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 |
|---|---|---|---|---|---|---|---|---|---|
b4wnyh | why do fruits taste so much better when in season | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b4wnyh/eli5_why_do_fruits_taste_so_much_better_when_in/ | {
"a_id": [
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"score": [
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"text": [
"Because the phrase \"in season\" is used by humans to describe the time of year when we most prefer the taste of different fruits."
]
} | [] | [] | [
[]
] | ||
7735gf | How do computers get an exact value for integration and derivatives? | It seems like doing calculus involves a lot of intuition that would be hard for a computer, like a graphing calculator or WolframAlpha, to do. | askscience | https://www.reddit.com/r/askscience/comments/7735gf/how_do_computers_get_an_exact_value_for/ | {
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"doiqcyy",
"doj68n3",
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"score": [
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"text": [
"Differentiation is relatively straightforward and can be done by applying a few simple rules. Integration is the tricky thing. One way that computers integrate is by using the ... | [] | [] | [
[
"https://en.m.wikipedia.org/wiki/Risch_algorithm"
],
[],
[
"https://en.wikipedia.org/wiki/Op_amp_integrator"
],
[
"http://5outh.blogspot.in/2013/05/symbolic-calculus-in-haskell.html?m=1"
]
] | |
12xnh5 | Did Vikings or pirates ever develop moral codes limiting what they could do to their victims? | I'm curious both about legal or social rules in the case of Vikings, and moral decrees from pirate captains. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/12xnh5/did_vikings_or_pirates_ever_develop_moral_codes/ | {
"a_id": [
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"score": [
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"text": [
"A very curious bit of Viking morals: it's wrong to steal, but it's right to take by force. One of the Icelandic sagas tells of a Viking raid in the Baltic, where the Viking party manages to steal stuf... | [] | [] | [
[],
[],
[
"http://upload.wikimedia.org/wikipedia/commons/a/a6/Bartholomew_Roberts_Flag1.svg"
]
] | |
5t5d9b | my father says he can taste the difference between whether i boil the water for his tea over the stove, or, in the microwave (our kettle is bust). is it possible that the water could taste different due to different boiling methods? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5t5d9b/eli5_my_father_says_he_can_taste_the_difference/ | {
"a_id": [
"ddka5t3"
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"score": [
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"text": [
"It could actually! When water is boiled on a stovetop, the impurities (metal ions) that generally settle at the bottom (fall out of colloid/solution) get pushed up with the bubbles of water vapor that form at the bottom of the kettle. \n\nThat c... | [] | [] | [
[]
] | ||
3j813c | why when common people debate abortion it turns into "every sperm is sacred" vs "legalized infanticide" when there is an obvious gray area? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3j813c/eli5_why_when_common_people_debate_abortion_it/ | {
"a_id": [
"cun0m7i",
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"score": [
2,
2
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"text": [
"Because hard set, black and white arguments are easier. They're not more right. They're just easier. It's hard to paint someone as an inhuman monster when you're forced to admit they may be right on some points...or that ... | [] | [] | [
[],
[]
] | ||
csyhve | how did doctors ever think that cigarettes were good for you? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/csyhve/eli5_how_did_doctors_ever_think_that_cigarettes/ | {
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"text": [
"Back then the regulation on corruption and advertising were much looser. Big tobacco companies would pay their own doctors to conducts their own studies and ... | [] | [] | [
[],
[],
[],
[
"https://gizmodo.com/blowing-smoke-up-your-ass-used-to-be-literal-1578620709"
],
[]
] | ||
7gdv9o | Is there a limit to the number of songs that can be composed? | I am wondering if there is a limit to the number of unique, original tunes (with or without lyrics) that can be composed before they start to get repeated.
If yes, what criteria is it dependant on? | askscience | https://www.reddit.com/r/askscience/comments/7gdv9o/is_there_a_limit_to_the_number_of_songs_that_can/ | {
"a_id": [
"dqiecq9"
],
"score": [
28
],
"text": [
"Composed? No. The space of time limited [continuous signals](_URL_2_) is of course uncountably infinite. \n\nDifferentiated? Yes. To explain this, we have to make two assumptions, \n\n * each song can be reproduced with some maximum amount of po... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem",
"https://en.wikipedia.org/wiki/Shannon%E2%80%93Hartley_theorem",
"https://en.wikipedia.org/wiki/Continuous_signal",
"https://www.tutorialspoint.com/signals_and_systems/images/signal_sampling.png",
"https://en.wikipedia.o... | |
15alod | Is there an estimate for what percentage of the population is completely free from mental illness ? | askscience | http://www.reddit.com/r/askscience/comments/15alod/is_there_an_estimate_for_what_percentage_of_the/ | {
"a_id": [
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"text": [
"I can't answer that question, but it's a difficult one to answer in the first place because \"mental illness\" is not a quantized or definite term. Mental health is a spectrum and what some people might call mentally ill oth... | [] | [] | [
[],
[
"http://abcnews.go.com/blogs/health/2012/01/19/1-in-5-americans-suffer-from-mental-illness/",
"http://www.samhsa.gov/data/NSDUH/2k11MH_FindingsandDetTables/2K11MHFR/NSDUHmhfr2011.htm"
]
] | ||
aastni | if space is constantly expanding, are we expanding too due to all of the empty space there is in atoms? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aastni/eli5_if_space_is_constantly_expanding_are_we/ | {
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"text": [
"Short answer: no.\n\nLong answer: Yes, empty space inside of us is expanding. However, its expanding so slowly that all the forces that normally keep us together are able to counteract that expansion, ... | [] | [] | [
[],
[],
[]
] | ||
23y3me | Why is it that we are just now beginning to find so many new planets? | What has changed technologically or otherwise for the sudden increase in newly identified planets? | askscience | http://www.reddit.com/r/askscience/comments/23y3me/why_is_it_that_we_are_just_now_beginning_to_find/ | {
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"text": [
"It mostly arises from the Kepler mission, which was specifically designed to systematically find exoplanets. Before, it was basically astronomers booking ti... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Kepler_(spacecraft)"
],
[],
[]
] | |
3e66i9 | how does the scientists confirm that a planet has water or is possibly habitable? | Also does the process of confirmation gets harder as the distance between earth and said planet/space object increases? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3e66i9/eli5how_does_the_scientists_confirm_that_a_planet/ | {
"a_id": [
"ctbve0v"
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"score": [
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"text": [
"When light passes through a gas like the atmosphere of a planet or star, the molecules that make up the gas absorb light of very specific colors. If you take this light and split it up into a rainbow, you can see dark lines where this light was a... | [] | [] | [
[]
] | |
2lupzd | what's the difference between someone getting arrested, indicted, charged, and subpoenaed? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2lupzd/eli5_whats_the_difference_between_someone_getting/ | {
"a_id": [
"clyc3xa"
],
"score": [
2
],
"text": [
"Arrest is done by a police officer based on either probable cause to believe that you are or have committed a crime, or on a warrant issued by a judge. You are detained and subjected to bail and/or other conditions of release (or held) while awai... | [] | [] | [
