Split (3)

train · 273k rows

title stringlengths 0 299	text list
Why do arcade games that use game cards have to still count the tickets by ones or twos on the card swiper screen? Can't they just instantly put it on your card?	[ "You don't notice digital transactions as much as physical ones. One common piece of advice is to tell people to deal with daily small transactions in cash; you're less likely to buy that bagel and coffee every day if you have to pull cash from your wallet every time, rather than if you just mindlessly swipe a car...
How come a drug developed to treat one disease, can be found to treat other unrelated diseases?	[ "Imagine you have two circles of friends, circle A and circle B.\n\nSometime circle A is feeling down and needs cheering up, and sometimes circle B is feeling down.\n\nSo what you decide to do is pick one person from circle A and cheer them up, in doing that they go back to the other people in circle A and cheer th...
How does bcrypt work?	[ "It does store the salt. It's prepended to the final hash." ]
- high heart rate	[ "190 bpm while running for a person around 30 years old is considered average, so according to that, yours is higher than average but not dangerously high.\n\nDon't forget the possibility that the watch isn't perfect at monitoring your heart rate. The best and easiest way is to do it yourself. Find your pulse, set ...
What's the point of having and operating CCTV if you can rarely actually identify anyone using it?	[ "Detterent. Cheaper insurance. And even though you may not be able to identify people, it still serves to show what happened, which is often useful for insurance and legal purposes.", "people are less likely to commit crimes if they know they are being recorded imho", "First of all: storing high quality surveil...
Why do singers scrunch up their shoulders or move their hand up and down when they sing higher/lower?	[ "By flexing the diaphragm it changes the pitch and tone of the note. Sometimes it takes auxillary muscles. Imagine someone flexing their bicep with a straight arm. But they dont get the most of it. Also some is ritual." ]
Why is a photocopying machine so huge compared to a normal colour printer?	[ "There are very small photocopiers too.\n\nOn the large ones, most of the extra size is for complex paper handling: several large supplies of different sizes of paper; a collator that can make 10-20 separate copies of a whole document; sometimes an auto-stapler; a high-speed jam-resistant paper feeding and duplexin...
How do we know that two identical snowflakes have never existed and never will?	[ "The reason we can say no two snowflakes are identical with such high confidence is due to the absolutely disgusting number of possible differences that can occur in the formation of a snowflake. To put it into perspective, take a deck of cards and shuffle it. Statistically speaking, the order in which the cards en...
What is up with the child entertainers of North Korea?	[ "Yes, completely true. These kids are placed into these programs starting at a very early age and usually are \"performers\" for a while. People disguised it as a job of high honor and privilege but these kids go through a hard reality. For example, if you have ever seen the \"mass games\" in NK, there are thousand...
Which is a better, more practical healthcare option?	[ "At 630 a month?\nYou should probably be looking into Medicaid.\n\nThe Obamacare marketplace is for people that make too much for Medicaid. Part of this rollout was also a boost to how much you could make and not still qualify for medicaid--however, many (red) states chose to not take this option. The federal gov...
How do birds fly from standing still?	[ "It certainly is not effortless, their wings are part of their body and flapping hard enough to shoot off the ground takes a lot of effort.\n\nTheir bodies are very light and their wings very large comparatively so a big strong flap pushes enough air to propel themselves.", "The available lift of a foil vs. airsp...
How come so many games are called top game or game of the year?	[ "\"By Who?\" is the million dollar question, and also the answer.\n\nMy game can be called game of the year by review site number 57, while your game is called game of the year by review site 58, and somebody else's game can be game of the year by review site 59.\n\nAs long as somebody calls it game of the year its...
Besides bragging rights, for what reasons are countries still "racing" in space exploration?	[ "imagine being in 2nd grade and everyone had home packed sandwiches and juice boxes and you were the first kid to have that baller ass pizza lunchable and caprisun combo. \n\nnot only are you the coolest kid in the lunchroom, but you could trade that caprisun for way above its value---a juice box and a bag of oreos...
how does the taliban manipulate people into thinking that there going to be accepted in heaven if they remove education or commit suicide bombings	[ "People from \"1st world\" countries often don't realize how much more education and knowledge they have access to than people from 3rd world countries. Knowledge is truely power in most circumstances.\n\nGroups like the Taliban take advantage of the fact that certain peoples only education comes from their parent...
