q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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32d4of | Was 'The Prince' by Niccolo Machiavelli actually read by monarchs or their heirs? | The book is basically a how-to on Ruling but I haven't found much on whether or not monarchs actually read or took interest in the book and Machiavelli's influence on rulers in his time.
Anybody know anything about this? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/32d4of/was_the_prince_by_niccolo_machiavelli_actually/ | {
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"I don't know about reading and following it, but Foucault does mention in Security, Population, Territory, that The Prince apparently had more influence as a book that other writers of that time try to ... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Anti-Machiavel"
],
[
"http://www.reddit.com/r/AskHistorians/comments/324xj7/how_was_the_prince_by_machiavelli_received_in_its/"
],
[
"http://www.eiu.edu/historia/Carswell2.pdf"
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] | |
7k1l9m | what are gas giants and why can't we land in them? | **Edit** Thanks for all the answers, that clarified alot | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7k1l9m/eli5_what_are_gas_giants_and_why_cant_we_land_in/ | {
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"text": [
"Exactly what it says on the tin: they are giant balls of gas. We can't land on them because: they are giant balls of gas.\n\nEven theoretical models that permit them to have a surface of some kind at the center, it would be... | [] | [] | [
[],
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63459w | Why were the nazis killing Jews at such a rate during the war, why not wait until after and channel all the money/time/effort into the fighting? | I was just watching a documentary on Auschwitz and I was asking myself why on earth anyone would do such horrendous things to fellow humans, and then it struck me that it didn't even seem to make sense practically, let alone ethically. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/63459w/why_were_the_nazis_killing_jews_at_such_a_rate/ | {
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"text": [
"There's a few reasons:\n\n1. The \"Stabbed in the back\" myth wasn't just a convenient propaganda tool, it was an actual belief of many in German society and in the Nazi party. The Third Reich was in many ways a result ofth... | [] | [] | [
[],
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"https://www.reddit.com/r/AskHistorians/comments/3n4mx8/how_much_did_the_holocaust_cost_germany/",
"https://www.reddit.com/r/AskHistorians/comments/4fcte0/what_is_the_concensus_on_the_weak_dictator_theory/",
"https://www.reddit.com/r/AskHistorians/comments/3xc03h/just_how_much_of_the_wehrmacht_w... | |
d3s00b | Did Mao Zedong lead a lavish, opulent, and sexually promiscuous private life? | When I was young I read a autobiography called 'Life and Death in Shanghai' and always wondered how accurate it was. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/d3s00b/did_mao_zedong_lead_a_lavish_opulent_and_sexually/ | {
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"text": [
"This is a great question and a great way to discuss how messy history can be. In theory, the answer should be the truth. He either did or didn't. But because of who Mao was and what he represented, there are multitudes of people who will swea... | [] | [] | [
[]
] | |
qhwzc | how i can feel the presence of someone entering a room | Often when I'm in my room asleep/half asleep and someone comes in to grab something quietly I can 'feel' them enter and exit the room.
What exactly is this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/qhwzc/eli5_how_i_can_feel_the_presence_of_someone/ | {
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"text": [
"Sound and air pressure would be my answer. Even if they're quiet, in a quiet room they disturb the static air mass and you can pick up on that. One of the cool things about being an animal.",
"Y... | [] | [] | [
[],
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evwato | What is the smallest number of cells in a multicellular organism found in nature? | Basically, a nematode worm apparently has around 1000 cells. Are there any multicellular organisms with, say, 10 cells? | askscience | https://www.reddit.com/r/askscience/comments/evwato/what_is_the_smallest_number_of_cells_in_a/ | {
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"text": [
"[Myxozoans](_URL_0_) are the smallest members of the animal kingdom. They are parasites that live between the cells of larger animals like fish. The smallest never get above 10 µm, and are made of exactly seven cells. I ha... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Myxozoa"
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"http://www.microscopy-uk.org.uk/mag/imgjan06/Fig3.jpg",
"http://protist.i.hosei.ac.jp/pdb/Images/Chlorophyta/Basichlamys/sp_1.jpg",
"https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0081641",
"https://journals.plos.org/plosone/... | |
2qm8mb | What does traditional Native American music actually sound like? | Mostly, if not only heard holywoods version. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2qm8mb/what_does_traditional_native_american_music/ | {
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"text": [
"It really depends on which nation you're talking about, as they had different resources to make instruments with, different aesthetic preferences, and contact with different other nations.",
"In Ala... | [] | [] | [
[],
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"https://www.youtube.com/watch?v=ao7Fn2EVMto",
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"https://www.youtube.com/watch?v=e_LHv62R--M",
"https://www.youtube.com/watch?v=22xKZaxV... | |
5ll4g2 | why do roads have unnecessary bends? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ll4g2/eli5why_do_roads_have_unnecessary_bends/ | {
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"Many very long roads add \"unnecessary\" bends in order to keep drivers awake and alert. Long stretches of straight road tend to put tired drivers to slee... | [] | [] | [
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"https://www.google.co.uk/maps/@53.641355,-1.9517334,358m/data=!3m1!1e3"
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a8revb | Could "active light cancelling" exist? | As of today, we have developed efficient active noise cancelling technology that we can find in popular headphones. Could the same idea apply to light, even if we are talking about EM waves and not mechanical waves? | askscience | https://www.reddit.com/r/askscience/comments/a8revb/could_active_light_cancelling_exist/ | {
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"text": [
"Sounds difficult, natural light is incoherent - meaning that the peaks and troughs of all the waves aren’t aligned (out of phase). It is also not polarised - so those waves if you look at them end-on are misaligned. To ‘canc... | [] | [] | [
[],
[]
] | |
3gqrrk | Was "The First American" Ben Franklin ever seriously considered for U.S. President? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3gqrrk/was_the_first_american_ben_franklin_ever/ | {
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"text": [
"When he came back to the US from France in 1785, he was very much hoping to retire from public duties. Instead, Pennsylvania made him President of the state, ( essentially the governor) and he served three terms, for thre... | [] | [] | [
[],
[]
] | ||
7gw83s | what ant decides when a colony is to be moved? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7gw83s/eli5_what_ant_decides_when_a_colony_is_to_be_moved/ | {
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"No one ant decides to move. Instead, when an ant thinks the colony needs to move, it goes out scouting for a new home. If it finds one it likes, it comes back to the nest, lays down a phermone trail, and brings another ant... | [] | [] | [
[
"https://www.insidescience.org/news/when-ants-get-together-make-decision"
],
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5otupv | why are bulletproof vests not reusable? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5otupv/eli5_why_are_bulletproof_vests_not_reusable/ | {
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"The easiest way I can explain this, is a kevlar vest is like a cube of jello? If you smack the jello and crush it, it will break apart,... | [] | [] | [
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] | ||
oofa5 | eil5: why are sunsets more colorful in winter? | This may just be spitting in the wind, but it seems like sunsets during the winter months are more vibrant and colorful. They have deeper, richer, longer lasting colors. A lot of the time, they stretch all the way across the sky. Why is that? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/oofa5/eil5_why_are_sunsets_more_colorful_in_winter/ | {
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"text": [
"OK, so it all depends on where you are on the earth. The sun's light is directed at an angle from -23 degree to +23 degrees throughout the year (in relation to the equator). This is because of our Earth's tilted axis. The winter solstice is when ... | [] | [] | [
[]
] | |
83i88e | In Medieval Western Europe did certain regions Develop unique sword fighting Styles? Like "this region favors techniques with lots of slashes" or "this region favors techniques with lots of thrusts"? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/83i88e/in_medieval_western_europe_did_certain_regions/ | {
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"follow-up: I know that in The Princess Bride, all of the techniques mentioned in the sword fight between the Man in Black and Inigo Montoya are based on real, genuine medieval masters' techniques; were they really moves-and-countermoves designe... | [] | [] | [
[]
] | ||
1qmgo7 | how can some people stand in the cold in shorts and a t-shirt and be perfectly fine, when another person of equal size and body type, might be freezing and need tons of layers to stay warm? | I'm a 20 year old male, 5'11", 145lbs, lived in Florida all my life. We recently had a cold front come through town, it was high 50s, low 60s, and in the morning I needed to get something out of my car and didn't realize how cold it was so I walked out there in shorts and tank and instantly I was freezing. Later in the... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1qmgo7/eli5_how_can_some_people_stand_in_the_cold_in/ | {
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"Because different people adjust to these things differently. \nI met an exchange student from Poland here in Belgium and he was just rocking some shorts and a t-shirt when all of us were wearing our jackets and all of that. What's cold for us was... | [] | [] | [
[]
] | |
1je60s | why are acid attacks so prevalent in the middle east/asia? | What is it that makes this form of assault so prevelent in the middle east as well as in Asia?