[]
] | ||
3ltota | Can someone explain this phenomenon? The coffee in my mug is independent to the motion of myself and the mug. (GIF included with description) | _URL_0_
As you can see in the gif, I am turning counterclockwise and then clockwise with a cup of coffee in my hand. Despite turning, the liquid seems to remain independent to its container, remaining in the orientation of the room. | askscience | https://www.reddit.com/r/askscience/comments/3ltota/can_someone_explain_this_phenomenon_the_coffee_in/ | {
"a_id": [
"cv9tjot",
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"score": [
9,
7,
2
],
"text": [
"Inertia: the resistance of any physical object to any change in its state of motion including changes to its speed and direction or the state of rest. \n\nPlus, low friction coefficient between the sid... | [] | [
"http://gfycat.com/FoolishJovialIbizanhound"
] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Vorticity",
"https://en.wikipedia.org/wiki/Moment_of_inertia"
]
] | |
rav43 | What is the difference between an ordinary headache and a migraine | What is physically happening in my head when I get a migraine? How is a normal headache different? | askscience | http://www.reddit.com/r/askscience/comments/rav43/what_is_the_difference_between_an_ordinary/ | {
"a_id": [
"c44gfv2"
],
"score": [
8
],
"text": [
"To start, migraines are more of a disorder that will happen to a select few sufferers, while headaches are something that can affect everybody. Physiologically, migraines most often include nausea, sensitivity to light, sound, and temperature, an... | [] | [] | [
[]
] | |
14qsyx | What time is it on a space station? | Is it the same as the control station is in contact with, or is there a special time defined on board? | askscience | http://www.reddit.com/r/askscience/comments/14qsyx/what_time_is_it_on_a_space_station/ | {
"a_id": [
"c7fk8ng",
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"score": [
46,
3
],
"text": [
"The time aboard the ISS is Greenwich Mean Time (GMT) -- which is a time zone roughly halfway between Houston and Moscow, where the two main control centers are located. So when astronauts wake up (at around 7:00 GMT), it is... | [] | [] | [
[],
[]
] | |
scz6g | Since the brain is a plastic malleable organ, how does one properly manipulate it to become smarter? | For example, I was reading about a study published in the Journal of Applied Psychology about glycogen and exercise on rats. Rats who had exercised for regularly showed prolonged increases of glycogen levels (7-9% as compared to control group) in the cortex and hippocampus. | askscience | http://www.reddit.com/r/askscience/comments/scz6g/since_the_brain_is_a_plastic_malleable_organ_how/ | {
"a_id": [
"c4d11y0"
],
"score": [
2
],
"text": [
"Things that can help improve synaptic plasticity (and consequently memory performance):\n\n* [Repetition, spaced trials](_URL_1_)\n* Concentration\n* [Sleep](_URL_2_)\n* Some cognitive enhancers like [caffeine](_URL_3_)\n* [Diet and exercise](_UR... | [] | [] | [
[
"http://www.sciencedirect.com/science/article/pii/S0166223609000563",
"http://www.springerlink.com/content/cmqeyygkw73m3c82/",
"http://www.sciencedirect.com/science/article/pii/S0959438806001474",
"http://iospress.metapress.com/content/lw1630245745v088/"
]
] | |
3i8zyn | how can incredibly complex software programs be so tiny in size, yet simple files like movies or audio can be several gb? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3i8zyn/eli5_how_can_incredibly_complex_software_programs/ | {
"a_id": [
"cuec25y",
"cuec9lq"
],
"score": [
3,
3
],
"text": [
"Software programs are nothing but text in a file (really binary) with some graphics.\n\nA movie is millions of pictures. Its immensely more data.",
"Good question. software programs aren't too big because they are mostl... | [] | [] | [
[],
[]
] | ||
8rcz38 | how do pirates crack game? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8rcz38/eli5_how_do_pirates_crack_game/ | {
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"text": [
"It depends on the game, or rather what type of DRM (anti-piracy software) the game is using. \n\nIn the old days, all you had to do to crack a game was figure out how CD keys were ... | [] | [] | [
[],
[],
[],
[]
] | ||
2r5b55 | why don't food products contain braille? why aren't they blind friendly? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2r5b55/eli5_why_dont_food_products_contain_braille_why/ | {
"a_id": [
"cncl4y1",
"cncldiw"
],
"score": [
2,
3
],
"text": [
"Used to work at Wal-Mart. You can ask the customer service desk for shopping assistance. Past that I have no idea.",
"Not a bad question. In terms of reading nutritional information I can see the benefit.\n\nIn terms of ... | [] | [] | [
[],
[]
] | ||
5qi3gq | if each parent gives half the chromosomes needed for a baby, how do they keep from overlapping some and missing others? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5qi3gq/eli5_if_each_parent_gives_half_the_chromosomes/ | {
"a_id": [
"dczi1qr",
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"score": [
2,
3
],
"text": [
"When working properly, the sex cells (sperm and egg) simply have one example of each pair.\n\nWhen the sex-cells are generated, there can be problems where the gamete does not recieve exactly 1 of each chromosome. If this fl... | [] | [] | [
[],
[]
] | ||
1q1cy4 | Do you favour the "Dark Matter" hypothesis, or do you feel that the statement "Perhaps we simply don't understand gravity well enough" is a more plausible solution? | askscience | http://www.reddit.com/r/askscience/comments/1q1cy4/do_you_favour_the_dark_matter_hypothesis_or_do/ | {
"a_id": [
"cd86grm",
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"score": [
196,
2,
6
],
"text": [
"So we haven't ruled out alternate gravity theories, but the majority of astronomers are definitely in the WIMP dark matter camp. There are alternate gravity people, but it hasn't really caught on at a... | [] | [] | [
[],
[],
[]
] | ||
17k0dh | Does headbanging, dancing, and rapid velocity shifting movements (sports and such), aerobic neck workouts, etc cause brain damage? | I'm wondering if doing neck rotations, head turns, headbanging to music, running in different directions rapidly when playing basketball/soccer/football, and such cause brain damage. Any studies on this? | askscience | http://www.reddit.com/r/askscience/comments/17k0dh/does_headbanging_dancing_and_rapid_velocity/ | {
"a_id": [
"c867udp",
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"score": [
3,
33,
2
],
"text": [
"[Some evidence points to yes,](_URL_0_) but it's hardly a comprehensive study.",
"You're basically asking two different questions (even though you didn't necessarily know you were... how exciting).... | [] | [] | [
[
"http://www.abc.net.au/science/articles/2008/12/18/2449866.htm"
],
[],
[
"http://scholar.google.com/scholar?q=soccer+heading+mri&btnG=&hl=en&as_sdt=0%2C11"
]
] | |
8g2oua | what would happen to us/nature if we planted enough oxygen producing plants to increase the oxygen content of earth's atmosphere by 1%? 5%? 10%? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8g2oua/eli5_what_would_happen_to_usnature_if_we_planted/ | {
"a_id": [
"dy8dav8",
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"score": [
9,
6
],
"text": [
"Higher oxygen content would do two things I can think of off the top of my head.\n\nInsects size is constrained mainly by oxygen content because of how their breathing systems work. If you increased the oxygen content of the... | [] | [] | [
[],
[]
] | ||
1pmpd2 | why are the pi digits so special? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1pmpd2/eli5why_are_the_pi_digits_so_special/ | {
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"text": [
"They are not. Thats the point, Pi is a natural number where it may or may not be possible to find every finite number string.\n\nBy itself Pi is nothing special, the square root of... | [] | [] | [
[],
[],
[],
[
"http://www.youtube.com/watch?v=FpyrF_Ci2TQ"
]
] | ||
loc5p | Do you think with current science and technology, that we could start a colony on another planet? | Mars is ALMOST like earth, minus water and plants, but do you think it could be possible to shape our red neighbor into a livable planet, without the use of re-breathers/space suits?
