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 |
|---|---|---|---|---|---|---|---|---|---|
33zj3l | What is happening on a microscopic level when I burn my toast? | And why does it get crunchy? | askscience | http://www.reddit.com/r/askscience/comments/33zj3l/what_is_happening_on_a_microscopic_level_when_i/ | {
"a_id": [
"cqq79jo"
],
"score": [
3
],
"text": [
"[The Maillard Reaction](_URL_0_)"
]
} | [] | [] | [
[
"http://en.wikipedia.org/wiki/Maillard_reaction"
]
] | |
4n6vfi | If I weigh X and add Y weight to my body during exercise, do I burn the same calories as a person who weights X+Y? | For example, suppose I weigh 200 pounds and add a 20 pound weighted vest to my body. Do I burn the calories of a 220-pound person, or am I burning the calories of a 200-pound person who is carrying around 20 pounds of weight? Or, is there even any difference? | askscience | https://www.reddit.com/r/askscience/comments/4n6vfi/if_i_weigh_x_and_add_y_weight_to_my_body_during/ | {
"a_id": [
"d41srtq",
"d420wlt"
],
"score": [
14,
3
],
"text": [
"You will be burning slightly fewer calories. The reason for this is that all body mass needs to burn calories constantly to maintain normal life processes, but if you put on the vest, the vest would not need to burn calorie... | [] | [] | [
[],
[]
] | |
p70ft | Why is it when I close one eye, the vision in my open one appears to have "Warm" colors, and the other appears to have "Cool" colors? | For example, when I close my left eye, everything I see through my right eye has an orange-tint to it, seeming like all the colors I see are "warm". However, when I look through my left eye with my right eye closed, there is a blue-tint to all the colors I see, making them appear "cool".
Is this so all the colors I s... | askscience | http://www.reddit.com/r/askscience/comments/p70ft/why_is_it_when_i_close_one_eye_the_vision_in_my/ | {
"a_id": [
"c3n21nl",
"c3n26sp",
"c3n3n5f",
"c3n4pj1",
"c3n8i8o"
],
"score": [
8,
8,
37,
2,
2
],
"text": [
"Sometimes your eyes have different ratios of the color sensing cone cells. There are even people called unilateral dichromats who are colorblind in one eye b... | [] | [] | [
[],
[
"http://ask.metafilter.com/94549/right-eye-red-left-eye-blue"
],
[],
[],
[]
] | |
exuu3 | Would someone please explain the whole "tiny curled up extra dimensions" thing? | I've seen it most recently during a repost of that ridiculous "Imagining the 10th Dimension" video, but I've heard it thrown around before. Why do our theories need extra dimensions? How are the ones predicted by these theories different from the 3+1 we think of normally? Other conceptual question I don't have the nece... | askscience | http://www.reddit.com/r/askscience/comments/exuu3/would_someone_please_explain_the_whole_tiny/ | {
"a_id": [
"c1bsbj0",
"c1bsf8g"
],
"score": [
1342,
7
],
"text": [
"Okay. So. Dimensions. What is a \"dimension?\" If you go by bad science-fiction B-movies, a \"dimension\" is a sort of parallel plane of existence, one that intersects but is distinct from our own.\n\nThis is absolute, un... | [] | [] | [
[],
[]
] | |
1mxr0s | What was going on in China that so many of them migrated to work for the railroads in the U.S.? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1mxr0s/what_was_going_on_in_china_that_so_many_of_them/ | {
"a_id": [
"ccdlnr8",
"ccdotfp"
],
"score": [
9,
9
],
"text": [
"The Taiping Rebellion started in 1850. It was fairly bloody, even by Chinese standards. The effects of that rebellion also inspired others to rebel and there were associated problems with flooding and famine. _URL_0_",
... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Taiping_Rebellion"
],
[]
] | ||
14x8cs | what did it cost to go see an actual mozart opera? | what was the ticket price in current cost? did it include anything like snacks? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/14x8cs/what_did_it_cost_to_go_see_an_actual_mozart_opera/ | {
"a_id": [
"c7haydl",
"c7hdzih",
"c7hgjnn"
],
"score": [
81,
32,
8
],
"text": [
"I can't seem to find any really solid sources right now, and all my books are still at school (I'm home from college on break right now), but I have studied music history quite a bit, so I can at leas... | [] | [] | [
[
"http://en.wikipedia.org/wiki/List_of_operas_by_Mozart"
],
[],
[
"http://bazonline.ch/kultur/klassik/Wie-Topverdiener-Mozart-sein-Vermoegen-verprasste/story/18066880",
"http://2.bp.blogspot.com/_L6d-cxfUiEs/TLXo-FBGz0I/AAAAAAAAAag/qNya8qPy2fs/s1600/Don+Giovanni_Bill_Oldest.jpg"
]
] | |
5mvtdr | why do ladybugs seem to appear inside every time the temperature drops? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5mvtdr/eli5why_do_ladybugs_seem_to_appear_inside_every/ | {
"a_id": [
"dc6qxyo"
],
"score": [
2
],
"text": [
"These insects, among quite a few others are doing something called over wintering. I'm short, they are looking for shelter. Homes/buildings are about the best fit for that. So as the temp drops they look for these places to survive. You'll actual... | [] | [] | [
[]
] | ||
357n0v | why are pretzels shaped like... well, pretzels? where did that shape originate from? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/357n0v/eli5_why_are_pretzels_shaped_like_well_pretzels/ | {
"a_id": [
"cr1rmmx"
],
"score": [
3
],
"text": [
"Can't remember specifics but something about nuns creating a shape that looked like children folding arms."
]
} | [] | [] | [
[]
] | ||
3iodt6 | why does software randomly not work or crash at times but is fine after a restart? | One way of the first ways to solve a tech problem is to just restart it, but why does that fix most problems? Shouldn't the same event just repeat again and again if in the same circumstances? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3iodt6/eli5_why_does_software_randomly_not_work_or_crash/ | {
"a_id": [
"cui7pre",
"cui85zk",
"cui8e0q"
],
"score": [
5,
2,
2
],
"text": [
"Computer programs ALWAYS have bugs, it's the nature of programming as software is usually so complicated with thousands upon thousands of lines of code, some situations weren't thought about or someone ... | [] | [] | [
[],
[],
[]
] | |
d2wszx | how is it possible for light to not have reached us from parts of the universe yet? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d2wszx/eli5_how_is_it_possible_for_light_to_not_have/ | {
"a_id": [
"ezx9tqs",
"ezxanxw",
"ezxbbt4",
"ezxbz9v"
],
"score": [
8,
6,
3,
2
],
"text": [
"The limit of Speed of Light only applies to particles moving through spacetime, it does not apply to spacetime itself. Two points in spacetime can be pushed apart by the expansion ... | [] | [] | [
[],
[],
[],
[]
] | ||
t6s1k | How do athletes seemingly tear their ACLs so easily during non-contact portions of their respective sports? | I've been watching the NBA playoffs, and after seeing Derrick Rose and Iman Shumpert both tear their ACLs, I am wondering how it is possible to tear the ligament so easily without any kind of contact with another player. This also comes after hearing that Mariano Rivera tore his ACL during a practice.
