q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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values | url stringlengths 4 132 | answers dict | title_urls list | selftext_urls list | answers_urls list |
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d8ug3e | why are leds diodes? | Can you make a similar electric component that does not act like a diode? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d8ug3e/eli5_why_are_leds_diodes/ | {
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"LED stands for Light Emitting Diode.\n\nThey are diodes because they are diodes. You want something similar to a Diode that isn't a Diode? Is that right?",
"The light an LED ge... | [] | [] | [
[],
[],
[],
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] | |
85ixgi | why doesnt our blood clot inside our body. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/85ixgi/eli5_why_doesnt_our_blood_clot_inside_our_body/ | {
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"It does clot inside your body, hence deep vein thrombosis, stroke, atherosclerosis etc. injury or blood stagnation inside the arteries or veins results in ... | [] | [] | [
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Virchow%27s_triad"
],
[]
] | ||
2r4ppt | How did we work out our Peculiar Velocity? | I was watching a Sci-show video and they said in the 1970s we worked out our Peculiar Velocity by tracking the sun's position in the milky way using the universe's general background radiation as a reference does anyone know some specifics on what they did to work this out, I'd love to know the calculations. Thanks in ... | askscience | http://www.reddit.com/r/askscience/comments/2r4ppt/how_did_we_work_out_our_peculiar_velocity/ | {
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"text": [
"Hi /u/TheRockingChar,\n\n > I was watching a Sci-show video and they said in the 1970s we worked out our Peculiar Velocity by tracking the sun's position in the milky way using the universe's general background radiation as a reference\n\nIt turn... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Friedmann%E2%80%93Lema%C3%AEtre%E2%80%93Robertson%E2%80%93Walker_metric",
"http://en.wikipedia.org/wiki/Cosmic_Background_Explorer",
"http://en.wikipedia.org/wiki/Doppler_effect",
"http://en.wikipedia.org/wiki/Isotropy",
"http://arxiv.org/pdf/astro-ph/9312056v1.pd... | |
1xzcsk | Why do spiders have eight legs? | Insects have six legs so that they form a tripod when they take a step - they are too small to have a falling part of their gait as tetrapods do.
But why do spiders, fairly closely related to insects and often facing similar locomotory challenges, have eight legs? Is this to do with max speed or efficiency when walki... | askscience | http://www.reddit.com/r/askscience/comments/1xzcsk/why_do_spiders_have_eight_legs/ | {
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"cffzxak",
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"score": [
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"text": [
"Fundamentally, the scientific consensus around evolution says that this is random and happened to work.\n\nWhen you start asking \"why\" a biological entity is \"designed\" a certain way, you start r... | [] | [] | [
[],
[
"http://evolution.berkeley.edu/evolibrary/article/arthropods_05",
"http://en.wikipedia.org/wiki/Polydactyly_in_early_tetrapods",
"http://timetree.org/index.php?found_taxon_a=6918%7Cspider&found_taxon_b=13618%7Cant&action=",
"timetree.org",
"http://salinella.bio.uottawa.ca/Digital... | |
2hfau1 | why is the uk lagging behind on the legalisation of marijuana? | With so many other countries bringing up the issue, and a few way ahead of the curve, why isn't there even an active discussion about it here in the UK?
I'm aware there were a couple small discussions regarding the health issue that occurred earlier on in the year but nothing major came of them as far as I can tell. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2hfau1/eli5_why_is_the_uk_lagging_behind_on_the/ | {
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"text": [
"Whether cannabis is discussed or not, is very much down to politicians. There is little point in having a debate if no one is listening. They make this decision as to how many vote... | [] | [] | [
[],
[],
[],
[]
] | |
fxwyv | Is the Journal of Cosmology a legitimate scientific source? | Can someone within the field explain to me whether the [Journal of Cosmology](_URL_2_) is actually a legitimate peer reviewed source taken seriously?
On one hand, it seems to be edited by top scientists and taken seriously as a publishing medium by other scientists and the mainstream media.
On the other hand, its we... | askscience | http://www.reddit.com/r/askscience/comments/fxwyv/is_the_journal_of_cosmology_a_legitimate/ | {
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"score": [
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"text": [
"I found this account of someone invited to do a peer review for the journal and was, to p... | [] | [
"http://journalofcosmology.com/Life100.html",
"http://www.timecube.com/",
"http://journalofcosmology.com/"
] | [
[
"http://www.sentientdevelopments.com/2009/09/explanation-for-lifes-origins-that.html"
],
[
"http://iopscience.iop.org/1475-7516"
],
[
"http://thomsonreuters.com/products_services/science/science_products/a-z/journal_citation_reports/"
],
[],
[],
[
"http://www.sciencedirect.com/scie... | |
49nzte | how come when someone holds a door open for someone or multiple people they still feel inclined to touch / push on the door even though they aren't doing anything to it and it's already pushed open? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/49nzte/eli5_how_come_when_someone_holds_a_door_open_for/ | {
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"text": [
"It's a polite gesture to indicate that, should the person holding the door wish to pass on the responsibility, the person who's touched the open door will st... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
2siaie | is it legal to create copies of consoles such as the nes nowadays? (without the use of software emulation). why is nintendo not suing them? | I've seen lot's of those lately. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2siaie/eli5is_it_legal_to_create_copies_of_consoles_such/ | {
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"On what basis could it sue? NES used practically off-the-shelf components. I doubt there was any system ROM (whole program was contained in cartridge), so no copyright infringement. I guess system as a ... | [] | [] | [
[],
[],
[]
] | |
81twam | why can loud white noise, such as the sound of a roaring waterfall, be so comforting and calming? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/81twam/eli5_why_can_loud_white_noise_such_as_the_sound/ | {
"a_id": [
"dv5g9th"
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"text": [
"I think there are two viable explanations here. Both deal with the mechanics of sound, while one focuses on the psychology of “how” you hear, more precisely than merely “what” you hear. \n\n1.) Constant noise that has a relatively small amount of... | [] | [] | [
[]
] | ||
ce4yg6 | why do you never hear the people above you in a hotel room, but in an apartment it sounds like elephants stampeding overhead when neighbors make noise? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ce4yg6/eli5_why_do_you_never_hear_the_people_above_you/ | {
"a_id": [
"etyp7ps",
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"text": [
"The hotel probably used concrete between the floors, not wood.",
"Hotels would like to attract business back. They don't lock you into a year of tenancy, and so if you have a bad experience with noise you're less likely ... | [] | [] | [
[],
[]
] | ||
8in59o | I recall reading once that in Early Modern Europe, alcohol, particularly ale/beer, was so widely consumed because the brewing process made it more sanitary than unclean water. How did groups with a social or religious prohibition of alcohol get around the same problem? | There is of course a very decent chance that this premise is flawed, and alcohol was never a substitute for water in the first place... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8in59o/i_recall_reading_once_that_in_early_modern_europe/ | {
"a_id": [
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"text": [
"There's always room for discussion but perhaps the section [Hygiene And Healthy Lifestyles](_URL_0_) from our FAQ will answer your inquiry."
