Subset (10)

eli5 · 25k rows

Split (1)

train · 25k rows

query stringlengths 20 300	positive listlengths 1 1	negative listlengths 1 1
If when an object (e.g. a Jet) flies at a speed faster than sound a sonic boom is produced, why is a comparable effect not present when an object travels faster than light (light in different materials can travel at different speeds)?	[ "There is a comparable effect for light. Çerenkov Radiation is EM radiation in the form of blue light that is emitted when a particle moves faster that the local speed of light. So basically, light slows down in a new medium like water for example, and particles from nuclear decay precossees can actually travel fa...	[ "Light is a form of electromagnet radiation. It has a frequency that's in a particular range which we can see, but there are lots of other frequencies we can't see. The idea that electromagnetic radiation can pass through things is probably not at all strange to you. For example: - Light can pass through air, water...
How is non-alcoholic wine, wine?	[ "Basically non-alcoholic wine is when you make wine the normal way but then remove the alcohol afterwards. > In fact, most beverages labeled non-alcoholic contain 0.5% ABV _URL_0_" ]	[ "I'm not entirely sure what you're asking, here. If it doesn't have a deity or supernatural power of some sort, it's not really a religion. But it's no secret that the morals and laws of religions are essentially the morals and laws of the times that those religions were shaped in." ]
Why does an accent come in randomly?	[ "One theory is its a linguistic empathy response. Or in other words you talk like the people around you to garner empathy. It can also make you easier to understand to those you are talking to. Ex take the word aluminum. In America it's alu-min-um but in Briton it's more like alu-mini-yum. Say it wrong and you get ...	[ "Your speaker wires are acting as an antenna and thus your speakers play what the wire pics up. You can better insulate your speaker wire to get rid of it, or you can try moving your wires around a bit." ]
Say a 1kg piece of steak takes 1 hour to cook in the oven, if you cut that piece of steak into 500 gram pieces will it take 30 minutes to cook?	[ "Most likely not; it should take less time. Cooking in an oven is an outside-in process, where heat is transferred from the air in the oven to the surface of the steak, and then it moves from the surface to the inside parts of the steak. So the time to raise the interior to a specific temperature is more appropriat...	[ "How big are the files you are talking about? You may have noticed that transfer speed always ramps up slowly. Therefore it will always be faster to transfer one 10gb file than a hundred 100mb files. This is because the file system needs to open a data stream of the file, read the data, write the data, close the ...
How can we hear things that are inside our brains when brains don't make noise and our ears are on the outside?	[ "Sound also travels through solids and liquids (bone, muscle and fluids) from within the body to the ear drums" ]	[ "Sound works like numbers. If I give you 3 apples and you give me 5 apples back, I can just subtract 3 from 5 to know that you added 2 apples to the pile. If I play a sound while you record a sound, I can just subtract what I played from what you recorded to find out what you said." ]
. Why does some media from the 60's and 70's look horribly grainy and other media crystal clear?	[ "Your blu-ray was probably a remastered version. The original physical film that the movie was recorded on is extremely high resolution so if they make the blu-ray from that, it's high quality. An older copy of the movie is low quality because you're watching it from a VHS tape, which is both low res and can degrad...	[ "Early spy satellites would take shots on film and then send the film back to earth in a pod and it would then be developed. The cameras on the Voyager craft were similar to TV cameras of the day and were in a way between modern digital cameras and film based cameras. The data they recorded was sent in a digital 8b...
When birds fly, do they know where they're going every time or do they just land wherever?	[ "I live near a long string of parks. Over decades I have watcher the behavior of Canadian geese in particular. Groups will do to the golf course or another pond on a regular schedule. They fly a direct route between these locations. They definitely know where they are going. I remember one terribly windy winter day...	[ "At the most basic level, instead of telling a computer what to do, you give it the tools to learn from what it has done. For example, imagine a tic-tac-toe game. Instead of telling it what to do, you give it the ability to remember games; and whether or not it won the game. then, when it has to make a move, it loo...
the uncertainty principle	[ "It's possible to know how fast something is or where it is. But never both at the same time." ]	[ "Because it would be immensely difficult. You're measuring the wavefunction of one proton and one electron in a hydrogen atom. In the uranium atom, the wavefunction is a combination of all the new electronic wavefunctions and have to account for all their interactions." ]
Why /r/The_Donald Posts are consistently dominating /r/all?	[ "The_Donald has a huge amount of active users, more than r/TIL, r/pics, r/funny and other default subreddits. There's simply a lot of people browsing it. The second reason is the culture of that subreddit is very, well, \"upvote happy\". Or 'high energy' as they would call it. In essence, they enjoy covering the ...	[ "each url (not including the sub directory) links to exactly one ip address (as determined by your dns server, different people using different dns, may be directed to different ips). this ip address determines the webserver which will serve the webpage. [server].[domain].[top level domain]/(optional)[sub director...
Is there a maximum or minimum frequency of light?	[ "No, there isn't. The frequency of a light wave is a frame-dependent quantity, and you can change the frame of reference to make the frequency arbitrarily low/high. Since all frames of reference are equally valid, there can be no lower or upper limit in frequency." ]	[ "> What part of my reasoning is wrong? The reasoning is not wrong, however you are assuming that each level has a 100% precise energy. In reality, each state has a [nonzero energy width](_URL_0_) to it. The width of the state is inversely proportional to the lifetime, so only states which never decay have infinit...
How were soldiers in those massive "Braveheart" type foot battles able to keep from killing each other if everyone generally looked the same?	[ "* soldiers would use some sort of uniform or standard * soldiers on the same side generally had the same style of equipment * soldiers on other sides tended to be more racially and linguistically distinct * soldiers did get killed by their own side in any number of ways" ]	[ "One thing to point out is the terrain. Iraq is in the populous parts of the country pretty flat, with a semi good road network across the country making it easy to move people around, and larger cities and towns to organize around. Afghanistan is some of the most inhospitable terrain on earth. With little nation...
During the period of westward expansion, were there any U.S. or European leaders arguing against the appropriation of the land or taking up the cause of indigenous peoples?	[ "In the 1832 Supreme Court case Worcester v. Georgia, Chief Justice John Marshall, in the majority opinion, ruled that the Cherokee nation was its own distinct community and not subject to the laws of a particular state. How, Andrew Jackson chose not to enforce that ruling, thus paving the way for the Trail of Tear...	[ "Is this a homework question? It says in our [rules](_URL_2_): Our users aren't here to do your homework for you, but they might be willing to help. Remember: AskHistorians helps those who help themselves. Don't just give us your essay/assignment topic and ask us for ideas. Do some research of your own, then come t...
