Subset (10)

eli5 · 25k rows

Split (1)

train · 25k rows

query stringlengths 20 300	positive listlengths 1 1	negative listlengths 1 1
What is the gas inside a pepper and other vegetables?	[ "One time solanaceaous plant geneticist here (tomatoes, peppers, potatoes). It's pretty much a mixture of oxygen, carbon dioxide, nitrogen and some water vapour and trace amounts of volatile plant metabolites. The specific ratio of the gases is pretty different to the normal atmosphere, there's a lot more carbon di...	[ "It's not the food you eat that comes out, rather the crap already in you. Whatever you ate, if it was dodgy, your stomach needs all its resources to deal with it to try and stop you getting sick. As its fully concentrating there, it doesn't want to deal with the stuff in your colon so it expels it as quick as poss...
Why does water conservation matter in areas with plentiful rainfall?	[ "Same reason you save money even though you have a good monthly salary I guess, there is no guarantee that the rain will fall for ever" ]	[ "Your question is like: > Why do people keep telling me to take a pill my doctor prescribes when in ye olden days people didn't have access to the same pills? Clean water is way easier to get now than it was then. Since you have access to clean water you should use it. In the same way, getting a doctor to prescri...
How are we able to tell the features of a newly discovered planet without a clear visual?	[ "It varies by how they're detecting the planet, but a lot of these details come from looking for planets which are passing between us and their star. When this happens, the apparent brightness of the star is reduced. By looking at the profile of the change in brightness, it is possible to discern the presence of an...	[ "You can't. It's called confirmation bias, where you pay more attention to those instances that confirm your belief than those that don't. Times when you've thought someone was staring and nobody was are not of interest, so disconfirming evidence is weighted less in your mind. It's a very well understood cognitive ...
What Cause Boomerangs To Return To You?	[ "Boomerangs are airfoiled, so they generate lift. If thrown correctly, they will fly in a circle, thus eventually returning to the thrower. [Source](_URL_0_)" ]	[ "Your car acts as a [Helmhotz resonator](_URL_1_), just like when you blow in a bottle, but the frequency is obviously much lower because a car is much larger than a wine bottle. You can also look [here](_URL_0_) for more comments." ]
Cryptography. How it works, how the NSA has compromised it, and what does it take to be strong and work for privacy/security?	[ "Certificates are encryption keys. CAs are organizations responsible for keeping the \"official\" encryption keys so that when you do an online transaction with your bank or something your computer knows it can trust the bank because the bank has an encryption key signed by the CA. The details are slim but it looks...	[ "Because taxes are complicated, and not all taxes relate to \"commerce\". For example, you pay taxes based on how much you make. But if you do something like donate to charity you have to pay less taxes. If you have an additional child you may end up paying less in taxes. If you get divorced you may have to pay les...
Does the mass of an object affect the intensity of the sonic boom that it creates when traveling at mach speeds?	[ "The only factors that matter for the creation of shock waves in atmospheric flight are outer geometric profile (size, shape), orientation of that geometry relative to the free stream, airspeed, and air temperature." ]	[ "Because bone and muscle respond to the stresses placed on them. Muscle responds to contraction with increased size and strength as long as it is a high enough force to recruit a substantial number of motor units. Bone responds to impact and to high-force biomechanical loading from muscle contraction. In space ther...
How do you measure time in space (p.e. on the ISS?)	[ "They set their clocks to gmt/utc on the iss it's roughly half way between Moscow and Huston. It's also what we use in the uk (but without daylight savings I believe?) _URL_0_" ]	[ "I mean, you can work out and gain mass, but the statement about muscle is taking into account that you follow the same routine as in earth and were stabilized on not gainong/losing muscle. What it means is that since you don't make work against gravity to walk, move things, etc. Doing the same workout with the sa...
Does the colour of a gas depend on the scattering of light?	[ "It takes a lot of gas to scatter enough to get a visible change in colour. That's a whole atmosphere's worth up there. What has a much greater effect is the wavelengths of light that the gas absorbs. For example: [here is the absorption spectrum for NO_2](_URL_0_). It absorbs a lot of light in the blue end of...	[ "As far as we know, there are only a few different quarks and a finite way of arranging them into baryons like protons and neutrons that could form nuclei. Protons and neutrons are the only baryons we know of that exist for more than a tiny fraction of a second. The fact that we see spectra around us in the univers...
Why do we have taste?	[ "No expert, but I would think that it keeps us from eating things that are bad for us more often than it keeps us from eating things we need." ]	[ "Well first of all, the chemicals you listed are in actuality neurotransmitters. These are specialized molecules that are constantly floating around in the brain. I am by no means an expert, but I hypothesize that many different types of neurotransmitters were created simply as a survival trait. Being able to exper...
When creating a standardized test of any kind (intelligence, proficiency, personality, etc...), how do the people that design them test that they are accurately measuring what they are supposed to test?	[ "For the most part they don't. This is why the SATs change every year and sometimes they're extremely difficult, and sometimes not. Otherwise you can know if a test is accurate by testing known samples. Take personality for example, you know bob is an introvert so you design a test to test him. Now somehow bob tes...	[ "They measure the level of infrared radiation coming from whatever they're pointing at. The laser is only there so you know what you're aiming at, and has nothing to do with actually reading the temperature." ]
Why do we, in the United States, use the metric system with respect to energy consumption?	[ "The reason for this is that there are no U.S. customary units for Electric current, Resistance, Potential Difference, or charge, simply because the ability to measure these has only really been around since the world switched over to metric. (The metric system was put into use in most european nations around the e...	[ "Specializing helps with optimization. Cows can't eat meat, but their teeth and multiple stomachs are ideal for eating grass. Humans have to have sharp teeth for meat and grinding teeth for plants and our digestive system is inefficient at processing plant matter. Versatility is obviously useful, but there are trad...
Why do things burn up when entering Earth's atmosphere?	[ "They enter the (relatively stationary) gases in Earth's atmosphere traveling extremely fast. This causes them to push the gas molecules directly in front of them into the gas molecules farther in front of them bringing the gas molecules closer together - i.e. an increase in pressure. An increase in pressure also c...	[ "Stage 1's cost a TON of money. Basically, the Stage 1 in all previous missions was destroyed and landed in a random position in the ocean, and that means things were VERY expensive and unorganized. It's like, if you were going to buy flights to another country, someone would have to rebuild the entire plane from s...
