q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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6vfq7h | how much of the "side effects" medicine talks about are actually side effects? | In every TV ad, I've heard side effects ranging from headaches, abdominal pain, coughing, sneezing, sweating, heart attacks, stroke, arrhythmia, some disorder, cardiac arrest, etc.
But how much is actually proven to be a side effect? Are all effects experienced during clinical trials listed as "side effects" because c... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6vfq7h/eli5_how_much_of_the_side_effects_medicine_talks/ | {
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" > But how much is actually proven to be a side effect? \n\nAll those are \"possible side effects\", meaning you *might* experience them. Drugs can be difficult to predict and just because someone experienced them in testing doesn't mean you wil... | [] | [] | [
[]
] | |
3fip1v | why when another person is picked up when they are conscious, they feel lighter than their actually weight, but if they are unconscious or like a rag doll they feel more like their true weight? | Just a thought going through my mind while at work... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3fip1v/eli5_why_when_another_person_is_picked_up_when/ | {
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"People who are concience are able to help you lift them, or shift their weight so it's less awkward to cary.",
"Think about it like trying to pick up a hundred pounds of sand. Consciousness is, metaphorically, sand bags.... | [] | [] | [
[],
[]
] | |
80bpn2 | why does orange juice after brushing my teeth with mint tooth paste feel like the gods are punishing me? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/80bpn2/eli5_why_does_orange_juice_after_brushing_my/ | {
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"Orange juice is very sour and very sweet. Your tooth paste temporarily makes you unable to taste sweetness. Without the sweet there to balance it, the sourness of orange juice becomes kinda overwhelm... | [] | [] | [
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"https://www.youtube.com/watch?v=nCwsBPEWJ7E"
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j3mnq | li5: cuban missle crisis, bay of pigs... | I wasn't around for these activities. Can someone help me become less herpderp about it?
What did the USA do, what did Cuba do, and how did it make everyone feel? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j3mnq/li5_cuban_missle_crisis_bay_of_pigs/ | {
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"Long ago, in 1823, President Monroe announced the Monroe Doctrine, which essentially said that the United States would view any attempts by European nations to colonize North American countries as threats to US national security. This is importa... | [] | [] | [
[]
] | |
1m6g0q | how did cavemen maintain their teeth if they didn't have the proper knowledge and tools the same way we do in the modern world? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1m6g0q/eli5_how_did_cavemen_maintain_their_teeth_if_they/ | {
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"They did not. Many died of starvation because they could not eat. ",
"Did did not have any added sugar in their food, which made it much easier to mainta... | [] | [] | [
[],
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1y7s84 | Why did stars stop producing new elements? | As I understand it, Helium and Hydrogen were the original elements, and additional elements were formed when stars died out, which then laid the building blocks for more complex combinations and ultimately life as we know it today. My question is why aren't stars still producing new elements as they die? | askscience | http://www.reddit.com/r/askscience/comments/1y7s84/why_did_stars_stop_producing_new_elements/ | {
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"_URL_0_\n\nElements up to Iron are formed during the life of stars, heaver during supernovae star deaths. \n\nSo, stars *are* producing new elements as they die, if they're massive enough. \n\nStars that aren't massive enough to die as a supernov... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Stellar_nucleosynthesis"
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4mbrg3 | how come most people who grew up poor/lower socioeconomic, usually stay that way? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4mbrg3/eli5how_come_most_people_who_grew_up_poorlower/ | {
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"Two main reasons\n\nFewer opportunities. This sounds like a cop out, but it's true. It's harder for the lower classes to afford college, and many don't have ... | [] | [] | [
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1pja95 | Is there anything special or discerning about "visible light" other then the fact that we can see it? | Is there anything special or discerning about visible light other then the sect that we can see it? Dose it have any special properties or is is just some random spot on the light spectrum that evolution choose? Is is really in the center of the light spectrum or is the light spectrum based off of it? Thanks. | askscience | http://www.reddit.com/r/askscience/comments/1pja95/is_there_anything_special_or_discerning_about/ | {
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"It's not amazingly s... | [] | [] | [
