Subset (10)

eli5 · 25k rows

Split (1)

train · 25k rows

query stringlengths 20 300	positive listlengths 1 1	negative listlengths 1 1
How did the US and Canada, two countries with similar colonial and geographic backgrounds, end up so different in terms of political cultures?	[ "Their colonial backgrounds aren't very similar at all. Canada didn't become functionally independent from the British Parliament until 1931, and not entirely so until 1982. Predictably, Canada's political culture is much more similar to Britain's. Not to mention that many of the United States' founders were specif...	[ "This question is getting a lot of traffic after being [tweeted by @reddit](_URL_5_), so I thought I'd welcome those of you that haven't visited /r/AskHistorians before to the subreddit. Please do bear in mind that in order to keep the quality of answers here high we have [strict rules on comments](/r/AskHistorians...
The poorer quality of life in the Eastern Bloc compared to the West is often cited as evidence of the inferiority of centrally planned economies. However, Western Europe got a huge head start with the Marshall Plan. How important is this variable when contrasting West/East during Cold War?	[ "Related: how did the annual GDP growth rate compare for Eastern bloc and Western European countries throughout the Cold War? Did Eastern Bloc countries end up being poorer because they had slower growth, or because they started out poorer?" ]	[ "In \"We Now Know: Rethinking Cold War History\", Gaddis says that Mao acknowledged that Americans might use the atomic bomb against the Chinese, but he thought that China's huge manpower reserves would compensate for that. On the other hand, he also seemed to rely on Soviet nuclear capabilities (which were limit...
When the 40h work week was first implemented, did a lot workers complain about losing hours?	[ "One recent example you might look at is the 1992 shift from a 40-hour to a 37-hour workweek in Denmark. I don't know in detail about how it was managed, but I believe the goal was to keep incomes relative stable across the transition. For salaried employees that was easy (they just continued to get the same salary...	[ "I recommend reading 'At Home' by Bill Bryson. He goes through this in detail. From what I recall, houses used to be just one big room, animals, people, servants all in the one place. Over the centuries, people got bette at building walls, so they built these buildings higher - this showed your wealth and was much ...
Did Alexander the Great know that the British Isles existed?	[ "[Pytheas](_URL_0_) was a Greek explorer from what is today called Marseilles. He journeyed to the Tin Islands (Britain) sometime around 325 BCE and wrote a book about it, On the Ocean, that has been lost to history except when referenced and disagreed with by later geographers. Before Pytheas, the existence and l...	[ "Follow-up question, in case it's not mentioned in the answers to OP: How does Braudel's work compare to more recent work on the Mediterranean, especially David Abulafia's The Great Sea - how do their approaches and goals differ and where do they disagree?" ]
Why do we blackout when drinking?	[ "I've seen this question before. Too much alcohol prevents the process of writing short-term memory to long-term memory, so you don't really notice you're blacking out in the moment, but can't remember what you did the night after. You can't really get back the memories. I don't know all the contributing factors. I...	[ "Gravitational time dilation happens near any object, no matter how big or small or how heavy or light. However, the strength of the effect depends on the strength of the force of gravity. Outside a star, the effect is relatively small. But when you turn that star into a black hole, it becomes much more dense and c...
Considering the fact that we've taken underwater vehicles (like James Cameron's deep sea challenger) to nearly the maximum known depth of the ocean, why haven't we begun to explore the ocean more?	[ "Because the deep ocean is really really big and boring. Most of the ocean is a desert, there is just nothing there. We can dredge the bottom and send unmanned probes, and for the most part we just find more nothing. Life on earth depends, directly or indirectly, on the sun or deep ocean vents. If you aren't clos...	[ "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 ...
Are there any cultures where male concubines or multiple husbands have been common?	[ "I've been out of academia for a bit so I don't know how much weight this still has, but when I was in my Anthropology courses we learned about Tibetan polyandry. Basically, Tibetan inheritance rules dictated that each married son got a portion of the family's estate. As such, if each son married a different wife t...	[ "The Assyrians had Jahve (the Jewish god) in their Pantheon. Which the Jews (or citizens of Judea at the time) found very offensive. In Sumerian and Akkadian times, gods lived in the temples as personified (deified?) stone statues, which they would actually feed and wash and so on. Each city had a patron-god, like...
On a DVD remote, why is the pause button symbolized by two lines? What about play and stop? (Sideways triangle and square, respectively.)	[ "I believe the pause symbol originated from the Caesura symbol. In music the Caesura indicates a brief pause and the symbol is two parallel slanted lines like this: // _URL_0_" ]	[ "[In general the dot/shape pattern you see after passing a beam through a regular obstruction is the Fourier transform of the obstruction. This is basically the principle behind the various types of diffraction imaging: shine a beam through a crystal and it will diffract into a pattern of dark and light spots, with...
How do things like mRNA physically move into/out of a cell's nucleus, and how is it co-ordinated?	[ "The long answer is fairly intricate, but basically, a finished mRNA that is present in the nucleus will have a sequence that indicates it is ready to be exported into the cytoplasm. This sequence is added or modified during post-processing of the raw mRNA transcripts. These signals are recognized by transport prot...	[ "Well the biggest problem in that is that we've never drilled into the mantle. Drilling that deep is incredibly difficult. Then getting radioactive waste down there is not simply a case of dropping it down the hole." ]
How can WIMP detectors exist if WIMP's are hypothetical particles?	[ "Well if we know how the hypothetical particle should react, we can build a detector based on that. If we still don't detect the particle, that's a clue that the model is incorrect. And this is what happened, if Wiki is to be believed." ]	[ "This is called the [\"Ekpyrotic Universe\"](_URL_0_). And according to Alan Guth (one of the principal developers of inflation theory): \"Alternative models to inflation, like the ekpyrotic models that Paul Steinhardt and Neil Turok are pushing, predict incredibly small levels of gravitational waves, essentially ...
What's the difference between brown eggs and white eggs?	[ "There is no nutritional difference between white and brown eggs. They simply [come from different types of chickens.](_URL_0_) There’s actually blue and speckled chicken eggs as well." ]	[ "To be authorized to live and work in the US legally you must be issued a permit of legal residency, commonly referred to as a \"green card\" due to its color. Many Hispanics are in the US illegally due to the porous border with Mexico, leading to the connotations of selecting Hispanic people based on possession of...
