q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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djj4eb | why is it that people with alzheimer's can often hold a conversation and their language but can't remember or don't know answers to basic questions? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/djj4eb/eli5_why_is_it_that_people_with_alzheimers_can/ | {
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"OP's question rephrased is essentially \"why does brain damage sometimes have an effect on memory and not on cognitive function.\"\n\nWhich I answered before in a previous post.\nSee here:\n\n_URL_0_",
"Early alzheimer a... | [] | [] | [
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"https://www.reddit.com/r/explainlikeimfive/comments/d4a4q8/eli5_how_can_people_who_have_suffered_trauma_lose/f091r8e?utm_medium=android_app&utm_source=share"
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owh4c | what would happen if the apollo rocket missed the moon? | I'm just curious if anyone knows. What was the contingency plan if an Apollo rocket overshot the moon? Was this even a concern? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/owh4c/eli5_what_would_happen_if_the_apollo_rocket/ | {
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"There are other factors that have to be considered. Does the rocket have enough momentum to overcome the moon's gravity? If not then you will likely orbit the moon until you crash from not being able ... | [] | [] | [
[],
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"http://watergate.info/nixon/moon-disaster-speech-1969.shtml"
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[
"http://en.wikipedia.org/wiki/J002E3"
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1a79pg | what has happened to this subreddit? | I apologize for what I'm sure will seem like a whiny, complaining self-post... But this subreddit is named, "Explain like I'm **five**. Lately, all new posts have been treated like 'r/askreddit' posts, with regular explanations *not* geared toward five-year-olds. I want this subreddit to experience a return to form, wh... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1a79pg/eli5_what_has_happened_to_this_subreddit/ | {
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"Are you thinking about when people takes their time to explain the universe with a love of language and metaphor... | [] | [] | [
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achbs0 | Women actively participated in the Spanish Civil War. Just how exceptional were female soldiers at the time? Were there regional differences in their roles? How accepted were they by male colleagues? | I took a class on the civil war a while back, and the strong female presence was mentioned (among others the *Mujeres libres*) - as soldiers but also in many other roles. At the same time I remember that despite this, women were often not accepted in these new gender roles and that there continued hierarchies eg betwe... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/achbs0/women_actively_participated_in_the_spanish_civil/ | {
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"text": [
"[I answered a question](_URL_0_) touching on both *Mujeres Libres* and the *milicianas* a couple of months back, but it sounds like it is covering very similar ground to your class discussion and there is certainly plenty of room for further cont... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/9u2z7v/how_did_the_public_of_other_european_nations_and/e91cjf7/?context=3"
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18q1w0 | from an evolutionary stance, why are humans bereft of basic defenses:claws, canines, thick hide..and instead runs with diverse body types, no fur, and exposed vital organs? | I accept evolution in its basic and complex forms, but how did humans dominate the jungle without even being able to hold their breath for more than two minutes, or getting a cold after every storm? Research tells me that the subconscious invested more time in perfecting precision and problem solving, but I can't help ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/18q1w0/eli5_from_an_evolutionary_stance_why_are_humans/ | {
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"A common misconception about evolution is that it should \"improve things\". \n\nIn reali... | [] | [] | [
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j54sj | even if the us doesn't default on its debt, why can't our credit rating be downgraded anyway for coming so close to default? | I've casually been following the politics of the debt ceiling crisis, and from the latest news reports, it looks like a deal will indeed be struck betweens the Dems and Repubs to avoid default and loss of our top credit rating. But I don't understand why it can't be downgraded anyway (by whoever does the ratings). Isn'... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j54sj/eli5_even_if_the_us_doesnt_default_on_its_debt/ | {
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"I believe that it can be, and it was recently discussed that it may happen from one of the three (?) agencys that controls such things. "
]
} | [] | [] | [
[]
] | |
5zikp5 | what does audio mastering exactly do to make music sound better on every sound system? | How do they know which frequencies they need to boost or cut in order to get a well balanced result? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5zikp5/eli5_what_does_audio_mastering_exactly_do_to_make/ | {
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"Audio is first recorded, processed and mixed.\n\nOnce the audio mixer has done her/his job; they will give the mixed audio files to the mastering engineer.\n\nWell mastered audio should sound good on many different systems. ... | [] | [] | [
[],
[]
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3zjwjd | Scythian Controversy | Why the origins of the Scythians are so disputed? The web is full of arguments attributing Hungarian, Mongolic, Turkic, Slavic, Germanic, Celtic and even Israelite origins to the Scythians. Wikipedia says that the Scythians were Iranian, yet I fail to see how exactly the cited sources can prove this theory. Isn’t it eq... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3zjwjd/scythian_controversy/ | {
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" > Why the origins of the Scythians are so disputed?\n\nThey aren't. The web is dark and full of nutters, but the prevailing consensus among academics is that they were Indo-Iranian. Because the Scythians didn't read or wri... | [] | [] | [
[],
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"https://en.wikipedia.org/wiki/Indo-European_languages",
"https://books.google.com/books?id=ST6TRNuWmHsC&lpg=PP1&dq=cambridge%20inner%20asia&pg=PA97#v=onepage&q&f=false",
"https://books.google.com/books?id=-Ue8BxLEMt4C&lpg=PP1&pg=PA58#v=onepage&q&f=false",
... | |
3reduh | What is the surface of the moon made of? | Is it rock? Soil? Something else? | askscience | https://www.reddit.com/r/askscience/comments/3reduh/what_is_the_surface_of_the_moon_made_of/ | {
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"Regolith is the correct term for the material covering the outer surface of the moon. It can be considered as soil, dust and broken rock typically 1.0cm or smaller. It is not bedrock which exists on the surface as well mainly where the regolith i... | [] | [] | [
[]
] | |
ja29w | what does it mean to "re-mortgage" your home? | I thought understanding a mortgage was hard enough... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/ja29w/what_does_it_mean_to_remortgage_your_home/ | {
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"\"re-mortgage\" is not a commonly used term. You could be referring to two different things:\n\n** Refinancing**\n\nYears ago I bought a house at 7% interest, with a mortgage from Bank A. Since then, interest rates have go... | [] | [] | [
[],
[]
] | |
4gjpjq | How did commoners become monarchs? | While small troops of chimps can have their more dominant males, and the same with gorillas and their silverbacks, being a proper King requires more than simply being better at combat compared to your peers. It requires keeping thousands, if not millions, of people in check and obedient to your edicts.
Are there many ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4gjpjq/how_did_commoners_become_monarchs/ | {
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"text": [
"I would question your implied premise that hereditary rule is generally exceptional or regarded as oppressive. Hereditary chieftaincy is known from prehistory and observed in societies all around the w... | [] | [] | [
[],
[],
[]
] | |
23gqv7 | What are the historical origins of Easter? | I understand that today Easter is the holiday associated with the resurrection of Christ. But I have heard of a theory linking Easter with the Mesopotamian goddess of sex and fertility Ishtar (eggs and rabbits as symbols of fertility). This theory also states that with the rise of the Eastern Roman Empire the festival ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/23gqv7/what_are_the_historical_origins_of_easter/ | {
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"text": [
"There is no evidence that Easter is linked to Ishtar, this is a false etymology. Here is a previous [thread on the topic](_URL_0_).",
" > This theory also states that with the rise of the Eastern ... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/1zcckp/are_the_origins_of_easter_within_christianity_or/"
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"http://www.etymonline.com/index.php?term=Easter&allowed_in_frame=0",
"http://books.google.com.au/books?id=yFsw-Vaup6sC&pg=pr54#v=onepage",
"http://www.newadvent.org/cathen/11... | |
8zxfal | why do vehicles with internal combustion engines have to be turned off when fueling to avoid explosions? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8zxfal/eli5_why_do_vehicles_with_internal_combustion/ | {
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"I think there have been cases of static sparks from clothing igniting the gas, but it's extremely rare. Chances a... | [] | [] | [
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mdsqf | If a four story building crushes, who is more likely to live: people on the 1st floor or the 4th? (xpost r/askreddit) | AskReddit wasn't helpful!