In terms of "getting stuff done", how will Bernie Sanders differ from Barack Obama?	[ "In all likelihood, he won't. While the President has authority to make many changes under his role as leader of the executive branch, there are also many things that he cannot change without the approval of Congress. Or perhaps I should say, there are many things that only Congress can change, and the President me...	[ "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...
How does the international community find out a country is enriching uranium for nuclear weapons?	[ "We know what tools and supplies are used to do that, and some of them you can easily identify in spy satellite photos. Coupled with radiological readings from the area, because we know how to enrich uranium, we know what it looks like when someone doing it. Some times, intelligence services have discovered shipmen...	[ "The supreme court had previously held that making private copies available for use by others was legal in Canada (see BMG vs. John Doe). As such, there was no legal copyright infringement that copyright holders could use as leverage to get (the subpoenas required to get) ISPs to disclose the identities of the file...
Why is a passport required to travel to China from Taiwan, if China insists that Taiwan is a part of it?	[ "When the communist revolution happened in China, the revolutionaries, known as the People's Republic of China, pushed the previous government, known as the Republic of China, out of the mainland, but never actually took control of Taiwan. So, \"Taiwan\" is actually just the ROC, which, as you can imagine, causes a...	[ "Beef has very dense tissue so it's hard for bacteria to migrate past the surface. As a result, only the outside of the meat has to be cooked. Chicken has less dense tissue so bacteria can be mixed into the tissue much more easily. Pork can carry parasites in the tissue that aren't a problem in cattle, so pork ha...
Why do downloaded games cost exactly the same as a physical copy?	[ "Because you're ultimately not paying for the media the game comes on, you're buying a license to play the game." ]	[ "Online tracking is easy. Whenever you click on an ad, it sets a cookie on your computer that marks you as arriving to that site from the ad. Your each activity on that site is tracked and noted when you make your purchase. Offline is a bit different. Depending on the size and marketing efforts of a company, they m...
Was Hitler's oratorical ability good by modern standards?	[ "Question: A book I read (but can't recall the title) stated that Hitler worked with someone in the 1920s to improve his gestures, to make them more appropriate to larger audiences. Is this true?" ]	[ "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." ]
Can Type 2 metals change charge?	[ "It's actually called the oxidation number. But yes it can happen very easily. It's called a redox reaction. If you mix an oxidizer with Fe^2+ it can become Fe^3+ or if you mix a reduction agent with Fe^3+ it can become Fe^2+or even Fe metal with an oxidation number of zero. _URL_0_" ]	[ "> Is it simply for the furthering of knowledge or is there another reason? Is that not enough? We learn about nuclear structure, nuclear reactions, etc. If we can study them chemically, we can learn about atomic structure as well. These extremely heavy elements could have very interesting chemical properties." ]
Why does the sky go dark around large explosions ?	[ "Cameras and our eyes adjust automatically to changing light levels. By comparison, any bright thing in the field of view will be normalized by the camera automatically. The shifting midrange of the photos means less brilliant parts of the field of view will be darker. Edit: spelling." ]	[ "Looking at something exercises the rod and cone cells in the back of your eyeballs which then send the signal down your optic nerves to allow your brain to process the information. If the subject is very bright, then your rod and cone cells get overworked and start to become less sensitive to whatever type of ligh...
Were Celtic women as free as I have read they were?	[ "In Celtic law, women were basically afforded the same legal rights and protections as men. When they married, they would retain ownership of their own property, and after a divorce, a woman would retain it. Women had the right to bear arms, would fight as warriors, or hold positions of authority. However, freedom ...	[ "I think it would be good to specify what particular IRA you wish to know about. Are you talking about the Old IRA that Michael Collins fought with? Or the Provisional IRA?" ]
Why is my facial hair red-orange when I'm a dark brunette?	[ "Males shouldn't refer to themselves as 'brunettes', you should say 'when I have dark brown hair'." ]	[ "It is down to the combination of the genes you get half the genes from your mother and half from your father but those genes are an almost random selection of those genes which go to make up each so can be combined in trillions of different ways. Like saying you get half a pack of cards from one parent and half fr...
if Hitler’s politics were extremist right, why were they at the time referred to as national socialists?	[ "They were just using the term socialist to seem more appealing. It's like when guerilla groups call themselves things like \"The People's Freedom Army\" and then they massacre and rape people." ]	[ "For the same reason that you always hear the term \"semiautomatic assault rifle\" when someone decides to go on a rampage. Its sensationalism. Ordinarily, specifics like that are used to reach something deeper inside of our heads to make us react in a more meaningful way , thus increasing ratings/sales." ]
Network Address Translation	[ "Quick definition: NAT is a technology for multiple computers to use the same address that your internet service provider assigned to you. This is the most common technology you'll find on normal homes with internet access. If you have more than one computer on your home, they will use the same \"internet\", tha...	[ "N6 indicates where the methyl group is on the adenosine. Compare the structures of [adenosine](_URL_1_) and [N6-methyladenosine] (_URL_0_)." ]
How does your brain know if your tongue is tasting something sweet or sour?	[ "The sense we call \"Taste\" is actually sensing the chemical makeup of whatever you're putting in your mouth. Various nerve endings in your taste buds will only send a signal to your brain if they are triggered by a certain chemical. Since different foods have different combinations of chemicals, we experience eac...	[ "We have evolved a specific tracking system for our eyes, [smooth pursuit](_URL_0_) for tracking moving objects. A component of smooth pursuit is feedback from the optical system to the brain, to allow it to predict the movement we are tracking. Without that feedback (that is to say, without the moving object) most...
Why is the USSR described as being a ''Hollow giant''?	[ "I believe that this usually implies that, although the USSR was militarily strong, its internal economics, political, and societal difficulties meant that it was unstable." ]	[ "Yes, entire villages were struck so hard that they were abandoned. In Sweden, there's a specific name for villages that were abandoned - \"böle\" was added to the name of the village when it was re-populated again. It might not have been entirely eradicated, but enough so that people could move in from the outside...