If we can never reach 0K, then how did we come up with that number?	[ "Here is a short mainstream history of the kelvin scale: Jacques Charles expanded on work by Robert Boyle (maybe you have heard of Boyle's and Charles's laws) showing that at constant pressure, volume increases linearly with temperature for all gasses he used. When viewing it as a decrease, it showed that volume we...	[ "Watch this video by Veritasium: _URL_1_ I think it answers your questions." ]
Why does ejaculate sometimes come out slowly or trickle instead of forcefully shooting out?	[ "From my experience it depends how much you're being 'pumped' during it" ]	[ "Our brains didn't evolve with cars in mind. They evolved with, like, being hunted by a jaguar (or whatever) in mind. So your brain doesn't know what to do with a car. It thinks hey, we're sitting, our body's not really doing anything physical, there's very little activity or stimulus... this seems like a good time...
Did the musical notes we all know (D,F,G,F-Sharp etc.) basically have to be or was this just one person's selection that ended up working well?	[ "Look at a violin. It has no frets. Violin players play by ear and get it right. So do Bass and viola players. Look at a guitar. It has frets. Guitars have to be tuned. But once tuned they can be played by holding strings down on the frets. We need to define what one note is, how many cycles per second. Double that...	[ "K and W denote the assignment area, general east (w) and west (k) of the Mississippi, the other 3 letters are either requested by the registering party or randomly by the FCC." ]
What if the Earth spun the opposite direction it does?	[ "do you mean the earth's rotation? or revolution? If rotation, the sun would rise from west to east, instead of east to west. Besides that, I don't think much would change." ]	[ "Because the original explorers were Western Europeans, and we've just used modified revisions of their maps since everyone has been used to them. Defining North as the \"top\" of anything is a human attribution, and we could easily make the South the \"top\" of the world. [Here](_URL_1_) is a video from the tv sho...
What's actually happening when I crack my knuckles? Is it any different from cracking my back?	[ "cracking any joints in your body is caused by air bubbles within you joints expanding and bursting due to the stress put on by the expanding of the joints. contrary to popular belief, this does not cause arthritis and has no long term consequences" ]	[ "The inner ear and outer ear are seperated by a layer of issue impermeable to the outside atmosphere called the ear drum, aka tympanic membrane. When the air pressure changes by a large amount, the air in the inner ear and the air outside the ear are not at equilibrium. To re-establish that equilibrium of pressure,...
How can seedless watermelons continue to exist? Aren’t seeds needed for reproduction?	[ "It's the same thing g that happened with bananas! Bananas used to have a pit inside them that was the seed, but scientists genetically engineered the pit out of them decades ago. (Fun fact, the little brown/black specs you see in a bananas cross section is actually remnants of the seed) now, to grow any more banan...	[ "1) The Law of Segregation states what you already seem to know: you get one allele per trait from each parent (the \"segregation\" bit comes from the fact that your parents' chromosomes physically separate from one another when gametes are formed), and you may inherit these in any combination of dominant/recessive...
Why was Venice able to win the Morean War (Sixth Ottoman–Venetian War from 1684-1699) when they had lost the 5 previous wars before it? What changed to allow the Republic of Venice to stand up to the giant Ottoman Empire?	[ "The Republic of Venice didn't fight alone. In 1683, the Austrians beat the Ottoman army at the gates of Vienna. In 1684, a Holy League was formed on initiative of Pope Innocence XI, with the Holy Roman Empire, the Polish-Lithuanian commonwealth and Venice as the most notable members. In 1686, Russia joined the lea...	[ "In 1943, the Japanese Naval Ministry produced Momotarō no Umiwashi (Momotaro's Divine Eagles) and the following year began production on the animated feature Momotarō: Umi no Shinpei (often translated as Momotaro's Divine Sea Warriors). The protagonist of both films was the \"Peach Boy\" of Japanese folklore a...
[Serious] Do we know of or have any records of religious wars pre Catholicism and Islam?	[ "This question [has been discussed before](_URL_0_) on this subreddit. The consensus - as far as I understand it is: yes, but you have to define what you mean by holy war. Pre-Judaism monotheism was a rare thing, most cultures had several gods or whole pantheon. So while people fought in the name of one or more go...	[ "You're going to need to narrow down your time frame here, keep in mind you're asking about a time frame of 1000 years over a very, very large area of land with vastly different cultures. You'll be more likely to receive an answer if you narrow the question down to a more specific time." ]
Why are potassium supplements so regulated ?	[ "Quite simply, the 50-100mg potassium supplements are not likely to increase your potassium level by any biologically relevant amount, and that's totally intentional. Any potassium pill large enough to measurably raise your serum potassium is restricted to prescription-only, because it's potentially deadly. A lot o...	[ "Your answer was removed shortly before you posted this question. It did not meet our standards. We ask that answers in this subreddit be in-depth and comprehensive, and highly suggest that comments include citations for the information. In the future, please take the time to better familiarize yourself with [the ...
What is a DDOS attack. Why are large gaming companies succeptable to them? Do attackers ever get caught?	[ "Basically, it's an attack that floods a server or servers with tons of packets. This prevents people from connecting to them and it can make them stop working. It's distributed meaning that there are huge numbers of computers involved in sending these packets to the sever. There are things like load balance softwa...	[ "Most websites don't care what ads appear. They only care about how much the ad pays per click. So if the website (say reddit) has both a malware ad and a legit say amazon ad, and the malware ad payed $1.50 per click where as amazon payed $0.60 per click they would prefer the malware to stay. Although they cant rea...
How do we know that a star is red-shifted because it is traveling away from us vs a red colored star?	[ "Each element has a very specific and unique set of wavelength that it emits when excited, called its emission spectrum. Say we measured the wavelengths from a star and found that they were all very close to the hydrogen spectrum wavelengths, but all slightly lowered by the same amount. No other element has that se...	[ "Your son is basically describing the theory known as \"Tired Light.\" The reason we don't think tired light is true is that we've never been able to come up with a mechanism that would cause energy loss in photons, yet still match our observed data. For a tired light phenomenon to be true, it would have to: 1) Exp...
If you are living in a cold country, is it still necessary to buy efficient light bulbs?	[ "You have a good point. Such a good point in fact, that when the EU banned incandescent bulbs a German businessman started importing them as \"heat balls\". > The funny thing about this is that incandescent bulbs are fairly efficient when they are used as heaters, throwing off around 95 percent of the energy they ...	[ "Let’s say you’re making cookies. The recipe calls for creaming room temperature butter with sugar. Cold butter will not incorporate well with the sugar, making it grainy rather than fluffy. Then, if you were to add cold eggs to the creamed butter and sugar mixture, the coldness of the eggs would cause that mixtur...
