q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
value | subreddit stringclasses 3
values | url stringlengths 4 132 | answers dict | title_urls list | selftext_urls list | answers_urls list |
|---|---|---|---|---|---|---|---|---|---|
501p7n | Did free African Americans who colonized Liberia practice slavery there? I can't find any hard sources for this... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/501p7n/did_free_african_americans_who_colonized_liberia/ | {
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"They did practice slavery.\n\nThere was a definite hierarchy of families in Liberia, with the first 300 families or so forming the topmost level of society, which more or less socially emulated the antebellum South \"complete with top hats and mo... | [] | [] | [
[]
] | ||
2dzqi1 | Were there any leisure games that Roman legions would play during off-time? | Or was there no off-time? Was a roman Legionnaire expected to be building, fighting, or resting during his entire tenure?
And if they did have times for game and/or sport, what would they have played? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2dzqi1/were_there_any_leisure_games_that_roman_legions/ | {
"a_id": [
"cjvb54l"
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"score": [
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"text": [
"Dice gambling was an extremely popular Roman pastime. Numerous murals of it being played have been found in Pompey, such as this one: _URL_1_\n\nAnd contemprary dice have been found in archaeological sites across the empire: _URL_0_\n\n\nDice is ... | [] | [] | [
[
"http://www.bibleandscience.com/store/catalog/images/Roman%20dice2.jpg",
"http://www.aerobiologicalengineering.com/wxk116/Roman/BoardGames/rbt2.jpg"
]
] | |
108k1y | If you were able to heat up a small portion of the atmosphere to a temperature above the flash point for Nitrogen, would it catch the entire atmosphere on fire? | I assume one of, if not the hottest temperature on Earth would have been a nuclear reaction of some sort. If it didn't catch the atmosphere on fire, can anything else?
I've looked up the flash point to Nitrogen but have found no information on it. I figure it's never been reached if it exists? | askscience | http://www.reddit.com/r/askscience/comments/108k1y/if_you_were_able_to_heat_up_a_small_portion_of/ | {
"a_id": [
"c6bas4a",
"c6basn8",
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"score": [
5,
3,
6
],
"text": [
"Oxidation of nitrogen is an endothermic reaction. Nitrogen has no \"flash point,\" it cannot burn.",
"During the Manhattan Project there was a point where they were concerned this would happen, when... | [] | [] | [
[],
[],
[]
] | |
1u2q88 | If you put all the popcorn kernels that were leftover from a popped bag of popcorn, into the microwave, would they pop into popcorn, or burn? | I'm pretty drunk while I write this question eating popcorn, BUT I MUST KNOW | askscience | http://www.reddit.com/r/askscience/comments/1u2q88/if_you_put_all_the_popcorn_kernels_that_were/ | {
"a_id": [
"cee35tv"
],
"score": [
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"text": [
"they will pop. sometimes i empty the bag of successfully popped kernels and then put the bag back in for another 30 seconds and wait till i hear most of the remaining kernels pops. i know. im a badass cuz it says not too on the instructions..."
... | [] | [] | [
[]
] | |
8dvsr6 | - why do the bubble in guinness look like they’re going down? | Do they go down, or is it just an illusion? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8dvsr6/eli5_why_do_the_bubble_in_guinness_look_like/ | {
"a_id": [
"dxqcyin",
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"score": [
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"text": [
"Actually they do go down. The bubbles in the center of the glass move up, creating a flow of the beer sort of like a hurricane. It’s shaped like a donut and the bubbles on the outside are pulled down and then into the center... | [] | [] | [
[],
[]
] | |
2t4lib | i'm watching a live broadcast of the 'state of the union' speech by president obama. as an englishman, i'm not sure who he is addressing and what the purpose of the speech is? | Is it some sort of outline plan for the future or a summing up of what's happened over a past period of time? Is the audience a mix of different parties or is it Obama's own supporters? How do the US public generally view the substance and purpose of the speech?
Thanks for any light you can shed on this!
Edit: thanks ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2t4lib/eli5_im_watching_a_live_broadcast_of_the_state_of/ | {
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"text": [
"He is speaking to the combined houses of Senate and Congress.\n\nHe is basically giving them an assessment of the current \"state\" of the \"union\" (United ... | [] | [] | [
[],
[],
[],
[],
[]
] | |
1xnre8 | How big or small a role did the Soviet heavy tanks such as the IS-2 or KV-1 play in the Eastern Front? How did they compare to the German Tiger-1 and Tiger-2? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1xnre8/how_big_or_small_a_role_did_the_soviet_heavy/ | {
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"cfd7n36",
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"text": [
"You will find that the Russians had quite good tanks. The T-34 was an excellent tank due to its wide tracks enabling it to be used effectively even in the sn... | [] | [] | [
[
"http://www.amazon.co.uk/Second-World-War-Antony-Beevor/dp/0753828243"
],
[],
[],
[],
[
"http://books.google.ca/books?id=GlVoAnV5u-0C&pg=PA158&dq=KV-1+best+tank&redir_esc=y#v=onepage&q=T-34&f=false",
"http://books.google.pl/books?id=5EA5LrwmP2UC&pg=PA10&dq=fastest... | ||
6veti2 | why cannot americans born in us territories vote for president? | I'm Canadian and any notable differences or parallels between American and Canadian territories would be cool to know as well. Cheers. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6veti2/eli5_why_cannot_americans_born_in_us_territories/ | {
"a_id": [
"dlzom6y",
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"score": [
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"text": [
"A Canadian territory is like a US state. US territories and protectorates are like buddies that tag along with us. Essentially vassal states that the US military watches over in exchange for docking r... | [] | [] | [
[],
[],
[]
] | |
249cbx | what is athletes foot and why does it hurt? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/249cbx/eli5_what_is_athletes_foot_and_why_does_it_hurt/ | {
"a_id": [
"ch4vmyb"
],
"score": [
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],
"text": [
"Tinea (pronounced: tin-ee-uh) is the medical name for a group of related fungal skin infections that affect the skin, nails, or scalp, including athlete's foot, jock itch, and ringworm (despite its name, ringworm is not a worm).\nThese infections... | [] | [] | [
[]
] | ||
5vujd1 | how does my laptop charger convert ac electricity into dc power? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5vujd1/eli5_how_does_my_laptop_charger_convert_ac/ | {
"a_id": [
"de50dsf"
],
"score": [
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"text": [
"There are two main parts to most chargers of this type. \n \nThe first one is a transformer. A transformer is basically a donut shaped piece of iron (or a squared off donut) with at least two sets of \"windings\". Insulated wires coming in fr... | [] | [] | [
[
"https://www.elprocus.com/wp-content/uploads/2013/10/Bridge-Rectifier.png"
]
] | ||
2396r5 | Why is the Normal Distribution bell-shaped rather than triangular? | In other words, why do the odds of a wayward measurement or shot at a target not decrease linearly with distance from the bullseye? | askscience | http://www.reddit.com/r/askscience/comments/2396r5/why_is_the_normal_distribution_bellshaped_rather/ | {
"a_id": [
"cguuyw7",
"cgv0slg",
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"score": [
6,
3,
8
],
"text": [
"Perhaps it would help to think of the Normal and Triangular distributions as related. Imagine a scale with perfect accuracy but limited resolution (say 1 gram). If an item weighs 25 grams on the scale, ... | [] | [] | [
[
"http://aidanlyon.com/sites/default/files/Lyon-normal_distributions.pdf"
],
[
"http://en.wikipedia.org/wiki/Convolution"
],
[]
] | |
20g305 | What made the USSR able to turn the tables on Germany during WWII? | The way I understand it, the soviets were getting their shit pushed in throughout most of the western portion of their landmass for the first year or so of the invasion. Was it just the winter proving too formidable for an underprepared German army, some changes made within the Red army, or other factors?