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"http://upload.wikimedia.org/wikipedia/commons/3/34/Atmospheric_electromagnetic_opacity.svg",
"http://en.... | |
7gwaqu | The golden age of Islam saw the middle east as one , if not the centre of scientific progress during it's time. What happened that today the west overtook the islamic world in scientific progress and innovation? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7gwaqu/the_golden_age_of_islam_saw_the_middle_east_as/ | {
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"text": [
"[A great answer to a similar question here](_URL_0_) by u/profrhodes"
]
} | [] | [] | [
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]
] | ||
150ogm | When a fighter jet fires it's machine guns, does it slow down the jet by a considerable amount? | Mostly self-explanatory... Also, is there a top speed where it is dangerous to fire a fighter jets machine guns? | askscience | http://www.reddit.com/r/askscience/comments/150ogm/when_a_fighter_jet_fires_its_machine_guns_does_it/ | {
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"text": [
"Not considerably, it's all just conservation of momentum.\n\nxkcd's What If [handled a similar question](_URL_0_) about machine gun jetpacks. A quote of interest about the Gryazev-Shipunov GSh-6-30, a ... | [] | [] | [
[
"http://what-if.xkcd.com/21/"
],
[],
[
"http://en.wikipedia.org/wiki/North_American_B-25_Mitchell#Operators"
]
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2dqwa1 | What mechanisms support genetic diversity of the whole population of (complex) species? | It is well-known, that incest is disastrous to (human) population health. It is because, as I know, due to "matching" of mistakes in chromosomes (that happen during copy-paste of chromosomes). Also, as I know, non-negative mistakes literally do not happen (in humans). Thus, we, people, are in a big bowl of bad matching... | askscience | http://www.reddit.com/r/askscience/comments/2dqwa1/what_mechanisms_support_genetic_diversity_of_the/ | {
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"text": [
"Most mutations are indeed deleterious/bad, but there are also beneficial/good mutations. A good example is the ability to metabolize lactose as adults - since we've domesticated cows/goats/etc. and milk is a good source of n... | [] | [] | [
[
"http://www.amazon.com/Population-Genetics-A-Concise-Guide/dp/0801880092/ref=sr_1_1?ie=UTF8&qid=1408234938&sr=8-1&keywords=population+genetics"
],
[]
] | |
wlhve | Could a Middle English speaker and a Modern English speaker have been able to verbally communicate | Given the changes the English language has made over the last few centuries, especially the "Great Vowel Shift," would a hypothetical time traveler that spoke modern English been able to carry on a conversation with someone in 13th century London? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/wlhve/could_a_middle_english_speaker_and_a_modern/ | {
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"text": [
"This is not really a historical question and r/linguistics could probably answer this better. My take on it:\n\nIt would be difficult, but you could probably communicate.\n\nHave ... | [] | [] | [
[
"http://ebooks.adelaide.edu.au/c/chaucer/canterbury/burrell/chapter1.html"
],
[],
[
"http://www.youtube.com/watch?v=OeC1yAaWG34&feature=youtube_gdata_player"
],
[
"http://www.fordham.edu/halsall/source/CT-prolog-para.html",
"http://youtu.be/QE0MtENfOMU"
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] | |
49iy49 | historically, does socialism work long-term? why or why not? | Citing historical examples, not hypothetical, does a socialistic system of government really work in practice over the long term?
| explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/49iy49/eli5_historically_does_socialism_work_longterm/ | {
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" Nearly every socialist country has given it up after experiencing a string of economic failures. The most notable example is the Sovie... | [] | [] | [
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1g1b3l | what are the main differences between sunni and shia islam? | There seems to be a lot going on between these groups and a lot of violence and hate towards each other. Why is this happening? Can this be viewed like the Eastern Orthodox and Roman Catholic Church? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1g1b3l/what_are_the_main_differences_between_sunni_and/ | {
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"Orthodox vs Roman Catholic is kind of a wo... | [] | [] | [
[
"http://www.reddit.com/r/explainlikeimfive/comments/1fz36z/eli5why_do_people_online_support_assad/"
],
[],
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[
"https://www.google.com.pk/search?q=matam&tbm=isch&tbo=u&source=univ&sa=X&ei=asm1Ud3tFcbC7AaI2ICICQ&ved=0CDQQsAQ&biw=1024&bih=667"
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5m6er7 | How popular was the name Muhammad before the prophet Muhammad was born? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5m6er7/how_popular_was_the_name_muhammad_before_the/ | {
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"text": [
"I spent around an hour looking but couldn't find too much. There is an article from 1936 (so methodologies have definitely changed since then) by Edward Jabra Jurji that claims that the name Muhammad has been in use in Arabia since the first-mi... | [] | [] | [
