Split (3)

train · 273k rows

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The answer to the math problem about the game show where there's three doors with either goats or a car behind them. (Variable change)	[ "This is called the Monty Hall problem, and [it's a favorite of this subreddit](_URL_0_).\n\nA key element to the problem is that Monty (the show host) knows where the car is and deliberately reveals a goat, which he's always able to do no matter which door you chose first. By doing so, he's giving you some inform...
How do speed detectors work?	[ "There are multiple different types of speed detectors. The three common ones are Radar, LIDAR and cameras.\n\nRadar works by sending out radio waves at fixed intervals that hit a car, and the difference in time taken to get to the car and back can calculate the speed of the car. It also takes advantage of somethin...
Why more recently than ever do webpages refresh and not actually go back when you hit the back button?	[ "It is more and more common mispractice to include a 0 second redirect in a site, which as soon as you load a page, redirects you to a slightly different page they actually want you to see. So far, this isn't a bad thing, it helps site design. The problem is, if you hit the back button on most browsers, it will t...
What Would Happen if the US stopped printing bills altogether?	[ "Existing bills would slowly degrade to shit as they are used.\n\nPrinting more money isn't just the government covering its ass for the amount of spending they do (though it is partially). They do also take up old, tattered bills from banks and replace them with fresh, clean ones. You do in the end have to print m...
Why do cigarette companies like Marlboro don't make cigarettes healthier? And wouldn't it be better profitwise since costumers live longer?	[ "I'm not an expert by any means, but maybe I can help a little here.\nTobacco is inherently unhealthy. People aren't fond of blanket statements, but it's true. Marlboro isn't out there slathering tobacco leaves with tar before rolling them up; tar is found naturally in tobacco. Also nicotine is terrible for your va...
How is bubble wrap made?	[ "well i would expect they mold a plastic with bubble, then attach another plastic layer on top of it.\n_URL_0_\n\n\n\nyeah, they just roll two peaces of plastic together. one has the bubbles on the roller." ]
The fundamental theory of algebra	[ "Every non-linear complex polynomial factors. For example, if you try to factor x^2 + 1 you cannot do it using only real numbers, but if you use complex numbers you get (x + i)(x - i). The fundamental theorem of algebra says you can always factor when you use complex numbers." ]
Why do airline pilots print off large piles of paper on a dot matrix printer at the gate?	[ "Airline pilot here. TLDR - this is the simple way to produce documents that have to be signed and then copies go to various different places.\n\nOften when we get to the gate we collect the flight plan, weather charts and briefing information. This is mostly laser printed and is a backup to the same content on our...
How much of a person's personality is shaped by environment and how much is purely influenced by genetics?	[ "TL;DR: It depends. \n\nEvery person is different. A person who has more traumatic experiences is obviously going to be affected by the environment more than a person who didn't. \n\nThat said, some people have genetic traits that make dealing with stressful situations easier, so they're affected less than others...
When a baby is born addicted to opiates because of the mother, what is the effect on the baby? How is it treated?	[ "Injections of morphine. A friend of mine had family friends that looked after an addicted baby and they had to give it injections of morphine once every 4 hours to begin with. The dosage is slowly tapered off. This is mostly because opiate withdrawal is only deadly to babies.", "Foster parents here who specializ...
If I own a great deal of stock shares in a company, does my selling them all at once have any economic impact on that company?	[ "Yes, if you own a large amount of a company and then try to sell all of your shares at once it will most likely cause the price to decline significantly. It's basic supply and demand, when you sell your shares you are increasing the supply and not changing the demand so the price will go down.", "It reduces thei...
What exactly is the Commonwealth? What purpose does the association have?	[ "It's basically the continuation/what's left of the British Empire. It's more of a mutual relationship/organization now, rather than the British controlling everyone, and lots of countries have opted out. But just about everyone in it used to be owned by the British and probably speaks English as a first or second ...