Thanks. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/20g305/what_made_the_ussr_able_to_turn_the_tables_on/ | {
"a_id": [
"cg2x2br",
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"text": [
"There are a number of factors that lead to the Soviet Union \"turning the tables\" \n\nThe German offensive began to loose steam as it neared Moscow. A combination of harsh winter conditions, stout Russian defense, and infig... | [] | [] | [
[],
[
"http://www.jstor.org/discover/10.2307/1061444?uid=3739560&uid=2129&uid=2&uid=70&uid=4&uid=3739256&sid=21103754718693",
"http://militera.lib.ru/prose/russian/stadnyuk3/index.html",
"http://ru.wikipedia.org/wiki/%D0%A1%D1%82%D0%B0%D0%B4%D0%BD%D1%8E%D0%BA,_%D0%98%D0%B2%D0%B... | |
5bplxt | When did the idea of an "Aryan" white race take hold in racist groups and societies? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5bplxt/when_did_the_idea_of_an_aryan_white_race_take/ | {
"a_id": [
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"d9r7xqm"
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"score": [
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4
],
"text": [
"Racial theories that divided the European \"race\" into several \"sub-races\" became very prominent in anthropological communities in the early 20th century, esp. in the interwar years. Nazi Aryanism is itself an offshoot of... | [] | [] | [
[],
[]
] | |
5svq4x | Why does wood turn "grey" after being outside long enough? | I have seen that newer wood turns into a grey color if it stands outside long enough. I want to know why this happens, and if this happens to other materials. | askscience | https://www.reddit.com/r/askscience/comments/5svq4x/why_does_wood_turn_grey_after_being_outside_long/ | {
"a_id": [
"ddiix6y"
],
"score": [
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],
"text": [
"I would think it has to do with UV radiation exposition over time. Wood is basically dead cells, fibers with old protein storage that used to make them rough when alive. I think the degradation of whatever's left inside on the cells by UV might c... | [] | [] | [
[]
] | |
14gz3f | Why did Claudius invade Britain? | From what I've read it seemed like it was more trouble than it was worth to send a large army into an unknown island and subdue warring tribes. Why did he bother? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/14gz3f/why_did_claudius_invade_britain/ | {
"a_id": [
"c7d4pnl",
"c7d68qw"
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"score": [
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5
],
"text": [
"The British islands had been known as a rich source of tin for centuries before Claudius invaded. Since the early days of western Greek colonialism, tin which originated in Britain was traded in continental Europe where it ... | [] | [] | [
[],
[]
] | |
1wedc1 | Pre-Columbian American info? | I have been searching for a decent source of information for pre-Columbian history and especially the plains tribes. Every search I have tried triggers an avalanche of 19th century stuff and not a whole lot. Its for personal knowledge only so if its a little anecdotal or has some citation issues that's no big deal. Tha... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1wedc1/precolumbian_american_info/ | {
"a_id": [
"cf1cz38"
],
"score": [
2
],
"text": [
"I recommend Archaeology on the Great Plains. Edited by W. Raymond Wood. Maps by E. Stanley Wood. Lawrence: University Press of Kansas, 1998. This is a a little bit dated but it is a solid, comprehensive culture history of the plains broken down i... | [] | [] | [
[
"http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1443&context=greatplainsresearch"
]
] | |
pmcp9 | why everyone thinks freud is hot shit? | I recently did his study of Little Hans in my AS psychology class and that is the poorest investigation I have ever heard of. The amount of confounding variables is ridiculous - firstly, the boy is interviewed by his own father (biased), secondly Freud had already come up with his theory before he investigated little h... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/pmcp9/eli5_why_everyone_thinks_freud_is_hot_shit/ | {
"a_id": [
"c3qidu1",
"c3qimdh",
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"score": [
9,
16,
2
],
"text": [
"The only people who think Freud is \"hot shit\" are the people who have not studied in work in any depth. Most people who have know most of his works do not hold any water in the psychology field today... | [] | [] | [
[],
[],
[]
] | |
bdt62l | why do things that scare humans usually makes humans want to know more? | Why do humans want to know more about things they are scared of. For example: ghost-related or supernatural stuff. Or as simple as reading a really scary/creepy story or looking at creepy photos. Why are we more curious once we hear/know/see about it even though we are scared of them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bdt62l/eli5_why_do_things_that_scare_humans_usually/ | {
"a_id": [
"el0iab0",
"el0ie8q",
"el0ifel",
"el0o4dx",
"el1grd8"
],
"score": [
9,
8,
6,
19,
4
],
"text": [
"Because we don't like being scared of things beyond our ability to understand and control, so we seek reassurance that the scary thing is, in fact, normal an... | [] | [] | [
[],
[],
[],
[],
[]
] | |
25tgo3 | Can you recommend good books about history and rules of heraldry? Particularily Middle Ages Europe. | Hello! There many different flags, coats of arms, emblems and one can wonder whether they are completely random or follow some rules. Can you recommend good sources about them? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/25tgo3/can_you_recommend_good_books_about_history_and/ | {
"a_id": [
"chkvrjh",
"chkxmxm"
],
"score": [
2,
5
],
"text": [
"Perhaps /r/heraldry could be of assistance.",
"It's an incredibly complex subject with its own technical jargon and obscure rules. From an English historiographical perspective the study of heraldry remained a largely an... | [] | [] | [
[],
[
"www.college-of-arms.gov.uk/about-us"
]
] | |
14z8kj | What other animals besides humans have the ability to dream? And what is the evolutionary benefit by having the ability to dream? Is it necessary for our survival? | askscience | http://www.reddit.com/r/askscience/comments/14z8kj/what_other_animals_besides_humans_have_the/ | {
"a_id": [
"c7hwlu6"
],
"score": [
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"text": [
"Most animals who sleep engage in REM sleep. So by extentsion we assume that they are also dreaming. There are notable exceptions to this, lizards and snakes usually don't have REM sleep and I believe echidnas don't present with REM sleep either, ... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Rapid_eye_movement_sleep",
"http://www.cerebromente.org.br/n02/mente/animais_i.htm",
"https://en.wikipedia.org/wiki/Michel_Jouvet"
]
] | ||
1nyfcr | How are chemical weapons safely disposed of? | askscience | http://www.reddit.com/r/askscience/comments/1nyfcr/how_are_chemical_weapons_safely_disposed_of/ | {
"a_id": [
"ccnampf"
],
"score": [
3
],
"text": [
"There are 2 methods usually used\n1. Incineration, where the chemical is basically safely put in a 2000 degree Fahrenheit fire (obviously controlled). \n2. Neutralization is what the US uses for bulk dangerous chemicals. It is actually pretty sim... | [] | [] | [
[]
] | ||
20nddm | Why are giant sequoias only seen in one part of the united states? | are there other sequoia trees in other parts of the world? are they just called something else? | askscience | http://www.reddit.com/r/askscience/comments/20nddm/why_are_giant_sequoias_only_seen_in_one_part_of/ | {
"a_id": [
"cg56lsq",
"cg5hw40"
],
"score": [
3,
2
],
"text": [
"There are three extant (living) species of sequoia: coastal redwoods, giant sequoias, and the dawn redwood. The dawn redwood lives only in China and is, oddly enough, deciduous. It's been a long time since I've looked at any... | [] | [] | [
[],
[
"http://www.redwoodworld.co.uk/"
]
] | |
3shgc5 | late night advertisements and tellyshooing. how do they make enough money? | I'm talking about late night runnings of THE NEW ABBS'OMATIC for cut abs in 10 weeks | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3shgc5/eli5_late_night_advertisements_and_tellyshooing/ | {
"a_id": [
"cwx8umd"
],
"score": [
2
],
"text": [
"Advertising is all about the number of viewers on a channel. \nAfter about 11pm the number of viewers drops off significantly. \n\nA super cheaply made infomercial can contract with a network to show their 1 hr infomercial with a few \"commercial... | [] | [] | [
[]
] | |
5j0npi | is it possible for an atom to have over 118 protons and be stable? | If not, why? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5j0npi/eli5_is_it_possible_for_an_atom_to_have_over_118/ | {
"a_id": [
"dbce15u",
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"score": [
2,
2,
3
],
"text": [
"There becomes too much repulsion between the positive charges of the protons for the nucleus to properly hold itself together. So no it is not likely as the majority of atoms with atomic number of 86 an... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Island_of_stability"
]
] | |
193w5k | why republicans exclude millitary spending from budget cuts | When budget cuts are being discussed, they always show concern for millitary budgets. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/193w5k/eli5_why_republicans_exclude_millitary_spending/ | {
"a_id": [
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"c8kk03d",
"c8klutp"
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"score": [
10,
2,
4,
3
],
"text": [
"The Republican party believes in having a strong military no matter the cost.\n\nIt's much more complicated than that, but that is the *like I am 5* answer.",
"It's about prio... | [] | [] | [
[],
[],
[],
[]
] | |
1sgi66 | What has happened to the many thousands of items of clothing from the last few centuries? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1sgi66/what_has_happened_to_the_many_thousands_of_items/ | {
"a_id": [
"cdxe09y"
],
"score": [
5
],
"text": [
"Old clothes made, for instance , from cotton, linen and other natural fibres were once an important resource for making high-quality paper. (Google: Rag and Bone Man for a description of the collectors, at least in the UK). This does, I suppose, ... | [] | [] | [
