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Why is there a static sound when you unplug earphones from your device?
[ "When the headphone connector is all the way in, there are three metal contacts that line up with three metal contacts inside the device. As you slide the plug in or pull it out, the contacts touch the wrongs places briefly and cause a momentary short circuit. The short circuit causes the voltage to spike very bri...
[ "You plug it in the laptop via a USB port, and in the mobile phone via a micro USB port. This means you use two different ports on the powerbank as well. This decides if you're charging the bank or the device." ]
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit post:", "neg": "Represent the Reddit post:" }
why are u supposed to not ration water but ration food when you are stranded in the desert?
[ "Because you lose water through sweat, the minimum water intake is a hard minimum. You can go longer without eating because your body can turn to fat stores/muscle mass for energy." ]
[ "whats the point of hospitals if we are all going to die anyway" ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit sentence:", "neg": "Represent the Reddit sentence:" }
Why don't clubs have a 'house set' of high quality drums so bands don't need to carry their own space mongering set?
[ "Some clubs do. The problem is that these sets get a lot of use and hardly any maintenance, and so sound crap. It doesn't help that they're usually cheap to begin with. Whenever I've used a house set it's always been rubbish. Oh, and some drummers like crazy set ups with 18 cymbals and 4,231 toms and 3 kick drums ...
[ "Yea, I don't understand why concerts don't just use earbuds for their bass sounds. They are much cheaper and don't take up as much room." ]
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the sentence:", "neg": "Represent the sentence:" }
Why cant we order and buy new cars completely online, but are instead required to go to the dealership?
[ "Tesla cars can be bought online! Otherwise due to state laws and stuff for regular cars you must go to a dealership. Personally the best way that secured car purchases with me is go to Edmunds Tmv, get that price with the specs you priced and go to a dealership.'if they don't even match it or come close walk out a...
[ "Same reason we need any store, some people like to try things out before they buy it." ]
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit paragraph:", "neg": "Represent the Reddit paragraph:" }
With more People and less jobs, how will future generations all find employment?
[ "More people means more demand means more production and civil service jobs. It's always been this way. If one task is eventually automated, hopefully the excess workforce will be put to performing more complex tasks." ]
[ "Economics is the social science that analyzes the production, distribution, and consumption of goods and services. So it highly improves efficiency of mass production by analyzing it. The result is that we can feed 8 billion people globally instead of only 2 billion people. Without the Infrastructures that exist i...
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the answer:", "neg": "Represent the answer:" }
Why are crooked teeth considered so unattractive in the US?
[ "Attractiveness is generally determined by how symmetrical someone's features are. Crooked teeth destroy symmetry." ]
[ "Asian men are far less attractive to White women than Asian women are to White men." ]
eli5_question_answer
{ "query": "Represent the Reddit question:", "pos": "Represent the Reddit post:", "neg": "Represent the Reddit post:" }
How do we know that conservation of energy is a law? How have we proved that energy cannot be created or destroyed?
[ "A scientific law is simply a statement that holds up under repeated experimentation. The law of conservation of energy has held up with every experiment ever thrown at it across all parts of the universe we can observe. It is verifiable with math, measurements, and tests. Is it *possible* that it's wrong (or incom...
[ "Energy in an isolated system cannot be created or destroyed. It can change location and form, but that is it. So the energy in an isolated system can change from potential energy to kinetic energy to thermal energy, but the energy is always there." ]
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the sentence:", "neg": "Represent the sentence:" }
How does ISIS still exist and stay so strong although many nations have sent so much armed forces to hunt them down?
[ "Much of the action against ISIS has taken the form of air strikes, special forces actions, and more conventional actions. To be effective against a guerrilla force, you need to have a large number of troops constantly occupying their power base areas to prevent them from moving and resupplying, while building good...
[ "The US army is at war with the Talibans and the ISIS. So they send troops there to help fight these terrorist groups off" ]
eli5_question_answer
{ "query": "Represent the post about current affairs:", "pos": "Represent the passage about current affairs:", "neg": "Represent the passage:" }
Why does love hurt ?
[ "It's because you vest a degree of emotional trust and attachment to someone. Not only do you lose your love, but maybe your best friend too." ]
[ "Tough question, might as well ask: What is love?" ]
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document about Science:" }
Could I get a credit card and buy cheap items 1-3 times a month to build credit?
[ "Yes, this is what you do when you have no credit. Don't buy things you can't pay off right now though." ]
[ "It'll cost you upwards of $1000 a month. You might as well purchase a second hand one for ~5000$ and sell it or bring it back home when your six month period is completed." ]
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the document:", "neg": "Represent the document:" }
How does autofocus work in digital cameras? (particularly DSLRs)
[ "When not in live view mode, DSLRs and film SLRs use phase detection autofocus, which uses optical triangulation to determine the distance between the camera focal plane and the focus target. See [this page](_URL_0_) from Stanford for further details and a demonstration applet. Most other types of cameras, includin...
[ "The cameras are the ones with or without mirrors, and if they don't have a mirror they're not SLRs. Digital Single Lens Reflex cameras have an optical viewfinder which uses a mirror and other elements inside the body to look out through the lens. Mirrorless cameras don't have this mirror system, and instead simula...
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the text:", "neg": "Represent the text:" }
Why is it that new GPU's have to increase in size to become more powerful while CPU's have always stayed the same size?
[ "It is partly that GPUs create significantly more heat than CPUs. Most of the room a GPU takes up is fans or copper heat sinks." ]
[ "It kinda has (almost) doubled. The i7 920 has 731 million transistors whereas the i7 2600 has 1.16 billion of them. Source: _URL_0_ Just because the two chips have the same number of cores doesn't mean they have the same number of transistors. There are many factors at play, at the simplest, the cores can just be ...
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the argument:", "neg": "Represent the argument:" }
Why is it that dreams are so weird?
[ "Part of it is confirmation bias. You only remember the weird dreams and the not so weird dreams are just forgotten about." ]
[ "This is exactly what we are doing all the time. How are you thinking this is different...?" ]
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the document:", "neg": "Represent the document:" }
why the american corn taste different from middle eastern corn or Asian one?
[ "They differ in species, soil composition, environment, exposure to the sun. These all could effect the taste." ]
[ "well they are corn aren't they? Pop corn is just dried corn, heated until it pops. sorry i don't know any better way to explain it." ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why does urine feel hot after a workout?
[ "Your body heats up while working out, and your pee is inside of you initially. Your skin cools down relatively quickly, but your internal organs stay warm for a while. On top of that, your heat-sensing nerves sense the change in heat, meaning if you stay in a warm environment for a while, you'll get used to it eve...