Why is the atom considered to be the smallest unit of matter if there are things smaller such as quarks?	[ "Because it's not a type of matter until it's an atom. You can't build a table out of leptons. You don't have a hydrogen quark, or a gold electron. We call things smaller than atoms particles - building pieces of matter.\n\nThat said, that's a bit of a revisionist narrative. When we named the atom we didn't kn...
why I go to bed after eating a good meal and wake up with a growling stomach, but when I go to bed after having not eaten I wake up not feeling hunger.	[ "If hunger is a conscious experience, it might be because your consciousness only notices the difference between 'just a minute ago' (right before you fell asleep), because you weren't conscious during your sleep.\n\nSo that, by contrast, it seems you are getting a lot hungrier in a small amount of time.\n\nJust a ...
WHERE DO BIRDS GO AT NIGHT	[ "They go back to their little birdy husbands,\n\nTheir little birdy wives.\n\nTheir little birdy children.\n\nTheir little birdy lives.\n\nNestled close together,\n\nThey sleep beneath the starry skies.", "Depends on the bird. Some go sleep in their nests; others come out and hunt.\n\n > What about migrating flo...
Why do people wake up when they are about to die in a dream?	[ "I don't wake up.\n\nThroughout my life I've always had a few reoccurring nightmares that even when in them I know how it's going to go some how. \n\nFor whatever reason in one of them I die and I don't wake up, it just carries on. \n\n---\n\nEdit.\n\nWow, I never expected so many replies! Nice to know I'm not the ...
What causes us to randomly stare off into space?	[ "Look up the word for this , called \"daydreaming\"", "Human curiosity? We can't help but look up and think \"What's out there? Who's looking back at me?\" That's that feeling of 'fazing out'? That's how it feels for me at least :p", "Well, if your eyes are open but you're not focusing on anything, you really h...
why does a video game character always look at his hands	[ "Because, in reality, when something like an explosion happens, you normally check yourself for damage if you are nearby. You block your face with your arms and hands and then it is natural instinct to check yourself for harm or shrapnel, so you check your hands because they are typically the only part of your body...
Why do I always have to pee right after I fap?	[ "It's natures way of cleaning the pipes.\n\nEDIT: I think it's the prostate gland who gives the \"order\"", "Your urethra runs over your prostate and your bladder sits on top of them both. \n\nWhen you fap you stimulate your prostate and urethra and in turn your bladder. \n\nBad news guys. As we get older if you ...
What does single payer health care mean? How is it different from any other kind of health care?	[ "I'm going to explain assuming you're referring to the US healthcare system...\n\nIn our system, as you probably know, employers offer their employees healthcare insurance, through a company like Aetna, Blue Cross, Cigna, Humana, or dozens of others of varying sizes. These organizations are the payer - when you go...
What happened to the Occupy movement? Are people still "occupying"?	[ "The Occupy Wall Street movement itself is no longer taking place. However, many would point to the strong support of people like Trump and Sanders instead of the normal institutional candidates as indicators that the unrest which caused that movement is still alive and well. Income inequality is still an issue t...
White Male Privilege	[ "When controlling for other factors such as age and education, asian americans earnings are far below whites. Asian American immigrants tend to be highly educated compared to the average white American and thus get high paying jobs. ([here](_URL_0_) is a paper loaded with relevant data). The issue on that slide isn...
Why does every country aside from the US have really crazy skyscrapers/skylines while New York mostly looks like a bunch of boxes	[ "I am not an expert on architecture but I think it has something to do with the time at which most of these buildings were made. Also keep in mind that even in cities with artistic buildings many will still be very basic looking because it is spatially and economically efficient.", "New York has a bunch of boxes ...
the chemicals in cigarettes.	[ "There is a [list of cigarette additives](_URL_0_), all of them are FDA approved food ingredients, but the FDA doesn't test for saftey when burnt. Obviously that list includes everyone's addatives, so no cigarette has all 599 addatives (many ingredients have similar purposes). \n\nThe issue is when the tobacco le...
How can stores like Menard's give away products (after rebate)?	[ "Two things: \n\n * Many people don't follow through with the rebate process (laziness, forget, etc.). That's why the rebate process exists - why not just make it an instant discount? Because if there's a process, many won't go through with it. That way on average, they can still make a profit on the item, even t...
