Subset (10)

eli5 · 25k rows

Split (1)

train · 25k rows

query stringlengths 20 300	positive listlengths 1 1	negative listlengths 1 1
Why are only some methods of effectively superluminal motion/transportation/communication deemed to violate causality? Okay, so Alcubierre drive warp bubbles reportedly wouldn't. Would a wormhole? Would some other way? Why or why not?	[ "Any faster than light travel will violate causality. It doesn't matter how you get from A to B, but if you got there faster than it could take light to get there, according to any observer, then that is equivalent to time travel, and you can break causality. I wrong a long comment about this quite a while ago, b...	[ "It really would depend on the size of the black hole. But this entry on [Spaghettification](_URL_0_) explains it fairly well." ]
If a civilian assists the police during a chase, is it an act of assault and can you be prosecuted for it?	[ "The rules by which citizens may act against a criminal can vary by jurisdiction. There is certainly an element of legal risk if you are not familiar with those of your location (and potentially even if you are), and you could expose yourself to arrest and conviction of various charges (e.g. unlawful restraint, ass...	[ "The movie was [Days of Thunder](_URL_0_) and he was talking about [Slipstreaming or Drafting](_URL_1_). As to your question, this depends on * The velocity of the cars * Geometry of both cars * Atmosphere status (temperature, rain, snow ... although they have very little effect at higher speeds) On the street it's...
Where does the money that is given to charity for Africa in the last 50 years go if the people there are still in poverty?	[ "In countries where corruption, bribery and theft are an integral part of daily business. Money, food stuffs, clothing and medicine etc can disappear long before It reaches those in need." ]	[ "Ebola is endemic to these regions. As [Sunmann](_URL_0_) has linked, the virus has its own cycles in the animals that populate these countries. It's always around. It doesn't really \"stay away\" so much as humans either properly handle, or don't have the chance to come in contact with, infected animals." ]
How East Indies Company was allow to act like a country	[ "Companies have behaved like that repeatedly when governments let them get away with that. US railroad and steel companies have similar histories of land grabs, building up private armies, creating their own towns and effectively becoming their own little governments. Why were they allowed to do that? They paid so...	[ "To answer a little more specific from the perspective of a Californian and answering directly about PG & E: They’re simply going to have to pay a fine. Maybe someone higher up in the company gets a sentence. That’s really it. This isn’t the 1st, and it certainly won’t be the last, time that PG & E is responsible ...
The Birthday Problem (statistics)	[ "The reason your brain is confused is because you interpreted \"two people have the same birthday\" to mean \"given this birthday, here is the chance that someone else in the room has it\". So for example, Billy has a birthday of January 1st. The chances of someone else having this birthday fairly low and matches y...	[ "No (the infinite series could be heads, heads, heads, heads, heads, … for example), although all finite sequences will appear with probability 1. There's a [distinction](_URL_0_) that is very popular to discuss here on /r/askscience, and I'm sure you can find other posts about it if you search." ]
How did starlings evolve to have anti-predator flight patterns?	[ "How did X evolve X or to have X. 1. X that didn't evolve X or have X got eaten. 2. X that did evolve X and had X did not get eaten. 3. X that did evolve X lived longer to have more babies 4. X that did evolve X were more fertile and could have more babies 5. X that did evolve X were more attractive and had more op...	[ "[Social Darwinism] (_URL_0_) most definitely connects to the KKK. The KKK has been around for a long time and it has spent all that time trying to subjugate different groups. They of course think they are better then the groups they despise. In their eyes WASP's are the better of all different races and ethnic gro...
Does underwater in the ocean have "weather?"	[ "Yes it does. It is called mesoscale eddies. Eddies and winds do behave dynamically in similar ways since they are both in approximate geostrophic balance (Wiki this term). Speeds in the ocean are slower (a few knots at most), on smaller spatial scales (e.g. 50 vs 500 km), and have longer dominant periods (months v...	[ "Let's say you want to travel to Chicago from Atlanta by car. Can you predict your exact position at any given time? No. You can predict where you are going to be in the next few seconds but as you look further ahead you lose accuracy. Sure, you could say, \"I'll be near Indy around 6pm on this road, but you don't ...
Why do we see colours when we close our eyes?	[ "I found this article about it: _URL_0_ Here's the tl;dr of it: Atoms emit photons occasionally. Our retinas occasionally pick these photons up, even if the source is inside your own body. Plus, photons can sometimes stimulate other nerves directly." ]	[ "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." ]
Explain car engines like I'm five.	[ "[Searched](_URL_0_) Top comment by [grimlock123](_URL_1_) > A combustion engine is a basically a explosion engine. It works by placing fuel in it (Usually gasoline.) lightning it on fire and causing a explosion. This explosion pushes a piston up. > This takes place in 4 steps > 1.) Intake (Fuel goes in) > 2.) ...	[ "[Richard Feynman](_URL_1_) ELI5's it pretty well in about 2 mins. Alan Alda had a contest and this [8 min video](_URL_0_) won." ]
Why is it so difficult to swallow when you look up, or tilt your head backwards?	[ "Because tilting your head back opens your airway and they can't both be open at the same time." ]	[ "Because you are not paying attention to what time it is. Your focus is on the task at hand. (Space filler because autobot will delete answer) Because you are not paying attention to what time it is. Your focus is on the task at hand. Because you are not paying attention to what time it is. Your focus is on the t...
Are "perfectly straight teeth" (like after braces) better for eating than more uneven teeth (in general)?	[ "No, there's nothing wrong with teeth that aren't straight. There are many factors that are important, including how the top jaw and the bottom jaw relate to one another... but the straightness of the front teeth is not one of them. [Source, and more information, here](_URL_0_)." ]	[ "I have a chackboard with 100 words written on it. You ask me to delete every word that starts with A which there are 6 words. They're written randomly on the chalk board. I need to search for the words, and then neatly delete the words without deleting anything nearby. But you instead asked me to delete everythin...
