Subset (10)

eli5 · 25k rows

Split (1)

train · 25k rows

query stringlengths 20 300	positive listlengths 1 1	negative listlengths 1 1
How fast would someone have to move to not be seen moving?	[ "Digital video recorders usually have higher frame rates now, but traditionally 24 fps is the standard. So it looks like the kid would have to travel about 10 meters in less than 1/24 = 0.04 seconds, or about 240 m/s (540 mph). Although in that case he may show up for a fraction of a single frame. In order to not s...	[ "> I don’t even know if this question makes any sense I’m just curious. It makes sense in that I understand what you're asking, but it doesn't make sense in that it's a meaningless question; it has no answer. A photon is always traveling at c in all reference frames, and to measure the passage of time, that can't b...
Why do high and low tides change at different times and places? Why do we need tide tables?	[ "Because tides are effectively caused by the gravitational pull of the moon. The moon can only be over a single point on Earth at any given time, so the gravitational pull will be different for the rest of the planet." ]	[ "U.S. sales taxes are VERY Complicated. We don't have a national sales tax that applies evenly across the board. Sales tax goes down to the state, county, and even local levels. The tax you pay in one store could be completely different to the tax you pay in the store across the street in extreme circumstances. Plu...
How did the PS4 and Xbox One end up with nearly identical technical specifications?	[ "They're not exactly alike. I believe the PS4 has a slightly better graphics card and the XBox One comes with a Kinect that can be used with games and to make hd video conference calls. Also, developers have to be able to easily port their games across both platforms, so the hardware has to be similar." ]	[ "Thank you for your submission! Unfortunately, your submission has been removed for the following reason(s): You can find the basic answer with a google / wiki search. Please start there and come back with a more specific question. If you disagree with this decision, please send a [message to the moderators.](_URL...
How does Sherlock Holmes's science of deduction works?	[ "It doesn't work. Sherlock Holmes isn't real; he's just a character people like to write stories about. Nobody could do what he does." ]	[ "I wrote a detailed response about Tom Holland's documentary [here](_URL_0_), using primary source to argue that something very similar to modern Islam did exist quite early on. Also worth noting that Crone and Cook's Hagarism thesis is not taken seriously anymore (or even at the time) - it literally used only th...
After 9/11 and the war on terror was launched. How was America able to enter(invade?) Pakistan, Iraq ect. Set up camps and start shooting without starting a full blown war?	[ "It's really amazing how cooperative a country can be when you dangle billions of dollars in front of their faces." ]	[ "One way is to word everything as a question. So if your headline reads \"Is Kim Kardashian a Hobbit?\" then nobody can sue you because, hey, you're just asking questions. Another strategy is to use so-called weasel words. Instead of saying \"Kim Kardashian is a Hobbit\", you say \"Some people have claimed Kim was...
During WW2 there was an 'Indian Legion' fighting alongside the Germans. How were they recruited, how much action did they see, and what ultimately became of them?	[ "You might find this [post](_URL_0_) by /u/drylaw interesting" ]	[ "Yer not alone in askin', and kind strangers have explained: 1. [ELI5: Why there seems to be so much rape in India ](_URL_3_) 1. [ELI5: Why is there so much gang raping in India? ](_URL_0_) 1. [ELI5: Why are there so many men raping women in india? ](_URL_5_) 1. [ELI5 INDIA: Why is there so much rape in India????? ...
How reliable is a D-Dimer blood test?	[ "The D-dimer test is looking for breakdown products of blood clots called, you guessed it, d-dimers. In normal blood there should be no detectable d-dimer at all. The issue with the test is that it has extremely reliable negative results, but a positive result does not always mean that something is wrong. So if yo...	[ "This is a more scientific answer than it sounds: it's all in your head. Try having a friend hold a pen there randomly half of the time. You guess when it's there, the more you guess the closer to chance you should get." ]
Why can't you touch a halogen bulb?	[ "The oil on your hands creates a hot spot on the bulb. It won't immediately break, but that spot is getting a lot hotter than any other part of the bulb, so its under a lot more stress. The bulb weakens into a more crystaline form, and can potentially form a bubble, leading to an explosion. You should always try to...	[ "Here is the [sun's emission spectrum]( _URL_0_) ( yellow is upper atmosphere, red is ground level). Here is the [transmission spectrum of common glass]( _URL_1_). Comparing the two, you see that glass is very good at letting light from the sun pass through. When you put a plant indoors, however, you are lim...
Why do my shoes squeak when they are wet?	[ "In dry conditions the difference between dynamic and static friction are not that far apart. The sole of a shoe will transition between the two regimes (stick to slip) rather gradually. In wet conditions a large difference between static and dynamic friction develops. When static friction breaks into dynamic fric...	[ "> I mean whether you put your left earphone on your right ear or vice versa. I still hear the same thing. Not at all. If you have stereo sound on, and a train is coming from left of your screen to the right, the left earphone will play the sound louder." ]
Where did the trend of using different variations of "555" and "0123" on television and in movies come from?	[ "The 555 block of numbers is nonexistent which means it will never be a real number. This is done because of cases like Jenny (867-5309) where it would lead to people calling those numbers for the hell of it and annoying someone unlucky to have a number that was used in popculture. I'm not sure if it was done as a...	[ "In general when planning new communities, they leave gaps in the numbers if there is a possibility of new houses being constructed between existing houses later on. If you have 100 right next to 102, and there are a few acres for new development between them, then you have to add 100a, 100b, and so on, which is me...
How do plants like lemon trees and chilli bushes hope to spread their seeds and multiply?	[ "Capsaicin does not affect birds. Hotness in Capsicum plants actually helps them spread their seeds because it makes them unpleasant for mammals, but still tasty for birds. Moreover, you should keep in mind that the fruits you bring up are human-made cultivars, and they are often very different from their wild ance...	[ "To add a concrete example to what's already been stated: [The Sahara desert fertilizes the Amazon rainforest.](_URL_0_) Equatorial trade winds carry mineral dust (carbonates and oxides, mostly) from the Bodele depression in the Sahara to South America, significantly increasing the productivity of the Amazon basin....
Why does it feel like you're punching under water when you're fighting in your dreams?	[ "From one of the last time this was asked _URL_0_" ]	[ "To add to what /u/hiearthpeople said, cetaceans sleep in a pod with one eye open. They all swim in a circle, and the eye that is facing the outside of the circle corresponds to the opposite side of their brain. That means they swim clockwise and counterclockwise depending on what hemisphere of the brain they are r...