How did the Ozone layer first form, and if there's is a hole, can it reform, and if not why?	[ "The ozone in the upper atmosphere is created by high energy interplanetary particles hitting oxygen molecules causing it to split into individual oxygen atoms. When a free oxygen atom hits an oxygen molecule it forms ozone. This ozone is constantly being broken down by the ozone molecules hitting each other formin...
How do engineers calculate the maximum weight a bridge can support?	[ "The structural strengths of all common building materials are well-studied and well-known. The actual practice is more complex than this, but the basic idea is you say \"This pillar is 1000 square inches of steel in cross-section, a square inch of steel can support a ton, so this pillar can support 1000 tons\". Th...
Why do small phantom files appear whenever I copy folders from a Mac to a PC?	[ "The phantom files are bits of information made by OS X during the copying process to help Windows track bits of information about those files that its filesystem isn't able to support by default.\n\n.ds_store files tell the Mac how to display a particular folder. For example, if you drag the icons around to be arr...
The formation of the moon (The Ejected Ring Theory)	[ "The capture theory doesn't work because the mass of the moon vs the earth make it unlikely; the moon is just too massive to be captured by the earth.\n\nThe Ejected Ring is basically: a large body (about Mar-sized) crashed into the earth, a bunch of rock was ejected into orbit (first forming a ring around the eart...
How Pilots and Trucks driver communicate over the radio ?	[ "YouTube has interesting conversations between tower and planes. Search for \"ATC recordings.\" A guy named 'Kennedy Steve' is famous because of his delivery/humor. You could just search for that as well.", "Pilots are advised by air traffic control which channels to use.\n\nTruck drivers use the same CB channels...
Why are brass, copper, and bronze used in pluming?	[ "They're very corrosion resistant, considering the constant exposure to water. They're also very malleable (meaning they're easily shaped into tube and pipe) and not toxic, plus it is easy enough to be bent by hand rather than having to fabricate exact curves and lengths. In addition, the three metals are also resi...
Why are my income tax rates going up this year? What's included in the increase?	[ "That isn't your income tax rate. That's FICA, which goes to pay towards Social security. it's a tax on your income but not THE \"income tax\", which is the same for most americans except the rich.\n\nThat clarified...\n\nA few years ago congress (in order to help out early in the recession) passed a bill which t...
Do animals have the capability to remember or even understand that they were rescued from terrible conditions in the immediate and distant future?	[ "Most animals dont remember anything very well, but they get habits ingrained in them. For example, i have a rescue cat who still eats every meal like its her last and that she has to scrape up every last bit (even though shes absolutely fed enough). so in that sense they \"remember\"\n\nSo with all that in mind, I...
Explain like I'm five: time/space and time dilation.	[ "Imagine that you are driving a car at its max speed of 60 mph (the gas is stuck at full throttle) on a flat plane. You see another car travelling the same speed beside you. At first it is travelling in the same direction as you. So you see it as traveling 60mph forward and 0mph sideways relative to you. \n\nThen i...
How is it that PM2.5 (or similar forms of pollution) cause premature deaths both in short (e.g. same weekend as the pollution) and in long (e.g. 20 years) term? What is the mechanism? And how is city pollution different - in terms of consequences - than a dusty day in the desert?	[ "This is actually my field, and the exact technical answer is we don't know.\n\nThis is because we don't know what any individual breaths on a daily basis, we don't follow you all around with air meters, so we can't tell how long you hung out beside an idle car, or with a bunch of smokers, or time spent frolicing i...
Is India better or worse after colonialism?	[ "Definitely worse: their reserves and resources were taken away from them from British imperialism. They were left with a divided government and divided country. Did you know there was no such thing as India, Pakistan, or Afghanistan? The partition of Hindustan was caused by colonial disruption. As usual, there was...
What is reification in C# and how does it work?	[ "In some languages, like C++, all template classes are compiled ahead of time.\n\nIn other languages, like C#, new template classes can be created on the fly, while your program is running. This is an important advantage for library code, so that additional data types can be added after the library is distributed...