Is it because of the lack of control over acidic chemicals? Is it because many of these chemicals are produced in these places?
Please reddit, explain this like i'm five so I may be enlightened as to why this form of assa... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1je60s/eli5_why_are_acid_attacks_so_prevalent_in_the/ | {
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"text": [
"Follow up: If you can get these chemicals in the US and other Western countries, why are these attacks not as common here as they are in the east?",
"this is because they have no base."
]
} | [] | [] | [
[],
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] | |
6t1nqs | Was Gerald Ford already considered a "lame duck" President when Nixon resigned or did he have the political capital to accomplish anything? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6t1nqs/was_gerald_ford_already_considered_a_lame_duck/ | {
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"text": [
"Not an answer, but a clarification for OP: \"lame duck\" refers to a politician's final months in office, after a successor has already been elected, or when term limits guarantee that they will not be able to run for re-election. Essentially, it... | [] | [] | [
[]
] | ||
jdgm3 | the difference between polar and non-polar compounds | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jdgm3/eli5_the_difference_between_polar_and_nonpolar/ | {
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"text": [
"Think of the shape in terms of sports objects. Something like a baseball, soccer ball, tennis ball would all be non-polar. An American football would be polar. A simplified non-... | [] | [] | [
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27odik | why can't i upload a gif as my profile picture or banner on facebook or twitter? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/27odik/eli5_why_cant_i_upload_a_gif_as_my_profile/ | {
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"text": [
"Because the format is not supported by the parameters set up by Facebook and Twitter. Also, HUGE GIF.",
"Because they decided that they don't want you to. ",
"Could you imagine loading an entire... | [] | [] | [
[],
[],
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] | ||
1tzggd | Has there ever been a succession crisis wherein a monarch or noble died while their spouse was still pregnant with the prospective heir? | Question somewhat inspired by the example of Alexander's son by Roxana. I suppose I'm interested to know, if in other time periods or cultures, there were more sophisticated practices besides war and feuds to resolve such a situation. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1tzggd/has_there_ever_been_a_succession_crisis_wherein_a/ | {
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"[Shapur II](_URL_0_) of the Sasanian Empire was crowned while still *in utero*. The crown was placed on his mothers belly. His older brothers were killed, blinded or imprisoned when his father died. The nobles and Shapur's mother ran the kingdom... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Shapur_II",
"http://en.wikipedia.org/wiki/Ladislaus_Posthumus_of_Bohemia_and_Hungary",
"http://en.wikipedia.org/wiki/Theobald_IV_of_Champagne",
"http://en.wikipedia.org/wiki/War_of_Succession_%28Champagne%29"
]
] | |
58ll79 | António de Oliveira Salazar was a Portugal's reactionary leader, when he came to power in 1932 why didn't he restore the monarchy which had been overthrown 1919? Also what were the relations between Salazar and Franco and the right wing regimes in some former Iberian colonies in Latin America? | Salazar was exceptionally traditional and reactionary, even compared to his neighbor and ally Francisco Franco. In Portugal the monarchy was overthrown in October 1910, just over 20 years before he came to power - since he was such a traditionalist I am very confused as to why he didn't restore the monarchy in Portug... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/58ll79/antónio_de_oliveira_salazar_was_a_portugals/ | {
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"text": [
"So in Salazar's case, traditional and reactionary are contradictory. He was indeed profoundly conservative, but was for the most part far from advocating anything other than \"stability and good order\" (with him in charge, naturally) above anyth... | [] | [] | [
[]
] | |
6cw4ge | Why did Hitler executed Jews with gas, ovens, shots, etc if they could work? Wouldn't be more efficient just make them work until they starve instead of spending resources with mass killings? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6cw4ge/why_did_hitler_executed_jews_with_gas_ovens_shots/ | {
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"text": [
"Hi! As this question pertains to basic, underlying facts of the Holocaust, I hope you can appreciate that it can be a fraught subject to deal with. While we want people to get the answers they are looking for, we also remain very conscious that t... | [] | [] | [
[
"https://books.google.com/books?id=Z7FiPwAACAAJ",
"https://books.google.com/books?id=HFB-dkuZzSwC",
"http://holocaustcontroversies.blogspot.de/2012/10/index-of-published-evidence-on.html",
"https://books.google.com/books?id=bx-dZEV228QC",
"https://books.google.com/books?id=Q-0B9-D5Vz4C",
"... | ||
65jy6i | when venus fly traps eat, how does the animal die? - also what would happen to a finger in a venus fly trap? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/65jy6i/eli5_when_venus_fly_traps_eat_how_does_the_animal/ | {
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"text": [
"The fly's body slowly dissolves in liquids secreted by the plant. Same thing would happen to a finger. Seems like a pretty gruesome way to die. ",
"Basically the Venus Fly Trap (VFT) seals up when something is inside ... | [] | [] | [
[],
[]
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dtzzr0 | how was such a massive structure like the hoover dam constructed so perfectly without modern technology and how were they able to hold the water back during the build? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dtzzr0/eli5_how_was_such_a_massive_structure_like_the/ | {
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"The river was diverted by use of tunnels, there was no water to hold back. Once the dam was complete, the valley filled with water. You can read more on Wikipedia [Hoover Dam](_URL_0_)",
"What are you talking about? The ... | [] | [] | [
[
"https://en.m.wikipedia.org/wiki/Hoover_Dam"
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1zefnx | How different will the night sky be in one galactic year (time it takes for the sun to orbit the Milky Way)? | If the sun is orbiting the galaxy at a different rate than other stars and nebulas than does that mean we will see different stars in the sky? | askscience | http://www.reddit.com/r/askscience/comments/1zefnx/how_different_will_the_night_sky_be_in_one/ | {
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"The galactic year is about 225 to 250 million years (estimates vary). Over that time scale the proper motion of the stars would distort the constellations beyond recognition. [This site](_URL_0_) shows an example of the changes to the Big Dipper ... | [] | [] | [
[
"http://www.fourmilab.ch/yoursky/help/proper.html"
]
] | |
cepqe3 | how does gold end up concentrated in a vein on earth, considering the contents originate from multiple separate supernovae? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cepqe3/eli5_how_does_gold_end_up_concentrated_in_a_vein/ | {
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"So there are a *lot* of factors at play... | [] | [] | [
[],
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"https://en.wikipedia.org/wiki/Planetary\\_differentiation",
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"https://www.mining.com/rn... | |
4g6s7t | why do we sometimes get that "empty" feeling after a show, game, book, etc? | Is there a good reason for why we get "the void" after a series or show ended? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4g6s7t/eli5_why_do_we_sometimes_get_that_empty_feeling/ | {
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"text": [
"Pretty much the same reason you get sad when a friend moves away, or when someone you care about dies. You grew attached to the story, the series, the show. You grew with the characters, watched them ... | [] | [] | [
[],
[],
[]
] | |
91dwv2 | How has the changes in atmospheric carbon dioxide and oxygen affect human evolution since our early ancestors came on the scene? | I'm curious about whether the decrease in carbon dioxide has been an advantage for us in the way that eating meat might have given us more energy to work with, and I'm wondering if an increase in atmospheric co2 might hinder us, evolutionarily, in the future. | askscience | https://www.reddit.com/r/askscience/comments/91dwv2/how_has_the_changes_in_atmospheric_carbon_dioxide/ | {
"a_id": [
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"score": [
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"text": [
"Not at all, directly, if you are talking about hominids and not older things. The O2 level has remained steady for the past few million years, and CO2 has not varied enough to have real physiological effects.\n\nCO2 _has_ varied enough to effect... | [] | [] | [
[]
] | |