With an infinte amount of money/resources would massive construction projects be possible in short amounts of time?	[ "Some processes may require time that cannot be overcome with money or manpower. Such as concrete setting. Therefore dependent processes become delayed." ]	[ "If you put enough traffic on a freeway, no mater how wide the freeway is, no one can get anywhere. the same thing applies to networks, where if you flood them with enough traffic, with fake cars that don't actually want to get anywhere, nothing can get where it wants to go." ]
What exactly is happening with gay marriage in the Supreme Court today and tomorrow?	[ "There are two cases in front of the supreme court this week to hear arguments. The first is a case around California's Prop. 8 ban on gay marriage. The second is at the federal level, the \"Defense of Marriage Act\", which dictates that the federal government will not recognize gay marriage, and also says that no ...	[ "> What Gould the Feds to to the state? The Federal government could deploy military troops to enforce the ruling, similar to the deployment of the National Guard in desegregating schools. If push comes to shove it will end at gunpoint, one way or the other." ]
Why are credit cards so popular in the USA ?	[ "There are some advantages to using them, even if you don't intend to carry a balance. 1.) A debit card is tied to your bank account. If your card has unauthorized usage, those funds are coming directly out of your bank account. Not so with your credit card. 2.) if there is unauthorized usage, you can dispute the ...	[ "Sugar tastes good. When faced with a choice between that which is smart and that which is pleasing, most people will spend their money on the latter. A business exists to sell people what they want to buy, not what some might feel they should buy." ]
Why does "fresh" outdoor air appear to wake you up?	[ "It's because of sensory adaptation. If we're honest about the situation then we realize that going INTO a casino or a smelly car is just as likely to grab out attention. Sensory adaptation is what happens whenever your brain is exposed to the same stimulus for an extended period of time. So if you're inside for an...	[ "Our brains didn't evolve with cars in mind. They evolved with, like, being hunted by a jaguar (or whatever) in mind. So your brain doesn't know what to do with a car. It thinks hey, we're sitting, our body's not really doing anything physical, there's very little activity or stimulus... this seems like a good time...
How do words become official words?	[ "There is no such thing. The dictionaries reflect words that people use. If people use a certain word and understand its meaning, then it is a ‘word.’ There’s no such thing as an ‘unofficial’ word. Some people might like to insist that slang words or dialects are not ‘real’ words. This is nonsense. Language changes...	[ "It doesn't. Scientific studies on neuro-linguistic programming have shown it to have no effect. _URL_0_" ]
If opposites attract, what keeps electrons from contacting protons (hydrogen nucleii)?	[ "They do, frequently, electrons in the 1s orbital often scatter off nuclei, but because electrons are actually quantum mechanical clouds of probability (orbitals), with a certain probability of being in one of a large variety of places they tend to leave. That said, if the protons are at the right energy level ther...	[ "I think people come to that interpretation due to Feynman diagrams since, in them, an antiparticle is pictorially represented as a line with an arrow going in the negative direction on the time axis. However, Feynman diagrams are in part just pictures to help one understand processes occurring and don't necessari...
Are there any naturally-occurring elements that are created solely by the decay products of other naturally-occurring elements, and not by any other process, e.g. fusion or supernovae?	[ "I'm sure they must also be produced by stellar processes, but any radon or radium that are around locally are the product of radioactive decay. The most stable isotopes of each have short half-lives (very short, in the case of radon), meaning that they would decay long before they get a chance to take part in plan...	[ "Organic chem student here. I think it's fairly unlikely that two sugar enantiomers would have the same taste. We taste things when they bind to taste receptors on our tongues, just as we smell things when they bind to odor receptors in our noses. For the same reason enantiomers often smell very different from each...
Why do songs on the radio sound higher pitched than songs played digitally or on CDs?	[ "The pitch is the same. It can be altered but is not. Your radio is not producing the bass portion as well as the other two. So you pay attention to the treble part more." ]	[ "Think of your vocal cords as if they were rubber bands. Brand new rubber bands (like when you are young) are tight and bounce right back after being stretched. Now think of an older rubber band (like when you are old), having being stretched over and over. It doesn't have the same elasticity it once had." ]
What causes the buzz associated with sleep deprivation?	[ "It's in large part thought to be associated with increases in central serotonin release, which results both in the promotion of wakefulness and the antidepressant effects noted by smarmyknowitall. Reference: [(PMID: 10884045)](_URL_1_). There is also evidence that the antidepressant effects of sleep deprivation a...	[ "Here’s my response from your first post that got removed. Not sure if you can see it anymore: Well, your body is always trying to maintain homeostasis, or a constant healthy state. When you regularly consume alcohol, your body learns this and is prepared to adapt its metabolism of the drug and other things to main...
Why do japanese cartoons change their opening/ending so often (10-20 episodes) compared to western cartoons, that keep the same opening for many seasons (south park, the Simpsons, family guy)?	[ "Funny you should mention South park. Although they keep the song, they change the scenes from season to season. Also the Simpsons, which has a different couch scene, billboard, and chalkboard every episode. The walking dead changes openings every season, sorta, because of the ... character changes. It all comes do...	[ "EP and LP are terms that originated with the technology of vinyl records. An LP is a 12\" vinyl record which when played at 33-1/3 rpm gave you ~22 minutes per side -- they were able to stretch that a little bit but not too much. A 'single' was a 7\" vinyl record with a bigger hole in the middle (it was developed ...
Dale Carnegie's How to Win Friends and Influence people	[ "It's a manual for salesmen that turns out to be good advice for all personal interactions." ]	[ "This is something I would also like to know as I listen to a lot of trade books in the car while travelling and have wondered if its ~~doing anything~~ actually planting the information into my head or I'm a just listening like a song." ]
How do muscle contractions make it possible for a person to exert more pressure on something than their own total body weight without lifting themselves into the air?	[ "Hey, mechanic here, I'm guessing you missed something. Engine hoists require almost no effort to work the lever and lift an engine. A small child should be able to pump the lever. Now there are pins that lock the lift arm in different positions, if it was locked when you tried it, then it will never move and you c...	[ "When you cut skin, depending on how sharp the blade is, yes you're causing cellular damage. If you take it down to the atomic level, your knife essentially acts like a lever and shoves the atoms apart until the interatomic forces are exceeded. With scissors, it's a bit different as you're shearing (hence the name...