Gauge theory	[ "Avast ye! Yer not alone in askin', and kind strangers have explained:\n\n1. [ELI5: Gauge Theory ](_URL_6_) ^(_1 comment_)\n1. [ELI5:Gauge Theory and its relation to particle physics ](_URL_2_) ^(_14 comments_)\n1. [ELI5: Gauge Theory, what is it exactly, why is it important? ](_URL_0_) ^(_2 comments_)\n1. [ELI5: W...
Psychogenic retrograde amnesia.	[ "Psychogenic: created by the mind, rather than a physical condition\n\nRetrograde: Affecting past memories, rather than the ability to create new ones\n\nAmnesia: A loss of memory\n\nAlmost always tied to a deeper psychological issue, often a single incident that would be too painful to handle. Abuse, seeing someth...
How/why did China's population grow so large so fast?	[ "Holy crap, something I can actually answer!\n\nFrom what I remember in my Chinese history class, Leader Mao wanted a strong army and felt a large population was necessary. Lots of campaigns were led to convince people to have as many kids as possible. It didn't take long before the country had a massive population...
What is in magnets that make them magnets, as oppose to a piece of iron or other metal.	[ "Permanent magnetism is caused when most of the electrons in an object have their spins aligned in the same direction.\n\nThere isn't really a way to ELI5 it.", "A magnet is any object that has a magnetic field. The space surrounding a magnet, in which magnetic force is exerted, is called a magnetic field. If a b...
Where do "smells" go after they have dissipated?	[ "Think of a glass of water being the gaseous area around you... The smelling zone... \nYou now drop on drop of liquid food colouring into the glass, the dark heavy first impact area of that droplet represents, let's say a fart. \n\nAfter the initial impact of the fart it begins to dissipate into the rest of the wat...
How come we don't get burns (or worse) on water slides?	[ "The water acts as a thin barrier between you and the slide, so that reduces the friction to the point where you wont be burned.\n\nAs long as you're wet, you should be ok with a brush against the side (where the water doesnt flow), but sliding down when everything is dry would result in some serious friction burns...
How is it possible for pasta to stick together in water when it is being boiled?	[ "You are boiling the pasta in too little water, you really need at least a gallon of water at a rolling boil. What's happening is you are saturating the water with excess starch, it gelantizes and turns into glue. literally, it's library paste." ]
Why do humans need a variety of sustenance in order to stave off malnutrition, but many animals can live on only a single food?	[ "We eat a variety of foods to live optimally. In theory, you can survive off a singular diet, and as long as you get enough calories, you will live. However for optimal brain development in children, for the longevity of our bodies and living many years without disease/illness, we eat lots of different foods. For...
How can an Air Force pilot become so good at maneuvering something as complicated as an aircraft?	[ "Navy jet guy here.\n\nThe ability to fly is simply the ability to take in a bunch of information and with it perform a ton of small and simple tasks in a timely and organized fashion. Flight training is built around this concept.\n\nThere are two very big ideas that every military aviator is subjected to during tr...
What happens in your body when you lose appetite?	[ "Certain chemicals in your brain stop telling it that you are hungry" ]
If climate change is such a massive problem, why can't the government create laws to begin to limit the usage of items that increase greenhouse gases, until they can gradually completely ban it?	[ "In economics, it's called an \"externality\" when the impact or cost of some action will affect a person other than the person who's performing that action.\n\nAir pollution is a famous example of an externality. Factories and trucks produce large amounts of smog that can affect plenty of people who had nothing ...