ao1n38 | What's the point in keeping smaller particle accelerators around after larger ones have been built? | askscience | https://www.reddit.com/r/askscience/comments/ao1n38/whats_the_point_in_keeping_smaller_particle/ | {
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"text": [
"Particle accelerators have many different uses. There are tens of thousands of them in the world, it would not make any sense to try to use one big one for every application. Also it’s not necessarily ... | [] | [] | [
[],
[],
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] | ||
us08c | does the way we respond as a society influence how
traumatic an event is for a person? | [inspired by this post](_URL_0_) , I'm wondering , does the way we, as a society, react towards certain events influence how traumatic they are for people? for example, in ancient greece, sexual relationships between young boys(ephebes) and adults were socially acceptable, would a boy in those times be less traumatized... | askscience | http://www.reddit.com/r/askscience/comments/us08c/does_the_way_we_respond_as_a_society_influence/ | {
"a_id": [
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"text": [
"Unquestionably it does.\n\nSocial pressures drive how we view/judge ourselves. The need for group attachment is strong, hence the drive to \"fit in\" is strong. Failing in this (actual or perceived) can be highly traumatic because it triggers a f... | [] | [
"http://www.reddit.com/r/videos/comments/urgv3/hide_and_seek_from_a_toddlers_point_of_view/c4xzklc"
] | [
[]
] | |
2zqzpm | how is it that all the hydrogen and helium (the lighter stuff) accumulated in the centre of our solar system, and all the heavier elements ended up circling around it? wouldn't the opposite make more sense? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2zqzpm/eli5_how_is_it_that_all_the_hydrogen_and_helium/ | {
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"Take away the air and everything falls at the same rate. So initially everything would be pulled to the centre of the solar system at the same rate. Since most of the mass of the solar system is hydrogen, it makes sense that most of the mass of ... | [] | [] | [
[]
] | ||
jqxjw | shouldn't eli5 be more about explaining concepts than answering questions? | Maybe it's just me, but I think there's a lot of questions here that really isn't hard to grasp, nor to explain...
I'd rather have questions of the type: "[ELI5] How the Large Hadron Collider works" or "ELI5: Farm Subsidies" than "ELI5 What the heck happened to Digg?" or "ELI5: Why does everyone hate the sound of thei... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jqxjw/shouldnt_eli5_be_more_about_explaining_concepts/ | {
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"Agreed. ELI5 is often treated as \"AskReddit, ... | [] | [] | [
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28mjrw | i remember old games in higher graphics than they actually were. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28mjrw/eli5_i_remember_old_games_in_higher_graphics_than/ | {
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4xe3sc | What are some intuitive applications of eigenvalues/eigenvectors in engineering? | I somewhat understand the concepts, but I have a hard time understanding how they are applied or what they represent in the physical world, so some examples would really help me.
| askscience | https://www.reddit.com/r/askscience/comments/4xe3sc/what_are_some_intuitive_applications_of/ | {
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"- Structural analysis. Eigenvectors tell you the shape of a vibration, and the corresponding eigenvalues tell you the relative strength of the vibration modes.\n\n- Fluid mechanics. Eigenvectors tell you the direction of inf... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Sturm%E2%80%93Liouville_theory"
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9tfj39 | what is an ssh key and sftp and why are they important | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9tfj39/eli5_what_is_an_ssh_key_and_sftp_and_why_are_they/ | {
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"SSH - Secure Shell\n\nSSH is a method of remotely managing computers or electronic equipment such as routers and switches using a command line interface. All data sent using SSH is encrypted ensuring that data cannot be eave... | [] | [] | [
[],
[
"https://youtu.be/3QnD2c4Xovk"
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2zsm4z | How often did prehistoric man eat meat? | Was it daily, like many of us do today? Or was this a rare treat?
Same question for Medieval man. Was there alot of meat on the menu in the 'Dark Ages'? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2zsm4z/how_often_did_prehistoric_man_eat_meat/ | {
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"text": [
"Also consider /r/AskAnthropology.",
"Asking about \"prehistoric man\" is difficult, because this encompasses a huge variety of situations and almost all of human history. However, I'll assume you ... | [] | [] | [
[],
[],
[]
] | |
dzxnky | what actually is a patent and why are companies allowed to sell products without them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dzxnky/eli5_what_actually_is_a_patent_and_why_are/ | {
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"A patent is a legal right for a company to control their invention.\n\nIf you didn't invent it, you'll need permis... | [] | [] | [
[],
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3rgow5 | what does a hospital do when there are too many emergency's at the same time? | You only have so many people, so what happens when there are 10 emergency's and only 8 medical people (so nurses and doctors)? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3rgow5/eli5_what_does_a_hospital_do_when_there_are_too/ | {
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"triage. \n\npeople generally fall into 3 categories\n\n1. Those who are likely to live, regardless of what care they receive;\n2. Those who are likely to die... | [] | [] | [
[],
[],
[
"https://www.stgeorges.nhs.uk/wp-content/uploads/2013/11/Kingston-Hospital-Major-Incident-Plan-version-9-June-2013.pdf"
],
[],
[]
] | |
2i5fdl | if i smack into a hot object, will the burn be worse than if i lightly touched it? | For example, let's say that I accidentally smacked my arm into a very hot object, like the inside of a stove, hard enough to leave a bruise. Would the burn go any deeper into the skin or cover a larger area than it would if I had touched it lightly? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2i5fdl/eli5_if_i_smack_into_a_hot_object_will_the_burn/ | {
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"Burns are due to thermal energy transfer. Generally, this would be a function of the difference in temperature and time.\n\nThe burn would be a little deeper, as some compression would be expected due to the kinetics but I wouldn't expect to be s... | [] | [] | [
[]
] | |
4zg0t3 | if the earth rotates on its axis constantly, how are we able to see the same starts every night? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4zg0t3/eli5_if_the_earth_rotates_on_its_axis_constantly/ | {
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"We don't see the same stars every night. The Earth wobbles on it axis ([axial precession](_URL_0_))\n slow enough that it is perceived that you are seeing the exact same stars in relation to the time of year. As for Earth's ... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Axial_precession"
],
[]
] | ||
tn76y | Rotational inertia | I'm looking for an in depth analyses, my school doesn't have the greatest of text books and I am doing a final project on the aforementioned topic, the project is a wooden disk with two sets of holes drilled in it, 4 along the edge 5 in from center, and 4 2.5 in from center, showing how if you place bolts in the outer ... | askscience | http://www.reddit.com/r/askscience/comments/tn76y/rotational_inertia/ | {
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"The quantity you're interested in is called the [moment of inertia](_URL_0_). It's a function of the mass and the square of the distance from the rotational axis to that mass. There's formulae on that Wikipedia page both for... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Moment_of_inertia"
],
[
"http://ocw.mit.edu/courses/physics/8-01l-physics-i-classical-mechanics-fall-2005/lecture-notes/"
]
] | |
5tk3y4 | saltwater aquariums are so delicate - so how do these animals survive in the wild? | Saltwater aquariums are so beautiful - but most people can't be bothered with the maintenance on them. You have to balance your perimeters *just so,* check them daily as minor fluctuations can harm your fish... And then you could look at the damn thing too hard and everything goes to shit and your $500+ worth of fish a... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5tk3y4/eli5_saltwater_aquariums_are_so_delicate_so_how/ | {
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"There's a lot of ocean. It's hard to actually change the conditions because there's so much of it (pollution diffuses across the entirety of the ocean). \n\nOn the other hand... it also is a demonstrat... | [] | [] | [
[],
[],
[]
] | |
1zvue9 | Is it possible for entropy to reach zero? | I learned that although entropy for system can be negative, that usually means entropy of the universe increases. Is it possible for entropy to decrease so much that there is absolutely no disorder?