Were the Ancient Greeks at any point aware of the existence of what we now call the British Isles?	[ "The colourful historian Herodotus, who lived and wrote in the Fifth Century BCE, mentions the British Isles as the Tin Islands but expresses skepticism as to their actual existence. This is surprising because Herodotus was not greatly given to skepticism, he mentions giant ants in India, trained to mine for gold, ...	[ "Follow up. Would they be able to figure it out considering the travel times involved in traveling between the hemispheres back then?" ]
Can you really find someones browsing history through Google?	[ "You cannot find someone's browsing history through Google- the only way someone could see this would be if they had access to your computer or phone, or your ISP (the company that provides your internet) gave it away (they can see your Internet history). What you may be talking about is a website that gained some ...	[ "It doesn't work. Sherlock Holmes isn't real; he's just a character people like to write stories about. Nobody could do what he does." ]
How will giving facebook my phone number help "secure" my account?	[ "If they think your account was hacked, or if some other weird thing happens, they don't have to rely on just your email address. They can call you on your phone to get it sorted out." ]	[ "A few reasons that basically boil down to covering of backsides. The more specific a contract is, the less likely you are to be sued. Ambiguity in a contract favors the person who didn't write it. That's why an apartment lease is typically 10 to 15 pages. Most of it is outlining what the landlord expects from the ...
Please explain what occured yesterday with the British elections to an American who is confused, and what does it mean that the PM asked the Queen to make a new government? Sounds daunting.	[ "We have what's known as a hung parliament. This means that no one party has enough seats in Parliament to form a government. One party needs 326 of their MP's to have the majority and form the government. When no one party has enough MP's to form a government in their own right they can team up with other parties...	[ "Your employer takes money out of your paycheck throughout the year to pay your local, state, and federal taxes. The amount they take out, however, is just an estimate how much tax you will probably owe at the end of the year. There's no way for the state, local, and federal governments to know what you actually do...
Why was Rome sacked so much?	[ "Well, Rome wasn't sacked between 390 BCE and 410 CE, which isn't a terrible run all things considered. The numerous (three) sacks of the fifth century came about because the administrative structure of the empire was imploding around that time, particularly in the Western half. Pressures along the frontier and civ...	[ "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?\"." ]
Why are Jewish people defined by religion rather than race? Serious	[ "Jewish refers to both a religion and an ethnicity. Jews from Europe and Jews from the Middle East actually turn out to be very genetically similar, while being dissimilar to other Europeans or Middle Easterners. They share common ancestry in the original Israelite tribes of a few thousand years ago. Not all religi...	[ "This is more of an opinion or discussion question than a concept you're looking to have explained. Not really a topic for ELI5. Maybe /r/askreddit" ]
why does the amount of regular shapes go from infinity to like 5 when making the jump from 2d to 3d	[ "The internal angles at any given vertex have to be less than 360 degrees (or else the shape is flat). Also at any given vertex, 3 or more faces are meeting. So the only combinations of 3+ regular polygons that have additive internal angles of less than 360 degrees are: 3 triangles (60x3), aka, Tetrahedron 4 triang...	[ "1 dimension) meet me at Bologna St. Needs more information. 2 dimensions) meet me at the corner of Bologna St. and Cheese St. Now you know you're in the general vicinity of where you need to be. 3 dimensions) meet me on the 3rd floor of the office building at the corner of Bologna St. and Cheese St. Great, now you...
- Why does Technetium not occur naturally?	[ "It does occur naturally. It's created in supernovas (just like all other elements heavier than iron). But it's unstable, and even its most stable isotopes have a half-life of \"only\" 4.2 million years. Which means that, 4.2 million years after the creation of technetium in a supernova, only half will be left, and...	[ "Here's a few threads that may help you: [Why didn't the Ottomans colonize the Americas or Southeast Asia?](_URL_2_) [Did the Ottoman Empire try to establish colonies like european powers did? Why didn't it succeed or why didn't they try?](_URL_0_) [Why were the Ottomans not involved in colonizing the 'New World'?]...
The U.S.'s strong desire to make Iran the bad guy.	[ "The geopolitics orbiting Iran are complicated. It's a combination of conservative war-hawking at a strong islamic republic, responding to constant baiting from the government of Iran, the potential for Iran to actually have nuclear weapons (regardless of how likely that potential is) and the desire to keep Israel ...	[ "If you have Netflix there's a very good documentary titled \"the world without US\" It explains your exact question." ]
Why do record players require an earthing cable?	[ "/u/whitcwa has the right of it. The ELI5 is: It keeps your record player from acting as an antenna. The record player sends really tiny electric pulses to the amplifier. If you don't ground it, it acts as an antenna and you get to hear your electric lines and appliances and whatever else is nearby." ]	[ "I would imagine so if it gets caught it won't break your neck. Like cat's collars being elasticated so they don't strangle themselves in trees." ]
Why are YouTubers allowed to show video game content in their videos but not movies or songs?	[ "The content is still copyrighted and video game publishers could have it pulled but they mostly chose not to because it's good free advertising for them. They aren't afraid of losing sales if someone sees the game online because people buy games to play them, not just to watch them." ]	[ "Because they would get sued. The legal system isn't like some kind of beep-boop robot that overlooks totally obvious loopholes. Any company that claimed \"No, we were really advertising the endorsement of Bill Gates, plumber, from Bumfuck, Nebraska.\" would get laughed out of court. As /u/Snewzie pointed out with ...
Is it true that beer can be "cooked"? For example, if left in a hit car for a while, then put in the fridge to cool will the taste he dramatically altered?	[ "Beer going bad is generally caused by getting hit by the sun if it's bottled beer. Canned beer will be fine in a warm car. If you have a few six pack bottles in your car just throw something over them to keep the sun off." ]	[ "Air conditioning is based on the principle that the temperature of a gas is related to its pressure. If you compress a gas it increase in temperature and when it expands it cools down to its original temperature. So the cycle of an air conditioner is that it use a compressor to get high pressure high temperature g...