EDIT: Astrokiwi is very knowledgeable and has kindly explained that Mars is much more different than i thought. Thank you! | askscience | http://www.reddit.com/r/askscience/comments/loc5p/do_you_think_with_current_science_and_technology/ | {
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"c2uat3z",
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"score": [
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"text": [
"Mars is pretty different to Earth. The atm... | [] | [] | [
[],
[],
[],
[
"http://www.astrobio.net/exclusive/814/greening-the-red-planet"
],
[
"http://en.wikipedia.org/wiki/Colonization_of_Venus"
],
[],
[],
[],
[
"http://www.astrobio.net/exclusive/814/greening-the-red-planet"
],
[
"http://en.wikipedia.org/wiki/Colonization_of_Venus"
... | |
cvh80l | Why did the IWW decline so much by the early 1920s? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/cvh80l/why_did_the_iww_decline_so_much_by_the_early_1920s/ | {
"a_id": [
"ey4sogu"
],
"score": [
9
],
"text": [
"The 1907 trial of Big Bill Haywood in Idaho for the murder of former Governor Frank Steunenburg was a first ordeal for the upstart union, and also the most amazing event in US labor history. Read *Big Trouble* by J Anthony Lucas for the incredibl... | [] | [] | [
[]
] | ||
2bfce1 | why is iraq considered an arab state rather than a persian(iranian) one? | To my knowledge "Arab" is a pan-ethnic group. I'm basically looking for what distinguishes an Arab from the other groups in that region. Why do Iranian's reject the term? Are people from the 'Stans (Paki, Afghan, Turkmen, Uzbek, Etc.) Arabs? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2bfce1/eli5_why_is_iraq_considered_an_arab_state_rather/ | {
"a_id": [
"cj4sx30"
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"score": [
4
],
"text": [
"Iraq is a (mostly) Arabic speaking country, full of people who consider themselves Arabs. Iran is not - it is neither Arabic speaking nor do the people consider themselves Arabs (though there's a minority of Arabs living there). \n\nNone of the c... | [] | [] | [
[]
] | |
qlakg | Is there a 'fantastic planet' out there? Could there be a terrestrial planet thousands of times the size of Earth, orbiting a Sun thousands of times as big as ours, inhabited by giant humanoids? | Theoretically, could there be a terrestrial planet thousands of times the size of Earth, orbiting a Sun thousands of times as big as ours, inhabited by giant humanoids? I was reading about geometric scaling of animal life on Earth due to the increased difficulty of absorbing oxygen with bigger organism size. I'm curiou... | askscience | http://www.reddit.com/r/askscience/comments/qlakg/is_there_a_fantastic_planet_out_there_could_there/ | {
"a_id": [
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"score": [
9,
33,
15,
2,
3,
21,
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"text": [
"I'm thinking that, because of gravity, no. A planet several thousand times larger than Earth would have many th... | [] | [] | [
[],
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Wolf%E2%80%93Rayet_star"
]
] | |
20eqqa | why, on the news, is there a large delay for live feeds across oceans but we can play xbox live with people around the world with seemingly instantaneous response? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/20eqqa/eli5_why_on_the_news_is_there_a_large_delay_for/ | {
"a_id": [
"cg2i250",
"cg2i2e6"
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"score": [
5,
4
],
"text": [
"Live TV broadcasts use geostationary satellites which orbit 22 thousand miles up. So a satellite feed has to go 22,000 miles from the broadcast truck to the satellite (actually it will be more as the satellite will not be di... | [] | [] | [
[],
[]
] | ||
3e48jh | why were so many renowned scientists in the 19th-20th centuries from germany and austria? | It seems today that we derive a lot of our scientific methodologies and understanding from the work of German and Austrian scientists during the late 19th century and early 20th century.
Are there particular reasons for this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3e48jh/eli5_why_were_so_many_renowned_scientists_in_the/ | {
"a_id": [
"ctbc5fd",
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"score": [
2,
2,
2
],
"text": [
"We still do! My friend went to Germany recently. The majority of texts in Chemistry are all German. The US has Tech but I can't begin to list the developments in Europe. ",
"In the late 19th and... | [] | [] | [
[],
[],
[]
] | |
3hovx6 | What other dating systems were widely used other than B.C. and A.D.? When were those systems replaced? | Particularly how did they measure time in China and Japan before European influence. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3hovx6/what_other_dating_systems_were_widely_used_other/ | {
"a_id": [
"cu9asds",
"cua85oq"
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"score": [
3,
3
],
"text": [
"The Japanese used *nengo* (年号), eras declared by the imperial court. They didn't have a set length and a new era could be declared for any of a number of reasons: a new Emperor taking the throne, a natural disaster, astrolog... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Qing_dynasty",
"https://www.reddit.com/r/AskHistorians/wiki/books/eastasia#wiki_china"
]
] | |
o5nwe | Do the laws of physics predict that the universe was spontaneously created from nothing? | I was reading [this](_URL_0_) article, in which Stephen Hawking answers people's questions about the universe. A quote:
> The origin of the universe can be explained by the laws of physics, without any need for miracles or Divine intervention. These laws predict that the universe was spontaneously created out of noth... | askscience | http://www.reddit.com/r/askscience/comments/o5nwe/do_the_laws_of_physics_predict_that_the_universe/ | {
"a_id": [
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"text": [
"it's a little simplified. saying \"created out of nothing\" sort of implies that there was nothingness beforehand, which is incorrect. Time itself was created then, so there was no 'beforehand.'\n\nI don't think I helped. ... | [] | [
"http://news.bbc.co.uk/today/hi/today/newsid_9672000/9672233.stm"
] | [
[],
[]
] | |
42ujob | By the 15th century, was the army of the Holy Roman Empire, an army of the empire, or of the emperor's own vassals and land? | After reading multiple different documents about the Italian Wars, the army of Holy Roman Emperors Maximilian the first and Charles the fifth are referred to as "the Imperial Army". Was this army actually an empire drawn from across the empire, and thus truly the army of the Holy Roman Empire, or was it the army that t... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/42ujob/by_the_15th_century_was_the_army_of_the_holy/ | {
"a_id": [
"czd944z",
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"score": [
6,
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"text": [
"Not to be a pedant, but I believe you mean the 16th century (1500-1600) as the two rulers in question ruled then.\n\nIt's a little tricky to answer but my interpretation, is that the only army in continental Europe at the ti... | [] | [] | [
[],
[]
] | |
15f7oo | Did epicanthic folds evolve separately in different parts of the planet or were they spread from a certain focal point? | askscience | http://www.reddit.com/r/askscience/comments/15f7oo/did_epicanthic_folds_evolve_separately_in/ | {
"a_id": [
"c7m3nnr"
],
"score": [
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"text": [
"It pains me that I can't remember the source (a book tracing human migration through separate studies of nuclear and mitochondrial DNA), but I do remember reading that originally all homo sapiens had epicanthic folds, and a mutation in the popula... | [] | [] | [
[]
] | ||
9ev3rd | how do states like monaco and singapore make so much money and have low taxes? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9ev3rd/eli5_how_do_states_like_monaco_and_singapore_make/ | {
"a_id": [
"e5rt8y7"
],
"score": [
7
],
"text": [
"Singaporean here. We are rich because we have low corporate taxes. When it comes to high-skilled, high-salaried industries like banking, petroleum and medicine, the operating costs (skilled labour, input materials, energy costs) are the same worl... | [] | [] | [
[]
] | ||
5un7d5 | Did nations/national identity exist before the modern age? | An anthropologist told me they national identity did not exist before the modern age, but I did read in some articles that many historians do not think that this is true.