[ "The blood vessels swell to allow heat to escape because you're too warm during and after your hot bath." ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why are so many seedless fruits available such as watermelon, but not avocados?
[ "*Most* fruits are not available seedless. In the example of watermelons, they have simply been bred to have very small, immature seeds. If you take an avocado and make its seed smaller, it'll still be a huge pit." ]
[ "The \"seed\" in a cherry is called a pit, and if I'm not mistaken, it's where the juicy part of the cherry came from. Similar to dates and plums. In contrast, the seeds of grapes and oranges are intended to produce more grapevines/orange trees" ]
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the document:", "neg": "Represent the document:" }
When DJ's 'scratch', what exactly are they doing? How do they turn that into a song?
[ "A vinyl record is one long groove etched into a disc. The different shapes of the groove vibrate the needle to make sounds as the record turns. You can stop the record at a specific point where there is a particular sound, such as a snare drum. Then if you move it back and forth while the needle is over that snare...
[ "Mixing and blending songs is not easy at all. I know now they have all sorts of computer programs that do it for you but back in the day, it was just 2 turntables and a few crates. Being able to seamlessly blend songs together is difficult it took me about a year before i was comfortable blending songs without sto...
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit answer:", "neg": "Represent the Reddit answer:" }
Why are chiropractors so controversial?
[ "Chiropractic's belief that you can heal almost all maladies by manipulating the spine has no scientific evidence behind it or even any plausibility. However, many modern chiropractors only partially believe in its claim and combine the manipulations with some sort of physiotherapy. That physiotherapy part sometime...
[ "When people kill people like that, they are severing the nerves in the persons spine. When a physical therapist dies it, they're \"cracking\" in the same way you crack your fingers. You'll notice I used \"Physical Therapist\" rather than \"Chiropractor\". Please avoid chiropractors. They're one step away from Snak...
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the document:", "neg": "Represent the document about Health and Anatomy:" }
Why does water evaporate faster outdoors than indoors?
[ "Yes, temperature. But also other factors, such as humidity and wind. _URL_0_ There are definitely less wind indoor, so that's a big factor. If you have a puddle in a small room, as the puddle evaporate, the room gets more humid, thus slowing slowing down the evaporation. In the outdoors, the humidity quickly dispe...
[ "Gasses dissolve more in colder water than hotter water. Solids on the other hand dissolve more in hot water than cold water." ]
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the document:", "neg": "Represent the document about Chemistry:" }
Why does being paid for sex suddenly become acceptable when there is a camera involved?
[ "Congratulations - you've found one of the million laws which base their legality on \"intent\" which is really impossible to prove..." ]
[ "It definitely says something about our culture. Not only do men have to pay more, but for the ladies, consider this saying: when you're not paying for a service there's a good chance you're the product being sold. It's meant to attract men this way." ]
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the argument:", "neg": "Represent the argument:" }
why do you have to "eject" USB drives before removing them from your computer?
[ "I'm fairly sure this gets asked a lot, so I'm going with Short Answer: your operating system doesn't always write changes to files right away. This is intentional and for performance reasons. Telling the computer to eject a device forces any pending changes to be written right now. Basically, it's a precaution." ...
[ "Take the hard drive out and put it in another computer." ]
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
How can someone incapable of speaking with a terrible stutter turn around and sing perfectly?
[ "The parts of the brain that control speech are different than the ones that control singing." ]
[ "Because she is incredibly dense. A mixture of her over-friendly non-Canadian Canadian joyfulness pings a bad ring with many people especially with a mix of how she talks about thinks like she knows about things but is sadly mistaken when put to the test. Also the very idea this woman could have been an American Vi...
eli5_question_answer
{ "query": "Represent the question about Music:", "pos": "Represent the document about Music:", "neg": "Represent the document:" }
How the average net worth per person in America is more than $301,000, yet more than 80% of Americans are in debt?
[ "There are some REALLY wealthy Americans who skew the numbers to a ludicrous degree. This is why average net worth isn't by itself a worthwhile statistic." ]
[ "You're only bankrupt if you can't make payments on your debts. Fortunately, $15 trillion in debt isn't that bad when your GDP is $15 trillion. Hell, I owe $100,000 on my house, and I only make $75,000. Does that mean I'm bankrupt, according to your logic?" ]
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the document:", "neg": "Represent the document:" }
Where does our head voice come from if it doesn't sound like our actual voice?
[ "The psychological theory of [bicameralism](_URL_0_) is controversial, but interesting nonetheless. It basically states that humans developed consciousness with an intermediary step -- bicameralism. This involved two parts of the brain communicating, one is talking to the other and telling it what to do. The author...
[ "I think I have the answer. When you are singing out of your falsetto, you are not using your diaphram as much as normal. This is also the reason why non vocally trained peoples voices crack when switching from falsetto to normal. There is a term that some singers use called chest and head voice. Your head voice is...
eli5_question_answer
{ "query": "Represent the Reddit query about Health and Wellness:", "pos": "Represent the Reddit answer about Health and Wellness:", "neg": "Represent the Reddit answer about Health and Wellness:" }
what happens if someone eats enough protein and some other nutrients but not enough calories?
[ "His reserves will be used to make up the difference. Initially this will be bloodsugar, next any excess body fat, and then his muscles will be converted to energy." ]
[ "Post the nutritional facts and the quantity you are eating if you want a real answer. But you are likely consuming too much sodium and carbohydrates while not getting all of the vitamins and minerals your body needs." ]
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
ELI: What determines which emergency vehicles arrive when a call comes in (traffic accident, medical incident, etc)?
[ "A lot of times they just send all of them if an emergency call comes in." ]
[ "Do you mean what do they do in a 911 dispatch center to send cops / ambulance / fire to you?" ]
eli5_question_answer
{ "query": "Represent the Reddit title about Telecommunications:", "pos": "Represent the Reddit sentence about Telecommunications:", "neg": "Represent the Reddit sentence:" }
If I dug a hole from the north pole to the south pole, would I fall halfway and then fly upwards for the second half?
[ "If you're digging the hole, there'd be no fall, since you'd already be down there... Just sayin. (Unless you climbed back out, only to jump into the hole)" ]
[ "It is currently not possible with today's technology. The core of the Earth is estimated to be as hot as the sun. And the pressure is far beyond anything we can make to stand up to. However, who knows what the future holds? Today's impossibility is tomorrow's routine. Fun fact for Douglas Adams fans: If we *could*...
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the argument:", "neg": "Represent the argument:" }
How do my electronics know what time it is, even after I turn them off for a few hours?