Since that kind of order would require for the universe to reach absolute zero (I assume), would all energy have to turn ... | askscience | http://www.reddit.com/r/askscience/comments/1zvue9/is_it_possible_for_entropy_to_reach_zero/ | {
"a_id": [
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"text": [
"The 3rd Law of Thermodynamics says a system cannot be brought to zero entropy in a finite number of finite steps (equivalently, can't be brought to a temperature of absolute zero in a finite number of finite steps). You can read more [here](_URL_... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Third_law_of_thermodynamics"
]
] | |
azzxtj | what makes a beer belly how it is, round and hard? what makes it different from a normal stomach or a soft(fat) stomach? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/azzxtj/eli5_what_makes_a_beer_belly_how_it_is_round_and/ | {
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"score": [
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39661,
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"It is *visceral fat,* the kind that grows *behind* your ab... | [] | [] | [
[],
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"https://www.alfapump.com/wp-content/uploads/2017/07/ascites-illustration.jpg"
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5nwswp | why does toast bread keep all the cheese in while normal bread lets the cheese ooze out? | I was just eating breakfest and pondering about it. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5nwswp/eli5_why_does_toast_bread_keep_all_the_cheese_in/ | {
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"text": [
"What is toast bread? As far as I know there is only bread. Once it's toasted then you have toast. Or are there specific breads that are meant for toasting and I missed the memo. ",
"I understand your question. \n\nIn lot... | [] | [] | [
[],
[]
] | |
11svno | How exactly do underground rivers form? | askscience | http://www.reddit.com/r/askscience/comments/11svno/how_exactly_do_underground_rivers_form/ | {
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"I am guessing this post is based on the recent news about the Amazon so if we use that as a case study: the water in the river isn't held in the river because the river bed is impermeable to water, rather there is water below which extends down t... | [] | [] | [
[]
] | ||
2logkm | Why do you not the feel the gust of wind produced by a fan as one single stream of air? | askscience | http://www.reddit.com/r/askscience/comments/2logkm/why_do_you_not_the_feel_the_gust_of_wind_produced/ | {
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"text": [
"It's probably something like this: You're getting a wave of air from each pass of a blade. There is also a vortex moving air from the front of the blade around the tip toward the back. So there would seem to be a lot of turbulence in the flow,... | [] | [] | [
[
"http://www.youtube.com/watch?v=Z5qy9VRLJZo"
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] | ||
12ydkf | How can spectroscopy show the Sun is made of hydrogen when the Sun is a plasma | How can spectroscopy show the Sun is made of hydrogen when the Sun is a plasma (and is therefore at temperatures high enough to prevent any electrons from falling back into orbit and emitting the characteristic photons)? I understand the Sun's light comes from it's photosphere which has a temperature of about 5777 K bu... | askscience | http://www.reddit.com/r/askscience/comments/12ydkf/how_can_spectroscopy_show_the_sun_is_made_of/ | {
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"text": [
"Hydrogen is barely ionized at all at 5000 K. Only around 10000 K does hydrogen become overwhelmingly ionized. The Sun's surface temperature is about 5777 K, and the outer layers of the atmosphere are even cooler, so there is... | [] | [] | [
[],
[]
] | |
42eh3i | why is a dish cooked at home considered "healthier" than the same dish cooked at a restaurant? | So why is a dish made at home considered healthier than the same thing I get at a restaurant? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/42eh3i/eli5_why_is_a_dish_cooked_at_home_considered/ | {
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"You choose the ingredients and the way it is prepared. Restaurant d... | [] | [] | [
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6y33j6 | I just looked at the sun with my eclipse glasses, and there are two black dots on the sun. What are those? | If you have your eclipse glasses, go look. Are they solar flares visible to the naked eye? Or are they planets?
| askscience | https://www.reddit.com/r/askscience/comments/6y33j6/i_just_looked_at_the_sun_with_my_eclipse_glasses/ | {
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"https://i.imgur.com/ut7Uziw.jpg",
"https://sdo.gsfc.nasa.gov/assets/img/latest/latest_512_0171.jpg"
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"http://spaceweather.com/",
"http://spaceweather.com/images2017/04sep... | |
3y3zgw | Why are synthetic cannabinoids so much more toxic than cannabinoids found in cannabis? | askscience | https://www.reddit.com/r/askscience/comments/3y3zgw/why_are_synthetic_cannabinoids_so_much_more_toxic/ | {
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"text": [
"That's a pretty broad statement. There are hundreds of compounds that bind to cannabinoid receptors. Many synthetic cannabinoids have a similar structure to THC and CBD etc, and metabolize similarly, so they have much the same side effects and s... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Template:Cannabinoids",
"https://en.wikipedia.org/wiki/JWH-018",
"http://countyourculture.com/2010/11/01/synthetic-cannabinoids-the-alkylated-naphthoylindoles/"
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] | ||
1cg9j8 | If I use an AC electric heater in a small enclosed area, the air would feel dryer. Where did the water go? | If I use an AC electric heater in a small enclosed area like a small room, the air would feel dryer. Where did the humidity in the air go? Because the room is enclosed I don't imagine that the water can escape that way.
Does the water actually turn into something else? Or does it just feel dryer while it's not actuall... | askscience | http://www.reddit.com/r/askscience/comments/1cg9j8/if_i_use_an_ac_electric_heater_in_a_small/ | {
"a_id": [
"c9g7ru1"
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6
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"text": [
"If you consider an enclosed volume, like a perfectly insulated room, then the water isn't going anywhere. It stays in the air. However, your heater obviously changes the temperature of said air. Here is where an important distinction comes into p... | [] | [] | [
[]
] | |
136r6y | Can you create matter out of pure light? | Considering matter is heavily condensed energy, can you create for example a neutron, or an electron with only pure light, or technically just radioactive waves? I'd assume you need an rnormous amount of them, but can you combine that energy so it transforms from a wave into a particle? | askscience | http://www.reddit.com/r/askscience/comments/136r6y/can_you_create_matter_out_of_pure_light/ | {
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"text": [
"_URL_0_\nPhotons can in principle collide with each other to produce particle-antiparticle pairs, although I think that this more commonly occurs when a photon impacts a massive particle. But yes, you are correct that on the... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Pair_production"
],
[]
] | |
384kix | If a neutron star lost mass could it reach a point when the gravity wasn't enough to keep the star in its neutron degenerate state? | Let's say protons decay and through proton decay a neutron star slowly lost mass. After some time the gravitational pull would be too low for the neutron star to hold everything together.