How can a fired ex-employee sue their boss for discrimination? Couldn't the boss just make up a reason for firing them (attitude, wardrobe, etc)?	[ "The person suing would take all the evidence they have that it was disfrimination, the person being sued would take all the evidence they have that it was another reason, and a judge would decide whose story is more likely.\n\nIf someone believes they were fired for discrimination, the boss most of done some discr...
I'm from the UK and only heard about Comcast recently; what is so bad about it?	[ "Cable company and ISP. People get mad at their admittedly poor customer service and their state reinforced local monopolies (rarely do ISPs compete with each other in the US). Then a bunch of people whose mothers pay their cable bill come to Reddit to complain that they aren't getting free gigabit to their house."...
The men/women financial gap	[ "There two questions: Is there a gender gap? Why?\n\nTo answer your first question: yes. Full-time women workers make between 77 and 83 percent what a full-time male worker makes in Western Nations. The [wiki article](_URL_0_) has cites.\n\nThe more interesting question is why. It could be due to gender differences...
How do the battery meters in phones/laptops/other electronics 'adapt' to changing battery life as a device ages?	[ "Short answer - badly.\n\nlonger answer - they monitor the amount of energy that they are using and cross reference it with the measured battery voltage. If the battery voltage gets low enough that it's a good assumption that it's nearly dead, then the device re-calibrates its own estimate of what the capacity is."...
Bodybuilding, power lifting, strongman, crossfit training, calisthenics, etc. What's the difference?	[ "Largely it's the goal of the training. Power lifting is strictly about developing strength for specific types of lifting. Body building is about developing muscle tone and size, but not necessarily strength. Calisthenics tends to use lighter or just body weight, with a goal toward overall aerobic fitness. Crossfit...
How do DDoS attacks work?	[ "In simplest terms, DDoS (Distributed Denial of Service) attack in most cases consists of multiple malware infected PCs being controled by whoever is carrying out the attack, opening or requesting site content which consumes bandwidth and normal users can't access it or are having hard time accessing it.\n\nLet's s...
If an overweight person goes several days without eating to lose weight, what are the unhealthy side effects this has on the body?	[ "Fasting is fine, short term fasting with good liquid intake is not going to be detrimental for a healthy individual. Good luck keeping it up though, the will power required is astronomical.", "Fasted for two weeks once, the mental clarity after a few days was so intoxicating and the most alluring part of it. Aft...
Why is my belly button lint always navy blue, regardless of my t-shirt color?	[ "Overwhelming the clothes you wear are of darker colours, blue, grey, black etc. The lint is build up over time. Dr Karl (an Australian scientist) actually studied this. He recently did an AMA too, but I cant find it for you now. Interestingly, if you shave or generally have no stomach hair you dont get belly butto...
How can London Heathrow get by on just TWO runways!?	[ "I would assume those are just the primary take-off/landing runways. There is surely a series of smaller runways used for moving \"into position\" and taxiing around the airport. Theoretically, you could have a plane starting take-off while another is just leaving the ground on the other end.\n\nI'm sure they are...
Pain tolerance fluctuations (NSFW)	[ "When you're doing the act, your adrenaline is flowing, your endorphins are up... your body is basically focusing itself on the act and tuning out other stimuli as much as possible. \n\nIt's the same reason a punch hurts less if you're sweating and warmed up than if you get sucker punched. Your body's in fight mo...
How do computers "delete" data? Where does that data "go"?	[ "Data is stored on your hard drive as a bunch of 1s and 0s. The number 5 might be stored as 0000101. The letter 'R' might be stored as 00110010. \n\nNow, your data (word documents/music/porn) isn't the only thing on your hard drive. You'll also find programs (like web browsers and games) and your operating system (...
The battle of Stalingrad (lack of Russian armor)	[ "Most of the fighting in the battle of Stalingrad happened inside the city itself where armor is not all that useful. Tanks are powerful in open country because they can bust a hole in the enemy's lines and then move into their rear areas and wreck their command and supply units. Inside a city a tank is basically ...
