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 |
|---|---|---|---|---|---|---|---|---|---|
86rw0h | why is water able to evaporated below the boiling point? i was always taught 212f (100c) was when water could turn into a gas. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/86rw0h/eli5_why_is_water_able_to_evaporated_below_the/ | {
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"Temperature is the average thermal energy of a bunch of stuff. Any individual molecule can have considerably more or considerably less energy. At any given time, a small fraction of the water molecules ... | [] | [] | [
[],
[
"http://www.feynmanlectures.caltech.edu/I_01.html"
],
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"https://en.wikipedia.org/wiki/Vapor_pressure",
"https://en.wikipedia.org/wiki/Vapour_pressure_of_water"
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] | ||
30ajsl | What language has the least overlap of English speakers? | Okay, so my title isn't the best, but it's the best way I could think to ask this question succinctly.
What I am trying to ask is what language has the least number of English speakers (native or non-native) in relation to the total number of speakers.
I have tried to figure this out myself, but I can't seem to find... | askscience | http://www.reddit.com/r/askscience/comments/30ajsl/what_language_has_the_least_overlap_of_english/ | {
"a_id": [
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"text": [
"Given the sheer number of languages in the world (around 6000), it's quite difficult to get a handle of even reliable estimates of how many speakers each one has, let alone how l of its speakers also speak a language other t... | [] | [] | [
[],
[]
] | |
409qxf | law enforcement in usa | Why have so many state departments which cover a lot of the same areas.
I come from Aus and we have state police, federal police, border controls and ASIO.
America has State Police, Sheriffs department, Texas Rangers, ATF ,DEA, Highway patrol, border patrol, FBI, CIA, Homeland Sec.
Then within that there are speciali... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/409qxf/eli5_law_enforcement_in_usa/ | {
"a_id": [
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"score": [
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"text": [
"There are 15 times as many people who live in the US than in Australia. So it's reasonable that they would need more agencies to cover more issues.\n\nState police can pursue you over state lines, they don't just stop chasing you when you cross ... | [] | [] | [
[]
] | |
1s660h | Why are large nuclei unstable? | Why is it that all of the heavier elements are unstable? | askscience | http://www.reddit.com/r/askscience/comments/1s660h/why_are_large_nuclei_unstable/ | {
"a_id": [
"cdui43c"
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"text": [
"The Pauli exclusion principle forbids two particles from sharing the same quantum state. Therefore, as you add nucleons to the nucleus they are forced to occupy higher and higher energy states to avoid violating this principle.\n\nA nucleus in w... | [] | [] | [
[]
] | |
cla65h | Why did France preferred a facist state instead of a socialist/communist one? | During the spanish civil war, we all know that each side had international support. While USSR supported republicans, Fascist Italy and Nazi Germany supported nationalists. Why UK and France, but especially France, preferred to have one more fascist state in Europe and allowed itself to be surrounded almost entirely by... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/cla65h/why_did_france_preferred_a_facist_state_instead/ | {
"a_id": [
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"text": [
"France hasn't preferred a nationalist rebels (fascists, monarchists and reactionary Catholics) to the Spanish Republic. On the contrary, in the beginning, France and its Popular Front govt feared of being surrounded by fascists from the all sides... | [] | [] | [
[]
] | |
3egzuy | What are the limitations on our ability to see smaller things at longer distances? (i.e. Seeing pluto from Earth) | askscience | http://www.reddit.com/r/askscience/comments/3egzuy/what_are_the_limitations_on_our_ability_to_see/ | {
"a_id": [
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"text": [
"The two key limitations are 1) achieving a high enough angular resolution and 2) collecting enough light. The [angular resolution](_URL_4_) is the smallest angular distance between two sources of light, for which the system will see two distinct ... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Diffraction",
"https://upload.wikimedia.org/wikipedia/commons/thumb/2/28/Inverse_square_law.svg/2000px-Inverse_square_law.svg.png",
"https://dept.astro.lsa.umich.edu/ugactivities/Labs/coords/angdistsize.jpg",
"http://davidnaylor.org/temp/B00643.jpg",
"https://en.... | ||
7a2tbq | why aren't police departments footing the bill instead of the tax payers when it comes to court settlements? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7a2tbq/eli5_why_arent_police_departments_footing_the/ | {
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"text": [
"Most police departments are taxpayer funded. Where do you think the money is going to come from?",
"They're not private businesses with stockholders and investments you can take. Police departments have no money **oth... | [] | [] | [
[],
[]
] | ||
4bu1bb | Why was Jean Bernadotte elected heir-presumptive to Charles XIII of Sweden? | How, why, and by whom was that decision made? Surely it would have made more sense to elect a Swedish noble or some distant relative of Charles XIII instead of a French marshall, and effectively making a new, French royal family in Sweden?
| AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4bu1bb/why_was_jean_bernadotte_elected_heirpresumptive/ | {
"a_id": [
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"text": [
"Although the candidacy of Bernadotte, a non-Swedish speaking and commoner, to become the Crown-Prince of Sweden in October 1810 seems rather unlikely, there were a number of factors working in the French marshal's favor. The internal political si... | [] | [] | [
[]
] | |
3pfe4s | After Japan attacked pearl harbour, what did [the Japanese leaders] tell the Japanese people in regards to why, and what the goal of it all was? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3pfe4s/after_japan_attacked_pearl_harbour_what_did_the/ | {
"a_id": [
"cw5w9jn"
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"text": [
"The Japanese leaders attempted to frame the Japanese attack in a very sympathetic context: essentially, that the US sought to crush Japan in an economic vyse, thus asserting its power in the Pacific in an attempt to spread Western Imperialism. W... | [] | [] | [
[
"http://www.maesaka-toshiyuki.com/wp-content/uploads/2015/01/134633436654a5ec05b273d2.85040851296191307.jpg"
]
] | ||
cb0de6 | Are the protons and neutrons in a specific isotope always arranged in the same/similar way? | My understanding is that neutrons help glue the protons together via the residual strong force, while also helping to spread the protons out to reduce coulomb repulsion by physically separating them. This makes a bit of sense, but from this interpretation then, it would seem to me that its not just the number of proto... | askscience | https://www.reddit.com/r/askscience/comments/cb0de6/are_the_protons_and_neutrons_in_a_specific/ | {
"a_id": [
"etcemj9"
],
"score": [
24
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"text": [
"Yes, the arrangement matters. Just like atoms have discrete energy levels corresponding to arrangements of electrons, nuclei do as well.\n\n > How many stable configurations are there for a given atom?\n\nFor a given nuclide, at most one (the gr... | [] | [] | [
[]
] | |
c9fwby | Why does a standard computer keyboard have 12 function keys (F1 - F12)? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/c9fwby/why_does_a_standard_computer_keyboard_have_12/ | {
"a_id": [
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"text": [
"Holy guacamole, I can actually answer this one. But first we have to go back to mainframes...\n\nBack in the days of yore, desktop computers weren't a thing. Instead, you'd have a keyboard and monitor connected to a terminal of one sort or ano... | [] | [] | [
[]
] | ||
d74i5n | What were the physiques of pre history human beings, including ancient physiques, and even medieval physiques of warriors and also citizens of different classes? We see many of them in movies and tv shows like in 300, Spartacus, and Roman Empire, etc, with amazing physiques. Is this true at all? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/d74i5n/what_were_the_physiques_of_pre_history_human/ | {
"a_id": [
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"score": [
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6
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"text": [
"A whole cadre of writers answered a [similar question](_URL_0_) including u/FraudianSlip and u/GBFel. Someone else may have something new to add of course.",
"The great u/Iphikrates answered this for ancient Greece. See ... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/10hjf9/movies_always_make_out_ancient_warriors_to_be/"
],
[
"https://www.reddit.com/r/AskHistorians/comments/8bbgtc/how_should_we_imagine_an_ancient_spartan_soldiers/",
"https://www.reddit.com/r/AskHistorians/comments/5hcclh/did_socrates_even_lift/d... | ||
41xtq6 | why don't animals or humans decompose in a bog? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/41xtq6/eli5why_dont_animals_or_humans_decompose_in_a_bog/ | {
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"text": [
"There's so little oxygen in that kind of environment that the bacteria and small animals required to make the bodies decompose simply can't live.",
"Because bogs are generally acidic and anaerobic. These conditions are n... | [] | [] | [
[],
[]
] | ||
35z63e | the success of works of art such as mark rothko's | [Just read that one of his paintings sold for 46,5 million dollars.](_URL_0_) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/35z63e/eli5_the_success_of_works_of_art_such_as_mark/ | {
"a_id": [
"cr995c7"
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"score": [
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"text": [
"Colour field paintings basically stemmed from the idea that colour can provoke emotion, and quite powerful feelings at that. I think a lot of people are attracted to these works subconsciously for that reason."