[ "Think about a digital wrist watch. It can keep time with one little battery for years. All your electronics need is a quartz oscillator and a chip and a little electricity. That's why if you turn on a computer even years after it was plugged in, it still has pretty accurate time." ]
[ "Turning the lights off uses no power. Turning them on uses almost no power, except for some fluorescent models where it can use up to 30 seconds of power. Short answer: turn them off, especially if you're likely to be gone for much more than a minute." ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why are the American presidential primary elections not riddled with voters registering with the opposite party and voting against the candidate most likely to beat their favorite?
[ "Nothing stops it, and registering for the opposing party in order to vote for the candidate that you think will win a nomination, but lose an election is not an unheard of thing. The major downside is that you remove your ability to vote for the candidate that you think is best suited to lead your own party's bid...
[ "The only people who want Hillary Clinton to win are Democrats. Republicans have every interest in spoiling her candidacy as it would be a shocking scandal that would hurt the democrats at large in the presidential race. [CNN is reporting that the Republicans are claiming credit for the Benghazi hearings as a polit...
eli5_question_answer
{ "query": "Represent the Reddit query about history:", "pos": "Represent the Reddit sentence about history:", "neg": "Represent the Reddit sentence:" }
Why did Sausage Party cost only $19 Million to make when movies like Finding Dory took $200 million?
[ "i assume actors wages become a factor. seth rogen for sausage party called in all his friends, who id guess didnt charge a lot. also the wages of the animators. pixar are the world leaders in computer animation so i assume they get a decent wage too." ]
[ "Jack and Jill - Production Budget - $79 million, Worldwide Box office - $149 million (3% rotten tomatoes) Blended - Production Budget $40 million, Worldwide Box office - $126 million (14% rotten tomatoes) Grown Ups 2 - Production Budget $80 million, Worldwide Box Office - $246 million (7% rotten tomatoes) Grown Up...
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the paragraph:", "neg": "Represent the paragraph:" }
The average bullet travels at 1700mph. So if you were to travel at 1700mph and simultaneously fire a bullet. What would happen?
[ "If you were to fire it forward, from the point of view of someone stood on the ground, the bullet would be now be travelling at 3400MPH. If you were to fire it backwards, the speed would cancel out and to someone stationary the bullet would drop harmlessly to the ground like a stone. **EDIT** [Relevant Mythbuste...
[ "Relative to the ground yes, provided you throw it in the direction you are moving. Relative to you no, it is traveling at 100mph. Relative to the sun it's probably closer to 67000mph" ]
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the text:", "neg": "Represent the text:" }
In popular TV Show Boston Legal, why do the lawyers from Crane,Pool and Schmidt always give their closing the last(2nd)?
[ "Artistic license. The same goes for some shows/movies when the lawyer in the middle of cross examination suddenly stops questioning and makes an argument to the jury. As an attorney for 20+ years, I've learned to suspend disbelief and grant a certain amount of artistic license." ]
[ "I once had a lawyer walk out of the prosecutor's office and say \"sorry, I forgot the law for a second, I cant really help you\" I would say a good lawyer knows the law." ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit post:", "neg": "Represent the Reddit post:" }
How does devaluing a currency "stimulate exports" in any real sense of the term? Doesn't the stimulation only occure because the exporters DON'T change their prices to account for their now weakend currency?
[ "Good question. I think you are just missing one point, the value on the Canadian side. The assumption would be that if the price does not change on the US side (ie. still $100 USD) then their buying behaviour wouldn't change. They would still buy the same amount of product. On the Canadian side of the transaction,...
[ "Borrowing money would not depreciate the currency. Think of basic market laws - the more of something, the less it's valued. If the US were to print more money, it would devalue the US dollar against many other currencies, which can be bad for any number of reasons - most importantly exports and imports." ]
eli5_question_answer
{ "query": "Represent the Reddit question:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document about Economics:" }
What's the difference between grey and gray? When should I use which? I've wondered for years.
[ "Usually, \"grey\" is the British/Commonwealth spelling (like adding the \"u\" in color/colour), while \"gray\" is the American spelling. I remember it by grey has an \"e\" for English and gray has an \"a\" for American." ]
[ "Very similar to how people also mix up their, there, and they're consistently. Took me until I was 22 years old to actually understand the difference between \"Then,\" and \"Than\" and even now I still get it wrong." ]
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the document:", "neg": "Represent the document:" }
or just explain normally] What is the history of Anonymous, LulzSec, and AntiSec?
[ "I can only talk about Anonymous because that's all I know. Anonymous started back in 2008 when a video emerged of Tom Cruise talking about Scientology. 4chan (where Anonymous originated from) got angry about this, and saw this as proof Scientology was nothing but a bad thing for people. Anonymous said that the Chu...
[ "Because then we would also have to add * Communism/socialism/Marxism * The speed of light * Black holes * How computers work * Monty Hall problem" ]
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the document:", "neg": "Represent the document:" }
Exactly what training does a dog so in order to became a service dog? What sets them apart from other dogs?
[ "Basically the desired traits of service dogs are good temperament, trainability, good health and physical structure. Hence why labs, golden retrievers and German Shepherds are the most common service dogs you will see. Any dog can be trained yes but not all breeds have all the desired traits. Imagine a chuiauia tr...
[ "Undoubtedly they are able to, there is just no interest in doing so." ]
eli5_question_answer
{ "query": "Represent the title about Text:", "pos": "Represent the document about Text:", "neg": "Represent the document:" }
How can there be negative decibels?
[ "It's not that simple, but there's a part of it that's actually very very simple. Sometimes we deal with extremely large numbers: millions, billions, trillions of billions. That gets tiresome, so a clever guy worked out how to make the numbers smaller, while still letting them be just as big. He invented the logari...
[ "I'm sorry if the answer is incorrect but my lecturer told me that it has to do with gender. Male: The stomach. Female: Buttocks." ]
eli5_question_answer
{ "query": "Represent the question about Science:", "pos": "Represent the post about Science:", "neg": "Represent the post:" }
behind the inside of a belly button?
[ "The blood vessels and urachus (where urine the fetus produced leaves through umbilical cord) atrophy and become different rudimentary, ligament-like attachments. They don't serve any function in an adult. In the fetus, the urachus connected to the bladder, the two umbilical arteries connected to the aorta, and the...
[ "Follow up question- how do people see me in the street: handsome mirror timaldinho or burn that photograph timaldinho?" ]
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the document:", "neg": "Represent the document:" }
why are native american rights/issues not even factoring in this election (or in any popular discourse)? even when immigration is such a hot topic discussed by the descendants of immigrants?
[ "/r/IndianCountry founder and mod reporting in. Actually, **Bernie Sanders** now makes a point to regularly mention Native American issues in his stump speeches. He courts the Native Vote, which can influence outcomes in some regions. Go ahead and search the Bernie subreddits for the words \"Native American\" and y...