[]
] | ||
45x8qh | Will I faint instantly if my heart stop beating? | Or will I stay conscious until all the oxygen in my blood is depleted? | askscience | https://www.reddit.com/r/askscience/comments/45x8qh/will_i_faint_instantly_if_my_heart_stop_beating/ | {
"a_id": [
"d01m6iq",
"d0244y1",
"d02hcow"
],
"score": [
3,
5,
2
],
"text": [
"Instantly might be a bit strong, but very quickly, assuming your heart relaxes. Low blood pressure causes you to pass out, and that is what will happen if your heart stops beating.",
"If your heart ... | [] | [] | [
[],
[],
[
"http://www.webmd.com/heart-disease/news/20101005/chest-compression-only-cpr-saves-more-lives"
]
] | |
kv6z1 | We have stars orbiting massive black holes, planets orbiting stars, moons orbiting planets. Are there objects orbiting moons? | It seems arbitrary that it would stop at moons, does it not? | askscience | http://www.reddit.com/r/askscience/comments/kv6z1/we_have_stars_orbiting_massive_black_holes/ | {
"a_id": [
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"c2nj74y",
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"score": [
2,
2,
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"text": [
"No examples are known (although some moons exist at the Lagrange points of other moons). For example, Calypso is at the Lagrange point of Tethys and Saturn.",
" > Are there ob... | [] | [] | [
[],
[
"http://science.nasa.gov/science-news/science-at-nasa/2008/20feb_orbitingthemoon/"
],
[],
[
"http://science.nasa.gov/science-news/science-at-nasa/2008/20feb_orbitingthemoon/"
]
] | |
2x2ys3 | On the Implications of Imaginary Time: How can time (generally) be visualized if we look at it before the big bang? | Hello!
I was exploring the concept of imaginary time after I read about it in a transcript of an interview of Stephen Hawking. I found a reddit post explaining it as an idea, but I do have some questions.
/u/shavera posted [this](_URL_0_) comment explaining the concept (intuitively, surprisingly), and from it we quot... | askscience | http://www.reddit.com/r/askscience/comments/2x2ys3/on_the_implications_of_imaginary_time_how_can/ | {
"a_id": [
"cowpp56"
],
"score": [
3
],
"text": [
"Part of this answer does have to do with a philosophy of science that is, I think, fairly reasonably guided by our present scientific understanding. \n\n(nb. only using classical physics to start, we'll get into quantum stuff in a bit)\n\nWhat we... | [] | [
"http://www.reddit.com/r/askscience/comments/29mwfe/what_is_imaginary_time/cimmucb"
] | [
[]
] | |
x3e6y | I am a college freshmen and I want to be a history major. I do not know if I want to teach or maybe work in a museum. What are some suggestions and career choices that are related? Also, any class suggestions? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/x3e6y/i_am_a_college_freshmen_and_i_want_to_be_a/ | {
"a_id": [
"c5itelu",
"c5jqlxg",
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"score": [
4,
3,
3
],
"text": [
"Check this morning's thread [here](_URL_0_), and all the links in it to previous discussions.",
"Some of the best advice I was ever given by a teacher in High School was to take a Russian history cl... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/x1dav/so_raskhistorians_need_some_guidance_here_about/"
],
[],
[]
] | ||
5mf7us | how did science prove sleep paralysis? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5mf7us/eli5_how_did_science_prove_sleep_paralysis/ | {
"a_id": [
"dc337pl"
],
"score": [
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"text": [
"By detecting the release of two specific chemicals (GABA and Glycine) and observing their interaction with the body. \n\nEdit: Grammar"
]
} | [] | [] | [
[]
] | ||
ca7vvs | Why do doctors prescribe antibiotics for viral infections (eg colds)? | [deleted] | askscience | https://www.reddit.com/r/askscience/comments/ca7vvs/why_do_doctors_prescribe_antibiotics_for_viral/ | {
"a_id": [
"et74yd7",
"et7cau4",
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"et90eoo",
"et96lt1"
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"score": [
21,
2,
2,
7,
7,
2
],
"text": [
"The answer is that they shouldn’t unless they know that there is also bacterial infection present. The overprescription of antibiotics ... | [] | [] | [
[],
[],
[],
[],
[],
[]
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2ff7d9 | if two mirrors facing each other reflect infinitely, at what point do i stop seeing my reflection repeat itself? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2ff7d9/eli5_if_two_mirrors_facing_each_other_reflect/ | {
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"Glass isn't 100% see through and no mirror is 100% reflective. With each reflection less light is reflected back so in the end the image will appear black.",
"When it is too small to see.",
"If... | [] | [] | [
[],
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6tlatg | What are the most plausible theories for the beast of Gévaudan retained by modern historians ? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6tlatg/what_are_the_most_plausible_theories_for_the/ | {
"a_id": [
"dllngbr"
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"text": [
"*It's my first real explanation in this sub, I hope I did something correct. If not please advise me.*\n\n\nI can provide some information, but unfortunately most of my sources will be in French, for obvious reason.\n\nFirst of all, I'll just pu... | [] | [] | [
[
"https://en.wikipedia.org/wiki/G%C3%A9vaudan",
"http://www.labetedugevaudan.com/pdf/chrono/chronodoc.pdf",
"https://www.francebleu.fr/infos/insolite/une-reconstitution-de-la-legendaire-bete-du-gevaudan-1460473831",
"http://www.betedugevaudan.com/en/index_en.html",
"http://gallica.bnf.fr/ark:/1... | ||
583ksh | In theory how much more energy can we get from fusion than from fission? | For example if we take 1 gram of U-235 and calculate maximum theoretic energy we can get from fission of that 1 gram and then take 1 gram of hydrogen isotopes and calculate maximum theoretic energy we get from its fusion. | askscience | https://www.reddit.com/r/askscience/comments/583ksh/in_theory_how_much_more_energy_can_we_get_from/ | {
"a_id": [
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"text": [
"Both fusion and fission are fairly comparable in terms of the energy density of their respective fuels this because they involve the same nuclear forces. The energy density in units of kWh / kg (energy per unit mass) for eac... | [] | [] | [
[],
[]
] | |
463f5p | Why can we see the colours of lasers? | Why can we see lasers when they go through dense gases (and not with a naked eye)? Is it possible to change the colour of a laser by changing the gas you are using to see it? | askscience | https://www.reddit.com/r/askscience/comments/463f5p/why_can_we_see_the_colours_of_lasers/ | {
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"d02i4yv",
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"You certainly can see lasers with the naked eye! It's just very dangerous to look at them directly, because they can damage your retina irreparably.\n\nYou need to think about the light coming out of a... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Mie_scattering"
],
[]
] | |
2fssom | why is it that people in ancient times seemed to be so much more violent and not squeamish about seeing gory things compared with today? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2fssom/eli5_why_is_it_that_people_in_ancient_times/ | {
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"Most simply, because they were.\n\nDeath and gore were much more a part of daily life in times past then it is today.\n\nSlaughtering livestock was something most people grew up wi... | [] | [] | [
[],
[],
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aup6tl | why is the jurisdiction of the 12 circuit courts so uneven? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aup6tl/eli5_why_is_the_jurisdiction_of_the_12_circuit/ | {
"a_id": [
"eh9n74a"
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"text": [
"All of the federal courts of appeal were set up based on geography and population at the time, but there has been a lot of population shift since they were established. In the 1980's, the 5th circuit had experienced a huge growth in population an... | [] | [] | [
[]
] | ||
d0ybep | why does water form hydrogen bonds with other water molecules and not covalent bonds? why doesn’t water form hydrogen bonds in a single molecule? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d0ybep/eli5_why_does_water_form_hydrogen_bonds_with/ | {
"a_id": [
"ezfdqob"
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"score": [
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"text": [
"A covalent bond is the result of two atoms sharing electrons to fill each other's valance shell.(hence the term co-valent) It's a bit like how velcro or a jigsaw puzzle fits together. It's a strong bond, not easily broken, but given enough energ... | [] | [] | [
[]
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m6uc5 | how facebook knows to suggest my music teacher from 2 years ago with whom i have no mutual friends | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/m6uc5/eli5_how_facebook_knows_to_suggest_my_music/ | {
"a_id": [
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2,
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"Its possible if you've sent that teacher an email from the same account as the one you've co... | [] | [] | [
[],
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77z84s | why is austria referred to as an empire in the german language? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/77z84s/eli5_why_is_austria_referred_to_as_an_empire_in/ | {
"a_id": [
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"text": [
"The word rijk in Dutch has multiple translations in English, the word rijk as used in the names for countries should translate to realm and not to empire. So Frankrijk translates to Realm of the Franks and Oostenrijk is The ... | [] | [] | [
[],
[]
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1wndb1 | FAQ Friday - How do you define "species"? Why can some species still hybridize? | This week on **FAQ Friday** we're here to answer your questions about species definitions!