How is Kanye West allowed to show a realistic depiction of Taylor Swift, Amber Rose, Rihanna, Caytlin Jenner, Bill Cosby, Chris Brown, Ray J, Anna Wintour, and George W. Bush naked in the "Famous" video?	[ "I've not seen the video, but \"a realistic depiction\" sounds as if it's not really them? You can draw anybody's boobs as realistically as you want and show them everywhere, ain't no law against that." ]	[ "A guy on Gawker published violentacrez's real name, which caused a lot of subreddits to ban all Gawker links." ]
Redbull & Alcohol. What is happening to our brains when we combine them?	[ "Alcohol is a depressant in that it slows down the central nervous system. When you're drunk you lose balance, become more emotional or angry and violent, and become tired. Red Bull has caffeine which is a stimulant in that it increases central nervous activity. However, when you take both at the same time, the alc...	[ "Because your body assumes that you're staying up late/not eating for an important reason and so adapts. Haven't slept in awhile? Your body thinks \"Well I must be awake because I need to in order to survive\" and gives you what people call a \"second wind\". This keeps you alert and focused so that you can do what...
I've read that the POTUS is not allowed to do certain things (drive, use their own cellphone etc.). What would actually happen if the president tried to do these things? Who has the authority to step in the way?	[ "Nothing would happen, though their security detail would probably be unhappy with them. They're only not allowed to do those sorts of things by policy and the recommendations of experts, there's no legal structure that disallows it. The President can largely do whatever they want, it's just that they generally und...	[ "What a CEO does day to day can depend a great deal on the company but the general analogy is that they are the captain of the ship. While they might not be pulling ropes or even steering they are the ones plotting the course of the vessel and choosing its direction. A good CEO steers a company or product where it ...
How come Hiroshima isn't a dead city, like Chernobyl?	[ "Hiroshima was destroyed by a nuclear blast. Chernobyl was'nt actually destroyed at all, it was irradiated by a nuclear power meltdown. While Hisoshima was certainly more PHYSICALLY destructive, that destruction was caused by a rather small sphere of fissionable material, and there simply isn't enough of it to cont...	[ "Most simply, the same reason hundreds of boats do not crash into each other in the open ocean, planning and a HUGE amount of space per object." ]
Why is this subreddit more popular than ask reddit? What is the difference?	[ "Ask Reddit is for personal opinions, stories, and the like. Essentially subjective answers to questions without hard answers. Something like \"whats your favorite food\" is a good post there ELI5 is for getting a simplified answer or explanation to a question that you don't understand. A good thread here would som...	[ "You need to pay attention carefully to a movie. With a show you become familiar enough with the logic and the characters to just sort of watch it casually. I feel just as exhausted watching a pilot as I do a movie, there is a lot of exposition. Once you get past the exposition you don't need to learn as much." ]
Does driving towards a radio transmitter make the song play faster?	[ "If it is amplitude modulated, yes it does! The effect is minuscule, but it's there. It's a phase modulation as part of the Doppler Effect. If it is frequency modulated, no it will not. All that happens there is that the central frequency, as it does with the AM broadcast, will become slightly higher." ]	[ "If this was possible (it probably is) it would be a horrible idea. You would literally be slowing down the earth. Maybe the effect would be small at first, but it would build up over time. The question is only how long would it take to have an effect, and how bad would the effect be." ]
What is "energy" in biological processes?	[ "Beyond what Dajbman22 described, biochemical energy is also used in the synthesis of more complex chemicals such as amino acids and nucleic acids from simpler components." ]	[ "Circadian rhythm - it is your internal clock. it is affected by temperature, light, meal times, exercise, etc. It tells your body to make chemicals when its time to sleep and chemicals to wake you up. There is a set of brain circuits that regulate that" ]
If I were to stand at the geographic North/South Pole, would someone looking at me from space see me as spinning around?	[ "Yes, but not nearly as fast as you are imagining it. The earth rotates at 1000 mph at the equator, but it still only completes one rotation every ~24 hours. Likewise, you standing on the pole would only rotate once every ~24 hours. So you would be spinning, but just very very slowly." ]	[ "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_" ]
Why do you lose your eyesight when you stand up too fast?	[ "It is a blood pressure imbalance due to how blood flows when sitting vs standing. Standing up too quickly results in the cardiovascular system having to quickly change how its working, resulting in low blood pressure in the head that makes you dizzy." ]	[ "I don't so much think of it as an evolutionary thing. There's really no benefit to being confused. It comes down to computing power. Your brain just takes a minute to recall old information/piece together new information to develop an idea of where you are and how you got there. I'm currently in flight school and...
explain the Israel/Palestine conflict to me	[ "There once was a playground in which two children were playing. Their names were Israel and Palestine. Israel asked, \"Why are we fighting?\" Palestine said, \"I don't know. Let me search for an answer on my computer. There's a search box in the corner of my screen and this question gets asked on a daily basis.\"...	[ "Hi, this is just a reminder to posters to abide by our [subreddit rules](_URL_0_) and remember that unless you're posting an in-depth reply about the history of the issue, your post will be deleted. Pay particular attention to the rules about soapboxing and the 20-year-rule. We don't need discussion of present-d...
How do you cheat at the 3 cup and ball game?	[ "Look up Penn and Teller's take on the three cups and ball trick. They do it with transparent cups and aluminum foil balls, and it's impressive to see just how slick misdirection can be even with the action exposed right in front of you." ]	[ "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." ]
How/why people can oppose genetic research and therapy to fix genetic diseases in the human population?	[ "There's probably some confusion, and they probably know someone with Down's syndrome so you might have hit a nerve. Perhaps they were confusing gene therapy with the current solution: genetically testing fetuses and aborting them. Some people take issue with that. Perhaps they were confusing gene therapy with eug...	[ "LGBT is a protected class for discrimination purposes. Being a anime fan, race car driver, or avid no shirt wearer are not protected classes. Business owners have a right to refuse service for any unprotected reason. Denying service on the basis of a protected class such as race, sex, sexual orientation, etc is il...
why is blood pressure an important health metric? And how does sodium affect it?	[ "High blood pressure can often indicate blockages in blood vessels, or hardened vessels, and this makes the heart work harder than it needs to. More work means the heart wears out faster. Sodium affects blood pressure because it pulls water from the body into the blood. More water means more blood volume, and that'...	[ "It allows google to collect a shit ton of data about you & charge more for advertising directed at you online. If you are not the customer you are the product" ]
Why did the English government decide to allow to sell their expertise during the industrial revolution?	[ "Could you clarify what what government owned technology you are referencing? Most of the industrial revolution in England was driven by the private sector IIRC." ]	[ "So, I don't know if you know this, but Blackstone did just what you are suggesting. After the housing crash of 2009, they went out and bought up homes in different cities. They put them all under the umbrella of a REIT (real estate investment trust) called \"Invitation Homes\" and then spun it out in an IPO a few...