Why was Saint Pierre and Miquelon returned to France multiple times and not annexed along with the rest of French North America by the British?	[ "The French saw mainland North America as expendable. St Pierre and Miquelon, however, were quite valuable as pit-stops for French fishing in the Grand Banks. The British were happy with French North America." ]	[ "I suppose it's a combination of whether its a more pleasing sound and the familiarity with the \"old\" place. York and Orleans and even Hampshire are, or at least were, recognizable as the old place, but a small island in the English Channel is easier to overlook." ]
Why is there a strong drive to prove others wrong?	[ "1.) Helping somebody else, even if that person is a stranger. The fact that it's on the Internet doesn't particularly matter. 2.) Helping lurkers and searchers. In this case, the Internet increases your reach exponentially. 3.) Making sure your own position is correct, which helps you. The Internet allows not only...	[ "You are allowed to go faster in order to overtake. Different speed limits in different countries. Top speed limits change over time (in NZ we just changed ours to 110 km/hr). Marketing and bragging rights. The customer is always right." ]
Why do digital personal assistants commonly have female voices?	[ "I've always thought because women are seen as calmer, less violent and more compassionate - it's like hearing the voice of your mother. This means that you're less likely to punch your old, malfunctioning GPS in the face." ]	[ "Here's a relevant article in the british journal of nutrition (pdf file) \"Sex differences in fat storage, fat metabolism, and the health risks from obesity: possible evolutionary origin \" _URL_0_ The article explains that differences, which aren't just about distribution but also involve the different types of f...
As light is approaching a black hole, does the light speed up as it gets pulled in?	[ "Nope. The speed of light is always constant! That said... in such a highly curved spacetime, how you measure distance becomes less clear anyway. In a local patch of spacetime near a photon, you can measure distances and times unambiguously, and you'll certainly find it's moving at 3*10^8 meters each second. But ...	[ "Every object's gravity is stronger the closer you are to it. Until you get close to its event horizon, a BH's gravity is almost the same as that of ay other object with the same mass." ]
What was there before the Big Bang ?	[ "We don't know. Current theories imply that the universe was hotter and denser as you go back in time, but once you get back to about a planck time after the Big Bang, our physics start losing their ability to make meaningful explanations. So at time=0, we're still without good answers. If you're looking at anythi...	[ "We have zero understanding of how to answer that question. Science literally hasn’t come up with words to talk about it." ]
How long would it take for someone to instant message someone if you are on earth and they are on the moon?	[ "Since the Earth-Moon distance is about 300,000 km, there would be an additional delay of one second." ]	[ "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." ]
Are there any measurable differences between two hydrogen atoms?	[ "No. :) That's a quite significant feature of quantum mechanics. They are completely indistinguishable. And this is a relevant feature when doing calculations in thermodynamics (more precisely in statistical mechanics)." ]	[ "When something is hot, it gives off light at specific wavelengths. We know what kind of light water molecules produce, so we can detect them. Another place where we see water is on comets, which have a large amount of ice. This evaporates when comets move near the sun, and the tail of the comet is largely water."...
Why do cheap companies like Kia offer a '7-year Unlimited Mile' warranty, but higher quality companies like Mercedes-Benz and BMW only offer 3 years?	[ "\"Higher quality\" is debatable really. Higher price doesn't equal higher quality (look at beats headphones!) And not too long ago Mercedes were known for being unreliable due to there own mistakes (Long story but they decided that there quality was soooooo good they didn't need quality control and it didn't end w...	[ "Premature death simply means someone died before the life expectancy for that population. In the case of the German population, presumably you'd use their[ population table](_URL_0_) (Alternatively, one could use the WHO life table, I assume they break it down by country). So, for men that would be dying before 75...
Why are guillotine blades slanted?	[ "You mention resistance. This is correct. With a slanted blade, the point of resistance is in a smaller area when it first arrives at the person's head. This means that the initial impact does not slow the blade as much as it would if the blade were straightened. The reason this is important is that it makes it mor...	[ "There are authors who claim the practice began during the colonial period as an early \"mens\"/ \"ladies\" designation for an illiterate populace (the sun and moon being popular symbols for the genders during those times). The book : The Little Red Schoolhouse: A Sketchbook of Early American Education has the fo...
Why does hot water clean/wash better than cold water?	[ "Hot water has more energy of motion in its molecules. Higher motion in the molecules competes with the bonds in what you're trying to dissolve in order to get them to break apart and dissolve into the water easier. When you wash things with water in reality you're trying to get the stuff on your plate to dissolve ...	[ "I don't think this really answers your question but if you put frozen food on iron (like on a cast iron pan) it will thaw faster. The metal conducts the cool and speeds the process. I don't know the science behind it but I do know a few scam artists on the 80's were selling \"thawing trays\" for crazy amount of mo...
What is dry drowning?	[ "From what I can tell, dry drowning isn't \"drowning\" in the sense that water is filling the lungs and gas exchange cannot happen. In dry drowning, inhaling a bit of water can cause the vocal cords to spasm and block the flow of air from the mouth to the lungs. There is also a phenomena called secondary drowning,...	[ "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" ]
Why is it that the lottery has reached a records high this year and the year before that ect. It it purely by chance or are there other factors involved?	[ "The organizers of the lottery have changed the [odds of winning a few times](_URL_0_) (most recently rising from 1 in 175 million to 1 in 292 million) and since the top prize grows when there's no winner the odds increases mean the pot can get much larger than in the past." ]	[ "We can look at patterns of what we think the temperatures were like in the past (using things like ice cores in Antarctica which traps \"atmosphere\" from the past). We see gradual changes over the thousands of years, and then very sharp changes in the last 150-160 years. Changes that would have taken thousands of...
Why Voyager 1 launched in '77 is 11 BILLION Miles away yet still transmits home... and my Android can't get reception in the bathroom?	[ "You could get a hell of an antenna if you were willing to pay hundreds of millions of dollars to have it installed in your phone. That's the cost of the entire probe; the antenna would be much less expensive, but [it extends out roughly 2.5 meters](_URL_0_) and [transmits at the rate of 40 bits per second](_URL_1_...	[ "Likely based on maps of coverage area, overlaid with maps of where people live. The accuracy of either type of map isn't perfect (if coverage is blocked by a very specific hill in an otherwise-covered area, for example). But it's feasible to cover basically all of a big city, and these small urban areas contain ...
How come a camera can take only 4 megapixels photos and 1080p video? Is there no correlation between pixels in photos and film? (HTC One)	[ "A still from a 1920x1080 resolution video is less than 4 megapixels (1920*1080=2,073,600)." ]	[ "Imagine you want to cook some food. You reach for a recipe book. Not being very brave you go for something simple. You take the eggs and mushrooms and butter and ham out of the fridge, and you follow the instructions carefully. At the end of the process you enjoy your omelette and think \"if I ever want this omele...
