"subpoena\" commands a person to appear. It is used to compel the testimony of a witness in a trial. Usually, it can be issued by a judge or by the lawyer representing the plaintiff or the defendant in a civil trial or by the prosecutor or the defense attorney in a criminal proceeding. In many jurisdictions, it... |
Is any of this stuff about Martin Luther King Jr. true or based on any historical facts? | Did this person provide you with any sources at all? MLK and the black freedom struggle is what I read most about, and I have never come across a source that states this, although such a source might exist.
I think it's highly unlikely though, that he would have acted in such a way - as I'm sure you're aware, MLK's ov... | [
"The conspiracy theories surrounding the assassination of Martin Luther King Jr., a prominent leader of the civil rights movement, relate to different accounts of his assassination that took place on April 4, 1968, in Memphis, Tennessee. King was assassinated on the balcony of the Lorraine Motel, the day after givi... |
when something breaks the sound barrier what makes the loud crack sounds? | This woman explains it better than I could _URL_0_ | [
"Crackling noise arises when a system is subject to an external force and it responds via events that appear very similar at many different scales. In a classical system there are usually two states, on and off. However, sometimes a state can exist in between. There are three main categories this noise can be sorte... |
why are human kids so useless for so long compared to almost every other animal? | We are born with small brains to fit through the womb. It takes along time for our brains to grow and mature because of its massive potential compared to animals.
Animal brains aren't like ours | [
"Children are often victims of sacrifice for various reasons, the most common being they are relatively easy to abduct. As they are far more vulnerable than adults, children are more easily lured in or unable to fight back.\n",
"BULLET::::- Several commentators, including Bernd Beber, Christopher Blattman, Dave G... |
During the Cold War, how freely were military vehicles like U.S. M48 tanks allowed to move to and from West Berlin through East German territory? | Informal agreements with the Soviets in the immediate aftermath of the war allowed for rail and autobahn access for each of the three Allies (US, UK, France) to transverse the Soviet zone to resupply their Berlin contingents. The Soviets and later the GDR honored these agreements in the aftermath of the failed Berlin b... | [
"The Soviet invasion of Manchuria was the last military operation in which Soviet T-26 was used. The Red Army had 1,461 T-26s in the far east on 5 August 1945 (1,272 of these were in operable condition). There were many old tanks (mainly T-26 and BT-7 tanks) in far eastern separate tank brigades; these had remained... |
A substantial number of slaves brought to the Americas were Muslim. What remnants of pre-colonial Islam survived in black diaspora communities though colonialism? | Hey there! Interesting question. I am not qualified to speak on the remenants of Islam and it’s intigration into Caribbean, Centeral American, or South American culture. I am quite familiar with American slavery and Muslims who lived in those communities, so I will primarily address that point. Hopefully someone else c... | [
"Some West African slaves taken to the Americas by colonists may likely have been Muslims, although they became forcibly converted to Christianity. Most Muslims in the former British Caribbean came from the Indian subcontinent as labourers following the abolition of slavery. This movement also reached Suriname, alt... |
why can't we distinguish the temperature of an object you're expecting could be hot or cold, straight away when we first touch it? | It's a delay in the body. An easy way to explain it is reaction time. If someone threw something at your face and you even knew it was happening, your time is delayed. Your brain would need to process about where the object is heading, how fast, how quickly you need to be to catch it, or how quick you need to be to dod... | [
"An object at a different temperature from its surroundings will ultimately come to a common temperature with its surroundings. A relatively hot object cools as it warms its surroundings; a cool object is warmed by its surroundings. When considering how quickly (or slowly) something cools, we speak of its \"rate\" ... |
why does the handicapped stall seem to be universally preferred by people using the restroom? | It's bigger and offers a sense of privacy you don't get when shitting literally within arms length of another person. Also, there are shitting bars in there. You know, those bars on the side for when you really have to push one out. | [
"Public toilets (aka restrooms) can present accessibility challenges for people with disabilities. For example, stalls may not be able to fit a wheelchair, and transferring between the wheelchair and the toilet seat may pose a challenge. Accessible toilets are designed to address these issues by providing more spac... |
why does multiplication and division take precedence over addition and subtraction? | At the end of the day it's just the convention everyone agreed on. We could change the convention just fine, it just means we'd need to write our equations differently.
But there is a certain kind of logic. For example, multiplication is considered to be repeated addition. That is, 3x3 = 3+3+3
With multiplication tak... | [
"Unlike multiplication and addition, Division is not commutative, meaning that is not always equal to . Division is also not, in general, associative, meaning that when dividing multiple times, the order of division can change the result. For example, , but (where the use of parentheses indicates that the operation... |
The pyramids survived but have any of the palaces of the pharaohs? | In general, sites in the Nile valley are poorly preserved, because of the damp environment, continual flooding, and soft loamy soil. In contrast, sites out in the desert are well preserved because of the dry conditions.
Tombs tended to be built out in the desert, while palaces (and dwellings in general) would be near ... | [
"The first of these pyramids, Lepsius XXIV, consisted of the pyramid, mortuary temple and small cult pyramid. Extensive damage to the tomb's structure, due to stone thieves in the New Kingdom, has left the structure in ruins, though some details can be discerned. The mortuary temple was built on the east face of th... |
what are the concrete "balls" you can see at power plants used for? | Those domes are "containment buildings" for nuclear power plants. They have thick concrete walls to stop radioactive steam from getting out if the nuclear reactor breaks.