What is the psychological mechanism that causes things like songs or food to "get old"?	[ "While you wait for the scientists to show up, here is the Wikipedia entry on [The Coolidge Effect](_URL_0_): > In biology and psychology, the Coolidge effect is a phenomenon—seen in nearly every mammalian species in which it has been tested—whereby males (and to a lesser extent females) exhibit renewed sexual int...	[ "Because our minds are not processing new material. Our brains are good at pattern recognition so when we see something we remember, our brains don't have to work as hard to take it in. I theorize that this is one of the reasons most sequel movies aren't as good as the original. In the first movie part of the exci...
I'm a man living in Tennessee in 1861. I'm against the Confederate cause and refuse to help fight for them. What choices do I have? Will they let me leave and join the union? Will I become a prisoner of war?	[ "OP, you need to clarify: are you white, black, Native, or some class of immigrant? Rich or poor? Are you (presumably) free or are you a slave? How old are you? There are a lot of variables to \"a man,\" and most males wouldn't have fought at all." ]	[ "Iran promised to delay making nukes for 10 years, and allow international inspectors to confirm this. Other countries agreed to free up Iran's money and loosen some sanctions. There are many argumentative positions, like why 10 years and not 25 or forever. These were negotiated in multi-party talks. The deal is t...
Do we have any authentic messages sent from Mohammad to rulers of different faiths?	[ "I'm curious about this part: > Do we have any authentic messages from Mohammad to nearby rulers of other faiths? Specifically in light of the [Donner thesis](_URL_8_) that suggests (convincingly, to my mind, given the relatively parallel history of the other monotheisms) that \"Islam\" wasn't really a separate re...	[ "Hey there, Just a reminder that /r/AskHistorians is called AskHistorians for a reason: we want to see original, in-depth, comprehensive answers based on solid research - not just looking at Wikipedia but engaging with scholarly research on the topic. If your knowledge on this topic isn't up to this standard, we ...
What’s the difference between firmware and software	[ "Firmware is a set of programs and routines that are built into the device running them. They are typically essential for the basic operation of the device and are not usually accessible by the user. Software is a program that the device runs such as an application or a printer driver. Software can usually be inst...	[ "Salt & Pepper season our food. They make it taste better. Spices & Herbs flavor our food. They make it taste different. Season everything. source: Chef." ]
What would be the best/ most plausible way to go about generating artificial gravity to allow for long-term space flight?	[ "If you mean \"long term travelling to a distant location\" (so your goal is to keep moving), then the best thing is to just constantly accelerate at 1g towards the target. Once past the midpoint, you would turn around and decelerate at 1g until you get to your destination. Now, if on the other hand you want a spac...	[ "* Your brain needs the right amount of oxygen in order to work properly. * Oxygen travels to the brain in your blood. * When under high g-forces, blood is either forced down to your legs, away from your head (causing a \"black out\"), or up into your head from the rest of your body (causing a \"red out\"). * An ox...
Why do charley horses (the type of painful muscle cramp) seem to mostly happen while you're asleep?	[ "Because you sleep in weird positions and your muscles can't properly relax, or it's too cold and your body won't bother shivering, but the muscle still has to warm itself up,so it stays active and pulsates,and eventually it gets stuck" ]	[ "There are a few factors at work here : Moſt chairs are deſigned to ſit at about knee height ; they generally ſupport your back, and more importantly, your butt and legs. Toilets are uſually lower, and they are made with a large hole in the middle, into which you ſink a little. This lower height, lack of ſupport,...
How do stoplights know I'm there?	[ "The lights know your there a couple ways. Most common is what we call an induction loop. Basically copper wire is placed in the asphalt in a loop then a small amount of electricity is fed into that loop of wire. When your vehicle stops over this loop of wire the metal from the vehicle changes the amount of inducti...	[ "Google Android has a feature that sends location data to the google servers, even if you have GPS turned off. If you use a Google Android phone, you can actually view your own data if login to Google and goto this site: _URL_0_ What Google is doing is fetching all this data that is sent from all the Google Android...
What occurs in the body that causes premature ejaculation	[ "Biologically speaking, premature ejaculation is the way to go. Evolution rewards behaviours that lead to more offspring. If the male ejaculates early, there is a chance that fertilization will occur. If the male delays ejaculation coitus could be interrupted before completion, the female could lose interest having...	[ "Would you want to have sex with something you find unattractive? There's a reason you find it unattractive. The person doesn't fit your mental model of an ideal mate. Also, stress hormones can affect the ability tonorgasm as well, which is why ED is a common side effect of people under a lot of stress." ]
What do we about Proto-Indo-European living conditions, religion or culture?	[ "There is a book called \"The Horse, the Wheel, and Language: How Bronze-Age Riders from the Eurasian Steppes Shaped the Modern World,\" by David Anthony. It focusses exclusively on the Proto-Indo-Europeans. I have not read it yet, but it should be a good resource to answer your questions." ]	[ "They probably didn't. [Sweet potatoes, a south american crop, are found in Polynesia](_URL_0_), and [chicken, an Asian bird, is found in south america](_URL_1_), both pre-contact. Also, [Polynesia DNA is found in south america](_URL_2_)." ]
How do different antibiotics target different parts of the body?	[ "The thing about antibiotics is that they only effect bacteria, which are very different from your cells (if you’re 16:bacteria are prokaryotes and your cells are eukaryotes). So as previous reply said, the antibiotics disperse throughout your body and attack the bacteria... all of them. Including the good ones in ...	[ "Depends on the type of Anti-Malware program it is. The first kind of protection is signature based. This means that there is some database that exists that lists the signatures of known malware and if it's detected, the program is notified. So this only works when the malware is known to exist. The second is ano...
Are there any incidents of diseases jumping the species boundary from humans to animals? Was it bad? We know the reverse is pretty bad for humans.	[ "It's called reverse zooinosis. There is at least one case of a cat catching swine flu and dying from their human. Mumps and salmonella are two as well along with tuberculosis and MRSA." ]	[ "Xenotransfusion has been attempted in the 1600s, with mixed results, with sheep blood. Ape and chimp blood might work, as would pig blood as they all have similar Rh factors. Source: _URL_0_ Also, dog to cat transfusions can be done, bit only once as the cat will make antibodies to the blood. Also, apes, dogs, ca...