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/wiki/science#wiki_hygiene_and_healthy_lifestyles"
]
] | |
3wfp40 | why strong, muscular animals such as gorillas don't need to lift weights to build a ton of muscle mass but humans do? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3wfp40/eli5_why_strong_muscular_animals_such_as_gorillas/ | {
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"There are plenty of humans that are born with a lot of muscle mass. I remember middle sch... | [] | [] | [
[],
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32803m | Why is centripetal force an inward force? | I understand that centrifugal force isnt real and is just an objects inertia trying to send it forward. What Im having trouble with is understanding centripetal force. Im imagining a ball on a string, as I whirl the ball around me where is the centripetal force? Is the ball coming in but the inertial force just to stro... | askscience | http://www.reddit.com/r/askscience/comments/32803m/why_is_centripetal_force_an_inward_force/ | {
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"text": [
"I don't like the description of centrifugal force as \"not real\", because it seems to just muddy the waters. You can measure it, it does something, so that's real enough for me.\n... | [] | [] | [
[],
[],
[],
[]
] | |
b7me7b | What sort of games or sporting activities would the Ancient Roman elites engage in? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/b7me7b/what_sort_of_games_or_sporting_activities_would/ | {
"a_id": [
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"text": [
"There are, of course, quite a few options out there that we can look at, but I'm going to discuss my particular favorite example, although I hope you'll excuse me for going beyond just Ancient Rome, as much of what makes it so fascinating is th... | [] | [] | [
[]
] | ||
7gdc10 | why dont any highways/private tolls have speed limits above 85mph? why has no road in america ever attempted no-speed limit zones? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7gdc10/eli5_why_dont_any_highwaysprivate_tolls_have/ | {
"a_id": [
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"text": [
"The interstates in Montana used to have daytime speed limits of \"reasonable and prudent\". It was eventually changed because the courts decided that was too ambiguous, it did not define what was legal and what was not.",
... | [] | [] | [
[],
[]
] | ||
361qlj | how does the iss avoid damage from solar wind's if it is always in constant orbit? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/361qlj/eli5_how_does_the_iss_avoid_damage_from_solar/ | {
"a_id": [
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"text": [
"The ISS orbits beneath the protective shield created by the earth's magnetism. The bulk of the solar wind is deflected away from earth by the earth's magnetic field.",
"Because the ISS isn't that far out at all, at a mea... | [] | [] | [
[],
[]
] | ||
ln542 | Would it be possible to print a circuit on your body as a tattoo? | If it's possible, what would be the limitations? | askscience | http://www.reddit.com/r/askscience/comments/ln542/would_it_be_possible_to_print_a_circuit_on_your/ | {
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"text": [
"You'd be severely limited by the fact that skin is conductive. ",
"[Yes](_URL_2_) and [yes](_URL_1_) and [another similar article](_URL_0_)",
"You'd be severely limited by... | [] | [] | [
[],
[
"http://arstechnica.com/science/news/2011/08/temporary-tattoo-electronics-flexible-ultrathin-measurement-devices.ars",
"http://blog.makezine.com/archive/2011/08/circuits-that-stick-to-the-skin-like-temporary-tattoos.html",
"http://blogs.discovermagazine.com/80beats/2011/08/11/thin-flexible-circu... | |
44nn87 | what would happen to health insurance companies in the united states if we had a single payer system | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/44nn87/eli5_what_would_happen_to_health_insurance/ | {
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"text": [
"They would have to shrink quite a bit, but health insurance still can exist in single payer systems. Medicare is single payer for the elderly, but supplemental insurance exists to cover gaps and areas ... | [] | [] | [
[],
[],
[]
] | ||
2dcq8t | What are some definitive works on the Weimar Republic/Weimar Assembly? | I am currently at the preliminary stages of some Weimar research and was hoping if some fellow historians could help me avoid the "feeling around in the dark" phase of the literature hunt. Thus far I have found that quitea lot of the literature seems interested in finding a path to the 3rd Reich rather than a in-depth ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2dcq8t/what_are_some_definitive_works_on_the_weimar/ | {
"a_id": [
"cjoc82i"
],
"score": [
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"text": [
"there unfortunately is a tendency in Weimar historiography to emphasize \"all roads lead to Hitler\" and it is present even in texts that try to break away from this paradigm. But here's some suggestions:\n\n* Detlev Peukert's *The Weimar Republi... | [] | [] | [
[]
] | |
713aai | blood antigen and antibody | I understand that due to the interaction of different antigens and antibodies found of different blood type causes blood clotting. But imagine this. When Blood O is poured into a cup that is filled with Blood A, there should not be any clotting. However, when Blood A is poured into a cup filled with Blood O, you get cl... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/713aai/eli5_blood_antigen_and_antibody/ | {
"a_id": [
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"text": [
"So, here's where you're getting a little mixed up.\n\nFor one, the risk in blood transfusion isn't clotting, but rather a hemolytic reaction where the recipient's immune system attacks and destroys the foreign red blood cells.\n\nIf you were to p... | [] | [] | [
[]
] | |
1vrpic | How have renovations in the White House been handled and are there any restrictions? | I am curious to know how former presidents made structural or cosmetics changes to the White House. Did modern presidents take into account the historic nature of the building or are they allowed to make significant changes? Would something like changing the Red Room into an arcade (not that they would) be alright? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1vrpic/how_have_renovations_in_the_white_house_been/ | {
"a_id": [
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"text": [
"The [White House, the Capitol, and the US Supreme Court Building](_URL_1_.) are exempted from listing in the National Register of Historic Places, and [Section 106 of the National Historic Preservation Act of 1966, as amended](_URL_0_), is not ap... | [] | [] | [
[
"http://www.achp.gov/106summary.html",
"http://en.wikipedia.org/wiki/National_Register_of_Historic_Places_listings_in_Washington,_D.C"
]
] | |
1ryee0 | WWII: Why weren't US-China relations stronger coming out of WWII? They both had a common enemy in Japan. | From my understanding, and correct me if I'm wrong, the Japanese occupation of parts of China was at times brutal (starvation, labor camps, etc). I would have thought that the U.S. defeating Japan would have brought a lot of favor to China's worldview of the U.S., but instead they emerged as adversaries? What am I mi... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ryee0/wwii_why_werent_uschina_relations_stronger_coming/ | {
"a_id": [
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"text": [
"Oh man I don't have my books on me as I'm at work on my lunchbreak, I'll attempt to fill in the sources when I get back home, but there's a few things here:\n\nChina had a very favourable view of the US by the end of WW2, bu... | [] | [] | [
[],
[
"http://www.csmonitor.com/2004/0106/p18s02-bogn.html"
]
] | |
5ue86r | what do game developers have to do in order to fix their online servers? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ue86r/eli5_what_do_game_developers_have_to_do_in_order/ | {
"a_id": [
"ddtd23b"
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"text": [
"That's a fairly broad question but i'll try to outline the process in a few steps:\n\n1) Identify that there is a problem. \n\n2) Investigate and find the root cause of the issue. \n\n3) Create code that fixes the problem. \n\n4) Test the code on... | [] | [] | [
[]
] | ||
3fcz7w | windows 10 data collection. why should i care. | For the most part, due to lack of time these days, all I use my computer for is video games and a slight bit of Web surfing. Should I be concerned about this? Is it in anyway helping Microsoft advance technology? I guess i don't really understand why it's such a big deal. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3fcz7w/eli5_windows_10_data_collection_why_should_i_care/ | {
"a_id": [
"ctnhnwb",
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"score": [
5,
5
],
"text": [
"Imagine you're going to the bathroom. You're doing nothing wrong, but you don't want anyone else to see you because that's private.\n\nNow imagine that someone wants to film you going to the bathroom and keep that video for... | [] | [] | [
[],
[]
] | |
2dwx9y | The Jomsvikings, how much is truth and how much is legend? | I've recently been reading about these guys and one thing I can't seem to get my head around is separating truth from fiction, I guess my question can be broken down into 2 parts really:
Jomsborg- was this a real place, or was it the town 'Wollin'?