I've played socc... | askscience | http://www.reddit.com/r/askscience/comments/t6s1k/how_do_athletes_seemingly_tear_their_acls_so/ | {
"a_id": [
"c4k0wpn"
],
"score": [
2
],
"text": [
"The others posting here have done a really good job of explaining so far, but I'll fill in with a little more information.\n\nThe ACL is most commonly torn when the knee bends backwards too far, or moves too far to the side. This is easily somet... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Anterior_cruciate_ligament_injury"
]
] | |
9szdkl | Why did Mormonism succeed? | I just learned in my APUSH class about the rise of Mormonism in the 1800's and from all the facts, I don't understand why it succeeded far more than any other movements. Somebody claiming to have a third part of the Bible just seems like it shouldn't have worked. What factors led to the rise of Mormonism in America? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9szdkl/why_did_mormonism_succeed/ | {
"a_id": [
"e8t7vlp"
],
"score": [
450
],
"text": [
"Yay, a question where I actually have some level of cursory expertise!\n\nTL;DR at the end. Sorry for typos, didn't proof before submitting.\n\nTo begin understanding how Mormonism was allowed to flourish requires a brief understanding of the P... | [] | [] | [
[]
] | |
sy3wq | How do we know how many people died under Stalin and Mao? | I ask because I've been reading some things which suggest that the numbers are exaggerated (possibly to slander communism?) and so I was curious as to how the accepted death tolls came about. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/sy3wq/how_do_we_know_how_many_people_died_under_stalin/ | {
"a_id": [
"c4hywal",
"c4hzepn",
"c4hzjux",
"c4i0k6a"
],
"score": [
14,
7,
6,
8
],
"text": [
"We honestly don't know accurately, it's mostly educated guesses and deduction, some will be higher than reality and some will be lower than the true number. It's just like with mo... | [] | [] | [
[],
[],
[],
[]
] | |
1zrvsj | how to become a programmer when /r/learnprogramming goes over my head? [serious] | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1zrvsj/eli5_how_to_become_a_programmer_when/ | {
"a_id": [
"cfwdmt3"
],
"score": [
2
],
"text": [
"Just how far over your head are we talking? Do you have any sort of math background? Do you know what a computer is?\n\nYou might try to start with some sort of interactive tutorial like [Code Academy](_URL_0_) or a book that's meant to teach ev... | [] | [] | [
[
"http://www.codecademy.com/"
]
] | ||
7mjqp5 | How did Native Americans in Canada survive the massive snow dumps and -20/-30 degree weather? | Checking my app, it says it feels like -28. How did the Native Americans survive this? I understand they had clothing made out of skins but even so... did they hunt in these garments? What happened if they got wet from snow? How did they get food when there’s three, four layers of snow 90cm high? How could woman have c... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7mjqp5/how_did_native_americans_in_canada_survive_the/ | {
"a_id": [
"drurank",
"drv5ksc"
],
"score": [
989,
674
],
"text": [
"1. Could you please specify what era you're interested in? In 2006, 50.3% of people living in the Northwest Territories identified themselves as Aboriginal Canadians (First Nations, Metis, Inuit, or multiple/other Aborig... | [] | [] | [
[
"http://moses.creighton.edu/kripke/jesuitrelations/",
"https://www.reddit.com/r/AskHistorians/comments/42ban7/how_did_the_early_settlers_on_the_east_coast_of/cz9btqy/"
],
[]
] | |
3iqev1 | how do professional boxers have (decently) long careers if they're getting concussed everytime they fight? | I've always wondered how they manage not getting severe permenant brain damage from getting knocked out all the time and then keep fighting? I know in other sports like hockey, concussions are very serious and there are long recovery periods. A buddy of mine who I played hockey with got 4 concussions in 2 years and had... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3iqev1/eli5_how_do_professional_boxers_have_decently/ | {
"a_id": [
"cuiov15",
"cuisrf0"
],
"score": [
3,
2
],
"text": [
"_URL_0_\n\nIt is a problem in boxing, although today's boxers and trainers know more about it and boxers have adopted a much more defensive style (lots of clinching, few face-to-face brawls) that prevents them getting punche... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Dementia_pugilistica"
],
[]
] | |
sxlch | If the US government printed $15 trillion to pay off the debt, what would the rate of inflation become? | askscience | http://www.reddit.com/r/askscience/comments/sxlch/if_the_us_government_printed_15_trillion_to_pay/ | {
"a_id": [
"c4htir1",
"c4hv2l5",
"c4hvwsr",
"c4hwkhd"
],
"score": [
6,
5,
4,
3
],
"text": [
"Looking around, there are various estimates online of the total circulating US money supply, [this](_URL_0_) source estimates about $3.5 trillion in bills and coins, which would in... | [] | [] | [
[
"http://visualeconomics.creditloan.com/the-value-of-united-states-currency-in-circulation/",
"http://en.wikipedia.org/wiki/Money_supply#United_States"
],
[
"http://en.wikipedia.org/wiki/Hyperinflation_in_the_Weimar_Republic"
],
[],
[
"http://www.federalreserve.gov/releases/h41/current/h4... | ||
el6kvf | How much ocean water is moved worldwide each tidal cycle? | As the gravitational forces of the moon and (lesser) the sun pull upon ocean water huge amounts of water are moved. I'm wondering (and have not been able to find via search) any answer to how many gallons of seawater are moved with every cycle of the tide.
Clearly not every tide cycle is the same. Sometimes the su... | askscience | https://www.reddit.com/r/askscience/comments/el6kvf/how_much_ocean_water_is_moved_worldwide_each/ | {
"a_id": [
"fdgzr2r",
"fdhr6sc"
],
"score": [
4,
2
],
"text": [
"I doubt anyone can answer that for the case of the Earth as it is far too complicated. Tides on the Earth are subject to the topography of the ocean bed and so vary throughout the oceans.\n\nI think even for a homogeneous fl... | [] | [] | [
[],
[]
] | |
1jka9i | what are the 165,000 new jobs the us economy says has been added in july and how are they created so quickly? | Obviously not every single one description for description, but generally are they government jobs or jobs that have sprung up through government projects? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1jka9i/eli5_what_are_the_165000_new_jobs_the_us_economy/ | {
"a_id": [
"cbfhqlg",
"cbfivxd",
"cbfjn5e"
],
"score": [
2,
3,
3
],
"text": [
"there is nothing quick about it, this economy has been producing about 140,000 new jobs every month this year.\n\nBovernment employment has been going down steadily for the last few years and is one of ... | [] | [] | [
[],
[
"http://www.dol.gov/opa/media/press/opa/OPA20131589.htm",
"http://www.bls.gov/news.release/empsit.nr0.htm"
],
[
"http://www.forbes.com/sites/peterferrara/2013/07/14/the-untold-unemployment-story-a-loss-of-162000-full-time-jobs-in-june/",
"http://www.forbes.com/sites/robertlenzner/2012/11... | |
1kb8rn | How exactly did the Japanese worship their Emperor in the early 20th century/ww2? | Was there a set of rituals? Did they actually pray to him? Would dying for your country get you into paradise? What were children instructed in schools? How did it sync up with other religions? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1kb8rn/how_exactly_did_the_japanese_worship_their/ | {
"a_id": [
"cbn6ga7",
"cbn7unr"
],
"score": [
5,
4
],
"text": [
"To my knowledge the Emperor wasn't praised as a god via rituals as that would go against their religion to their many gods, it would have been seen as an insult.\n\nIn the early 20th century/WW2 era the Emporer was often tho... | [] | [] | [
[],
[]
] | |
6f81c2 | what do we measure in mhz when we are talking about cpus, does it have any moving parts like a hard-disk does? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6f81c2/eli5_what_do_we_measure_in_mhz_when_we_are/ | {
"a_id": [
"dig663w",
"digmf64"
],
"score": [
7,
2
],
"text": [
"A CPU is essentially made from switches. Tiny areas on a piece of silicon - a microchip - can be created such that they allow electricity to pass from one place to another when there is electricity supplied at a third point ... | [] | [] | [
[],
[]
] | ||
31hkg2 | How did Nazi Germany a regime born out of the ruins of World War 1 have so much access to a diverse pool of top notch academics by world war 2? ( Rocket scientists, Gunsmiths, Cytologists/ciphers, Tank and aircraft engineers) | I mean isn't it absolutely crazy how a destitute nation could have access to such great minds as to have made the Enigma, Tiger tank, V3 rocket and stermgever? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/31hkg2/how_did_nazi_germany_a_regime_born_out_of_the/ | {
"a_id": [
"cq1rc1d",
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"cq1s28h",
"cq1ul3o"
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"score": [
131,
29,
12,
3,
3
],
"text": [
"It seems to me that you assume that if there is hunger and some political chaos that all the institutions stop functioning? Germany before WWI was one of ... | [] | [] | [
[
"http://www.worldeconomics.com/Data/MadisonHistoricalGDP/Madison%20Historical%20GDP%20Data.efp",
"https://docs.google.com/spreadsheets/d/1c6VaKFh7znO4RT_FBJxQcQLepehkf_4ymwZclpnx-M8/edit?usp=sharing"
],
[],
[
"https://www.reddit.com/r/AskHistorians/comments/2ewfg2/was_germany_far_ahead_technolog... | |
2t4cyj | you know that feeling when you're drinking something, and there's like a pause almost i'm not sure how to put it, a throat-cramp of sorts when it's going down your throat? sorry if nobody knows what i'm talking about | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2t4cyj/eli5_you_know_that_feeling_when_youre_drinking/ | {
"a_id": [
"cnvl85v"
],
"score": [
2
],
"text": [
"Yes. It hurts. I think it's an air bubble so there's not room for the liquid and the bubble so it feels like a trying to swallow big lump."