Why do glasses make your vision worse temporarily?	[ "Because your eyes adjusted to the glasses so when you take them off they have to adjust back" ]	[ "Almost every modern optometrist will have a machine that can automatically determine your prescription. You might have used one; it's a machine that asks you to focus on a picture through a small lens. The optometrist will use the results from this machine as a starting point. The subjective tests are still used b...
why do some people instantly fall asleep on car rides?	[ "Not going to be a full comment but I will give it a go. Vibration. Everybody reacts to different frequencies in odd ways (brown noise) the constant vibration of the car will cause drowsiness. The reason opening the window helps is not the breeze it's because the frequency of the vibration has been changed. I work ...	[ "Its something you are trained practically since inception. Being snug in a blanket or sheet imitates the womb which gave us comfort in the early years of our life. Infants and young ones can often be calmed just by wrapping them in baby blankets. edit:conception*" ]
If I drive my car at a constant velocity, then take a turn around a corner, I feel the force of acceleration. Assuming that the earth is traveling a constant velocity (universe expanding etc.) and yet it "turns" around the sun, why don't we feel this acceleration?	[ "~~Because it's a really slow turn. The force at its greatest is approximately 0.000000000000000024 g, if you're a 70 kg adult that's the weight of a human hair.~~ EDIT: Whoops, my bad. Thanks for all the comments below me. Earth is in free-fall around the Sun, so there is no centrifugal force because you are *also...	[ "The Universe is a dynamic place. Stars have been observed to move around, some quite fast. We have seen a number of [supernovae](_URL_6_) throughout the centuries, including many in other galaxies in more recent years. [Supernova 1987A](_URL_3_) has changed since we first saw it (this is really the post-supernova)...
Why does my heart skip a beat when I get scared/nervous all of the sudden?	[ "You're feeling your [flight-or-fight response](_URL_1_), which (among other things) winds up releasing [adrenaline](_URL_0_) into your bloodstream. The sharp change in heart beat and breathing rate, as well as the dilation of blood vessels, can make you hyper-aware of your heart beat at the same time that it is ch...	[ "Read Nightwatch by Sergei Lukyanenko. It deosn't give an actual reason, but the made up one is pretty cool. Russian distopic modern fantasy. Seriously though, my guess would be either: 1. Extra energy (I sometimes just start running places too.) 2. Seeing a little critter or something that you don't." ]
Why are the keys on a piano arranged with the low notes on the left and the high notes on the right?	[ "Most people are right-handed, and in lots of pieces of music the low notes are used to provide a relatively simple foundation for ornamentation done at higher pitches. It therefore makes sense to have those higher notes more accessible to the more-agile right hand. \"Left-handed\" pianos, with the keys running the...	[ "If you ask for 1 pen, it costs you two dollars. If you ask for 100 000 pens, they will only cost you one dollar each. I prefer selling you 100 000 pens at half price, than selling you 1 at full price and have 99 999 sitting around doing nothing. In a similar way, if you ask for a small amount of money, you pay a b...
Why do humans get a random high pitched noise in the ear that dissipates quickly	[ "I know what OP is talking about and absolutely no one in the comments is addressing what he's talking about. It's definitely not tinnitus and it is not electrical appliances. It is a loud, distinctive high pitched noise, sounds exactly like the sound effect they use for a flashbang in video games. It lasts for a f...	[ "You could have [tinnitus](_URL_0_). You should see a doctor if you want any further information, since asking for medical advice is not allowed in this forum." ]
Who decided where continents split up?	[ "The continental divides are kind of arbitrary and based on traditional designations based on incomplete information from ancient times. The Greeks and Romans distinguished the start of Asia at the [Bosporus](_URL_0_) but didn't realize that landmass extended back to connect to eastern Europe. Russia is in both Eur...	[ "[From a few days ago.](_URL_1_) Short answer - paleomagnetics. Edit - As to accuracy, I don't think that's something we can know as no one was around to observe and record it. All we can do is look at the evidence and interpret, which I think we've done a pretty good job of. The branch of geology dealing with curr...
Why do we make our weekend parties run during the hours we normally sleep? Why not party and disco during the hours we are awake every other day of the week?	[ "People in their 20s and early 30s often have to work weekends and may have other errands to run during their days off. By putting the start time late at night you're ensuring that everyone is actually available." ]	[ "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 large was the fertility difference between victorious and defeated people? Do we all descend from a few victors?	[ "The genes of the victors do spread easily - look at the descendants of Genghis Khan - but look at, say, the [genetic evidence in Britain](_URL_0_) around the Anglo-Saxon invasion. \"When I looked at exact gene type matches between the British Isles and the continent, there were indeed specific matches between the ...	[ "Here's something I didn't see referenced in the three posts linked in the FAQ. There's a genetic mutation called Delta 32 or [CCR5](_URL_1_) that is believed to impart resistance to the Bubonic plague (and possibly HIV). Apparently this gene is more prevalent in Scandinavian and Slavic bloodlines. There's another ...
How can the USA maintain a decent credit rating while at the same time constantly having problems with increasing its debt ceiling?	[ "Because it is entirely an artificial problem. It is like a wealthy person who is kind of disorganized and forgets about certain bills. They have the money and are able to pay it, so the bank will loan them more, even if they are sometimes a little late." ]	[ "In addition to what others have said, sometimes new information can change things. For instance, a candidate might make a campaign promise to never interrogate people. When he gets into office, he finds out that 10 terrorist attacks in the last year were stopped because of information found while interrogating ter...
Could you beat a magnetized piece of iron until it loses it's magnetism?	[ "It is possible to demagnetize a ferromagnetic material with high pressure or force but for iron the stress needs to be similar to hearing to 1000 Kelvin. A way easier way to do it is using electricity specifically high frequency alternating current. The magnet will try to align with the direction of the field but...	[ "There is something similar called the nocebo effect: if you believe something will make you ill, it will. This is what is seen in people that get a rash from being near a Wi-Fi router - whether it's turned on or not. It's not the Wi-Fi signal that's causing the rash, it's the belief. Whether the same is true for...
for shows like Drake and Josh that have the audience in the background that laughs and makes sounds appropriate to what's going on, what exactly are they?	[ "In some cases, the audience is a live audience. These audiences may or may not be told when to laugh. In others, the sound of an audience laughing may be dubbed in. Specifically for Drake and Josh, all my sources suggest it's prerecorded and added in later. (But can you imagine how awkward those laugh track pauses...	[ "If you are adding waves together from unknown sources you get what is called \"Incoherent addition.\" Which is to say, you don't know if you have \"constructive\" or \"destructive\" interference between all of the sources. The average interference is what gives you the \"incoherent\" value. The normal value we use...