Some of the leaders or chieftans, for example Palnatoke or Thorkell t... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2dwx9y/the_jomsvikings_how_much_is_truth_and_how_much_is/ | {
"a_id": [
"cju5gn0"
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"score": [
4
],
"text": [
"No one can seperate myth from reality when it comes to the Jomesvikings.\n\nI guess that the reason you find that some of it seems very real and some of it seems very legendary is because the material on the Jomsvikings comes from a number of dif... | [] | [] | [
[]
] | |
3ufyjm | why do many "muscle breed dogs" have stump tails? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3ufyjm/eli5_why_do_many_muscle_breed_dogs_have_stump/ | {
"a_id": [
"cxejoi6",
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"score": [
2,
2
],
"text": [
"[These previous posts might help.](_URL_0_)",
"It isnt a natural trait of the dogs. People have the tails cut. For various reasons. \n\nSometimes its because they're dog fight dogs and the owners don't want other dogs to... | [] | [] | [
[
"https://www.reddit.com/r/explainlikeimfive/search?q=dog+cut+tail&restrict_sr=on&sort=relevance&t=all"
],
[]
] | ||
47chp0 | If the ocean levels do rise in the future, what will happen to Jerusalem and other lands in the Middle east? | I know ocean levels are rising faster now, and all I hear is about how America might look. What I'm curious about is how places like Damascus, Beirut and particularly Jerusalem might look. I am not exactly asking this for religious reasons but I am genuinely curious. | askscience | https://www.reddit.com/r/askscience/comments/47chp0/if_the_ocean_levels_do_rise_in_the_future_what/ | {
"a_id": [
"d0c1k86"
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"score": [
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"text": [
"Global maps of potential areas inundated by various amounts of sea level rise based on different projected amounts of global warming are a google search away, here is a [good site](_URL_2_) to start. [Most of the places you mentioned](_URL_1_) ar... | [] | [] | [
[
"http://choices.climatecentral.org/#11/33.8681/35.5960?compare=temperatures&carbon-end-yr=2100&scenario-a=warming-4&scenario-b=warming-2",
"http://choices.climatecentral.org/#7/33.092/35.140?compare=temperatures&carbon-end-yr=2100&scenario-a=warming-4&scenario-b=warming-2",
"ht... | |
f5thhs | From Seneca's doctors sending him to Egypt in 20 A.D. to Doc Holliday being advised to head west in the 1870s, tuberculosis sufferers were told dry climates could heal them. How did this ineffective treatment become such a phenomenon, with sanitariums opening-up all over the world? | Tuberculosis killed one out of every seven people up to the dawn of the 19th century. That's a staggering toll that must have had a huge presence in every major city in the world. I imagine huge swaths of the population wandering around, hacking up blood.
Doctors told their many patients that, "dry air," could help. ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/f5thhs/from_senecas_doctors_sending_him_to_egypt_in_20/ | {
"a_id": [
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60,
31
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"text": [
"Medical practitioners have long made claims about what climates were beneficial for recovering from tuberculosis, but have rarely reached consensus. Hippocrates believed it was related to damp winds and changes in temperat... | [] | [] | [
[],
[]
] | |
4tbl6i | how do hydrofoils work? | I recently saw a [post](_URL_0_) about a man powered Hydrofoil, I was curious how the Hydrofoil works. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4tbl6i/eli5_how_do_hydrofoils_work/ | {
"a_id": [
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4,
3
],
"text": [
"The same way a wing on an airplane works if you're familiar with that. All wings work by producing a low pressure zone on the side of the wing that faces the direction in which you want to produce lift. This creates a net pr... | [] | [
"https://www.reddit.com/r/interestingasfuck/comments/4t7f3j/human_powered_hydrofoils/"
] | [
[],
[]
] | |
ohuq2 | If the earth moving around the sun at ~30km/s, and the sun is orbiting the centre of the galaxy at 220km/s and the galaxy is hurtling through space at between 130 and 600 km/s then is relativity slowing time down for us by a lot? | Doesn't this have implications for our view of the universe?
Source of average orbital speeds:
Earth: _URL_2_
Sun: _URL_0_
Milky way: _URL_1_ | askscience | http://www.reddit.com/r/askscience/comments/ohuq2/if_the_earth_moving_around_the_sun_at_30kms_and/ | {
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4,
3
],
"text": [
"There is no absolute reference frame from which to determine our velocity. If you want to discuss our motion relative to an observer at rest relative to the center of the galaxy, then we would appear to be undergoing time di... | [] | [
"http://en.wikipedia.org/wiki/Sun",
"http://hypertextbook.com/facts/1999/PatriciaKong.shtml",
"http://en.wikipedia.org/wiki/Earth"
] | [
[],
[]
] | |
956fd1 | how do shooter games work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/956fd1/eli5_how_do_shooter_games_work/ | {
"a_id": [
"e3qcu1o",
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"score": [
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"text": [
"It depends entirely on the game. Simple ones will treat the \"bullet\" like a laser that instantly hits where you're aiming, more complex ones will treat the bullet like an individual projectile with a... | [] | [] | [
[],
[],
[]
] | ||
2vb0vs | Why did Batista dominate Cuban politics from 1933-1952? | Was it anything particular about Batista? Was it something he was doing? Was there something about Cuban political society at the time? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2vb0vs/why_did_batista_dominate_cuban_politics_from/ | {
"a_id": [
"coglnuh"
],
"score": [
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"text": [
"To understand how Batista was able to gain and hold onto power for so long, you need to look at the preceding years in Cuban history. After a long period of direct American control, [Gerardo Machado y Morales](_URL_2_) was elected President of Cu... | [] | [] | [
[
"http://www.biografiasyvidas.com/biografia/b/fotos/batista.jpg",
"http://upload.wikimedia.org/wikipedia/commons/2/22/Grau.jpg",
"http://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Gmachado.PNG/220px-Gmachado.PNG",
"http://upload.wikimedia.org/wikipedia/commons/9/92/Carlos_Manuel_de_C%C3%A9sp... | |
1dkmux | What were some Irish perspectives on the Revolutionary War/American War for Independence? | Curious to know what the Irish thought of the war in the colonies, and what the prevailing opinions of Irish people at the time were: were there factions for it or against it, pro-British or pro-Colonials, or largely indifferent? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1dkmux/what_were_some_irish_perspectives_on_the/ | {
"a_id": [
"c9xxuw9"
],
"score": [
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"text": [
"One of the fundamental differences between Wolfe Tone and Robert Emmet is where they drew their inspiration from. Wolfe Tone and the United Irishmen were fascinated by the French revolution and it's thinkers, in particular Thomas Paine. (Rights o... | [] | [] | [
[]
] | |
d9oeff | Why in the early centuries C.E. did Europe, the Middle East, and Western Asia see such a rapid growth in messianic, monotheistic, dualistic religions such as Christianity, Islam, Manichaeanism, and Gnosticism? | As a follow-up, why were the previously dominant religions in those regions, Hellenic paganism and Zoroastrianism (itself dualistic and monotheistic) unable to resist the spread of those faiths? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/d9oeff/why_in_the_early_centuries_ce_did_europe_the/ | {
"a_id": [
"f1n04td"
],
"score": [
5
],
"text": [
"I would certainly contest the claim that Zoroastrianism was unable to resist the spread of those faiths. Its decline came as a result of the Arab _conquests_ and gradual conversion for social benefits, not some fanatical evangelism. In fact, it h... | [] | [] | [
[]
] | |
76cvnf | why do people die in forest fires unless they're trapped? can the fire spread fast enough to 'outrun' them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/76cvnf/eli5_why_do_people_die_in_forest_fires_unless/ | {
"a_id": [
"doczk95",
"doczmw4",
"dod06wn",
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"score": [
13,
3,
13,
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"text": [
"There's not a simple answer to this. Elderly victims are unable to readily evacuate. Stubborn victims underestimate how quickly the window to evacuate closes. Some victims have f... | [] | [] | [
[],
[],
[],
[]
] | ||
1gyf4q | how come we can transplant a lot of organs from organ donors but we can't donate genitals for gender reassignment surgery? | If I died, I'd be more than glad to donate my dick and balls to someone who wanted to become a male. Why can't we take genitals from dead men and women for gender reassignment surgery? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1gyf4q/how_come_we_can_transplant_a_lot_of_organs_from/ | {
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"cap22mp",
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"cap4v4b",
"cap5de4",
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61,
7,
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"text": [