How does the concept of Universal Basic Income work?	[ "The idea is that instead of need based aid, which requires a huge, inefficient bureaucracy to administer, you just give everyone a set amount of money. \n\nWelfare, education, health care, retirement, all of those, at least in part, are provider for with a basic stipend everyone gets. Those who don't need it wil...
How do (did some) hunting tribes survive living of an all-meat-diet (like some Inuit tribes)?	[ "They eat a lot of things like organs, fat, and bone marrow that contain more nutrients than the normal cuts of meat you'd find at the grocery store.\n\nIt's entirely possible to meet your nutritional requirements on a totally carnivorous diet if you're willing to eat the \"gross\" parts of animals.", "Did you ev...
What would happen if you put sunscreen (or some form of spf) on plants/trees?	[ "Plants have a waxy coating, cuticle, on their leaves which protect against the environment. The underside of the leaf opens at night and allows the leaf to respire. The plant also produces flavonols that protect against uv rays. Basically nothing will happen to the plant of you applied Sun block unless you applied...
What do the dilation drops actually do to your eyes and why does it make your eyes sensitive to light?	[ "Dilation drops open up your pupils, much like they would naturally do in the dark, to allow more light in. Helps the doctor see better when he's examining your eyes. Going outside while your pupils are dilated hurts because your pupils are already open and they can't retract like they would normally, so the light ...
Seriously, what is the deal with airline food?	[ "Airline food has to be prepared many hours in advance, then kept warm until it's needed. Hundreds of meals have to be kept in a very tiny space. It needs to be cooked on an industrial scale. It's not an easy task.\n\nOf course it could be done if they wanted to. But:\n\n > Why doesn't competition between airlines...
What is the royal family’s job?	[ "The Queen is the official head of the government and the ultimate authority by which it is operated. What good does any monarch provide for their country?\n\nIn a practical sense she doesn't make many decisions but she can fire the Prime Minister if she wants and install someone else.", "CGP Grey has ~~two~~ thr...
Why are livers prone to failure, when they can regrow themselves?	[ "Livers aren't prone to fail over time due to alcohol, that is the wrong way to look at it.\n\nLivers valiantly extend the lives of people dead set on drinking themselves to death, holding out for as long as they can.", "It takes a relative fuckton of alcohol abuse to cause liver failure. You pretty much have to ...
If phone numbers are public record why can't they be reverse searched?	[ "> why do they charge to find out who's actually calling you?\n\nBecause they aren't public record, so those companies need to buy the data from somewhere. Granted, most land lines will appear in the white pages/directories, but those you obviously do not need to pay to get info (just go on the whitepages websi...
Periods.. Other than humans very few animals have them. What are the other mammals doing differently?	[ "Basically humans aren't like most other species. In many other species the mother controls the bloodflow and nutrients to the embryo. That's why several animals can miscarry their pregnancy on demand to evade a predator. Human females do not control this nutrient exchange. Basically once an embryo attaches itself ...
What do people see when they look at me?	[ "Have you never seen a pic of you?", "The reversed version of it. For example, I part my hair to what I think is the right side but when others see me they see it as being parted to my left." ]
How come car companies use glass that shatters into a million peices as a windshield and not something like plastic?	[ "Windshields behave the way they do for safety. It's a feature, not a problem. In the case of an accident, you get either a large cracked bendy piece of windshield, or you get lots of little round fragments that can't cut you and kill you as you experience the crash. Large shards (like you see in a normal window) w...
What's the point of drinking 8 glasses of water a day if I just urinate the majority of it?	[ "What's the point in eating if I just poop most of it?", "8 cups is a myth. When you're thirsty, drink. When you're not, don't. You do get water from all the beverages you drink, but obviously, a significant portion of what you drink ought to be water.\n\nAs for why, your body is continuously expelling water. ...
Why use fans on heat sinks rather than a small thermoelectric generator feeding into the PSU?	[ "Electricity is cheap and the amount you would get from most products that could utilize this is negligible. Small generators typically produce small voltages that would have to be converted, and large generators require large amounts of heat. No reason to bother when you can pay $0.10 for more electricity than th...