Is it possible to make hydrophobic windshields?	[ "It can probably easily be applied fairly easily to a windscreen. more importantly: how does it effect other features of a windscreen? UV, surface contact with OEM and aftermarket wipers etc? how does it perform under fast speeds when water's being pushed up the windscreen? Does it degrade? and if so, how expens...	[ "Because it doesn't seem to work very well. Almost all of the sources for that article are news releases and news coverage, with very few peer-reviewed journals that actually document the results of their experiments. Unfortunately, this is the modus operandi for scammers, or those who just continue to believe in...
What makes the 'great writers' of history so great compared to today's writers?	[ "English Lit Majors. The older authors tend to get built up so much by academics as to be unassailable to them, in a sort of endless cycle. I'm not saying that some of the classics aren't great, but their status as classics also artificially inflates their value. Especially when educators insist on having students...	[ "Hi - we as mods have approved this thread, because while this is a homework question, it is asking for clarification or resources, rather than the answer itself, which is fine according to [our rules](_URL_1_). This policy is further explained in this [Rules Roundtable thread](_URL_3_) and this [META Thread](_URL_...
How do you measure the amount of molecules in a vacuum?	[ "There's all kinds of sensors that can measure the pressure in a vacuum. If you know what kind of particles you primarily have in the vacuum you can determine the amount of those by the measured pressure. One example is the ion gauge. The easiest ion gauge is a hot filament that produces free electrons. These are a...	[ "Go to a new area of Australia (or wherever). Comb one acre very carefully, cataloging every species. Figure out how many new species there are. Do this in a few different places, figure out about how many new species there are in general, and extrapolate." ]
Why does a broken mirror show many tiny images instead of one image with lots of cracks?	[ "The glass is all pointing in slightly different directions, and so the light reflected off of each little surface is coming from a different place before being reflected to your eye." ]	[ "Do you have a fly screen over the window? If so what you are observing is a [Moiré pattern](_URL_0_) being projected onto the window. Essentially the light is passing through the screen and the light waves get split up and then interact with each other causing spots of superposition where some regions are darker a...
Why is there such an anti-union mentality among many Americans today?	[ "Unions were blamed for the cost of goods and services. At the time when steel etc was being produced overseas for very cheap but very garbage quality the price here was higher. Add in some liberal politicians and they blamed the unions for causing the price of everything to be 'high'. This mentality spread and ins...	[ "\"Just about everyone here\" Where is \"here\" for you? It sounds like your question's premise is based on a small sample set based on personal observation. Before your question is addressed, you should be making sure the premise is valid..." ]
Has Elysium Health actually created a viable anti-aging pill or are they just snake oil-sales people?	[ "Looking at their site and what I know of the state of the field I'd say that they are: * Genuine researchers interested in anti-aging technology * Using the fact that supplements don't need to be FDA approved to put out a product that they don't have to back up with clinical trials^(#) * Probably using money from ...	[ "Nearly all scams are against the law, and intentionally advertising an unlawful scam is also usually against the law. The problem is discovering, and proving, that it's a scam." ]
Why does everyone’s house smell different?	[ "Between the materials of the house itself, the materials of the furnishings, the various and specific cleaning chemicals and soaps used, body fragrances used, and the body odor, you'll get a fairly unique smell for each family's dwelling...possibly similar to a fingerprint." ]	[ "Neural adaption. Basically, your brain only cares about a change in stimuli rather than every stimulus that comes along. Your brain knows how to ignore a stimulus if it isn't changing. So, if you are tasting/feeling the same thing all the time, your brain is going to ignore it." ]
Could you exploit the wave like nature of a photon's field to run an engine directly on light?	[ "[Coherent lasers are used to control the motions of particles in experiments requiring very low temperatures](_URL_0_), so the answer to your question in terms of technicality is \"yes.\" We could build a crystal and affect its angular momentum with photons. Efficiency is another matter." ]	[ "The formula E = mc^(2) holds only when in the rest frame of the particle (or system of particles). A single light particle has no rest frame, and so it's not the correct formula. The full formula, valid for all particles (massless or not) and in any frame is E^(2) = (mc^(2))^(2)+(pc)^(2), where p is the mo...
What is with Old Man Strength?	[ "Saw some changes in myself and delved deep into a similar question a few years ago. Hope this info helps :) Until about the age of 26-30 (on average), males are still growing and maturing. Due to this growth much bodily effort and resources are dedicated to these changes. Once this growth stops, more bodily resour...	[ "Maybe because the person picking you up isn't 10 times your size so it wont go with the same ease?" ]
If you were to bring an electric compass into orbit, what heading would it display?	[ "An electronic compass works on the same principles as a mechanical one, only without the floaty bits. It will work pretty much the same. In orbit, it will point to the earth's magentic poles, in deep space, it would align itself with any magnetic field it can find, or point to nothing in particular if no field wer...	[ "hi! you'll find a few comments on map orientation in this FAQ section * [Why is north shown as \"up\" on maps?](_URL_0_) and this recent post has a comment on the cardinal directions in general, plus links to several more related posts. The quick tl;dr is that the directions we currently use are relative to the su...
Why are our spacecraft so slow? What prevents us from building a probe that could reach Pluto in weeks, not years?	[ "To get from Earth to Pluto in 2 weeks would require a ship able to sustain an acceleration of ~1.6 G for the whole trip, with a total delta-V of 20000 km/s. If we devote a full 90% of the ship's mass to fuel, our engines will need a specific impulse of 885412 s. Chemical engines have specific impulses in the 200 t...	[ "This is akin to asking why we don't have a cure for mosquitos. After all, couldn't someone just analyze the smell and appearance of mosquitos, and then develop a micro robot that specifically targets them? The pathways you describe are active research pathways, so far as I know. But research is hard, and actually ...
What’s the difference between brown rice and white rice?	[ "Rice is a seed. White rice has the whole outside of the seed removed so all that is left is the white carby bit at the center. Brown rice saves part of the outer layer, giving you a whole grain fiber. Whole grains are better for you because they have more fiber. Fully processed grains have much longer shelf life."...	[ "Here's a pretty good explainer. _URL_0_ Basically it comes down to different memory, different promises (reliability and service life), and different marketing." ]
How do contact lenses stay perfectly centered on your eye and slide/rotate back into place after you move them aside?	[ "Your eye isn't just a perfect sphere. The lens is actually a bump out from the surface and the contact is curved. Staying on the lens then is preferred because sliding off would require pulling away or deforming the contact." ]	[ "[This image](_URL_1_) shows what's going on. Ignoring the Sun and just taking the Moon into account, you can see that the tides want to move with the rotation of the Earth but are being pulled back, so to speak, by the Moon's gravitational influence. So, the [naive picture](_URL_0_) is not quite right, in that the...