Assume noone is allowed to run outside, to the basement etc, so proximity to those is irrelevant.
| askscience | http://www.reddit.com/r/askscience/comments/mdsqf/if_a_four_story_building_crushes_who_is_more/ | {
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"Sad to be cliche, but it depends..\n\nIf the building is crushing under controlled demolition, or if the building was structurally weak and was crushing for example in a quake, then it would most likely collapse in place. Al... | [] | [] | [
[],
[]
] | |
28pywp | how do car dealerships make money during "employee pricing sales"? | If they're selling cars at employee pricing, which I'm assuming is at a minimum low markup (if any) how do car dealerships make money during those sales?
Do the salesmen take reduced commissions for those sales, or is "employee pricing sales" just a fancy way of saying "rip off"? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28pywp/eli5_how_do_car_dealerships_make_money_during/ | {
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"Not surprisingly its all BS. Not only are there at least 2 sets of numbers for the cost of every car they buy manufacturers pay them what is call \"hold back\". So after the dealer sells a car the company sends them a che... | [] | [] | [
[],
[]
] | |
4dg43u | What did Roman Legionaries do in times of peace? | Would they be disbanded or would they continue to guard and patrol? what would happen? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4dg43u/what_did_roman_legionaries_do_in_times_of_peace/ | {
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"I am not an expert on this but I'll give it a go!\n\nUnsurprisingly it depends not only on the time but also the place we are talking about, e.g. a soldier in a relatively peaceful province would have a different experience to someone stationed ... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Mithraism",
"http://vindolanda.csad.ox.ac.uk",
"https://www.penguin.co.uk/books/14537/an-imperial-possession/9780140148220/"
]
] | |
2p3sel | how did real estate segregation shape the history of the city of Detroit? | i always been really interested in detroit and after reading arc of justice i am hungry to learn more, what better from the good people of Detroit | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2p3sel/how_did_real_estate_segregation_shape_the_history/ | {
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"text": [
"Strongly suggest reading Thomas Sugrue he writes extensively about including the building of the 8 Mile Wall\n_URL_1_\nThe Origins of the Urban Crisis: Race and Inequality in Postwar Detroit\n_URL_0_"
]
} | [] | [] | [
[
"http://books.google.com/books/about/The_Origins_of_the_Urban_Crisis.html?id=en6clYj83X0C",
"http://detroiturbex.com/content/neighborhoods/8milewall/index.html"
]
] | |
2ydfhy | A better understanding of the movement of heavy industry and its effects within the Soviet Union during WWII. | Recently I've been reading quite a bit about the Eastern front between Germany and the Soviet Union during the second world war. It has been said that the majority of Soviet industry was based in the western portion of the union. As Operation Barbarossa commenced and German forces closed in on major industrial centers ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2ydfhy/a_better_understanding_of_the_movement_of_heavy/ | {
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"text": [
"Apologies for the rushed response but I'll expand on [an old comment](_URL_0_) to quickly address your points. Let me know if you've any questions on the below and I'll find time to respond to them.\n\nUltimately the evacuation campaign managed t... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/2p6fnm/how_did_the_soviet_union_manage_to_transfer_their_industries_to_the_east_du/cmu662s?context=3"
]
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nwf1i | Are there "dyes" for non-visible wavelengths? | There are various molecules we use to dye things in the visible spectrum, e.g. methyl violet, methylene blue, etc. Are there molecules which can dye something to particular wavelength in the IR or UV spectrum? | askscience | http://www.reddit.com/r/askscience/comments/nwf1i/are_there_dyes_for_nonvisible_wavelengths/ | {
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sfzx1 | How long did it take Columbus to realize he wasn't in Asia? | I can imagine Columbus' situation would have been very confusing, even for a serious explorer. At one point did Columbus realize he wasn't just hitting islands off the coast of Asia, and if fact had hit an entire new continent?
Subsequently, how long did it take to realize the enormity of the Americas, and the enormit... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/sfzx1/how_long_did_it_take_columbus_to_realize_he_wasnt/ | {
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"We can debate the merits of Wikipedia if you want, but here's what his article says:\n\n > Historians have traditionally argued that Columbus remained convinced to the very end... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Christopher_Columbus#Death"
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[],
[
"http://www.smithsonianmag.com/people-places/Presence-of-Mind-A-World-Too-New.html",
"http://en.wikipedia.org/wiki/Book_of_Prophecies",
"http://www.columbusnavigation.com/shd973.shtml"
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[]
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z9ldp | why does this pattern appear when you microwave cd's? image included | _URL_0_ | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/z9ldp/eli5_why_does_this_pattern_appear_when_you/ | {
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"CDs have an aluminum coating that acts as an antenna for the microwave radiation, ionizing particles around the CD and forming glowing plasma and sparks. The radiation causes a chemical reaction which ... | [] | [
"http://imgur.com/dPg1Z"
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[],
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jqqum | Why do we need a Higgs boson to impart mass to particles? | Isn't mass just energy? Or does energy not interact with gravitational fields in the right way? How then could a Higgs particle have a ridiculous energy of 250 GeV (one possibility that hasn't yet been ruled out) if it gives itself mass? | askscience | http://www.reddit.com/r/askscience/comments/jqqum/why_do_we_need_a_higgs_boson_to_impart_mass_to/ | {
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"So there are these things called *bosons.* What they are and now they work aren't important right now; just know that they're a thing.\n\nFour elementary bosons have been conclusiv... | [] | [] | [
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3uhqfi | why is whole wheat flour considered healthier than enriched flour? | Whole wheat floor is supposedly better for humans compared to enriched flour because in the enriching process, vitamins and minerals are stripped from the flour. The FDA requires companies to supplement those lost resources to a certain level. So if the same amount of vitamins and minerals are returned to the final pro... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3uhqfi/eli5_why_is_whole_wheat_flour_considered/ | {
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"1.) Whole grain flour has a higher fiber content. It's much denser in nutrition.\n\n2.) It has a much lower glycemic index rating. This means that it doesn't spike your blood sugar the way a white flour does.\n\n3.) Vitamin content is much higher... | [] | [] | [
[]
] | |
15333a | [Physics] An astronaut leaves earth traveling at 0.9c, comes back, and he's aged less than everyone else. Since he and the Earthlings had identical speeds relative to one another, why is it that his clock experiences time dilation, as opposed to the Earthlings' clocks? | Couldn't we use the astronaut as our reference frame and conclude that the Earthlings should be aging slowly? Is it relevant that the Earth is so much bigger than the astronaut? How would this scenario play out in a universe with nothing but two spaceships, where one rockets away for a while, then comes back, and the... | askscience | http://www.reddit.com/r/askscience/comments/15333a/physics_an_astronaut_leaves_earth_traveling_at/ | {
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"Because the astronaut is not in an inertial reference frame (he accelerates when he turns around to come back) which breaks the symmetry (so there's no basis for claiming the two perspectives are inte... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Twin_paradox"
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10bdwu | Are there any other examples of race specific diseases? | I can think of only Tay Sachs disease for select Jewish populations; sickle cell anemia for certain modern African descendants, and Royal bleeder's disease in the British royal family.