How do odds work? Such as 9-1 odds in horse racing?	[ "I'll try to explain 9-1 odds like you're 5.\n\nYou're playing baseball with you're friend Dinah Soares. Dinah is really good at hitting home runs, and you are very jealous. She will hit 9 home runs before you even hit 1 home run. You have a third friend Sawyer B. Hind.\n\nSawyer is betting 3 Pokemon cards that YOU...
Why is the brain considered such a complex machine?	[ "You are currently processing crystal clear images of your surroundings, focusing on this post, reading squiggles and translating them into sounds, connecting those sounds into words forming sentences with meaning while simultaneously feeling your hand on your mouse, smelling the air, hearing and interpreting sound...
Why do some dogs/cats see and hear what is on the TV as if it is actually right there in front of them, and others don't even notice that the TV is there?	[ "The smarter animals ignore it because they know it is just a picture.\n\nThe dumb ones are fooled by the illusion.", "I've read they can't see CRTs, but with the newer LCD technology they can actually now \"watch\" the screen, before it was just like a strobe-light effect, so the chances of dogs noticing somethi...
Why does my computer act 'groggy' when I start it up?	[ "You might have a lot of background stuff like Steam, Skype, Spotify set to turn on when the computer goes up, you might wanna get CCleaner and check to see what starts up when you open your computer.", "windows does \"disk caching\" or something similar. \n\nit basically keeps track of which files you opened. an...
How are people able to mimic voices of other people? What controls ones ability to mimic voices? Can you train yourself to mimic voices?	[ "This question would be be answered by the great Robin Williams." ]
Why does a small splash of vinegar result in perfect poached eggs, where the absence of vinegar results in stringy nonsense	[ "The acid coagulates the proteins or whatever. \n\nUse fresh eggs, at least three or preferably four weeks from the use-by date. They hold together just fine and are a billion times nicer than something artificially held together with vinegar. \n\nI don't get poached eggs when I go out any more because they often ...
You couldn't kill bacteria with 102° water, so why does your body heat up while you're sick?	[ "The higher temperature boosts your body's immune system. It's more effective at higher temperatures. Of course, it's a fine balance, because above 105°, the heat starts causing serious brain damage.", "It doesn't incinerate the bacteria, but it does make life harder for them. It weakens them, without being so ho...
Why don't things burn instantly?	[ "It needs to heat up to the point where it has enough energy to combust. \n\nAlso not everything is very flammable", "For the instance you mention, it is because of an issue of needing to heat up. In the case of a log on a bonfire, it is because oxygen is being used too fast for the amount that is able to enter t...
How are pranks where people dress up like police officers legal? Is this not covered by laws against "impersonating an officer"?	[ "Impersonating an officer only applies when you attempt to use the power an officer has such as pulling over another car, detaining a person or trying to acquire goods or information. \n\nWith a prank, no harm is done. It's revealed that is it a prank shortly after and good times are had by all." ]
How did the ancient civilizations map out coastlines?	[ "They just estimated them, by sailing around and eyeballing distances. Take enough data and distances, and you can construct a decently accurate map of the coastline. Enough for navigation purposes, at least.", "How ancient are we talking?\n\nUsing a sextant and a compass you can get reasonably accurate positioni...
How to implement the pentatonic scale (or any type of scale for that matter) over a simple I-IV-V progression.	[ "A pentatonic scale fits nicely with all of those chords, so really you have the world at your fingertips when it comes to improvising over those chords using the pentatonic scale. When you want to hit a long note, try to chose one that is a note in the chord you are on at the moment, or maybe a 7th or a 9th (with ...
Why I can hear my dreams before I'm completely asleep?	[ "Don't worry about your sanity, you're experiencing hypnagogia, a very common part of the transitional state between waking and sleep. People experience a wide range of sensory phenomena, such as: random noises ranging from buzzing to random speech to explosions; visual effects like bright flashes, colorful speckle...