]
} | [] | [] | [
[]
] | ||
2tqnvr | Why are bronze and brass not as common metals to make things as they used to be in antiquity? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2tqnvr/why_are_bronze_and_brass_not_as_common_metals_to/ | {
"a_id": [
"co1g483"
],
"score": [
5
],
"text": [
"we have harder metals to work that produce a better product in the end.\n\nThe main issue with bronze is that its a rather soft metal and doesn't keep its edge well. While early iron suffered similar issues (with less reparability) the moment you... | [] | [] | [
[]
] | ||
mf68e | How do snipers/spotters calculate where to shoot? | askscience | http://www.reddit.com/r/askscience/comments/mf68e/how_do_snipersspotters_calculate_where_to_shoot/ | {
"a_id": [
"c30eylv",
"c30f1n7",
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"c30eylv",
"c30f1n7",
"c30gl06"
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"score": [
3,
4,
2,
3,
4,
2
],
"text": [
"Taking into account wind, gravity, distance, the gun they are using and the bullets they are using, the spotters are able to approximate... | [] | [] | [
[],
[],
[
"http://www.mil-dot.com/user-guide",
"http://www.milsurpstuff.com/prodimages/new-mil-dot.jpg",
"http://en.wikipedia.org/wiki/Anemometer"
],
[],
[],
[
"http://www.mil-dot.com/user-guide",
"http://www.milsurpstuff.com/prodimages/new-mil-dot.jpg",
"http://en.wikipedia.org/... | ||
2stw02 | What's the correct response to this objection to special relativity? | [_URL_0_](_URL_0_)
Could you also address the challenge linked at the bottom of the page? | askscience | http://www.reddit.com/r/askscience/comments/2stw02/whats_the_correct_response_to_this_objection_to/ | {
"a_id": [
"cnsxotv",
"cnszc89"
],
"score": [
9,
3
],
"text": [
"Whoever wrote this is trying to discredit SR because they still hold onto the assumption of absolute time and don't understand that that assumption has to be abandoned. Let's take a look at this statement they make while tal... | [] | [
"http://www.alternativephysics.org/book/TimeDilation.htm"
] | [
[
"http://youtu.be/kGsbBw1I0Rg"
],
[
"http://www.mathpages.com/home/kmath024/kmath024.htm",
"http://www.mathpages.com/home/kmath317/kmath317.htm"
]
] | |
6g7z71 | how can energy companies guarantee a customer getting '100% green energy', when they also produce energy from fossil fuels? | Since the cables are all the same, and probably the storage too. How can utility companies make such guarantees without lying? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6g7z71/eli5_how_can_energy_companies_guarantee_a/ | {
"a_id": [
"dio6296"
],
"score": [
2
],
"text": [
"Electricity isn't a physical object that's being piped around, so the idea of there being specific energy being produced in one place and then shipped around doesn't really work.\n\nWhat the energy company is guaranteeing is that they'll supply, ... | [] | [] | [
[]
] | |
17yd6e | Do so-called "brain training" games really work? | I have friends who swear by brain training games (like those on the Nintendo DS and Lumosity*), saying that it increases their level of focus and problem solving skills.
I'm a bit skeptical.
*Lumosity not Luminosity.
**Thank you all for your answers.
| askscience | http://www.reddit.com/r/askscience/comments/17yd6e/do_socalled_brain_training_games_really_work/ | {
"a_id": [
"c89xu34",
"c89yte7",
"c89z0cf",
"c89zfmp",
"c8a2nfk"
],
"score": [
6,
8,
64,
3,
22
],
"text": [
"The n-back test is well studied. Google scholar isn't loading on my phone for some reason but you can do a search for academic papers on it there.\n\nThere... | [] | [] | [
[],
[
"http://www.sharpbrains.com/book/"
],
[],
[
"http://www.gwern.net/DNB%20FAQ"
],
[]
] | |
8lztw2 | How is laze formed by lava mixing with sea water? | Thank you for the great answers everybody. | askscience | https://www.reddit.com/r/askscience/comments/8lztw2/how_is_laze_formed_by_lava_mixing_with_sea_water/ | {
"a_id": [
"dzjswjr",
"dzkk9k5",
"dzklk9s"
],
"score": [
1315,
22,
20
],
"text": [
"The high-temperature steam produced by the lava entering the ocean hydrolizes the various salts present in seawater, primarily chloride salts. This results in hydrogen from the steam combining wit... | [] | [] | [
[],
[],
[]
] | |
1rghun | from where did country music emerge? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1rghun/eli5_from_where_did_country_music_emerge/ | {
"a_id": [
"cdn69h3"
],
"score": [
2
],
"text": [
"Hank Williams Sr."
]
} | [] | [] | [
[]
] | ||
1v9rkj | Why does the Dutch government reside in The Hague if the capital is Amsterdam ? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1v9rkj/why_does_the_dutch_government_reside_in_the_hague/ | {
"a_id": [
"ceq9muv",
"ceq9mwr",
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"score": [
4,
58,
8
],
"text": [
"Short answer: the seat of political power, nowadays known as *het Binnenhof*, has been in the Hague since 1446. [The wikipedia entry of het Binnenhof](_URL_0_) can give you some more details on the loc... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Binnenhof"
],
[
"http://www.koninklijkhuis.nl/encyclopedie/monarchie/prinsjesdag/ridderzaal/",
"Steljevraag.nl",
"http://www.reddit.com/u/TheDomCook",
"http://english.prodemos.nl/English/Visitor-Centre",
"http://www.steljevraag.nl/viewquestion?questionID=1... | ||
2qjaqu | What exactly did the Jewish aristocracy do in Babylon? | Were they doing slave labor? Or were they doing more suitable tasks like being advisors or scribes? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2qjaqu/what_exactly_did_the_jewish_aristocracy_do_in/ | {
"a_id": [
"cn6oo8k"
],
"score": [
13
],
"text": [
"As a corollary to OP's question:\nWhat was the life of an average Jew in Babylon like? How were the classes divided? Were Jews well integrated into Babylonian society? "
]
} | [] | [] | [
[]
] | |
13dg3s | How true is the statement that the Soviet Union won the World War II in Europe? | The way I understood it was that the Soviets could not have beaten the Germans on the Eastern Front without Allied aid in weapons, vehicles, supplies, etc.. Thus, the true (er) answer was that it was the Allied nations who won rather than any one country. How correct is this? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/13dg3s/how_true_is_the_statement_that_the_soviet_union/ | {
"a_id": [
"c72ytmi",
"c732x96"
],
"score": [
7,
3
],
"text": [
"There are two acceptable answers to this question. Militarily, the Soviet Union wins World War Two. They grind the Germans up, tie down major parts of the German army, and push gigantic distances (while taking serious casual... | [] | [] | [
[],
[]
] | |
185z92 | Okay, so I don't know anything about physics, but this question has been on my mind. | As light approaches a black hole from an angle (not a direct approach), does the black hole alter the direction of the light? Would such an alteration in trajectory cause the light to slow down? And for my followup and actual question, if the trajectory of a non-direct approach is altered and the speed is slowed down, ... | askscience | http://www.reddit.com/r/askscience/comments/185z92/okay_so_i_dont_know_anything_about_physics_but/ | {
"a_id": [
"c8c2w7q"
],
"score": [
5
],
"text": [
"What you're looking for is called [Gravitational Lensing](_URL_2_)... and nothing can go faster than the speed of light (without funky quantum mechanical [jibber](_URL_1_) [jabber](_URL_0_))."