I was wondering if you guys knew of any other examples of inherent genetic diseases that have a high probability of being present certa... | askscience | http://www.reddit.com/r/askscience/comments/10bdwu/are_there_any_other_examples_of_race_specific/ | {
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"There are literally a ton:\n\nYou already mentioned Tay-Sachs, Sickle cell disease, and hemophilia.\n\nA couple more that I can think of off the top of my head...\n\nCystic fibrosis in Europeans, hemochromatosis in Celts, lactose intolerance in A... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Race_and_health"
]
] | |
j1acw | Are we seriously looking at all the possible "man-made" explanations for cancer? Should we be? | It seems like cancer rates are ever-increasing. And I have read that until only a few centuries ago there really wasn't much evidence of people getting cancer.
All the time you hear sketchy people blaming cellphones, cell towers, tupperware container chemicals, lack of ozone layer, our drinking water, etc.
The more... | askscience | http://www.reddit.com/r/askscience/comments/j1acw/are_we_seriously_looking_at_all_the_possible/ | {
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"Not an expert etc. But think about this. We're living longer than we have in the past. Cancer is correlated with age. It seems only natural that as the population pushes to older ages of life (not dying from smallpox, polio,... | [] | [] | [
[],
[]
] | |
9aym0a | where did the misconception that muscle pain after exercise caused by lactic acid originate? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9aym0a/eli5_where_did_the_misconception_that_muscle_pain/ | {
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"text": [
"The whole misunderstanding dates back to a 1922 study by two British scientists, Otto Meyerhoff and Archibald V. Hill. In their Nobel-Prize winning research investigating the energy capabilities of carbohydrate metabolism in skeletal muscle, they... | [] | [] | [
[]
] | ||
1kjytm | what's the difference between stocks, bonds and mutual funds? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1kjytm/eli5_whats_the_difference_between_stocks_bonds/ | {
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"text": [
"A stock is a share of a company. It changes in value as the company does.\n\nA bond is where someone takes out a loan and promises to pay it back with interest. You buy part of the debt so that you get a share of their payme... | [] | [] | [
[],
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18vb8w | Why did the Voortrekkers establish separate republics in South Africa? | When the Voortrekkers left the Cape Colony and headed inland why did they establish separate Boer republics? Why didn't they band together and establish a single republic? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/18vb8w/why_did_the_voortrekkers_establish_separate/ | {
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"c8ib9sh"
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"text": [
"Hoo boy, this is a fairly big one (for me), and I don't have a huge amount of time to properly flesh it out. I'm also not in my office, so I ~~don't~~ [only now] have the ~~important page~~ cites in the Ross/Mbenga/Hamilton edited *Cambridge Hi... | [] | [] | [
[]
] | |
7qoy21 | ¿Is there a reason why there isn't planets with orbits closer to the sun than Mercury? | In many star systems it has been discovered many exoplanets with orbits really close to their stars, a lot of them with orbits way closer than mercury (like tau ceti, or trappist-1). Is there a reason why this doesn't happen in our solar system? | askscience | https://www.reddit.com/r/askscience/comments/7qoy21/is_there_a_reason_why_there_isnt_planets_with/ | {
"a_id": [
"dsrd3xg"
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"text": [
"No there is no real reason why one system or another will have closer in planets or not. It is dictated by the chaotic behaviour (short term close encounters or long term secular variations) of planetary migration which is not very well understoo... | [] | [] | [
[]
] | |
6axdty | What happened to the German WW1 "Paris gun" after the war? | What happened after it fired on Paris? After the war? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6axdty/what_happened_to_the_german_ww1_paris_gun_after/ | {
"a_id": [
"dhjw0fe"
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"text": [
"The Pariskanone was supposed to be turned over to the Allies following the armistice but never was. The design was eventually modified as a railway-gun for use in the East during the Second World War, and this cannon was call \"Big Gustav.\" Her... | [] | [] | [
[]
] | |
3xkhrq | how do film cameras work and how do you edit film? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3xkhrq/eli5_how_do_film_cameras_work_and_how_do_you_edit/ | {
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"text": [
"Old school film editing used to involve physical manipulation of the film. Splicing, compositing, overlays; all of these are terms brought over from the days of analogue editing.\n\nUsing the Hateful 8 as a more modern example; they will shoot th... | [] | [] | [
[]
] | ||
2okptl | why is it difficult for microsoft or other organizations to track down highly wanted hacking groups such as lizard squad, known for turning off the xbox live network and forcing a plane to land? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2okptl/eli5why_is_it_difficult_for_microsoft_or_other/ | {
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"A lot of proxy servers are standing between Microsoft and the hackers. They'd have to gain acces to every single proxy while the hack is going on to figure out where the signal is coming from. By then the hackers have most likely detected there a... | [] | [] | [
[]
] | ||
j3vsy | how many volts and amps are going through a body's nerves when the brain sends signals to move muscles? | Do those figures change according to how fast or how much a muscle is moving? | askscience | http://www.reddit.com/r/askscience/comments/j3vsy/how_many_volts_and_amps_are_going_through_a_bodys/ | {
"a_id": [
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"text": [
"About 110 mV. This is independent of how fast or how much muscle is moving. For more muscle contractions, you send more action potentials.\n\n_URL_0_",
"Note that current only flows *inside* cells, not between them. Wh... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Action_potential"
],
[]
] | |
1c92wr | how come the price of some items can only be seen in the cart and who thought that was a good idea? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1c92wr/how_come_the_price_of_some_items_can_only_be_seen/ | {
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"text": [
"Some manufacturers limit what a retailer can advertise the price of their product at. Constant advertising too low a price can make consumers feel your product is \"cheap.\" Retailers get around this by requiring you put the product in your car... | [] | [] | [
[]
] | ||
1h803r | how come when you tune to a radio frequency that no station broadcasts at, you get static instead of silence? | If no one's broadcasting anything at that frequency, shouldn't you just get silence instead of static since your car/radio isn't picking anything up? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1h803r/eli5_how_come_when_you_tune_to_a_radio_frequency/ | {
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... | [] | [] | [
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iyfi6 | Do animals see each other with a wide array of diversity? | I was thinking to myself how people look so different and how animals all look pretty similar. Do animals see each other as different looking like we people see each other as diverse? | askscience | http://www.reddit.com/r/askscience/comments/iyfi6/do_animals_see_each_other_with_a_wide_array_of/ | {
"a_id": [
"c27p2dm"
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"score": [
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"text": [
"There is an area in the human brain called the [fusiform face area (FFA)](_URL_3_) that is thought to be specialized for human facial recognition (as well as recognizing face-like objects). Damage to this area causes a disorder called prosopagnos... | [] | [] | [
[
"http://abcnews.go.com/Technology/story?id=98209&page=1",
"http://news.nationalgeographic.com/news/2006/02/0203_060203_brain.html",
"http://www.dogbehaviorblog.com/2010/03/dogs-can-recognize-the-faces-of-other-dogs.html",
"http://en.wikipedia.org/wiki/Fusiform_face_area"
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1d63by | Why did Nasa not send the rovers to the icecaps? | askscience | http://www.reddit.com/r/askscience/comments/1d63by/why_did_nasa_not_send_the_rovers_to_the_icecaps/ | {
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"Ice caps are pretty dangerous environments, with rough terrain, lots of crevasses, etc. The number one priority with landers is finding a spot safe enough to be sure they can get to the ground in one piece. Then they pick ... | [] | [] | [
[],
[]
] | ||
7ewvs7 | What would our world look like if the collision which ejected the material from which formed the Moon had not occurred? Would there be liquid water? What kind of atmosphere if any? Active geological processes? Life? | askscience | https://www.reddit.com/r/askscience/comments/7ewvs7/what_would_our_world_look_like_if_the_collision/ | {
"a_id": [
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"text": [
"Mostly the same. The lack of a moon would lead to a less stable climate in the long term, with more frequent ice ages, and these might interrupt the development of complex life--especially on land--but probably wouldn't com... | [] | [] | [
[],
[]
] | ||
4gq5dr | why aren't men's testes protected by bone like how the lungs are protected by the ribcage or the brain is protected by the skull? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4gq5dr/eli5_why_arent_mens_testes_protected_by_bone_like/ | {
"a_id": [
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"text": [
"They need the freedom to move around to stay the right temperature. A bone protecting them would prevent that",
"sperm production requires a lower body temperature. That's why they hang outside the body. If they were pr... | [] | [] | [
[],
[]
] | ||
2tepuo | Where do the mitochondria come from in a cloned animal? | As I understand it, when we clone something we take DNA from a regular cell of one animal, and insert it in the hollowed-out 'shell' of an egg from another animal to make a 'complete' egg.