So I wanted to know what is your take on this. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5un7d5/did_nationsnational_identity_exist_before_the/ | {
"a_id": [
"ddvlyrn"
],
"score": [
3
],
"text": [
"It really depends on what you mean by national identity. National identity definitely did exist to a degree but was not expressed in exactly the same ways as we do in the modern era. Pre modern national identity is not the same as modern national... | [] | [] | [
[]
] | |
46ije2 | Would an object falling in a vacuum with unlimited space to fall eventually reach the speed of light? | askscience | https://www.reddit.com/r/askscience/comments/46ije2/would_an_object_falling_in_a_vacuum_with/ | {
"a_id": [
"d05etbd",
"d05g5yz",
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"score": [
18,
7,
2
],
"text": [
"Just working with Newtonian gravity, the maximum speed reached by falling towards the surface of an object is the same speed as escape velocity at that surface (both are calculated by equating gravitat... | [] | [] | [
[],
[],
[]
] | ||
18uplt | Are there any musical instruments that need gravity to function? What instrument can you not play while in orbit? | askscience | http://www.reddit.com/r/askscience/comments/18uplt/are_there_any_musical_instruments_that_need/ | {
"a_id": [
"c8i5p31",
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"c8ib0go",
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"score": [
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2,
4,
2,
2
],
"text": [
"Do pianos require gravity? I always thought the hammers \"fell\" back into place after hitting their strings.",
"This is all I can think of, although I wo... | [] | [] | [
[],
[
"http://i.imgur.com/ja3amNB.jpg"
],
[
"http://www.musiciansfriend.com/search.jsp?N=700008&Ns=r&Ntk=ALL&Ntx=mode+matchpartialmax&Nty=1&Ntt=caxixi",
"http://www.musiciansfriend.com/drums-percussion/toca-shekere-with-glass-beads?src=3WWRWXGP"
],
[],
[]
] | ||
410dsu | Do ducks get cold feet in water? | askscience | https://www.reddit.com/r/askscience/comments/410dsu/do_ducks_get_cold_feet_in_water/ | {
"a_id": [
"cyyq39z"
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"score": [
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"text": [
"Yes, and that's part of why the entire duck doesn't freeze. Ducks, other birds, and even some mammals like deer have evolved so that the arteries and veins leading to their feet/hooves/ect. pass very close to each other for quite a long ways. A... | [] | [] | [
[]
] | ||
2fxi31 | if we can smell an item, the item must lose some particles. does that mean it gets lighter constantly? | /r/showerthoughts | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2fxi31/eli5if_we_can_smell_an_item_the_item_must_lose/ | {
"a_id": [
"ckdnlr3",
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"score": [
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2
],
"text": [
"Yes. Things also get heavier from dust particles. You get lighter every time you breathe, because you take in O2 and expel CO2.\n\nBut the amount is so ridiculously small that it's irrelevant.",
"Ablation, erosion. Addit... | [] | [] | [
[],
[]
] | |
np9v2 | Assuming one full rotation of the Earth yearly, would there still be zones on the planet with seasons, or that are mild/temperate year round? | askscience | http://www.reddit.com/r/askscience/comments/np9v2/assuming_one_full_rotation_of_the_earth_yearly/ | {
"a_id": [
"c3b1i6o",
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"score": [
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2
],
"text": [
"The seasons are caused by the Earth's axial tilt, so yes there would still be seasonal temperature changes on the side of the planet receiving sunlight despite the tidal lock.",
"The seasons are caused by the Earth's axi... | [] | [] | [
[],
[]
] | ||
5075tm | -what makes a beer "good?" | I've always been a wine or mixed drink person, but over the past year I've developed more interest in beers. Reading up on them has proven a bit frustrating in regards to deciding what makes a beer "good." | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5075tm/eli5what_makes_a_beer_good/ | {
"a_id": [
"d71pczn",
"d71rmxz",
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"score": [
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2,
2
],
"text": [
"The short version is, it's subjective, and so what is \"good\" is whatever you like the flavor of. However, you can still discuss beer quality by breaking those qualities down into categories.\n\nThing... | [] | [] | [
[],
[],
[]
] | |
64tfkj | Why do electrons come in pairs? | A lot of chemistry talks about bonding pairs, lone pairs etc., but is there a specific reason why they don't come in threes or more? Also I have read about electron spin, but I'm still rather unsure about what that actually means. | askscience | https://www.reddit.com/r/askscience/comments/64tfkj/why_do_electrons_come_in_pairs/ | {
"a_id": [
"dg4x3qk",
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2,
2
],
"text": [
"Any given quantum state can hold at most 2 electrons, because [degeneracy](_URL_0_) of a state is 2s+1, and electrons have spin s = 1/2.\n\n \n > Also I have read about electron spin, but I'm still ra... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Degenerate_energy_levels"
],
[],
[]
] | |
3t9n5z | what is the theological basis for the westboro baptist church "warning" people about stuff? | Given that the Westboro Baptists are Calvinists who believe that a pre-selected group of people are going to heaven and everyone else is going to hell, what would be the point of them "warning" people and "raising awareness" of their so-called sins?
I mean, if God has already decided little Susie is not going to heave... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3t9n5z/eli5_what_is_the_theological_basis_for_the/ | {
"a_id": [
"cx4b3r8"
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"score": [
2
],
"text": [
"Referring not to westboro specifically, this problem arises in a lot of religious organizations as a consequence of human free will and gods plan often seemingly being at odds. Basically even though god has already selected these people only god ... | [] | [
"https://www.reddit.com/r/explainlikeimfive/comments/1wsx96/eli5_what_does_the_westboro_baptist_church/cf5bioc"
] | [
[]
] | |
2t36il | How did the USSR tackle the issue of employment during the decade following WWII? | Were many returning veterans kept on as soldiers, or were they expect to return to their families and farms?
What was the largest source of employment for veterans (obviously the state, but what do they have them doing?)?
How many enlisted soldiers in 1945 became career soldiers? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2t36il/how_did_the_ussr_tackle_the_issue_of_employment/ | {
"a_id": [
"cnvfuy2"
],
"score": [
11
],
"text": [
"The USSR went through an extensive demobilisation process following the war. This was part of the vast, and generally quite successful, programme of reconstruction that retooled and rebuilt the economy. By 1950 the Soviet economic production had... | [] | [] | [
[]
] | |
fzlt6w | how does the hi-lo card counting trick work? | Ive heard of Hi-Lo card counting in Blackjack and wonder how it works, and what the numbers mean | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fzlt6w/eli5_how_does_the_hilo_card_counting_trick_work/ | {
"a_id": [
"fn4xf2m"
],
"score": [
5
],
"text": [
"The casino advantage in Blackjack is about going last. To simplify a bit, the dealer will win every hand where the player goes bust - but the player loses hands where they go bust and the dealer also goes bust (because the game stops before the d... | [] | [] | [
[]
] | |
7q26cj | Is it true that Vikings let women handle their finances because they thought it was witchcraft? | I keep seeing this statement "Vikings made their women take care of their finances because they thought math was witchcraft" and can't find any proof to back it up. Does any one know about this? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7q26cj/is_it_true_that_vikings_let_women_handle_their/ | {
"a_id": [
"dsp1b9z"
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"score": [
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],
"text": [
"We think women controlled the material wealth of Viking-Age households because many wealthy women were buried with a [key](_URL_1_). We assume that within the longhouse, there would have been a locked pantry, and only the matriarch of the househo... | [] | [] | [
[
"https://www.google.com/search?tbm=isch&q=viking+age+weight",
"http://images.google.com/search?tbm=isch&q=viking+age+keys",
"https://www.google.com/search?tbm=isch&q=oseberg+silk",
"https://www.google.com/search?tbm=isch&q=Havhingsten",
"https://www.google.com/search?tbm=isch&a... | |
2p8byg | Are certain areas more prone to see meteors/shooting stars? | Sorry if this question is silly, but I have been wondering this for a while now.
When I was a kid, I remember being told that seeing a shooting star was extremely rare (hence the reason that you wish upon a shooting star). I can only remember one or two times that I saw one growing up. All throughout my childhood, I ... | askscience | http://www.reddit.com/r/askscience/comments/2p8byg/are_certain_areas_more_prone_to_see/ | {
"a_id": [
"cmua6il"
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"score": [
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],
"text": [
"In general, no, no area is more prone to observing meteorite events than any other.\n\nHowever, viewing patterns and environmental effects can make a large difference in observed rates at the individual level. Meteors are most likely to be observ... | [] | [] | [
[]
] | |
26ujg0 | how are sites capable of showing fancy "too busy to load" pages? | As examples, reddit's "too busy to show this page" one has a large image. Wouldn't that put a fairly large amount of stress on servers as well? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/26ujg0/eli5_how_are_sites_capable_of_showing_fancy_too/ | {
"a_id": [
"chulw9r",
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"score": [
2,
2
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"text": [
"Not really.\n\nReddit is stored on a series of servers, and you probably know how that works for the most part.\n\nWhat happens though, is that when you can't access the specific server needed, they often have one set up for... | [] | [] | [
[],
[]
] | |
5ii0mf | Why is anti matter so rare today? | askscience | https://www.reddit.com/r/askscience/comments/5ii0mf/why_is_anti_matter_so_rare_today/ | {
"a_id": [
"db8nswg",
"db9cotr"
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"score": [
3,
2
],
"text": [
"Essentially there are two main theories:\n\n1) CP (charge parity) violations. If reversing charge and parity (flipping in the sign of one spatial coordinate) does not produce exactly the same physics, then the weak force ca... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Baryogenesis"
]
] | ||
19n1ek | If I am traveling through space at the speed of light then how fast is the light from my spaceships headlights moving? | askscience | http://www.reddit.com/r/askscience/comments/19n1ek/if_i_am_traveling_through_space_at_the_speed_of/ | {
"a_id": [
"c8pi0zy"
],
"score": [
3
],
"text": [
"The light from your headlights will propagate at exactly the speed of light, as for you and for any outside observer. The Problem with your argumentation is the same with which any relativity discussion starts, that time is a fixed thing. Accordi... | [] | [] | [
[]
] | ||
3nby8v | what is the difference between regular 3d and other types like imax 3d ? | Also noticed another type called RealD 3D ? What is the difference ? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3nby8v/eli5_what_is_the_difference_between_regular_3d/ | {
"a_id": [
"cvmn6eb"
],
"score": [
5
],
"text": [
"The IMAX 3D projector delivers 3D images of unsurpassed brightness and clarity, unlike any other 3D technology available today. IMAX 3D takes advantage of the fact that we see the world through two eyes. An IMAX 3D movie actually consists of two ... | [] | [] | [
[
"https://www.imax.com/about/experience/3d/"
]
] | |
24tla8 | why don't birds lie down when the sleep? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/24tla8/eli5_why_dont_birds_lie_down_when_the_sleep/ | {
"a_id": [
"cham3pl"
],
"score": [
3
],
"text": [
"Because they don't need to. They're limbs are mainly tendons that lock in place and many birds hang from trees, it's kinda like how horses sleep standing up (their knees lock)\n\nAlso if they lay down they'd just fall out of trees all the time. S... | [] | [] | [
[]
] | ||
1rea1r | Why is the "Water Erosion on the Sphinx Theory" Not Correct or More Popular? | I have a friend who really really believes this theory. Schochs and West and a couple of other Egyptologists have been trying to convince historians that the sphinx is older than previously thought, using evidence of water erosion in the monument as their proof.