I imagine this would happen in an extraordinary explosion (lots of potential energy to be released in a neutron star). Any estimat... | askscience | http://www.reddit.com/r/askscience/comments/384kix/if_a_neutron_star_lost_mass_could_it_reach_a/ | {
"a_id": [
"crsn3y8",
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3,
25
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"text": [
"Assuming a proton decays and energy is lost due to photons/neutrinos/some other ultra-light particle, the amount of mass lost is tiny compared to the neutron star. There is no reason for all of the protons (or neutrons) to ... | [] | [] | [
[],
[]
] | |
s9n42 | Could I go far enough underground to survive a wayward gamma ray burst? | If a nearby star went nova and splashed Earth with a wash of gamma rays, could I find a mineshaft and survive? I realize the likelihood of such an event occurring is low and all that jazz. | askscience | http://www.reddit.com/r/askscience/comments/s9n42/could_i_go_far_enough_underground_to_survive_a/ | {
"a_id": [
"c4c8mw4"
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"text": [
"No. This is because the gamma ray burst wouldn't ever directly affect you even if you were standing outside at the time.\n\nThe problem is that they would cause a chemical reaction in the upper atmosphere changing molecular nitrogen into nitrogen... | [] | [] | [
[]
] | |
1ywv03 | My goal for this year is to really learn the ins and outs of American history. What are some comprehensive resources I should check out? | By "comprehensive" I mean a text that's both thorough and expansive, covering all ~250 years of American history. I've got no clue where to begin, and was hoping some historians here could point me in the right direction. Thanks! | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ywv03/my_goal_for_this_year_is_to_really_learn_the_ins/ | {
"a_id": [
"cfogthl"
],
"score": [
8
],
"text": [
"The Oxford Series of American history will cover many of the periods in question. "
]
} | [] | [] | [
[]
] | |
1yv9pv | How were dwarves of noble birth treated? | Instances of dwarves being born to nobility had to have occurred. Were they simply hidden away (which is what I assume was done)? Or is there any instance of them/one being treated as one would treat anyone else of noble birth? I apologize if this is a repost question (I figure someone has asked something similar due t... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1yv9pv/how_were_dwarves_of_noble_birth_treated/ | {
"a_id": [
"cfo7le1",
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"score": [
34,
21
],
"text": [
"There is not much records of dwarfs in the nobility they were rumours that Matilda of Flanders was a dwarf at 4 foot 2 but I believe those are inaccurate, she was short though at around 5 foot. She ended up married to Will... | [] | [] | [
[],
[
"http://www.fordham.edu/halsall/basis/stgall-charlemagne.asp",
"http://en.wikipedia.org/wiki/Pippin_the_Hunchback",
"http://books.google.com/books?id=Ym5x3mq2p7EC&lpg=PA150&ots=8ZeumWdWP5&pg=PA46#v=onepage&q&f=false"
]
] | |
3jfea8 | Is it possible to accelerate to a set speed instantaniously? | Hello science people. I was wondering if it is possible (I know its not with current technology but maybe one day) to accelerate to per say 50 km/h without starting at one, two or thee so on and so forth. I was just kind of curious! :)
- Cheers | askscience | https://www.reddit.com/r/askscience/comments/3jfea8/is_it_possible_to_accelerate_to_a_set_speed/ | {
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"text": [
"Instantaneous acceleration requires infinite power. So no.",
"From what I know that is impossible. No matter how fast you get to that set speed, there will always be an amount ... | [] | [] | [
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Bell_test_experiments"
]
] | |
4kmcp6 | If a disc was spun at 1 RPM, how large would this disc need to be in order for the edge of it to reach the speed of light? | Such a weird question, but I've been thinking about this for much longer than I'd like to admit. | askscience | https://www.reddit.com/r/askscience/comments/4kmcp6/if_a_disc_was_spun_at_1_rpm_how_large_would_this/ | {
"a_id": [
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"text": [
"The total circumference of the disc is 2 * pi * radius. At 1 RPM, a point on the edge travels 1/60th of the circumference per second.\n\nSo the required radius can be found by solving: ( 2 * pi * r ) / 60 = c\n\nOr: r = 60 c / 2 pi or about 2.86... | [] | [] | [
[]
] | |
5xpw33 | why do some people develop tics that go away, but others' progress into tourette's syndrome? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5xpw33/eli5_why_do_some_people_develop_tics_that_go_away/ | {
"a_id": [
"dejzsdr"
],
"score": [
4
],
"text": [
"Tics do not \"progress into\" Tourette's Syndrome. Rather, tics are a symptom that can have various causes. One possible cause is Tourette's Syndrome."
]
} | [] | [] | [
[]
] | ||
6u3vaw | Why is the Chinese front during WW2 rarely ever acknowledged or talked about? | At least 14 million people died on the Chinese front during the Second Sino-Japanese War/World War 2, with some extreme estimates placing the number of casualites over twice as high. This means that the Chinese front had the second largest amount of deaths during the war, if not the most deaths, depending on what the c... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6u3vaw/why_is_the_chinese_front_during_ww2_rarely_ever/ | {
"a_id": [
"dlq2si4"
],
"score": [
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],
"text": [
"I'll base my answer on the essay *The Sino-Japanese War in History* by Hans van de Ven, one of the leading Western historians on the Sino-Japanese conflict, and expand on the citations with a bit of a refutal of the point of view he describes. ... | [] | [] | [
[]
] | |
35aj9m | why is first (1st), second (2nd), third (3rd), but everything else is xth? |
* *first*
* *second*
* *third*
* four**th**
* fif**th**
* six**th**
* seven**th**
* eigh**th**
* nin**th**
* ten**th** | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/35aj9m/eli5_why_is_first_1st_second_2nd_third_3rd_but/ | {
"a_id": [
"cr2k9ow"
],
"score": [
9
],
"text": [
"The numbers you are asking about are called ordinal numbers and we don’t know for sure why 1st, 2nd, and 3rd are different. Generally, the more often a word is used the more likely it is to be irregular, so that may explain some of it (think of t... | [] | [] | [
[]
] | |
vqpfy | the recent obamacare decision ruled by the supreme court, without bias. | Mandate upheld, mandate struck down. Either way I don't know what it means for the American people. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/vqpfy/eli5_the_recent_obamacare_decision_ruled_by_the/ | {
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"c571jv8",
"c5740xi",
"c57460y",
"c574l6y",
"c574x4g",
"c579487",
"c... | [] | [] | [
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[],
[],
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],
[],
[]
] | |
24plir | Where can I find more information about the effects of the Japanese occupation(1910-1945) of Korea on Korean culture? | I have recently read about some of the "Nissen ittai," or "Japan and Korea as One," policies, however I'm not finding a lot of details on them.
The examples I currently know include how newspapers and magazines published in Korean were closed and the Korean Language Society was disbanded, some Koreans were forced t... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/24plir/where_can_i_find_more_information_about_the/ | {
"a_id": [
"ch9ypo0",
"chciath"
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"score": [
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"text": [
"Not a historian, and since I'm Korean I don't know *too much* about good English sources. But Bruce Cummings' *Korea's Place in the Sun: A Modern History* is probably a good place to start. ",
"I think a broad but releva... | [] | [] | [
[],
[]
] | |
a62rki | why is it that sometimes a car move forward the moment you release your brakes while on "drive" but sometimes it doesn't even when it's stopped at the same place? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a62rki/eli5_why_is_it_that_sometimes_a_car_move_forward/ | {
"a_id": [
"ebr8743",
"ebsm0qa"
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"score": [
2,
2
],
"text": [
"It be like that sometimes. Best 5yo answer possible.\n\nThe adult version has to do with idle rpms, incline of hill, temperature of transmission, type of transmission, weight of cargo/passengers, etc.",
"This may not be ... | [] | [] | [
[],
[]
] | |
1e4swv | What would happen if a hydrogen bomb was detonated at the bottom of the Kola Superdeep Borehole? | The borehole has a depth of 40,230 feet, which is 12,289 meters. The temperatures at that depth prevented the Soviet scientists from continuing on the dig.