]
} | [] | [
"http://www.businessinsider.com/afp-rothko-painting-sells-for-46.5-million-in-ny-auction-2015-5"
] | [
[]
] | |
19mk4c | How frail were women in the Victorian era, really? | Ok, so many books, movies and TV shows feature these women in huge gowns that faint at the drop of a hat. I understand that they wore corsets that restricted breathing, but was it THAT severe?
Even in Pride and Prejudice, the character Jane is incapacitated for nearly a week (IIRC) by a COLD. I understand that they di... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/19mk4c/how_frail_were_women_in_the_victorian_era_really/ | {
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"text": [
"Maybe some in the aristocracy were, but in general being a woman at all has required being tough. It could take most of a day just to do the laundry. \n\nTo ... | [] | [] | [
[],
[],
[
"http://doloresmonet.hubpages.com/hub/Fashion-History-Victorian-Costume-and-Design-Trends-1837-1900-With-Pictures",
"http://jp.physoc.org/content/587/13/3063.full",
"http://yjhm.yale.edu/essays/eoconnor20070608.htm"
],
[],
[
"http://en.wikipedia.org/wiki/Anne_Lister"
]
] | |
36ghvx | do we drill for oil to manufacture plastics, or are they made from the byproducts of oil refinement? | Or in other words, are we contributing to the depletion of oil reserves by the ubiquitous use of plastics, or are they simply a novel way of making use of millions of tonnes of what would otherwise simply be waste products of fuel and gasoline production? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/36ghvx/eli5_do_we_drill_for_oil_to_manufacture_plastics/ | {
"a_id": [
"crdstxs",
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"score": [
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"text": [
"The refining process churns out a bunch of random shit. There's a neat picture [here](_URL_1_) that shows how different products are pulled out of crude oil at different temperatures. Plastics can be made from various refine... | [] | [] | [
[
"http://www.eia.gov/tools/faqs/faq.cfm?id=34&t=6",
"http://en.wikipedia.org/wiki/Oil_refinery#Operation"
],
[]
] | |
nm3sf | how does santa deliver toys to all the boys and girls in the world in one night? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/nm3sf/eli5_how_does_santa_deliver_toys_to_all_the_boys/ | {
"a_id": [
"c3a5lho",
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"c3a6pfn",
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"c3a7qkm",
"c3a81fl",
"c... | [] | [] | [
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"http://www.youtube.com/watch?v=XoSyCtD0WO4"
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"http://i.imgur.com/AIZGF.jpg"
],
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"http://... | ||
mgr8v | Why do energy saturated systems have negative Kelvin temperatures? | I'm doing thermodynamics homework, and I'm having trouble with a problem that requires temperatures below 0K. What does this mean, and how are negative Kelvin temperatures (which I thought wasn't possible) achieved?
Does it mean that energy will flow from any positive temperature system to a negative temperature one?... | askscience | http://www.reddit.com/r/askscience/comments/mgr8v/why_do_energy_saturated_systems_have_negative/ | {
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"text": [
"You usually think of and treat temperature as a measure of how excited the system is. But an alternate definition, which is in some ways more fundamental, is that temperature ind... | [] | [] | [
[],
[],
[],
[]
] | |
5c39em | Is it true that there were only 500 German soldiers in Normandy? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5c39em/is_it_true_that_there_were_only_500_german/ | {
"a_id": [
"d9twacr"
],
"score": [
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"text": [
"I assume you mean on June 6th, 1944?\n\nIn that case, no, the Germans had many more men than 500. Based either on the beaches or shortly behind them were the 21st Panzer Division, 352nd Infantry Division, 709th Static Division, and 716th Static D... | [] | [] | [
[]
] | ||
u8ez1 | how does one get data off of a computer/phone/technological device after it's been deleted? | And I guess the derivative of that is: Why can data be retrieved after it has been "deleted"? (If the answer is purely technical I wouldn't mind). | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/u8ez1/how_does_one_get_data_off_of_a/ | {
"a_id": [
"c4t6zsw",
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"score": [
8,
3
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"text": [
"Oftentimes when you think you're deleting the data, you're simply deleting the references to the data, not the data itself.\n\nThink about a library. Imagine you want to get rid of a book. What most computers do it simply re... | [] | [] | [
[],
[]
] | |
5hxyg8 | the shift away from 3d and vividly colored graphics to flatter more geometric designs. | Examples include: the Xbox 360 to Xbox 1, Windows 7 to Windows 8/10 and IOS 6 to 7. There are many other company's logos(Such as Instagram) and graphics that also seem to have been following the same tend over the last few years. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5hxyg8/eli5_the_shift_away_from_3d_and_vividly_colored/ | {
"a_id": [
"db3tglk",
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"score": [
2,
3,
3
],
"text": [
"Because the market decided it was tacky. Sleek, simplified, and modern is proven to be better received. Take a look at [iOS 6 vs 7](_URL_0_), the older design just seems worse by comparison.",
"When... | [] | [] | [
[
"http://www.extremetech.com/wp-content/uploads/2013/09/ios6_ios7_home_screens.jpg"
],
[],
[]
] | |
ecgcxo | why do kids become attached to blankies? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ecgcxo/eli5_why_do_kids_become_attached_to_blankies/ | {
"a_id": [
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"score": [
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5
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"text": [
"It’s not just a blanket. Lots of people get emotionally attached to other inanimate objects. Usually it is a blanket or a toy of some kind. Stuffed animals are common as well. I don’t know the actual reasoning behind it thou... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Failure_to_thrive"
]
] | ||
6ks6rf | Did ancient civilisations actually build traps like we see in Indiana Jones. | Or what is the closest thing to the best traps | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6ks6rf/did_ancient_civilisations_actually_build_traps/ | {
"a_id": [
"djokrox",
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"score": [
270,
10
],
"text": [
"Not to deter any new responses, but to get started [there have been similar](_URL_0_) questions a [few years ago—](_URL_2_) the basic gist of those threads is that Egyptian tombs could be mazelike and have deep pits and f... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/23jd10/were_the_tombs_of_south_american_civilizations/",
"https://en.wikipedia.org/wiki/Mausoleum_of_the_First_Qin_Emperor#History",
"https://www.reddit.com/r/AskHistorians/comments/1j15ae/is_there_any_historical_precedent_for_a_premodern/"
],
[]
] | |
56iirx | why does downloading new software such as ios10 on my phone cause a noticeable decrease in battery life? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/56iirx/eli5_why_does_downloading_new_software_such_as/ | {
"a_id": [
"d8jjqkn",
"d8jtd7v"
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"score": [
2,
12
],
"text": [
"Basically the phone has to run through more code, keeping it running heavily for longer to figure out what it needs to do. ",
"Hi.\n\nAll of these responses are from people who sound like (and judging from post historie... | [] | [] | [
[],
[]
] | ||
dge0gi | How/why do neon signs do this? | [This](_URL_0_) (I tried to crosspost but couldn’t figure it out haha sorry) At first I thought it was a trick of the camera, but would love to know what the science behind it is! 🧬 | askscience | https://www.reddit.com/r/askscience/comments/dge0gi/howwhy_do_neon_signs_do_this/ | {
"a_id": [
"f3c0tia",
"f3c955q"
],
"score": [
3,
4
],
"text": [
"You’re seeing the electron path in the gas tube. Magnetic fields will move it around. It could be that or it could be the tube is leaking and at a pressure where it does weird things because of the air getting in.",
"Did... | [] | [
"https://www.reddit.com/r/woahdude/comments/dg7xpp/the_neon_at_my_local_brewery_does_this/?utm_source=share&utm_medium=ios_app&utm_name=iossmf"
] | [
[],
[
"https://en.wikipedia.org/wiki/Stroboscopic_effect"
]
] | |
yf9q2 | How would a video look back on Earth that was recorded on a spaceship that was going close to the speed of light? | Lets say a video recorder was taken aboard a spaceship traveling to Pluto at close to the speed of light. It would take a few hours to get there. Now lets say the video recorder was pointing to Pluto the entire journey and recorded footage of Pluto growing larger and larger as the spaceship got closer.