Have you ever wondered why two species are still considered separate, or one species hasn't been split into two?
Darwin himself spent a great deal of time [wondering](_URL_1_) what a species is:
> No one definition (of spe... | askscience | http://www.reddit.com/r/askscience/comments/1wndb1/faq_friday_how_do_you_define_species_why_can_some/ | {
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"One point to make is that... | [] | [
"http://www.reddit.com/r/askscience/wiki/biology/hybrid_species",
"http://www.ucl.ac.uk/taxome/jim/Mim/darwin_on_spp.html",
"http://blogs.plos.org/paleo/2013/04/01/how-species-are-like-pornography/",
"http://scienceblogs.com/evolvingthoughts/2006/10/01/a-list-of-26-species-concepts/"
] | [
[],
[],
[],
[],
[
"http://www.blackwellpublishing.com/ridley/a-z/Recognition_species_concept.asp"
],
[],
[],
[],
[],
[],
[]
] | |
157l2r | if you travel at the speed of light and turn on a flashlight, will the light of the flashlight go twice as fact as the speed of light? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/157l2r/if_you_travel_at_the_speed_of_light_and_turn_on_a/ | {
"a_id": [
"c7jyz4o"
],
"score": [
2
],
"text": [
"a flash light cannot travel at the speed of light. \n\nall measurements of the speed of light will always agree, no matter who measures, no matter how fast they are traveling."
]
} | [] | [] | [
[]
] | ||
15hq28 | tumblr | My friend was bugging me for months to get a tumblr and i finally did, th only troubleis i dont understand whats happening. What should i do with my blog? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/15hq28/eli5_tumblr/ | {
"a_id": [
"c7mjw3g",
"c7mk8ak"
],
"score": [
3,
3
],
"text": [
"Follow other blogs that post thins you are interested in. You can find blogs by typing your interests into the tag search bar\nfor example.\nTumblr is mainly fandom related, so if you're in a fandom, then search for blogs ba... | [] | [] | [
[],
[]
] | |
3jgpdj | why does it sometimes take a very long time for bad news (like a loved one dying) to sink in? why isn't it always instant? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3jgpdj/eli5_why_does_it_sometimes_take_a_very_long_time/ | {
"a_id": [
"cup29s5"
],
"score": [
3
],
"text": [
"The very first step on the stages of loss and grief is Denial and Isolation.\n\nLearning someone is dying is very hurtful. It is a very natural reaction to deny the hurtful news to spare yourself grief, and to isolate yourself from the news, or ... | [] | [] | [
[]
] | ||
42suie | Did any minor titles of nobility exist for colonial holdings in the United States prior to the revolution? | Were there long term plans to create/expand this? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/42suie/did_any_minor_titles_of_nobility_exist_for/ | {
"a_id": [
"czd3owz"
],
"score": [
85
],
"text": [
"The answer is, \"sort of\" and it varied from colony to colony. There were land-holdings which were, like today, hereditary, and in some places, these holdings entitled the owners to some privileges, but strictly speaking, they were not seen as ... | [] | [] | [
[
"https://books.google.com/books?id=wwMQAQAAMAAJ&pg=PA138",
"https://en.wikipedia.org/wiki/First_Families_of_Virginia",
"https://books.google.com/books?id=7So_AQAAMAAJ&pg=PA108",
"https://en.wikipedia.org/wiki/Richard_Lee_I",
"https://en.wikipedia.org/wiki/Lords_Proprietor#Carolina",
... | |
aq13n0 | how does intel optane store data that is frequently used to speed loading times up? | I've been looking into Optane a little bit more in depth and this is confusing the hell out of me. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aq13n0/eli5_how_does_intel_optane_store_data_that_is/ | {
"a_id": [
"egcntfn"
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"score": [
3
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"text": [
"the optane memory is used for caching. so things that you frequently use will be stored into this cache and be faster since it's optane. what makes optane faster is it's specific type of memory that is much faster than hdd/ssd's and reaching ra... | [] | [] | [
[]
] | |
2d72rt | Why do you barely feel a breeze on the back side of a fan? | When you place you hand near the "intake" or back side, you barley feel the breeze going in. Clearly, the same amount of air must be moving in to and out of the fan but you don't feel it. Why not?
Thanks! | askscience | http://www.reddit.com/r/askscience/comments/2d72rt/why_do_you_barely_feel_a_breeze_on_the_back_side/ | {
"a_id": [
"cjms05t"
],
"score": [
6
],
"text": [
"Actually, that is not correct for a house fan. There is a bit of a 'suction' effect - the fan moves some air, but the moving air brings even more air with it. Notice how you can also feel a slight breeze BESIDE a fan, not just behind it?\n\nThe [... | [] | [] | [
[
"http://www.dysoncanada.ca/en-CA/FansandHeaters/Cooling-Fans.aspx"
]
] | |
3dk7ea | why do athletes spank each other? | Edit: I see alot have fallen onto the camaraderie explanation. Unfortunately, I feel unsatisfied. Why not just pats on the back? Why not aggressively shake and rub another's head?