Why are we just learning about Michael Jackson's child porn and animal torture collection now? Shouldn't he have been charged for that stuff a long time ago?	[ "Because its not child porn or animal torture, its just a bunch of art books and the like that you could buy at Barnes & Noble. Basically, anything with a nude picture in it was used as 'pornography'. It was all legal." ]	[ "Two things: 1) Your suggestion probably contributes. People expect Trump to say ridiculous and offensive things. Media loves playing to expectations because people like having their personal biases confirmed. 2) It probably helped that Bush and Kerry were in opposing parties. There is a built in opposition to Tru...
Why is it that overall 2014 was the warmest on record, but most of North America, and other regions of the globe, were colder than normal ?	[ "Was it really a cold year for NA, or was it just colder than the last decade? In the mountains near where I live there are old pictures of people ice skating on a particular lake, it hasn't had ice thick enough for that for at least the 15 years that I've known it." ]	[ "Point a flashlight at the wall and turn it on. See the small circle? Now, let's say your flashlight is delivering xyz power to the wall. So xyz power is landing in that circle, right? Tilt the flashlight in any direction. The circle spreads out across the wall doesn't it? But you didn't change the batteries or any...
Do CO2 levels go up in the northern hemisphere during the winter when there is no plant growth?	[ "Yes, CO2 levels do rise during the northern winter and fall during the northern summer." ]	[ "> but in any basic science class one learns that solid ice has a greater volume than water; wouldn't melting the polar ice caps lower the sea level? In any basic science class you should also learn that ice displaces the same volume of water as it would as a liquid, the rest extends above the surface. So theoretic...
How can money from bank accounts disappear and get untraceable when getting phished or scammed?	[ "well, there're plenty of ways to do it, BUT you should NEVER try this. for example, you cannot reverse OR cancel cash wire transfer. also, it is untraceable, especially when it's international. what's Done is done. no backsies. there's ways to do it locally too, but i'd rather not go into that. couch cashing...	[ "In really simple terms, it's when you do something the program has no idea how to respond to. In a perfect program this would never happen, but no program is perfect. So for example if you glitch through the wall in a game, the game doesn't really know that you shouldn't be able to do that because maybe you did it...
How come there is not a standardized power outlet plug that every country uses?	[ "And which style of outlet should the entire world adopt? _URL_0_ It would take a substantial amount of money for a nation to swtich over all its outlets, and the benefit isn't sufficient enough to justify the cost, especially when adapters are a much more cost-effective work-around solution." ]	[ "I believe it is due to successive governments being afraid to upset voters. The Daily Mail brigade would have a field-day. Completing the transfer to all-metric would also need a lot of money to replace or alter every speed limit sign and road sign showing distances, which 'we' have decided we don't have the mone...
Can we construct regular polyhedra of arbitrary number of faces?	[ "> Can we construct regular polyhedra of arbitrary number of faces? No, your procedure doesn't yield regular polyhedra except for a few special cases. > I was wondering what would happen if one constrains an arbitrary number of repulsive points to the surface of a sphere. Would they find a steady state? This is a...	[ "I'm sorry to be terse, but if you google \"algorithms for congressional districts\" you will find a large number of results that answer your question pretty directly. Different algorithms that could be used and the pros and cons associated with each. The moral of the story is basically, yes, you can. None of the ...
How romanticised is the 50s USA in comparison to how it actually was?	[ "Could you be a little more specific with your question? Its not clear to me where, how, and why the 50's are being romanticized. There's a lot of dystopian views of the 50's in media - for example, lots of eerie post apocalyptic games and TV shows frequently have a 50's backdrop. Some famous examples include the F...	[ "This submission has been removed because it is [soapboxing](_URL_1_.), [promoting a political agenda, or moralizing](_URL_0_). We don't allow content that does these things because they are detrimental to unbiased and academic discussion of history." ]
Is it possible for us to engineer grass that grows to the perfect length, and then stops? Thus eliminating the need for cutting it.	[ "It's not grass but an alternative that doesn't need to be cut is having a [clover lawn](_URL_0_)" ]	[ "Cost, safety which is a component of cost, and the reception of the consumer to having to order and pay in some kind of interface when a large group of people can't even figure out credit card terminals at the grocery store. Additionally, wherever the food comes out you'd have to make sure it got I the right perso...
How do movies hide the reflection of cameras or crew from an actor's eyes when doing a close-up?	[ "Usually a movie set is relatively brightly lit while everything else is in as close to total darkness as possible. This acts to reduce the amount of light which can bounce off them, then off things on the set in order to be visible to the camera. Also eyes just really aren't that reflective. Look closely at your e...	[ "You're actually modeling a spaceship going relativistic speeds (and at that rate of compression, pretty close to the speed of light), where time passes slow on the ship compared to on the earth. Your question is the same as \"if there was some means of instantaneous communication, what would the people on the ship...
How do power extenders work?	[ "To understand this, it helps to understand the difference between series and parallel wiring. A power strip is wired in parallel, meaning that each outlet will receive (almost) as much power as the main outlet in the wall. There may be a tiny drop in voltage due to resistance or added circuitry, but not much." ]	[ "The majority of smoke detectors I've owned were wired in to the houses electrical supply, and just use batteries as backup." ]
How was Mongolia so big and significant back in the days, but now they are like nothing?	[ "Genghis Khan was able to unite multiple nomadic warrior tribes that had previously been constantly fighting. With this united army, he and his immensely skilled army (who had pioneered the ability to shoot arrows on horseback) conquered essentially all of Asia and into Europe. Unfortunately, after Genghis Khan, th...	[ "Hi, I've approved the post, but just a note to you and potential respondents: this subreddit has a 20-year rule against discussing current events, so any answers will have to cut off at 1997. If you're looking for answers that can include 1998-2012, do consider x-posting elsewhere, eg. a foreign affairs sub like /...
What is vision like for animals with eyes that face directly away from each other (i.e. fish, some birds)?	[ "They have a much bigger field of vision than we do, and the brain seamlessly glues the whole thing together into one big picture. It's like they can see almost all the way around their body. Great for animals that get hunted. You can see this with your own eyes, because they don't completely overlap. With two eyes...	[ "The V formation greatly boosts the efficiency and range of flying birds, particularly over long migratory routes.All the birds except the first fly in the upwash (Upward motion of air) from the wingtip vortices ( whirlwind ) of the bird ahead. The upwash assists each bird in supporting its own weight in flight, in...
Prior to 1944, was Ukraine a part of Russia?	[ "The name \"Ukraine\" has been used since the 16th-17th centuries if not earlier. During Soviet rule, most lands of the former Russian Empire were divided into \"republics\" (like states in the US but with borders based on locations of ethnic groups), and Ukraine was one such republic while Russia was another. The...	[ "Hi, I've approved the post, but just a note to you and potential respondents: this subreddit has a 20-year rule against discussing current events, so any answers will have to cut off at 1997. If you're looking for answers that can include 1998-2012, do consider x-posting elsewhere, eg. a foreign affairs sub like /...