"the genitals have a really extensive nerve and blood supply which would be a nightmare to transplant. That said, so does the face, and face transplants hav... | [] | [] | [
[],
[],
[],
[],
[
"http://en.m.wikipedia.org/wiki/Penis_transplantation",
"http://en.m.wikipedia.org/wiki/Uterus_transplantation",
"http://www.today.com/id/48976348/ns/health-mens_health/#.UFAyLFHkpfw",
"http://articles.timesofindia.indiatimes.com/2013-05-06/science/39063604_1_procedure-uter... | |
akpodo | Is today's western Europe so developed due to the fact that it exploited colonial resources? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/akpodo/is_todays_western_europe_so_developed_due_to_the/ | {
"a_id": [
"ef8ml1f"
],
"score": [
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],
"text": [
"This is a controversial question. There's two parts to it, firstly did colonialism (in the sense of European empires) matter, and secondly, how much did trade at all (e.g. intra-European trade or trade with the USA post Revolution) matter? \n\nIn... | [] | [] | [
[]
] | ||
33j0y9 | why do you call priests "father"? | I have seen alot of different answers to this question but what is the official one? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/33j0y9/eli5_why_do_you_call_priests_father/ | {
"a_id": [
"cqlenzk",
"cqlev82"
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"score": [
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2
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"text": [
"i believe that it is a reference to the holy trinity, (the father, the son, and the holy ghost) not 100% _URL_0_ the bible Jesus and St.Paul both refer to Abraham as father for he is a spiritual leader on earth, the closest... | [] | [] | [
[
"tho.In",
"http://www.catholic.com/blog/tim-staples/calling-priests-father"
],
[
"http://www.catholic.com/tracts/call-no-man-father",
"http://www.orthodoxresearchinstitute.org/articles/misc/tsichlis_priests_called_father.htm"
]
] | |
28pzl9 | Why didn't the UK and France perform any large scale attacks on Germany during the "Phoney War" period of WWII? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/28pzl9/why_didnt_the_uk_and_france_perform_any_large/ | {
"a_id": [
"cidauff",
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"score": [
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],
"text": [
"Follow-up question. The wikipedia page about the phoney war states that:\n\n > At the Nuremberg Trials, German military commander Alfred Jodl said that \"if we did not collapse already in the year 1939 that was due only to t... | [] | [] | [
[],
[]
] | ||
2nqecl | how is time not the same everywhere in the universe? | sorry for the stupid question but i don't get it how time is not consistent throughout the universe like when you move at light speed or something | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2nqecl/eli5_how_is_time_not_the_same_everywhere_in_the/ | {
"a_id": [
"cmfwscs"
],
"score": [
3
],
"text": [
"Since for most humans, we will always experience time at the same rate, it seems as if time is a constant in the universe, much like gravity.\n\nImagine that you knew nothing about gravity and how it is mathematically described. Would you realize... | [] | [] | [
[]
] | |
a1jl2y | Is it possible for two sounds to look exactly alike on an oscilloscope or spectral frequency display, yet still sound different? | Independent of the ADSR envelope, are there differences that a human might perceive? Assuming that a piano and clarinet playing the same fundamental frequency would show differences in overtones (harmonics and partials), could the same note (of a clarinet, but recorded with a different mic or in a different room) or ma... | askscience | https://www.reddit.com/r/askscience/comments/a1jl2y/is_it_possible_for_two_sounds_to_look_exactly/ | {
"a_id": [
"eaqlwhs"
],
"score": [
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],
"text": [
"Yes and no. An oscilloscope is going to show you the amplitude vs time, and it's going to be showing you everything but location (assuming you have properly sync'd time with your ears). Now does a sound on your left \"sound different\" from a sou... | [] | [] | [
[]
] | |
2ax1yd | When particles collide in the LHC, does it make a sound? | Edit: Thanks for all the replies everyone! | askscience | http://www.reddit.com/r/askscience/comments/2ax1yd/when_particles_collide_in_the_lhc_does_it_make_a/ | {
"a_id": [
"cizm362",
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"score": [
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26
],
"text": [
"The collisions occur in a vacuum, so no. The large electromagnets however, make a very audible hum.",
"No. Sound needs a medium to travel through. The LHC pipes are vacuum except for the proton projectiles which are foc... | [] | [] | [
[],
[]
] | |
3zsl2c | why do planes need de-icing when it's cold on the ground if they regularly fly at heights where it's much, much colder? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3zsl2c/eli5_why_do_planes_need_deicing_when_its_cold_on/ | {
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"score": [
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4,
2,
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"text": [
"They ice up when flying, too, but there are systems on board to deal with this. The trouble is that they're only in certainly specific areas of the skin of the plane because when t... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Air_Florida_Flight_90"
],
[],
[]
] | ||
5fhxg5 | please can someone explain the burden of proof in english law and the difference of it in civil and private law. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5fhxg5/eli5_please_can_someone_explain_the_burden_of/ | {
"a_id": [
"dake7s3",
"dakec60"
],
"score": [
3,
6
],
"text": [
"After some searching, private law is a subset of civil law _URL_0_ that mentions the relationship between people such as with contracts. Civil law concerns the relationship between civilians and their community in a non mil... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Private_law"
],
[]
] | ||
sz60g | Will Exercise help treat or worsen my cold? (flu) | askscience | http://www.reddit.com/r/askscience/comments/sz60g/will_exercise_help_treat_or_worsen_my_cold_flu/ | {
"a_id": [
"c4i79vt"
],
"score": [
4
],
"text": [
"Generally speaking exercise will worsen a cold, the best thing is rest. The fever run while sick is one of the body's responses to the infection, it acts to raise the temperature of the body above the optimal range for viral replication (so makin... | [] | [] | [
[]
] | ||
8edpes | How is sugar a food preservative, when micro organisms thrive off it? | Take jam for instance. I've heard that the sugar in it is what keeps it preserved, but I was always under the impression that micro organisms love sugar. So wouldn't that mean sugar is a bad preservative? | askscience | https://www.reddit.com/r/askscience/comments/8edpes/how_is_sugar_a_food_preservative_when_micro/ | {
"a_id": [
"dxxcolp"
],
"score": [
2
],
"text": [
"At high enough concentrations, sugar tends to suck whatever moisture it can out of bacteria, causing an environment that they cannot grow in.\n\nThere are also interactions causing protein inhibition, interference with DNA structure, or providing... | [] | [] | [
[]
] | |
20xag3 | Please explain why putting a flouresent lightbulb next to a novelty plasma globe causes the lightbulb to 'turn on' ? | As seen here: _URL_0_ | askscience | http://www.reddit.com/r/askscience/comments/20xag3/please_explain_why_putting_a_flouresent_lightbulb/ | {
"a_id": [
"cg7t776",
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"score": [
2,
2
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"text": [
"There is a high voltage at the glass surface of the plasma. This causes the CFL bulb to become ionized and emit light. You could do the same thing with a high voltage tesla coil. ",
"Plasma globes operate with a cen... | [] | [
"http://i.imgur.com/t6wVxPp.gif"
] | [
[],
[]
] | |
7218lk | can someone explain title ix and it’s new ruling as of yesterday? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7218lk/eli5_can_someone_explain_title_ix_and_its_new/ | {
"a_id": [
"dnezkn6",
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"score": [
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4
],
"text": [
"Title 9 has not actually changed. A few years ago, Obama issued a \"Dear Colleague\" letter saying instructing Universities to set up their own courts separate from police to determine guilt for rape and sexual assault. In t... | [] | [] | [
[],
[]
] | ||
68zq65 | why do industrialized nations tend to have much higher rates of depression / suicide than developing ones? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/68zq65/eli5why_do_industrialized_nations_tend_to_have/ | {
"a_id": [
"dh2jvzs",
"dh2jwot",
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"dh2mcfo"
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"score": [
2,
4,
24,
2
],
"text": [
"Stephen Ilardi makes a note (in therapeutic lifestyle change for depression) that a lack of physical activity and sun exposure is partially to blame\n",
"Someone in a first wo... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/List_of_countries_by_suicide_rate"
],
[]
] | ||
1dcpsd | Which vitamins and minerals were lacking, and which were in abundance, in the middle ages? | I am mostly interested in the diets of Central/South Americans, but any information about medieval dietary nutrition would be helpful.