I played multiple sports but I never found the need to slap anyone's ass or felt that my morale or my teams went down as a result of a la... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3dk7ea/eli5_why_do_athletes_spank_each_other/ | {
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"ct67nfe",
"ct67psy",
"ct67qyy",
"ct67zb1",
"c... | [] | [] | [
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],
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k1q7g | the difference of the supreme leader and president in iran | Just explain the difference. What does each one do? Who has more influence? Etc. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/k1q7g/eli5_the_difference_of_the_supreme_leader_and/ | {
"a_id": [
"c2guu41",
"c2guu41"
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"score": [
2,
2
],
"text": [
"The political situation in Iran is actually pretty complicated at the moment. Technically, the surpreme leader is gods representative, he has the final say in just about everything. The first surpreme leaders had alot of pow... | [] | [] | [
[],
[]
] | |
puxen | Why are the psychological prime colors (red, blue, yellow) different from the mixing primary colors(magenta, cyan, yellow)? | Cobalt blue looks pure, niether greenish, nor purpleish, but the real primary color, cyan, looks like its just some random mix of green and blue. Cadmium red looks pure red, but the real primary color magenta is violetish color. If I mix pthalo blue and scarlet lake, I don't get purple. I get a near black. Is it trai... | askscience | http://www.reddit.com/r/askscience/comments/puxen/why_are_the_psychological_prime_colors_red_blue/ | {
"a_id": [
"c3sgfdo",
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"score": [
4,
382,
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"text": [
"there's a difference between light based colo... | [] | [] | [
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Color_vision",
"http://upload.wikimedia.org/wikipedia/commons/e/e8/BirdVisualPigmentSensitivity.svg",
"http://en.wikipedia.org/wiki/File:Cone-response.svg",
"http://en.wikipedia.org/wiki/Distinguishing_blue_from_green_in_language"
],
[],
[],
... | |
16rk3f | Russia currently have a military base in Syria. Did Russia (or the U.S.S.R.) ever have any other external military bases like this (during and after the Cold War)? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/16rk3f/russia_currently_have_a_military_base_in_syria/ | {
"a_id": [
"c7yrht4",
"c7yt1hy",
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"score": [
11,
3,
3
],
"text": [
"[Here's a list](_URL_2_) of current Russian bases. [More detail here if you want it.](_URL_0_)\n\nThere were a number of overseas Soviet installations during the Cold War, not counting deployment in th... | [] | [] | [
[
"http://www.militaryphotos.net/forums/archive/index.php/t-112648.html",
"http://books.google.com/books?id=TAiXzjZV5AYC&pg=PA74&dq=soviet+bases+africa&hl=en&sa=X&ei=iGX4UKG5F8aA2wWyuoGYDQ&ved=0CFsQ6AEwBw#v=onepage&q=soviet%20bases%20africa&f=false",
"http://en.wikipedia.... | ||
jf3aa | what are mob mentality and group think? can someone explain them and the differences li5? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jf3aa/what_are_mob_mentality_and_group_think_can/ | {
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"text": [
"Hmmm, I'll try my best.\n\nImagine some of the worse things you've thought about doing. Being intensely angry at someone, looting a store, setting someplace on fire. Admit it, at... | [] | [] | [
[],
[],
[],
[]
] | ||
1ju3fl | why do things turn to stone over millions of years and is it really stone? | I tried searching for it, but it's hard to find. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1ju3fl/eli5_why_do_things_turn_to_stone_over_millions_of/ | {
"a_id": [
"cbiavo0"
],
"score": [
2
],
"text": [
"Check out [petrified wood](_URL_0_).\n\nQuick explanation: organic material is buried which slows down decomposition. Over time water filled with minerals flows through the material and the minerals get deposited on the organic material. After ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Petrified_wood"
]
] | |
3bbs6a | 200 years ago in Japan, how much did accent and language very depending on class? Would it be easy to tell if someone was a peasant, a samurai or a daimyo based on how they spoke? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3bbs6a/200_years_ago_in_japan_how_much_did_accent_and/ | {
"a_id": [
"cskqkbi",
"cskz4e5"
],
"score": [
5,
5
],
"text": [
"Might want to x-post to /r/linguistics.",
"Absolutely. Keigo (polite language) is still very much a thing in modern Japan and from keigo alone you can tell who is 'above' and who is 'below' in a relationship. \n\nEven if... | [] | [] | [
[],
[]
] | ||
5d22u1 | c - linked lists | I'm new to C and I'm still getting my mind around linked lists.
I'm trying to write a code to reverse a linked list and then it hit me. If in a liked list you have to point to the next value of the list, why does when printing it, it gets printed backwards?
What I mean is, this is my code:
typedef struct rotlist... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5d22u1/eli5_c_linked_lists/ | {
"a_id": [
"da158wu",
"da160lt"
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"score": [
6,
5
],
"text": [
"Ok. Take a piece of paper out and imagine that as 'memory' in the system (Heap or stack, doesn't matter). Create a single Dot somewhere on the page and write the word \"my program start\" above it. This represents the first ... | [] | [] | [
[],
[]
] | |
7kmf7g | Could the end results of round-robin tournaments be reliably predicted based on a smaller amount of randomized matches? | I'm trying to figure out the optimal way to rank things. Normally, I would prefer to use random samples of 5/5 ratings, with 1 is the most "below average", 3 being "average" and 5 being most "above average" because that seems easy, simple and repeatable but some things seem too specific or time-consuming to reasonably ... | askscience | https://www.reddit.com/r/askscience/comments/7kmf7g/could_the_end_results_of_roundrobin_tournaments/ | {
"a_id": [
"drh1ch0"
],
"score": [
3
],
"text": [
"Yes, you can do sparse pairwise comparisons and still get decent ratings. This has been done for decades in chess, for example, with the Elo system. Glicko and Glicko-2 are highly regarded generalizations of Elo. Most online games today involve s... | [] | [] | [
[
"https://www.wikiwand.com/en/Elo_rating_system",
"https://www.wikiwand.com/en/Glicko_rating_system"
]
] | |
22hfny | why does dog poop turn white after its been sitting outside for an extended period of time? | And why does it get fuzzy sometimes? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/22hfny/eli5_why_does_dog_poop_turn_white_after_its_been/ | {
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"score": [
23,
11,
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3
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"text": [
"It's calcified due to excess calcium, probably from eating bones. The rest decomposes and that's left behind.\n\nThe fuzziness is just mould.",
"Sarah Silverman once sang abo... | [] | [] | [
[],
[],
[],
[]
] | |
78tknf | In the making of calendars thousands of years ago, how would people nail down that the year was 365 days long? Analemmas, maybe from the shadows of a sort of gnomon at noon? | askscience | https://www.reddit.com/r/askscience/comments/78tknf/in_the_making_of_calendars_thousands_of_years_ago/ | {
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"dowospu",
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"score": [
8,
3
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"text": [
" > Analemmas, maybe from the shadows of a sort of gnomon at noon?\n\nYes, or observing the stars. It is easy to figure out that the year is about 365 days long, and with observations over decades you can also get the simple... | [] | [] | [
[],
[]
] | ||
2bul30 | How come the loss of Varus's three legions was a disaster and Cannae and Carrhae were just bumps in the road? | It seems that the loss of Varus and his legions meant Germany was lost forever but the Romans had shrugged off much worse before. Why was this so different? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2bul30/how_come_the_loss_of_varuss_three_legions_was_a/ | {
"a_id": [
"cj92md9"
],
"score": [
8
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"text": [
"I don't agree that Cannae and Carrhae were simply \"bumps in the road\". What made the loss of Varus' legions so [potentially] disastrous was that those 3 legions were the defenders between the Germanians and the civilians in the Roman empire. Th... | [] | [] | [
[]
] | |
4skxqo | Can lighting strike you underwater? | When diving, what would the effect of a lighting strike be? For practical purposes let's assume we're wearing a rubber wetsuit and are 8 feet under. | askscience | https://www.reddit.com/r/askscience/comments/4skxqo/can_lighting_strike_you_underwater/ | {
"a_id": [
"d5bffvg"
],
"score": [
3
],
"text": [
"It cannot directly strike you underwater. But you could still be electrocuted. When lightning strikes a resistive material, like sea water or even dirt, the current spreads out in all directions. It sets up what is called a current or voltage gra... | [] | [] | [
[]
] | |
3cxhgk | what is a "manic pixie dream girl" and why is twitter so angry about them? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3cxhgk/eli5_what_is_a_manic_pixie_dream_girl_and_why_is/ | {
"a_id": [
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"cszus1q",
"cszve6c",
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"score": [
6,
5,
10,
8,
2
],
"text": [
"Think of Jersey Girl, or Garden State. The girl is cute but sort of... standard, somehow. Not gorgeous, usually brunette, not hugely busty, but sexy-fun. ... | [] | [] | [
[],
[],
[
"http://tvtropes.org/pmwiki/pmwiki.php/Main/ManicPixieDreamGirl"
],
[
"http://i.imgur.com/MjClIdK.jpg"
],
[]
] | ||
2y5g6i | why does jury duty pay so little? | In California it is a fee of 15 dollars per day, only earned after the completion of the second day. Most jurors only serve 1 day anyway. I've also been asked to donate my fees (employer pays for 0 days) to the jury room improvement fund. Ha yea right. Why are these services that we all use and need not able to pay a... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2y5g6i/eli5_why_does_jury_duty_pay_so_little/ | {
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"So you don't draw out the trial (deadlock) to get more money.",
"In NY, it's 40 dollars if you are unemployed or make less then that or you work at a very small business. Oth... | [] | [] | [
[],
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uh90y | how signals, be they cell phone signals or data through internet lines, are transmitted along their medium without becoming overwritten or scrambled by other signals also travel through the same medium. | If data is transmitted through pulses that designate 1's and 0's, how do you get multiple signals going through undersea cables or whatever without totally scrambling the data?