How can someone survive a 3500ft fall and expect to make a full recovery?	[ "The article says the parachute malfuctioned, not that it didn't open at all. The full story is that the parachute partially opened and that she hit the ground at 50 mph instead of terminal velocity. Also, she landed in a way in which her legs absorbed the power of the fall." ]	[ "Most of the time the people who go to these places are either already successful or some kind of athlete. The majority of the people you are talking about already have a lot of money to finance these trips. The alternative is usually some kind of athlete like the ones you see on YouTube doing extreme sports (base ...
Why is there turkey bacon but no chicken bacon?	[ "Bacon is, by definition, strips of cured meat from the belly of a pig. Turkeys aren't pigs, so there's actually no such thing as turkey bacon. Turkey bacon is pseudo-bacon. It is an abomination." ]	[ "[The Straight Dope covered this](_URL_0_). Basically, they started out as being made by two different production teams, but after a certain point, they became essentially interchangeable, but they kept both names going." ]
If I were to leave my fully charged laptop turned off and unplugged for five years, could I still start it up on battery only?	[ "Most likely not. All batteries suffer from a phenomenon called \"self discharge\", which is the slow reduction of capacity when a battery is not in use. Rechargeable batteries have higher self discharge rates than non-rechargeable batteries. Lithium ion batteries that are used in laptops and many other mobile devi...	[ "The biggest dependent here is how humid it is outside, if you are in Georgia where the air is really humid. You are just opening the window to more humidity. If you are in Arizona, it will dry out quickly." ]
Why are there torrent uploaders who seem like this is their full time job with thousands of uploads. What do they gain by doing this?	[ "Maybe we can pull in /u/gallowboob and ask him why (in a metaphorical sense, as he is \"the karma whore\") ;)" ]	[ "Cooked something really nice? Show it. Lost a few/lot of extra pounds? Show your transformation off. Have kids that make you feel proud to be their parents? Show why you are. Have cats that you love? Sure why not, just show it, people love animals. People like to show others things that they are proud of." ]
Why, if you travel north you'll eventually travel south, but if you travel east you'll never travel west.	[ "It's because of how we define directions. North and south are defined as being in the direction of the Earth's poles. Thus they must converge at the poles. Meanwhile, east and west are defined as circles that wrap around the globe and are parallel to each other. You could conceivably make longitude lines parallel...	[ "Imagine you are made of genetic soup. Some people have ingredients that just don't go well together and make the soup taste bad. But that's ok, because when you have a kid, we just take some of my soup and some of my wife's soup and pour it in together. So even though my soup has some bad ingredients, her ingredie...
How smartphone cameras are made. They have "large 1.5-micron pixels"? How do they place so many in a small area? How are they wired?	[ "1.5 microns is actually pretty large these days. Computer chips have features as small as around 14nanometers (1000 nanometers to a micron). You make these circuits using very specialized processing techniques, but basically you take a crystal of silicon (or gallium arsenide) and make small circuits on the surface...	[ "[This is what paper looks like](_URL_0_) under a microscope. When you write on it, your pencil or pen leave crumbs of graphite, or smears of ink goo, on those fibers. [This is what an eraser looks like](_URL_1_) under a microscope. It's typically rubber, with some fine sand particles in it, and acts much like sand...
Why do hot liquids seem to cool down more quickly when you blow on them?	[ "Cooling due to evaporation is influenced by the rate of airflow over the surface. Flowing air keeps the concentration of water vapour above the coffee lower than it would be in still air. This is the same effect that causes your skin to feel cooler and dry faster when drying off in front of a fan than in still air...	[ "The front of the fan is basically like the skinny end of a funnel, concentrating the air and accelerating it out at a higher pressure. The air behind the fan is drawn from a large area of still air behind the fan." ]
Why do chefs use crocs instead of shoes?	[ "Several reasons, not the least of which being they're extremely comfortable when you have to stand on your feet 8/10/12 hours a day. Some others: They have good grip, and they're not affected by water. Restaurant kitchen floors are often wet and slippery. They also have good ventilation. Frequently kitchens are ve...	[ "Imma answer your question, but first let me tell you about this time I watered the lawn on a warm july afternoon, there were clouds in the sky and childrens laughter.... ok seriously, who knows, maybe they just like to hear themselves type, or create an emotional connection to the recipe, perhaps they are just kil...
Could tardigrades survive on Mars?	[ "Survive for how long and to what end? They can survive extreme environments because they're so simple that freezing them solid or exposing them to a hard vacuum doesn't cause significant damage, but they're not really moving, eating, and reproducing under such conditions. There's also no source of food on Mars, ...	[ "Would depend on what the weather is like and how big the methane lakes are. Not sure but interesting question." ]
Why can't robots press the ReCaptcha button?	[ "They can if there is only a button. But if there is an image AIs cannot reliably recognize what they are yet. But that tech is advancing." ]	[ "[There have been many devices made that have large touchscreens.](_URL_0_) In fact, I've used a couple of them before. You don't see larger tablets because they're more expensive to produce, and inconvenient to carry around. With regards to an absolute limit - I'm not sure exactly what this would be. But is far la...
why when I go to sleep with a FULL stomach (ie Thanksgiving Night) I wake up STARVING! However, when I go to sleep with an empty stomach I wake up with a normal appetite or none at all?	[ "The guys talking about insulin are closest. When you eat, your blood sugar rises. Insulin is released to force the sugar out of the blood and into storage (into fat cells or to restore muscle glycogen). Your body tries to keep normal insulin range of about 90-110. After your body is done getting the sugar out of y...	[ "If you watch squirrels around late autumn, you'll see that they get pretty fat. The animals will eat tons of food (A lot of it has been food they've stored up) before the hibernation season. These animals then experience a rapid slow down in their metabolism to help them to be able to live off of their fat deposit...
how do cash machine companies make a profit (UK)	[ "I'd imagine their money would come from selling and setting up the machines initially, and then from advertising (some receipts have adverts on the back). But that's just a guess on my part" ]	[ "I've always wondered this too. I know for sure they get money from the ads on their page because of the amount of viewers coming in each day. I've also heard that its by the number of views per video or total subscribers. That I'm not to sure about tho." ]
Why were AA batteries generally always paired?	[ "Your hunch is correct. Two AA alkaline batteries in series provide 3 volts when fresh, which is a very common voltage for modern CMOS circuits. It is generally possible to generate higher voltages from a single AA battery, but that has penalties in terms of efficiency and the size of the circuit." ]	[ "Presumably to provide bracing to prevent [racking](_URL_1_). Here's a cute little [flash animation](_URL_0_) to explain the concept." ]
What is nuclear winter? And, how exactly does detonating numerous nuclear weapons ultimately result in a nuclear winter?	[ "Lots of bombs throw lots of material into the air. Some of that material is so fine it can stay in the upper atmosphere for a long time, years even. That material reflects light coming from the sun before it hits the ground, thus making the earth beneath it colder and darker. That's a nuclear winter. Should be poi...	[ "NaCl going into solution is endothermic, so, even as it depresses the freezing point, it also absorbs heat, lowering the temperature, and allowing the ice/snow to refreeze. It's similar to how ice cream was made by hand in the old days. The tub of the ice cream maker was filled with ice and salt, this caused the t...