What is the difference between Shell, Bash, Zsh and terminal?	[ "* shell - a program that provides a command line interface to the operating system, especially with Unix/Linux * sh, csh, ksh, bash, zsh - examples of specific shell programs * terminal - used to mean a keyboard and monitor that could connect to a remote computer...now it usually means a program that runs a shell ...	[ "The internet predates websites. Back in the day, there were several types of non-web internet sites you could go to, and they often used different prefices: * ftp - upload and download files * telnet - miscellaneous text based interface * gopher - text based hyperlinked site So if it was 1993, and you were at Stat...
What would happen if nearly all taxes were raised in the USA?	[ "Then we'd have less money and the government would have more." ]	[ "If you have Netflix there's a very good documentary titled \"the world without US\" It explains your exact question." ]
Why can't reptiles regulate their bodyheat but mammals can?	[ "Because they never evolved the necessary organs/glands/nervous system/bits and pieces to regulate body temperature. They've never needed because being cold-blooded does grant certain advantages in the environments that reptiles have evolved in. While dependent on ambient temperature, they possess a greater degree ...	[ "Every kind of power generation scheme generates a lot of heat, simply because we use that energy in various ways and entropy takes over. Even if your power source was somehow 100% efficient in generating electricity from fuel, your computer or washing machine still convert all that energy into heat. Some industria...
Why are there no heavier isotopes? (like C15)?	[ "There is a carbon 15, but it lasts an average of 2 seconds before decaying. When examining the stability of an isotope, you look at the different ways it can decay (beta-minus decay, beta-plus decay, alpha decay, neutron emission, etc) and the daughter nucleus would be produced. If the daughter nucleus has a lower...	[ "A couple reasons. In the United States, the burden of proof is on the prosecutor to show that the defendant committed the crime. This \"presumption of innocence\" makes preparing a case hard work, because to win, the prosecutor has to convince 12 regular people that, with absolutely no doubt, the defendant commit...
why are textbooks in higher studies courses so expensive?	[ "Most basic answer... because they can. Students are usually required to get the books and the companied know that they can charge whatever the want. The students don't have much choice." ]	[ "Dates back to ancient Rome. In a lot of old languages, they hadn't invented the space or the period yet. Like just long unbroken strings of letters. So they started making the first letter of a word huge to indicate new paragraph. The tradition kept, and in the middle ages, they'd hand write/paint a huge fancy let...
Why in tennis does the score go 15 to 30 to 40? Why isn't it even jumps between them	[ "Played tennis for a good part of my life and the explanation I got was that it came from a French game that when you scored the first point you moved up 15, when you scored again you moved another 15 and if you scored a third time you only moved up 10. So in other words blame the French." ]	[ "Look at a book from the top of the spine sometime - you will see that the paper is glued in bundles - 8 sheet/16 pages per bundle. It is very cheap to make books with these bundles, so almost all books are printed this way. This means that the final page count needs to be a multiple of 16. Some of this can be ta...
How is today the real American Independence Day?	[ "From the [Washington Post](_URL_0_) (and their linked [National Archives](_URL_1_) page): People are saying that today is the real Independence Day because on this day in 1776 the Continental Congress voted in favor of declaring independence. The actual document, the Declaration of Independence, was adopted on a...	[ "This CGP Grey video does a really good job of explaining it all. _URL_3_" ]
Why does opening just the back windows in car while driving create this annoying sound effect but opening just the front windows or both front and back windows cause no such effect?	[ "The resonant frequency of a chamber changes when it's open at one end vs being open at both ends. FWIR it's different by a factor of two [1]. So if you're driving a certain speed, and that's able to drive a vibration frequency in your car, when you \"open the other end of the chamber\" the same wind speed will lik...	[ "[This image](_URL_1_) is not a 747, it's a Fokker - but you can see on this type of aircraft how reverse thrust works on jets much more clearly than on a 747. The Fokker deploys buckets behind the jet exhaust. These buckets reflect the exhaust forwards, instead of the normal mode where jet exhaust goes backwards. ...
When was the last time the Speaker of the United States House of Representatives voted?	[ "The last time a Speaker voted was a lot more recently than 20 years ago. Unfortunately that means this question can not be answered without violating the rules of the sub, something I am loath to do on a political question less than 4 days before an election. Therefore I suggest anyone who might be interested in ...	[ "Are DoD Employees working again? Yes, and No. A large portion of DoD has returned to work, based on the legal interpretation of POMA [(Pay our Military Act)](_URL_51_) by the Secretary of Defense. In short, civilians that are considered to be \"helping/supporting the military\" were told to report back to work...
I saw in a documentary about Testosterone (many years ago, can't remember the name) that the hormone had a direct effect on penis size in male fetus'. Is there any truth to that? Does having more Test as a fetus help you develope a larger penis?	[ "Very simply, no. Testosterone does help the development of secondary sex characteristics, but penis size is based on characteristics such as genetics and ethnicity, not fetal testosterone levels." ]	[ "Say you have a hammer and nail. If the hammer head is bigger than the nail, then the force of the hammer is distributed evenly against the head of the nail. The nail will go straight into the wood. Now say you have a hammer and a nail, but the nail head is bigger than the hammer. When you hit the hammer against t...
Why do people say to never wake a person who's sleep walking?	[ "Because people are fucking stupid. It's possible they'll be out of it when they come to. But they're currently asleep. Can't get much more out of it." ]	[ "Basically it is becaise no one wants to get in between two 6 foot+ 220 lb men swinging haymakers at each other. That, and it's just part of \"The Code\"" ]
How can porn companies release a leaked, private sex tape of a person unwilling to release it?	[ "If a porn company \"releases\" a tape/DVD for sale to the public the participants have agreed to it. (ie the Pamela Anderson tape) The \"I dont know where they got this\" or \"It's terrible that they're releasing this tape\" are all lies to make the tape seem like forbidden fruit. Now, in regards to an online se...	[ "Depends on the country. Some countries have laws in place that ensure equal service for all providers using the same network, i.e. the network owner aren't allowed to diminish the service in any way for providers who \"rent\" their network. As for your particular example, they're both owned by the same corporation...