When should you charge lithium ion batteries to preserve their lifetimes?	[ "Generally, you want to try your best to avoid fully discharing a Li-ion battery. Though they have no memory, a full discharge (particularly a rapid one) can be damaging to the internal structure of the battery. Technically, a full charge isn't great either, but modern electronics actually charge up to full and t...	[ "Having sex is biologically expensive (use of calories plus it puts one in a vulnerable position), so it would make more sense if males were able to ejaculate only when they had a full load of sperm. If [this](_URL_0_) web site has the right numbers, and if my math is correct, it takes at least 70 minutes for a man...
~ Why do we have to annually pay auto registration?	[ "It's a property tax, based on the value of the car. It is one of the things that fund road upkeep and improvements." ]	[ "There is a fear, founded or not, that the government will require specific actions or information in order to provided service. Example: \"Oh, you want kidney stone procedure done? Sure, but first we need to see all of your grocery store receipts to see if your diet is causing the problem\" or \"Yes, we will be ha...
If we are in a hot air balloon and we stay in the same place. Would we be on the opposite side of the world after 12 hours?	[ "No, because the atmosphere rotates along with the Earth. If it didn't, you'd be buffeted by 700 mph winds at mid-Northern latitudes." ]	[ "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_" ]
What is the deal with cast iron skillets?	[ "to be clear, you do NOT want rust. If your pan had rust, it would need to be scrubbed HARD with steel wool or something to restore it, and at that point, it would be, at best, good as new (which is considered a bad thing for a cast iron pan) The idea for cast iron is that a film of grease makes a naturally non-sti...	[ "Several reasons come to mind: * More even cooking of the dough * It's easy to slide a dowel or run a string through them for storage or transport * It's just tradition" ]
What happens now that we have a tweeting president who can just delete his own tweets? Isn't everything out of his mouth a matter of public record?	[ "This is exactly the reason why the founding fathers ensured that citizens would be able to make screen shots and have the right to retweet" ]	[ "This is a hold-over from the physical book era. When physical books had to be printed, publishers had local partners in many different places in the world that did local marketing, printing, and distributing to local bookshops. So if you were in New York, you didn't have to talk to a book shop in Switzerland. The...
Looking for a good book on how the Arabs came to conquer Iberia. Is this any good?	[ "The book you have is an excellent one for the Islamic political narrative of that period. I see the book cited quote often. For Spain, I would also recommend for a more scholarly look Early Medieval Spain: 400-1000 for a general overview and the Arab Conquest of Spain 710-797 for a specific look, both by Roger Col...	[ "Chivalric romances often played fast and loose with who was and wasn't Muslim. The most famous example of this is the Song of Roland, where the author claims Roland's rearguard was killed by Moors when in fact they were Basques." ]
Why does diarrhea happen immediately after eating some types of foods when it takes hours to digest the food?	[ "Imagine your body has a switch. As soon as a certain type of food you consume triggers it, your body goes into full evacuation mode. Now, your asshole doesnt know a difference between the burger you ate last night, and those fried wings you just ate, so, like an asshole, he kicks everyone out of the party." ]	[ "It's actually not instant in either direction. It takes several days for the retailer to receive the payment as it's processed through the banks. When the retailer processes a refund, it's the same thing you see when you make the purchase: the money is gone from their account instantly, but it takes several days t...
Can someone explain to me the Big Bang Theory LI5?	[ "A lot of people describe the 'Big Bang Theory' as an explosion when in fact it was not. It's an expansion of time and space. People ridiculed the hypothesis when it was made calling it a big explosion, or a \"Big Bang\" which is where the name came from. It's like the balloon example that gatr1126 mentioned. Space...	[ "Imagine you draw a bunch of dots pretty close to each other on the surface of a deflated balloon. Then blow it up. The dots are much bigger and farther apart." ]
In medieval Europe, how was it decided to which saint or saints to dedicate churches and cathedrals? Did this change over time?	[ "It depended on when the cathedral was consecrated, who was doing the consecration, and the association between the place and local saints. This is also complicated by the fact that most cathedrals had a number of altars within them, usually dedicated to popular or locally popular saints. You might read Patrick Gea...	[ "Satellites are on a set orbit. The scientists put the satellite into that orbit to begin with, so they know when and where in space the satellite is going to be. When they launch a new satellite, they just calculate the appropriate trajectory and launch time to get the new satellite into space without hitting the ...
Did the Romans make any distinction between Greeks from different cities, or was Greece considered a cultural monolith? Was Greek civic pride even alive at the time of the conquest?	[ "Athens certainly received special treatment--After they once again chose the wrong side of a war Julius Caesar asked them how often they expected their glorious past to save them (can't find passage). In the Imperial period it received imperial patronage, particularly under Hadrian. Also, a few cities with a parti...	[ "For the basics, I'd start with Nehemiah Levtzion's (older) Ancient Ghana and Mali. Susan Keech McIntosh has a paper reviewing developments since that book was published, \"Reconceptualizing Early Ghana\" (Canadian Journal of African Studies 42 (2008), 343\\-373). Susan McIntosh and Rodney McIntosh have a wide rang...
Can you tell which star is further away in the iconic Star Wars scene?	[ "Since the shot was almost certainly made as a simple composite of two images of our Sun, there can't be any clues that would lead to determine that one is further than the other. The redness is purely down to the path through the atmosphere being longer when the Sun is closer to the horizon." ]	[ "Parallax works for things close by, out to several hundred light years. Take an angular measurement in January, and another in June, and check the difference. The difference in angular position and the size of the Earth's orbit can be used to make the trigonometric calculation of distance. [See this graphic](_URL_...
Why do our noses run when we eat spicy foods?	[ "Capsaicin is what makes food taste spicy. When the mucous membranes (mouth, nasal passages, etc) get exposed to it, it irritates them and mucous is produced by the body as a defense to try to flush out the irritant. Same reason your eyes water from dust, basically." ]	[ "Yes. Nociception (pain) is blocked by acting on mu- receptors in the brain or periphery (also the gut which is often the cause of opioids induced constipation). This is high in the pathway, so even though capsaicin receptors (TRPV-1's) are separate than other \"pain\" receptors, the mechanism of opioids would stil...