But is the insert just chromosomal DNA? Do the mitochondria come from the insert, or from the shell? | askscience | http://www.reddit.com/r/askscience/comments/2tepuo/where_do_the_mitochondria_come_from_in_a_cloned/ | {
"a_id": [
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"text": [
"Classically, the nucleus with a complete complement of nuclear DNA is placed into an egg cell which has had its nucleus removed (enucleated). However, the egg will still have mitochondrial DNA. So, the vast majority of the DNA in the resulting or... | [] | [] | [
[
"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1116485/"
]
] | |
352olr | Would filling the tires of different racing vehicles (cars, bikes, etc.) with a lighter-than-air gas like helium give the racer any kind of significant advantage? | askscience | http://www.reddit.com/r/askscience/comments/352olr/would_filling_the_tires_of_different_racing/ | {
"a_id": [
"cr0lswy"
],
"score": [
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"text": [
"The size of the back tire is 325/45 R13. Unless google is lying to me.\n\nOr 325mm wide x 660mm diameter - 13\" (330mm) rim.\n\nWhich I'm pretty sure is .83 cubic meters unless I suck at math. And if I do someone will correct me.\n\nAnd air weigh... | [] | [] | [
[]
] | ||
8r4wpj | How did earthquakes affect Native Americans? | I assume even a large earthquake couldn't damage a teepee much. But what about Mayan pyramids and such? What did they think about earthquakes? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8r4wpj/how_did_earthquakes_affect_native_americans/ | {
"a_id": [
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"score": [
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"text": [
"Earthquakes were indeed a problem for Mesoamerican engineers. The Aztecs even believed that the 5th sun would be destroyed by an earthquake. Considering how vulnerable the Valley of Mexico is to shockwaves their concerns were justified. And we ca... | [] | [] | [
[]
] | |
1o3qob | why in asian countries people sleep on mattresses on the floor, but western countries sleep on beds well above the ground? | I don't know why I had this pop in to my head last night but yeah, anyone care to explain? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1o3qob/eli5why_in_asian_countries_people_sleep_on/ | {
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"I can't answer for 'most Asian countries' but in Japan the Futon (mattress placed on the floor for sleeping) is used because houses and apartments are small. The space a bed takes... | [] | [] | [
[
"http://www.dannychoo.com/en/post/1293/Tokyo+Apartments.html"
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[],
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68zuid | why are most pills without protective film bitter? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/68zuid/eli5why_are_most_pills_without_protective_film/ | {
"a_id": [
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"score": [
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"text": [
"So people (and especially kids) won't put them in their mouth only because they taste good. ",
"Other people are saying its done on purpose for safety reasons. I can't find any evidence of this. The active ingredient and... | [] | [] | [
[],
[]
] | ||
1t55ll | why is it not a great idea to buy a house outright if you have the cash? | I was told recently that buying a house outright, even if you have the ability to do so, isn't a great idea WRT tax or some other policy, but I didn't push further as to why/I forgot most of the convo. Can anyone shed light on why it's not a great idea to skip a mortgage and go straight to ownership?
| explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1t55ll/eli5why_is_it_not_a_great_idea_to_buy_a_house/ | {
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"text": [
"Sounds like a great idea if you ask me. You'd save a ton in interest.\n",
"This is an ongoing debate. Some think that it is wise to hang onto a mortgage, because the interest you pay to the bank is... | [] | [] | [
[],
[],
[]
] | |
1rg4zy | If an electromagnetic wave's penetrating power is proportional to its frequency, why can visible light penetrate glass, yet UV light, with a higher frequency cannot? | askscience | http://www.reddit.com/r/askscience/comments/1rg4zy/if_an_electromagnetic_waves_penetrating_power_is/ | {
"a_id": [
"cdmy00a"
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"score": [
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"text": [
"The energy of a photon is proportional to frequency, but this energy must match the energy of some transition in the absorbing matter. The electrons in bonds in glass have transitions in the UV, but not the visible range.\n\nThis is the same rea... | [] | [] | [
[]
] | ||
ar7tgg | what is the psychological reason for humans who enjoy trolling or offending people on purpose? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ar7tgg/eli5_what_is_the_psychological_reason_for_humans/ | {
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"I can’t see the other posts either. \n\nI don’t have the answer to this; I suspect no-one will as it will vary by person and won’t have a one size fits all response.\n\nWhat I can give are my suspicions of where this behavio... | [] | [] | [
[],
[]
] | ||
4c0jd9 | If I release the gas pedal on a car while moving, only braking on the gears, would the car use any fuel? | If I press down the clutch as well I understand it will, because the engine consume some fuel to keep it idle, but if it is braking on the gears wouldn't it be the wheels that kept the engine running? On newer cars with a real-time fuel consumtion display it would show 0.0 liters/100 km, but is this because the newer c... | askscience | https://www.reddit.com/r/askscience/comments/4c0jd9/if_i_release_the_gas_pedal_on_a_car_while_moving/ | {
"a_id": [
"d1e8xy4"
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"text": [
"It's... A lot more complicated than that.\n\nWhen using the engine to slow the car, the braking comes from the vacuum formed by the closed throttle body. The throttle body does not form a perfect seal, and some air does move through the airflow... | [] | [] | [
[]
] | |
lz42j | what should i know before opening a bank account? | I'm a freshman in college who wants to open a checking account so that I can have a debit card to make purchases. Should I go with a national bank, what policies should I ask about/be aware of, ect.