Can you use renewable energy for planes?	[ "While [solar-poewred planes have been built](_URL_0_), the technology is still hugely inefficient and incapable of powering large commercial aircraft." ]	[ "Many airlines started out funded at least in part by governments. But airlines can be started by bunches of people pooling their money together. You will find that most companies cannot be bankrolled by one immensely wealthy investor, but is a group effort." ]
What's the significance of Iowa and the presidential race?	[ "Iowa is important because it is first. It weeds out the candidates that don't have a shot nation wide. Iowa is a small enough state that it's relatively cheap to campaign in and you can actually see many of the candidates if you really want to or know someone that did. Running lots of ads isn't going to always be ...	[ "Marketing. It makes the reader more easily relate to them. They aren't really a group of editors and publicitsts pushing the book, it's just that one person in a small town that wrote a story." ]
How can dawn dish soap save animals affected by an oil spill?	[ "Crude oil can kill animals in a few different ways besides just ingestion. When you have a bird that's covered in oil, the bird is less able to float on water or fly well, and is more susceptible to temperature fluctuations. Cleaning birds of this oil requires soap, not just water. You've probably heard of express...	[ "You mean the Animal Planet one? Hype and marketing. Then it became a euphemism for menstruation (I'll fill you in if you want, but it's gross sex stuff...) and took on a life of its own." ]
How exactly does muscle growth work?	[ "Your muscles are made from bundles of stringy cells that are capable of contracting and relaxing. Exercise and damage to the muscle from overuse will cause your body to adapt and build the muscle up more strongly than it was before (more bundles of cells for more pulling). Your body creates those new muscle cells...	[ "Easy enough: some taxes are, by law, directed toward a specific program rather than the general revenue. When that program has an excess amount of money, Congress borrows it for its ordinary spending, but promises to pay it back with interest when that program needs it. This how it is with works with the Social Se...
How was the general public made aware of the nuclear bomb, and how did they react?	[ "The general public had no idea that the atomic bomb was being developed until it was first used on Hiroshima. The Manhattan Project (as it was known) worked in total secrecy. While scientists had discussed the possibility of using nuclear power in some way, no information leaked out ahead of time, including the ex...	[ "Radio waves, just like we still do today. If you want an example, think about how television worked in the 1940's and 1950's. Take an image and transmit it via radio to a receiver." ]
Why are bumpers in cars made from plastic?	[ "The plastic portion you can see is actually a bumper cover. Underneath the plastic there is a strong steel bumper bolted to the frame of the car. The bumper cover is meant to be attractive, suitable for minor collisions and easy to replace. Plastic is a great material for all three of these requirements. Edit: Her...	[ "[Relevant](_URL_0_), not that I would recommend using children. Using spheres simply guarantees that when one ball hits the next, all that energy is delivered precisely on a line traversing all the balls. This ensures the maximum amount of energy is transferred to the ball at the opposing end. If we were to use ra...
Can you treat Osteomyelitis with Intraosseous Antibiotics?	[ "IO antibiotics and IV antibiotics are the same thing, except that in some cases IO access is better than IV access. The reason that IO is interesting is that it gives you access to the vasculature when you can't get an IV in; it doesn't give you access to any compartments that an IV wouldn't. And since IO access ...	[ "You are right. It is mostly just the advertising aimed at making you buy it. So go for generics. Do not pay extra for the advertising. Ibuprofen is the same drug whatever the brand name." ]
The differences between gangs and governments	[ "It's not. Your father is playing with words to make himself sound more profound. A gang does not require \"guns\" or \"violence\". \"Gang\" is just a word that means \"a group of people\", that is colloquially associated with low income individuals who band together to hurt people for their own betterment or econo...	[ "Gay marriage in on the state level and states having been having referendums to vote it into law or not. SOPA is on the federal level." ]
Why is the shape of the universe assumed to be a 3-manifold?	[ "Because [time doesn't have a Euclidean coupling to space dimensions](_URL_0_). Edit: thinking about this more, I may have misunderstood your question, so please feel free to correct me." ]	[ "Many world is an interpretation, and nothing more, which is to say that it is an aid to help uneasy researchers on the foundations of QM sleep at night. One does not need an interpretation of QM to explain physical phenomena, and in that sense, every interpretation of QM is as good as the next one, unless new inex...
What is the distinction between referring to a historical figure as an "Empire Builder" vs. a "Conqueror"?	[ "Well you're using entirely arbitrary terms that aren't even defined, so the distinction is pretty meaningless" ]	[ "Is this a homework question? It says in our [rules](_URL_2_): Our users aren't here to do your homework for you, but they might be willing to help. Remember: AskHistorians helps those who help themselves. Don't just give us your essay/assignment topic and ask us for ideas. Do some research of your own, then come t...
Why does your stomach sometimes rumble when you are hungry?	[ "Things inside the stomach are constantly shifting around and moving down the line toward the final stages of digestion. When your stomach is empty or closer to empty, all that movement of material sends out vibrations in the form of sound waves that reverberate more loudly because the acoustics of an empty belly a...	[ "To let others around us know we are in danger. This tells them that we need help. It also alerts those around us of a potentially dangerous situation that they should be careful around." ]
Trickle down economics and why it's so funny to American's	[ "The idea behind \"trickle down economics\" is that if you give wealthy people and corporations more money, then they will create more jobs and thus the entire society (even the poorest of the poor) will benefit. Some Americans believe it will work, and some don't. It is funny to some Americans because of how ridic...	[ "The \"rally round the flag effect.\" Anytime there is a crisis that clearly is not the president's fault, it is common for citizens to band together and support the decisions being made. _URL_0_" ]
Does cheese inherently cause constipation?	[ "Cheese is just a block of fat and protein, with (most importantly) no fiber. Enough cheese by itself can cause constipation, so eat responsibly." ]	[ "How much did you drink? My poop once spoke to me and then turned into white snakes" ]
Why our nose runs when we eat spicy food	[ "Your body is perceiving the spicy food as a threat and it is using mucus production to flush the offending material out of the system." ]	[ "One theory is that the head of the penis evolved it's shape to \"scoop\" out sperm. That way while attempting to procreate we remove the sperm of our competitors while depositing our own. Following ejaculation we become sensitive to stop us from continuing to thrust and scooping our own sperm out." ]
What’s happening to wine when it aerates? Why does it make the wine seem a little easier to drink? Does aeration cause it to go down in percentage of alcohol? Can alcohol expire?	[ "Wine can definitely expire, it's one way of getting vinegar. Somebody with more interest in wine can give a better explanation, but the aeration helps bring out the flavors. The amount of time you should have the wine out before consuming isn't going to have any significant effect on the amount of alcohol present....	[ "Yer not alone in askin', and kind strangers have explained: 1. [ELI5: Whistling ](_URL_6_) 1. [ELI5: How does whistling work? And how is it different from blowing? ](_URL_0_) 1. [ELI5: How does whistling work? (Wind/air pressure to sound with whistles, bottles, or lips.) ](_URL_4_) 1. [ELI5:How does whistling work...