If the spaceshi... | askscience | http://www.reddit.com/r/askscience/comments/yf9q2/how_would_a_video_look_back_on_earth_that_was/ | {
"a_id": [
"c5v0f0a",
"c5v1fy4"
],
"score": [
3,
3
],
"text": [
"The video recorder and all it's circuitry would be affected by the relativistic effects too. The video would be a record of how things appeared to those aboard the ship. ",
"Everything on board the ship will experience... | [] | [] | [
[],
[]
] | |
2mtn8p | why do some foods make you "bring it to a boil" only to immediately have you turn it down to a simmer? why not just simmer it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mtn8p/eli5_why_do_some_foods_make_you_bring_it_to_a/ | {
"a_id": [
"cm7h6zd",
"cm7imwn"
],
"score": [
6,
2
],
"text": [
"Because that's how you can be sure that the water is the right temperature for simmering without having to measure. To simmer means to cook something at a temperature just below boiling, where bubbles are still forming but t... | [] | [] | [
[],
[
"http://www.exploratorium.edu/cooking/icooks/10-06-03.html"
]
] | ||
32xrly | Are Titan's hydrocarbon seas combustible? | I was reading that Saturn's moon Titan has many hydrocarbon seas made of stuff like methane and ethane. So, if there was a spark, would these seas ignite or do combustible materials not burn if they are too cold? | askscience | http://www.reddit.com/r/askscience/comments/32xrly/are_titans_hydrocarbon_seas_combustible/ | {
"a_id": [
"cqgg8d2"
],
"score": [
4
],
"text": [
"The atmosphere of Titan is 95% nitrogen and 5% methane. For combustion to take place there needs to be oxygen in the atmosphere. Since there is no oxygen they can't ignite. On the other hand if there were oxygen they would burn just fine: whether... | [] | [] | [
[]
] | |
8nrko5 | Why do we define the mass of a proton/neutron as 1/12 of carbon-12, and not 1/56 of iron-56? | I've been reading a new chemistry book and it made a tangent explaining that the idea of calculating the relative atomic mass of various elements by simply considering it a sum of proton/neutron particles' mass is wrong due to mass deficiency caused by fusion.
As far as I know, iron is the cutoff point where fusion re... | askscience | https://www.reddit.com/r/askscience/comments/8nrko5/why_do_we_define_the_mass_of_a_protonneutron_as/ | {
"a_id": [
"dzxv8cl",
"dzznl68"
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"score": [
25,
6
],
"text": [
"It's not really \"inaccuracies\", the mass defect is what it is and all you're doing then would be to ensure that the defect is always positive. I don't really see where the use of that would be. In chemistry you're using i... | [] | [] | [
[],
[]
] | |
1w3e7w | Fisticuffs / Boxing in the 1800's | I've read a lot of accounts, heard songs, anecdotal accounts of men boxing for dozens, even hundreds of rounds back in earlier days. How accurate is this? Could people box for hours on end without serious concussions or damaging themselves. Or was it as debilitating as modern boxing matches, with serious consequence... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1w3e7w/fisticuffs_boxing_in_the_1800s/ | {
"a_id": [
"ceyfo75"
],
"score": [
5
],
"text": [
"Without gloves, bareknuckle fighters didn't hit the head very often; they couldn't risk breaking their hands. There were a lot of body hits, and broken ribs and noses, but it wasn't like modern boxing where the head is such a target.\n\nIn a rece... | [] | [] | [
[
"http://www.spartacus.schoolnet.co.uk/SLAmolineaux.htm?menu=BlackPeople"
]
] | |
mkqy7 | Why are some people so amazing at video games? | Particularly in fast-paced games rather than in the strategy aspect.
I was watching some of the gameplay in [this](_URL_0_) video and started to wonder how it is that someone that plays for an arbitrary amount of time can be SSOOOO much better than someone who has played for the same amount of time...
What parts of t... | askscience | http://www.reddit.com/r/askscience/comments/mkqy7/why_are_some_people_so_amazing_at_video_games/ | {
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"Some people have more efficient brain-wiring than others. DNA defines a fractal-like initial configuration of the brain, but at least as important are early-life experiences, the order that the individual learns things, etc.... | [] | [
"http://www.youtube.com/watch?v=KYEyIGLRqW0"
] | [
[],
[]
] | |
6gxhe5 | what are the psychological reasons behind seeing and/or formulating conspiracy theories? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6gxhe5/eli5_what_are_the_psychological_reasons_behind/ | {
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"Humans like to find patterns, even and especially where there aren't any.\n\nThe reason for this goes all the way back to the beginnings of our evolution. I... | [] | [] | [
[],
[],
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2bzcxp | How did the rifle replace melee weapons despite how inaccurate they were in the early days? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2bzcxp/how_did_the_rifle_replace_melee_weapons_despite/ | {
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"To be precise, the rifle- so named from the *rifling* of the barrel which dramatically improved the accuracy of rounds over traditional smooth bore weapons- didn't replace melee weapons. Nor did black powder weapons. It'd t... | [] | [] | [
[],
[]
] | ||
dw3mg3 | How did ancient people keep stored water supplies such as cisterns safe to drink? | This has bothered me for quite some time. I get that a lot of people died of diseases and such. Standing, stagnant water allways looks so disgusting. Was the ones who lived immune systems so much better or were they able to keep the cistern free of diseases using plants or something? | askscience | https://www.reddit.com/r/askscience/comments/dw3mg3/how_did_ancient_people_keep_stored_water_supplies/ | {
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],
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"https://en.wikipedia.org/wiki/Sand\\_filter#History",
"https://youtu.be/5uuQ77vAV\\_U?t=52",
"https:/... | |
e42mtq | what happens if you go straight up in space, no stopping, will you run into anything? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/e42mtq/eli5_what_happens_if_you_go_straight_up_in_space/ | {
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"text": [
"Almost certainly not, however gravity from the Earth and other objects will pull you towards them. There is a lot more space then there are objects to hit."