[ "flip flopping isn't updating an opinion based on new information. flip flopping is saying different things to different electorate solely for the purpose of getting elected. how could mitt romney be for gay rights and abortion rights, and now be against gay marriage and strongly pro life? because in one race he wa...
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the sentence:", "neg": "Represent the sentence:" }
what do insects do during the winter and how do they come back every spring and summer?
[ "Some of them, having laid eggs that will not hatch/mature until spring, simply die. Others migrate. Butterflies are a common example. The rest hibernate." ]
[ "Here are a few ways to tell the two apart: 1. When butterflies land on something, their wings will be up vertically; moth wings will be flat horizontally 2. Butterflies are usually active during the day, while moths are more active at night There are some exceptions to this rule, but for the most part it works" ]
eli5_question_answer
{ "query": "Represent the Reddit question:", "pos": "Represent the Reddit sentence:", "neg": "Represent the Reddit sentence:" }
Can someone explain to me the monty hall dilemma? Why does switching doors give you a higher probability of winning?
[ "Imagine you have 100 doors, and there is a prize behind one. You pick one door and then 98 others are opened. The prize is either behind your door, or the other one that is unopened. Should you switch? Absolutely, because you had a 1/100 shot of guessing right with your first pick, and a 99/100 chance if you swit...
[ "No. Removing an option during the initial guess gives you a better shot in pure guessing. Instead of 1/4 you get 1/3 for example. The monty hall problem doesn't come into it at all. The monty hall is saying after guessing, if you have the chance of basically changing \"do you want to keep the one you chose, or swi...
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why do antidepressants take several weeks to "kick in"?
[ "After you take a drug, it starts getting eliminated from the body. When you take repeated doses before the drug is completely eliminated from your body, the concentration in your blood keeps increasing until you reach the desired \"steady state\", where there's a certain amount, and each time you take a dose, it r...
[ "It's thought they work by increasing levels of chemicals in the brain called neurotransmitters. Certain neurotransmitters, such as serotonin and noradrenaline, are linked to mood and emotion. While antidepressants can treat the symptoms of depression, they don't always address its causes." ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
How can we see the Milky Way if we are inside it?
[ "We are on one of the spiral arms, about two-thirds of the way out. [This image](_URL_0_) should do a good job of giving you an idea of where we are. When we \"see the Milky Way\", we're actually seeing the rest of it from our position in the galaxy. That is, we're seeing the centre. In that image I linked, imagin...
[ "If you were observing the earth from 65 million light years away right now then, in theory, yes. Practically speaking, the size of telescope required to observe something as small as a dinosaur from that far away would make it completely impossible." ]
eli5_question_answer
{ "query": "Represent the question about astronomy:", "pos": "Represent the argument about astronomy:", "neg": "Represent the argument about astronomy:" }
if outerspace is a vacuum what stops it from sucking up our atmosphere?
[ "The gravity of earth is stronger than the vacuum of space. One example of an element that is not, is helium. Its too light and after it has been released into the air, it rises and exits out atmosspere (which is why weather balloons use helium). The rest of the elements are too heavy ro escape without propulsion."...
[ "When a lot of stuff floats around it tends to group up... as those groups form they get more and more attracted to eachother. The more stuff there is the more gets attracted (gravety). Eventually there is so much stuff that the middle gets very hot! Everything there turns into this super dense ball. it keeps pulli...
eli5_question_answer
{ "query": "Represent the title about Physics:", "pos": "Represent the answer about Physics:", "neg": "Represent the answer:" }
Why must my college books cost so much? The entire system is corrupt. There is now way a hardcover book should cost $199.98, and I've even seen more expensive than that. There has got to be a way to stop this. I want to change this.. Can we find a way?
[ "Do you have a question you want explained like you're 5? Because all I see is a rant." ]
[ "The Libraries often do have the textbook, just not enough for everyone in the class. If I understand it correctly, UK university is more focused on lectures and what we would call in the US independent research. US university is more like high school on steroids, textbooks included. Also, many of the prices you're...
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit comment:", "neg": "Represent the Reddit comment:" }
Why does China defend North Korea so often at the international level?
[ "North Korea has one of the largest, if not the largest, deposits of rare earth elements in the world. These minerals are not only used in televisions and mobile devices, but missiles and advanced defense systems as well. Some estimate that there is $6 Trillion worth in North Korea. With China already having a mon...
[ "Russia does not have a good track record when it comes to telling the truth. Why start believing them now?" ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit text:", "neg": "Represent the Reddit text:" }
Why did the guitar become the go-to instrument for rock and the blues?
[ "I think it's because the guitar, and it's variations, are one of the few instruments you can sing with while playing. Try doing that with a saxophone or violin. Adding on to that, it's a fairly easy instrument to learn and allows for easy of movement and performance, so its an easy fit." ]
[ "Nirvana gets a lot of the credit for starting the \"grunge\" movement. What makes smells like teen spirit so different is it's grunge sound and lyrical content. This was the first mainstream song to sort of glorify angsty, awkward teenagers and give them a coherent voice. It probably rings less with you because so...
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the answer:", "neg": "Represent the answer:" }
Some ads say tooth enamel cannot be restored, but others claim their paste repairs it. Which is true?
[ "Tooth enamel that's gone is gone forever. Softened tooth enamel however can be chemically hardened to prevent it from being eaten away by further acid erosion." ]
[ "Exposed dentin causes sensitivity. If you don't take care of your teeth, the enamel erodes and decays. I'd recommend switching to a toothpaste and mouthwash designed for sensitive teeth. They have been shown to repair enamel." ]
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the comment:", "neg": "Represent the comment:" }
Now that nano engineering of carbon is becoming a reality, are there any other materials which the properties can be nano engineered?
[ "Realistically there are a lot of elements and molecules that can be produced on the nanoscale. The problem than comes from the property of the elements change drastically. One example being colloidal silver (nano particles of silver in solution) when silver is shrunk to the nano level it changes color to yellow an...
[ "They are incredibly small structures in the shape of tubes or pipes, made of various nano-scale components. They're used for pipes to transport other nano particles, or in electrical insulation and conduction. Some are very strong due to their shape and composition, far stronger than the same materials in a less o...
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the answer:", "neg": "Represent the answer:" }
If energy can't be created or destroyed, what happens to the energy during radioactive decay?
[ "The energy released comes from the nucleus undergoing a transition (decay) to a more energy efficient state. Since the new nucleus is more energy efficient, we'll end up with some spare energy. This is the energy that's released in form of radiation." ]
[ "If you fuse two Hydrogen atoms to produce a Helium atom, the Helium atom will weigh slightly less than two Hydrogen atoms. The missing mass became energy during fusion. The \"daughter products\" of a fission reaction will also weigh less than the original atoms; again, the lost mass became energy. There would be n...