[
"http://sahabanames.com/sahabi-names-for-boys/page/47/",
"https://www.wikiwand.com/en/List_of_Sahabah#/References"
]
] | ||
2wl98d | how people get graffiti in ridiculous places | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2wl98d/eli5_how_people_get_graffiti_in_ridiculous_places/ | {
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"text": [
"However they have to. Ladders, are common, as is standing on your friend's shoulders. They climb, jump, or hang as necessary. Some even bring rope and rappel down to where they need to get.\n\nIf you ha... | [] | [] | [
[],
[
"http://www.dailymotion.com/video/xvivnd_risky-business-metlac-bridge_sport?start=140#from=embediframe"
],
[]
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3baqq8 | What is the history of the Western Sahara? Why does Morocco have (no) legitimate sovereignty over this region? | If so why? In other words what determines territorial sovereignty? Maps show the Sahara under Moroccan control since at least Medieval Times under the Almohad and Almoravid dynasties (although it is ironically more the other way around as these powerful dynasties originated from the south). I know this isn't a popular ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3baqq8/what_is_the_history_of_the_western_sahara_why/ | {
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"text": [
"/u/rkwan (partially) answers your question in [this comment](_URL_0_) to a similar question from 2 years ago.",
"A good resource is the non-binding ICJ advisory opinion issued in 1975. _URL_1_\n\nIt essentially holds th... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/1de1g8/what_is_the_story_behind_the_green_march_and_the/c9sh8bm"
],
[
"https://en.m.wikipedia.org/wiki/Madrid_Accords",
"http://www.icj-cij.org/docket/files/61/6197.pdf"
]
] | |
8wxgfx | Is it possible to detonate a thermonuclear device without a fission primer? | From my limited understanding of how Hydrogen bombs work, causing Tritium to fuse requires massive energy input really only available on the scale of fission bombs. Theoretically, could the same objective be achieved using something like lasers or a chemical reaction? Obviously any real answers to this are likely class... | askscience | https://www.reddit.com/r/askscience/comments/8wxgfx/is_it_possible_to_detonate_a_thermonuclear_device/ | {
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"text": [
"Yes. Most current fusion experiments use lasers, no they would not work for a weapon systems. It would be possible to use lasers to detonate a thermonuclear device, but it would be a very big system using lots of power. The ... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/National_Ignition_Facility",
"https://fas.org/sgp/othergov/doe/rdd-7.html",
"https://arxiv.org/pdf/physics/0510071.pdf"
]
] | |
fdxmui | why do cribs get recalled all the time? | How hard is it to make a safe bed for a baby? Why do manufacturers not know how to do this by now?? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fdxmui/eli5_why_do_cribs_get_recalled_all_the_time/ | {
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"Usually because the dimensions between parts (a rail and a mattress for example) can, in rare instances, cause a... | [] | [] | [
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"https://www.verywellfamily.com/drop-side-crib-safety-issues-294016"
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2g5yle | why do laptops use fans -loud, annoying fans- while an iphone/ipad can run processor heavy apps for hours with no fan and not get hot? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2g5yle/eli5_why_do_laptops_use_fans_loud_annoying_fans/ | {
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"text": [
"cause laptop cpu's are more powerful than ipad processors. tablet and smartphone cpu's sacrifice processing power for less heat dissipation. ",
"Laptops and desktops have more powerful processor... | [] | [] | [
[],
[],
[]
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2xq32e | How were the Romans able to replenish so much of their manpower despite devastating losses in battles such as Cannae? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2xq32e/how_were_the_romans_able_to_replenish_so_much_of/ | {
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"I take it your question is less about Roman logistics and more about the specific fact that the forces at Cannae were effective crushed as a standing army, and how did Rome recover from something lik... | [] | [] | [
[],
[],
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] | ||
4f9jkj | if a company has a labor strike, why can't they just fill their positions with temporary workers and let the strikers just continue to strike in perpetuity? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4f9jkj/eli5_if_a_company_has_a_labor_strike_why_cant/ | {
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"Those temps are called scabs, and it is not an uncommon occurrence. It definitely undermines their relationship with their regular work force, and often times results in violenc... | [] | [] | [
[],
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"https://en.wikipedia.org/wiki/Professional_Air_Traffic_Controllers_Organization_%281968%29"
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1nruno | why do the carbons in graphene only have 3 bonds? | askscience | http://www.reddit.com/r/askscience/comments/1nruno/why_do_the_carbons_in_graphene_only_have_3_bonds/ | {