I've found some literature on the basic nutritional makeup of medieval food (such as carbs, protein, etc.) but nothing on whether, say, citizens of the Incan empire had enough Vitamin ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1dcpsd/which_vitamins_and_minerals_were_lacking_and/ | {
"a_id": [
"c9p3x7b"
],
"score": [
3
],
"text": [
"Sorry I can't answer with regards to Central and South America, but I can say something about medieval Europe.\n\nEvidence suggests that medieval European peasants - specifically early-medieval women - were not getting enough iron. The combinatio... | [] | [] | [
[]
] | |
g0l3bp | what exactly does hot lemon water do to the body when you drink it first thing in the morning? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/g0l3bp/eli5_what_exactly_does_hot_lemon_water_do_to_the/ | {
"a_id": [
"fnab9ee",
"fnai6r1",
"fnanbxc"
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"score": [
59,
5,
5
],
"text": [
"It hydrates you and tastes a little bit lemony which can be nice. It also gives you that \"I don't even need caffeine to wake up\" chic that will certainly impress your family and pets.",
"The aci... | [] | [] | [
[],
[],
[]
] | ||
618v86 | why does brief lack of oxygen to the brain often feel good? | Not everyone thinks it feels good but a lot of people, including me, think it does. For example, if I stand up too quickly after sitting down for a while my vision fades and I get a rush of euphoria. Stupid teenagers play the "choking game", where they intentionally reduce bloodflow to the brain to get euphoria or a "h... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/618v86/eli5_why_does_brief_lack_of_oxygen_to_the_brain/ | {
"a_id": [
"dfcofai",
"dfcvuu2"
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"score": [
22,
2
],
"text": [
"Ok, this is only a guess (until other, more knowledgable people answer your question), but first to clarify: your vision fading after standing up too quickly is due to low blood pressure, not lack of air.\n\nI think perhaps... | [] | [] | [
[],
[]
] | |
oyta9 | why do people expose themselves on internet sites like chatroulette, /r/gonewild, and omegle? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/oyta9/eli5_why_do_people_expose_themselves_on_internet/ | {
"a_id": [
"c3l4k4n",
"c3l4zrn",
"c3lfkfv"
],
"score": [
27,
24,
2
],
"text": [
"They want attention and validation. ",
"Psych here - The desire to expose oneself for sexual gratification is known as exhibitionism, essentially they get off on showing people their junk. In orde... | [] | [] | [
[],
[],
[]
] | ||
1csnm4 | Why does the human body check the CO2 amount instead of O2 to determine if you got enough oxygen? | askscience | http://www.reddit.com/r/askscience/comments/1csnm4/why_does_the_human_body_check_the_co2_amount/ | {
"a_id": [
"c9jlou8",
"c9k3hyu"
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"score": [
38,
2
],
"text": [
"CO2 forms a buffer system in your blood , it actually exists as several different components depending on how much of it there is (CO2 +H20 = > H2CO3 < - > HCO3^- < - > CO3^(2-)). If CO2 builds up in your blood it cau... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Peripheral_chemoreceptors"
]
] | ||
9ikxf9 | Dating in archeology and geology depend largely on the fact that there are layers of earth/ice. Is the earth getting bigger as these layers are added? | askscience | https://www.reddit.com/r/askscience/comments/9ikxf9/dating_in_archeology_and_geology_depend_largely/ | {
"a_id": [
"e6kphd7",
"e6ku3tw"
],
"score": [
9,
3
],
"text": [
"The material which forms those layers comes from someplace else on earth. For example, a mountain may be eroding, and the material which washes down is then deposited at lower elevations. Snow comes from atmospheric moistu... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Earth_mass#Variation"
],
[]
] | ||
uaakn | Ancient Roman culture vs. Modern Italian culture | I wrote a rather complicated, awkward sounding text here first until I realized that my question could probably be asked a lot more succinct like this: how many aspects of 'Ancient Roman culture' carried over into Modern Italian culture and society?
I'm asking this because my superficial perceptions of Ancient Rome c... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/uaakn/ancient_roman_culture_vs_modern_italian_culture/ | {
"a_id": [
"c4tnth5",
"c4to4hl",
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"score": [
23,
9,
2
],
"text": [
"I have a theory that modern Christianity received its values from Ancient Rome, and not the other way around. Popular belief seems to be that Ancient Romans were these amoral pagans who didn't get mora... | [] | [] | [
[],
[],
[]
] | |
201wft | how does stuff on the internet never go away? | When I was growing up my parents and teachers always stressed the fact that once something was on the internet it never goes away. To what extent is this true and in what context? Say I post a picture to twitter and delete it before someone else has saved the image is it still out there somewhere other than just on my ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/201wft/eli5_how_does_stuff_on_the_internet_never_go_away/ | {
"a_id": [
"cfz049f",
"cfz09mz",
"cfz0jil",
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"score": [
3,
2,
3,
2
],
"text": [
" > Say I post a picture to twitter and delete it before someone else has saved the image is it still out there somewhere other than just on my computer's memory? \n\nQuite possibly... | [] | [] | [
[],
[],
[],
[
"http://archive.org/web/"
]
] | |
b5ym9m | what happens to the money bad guys made when they go to jail? | What happens to the profits of stuff like human trafficking and drug manufacturing when the criminals go to jail? You can’t exactly return it to its owners like a robbery, right? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b5ym9m/eli5_what_happens_to_the_money_bad_guys_made_when/ | {
"a_id": [
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"ejgynrt",
"ejh4wcq",
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"score": [
9,
36,
7,
4,
2
],
"text": [
"Usually the government seizes whatever it can get its hands on. Money that's hidden tends to either get grabbed by other criminals, or just stay hidden.",
... | [] | [] | [
[],
[],
[],
[],
[]
] | |
817aph | If the fusion reactions in stars don't go beyond Iron, how did the heavier elements come into being? And moreover, how did they end up on earth? | I know the stellar death occurs when the fusion reactions stop owing to high binding energy per nucleon ratio of Iron and it not being favorable anymore to occur fusion. Then how come Uranium and other elements exist? I'm assuming everything came into being from Hydrogen which came into being after the Big bang.
Thank... | askscience | https://www.reddit.com/r/askscience/comments/817aph/if_the_fusion_reactions_in_stars_dont_go_beyond/ | {
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"score": [
2590,
20,
163,
16,
131,
11,
6,
6,
4,
3,
6,
5,
... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/S-process",
"https://en.wikipedia.org/wiki/R-process"
],
[],
[
"https://www.space.com/11729-hubble-telescope-photo-galaxy-fountain.html",
"https://en.wikipedia.org/wiki/Abundance_of_the_chemical_elements",
"http://www.newsweek.com/solar-systems-wolf-r... | |
335v1h | How much did the Poles and Hungarians collaborate with the Nazis? | FBI Director James Comey [has found himself embroiled in controversy](_URL_0_) for a paragraph in [his Washington Post article](_URL_2_) commemorating Holocaust Remembrance Day.
The paragraph which motivated the Polish to summon the American ambassador for an apology goes as follows:
> "In their minds, the murderers... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/335v1h/how_much_did_the_poles_and_hungarians_collaborate/ | {
"a_id": [
"cqicvam"
],
"score": [
9
],
"text": [
"I don't really understand where Hungary fits in. They were in a completely different situation than Poland. Hungary was nether slavic, nor an occupied country (until '44).\n\nThey were an ally of Germany, with their own relatively autonomous gove... | [] | [
"http://www.reuters.com/article/2015/04/19/us-poland-us-holocaust-idUSKBN0NA0G420150419",
"http://www.reddit.com/r/AskHistorians/wiki/wwii#wiki_axis_alliance_and_post-war_plans",
"http://www.washingtonpost.com/opinions/the-scariest-lesson-of-the-holocaust/2015/04/16/ffa8e23c-e468-11e4-905f-cc896d379a32_story.ht... | [
[]
] | |
b5xlic | how do vehicle brakes work? how can they withstand the immense physical stress throughout a car's lifespan? | Searched but couldn't find what I wanted to know.