I went to look at the banks surrounding my college and there's KeyBank, Northeast Bank, and Androscoggin Bank. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/lz42j/eli5_what_should_i_know_before_opening_a_bank/ | {
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"The only thing you need to be aware of is that you should NEVER settle for an account that... | [] | [] | [
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[],
[],
[],
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"http://www.reddit.com/r/personalfinance"
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ertczx | if the notion that electrons orbit around a nucleus is a misconception, what type of motion do electrons have? do they just float in one position? | Basically, I’m having trouble understanding electrons’ relations to the nuclei they’re attracted to. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ertczx/eli5_if_the_notion_that_electrons_orbit_around_a/ | {
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"https://en.wikipedia.org... | |
2yeyzy | how do we know nothing can go faster than the speed of light? | Just because light travels 299,792,458 m/s through a vacuum, why do we assume nothing can go faster and the energy needed to do so be infinite? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2yeyzy/eli5_how_do_we_know_nothing_can_go_faster_than/ | {
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"You can answer this with a thought experiment, as Derek does in [this](_URL_1_) Veritassium video. This is the... | [] | [] | [
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"http://www.reddit.com/r/explainlikeimfive/comments/22pi7o/z/cgp58ml"
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8z043u | how is plasma made/ extracted from blood? | How is blood different from plasma, and why do the needles that are used to draw it different in size from the ones that draw blood? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8z043u/eli5_how_is_plasma_made_extracted_from_blood/ | {
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"Plasma is the portion of the blood that is not red blood cells or white blood cells. Think of it as the liquid part of the blood. Plasma is made up of a large number of components, including water, proteins, electrolytes, nutrients, and waste p... | [] | [] | [
[]
] | |
2cl17z | before diapers and the like, how the heck did early man keep babies from ruining everyone's day with their angry baby excretions? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2cl17z/eli5_before_diapers_and_the_like_how_the_heck_did/ | {
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... | [] | [] | [
[],
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[],
[],
[],
[
"http://www.chinasmack.com/2014/stories/chinese-parents-have-child-poop-on-airplane-seat-reactions.html"
]
] | ||
4yw5u0 | why do european languages generally use the same alphabet, but asia has many alphabets? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4yw5u0/eli5_why_do_european_languages_generally_use_the/ | {
"a_id": [
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"score": [
3,
2
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"text": [
"The most obvious answer is \"Asia is really big and has lots of people.\" \n\nCivilization in Asia is also older than European civilization. Writing had a chance to evolve in multiple places in Asia independently, while a ... | [] | [] | [
[],
[]
] | ||
wg1eb | james joyce's "finnegan's wake" | I've attempted to read this book several times and have been forced to consult a glossary and reader's guides each time just to interpret the first few pages. I figured this would be a nice little challenge for someone willing to help me break into this seemingly impenetrable tome.
(obviously I don't expect someone to... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/wg1eb/eli5_james_joyces_finnegans_wake/ | {
"a_id": [
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5,
3
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"text": [
"It's not really a book for reading. It's a lot of stream of consciousness writing, he makes up a lot of words, and just doesn't stick to any conventions of traditional writing.\n\nI would suggest reading a little [on Wikiped... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Finnegans_Wake"
],
[]
] | |
1hyir9 | What's up with the results from Princeton's PEAR Lab? | askscience | http://www.reddit.com/r/askscience/comments/1hyir9/whats_up_with_the_results_from_princetons_pear_lab/ | {
"a_id": [
"caz7cit"
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"score": [
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"text": [
"You might want to consider x-posting this to /r/AskScienceDiscussion. They typically support more speculative discussion which is what your answers will inevitably be, since I don't think there's any real answer to your question (yet)."
]
} | [] | [] | [
[]
] | ||
3fnf3n | Would a Neutron star be out of place on the periodic table? If they are, in a way, just big atoms? | askscience | http://www.reddit.com/r/askscience/comments/3fnf3n/would_a_neutron_star_be_out_of_place_on_the/ | {
"a_id": [
"ctq90hy"
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"score": [
27
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"text": [
"Nuclei are bound states of nucleons held by the residual strong force.\n\nA neutron star is not held by strong interaction, moreover it's not entirely composed of neutrons.\n\nA neutron star is in a completely different region of the QCD phase d... | [] | [] | [
[]
] | ||
2ir5q2 | Are there animals that have a concept of "punishment"? | Are there any species that punish their own for specific actions? What is the punishment like? | askscience | http://www.reddit.com/r/askscience/comments/2ir5q2/are_there_animals_that_have_a_concept_of/ | {
"a_id": [
"cl5sdqs"
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"score": [
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"text": [
"Yes, absolutely.\n\nFor example, in vervet monkeys, there are various 'alarm calls' for identifying aerial predators, ground predators, etc. If a monkey falsely uses these calls, some in the group will punish them through slapping and fighting. ... | [] | [] | [
[]
] | |
2trzlv | What is the largest, most comprehensive, and generally accepted to be the best Unitrd States history museum? | I would like to hear the opinions of people in the know. I love museums and would love to hear about the best one, and why it's the best. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2trzlv/what_is_the_largest_most_comprehensive_and/ | {
"a_id": [
"co1tlno",
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"text": [
"I would just like to point out what I believe to be a flaw in your premise. You combine largest, most comprehensive, and best. These are three very different things. \n\nI know some very good local history museums that have ... | [] | [] | [
[
"http://www.nytimes.com/1994/10/01/us/smithsonian-substantially-alters-enola-gay-exhibit-after-criticism.html"
],
[]
] | |
30a2j2 | What was the importance of St. Francis on the catholic church? | I've read a little about how revolutionary was the role of St. Francis in the catholic church but I've never understood really well. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/30a2j2/what_was_the_importance_of_st_francis_on_the/ | {
"a_id": [
"cpr8kgt"
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"score": [
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"text": [
"Do you mean\n\nSaint Francis Xavier, 1506 – 1552, or Saint Francis of Assissi, 1181 – 1226 or one of the many other Saints Francis? _URL_0_\n"
]
} | [] | [] | [
[
"http://www.catholic.org/search/?q=Saint+Francis"
]
] | |
4741o5 | george bush's 90% post-9/11 approval rating. | Seems crazy to me, studying that period now. How did he win the approval of a majority of even Democrats? By just merely holding the office? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4741o5/eli5_george_bushs_90_post911_approval_rating/ | {
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"text": [
"The \"rally round the flag effect.\" Anytime there is a crisis that clearly is not the president's fault, it is common for citizens to band together and support the decisions being... | [] | [] | [
[
"https://en.m.wikipedia.org/wiki/Rally_%27round_the_flag_effect"
],
[],
[],
[]
] | |
4o0h1a | How come we never see historical people depicted with acne? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4o0h1a/how_come_we_never_see_historical_people_depicted/ | {
"a_id": [
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"text": [
"A couple of older threads had some answers you might find interesting.\n\n_URL_2_\n\n_URL_1_\n\nIn the [second thread](_URL_0_) for instance, one fellow mentions that a charac... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/1e3x7e/kind_of_odd_but_the_question_has_always_made_me/c9wn895",
"https://www.reddit.com/r/AskHistorians/comments/1e3x7e/kind_of_odd_but_the_question_has_always_made_me/",
"https://www.reddit.com/r/AskHistorians/comments/1rti3z/was_acne_so_widespread_in... | ||
uzyb6 | Is someone that likes to sleep in or take naps more susceptible to depression? | I have never been a morning person. I always sleep in until the last possible moment that I have to get up for class, work, etc. I'll hit the snooze multiple times. If there is something optional I have planned in the morning, like going to the gym, I usually skip it to sleep more. I also love a good nap. I'm generally... | askscience | http://www.reddit.com/r/askscience/comments/uzyb6/is_someone_that_likes_to_sleep_in_or_take_naps/ | {
"a_id": [
"c502trh"
],
"score": [
7
],
"text": [
"Just another point to keep in mind: A (possible) correlation between sleeping in and depression need not mean that someone who likes to sleep in would be more susceptible to depression - it could also mean that someone who suffers of depression i... | [] | [] | [
[]
] | |
8zmpo4 | when you take a shower, why do your nails get soft, making them easier to be cut? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8zmpo4/eli5_when_you_take_a_shower_why_do_your_nails_get/ | {
"a_id": [
"e2ju0ls"
],
"score": [
3
],
"text": [
"The water softens the keratin. Thats about it. What's easier to cut a hard cookie or the same cookie after you soak it in milk."