]
} | [] | [] | [
[
"http://en.wikipedia.org/wiki/Faster-than-light",
"http://en.wikipedia.org/wiki/Quantum_entanglement",
"http://en.wikipedia.org/wiki/Gravitational_lens"
]
] | |
1nuoui | why toddlers are happy one moment then screaming and crying the next moment | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1nuoui/eli5_why_toddlers_are_happy_one_moment_then/ | {
"a_id": [
"ccm704l",
"ccm8goo",
"ccmayf5"
],
"score": [
3,
7,
12
],
"text": [
"Because for a toddler a moment is a really long time and lots can happen.",
"Babies process information slowly because their brain cells lack the myelination necessary for fast, clear nerve impulse... | [] | [] | [
[],
[
"http://www.urbanchildinstitute.org/why-0-3/baby-and-brain"
],
[]
] | ||
f6hyof | Why was being able to flank an opponents army so powerful pre-gunpowder? | Why were formations not able to adjust to being attacked from all sides? According to my simple logic, the amount of people actively fighting on each front line would still be approximately the same, so while not having a retreat-route sucks, casualties should be about the same as when both armies clash in a straight l... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/f6hyof/why_was_being_able_to_flank_an_opponents_army_so/ | {
"a_id": [
"fi5bx4t"
],
"score": [
8
],
"text": [
"More can always be said, but the following previous answers are quite excellent explanations.\n\nu/Iphikrates offers a [comprehensive treatment on just this topic here](_URL_0_), and u/theshadowdawn has a [similar answer here](_URL_1_), with spec... | [] | [] | [
[
"https://old.reddit.com/r/AskHistorians/comments/8gt4bc/why_didnt_spearmen_just_spin_around_when_being/",
"https://old.reddit.com/r/AskHistorians/comments/bf9val/why_was_being_surrounded_so_bad_in_antique/"
]
] | |
fxn3bd | why do so many animals like deer, boars, and tapirs all have dapple camouflage only when they are babies? why do they lose it when they grow older? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fxn3bd/eli5_why_do_so_many_animals_like_deer_boars_and/ | {
"a_id": [
"fmvd2h7",
"fmvfrrd",
"fmvftdp"
],
"score": [
13,
4,
2
],
"text": [
"I think I’ve heard that the camouflage babies have only really works if they’re sitting completely still, which is fine because their parents will bring them food. But when they move, those spots becom... | [] | [] | [
[],
[],
[]
] | ||
33ict6 | why do loud noises (e.g gun shots) trigger car alarms? | Is it a safety feature built in my car manufactures or some sort of regulation? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/33ict6/eli5_why_do_loud_noises_eg_gun_shots_trigger_car/ | {
"a_id": [
"cql5emx",
"cql6a35"
],
"score": [
4,
5
],
"text": [
"Loud noises make the air vibrate. The louder the sound, the greater the magnitude of the vibration. The sensor in the car also vibrates because of this and it goes off.",
"(10+ years selling/installing car security)\n\nT... | [] | [] | [
[],
[]
] | |
4ukddo | how do people "live" in an embassy for extended periods of time? i've never visited an embassy, are they like hotels or something or it just a very awkward situation? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ukddo/eli5_how_do_people_live_in_an_embassy_for/ | {
"a_id": [
"d5qezsd",
"d5qkfq4"
],
"score": [
28,
6
],
"text": [
"It really depends on the countries involved and the situation. A lot of embassies are nothing more than office buildings with no living accommodations.\n\nThe U.S. Embassy in London is an office building and the U.S. amabss... | [] | [] | [
[],
[]
] | ||
2e61mt | how do soldiers in modern armies accurately direct artillery fire? | In movies, it is very common to see soldiers direct accurate artillery fire with their radios. How exactly is this firing process done though ie. how does a soldier on the ground who may or may not know exactly where he/she is direct artillery against enemies? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2e61mt/eli5_how_do_soldiers_in_modern_armies_accurately/ | {
"a_id": [
"cjwdyt4",
"cjweatu",
"cjweu77"
],
"score": [
3,
2,
55
],
"text": [
"Firstly, thanks to GPS, soldiers usually know where they are. Secondly, movies never show the whole process. In reality soldiers call in artillery, then stay on the radio to guide them in \"a little ... | [] | [] | [
[],
[],
[]
] | |
254wq0 | What was the role of light infantry in Napoleonic era battles? | I was just curious on their roles in battle containing hundreds of thousands of men. I know they were used as skirmishers, but what does that entail? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/254wq0/what_was_the_role_of_light_infantry_in_napoleonic/ | {
"a_id": [
"chdt0q7"
],
"score": [
3
],
"text": [
"So, first I'll unpack a few things. What I will be talking about is mainly focused on the French Imperial Army, I don't know enough of the other army compositions to help but I am sure that we have the right people to help. Second, within the Fre... | [] | [] | [
[]
] | |
87hlmy | why does so many people hate the baby boomer generation? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/87hlmy/eli5_why_does_so_many_people_hate_the_baby_boomer/ | {
"a_id": [
"dwcvoz9"
],
"score": [
3
],
"text": [
"The current economic, political, and environmental climates were almost entirely influenced by members of that generation to where they are today.\n\nThe housing market, education costs, this team mentality for politics, climate, all are in prett... | [] | [] | [
[]
] | ||
4asn7z | why does this paper shatter after being folded seven times with a hydraulic press? | _URL_0_ | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4asn7z/eli5_why_does_this_paper_shatter_after_being/ | {
"a_id": [
"d136mo0",
"d13871x"
],
"score": [
12,
5
],
"text": [
"Paper, when folded in half, effectively doubles its thickness. When folded six times in half, there is too much thickness and not enough surface area for anything to make an effective seventh fold.\n\nHowever, the hydraulic... | [] | [
"https://youtu.be/KuG_CeEZV6w"
] | [
[],
[
"https://www.reddit.com/r/explainlikeimfive/comments/4alxf1/eli5_what_the_hell_happened_here_after_folding_a/"
]
] | |
2r929b | why can i usually smoothly fast forward a digital video (netflix, hbo go, dvds, etc) but reverse playback is always a jerky mess? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2r929b/eli5why_can_i_usually_smoothly_fast_forward_a/ | {
"a_id": [
"cndkton",
"cndp09r"
],
"score": [
2,
3
],
"text": [
"Digital video generally only actually stores a few frames then just stores what changed. Like if it's a closeup of someone talking frame to frame it'll be 80% the same so it just stores the first frame then a bunch of small ... | [] | [] | [
[],
[]
] | ||
2mstgc | Why are things from the past so far underground? In millions of years when our skeletons are where the dinosaurs skeletons are now, where did the old ground go? Where did the new ground come from? | askscience | http://www.reddit.com/r/askscience/comments/2mstgc/why_are_things_from_the_past_so_far_underground/ | {
"a_id": [
"cm7igiv",
"cm7ipd6",
"cm7mpwp"
],
"score": [
70,
6,
17
],
"text": [
"If you drop dead right now and left your body to nature, you won't end up underground like fossils. Scavengers will pull you apart and eat you, you will rot and the rains and ravages of time will remo... | [] | [] | [
[],
[],
[
"http://www.burgess-shale.bc.ca/discover-burgess-shale/burgess-shale-fossils-and-their-importance",
"http://burgess-shale.rom.on.ca/en/science/burgess-shale/02-geological-background.php"
]
] | ||
2lyl4j | Following the death of Augustus, why didn't he wish full power to go back to the Senete? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2lyl4j/following_the_death_of_augustus_why_didnt_he_wish/ | {
"a_id": [
"clzgput"
],
"score": [
11
],
"text": [
"*EDIT: While I love the period, I'm not an expert, so please read /u/LegalAction's counterpoints below.*\n\nThere is an overly idealised fantasy, portrayed in for example the film Gladiator though it is not limited to Hollywood, of the Roman Rep... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Sulla",
"http://www.reddit.com/r/AskHistorians/comments/2ljtpu/how_did_the_romans_during_the_principate_the/clwe5yg"