Why is it fine to inhale "evaproated" water but bad to get liquid water into your lungs?	[ "It does not have anything to do with water being bad for your lungs. It has everything to do with oxygen being good for your lungs. Obvoiusly you know that your lungs must exchange oxygen and CO2 or you will die. Your lungs can't make that exchange if they are full of water. The water will displace the gaseous oxy...	[ "Hot air carries more moisture than cold air. When hot air full of moisture approaches a window (or any cold surface), the air cools and the water in the air condenses onto the surface. To counter this, buildings either have air vents next to the windows (similar to a windshield in a car) or have double/triple pane...
Who are the "regressive left" and why is their political stance a problem for society?	[ "The 'regressive left' is a very small but very vocal group that could best be described as a \"liberal\" equivalent to the alt right. I put liberal in quotes because they really aren't that liberal. This question is loaded and will probably be removed, but here's what most people have a problem with. First is that...	[ "Before a judge makes a decision, they usually have two arguments (one from each side). Sometimes the arguments are faulty, incorrect in some precise legal way. These are the easy cases. The interesting cases, like the Obamacare case you cite, have two arguments that do not have a clear legal fault. In these cases,...
Why does food seem to taste better when it is warm?	[ "Chemical reactions occur more quickly in warmer environments. So maybe that. However some food tastes better cold. smoked salmon, ice cream, alcoholic spirits. The essentials really. I suppose the taste of a food is made up of lots of different chemicals. These chemicals will have different temperature dependencie...	[ "It's called the \"mere exposure effect.\" Simply being exposed to something will make people like it more than something they've never been exposed to. In terms of evolution, this makes sense. Things that are familiar are more likely to be safer than things that are unknown." ]
Why am I getting carded for OTC meds like Nyquil and Acetaminophen?	[ "Some states will only allow a two box minimum purchase of any OTC medication that has a decongestant in it because people will go from store to store, buying boxes of it for meth labs. The stores want ID, just in case you happen to be making meth and not a cold/allergies/bronchial issues." ]	[ "A) find somebody older who looks similar (older sibling, friend/stranger with similar features) B) some people can use a marker and nailpolish to change the numbers in an ID C)novelty or costume store will make you a fake that looks real, but sell it as a \"prop\"" ]
How do new species "emerge"	[ "Evolution is gradual, and happens to a population, not an individual. At no point does an animal of one species give birth to an animal of a different species. Rather, small changes accumulate over time. Speciation happens when something separates a population. The two populations will slowly change in different w...	[ "Yes, the gene pool would be very shallow. They decided that was better than being extinct forever." ]
Why can I sometimes feel my heartbeat in places where my heart isn't?	[ "You are feeling your pulse. Your arteries are a the tubing that moves blood around your body. When your heart compresses, it pushes blood into your arteries. This isn't a perfect analogy, but imagine that you are holding the end of a long water hose. At the far end near the water tap, I use my hands to \"kink\" th...	[ "Those anti theft scanners use electromagnetic fields to detect those magnetic sensors that are attached to the clothing (and removed by the clerk upon checkout). As you walk past, these electromagnetic fields will induce some alternating current in your earbuds, and that's where the buzz comes from." ]
If our cellphones have more computing power than NASA when we went to the moon, why isn't it exponentially cheaper now to go back and keep going back?	[ "The computers aren't what were expensive about getting to the moon. The issue was and continues to be fuel cost and the actual ships/shuttles themselves." ]	[ "This is akin to asking why we don't have a cure for mosquitos. After all, couldn't someone just analyze the smell and appearance of mosquitos, and then develop a micro robot that specifically targets them? The pathways you describe are active research pathways, so far as I know. But research is hard, and actually ...
How do insects think or make decisions?	[ "They have neurons like those of any other animal. Their neurons are connected, and pass signals to each other, receive signals from sensory input, and transmit signals to muscles. Even a single neuron is capable of making a decision (firing or not based on the input to it), a huge number are not needed for less co...	[ "Confirmation bias. They may well land on your light bulb. But you're not staring at your light bulb for hours and hours on end, so you wouldn't notice it as much." ]
Is there a way to explain classical physics using quantum physics?	[ "Quantum mechanics will tell you how the position and momentum of a system evolve over time given some external potential, and you can use [Ehrenfest's Theorem](_URL_0_) to relate this to an average force acting on the system, which is the gradient of the potential." ]	[ "It can and does. Check out the double-slit experiment. _URL_0_" ]
What is happening in a video game loading screen and why do many current generation games have ridiculously long loading screens, when other graphically intensive games have so much shorter loading times?	[ "This is a huge bug bear of mine when restarting a level, why does it need to reload so much. Apart from a few markers where certain elements are it shouldn't need to reload the whole level, surely?" ]	[ "When you write a computer program the compiler compiles the code into a machine readable executable code which is not human readable. For example a python program named _URL_0_ creates _URL_0_c similarly foo.java creates ~~foo.jar~~ foo.class .... (See correction below as pointed by /u/Schnutzel). Now you can ta...
Were the Romans/ Greeks tolerant of other religions?	[ "It would often depend on the religion and it's practices. They could occasionally see some of their gods in another religion, and co-opt them in a way; Egyptian religion was the big one, with most of their gods being compared or equated with others. The Greeks and the Romans did it between themselves; many Roman g...	[ "This isn't the exact answer to your question, but a [similar question asked earlier today\\](_URL_1_) got an answer that covers some of the ground you're interested in. And as another commenter mentioned, there is a section of the [FAQ](_URL_0_) dealing with views on homosexuality in the past, which you may find ...
People are afraid to eat raw eggs, but mayonnaise is essentially just eggs and olive oil, so is there any difference?	[ "Store bought mayonnaise is Pasteurized (heated above what bacteria can survive) so it's sterile until the seal is broken." ]	[ "Here are the [EPA/FDA recommendations](_URL_0_) for women who are pregnant, may become pregnant, or are nursing, as well as children: > Eat up to 12 ounces (2 average meals) a week of a variety of fish and shellfish that are lower in mercury. > > Five of the most commonly eaten fish that are low in mercury ar...
Why is China's pollution so high?	[ "If you want rapid growth in a massive country, and care little to nothing about the environmental issues like clean water, clean air, and pollution... you're going to get bad air, bad water, and pollution with 10+ years of phenomenal market growth and development [say, 10% growth a year which is high]." ]	[ "When they release it back to nature, they want the micro-organisms to have a head start, so that it is digested as soon as possible. Air lines are a really cheap way to increase this effect." ]

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