Is there a finite number of combinations possible in the human genome? If so, how long would it take before we start "repeating" people?	[ "Crash course on combinatorics - even a few 'bits' can result in MANY combinations. For example, encode a genome in binary, 0011010101 or something like that (it's actually a higher base than 2, but just take base 2 for now). With just 10 bits, you'd have 2^10 = 1024 combinations. With a thousand bits, you'd have ...	[ "Protecting intellectual property was supposed to foster innovation. To encourage people to come up with new ideas, because new ideas would be profitable for a while (the term of the copyright). However, giving limitless copyright terms causes the opposite effect: Nobody innovates or comes up with new ideas, becaus...
How men became the dominating sex in almost every society?	[ "Throughout our history men have been in control because it was the men who were stronger. The strong control the weaker, whether that's weaker men or women in general. Throughout history women spent much of their time pregnant. Being pregnant came with the need to be looked after." ]	[ "\"Just about everyone here\" Where is \"here\" for you? It sounds like your question's premise is based on a small sample set based on personal observation. Before your question is addressed, you should be making sure the premise is valid..." ]
Why does the archetype of the brilliant general/conqueror who early on scores fantastic victories, but in the end fails miserably, repeat itself throughout history?	[ "Isn't it a bit of a selection bias? A general that fails in his early battles is not likely to continue his career, thus making it less likely that someone can fail at his early battles and then have a string of victories. And on the other hand, while there are generals that fit your pattern, there are plenty that...	[ "A lot of ceremonies follow the same basic series of events they've followed for years, decades, or longer. History is a big part of the military and some of the ceremonies, documents, etc haven't changed in some time." ]
How do armed forces work in multilingual countries?	[ "In canada we have a full french regiment. They are stationed outnor quebec and called the vent doos, the anglicized pronounciation of the royal 22nd regiment. The rest is open to bilingual members but English is only used. Day to day operations for the vent doos are in french while the other regiments are in Engl...	[ "Hi, I've approved the post, but just a note to you and potential respondents: this subreddit has a 20-year rule against discussing current events, so any answers will have to cut off at 1997. If you're looking for answers that can include 1998-2012, do consider x-posting elsewhere, eg. a foreign affairs sub like /...
Why are eggs used in the majority of baking goods?	[ "In addition to the binding ability of egg proteins, eggs are great emulsifying agents... meaning they are able to bring together oily substances and substances that dissolve in water or are water-based. Ever heard the phrase, \"oil and water don't mix\"? Well, in the presence of eggs, they do. Also, egg yolks br...	[ "This is a very common question. You can use search to find [all the other really good answers](_URL_0_ ). This is instant, and faster than ust typing in your question every time. It's a way of cheating elections. Read the others, and then ask a more specific question." ]
How is the molecular weight of an atom found?	[ "I don't know offhand how the canonical atomic weights were first measured. One very common technique today is to ionize atoms by bombarding them with free electrons so that they have a net charge. The charged atoms are accelerated with an electric field and then deflected by a magnetic field. By measuring the amou...	[ "I'm going to assume that you really meant to type CO, carbon monoxide, which is lighter than air." ]
A sunken German U-Boat was recently discovered was near the NC coast. Are archaeologists allowed to dive on wrecks like that to gather historical information? (MIC)	[ "One more question: Reading the following three paragraphs, I'm wondering if the U-boat was trying to surrender when they were sunk. Do any of you have any insight into that? Here are the paragraphs: > The submerged boat closed in anyway and fired four torpedoes, sinking the old Nicaraguan flagged freighter Bluef...	[ "As a follow up question, how are the farmers/owners of that land compensated today? Battlefields of WW1 are still claiming victims and damaging property with exploding ordinances. Wouldn't this not be covered under insurance as acts of war are pretty much never covered? Or is there a special fund or type of insur...
does the jolly roger pirate flag have a skull and swords or a skull and crossbones? what pirate flew it first and where'd it come from?	[ "I would suggest /u/davidAOP, answer... Wait, I mean, u/ETFox. Wait. Okay, fine.... Specifically the idea of the skull and crossbones is an old one that predates even the opening of the New World. It can be found on tomb markings as early as the late Middle Ages, and generally means simply \"death.\" The first lit...	[ "Though the previous rank was an important consideration, there was no automatic transfer of rank. This was almost irrelevant, as experienced officers were given promotions to higher ranks - the larger wartime army required more general officers, more colonels, etc., and so experienced officers were commissioned to...
What was religion like in Pre-Columbian America?	[ "Unfortunately, this isn't a subject area which I can talk specifically about, hence I felt making a comment would be uncouth, however, all the same, for the sake of other responders, I though it'd be useful to say that I think you'll have to be more specific here (for the sake of getting the response you want) . F...	[ "Just for clarity, what time periods are you inquiring about? The answer for the 1650s is very different than the answer for the 1760s" ]
Why is tomato juice so popular on planes?	[ "They theorize it may be because when you're on a plane your tastes shift slightly. This may make for tomato juice being more popular on flights. More details in this short newsweek article: _URL_0_" ]	[ "I know Air travel and contrail contribution to cloud clover definitely changes surface temperature in cities. In the 3 day stand down of (almost) all air traffic in the days following the 9/11 attacks, there were measurable decreases in surface temperature . I can only assume the effect would contribute in other m...
Why is the tensile strength of a single strand of steel wire inversely proportional to diameter?	[ "I would speculate this has to do with work-hardening effects along the surface of the wire during the drawing process. As the wire is forced through a die, you're going to get work hardening along the surface of the wire to a certain depth. As the wire gets thicker, this depth doesn't change, so the hardened porti...	[ "1) The Law of Segregation states what you already seem to know: you get one allele per trait from each parent (the \"segregation\" bit comes from the fact that your parents' chromosomes physically separate from one another when gametes are formed), and you may inherit these in any combination of dominant/recessive...
If deadly diseases were completely successful and killed everything, would they die out? And in that case what is the point of them being deadly, why is it worth risking to run out of the source of their lives?	[ "This is like asking \"why does a fire burn itself out - what's the point of using up all the fuel if it can't sustain itself?\"." ]	[ "Doing that is the only way to differentiate between the top students. If the test is easy, and 5 people get 100%, then the professor has no way of knowing what advanced topics those students are struggling with. Be making the test difficult enough that no one gets 100%, it becomes possible to rank the top studen...