How do brakes in cars/trucks work? Every time I drive, I can't help but think about how much physical stress (whether it be friction or whatever) my brakes are taking, and wonder how long it will last before the ability to decelerate is compromised. I imagine the amoun... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b5xlic/eli5_how_do_vehicle_brakes_work_how_can_they/ | {
"a_id": [
"ejglvne",
"ejglzsu"
],
"score": [
2,
10
],
"text": [
"The brakes on a car are made of a special compound that is harder and not as sticky as pure rubber, but not as slippery and hard as pure steel. When pressed really hard against a brake rotor or drum this creates friction. T... | [] | [] | [
[],
[
"https://cdn4.explainthatstuff.com/porsche-disc-brakes.jpg",
"https://www.reddit.com/r/explainlikeimfive/search?q=hydraulics&restrict_sr=on&include_over_18=on&sort=relevance&t=all",
"https://qph.fs.quoracdn.net/main-qimg-d3d35e2cab0a408484efe74aa7e10686"
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13x40u | - the ti-89 calculator has been around since 1998, still costs $200, and has yet to have been replaced as the standard... why? | The TI-89 Titanium retails for 200 US Dollars (can be found for about 130-140). The TI-89 has been around since 1998. Since then we've developed smart phones, tablets, kindles, etc. Why is the TI-89 still the standard when we could seemingly replace it with something much more powerful for the same or a lesser price... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/13x40u/eli5_the_ti89_calculator_has_been_around_since/ | {
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3nzo9t | I am an educated Italian living in Rome a couple of centuries before the fall of Constantinople to the Turks. What terms do I use to refer to the eastern Roman empire? | It seems kind of weird to call them "the Romans," given that I am a Roman myself, and I've heard the term "Byzantine" was invented much later by historians. So what would I call those Greek-speaking Christians based in Constantinople? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3nzo9t/i_am_an_educated_italian_living_in_rome_a_couple/ | {
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"Those that we today call Byzantines refereed themselves to as Romans, in Greek \"Ῥωμαῖοι\". They considered themselves of 1) Greek language, culture, literature, and science, 2) Roman law and tradition, 3) Christian faith. They saw themselves as... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Liutprand_of_Cremona",
"http://legacy.fordham.edu/halsall/source/urban2-5vers.html"
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2ltc15 | Breaking a bar magnet in half creates two new bar magnets with a north and south pole. How many times can a bar magnet be broken in half until the poles of the new parts are no longer discernible? | *Well this has been blown up quite a bit so I'll leave it at that.*
____
Pretty much as the question states.
Basically, how many times can [this](_URL_3_) be done until the poles of the new pieces are no longer discernible, or will they always be there?
~~edit: I'm studying for my physics midterm tomorrow - which ... | askscience | http://www.reddit.com/r/askscience/comments/2ltc15/breaking_a_bar_magnet_in_half_creates_two_new_bar/ | {
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"The poles aren't physical things. The magnets are made of atoms, and each atom can be thought of as producing ... | [] | [
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"http://arxiv.org/pdf/0903.2772v1.pdf",
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4rh3c7 | Why haven't we found more primordial black holes? | It seems we have discovered quite a few black holes throughout the universe, but primordial black holes are still being debated. Why are they so much harder to detect? How do we detect a normal black hole?
Thanks! | askscience | https://www.reddit.com/r/askscience/comments/4rh3c7/why_havent_we_found_more_primordial_black_holes/ | {
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"Well for one, we don't know if they actually exist.\n\nBlack holes are detected usually from the accretion disk around them (emitting x-rays and whatnot) or through their gravitational influence on co-orbiting objects, as well as a new method of ... | [] | [] | [
[]
] | |
1izbol | eye sight ratios (20/20, 20/15..) | Recently, I was prescribed contacts, and the Doctor told me I am seeing a little better than 20/15. I guess I've never looked into it, but I've always heard people bragging about their 'perfect' 20/20 vision, but this seems to be a misconception among people. Could you simply explain what these ratios actually stand fo... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1izbol/eli5_eye_sight_ratios_2020_2015/ | {
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"It's basically how well you see something at 20 feet, compared to how close the average person would have to be to see it that well. So if your sight is 20/20 it means that at 20 feet you see what one would expect the averag... | [] | [] | [
[],
[]
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5go9um | can you eat too much protein? if so, were does your body store it/what happens with it? | For fitness purposes and out of simple curiosity.
| explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5go9um/eli5_can_you_eat_too_much_protein_if_so_were_does/ | {
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"Sure. Depends on the composition of the protein but proteins are broken down into their component parts, amino acids. Amino acids are then processed or broken down further. If you have too much in your bloodstream, your live... | [] | [] | [
[],
[]
] | |
2gwf2l | how come we can get rid of fleas so easily but headlice we can't? | Question on behalf of my grandma.
We can treat cats and dogs for fleas and ticks with a one-time treatment but headlice require a lot of combing and leaving treatments in for hours at a time.
I know they're different creatures but why aren't the treatments similar? Are fleas and headlice that different? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2gwf2l/eli5_how_come_we_can_get_rid_of_fleas_so_easily/ | {
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"Probably because we are willing to use harsher chemicals on our pets than on ourselves.",
"There are a lot of ways to treat lice and a lot of ways to treat fleas. Some of them are similar, some of t... | [] | [] | [
[],
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rgctu | Is it possible to reduce gravity without actually removing any of the mass creating the gravity? | I recently read a post about how much gravity a human could withstand and it looks as if even at 1.25G we will have many problems. What I'm wondering is if we can somehow create a sort of safe dome on a planet with more gravity that would make it safe for us. I cannot think of a way this could be done but I'm sure if ... | askscience | http://www.reddit.com/r/askscience/comments/rgctu/is_it_possible_to_reduce_gravity_without_actually/ | {
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"If you could change the shape of the planet, that would alter the gravity. But if the surface gravity were 1.25G, the planet would be far too large to support its own weight in any shape other than a (slightly flattened at t... | [] | [] | [
[],
[]
] | |
57849v | what is the difference between calcium and vitamin d? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/57849v/eli5_what_is_the_difference_between_calcium_and/ | {
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"Calcium is a type of atom that has 20 protons and 20 electrons.\n\nVitamin D is a molecule composed of many atoms. Specifically, 27 carbon atoms, 44 hydrogen atoms, and 1 oxygen atom."
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} | [] | [] | [
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35nshh | Does the speed of digestion change based on how hungry or starved you are? | Does the speed of digestion (acidity/strength of stomache acid?) change if you are more hungry and slow down if you are full? Or is it fairly consistent regardless of your current state of hunger? | askscience | http://www.reddit.com/r/askscience/comments/35nshh/does_the_speed_of_digestion_change_based_on_how/ | {
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"It does not speed up. If anything it slows down due to blood being directed to other organs, this is especially true when starved. Your metabolism slows down aswell. There is no reason for the body to speed up digestion wh... | [] | [] | [
[],
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3tqiqz | What was city defenses like in ancient Athens? Did they have an effect on city life? | I've been looking for articles on Athenian defenses in regards to cities, and have found surprisingly little. Anyone know anything about it?
| AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3tqiqz/what_was_city_defenses_like_in_ancient_athens_did/ | {
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"City walls and fortifications were of extreme importance to cities within the Archaic and Classical Periods. Before the introduction of siege artillery in the 4th Century sieges heavily favored the defense, and assaulting walls directly was extr... | [] | [] | [
[]
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67hwp0 | I just learned that the Aral Sea no longer exists and is now mostly a desert. Are there, and what are other comparable "recent" drastic changes of physical geography or biomes? | Link to wikipedia article [here.](_URL_0_)
I'm a bit surprised I didn't hear of this before, since it seems like a perfect example of human-caused climate change. I'm also aware that many dams will create sizeable lakes, but this seems like it would be much smaller than the disappearance of the Aral sea. | askscience | https://www.reddit.com/r/askscience/comments/67hwp0/i_just_learned_that_the_aral_sea_no_longer_exists/ | {
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"An important clarification, as discussed in the Wikipedia article you linked, the desiccation of the Aral is not primarily driven by climate change, but rather by diversion of water in massive (and poorly designed) irrigation projects to try to ... | [] | [
"https://en.wikipedia.org/wiki/Aral_Sea"
] | [
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"https://en.wikipedia.org/wiki/Desertification",
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1mbn6j | In primary sources that predate the late modern period, how frequently do historians find errors in spelling, grammar, and the like? How easy or how difficult is it for historians to recognize such errors, especially in older variants of languages? And how do translators deal with these errors? | This is obviously a bit of a broad question, but it occurred to me as I was thinking about the following: given the ubiquity of basic spelling and grammar mistakes in most modern writing, a historian studying the 21st century from the future would have to be able to recognize writing mistakes to read his/her sources wi... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1mbn6j/in_primary_sources_that_predate_the_late_modern/ | {
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"I work with 18th century documents more than 19th century, but I do see spelling errors here and there. It's not a big deal to me if it's in English, you always know what they meant, if I'm quoting th... | [] | [] | [
[],
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3gyhxi | If all ancient Greek and Roman writings were lost, what would we know about ancient world from archaeology alone? | Imagine that "Dark Ages" were really dark and all ancient writings were completely lost and forgotten. Later new civilization that is interested in history and archaeology would rise up in Europe. What could they learn about ancient world from archaeology alone?