Why/How do chemicals so evenly distribute themselves in water?	[ "It's called diffusion. The molecules in a fluid are all moving around and colliding with one another. When you introduce another substance, those molecules are quickly jostled around also, and so tend to spread out (entropy always increases). Over time, the system will settle into an equilibrium state where the co...	[ "When you take a pill it's not 100% the labeled medication. There are other ingredients that help it do its job and release when and how it is supposed to. Sometimes a medicine needs more extra ingredients to do its job so you end up with a bigger pill." ]
What causes nuclear instability, i.e. radioactivity?	[ "It comes down to the binding energy of the nucleus. If a nucleon can move to a lower energy state by emitting a particle or fissioning, chances are it eventually will. How long it takes to do so is determined by the 'energy barrier' or 'energy hill' it has to climb to get to that other state. Of course, this is ju...	[ "> In all macroscopic situations, it seems like any event that has a probability of occurring in one of multiple ways can really be predicted if you take more detailed and relevant measurements. If you're prepared to take microscopic nondeterminism on trust, then it's easy to see that we have some macroscopic nonde...
Can a skin cell(or any other cell) in our body start producing insulin if those genes are activated in the cell?	[ "Technically yes. The thing is that usually genes so specific to a different tissue (like insulin would be for skin tissue) are in a highly condensed chromatin state (ie. really turned off), so them becoming active is relatively... impossible. One thing scientists can do for example is take skin fibroblasts and ...	[ "In your example given, asthma is the body's immune reaction and not necessarily a function of the lungs so no, the person would still have asthma. -Correction in reply below Now, if someone had nerve damage in their hand (not resulting from a spinal issue) and successfully recieved a hand transplant, in theory thi...
why could the US and USSR produce more than 120,000 nuclear warheads and smaller nations struggle for years to make one?	[ "The main limiting factor for building nuclear weapons is enriching the uranium needed. The US and USSR, as superpowers, could enrich all the uranium they wanted. Other nations cannot because they don't have the facilities and when they try to build them the rest of the world steps in. Enriching uranium isn't neces...	[ "In the ancient near east/middle east in the Hebrew Bible era (say before 1000 BCE) deities were very regional and it was generally held that a certain god held dominion over a region and its people and a different god (or pantheon, like in Egypt) had dominion elsewhere. Common people generally held that a god wors...
Why does the deficiency of some vitamins like b12 can cause depression?	[ "B12 has an important role in maintaining nerve function, like assisting formation of the myelination around neurons that help them transmit information quickly. To relate it directly to depression, my best guess is that the decrease in neurological function is dampening the transmission and reception of serotonin ...	[ "Uranium is a [lithophile](_URL_0_) element, which means it tends to associate with the light elements that make up the crust. This is a result of the chemistry of uranium, and doesn't really have anything to do with its mass. Silver, cadmium, and mercury in contrast are chalcophile elements, meaning they tend to o...
Is there a certain AC frequency where transformers are most efficient?	[ "transformers are usually configured to be most efficient at the frequency for which they will be utilized. an example is the power tranformers on power poles in the US use 60hz and are optimized for that. how a transformer is built using the windings and cores determine it's optimum signal or power transfer freque...	[ "Many bridges have been ignored for decades, because shutting down major bridges = traffic nightmare for years and no mayor/governor wants to be the person that caused that. The electrical grid is absurdly inefficient. We could save a significant amount of energy consumption just by building a new tech electrical g...
What the heck is going on with Amy's Baking Company?	[ "Batshit-crazy woman and her husband spend millions opening a restaurant, the husband is a control-freak and the wife can't cook. Neither can manage a restaurant. When anyone points out anything they do wrong (online or in-person) they flip their shit, and abuse the person making the complaint. Said restaurant was ...	[ "_URL_0_ The short version is they were recorded during a sting operation in which police were informed of the show's activities. You have no expectation of privacy during the commission of a crime in most jurisdictions. Local law varies, though." ]
How does currency (e.g. Zimbabwe Money) inflate so rapidly?	[ "The money supply in a system should equal the value of all the goods and services that have been produced but not yet consumed. Adding money without adding value causes runaway inflation because you have more dollars competing for fewer goods. In a low productivity environment like Zimbabwe, you end up with a whee...	[ "You have a lemonade stand. You sell it for 50 cents a cup. One day you find out it's going to be very hot outside and people are going to want more lemonade. You figure you can get away with selling it for a little more since the demand is there. So you start charging 80 cents. You notice that the number of people...
Can I have some clarification over entanglement?	[ "> it mentioned that faster than light communication is possible Where? FTL communication is not possible with quantum entanglement." ]	[ "ALICE only detects high-energy particles (radiation)... so if someone were to emit those it could detect them. Edit: The above was a concession. When physicists speak of \"energy\" we refer to a very specific definition, which is not necessarily the same definition that others may use outside of physics. For examp...
How does money equal speech?	[ "You are reading it wrong. Money does not equal speech. Donating money is equal to speech. Its is assumed that you donating $100 to your preferred presidential candidate's campaign is the equivalent of your saying \"I support this person's policies\"." ]	[ "Penn & Teller: Bullshit! did a show on this, its very worth a watch, they break it down quite well and understandable. [Link to the full episode](_URL_0_) on youtube. Warning, NSFW language and boobies in like the first 2 seconds, because its Penn & Teller and thats what they do" ]
How do outrageous amounts of dust accumulate on computer components?	[ "Static electricity will bind a lot of particulate to the components in there. While air may be moving around, it's just distributing that stuff around really well." ]	[ "along with the other users comments, also keep in mind that the ps4 has more headroom. on a pc, the cpu has to manage the OS and lots of other things running while ALSO playing a game. on a console all it has to worry about is the game and the XMB." ]
At what frequency of light do we switch from using antennas (single piece of wire not in a circuit that exhibits resonance) to in-circuit things like lamp bulbs and why?	[ "We mainly use antennas to generate RF. We mainly use meterial physics (for example, thermal radiation from a filament or semiconductor recombination processes in an LED) to generate light. Even though \"RF\" and \"light\" are just two not-perfectly-defined regions of the electromagnetic spectrum. Antennas are limi...	[ "It's the difference between lots of people sitting in an auditorium listening to a speech and lots of people sitting around a table and trying to carry on a conversation with each of them simultaneously. With radios you have one \"speaker\" which is the radio transmitter, then you can have lots of \"listeners\" th...