]
] | ||
39xzeb | in what sense have creditors been "pillaging" greece for the past five years? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/39xzeb/eli5_in_what_sense_have_creditors_been_pillaging/ | {
"a_id": [
"cs7gdli",
"cs7h3gg"
],
"score": [
2,
2
],
"text": [
"Greeks feel that the austerity measures imposed on Greece by it's creditors, which are enforced because the lenders feel they will make the greek economy more competitive and a more attractive target for investment, aren't a... | [] | [] | [
[],
[]
] | ||
45tp29 | Why were there so few violent border changes between the Christian Iberian kingdoms? | Apart from the Reconquista, the kings in Iberia didn't attack anyone for land it seems in videos like [this one](_URL_0_), why? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/45tp29/why_were_there_so_few_violent_border_changes/ | {
"a_id": [
"d00e6hg"
],
"score": [
4
],
"text": [
"A reply to /u/HenkWaterlander ,\n\nMaybe you can clarify what assertion you are questioning, because your wording is ambiguous. Are you suggesting that the Christian kingdoms of Iberia had very little among themselves *before* the Reconquesta? Ho... | [] | [
"https://youtu.be/pmtzmqLOAVA"
] | [
[]
] | |
8xrtcl | How are human skulls or other complex body structures posthumously extracted from a cadaver for use in museums or medical schools? | I recently visited a museum which had an exhibit on strange deformities, including several deformed skulls and other bones. Some were discovered through archeology, but it seemed that the vast majority were from modern times. How is something as complex as a skull removed from a dead body and cleaned? | askscience | https://www.reddit.com/r/askscience/comments/8xrtcl/how_are_human_skulls_or_other_complex_body/ | {
"a_id": [
"e25pn80"
],
"score": [
6
],
"text": [
"There are a combination of methods. One is maceration. Basically, it involves removing as much of the soft tissue as is practical, then allowing the rest to decompose under controlled conditions, often in temperature-controlled water, until the... | [] | [] | [
[]
] | |
b3of9a | how does the human body tend to itself when you havent eaten for days? what about havent drank? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b3of9a/eli5_how_does_the_human_body_tend_to_itself_when/ | {
"a_id": [
"ej0y7m9",
"ej0y7ux"
],
"score": [
9,
2
],
"text": [
"There's a general rule of threes for your body's survival. 3 weeks without food, 3 days without water and 3 mins without air.\n\nWithout food, your body starts to consume its reserves. First to be consumed is the sugar reser... | [] | [] | [
[],
[]
] | ||
5zkn4m | if my car is on a steep downward incline and i put it into reverse gear, why does it roll backward up the hill even if i don't press the accelerator? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5zkn4m/eli5_if_my_car_is_on_a_steep_downward_incline_and/ | {
"a_id": [
"deyta7b"
],
"score": [
2
],
"text": [
"Because you put it in reverse gear. So long as the engine is producing enough power to move the car, and the clutch is capable of translating that much power without slipping, the car is going to move, otherwise the engine is just going to stall ... | [] | [] | [
[]
] | |
j7etv | please expain noam chomsky and his
views on the ideal type of governance li12 | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j7etv/please_expain_noam_chomsky_and_his_views_on_the/ | {
"a_id": [
"c29sp85",
"c29sp85"
],
"score": [
4,
4
],
"text": [
"I don't think Chomsky can be properly explained in the format of an ideal form of government (maybe he can, but it'd hurt the LI12-level of it all).\n\nAt the heart of Chomsky's political thought is the question of authority... | [] | [] | [
[],
[]
] | ||
6h8eay | How, and why, do ants make new hills? | I am under the impression that each ant hill have only one queen. Can queen ants give birth to another queen? And why would they leave the hill? | askscience | https://www.reddit.com/r/askscience/comments/6h8eay/how_and_why_do_ants_make_new_hills/ | {
"a_id": [
"diwdgf0",
"diwxibv"
],
"score": [
9,
2
],
"text": [
"An \"anthill\" is just one extension of an ant hive that reaches the surface. The hills form when dirt is left by the entrance of the hills.\n\n_URL_0_\n\nAdditionally, some species of ants have more than one queen per colon... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Ant_colony",
"https://en.wikipedia.org/wiki/Queen_ant"
],
[]
] | |
1l0tq5 | In a _URL_0_ photoplasty, one of the facts stated that if you were a child in England in the middle ages you would have been sewn into your winter clothing until spring. Can anybody give information on this? Is it even true? | Here is the specific picture I am talking about:
_URL_0_ | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1l0tq5/in_a_crackedcom_photoplasty_one_of_the_facts/ | {
"a_id": [
"cbupdbf",
"cburh2e",
"cbuyg55"
],
"score": [
18,
61,
19
],
"text": [
"What happened here?",
"I can't say that it's never happened, but it seems unlikely that it was widespread. A quick review of a handful of texts doesn't show anything suggesting that this was typi... | [
"cracked.com"
] | [
"http://i.crackedcdn.com/phpimages/photoshop/9/1/6/202916_slide.jpg?v=1"
] | [
[],
[],
[
"http://molcat1.bl.uk/IllImages/Kslides/mid/K038/K038475.jpg",
"http://www.wga.hu/detail/m/memling/3mature3/25more1.jpg",
"http://www.forest.gen.nz/Medieval/articles/garments/H44/H44.html",
"http://www.flickr.com/photos/26872131@N07/3177675770",
"http://www.wga.hu/detail/c/christus... | |
16sjv9 | How often did people in various time periods hear music? | There are a few periods I myself am interested in. Other people here should contribute if they can answer about other periods. One, America in 1910. Two, China during the Han dynasty. Then, Ancient Greece and Ancient Rome(Roman Republic and Caesarian Dynasty). Lastly, Germany in the latter half of the 1800s. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/16sjv9/how_often_did_people_in_various_time_periods_hear/ | {
"a_id": [
"c86q04e"
],
"score": [
3
],
"text": [
"Before the advent of recording, music was fairly rare, but depended on the situation (especially social class). I can comment briefly on America in 1910 and Germany post-1850.\nIn 19th century Germany, music would have been heard in church, wher... | [] | [] | [
[]
] | |
27y49l | why do i get impulses to do things that i would never ever act on? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/27y49l/eli5_why_do_i_get_impulses_to_do_things_that_i/ | {
"a_id": [
"ci5ip2q",
"ci5jhek"
],
"score": [
17,
2
],
"text": [
"The latest scientific thinking on this is that it's an evolutionary adaptation which actually makes you less likely to do dangerous stuff.\n\nIf a person has a tendency to imagine things like jumping off cliffs or attacking... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Intrusive_thoughts"
]
] | ||
a5yxul | why is there a gust of air when you open a door to the subway station? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a5yxul/eli5_why_is_there_a_gust_of_air_when_you_open_a/ | {
"a_id": [
"ebqc9mm"
],
"score": [
6
],
"text": [
"they keep the pressure higher in the station in order to help evacuate fumes etc from the platforms "
]
} | [] | [] | [
[]
] | ||
7sgukb | why are so many people with mental illnesses successful? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7sgukb/eli5_why_are_so_many_people_with_mental_illnesses/ | {
"a_id": [
"dt4m3j7",
"dt4mbek"
],
"score": [
2,
2
],
"text": [
"Some forms of mental illness can be defeated with effort (such as dyslexia). Other such as certain kinds of bi-polar or OCD can actually be beneficial in certain kinds of job as the manic periods or obsessive traits make the... | [] | [] | [
[],
[]
] | ||
mab0c | Can a brain completely deprived of sensory input perceive time? | I wonder, with no outside reference, if the human brain has way to tell that time has passed. I have heard that people in sensory deprivation tanks lose track of time, but what if, somehow, no sensory input made it to the brain at all, would it be able to perceive the passing of time?