I feel like I'm completely misunderstanding how data transfer works.
EDIT: Thanks for the responses. lex418787 in particular. I think I under... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/uh90y/eli5_how_signals_be_they_cell_phone_signals_or/ | {
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"Cellphone signals work in an way many people don't realize. Cellphone towers don't send data to your phone, they send it everywhere. There is a little *sticky note* on the signal ... | [] | [] | [
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Multiplexing"
]
] | |
1l1ost | is personality part of our genetics? for instance, are we chemically designed to "be who we are?" | Or is it just environment--how we are raised, major life events, etc.? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1l1ost/eli5_is_personality_part_of_our_genetics_for/ | {
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"Nature vs nurture\nTendency is part of our genes\nIe. having genes of a natural mathematician may increase your \"likelihood\" of being a highly logical person.\nPeople can also change in response to th... | [] | [] | [
[],
[],
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3mtcjf | Why is a coin less likely to be heads immediately after a heads has been thrown? | This may just be a lack of proper understanding on my part, but an article was published in the Wall Street Journal this morning about the "Hot Hand" Fallacy and why their statistical analysis was biased.
Here is the artice: _URL_0_
After doing some research, I ran across the paper that was referenced in the article... | askscience | https://www.reddit.com/r/askscience/comments/3mtcjf/why_is_a_coin_less_likely_to_be_heads_immediately/ | {
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"So it's crucial to understand the underlying sample space for which these probabilities are calculated.\n\nSuppose we have a coin that gives probability *p* of turning up heads on any given flip. Now ... | [] | [
"http://www.wsj.com/articles/the-hot-hand-debate-gets-flipped-on-its-head-1443465711",
"http://andrewgelman.com/2015/07/09/hey-guess-what-there-really-is-a-hot-hand/",
"http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2627354"
] | [
[
"http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2627354"
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1m2nec | Laws that the U.S. broke during and before the Cuban Missile Crisis | So before the Cuban Missile Crisis which international laws did the U.S. break? Which international laws did Cuba and/or the Soviet Union break? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1m2nec/laws_that_the_us_broke_during_and_before_the/ | {
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"I couldn't tell you if it was in violation of any international laws at the time, but when the revolutionary government in Cuba began its land reform program, the United States initiated a covert bombing operation in 1959, targeting Cuban agricul... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/1e84gu/why_did_cuba_go_with_the_soviet_union_when_they/c9xr5hv",
"http://www.reddit.com/r/AskHistorians/wiki/profiles/ainrialai",
"http://www.reddit.com/r/AskHistorians/comments/1de95d/is_there_a_theme_for_the_motives_behind_americas/c9phjpz"
]
] | |
7ioa9o | how do we not run out of oxygen with an increasing population and our sources of producing o2 seemingly in decline? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7ioa9o/eli5_how_do_we_not_run_out_of_oxygen_with_an/ | {
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"Over 80% of atmospheric oxygen is produced by algae and plankton in the ocean. Another 5% or so is from the natural breakdown of the water molecule separating. That leaves only around 15% from land plants. While wild areas are in decline, we also... | [] | [] | [
[]
] | ||
2r3rs3 | in a plane crash into water, what actually kills you? | Saw news this morning that some passengers have been found still buckled into their seats. Does this suggest that some die because of drowning, or do all die from blunt force trauma? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2r3rs3/eli5_in_a_plane_crash_into_water_what_actually/ | {
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"Pr... | [] | [] | [
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68t8r1 | what causes people to refute hard proven facts like the earth being a sphere, etc? can it be concidered a mental illness? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/68t8r1/eli5_what_causes_people_to_refute_hard_proven/ | {
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"text": [
"[Delusion:](_URL_0_) \n > An idiosyncratic belief or impression maintained despite being contradicted by reality or rational argumen... | [] | [] | [
[
"https://en.oxforddictionaries.com/definition/delusion"
],
[],
[],
[],
[],
[]
] | ||
22j0bx | why haven't any car manufacturers made a hybrid or "earth-friendly" vehicles that are appealing when it comes to looks/design? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/22j0bx/eli5_why_havent_any_car_manufacturers_made_a/ | {
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"score": [
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"text": [
"Have you looked into the [Tesla Model S](_URL_0_)?",
"What \"looks cool\" is a matter of personal preference. What looks cool to you, may not look cool to me. On that note, Tesla makes some very aes... | [] | [] | [
[
"http://www.teslamotors.com/models"
],
[],
[]
] | ||
sl9no | why does reddit look different in firefox and chrome? | I have both browsers on my computer, and sometimes one seems to work better than another (especially with certain websites I frequent). But I don't understand why a website would look so different in two different browsers. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/sl9no/why_does_reddit_look_different_in_firefox_and/ | {
"a_id": [
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"score": [
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"text": [
"Browsers work differently, and they render pages differently.\n\nA website is mostly code, a language that tells the browser how the page should look, and what content it has. It's up to the browser to read what the website wants, and to draw it ... | [] | [] | [
[]
] | |
1t3bfz | as a non american - santa's race? what's up with that? | i saw that fox news lady saying santa and jesus are white. now ok jesus if he existed was a bronze skinned jewish man. but santa, at least in non orthodox countries, usually comes from saint nicholas if i'm not mistaken. now the popular culture santa is a commercialised version of said saint and who like the saint a no... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1t3bfz/as_a_non_american_santas_race_whats_up_with_that/ | {
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"text": [
"_URL_0_\n\nI don't think they're too far off.",
" > i guess he is whatever race the dad impersonating him for his kids is\nis\n\nYep.\n\nThe original article by a black woman pointed out that San... | [] | [] | [
[
"http://www.popularmechanics.com/science/health/forensics/1282186"
],
[],
[
"http://www.atlanticproductions.tv/productions/specials/the-real-face-of-santa/",
"http://www.slate.com/articles/life/holidays/2013/12/santa_claus_an_old_white_man_not_anymore_meet_santa_the_penguin_a_new_christmas.html"... | |
5qwuro | how do 'fake news' companies make money | Do 'fake news' companies sell ads , subscriptions etc. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5qwuro/eli5_how_do_fake_news_companies_make_money/ | {
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"text": [
"Adverts on their websites and most likely by selling any information that website can gather from you, too. ",
"Have you ever had to \"Ctrl-Alt-Delete\" o... | [] | [] | [
[],
[],
[],
[],
[]
] | |
7waym8 | People say AC should be kept on when defrosting your car windows at winter. It's supposed to remove humidy from the air. As far as I know - heating is done by circulating hot engine coolant thru a radiator in the air duct. How does AC benefit this process? | askscience | https://www.reddit.com/r/askscience/comments/7waym8/people_say_ac_should_be_kept_on_when_defrosting/ | {
"a_id": [
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"text": [
"AC is done via condensors around the air supply ducts. People generally think of air conditioning as a temperature control thing, but when it was originally invented, it was to control both temperature and humidity in a print shop, with humidity... | [] | [] | [
[]
] | ||
99eisd | what happens to the presidency and political houses if trump is convicted? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/99eisd/eli5_what_happens_to_the_presidency_and_political/ | {
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"text": [
"Trump cannot currently be tried in a normal court. He must be impeached by the House of Representatives, removed from office via conviction in the Senate which would make him a pr... | [] | [] | [
[],
[],
[],
[
"https://www.youtube.com/watch?v=s4MF_aE0ZG0"
]
] | ||
5c616s | why are drones so simple yet helicopters so complex? why not make a large human-transporting drone? | As stated. Some commercial drones can already carry the weight of a human. Why not something similar, with controls as easy as they are? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5c616s/eli5_why_are_drones_so_simple_yet_helicopters_so/ | {
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"text": [
"The drone you are referring to can fly for 20 minutes and go two miles. \n \nFor miltary use you need a range of hundreds of miles, fly for hours and carry a payload of heavy weapons. The only way t... | [] | [] | [
[],
[
"http://theboredengineers.com/WordPress3/wp-content/uploads/2012/05/PitchRollYaw.png",
"http://www.janes.com/images/assets/229/57229/1342432_-_main.jpg",
"https://www.youtube.com/watch?v=WdEWzqsfeHM",
"https://www.youtube.com/watch?v=-4OyZZ71RqY",
"http://www.copters.com/aero/gyro.html",... | |
28z30y | When does cellular death occur for edible vegetables and plants? | For a fruit (a pear, apple, orange, banana, etc.) does cellular death occur at some point following the fruit being picked but before consumption? Likewise for vegetables, does this differ for a carrot, bean, pea?