]
} | [] | [] | [
[]
] | ||
9ndl9t | how do lung x-rays work, if you can only see bones with an x-ray? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9ndl9t/eli5how_do_lung_xrays_work_if_you_can_only_see/ | {
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"There are a few things. First you don’t only see bone in an x-ray. Bone is much easier to see as it is dense and absorbs more x-rays, but the rest of your bo... | [] | [] | [
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7p8cht | why do soda 12-packs come in a 2x6 can box and beer 12-packs seem to always come in 3x4 can boxes | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7p8cht/eli5_why_do_soda_12packs_come_in_a_2x6_can_box/ | {
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"A long time ago, soda 12-pack boxes were sold in 3x4. But soda manufacturers realized that if they made the long box, that you could put the [box in your fridge and use it as a soda can dispenser](_URL_0_). This must have lead to an increase in... | [] | [] | [
[
"https://vimeo.com/42401073"
]
] | ||
hcfkk | Has there ever been an estimate on how many planets there could possible be with the existence of Life? | askscience | http://www.reddit.com/r/askscience/comments/hcfkk/has_there_ever_been_an_estimate_on_how_many/ | {
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"text": [
"A very simplistic but easy estimate can be made with the [Drake equation](_URL_0_).\n\nThe problem is that the values of things such as the fraction of planets that develop life an... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Drake_equation",
"http://www.wolframalpha.com/input/?i=Drake+equation"
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[],
[],
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"http://www.reddit.com/r/space/comments/gylwq/reddit_its_time_to_step_up/c1rdwdz"
]
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12g5tt | why was Australia considered terra nullius when there were people living there already? | also i read in an old Society & Environment textbook (probably printed in 2004) that it was common for settlers to have "picnics" where they'd hunt the Aborigines for sport. is this true? how common was the practice if it's not made up? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/12g5tt/why_was_australia_considered_terra_nullius_when/ | {
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" > why was Australia considered terra nullius when there were people living there already?\n\nWhen the British came to Australia, they found a people who had no legal system, no leaders, no government. In other places, they had found native lea... | [] | [] | [
[
"http://www.myallcreekmassacre.com/Myall_Creek_Massacre/The_Massacre.html"
]
] | |
12sfqh | Why is electric charge quantized? | Is there any deeper reason for charge to be quantized? I know gauge invariance leads to conservation, but I can't think of anything that demands it to have a fundamental value. And if there is a reason, how does it tie in with quarks having a fractional charge?
I know some basic quantum field theory by the way, but no... | askscience | http://www.reddit.com/r/askscience/comments/12sfqh/why_is_electric_charge_quantized/ | {
"a_id": [
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"text": [
"There is [a famous argument by Dirac](_URL_1_), which shows that the existence of magnetic monopoles and quantum mechanics goes hand in hand with the quantization of both electric and magnetic charge. [It came up in this topic some time back](_UR... | [] | [] | [
[
"http://www.reddit.com/r/Physics/comments/vtb6s/why_do_magnetic_monopoles_imply_the_quantization/",
"http://en.wikipedia.org/wiki/Magnetic_monopole#Dirac.27s_quantization"
]
] | |
2uli72 | If you were facing away from a black hole as you fell into it, could you tell when you passed the event horizon because you would suddenly be facing towards the singularity without changing direction? | askscience | http://www.reddit.com/r/askscience/comments/2uli72/if_you_were_facing_away_from_a_black_hole_as_you/ | {
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"text": [
"The equivalence principle suggests you would not notice as you fell through, as a discontinuous transition implies physics operates differently inside the horizon. Why would you suddenly be facing the singularity?"
]
} | [] | [] | [
[]
] | ||
2r7hv4 | How accurate is the movie "My Way"? | I saw this incredible movie on Netflix, thanks to a suggestion from /r/netflixbestof. It is an incredible, and epic story that claims to be a true story.
How much liberty does this film take on account of "truthiness"?
_URL_1_
_URL_0_ | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2r7hv4/how_accurate_is_the_movie_my_way/ | {
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"cndj1f1"
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"text": [
"Hello,\n\nCan you give some more specific examples on which part you are asking about? Not everyone has watched the movie, but should be able to give you answers on how accurate a scene is if you can describe it."
]
} | [] | [
"http://www.imdb.com/title/tt1606384/plotsummary?ref_=tt_ov_pl",
"http://en.wikipedia.org/wiki/My_Way_(2011_film)"
] | [
[]
] | |
ydazb | why don't they make mid/rear engine front wheel drive cars? | I understand it's impractical, but what exactly makes it so unreasonable to make an RF or MF car? I'm talking in depth technical reasons. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/ydazb/why_dont_they_make_midrear_engine_front_wheel/ | {
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"When you accelerate, centre of gravity moves backwards. Rear mounted engine makes front wheels light - no weight equals low friction. Front mounted engine places weight above drive wheels, helps transfer power to road, whilst also using less driv... | [] | [] | [
[]
] | |
5sb0q8 | why is red eyes in pictures not as big of a problem as it used to be? | With more selfies being taken than 10 years ago why do I never see red eyes in pictures anymore? Every photo editor used to come with a red eye fixer, but it doesn't seem as common anymore. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5sb0q8/eli5why_is_red_eyes_in_pictures_not_as_big_of_a/ | {
"a_id": [
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"score": [
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4
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"text": [
"A selfie generally doesn't use a flash. Flash photography, especially from a flash that is positioned directly next to the lens, is still very much a problem for red-eye.",
"Now that most cameras are digital, most pictur... | [] | [] | [
[],
[]
] | |
v13ye | What exactly makes us "think" or "know" in the brain? For example, I read a post saying caterpillars do not have the capacity to "think" or "know" [if they will turn into butterflies]? | Follow up questions:
What exactly is consciousness (What makes us conscious exactly, compared to perhaps a butterfly)?
Where does the assumption that a caterpillar does not have the capacity to "think" or "know" come from? Is it their brain size?
Also I think I read somewhere that a person who had, a significant a... | askscience | http://www.reddit.com/r/askscience/comments/v13ye/what_exactly_makes_us_think_or_know_in_the_brain/ | {
"a_id": [
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"text": [
"Hi! I'm not a neuroscientist but I am a molecular biologist, so I have some vague insights and am also very interested in this topic. I just answered that caterpillar thread. My answer to it may help in your 2nd question ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Consciousness#Biological_function_and_evolution"
],
[]
] | |
f60fl2 | What was it like to fight in the Soviet admt during WW2? | I often hear many different accounts. Some saying it was a complete hell and others saying it was like fighting for any other army. A few specifics were how brutal was the Soviet Army? Was the average soldier treated well and put into less deadly strategies or was it how it was depicted in popular media?
(*Soviet Army ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/f60fl2/what_was_it_like_to_fight_in_the_soviet_admt/ | {
"a_id": [
"fi1yxld"
],
"score": [
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"text": [
"I have a few responses on Soviet military culture you can find [here](_URL_0_)."
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/wiki/profiles/georgy_k_zhukov#wiki_military_culture"
]
] | |
1xq85a | Why was succession to the Ottoman throne "open" and not decided by the order of birth? Why did it often involve fratricide? | I've read that many of the ottoman sultans such as Mehmed II often ended up having to kill their brothers. Why did the previous sultan not not pick his successor rather than leaving the empire prone to internal strife? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1xq85a/why_was_succession_to_the_ottoman_throne_open_and/ | {
"a_id": [
"cfds99a"
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"text": [
"So, Ottoman succession is an extremely confusing nuanced evolution spanning six centuries. In 1261, the creation of the Ottoman polity, the Ottoman state used unigeniture to determine the new leader of the polity after the death of a sultan. As y... | [] | [] | [
[]
] | |
54fvn2 | Did General Douglas MacArthur have any significant redeeming aspects as a military commander in WWII and Korea? | It seems to me that MacArthur is more often castigated than not for his mishandling of the defense of the Philippines at the start of the Pacific War, unimpressive management of the New Guinea Campaign, inability to get along with the Navy, and for his obsessive focus on the liberation of the Philippines, not to mentio... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/54fvn2/did_general_douglas_macarthur_have_any/ | {
"a_id": [
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"Well, the last one (insubordination) is why he ended up getting fired, so they can be discounted, I think. And I really don't think you can hold the artillery and air restrictions in Manilla against him. Such concerns are rightfully the purview o... | [] | [] | [
[]
] | |
4dzlw1 | Why didn't Hitler just launch Operation Sealion while the Battle of Britain was happening? Wouldn't the RAF have been too busy to intervene with the landings? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4dzlw1/why_didnt_hitler_just_launch_operation_sealion/ | {
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"text": [
"Because an invasion is a *huge deal*. To be a bit crass, it's not like Civilization or Europa Univeralis or something where you drop some \"army\" unit onto the enemy territory... | [] | [] | [
[],
[],
[],
[]
] | ||
62lyxw | if the air scatters all the colours away so we can only see the blue light, why doesnt looking through *more* air at sunset look more blue? | I've never quite grasped this one, why the air seems to have different effects on wavelengths when I look through different amounts of it. I would have expected it to have the same effect only in greater intensity when I look at something through more air. Can anyone please explain? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/62lyxw/eli5_if_the_air_scatters_all_the_colours_away_so/ | {
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"text": [
"Good thinking, but... it's the other way around. The colour that gets scattered the most is blue. That's why the air is predominantly blue. The blue comes from all directions (is scattered the most). Now, when light passes t... | [] | [] | [
[],
[]
] | |
119u4y | the potential scottish independence from the uk. both sides (pro/con) and the history of the issue. (curious american). | Title really summarizes the idea of this thread. I first heard of this issue today on the frontpage and I am really curious on to how this issue came to be. I would love to see discussion on how the independence from the UK would be beneficial or detrimental to Scotland. Thank you!