I see the photos of it and it looks like water erosion ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1rea1r/why_is_the_water_erosion_on_the_sphinx_theory_not/ | {
"a_id": [
"cdme3em"
],
"score": [
3
],
"text": [
"I had a professor by the name of Peter Lacovara who explained this theory in class and why it is wrong. The body of the sphinx is made up of limestone from a former quarry. Everything around it was cut up and taken away to build the nearby pyrami... | [] | [] | [
[]
] | |
9tmftj | what exactly are "poppers" and how do they work? people who are using, why are you? why should/shouldn't i try? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9tmftj/eli5_what_exactly_are_poppers_and_how_do_they/ | {
"a_id": [
"e8xdvrq",
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],
"score": [
8,
3
],
"text": [
"Poppers are a type of chemical known as alkyl nitrates. They typically come in the form of a liquid contained in a small bottle; by inhaling the vapors coming off this liquid, a brief high is produced.\n\n*This is not the s... | [] | [] | [
[],
[]
] | ||
42icnn | Why has the south of Germany been richer than the north? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/42icnn/why_has_the_south_of_germany_been_richer_than_the/ | {
"a_id": [
"czb6jxg"
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"score": [
3
],
"text": [
"South Germany being the richer half of the country is actually a very recent phenomenon. Over the course of history, the distribution of wealth has changed a lot, depending on political factors as well as the importance of various technologies an... | [] | [] | [
[
"https://de.wikipedia.org/wiki/L%C3%A4nderfinanzausgleich"
]
] | ||
343yc8 | Have there been riots in history that sparked the change they asked for? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/343yc8/have_there_been_riots_in_history_that_sparked_the/ | {
"a_id": [
"cqr4c0u",
"cqr7dki"
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"score": [
4,
2
],
"text": [
"I recently read a great overview of US riots-- Paul gilje's \"rioting in America\". He identifies many, many riots that achieved their goals, from the 17th c to the present.\n\nAmerican rioting, he argues, has strong roots i... | [] | [] | [
[],
[
"http://www.reddit.com/r/AskHistorians/wiki/rules#wiki_no_.22in_your_era.22_or_.22throughout_history.22_questions"
]
] | ||
384p4l | what makes a doctors office smell like a "doctor's office?" | I've been waiting for this doctor for over an hour now and have spent way too much time trying to figure out why this office smells exactly like every other doctor's office I've ever been to. I thought Reddit might be able to help identify what it is that I'm smelling! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/384p4l/eli5_what_makes_a_doctors_office_smell_like_a/ | {
"a_id": [
"crsbavk"
],
"score": [
5
],
"text": [
"Most types of disinfectants that you can purchase for your home are scented in some way.\n\nThe standard cleaning chemicals for hospitals are generally unscented. What you are smelling are the unscented cleaning agents that are applied often beca... | [] | [] | [
[]
] | |
1ge3zx | How could a country like Afghanistan change from being a fairly liberal country to very strict religious? | After seeing [pictures of women from Afghanistan in the 1950s](_URL_0_), I became curious of how this could happen. Which elements needed to be there? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ge3zx/how_could_a_country_like_afghanistan_change_from/ | {
"a_id": [
"cajccqo"
],
"score": [
16
],
"text": [
"Rodric Braithwaite points out in Afgantsy: The Russians in Afghanistan 1979-89, that the 'liberalness' of Afghanistan was only ever really confined the urban middle and upper classes, who were very much a minority, the majority of the rural popu... | [] | [
"http://www.foreignpolicy.com/files/fp_uploaded_images/100527_19-Afghanistan-148.jpg"
] | [
[]
] | |
1o5chw | why should i not drink from my plastic water bottle if it has been sitting in my car for a couple weeks? does it matter if the cap is opened or not? | I basically live in my car (at least 1000km/week) so I store a lot of stuff in there. One of the items is my 24 pack of plastic water bottles that you can get from most grocery stores. Sometimes I finish half of it and throw it in the back seat, which ends up sitting there for quite some time. Should I not be drinking ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1o5chw/eli5_why_should_i_not_drink_from_my_plastic_water/ | {
"a_id": [
"ccowkcq",
"ccowyur",
"ccp2zd1"
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"score": [
2,
2,
2
],
"text": [
"The inside of your car gets hot. Even in the winter, the sun is coming in through the windows. Over time, the heat and sunlight can cause chemicals in the plastic to leech out into your water. It's n... | [] | [] | [
[],
[],
[]
] | |
n6eu6 | Caffeinated Soap Bar, could this even work? How effective is the skin at absorbing chemicals? | _URL_0_
With water constantly running over your body would your skin be exposed long enough to absorb the chemicals? | askscience | http://www.reddit.com/r/askscience/comments/n6eu6/caffeinated_soap_bar_could_this_even_work_how/ | {
"a_id": [
"c36m6hk",
"c36qfps",
"c36m6hk",
"c36qfps"
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"score": [
5,
2,
5,
2
],
"text": [
"That might have interesting effects on kids who swear in front of their mothers.\nThat said, to cross the skin barrier usually requires some sort of solvent to carry the molecule, ... | [] | [
"http://www.thinkgeek.com/caffeine/accessories/5a65/"
] | [
[],
[
"http://www.guardian.co.uk/science/2003/nov/27/thisweekssciencequestions1",
"http://www.erowid.org/ask/ask.php?ID=3010"
],
[],
[
"http://www.guardian.co.uk/science/2003/nov/27/thisweekssciencequestions1",
"http://www.erowid.org/ask/ask.php?ID=3010"
]
] | |
1xp2h8 | what's the point of having and operating cctv if you can rarely actually identify anyone using it? | When people are on the news robbing service stations or things like that, it always strikes me that there seems very little point to having cameras that do very little except be able to identify the clothes someone is wearing etc. Wouldn't it be far more useful to have CCTV of higher quality so we can see people's face... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1xp2h8/eli5_whats_the_point_of_having_and_operating_cctv/ | {
"a_id": [
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"cfddee2",
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"score": [
3,
3,
3,
2,
2,
2
],
"text": [
"people are less likely to commit crimes if they know they are being recorded imho",
"Insurance is cheaper with a CCTV network.",
... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
1ixlp0 | how can words people use all the time "not be words." who decides when something is a word? | I was talking to my dad and I said "I must be misremembering." He said "That's a word invented by Roger Clemens. It doesn't exist."