Would somebody be able to swim in Mercury and if so what would it feel like?	[ "Mercury is much more dense than water. A person would easily float at the top, but it would difficult to move around in. Although there would need to be serious protection keeping the mercury from seeping into the person's skin and causing horrible problems." ]	[ "This video created by Vsauce 3 (Jake Roper) does a very good job explaining this: _URL_1_ I hope this answers your question. He also did another video on a simmilar line of - could you survive: _URL_0_" ]
If protein is required to gain muscle, how do animals like cows get the meat we eat?	[ "By consuming protein. Grass has protein in it; humans just can't process it, while ruminants (like cows) can. Or they get fed concentrated feeds, like soy, that helps them bulk up even faster and cheaper." ]	[ "Kevin Richardson aka \"The Lion Whisperer\" answered a similar question after a journalist was mauled by a lion on a safari. You can see the video [here](_URL_0_). Although he is referring to lions in a camp, the premise is the same. Animals who live in close proximity to humans become comfortable around humans an...
Can having autoimmune disease history in your family increase your chances of developing it?	[ "Having certain genes can predispose you to having an autoimmune condition. It is not as clear-cut as, say, sickle cell anemia, which is autosomal recessive (two copies of the gene -- > you get the disease no matter what). Many autoimmune diseases have certain HLA types associated with them (HLA B27, HLA DQ4, for e...	[ "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...
why do Christians venerate the cross so much?isn't it, in its original form, a tool of torture?is there just something fundamental that I'm missing?	[ "To Christianity, the cross is a symbol of Jesus' sacrifice of himself to redeem mankind of their sins and to allow humans into heaven. The idea is that Jesus willingly chose to suffer for all of mankind, and the cross is a symbol of the sacrifice and not a symbol of the suffering." ]	[ "It's pretty simple, really: Microsoft [adopted TNR as a default system font](_URL_0_) in Windows in 1992. Windows achieved remarkable dominance — it still holds more than a 90% share of [the desktop OS market](_URL_1_) — and Microsoft Office achieved similar success in the productivity software market. So essentia...
Heavy element atoms are scattered by supernovae, so how come gold and silver end up in lumps in the Earth?	[ "Elements like gold like to attach itself to other elements and can be extracted from the minerals that are formed from those compounds such as the [Carlin Gold Deposits](_URL_0_). When they come in nugget form, it is formed in veins that have water percolating through them. Basically it is much like the white stuf...	[ "The general assumption is that it would just pass through. It's actually visible with telescopes too ! The [bullet cluster](_URL_0_) is the most famous example of this behavior. What is displayed here is in red is \"usual matter\" (galaxies, gasses, ...) while in blue is what is thought to be dark matter (inferred...
How did 'old English' develop into present english?	[ "Language evolves over time. It doesn’t just become a new language out of nowhere. (Not usually, anyway) The rules of grammar and vocabulary changed. New words were used; older ones stopped being used. We found ways of expressing things that were better or just different. We misused words until they stuck. We dropp...	[ "From what I've read they ate a lot more rough course foods. Chewing things that are hard scrape our teeth for us kind of like it does for other animals. The problem for our modern teeth is we eat a lot of soft refined foods and a lot of sugar. That stuff just sits there and gets stuck which causes tooth decay." ]
Why does Russia's bombing campaign in Syria appear to be more effective than ours, even though we've been at it for months?	[ "The Russian attacks are well coordinated with troops on the ground (Syrian Army, Syrian volunteers, Hezbollah and Iranian Rev. Guards), whereas the US coalition strikes are mainly hitting IS targets in isolation. There is some coordination with Kurdish YPG and presumably with the CIA backed rebels, but that's smal...	[ "One thing to point out is the terrain. Iraq is in the populous parts of the country pretty flat, with a semi good road network across the country making it easy to move people around, and larger cities and towns to organize around. Afghanistan is some of the most inhospitable terrain on earth. With little nation...
Is it known how much of an ethnic footprint the Romans left in Britain?	[ "You've got to be careful about how you use the word \"ethnic\". Strictly speaking, ethnicity is about social groups and culture including language, religion, art and so on. There is no doubt that they left a large footprint, founding many of the major cities, building widespread public works, and hiding coins in f...	[ "There is a good deal of room for fresh responses to this question. But I briefly summarised the main controversies [in an earlier thread here](_URL_0_). The short answer is that we have no certainties about this at all, only a lot of supposition and a certain amount of reasonable deduction. Even the discovery of f...
Regarding huge sculptures like Mount Rushmore, how can the artist keep track of what image they are trying to make over such a huge scale?	[ "Small models. If you go to Mount Rushmore or the Crazy Horse memorial they have the scale model on display that the artists used for planning purposes. These models are perfect replicas of what's going to get built, but at a small scale that you can actually walk around. By taking measurements off these models and...	[ "It is usually because of not being trained in music. When I say training, I don't mean being taught by maestro from Italy, but as in listening to music and being familiar with notes' \"place\". It's like being able to speak in an accent you are familiar with, but not being able to speak in another accent that you ...
Why does volcanic ash stay up for so long? Isn’t it relatively heavy?	[ "Yes it is, being pulverised rock. And the larger particles fall fairly quickly, but the really fine stuff is light enough that air currents (like the hot air above the magma/lava) can keep it aloft, and the winds can carry it." ]	[ "When sorting posts by 'hot' time is taken into account when ranking them. To see the posts with the most upvotes independent of time sort by 'top'. To more directly answer your question they slowly drop down as the time factor in the equation of their rankings increases." ]
Were Indian attacks as much of an issue for settlers as Western Movies would have you believe?	[ "Yes and no. We must understand that, as with everything Hollywood, Indian attacks in cinema are often stylized and over the top. They were brutal as far as men killing other men was during that time period (although they introduced a few novel rituals like scalping). However, I feel like a large majority of these ...	[ "Immigration was first regulated on a mass scale in [1892](_URL_1_), when the requirement to be registered at Ellis Island was created. Immediately illegal immigration came into existence. The term \"wop\" for Italian-Americans derives from [\"without papers\"](_URL_0_) and dates from 1908. \"Wetback\" for Mexican-...