What makes a man a grower vs a shower?	[ "A grower is referring to a penis that is larger erect than it is flaccid. A shower is a penis that's pretty much the same size flaccid or erect.\n\nWith female genitals, there's something kinda similar, innies and outies. Innies being where the labia minora(the flaps) are hidden or very minimal when viewing a vagi...
Why is it when a skunk is killed or run over everything for miles is saturated with the stench. How can it cling to so much air in so much space?	[ "It's s powerful chemical called thiols, sulfur based. Extremely concentrated, even bears run from it. It's like the stuff put in natural gas so you know a leak. A very little goes a long way" ]
Most of my friends have iPhones or Macs, and the insulation on their chargers always seems to disappear. Where does it go?	[ "Well, onto the floor. If the floor is carpeted, it will be very difficult to find. Then, whenever the floor is vacuumed, it gets picked up. \n \nThe reason it brakes off in the first place is because the owners aren't carful with it, most likely having bend it at either/both ends, [like this](_URL_0_) I don't th...
Why does our body produce lactic acid when we exercise?	[ "Not enough oxygen to go around. Normally, any of our cells with mitochondria (which is most of them) would prefer to undergo aerobic respiration. It's very efficient, allowing you to get a buttload of ATP (an energy carrier) out of each molecule of glucose. The thing is, you need oxygen to do it. At rest, that's f...
Proper Eye Contact	[ "Use it as an accent to your conversation. If you never look at someone you're either ignoring them or submitting to them, so when you've finished your conversation you stop making eye contact and look away until they get the idea. If you look directly at someone constantly you're either creepy as hell or attempt...
If Trump gets elected as president how exactly will he get Mexico to pay for this wall that has proposed?	[ "I think he was going to sanction mexico until they built it...\n\nbut thats not how this works... that not how any of this works.", "I believe he said he'll implement a tariff on Mexican goods, so Mexican trades people will have to pay more to have their goods brought over and sold in the States." ]
The Export–Import Bank of the United States	[ "The main purpose of the ExIm bank is to backstop loans to US businesses that want to conduct business with customers overseas. A typical commercial bank might find that loaning a business money to expand operations to serve a foreign client is too risky: what if the customer fails to pay their bill? \n\nThe ExIm b...
Why would the Turkish military attempt a coup against the Turkish government?	[ "The Turkish military has a long standing history of being the liberal safeguard against conservative (Islamist) leaders or groups.\n\nErdogan, who is the current President and leader of the Turkish political party AKP, has taken many steps in a very conservative, Islamic direction.\n\nAlong with the worsening secu...
How do they measure the distance players run/cover in a soccer/football game?	[ "They basically film the field and use computer software to track each player and calculate how far theyve traveled. Basically if you know the scale of the field in the camera its easy." ]
How were drugs made in the first place? like who decided "I'm gonna get gasoline battery acid and gravel and mix in a leaf, and then light it on fire and breathe next to it"?	[ "Many drugs including pharmaceuticals originate from botany. A lot of tropical climate plants contain chemicals which can be studied and modified to increase psychoactivity. Many other drugs are synthesized by modifying the chemical structures of existing drugs. Hence the constant bombardment of new pills and such...
When performing live, why do the artists alter the melody of their well known songs so often?	[ "If a band or solo performer is on tour, it's likely they are playing that same song over and over and over again. If it's currently a hit on the radio, not only are they playing it nearly every night, but they are also using it as their sound check song because they want to make sure it sounds perfect since the th...
Since the president of Comcast said, "We don't enforce data caps." publicly and there is proof that they do, why couldn't a civilian sue them?	[ "\"Suing\" isn't that simple in American common law. Strictly based on what a Comcast executive said according to your post and not in regards to any other business practices of the company, no civilian would perceivably have legal standing in court.\n\nThe first hurdle of holding legal standing (even in class acti...