EDIT: Please don't downvote opinions... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/119u4y/eli5_the_potential_scottish_independence_from_the/ | {
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"There is a great video on YouTube (sorry for no link) on the history of how Scotland ended up joining with England to form the UK. Basically they wanted colonies when everyone in ... | [] | [] | [
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"http://www.acorn-ps.com/web/image/content/map/nns_map.jpg",
"http://www.acorn-ps.com/web/image/content/map/sns_map.jpg"
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3gu453 | why when i'm trying to fall asleep do i begin reliving cringe-worthy moments in my past? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3gu453/eli5_why_when_im_trying_to_fall_asleep_do_i_begin/ | {
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5xu4i2 | taking a second mortgage out on a home or property. | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5xu4i2/eli5_taking_a_second_mortgage_out_on_a_home_or/ | {
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"text": [
"In brief: They are a secured loan, which means they use the borrower’s home as security. If you fail to pay back your loan they'll come after your house.",
"Say you bought a ho... | [] | [] | [
[],
[],
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1yz2c2 | how are athletes so much faster and better then compared to 10+ years ago? | How is it in 1988 the fastest 100 meter was a 9.79 with the use of steroids but 26 years later, Usain Bolt runs a 9.58 clean? What changes have been made to make athletes better? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1yz2c2/eli5_how_are_athletes_so_much_faster_and_better/ | {
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"It's a good question, but Usain Bolt is not a very good example. Bolt is peerlessly bioemechanically engineered for running, there is simply no other human is this world who can come close to him. His height, the length of h... | [] | [] | [
[],
[]
] | |
j2o7z | explain to me please, like i'm 5, what the hell is going on in the movie primer. | Cause that shit's *confusing*! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j2o7z/explain_to_me_please_like_im_5_what_the_hell_is/ | {
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"text": [
"_URL_0_ The best I can do.",
"Way too tired to explain but this handy diagram should help \n\n_URL_0_\n\nIf you havent watched it at least 3 times then no words said here should aid you :)",
"... | [] | [] | [
[
"http://xkcd.com/657/"
],
[
"http://en.wikipedia.org/wiki/File:Time_Travel_Method-2.svg"
],
[]
] | |
18x6e6 | why can humans live longer now than we could, say, 500 years ago? | What changed? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/18x6e6/why_can_humans_live_longer_now_than_we_could_say/ | {
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"text": [
"Advances in medicine. Vaccination, hygiene, and aseptic techniques are big factors why people don't die out as quickly as before.",
"Medicine, in detecti... | [] | [] | [
[],
[],
[],
[],
[]
] | |
3ky4l3 | why are wedding dresses so expensive? | My mom is watching a dress show in the other room, and I think the cheapest dress I heard was around two thousand dollars. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3ky4l3/eli5_why_are_wedding_dresses_so_expensive/ | {
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"[Basically](_URL_0_), expensive materials, and lots of labor (relative to most clothing items) but also a high willingness to pay (meaning people are far more willing to pay a lot for a wedding than bas... | [] | [] | [
[
"http://www.npr.org/sections/money/2011/08/05/138760908/why-are-wedding-dresses-so-expensive"
],
[],
[]
] | |
1danul | When I look in the mirror and move my eyes left to right, why do they look like they're not moving at all? | Alright, so this may sound a bit odd and it's hard to explain, but I'll try my best. A friend showed this to me last week and I was blown away and I'm interested in what's behind it. If you wanna test this you should have another person look at your eyes in the mirror too:
1) Look into your own eyes in the mirror.
2) ... | askscience | http://www.reddit.com/r/askscience/comments/1danul/when_i_look_in_the_mirror_and_move_my_eyes_left/ | {
"a_id": [
"c9ok92x"
],
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],
"text": [
"It's called [saccadic masking](_URL_0_). \nWhen you move your eyes you actually don't see anything but your brain replaces the blackness with the last image you see \nIt is the reason that you think the first second when you look at your watch... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Saccadic_masking"
]
] | |
1w7iwy | The Differing Economies in England, Spain, and the Netherlands in the 17th Century? | Hello all. I'm taking my AP European History midterm tomorrow, and I'm working with some of my peers to create outlines for the possible essay topics. I'm stuck on one of them:
"In the 17th century, England and the Netherlands developed effective capitalist economies, while Spain did not. Why did the economies develo... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1w7iwy/the_differing_economies_in_england_spain_and_the/ | {
"a_id": [
"cezedak"
],
"score": [
3
],
"text": [
"You'll want to talk about the differences in how England and Netherlands treated trade and their colonies. You may want to consider the role the Jewish banking families had on all three, as well as the more general motivation for expansion betwee... | [] | [] | [
[]
] | |
1wsuus | Why is Russian word Kiev and not Ukrainian form Kyiv used in English? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1wsuus/why_is_russian_word_kiev_and_not_ukrainian_form/ | {
"a_id": [
"cf5rwln"
],
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"text": [
"The Canadian Broadcast Corporation online news opinion:\n\n_URL_2_\n\n\n > For more than five years, _URL_3_ referred to the capital of Ukraine as Kyiv instead of Kiev. We adopted this version at the same time the Canadian Press switched to Kyiv... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Kiev#Kiev_or_Kyiv.3F",
"http://www.infoukes.com/faq/kyiv-2",
"http://www.cbc.ca/news2/indepth/words/kiev-or-kyiv.html",
"CBC.ca",
"http://www.infoukes.com/faq/kyiv-2/"
]
] | ||
220j2x | the sickle cell and why it is in black people and why it makes them pass out, and what does it do? what is the sickle cell? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/220j2x/eli5_the_sickle_cell_and_why_it_is_in_black/ | {
"a_id": [
"cgi604m"
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"score": [
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"text": [
"As said before, sickle cell is caused by a mutation for gene for hemoglobin in red blood cells. People with sickle cell anemia have 2 mutated alleles while those with \"sickle cell trait\" have only one mutated allele and one normal allele. \n\nT... | [] | [] | [
[]
] | ||
31qmm8 | If sea-level suddenly got raised by 8km, would you still need oxygen to breathe on the top of Mt. Everest? | askscience | http://www.reddit.com/r/askscience/comments/31qmm8/if_sealevel_suddenly_got_raised_by_8km_would_you/ | {
"a_id": [
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"text": [
"You wouldn't need additional oxygen supplies if the atmosphere was displaced by the sea level rise. However, the atmosphere would be slightly thinner because the rise would increase the earth's radius by 8km from the 6371km ... | [] | [] | [
[],
[]
] | ||
396q0e | Did the concept of Italy endure even when Italy was politically fragmented? | It's common knowledge (i.e. in the encyclopedia) that after the fall of the Western Roman Empire and subsequent barbarian invasions, the land that was once Roman Italy became a collection of independent political units, many of which would eventually bring about the Renaissance, and also that the nation reunited in the... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/396q0e/did_the_concept_of_italy_endure_even_when_italy/ | {
"a_id": [
"cs13mm1"
],
"score": [