But it does exist. I just said it and he understood the meaning of the word. Same with a word like conversate, apparently it's a combination of conversation and converse but conversate is... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1ixlp0/eli5_how_can_words_people_use_all_the_time_not_be/ | {
"a_id": [
"cb90zfj",
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"cb92156",
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"cb93omc",
"cb93rrt",
"cb93u4a",
"cb941un",
"cb944i5",
"cb9451m",
"cb94mmj",
"cb950jz",
"cb9573p",
"cb95dh9",
"cb960aq",
"cb96582",
"c... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[
"http://emedia.leeward.hawaii.edu/hurley/Ling102web/mod1_popideas/mod1.8_descvsprescrip.htm"
],
[],
[],
[],
[],
[],
[],
[],
[],
[
"http://www.finedictionary.com/misremember.html"
],
[
"http://etymonline.com... | |
3g3ja3 | Why don't Japanies swords have crossguards? | Simply question really. All of the Japanese swords I have seen or heard of have a tsuba, or some variation of disc guard. Disc guards have always struck me as offering very limited hand protection, especially on a two-handed sword, so why didn't Japanese swords evolve beyond the tsuba? Was there any real advantage or r... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3g3ja3/why_dont_japanies_swords_have_crossguards/ | {
"a_id": [
"ctuk6pu",
"ctule96",
"ctupdkz",
"ctuuspd"
],
"score": [
3,
6,
4,
2
],
"text": [
"Swords are designed for specific styles of fencing and combat. Also, while a crossguard protects your hand, it also hinders your movements, determining how you attack and defend. "... | [] | [] | [
[],
[],
[],
[]
] | |
27ah4j | Was oral hygiene, or lack thereof, ever a deterrent for people to kiss before contemporary methods became available? | Whenever I'm watching Game of thrones or think about times where, presumably, oral hygiene is not near where it is today, and I can't help but think how horrible it must be to kiss someone at the time. Am I seeing this accurately? Has kissing always been a part of people's love lives? And, if so, has this ever been an ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/27ah4j/was_oral_hygiene_or_lack_thereof_ever_a_deterrent/ | {
"a_id": [
"chz3b9x",
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"chz9ork",
"chzfic7"
],
"score": [
370,
69,
168,
15,
13,
40,
6
],
"text": [
"I am not knowledgeable enough on historical oral hygiene practices to answer the first part of your questi... | [] | [] | [
[
"http://www.love-poetry-of-the-world.com/Egyptian-Love-Poetry-Poem2.html",
"http://etcsl.orinst.ox.ac.uk/cgi-bin/etcsl.cgi?text=t.4.08.04#",
"http://themagentahornet.com/ancient-poetry1.html"
],
[],
[
"http://books.google.com/books?id=OtMb_pzRnOoC&pg=PA15&lpg=PA15&dq=jests+of+hie... | |
6rdm3p | the u.s. president is accused of a violent crime; what happens next? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6rdm3p/eli5_the_us_president_is_accused_of_a_violent/ | {
"a_id": [
"dl47bvo",
"dl47uqg"
],
"score": [
2,
2
],
"text": [
"The House of Representatives impeaches him and the Senate holds a trial with the Chief Justice of the Supreme Court presiding. He can't pardon himself in this case.",
"It's an open question about whether a sitting presid... | [] | [] | [
[],
[]
] | ||
26e82d | Did people in British colonies (eg. Canada, Australia, New Zealand) consider themselves British or did they moreover identify with the colony? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/26e82d/did_people_in_british_colonies_eg_canada/ | {
"a_id": [
"chqea47"
],
"score": [
8
],
"text": [
"You may be interested in my answers in these previous threads:\n\n* [At what point did Australians and New Zealanders begin to consider themselves as distinct from the British?](_URL_1_)\n\n* [Why did Great Britain grant independence/autonomy to ... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/1ob29o/why_did_great_britain_grant_independenceautonomy/ccqi7fx?context=3",
"http://www.reddit.com/r/AskHistorians/comments/1sp0tr/at_what_point_did_australians_and_new_zealanders/cdzw49h"
]
] | ||
35i3tt | why is that that wires can be bundled together without interfering with each others signals? | I know that a magnetic field is produced around a conductor whenever current moves through it, and that magnetic field can induce a current in another conductor next to it. Why do bundles of wires not cause signals from each wire to go nuts? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/35i3tt/eli5_why_is_that_that_wires_can_be_bundled/ | {
"a_id": [
"cr4lgkt",
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"score": [
9,
3
],
"text": [
"They can, it's called crosstalk and it's a big design problem. Normally the signals are small enough that the interference is minimal, and can be fixed by spacing the wires apart. When that doesn't work, foil shielding is us... | [] | [] | [
[],
[]
] | |
39xjh9 | How widespread was anarchism as a political movement? | I'm trying to figure out: how relevant was anarchism as a political movement? (I'm thinking primarily of the period of time between when Proudhon was writing in the mid-19th century and the Russian Revolution in 1917.) Was it ever seen by large numbers of people as an alternative to whatever the current state of politi... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/39xjh9/how_widespread_was_anarchism_as_a_political/ | {
"a_id": [
"cs7jnpw"
],
"score": [
2
],
"text": [
"Here's the start of an answer: \"Anarchism\" was not a widely used keyword until 1880 or so, around the time of the establishment of the The International Working People's Association or \"Black International.\" Prior to that, anarchist ideas pla... | [] | [] | [
[]
] | |
601a4c | Why is the Bering Strait never mentioned in the Cold War? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/601a4c/why_is_the_bering_strait_never_mentioned_in_the/ | {
"a_id": [
"df2t96a"
],
"score": [
2
],
"text": [
"It's something like 4000 miles from there to Moscow, and 2000 miles to California. In both cases most of the trip would be across wilderness terrain with no major roads or infrastructure to speak of. In the age of nuclear weapons, the war would b... | [] | [] | [
[]
] | |
g2uthz | In Ancient Rome, who would act as the police detectives? Who would try to figure out who’s guilty for murders so they could have a trial? What methods for investigation would they use? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/g2uthz/in_ancient_rome_who_would_act_as_the_police/ | {
"a_id": [
"fnp4i3m"
],
"score": [
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],
"text": [
"There have been a few previous answers that might be helpful here:\n\n[How easy was it for fugitives to evade capture in the Roman Empire?](_URL_3_) by [u/mpixieg](_URL_2_)\n\n[How were crimes investigated in Roman times?](_URL_1_) by [u/AwesomeD... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/cu1eet/prior_to_dna_evidence_finger_prints_etc_how_did/exw5x58/",
"https://www.reddit.com/r/AskHistorians/comments/avdbto/how_were_crimes_investigated_in_roman_times/",
"https://www.reddit.com/u/mpixieg/",
"https://www.reddit.com/r/AskHistorians/com... | ||
fc7lne | what information can i get from a barometer and how can it be useful for me? | My phone has a barometer and it allows me to check pressure of surrounding air. My current air pressure is 1014 hPa. What does this mean and can I use this information for anything? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fc7lne/eli5_what_information_can_i_get_from_a_barometer/ | {
"a_id": [
"fj91p7d",
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],
"score": [
6,
3
],
"text": [
"Barometers can be used to predict the weather or estimate your altitude. If you put your phone in a bag and submerge it underwater, you can use a bit of math to measure its depth.\n\nMost useful stuff the barometer can do, a... | [] | [] | [
[],
[]
] | |
3wh2yx | how can people argue for mandatory drug testing to receive government benefits? doesnt this violate the constitution through self incrimination? doesnt testing for bac when pulled over also do this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3wh2yx/eli5_how_can_people_argue_for_mandatory_drug/ | {
"a_id": [
"cxw687x",
"cxw6a0i"
],
"score": [
5,
2
],
"text": [
"You are not legally entitled to most government benefits; you must be eligible. If not using illegal drugs is a condition for eligibility, then you can be required to prove that to obtain the benefits. That's not unconstitut... | [] | [] | [
[],
[]
] | ||
4zqe1r | How common was interfaith marriage on the medieval ages? | Also, how unstable was a Christian-Muslim alliance as opposed to a normal union between European christian lords?