Why does blood clot if you remain motionless?	[ "Blood is 2 parts; plasma (mostly water) and cells (mostly red blood cells). In the plasma there are some proteins called 'clotting factors'. Now, when the flow is normal, the lining of vessels prevents the cells from contacting with it, thus not clotting (because one way of forming clots is damaged vessels). I...	[ "Our brains didn't evolve with cars in mind. They evolved with, like, being hunted by a jaguar (or whatever) in mind. So your brain doesn't know what to do with a car. It thinks hey, we're sitting, our body's not really doing anything physical, there's very little activity or stimulus... this seems like a good time...
Is there a practical application of the fact that there are distinct degrees of infinity?	[ "Yes and no. For example: in science and engineering, one of the most important mathematical tools we have is calculus. Calculus relies on certain properties of the real/complex numbers, for example you cannot define a derivative as a limit if you are using the integers (which are countably infinite) because the ep...	[ "Experimental Pharmacologist, infectious disease. If taught med students on this. Its fairly standard in theory but in practice some tend to ignore the guidelines. The theory is, you use as much information as you can to predict; Sepsis with skin infection - mostly likely gram + 50-60% chance of S. aureus, 5-10% St...
What makes anyone feel confident that there is life elsewhere?	[ "What we're finding is that the ingredients for life - liquid water, amino acids, free oxygen - are in lots of places, along with a source of constant agitation (for example, the tidal effects of Jupiter on its moons), which could, over a long enough time, jumble everything together enough times that it finds jus...	[ "_URL_0_ They used a statistical method to estimate how many species probably should exist on Earth, and compared this to how many we're found so far. We are still finding many new species every year." ]
How do water based migratory animals make it thru the dead zone in the gulf of mexico to spawn up in the Mississippi river	[ "The wikipedia article mentions that it is \"caused by 'excessive nutrient pollution from human activities coupled with other factors that deplete the oxygen required to support most marine life in bottom and near-bottom water.'\" One could suppose that this means that water closer to the surface has higher lev...	[ "Because the pipeline crosses most of the east coast, and is the means by which several states get their fuel, while the leak only happened to be in Alabama, any leak along the entire pipeline shuts the whole thing down for as long as the repair takes." ]
Why doesn't water boil in a hot oven?	[ "The heat in the oven is more homogeneous than on a stove. The water is changing phase, but there's no 'rolling boil' because there are no bubbles of steam rising from the bottom." ]	[ "It would certainly create short circuits - routes which the electric current could flow, through the water, where it's not intended that an electric current should flow. But electric currents like to follow the easiest route to complete a circuit. And the easiest part for the current to flow, from one part of the ...
How far away from a television would you have to sit before the sound started lagging behind the picture?	[ "Audio latency becomes noticeable at about 30ms. This is generally the high end of acceptable latencies for audio recording monitors. The speed of sound at sea level, dry air, at 20 degrees C is about 342 m/s. That means you have to be sitting 10 meters away, or about 34 feet. Intuitively, this makes sense to me -...	[ "Fast internet and faster servers. Human reaction times are on the order of 100ms or so. Ping time, which is round-trip packet flight time is often on the order of half that or so. Round trip is therefore on the order of human reaction if you give the server a little time to do stuff. Also, the server only sends b...
Why does the hair on your arms stand up when we get goosebumps?	[ "The hairs stand up due to arrector pili muscles in your skin forcing them upward. This is because our ancestors were much hairier all over, and for animals with lots of hair, if you are cold, making the hair stand up creates a trap for air, making less moving air touch your skin. This in turn keeps you warmer, as ...	[ "There's still water vapor in the sky when there are no visible clouds. With a sudden shift in air pressure, the water may condense and create droplets that fall and may freeze to become hail. (Note that this is speculation, though not mine. The effect is considered by many not to exist and even those who do believ...
Why do some animals seem to have no voluntary control of their bowel movements?	[ "It's not so much that they don't have control.. it's more like you say.. they don't care. They absolutely have control as is demonstrated more by male animals than females. Male horses, donkeys, cattle, and so forth, typically make \"dung piles\" and defecate in the same place all the time. Some female animals wil...	[ "> Or are there poop particles in my nose? Yep. Lots of stuff is volatile. That is, some of it turns into a gas and floats around. Lots of stuff has volatile stuff in it. There are a bunch of different sensors in your nose that are triggered by different chemicals in the air." ]
Why did the Australopithecus become extinct?	[ "Of all of the primate human ancestors it could be said that they met one or a combination of three fates: * Evolve and occupy a separate niche which does not compete with what became human * Interbreed with what became human * Compete for resources and lose against what became human In other words they either foug...	[ "While we have specialists in the field here, /r/AskAnthropology is more directly suited to questions of this sort, so I would suggest you X-post there!" ]
Why do some furniture creak at night?	[ "Objects expand and contract as temperature and humidity change. The climate in your home changes from day to night." ]	[ "Do you ever repetitively click a pen? Or jingle the change in your pocket? Or chew your nails? Or throw a baseball with a friend or your kid? Or play with a stress ball? Or... Or... or... or... Why do people do those things? I think you're right that you're probably over thinking it and it's just a toy." ]
How does Chinese water torture work?	[ "Isn’t that the dripping on your head? If so it’s just you go crazy from the continuous noise and the feeling eventually makes your head stop working but you just go loony" ]	[ "It doesn't. Scientific studies on neuro-linguistic programming have shown it to have no effect. _URL_0_" ]
Alright scholars of Arab Scientific Literature: is there any English translation (or a translation into any Romance language) of al-Khwarizmi's Mafātīḥ al-ʿulūm?	[ "C. E. Bosworth, in \"A Pioneer Arabic Encyclopedia of the Sciences: Al Khwārizmi's Keys of the Sciences\", Isis 54 (1963) 97-111, at 105 n. 20, 109 n. 32, and 111 n.37 reports that Eilhard Wiedemann published German translations of several sections on regulating irrigation, water-pumps, the postal service, weigh...	[ "Much of modern cryptography derives its security from the factorization problem (The RSA algorithm being the prime example). Basically it boils down to the fact that it's relatively easy to multiply two very large prime numbers together, but very hard to recover those primes from the results. If I recall things c...