Since light can be bent by gravity, could we blast a beam of light into space and watch it come back?	[ "There'd pretty much have to be a perfectly positioned black hole near the Earth for that to work (or a mirror, like we have on the moon)." ]	[ "Grab a tennis ball and a lamp. Turn off every other light in the room. Hold up the tennis ball. Half is lit, half is dark. If you are looking from the side (you can see the lamp and the ball) you can see some of the dark side of the ball. The ONLY way to see nothing but lit ball is to have the lamp directly behin...
How come I'm unaffected by seeing people getting hurt, but I start crying if a dog gets hurt?	[ "This is because you recognize the Universal Truth -- dogs are better than humans in every possible way." ]	[ "I don't think you are going to get a valid answer. Music in and of itself is a confusing scientific phenomena. Our attachment to it is a strange byproduct of various cortical functions. We don't really understand why it exists (though there are many theories, none with anything close to proof). The most likely exp...
Is feminism about equal rights or women's rights?	[ "I think it really depends. Honestly I think there are some people in the world so pissed off that they're happy to blame men for all their ills - that's their right, and they can crack on with it. Old school feminism however is a different matter; it's about equality. It's about the freedom to choose which parent ...	[ "Reddit's structure leads to a lot of echo chambers where anonymous idiots on the internet post horrible shit and then get upvoted to the moon by their fellow misogynists/racists/pedophiles. SRS reposts that stuff to name and shame." ]
When did a method for using longitude become standard practice for naval navigation? How was this method propagated across ships, navies, merchants, and countries?	[ "Not to discourage further answers, but I wrote about \"the discovery of the longitude\" here before: _URL_0_?" ]	[ "When you say nutritional value do you mean, when did we start putting on those labels and knowing what everything is in there or how when did we understand you can't just live off carbs? and things like that?" ]
If we can swap our Sun with a black hole of equal mass planets orbits would remain the same, but how big would this black hole be?	[ "The event horizon of such a black hole will have an area of just about 110 km^(2). If you had a sphere with this surface area that wasn't so massive—say a strangely round asteroid—it would be about 6 km across. A lot of sources will quote this as the diameter of a black hole (usually by referencing the \"[Schwar...	[ "If you ignore the rotation of the Earth and the possibility that something might be in your way on the fall down, the force of gravity inside a spherically-symmetric ball goes like F = -kr, where k is some constant and r is your distance from the center of the Earth. If you've taken a physics course,...
Does liquid neon have the same conductive properties as gaseous neon?	[ "neon conducts electricity only when you ionize the atoms, that is remove some of the electrons. The gas itself won't conduct electricity, just like how normal air doesn't conduct electricity but when there's a large enough electric field you can get lightning. Its the same basic principle. Basically you have to pu...	[ "An uncooled core will heat up until (a) the environment can transport away all the heat generated or (b) the core material evaporates. The latter is obviously not what you want. A big tungsten container is not a good heat conductor - the interior would heat up until the tungsten melts and the block disintegrates. ...
Did Greeks and Romans ride horses in battle?	[ "The Greeks did as well, during the Battle of Delium for example, the Boeotian league fielded over 1000 cavalrymen. While the mainstray of their forces were infantry, they did use cavalry as auxiliaries. The Macedonians of Philip and Alexander the Great used their heavy companion cavalry to great effect as well." ]	[ "If you're new to the thread, please don't post the Mythbusters episode again. Mythbusters is entertaining but it's not history (or more specifically, it's not historical proof of anything.) The short answer is no, not that we know of. /u/davidaop, our pirate expert, and I have both answered [questions about th...
Is there any way to compare tonnes per square meter and g-force?	[ "Convert both to a force (N) to compare. Start by determining the area (will be the cross sectional area) of the nose piece that is subjected to 12T/m^2, multiply the 2 together, convert tonnes to N. Convert your g's to m/s^2 and compute F by F=ma. Then compare" ]	[ "\"We\" aren't as in there is no government involved. Its a private effort that frankly won't actually get there so its a publicity stunt. Assuming they actually send people who says they are doomed? This isnt a send some people to Mars and watch them die a year later thing. If they manage to send people there woul...
How do snails get their shells without being near the ocean?	[ "Shells don't simply come from the sea, they're grown by secreting their material. Snails grow their own shells." ]	[ "Their genes are unique to them. It uses peices from both parents but they form into their own code and blueprint." ]
how a drug goes from needing a prescription to being able to buy it without a prescription	[ "Like you're five? Because the grownups who make the drug (Sanofi) showed the grownups who regulate the drug (the Food and Drug Administration) that the drug is safe enough to take without needing the advice from a doctor. The drug itself does the same thing only now you don't need a prescription from the doctor. P...	[ "Most neighborhoods built after the 1950s, ie subdivisions in the suburbs, are built all at once. Meaning they will all be built within a year of each other and use 1-5 building plans. Homes built in cities or on privately owned lots outside the city limits that are not a part of a subdivision are built as the owne...
fasting before blood test . Shouldn't you eat to keep it more realistic?	[ "It depends on what they are testing for. In some cases you need to fast, in some cases it doesn't matter, and in some cases you are supposed to eat a lot before. If they are testing for levels of a vitamin for example, they don't want to have to account for you eating something heavy in that vitamin right before. ...	[ "The point of a Fermi estimation isn't to get the right answer to a problem - it is to get in the _ballpark_ of the right answer so you can get a sense of scale. You make estimations and general guesses about what the inputs are - the goal is to be in the general order of magnitude of the answer. For example, lets ...
What's at the center of the Milky Way?	[ "At the center of the Milky Way Galaxy, like almost every Galaxy, is a supermassive black hole. I believe it has a gravitational pull about 4 million times stronger than our Sun. When we look at it now, it is feeding on a large dust cloud." ]	[ "When milk chocolate is hot enough it becomes a thick flowing liquid. The manufacturer then pumps it with bubbles of air and whisks it to keep the bubbles distributed. afterwards it is poured into a mold and quickly cooled to harden the chocolate. finally the bar receives an extra coating to give it a clean exterio...
Is there anything in space below/above us?	[ "There isn't much in the planetary range of our solar system above or below us. Because of the way impacts of matter happen in the giant cloud that forms solar systems, it will eventually turn into a tight plane that's perpendicular to the axis of rotation of the solar system. Happens with galaxies eventually too."...	[ "It really depends on what you mean by \"see.\" If you mean see with the unaided eye, then no we cannot. If you mean unambiguously detect and visualize, then we can. _URL_0_" ]
If dinosaurs and other large animals have lived for millions of years why didn't sentient beings develop earlier?	[ "Dinosaurs were sentient. If you mean sapient, who knows? Human intelligence is an anomaly. But intelligence may not be the best evolutionary strategy. Humans were possibly even smarter 50,000 years ago (anatomically modern humans before the agricultural age had bigger brains), yet did not come to truly dominate t...	[ "Brains easily perform many, many tasks hat are difficult for computer. Take that we know brains are optimized for pattern-finding. Consider intelligent life forms have to interact with a real 3-world and real time. Which means they can check their expectations. Testings a supposition is as simple as rotating an o...