Could someone give a simplified explanation for why matter cannot go faster than the speed of light?	[ "You basically only ever go at one speed through time and space, you can pick to move less through space and travel forward through time 'faster' or you can travel through space faster and have less time pass. Speed of light is the one speed and if you max out one you end up with zero left for the other." ]	[ "Lengths can only contract, they can never be made longer than the proper length, in special relativity." ]
Wired has an article showing "Time Shift" at a certain distance from Earth. Why is it below this border I age slower than on Earth and above it I age faster?	[ "Both special relativity and general relativity affect clock rates. * Special relativity: Faster moving clocks run more slowly, so a low orbit (fast moving) clock runs more slowly than a high orbit (slow moving) clock or than a stationary clock on the Earth. * General relativity: Low altitude clocks run mor...	[ "There's no line of demarcation. Think of it as cities. As you're leaving town, you hit the suburbs. Things are more spread out and not as dense. By the end, you're passing houses every couple of miles. Then, you're out on the road by yourself with nothing but various gasses and dust. When you start to come up to t...
What happened to Spain, as a Power and as a relevant Country, to where it is not anymore? Britain, France, Japan are all still very relevant in modern society, but Spain has dropped off the radar completely, why?	[ "I would like to apologize if this is not a proper top level reply for this sub, but I'd rather point out that this question stood as a sophism to me: Spain is the 4th largest economy in the Eurozone, has some great universities, ... The fact that OP has not \"heard a single piece of news, or well anything at all i...	[ "Some of them are, but most are not. The term \"Hispanic\" as it is used in the United States is a little made up, a creation of the Census Bureau. It requires that persons \"trace their origin or descent\" to a Spanish culture; theoretically, they could be from anywhere in the world. Most Filipinos do not identify...
how do we know the laws of physics are constant through out the observable universe?	[ "We essentially don't - we just guess But it's a VERY educated guess. Physicists over the years have conducted thousands and thousands of experiments that have shown that the laws of physics remain constant. In the absence of any evidence or any (provable) theory to say otherwise physics is able to proceed under th...	[ "That is called Hidden Variable Theory, and basically there's something called Bell's Theorem that says that if hidden variables play a role then the experimentally observed correlations in these experiments would be different. All experiments thus far are consistent with Bell's theorem, excluding local hidden vari...
How are planes "shot down" on the modern battlefield?	[ "It's both. Modern aircraft aren't immune to antiaircraft fire. They're just harder to shoot down. Aircraft generally have radar jamming and heat sensor defeating countermeasures. They also have self sealing and redundant systems in case of a rupture. But antiaircraft guns also are equipped with these technologies,...	[ "Usually it's referring to how government contracts are awarded. Contractors submit bids for how much it will cost to do a particular job for the government, and the government is required to choose the contractor with the lowest cost estimate. So like Apollo astronaut Alan Shepherd said: \"It's a very sobering fee...
Why are ships always referred in the context of a woman? An example, “she can sail the seven seas in 70 days”, not a good example but along those lines.	[ "In English and many other European languages ships are female. In languages like Russian ships are male and some languages don't really have the distinction at all in their grammar. In other languages it is quite common to give a gender to everything. Often a whole class of named objects has the same gender like a...	[ "Simply put, it's easier to tell a 2 hour story than what amounts to an 80 hour story. With a 2 hour movie you spent 20 minutes introducing your characters, build your story a little and then spend 20 minutes ending it. If you've got 65 hours story building, it would feel very cheap to spend 20 minutes on ending it...
Are supposedly "habitable" exoplanets that have 5 times the mass of Earth really habitable?	[ "Habitable usually means that the surface could support liquid water (assuming the atmosphere is right for that). In terms of mass and gravity, a planet 5 times the mass of Earth would actually probably have surface gravity closer to twice that of Earth, because the greater radius of the planet reduces the gravitat...	[ "You can compare it to trying to move a 10 kg box filled with marbles, and 5 kg of marbles without a box. For some reason moving the marbles are easier when they are in a box, even though you are moving more." ]
Do touch screen devices wear out in a similar manner as regular buttons?	[ "It depends on the type of touchscreen. The touchscreen on an iPhone uses the conductivity of your skin to determine where you touch (which is why you can't use it with your average pair of gloves). Considering the screen is glass (on an iPhone at least), it would take a long time for you to wear through that by dr...	[ "Your experience is atypical. Loads of Jeeps do hundreds of thousands of miles with no real issues at all. And they don't care whether they make money on your specific case, they make money on the aggregate sales of warranties vs. the aggregate cost of the repairs made. Which, by the way, they \"buy\" from themselv...
How was the secession of the South from the Union any different from the US Revolutionary War?	[ "I'd say the primary difference is that the 'rebels' lost in the latter. I don't know that someone can really give you a good ELI5 about how it was 'not hypocritical.' Like all true history, it is darn near impossible to boil down to 'good guys vs bad guys.' The motivations on both sides were legion, and surely som...	[ "Gay marriage in on the state level and states having been having referendums to vote it into law or not. SOPA is on the federal level." ]
How people get paid from YouTube, and the amount they are paid.	[ "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." ]	[ "If you have a spare afternoon or two I'd check out these two Khan Academy playlists on the [Credit Crisis](_URL_2_) and the [Paulson Bailout](_URL_0_), and if you want to learn more about how banks work check out this [Banking and Money](_URL_1_) playlist as well; there's a few others on finance and credit as well...
Why does my house shake when an airplane flies by?	[ "It's the pressure (sound) waves coming from the airplanes engines. The sound waves are intense (loud) enough to actually feel the pressure shaking your house." ]	[ "it would help to know what you used to record it and what settings you used. There are some parts of the signal that look like interference from other devices and then theres something that looks extremly simple and rectangular like a garage door opener, or a rf plug." ]
Why does eating spoiled food which has been cooked still make us sick?	[ "Food may spoil and become toxic or irritating if a certain kind of bacteria infected it and left behind toxins or concentrations of something our bodies will reject. Also, certain bacteria can survive relatively high temperatures for short times like dormant botulism spores. Once bacteria gets moving and colonies...	[ "Probably \"similar\" to the feeling you get when holding your breath past what's good for you. Your body just knows what it needs and will tell you when you are taking risks." ]
Who owned ancient artifacts before they were in museums, assuming most museums were built in the 20th century?	[ "You should pose this question to /r/archeology as the folks in that subreddit are very helpful and friendly." ]	[ "Estate used to be a much more vague word - being used as fluidly as to describe something you have a vested interest in. For example, you could say \"TaspiWunder's estate in the solid gold dildo they funded on Kickstarter has no effect on the company's decisions, but reflects their belief in the project.\" You can...