Thanks, Science is Awesome < 3
... | askscience | http://www.reddit.com/r/askscience/comments/mab0c/can_a_brain_completely_deprived_of_sensory_input/ | {
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"c2zc0gh",
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"c2zd95y"
],
"score": [
2,
19,
4,
3,
2,
2,
19,
4,
3,
2
],
"text": [
"The brain would presumably need to spend all o... | [] | [] | [
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Isolation_tank"
],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Isolation_tank"
]
] | |
2diiaz | how is it that light appears to travel at the speed of light relative to everything else if all of space-time is relative? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2diiaz/eli5_how_is_it_that_light_appears_to_travel_at/ | {
"a_id": [
"cjpt4l4",
"cjpt6ct"
],
"score": [
8,
2
],
"text": [
"Because \"all of space-time is relative\" is not the full concept. In full, the Special Theory states (roughly) \"all of space-time is relative except for the speed of light in a vacuum, which is always constant no matter wh... | [] | [] | [
[],
[]
] | ||
2o4vij | Did Roman occupation of areas end suddenly (England 410 AD) or did they slowly withdraw over many years or even decades? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2o4vij/did_roman_occupation_of_areas_end_suddenly/ | {
"a_id": [
"cmjt59i",
"cmjuwv1",
"cmjvo9l"
],
"score": [
6,
3,
28
],
"text": [
"What I'm about to say is heavily debated so be careful.\n\nFor a start how do we define Roman administration? if we define it was direct rule from Rome then Roman control had been slipping for a while,... | [] | [] | [
[],
[],
[]
] | ||
4r3a11 | how is the design of the u.s. gov't "deliberately inefficient"? | I've heard from experts in political theory and gov't that the design of the US gov't was deliberately made to be inefficient, mainly for the purpose of guaranteeing that no one would ever have excess power, compromises would have to be made to make sure everyone would get what they wanted at some point, etc.
This fee... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4r3a11/eli5_how_is_the_design_of_the_us_govt/ | {
"a_id": [
"d4xxosd",
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"d4y1jy9",
"d4y3gru"
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"score": [
2,
86,
38,
2,
2
],
"text": [
"Could you elaborate on what you mean by inefficient? Inefficient at what exactly? Do you just mean slow to change in general?",
"The checks and balanc... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Federalist_No._10",
"https://en.wikipedia.org/wiki/The_Federalist_Papers"
],
[],
[],
[]
] | |
1dkolg | How is it that it took until the mid 19th century for people to understand the negative correlation between keeping a wound clean, and that wound becoming infected? | Over all those thousands of years, with millions of data points, particularly in wars and natural disasters, nobody noticed that keeping a wound covered and clean helped it heal faster? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1dkolg/how_is_it_that_it_took_until_the_mid_19th_century/ | {
"a_id": [
"c9r8yly",
"c9r90r6"
],
"score": [
21,
15
],
"text": [
"This has more to do with differing definitions of \"clean\" than it does with people in the past being stupid. Dressings were expected to kept fresh. People spend a lot of time covered in dirt and grime, but manage not to... | [] | [] | [
[],
[]
] | |
2eq1bx | How tall was King Louis XVI of France? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2eq1bx/how_tall_was_king_louis_xvi_of_france/ | {
"a_id": [
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"The real height of Louis XVI is not known. However, his coronation \" outfit \" is between 1,90m and 1,93m. \n\nThe tallest King of France was François Ier which was described to be between 1,95m and 2,00m however, thanks to one of his armour, hi... | [] | [] | [
[]
] | ||
1ytk7z | why aren u.s isps only targeting netflix and not the likes of youtube or hulu? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1ytk7z/why_aren_us_isps_only_targeting_netflix_and_not/ | {
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"c... | [] | [] | [
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[],
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"http://static.ongamers.com/uploads/scale_medium/0/3/5310-0868652966-MK-CJ.jpg"
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1wsctu | if losing weight is just about burning more calories than you eat, why would avoiding carbohydrates help? | Related: what happens if I basically tried starving myself to lose weight? EDIT - one of the few threads where I could walk out more confused than I walked in. I need someone biology-savvy for this. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1wsctu/eli5_if_losing_weight_is_just_about_burning_more/ | {
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"Food isn't all used as energy. Fat has more calories than carbs, and protein has similar calories as carbs. But fat and protein are used by your body to build and repair tissues, fat is also used to bu... | [] | [] | [
[],
[],
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"www.bodyrecomposition.com",
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23p3g9 | Does the surface of our planet have areas that are more susceptible to meteor and comet impacts? (i.e. do certain regions get hit disproportionately compared to others? and if so, why?) Alternatively, do all regions have an equal chance of being struck? | askscience | http://www.reddit.com/r/askscience/comments/23p3g9/does_the_surface_of_our_planet_have_areas_that/ | {
"a_id": [
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"I work in a department of meteoriticists and proposed this question to them, because a lot of the meteorites they study come from Antarctica.\n\nSo, I asked if there was a bias towards meteorites falling near the poles, or was it just because the... | [] | [] | [
[]
] | ||
5ykeki | If heat rises, wouldn't turning on a ceiling fan raise the ambient temperature underneath? | askscience | https://www.reddit.com/r/askscience/comments/5ykeki/if_heat_rises_wouldnt_turning_on_a_ceiling_fan/ | {
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"text": [
"Any kind of circulation will make you feel cooler.\n\nThe reason you sweat is to expel heat from your body. As it evaporates, it takes the heat with it. The p... | [] | [] | [
[],
[],
[],
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"https://en.wikipedia.org/wiki/Wind_chill"
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[]
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4q8lt9 | i saw two squirrels fighting in a tree, they fell off the branch and tumbled about 30 feet to the floor without seeming to break their fall when they landed. they then got up and ran off. how did they not sustain the kind of terrible injuries i would falling from that height? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4q8lt9/eli5_i_saw_two_squirrels_fighting_in_a_tree_they/ | {
"a_id": [
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"text": [
"An ant can survive a fall from any height. You could drop one out of an airplane, and it would survive the impact. The ant is fine because it is so light. It isn't the hitting the ground that kills you, it's your own mass that crushes you after h... | [] | [] | [
[]
] | ||
8cwqw8 | Was there a large amount of fear in the 1930s that the Spanish Civil War would spill out into a larger regional or even global conflict? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8cwqw8/was_there_a_large_amount_of_fear_in_the_1930s/ | {
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"Certainly.\n\nThis fear was such, that, early on, a non-intervention agreement was signed by many European countries in August of 1936, which created the aptly named Non-Intervention Committee. The mo... | [] | [] | [
[],
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3w93cb | how is a movie made for vhs and dvd converted to be a blu-ray? | So I use to watch this movie "Spirited Away". The movie was released in September 20, 2002 (Source: IMDB). The movie was released for VHS and DVD. I recently went to look on eBay to buy a copy, but during my search, I found several options for blu ray??