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the argument:", "neg": "Represent the argument:" }
Why are some letters basically the same capital and lowercase (O, W, P) and some vastly different (G, E, Q)?
[ "Our alphabet is derived from the Latin alphabet. The Upper case is essential the Latin. The lower case alphabet is derived from the Latin through an intermediate font called Carolinian minuscule. This is a smaller font derived from the Latin alphabet designed to be easy to read and quick to write. Changes were mad...
[ "Imagine trying to read the word \"Ill\" (other word for sick) in Braille. Not easy. Other characters that are easy to confuse: E and F, O and Q, X and K, U and V. The Braille alphabet is designed to avoid these confusions." ]
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the paragraph:", "neg": "Represent the paragraph:" }
Tax brackets and how it affects tax returns
[ "Your coworkers likely don't know how tax brackets work. That's unfortunately common. Here's a basic example of how they work and how your coworkers think they work. Let's say income between $0 and $50,000 is taxed at 20% and income over $50,000 is taxed at 30% - So if you earn $40,000 you will pay $8000 in incom...
[ "The amount of taxes that come out depends on the amount of the paycheck. A higher paycheck means more taxes taken out." ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit post:", "neg": "Represent the Reddit post:" }
Why does breathing into a bag help when hyperventilating?
[ "When you hyperventilate your breathing pattern causes you to breath out too much carbon dioxide. (Your body doesn't really use it like it does oxygen, but it's adapted to it being there and requires it to be there in a certain concentration) If you breath in a closed environment the excess carbon dioxide you exhal...
[ "Inhaling deeply, or specifically mildly hyperventilating, can help you if you are about to engage in strenuous aerobic activity or holding your breath. It won't mean more \"focus\" though." ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit answer:", "neg": "Represent the Reddit answer:" }
Why do Dryer Sheets work so well at negating Static Cling?
[ "The dryer sheet has chemicals which are attracted to the electrically charged fibers; once a particle of fabric \"clings\" to a particle of the chemical, the two together have a neutral charge, so they won't cling to other fabric particles." ]
[ "Big trucks have Big engines. Big engines make lots of heat. All cars and trucks have a part called a Radiator. The Radiator is where all the heat from the Engine goes. The Radiator is put just inside the front of the Car or Truck so the air can take the heat away as the Car or Truck drives. Big Trucks have Big eng...
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit paragraph:", "neg": "Represent the Reddit paragraph:" }
Why Steam games are so cheap compared to Xbox and PS?
[ "Because of a wide distribution chain. You can set the monetary bar high on consoles because the people who buy then have no choice." ]
[ "Some games come to PC first and to consoles later (Diablo 3). Some games come to consoles first and PC later because the developers want to optimize the game more or add new features (GTA 5). Some games come to PC later because Sony and/or Microsoft will pay a developer to wait so that the first release of the gam...
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the answer:", "neg": "Represent the answer:" }
How did people in the Stone Age deal with diseases (viruses, bacteria, parasites)?
[ "> How did people in the Stone Age deal with diseases and mental disorders? They either got over it, lived with it, or died. People died a lot back then. > Wouldn't they have died out at a certain time? Individuals did but overall they reproduced more. > Considering countries today are very developed and still th...
[ "We don't. We get sick from contracting viral and bacterial infections." ]
eli5_question_answer
{ "query": "Represent the Reddit question:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
If we don't know when Jesus was born how did Christmas become a celebration?
[ "There are many December holidays that take place during this time, and December 25th was intentionally chosen to mimic them. Both to draw attention away from them, and make it easier for converts to switch over. Saturnalia, the Winter Solstice celebrations, and the birth day of Mithra, Mothers' Night, Yule, Yalda...
[ "It became more of a tradition than a religious day. Even in Europe where there is much much less christian, mostly everybody still celebrate Christmas, even a lot of Muslim celebrate it. For most people is not even associated with religion. Same reason why we don't work on Sundays." ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit argument:", "neg": "Represent the Reddit argument:" }
What is a half-life?
[ "Imagine it like this. Lets say a radioactive material exposes 100 units of 'energy' or 'danger'. This gets weaker with time. Half-time is the time it takes to half it, to 50. From there on, it takes the same amount of time to reduce to 25. 12.5, 6.75. It always gets reduced by 50%, but the time frame stays the sam...
[ "I read this as \"What is an erection?\"" ]
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the document:", "neg": "Represent the document:" }
Waist size vs pants size vs belt size.
[ "There is no standard for sizing. It only is *very roughly* related to your actual waist size. For example, a Levis 501 in 34 waist will fit quite differently from a Levis 511. Across different brands, it is much worse. I suggest you find a particular pair of pants that fit you nicely, and get others in the same s...
[ "It only takes account for height to weight ratio. Not muscle mass, or fat mass." ]
eli5_question_answer
{ "query": "Represent the Reddit question:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why can I control an erect penis with my muscles and not a flaccid one?
[ "You're actually controlling muscles at the base. You can control it flaccid, it's just nit as noticeable because the lack of rigidity." ]
[ "It is actually very rare for a penis to be perfectly straight. But as long as there is no pain, it's not a big deal. The slight curve usually is a result of the tissue in one particular area growing slightly more or less rapidly than the other areas during puberty. How much of a bend are we talking here? Are you ...
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit answer:", "neg": "Represent the Reddit answer:" }
What's the deal with hot-wiring cars and how has it changed over time with advances in technology?
[ "Traditionally cars operated on a pretty simple start up mechanism wherein a circuit was completed and the engine. As long as the circuit could be maintained then so could the car. This is actually still the primary principle however the safeguards to prevent a false start up are increased such as protecting from ...
[ "Right now I'd say that it's a toy, but as it improves, it'll become more useful for the average person. There was a point in time when cars, air travel, computers, and flush toilets were toys for rich people, now everyone uses them." ]
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the text:", "neg": "Represent the text:" }
what has happened to Cartoon Network?
[ "That's a really good question. I feel like adult swim is the only thing keeping them around. Ive found myself watching Boomerang more and more lately because they have more variety like old cartoon network used to have." ]
[ "What country? USA = End of the world Somalia = They won't even realize the power stopped working." ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
How come human infants are so helpless, compared to other mammal offsprings?
[ "One of the current theories is that it was evolutionarily favorable for human offspring to be born earlier in their cognitive development compared with other mammals so that their head would be small enough for a natural birth. Instead of the brain growing larger during pregnancy and the baby being born with more ...