Why are chimps so much stronger than humans?	[ "This is a good, straightforward article on the matter: _URL_0_", "Their muscles are more for explosive power--sudden actions. Human muscles are built for longevity--we have more stamina." ]
When driving, is it more fuel efficient to put more pressure on the gas in a lower gear, or less in a higher one?	[ "Generally speaking, while driving at a constant speed, it's more efficient to have the engine spin slower in a higher gear with less throttle applied (ideally, about 50-100% above idle, 1500-2000rpm for a car that idles at 1000rpm, as is typical). \n\nFor each revolution of the motor, you're travelling further due...
Why is Java popular and why did Google write Android OS in java?	[ "I won't comment on why Java is popular. I don't know (and by this I don't mean to say it shouldn't have been, I literally just mean I don't know).\n\nAs for Android: Java code has the distinct advantage that it isn't written specifically for any one processor architecture. Like Android, the choice of going with Ja...
With all of the mind-altering drugs out there that damage your memory, thinking, and brain in general, how come there are no "good" drugs that alter your brain in a good way?	[ "That's the funny thing: The good drugs are often the same drugs as the bad drugs. You've just only been hearing the bad things, because that's all anyone has a vested interest in telling you.\n\nMedical marijuana is a big thing, after all. Not to mention the growing research into medical usage of psychedelics on d...
Short bursts of rain	[ "Ever seen the sky have clouds and open space mixed around? That's because the air by the ground is warmed by the hot earth and rises up. That punches a hole in the clouds. Then it gets colder and can't hold the moisture anymore, making a cloud and rain falls. And the colder air falls down, warming near the earth...
BIOLOGY] Is there a limit to how much a person can be massaged?	[ "Massaging is essentially just providing external stimulation to the skin/muscles.\n\nIf you keep massaging a single muscle/muscle group, after sometime, you'll start feeling numb as the brain just starts ignoring the massage stimulation coming from the nerves of that area.\n\nOn the other handd , If you are giving...
how can a layer of metamorphic rocks be on top of a layer of sedimentary rocks? Shouldn't the deepest layer have higher pressure and temperature?	[ "You are absolutely right, the deeper a layer gets buried, the higher pressure and temperature it is subjected to. \n\n\nHowever, there are two ways to explain your question. Compressive tectonic forces can fold or fault rock layers which would place metamorphic rocks above sedimentary rocks. \n\nA thrust fault is ...
What exactly is the role of a movie producer?	[ "Producers make the movie happen. They find a script, they get it rewritten, they get funding, they approve the casting, they approve the locations, they hire the director, they make sure it doesn't go over budget, and they sign it off when it's complete. It's the non-arty side of movie making.\n\nExecutive produce...
Database Normalisation	[ "1st) Don't put multiple bits of data in a (cell?). Not doing this could break a program doing data extraction. Make another row instead. \n\nDon't:\n\n\| Name \| Address \| Subject \|\n\|:-----------:\|:------------:\|:------------:\|\n\| Adam \| Red Street \| Maths Science\n\| Bill \| Blue Street\| E...
Why are so many intelligent, gifted individuals so frequently unable to find happiness for themselves?	[ "The saying is \"Ignorance is bliss\" so the less intelligent you are, the less stressful your life is in a sort. You don't have to worry about a lot of responsibilities and issues(even if its your job to, you simply don't as you're inferior in intelligence and cannot comprehend the need to worry about them)\n\nEdi...
why is it so hard to breath when you fall on your back or get punched in the stomach.	[ "You take a hit to a nerve (solar plexus) that controls the diaphragm, the muscle that controls most of your breathing. When it takes a hit it turns off for a short period of time and so you can only take short breaths by using your ribs.", "It is your diaphragm, the muscles that control your breathing, that get...