How are companies like Tesla allowed to use Tesla's name without getting permission from him?	[ "Tesla never married or had children and has no close living relatives in the US, so there is no US estate to claim rights to the name." ]	[ "The works are in the public domain. Anyone, even you or me, could publish a complete Shakespeare and reap any profits. Not that there would be many, because everyone who wants one already has a complete Shakespeare, but you could do it." ]
Tell me about SSL, VPNs and ports.	[ "VPN stands for Virtual Private Network. Using a VPN allows your computer to pretend that it's part of a different network. This \"different network\" could be anything from another part of the internet, allowing you to pretend that you're in a different country, to a private network at an office, allowing you to s...	[ "Because the technology was in it's infancy in 2014. Deep packet inspection was just being pioneered by the Chinese. Once it became possible to record your every website click the first ones to do it were the NSA. But now that shit's commercial and cheap enough and intelligent enough to make life really suck if y...
Why is AC transmission used more than DC transmission for high voltages?	[ "When you're transmitting electricity over a long distance you want to do so at a very high voltage. Power losses are proportional to current squared, so you want as little current as possible. Using high voltage means you can use less current. AC has the advantage here because it is very easy to change its voltage...	[ "Unless the CD was mastered woefully badly, you're always better off getting a CD than any compressed music (such as iTunes, or using Amazon's auto-rip). There's an off-chance that a badly-mastered CD will be worse quality than a properly-mastered AAC file (or whatever compressed audio you get), but it's not very l...
Where exactly does the LHC get protons?	[ "From a bottle of hydrogen gas (if you Google it, there are pictures). To accelerate a beam of particles, you have to make them electrically charged. You can either create ions by stripping electrons off the atoms, or adding extra electrons to them. Both techniques are used at various accelerator facilities. For th...	[ "They use magnetic fields to keep it away from normal matter. _URL_0_" ]
Why CPU clock speeds havent seen major increase even tough we made major improvements on nm scale?	[ "You cannot cheat physics. Every CPU has a clock that lets it synchronize its internal workings. The higher the clock the more operations can the proccesing unit perform in a unit of time. This value cannot be infinite because of propagation delay, which is time a logic gate needs to \"open\" and \"close\". If the...	[ "> If 90-100% of people wanted meth-with its known negative effects-legalized how can the government still refuse? Because, in our government, the citizens do not have the power to actually enact such measures, except through Constitutional Amendments directly (and even that is a weird process that we've never real...
Why do corks become wider on the bottom than on the top after uncorking a bottle. If anything, shouldn't the top be wider as some material was pushed to the sides by he cork screw?	[ "Because the cork takes up evaporating water from the wine. Because IN the bottle, relative humidity is always ~100%, the cork will be more or less saturated at the bottom. On the upper end, the cork is exposed to the ambient atmosphere, where humidity is normaly lower than 100%. So on the upper end, the cork will ...	[ "A common misconception about thrust is that the thrust pushes against the ground, and that's what pushes the rocket up. But imagine you tape a balloon to a straw, and thread a string through the straw, and tie that string up horizontally. Inflate the balloon and let it go, and you'll see it rocket horizontally wit...
If you only dream during REM sleep and it usually takes about 90 minutes or so to get to REM, why do I still have dreams during 20-minute naps?	[ "> If you only dream during REM sleep False pretense. You can dream during all sleep cycles. [second paragraph](_URL_0_)" ]	[ "Two social psychological concepts come to mind here. State dependent memory encoding and Erickson Arousal theory of learning. State dependent learning states that what ever state of mind you are in during encoding is the state of mind where recall would be optimal. Erickson arousal theory states that learning is m...
how do slot machines work?	[ "Modern slot machines are entirely computer driven. When you pull the arm/press the button, the outcome is determined from a programmed odds table and all the spinning stuff on the screen is purely for show." ]	[ "Penn & Teller: Bullshit! did a show on this, its very worth a watch, they break it down quite well and understandable. [Link to the full episode](_URL_0_) on youtube. Warning, NSFW language and boobies in like the first 2 seconds, because its Penn & Teller and thats what they do" ]
It seems that many modern Christians are not fond of Halloween. One of my history teachers said that this is because it is the only major holiday that the church failed to "Christianize." Is there any truth to this?	[ "Hello everyone, Unfortunately, we have already had to remove a number of poor quality responses in this thread, including many asking about the deleted comments, which merely compound the issue. Please, before you attempt answer the question, keep in mind [our rules](_URL_7_) concerning in-depth and comprehensive...	[ "Korean man married to an adopted Korean woman, removed from family as a result here. The way my father explained it to me, it has to do with the reason why someone would put up a child for adoption in the first place. Generally, poor families or unprotected premarital sex are reasons why someone would put up a ch...
What causes variation in pain tolerance between people?	[ "Different people do have different levels of sensitivity to different stimuli. People with Asperger's, for instance, tend to be sensitive to light and sound. It has to do with how the nervous system process the information the nerves are feeding it. Mental toughness is also part of it, as well as various technique...	[ "[From the bottom of that article:](_URL_0_) Why are there differences in processing times among regions and offices? Visa offices face different challenges operating in different countries and regions, and even in different offices within the same region. Various factors can affect the time it takes to process...
Why does taste depend on the nose if tastebuds are only on the tongue?	[ "I wouldn't really use the word \"depends\" in this context, but certainly the way food smells plays into the overall perception of taste. Your nose is the first line of defense when it comes to preventing you from eating rotten food. When you think about human history, before fridges and food curing and all this f...	[ "Your body is covered with specialized sensory cells. Each sort responds to a certain thing, and transmits that information to the nerve. One type responds to heat, another to pressure, etc. Since the method they use to detect things is different from each other, the sensations are different too. Your brain transla...
How do smaller online flight travel agents work?	[ "They act as a reseller for tickets via a centralised database for them. Since they can determine their own profit, higher volume (relative to them) allows them to discount. This makes filling planes a surer thing, and many people (rightfully so), still drift direct carrier to buy. They never work with all the airl...	[ "They pretty much don't. However website owners have the option to tell Google \"hey, I have a site here, check it out!\" When pages don't link to each other, website owners have the option to host a special file, named sitemap, that does list all content that should be searched for." ]
why does my new hair cut looks great in the mirror but shocking on photos?	[ "Because you are used to seeing yourself in reverse while viewing the _URL_0_ pictures you are seeing yourself how everyone else sees you.That's why if you ask someone if you look odd in a picture they'll most of the time say \"no you look fine\"." ]	[ "Very often they’re actually remixes or edits. One major factor is time. On the album versions they tend to be longer, because nobody minds. There are different edits and mixes, for radio and ones for video. While less of a factor today due to much better electronics, another problem was speakers. When watching a ...