how is that possible? Can it really be "TRUE" Blu-Ray quality? ho... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3w93cb/eli5_how_is_a_movie_made_for_vhs_and_dvd/ | {
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"text": [
"Film - the original clear plastic stuff with thousands of pictures on it - is actually much higher resolution than DVD, BluRay or even 4K. Provided you have access to it, you can convert it to whatever ... | [] | [] | [
[],
[],
[]
] | |
2k4sv7 | what in the world is half life 3? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2k4sv7/eli5_what_in_the_world_is_half_life_3/ | {
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"text": [
"Op's name is 6 letters\n\nQuestion is about HL3\n\n6 divided by 3 is 2\n\nHL2 comes before... | [] | [] | [
[],
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[],
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"http://knowyourmeme.com/memes/half-life-3-confirmed"
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[],
[],
[],
[]
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4cnpun | What role did slavery have in the industrial revolution, if any? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4cnpun/what_role_did_slavery_have_in_the_industrial/ | {
"a_id": [
"d1k9qle"
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"(1/2)\n\nWell, you've inadvertently waded into what is probably the biggest ongoing debate in the historiography of slavery in North America right now! There is a huge debate raging at the moment regarding the exact role slavery has had to play ... | [] | [] | [
[]
] | ||
1246vt | I'm interested in military formations and how they actually work -- what made them effective against certain types of combat, etc. Any links or videos about this stuff? | For instance, I read somewhere that hollow squares are good for repelling cavalry? How does that work? What is the thought process behind naval formations? Or fighter jet formations? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1246vt/im_interested_in_military_formations_and_how_they/ | {
"a_id": [
"c6s048v",
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"text": [
"This is too wide a topic to cover in a single post so let me deal with the one question you specifically asked. The hollow square (as a pike formation mostly) works well against cavalry for a couple of reasons. Firstly, the ... | [] | [] | [
[],
[]
] | |
7kb26s | why do all these food companies have non gmo-labels on their products? is it propaganda? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7kb26s/eli5eli5why_do_all_these_food_companies_have_non/ | {
"a_id": [
"drcwmgq"
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"score": [
5
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"text": [
"If it's not a modified organism then they're not lying. I could poop in your salad and certify it as non gmo"
]
} | [] | [] | [
[]
] | ||
lclui | Why can't we use animal embryonic stem cells? | Or can we? If animal parts are regularly transplanted into humans, and embryonic stem cells are very similar in most species (presumably reducing the chance of rejection) why can't we extract them from animal embryos for a slightly more ethical solution?
Does the DNA of donor and recipient need to be identical? | askscience | http://www.reddit.com/r/askscience/comments/lclui/why_cant_we_use_animal_embryonic_stem_cells/ | {
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"text": [
" > presumably reducing the chance of rejection\n\none of the biggest reasons for why we would want to use stem cells is to *prevent* rejection. if i donate my kidney to some guy, h... | [] | [] | [
[],
[],
[],
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] | |
3gcmzd | What are some ways to test microbial evolution as an experiment? | From what I have researched, most of the experiments are related to antibiotic resistance. But, I can't find anything specific
Cn you suggest other/specific ways to test microbial evolution? | askscience | http://www.reddit.com/r/askscience/comments/3gcmzd/what_are_some_ways_to_test_microbial_evolution_as/ | {
"a_id": [
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"score": [
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"text": [
"You might be interested in Richard Lenski's long-term evolution of E. coli [experiment](_URL_0_). "
]
} | [] | [] | [
[
"https://en.wikipedia.org/wiki/E._coli_long-term_evolution_experiment"
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] | |
7iw3kt | Did ancient cultures have any concept of the waxing and waning of the moon being caused by Earth casting a shadow? | Was it always "the moon is shrinking, the moon is getting bigger," or what? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7iw3kt/did_ancient_cultures_have_any_concept_of_the/ | {
"a_id": [
"dr1uaea"
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"text": [
"Just as a point of clarification: the waxing and waning of the moon are not caused by the earth's shadow; it is a result of the moon rotating around the earth, and from our perspective, the full half of the moon that is illuminated by the sun app... | [] | [] | [
[]
] | |
20eoc8 | how is it that marijuana is legal in some places in the us, but there are many people in jail for possession? if weed becomes legal in more places, what happens to those in jail for possession? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/20eoc8/eli5_how_is_it_that_marijuana_is_legal_in_some/ | {
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3,
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"text": [
"They stay in jail",
"They will remain in jail, absent some executive clemency. Everyone is subject to the laws in place at the time... | [] | [] | [
[],
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1x10ej | why is backwards video understandable while backwards audio is incomprehensible? | When you're watching a video that you know is backwards the sequence of images makes sense, and you can even predict what will happen next. But if you listen to some backwards audio not only can you not predict what sound you will hear next, but it's very hard identify the sound at all. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1x10ej/eli5_why_is_backwards_video_understandable_while/ | {
"a_id": [
"cf75s10"
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"score": [
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"text": [
"It is because in a video we can see the actions leading up and proceeding from that action, while audio, the sound is laid out in a very specific way. (English phonetics are very complicated) When a small thing is changed, it becomes nearly impos... | [] | [] | [
[]
] | |
ci590b | How did 0-60 become the standard by which a car's acceleration is judged? Why did 60mph become synonymous with "fast"? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/ci590b/how_did_060_become_the_standard_by_which_a_cars/ | {
"a_id": [
"ev2wyrr"
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"text": [
"Automotive journalist here. \n\nYour question is intimately tied to the history of automotive magazines, and I’m not aware of a really good, academic history exploring that. I can tell you that the form itself dates back to the earliest days ... | [] | [] | [
[]
] | ||
12uvl4 | What happened to ancient cities such as Sparta, Carthage and Troy? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/12uvl4/what_happened_to_ancient_cities_such_as_sparta/ | {
"a_id": [
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"text": [
"All were destroyed; Troy before the Golden Age of Greece, Carthage by a victorious Rome around 150 BC, and Sparta was sacked by the Goths around 400 AD after centuries of empty autonomy as a curiosity within the Roman Empi... | [] | [] | [
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"http://en.wikipedia.org/wiki/Tsakonian_language"
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"http://commons.wikimedia.org/wiki/File:Layers_of_Troy.JP... | ||
3s8fwt | what is going on in missouri and at yale with super liberal student protests? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3s8fwt/eli5what_is_going_on_in_missouri_and_at_yale_with/ | {
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"Yeah! So the faculty sent out an email telling the student body not to be super racist and wear offensive costumes on halloween. Then a professor responded to that email saying that it wasn't the school's responsibility to police students like th... | [] | [] | [
[]
] | ||
7mikn7 | why does driving the same speed feel much faster when it's dark than when it's light | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7mikn7/eli5_why_does_driving_the_same_speed_feel_much/ | {
"a_id": [
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"text": [
"Your field of vision is much shorter at night (the length of your headlights), so things appear to move by you quickly. During the day you see things further down the horizon."
]
} | [] | [] | [
[]
] | ||
544ejw | If I put a flashlight in space, would it propel itself forward by "shooting out" light? | askscience | https://www.reddit.com/r/askscience/comments/544ejw/if_i_put_a_flashlight_in_space_would_it_propel/ | {
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"Yes, very slowly.\n\nLight has moment... | [] | [] | [
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[],
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"https://en.wikipedia.org/wiki/Joule",
"google.com",
"maglite.com"
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1iityj | how debt/credit card transactions work | Like, what happens after I swipe my BofA card at Target, what happens, where is the signal sent, and how. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1iityj/eli5_how_debtcredit_card_transactions_work/ | {
"a_id": [
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"score": [
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2
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"text": [
"It goes to a service called \"Fedwire\". Everyone has different banks, so the backbone is a service provided by the Fed that \"clears\" transactions. \nYou swipe your card and Target's bank infrastructure, say its Chase, nee... | [] | [] | [
[],
[]
] | |
drf4jf | how does a smartphone compass app works if a magnet (in the speakers) are so close to them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/drf4jf/eli5_how_does_a_smartphone_compass_app_works_if_a/ | {
"a_id": [
"f6hoah2"
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"score": [
6
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"text": [
"Because the magnets in the speakers don't need to be very strong and as such aren't going to impact the readings very much. For any impact they do have you can also calibrate the magnetic sensor to ignore it from the speakers as that will be cons... | [] | [] | [
[]
] | ||
b7jv34 | why is it that when we get hit or injured pretty bad we faint? what is it that makes our brain kinda shut down in that moment? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b7jv34/eli5_why_is_it_that_when_we_get_hit_or_injured/ | {
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"text": [
"One reason is that basically the brain is floating in water inside our skulls and if the the blow is strong enough to push the brain with enough momentum to bounce on part of the skull to another and the brain gets short circuited.\nAnother reaso... | [] | [] | [
[]
] | ||
31ollf | How tall was Jesus Christ? | My seminary buddies and I were debating this.