Why does more electronic storage cost more?	[ "In some cases, the manufacturing process is a lot more complex to make the item that has more storage, even if it isn't physically any bigger.\n\nIn other cases, they make many storage devices, all with the higher amount of storage. Some of them are faulty, and can't store as much as they're supposed to, so they g...
If a ninth planet exists and easily fits our readings and models, why haven't we found it yet?	[ "How do we notice most of the planets in our solar system? We observe them because light hits them and bounces back for us to see. The further away they are the harder they are to see, you get to Saturn and you can't see anything with the naked eye. Further out you need binoculars or a telescope to see them. In fac...
How are sex scenes in Hollywood movies produced?	[ "> The first thing to remember is that most scenes in most Hollywood movies are shot many, many times. So the romantic and/or dramatic sexual events you see on screen might have taken half an afternoon to record.\n\n > Also remember that you're seeing a scene that is carefully lit. There may be dozens of lights i...
Why do our noses run when we are cold	[ "You have small hairs inside your nose that are constantly doing the wave and pushing the snot back up your nose where it drains down your throat. These are cilia. When it's cold they say fuck this and quit working allowing gravity to do it's thing and make snot come out of your nose. \n\nBonus fact: your body p...
Why is the standard format for a rock band a 4 piece drums/bass/guitar/vocal? How and why did that happen?	[ "That comes from jazz music, where that combination of instruments is known as [the rhythm section](_URL_0_). In early New Orleans and Dixieland jazz (~1910s), trumpet/clarinet/trombone would playing the melody and countermelodies, the guitar/piano/banjo would play chords, the tuba/bass (aka upright bass) would pla...
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", "Hate to break it to you, but they don't, or at least there's no scientific proof that it does. It's an urban legend. \n\n_URL_1_\n\n_URL_2_\n\n_URL_0_" ]
Why hot drinks can be consumed comfortably, yet if any is split on the skin it can cause pain.	[ "ever got a blowjob? if not, put a finger in your mouth. your mouth is much warmer / hotter than your finger. so of course, your mouth wont suffer as much as your finger \$skin\$ from touching a hot drink. it's the other way around too: try to put an ice cube in your mouth and keep it there for more than 5\\-10 s...
Why do so many countries view ex-president George W Bush as a war criminal?	[ "Because he invaded a country the UN had not given permission to invade, based upon \"intelligence\" which wound up being entirely bogus. He then had hundreds of innocents \"detained on suspicion\" without trial, and many of them wound up being tortured, which is a war crime.", "A number of legal scholars (and so...
What is a private or "profit" prison, and how do they work?	[ "It's a prison that is run by an independent company. And they charge the government for performing that service", "Instead of the government hiring an official to run a prison, they hire a company. It's known as contracting-out a service or outsourcing. \n\nThey just call it a for-profit prison because the comp...
How is it possible to hang from something like an electric fence but only get electrocuted once you make contact with the ground?	[ "When they touch the ground, it completes a circuit that allows the electrical current to go through their body." ]
How do people who learned coding and programming think differently from people who have never done it?	[ "I think the biggest lesson in thinking differently comes from debugging. It really humbles you.\n\nA common scenario is going over the same piece of code that is creating a bug, but being absolutely certain that everything you wrote is correct. There is no bug in my code. The computer is messed up somehow is a t...
What's up with the CERN drama, What are they trying to do?	[ "What CERN drama? I can find nothing significant about CERN in the news. Are you sure you didn't find a five year old fear-mongering website about how \"oh the LHC will destroy the wooooorrrrlldddd!!!!1!\"", "It's business as usual. With the LHC, specifically, collisions are continuing at 13 TeV with 25 ns bunch ...
Pensacola, FL has white sand and clear water. Corpus Christi, TX has brown sand and murky brown water. How is there such a huge difference on the same body of water?	[ "Other posters are right in that the continental shelf of the western portion of the GOM is mostly mud/clay, meaning that most of the rivers dump muddy silt into the gulf, including the Mississippi River. The Gulf of Mexico churns counter clockwise bringing the muddy water down along the Texas coast. If you think C...
why does it take so long (years even) to get a citizenship in a foreign country?	[ "Because those countries want to limit the number of people who get the benefits of full citizenship. Making it take longer means taht fewer people will go through the process and the ones who do will really want it, or possibly be better in some way (more educated, have citizen family members, have a job)", "Be...