I just read an old article today about a 480 lb woman who died after a 6 hour surgery to remove her from her couch. She was physically fused to the couch after not moving for 6 years. How is this actually possible?	[ "Surgeon here. The following description may be NSFW. She did not become fused with the couch. Like others have pointed out, this is impossible. But imagine her entire backside is an open wound, with exposed muscle and fat and bone, and the entire thing is slimy and full of pus. This can make it very hard to tell w...	[ "Horses and other large four-legged animals have issues with laying down for long periods of time. Sure, you will see them laying down here and there, but they can't sustain it for long periods. They end up with blood flow issues to large parts of their bodies. It also puts pressure on their internal organs. A brok...
why European rugby players suffer less concussions than a NFL player but where no protection whatsoever?	[ "If you dont wear a helment. You dont lead with your head. You use the shoulder or anything that isnt your head.. Wear a helmet.. And then you start to feel like hitting head first might be a workable idea. If boxers didnt wear gloves, There would be a lot less brain trauma too.. Because it would actually hurt to ...	[ "It goes back to the old idea of morality that really became popular in the United States, and the fact that many people grew up with religious parents who didn't like to discuss sex and so when they grow up they don't like to discuss sex and so on . Its a cultural thing, in some countries it is taboo to discuss vi...
How do music streaming services pay artists? How much are artists paid? What is payment based on (number of plays, etc)?	[ "They know what people are playing and they compile costs based on play count and cut checks to the labels on a pre-determined basis. Sometimes rates are different based on quantity and such. It all differs, but most services pay standard rates that are set by law. Sometimes companies pay different rates depending ...	[ "Hey, I can answer this! So here's how it works: internally, the game has each question and answer stored in some kind of [tree structure](_URL_0_). Question nodes have children, answer nodes do not. That's why the game starts off with really generic questions, and gets more specific as the game goes on. The game j...
why is it that the more intelligent you are the more likely you are to be depressed?	[ "_URL_0_ _URL_2_ Other threads say that higher IQ is not correlated with depression. You might find this gene interesting: _URL_1_ People with the Met allele have stronger emotional responses (though not necessarily positive/negative), and perform better on think-y stuff." ]	[ "It's easier for us to create heat than to remove it. Furnaces for heating have been around forever but air conditioners are expensive and still catching on. Therefore, for centuries the most productive places have been cold-but-not-too-cold places because they can get work done all day, year round, whereas in warm...
Why do restaurants leave tails on shrimp/prawns in pasta or jambalaya dishes?	[ "Labour is expensive. P/D shrimp (peel and deveined) are more expensive than unpeeled. Paying your cooks to pinch tails is also expensive,a nd there's far too much work to be done to waste time doing it. All those costs factor into the cost of the dish (usually about 17-20% of the cost of your dish is labour cost)....	[ "> Will a good author tell us this information in the ~~foreword~~ preface? Two of my favourite authors, Conn Iggulden and Bernard Cornwell, both write on the interpolations and intentional deviations from history and reasons for them in the afterword and give non-fiction book recommendations on the subject. I ...
How does a war neutrality work? For example, why didn't Germany just invade Switzerland and ignore its neutrality?	[ "It had little to do with Swiss neutrality. Switzerland is a castle of a country. It's set in very mountainous area with only a few strategic roads and railways that offer quick movement across it. These all have bridges and other expanses that can easily be blown to slow down an invading force and cause a high num...	[ "Because while N. Korea might talk a mean game, they're basically harmless. Much of what you see in terms of N. Korea is purely spectacle make to build this image that they are this badass. In reality, N. Korea probably wouldn't be able to take over a Walmart in Texas. They're basically like a child who's threateni...
What is pleasurable about anal for both parties, there seems to be very few pros to the hole thing.	[ "The pro's are once you know what you are doing, giving or receiving, it feels really amazing. The con's are that until you know what you are doing, there is the potential for messiness and pain, and there is a learning curve with it. But as Rocco says... Don't worry, it's only the smellz." ]	[ "ELI5: have you been browsing my web history?!? There are certain people who enjoy pie. They form an online community of pie lovers and pie makers. The pie makers get rated on their pies, from appearance to quality. If a pie maker hers a bad reputation, pie lovers will avoid in the future. Sometimes, a new pie make...
Why is the default tattoo color that awful dull blue?	[ "It's just black ink that has faded. Some inks will fade and turn blue more than others, while some stay quite black. It all depends on the ink manufacturer. It also depends on how the person takes care of their ink. Exposure to the sun will fade tattoos and give black ink that dull blue appearance." ]	[ "Graphic designer here. It's for the printer sake. So he can measure that every individual color is printing correctly. You might also find a small cross hair next to the colors, that is to make sure the colors are lined up with each other. As every color is printed in it's own printing press, a cross hair of every...
Why did Japanese war criminals receive harsher treatment than their European counterparts?	[ "Although most attention to this day focuses on the high trials of top leaders (Class-A war criminals who had committed \"crimes against peace\" by starting wars), there were numerous smaller war crimes tribunals that tried and convicted Class-B and Class-C war criminals (soldiers directly responsible for atrocitie...	[ "I am by no means an expert on this topic, but I can point you towards a very good book I read a few years ago. [Arc of Justice by Kevin Boyle](_URL_0_) discusses the trial of [Ossian Sweet](_URL_1_), an African-American physician who killed a white man in self-defense in 1925 Detroit. The man was part of a white m...
What is the difference between a democrat and s republican?	[ "The ELI5 argument used to be Democrats use government to benefit society. Republicans remove government to benefit society. That's far too simple, because neither party is small-government. It's just about where the money in government goes and what policies they believe government should be involved in. Example:...	[ "Could you be more specific? This is an extremely broad question that would take forty hours and several textbooks to properly explain." ]
Scientists grow beating heart tissue from plants	[ "Scientists grow bigger by beating up the heart tissue from innocent plants?" ]	[ "They reason they rank so high on the power list is their ability to finance essentially any project out there... as well as they have an extreme amount of connections. If they so wanted they could fund the massively expensive project of integrating seaweed into animal feed and cut all greenhouse gas emissions from...