And finally, how likely was a lord of a specific religion to give millitary support to their Interfaith friends? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4zqe1r/how_common_was_interfaith_marriage_on_the/ | {
"a_id": [
"d6y2jzb"
],
"score": [
48
],
"text": [
"Great question!\n\nIn the twelfth century Latin Christian attitudes to this question were rather conflicted. On the one hand you have categorical prohibitions against miscegenation and on the other you have early depictions in chronicles and pop... | [] | [] | [
[]
] | |
1m5tb1 | If the universe is supposedly infinite, if we traveled in a straight line, given enough time, would be end up at the initial departure point? | By this I mean, if the universe is infinite with no boundaries, would it be cylindrical and would bend back in on itself at the edges if we ever found the theoretical "edge". Think of it as going to the top edge of a map in a video game and ending up at the bottom edge. | askscience | http://www.reddit.com/r/askscience/comments/1m5tb1/if_the_universe_is_supposedly_infinite_if_we/ | {
"a_id": [
"cc6214s"
],
"score": [
8
],
"text": [
" > would it be cylindrical and would bend back in on itself at the edges if we ever found the theoretical \"edge\". Think of it as going to the top edge of a map in a video game and ending up at the bottom edge.\n\nNo, that would be roughly what ... | [] | [] | [
[]
] | |
4jvibr | How did commonly found specialized organs such as the liver originally develop? | The further evolution of these organs seems relatively straightforward, but how did they appear in the first place? Could some form of symbiotic background between organisms have been possible, perhaps leading to horizontal gene transfer? | askscience | https://www.reddit.com/r/askscience/comments/4jvibr/how_did_commonly_found_specialized_organs_such_as/ | {
"a_id": [
"d3asw2k"
],
"score": [
6
],
"text": [
"The first multi-cellular organisms appeared because of evolutionary advantages of having specialised cells. Some seaweeds, for example, give us a look at what the most primitive multicellular organisms were like - they only have a few specialised... | [] | [] | [
[]
] | |
5vc22s | How much did the Wehrmacht on the Eastern Front know about the German atrocities and the holocaust? For those that were aware of these events (or even participants), how did they rationalize these actions? | I know that the Wehrmacht, though technically separate from the Nazi Party, were instrumental in carrying out the Holocaust on the Eastern Front. But not every soldier of the Wehrmacht could have been an active participant. How much did they know, and how much did they care? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5vc22s/how_much_did_the_wehrmacht_on_the_eastern_front/ | {
"a_id": [
"de28lf4"
],
"score": [
31
],
"text": [
"**Part 1**\n\nI have previously wrote answers to similar questions [here](_URL_0_), [here](_URL_2_), and [here](_URL_3_) and it is not really possible to gauge the number of how many members of the Wehrmacht were directly involved in war crimes,... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/3xc03h/just_how_much_of_the_wehrmacht_was_dirty/",
"https://www.reddit.com/r/AskHistorians/comments/5qhz7o/ama_the_german_armys_role_in_the_holocaust/dczdhhm/",
"https://www.reddit.com/r/AskHistorians/comments/4r8pzp/how_often_did_the_regular_german_arm... | |
15qie7 | How often did people trade in money for gold? | Economics has always been an interest of mine. Today, all (most?) countries use a fiat monetary system, but for much of civilization the money system was backed by precious metals (gold or silver, usually).
The economics texts I've read explain that in a country that followed the gold standard the central bank would p... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/15qie7/how_often_did_people_trade_in_money_for_gold/ | {
"a_id": [
"c7oys8q"
],
"score": [
6
],
"text": [
"Under a \"classical\" gold standard, money is not convertible into gold; money IS gold. The monetary unit is defined in terms of a weight of gold, and the law defines a right of any individual to go to a mint and turn that weight of gold into an ... | [] | [] | [
[
"http://dx.doi.org/10.2139/ssrn.2139115",
"http://ssrn.com/abstract=2139115"
]
] | |
4iuabl | who is it exactly that make money every time i use visa or mastercard? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4iuabl/eli5_who_is_it_exactly_that_make_money_every_time/ | {
"a_id": [
"d314rin",
"d31af20"
],
"score": [
11,
4
],
"text": [
"The issuing bank gets a cut and so does the network operator (visa/mastercard/etc).\n\nThat's why banks want you to use *their* cards. Well that and since they're the ones financing your credit they get the interest on the... | [] | [] | [
[],
[]
] | ||
8ds7yr | umbral moonshine | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8ds7yr/eli5_umbral_moonshine/ | {
"a_id": [
"dxpmn2k"
],
"score": [
2
],
"text": [
"Perhaps while you're at it you'd like an ELI5 of the proof of Fermat's last theorem, and a simple explanation of the Hodge conjecture?\n\nSome concepts are suitable for simplified explanations. This is not one of them."
]
} | [] | [] | [
[]
] | ||
9g9jtj | why when you learn a new word you suddenly see it used all the time? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9g9jtj/eli5_why_when_you_learn_a_new_word_you_suddenly/ | {
"a_id": [
"e62fuq5",
"e62gi38",
"e62gtps",
"e62pm4c",
"e62s984",
"e62tha5",
"e62trer",
"e62tyoe",
"e62uho9",
"e62uy4n",
"e62w8lg",
"e62wm8i",
"e62wo00",
"e62wwux",
"e62x7cn",
"e62x88o",
"e62xjsp",
"e62xv40",
"e62y9w1",
"e6359sl",
"e... | [] | [] | [
[],
[
"https://psmag.com/social-justice/theres-a-name-for-that-the-baader-meinhof-phenomenon-59670"
],
[
"https://science.howstuffworks.com/life/inside-the-mind/human-brain/baader-meinhof-phenomenon.htm"
],
[],
[],
[],
[],
[],
[],
[],
[],
[
"https://trends.google.com/trends/exp... | ||
52hz36 | why are there creases in our palm and why are they permanently there throughout our lifetime? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/52hz36/eli5_why_are_there_creases_in_our_palm_and_why/ | {
"a_id": [
"d7kg7it"
],
"score": [
8
],
"text": [
"Creases form on our hands in the womb. They allow our hand skin to squeeze and stretch without bunching up. These creases are called Palmar Flexion creases."
]
} | [] | [] | [
[]
] | ||
epzwgf | Literary Works on European Attire/Fashion | Hello, I have been looking around for good scholarly works on the history of European attire (all aspects of life military, sleeping etc..) and i'm wondering if there is considered a great work for somebody who wants to start reading on the subject.
Thank you for reading. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/epzwgf/literary_works_on_european_attirefashion/ | {
"a_id": [
"femrmdg"
],
"score": [
5
],
"text": [
"This is such a very broad topic that there are no scholarly works that deal with the whole thing. On the one hand, you can try Phyllis Tortora's *Survey of Historic Costume*, which is a textbook that can give a broad overview; like all textbooks,... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/wiki/profiles/mimicofmodes"
]
] | |
87cw4b | how do we define when the earth formed? | Since I'm assuming it formed over a massive timescale how do we define when it stopped being a clump of rock? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/87cw4b/eli5_how_do_we_define_when_the_earth_formed/ | {
"a_id": [
"dwbxea1"
],
"score": [
6
],
"text": [
" > how do we define when it stopped being a clump of rock?\n\nBut it still is a big clump of rock. That's not mutually exclusive with being categorized as a planet, and the actual definition of a planet is rather arbitrary. Pluto is a good examp... | [] | [] | [
[
"1.is"
]
] | |
3zxuwm | why is february the shortest month? | How did we decide that the second month of the year was going to be the one with less days? Why not December? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3zxuwm/eli5_why_is_february_the_shortest_month/ | {
"a_id": [
"cypvnsj",
"cypvorf",
"cypw5g3",
"cypya2p"
],
"score": [
6,
2,
3,
2
],
"text": [
"Because it was the last month of the year.\n\nThe old Roman calendar had ten months -- which is why we see prefixes like Oct- and Dec- -- eight and ten -- for what was at the time ... | [] | [] | [
[],
[],
[],
[]
] | |
2j5nw8 | why i can't explain to others things like they're five? | I understand things intuitively but I appear dumb when someone asks for me to break it down for them. Why is this? (I already know why, but I can't explain it and need you to.) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2j5nw8/eli5_why_i_cant_explain_to_others_things_like/ | {
"a_id": [
"cl8llh7",
"cl8mc83"
],
"score": [
6,
3
],
"text": [
"There is a little bit of truth in the idea that if you can't explain it simply, then you don't really understand it. But that's not always the case, sometimes what you explain might just be really complicated. I mean, you ca... | [] | [] | [
[],
[]
] | |
7is61w | what’s the difference between dolby, dts, and pcm sound options for surround sound. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7is61w/eli5_whats_the_difference_between_dolby_dts_and/ | {
"a_id": [
"dr131mm",
"dr14q9p"
],
"score": [
2,
3
],
"text": [