A parallel question, what is the cellular composition and cell size in fruits and vegetables? | askscience | http://www.reddit.com/r/askscience/comments/28z30y/when_does_cellular_death_occur_for_edible/ | {
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"Ultimately, it depends when you consume it.\n\nTo elaborate, if you picked a fruit straight from the tree (ergo, apple or pear) and ate it straight away, whilst apoptosis and necrosis would be happening (because a natural pa... | [] | [] | [
[],
[
"http://news.nationalgeographic.com/news/2013/06/130620-circadian-rhythm-cabbage-vegetable-food-crop-science/"
]
] | |
g320jn | how does the bond market work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/g320jn/eli5_how_does_the_bond_market_work/ | {
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"text": [
"Say I sell you a bond for $100. It's a contract that says in exactly 5 years, bring the contract back to me and I will give you $150. \nSounds like a good deal to you because that's more than what yo... | [] | [] | [
[],
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49g478 | why is it that whenever i'm wearing my glasses, the edges of all objects are surrounded with a very thin blue edge on one side and a very thin orange edge on the other? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/49g478/eli5_why_is_it_that_whenever_im_wearing_my/ | {
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"text": [
"It's explained in [this recent post.](_URL_0_)",
"Are you sure you're not wearing 3D glasses?",
"Chromatic aberration.\n\nBasically a lens will bend different wavelengths (IE colours) differen... | [] | [] | [
[
"https://www.reddit.com/r/explainlikeimfive/comments/495gpc/eli5_why_do_prisms_split_apart_the_different/"
],
[],
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] | ||
2mcoho | What causes solar flares to be "sucked" back to where they originated rather than fall to the sun's surface? | I was just watching this [cool video](_URL_0_) and I noticed the solar flares seem to be "sucked" back to where they originated rather then falling to the surface of the sun. This seems to suggest some force stronger than the sun's gravity pulling the flare back in. Do we know what causes this?
Thanks! | askscience | http://www.reddit.com/r/askscience/comments/2mcoho/what_causes_solar_flares_to_be_sucked_back_to/ | {
"a_id": [
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"text": [
"The flares are made of plasma (charged particles), which are subject to magnetic fields at the surface of the sun. These fields can have exotic looking shapes, causing the hot and radiating plasma to form such wonderful bows and branches. "
]
} | [] | [
"https://www.youtube.com/watch?v=ipvfwPqh3V4#t=144"
] | [
[]
] | |
a75dip | During World War II, were trhere any accounts of people on the ground being accidentally killed by 50-cal rounds being fired from bombers defending themselves from fighters? | I was just watching a documentary about the B-17 Flying Fortress (an aircraft i've always loved) and it struck me as they demoed the twin 50-cal ball turret that these guys would have been firing wildly at any enemy fighter approaching them. That's a lot of bombers spraying a lot of lead over populated areas. Apart fro... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/a75dip/during_world_war_ii_were_trhere_any_accounts_of/ | {
"a_id": [
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"text": [
"Add-on question; Supposedly even the shell casings from aircraft guns were deadly to people on the ground. Did anyone ever actually get killed this way? Is that why modern fighters don't eject spent shells?",
"A whil... | [] | [] | [
[],
[
"https://www.reddit.com/r/AskHistorians/comments/2sp8qt/did_any_shell_fragments_from_flak_cannon_defense/"
]
] | |
6vjzac | what is money dumping and why is it illegal? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6vjzac/eli5_what_is_money_dumping_and_why_is_it_illegal/ | {
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"dm0ts2w"
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"score": [
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"text": [
"'Dumping' has a few different definitions in economics, finance and trade, esp in an international context. Can you be a little (or a lot) more specific?"
]
} | [] | [] | [
[]
] | |
ktaw1 | I found this on a beach in Japan. What is it?? | _URL_0_ | askscience | http://www.reddit.com/r/askscience/comments/ktaw1/i_found_this_on_a_beach_in_japan_what_is_it/ | {
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"text": [
"Think that is a cuttlefish bone. They are often sold in pet shops and called just cuttlefish and for birds to peck on.",
"[Cuttlebone from a Cuttlefish](_URL_0_)",
"Th... | [] | [
"http://web.me.com/cowhead/whatisit/what_is_it.html"
] | [
[],
[
"http://en.wikipedia.org/wiki/Cuttlebone"
],
[],
[
"http://en.wikipedia.org/wiki/Cuttlebone"
]
] | |
o71xk | Ecologists of reddit: What effect does a warm winter have on birds and other wildlife? | I work at a nature center in southeast Mchigan, and had a group of birders ask me today about what to expect this spring (due to the warm winter weather; almost no snow, no nights below freezing). The most I could describe was way that bird migration is almost perfectly (and unintentionally) synchronized with the emerg... | askscience | http://www.reddit.com/r/askscience/comments/o71xk/ecologists_of_reddit_what_effect_does_a_warm/ | {
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"text": [
"It's true that a delayed insect emergence would be detrimental to insectivorous birds, but warm winters are really good for winter resident species. Not having to work so hard to keep their body temps ... | [] | [] | [
[
"ftp.sfos.uaf.edu/msl692/1292.pdf"
],
[
"http://eebweb.arizona.edu/courses/Ecol206/Walther%20et%20al%20Nature%202002.pdf",
"http://en.wikipedia.org/wiki/Bird_migration",
"http://www.springerlink.com/content/hl50m12141t16152/",
"http://rspb.royalsocietypublishing.org/content/270/1523/1467.s... | |
1kwvik | Is terminal velocity higher on a planet with more mass/ gravity? | askscience | http://www.reddit.com/r/askscience/comments/1kwvik/is_terminal_velocity_higher_on_a_planet_with_more/ | {
"a_id": [
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"score": [
2,
5,
2
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"text": [
"Would depend on the mass of the planet and the compressibility of that planet's atmosphere. Same gravity as earth but denser air, removal velocity would be slower than on earth.",
"If that's the onl... | [] | [] | [
[],
[],
[]
] | ||
io0a4 | If I shot a tornado with a gun, could the right circumstance allow for the bullet to be absorbed? | I imagine there are at least four variables: strength of tornado in MPH (F0-F5 category range), velocity of bullet, and distance from gun muzzle to tornado, bullet caliber.