What would the consequences be of a detonation this far down in the Earth's crust?
[Wikipedia article](_URL_0_) for more information on the borehole. | askscience | http://www.reddit.com/r/askscience/comments/1e4swv/what_would_happen_if_a_hydrogen_bomb_was/ | {
"a_id": [
"c9wtrgx",
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"score": [
5,
41
],
"text": [
"This might interest you: _URL_0_\n\nThe deepest underground nuclear blast was about three kilometers deep, but I can't find any information about it besides the fact that it happened.\n\nTo answer your question, there would... | [] | [
"http://en.wikipedia.org/wiki/Kola_Superdeep_Borehole"
] | [
[
"http://en.wikipedia.org/wiki/Underground_nuclear_testing"
],
[]
] | |
9ya4ie | Will Mount Everest always be the tallest mountain? | askscience | https://www.reddit.com/r/askscience/comments/9ya4ie/will_mount_everest_always_be_the_tallest_mountain/ | {
"a_id": [
"ea0jbko",
"ea101sd"
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"score": [
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4
],
"text": [
"No, eventually enough physical weathering will take place that it has worn down and plate tectonics will create newer mountain ranges that are higher given enough time. We are talking about long long periods of time here o... | [] | [] | [
[],
[]
] | ||
8eqayr | why do some youtube videos show a small image of that point in the video when you hover over the progress bar and some don't? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8eqayr/eli5_why_do_some_youtube_videos_show_a_small/ | {
"a_id": [
"dxx9b96"
],
"score": [
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],
"text": [
"Typically it's newer videos that haven't had time to finish being cached (prepared for quick reference) on Google's servers. After the video has finished processing completely, one of the benefits is being able to see that image."
]
} | [] | [] | [
[]
] | ||
4du8de | Is DNA stable in a vacuum? | askscience | https://www.reddit.com/r/askscience/comments/4du8de/is_dna_stable_in_a_vacuum/ | {
"a_id": [
"d1uigwn"
],
"score": [
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"text": [
"Under dehydrating conditions, DNA will turn into one of the three stable DNA forms, in this case, [A-DNA](_URL_0_). A-DNA is similar to the common form, B-DNA, as it is right-handed, but it is a little bit more compacted (scrunched) than B-DNA.... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Nucleic_acid_double_helix#Helix_geometries",
"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2836546/"
]
] | ||
2xtlap | Which modern-day country is the real cultural successor to the historical country of the Grand Duchy of Lithuania? | I've heard people arguing that Belarus is closer to how Lithuania used to be in times of the Grand Duchy and as a part of the Commonwealth. In one of his videos, Norman Davies also said that the official language of the Duchy was Ruthenian. What would then be the place of the predecessor to the Lithuanian language and ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2xtlap/which_modernday_country_is_the_real_cultural/ | {
"a_id": [
"cp4gmkm"
],
"score": [
2
],
"text": [
"The somewhat glib answer to \"real\" cultural succession is a mixture of no one or it depends on how one interprets culture. Although the Commonwealth had a rich cultural legacy, fitting such early modern idioms into modern-day conceptions of nat... | [] | [] | [
[]
] | |
1nsm4o | What are some works of art by political figures? | I was thinking about how interesting it was that John Milton was both an important political figure and wrote *Paradise Lost*. What some other examples of important political figures who also created works of art? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1nsm4o/what_are_some_works_of_art_by_political_figures/ | {
"a_id": [
"cclopcg",
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"score": [
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3
],
"text": [
"The early modern period provides a fair few examples for this (with Milton's *Paradise Lost* certainly a good one - though I think it's worth remembering that it's as much a commentary on contemporary society as it is art.) ... | [] | [] | [
[],
[]
] | |
27csa6 | why do people torrent movies and tv shows instead of streaming? streaming is instant and doesn't leave any incriminating files on your computer. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/27csa6/eli5_why_do_people_torrent_movies_and_tv_shows/ | {
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"chzjwvn",
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"score": [
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3,
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2
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"text": [
"Torrents can be streamed as well. But what I believe you're asking is why people download torrents rather than stream. The main reason is that torrents are much higher quality, and... | [] | [] | [
[],
[],
[],
[]
] | ||
49dao8 | if the constitution is supposed to be upheld at all times in government then why do politicians constantly get accused of doing things that are "unconstitutional" but are never penalized for it? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/49dao8/eli5_if_the_constitution_is_supposed_to_be_upheld/ | {
"a_id": [
"d0qukdf",
"d0qulbc"
],
"score": [
6,
4
],
"text": [
"Because its rarely clear cut whether or not the things they are doing is unconstitutional. Its a matter of how you interpret it which is the supreme courts job. Someone would have to charge the politician with a crime and th... | [] | [] | [
[],
[]
] | ||
1z7sfo | Why did Italian power and influence ebb after the Renaissance | This is my one blind sight in European history. The success of the Renaissance originated from the Italian city-states that had grown very large and rich. I have ideas of why Italy could be eclipsed by the rest of Western Europe, but I want to hear the current narratives. Did the warring between the cities result in an... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1z7sfo/why_did_italian_power_and_influence_ebb_after_the/ | {
"a_id": [
"cfthqc2"
],
"score": [
4
],
"text": [
"First, the Italian City States were very different from one another. At \ntimes Florence was doing great and at others Venice was. I bring this \nup to illustrate that there was no \"continuity\" of greatness. The \nRenaissance in the Italian pen... | [] | [] | [
[]
] | |
o7y3n | How do pigeons work? In a biomechanics sense. | When I see pigeons walking around, they seem to always bob their head in rhythm with how they're walking. Is that the only way they can walk, or do they have some other reason for doing this?