Why is it so hard to permanently cure allergies such as nut and shellfish?	[ "Not likely.\n\nAllergies aren't like most diseases.\n\nMost diseases are caused by something acting weird, or something extra growing somewhere, and are easily treated and cured.\n\nAllergies though, are the body attacking things that it shouldn't.\n\nInstead of knowing that it should attack bacteria, and leave th...
why is it possible for sprinters to get faster times.through the decades?	[ "There's some difference between what athletes of today can accomplish with better sports science and nutrition and athletes in prior times. Also, there are a lot more people alive today than there were even two generations ago, so there's a greater chance that the fastest person ever is alive today than two genera...
how did different races evolve?	[ "Not only are we all from a single \"herd\" of humans, but we all share a single common ancestor, [Mitochondrial Eve] (_URL_0_)" ]
Why do metaphors move us in a way that plain, literal writing cannot?	[ "The brain works in a categorical way in order to simplify. Auto-associative memory is the saturating of neural pathways with many connected reference points to consolidate the idea/experience into memory (learning). You can recall a big piece of data from a tiny sample, like unpacking a compressed computer file....
What would it take to get a third party into the debates and why can't they just be included automatically?	[ "The Commission on Presidential Debates requires that a candidate be polling at at least 15% to be included in the debates. the reason third parties can't be included automatically is because dozens of people run for President in every state. If you didn't establish a cutoff somewhere, you would have a stage with l...
The differences in the different types of motor oil for automobiles. 10W40; 0W20; etc.	[ "When you see a W on a viscosity rating it means that this oil viscosity has been tested for winter use at a colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same visco...
Why is fish not considered "meat" by those who want to avoid eating meat for certain religious beliefs?	[ "Early Christianity's official language was Latin, and in that language there are distinct words for the flesh of land animals and the flesh of water-dwelling animals.\n\nSo in early proclamations about fasts in which one refrains from eating what we would call \"meat\", the Latin word \"carnis\" would have bee...
Bernard Madoff's fraud	[ "Let's say start an investment fund. I get you and 100 of your friends to each give me $10K, I take it and buy stocks and bonds and such, and because I'm good at it, I make a 20% return. That's real good, so of course you are going to keep you money in my fund...you'll probably put more money in, and get your fri...
Do tax refunds affect the economy?	[ "On a long term basis, no.\n\nTax refunds come from money that has been taken out of your paycheck by the company that you work for. The company sends that money to the government and 'pays the taxes for you'.\n\nIf you didn't have the money taken out of your paycheck, you would 'get your refund' right away, in sm...
Why does almost everybody seem to have one or more words they can't pronounce correctly?	[ "I THINK it is because people actually have different pronunciation because how they think it is supposed to be pronounced based on the context of what they word actually means. for example - for me the word Aquarium is two latin words joined together, Aqua for water in latin and rium for room in london. so in my ...
Why do cockroachs can survive after a nuclear attack?	[ "This is a ELI5 explanation, it's more technical, but contains the good bits.\n\nRadiation damages your DNA (anything's DNA, not just humans). Most of the time, this just kills the cell. If it happens while the cells are dividing, this is really bad, because your new cells will be damaged and always produce damag...
How there can be so many Pizza Shops in such a close proximity, yet they all seem to stay afloat?	[ "Yea, upstate NY here.\nWe have 2 Chinese shops and 3 pizza shops in a small 5k town with nearby towns. In the evening there is enough demand. Its cheap, tasty food you call in an order and pickup your meal. Not much hassle and you dont have to prepare your own food and not to be too judgmental but the class isnt h...
The controversy with Supermax prisons	[ "1) Human rights mostly, though not many people care about the prisoners that are sent to a supermax. These prisons tend to be the most inhumane and secretive about their practices. It is also very expensive to house prisoners there (see 2).\n\n2) \"Supermaxes' average cost to taxpayers is about $50,000 per inmat...
why does cheese stretch when you heat it?	[ "Let's think back to Chemistry lessons from school. In a solid, the particles are all bunched together with no room to move. In a liquid, the particles have more room to move, and roll about all over eachother. In a gas, the particles are spread out and can do what they like. So when you heat cheese (a solid), it m...
Where does burned fat go?	[ "if you mean when we lose weight, mostly into carbon that is exhaled. we breathe in O2 and breathe out CO2, a product of metabolism.", "It's broken down mostly into gas and energy. The energy radiates from our body in the form of heat. The gas is exhaled from our body. The rest is pooped out. The water is sw...