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],
"text": [
"Italy remained a concept from the fall of the Roman Empire up through the Risorgimento. To what extent different parts of what are modern day Italy (plus some parts that are in modern-day Slovenia) considered themselves Italian very likely varied... | [] | [] | [
[]
] | |
1luw9p | why isn't there a national conversation about the mass genocide of the native americans? it seems to just be a glazed over part of our history. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1luw9p/eli5_why_isnt_there_a_national_conversation_about/ | {
"a_id": [
"cc2zea9"
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"score": [
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"text": [
"Because genocide is mass intentional murder. What happened to the majority of the native americans occurred between the time of the first explorers and the pilgrims. The first explorers brought diseases with them that the native americans had n... | [] | [] | [
[]
] | ||
1bqcr3 | how does ballistic missile defense system work? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1bqcr3/eli5how_does_ballistic_missile_defense_system_work/ | {
"a_id": [
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"text": [
"Yo dawg, we heard you like missiles, so we're shooting missiles at your missiles so you can... Yeah nevermind that.\n\nBut basically that's what's done, at least with an antiballistic missile system. ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Patriot_missile",
"http://en.wikipedia.org/wiki/Phalanx_CIWS"
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[],
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2hij7i | when i eat a bunch of sour fruits, for example sour apples or a lemon, why are my cheeks and forehead sweating so much? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2hij7i/eli5_when_i_eat_a_bunch_of_sour_fruits_for/ | {
"a_id": [
"cksz7r5"
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"score": [
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"text": [
"I never experienced this myself but was intrigued as to why, so I did some research and found this answer.\n\n > In general, sweating is caused by too much heat, even if you're not aware of the heat. This can happen if the bowel moves and so rais... | [] | [] | [
[
"http://biology.stackexchange.com/questions/5156/does-sour-food-cause-sweating"
]
] | ||
2oqc0t | why does youtube say a video has 301+ views during the first few hours of a new video posted? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2oqc0t/eli5why_does_youtube_say_a_video_has_301_views/ | {
"a_id": [
"cmpix26",
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"text": [
"At 300 YouTube holds the count to make sure it's getting legit views. Sometimes two or more counts get in at the same time so often it's caught on 301",
"This has been covered [here](_URL_0_)\n\nBa... | [] | [] | [
[],
[
"http://youtu.be/oIkhgagvrjI"
],
[
"http://m.youtube.com/watch?v=oIkhgagvrjI"
]
] | ||
lxmb9 | eil5: greek economic crisis and its ramifications for germany and the eurozone | I read a lot of economic blogs but when it comes to the EU economic situation, I feel like I'm trying to understand the causes of WWI -- I'm looking for a simple narrative but there isn't one (except the "Greeks are lazy takers of EU money," which I learned is demonstrably untrue based on average working hours.) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/lxmb9/eil5_greek_economic_crisis_and_its_ramifications/ | {
"a_id": [
"c2wgt61",
"c2wgt61"
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"score": [
3,
3
],
"text": [
"Greece has a history of poor financial management, which meant they tended to inflate away their debt, which meant that they had to borrow at relatively high rates. When they joined the EU and Euro they agreed to manage the... | [] | [] | [
[],
[]
] | |
1uy5o5 | During the middle ages, what was the common way to travel from England to Acre/Jerusalem, and how long did it take? | I've been trying to find out how a small group of individuals would travel in approx. 1190. From my research on Google I've looked at maps from the third crusade which shows both boat and land travel, but I'm not sure if someone not involved in the crusades would take those routes or not. Additionally, I've not been ab... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1uy5o5/during_the_middle_ages_what_was_the_common_way_to/ | {
"a_id": [
"cemy8ss"
],
"score": [
22
],
"text": [
"It depends on time and how wealthy you were - we'll stick to the crusading period from ca.1190-ca.1290.\n\nIf you were poor, you walked the whole way, across France, through the Alps, down through the Balkans into the Byzantine Empire, across As... | [] | [] | [
[]
] | |
9zg740 | why do your legs turn red when taking a shower? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9zg740/eli5_why_do_your_legs_turn_red_when_taking_a/ | {
"a_id": [
"ea8whut"
],
"score": [
6
],
"text": [
"The hot water heats up the capillaries under your skin which makes them fill with more blood - Warmth causes blood vessels to dilate, which causes more blood to near the surface of the skin. When the body is warm, more blood is able to near the s... | [] | [] | [
[]
] | ||
1pn6zn | what happens to a recovered opiate addict if they require opiates for anesthesia or pain management? | What happens to someone who has recovered from an opiate dependency and then needs surgery or pain management? Will it force a relapse? are there any alternatives?
Thanks | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1pn6zn/eli5_what_happens_to_a_recovered_opiate_addict_if/ | {
"a_id": [
"cd40d04"
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"text": [
"This depends on the hospital, I think, and their procedures.\n\nIf someone has a known opiate addiction or dependency, pain management specialists would be consulted to carefully manage the case. The usual method would be to avoid using potential... | [] | [] | [
[]
] | |
5atq17 | what exactly is human trafficking? | I've been browsing social media and reading stuff and this is something the comes up from time to time. What is it exactly? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5atq17/eli5_what_exactly_is_human_trafficking/ | {
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"text": [
"Human trafficking is the illegal trade in people for the purposes of commercial sexual exploitation and other form... | [] | [] | [
[],
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[],
[],
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43dfmd | i visited a country recently where the exchange rate was like 1:45... and the average salary over there is like $10k... does that make them poor? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/43dfmd/elif_i_visited_a_country_recently_where_the/ | {
"a_id": [
"czhf51p"
],
"score": [
10
],
"text": [
"Kind of, but not necessarily. It means that if they took their salary, exchanged it for US dollars, and tried to spend them in the US, they'd be poor.\n\nBut presumably everything is cheaper in that country as well, so that a $10k salary might a... | [] | [] | [
[]
] | ||
dug1es | Over the years, I've heard it said that the US dropped more bombs on N. Vietnam than all of WW2. Did the US seriously consider using nuclear weapons as well? If so, what stopped their use? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dug1es/over_the_years_ive_heard_it_said_that_the_us/ | {
"a_id": [
"f76nq1h"
],
"score": [
8
],
"text": [
"There were some within the US policy establishment that advocated for the use of tactical nuclear weapons in Vietnam. The reasons to oppose such a policy were many. From a political standpoint, it would have alienated the already-alienated Americ... | [] | [] | [
[]
] | ||
223t8i | will the us financial economy ever recover to the same degree of the mid-2000 collapse? interest rates on bank cd's etc. is it possible to surpass previous levels of financial security somehow? | I'm wondering if at our current "progress" there is any turning back to "good ol' days" or have we evolved past being able to go back at this stage? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/223t8i/eli5_will_the_us_financial_economy_ever_recover/ | {