This question is meant to explore historical method, not ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3gyhxi/if_all_ancient_greek_and_roman_writings_were_lost/ | {
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"I think we would know a lot more about the Romans than the Greeks for starters. Roman history is much more embedded in oral history and tradition in modern western society than the earlier Greek. \n\n\nStill we would lose a... | [] | [] | [
[],
[]
] | |
rs2dy | what made kurt cobain stand out from the music of his generation? | Now don't get me wrong, I love his music. But does some of his idolization come from that he committed suicide? Like a martyr effect? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/rs2dy/eli5_what_made_kurt_cobain_stand_out_from_the/ | {
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"I actually had this conversation with a friend last week. In my opinion, a lot of music is about timing. Severa... | [] | [] | [
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1emkkh | How do we measure the mass of remote objects in space? | How do scientists know that this meteor which is millions of kilometers away has a mass of, say, 100 kg? | askscience | http://www.reddit.com/r/askscience/comments/1emkkh/how_do_we_measure_the_mass_of_remote_objects_in/ | {
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"http://www.maidenhead-astro.net/astocc/observing/asteroid_chords.jpg"
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[
... | |
3g6tak | Is it possible to use an interpolating polynomial to interpolate between other polynomials? | That is, if for instance I have two polynomials and I want to interpolate to find a polynomial 'between' them, could I use an interpolating polynomial to interpolate the two polynomials? I realize this question sounds a little strange but I'm very curious. | askscience | http://www.reddit.com/r/askscience/comments/3g6tak/is_it_possible_to_use_an_interpolating_polynomial/ | {
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"In the sense that you can write a polynomial which interpolates between two chosen points in your original polynomials? Sure, that can be done easily.\n\nLet's say that we want to ... | [] | [] | [
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4rp8di | how do food allergies compare to pollen/pet allergies, and what makes it so that they can't be suppressed with medication? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4rp8di/eli5_how_do_food_allergies_compare_to_pollenpet/ | {
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"Anti-Histamines are a prescription for _mild_ food allergies. The reason it's not a useful treatment for more severe is because the distribution of offending agent is widespread and reactions are likely to be more systemic as a result. This mea... | [] | [] | [
[]
] | ||
2bgmbl | how does fm radio work? | How can we tune into a certain frequency if we are modulating it? Wouldn't that mean you are changing the frequency, making your radio station lose signal when it is broadcasting? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2bgmbl/eli5how_does_fm_radio_work/ | {
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"The amount of modulation on a particular carrier frequency (the frequency you tune in to) is very limited. It is a small range with respect to the frequency differences between different radio stations. So when you tune in to a specific frequen... | [] | [] | [
[]
] | |
f47bnh | why do our skin creates static when it's accidentally touched by another person or a metal object? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f47bnh/eli5_why_do_our_skin_creates_static_when_its/ | {
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"Our skin doesn't create the static charge, it's caused by a build up of electrons on the surface of an object e.g. a balloon. If you rub a balloon against your hair, electrons less tightly bound to the atoms I. Your hair can move to the balloon. ... | [] | [] | [
[]
] | ||
32tg3i | why are click bait links so shitty? | Sometimes I want to see the best bodies in hollywood or 7 crazy ways my socks are killing fish. why are the links always redirecting me to another site? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/32tg3i/eli5_why_are_click_bait_links_so_shitty/ | {
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"Because they are working as is. You and many like you are clicking on them. If they didn't work as is they would improve in quality until they did work.",
"Each time you open a... | [] | [] | [
[],
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363r0y | why does it seem dzhokhar tsarnaev went through trial faster than james holmes? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/363r0y/eli5_why_does_it_seem_dzhokhar_tsarnaev_went/ | {
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"He did. The bombing took place in April of 2013, and the trial wrapped up today, while James Holmes' Aurora shooting took place in July of 2012 and isn't scheduled to end until this September.\n\nA lot of this has to do with the defense - Holmes... | [] | [] | [
[]
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2inkdc | How did the Inuit light their kudliks in winter? | Most (all?) indigenous peoples across the globe created fire by friction-- drills, bow drills, fireboards, and so on. However, the Inuit lived far above the treeline in the Canadian Arctic. They were still able to heat their dwellings by using soapstone dishes filled with seal blubber (kudliks).
One question that ha... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2inkdc/how_did_the_inuit_light_their_kudliks_in_winter/ | {
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"Good question. I'm on my mobile right now, but I'll do some digging around about how flame was actually generated.\n\nThere are some considerations worth keeping in mind though: you are overlooking the most obvious source for straight poles and ... | [] | [] | [
[
"https://archive.org/details/handbookofindian00hodg"
]
] | |
8h2khl | During the Antebellum era, were there any practices for maintaining a safe, healthy slave workforce? Like an early OSHA or physical therapy | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8h2khl/during_the_antebellum_era_were_there_any/ | {
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"I've written before about legal and social proscription regarding treatment of slaves which can be found [here](_URL_0_), but in short... There was very little to protect them. A smattering of laws existed that we're enforced only in the most ext... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/6ffhx5/could_a_plantation_owner_in_precivil_war_america/dihqmyx/"
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104v9u | How do they do this? Fog free section in bathroom mirrors | It's a common observation that bathroom mirrors tend to get foggy after a hot water shower. It's a mild annoyance because now you need clean it up if you want to see yourself in mirror.
_URL_0_
This pic was grabbed in bathroom of my hotel in Japan, but I've seen this in several other hotels. How do they manage to keep... | askscience | http://www.reddit.com/r/askscience/comments/104v9u/how_do_they_do_this_fog_free_section_in_bathroom/ | {
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"text": [
"You can get electric heating pads that stick on the back of the mirror and warm it up just enough to eliminate fogging. They are usually wired into the lighting circuit. ",
"... | [] | [
"http://imgur.com/7gmEO"
] | [
[],
[],
[],
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"http://www.iof.fraunhofer.de/en/business-fields/optical-surfaces-and-coatings/strukturierte_oberflaechen/ultra-hydrophobic-and-hydrophilic-anti-fog.html"
]
] | |
1ws5wd | Do storms/fronts travel continuously around the earth? | Do the same storms that we experience ever travel around the earth and hit us again? What about hot/cold fronts? Are they created or destroyed in a certain area? What about at the poles?
Let's say if New York gets hit by a major rainstorm, and it travels to the UK, and then across Asia, and then Japan, could it theore... | askscience | http://www.reddit.com/r/askscience/comments/1ws5wd/do_stormsfronts_travel_continuously_around_the/ | {
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"About where the Canada and US border is there's a stationary front. Cold up north warm south. Occasionally the front will cause a \"wave\" and a front will branch free from it. Most of the time it will collide with a warm fr... | [] | [] | [
[],
[]
] | |
zrkvm | What are the social, cultural, and political developments that have contributed to the shift of the Islamic world from a leader in science and technology to a more religious conservative state? | Basically, how did the Islamic world go from inventing Algebra and revolutionizing medicine to situations like the current state of Egypt, Iran, and many other theocratic countries that seem radically different than their medieval counterparts. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/zrkvm/what_are_the_social_cultural_and_political/ | {
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"A surprising amount ... | [] | [] | [
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8bljou | Help with finding historical items | I’m doing a project for a university class and the project is find ten items from a decade,(mine is the 1790s), that characterizes the decade well. The item has to be at a museum and I’m having trouble finding museums that give you access to their collection online. Help? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8bljou/help_with_finding_historical_items/ | {
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"dx7u8o2"
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"score": [
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"text": [
"The met and lacma both have online collections; see their websites and the “art” or “collections” tab. In general most art galleries have at least part of the collection online. You can search by date and location or by keywords."