If the Universe were to end in a 'Big Crunch' at this exact moment, what would happen?	[ "Well, bear in mind three things: First, there is no evidence to suggest that a \"Big Crunch\" can ever happen, and evidence telling us it can't. Second, a \"Big Crunch\" isn't an event but rather a process that would play out over about 400,000 years, after (if we started at the present moment) about 10 billion ...	[ "You get the full year's worth of radiation. From an outside point of view, we see that time is dilated and the astronaut is moving very slowly inside their spaceship. But we see the spaceship take a full year to reach its destination, and gets hit by all this radiation along the way. From the astronaut's point of ...
I don't have a dishwasher. If I just rinse my plates and silverware without using soap, what negative consequences am I exposing myself to?	[ "Realistically, not using soap is probably only going to outright harm you if you don't get all the oil of a dish (hard without surfactants) and it goes rancid. Otherwise food is easily scrubbed off of dishes, and harmful bacteria are unlikely to even be on the plates to begin with unless you used them for raw meat...	[ "You need to find out more specifically what is going on at the plant. If it's a refinery, and only a refinery, then they're probably using borax and soda ash. Cyanide is used in the smelting process, which extracts the gold from the ore and produces something called a doré bar. That's a bar of low-purity gol...
If most of the world starts using clean energy sources, would all the excess carbon dioxide in the atmosphere "go away"? If so, how long would it take?	[ "I think best case is a couple of centuries, IF we simply blipped out of existence. Worst case is we've already knocked over some indeterminate domino in the complex system of our planetary atmosphere and a combination of ocean acidification, species loss and atmospheric composition results in a positive feedback l...	[ "What type of lightbulb do you have? I'll assume it's a [compact fluorescent bulb](_URL_0_) (CFL). The way these work is by sending an electric current through a gas inside the lamp to excite electrons in the gas. The electrons then tend to go to a lower energy state and emit photons, which are not visible. To make...
How does a magnifying lens concentrate heat from sunlight along with the light, and do so without getting hot itself?	[ "Lenses don't concentrate heat, they only concentrate light. The effect you're noticing is that the light gets converted to heat when it strikes a material." ]	[ "It's a consequence of general relativity. The two fundamental principles of GTOR are: > 1. Matter and energy curve space time. They shape the geometry of space time > 2. Objects move in the straights possible paths through this space time. Because space time is curved those lines are not straight. So this mean...
What purpose do silent letters in words serve?	[ "Silent letters are often remnants from older versions of the language. How we pronounce letters and words change over time. Sometimes certain sounds require specific letter combinations that modify each other but over time the modified usage becomes the dominant sound and so the modifying letters effectively becom...	[ "Pharmacist here: First thing we were taught about OTC treatments of cough were that you \"never suppress a productive cough.\" If the patient is clearing their mucus with their cough then it is productive and is making them better and we don't need to suppress it. That being said, there are many times when a coug...
Why are army/navy uniforms pixelated?	[ "The point of camo, in general, is to break up the form of whatever is covered in camo. It's easy to spot a tank, artillery, or a soldier by their outline alone. Camo, by using strange shapes, and various shades of color, makes it hard to find the form underneath. \"Blending in\" is secondary to breaking up the for...	[ "Thank you for your submission! Unfortunately, your submission has been removed for the following reason(s): You can find the basic answer with a google / wiki search. Please start there and come back with a more specific question. If you disagree with this decision, please send a [message to the moderators.](_URL...
the phrase "head over heals"	[ "The better translation of the term would be down with the head over with the heels, it's a description of a cartwheel, or the description of the feeling of up being down and down being up, etc." ]	[ "One bird in the hand (one you have already caught) is better than two in the bush (that you haven't caught yet). It is better to have one of something than the remote potential for getting two of them." ]
If congress has such low approval ratings, how do they keep getting re-elected?	[ "It's a matter of who is approving of which congressmen. If I, as a resident of Massachusetts, express great approval for my congressmen while simultaneously considering the rest of the congressmen to be terrible people, then my view of Congress, as a whole, will be overwhelmingly negative (eg for the Senate, I giv...	[ "They don't. It's a marketing ~~lie~~ gimmick. I used to work for a company that did a similar thing by mail. New customers were supposed to sign up by a certain time for special rates but as a specific matter of policy we'd give those rates to anyone who mailed back the special offer." ]
From Lion-food to State religion: How did christianity take over the Roman Empire? Was Emperor Constantine really that pivotal, or just the result of a process?	[ "FAQ; fantastic responses on [the general how/why here](_URL_1_) and specifically on the impact of [Constantine’s conversion here](_URL_0_) both by u/talondearg. There’s also “the rise of Christianity” by Rodney stark, although it’s a bit dated and disputed now. Pretty sure talon would have an opinion on it; and t...	[ "hi! additional input is welcome, but FYI, you may be interested in a few similar posts * [How did China come to be 90% Han Chinese?](_URL_3_) * [Why is such a high proportion of China Han? How has ethnicity developed in China over its history?](_URL_0_) * [How did the Han come to dominate China? To what extent was...
Has there been an example of two species actively hunting each other for consumption?	[ "there are plenty of examples where 1 species will hunt the young of an animal who's adult form hunts it in turn, birds of prey and snakes are a good example. you can also find cases of predators eating each other, but this is opportunism more than anything. you won't find an example of 2 animals who's adult forms ...	[ "When you're describing (genetic differentiation due to geographic separation) is known to evolutionary biologists as [allopatric speciation](_URL_0_). The answer is that it depends on the [evolutionary pressures](_URL_2_) exerted on the populations. [Punctuated equilibrium](_URL_1_) says that populations tend to ...
The Asteroid belt? Seeing inconsistencies.	[ "The depiction in Cosmos was wrong. The asteroid belt is very sparse." ]	[ "If you are looking for anything honest or science based in AiG, you will always be disappointed. For a good ripping of many lies and bs from AiG, I highly recommend _URL_2_ http://www._URL_2_/indexcc/list.html Try the section in the CC100 area for what you are talking about, but if you are honestly answered in fac...
How does a virus such a Ebola stay unheard of for so long and then have massive outbreaks? Are there still a few cases between outbreaks? Or is it truly non-existent in humans in the time between outbreaks?	[ "It's actually been around for a very long time, yet it's remained mainly in parts of Africa. Which means that unless its on Facebook, nobody here in America really cares for more than a week or two. But of course once it reaches America we actually care about it when media says its become a massive outbreak" ]	[ "Whenever you hear that something kills cancer in research / in a petri dish... just remember that a gun kills cancer in a petri dish, too. Often times the most promising ground-breaking research doesn't pan out farther down the line when they start trying to apply it to full grown humans. Maybe it breaks down in ...