"a_id": [
"cgj1yhy",
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"score": [
4,
7,
2
],
"text": [
"We're already setting new highs in numerous areas. Interest rates are looking to rise as the Fed scales back their efforts to keep them low.\n\nThe US economy is in great shape and we are still not ful... | [] | [] | [
[],
[
"http://www.investopedia.com/articles/06/interestaffectsmarket.asp"
],
[
"http://www.economonitor.com/blog/2013/08/why-the-us-economy-wont-fully-recover/"
]
] | |
ax53ey | If the Earth moves far and long enough from the sun, would the core freeze? And if so, how long would it take? | askscience | https://www.reddit.com/r/askscience/comments/ax53ey/if_the_earth_moves_far_and_long_enough_from_the/ | {
"a_id": [
"ehrjtnp",
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21,
2
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"text": [
"The internal heat budget of the Earth is not influenced appreciably by solar radiation. Rocks are generally not great conductors, so the incoming solar radiation only effects the temperature down to a few 10s of meters belo... | [] | [] | [
[
"http://science.sciencemag.org/content/sci/299/5613/1675.full.pdf",
"https://en.wikipedia.org/wiki/Earth%27s_internal_heat_budget#Radiogenic_heat",
"https://en.wikipedia.org/wiki/Earth%27s_internal_heat_budget#Primordial_heat",
"https://www.sciencedirect.com/science/article/pii/S0040195198000262",... | ||
3vqhks | what's the difference between a screw gun and an impact driver? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3vqhks/eli5_whats_the_difference_between_a_screw_gun_and/ | {
"a_id": [
"cxpsude",
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"score": [
2,
2
],
"text": [
"If you're talking about a regular drill and an impact wrench, the difference is that a traditional drill rotates at a constant speed. Whereas, impact wrenches literally use small, repeated impacts and higher torque to do the... | [] | [] | [
[],
[]
] | ||
997nn2 | What does the amount of blades do for a airplane or helicopter? | askscience | https://www.reddit.com/r/askscience/comments/997nn2/what_does_the_amount_of_blades_do_for_a_airplane/ | {
"a_id": [
"e4mihev"
],
"score": [
6
],
"text": [
"assuming the blade profile does not change, the increased number of blades will provide more lift or thrust per revolution, but consume more power. We like t use more blades or a larger profile to keep the tip velocity down, going sonic uses exc... | [] | [] | [
[]
] | ||
6vvokn | how do flea collars work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6vvokn/eli5_how_do_flea_collars_work/ | {
"a_id": [
"dm3ehpk",
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"score": [
17,
5,
3
],
"text": [
"Flees travel from the body to the eyes and mouth to get water, so if you put band of something that kills fleas along the route they die. ",
"Flea collars are actually fairly ineffective. You're es... | [] | [] | [
[],
[],
[
"https://www.reddit.com/r/explainlikeimfive/comments/1l30bw/eli5_how_do_flea_collars_work/",
"https://www.reddit.com/r/explainlikeimfive/comments/2k5tf7/eli5_how_do_flea_collars_work/"
]
] | ||
buk5c2 | how come mammals’ fur doesn’t come in a wider array of colors like green, blue, pink or purple? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/buk5c2/eli5_how_come_mammals_fur_doesnt_come_in_a_wider/ | {
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"score": [
764,
42,
8,
2,
733,
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2,
7
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"text": [
"The only reason reptiles like snakes are brightly colored is to alert predators that th... | [] | [] | [
[],
[],
[],
[
"https://www.youtube.com/watch?v=pyhULLXLUDw"
],
[
"https://www.youtube.com/watch?v=pyhULLXLUDw"
],
[],
[
"http://i.imgur.com/QCqfkS7.jpg"
],
[
"https://animals.sandiegozoo.org/sites/default/files/inline-images/mandrill_male.jpg",
"https://en.wikipedia.org/wiki/... | ||
ahz8bl | Why isn't metastatic cancer contagious if it's technically contagious within the body? | askscience | https://www.reddit.com/r/askscience/comments/ahz8bl/why_isnt_metastatic_cancer_contagious_if_its/ | {
"a_id": [
"eejq3pw"
],
"score": [
17
],
"text": [
"Cancer is able to survive in your body in part because the biomarkers are the same as your cells. You have defenses against cancer, but if that fails the cancer can spread through your lymphatic system.\n\nOutside of the body, cancer cells are u... | [] | [] | [
[]
] | ||
74c0gg | if nuclear fallout is such a huge concern. how are nations able to test nuclear weapons within their borders. | If it's because it's done in remote places. Does that mean areas far away from major cities likely to be attacked are safe?
| explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/74c0gg/eli5_if_nuclear_fallout_is_such_a_huge_concern/ | {
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2,
18,
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"text": [
"Largely countries do their testing now underground, which limits the amount of fallout. Fallout is about radioactive particles getti... | [] | [] | [
[],
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[],
[
"https://en.wikipedia.org/wiki/Partial_Nuclear_Test_Ban_Treaty"
],
[],
[
"http://blog.nuclearsecrecy.com/wp-content/uploads/2014/02/1986-OakRidgeFallout-ORNL-6252.jpg",
"http://blog.nuclearsecrecy.com/wp-content/uploads/2013/08/Fallout_Map_3-23-1963-Saturday-Evening-Post.jpg",
... | |
7xr7ne | How is an “increased risk of cancer” actually measured? | The news today showed an article regarding processed food being shown to “increase to risk of cancer by 12%” (or words to that effect).
How do scientists measure the increased risk of something?? | askscience | https://www.reddit.com/r/askscience/comments/7xr7ne/how_is_an_increased_risk_of_cancer_actually/ | {
"a_id": [
"dub5o4r"
],
"score": [
2
],
"text": [
"As part of the scientific process researchers use control groups. Control groups are as close to the demographic of the test group as possible, only absent the variable to be tested. They then measure instances of the risk in both groups, and co... | [] | [] | [
[]
] | |
50wu8q | How was the myth that people in the middle ages believed the earth was flat, started? | The Greeks had calculated the earth's circumference hundreds of years before, thus proving the earth was round, yet most people believe the myth that everyone back then believed the earth was flat. How did this happen? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/50wu8q/how_was_the_myth_that_people_in_the_middle_ages/ | {
"a_id": [
"d77u3e1"
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"score": [
9
],
"text": [
"Not only did the Greeks know the earth was round and estimate the earth's cirumference, Arab astronomers managed to estimate the earth's diameter roughly accurately in the 9th century AD. Ahmad al-Farghani (c. 850 AD) observed that the earth's ro... | [] | [] | [
[]
] | |
1mwq2n | TATA Box and transcription direction? | Hey all,
So it is my understanding that a TATA box is upstream of the transcription site by ~20-30 BP. Since RNA is synthesized in the 5` to 3` direction, wouldn't the TATA box exist on the 3` strand?
I ask this because my professor posted a picture of double stranded DNA with a labeled TATA section and several ar... | askscience | http://www.reddit.com/r/askscience/comments/1mwq2n/tata_box_and_transcription_direction/ | {
"a_id": [
"ccdf03o"
],
"score": [
5
],
"text": [
"Your description is correct but you are not interpreting it correctly. The TATA box is \"upstream\", ie towards the 5' end. Transcription would start about 25 bp \"downstream\", ie 3' of the TATA box on the same strand. "
]
} | [] | [] | [
[]
] | |
3krx9f | What is the historicity of the writing of the Quran? | I looked through the FAQ for this topic and while there are similar questions asked and information related to this question written, there doesn't seem to be anything about this question specifically.