Why can some 2000HP tuner cars beat million dollar hypercars such as the Bugatti Veyron?	[ "Hypercars and supercars are designed to drive well, not just fast. Muscle cars can be much cheaper and go fast in a straight line, but when you try to take that speed around a corner, bye-bye car, you're a pancake now." ]	[ "There are a lot of people in the world who don't care about laws, or the laws of other countries, or the property rights of other people. For example if you stole a piece of art from someone in England that a wealthy member of the royal family in Saudi Arabia wanted they probably don't care at all that it was stol...
How did carrier pigeons (or messenger ravens for Throners) know where to fly?	[ "They could only fly to one place: home. Hence the name \"homing pigeons\". You'd collect pigeons from places that you wanted to send messages, and then use the correct one to send a message to their home. If you didn't have any pigeons from a location where you wanted to send a message, too bad, that message wasn'...	[ "The same way they do now: using satellite and microwave transmissions. Using the internet is kind of sketchy, because of a lack of control of the bandwidth that can cause the connection quality to drop, which is why other technologies are preferred when feasible." ]
Did medieval folklore pit werewolves against vampires or is that a modern conceit?	[ "It is a modern, literary and cinemagraphic convention. Northern Europe had traditions involving both werewolves and the walking dead. Vampires are a specific variety (drawing on a Balkan tradition), which thrive in literature more than the generic, trouble-making walking dead of Northern Europe. Little actually d...	[ "It depends. Are you talking about the aristocracy? Amongst the samurai specifically? Or amongst the peasantry? Because, as you might guess, there are big differences between those groups." ]
Why do we accidentally bite our tongues?	[ "Think of it the other way around. You are constantly moving your tongue, without seeing it, around a pair of constantly working scissors. Your body potentially has a whole suite of neurons designed to match opening your jaw with the tongue being able to move forward, and retreating as your jaw closes. But nothing ...	[ "I don't actually know the whole idea behind it but I believe it is intentional habit building. The idea being that if you spend 2 months acting like a character, their mannerisms, their way of thinking etc then when it comes time to actually shoot the scenes you will do these things naturally and subconsciously...
Would living in a more oxygen rich environment have any permanent beneficial effect on a person's body?	[ "Actually, past a certain concentration oxygen is toxic. It's important for deep sea divers because the air is in higher concentrations at those pressures. You'll always find other nonvolatile elements are used to dilute the oxygen used by scuba divers." ]	[ "First, what procedure did you use to test/observe this? If you're not very careful, it might be an artifact of the method you're using to test it. For example, if you sit there with one eye closed first, then the closed eye will begin to dark-adapt since it's not getting any light. Then when you open it also, it m...
Is there any correlation between calendars and the menstrual cycle?	[ "Menstrual cycle roughly corresponds in length with the lunar cycle, which is one of the foundations of most calendars. The word \"menstruation\" comes from Latin \"mensis\" which means \"month\" - the relationship was always obvious. However, no actual causal link between them is known to exist. The cycles are not...	[ "I have exactly what you need: _URL_0_ That website is truly awesome if you are interested in such things. You can even take into account different weather etc. It's by Standford and is considered accurate." ]
What gives parrots their characteristic "squaking" kind of quality to their voice when imitating human speech?	[ "That characteristic voice comes from a unique organ called the [syrinx](_URL_1_. Instead of having vocal cords and a larynx like mammals, their voice comes from the place where their trachea bifurcates (diverges) into two primary bronchi. It's actually pretty cool. By vibrating membranes found in the syrinx they c...	[ "It's actually water that's doing that, not the oil. Cuts of meat are full of water, so when you slap that meat down into the oil the water starts to cook out of it. As the water hits the oil it boils almost instantly, which is what causes all those crackles and pops. So it's tiny little explosions of water vapor t...
Celtic knots are typically associated with the British Isles. But were Celtic knots used by Briton, or is it purely a Gaelic motif?	[ "We ask that answers in this subreddit be [in-depth and comprehensive](_URL_2_), and highly suggest that comments include citations for the information. In the future, please take the time to better familiarize yourself with [the rules](_URL_1_) and our [Rules Roundtable](_URL_0_) on Speculation." ]	[ "You mean the Confederate flag? That was the flag of the states that tried to secede in the 19th century, causing the American Civil War. Because the secession had a lot to do with slavery and the southern states' desire to keep holding slaves, it's widely seen as a symbol of racism, white supremacy, and hate. Some...
How do we know we are pronouncing Ancient Egyptian names and places correctly?	[ "Strangely, a similar question came in the other day; I rounded up a bunch of posts that could be helpful. If you have follow-up questions, include the relevant user's username in the comment - most of us have notifications turned on * [Exactly how are we capable of reading Ancient Egyptian?](_URL_0_)" ]	[ "There is a genetic predisposition to seek out the exotic. In social terms, this is expressed very easily through finding folks that look similar enough but sound different enough to demonstrate that they are from a different genetic pool. This is one of the many remnants of our evolution that keeps us from inbreed...
Why does the charge of one atom determine how many atoms there are of another element in a molecule?	[ "It doesn't, it determines what a stable molecule would contain. The 2 atoms of hydrogen and 1 of oxegen have to all already exist and react together to form the new molecule." ]	[ "The outside of cells and virus cells are covered in chemicals. Different cells are covered in different chemicals. Specific chemicals stick to other specific chemicals. Other chemicals don't do anything. It can help to think of it like many different colors of velcro. Blue velcro only sticks to blue velcro, it doe...
How much land (in an approximate modern unit of measurement) was a Roman legionary given upon retirement?	[ "Absolutely yes, land grants were the reason most of the freed slaves were enrolling into the army in the years before A.D. The quantity of land granted depended to the military career and to the discretion of the commander, however the system was very accurate in the distinction of such grants. In fact, Romans app...	[ "hi! Could you clarify the scope of this question? Are you mainly asking about practices in Scotland / the British Isles roughly around the Civil Wars, or landowners anytime anywhere? [hint: [say the former](_URL_0_) ]" ]
I get sunburnt, I start to shed my skin. Why aren't my birth marks losing their top layer?	[ "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" ]	[ "From _URL_0_ \"... Like Magic Shell, Carvel’s Brown Bonnet chocolate topping instantly forms a hard shell around ice cream. And, just like Magic Shell, one of the main ingredients is coconut oil. Tropical oils, including coconut, are naturally high in saturated fat—consisting of about 90 percent of the stuff. As P...
Does anyone actually work "9 to 5"? If so, why doesn't the company require the employee to put in 40 hours of work each week?	[ "Paid lunches are a real thing you know." ]	[ "In a recent election I was involved in, all ballots were cast on paper, and counted by hand. This was in a single time zone, and polls closed at 8 PM. Results started coming in by 8:20 from more populous areas, where they had a full contingent of people counting the votes by hand and reporting the numbers. In outl...