]
} | [] | [] | [
[]
] | ||
snfr8 | Why has evolution on land led to more intelligent animals than in water? | Humans and other apes are very intelligent, much more intelligent than dolphins and octopuses. What is it about land that has helped its animals have higher intelligence than aquatic species? Life has existed in the oceans far longer than on land. | askscience | http://www.reddit.com/r/askscience/comments/snfr8/why_has_evolution_on_land_led_to_more_intelligent/ | {
"a_id": [
"c4fei2z",
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"score": [
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4
],
"text": [
"It should be noted that dolphins are widely believed to be more intelligent than most apes. It's been proven that they are self-aware and are very intricate social lives. There is even evidence of dolphins in captivity comm... | [] | [] | [
[],
[]
] | |
26dogs | How can two different species, living in different habitats develop similar patterns? | Like for example the leopard and the leopard ray. | askscience | http://www.reddit.com/r/askscience/comments/26dogs/how_can_two_different_species_living_in_different/ | {
"a_id": [
"chq1evc",
"chq678k"
],
"score": [
9,
2
],
"text": [
"Similar pressures. This is called [analogous structures](_URL_0_). For example, you can imagine a rodent and a deer that find themselves in an area that has, say, grey barked trees will over time find grey coloration to be a... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Analogous_structures"
],
[]
] | |
2tedyp | how do fiber optics work? why can light enter but not exit? are there any practical applications of this technology? | [gif that made me wonder](_URL_0_) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2tedyp/eli5how_do_fiber_optics_work_why_can_light_enter/ | {
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"text": [
"The light does come back out at the other end of the cable. The cable can carry the light over very long distances, requiring fewer repe... | [] | [
"http://i.imgur.com/vN7PJCu.gif"
] | [
[],
[],
[],
[],
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"http://31.222.223.118/ict/ictzone/public%20documents/ks5%20sites/OCR/A2/KS5%20A2%20Networks%20theory/images/SinglemodeOpticalFibre.gif"
],
[]
] | |
3bktpd | The Moon orbits Earth. Earth orbits the Sun. The Sun travels around the center of our galaxy. Is the Milky Way moving around something? If so, how far does this pattern go, and would there be a final "center"? | askscience | http://www.reddit.com/r/askscience/comments/3bktpd/the_moon_orbits_earth_earth_orbits_the_sun_the/ | {
"a_id": [
"csngcle"
],
"score": [
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"text": [
"The Milky Way is the second biggest member of a galaxy cluster, the so called [Local Group](_URL_2_). It's currently on a crash course with its biggest member, the [Andromeda Galaxy M31](_URL_1_). The Milky Way isn't orbiting anything, but simil... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Great_Attractor",
"https://en.wikipedia.org/wiki/Andromeda_Galaxy",
"https://en.wikipedia.org/wiki/Local_Group"
]
] | ||
8crq38 | why are clothes still made by people? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8crq38/eli5_why_are_clothes_still_made_by_people/ | {
"a_id": [
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"text": [
"Nearly all the work is done by machines. If you buy a shirt or a pair of pants, the total human labor that's gone into it is around two minutes — just the few parts that are hardest to automate. If you buy a pair of socks, the total human labor i... | [] | [] | [
[]
] | ||
21xt67 | why can machines - like computer processors - process information and do calculations much faster than a human brain? or any animal's brain, for that matter. | Maybe I'm a bit rusty on my Google-fu, but I couldn't find an answer to this.
EDIT: Thanks for all the answers! I appreciate the thought, and it seems that the answer is unanimous. I find it really interesting that the brain computes in trinary. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/21xt67/eli5_why_can_machines_like_computer_processors/ | {
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"text": [
"They're not really comparable. Brains are capable of integrating huge quantities of data on the fly, they can process language, movement, sensory input, thought, and calculations all at once. Computers ... | [] | [] | [
[],
[
"http://www.ualberta.ca/~chrisw/howfast.html",
"http://cbcl.mit.edu/news/files/liu-tp-picower.html",
"http://www.telegraph.co.uk/technology/news/10129285/Chinese-supercomputer-is-worlds-fastest-at-33860-trillion-calculations-per-second.html"
],
[]
] | |
3rzovv | what actually happen when a computer erasing a file 'permanently' and give more space to save another file? | If it's a house, does it mean rearranging stuff, storing it in basement that we will never see again, or what? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3rzovv/eli5_what_actually_happen_when_a_computer_erasing/ | {
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"text": [
"There is a difference between 'deleting' a file and 'permanently erasing' a file.\n\nWhen you simply delete a file, the data contents of the file are actuall... | [] | [] | [
[],
[],
[],
[],
[]
] | |
7d2ns7 | Why don't plants use ATP from photosynthesis for cellular function? | It seems like it would be more efficient for the plant to use ATP generated by photosynthesis for cellular function rather than taking the extra step to respire. Does all the ATP from photosynthesis power the Citric Acid Cycle? | askscience | https://www.reddit.com/r/askscience/comments/7d2ns7/why_dont_plants_use_atp_from_photosynthesis_for/ | {
"a_id": [
"dpupheg"
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"text": [
"ATP is pretty unstable, which is part of why it's used to power cellular processes; because it's very easy to liberate energy from. But for that same reason it's not easy to store for long periods. So unless the plant cell wants to use the energy... | [] | [] | [
[]
] | |
8mcyp4 | why does a guitar have harmonics only on certain parts of the fretboard/string? | Picking/tapping a string to produce a harmonic note. What is the science behind this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8mcyp4/eli5_why_does_a_guitar_have_harmonics_only_on/ | {
"a_id": [
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"score": [
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"text": [
"First you need to understand the concept of overtones.\n\nLet's say you play the open E string. The main and strongest tone you're going to hear is the E note, because that's the main frequency the string is vibrating at. But because the string i... | [] | [] | [
[]
] | |
98t5by | When did the divergence between the people that would become Spanish and Portuguese begin in medieval Iberia? What caused the two identities to become very separate? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/98t5by/when_did_the_divergence_between_the_people_that/ | {
"a_id": [
"e4j7eot",
"e4jgar5",
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],
"score": [
405,
345,
60
],
"text": [
"Followup: was there *ever* a cohesive Iberian identity?\n\nIt appears that you've had various disparate groups fighting themselves, each other, and invaders throughout the entire history of Iberia.... | [] | [] | [
[],
[],
[
"https://legacy.lib.utexas.edu/maps/historical/spanish_kingdoms_1210.jpg"
]
] | ||
2ueojo | for 99.5% of humanity's history, a baby that wouldn't breastfeed, would die. simple as that. so, for modern babies, why is a problem with babies not "latching on" such a common post-pregnancy problem? shouldn't natural selection have fixed that? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2ueojo/eli5_for_995_of_humanitys_history_a_baby_that/ | {
"a_id": [
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"score": [
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3,
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],
"text": [
"Its my understanding that this is most often a problem with first pregnancies, not later pregnancies. And it's actually fairly common that the first offspring of many species die of neglect, because fir... | [] | [] | [
[],
[],
[]
] | ||
1co4n2 | Are there any languages that entirely lack grammatical gender -- including as to pronouns? | askscience | http://www.reddit.com/r/askscience/comments/1co4n2/are_there_any_languages_that_entirely_lack/ | {
"a_id": [
"c9igpo4",
"c9ijfk8"
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"score": [
5,
3
],
"text": [