The religious interpretation of the writing of the Quran is that God, through an angel, revealed the text word-for-w... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3krx9f/what_is_the_historicity_of_the_writing_of_the/ | {
"a_id": [
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"score": [
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"text": [
"As the story goes, Muhammad first received communication from the Angel Gabriel in 610. He then did not receive another communication for quite some time, then he started receiving Qur'anic verses on a regular basis until his death.\n\nVerses wer... | [] | [] | [
[
"https://www.rawstory.com/2015/08/carbon-dating-suggests-worlds-oldest-koran-is-even-older-than-the-prophet-muhammad/"
]
] | |
4ez71a | why are our veins sometimes flush with the skin, while other times they are raised? | Especially around the forearm/back of hand, why do our veins switch like this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ez71a/eli5_why_are_our_veins_sometimes_flush_with_the/ | {
"a_id": [
"d24lv2r"
],
"score": [
2
],
"text": [
"When your body is warm and trying to cool down, it can do so by expanding your vessels near the surface of the skin, promoting release of heat to the environment. If you are extremely cold, the vessels near your skin constrict to help conserve he... | [] | [] | [
[]
] | |
1r42on | Has there ever been an example of a pre-modern army or nation going to war primarily for humanitarian reasons? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1r42on/has_there_ever_been_an_example_of_a_premodern/ | {
"a_id": [
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"score": [
4,
15,
30,
8
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"text": [
"What exactly do you mean by \"humanitarian reasons\"?",
"Note: This is not a historical answer but important clarification for understanding the question.\nYou have to be ver... | [] | [] | [
[],
[],
[
"http://www.metu.edu.tr/~utuba/Finnemore.pdf"
],
[
"http://en.wikipedia.org/wiki/Cambodian%E2%80%93Vietnamese_War",
"http://www.sss.ias.edu/files/pdfs/Walzer/TriumphJustWarTheory.pdf"
]
] | ||
1u1hgw | How many Spaniards actually moved to and settled in Spanish possessions in the New World? | Spain's involvement in the Americas seems to mainly be conquest (Aztecs, Incans, etc.) Was there anything resembling the type of colonization seen in America's thirteen colonies? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1u1hgw/how_many_spaniards_actually_moved_to_and_settled/ | {
"a_id": [
"cedxyaq"
],
"score": [
5
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"text": [
"According to Jose C. Moya in The Oxford Handbook of Latin American History, there were about one million Spanish immigrants and about half a million Portuguese immigrants to their respective possessions in the Americas (8). According to J.H. Ell... | [] | [] | [
[]
] | |
aph9qu | Did teenager pregnancy rates rise with the new availability of cars in the 1920s? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/aph9qu/did_teenager_pregnancy_rates_rise_with_the_new/ | {
"a_id": [
"eg9da14"
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"score": [
72
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"text": [
"/u/chocolatepot covers some of this in her [How common were flappers in the Roaring Twenties](_URL_1_) and in previous answers linked in that one. \n\nI can’t precisely say if it did or didn’t raise the pregnancy rates slightly, but the importan... | [] | [] | [
[
"https://old.reddit.com/r/AskHistorians/comments/8a74w1/how_common_was_it_for_white_female_slave_owners/dwxxb98/",
"https://www.reddit.com/r/AskHistorians/comments/89rptw/how_common_were_flappers_during_the_roaring_20s/",
"https://www.reddit.com/r/AskHistorians/comments/7anfdx/what_did_guys_do_to_expr... | ||
7bi477 | Paratroopers that didn't need parachutes | I recall reading about a group of soldiers that were to be deployed in some jungles around ww2 or Vietnam. They were known for their fearlessness but prior to the jump they didn't know they'd be using parachutes. They had just asked for the pilot to be flying low when they jumped out.
Who was this group of soldiers? S... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7bi477/paratroopers_that_didnt_need_parachutes/ | {
"a_id": [
"dpimbks"
],
"score": [
15
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"text": [
"In the versions of that story I'm most familiar with the potential paratroops are Gurkhas. John Masters was a British officer whose first posting was to the 2nd Battalion of the 4th Prince of Wales's Own Gurkha Rifles, in his 1956 autobiography ... | [] | [] | [
[]
] | |
3td055 | if humans are 80% water, why are we classified as carbon-based? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3td055/eli5_if_humans_are_80_water_why_are_we_classified/ | {
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15,
61,
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"text": [
"The important chemical and structural components are based on carbon-centric molecules.\n\nThe water is just cell filler. It adds volume and acts as a solvent for liquid chemist... | [] | [] | [
[],
[],
[],
[]
] | ||
1xd5m1 | how can redbull and monstersponsor so much sport things, it feels like everybody is sponsored by them | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1xd5m1/eli5_how_can_redbull_and_monstersponsor_so_much/ | {
"a_id": [
"cfa99ye"
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"score": [
4
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"text": [
"They have a lot of money and want to have advertisements around their biggest demographic."
]
} | [] | [] | [
[]
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8btaab | In the late Roman Republic and early Empire, we see many similar busts of nobles, all with the same short cut and clean shaven face, but by the time we get to the Reign of Marcus Aurelius, long loose curls and full beards start to become a trend. How did this happen? Where did the fashion come from? | The Romans had an obsession with displaying virtue; in the later Republic, young successful men would order busts that made them seem older, more wrinkled, as age was a sign of wisdom. Augustus may have changed the trend of worshiping the past by introducing youthful hopeful traits into his busts and statues (most nota... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8btaab/in_the_late_roman_republic_and_early_empire_we/ | {
"a_id": [
"dx9ne9b"
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"It became much more common around the time of the Punic Wars and thereafter (as Rome was expanding, integrating and becoming more and more of a regional hegemon) to have Greek tutors teach upper-class Romans. This gave them a more refined and He... | [] | [] | [
[]
] | |
qdlzv | When a neuron dies, how does the replacement neuron re-establish the connections of the dead neuron? | askscience | http://www.reddit.com/r/askscience/comments/qdlzv/when_a_neuron_dies_how_does_the_replacement/ | {
"a_id": [
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"text": [
"Any \"replacement neuron\" generally doesn't re-establish the connections, but then there's generally no such thing as a replacement neuron. \n\nNeurogenesis is very limited and occurs in the subgranule zone of the hippocampus integrating in the... | [] | [] | [
[]
] | ||
gocej | Polyphasic Sleep Cycle | Hello guys, I normally just read but I've always been interested in the polyphasic sleep schedule and I was wondering if you guys might be able to give me a good unbiased view since everywhere I look I see "it's awesome!" or "we think it could be horrible because you endure sleep deprivation."
I'm a college student an... | askscience | http://www.reddit.com/r/askscience/comments/gocej/polyphasic_sleep_cycle/ | {
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"One of my friends has been doing this off and on for about a year now. I can't really tell you the health risks/benefits for it, but I can tell you a little about it.\n\nFirst, what you read is true abo... | [] | [] | [
[],
[
"http://www.stevepavlina.com/blog/2005/10/polyphasic-sleep/"
],
[]
] | |
2ic7yh | If our universe were totally empty except for two atoms, would the two eventfully collide due to gravity? | Since gravity is just the attraction matter with mass to each other? Or am I defining gravity wrong. | askscience | http://www.reddit.com/r/askscience/comments/2ic7yh/if_our_universe_were_totally_empty_except_for_two/ | {
"a_id": [
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"https://www.youtube.com/watch?v=3MNXn9YEyw8",
"http://www.reddit.com/r/askscience/comments/2ic7yh/if_our_universe_were_totally_empty_except_for_two/cl14rje"
],
[],
[],
[],
[],
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3d0091 | if colds are passed on by an infected creature, how did the first creature get it? | If you get a cold from a contagious creature, how did the first creature start the spread? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3d0091/eli5_if_colds_are_passed_on_by_an_infected/ | {
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"text": [
"We're not really sure how viruses started. A virus is basically a chunk of DNA (or RNA) on it's own that can break into living cells and take over those cells to make it produce more viruses. Nobody'... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Viral_evolution"
],
[]
] | |
4jxoir | What type of "business school" training did people get in communist countries? | A friend currently in business school asked me this question, so I figured I'd ask what was out there about Soviet/Chinese business school-equivalent education.
If a communist country doesn't have "free enterprise" like a capitalist country, then what kind of training does their business class undergo? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4jxoir/what_type_of_business_school_training_did_people/ | {
"a_id": [
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"text": [
"There was a recent thread on this: [What did economics classes look like in communist countries, particularly in the USSR?](_URL_0_)\n\nExcerpting the top answer by /u/suchacleverguy:\n\n > ... the focus of their curriculum was much more \"busin... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/3wolok/what_did_economics_classes_look_like_in_communist/"
]
] | |
8s2wmm | why do suntans start to fade? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8s2wmm/eli5_why_do_suntans_start_to_fade/ | {
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"text": [
"Because you’re constantly shedding the damaged tanned skin cells with new non tan skin cells",
"If you rub your arm you get little black \"eraser dirt\", that is dead skin.\n\nThis shedding of dead skin happens naturally... | [] | [] | [
[],
[]
] |
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