Why are most of the houses in US constructed of wood compared to other countries where it's concrete structure? ( Just talking about single homes and not buildings)	[ "The U.S. is heavily forested and has Canada (another forested country) as a neighbor. Wood is cheap, abundant, and can easily be molded/shaped. However, you do get more concrete structures in certain areas like hurricane/tornado zones. Edit: It's also cheaper to repair, replace, and build on to." ]	[ "Basically, you have to be weaker if you want the kind of fine muscle control we have. Chimps and gorillas physically could not do the kinds of things we can do with our hands - sculpture, art, writing, etc. - because of the way their muscles are attached to their bones. They have better leverage because their an...
How in the hell do soldiers in combat not suffer major hearing loss from the constant firing of multiple weapons?	[ "They do. During drills there is hearing protection, but not during combat. If you have your ears covered, you can't hear anybody talking to you. Hearing loss is a huge problem." ]	[ "I used to work for our local TV station, Ch3 WEAR, in the master control department, and one of our jobs was to prep all commercials ran locally prior to them being loaded into our playlists. So, that meant checking captions, volume levels, run time, etc. If any of these were off by a certain margin, we had to con...
Would the ocean organisms that live 20000 ft underwater explode if they were brought to the surface?	[ "Most animals don't explode when you bring them to the surface, but they largely won't survive either unless you bring them up in a pressurized container. The reason they don't explode is that most deep sea animals don't have any gas filled body cavities and water, being largely incompressible, does not expand very...	[ "The maximum humidity at ambient temperature is still only a small percentage, nowhere near close to enough to start displacing oxygen. You could do it with water above its boiling point, but drowning is the least of your concerns then." ]
Why is barcode scanning so quick and accurare, but OCR even for digital text is kinda bad?	[ "Given the previous answers I have to add the following. & #x200B; Barcodes and QR-codes have been Designed for computers. They have features in place that help with alingnment. Barcodes have built in error checking numbers and QR codes can even have enogh redundancy in them that a computer can compute the correct...	[ "Adding to other comments on weather modelling and data, it depends on where the raw data comes from. In Australia, the government weather bureau is not used by most popular weather apps - e.g. Apple weather, Yahoo weather and Android's default weather app. They use a service called Weather Underground, which crowd...
How is the diameter of Mars 53% the size of Earth's but the surface area in only 38% of Earth's?	[ "The surface area is actually only 28% of Earth's. The forumula for the surface area of a sphere is 4 * pi * r². So if r = .53, r² = .28" ]	[ "Originally, they buy the product very cheap. This means something they buy for say 1 dollar each, they can sell for 5. If they noticed it wasn't selling, they could make it down to 4 dollars, (20 percent) and people would want to buy it more since it has advertising. The same would apply to the percent more. They ...
Why do back windows in cars only go down half way?	[ "In many rear seat doors the wheel well arch is cut into the bottom of the door. Because of this the door is wider at the top than the bottom. The window can only go down as far as the width inside of the door allows. On some cars there is a fixed triangle window on the problem edge. This makes the sliding window ...	[ "Your stereo is telling you what it's actually doing. The amplifier runs at full power, and the stereo reduces the output signal with a resistor, so it's reporting how many decibels of reduction it's applying, since it's reducing the power the decibels are shown as negative, and decrease as you reduce the amount of...
When people commit suicide into water (e.g from a bridge) why do they die?- do they not just cannonball?	[ "First of all a cannonball would probably be worse than most other ways of going in, since you'd be hitting the water with more of your body initially. They die because as you reach a certain speed, hitting water isn't much different than hitting any solid surface. The Golden Gate Bridge, for example, is hundreds o...	[ "As I see it, there are two considerations: surface tension; and, density. Surface tension will be a minor element, but for completeness, the surface tension of salt water as measured in a lab over various concentrations averaged around [0.22 mN/m](_URL_0_). Whereas, for pure water, is around [73 mN/m](_URL_1_). So...
why do people dislike Obama care?	[ "Some people are deeply partisan, and would oppose ANY policy forwarded by the democratic party. Some people object to the idea that it's really not voluntary; they feel that liberty is very important, and they want the freedom to handle their own healthcare as they see fit. Some people don't feel it's right to be ...	[ "Since you haven't gotten a bite, try posting in /r/askpolitics You'll prob get a great answer." ]
Why did the US throw Osama bin Laden's body into the ocean	[ "The US interred bin Laden's body at sea respectfully and in accordance with Muslim religious views. The reason the US chose to do so was to prevent his burial site from becoming a focus of terrorist activity. Basically they didn't want to accidentally create a shrine to a mass murderer." ]	[ "This is like asking \"why does a fire burn itself out - what's the point of using up all the fuel if it can't sustain itself?\"." ]
How was the existence of the neutron predicted before it was discovered?	[ "Rutherford proposed a neutral object in 1920. He wanted to account for the difference between the atomic number and the mass number of atoms. A neutral object could do that. Edit: I should add that Rutherford did not originally anticipate that this would be a brand new particle, but conjectured a neutron that was ...	[ "If you consider positrons to be antimatter, we already have an actual use for them: positron emission tomography (PET) can be used to detect tumours and image brain function." ]
How do those balancing rocks that people stack, work?	[ "The surface of rocks are not smooth, the key is to locate an area of the rock where the rock your Balanceing fits in on a tripod, that is the rock makes contact with three areas of the other rock. To visualize it, or you index, middle and thumb tips together to make a triangle, this is the foundation, than put yo...	[ "A bathroom scale doesn't measure weight, it measures normal reaction. When you bend, the normal force on different areas of your sole changes to keep you from toppling over. If it increases at the place where the sensors are present, it gives a larger reading. A similar thing could happen if you stand on one foo...
How do combined smoke/CO detectors work, when CO detectors are traditionally on the floor (due to CO being a "heavy" gas) and smoke detectors on the ceiling (because smoke is hot, and rises)?	[ "This is incorrect. CO is actually slightly less dense than air. CO detectors should be on the ceiling. CO2 is more dense than air and those detectors should be at ground level." ]	[ "Yer not alone in askin', and kind strangers have explained: 1. [ELI5: Heat rises, yet it is cold on top of a mountain. E ](_URL_2_) 1. [ELI5: If heat rises, why is it freezing cold above the clouds? ](_URL_1_) 1. [ELI5: If heat rises, why are higher altitudes generally colder? ](_URL_0_) 1. [ELI5: If heat rises, w...