[ "I believe it's because the mostly cute, cuddly animals are mammals. They're more like ourselves than snakes or lizards, etc. Also, because mammals are warm blooded they actually _like_ to cuddle (in general) because that's what mammalian mothers do with their own off-spring. Plus, they're just so damn cute!" ]
eli5_question_answer
{ "query": "Represent the title about biology:", "pos": "Represent the document about biology:", "neg": "Represent the document:" }
The process that got the number "65 million", when it comes to dinosaur extinction, and why the process can be trusted.
[ "The underlying science is based on dating various layers of rock found around the earth. (see [this wiki](_URL_0_)) Basically, scientists uses various methods to determine ranges for layers of rock that they find around the earth. These are then cross compared to come up with a basic timeline of large scale geogra...
[ "There are calculations based on the lifetimes of people mentioned specifically in the Old Testament that trace a continuous line right from the start of around 6000 years to now. So that's how old the earth is. But you have to believe in the absolutely literal interpretation of the Old Testament, that;s a relative...
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the document:", "neg": "Represent the document:" }
The Watergate scandal and why it brought down a president.
[ "There were offices in the Watergate complex in Washington DC. One of those offices was used by the Democratic party in the 1972 election. People working for people who worked for Nixon's Committee to Re-Elect the President (CREEP) broke into that office but were caught. Subsequently there was a coverup to attempt ...
[ "The Congress does the investigations, just like they did with Bill Clinton for over six years. This is the check on Executive power." ]
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the document:", "neg": "Represent the document:" }
Historically, what happens to people of country X who live in country Y, when X and Y go to war?
[ "Usually most civilians try to vacate. War is not always an overnight start, and people with a strong survival instinct try to book it. Otherwise they could have thier lives leveraged as a negotiation tactic, put in internment camps, or just plain be casualties of hate crimes. Thats just scratching the surface of w...
[ "Just *because* they can control it. No country wants to cut away a constituent part of it so long as it can still be managed without negative consequences. Apart from controlling a ton of people in Tibet and gaining access to what resources it has, it also also allows China to keep an eye on the rest of Central an...
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the post:", "neg": "Represent the post:" }
Why do we want to survive?
[ "This question is sort of breaking into the realm of philosophy, but from the standpoint of natural selection, organisms with a natural impetus to survive are more likely to survive, reproduce, and pass those traits onto their offspring. It's just as true for humans as it is for any other living thing." ]
[ "In the real world why would anyone want to be a politician?" ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
How do coroners identify a body during an autopsy?
[ "If police series are relatively accurate, there are a few ways this can happen. 1) The body has some sort of identification on them (drivers license, passport,...) 2) Using specific body traits, like dental records, fingerprints, DNA, traceable implants,... But these require them being in a database. 3) Someone re...
[ "What i want to say: All-You-Can-Eat Ribs... By the Dumpster buuuuut the real answer is. That depends on a number of factors including: Any health-related issues suffered by the patient. Whether or not the limb may need to be preserved for additional medical testing or as evidence in a criminal case. The personal ...
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the document:", "neg": "Represent the document:" }
In games like Fallout and Skyrim ; why does fast travel always work outside but not once I go inside a building?
[ "To prevent you from going into a dungeon, completing the quest objective, and fast travelling out of there. It means you have to complete the dungeon before leaving. Add to that the fact that all the game checks for is a flag on the cell/module that says it's indoors, and you also can't travel from Breezehome to ...
[ "Yes, that's exactly what it is doing. The open world is split in to sections, and only the section the player is close to is loaded. You notice if you die in open world games it will take a bit of time to load the area you respawn in." ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why is subtraction so much more difficult than addition?
[ "**Psychologically, we are \"programmed\" to accumulate rather than divest. As such, we start with accumulating and then learn to take away. Algorithmically, i.e., arithmetically, there is no difference.**" ]
[ "Those are not super mathematicians, but people who are good with multiplying numbers. Math is about so much more than being able to do that and the more complex it gets the less numbers you see." ]
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the document:", "neg": "Represent the document:" }
How does your tongue heal automatically after it gets burnt from hot food?
[ "Heals automatically...it takes me 2-3 days for my tounge to stop hurting when it gets burned" ]
[ "Your taste bud is getting inflamed because it was likely damaged, such as when you bite your tongue, eating something sharp, or something too hot for your mouth." ]
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the document:", "neg": "Represent the document:" }
How comes games for consoles lack mod support that their pc versions have?
[ "Modding a game generally goes against the policies that developers have to agree to to get their games on the console. Making a game moddable generally opens up possibilities for exploits that enable piracy and unwanted use of the system. On top of that, games for consoles are very streamlined and made to be perfe...
[ "Windows is the computer operating system with the larges installation base so it is naturally that games are primary developed for windows and mac, linux in second case. The support for games are good on all platforms. If they are available the are often identical. Look for example on steam for mac and linux games...
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the document:", "neg": "Represent the document:" }
Why didn't coffee evolve the same way as tea, with everyone using little one-use bags of grinds just like tea?
[ "Yes, it is a taste issue, but coffee bags do exist. They're just not as good as other methods of coffee making, although they are better than instant." ]
[ "Instant coffee is basically the refined aftermath of filtering coffee in giant batches. Instant coffee is made by taking a giant bunch of coffee brewed in a fairly regular fashion in a factory, and dehydrating it in massive amounts. Boiling out all of the water, so that only the filter coffee's chemicals remain wi...
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Can charge from lightning rods be converted to usable electricity, and if so why don't we do it (that I've heard of)?
[ "The main problem with lightning is that it happens so quickly. A bolt of lightning can strike and transfer all of its energy in mere fractions of a second... and then it's over. We currently don't have any technology that can effectively capture that kind of power (without damage) in that short amount of time. Eac...
[ "It would be enormously expensive and cost way more energy to produce, transport, install, and repair the panels than they'd actually generate. Solar's come leaps and bounds, but just like you don't build a hydroelectric power plant in every river or just throw up a wind turbine everywhere there's a field. If you d...
eli5_question_answer
{ "query": "Represent the Reddit title about Physics:", "pos": "Represent the Reddit passage about Physics:", "neg": "Represent the Reddit passage:" }
Why is it illegal to feed or provide necessities to the homeless in certain areas/states/cities?
[ "It's not like it's against the law to give your leftovers to a beggar when you leave a restaurant. What's illegal is setting up a large-scale food distribution scheme and going around feeding dozens/hundreds of people **without getting food service permits**. Once you start feeding large numbers of people, you're ...
[ "It's illegal in a huge number of jurisdictions already. Where do you live?" ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit comment:", "neg": "Represent the Reddit comment:" }
Why do people learn differently, i.e, by hearing, by visual, and by touching?
[ "They don't. It's just an old myth. > There have been systematic studies of the effectiveness of learning styles that have consistently found either no evidence or very weak evidence to support the hypothesis that matching or “meshing” material in the appropriate format to an individual’s learning style is selecti...