Why do compressed zip/Rar of audio/video files are almost same size as uncompressed files ?	[ "Because most audio and video file formats are already compressed, they can't be compressed any (or very much) more." ]	[ "Computerphile explain it quite well - _URL_0_ Think of it like removing parts of a sentence but allowing it to still make sense. eg. 'The weather today will be sunny' compresses to 'weather today sunny' - it still somewhat makes sense, but there's less information. Hope this helps." ]
Can someone please explain deductive logic?	[ "In deductive logic, you use multiple usually general statements (premises) to generate a specific conclusion. & nbsp; 1) All animals are living things. 2) A cat is an animal. Therefore, a cat is a living thing. & nbsp; As opposed to inductive logic, you use multiple specific statements to try to figure out a...	[ "To a 5 year old? Only Carl Sagan can do that.... _URL_0_ _URL_1_" ]
Do we have memories from utero?	[ "People don't have memories before the ages of 2-4 years, what is called [infantile amnesia](_URL_1_). It's unlikely that these early [declarative memories](_URL_0_) were ever retained properly. Even beyond this amnesic period, memories from childhood are somewhat weak and tend to be forgotten. The idea that we hav...	[ "I think it is hardwired into us. [Tommy Edison](_URL_0_) explains it better." ]
Why does soda taste better cold, and coffee taste better hot?	[ "I can't speak to the soda part, but people drink almost as much iced coffee as they do hot coffee." ]	[ "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." ]
I am a Greek who's Settlement has come under Roman rule, how much has my life changed since the Romans took over?	[ "This doesn't exactly answer your question, but you should read [Celebreth's wonderful response](_URL_0_) to my somewhat similar question. In fact it won't answer your question at all, but it will help put you in the right framework to understand what's going on." ]	[ "How would we know what an \"average citizen\" thought? Every text we have is produced by the elite class. Whether people lost friends or family is impossible to know in the specifics. We do know that military disaster did not affect the political careers of the generals involved. Rosenstein in Imperatores Victi ...
Based on a post in TIL, how did captains of multiple fleets/vessels communicate with each other?	[ "Usually communication was through letters or representatives. A large component of ancient fleets were the so called Unrated vessels. Usually these were small fast ships used as couriers. They could find and deliver orders to distant stations or bring new commanders. In battle during the age of sail, ~ 1700-1850,...	[ "> Surely all the software still exists somewhere. It seems like it'd be a trivial task for someone with a decent budget to emulate it on a modern computer connected to a transmitter. A good rule of thumb: building an emulator is never a trivial task. And while the software exists \"somewhere\", it's not easy to ...
What did people call clockwise/counter-clockwise motions before clocks existed?	[ "Nøt sure how old it is but in my country, norway, we oftes say \"with/against the sun\". (With the sun being the same as with the clock). Quite independent of any mechanical apparatus." ]	[ "It depends on how much money they had. In a one way migration from town to town, If they were poor or even middle class they had it on them in a physical way, either in cash, coinage, or mostly they bought supplies with it (wagon, oxen, rifles, etc) before they left. Later migrations they might have a check or a b...
Why does the sun rise/set so quickly along the horizon but takes all day to cross the sky?	[ "The reason that the sun seems to set so fast and rise so fast at the horizon is simply because it is just about the only time you have a constant thing near the sun with which to compare its movement. When it is up in the sky there are no points of reference to compare its location from now and from 10 minutes ago...	[ "You're relaxed, your mind is in neutral. And you've been sitting there for perhaps half an hour or more. But to go to bed, you must get up, walk the dog, perform your ablutions, etc. By the time you climb into bed, you need some time to get relaxed and in neutral again." ]
How is it that sites such as StubHub are able to legally scalp tickets?	[ "You've always been able to sell tickets above face in classified ads. Scalping isn't illegal because it raises ticket prices, scalping is illegal because it's a nuisance Your ELI5 answer is that if you're not doing it near the event, ticket resale isn't \"scalping\" _URL_0_" ]	[ "There is an episode of This American Life that explains it really well: _URL_0_ They say that the real money is made of incentives from the manufacturer to sell the cars - they just need to move a set number of cars, it really doesn't matter how much they sell them for. And then they get big payouts from the manuf...
How can the lottery and things like Publisher's Clearing House afford to give away money so often, even at times when the economy is bad?	[ "[From the identical thread yesterday:](_URL_0_) It's actually $5,000 a week, not per year. That's $260,000/year. Most PCH customers are pretty old so they really don't pay out that much comparatively. Publishers Clearing House brings in $840.6 million in revenue per year as of 2013. $260k is chump change. They can...	[ "Travel, opening campaign offices in each state, television and radio ads, and paying everyone who works for the campaign, from those who research your opposition, to those who manage your website -- it's a year+ long process with a lot more than a few speeches and shaken babies." ]
Another black hole question from me, why is it that the Radius of a black hole is less then then the Schwartzschild radiation?	[ "The radius of a stationary black hole is precisely the Schwarzschild radius. Also, a black hole is not \"something where the escape velocity is greater than the speed of light\". The event horizon happens to coincide with the spatial coördinates at which a distant observer would expect the Newtonian escape veloc...	[ "One of the big determiners is the Roche limit. The closer you are orbiting to a body, the faster you must orbit. As a result, there is a tension on large satellites, where the part closer to the parent body wants to move faster than the far side. This stress increases the closer the satellite orbits. For a large o...
how the little tab on the rearview mirror works to dim the view of headlights.	[ "I believe there are actually two layers of glass in the rearview. The tab changes the angle of the glass at the back to reflect light downwards (or upwards), while the front glass continues to allow you to see without the full light being reflect directly." ]	[ "It's a lot easier to grasp when you think about the Sun's location relative to the moon when you're looking at it. The bright part of the moon is always facing the sun." ]
Why is college so time-rigorous that students have to choose between sleep and grades. What's the rush?	[ "It's not so much because university work is particularly rigorous, and more because young adults lacking adequate parental supervision are very good at procrastinating." ]	[ "I'm not 100% sure, but I feel like it's because the person who sang it perfectly is really only interested in getting all the notes and stuff correct. Whereas the other, just wants to sing it whether it's perfect or not. It's sort of the same with jazz music. There's white jazz, and there's black jazz... White jaz...
Hi AskScience, My grandfather held a patent regarding nuclear fission, he has Dementia now and I would like to be able to talk with him about it. Can you help me understand it?	[ "This patent is too old for me to be able to do it electronically, but you can call the patent office and request a copy of the file history - which is the back and forth between the Patent Examiner and the applicant's patent attorney during prosecution of the underlying application. It may have some interesting nu...	[ "Your cell's DNA is like a paper manual for what it needs to do. Every time that cell divides, it photocopies the manual and gives a copy to the new cell. However, every photocopy can only be as good as the original copy and may also result in a lower quality. The original copy may also get some wear as you flip th...