When a dog or a cat's owner changes clothes or wears something out of the ordinary, do they think the attire is part of your body or can they tell that clothes are just something that we put on top of our bodies?	[ "She probably realised you were the same person, but your hat scared or confused her.\n\nIt's hard to know what animals actually think, but whatever they do think, they get used to it. Animals go by more than just visual appearance, of course: smell, gait, voice -- all these are important. Your puppy can probably a...
Why are bad words "bad"?	[ "Detailed discussion of taboo topics like sex and dispelling of feces requires a specialized vocabulary. People are traditionally and unfortunately uncomfortable taboo topics (hence the \"taboo\"), so people used this specialized vocabulary to shock and surprise people in normal conversation. That's where it starts...
when a presidential candidate is "leading in the polls", how is this determined??	[ "Polls work by a company or group calling around to a number of people and getting their opinion and how they plan on voting.\n\n If the poll talks to 1000 and 470 of them say they are going to vote for candidate A, and 530 people say that are going to vote for Candidate B, than the polls will say that Candidate B...
The American healthcare system	[ "It depends on your insurance coverage. I recently had surgery and the final bill was around 70k. With my insurance I only owed 5k out of pocket. The rest was covered. Also hospitals will allow you to make installments. Also, if you have a low income you can apply to have your bill lowered or even free.", "Short ...
how this guy ran a marathon at age 95	[ "Your body rises to the level of care and use you put into it. Eat correctly, exercise regularly your entire life, and avoid any injuries, infections, or genetic issues that could mess you up. After that, its up to luck, and this guy has gotten pretty lucky." ]
How wireless charger work?	[ "The charger has a coil of wire that creates a magnetic field. That magnetic field induces an electric current in a separate coil of wire inside the device being charged, which charges the battery in the device.", "On a related question, how efficient is it, compared to the normal charger cord?" ]
Why are gingers hated?	[ "It has something to do with the belief that gingers- those with red hair, pale skin, and freckles- have no souls.", "A lot of people just don't find them visually appealing." ]
How are free withdrawal ATM machines profitable?	[ "ATMs are actually less costly for banks than withdrawals from human tellers. Remember when all ATMs were free Pepperidge Farm Remembers. \n\nEdit\nPrior to 1988, there was no surcharging of cardholders by ATM owners in the U.S. In 1988 Valley Bank of Nevada began surcharging \"foreign cardholders\" (meaning holder...
How can Scientology be considered a religion?	[ "There are certain things that are unique to Scientology as a religion: the whole \"pay as you go\" thing (people spend ungodly, no pun intended, amounts of money in order to learn more about their religion), Scientology is the only religion that has gone to legal (and extralegal) lengths in order to protect its in...
Why do we always see sketches of popular courts trials on news sites?	[ "Courtrooms don't always allow photography. Newspapers wanting an image will send an illustrator, instead.", "A lot of the time, the court doesn't allow cameras. \n \nQuick fact- One of Terry Crews' first jobs was a courtroom sketch artist." ]
Why is Africa so screwed up?	[ "[Found it!](_URL_0_)\n\nBy bkoatz:\nImagine Africa is a playground, where a bunch of different kids live all the time. You have one group by the swing set, another all the way on the other side by the basket ball courts, a third live on and around the stairs leading up to the school, and a fourth is by the bike ra...
How can Sasha Baron Cohen (Bruno, Ali-G, Borat, etc.) meet and film with important groups like the FBI when he is only going to make a joke of it?	[ "I heard that on the Ali G show, he would have someone else in a suit pretending they are going to do the interview and he just played one of the camera crew. When filming started he took over the questions and caught the people off guard." ]
Why can't I just hit the "Off" button on my computer rather than "Shut Down"	[ "+ Pressing shut down\n\nWill terminate all system and user processes normally. Exiting processes have time to write logs and results in the primary memory. Some of it can be important, but 95% of the time you won't notice a difference, if you are a casual home user and not involved in servers or programing project...