When they get startled and take flight in a hurry, they seem to always make a strange fwefwefwe noise, is it their wings produc... | askscience | http://www.reddit.com/r/askscience/comments/o7y3n/how_do_pigeons_work_in_a_biomechanics_sense/ | {
"a_id": [
"c3f3nwu",
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"score": [
4,
5,
2
],
"text": [
"The bobbing is to keep to image of the world still on their eyes. When you move your head the vestibulo-ocular reflex moves your eyes automatically, so that the image of the world stays stable on your r... | [] | [] | [
[],
[
"http://jeb.biologists.org/content/74/1/187.full.pdf",
"http://en.wikipedia.org/wiki/Parallax",
"http://en.wikipedia.org/wiki/Binocular_vision#Field_of_view_and_eye_movements"
],
[
"http://news.bbc.co.uk/2/hi/8232570.stm"
]
] | |
2jfqgq | Microgravity is referred to as "free fall". Does that mean all the objects in the universe are falling toward something? | askscience | http://www.reddit.com/r/askscience/comments/2jfqgq/microgravity_is_referred_to_as_free_fall_does/ | {
"a_id": [
"clbmetq"
],
"score": [
6
],
"text": [
"Microgravity is a misnomer for objects that are in orbit around the Earth. Gravity on the space station is approximately 90% as strong as it is on Earth. The reason the astronauts appear weightless is because they are in free-fall, just like wh... | [] | [] | [
[]
] | ||
9dxscz | why do american houses have such thin walls? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9dxscz/eli5_why_do_american_houses_have_such_thin_walls/ | {
"a_id": [
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"e5koayw",
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"score": [
2,
3,
3,
2,
5,
2
],
"text": [
"😂❤️ besides the fact that those are movie sets which are constructed to be punched thru. Basically just drywall. You would have a hell ... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | ||
bbrgcl | how are global fast-food chains such as mcdonalds and kfc able to maintain the same taste and quality around the world? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bbrgcl/eli5_how_are_global_fastfood_chains_such_as/ | {
"a_id": [
"ekkv5cs",
"eklcc68"
],
"score": [
8,
2
],
"text": [
"McDonald’s tastes different depending on where you are. When I was in Germany the Big Mac was a bit different from the ones in the U.K.",
"There's an intricate dance that goes on behind the scenes at the big chain restau... | [] | [] | [
[],
[]
] | |
1korzn | the apocalypse according to the bible | I'm an atheist who is very interested in learning more about armageddon or the apocalypse as stated in the bible. Events, important characters and any predicted outcomes? Literally all I have been told is that Christ comes back, the four horsemen are released and thats it! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1korzn/eli5_the_apocalypse_according_to_the_bible/ | {
"a_id": [
"cbr2xzn",
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"score": [
2,
3,
2,
3
],
"text": [
"God gave the apostle Paul a vision of the end of the world, hence why the book is called \"Revelations\". There's a lot of symbolism analyzed by a lot of people that understand it ... | [] | [] | [
[],
[
"http://www.biblegateway.com/passage/?search=Revelation+1&version=MSG"
],
[
"http://en.wikipedia.org/wiki/Christian_eschatology"
],
[]
] | |
1xb7gh | Is there any proof of Nazi's suffering mental breakdown's | SO is reading a fiction book involving Nazi's and its mentioned that during one of the many street killings of Jews, one soldier collapses and another refuses to kill anymore..another mentions a soldier getting up in the middle of the night and walking out their station and killing themselves..
Is there any proof thin... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1xb7gh/is_there_any_proof_of_nazis_suffering_mental/ | {
"a_id": [
"cfaj3jk"
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"text": [
"I don't know about breakdowns, but the psychological toll it exacted was noted. Himmler gave a speech to a group of SS men on Poznan, where he discussed the difficulty of performing mass killing:\n\n > I also want to mention a very difficult sub... | [] | [] | [
[]
] | |
6noe1p | why is open-mouth breathing often associated to lower intelligence? is there any biological or behavioral link between the two? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6noe1p/eli5_why_is_openmouth_breathing_often_associated/ | {
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238,
29,
10,
2
],
"text": [
"It is a common stereotype, but the only serious connections I can locate are [here](_URL_0_) where users point out (1) it means you're uncultured and (2)... | [] | [] | [
[
"https://www.reddit.com/r/OutOfTheLoop/comments/2lrqbr/why_are_mouth_breathers_considered_less/"
],
[],
[],
[],
[]
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9dp2pd | how does tinting a car's windows help keep it cooler inside during the summer, since dark objects absorb more of the sun's heat? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9dp2pd/eli5_how_does_tinting_a_cars_windows_help_keep_it/ | {
"a_id": [
"e5j26zi",
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"score": [
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2,
27
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"text": [
"The tint film is actually multimple diffrent sheet sandwhiched together. In general youll have a dark colored film to block/absorb visble light and youll also have a reflective film that helps reflect ... | [] | [] | [
[],
[],
[]
] | ||
o8gli | why is evolution considered a theory and not a scientific law? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/o8gli/why_is_evolution_considered_a_theory_and_not_a/ | {
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12,
2,
2,
3
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"text": [
"Google says: \n > Evolution, and most of Biology, cannot be expressed in a concise mathematical equation, so it is referred to as a theory. A scientific law... | [] | [] | [
[
"http://www.evolutionfaq.com/faq/why-isnt-evolution-considered-law",
"Evolutionfaq.com"
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[],
[],
[
"http://www.google.com.au/search?sourceid=chrome&ie=UTF-8&q=define%3A+the#hl=en&q=the&tbs=dfn:1&tbo=u&sa=X&ei=6sUKT6rwNc2zrAfF9qH0Dw&ved=0CC8QkQ4&bav=on.2,or... | ||
vwydk | What consumer products can I buy today that take advantage of the physical properties of graphene? | askscience | http://www.reddit.com/r/askscience/comments/vwydk/what_consumer_products_can_i_buy_today_that_take/ | {
"a_id": [
"c58ddb4"
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"score": [
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"text": [
"I am not aware of any such devices currently, though my field of expertise is only tangentially related to graphene.\n\nThis is likely because graphene is a *very*, *very* new material. As recently as 2008, the only reasonable way to get any was ... | [] | [] | [
[]
] | ||
vcxca | Light cannot escape the gravitational pull of a black hole. So where does the light go? | I mean, why is the black hole not lit up when the light gets "absorbed" | askscience | http://www.reddit.com/r/askscience/comments/vcxca/light_cannot_escape_the_gravitational_pull_of_a/ | {
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"c53dm4o",
"c53fz7k",
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"c53ki0e"
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"score": [
10,
22,
14,
5
],
"text": [
"Lets take a look at what a black hole is and how it bends spacetime, looks at [this image](_URL_0_). The light begins to follow that path and, since it is a singularity the ligh... | [] | [] | [
[
"http://imgur.com/2DhT2"
],
[],
[
"http://www.youtube.com/watch?v=eI9CvipHl_c"
],
[]
] | |
9u8ixm | Why are some JFK assassination files still classified? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9u8ixm/why_are_some_jfk_assassination_files_still/ | {
"a_id": [
"e92e92l"
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"text": [
"This submission has been removed because it violates our ['20-Year Rule'](_URL_1_). To discourage off-topic discussions of current events, questions, answers and all other comments must be confined to events that happened 20 years ago or more. Fo... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/45wqkl/rules_roundtable_5_the_current_eventsmodern/",
"http://www.reddit.com/r/AskHistorians/wiki/rules#wiki_no_current_events"
]
] | ||
1fs03b | What is the earliest academic paper that can be cited? | askscience | http://www.reddit.com/r/askscience/comments/1fs03b/what_is_the_earliest_academic_paper_that_can_be/ | {
"a_id": [
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6,
3
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"text": [
"I suppose that I could reference Euclid's [*Elements*](_URL_0_), which is 2300 years old.",
"How would you define 'paper'? The style and format of scientific papers has changed substantially over time, and so have the st... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Euclid%27s_Elements"
],
[]
] | ||
2jgxoi | In 1945, When President Truman told Stalin of a "new bomb of unusual destructive force", why did Stalin react as if he was uninterested and not show any special interest in it? And how did he react when it was first used on Japan? | I was looking it up and of all the accounts, apparently Stalin didn't seem to be that interested as he never asked any questions or seemed intrigued. He just said it was good and he hoped it would be used on Japan. Why did he act this way and how did he react when he realized the actual power of it? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2jgxoi/in_1945_when_president_truman_told_stalin_of_a/ | {
"a_id": [
"clbunph",
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"score": [
35,
3
],
"text": [
"He already knew about the bomb by the time Truman told him about it. As for his reaction to us bombing Japan, he was upset and actually locked himself away out of being depressed that the Soviet Union didn't join the war ag... | [] | [] | [
[],
[
"http://www.dannen.com/decision/potsdam.html"
]
] | |
7qavya | Are there any other less heard of societies like Carthage? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7qavya/are_there_any_other_less_heard_of_societies_like/ | {
"a_id": [
"dsnrh8l"
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"score": [
2
],
"text": [
"The Indus Valley Civilisation is a very interesting and hardly known early society that is likely responsible for the \"brahmin\" caste (highest caste) in Indian society. "
]
} | [] | [] | [
[]
] | ||
nacwd | social security and what it implicates | What does it mean, what does it do, when was it invented, what was the original use, and what is it being used for right now? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/nacwd/eli5_social_security_and_what_it_implicates/ | {
"a_id": [
"c37jero",
"c37jero"
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"score": [
9,
9
],
"text": [
"Wow, this is a big topic.\n \nIn the US, Social Security was a program started by President Franklin Roosevelt in the midst of the Great Depression. The original idea was that the country should provide for those who could n... | [] | [] | [
[],
[]
] | |
f0a2wz | what the scientific explanation as to why you are not supposed to put kitchen knives in a dishwasher? how is this any different than hand washing them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f0a2wz/eli5_what_the_scientific_explanation_as_to_why/ | {
"a_id": [
"fgsdlsu",
"fgsg7sm"
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"score": [
7,
3
],
"text": [
"The main reason is that your knife should only be wet for the minute or so it takes to clean it, then it should be dried. Having water sitting on there will make it rust and damage whatever finish it might have. Dishwashing ... | [] | [] | [
[],
[]
] | ||
4q4x5y | "Basically, the Nazi party gained power because the Socialists and Communists attacked people on the streets" Can someone explain how accurate this claim from a forum post is? | [Link](_URL_0_)
> They painted themselves as Socialists in the beginning. After Hitler's takeover of the party, the National Socialists incorporated much of the ideals of fascism, which included a fair deal of Corporatism and Mercantilism. They also incorporated many socialist plans such as social welfare, etc.