[ "The human brain is infinite in its variation. Some people respond most emotionally to their auditory senses (like music), some to their visual senses (like art), some to olfactory senses (smell), some to written language (reading), some to kinesthetics (body movement). And this is mediated through their life exper...
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
When you get tan/sunburnt, why do you mainly peel on your shoulders and rarely your legs?
[ "Because your shoulders are more aimed towards the sun than your legs, which are kind of at an angle, and soak up a greater proportion of UV rays. If you laid on your back all day facing the sun, your legs and chest would then burn a lot more than your shoulders would. Imagine pointing a torch straight down at the ...
[ "The stuff that makes your skin dark (it's called melanine) stops you getting burnt. Your birthmark is darker (more melanin) and so it won't get as burnt as the pale skin around it. imagine it like putting a big spot of sunscreen in the middle of your back then sunbathing" ]
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the argument:", "neg": "Represent the argument about Science:" }
Christmas. How did it originate and how did it come to be what it is today?
[ "The History Channel has a great show they play like 100 times in December that shows the origins of all the current Christmas traditions (Santa Claus, Christmas Tree, Gift Giving, etc.) It's amazing how relatively new most of them are. You should really check it out..." ]
[ "So when and where did playing cards as we know them come into being anyways?" ]
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the document:", "neg": "Represent the document:" }
How does the processor know what to do with input and code?
[ "> How does the machine even know what to do with programming code? Inside the Central Processing Unit are millions of transistors. These transistors are grouped together to build logic gates - simple electric circuits that can do things with binary 1s and 0s, like determine if Bit 1 AND Bit 2 are both set to 1, fo...
[ "It doesn't. Its stored the same in memory. Its up to the code that interprets the 65 to know that its an A." ]
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the paragraph:", "neg": "Represent the paragraph:" }
Why does my car have a spare tire, but not a spare battery?
[ "Your spare battery would go dead as well. You can't have a spare car battery sitting in a car for years without it dying while a spare tire will last a long time without compromise" ]
[ "That tire is smaller than your other tires and now you are causing damage to your suspension. It is also more likely not as thick as a regular tire causing it to be less reliable. Dude you can buy a used tire for like $30 quit being an unsafe cheapass and just buy a fucking tire, you are ruining your car." ]
eli5_question_answer
{ "query": "Represent the Reddit post:", "pos": "Represent the Reddit sentence:", "neg": "Represent the Reddit sentence:" }
;Why is it so easy to doze off during the day after(or at) work or class,but downright impossible at night?
[ "Probably because you have the variation your PER1 gene expression (part of the gene group that controls circadian rhythm) that makes you a night owl rather than early bird / day lark. In prehistoric times, you would have been the one of the people watching over the village at night, keeping your family safe from p...
[ "To anyone here trying to reply, I think the gist of the question is, why can I lounge around the weekend without eating, but when I have an exam on Monday, I feel like I'm starving at 11 am?" ]
eli5_question_answer
{ "query": "Represent the Reddit title about Sleep and fatigue:", "pos": "Represent the Reddit post about Sleep and fatigue:", "neg": "Represent the Reddit post about Health:" }
How does first past the post voting work, and what other voting methods are there?
[ "In First Past The Post voting, for every election, each constituency elects exactly one representative for some body. It literally becomes a winner-takes-all thing for each kind of election. For instance if you live in a State that has a 30 seat parliament, then there would be 30 districts and in each district, on...
[ "It's because of the \"first past the post\" method of determining the winner. Whoever gets the most votes wins, rather than the candidate having to secure a simple majority of 50% plus one. Third parties end up skewing the results and acting as \"spoilers\". There have been successful third parties — the Republica...
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
How does it work when someone wins a new home from a television show?
[ "They will probably end up having to sell the home. Since they didn't pay for the home, and instead received it as a gift, the home is considered income. If the home is worth 250k dollars(average price of a home in the US), then they owe taxes on all of that which is about 57k dollars for a married couple, before d...
[ "What if you want a printed version of what was said?" ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why aren't half dollar and dollar coins in greater circulation in the US, and why don't we have larger coin denominations in general (i.e. a $2 coin)?
[ "No one I know likes to carry around coins, especially 20 dollars worth of larger dollar-sized coins. Bills are lighter and take up less space." ]
[ "Non-circulating legal tender (NCLT) coins are never intended to circulate as cash money but they include a denomination as a fail-safe of sorts so that should the world economy collapse and silver becomes worth less than $5.00 per ounce (for example) then at least this item's value is backed by a treasury for $20....
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the comment:", "neg": "Represent the comment:" }
Why do prisms split apart the different colors of light, but lenses don't?
[ "Lenses do too. The phenomenon is called chromatic aberration. Good lenses, like camera lenses, have corrective doublet elements glued to them to compensate for the effect. If you have high index eyeglasses, you can see the effect by looking at a thick black line on white paper. It will be blue on one side and red ...
[ "It is called chromatic aberration and it is from the lens of the camera used to take the picture. You now how a prism used to split light will bend light different angles depending on its wavelength? The lens does that too, just the effect is attempted to be minimized." ]
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the argument:", "neg": "Represent the argument about Science:" }
How does my car radio can display the song that it's currently being broadcasting.
[ "It uses the [Radio Data System (RDS)](_URL_0_). Basically the data is intermixed with the other data on the signal, but the radio knows how to read it and display it to you." ]
[ "The phone knows what it's playing it out the speaker and is able to subtract that from what comes in the mic" ]
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the passage:", "neg": "Represent the passage:" }
What does defragging your hard drive actually do?
[ "So when you delete something from your hard drive, really all you've done is removed a pointer in the computer that tells it \"hey there is something here.\" Subsequently, when new files are added, it sees that space as available, and writes into it. Sometimes, the space being written into does not match the space...
[ "Memory in a computer does not get deleted. Memory refers to the physical hardware that stores data, there are several different types of memory, RAM, HDD, cache, SSD. I assume that you didn't mean what you asked, could you please elaborate." ]
eli5_question_answer
{ "query": "Represent the Reddit question:", "pos": "Represent the Reddit passage:", "neg": "Represent the Reddit passage:" }
Why would a drug dealer mix a powerful opioid and deadly drug (fentanyl) with heroin, rather than a weaker substance, knowing that it could negatively impact future business?
[ "Because it's extremely addictive and powerful so will give the impression that their product is much better value. If you find a heroin dealer selling the same amount at about the same price, and it seems much stronger, of course that's what people will keep going back to. As if heroin wasn't already strong and ad...
[ "For a good while American doctors were heavily pressured and outright bribed at times into playing fast and loose with their opioid prescriptions. The company that created Oxycontin even went so far to claim that it was a a low risk way to deal with pain due to practically no chance of addiction. This was obviousl...