Why is holding in a sneeze supposed to be bad for you?	[ "From: _URL_0_ > \"The injuries that might occur are flukes or are related to some underlying anatomical oddity.\" > But if you happen to be one of these unlucky cases, Wild said a holding in a sneeze may lead to several unhealthy situations. A blocked sneeze could: * cause injury to the diaphragm * break a bloo...	[ "There's a tube in the back of our throats that connects to the middle of the ear, called the Eustachian tube. When you yawn, air pressure travels through the tube and bends the ear drum." ]
Why does the medication I paid $10 for in South Africa cost $110 in America	[ "I had it explained to me like this one day, so correct me if i'm wrong: Healthcare costs, in general, but especially in the US are greatly inflated. The insurance companies refuse x number of claims, which then go unpaid in one way or another; either the company doesn't pay, or the patient can not afford it after ...	[ "While simple supply and demand is a factor, in the case of Norway its more to do with high taxes. Sales tax in Norway is 25 percent, so while you can buy less with it in Norway itself the currency is worth more than it seems." ]
How vinyl record players can play not only the pitch but also other details of some sound	[ "Different instruments produce different shapes of sound wave. [Here](_URL_0_) are a few examples. These are stored on vinyl by physically making the edge of the groove into the shape of the sound wave that the instrument makes." ]	[ "Reading cds is done by reflecting light off each bit. I guess it's comparable to reading Braille where you feel for bumps. If you scratch the cd you no longer get an accurate reflection so you don't know what it's supposed to be. Same way if you damage a Braille book you can't read it anymore." ]
Why do plants turn yellow when they are dehydrated?	[ "Yes, the chlorophyll breaks down over the course of a day or two, causing it to lose its pigment. The grass will not spend energy making new chlorophyll until it has a means of transportating it and other nutrients to throughout the leaves, which requires a certain amount of water." ]	[ "Think of it like a hose... and a room made of sponge. The light bulb is a hose, spraying water (light) everywhere. The room is a sponge, absorbing the water (light) all the time. The moment you turn the light off, it's like closing the faucet to which the hose is attached. It stops spraying water (light) everywhe...
What's the main diffrence between Catholics, Orthodox and Protestants christians?	[ "Catholics say hello when they see each other at the liquor store." ]	[ "Why are noses different in size, why are people different heights, why do we have different hair colors?" ]
How accurate and reliable is the book "Kruschev Lied"?	[ "How reliable is Grover Furr? The short answer is not at all. Furr is a rank Stalinist apologist and not a professional historian. While the latter is not an automatic disqualification, his books and articles twists evidence and interpretations to suit an agenda of rehabilitating Stalin, much as David Irving select...	[ "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_...
Why do fireflies glow?	[ "First paragraph in the Wikipedia entry on Fireflies: \"The Lampyridae are a family of insects in the beetle order Coleoptera. They are winged beetles, and commonly called fireflies or lightning bugs for their conspicuous use of bioluminescence during twilight to attract mates or prey\"" ]	[ "They use extremely fast camera shutters to capture a very short moment so you can see the light beam. However they can not reset the camera in time for the next frame so they cheat a bit by sending a new beam of light for the next frame. They make sure to synchronize the short beams of light with the camera shutte...
Why we use lead to encase radiated objects	[ "Lead is very dense. So there's just more stuff in there, electrons and atoms that can get in the way of radiation. The radiation basically just keeps going until it hits something. Some forms of radiation like alpha particles, are big and heavy and they can be stopped by a sheet of paper, can't even penetrate ski...	[ "If your referring to paint, this should answer your question: _URL_0_ But basically, UV radiation degrades paint over time." ]
Clothespins on tip of explosive ordnance?	[ "I suspect the thing you're taking to be a clothespin is actually a small propeller. This propeller is spun by the air passing over the bomb as it falls. This turns a screw inside the bomb and moves the detonator into place. This arms the bomb and allows it to detonate on impact. This mechanism keeps the bomb *rela...	[ "think of it like a high pressure balloon full of really fine glitter. now pop it in the wind!!!" ]
Were mercenaries used in WWI or WWII?	[ "They were not mercenaries per se, but volunteers serving in another country were common. One odd example is Indians in the Wehrmacht. _URL_0_" ]	[ "That style was actually called the \"toothbrush moustache\" and it actually originated in America during the late 19th or early 20th century, I think. It was sported mostly by the working-class, as it didn't require a lot of maintenance unlike the flamboyant moustaches and beards worn by the wealthy. Chaplin used ...
What exactly is net nutrality and why should i care?	[ "Net Neutrality is the idea that all of the internet should be considered neutral to service providers, meaning one website can't be taken priority over another and one user can't take priority over another. Similar to how the water district doesn't give you bad water and someone else good water (sorry flint this a...	[ "It will not effect the internet, it may effect certain services like facebook or google which gather and export user data to countries outside the EU. So companies will at least have to ask before they send EU citizen data abroad. That's the general gist of ir anyway." ]
What is a net worth?	[ "If Bill: 1. sold everything he owned (house, car, stock), 2. paid all his debts (credit card bills, mortgage, car payments, loans) 3. Collected anything he was owed (loans he'd made, etc) Then it would be how much he had to spend." ]	[ "Previous reply was pretty close. \"W\" is often referred to as winter or more specifically cold, this is the viscosity of the oil when it is cold. The 2nd number is the operational viscosity, or how well it flows once heated. It's is best to put the recommended oil weight in a car. Truth be told there is a complex...
Hi. What is this mean? Found in oxford bar. I don't have a clue cause Im dumb... but curious😁	[ "It is a quantum mechanics calculation in [Dirac notation](_URL_0_), where i and f probably stand for initial and final, and the first line k is the probability of the operation U turning the initial state into the final state. The rest looks like a more involved calculation of the same." ]	[ "You know how authors write long stories using letters and words and the rules of grammar and writing? Its just like that. With enough knowledge of how to read (math), these kinds of explanations make sense. Dont feel bad that you cant read it. Its just like if you tried to read a story in a language you dont know....