Who was the person responsible for naming our planet "Earth", Why?	[ "There wasn't so much a person as just a group. The word earth evolved from the german word erda, which was used to describe the ground/dirt. In the middle ages people began using it to describe the globe by saying the earth. Now it is Earth." ]	[ "This is a bit like asking who decided what is polite and what is kind and what is mean - they are bound to culture, context and they ebb and flow with social norms. While we can talk about how and why words get put on lists that the MPAA uses in ratings, or that are OK or not OK on broadcast televition, it's nearl...
Advice for book on history's great leaders for middle school?	[ "I'd be careful given that middle schoolers will have very little context for the people you're trying to introduce. It's hard to truly understand why, say Roosevelt is a leader if you don't understand WWII or even really know what it was. If I was trying to teach a course on leadership I'd focus on practical aspe...	[ "I really liked Ron Chernow's \"Washington: A Life\". _URL_0_ ***** McCullough's Truman bio is awesome, BTW. I don't buy many books, preferring to read them for free from the library, but when I finished reading it, I went right out and bought a copy, just so I could have it on my shelf." ]
What happens when a cop pulls over a lawyer?	[ "Cop here: Nothing. Lawyers don't have any legal authority over police. The traffic stop would continue as normal. Police only need reasonable suspicion to pull over a car/detain someone, and probable cause to charge (arrest/cite/etc) them. A lawyers job comes into play in the courtroom." ]	[ "There are marks along the highway at measured intervals. A plane flies overhead, timing cars as they pass these marks. They radio to the cruiser on the ground a description of the car, who then stops them and writes the ticket." ]
How can wildlife drink from streams and water holes safely, but humans have to purify the water?	[ "I always find it fascinating that people think animals live with the same relative safety and health as humans. Animals get sick from water born diseases just like humans would, and they die, silently and without witness, and the world keeps turning." ]	[ "Most people copy ideas. If the tribe A comes up with a good idea, then tribe B next door will copy it. Or tribe A's good idea may make it powerful enough to conquer tribe B and force them to adopt their idea. Isolated communities may not be exposed to outsiders' ideas (like modern technology) so they don't copy th...
How valid is the claim that the Soviet Unions invasion of Japan in 1945 was the main cause of their surrender, and that the Atomic Bomb really wasn't necessary?	[ "This question gets asked very frequently and so we have quite a reserve of answers at the ready. [This thread](_URL_1_) contains a lot of information, as does the post by u/restricteddata in [this thread](_URL_0_). There are also other replies in that thread that are highly rated although that is the one I found ...	[ "The Japanese used nengo (年号), eras declared by the imperial court. They didn't have a set length and a new era could be declared for any of a number of reasons: a new Emperor taking the throne, a natural disaster, astrology, etc. The longest nengo lasted for thirty-five years, but the majority were less than a...
How and why do sports teams that haven't won their championships in many years continue to be funded?	[ "Take the extreme example: The Cubs ain't been to a World Series in almost 80 years, but they have a \"no bullshit ballpark\" located in an upscale neighborhood in a fairly populous city. In addition to that, Wrigley, the Cubs home field, is a piece of history to a baseball fan. Then take the Royals, who are an ex...	[ "They get it from not paying writers, actors, big camera crews, fancy sets, car chases, and explosions. A successful show like NCIS or The Big Bang Theory is paying ~~close to a million~~ millions of dollars an episode in actor salaries alone. A game show, on the other hand, finds some washed up comic and a de...
Did the IRS unfairly target certain groups or was this normal behavior?	[ "The IRS has admitted to unfairly targeting groups during the 2012 election, based solely on the fact that their requests for tax-exemption contained the words \"Tea Party\" or \"Patriot\" in the name. The initial revelation on Thursday claimed that this was solely an activity of \"lower-level\" employees in Cincin...	[ "There is a lot of discussion exactly how accurate that is. But that is nothing new, phone polls always has some demographic skew...people who were home a lot, people who answered their phones, people who didn't just hang up, etc. Many poll have adjustment factors. They ask for various demographic information, then...
Why is nobody worried that if we DO build an off-earth colony, the removal of matter from earth would change it's orbit/gravity?	[ "The Earth is really big (5,974,000,000,000,000,000,000,000 kg), so you need to take away a lot of stuff before people will notice." ]	[ "* it isn't very big, and would have to spin really, really fast to simulate 1g * spinning makes it hard to dock with * part of the point is to do experiments in a weightless environment." ]
We often tell the stories of the heroic actions of the German and Italians resistance while discussing World War 2. Were their any comparable movements or organizations in Japan? What forms did Resistance by Japanese people against the Japanese Government take, if it happened at all?	[ "Tangential question: do we in fact often tell stories of heroic actions of resistance within Germany and Italy? I've only seen one or two films about German resistance, and none about Italian resistance. What are some good examples?" ]	[ "How do we continue to slowly get smaller and smaller architecture in processors? I guess I am trying to understand what limits the shrinking of architexture. Essentially, why cant architexture rapidly decrease in size faster than Moores law predicted? Sorry, if this is a super complicated answer, I just always hav...
If a star emits very high radiation, higher than visible light, would it literally be invisible to the naked eye?	[ "As an object heats up, the peak of its EM radiation shifts to shorter wave lengths (infrared to red to blue to ultraviolet). But a hotter body will give off more radiation at all wavelengths than a cooler one. So the peak shifts, which is why there are yellow stars and white stars and blue stars, but no matt...	[ "As far as we know, there are only a few different quarks and a finite way of arranging them into baryons like protons and neutrons that could form nuclei. Protons and neutrons are the only baryons we know of that exist for more than a tiny fraction of a second. The fact that we see spectra around us in the univers...
How is rabies "controlled" in the wild? Why doesn't it just destroy large populations of wild mammals?	[ "Diseases are self-limiting. If they infected and killed everyone in a population, there would be nothing left to infect, and the disease itself would die out. Diseases \"want\" to be spread (as much as a non-thinking entity can want), and so they take measures to be highly infectious but as low lethality as possib...	[ "A typical bank collapse works like this: Banks lend out more money than they keep on reserve. For example, in the US, if you deposit $100 in a bank, $10 must be kept on reserve, while the other $90 can be loaned out. Once the loan is paid, the bank has effectively created the $90 that it loaned out, because it did...
Why do women's menstrual cycles sync up after a while when living together?	[ "They don't, it's a popular misinform. Am a woman, get periods and have had many female roommates over the years" ]	[ "It has to do with relative position in the three orbits. Have a look at [this diagram](_URL_0_). Earth is in blue, Venus in green, and Jupiter in orange. Venus appears to pass in front of Jupiter, despite being closer to the sun than we are." ]

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