How did Anonymous CONTINUE to control @KuKluxKlanUSA for days?	[ "\"Twitter comes to the rescue of the KKK\" not good publicity.", "We're not talking about the Dallas Cowboys or Apple Computer here. The KKK as a whole doesn't exist. It's made up of several local groups with their own leadership structure and lots of infighting between them. KKK's don't have offices, organi...
If our heart is behind our ribcage, why can we feel it when we put our hand on our chest?	[ "You're not literally feeling your heart against your hand. But the heart is a very powerful muscle and its pumping action sends vibrations through the rib cage to the skin." ]
Why can't you put modern parts into the body of an antique car? I know it's very different, but why isn't it somehow possible to create a vehicle with custom parts in the same way you would create a PC?	[ "You can. Look at the hot rod world. Hot rods have a long history, especially in the USA but essentially its about taking an old car and equipping it with a modern drivetrain, suspension, brakes and so on. Rolled in to this is customising to make it look unique, or at least different.", "You could, but it would t...
What causes the Reddit phenomenon of [deleted] and subsequent chain of deleted comments?	[ "Typically when you see a ton of comments deleted it's because of a combination of user-removal and mod-removal. If two people get in an argument that either has nothing to do with the thread topic or becomes particularly nasty/abusive the mods will often delete the whole thing. Sometimes they'll just delete one pa...
How do modern aircraft "lose contact" with flight control?	[ "\"Lose contact\" is a very vague phrase that could mean just about anything, but it means one thing for sure: lots of page views for advertising.\n\nAir France AF447 \"lost contact\" - flight was out of radar coverage as is totally normal for that part if the world. In between check-ins with air traffic, poor dec...
Why is it some people hiccup when eating spicy foods?	[ "This happens to me too. I'm not entirely sure, but I do notice that if I make an effort to not inhale when swallowing I don't have a much of an issue. My guess is the tendency to inhale right as we are swallowing trying to cool off the food causes the problem." ]
How are the marines 240 years old when America is only 239 years old?	[ "The Revolutionary War started a year before the states formally declared independence. Originally the colonists' view was that they were loyal subjects of the King of Britain (who had chartered the colonies), but Parliament had no special power over them because, among other things, they had no votes in Parliamen...
(More) Questions from a grade 3/4 class!	[ "These are excellent questions! Your class is awesome. :) I'll tackle a few:\n\n#5. Who was the first person on Earth?\n\nHumans have been evolving for millions of years. Deciding who was the \"first\" human on Earth is very difficult, because evolution is so slow. It's like deciding when exactly a caterpillar ...
How did Hitler and the Nazi leaders justify the alliance with Japan when the Nazi party was so against non-Arian people?	[ "The Japanese were declared \"honorary Aryans\" or \"Master Race of the Orient\" (although it was pretty obvious that if Germany won, Hitler would have no qualms invading Japanese held territory). In fact, Hitler held the Japanese and Chinese in high regard because of their long history and achievements.", "I thi...
Do All the Planets in our Solar System Spin and/or Orbit in the Same Direction? Why?	[ "All planets in our solar system orbit in the same direction (counter clockwise if you look at it from the earth's northpole). This is becuase the planets (and sun) formed from one big disk of dust and debris that was spinning counter clockwise. Once the matter in the cloud clumped up to form planets and moons, the...
If keeping your heart rate up is good for you during exercise, is the same true of watching scary movies, playing video games, or other passive heart rate boosters?	[ "Heart rate increases due to exercise are healthier than heart rate increases due to terror (eg. watching a scary movie). Terror-based heart rate increases are accompanied by a spike in adrenaline, which can be damaging to your heart over time.", "When you are afraid, anxious, or stressed, the main causes of pass...

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