"Strictly speaking, PCM is a codec for sound to digital data,while Dolby and DTS are companies that create other codecs (although I think the consumer codec made by DTS may also be called, simply, DTS).\n\nPCM is the most bas... | [] | [] | [
[],
[]
] | ||
rkh6j | What would happen if we were to point the Hubble Space telescope at the Earth? | Barring the fact that the telescope can't be pointed at such a bright object, but this is just a hypothetical question. Would the telescope act as a big optical microscope, or would it have some weird blurry image? | askscience | http://www.reddit.com/r/askscience/comments/rkh6j/what_would_happen_if_we_were_to_point_the_hubble/ | {
"a_id": [
"c46jo1l",
"c46l5t4",
"c46lh2l"
],
"score": [
76,
5,
3
],
"text": [
"From [_URL_1_](_URL_0_)\n\n > The surface of the Earth is whizzing by as Hubble orbits, and the pointing system, designed to track the distant stars, cannot track an object on the Earth. The shortest ... | [] | [] | [
[
"http://hubblesite.org/reference_desk/faq/answer.php?id=78&cat=topten",
"HubbleSite.org"
],
[
"http://en.wikipedia.org/wiki/KH-11"
],
[]
] | |
xqt2p | explain this comic to me. | _URL_0_ | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/xqt2p/explain_this_comic_to_me/ | {
"a_id": [
"c5ot1s7",
"c5ounha",
"c5ouoeq"
],
"score": [
67,
5,
4
],
"text": [
"[There's a website for that](_URL_0_)\n\n\n > This is a reference to the phrase context-free grammar, which is a technical term used in formal language theory. The play on words is that Cueball does no... | [] | [
"http://xkcd.com/1090/"
] | [
[
"http://www.explainxkcd.com/wiki/index.php?title=1090"
],
[
"http://www.reddit.com/r/explainlikeimfive/comments/xqt2p/explain_this_comic_to_me/c5ot6xi",
"http://en.wikipedia.org/wiki/Chomsky_hierarchy#The_hierarchy",
"http://en.wikipedia.org/wiki/Formal_language"
],
[]
] | |
296kur | Can stable elements be induced to undergo nuclear fission? | The fission of elements like uranium and plutonium are well known, but can we make stable elements (like everyday iron) split into lighter elements? | askscience | http://www.reddit.com/r/askscience/comments/296kur/can_stable_elements_be_induced_to_undergo_nuclear/ | {
"a_id": [
"cihxrn4"
],
"score": [
2
],
"text": [
"Yes, we can make lighter stable elements split into even lighter elements, but below iron, it requires more energy to split them than you get back. Light elements require more energy to split, and give more energy when fused; heavy elements as o... | [] | [] | [
[]
] | |
9oicni | how does a serving of something like beef jerky have 10g of protein in it, when the serving size is 1g of meat? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9oicni/eli5_how_does_a_serving_of_something_like_beef/ | {
"a_id": [
"e7u9n2a",
"e7u9w03"
],
"score": [
3,
3
],
"text": [
"1 gram of food is about the size a jelly bean. I don’t think there are any beef jerkies with 1 gram servings. ",
"You've misread something maybe you should upload the packet so we can understand where you've got it wrong... | [] | [] | [
[],
[]
] | ||
joklp | how does a processor thread work? | After reading why 2.2GHz is better in an i7 than 2.2 GHz in an core 2 duo. I started to wonder how a CPU thread in an i3, i5, and i7 works? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/joklp/eli5_how_does_a_processor_thread_work/ | {
"a_id": [
"c2dukd7",
"c2dukd7"
],
"score": [
5,
5
],
"text": [
"A thread is a fancy way to say a task. Let's say you want to send shipments of Egyptian cotton from Sicily to Malta. If you have a single plane that can fly 500 mph, you have to wait until it flies there and back (a single c... | [] | [] | [
[],
[]
] | |
4n98w5 | how can 100% orange juice have calories but something like flavored sparkling water containing fruit juice have no calories? | Even if the amount of fruit juice in the water is small, it's still calories, isn't it? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4n98w5/eli5_how_can_100_orange_juice_have_calories_but/ | {
"a_id": [
"d41xoxi",
"d41xrrl",
"d4229bt"
],
"score": [
18,
22,
4
],
"text": [
"It has a few but the law allows them to round down. So it's approximately zero. ",
"There is sugar in an orange so there are calories in an orange.\n\nThe sparkling water might have an sweetener t... | [] | [] | [
[],
[],
[]
] | |
fxl3ih | Are supernovae radially symmetric? | First post here so hope I am doing this right?
So I've been watching a lot of videos on youtube about the final stages of massive stars and the resultant cataclysmic space kablooie that follows. The final stages of successively fusing heavier elements, coupled with representing them as discrete shells, and then how th... | askscience | https://www.reddit.com/r/askscience/comments/fxl3ih/are_supernovae_radially_symmetric/ | {
"a_id": [
"fmvjg6p",
"fmvkvaq"
],
"score": [
3,
5
],
"text": [
"The star can spin which can make the poles behave differently. The balance of gravity pulling in and fusion pushing out will tend to smooth out differences, so it's about as homogenous as a well stirred soup, it might not ex... | [] | [] | [
[],
[
"https://www.youtube.com/watch?v=lKahy0-IsGY",
"https://en.wikipedia.org/wiki/List_of_supernova_remnants"
]
] | |
9139io | why does muscle stop growing stronger at some point? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9139io/eli5_why_does_muscle_stop_growing_stronger_at/ | {
"a_id": [
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"text": [
"It takes a constant caloric energy feed to support every gram of muscle. You're evolved to face the danger of imminent starvation at any time. \n\nSo the muscles grow in proportion to the exercise they get. Which is propo... | [] | [] | [
[],
[]
] | ||
216kqw | Following implantation of a Cochlear Implant, can adult formerly-deaf patients understand language? | As a follow-up: Does sign language activate the same neural-pathways associated with auditory neural processing? | askscience | http://www.reddit.com/r/askscience/comments/216kqw/following_implantation_of_a_cochlear_implant_can/ | {
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"cga6gep"
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"score": [
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"text": [
"Neuroimaging of sign language is a bit thin on the ground; there's only a handful of studies, but they suggest that signed language uses many of the same areas but isn't as lateralized or localized as spoken language processing (e.g., Corina, et ... | [] | [] | [
[]
] | |
f98yar | why does water go through your system so quickly? | I'm making an attempt to be healthier and have been drinking a lot of water recently. Typically I'd have a glass or two of water a day, and the rest of my sustenance was coffee or pop. For some reason, now that I'm drinking much more water, I'm urinating more often.
What is it about water that makes you urinate more... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f98yar/eli5_why_does_water_go_through_your_system_so/ | {
"a_id": [
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"score": [
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"text": [
"Coffee makes you urinate more. But you did take in less water all around(foods drinks etc) do you did not urinate much. Your body takes in enough water and secrates the useless amount via urination and other thinks. Try gett... | [] | [] | [
[],
[]
] | |
496gjq | How did outsiders view the relationship between the emperor and shogun of Japan? | In particular, I'm interested in how it was seen by the Europeans and the Chinese. Did they remark on the unusual nature of this arrangement? Would official correspondence be addressed to the emperor or the shogun? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/496gjq/how_did_outsiders_view_the_relationship_between/ | {
"a_id": [
"d0qda1g"
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"score": [
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"text": [
"You don't really specify an era, so I'm just gonna talk about the 19th century and the Perry expedition as an example.\n\nWhile planning for the expedition, the US understood Japan as having two emperors, a religious emperor and a military empero... | [] | [] | [
[]
] | |
4xnea1 | Does Einstein's theory of relativity connect electric and magnetic fields? | askscience | https://www.reddit.com/r/askscience/comments/4xnea1/does_einsteins_theory_of_relativity_connect/ | {
"a_id": [
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"score": [
80,
14
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"text": [
"Yes; namely under changes of inertial frames in relativity (Lorentz transformations) E and B fields mix into eachother.\n\nSuper minimal example to show this: static charge, there's only an E field. You change reference fr... | [] | [] | [
[],
[]
] | ||
u1nof | Why No American Aristocracy? | Why was it that the British Crown did not attempt to create an indigenous aristocracy in colonial North America by dispensing land grants with titles? In other words, why no American Peerage? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/u1nof/why_no_american_aristocracy/ | {
"a_id": [
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"text": [
"There were attempts. ... | [] | [] | [
[],
[],
[],
[],
[],
[],
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[],
[],
[],
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] |
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