Why are Autistic Spectrum Disorders far more prevalent in males than in females?	[ "There have been studies done recently that look into the possibility that girls with autism display the symptoms differently and have differences in brain structure leading to under diagnosis and mistreatment. [Here is one write up] (_URL_0_)" ]	[ "1) The Law of Segregation states what you already seem to know: you get one allele per trait from each parent (the \"segregation\" bit comes from the fact that your parents' chromosomes physically separate from one another when gametes are formed), and you may inherit these in any combination of dominant/recessive...
How come dinosaurs lived over ten times longer than us AND our ancestors but they never got smart?	[ "Because intelligence isn't the goal of evolution. In fact there isn't really a goal at all, but survival and reproduction naturally get rewarded. In both those categories dinosaurs managed to do just fine until a rock destroyed them from space. That's one of the biggest misconceptions of evolution, that it's a pro...	[ "Couple reasons. 1. Their exoskeleton prevents a lot of damage--you can flick an ant and have it fly 100x its own body length in distance, land, and keep moving. Imagine your skin being as strong as your bones. 2. Aerodynamics--dropping a piece of paper and a rock will fall to the ground much differently. Same goes...
Why do large banks/stores/restaurants leave all their internal lighting on while closed and empty?	[ "It makes it harder to rob the place if people can see you." ]	[ "Basically, the federal government spends the money congress says it should spend; we have a lot of that money in yearly budgets (congress passes appropriations bills, that basically say spend $x for y,z... between Oct/1 and Sept 30); all those appropriations bills expire on Oct 1, so after that, the federal govern...
Why is there a far bigger variety of dogs than cats if they've been domesticated for about the same time historically?	[ "Dogs were domesticated for a lot of specific purposes...guarding, herding, tracking, various forms of hunting. Cats catch vermin. They were already as good as they were going to get before they were domesticated, so there was little reason to breed them for new characteristics." ]	[ "Christianity really began to diversify after the Reformation though other forms of Christianity other than Catholicism existed already; East Catholics, Eastern Orthodox, etc. After that, Christianity becomes more open to interpretation and ways of worship. No Catholic authorities were around to stop traveling prea...
Are you able to see the colors that have a wavelength that fits in a certain atom?	[ "Yes. The two electron states are separated by a fixed energy, which corresponds to a specific wavelength. The transition will either absorb or emit that specific energy via a photon of that wavelength. So if the transition absorbs a 500nm photon, the excited electron will emit a 500nm photon when it falls back to ...	[ "How can salt be safe to consume when it's made from sodium and chloride? Go look up someone dropping sodium in water on youtube, surely THAT can't be safe to put inside your body, right? See, thing is, chemical compounds are different from simple mixtures or ingredients. So when you say \"x is made from y\" do...
Why do we not feel our eyeballs rubbing against our eyelids?	[ "Your eyeballs are thoroughly lubed up, that's why. Ever had dry eyes? You feel your eyelids then." ]	[ "Sleep is actually quite a complicated process. There are several brain functions that need to shut down: balance, muscle tone, sensory responsiveness, and conscious awareness. The brain tries to synchronize those when you sleep. Sometimes that synchronization gets sloppy. For example, if muscle tone gets shut off ...
How much lower were sea levels during the ice-age?	[ "During the last glacial maximum ~19,000-23,000 years ago the ocean was between 120 and 140 meters (390-460 feet) below its current level. _URL_0_ _URL_1_" ]	[ "Native Icelander here. When Iceland was settled it was full of trees which the Norwegians cut down to build houses and create grazing fields for general farming and for their cattle. What they did not realize was that the soil in Iceland is very weak and takes quite some time to recover, time which it didn't recei...
Why do I want to squeeze my cat to death?	[ "This is called cute aggression. I'll be back in a moment with a link! Edit: Here's a [Scientific American article on the topic](_URL_0_). Enjoy!" ]	[ "During moments of euphoria our body language elevates. When our favourite team scores or we see our bands come out on stage we jump, our hands go in the air and some instances we hold our heads or face. This can be a form of pacifying. We pacify when we get rushes of adrenaline in order to calm ourselves down." ]
Why do computers need screen savers but not TVs?	[ "Slightly unrelated, but my Grandmother watched QVC so much in the late 1990s/early 2000s that the phone number was permanently burned into her CRT tv screen." ]	[ "They use a wavelength of light that is cancer causing. Do you want to sit under a cancer causing light? Plus, they aren't all that effective to stop, say a sneeze from transmitting to another person. It takes some time to kill the germs." ]
why would intelligence agencies be interested in putting common people like me under mass purveyance?	[ "Because to them you're a potential future terrorist. Not joking. You are future guilty and they're just waiting for you to fuck up. That's literally it." ]	[ "Data. Pure, gooey, delicious data. Seriously though - the Airlines are collecting data on a massive scale. If they notice an uptick in travel to/from one city they will use that information to update how their resources are distributed." ]
If slaves in America were so expensive, why were they beaten and killed?	[ "The level of constant abuse is vastly overdone in Hollywood movies. They want to express how terrible slavery was but don't have enough time to put it into perspective. So they show it all at once when it isn't exactly realistic; such things did happen, but not likely to be as often or all at once." ]	[ "> if you got a job lol > at minimum pay you should be able to get a home and basic needs super lol Seriously, you sound like someone who has never had to pay a bill. You can't live on most places in the US on minimum wage. If you lose your job and dont have a family who can support you then you're homeless. Simp...
Is there a function f(x) where x is a real variable such that f'(x) = f^-1(x)?	[ "f(x)=x^(φ) φ^(1-φ) is a solution for the positive reals and zero, where φ is the golden ratio. Its derivative is f'(x) = x^(φ-1) φ^(2-φ) and its inverse is f^(-1)(x) = x^(1/φ) φ^(1 - 1/φ). Since the golden ratio satisfies the property 1/φ = φ-1, we have that f'(x) = f^(-1)(x), as required." ]	[ "With ordinary investment, you actually own something, gold, part of a company, soybeans, etc. With derivatives, you are buying or selling the right to own something. For example, at harvest, I might buy 100 bushels of soybeans for $1000, hoping I could sell it later for $1200. Alternately, before harvest, I coul...