> H... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4q4x5y/basically_the_nazi_party_gained_power_because_the/ | {
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"text": [
"There are some misconceptions here, for sure.\n\nFirst this writer conflates \"Communism\" and \"Socialism.\" These two movements were represented by the radical KPD and the moderate-centrist SPD res... | [] | [
"http://forum.nationstates.net/viewtopic.php?p=29178176&sid=de658a27f8100a9a240fd740d4b1635c#p29178176"
] | [
[],
[],
[]
] | |
64jto6 | how will a self-driving car react when facing a choice: killing the driver or a pedestrian? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/64jto6/eli5how_will_a_selfdriving_car_react_when_facing/ | {
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"text": [
"There wouldn't be that kind of decision baked into it, deciding which lives to kill. It would follow the standard programming for collision avoidance. \n\nI... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
2b0wqe | what happens if you're sent to jail for a crime you didn't commit and evidence that you're innocent pops up years after you get out of jail? | I just finished watching Need for Speed and the thought occurred to me. If someone is sent to jail for 10 years for murder and after they get out evidence pops up that proves they aren't the murderer what happens? Does the government do anything to apologize for wasting your life or do they just ignore it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2b0wqe/eli5what_happens_if_youre_sent_to_jail_for_a/ | {
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"score": [
7,
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"text": [
"this situation has happened plenty of times in real life. they get reparations based on ... | [] | [] | [
[
"http://www.cnn.com/interactive/2012/03/us/table.wrongful.convictions/"
],
[],
[],
[],
[],
[
"http://abcnews.go.com/US/alan-northrop-rape-bill-compensate-wrongly-convicted/story?id=12792640"
],
[
"http://www.reddit.com/r/IAmA/comments/27ehyu/i_spent_18_years_in_prison_for_a_murder_i_di... | |
b4b1hy | how do gpg keys work and how are fingerprints verified? | I do have my own public and private keys but I don't understand how they're used to verify identities or what signing someone else's key will do and what is the point for having fingerprints.
And how do you verify a fingerprint someone you know online gives you because for all intents and purposes it may not be actual... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b4b1hy/eli5_how_do_gpg_keys_work_and_how_are/ | {
"a_id": [
"ej5inuy"
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"score": [
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"text": [
"Without getting too mathematical, your private and public key are generated in such a way that:\n\n\\- When you use your private key to encrype a message, only your public key can decrypt it.\n\n\\- When someone uses your public key to encrype a ... | [] | [] | [
[]
] | |
5e6yni | why has the usa's money supply (m0) increased so much since 2008? | Here is a historical chart of our M0 assets: _URL_0_
This seems like extreme inflation, am I wrong?
What exactly is going on here? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5e6yni/eli5_why_has_the_usas_money_supply_m0_increased/ | {
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"text": [
"M0 is the measure of monetary reserves, which the Fed creates when it makes asset purchases. The increase is mostly due to it's large scale asset purchases, ie. quantitative easing. \n \nGrowth of M2, or broad money, has been much more subdued ... | [] | [
"http://www.zerohedge.com/sites/default/files/images/user196978/imageroot/2016/05/19/monetarybase_fredgraphjuly13.png"
] | [
[
"https://fred.stlouisfed.org/series/M2V",
"https://fred.stlouisfed.org/series/M2",
"https://fred.stlouisfed.org/series/FPCPITOTLZGUSA"
]
] | |
3532nv | Can a train pull more cars than it can push? | I commute taking Amtrak. On my way to work the engine is pulling the cars, and on my return home it's going in reverse and pushing the cars (same number of cars). This made me wonder what the limits for each method of locomotion are. | askscience | http://www.reddit.com/r/askscience/comments/3532nv/can_a_train_pull_more_cars_than_it_can_push/ | {
"a_id": [
"cr0xwel"
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"score": [
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"text": [
"The main reasons for most locomotives pulling their cars (particularly heavy, long freight trains) is forward visibility and braking.\n\nA freight train braking with the engine at the front will tend to compress together as each car pushes into t... | [] | [] | [
[]
] | |
1rp418 | How much of vision is filled in by the brain? | For example, in my blind spot. If I close one eye, the blind spot is there, but is filled in by my brain to what is roughly in the background, and I don't notice it.
Another example: I have a little brown dog that looks like a brown pillow when he's curled up. When I saw an actual brown pillow on my chair, for a spli... | askscience | http://www.reddit.com/r/askscience/comments/1rp418/how_much_of_vision_is_filled_in_by_the_brain/ | {
"a_id": [
"cdpqiqf"
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"score": [
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"text": [
"this is a complicated question. closest to your meaning, I think, is the issue of filling-in of surface color - the [Cornsweet illusion] (_URL_2_) is usually taken as one piece of evidence that the visual system uses boundary properties to infer ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Color_constancy",
"http://en.wikipedia.org/wiki/Watercolor_illusion",
"http://en.wikipedia.org/wiki/Cornsweet_illusion"
]
] | |
3qwvx8 | why is this specific sound effect of children laughing and playing used over and over and over again in movies/tv shows? | _URL_0_
I feel like every time there are kids laughing and playing, this sound is used! | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3qwvx8/eli5_why_is_this_specific_sound_effect_of/ | {
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"score": [
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"text": [
"Also the goddamn rusty door sound effect, it's everywhere. tv series, even modern movies apparently use the same sample cd set.\n\nthere is also a weird unrealistic \"air sucking in before explosion\"... | [] | [
"https://www.youtube.com/watch?v=yedSDFtSmJw"
] | [
[
"https://www.youtube.com/watch?v=afnR1C7HTh8"
],
[],
[]
] | |
13fyoj | how people get caught not having a tv license?(uk) | How do they know you don't have a license? Has anyone ever been caught and fined? Surely unless they come into your house and check they can't know if you're watching TV or not? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/13fyoj/eli5_how_people_get_caught_not_having_a_tv/ | {
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"score": [
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"text": [
"They knock on your door and you feel really guilty and admit you should pay.",
"wtf is a TV license...-edit-\n... | [] | [] | [
[],
[],
[],
[],
[],
[],
[]
] |
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