So at the very least, can anybody confirm if in the most favorable conditions (.17 or .22 caliber, F5 318 MPH tornado, 300 meter distance from mu... | askscience | http://www.reddit.com/r/askscience/comments/io0a4/if_i_shot_a_tornado_with_a_gun_could_the_right/ | {
"a_id": [
"c259zrt",
"c25ey7d"
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"score": [
8,
2
],
"text": [
"What does \"absorbed\" mean in this context?",
"**TLDR: Probably wont get sucked up unless it hits debris or the wind pushed it down to the ground and sucked it back up** \n\n\nWell heres a go. If you shot a .22 into the... | [] | [] | [
[],
[]
] | |
5x0x0q | can you create a flashlight bright enough to shine completely through a person? | So i was taking a minute with my flash on my phone, and was struck by how it was bright enough to go through my finger to the point where some of the light reached the table beneath it.
I was wondering if a flashlight could be made bright enough to go completely through people? Why or why not?
Thanks for satisfying ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5x0x0q/eli5_can_you_create_a_flashlight_bright_enough_to/ | {
"a_id": [
"deedqu3"
],
"score": [
8
],
"text": [
"No. The light is shining through the translucent parts of your finger - not the bone. The visible spectrum can't go through bones. "
]
} | [] | [] | [
[]
] | |
8xug7d | if an old person gets a lung transplant from a teenager who dies, can they live a longer life because the organ is younger? (longer than say if they got a persons lungs who was older) same goes for a heart or liver etc. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8xug7d/eli5_if_an_old_person_gets_a_lung_transplant_from/ | {
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"text": [
"We don't really know... | [] | [] | [
[],
[],
[],
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1j0gxx | what does bias mean? | English is not my first language.
Yes, I may be stupid. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1j0gxx/eli5_what_does_bias_mean/ | {
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6,
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"text": [
"When the word bias comes up, most of the time it refers to defective judgement.\n\nFor example, you will often see people in gaming communities hate one game over another. I like B... | [] | [] | [
[],
[],
[],
[]
] | |
4cjb3i | passports and traveling abroad | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4cjb3i/eli5_passports_and_traveling_abroad/ | {
"a_id": [
"d1iplwl"
],
"score": [
3
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"text": [
"Passports are known to have existed as early as 450 BCE, so it's not a new thing. They've probably been a thing as long as there have been separate nations."
]
} | [] | [] | [
[]
] | ||
21wqnk | why don't doctors just run all the possible tests on a patient (including the full-body ct scan) to get the right diagnosis and instead discuss the possible diseases with their colleagues? | I know there may not be time to do a lot of tests when a patient is in a very serious condition but why don't doctors just run all possible tests with patients who can wait? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/21wqnk/eli5_why_dont_doctors_just_run_all_the_possible/ | {
"a_id": [
"cgh7oeh",
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"score": [
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"text": [
"E. g. in my country, there are four PET/CT cameras. The population is around 5 and a half million. ",
"Tests do not come without risks. The C-T scan gives the patient a fairly high dose of radiation - as do many of the o... | [] | [] | [
[],
[]
] | |
5n8y2k | Hello, today my friend and I were in the gym and we were curious if ancient warriors or everyday ancient peoples had defined muscle definition (abs, pecs, striations, etc etc). | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5n8y2k/hello_today_my_friend_and_i_were_in_the_gym_and/ | {
"a_id": [
"dc9wv28"
],
"score": [
6
],
"text": [
"Simply put, yes. Ancient art provides a lot of evidence of accurate anatomical awareness of muscle development. Ancient warriors were expected to be able to carry, even run in some seriously heavy armor, cover long distances on foot, and did not ... | [] | [] | [
[]
] | ||
6ebmyl | How did the romans make their Scutum shields? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6ebmyl/how_did_the_romans_make_their_scutum_shields/ | {
"a_id": [
"di96czh"
],
"score": [
20
],
"text": [
"The scutum was the primary shield of the Roman legionnaire during the late republic and principate/early empire, yet it was not of uniform make or shape across the empire or through the period as a whole. Thus there was a some variation between ... | [] | [] | [
[]
] | ||
3calv5 | 'kony 2012' seeming to grab the whole world then around a month later all went quiet | The first video got over 100 million views and plenty of coverage. The follow up got around 2 million and little to no coverage. What happened? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3calv5/eli5_kony_2012_seeming_to_grab_the_whole_world/ | {
"a_id": [
"cstsqex",
"cstudlj"
],
"score": [
2,
3
],
"text": [
"Didn't the Kony guy have a mental breakdown and start running through the streets naked?",
"Because they didn't really offer a follow up outside of \"share this video\". And Kony was being dealt with, most people just di... | [] | [] | [
[],
[]
] | |
37hxas | why is love so important for human beings? | It seems like there's nothing more important to every person than the positive/negative effects of love. Why? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/37hxas/eli5_why_is_love_so_important_for_human_beings/ | {
"a_id": [
"crmtub8",
"crmu1jm",
"crmucrz",
"crmupfw"
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"score": [
2,
6,
2,
2
],
"text": [
"Because love is a lovely feeling to have. it's wonderful to be in love with someone that loves you back.\n\nin addition to love being absolutely lovely it also lets us bond with ou... | [] | [] | [
[],
[],
[],
[]
] | |
1zpxxw | if cadence watches helped reddit to pay 19.67 of server time since 2010 thru ads, why did reddit made the gold campaign to pay its server? | Front page has an ads saying Cadence helped Reddit to pay over 19 years of server time and Reddit still needs money. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1zpxxw/eli5_if_cadence_watches_helped_reddit_to_pay_1967/ | {
"a_id": [
"cfvuzk1",
"cfwxzb9"
],
"score": [
3,
2
],
"text": [
"If reddit ran on a single server, then 19 years of time would cover them for, well, 19 years.\n\nIf reddit ran on 19 servers, then 19 years of server time would cover them for a year.\n\nSo, it's really a matter of how many ... | [] | [] | [
[],
[]
] | |
2w0tyz | what are the duties of military personnel stationed in peaceful countries. | For example American military personnel stationed in South Korea or Japan. What are their responsibilities and duties. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2w0tyz/eli5_what_are_the_duties_of_military_personnel/ | {
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"comkjeh",
"comko22",
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"score": [
10,
3,
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"text": [
"There are lots of things to do around the base like maintaining equipment and routine training. There are hospitals to run, jeeps to clean, and paperwork to fill out.\n\nHowever t... | [] | [] | [
[],
[],
[],
[]
] | |
8u97lg | What is the white stuff inside pimples? What it's made out of, why we have it, and why does it exit in this way? | askscience | https://www.reddit.com/r/askscience/comments/8u97lg/what_is_the_white_stuff_inside_pimples_what_its/ | {
"a_id": [
"e1dktn6",
"e1ecaq1",
"e1ehpuz",
"e1ej9ur",
"e1endyh",
"e1f44jg",
"e1fby9r"
],
"score": [
11367,
475,
177,
20,
28,
11,
11
],
"text": [
"A pimple is an infection. Bacterial infections begin with a bacterial pathogen and an inflammatory res... | [] | [] | [
[],
[],
[
"https://www.ncbi.nlm.nih.gov/pubmed/29894579"
],
[],
[],
[],
[]
] | ||
2h0fbl | Since earth is constantly moving, i.e. rotating around the sun, what prevents satellites from drifting away from or slamming into earth? | askscience | http://www.reddit.com/r/askscience/comments/2h0fbl/since_earth_is_constantly_moving_ie_rotating/ | {
"a_id": [
"cko73k0",
"cko7af4"
],
"score": [
7,
3
],
"text": [
"Because they are gravitationally bound to the Earth and the Earth's relative motion to the Sun isn't important since the Earth is far enough away from the Sun that such orbits can be stable. More generally a common feature o... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Lissajous_orbit",
"http://en.wikipedia.org/wiki/Lagrangian_point"
],
[]
] |
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