Why do children with plenty of friends still have imaginary friends?	[ "Children often have imaginary kids to play out their sense of insecurity in the world - many children with good social supports can still have a sense of insecurity or sense of anxiety. Often kids who have conflict in their lives will find solace in an imaginary friend who offers the kid control over what happens....	[ "The general consensus is [attention and approval seeking](_URL_4_) or [medical issues](_URL_1_). In [domesticated animals](_URL_2_), the approval seeking is generally from the owner. Because we see this in wild animals as well, it can't just be a human-approval mechanism. The attention seeking can be extended to t...
Is there some sort of limit to how big tablet touchscreens can be? (If not, why has nobody put out one that has a screen the size of an actual piece of paper?)	[ "[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...	[ "We are pushing against an 'edge' beyond which the notion of particles stops making sense: The amount of detail that the universe allows at the small scale. Look up 'the Planck Length'. The ELI5 version is that we are trying to zoom in and we're getting pixels." ]
Why do we cry? What is the connection of tears coming out of our eyes with sadness or even happiness.	[ "Humans are very social animals (i.e. social interactions are crucial to our survival), so we have lots of traits that exist only to act as signals in communication. As far as I know, we cry for the same reason we smile or raise our eyebrows - to signal our emotions to others. I have also heard about there being ph...	[ "How much of laughter is a physiological phenomenon and how much is socially constructed behavior? Here's a [NYTimes](_URL_1_) article that might get us started. From what I gather, its an evolutionary feature that allows us to feel close to each other as a group." ]
Why aren't inmates 'allowed' to choose death?	[ "First, most of them don't want it. Even with a life sentence, there is a chance something extraordinary will happy and they will get paroled. Even for inmates who truly want to die, there are tons of legal problems. Prisoners are in the care of the state, so the state is responsible for their well being. And since...	[ "Well, you can take the costs that you pay for your everyday life. Rent, food, hygeine, medical care, dental, etc. Then add to those the costs of having guards, cooks, janitors, and lawyers involved.... it gets pretty expensive quickly." ]
Why are UK mobile plans so much cheaper than US Plans?	[ "Infrastructure costs may well be part of it as there is obviously much less land that needs be covered, but I think Ofcom may have much to do with it as well. Here in the UK Ofcom is the regulator of communications and holds a lot of power over mobile networks and broadband operators, they have forced price reduct...	[ "You may have a flag on your account that says you qualify for the promotion while he doesn't. If you've had your account longer, have better credit/payment history, or if he's locked into another kind of contract he may get different offers. Basically the computer looks at all the accounts and says \"Accounts with...
How did the dinosaurs that lived underwater become extinct?	[ "First, a nomenclature nitpick: there are no underwater dinosaurs. Dinosaurs by definition are land-dwelling (or amphibious at best) reptiles with a certain physiology. Aquatic reptiles are technically not dinosaurs, but we all know that you mean \"large, extinct aquatic reptiles.\" Let's look at a few of them! * I...	[ "Repeal of Glass-Steagall caused it. There really isn't any controversy among financial experts, including Greenspan. It was Glass-Steagall that prevented the banks from using insured depositories to underwrite private securities and dump them on their own customers. This ability along with financing provided to a...
What happens after a thief steals a car?	[ "A chop shop is where they takr cars to be stripped. Of everything. Motor trans electronics ect and they sell all the parts. In a good shop the stolen car leaves as a frame." ]	[ "Depends on the state. [Each state has different statutes governing this] (_URL_0_). Also, several states have no statutes at all, meaning that if you get wrongfully convinced there, you have no automatic right to recourse. I believe (but am not 100% on it) that you can take the state to civil court, but obviously,...
Why are rocket nose cones, such as SpaceX, rounded like a Von Karman Shape instead of pointed?	[ "A rocket during ascent quickly reaches altitudes where air density is so low that it causes no major issues in terms of heat and airflow. About half of the orbital speed is achieved above 80km; essentially in vacuum. _URL_0_ Reentry is much more violent because by then there is no fuel available to slow the craf...	[ "Relatively easy to manufacture, makes it easier to seal, and has a built in pouring method. Just means you need a small cork as opposed to a big one, really, and to make a wider container good for pouring it has to have a lip on an edge, which makes sealing it even more difficult. Besides which, if it doesn't ha...
Billion dollar a year aid to Egypt	[ "The aid is military aid, and it doesn't come in the form of cash, but rather credit to buy American weapons. It's purpose is to maintain political stability in the region in order to maintain oil supply and protect the canal. It's secondary purpose is to maintain the military industrial complex; in order for the w...	[ "The graph cites a broken link to the US Census Bureau. A few minutes of digging led me to [this table](_URL_0_). As you can see, the only number for 400 BCE is from Biraben, whose numbers are higher than the McEvedy and Jones numbers the table depended on before. Biraben numbers often are the upper limit, but acco...
Why is ALL of the climate change so bad? Is there really no part of the world that is likely to benefit?	[ "I think it's less that there aren't any places that might benifit in some way, and more that the benefits are just so massively outweighed by the costs/drawbacks globally. Sort of the same reason why we rarely hear how allowing large-scale corporate fraud would benefit small groups. It just doesn't really matter i...	[ "AC was invented because someone wanted to remove humidity from the air, it was only after they did this they found out that a side effect was cooling. Cali. doesn't have that much humidity and Florida has a more then any human should have to go through. I would say in Florida your noticing the cooling and humidity...
Why is it that some bottled water taste better than others?	[ "Most bottled water comes from municipal taps, but some undergo different filtration processes and/or have some minerals added in the process. Your taste buds are sensitive to these impurities and minerals or lack thereof, making different brands of bottled water taste different." ]	[ "Simply gravity and water pressure. In Ancient Rome for example, all water to the city came from cisterns in the hills and was transported throughout the city through a series of aqueducts. Gravity pulled the water through aqueducts, and when it reaches the fountain, the water was funneled through a smaller pipe cr...
why toilets are made of porcelain	[ "Porcelain doesn't absorb water, doesn't stain easily, is durable and attractive and easy to clean, and works great for plumbing fixtures." ]	[ "It is certainly our diet. Meso-paleolithic humans survived on a diet of huge amounts of fiber (which cleans teeth when chewed) small amounts of sugar, absolutely no processed foods, etc." ]
Why can the sun burn us on a hot summer day, but can barely be felt in the winter?	[ "Because in winter the angle the sun strikes the earth spreads out the rays do less energy is being deposited per given area. In the summer when the sun is more directly overhead the rays of the sun are striking closer together, depositing more energy, which is of course heat." ]	[ "We have separate sensors in our skin for sensing hot and cold temperatures (known as thermoreceptors). These sensors will get activated at specific temperature ranges (i.e. cold temperatures for cold thermoreceptors and hot temperatures for hot thermoreceptors) and the activation of these separate receptors is how...