How do astronomer's "know" the properties of distant bodies?	[ "Science isn't concerned with \"knowing\" anything. Science is about finding explanations for observations, and through experimentation either confirm or deny those explanations. They say \"we know\" instead of \"we think\" because there is a large body of evidence for that explanation, and many other explanations...	[ "We use spectography. Each element absorbs particular colors, so when we see those colors deleted from an otherwise smooth spectrum, we can figure out what they're made of. In the case of." ]
During the American Revolution, were the Thirteen Colonies self-sufficient in their gunpowder production, or did it need to be imported?	[ "In December 1775, there was a major shortage of gunpowder in the continental army. To combat this, the continental army freely spread the \"recipe\" to create gunpowder among their supporters and began to encourage domestic manufacture, which largely didn't exist before the war. Between 1775 and 1777, they were ab...	[ "Hello prospective respondents. Everyone loves to talk about food (and drinks!), so just a reminder of which sub we're in: it's /r/AskHistorians so no personal anecdotes, urban myths or conjecture. Respondents here are expected to have expertise in the subject, offer in-depth information and cite *reputable s...
Why are human babies so incapable and defenseless?	[ "The birth canal can really only be so wide (jokes notwithstanding). The baby is born while the head can still pass through the birth canal. This leaves us birthing at a less developed stage than most mammals, which means our babies are more helpless. I'd a trade of that allows for a big head relative to the rest o...	[ "Becaus for most if them their frontal lobes aren’t developed yet and are very easily molded by repetition and hype. Adults have the ability and experience to see the BS in ads." ]
Why does the Sun increase in luminosity during its main sequence lifetime?	[ "As a main sequence star, the Sun fuses hydrogen into helium in its core. This produces electromagnetic energy that radiates outward through the star. This creates an outward pressure that counteracts gravity, thus keeping the star somewhat stable. As it burns through the hydrogen in its' core and there is less to ...	[ "This is to do with the type of camera/film used and as the decades move on you see an improvement in camera technology - I wish there was more to it that that but that's about it I think." ]
Is Diatomaceous Earth safe for comsumption and are there any studies that show if it has actual health benefits?	[ "The answer is actually both yes and no. If you are going to consume Diatomaceous earth it must be of a food grade quality or it's not recommended from consumption. Finding sources that are credible will likely be a bit challenging as natural products pretty much get exempt status from the FDA when sold as a health...	[ "> Medical doctor Donald Unger crackedthe knuckles of his left hand every day for more than sixty years, but did notcrack the knuckles of his right hand. No arthritis or other ailments formed in either hand, earning him the 2009 Ig Nobel Prize in Medicine, a parody of the Nobel Prize. Source:_URL_0_" ]
Why would someone post a video on YouTube, and NOT make it available on mobile?	[ "It is an outdated setting based on the fact that in the past, mobile devices couldn't display the ads with YouTube videos. Since the uploaders/content creators are using these ads to get paid, watching on mobile is basically \"free\" streaming from their perspective. So uploaders and copyright holders are able to ...	[ "Costs money to build and maintain the facilities, some countries don't feel like taking on the burden of that cost." ]
When actors smoke in films, do they actually smoke?	[ "Herbal cigarettes are an option. [At the Mad Men Q & A at the Paley Center earlier this week, the cast discussed smoking on the show, noting they smoke herbal cigarettes made of \"rose petals, marshmallow... no nicotine or tar.\"](_URL_0_)" ]	[ "Usually, it's just angle trickery, the mirror is angled to not have the camera in it. Other times, it's removed via CGI. Other times it's very complex with multiple mirrors and identical sets through windows giving the illusion of a reflection." ]
How different or similar, genetically speaking, would a cancer cell be from the rest of my body?	[ "While this will vary wildly between different types of cancers, the general phenomenon is that a cancer cell will have a ton of modifications. But it's not so many mutations that the DNA is not even yours anymore. In almost all cases the DNA in your cancer will still be more related to you than any other individ...	[ "Normally linking to a comic would be a bad thing in ask science, but I think they really hit the nail on the head scientifically: [Ph.D. Comic on cancer](_URL_0_)" ]
How come I understand stuff better after not doing it for a while	[ "Not a neurologist here, but I had read certain articles way back that explain our learning process. It was sort of like: we learn a certain thing while we are conscious, but this certain thing we learned is only stored as short term memory while we are conscious. The brain processes this information during sleep t...	[ "Context. The thought was formed in one environment and an association created. When you pass through a doorway you're passing into a new context and the association is lost." ]
How does your phone know how much charge us left?	[ "If the battery is 9.4 volts, and the phone can operate as low as 7.2 volts, then it just measures the voltage and calculates percent. At 7.3 volts, it says it's done and shuts down." ]	[ "When it gets low, it turns off some things. I suspect it started doing GPS checks a lot less often, dimmed the screen, and slowed down the CPU." ]
How does reverse thrust on a jet engine work?	[ "Most jet aircraft have \"buckets\". When stowed, these don't interfere with the engines at all. But when deployed, they form a barrier behind the rear of the engine, which directs the jet exhaust forwards, creating reverse thrust. There's a very good picture of the buckets in their deployed position [here](_URL_0_...	[ "_URL_0_ The wikipedia article is excellent and better than any of the answers in here so far. If you have specific parts you don't understand, ask away and I can help explain them to you." ]
What would the 50 Mt Tsar Bomba blast look like if seen from ISS or the moon?	[ "As [This picture here](_URL_0_) shows pretty well, details even 5 miles in diameter would be nearly impossible to see from the moon (at least with the naked eye). I can't say for sure whether or not the flash itself would be visible, but it certainly doesn't seem impossible, if the bomb detonated facing the Moon, ...	[ "Partially right. It's mainly erosion, and many smaller things are lost due to disintegration in the atmosphere. Water, wind, ice, etc- they all work to reform the landscape, erasing evidence of impacts. But we still see plenty of craters in dry places or places with less erosional activity. Meteor crater in Arizo...
The differences between the two major political parties and a brief explanation of how their views differ.	[ "Republican: Economic freedom, social control Democrat: Economic control, Social freedom Facism: Economic control, social control Libertarian: Economic freedom, social freedom" ]	[ "I have a question for you. Do you want the version that is super, super long and includes a write-up on what actually went down at Munich, and the subsequent responses back and forth? Or do you want the shorter version that only talks about media coverage of the incident and how it changed things?" ]
Not sure if this is the correct place, but I have a mythology related question.	[ "If you have no luck here, you might also try /r/tipofmytongue ." ]	[ "> Medical advice is always off-topic and inappropriate. Please consult with a doctor regarding issues of health. Please do not ask for, listen to, or offer diagnoses, treatment advice, or personal medical" ]

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