Why do storms on our solar systems outer planets last so long?	[ "This is half remembered from a planetary science class a few years ago, so it may not be entirely accurate, but I think it’s related to the lack of land masses/analogous features to break up the storm. Hurricanes/typhoons on Earth form and strengthen over the ocean, then dissipate once they make landfall. There is...	[ "Go light a bucket of gasoline on fire, it'll take a few minute to burn depending on the depth/width and whatnot. Now imagine something hundreds of billions of times larger." ]
What exactly is Brain Autopilot? What does it do?	[ "Our brains only convert interesting memories from short term to long term. If you are doing something routine and boring, like driving, you can be fully aware the whole time, and have nothing interesting enough to remember happen. This can sometimes give us an odd feeling of dislocation, where we can't precisely r...	[ "This is something I would also like to know as I listen to a lot of trade books in the car while travelling and have wondered if its ~~doing anything~~ actually planting the information into my head or I'm a just listening like a song." ]
What Is the Concern with the Use of Mobile Phones on Aeroplanes?	[ "There were (are) two main concerns - that cellphones and other wireless devices can interfere with radio communications onboard the plane, and that they can cause interference and confusion within ground network operations. Even though there's no evidence that this has ever happened, the FCC and FAA still preferre...	[ "Because the data that is gathered from someone's private life, taken out of context, can hurt them. Even if you have 'nothing to hide', what is taken out of context can sometimes be damning. Like say you had a lot of Muslim friends, and you decided one day you wanted to buy a pressure cooker because you need one f...
Why do relations between US and Russia currently appear to be deteriorating?	[ "A bunch of reasons: * The west strongly disapproves of Russia annexing Crimea * The EU and the US sanctioned Russia, contributing to the ongoing [Russian financial crisis](_URL_0_) * Russia is worried about the continued expansion of NATO * Russia granted Edward Snowden asylum * Tensions are growing over US and Ru...	[ "Greetings everyone. In the few minutes this sub has been up, it's attracting sub-standard responses. Just a reminder of a few of the rules: * no responses covering events/conditions post-1994, per this sub's \"20-year rule\" prohibiting discussion of current events * no anecdotes * no speculation OP: your question...
Why does music sound slower after I go for a run?	[ "I'm sorry that I'm no expert, but I remember reading about this the last time a similar question was asked: _URL_0_ Basically, you percieve time faster after your run because of endorphines released during the work out, which means that the music seems slower. This is apparently also why a lot of rock musicians pl...	[ "There's fluid within tiny tubes in your ears, and these tubes have hairs on them. Your brain pays attention to these hairs and how the fluid moves them in order to figure out where you are in space and how you're moving, but it also uses what your eyes see. Normally, your eyes and ears tell your brain the same thi...
"Part of this balanced breakfast."	[ "No you're misunderstanding a basic use of imagery to describe something. They show you all that food as what is part of a balanced breakfast. All those items are part of a balanced breakfast. Nobody is expecting you to eat all that and drink full pitchers of milk as part of a balanced breakfast. Its for visual pur...	[ "From what I've read, they retained chemists to make sure it was realistic, but changed minor details here and there such that you couldn't actually make meth. So in broad strokes, w/r/t ingredients and general procedures, it was correct." ]
What does the Islamic State want?	[ "They want the world to submit to Islam and have their chief as the caliph. Unfortunately, many ISIS fighters are now begging for jail time in their home country because it is not the life they were promised." ]	[ "I just found [this](_URL_0_) which says the ISS uses a 'local' ground reference, and they apparently have an ion gun and wire brushes for equalising charge between themselves and other objects (e.g. spacewalking astronauts and other craft). Two questions still remain - how do they know if they have the wrong amoun...
When my blood donation reacted during a test What is it that's reacting and what does this mean? Also why can't my blood donation be used?	[ "They test blood for all diseases that could be transmitted through a blood transfusion. Some people have antibodies that cross react (don't have the disease, just have an antibody that binds to the site that causes the test to be reactive) The first tests are incredibly sensitive, but not very specific, so when th...	[ "The server in question is most likely the database server. When you access a page, reddit's web server needs to ask the database for the data. The database has a limited number of available connections, so if too many are currently in progress, it will refuse more connections. The web server will then get an error...
Why is smoking bad for diabetics? Does the cigarette contain sugars?	[ "Diabetes damages blood vessels and impairs blood circulation. Smoking also impairs blood circulation which will exacerbate issues already caused by diabetes. So, if you're going to lose a limb from diabetes, smoking speeds that up." ]	[ "Your cell's DNA is like a paper manual for what it needs to do. Every time that cell divides, it photocopies the manual and gives a copy to the new cell. However, every photocopy can only be as good as the original copy and may also result in a lower quality. The original copy may also get some wear as you flip th...
What was Germany's plan after WW2?	[ "Not to discourage further answers, but the /r/AskHistorians FAQ has a few [answers to this topic](_URL_5_). /u/depanneur had an informative [answer in this thread](_URL_3_) speaking about the origins and development of the \"Lebensraum\" ideology and the WW2 Nazi plans for conquest and colonization. As well as /u/...	[ "Do other EU countries charge road tax to German nationals when they are visiting and using (up) the roads?" ]
What are penny stocks, and how are they different than normal stocks in the market?	[ "[Penny stocks](_URL_1_) are very cheap stocks that are not listed on a major stock exchange, but rather are traded \"over the counter\"(_URL_0_). They may be companies that haven't started turning a profit yet, or aren't \"ready\" to be traded on an exchange. They are extremely risky investments because usually th...	[ "It's when all of your posts are automatically deleted from a sub, but you're not actually made aware of this fact. No one but you can see your submissions and posts. From what I understand, it's a tactic used to thwart spammers. If you get a regular ban, you know immediately and can just make a new account. But wi...
What would be the consequences for a female Chihuahua if she would get impregnated by a Saint Bernard?	[ "The mother Chihuahua can only supply the Saint Bernard fetus with a finite quantity of nutrients, due to her smaller stomach, smaller digestive tract, etc. Therefore the puppy will be stunted, a runt compared to ordinary Saint Bernard puppies, although at the maximum size of puppies that a Chihuahua can carry. The...	[ "Hello everyone, Unfortunately, we have already had to remove a number of poor quality responses in this thread, including many asking about the deleted comments, which merely compound the issue. If you're here to answer the question, please make every effort to answer the question, not talk about the show, make...

Subsets and Splits

No community queries yet

The top public SQL queries from the community will appear here once available.