What did peasants do during the winter?	[ "I asked a similiar question a while ago and got many good answers: [What was the average number of holidays per year during the Middle Ages? / What did a peasant do during the winter? ](_URL_0_) If someone wants to answer this question or has something to add, please answer to this post anyway." ]	[ "Do you have a particular geographical region or time period in mind? You're more likely to get a good answer if you are more specific than \"people in the past\"." ]
Are there any other documented mass movements of soldiers a la Flight of the Wild Geese and other Jacobite forces?	[ "Following the collapse of the Khwarezmian empire to Genghis Khan, numerous Khwarezmian soldiers moved to northern Mesopotamia where they served as mercenaries. They would later move further south and seize Jerusalem in 1244 and eventually be absorbed into Mamluk Egypt. Following the battle of Hastings, it seems a ...	[ "Slightly off-topic, but [this video](_URL_0_) talks about the systemic, official use of meth in the Luftwaffe in the Blitzkrieg (as well as the USAF). This isn't a direct link to the use of meth in the IJNAS, but it was a pretty common throughout the rest of the war." ]
Can I lie to a police officer?	[ "You should never lie to a police officer, but you can stop answering questions if you like." ]	[ "I don't know where you experienced this but I do it all the time. I bought a tv one day. It came up to $500 and something. I handed the dude 4 100 dollar bills, and told him I was going to put the rest on a card. He punched in the $400 and got my new Total of $100 something. Then I ran my card like normal." ]
Does 24 hours have to pass before reporting a missing person? If so, why? If not, where did this originate?	[ "You do not have to wait 24 hours to report someone as missing. If you have serious concerns for the safety and welfare of a person, and their whereabouts are unknown, then you may immediately report them missing to your local police. Police will take a report where there are concerns for safety and welfare and the...	[ "They're already cooked and just need to be rehydrated. Think like a chicken breast...You can boil it and it'll take 20 minutes to cook, but if it's already cooked you just need to warm it through and it takes 5...Same concept different medium." ]
Since there are many other chans, why is 4 most notorious?	[ "They're pretty much OGs. And by OG I mean it was the first English (language) website to rip off 2chan." ]	[ "basicaly sending a lot of trafic to a destination you intend to take down, there is so much trafic the destination can handle before it gets cloged and legit users cant access, imagine like its a highway, be it 10 lines or more no matter how big, if you sudenly start moving thousands of cars on it trafic jam will ...
How, with all sorts of radio waves and the like around us all the time, are we safe from negative effects from this?	[ "Mostly because the waves have very low energy, too low to damage you. If I drop a facial tissue on your head it doesn't injure you, right? How about if I drop it, remove it, and drop it again? How about if I do it 1000 times? Doesn't matter — it's just too weak to hurt you." ]	[ "Your microwave oven is pushing several hundred watts into a pretty small enclosed space. It's not transmitting heat -- it's exciting water molecules in your frozen burrito. Your Wi-Fi access point is pushing less than a watt and scattering it in all directions, which is why it will do nothing to your burrito." ]
Why and How do woman die or are close to dying during childbirth?	[ "Most women who die in childbirth die due to blood loss. They have a hemorrhage that isn't promptly treated. Cardiac arrest is probably second but that might be seizure or stroke caused by preeclampsia (high blood pressure)." ]	[ "Well, first off, those people agree to it. I'm sure there is a nice, thick contract they sign before they ever make it on the show. Secondly, it is much less dangerous than it appears to be. You don't see them, but there are medical personnel available 24/7 to the contestants of those shows in case anyone gets int...
How do our ears distinguish between sounds that are in front of or behind us?	[ "This question is asked regularly. The simple answer is that the shape of your outer ear alters the frequency response of your ear to a source, depending on if it's in front of or behind you. Assuming the source is somewhat familiar and relatively wide band (a voice, for example), you can determine where the sound ...	[ "Put simply, your brain just gets used to filtering out certain continuous stimuli. It's the same reason you don't feel the shirt on your back unless you think about it or the stimulus changes (e.g., when you move). Our brains do a phenomenal job at filtering out unnecessary information." ]
When lightening hits the ocean does it kill a bunch of fish?	[ "Interesting question. My first thought was \"of course\" but then thinking about sea water and how it's full of electrolytes and is a good conductor because of it made me realize the current would dissipate pretty quickly. Googling your question lead to this article: _URL_0_ According to the article the current is...	[ "Most electronics are delicate circuits which rely on specific amounts of electricity running between certain components. Water allows electricity to bridge gaps and flow into areas it isn't designed to go, overloading and breaking components of the circuit. It can also cause corrosion over a longer period of time ...
what is a college credit hour and how do they work?	[ "It's just a measurement of how long you spend in lecture each week, really. They're a good basis of how* much learning you're doing at a time. For example, you may need at least 12 credit hours to be considered a full time student. In general, this means you need to be in lecture 12 hours a week, usually with 4 cl...	[ "Pictures on TV screens and computer screens are made from a whole bunch of teeny-tiny dots of lots of different colours. More dots, all jammed really, really close together, means the picture looks better. 'Cause the dots are less noticeable. And there's way more details. That's hi-def. More dots." ]
Why is age discrimination illegal for job openings, but it is legal for things like car insurance?	[ "Discrimination is, by default legal (in the US). It is only when the legislature acts to outlaw it that it is not. Congress has acted to outlaw (some) age discrimination in (some) employment, so it's illegal in those contexts. (The reason for that is largely economic, the government doesn't want to have to foot un...	[ "The same reason you can walk through an airplane isle even though you are unable to move at hundreds of miles an hour (or fly). The same reason you are able to survive walking around outside even though the earth is spinning around at thousands of miles per hour. Ir more precisely, why you can swim in a pool even...