]
} | [] | [] | [
[]
] | |
6ul5q7 | Average people's views on the Emperor-Shogun relationship in Japan. | Personally, I'm not very knowledgeable on medieval to early-modern Japanese history, and was curious, what did the average person think of the fact that the shogun was often the de facto ruler of Japan? I'd imagine that it wouldn't be something that they would think (or care) about too often.
Additionally, considering... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6ul5q7/average_peoples_views_on_the_emperorshogun/ | {
"a_id": [
"dltilok"
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"text": [
"**Part 1 of 2:**\n\nNote: The English-language convention for ordering Japanese names is usually to put given name first, then family name. However, the convention for ordering pre-Meiji historical names is to keep them in the original Japanese ... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/22usym/difference_between_the_shogun_and_the_emperor_in/cgqmgra/",
"https://www.reddit.com/r/AskHistorians/comments/5wfvwm/monday_methods_eric_hobsbawm_and_the_invention_of/"
]
] | |
2q9jow | if you put an object in between 4 of the same poles on 4 magnets, would they float? | Okay okay so hear me out, like if there was 4 humongous magnets and they were all north poles and you put a human in between them, would the human float?
[Example](_URL_0_) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2q9jow/eli5_if_you_put_an_object_in_between_4_of_the/ | {
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"text": [
"No, the human wouldn't float because human's are not magnetic.\n\nHowever, if you put a magnetic south pole in that position, it would \"float\". This is the technique used in Maglev trains.",
"probably, yes, but you'd n... | [] | [
"http://i.imgur.com/OD3Xzs5.png"
] | [
[],
[
"http://en.wikipedia.org/wiki/Magnetic_levitation#Diamagnetic_levitation",
"https://www.youtube.com/watch?v=A1vyB-O5i6E"
]
] | |
27a7fr | Do wild dogs such as coyotes and wolves interbreed in the wild creating wild mutts? | My girlfriend and I went to the zoo and were talking about how coyotes got a bad wrap and seemed like mutts of the wild (not as cute as a fox, not as badass a wolf). It made me wonder if there actually was interbreeding between wild dogs like how there is with domestic dogs. | askscience | http://www.reddit.com/r/askscience/comments/27a7fr/do_wild_dogs_such_as_coyotes_and_wolves/ | {
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"text": [
"There's something called the \"coywolf.\" Researchers even found one in Central Park!\n\nThere was a great Nature doc on it - _URL_0_",
"Yes they do, here is preview of a paper... | [] | [] | [
[
"http://www.pbs.org/wnet/nature/episodes/meet-the-coywolf/meet-the-coywolf/8605/"
],
[
"http://www.jstor.org/discover/10.2307/2409486?uid=3738032&uid=2460338175&uid=2460337935&uid=2&uid=4&uid=83&uid=63&sid=21104259225083"
],
[],
[]
] | |
2voa6v | Why do I perceive my facial features and voice differently in pictures/recordings than in life (mirrors/my own ears)? | Is this neurological? Is it due to the recording devices (mic/camera)? I've heard/read a lot of conflicting information on both. | askscience | http://www.reddit.com/r/askscience/comments/2voa6v/why_do_i_perceive_my_facial_features_and_voice/ | {
"a_id": [
"cojnikn",
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"score": [
7,
4
],
"text": [
"Your voice sounds different because some sound travels through your head, mostly transmitted through bones, while some travels through the air. The sound travelling through your head sounds a little different than sound trav... | [] | [] | [
[],
[]
] | |
8w0r5t | how does your body heal pimples/zits? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8w0r5t/eli5_how_does_your_body_heal_pimpleszits/ | {
"a_id": [
"e1td1m3"
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"score": [
3
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"text": [
"After forming they eventually begin to dry out shrinking in size until it disappears. Withing the pimpi/zit is a mix of oil and puss which will go away once dried out. To speed up the process pop the pomple/zit when it the top turns white and squ... | [] | [] | [
[]
] | ||
65hv3x | what would happen if the 43 million student borrowers that the department of education lends $1.3trillion to, decided to not make their payment? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/65hv3x/eli5_what_would_happen_if_the_43_million_student/ | {
"a_id": [
"dgaenri"
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"score": [
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"text": [
"Student loans are one of the few types of debt that you cannot discharge save for death or severe disability. This means you cannot just \"choose to not pay\" them. If you do not pay the government will garnish your wages. So in the scenario you ... | [] | [] | [
[]
] | ||
fs04se | If viruses aren't alive, what do scientists mean when they say the coronavirus can live on surfaces for hours? | askscience | https://www.reddit.com/r/askscience/comments/fs04se/if_viruses_arent_alive_what_do_scientists_mean/ | {
"a_id": [
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"text": [
"When they say it can \"live\" in the surface for X hours, it just means the viral particle can resist being destroyed, or becoming in... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | ||
12ej1q | Why aren't more Historians active in politics/seeking office? Are there any notable Historian Politicians? | It just seems like the most qualified people, or better qualified than most, would be historians. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/12ej1q/why_arent_more_historians_active_in/ | {
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"score": [
... | [] | [] | [
[
"http://bioguide.congress.gov/scripts/bibdisplay.pl?index=m000452"
],
[],
[],
[],
[],
[
"http://www.gutenberg.org/ebooks/9104"
],
[],
[],
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Historical_Association"
],
[],
[],
[],
[
"http://en.wikipedia.org/wi... | |
dbl4jq | Did Nazi Germany really introduce any programs that would be considered "Socialist" today? | I know that the "Socialist" part of the Nazi name was pretty much false advertising, but every time I see one of those current right wing memes that tout Nazi gun control, higher education, and health care I always wonder if there really were any socialist programs initiated? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dbl4jq/did_nazi_germany_really_introduce_any_programs/ | {
"a_id": [
"f23e4x7"
],
"score": [
5
],
"text": [
"The FAQ has an entire section called [How Socialist Was National-Socialism?](_URL_2_) which features great answers by [/u/kieslowskifan](_URL_0_) and [/u/g0dwinslawyer](_URL_1_) that might help answer your question."
]
} | [] | [] | [
[
"https://www.reddit.com/u/kieslowskifan",
"https://www.reddit.com/u/g0dwinslawyer",
"https://www.reddit.com/r/AskHistorians/wiki/faq/europe#wiki_how_socialist_was_national_socialism.3F"
]
] | |
2fffe2 | In 1491, what percent of humans were Native Americans? | Indigenous peoples of the Americas make up 52 million people, of less than 1% of the world's population, according to Wikipedia. This number is in the hundreds of millions if including Mestizos. Before apocalyptic plagues erased Native American societies from the face of the planet, and New World crops increased the po... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2fffe2/in_1491_what_percent_of_humans_were_native/ | {
"a_id": [
"ck8xxrn"
],
"score": [
10
],
"text": [
"It's impossible to REALLY know, but the answer would be between 1.9% and 11.8%. Estimates put the global population in 1500 between 425,000,000 and 540,000,000. Pre-Columbus native populations are estimated between 10,000,000 and 50,000,000. If ... | [] | [] | [
[]
] | |
2mlayy | how do games detect hackers? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mlayy/eli5how_do_games_detect_hackers/ | {
"a_id": [
"cm5a7ox"
],
"score": [
2
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"text": [
"Different anti cheats do it in different ways.\nThings like fairfight take occasional screenshots to check for abnormalities (such as wallhacks and other things you shouldn't normally see, like healthbars) as well as checking collected statistics... | [] | [] | [
[]
] |
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