"Chinese pretty much doesn't acknowledge grammatical gender. The word 'she' (她) is only a more recent invention. Originally 'he' and 'she' was just 他.",
"[As WALS indicates](_URL_0_), marking grammatical gender on pronoun... | [] | [] | [
[],
[
"http://wals.info/feature/44A?s=20&z5=3000&z4=2999&z1=2998&z2=2997&z3=2996&z6=2995&tg_format=map&v1=c00d&v2=cd00&v3=cf6f&v4=d00d&v5=df6f&v6=cfff"
]
] | ||
2qd0up | why are us street numbers so random? | In most western countries number 10 is next to number 12 which is next to number 14. In the US even a small street can have 22097 next to 22092. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2qd0up/eli5_why_are_us_street_numbers_so_random/ | {
"a_id": [
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"score": [
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5,
2
],
"text": [
"Many places in the US (though not NYC) houses are numbered by the cross street, so between 6th and 7th avenue (or what would be if they haven't been given other names) the houses go from 600 to 700. So ... | [] | [] | [
[],
[],
[]
] | |
tnd01 | Have there been any documented cases of humans with significant beneficial genetic mutations? | askscience | http://www.reddit.com/r/askscience/comments/tnd01/have_there_been_any_documented_cases_of_humans/ | {
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13
],
"text": [
"Sickle-cell gives a pretty significant benefit - resistance to malaria. Of course, there are other problems associated with sickle-cell, especially if you get both alleles inst... | [] | [] | [
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Lactase_persistence"
]
] | ||
510myc | what is the explanation for one country being on the top economically but still not having good standards of living for it's people? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/510myc/eli5_what_is_the_explanation_for_one_country/ | {
"a_id": [
"d78eeii",
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"score": [
2,
4,
8
],
"text": [
"From my limited understanding, it's just because the measures used come up with an economic \"rating\" generally have little or nothing directly to do with the living conditions of people in the country... | [] | [] | [
[],
[],
[]
] | ||
wpme8 | Has nuclear propulsion ever been researched or considered in launching rockets? Is it feasible? In terms of weight vs. propulsion, would a nuclear rocket have the best performance if it was possible? | askscience | http://www.reddit.com/r/askscience/comments/wpme8/has_nuclear_propulsion_ever_been_researched_or/ | {
"a_id": [
"c5fbzxw",
"c5fc4px"
],
"score": [
7,
7
],
"text": [
"Google Project Orion. ",
"NASA's [NERVA](_URL_0_) program in the '60s and early '70s was successfully ground-tested. This was how the Von Braun-era engineers planned to get us to Mars.\n\nWe will not be doing nuclear la... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/NERVA"
]
] | ||
vyxv6 | Is it possible to visualize subatomic particles? | Hi AskScience!
I'm curious about what you think subatomic particles look like. Is it possible to visually describe them, or is that beyond our understanding at this time? I was just watching the famous ["Powers of Ten"](_URL_1_) film by Charles and Ray Eames, and at the [10^-12 to 10^-15](_URL_0_) range in the film we... | askscience | http://www.reddit.com/r/askscience/comments/vyxv6/is_it_possible_to_visualize_subatomic_particles/ | {
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11,
2,
2,
5,
2
],
"text": [
"It is kinda impossible to visualise them because our sense, especialy the eyes are only tuned to perceive only a small fraction of the light spectrum. You co... | [] | [
"http://www.youtube.com/watch?v=0fKBhvDjuy0&t=8m10s",
"https://www.youtube.com/watch?v=0fKBhvDjuy0"
] | [
[
"http://www.livescience.com/14322-electron-shape-standard-model-particle-physics.html"
],
[
"https://www.youtube.com/watch?v=uxlOMa6pdr4",
"http://web2py.com/fermiqcd",
"http://vimeo.com/album/172224/video/9022274"
],
[
"http://xxx.lanl.gov/abs/quant-ph/0412119",
"http://en.wikiped... | |
1jcu9y | why don't the animals of the chernobyl disaster zone die of radiation poisoning? | You see posts like [these](_URL_0_) from time to time. It claims that the animals near the radiation zone and in the zone are thriving because of the lack of human presence.
Humans aren't there because radiation sickness hurts, so why aren't the animals dying as well? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1jcu9y/eli5_why_dont_the_animals_of_the_chernobyl/ | {
"a_id": [
"cbddspo",
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"cbdle6o",
"cbdltw1",
"cbdlu9o",
"cbdlzf2",
"cbdm21v",
"cbdmmzg",
"cbdnfur",
"c... | [] | [
"http://www.reddit.com/r/todayilearned/comments/1jct0f/til_of_the_red_forest_which_is_a_4_square/"
] | [
[],
[
"http://www.telegraph.co.uk/earth/environment/9646437/The-women-living-in-Chernobyls-toxic-wasteland.html"
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[
"http://www.wired.com/magazine/2011/04/ff_chernobyl/"
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[],
[],
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[],
[],
[],
[],
[],
[],
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"http://m.animalplanet.com/... | |
2jdyn2 | Prior to the introduction of firearms, did militaries ever have archers, slingers, etc. that acted as "snipers" or marksmen? | If so, how were they trained and equipped? Were they effective? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2jdyn2/prior_to_the_introduction_of_firearms_did/ | {
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3,
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"text": [
"I'm not sure I really understand the question.\n\nAre you asking if armies dispatched archers in very small squads to attack high value targets from an ambush point, as opposed t... | [] | [] | [
[],
[],
[],
[]
] | |
8au4ir | How are organ transplant even possible? | I thought that our MHC and HLA cells would immediately detect that the organ and tissue is foreign and proceed to attack it. Is there a sort of threshold of similarity for these cells to not attack the transplanted organ? | askscience | https://www.reddit.com/r/askscience/comments/8au4ir/how_are_organ_transplant_even_possible/ | {
"a_id": [
"dx1k69r",
"dx1vm7p",
"dx20bia"
],
"score": [
24,
2,
2
],
"text": [
"They give you immunosuppressants.\n\nImmunosuppressants are drugs or medicines that lower the body's ability to reject a transplanted organ. Another term for these drugs is anti-rejection drugs. There ... | [] | [] | [
[],
[],
[]
] | |
34rvt5 | what is scandinavian socialism, and why is it so great? | I know that the Scans have got it going on, but I just don't know how or why. Also, if the United States were to implement a similar structure what would have to change..? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/34rvt5/eli5_what_is_scandinavian_socialism_and_why_is_it/ | {
"a_id": [
"cqxhccc",
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"score": [
3,
2
],
"text": [
"I'm getting this from Wikipedia so this may be a bit dubious, but I'll my best.\n\nThe thing about Scandinavian Socialism, or the Nordic Model as it's normally called, it's that it's comparatively light on the Socialism part... | [] | [] | [
[],
[]
] | |
4bhba6 | why does facebook censor anything that resembles a nipple but not horrific scenes of violence and/or religious videos inciting violence? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4bhba6/eli5why_does_facebook_censor_anything_that/ | {
"a_id": [
"d192h96"
],
"score": [
12
],
"text": [
"Because Facebook is an American company and has the American puritanical idea that sex is bad and violence is good. It's something that is deeply ingrained in our society. "
]
} | [] | [] | [
[]
] | ||
1fx1hf | how did the octopus do this? | I saw this gif posted in /r/woahdude
_URL_0_
And was wondering how an octupus can do that? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1fx1hf/eli5how_did_the_octopus_do_this/ | {
"a_id": [
"caempuc",
"caepyov"
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"score": [
6,
2
],
"text": [
"They have special pigment cells on their skin called chromatophores. They use muscles to contract and expand the cells which lead to various colors being seen. They can also use the muscles in their skin to contort pieces of... | [] | [
"http://www.gifbin.com/985297"
] | [
[],
[
"http://www.youtube.com/watch?v=PmDTtkZlMwM"
]
] | |
8mbt4i | In the Roman Empire, was there ever any significant debate about the moral issues with slavery? | How did the perception of slavery change throughout roman history and was there ever something like an Abolitionist Movement? Asking about the Roman Republic as well as the Empire.
| AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8mbt4i/in_the_roman_empire_was_there_ever_any/ | {
"a_id": [
"dzmmenl",
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119,
796,
3
],
"text": [
"\"Abolitionist,\" not that I know of, and \"moral\" is going to be a difficult term to pin down here, but certainly ancient authors discussed the institution, whether it was good or natural or vise ... | [] | [] | [
[
"http://history.rutgers.edu/docman-docs/undergraduate/syllabi/fall-2017/1676-510-300-figueira/file",
"https://en.wikisource.org/wiki/Politics_\\(Jowett\\)/Book_I",
"http://www.misterdann.com/syllabusproject/HuntPCLA4071Sla.pdf",
"https://en.wikisource.org/wiki/Moral_letters_to_Lucilius/Letter_47",... | |
feg2ai | why do salted soft pretzels sweat if left out over night? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/feg2ai/eli5_why_do_salted_soft_pretzels_sweat_if_left/ | {
"a_id": [
"fjnqt60",
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"score": [
2,
6
],
"text": [
"Soft pretzel still have a good bit of water in them, and that water along with the gluten is part of what makes them stay soft.\n\nEvaporation will cause it to lose water, and having salt on the surface will also draw out wa... | [] | [] | [
[],
[]
] | ||
cs9wh6 | every month we see studies talking about how they have successfully found a cure for cancer but they just vanish after sometime. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cs9wh6/elif_every_month_we_see_studies_talking_about_how/ | {
"a_id": [
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"text": [
"Cancer isn't just one disease. Many forms of cancer are successfully treated using the findings of the studies you're talking about.",
"One issue is that a lot of treatments show promise in the mou... | [] | [] | [
[],
[],
[]
] | ||
8gqpo7 | [religious] if (a)in the begining god created adam and eve but doesn't mention the creation of anyone else, and (b) god commanded noah to save his family and various animals from a flood that was to wipe out the earth.... are we twice inbred as a species? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8gqpo7/eli5_religious_if_ain_the_begining_god_created/ | {
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"text": [
"According to fundamentalist we are, but if you look at the DNA evidence it’s clear this was all non-sense. ",
"The bible isn't reall... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | ||
6gyrum | why do video game developers take so long to come out with their game when it seems as though they have a nearly complete product at events such as e3? in essence, what takes them so long to revise that they need months after releasing game play footage? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6gyrum/eli5_why_do_video_game_developers_take_so_long_to/ | {
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"text": [
"Pretty sure DEMOs and such are sectioned off parts of the game they get working just to show it off and hype people. Game itself is no where near complete.",
"Are you talking ... | [] | [] | [
[],
[],
[],
[]
] | ||
1c6chf | Are our fingernails attached to the skin under it? If so, how do they grow without slowly and painfully ripping our skin off? | The question came to me after a sharp pain from cutting my nail too short. Anyone out there know about this?
EDIT: Okay, so the general consensus is that nails a basically composed of keratin. Apparently there is a layer of some sort of nail matrix in between the epidermis and the actual nail. This material is what ac... | askscience | http://www.reddit.com/r/askscience/comments/1c6chf/are_our_fingernails_attached_to_the_skin_under_it/ | {
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... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Just-noticeable_difference"
],
[],
[],
[]
] | |
2xiyc4 | is it possible to develop illnesses like ptsd from viewing disturbing images? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2xiyc4/eli5_is_it_possible_to_develop_illnesses_like/ | {
"a_id": [
"cp0i4qz"
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"text": [
"PTSD is a mental health problem that can occur after someone goes through a traumatic event like war, assault, an accident or disaster.\n\nThat being said, and since suffering is relative to the person, you can have something that triggers and ov... | [] | [] | [
[]
] | ||
2vf0st | Why do so many schoolbooks say the Romans copied the Greek religion? That seems like a simplistic and superficial assumption. Is it really true? | In school they present the Romans as having copied the entire Greek religion. I always thought that seemed like a stupid argument, and remember the sneers of other kids in class. The way i saw it was that Jupiter was identified with Zeus the same way the Jewish Yahweh and the Muslim Allah are regarded as the same god.
... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2vf0st/why_do_so_many_schoolbooks_say_the_romans_copied/ | {
"a_id": [
"cohe2jp"
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"score": [
6
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"text": [
"It is nearly completely untrue. Your interpretation\n\n > The way i saw it was that Jupiter was identified with Zeus the same way the Jewish Yahweh and the Muslim Allah are regarded as the same god.\n\nis a much more correct understanding. The R... | [] | [] | [
[]
] | |
b2bdpz | how in the world is formula 1 profitable for the teams? | Teams like Ferrari and Mercedez have a budget of over a billion dollars, what the hell? They're losing money in order to compete in F1, right? I can't fathom they'd make it back... It's not that big of a spectator sport in comparison to other sports and so..so much money goes into it. How does that work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b2bdpz/eli5_how_in_the_world_is_formula_1_profitable_for/ | {
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20,
10,
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],
"text": [
"Winning sells cars. That's why manufactures put money into F1. many common features in modern cars such as ABS and traction control... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
78i1fg | Can you transplant organs across genders? | For example can a man receive a woman's heart? Vice versa? What about transgendered? | askscience | https://www.reddit.com/r/askscience/comments/78i1fg/can_you_transplant_organs_across_genders/ | {
"a_id": [
"doubovn",
"douik8v"
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"score": [
32,
2
],
"text": [
"Gender is not a relevant criterium to judge possible organ donors. I only know about live organ donation, for example kidneys, but I assume that it is very similar with recently deceased donors. Your blood is tested for the... | [] | [] | [
[],
[]
] | |
eujsvp | why don’t birds have teeth? | I was in smacked city, heading off to snowboard. Somehow I got into a conversation with my dad and younger sister about dinosaurs and reptiles. Then my dad dropped the bomb on me and told me that chickens and birds came from dinosaurs. That then confused me because birds don’t have teeth. Where did they go? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/eujsvp/eli5_why_dont_birds_have_teeth/ | {
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"text": [
"Most birds are no longer hunting mammals or other animals that are larger than them, birds still have jagged edges inside their beaks if you look closely but they simply don't need... | [] | [] | [
[],
[],
[],
[]
] | |
36jtjr | If I keep doing an action that creates bruises in the same general area (giving them time to heal in between), why does that area eventually stop bruising? | I'm an aerialist, which creates a lot of bruises. Why is it that once I do a move enough times, I eventually stop getting bruises from it and it no longer hurts to do? | askscience | http://www.reddit.com/r/askscience/comments/36jtjr/if_i_keep_doing_an_action_that_creates_bruises_in/ | {
"a_id": [
"creud1z"
],
"score": [
2
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"text": [
"Bruises are created by popped blood vessels internally bleeding right under the surface of your skin. To heal from the ruptures in the vessel, you release clotting factors and such to block the hole. The platelets and such that replace the blood ... | [] | [] | [
[]
] |
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