Why does a cat automatically raise its butt in the air when you pet down its back?	[ "Couple of reasons. Cats have a scent gland by their ass and raising their butts is a friendly invitation to take a sniff. This is a normal greeting. For a cat. Also when they are young their mother would have encouraged them to take a dump by licking their ass. So it can also be a holdover from when they had qual...	[ "It's body language, a physical manifestation of an emotional reaction, so the viewer knows what the character feels (likes the kiss). See \"curl my toes\"." ]
what would happen if all the other stars in the universe disapeered? Do they have any effect on the Earth?	[ "Although the other stars in our galaxy effect the direction that the sun and the solar system travel, that really doesn't matter much to us. The rest of the universe certainly had a lot of influence on our past (such as creating the heavier elements), at this point it doesn't do much from our point of view oth...	[ "Mythbusters covered this in an episode \"Let there be light\". Basically without something to disperse the light it just stays in beam form, gradually getting dimmer as it pass through more air." ]
Hypothetically, if there were a planet made completely of liquid water, would there be a depth where bubbles would sink?	[ "When water reaches a certain depth, it becomes a solid. It doesn't require an entire planet to be made of water, only a few hundred km. [Here](_URL_0_) is a good chart, which makes almost no sense until you stare at it and squint for a while. I don't know the answer to your question, but a planet of water isn't ...	[ "They need to push down on the air to keep flying. In space, there's no air to push down on. Eventually, the air becomes so thin that you can't push enough of it down to keep yourself up. You can swim in water, because it's dense, and you can push water down and pull yourself up as a result. Now try swimming in air...
What causes antibiotic resistance?	[ "From what I can remember, Yeah you’re right it is essentially evolution, it’s a lot faster because of the generation time of bacteria is very short and bacteria can undergo conjugation (horizontal gene transfer) to spread the resistance quicker, in terms of fighting resistance, not taking antibiotics when you don’...	[ "This is one of the most striking examples that occurred recently. Richard Lenski, an evolutionary biologist at University of Michigan, has been monitoring the decedents from one e. coli bacterium (split into 12 different samples) in lab since 1988 - over 44,000 generations of e. coli. In 2008 he published find...
Why is Churchill still seen as a great leader and the saviour of England, despite him being responsible for millions of unnecessary, racist deaths (mainly Indians)?	[ "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." ]	[ "Average, can be measured artistically, in terms of simple mechanical skill. Give thirty randos a set of watercolors and brushes, say \"Paint a tree and a blue house.\" You'll get some terrible, one or two great ones, and and 26 very similar houses with similar trees. Hiter's work was somewhat like that, in the wo...
How bad would it have smelled in a medieval city?	[ "Follow-up: How would a more rural village compare and did people in the countryside with access to fresher air have different feelings about the conditions in villages?" ]	[ "I remember similar questions being asked before -- unfortunately, a good part have top comments deleted by users from what I can tell (not mods). Two threads might still be of use, though: - [In shows like Game of Thrones, characters wear their armor almost everywhere. How accurate is this portrayal?](_URL_5_) - [...
Which evidence made us believe that dinosaurs were extinguished by a meteor?	[ "Couple of things... 1) There's a significant layer of iridium in the rock layers between the two time periods between dinosaurs and non-dinosaurs. Iridium is not common on earth but is common in meteors. 2) There's a huge meteor crater off the Yucatan Penninsula that dates to the same time as the layer of iridium....	[ "In a lot of cases we don't. & #x200B; In some cases we can the imprint of feathers or other surface features imbedded in mud that has turned to stone." ]
How open were previous civilizations to children about sex?	[ "Going to throw this out, though it's by nature very difficult to source. Those who worked in agriculture would be around farm animals...dogs, sheep, goats, pigs, cows, horses, etc. All of these animals would at some point engage in sex or there would be no calves, foals, lambs, etc. It would not be a great leap of...	[ "This might be easier for people to answer if you gave a specific time and place. Are we talking about Italian renaissance choir boys or Chinese imperial officials? Edit: specific time not a specific Tim" ]
What makes instant noodles instant?	[ "They're already cooked and just need to be rehydrated. Think like a chicken breast...You can boil it and it'll take 20 minutes to cook, but if it's already cooked you just need to warm it through and it takes 5...Same concept different medium." ]	[ "Some actions inherently end in a sudden result -- like if you snap a pencil, the final break happens very suddenly, no matter how slowly you bent it up to that point. Sudden things release a lot of energy (such as noise) all at once." ]
How they secure phone lines and what makes them secure	[ "Typically the line itself wouldn't be secure, the two end points(phones) would be. You'd have a card or some other encryption method that scrambles the communication, so if one were able to tap in and listen, all they would hear is a garbled mess. The phone on the other end would also have a card to unscramble the...	[ "...[here](_URL_0_) is the securtiy video. What else are you looking for?" ]
Why can my dog eat its own poop and drink out of streams without getting sick, but I can't?	[ "Not all digestive systems are created equal. For example, most scavengers have developed incredibly tough, efficient digestive systems to help deal with the available food sources being pretty gross." ]	[ "Two main ways come to mind: * Generally, this is done when you test animals on a particular cognitive ability, and you show that the animal also possess this. For example, you can use the [mirror test](_URL_0_) to see (i) at what age children develop self-awareness, and (ii) if animals are able to complete the tas...
I understand trading stocks, but what is trading bonds? How can there be a market based on loans (bonds)? What are you investing in?	[ "I am the King of Rasfertia, and I say to the financial world, \"If you pay me a dollar, I'll repay it at 3% interest for 5 years -- I'm only selling 300 dollars with this promise. If you think Rasfertia will be around in 5 years time, and still be taking in tax revenue, speeding tickets, things like that, you say,...	[ "Instead of connecting to a website directly, TOR creates a path with several proxies between you and the website you visit. A proxy is a computer that acts as a relay point. It asks the information for you then gives it to you. So let's say a path is built with only two proxies: Your computer < -- > Proxy A < -- >...
Sharks co-existed with other large prehistoric sea creatures, so then why did sharks continue to survive past the great extinction, but not sea creatures such as the Mosasaurus or Plesiosaurus?	[ "Found out the answer after some research. Turns out all the sea creatures that didn't survive weren't fish, but \"Sea Reptiles\" which couldn't adapt as fast as fish, like sharks, could to the changing environment." ]	[ "A pyramid is the easiest type of building to make. Any group of people who want to make a large structure are always going to start with a pyramid. Staircases are always going to take more work. So, if you want to walk to the top you will always make one section a stair case which is always going to be straight up...
If a cloned organ starts off as "old" as the original cells used for the cloning and with the same accumulated damage to the DNA and shortened telomeres, then shouldn't we be preserving our DNA as soon as possible?	[ "Theoretically that would be ideal as your DNA will have accumulated less mutations. A mutation in a part of the genome that a tissue doesn't use has no effect but try using that DNA to recreate another tissue, you might run into a problem Couple options would be to preserve when younger. Another would be to take a...	[ "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...

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