Does anesthesia block the perception of pain, or just the memory of the painful experience?	[ "I just had mine extracted a couple days ago. I believe they give you different medications. One to \"put you to sleep\" and the other as a nerve block. When my sedation finally wore off, I was still numb for a few hours.", "It depends on the specific kind of painkiller, but in general it blocks the pain signal. ...
If the USA decided to go with full universal healthcare, what would happen to the private insurance companies?	[ "There are a lot of models for universal health care, so it depends on how it gets implemented. For example, in the UK, the NHS covers all basic services, but plenty of people buy private insurance for increased convenience of services.\n\nAny way you cut it, private insurers are going to lose a huge number of cust...
If we were a computer, what would be our equivalent specifications?	[ "Most of us would be the free calculator that you get when you open a new checking account.", "There really is no way to measure it because we think in an entirely different way. On a computer it is relatively easy to measure this stuff, because everything, everywhere comes down to a flow of bits. With humans,...
How does an octopus know when its changed to the correct color of its surroundings?	[ "There is a theory that their weirdly shaped pupils result in something called \"chromatic aberration\", the result of different wavelengths of light refracting at different angles. In humans this causes colored \"fringes\" around objects which can be observed at the edges of eyeglasses or if your eyes are dilated ...
Why does it take weeks (or months) to receive results from multiple choice exams when everything is corrected and generated by machines?	[ "I would imagine they have tens of thousands of sheets to mark. Then keying in marks, typing out certificates, etc for some exams. I've been waiting on my UNSW ICAS results for MONTHS.", "I can tell you that that has not been my experience. At my college, there was a TV on the way out of the testing center that w...
How can dogs drink from dirty puddles and eat off the ground, which would make us sick, but they get sick from eating a lot of human food, such as fried food and onions?	[ "Drinking from dirty puddles and eating off the ground would make you sick maybe 1% of the time, if you did it a lot. (Since your immune system isn't used to it, if you did it just once, you'd probably have more than a 1% chance.)\n\nIf you were okay with getting food poisoning or getting worms every couple weeks o...
Why do streamed movies cost the same as DVDs/Blu-Rays?	[ "They charge that amount because people pay it. Yes, it's cheaper to stream than to produce a physical product, but since people will still pay the blu-ray prices for a streamed movie, that's what they charge.", "Its because people pay it for that price. If everyone stopped paying for digital copies at the same p...
Why do we all make the same faces for x emotion?	[ "Quite simply, because they're genetically ingrained. These expressions are not something learned, but rather are hard wired into our brain to express an emotion." ]
- Why do we only ever see white people with down syndrome	[ "Nobody is exempted from having Down Syndrome. But, there may be a variety of factors at play that have resulted in your lack of encounters with non-white people with Down Syndrome.\n\nFirst, according to the Centers for Disease Control, the mortality rate for black infants with Down Syndrome is higher than for whi...
What effects would consuming an excess amount of protein do in the long term?	[ "According to the Wikipedia article on \"protein poisoning\" or rabbit starvation (since historically the way to get this condition is to consume large quantities of rabbit - an extremely lean meat), excessive protein in the human body would lead to excess ammonia and urea in the bloodstream due to amino acid decom...
Who sets the start time for basketball/sports games and why do they start at random minutes?	[ "Short answer: Because TV\n\nLonger answer: By starting 11 minutes early, in your example, the broadcast has time to start, do a little lead-in/pre-game show, if you will, and get things rolling before the actual game starts at the top of the hour.\n\nAlso, it doesn't happen as much anymore with people DVR'ing ever...
When i eat am I actually chewing as loud as it sounds like to me?	[ "No, when you chew, vibrations travel through your jaw bone and directly to your inner ear, where you hear them. On the other hand, the vibrations have to travel through air to get to someone else's ear.\n\nSound travels best in solids, followed by liquids, and worst in gasses. This is because molecules are closer ...