What's the consensus? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/31ollf/how_tall_was_jesus_christ/ | {
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"text": [
"\nThere is no literary or other ancient evidence that directly bears on this question, so one is forced to speculate based on average heights of people in antiquity.\n\nThe only article I've ever seen address this is a 2002 issue of Popular Mecha... | [] | [] | [
[
"http://books.google.com/books?id=VM8DAAAAMBAJ&pg=PA68&lpg=PA68&dq=popular+mechanics+face+of+jesus&source=bl&ots=OZMu3R-xPN&sig=uPy8RWFvUScKF7k9eEiO1jb0km0&hl=en&ei=qCw3TPegEsOAnQfw8pSEBA&sa=X&oi=book_result&ct=result&resnum=7&ved=0CDUQ6AEwBg#v=onepage&q... | |
f39e3m | if modern computers are so extremely powerful, how can it take more than 30 hours to render one frame of cg in a movie? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f39e3m/eli5_if_modern_computers_are_so_extremely/ | {
"a_id": [
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"score": [
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"text": [
"Because 30 hours is the sweet spot. Frames took 30 hours to render 20 years ago, despite the lower computing power available at the time.\n\nIf it took more time it would be very annoying to work with, and if it took less time, we could do more i... | [] | [] | [
[]
] | |
2cwe71 | Spanish Gold Inflation. | Did the huge amount of Gold that the Spanish were shipping from South America and central America to Spain during the 16th and 17th century, cause so much inflation that Gold became virtually worthless as there was so much of it? or is this a myth?
Second question, where did all of that Gold go? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2cwe71/spanish_gold_inflation/ | {
"a_id": [
"cjjnu9j"
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"score": [
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"text": [
"What essentially happened was that the Spanish became importers as opposed to exporters. Spain was so wealthy, that they simply paid for all of the goods they required from other European nations including textiles, weapons, ships even. Spain wou... | [] | [] | [
[]
] | |
54v0fn | why are teslas super fast off the line and yet at a certain point a non-electric super car will catch up to it? | I always see videos of the fastest Teslas vs a super fast car like a lambo. The Tesla it kills it from the start but at a certain point the lambo will catch up and beat it. I understand Teslas have instant torque but does it die off at a certain point? Someone explain, please! | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/54v0fn/eli5_why_are_teslas_super_fast_off_the_line_and/ | {
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2,
6,
2
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"text": [
"As you mentioned already, electric motors provide the full amount of torque instantaneously ,whereas conventional drives need time to build it up. So a powerful electric car will launch of the starting ... | [] | [] | [
[],
[],
[]
] | |
1lsryc | What causes of death allow or rule out organ donation? | After a bit of layman googling, all I could tell was that you needed to be brain stem dead but with your circulation and respiratory functions still going or at least put onto life support very quickly. That all seems thoroughly self evident but what causes of death lead to these circumstances or don't? | askscience | http://www.reddit.com/r/askscience/comments/1lsryc/what_causes_of_death_allow_or_rule_out_organ/ | {
"a_id": [
"cc2ibma"
],
"score": [
2
],
"text": [
"In order to be declared brain dead there are a number of preconditions that must be met. These can vary slightly in different jurisdictions, but essentially there has to be a known disease process that has resulted in extensive brain damage. The ... | [] | [] | [
[]
] | |
1t9qm4 | How do elements inside cells interact and move to the right places? | Since my childhood my understanding of biology was strongly influenced by this amazing educational cartoon Once upon a time... Life (not sure if you guys had it in the US too). Withe blood cells were police-like characters flying around in some kind of hovercrafts, cels were like big factories and nucleotides(?) were s... | askscience | http://www.reddit.com/r/askscience/comments/1t9qm4/how_do_elements_inside_cells_interact_and_move_to/ | {
"a_id": [
"ce5ts81"
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"score": [
3
],
"text": [
"Most of the processes in the cell occur by diffusion. Meaning a lot of what is happening is random chance, but since cells are small and much more compact than textbooks and animations show, these processes can occur rather quickly. \n\nEnzymes (... | [] | [] | [
[
"https://www.youtube.com/user/armandohasudungan"
]
] | |
38xcqx | if there is a bee in a car and the car is travelling at 50mph, does the bee have to fly faster than 50mph to move from the backseat to the front seat? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/38xcqx/eli5_if_there_is_a_bee_in_a_car_and_the_car_is/ | {
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"text": [
" > Why aren't there smashed insects on the inside of my back window?\n... | [] | [] | [
[],
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r2xsj | "the loudness war", and its effect on music | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/r2xsj/eli5_the_loudness_war_and_its_effect_on_music/ | {
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3,
4,
6,
3
],
"text": [
"Record publishers think that LOL LOUDER = BETTER, when really, if taken to the extent shown [here](_URL_0_), it just makes the music shittier. Of course, if t... | [] | [] | [
[
"http://en.wikipedia.org/wiki/File:Michael_Jackson-Black_or_White_Loudness.png"
],
[
"http://www.christian-gleinser.de/stuff/nin-loudness-1.png"
],
[],
[],
[]
] | ||
a8t1bw | What is the Hercules-Corona Borealis Great Wall? | [deleted] | askscience | https://www.reddit.com/r/askscience/comments/a8t1bw/what_is_the_herculescorona_borealis_great_wall/ | {
"a_id": [
"ecfaud4"
],
"score": [
3
],
"text": [
"Over the largest scales galaxies seem to arrange themselves in a foam like structure with the material we can see sitting where the bubble walls would be. Here is a [picture](_URL_0_) of a universe simulation to give you an impression.\n\nThe Gre... | [] | [] | [
[
"https://principia-scientific.org/wp-content/uploads/2017/06/universe-millennium-simulation.jpg"
]
] | |
dzd61h | can some please explain what a information system architecture is? | Pretty much what the title said. I have to do a group project and everyone just keep throwing formal definitions at me. They're nice but non of that means anything in terms of what I need to research and what components I need to build or incorporate.
Thank you all in advance! | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dzd61h/eli5_can_some_please_explain_what_a_information/ | {
"a_id": [
"f86uqxe"
],
"score": [
3
],
"text": [
"It's basically a diagram of how they want a system or process or *whatever* to work. It's hard to define because it's a pretty vague thing to start with that you can take in many different directions. I bet if your teammates drew you a picture of... | [] | [] | [
[]
] | |
3c1jdr | why is it considered more professional to be clean shaven? | Additional question: Why are clean shaven men typically more powerful and successful? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3c1jdr/eli5_why_is_it_considered_more_professional_to_be/ | {
"a_id": [
"csrfgc2",
"csrhvlt"
],
"score": [
10,
3
],
"text": [
"Primary answer: Beards are easier maintained shaven than left to grow. Not having it there in the first place is considered professional since it implies that the person in question takes hygiene seriously by being willing ... | [] | [] | [
[],
[
"http://www.damninteresting.com/the-troubled-history-of-beards/"
]
] | |
bjyhfp | What happens to all the hair that is shaved off or cut, how does it decompose? | And is there any use for it in terms of benefiting the environment?
Just shaved of my beard after letting it grow for many months. So much damn hair that I threw in the trash. And it got me thinking about all the excess hair after we groom ourselves, and what even happens to it. It must reach tons by now when factori... | askscience | https://www.reddit.com/r/askscience/comments/bjyhfp/what_happens_to_all_the_hair_that_is_shaved_off/ | {
"a_id": [
"emfhjda",
"emkw7db"
],
"score": [
9,
2
],
"text": [
"Hair is a source of nitrogen, and can be composted to make a fertilizer. I've thrown pet hair in the compost bins for years. \n\nI suspect that it might also, in larger quantities, help soil drainage (though I very well coul... | [] | [] | [
[],
[]
] |
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