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the document:", "neg": "Represent the document:" }
Why does the word 'unisex' mean both sexes?
[ "From what I read from Oxford, it's not \"uni\" meaning \"one,\" it's uni as short for universal (or united)." ]
[ "I don't really know the answer to either of those questions, but \"people who are their birth gender\" could be put as cisgendered." ]
eli5_question_answer
{ "query": "Represent the question:", "pos": "Represent the document:", "neg": "Represent the document:" }
How does a car engine (or any engine) works, and what is the difference between a turbo charger and a super charger?
[ "Turbochargers and superchargers are basically the same thing: air compressors. In a turbocharger, the compressor impeller is spun using exhaust gasses that are being pushed out of the engine. In a supercharger, the compressor is spun using a belt and pulley mounted on the front of the engine. The idea behind thes...
[ "The main difference is that a gas engine produces the power by igniting the gasoline vapor - literally the \"spark plug\" is used for this. It gets its power from the battery which is continually kept charged by the alternator in the car (which gets its energy by being connected to the rotating shaft by a belt). ...
eli5_question_answer
{ "query": "Represent the Reddit question:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why didn't our taste buds evolve to make healthy foods taste good?
[ "fatty foods are high in calories. you need ALOT of calories to survive. you need relatively few vitamins to survive." ]
[ "We've evolved in environments where sugar and salt were no where near as abundant as they are today, and because they're so vital for our survival we've evolved to enjoy the taste of them in order to make us want to eat them to get the nutrition we need(ed). Now, there's a bit of a mismatch because of how readily ...
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the document:", "neg": "Represent the document about Food and Beverage:" }
Why is the shower curtain rod in hotels bowed out?
[ "Because shower curtains tend to get pulled inward when you're taking a shower thanks to the hot air inside the shower rising and creating a zone of reduced pressure. To keep the curtain from getting annoyingly close, the rod is bowed outward." ]
[ "Can you take some more pictures? Specifically, down the \"tubing\" from both angles and flipped over from how it is? I am specifically curious about how the metal is folded over." ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why does citrus taste so bad after brushing my teeth?
[ "You tongue can detect different tastes. It detects salty, sweet, sour, bitter and umami. When you brush your teeth, the toothpaste becomes foamy. The foam is made by a chemical called sodium lauryl sulphate (SLS). SLS makes lots of foam and bubbles that make your teeth feel clean. SLS makes your sweet taste buds s...
[ "Bacteria eats sugar and poops acid into your mouth which burns your teeth. Brush and floss and see a dentist." ]
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
How come dogs shiver even though when you cuddle with them, they're super warm?
[ "My parents' poodle has had the shakes before -- the vet said it was because he was really anxious and stressed out. This happened while my parents were on vacation and I was dog-sitting. My friend had a dog - I think a terrier - and when he got older, he started to shake/tremble whenever he was sitting (hind legs ...
[ "Dogs don't have an unconditional love for us. You ever have your dog continually drop a ball at your feet and then start to claw at you when you don't do anything? Your dog is annoyed with you because you aren't playing a game of fetch with it. Ever have a dog grumble when you touch it while it's sleeping? It's be...
eli5_question_answer
{ "query": "Represent the post:", "pos": "Represent the sentence:", "neg": "Represent the sentence:" }
The difference between Rap and Hip-Hop
[ "Hip hop is a culture. Rapping is an element of that culture." ]
[ "Rap started in the East Coast, in the streets on New York. It started out by people coming out of the Funk movement, and doing more spoken word stuff. New York then started to have more Criminal Rappers which changed rap into what it is today. Once news got to the West Coast about rapping, rappers over there start...
eli5_question_answer
{ "query": "Represent the Reddit question:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why don't we have cones at high concentrations throughout our whole retina, not just the fovea?
[ "Because evolution isn't out to make a perfect biological machine. Only make a biological machine that works for the pressures put against it right now. It it figuratively the kid who doesn't want to be in school doing just barely enough work to get that D and pass the class." ]
[ "As you probably know, your eyes have rods and cones that receive light. The cones pick up color, but the rods are highly light sensitive (and don't see color). Your cones are bunched in the middle of your eye (opposite your pupils) while the rods are lining around the cones. Long story short: you are looking at th...
eli5_question_answer
{ "query": "Represent the title about Science:", "pos": "Represent the document about Science:", "neg": "Represent the document about Physics:" }
Why doesn't the FBI (or any criminal investigative service) immediately shut down any illegal streaming service (or pirating) upon finding it?
[ "Most of the time these sites originate outside of the US, therefore outside their jurisdictional area." ]
[ "My question on this that probably goes along with the OP is how is it these companies can claim \"ownership\" and why cant we at a consumer level, just claim our own domain name?" ]
eli5_question_answer
{ "query": "Represent the Reddit query:", "pos": "Represent the Reddit document:", "neg": "Represent the Reddit document:" }
Why does the US have a rule that no President can do more than two terms?
[ "George Washington was revered by Americans after commanding us to victory in our revolution. He could have been president for life, or something like a king, but chose to serve two terms and retire. This was an American tradition, until Franklin Delano Roosevelt, who served three terms and won a fourth, but passed...
[ "It's not about how many times you have run, it is about how many terms you have served. You can only serve two terms as president, and in the case of succession, like an assassination, the cutoff for deciding whether or not a term has been completed is two years. If the VP becomes president the day after halfway t...
eli5_question_answer
{ "query": "Represent the query:", "pos": "Represent the post:", "neg": "Represent the post:" }
How did we figure out what each of our organs do?
[ "Partially by luck or accident and partially by careful observation. Like, if there was a machine in your basement that was constantly running, and one day it stopped, and the house got really cold, you could probably figure out that it was responsible for heating the place. Or, if you got curious, and inspected th...
[ "What color is the skin of most of the people who make and utilize those drawings? Theres your answer" ]
eli5_question_answer
{ "query": "Represent the title:", "pos": "Represent the sentence:", "neg": "Represent the sentence:" }
Why do things physically hurt more when we are cold?
[ "Your body is filed with thermoreceptors to detect the temperature. You have 2 main thermoreceptors for cold: regular cold thermoreceptors and extreme cold thermoreceptors. The second one, extreme cold, sends pain signals to your brain. So when it's cold and something hurts you, your brain is getting 2 different pa...
[ "Extreme weather is an example of stress on your body, which likely results in a sour temperament. This is similar to why you feel cranky when you are in pain." ]
eli5_question_answer
{ "query": "Represent the Reddit title:", "pos": "Represent the Reddit argument:", "neg": "Represent the Reddit argument:" }