How does a show like Survivor / The Amazing Race capture so many angles in a scene, especially the critical ones in the plotline?	[ "I have an anecdotal answer for you. Several years ago, I spent a while working with a guy who won a season of the Israeli Survivor. Talking about how \"real\" it was, he said that all the tasks and results were legit, but that they often reenacted them shortly after they finished to allow the camera crew to get be...
Why can cops let you off the hook in certain situations? Wouldn't letting them do something illegal be illegal too?	[ "He's hoping that he has scared you into learning the error of your ways. The best form of policing is preventing crime, and by doing things the way you described, it sounds like he's achieved his goal. You're thinking about it. \"I got away with it this time - next time I might not be so lucky, so I won't do it...
Why can we walk for hours without our legs hurting but standing still for less than an hour starts to hurt	[ "We evolved to stand as a way to walk, and everything about it is adapted to that purpose. Our balance is better when walking than standing still, circulation better, everything about it revolves around movement.\n\nTo stand still is inefficient, joints don't work as well because they're not being regulated by a r...
Why do I gag when I put a finger down my throat but food doesn't have the same effect?	[ "Because when you swallow, peristalsis is pushing the food down that way and your brain recognises that. Also, you tend not to hold food right at the back of your throat with your throat open. If breathing through your mouth, your tongue tends to hold the food away from the back of your throat anyway so you don't i...
How do animals know who won a fight for dominance?	[ "The victory for dominance comes when the an animal has established dominance over the other.\n\nWhenever the other animal feels powerless to continue, the dominating animal will psychologically feel being \"in charge\". The other animal might feel \"under control\", and thus he/she isn't dominative. How an animal ...
How do surfers speed up to escape a crested wave?	[ "It's mostly unweighting off the bottom of the wave, the \"flats\", and hopping the board up onto the face of the wave, even ever so slightly like you see when she is near the white water. By unweighting and getting the board up, she can then redirect the board down and use both gravity and the push of the wave fr...
What would happen if The Moon was to blow up tomorrow?	[ "We'd have to worry about several things: 1) the tides. The tides would be all messed up, and we certainly would see changes in the way our seas and oceans behave. 2) We'd have to worry, possibly, about pieces of the moon falling on us." ]
When we launch space missions, what's stopping other nations from believing that's a targeted bomb or nuke and how is it different from an actual attack?	[ "First of all, its not like a space agency fires up this massive and amazingly complex rocket with complete secrecey, and goes \"surprise! Its STS-134. You know, delivering supplies to the ISS. Yeah, usually we plan these things but we had a spare shuttle stack lying around and a few astronauts were looking for som...
Why do you get hungrier after we snack on something?	[ "When you are really hungry for a while, your brain realizes that you're not going to feed yourself, so it shuts down the thingy that makes you feel hungry, after eating something small your brain realizes that you are feeding it and since you need the food it turns the thingy that makes you feel hungry back on" ]
why a manual transmission vehicle can sometimes stalls from a hill start	[ "Manual transmissions work by manually selecting a gear and then supplying the engine with the right amount of gas to get a 3,000+ lb car going as you engage the gear. Normally, you're on a flat surface so the amount of gas required is that which generates enough energy/momentum to \"push\" the weight of the car f...
Why do Americans dye their cheese orange?	[ "What color is cheddar cheese where you come from? All cheese is naturally white, or off white, or even a golden yellow, depending on the type of milk used. But you'll never find a cow that gives orange milk. The color instead comes from the flavorless Annatto seed, which gives Wisconsin cheddar that pumpkin orange...
Why can't two anti-virus protectors work together?	[ "Let's say you hire two security guards to guard your bank - without telling each other. When one of them sees the other enter the bank at night, with a gun, would you be surprised if he just shoots him?\n\nThe security guards will be able to work as a team, only if they know each other and work out a way to share ...
What makes Unreal Engine 4 so... unreal?	[ "In simplest terms, no other game engine has the sheer amount of man hours poured into it as Unreal Engine. UE has had a ton of resources available to hone their craft.\n\nKeep in mind this is the 4th iteration...Unreal Engine 1 came out in 1998. \n\n[Here's a pretty comparison of versions 1 through 3](_URL_0_)", ...

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