Source: _URL_0_
(Scroll down to see the pictures.) | [
"A ball mill is a type of grinder used to grind, blend and sometimes for mixing of materials for use in mineral dressing processes, paints, pyrotechnics, ceramics and selective laser sintering. It works on the principle of impact and attrition: size reduction is done by impact as the balls drop from near the top of... |
how does modern game texturing work, example inside... | I am a 3D modeler/animator and the easiest way for me to explain it to non-3D people is like this.
Think of a 3D model (game object) as a deer. UV map is what I would consider the skin of the deer. To properly apply textures/colors/shading etc you need to unwrap the UV's, or skin the deer.
It is a bit of a proc... | [
"Technology in the early 2000s expanded to allow text to be stored in ASCII strings instead of in picture format, allowing for more efficient processing and more storage space for housing text. Better audio capabilities and reliance on voice acting created new challenges and avenues for translation, allowing the us... |
is the value of fat created by my body affected by what i ate to create it? | In a word, no. Fat has the same basic chemical formula no matter what you eat.
Liken it to melting down a car to make something new from the metal. It wouldn’t matter whether you started with a Ford or a Mercedes, because after you melted it down you’d be left with the same metal. | [
"An increase in fat metabolism can be the result of starvation or malabsorption, the inability to metabolize carbohydrates (as occurs, for example, in diabetes) or due to losses from frequent vomiting.\n",
"In the autonomic system it is produced mainly by neurons of the sympathetic nervous system and serves as a ... |
weight gain and differing ratios. | Everyone has different metabolisms; yours likely burns less efficiently than that of your friends.
It's also worth noting that eating junk food doesn't make you gain weight, eating *too much* makes you gain weight; at the end of the day, calories are all that really matter when it comes to weight gain. A man famously... | [
"The ratio is often used as a biomarker of physiological stress in athletes during training, during athletic performance, and during recovery, and has been explored as a predictor of performance. At least among weight-lifters, the ratio tracks linearly with increases in training volume over the first year of traini... |
why can't you build really high rollercoasters? | The tallest structure in the world is only 829 meters tall. When you start building things that tall, you run into problems with how air currents shift around the structure. Since it's so big, it has a large surface area and a ton of mass and unless you dig down really deep, it will be top heavy and the wind will cause... | [
"The \"Plug and Play\" aspect of the coaster speeds construction of the coaster since track does not have to be completely manufactured on site. In addition, because of the speed of construction, the costs of building the coaster are lowered due to less man-hours spent on the construction. The riders benefit from a... |
how come the price of oil went from 100$ a barrel to 27$ and the oil price in my country went from 1,5€ per liter to 1,15€ per liter. | Suppose you want to make a grilled cheese sandwich. You go to the store and buy cheese (crude oil), bread (refining), and butter (taxes). If each of these cost $1, your sandwich costs $3 to make. Now suppose cheese is on sale for half price. The cost of your sandwich went down to $2.50, not $1.50 because the other ingr... | [
"The price of oil, or the oil price, generally refers to the spot price of a barrel of benchmark crude oil—a reference price for buyers and sellers of crude oil such as West Texas Intermediate (WTI), Brent ICE, Dubai Crude, OPEC Reference Basket, Tapis Crude, Bonny Light, Urals oil, Isthmus and Western Canadian Sel... |
why are 9mm bullets less dangerous than 7.62 or even 5.56 ones? shouldn’t they deal more damage with bigger size? | 9mm bullets are dangerous.
However they are a handgun round. They're less aerodynamic and have less power coming out of the barrel. They're not designed for long-distance flight.
7.62/.308 and 5.56/.223 are rifle rounds. They have more power out the barrel and are designed for long- distance, accurate engagement. | [
"BULLET::::- Stronger versions like the heavy machine gun, flame shot, shotgun, laser rifle, and rocket launcher are available. Each deals more damage than their normal counterpart, has a different appearance and a wider (or longer) area of impact. If the player happens to be fat while using these heavier weapons, ... |
why might the government shut down soon because of heathcare-related issues? what is going on exactly? | This question concerns one of the most frequently asked topics on ELI5, so it has been removed. Try the searchbar nextime please. | [
"Further work to bring the topic into the public domain appears in the 7 Families project. This charity-led campaign is providing seven people in the UK who have lost their income because of a serious or long-term illness, injury or disability with a tax-free income for one year. The campaign is documenting the eff... |
how is art restoration often not just creating a simulacrum or a "ship of theseus"? | You're correct that art restoration, over a long enough time, creates a "Ship of Theseus," (a new object that simulates the original, but has been made, little by little, of new parts until none of the original remains).
But what's important in art isn't necessarily that the exact oil paint (for example) that da Vinci... | [
"Restoration can be as simple as light cleaning to remove disfiguring dirt or grime, such as on the surface of a painting, or it may include near complete rebuilding or replacement, as might be the case with old automobiles or furniture. Often done in preparation for sale, or by a collector upon acquiring a new pie... |
why do baseballs thrown with little to no spin (aka "knuckleballs") have such erratic movement? | It's all about the seams. Don't listen to the idiot talking about gyroscopes, they are 100% wrong.
A 4 seam fastball has a backspin across all four seams, causing the seams to create lift, fairly evenly, and somewhat negate gravity. A curve ball has a forward spin, causing the seams to generate downward lift and drop... | [
"The various spins pitchers commonly employ—fastballs, curveballs, sliders, cutters—cause the ball to diverge from a \"normal\" trajectory. This is caused by the Magnus effect, which makes the ball move in the direction of its rotation. Batters learn these spins and their likely trajectories, but predominantly from... |
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