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"text": [
"The carbons form only three bonds because they are sp^2 hybridized (hence the -ene suffix). This means that there are only 3 hybrid orbitals that can form bonds, similar to the ca... | [] | [] | [
[],
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[],
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"http://besocratic.colorado.edu/CLUE-Chemistry/chapters/graphics/ch3-11.jpg",
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"http://www.chemguide.co.uk/basicorg/bonding/sp2.GIF",
"http://www.chemguide.co.uk/basicorg/bonding/ethene.html"
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2vom0g | why is it so hard for reddit to keep the site from crashing | Why am I buying gold if they are still having serious issues? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2vom0g/eli5_why_is_it_so_hard_for_reddit_to_keep_the/ | {
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"Buying gold more often keeps it from crashing. And if you've noticed they don't often meet the daily goal.",
"My guess is that they aren't making enough money to pay for the server time required for... | [] | [] | [
[],
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3lp8vu | How did Polish pilots come to fly in the RAF during the Second World War? | As I understand many Polish (and other eastern European) pilots went to Britain and we're absorbed into the RAF. How did they get there baring in mind that Poland was taken very quickly by Nazi Germany and the USSR. How did they escape? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3lp8vu/how_did_polish_pilots_come_to_fly_in_the_raf/ | {
"a_id": [
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"text": [
"After the German and Soviet invasions, substantial numbers of Polish military personnel escaped to neutral countries, primarily Romania, Hungary, Lithuania and Latvia, where they were interned. Air force personnel mostly evacuated to Romania, fro... | [] | [] | [
[]
] | |
bslycj | what is the core of the earth made of, how does it stay molten, and what would the impact of it cooling be? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bslycj/eli5_what_is_the_core_of_the_earth_made_of_how/ | {
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"text": [
"It has a solid iron and nickel core surrounded by a liquid outer core mostly of the same metals. It stays molten due to the immense pressure of all the mass above it, generating he... | [] | [] | [
[],
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] | ||
68eeh5 | why do we still laugh at jokes we have heard before? | One of my favourite movies is Hot Fuzz even though I've watched it more times that I can count. In life, movies, tv, or any kind of entertainment -- why are many jokes still funny even if you've seen or heard them before? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/68eeh5/eli5_why_do_we_still_laugh_at_jokes_we_have_heard/ | {
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"text": [
"If I hide behind your dresser and pop out and scare you, why would I be able to repeat that effect? Your mind or body still transmit information, whether it's new or old information is irrelevant. It still triggers those emotions in the same way.... | [] | [] | [
[]
] | |
372dew | Are there any moons we know of that rotate the planet at the same rate that the planet spins? | If the rotation of the moon/rotating object matched the planet's rotation in terms of degrees, it would always be visible. Similar to how one side of the moon is always pointing towards earth. I was wondering if there is a planet where one spot on the planet always sees the moon at the same point in the sky? | askscience | http://www.reddit.com/r/askscience/comments/372dew/are_there_any_moons_we_know_of_that_rotate_the/ | {
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"text": [
"The term you're looking for is geosynchronous orbit. I don't know of any moons in such an orbit.",
"There is no planet like this, but [Pluto](_URL_2_) and its moon [Charon](_URL_1_) have this prope... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Tidal_locking",
"http://en.wikipedia.org/wiki/Charon_(moon\\)",
"http://en.wikipedia.org/wiki/Pluto"
],
[]
] | |
o6j0o | how does clicking a pen to the "closed" position prevent it from drying out? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/o6j0o/eli5_how_does_clicking_a_pen_to_the_closed/ | {
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"score": [
31,
75,
5,
14,
19,
3,
8,
2
],
"text": [
"Ball point pens don't dry out. Are you talking about ball point pens?",
"They're put... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[]
] | ||
1rw1gf | what is a "mainframe" and why are people always trying to hack into it in movies? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1rw1gf/eli5_what_is_a_mainframe_and_why_are_people/ | {
"a_id": [
"cdriud9"
],
"score": [
3
],
"text": [
"Mainframes are what we'd think of as big corporate servers or supercomputers. \n\nIf you roll the clock back not that many years anything important was stored on a company mainframe - usually they were custom built for big database applications.... | [] | [] | [
[]
] | ||
4v6h8y | how do sea creatures manage to live in water that others regularly poop in, without getting sick or dying? | Edit: My vacation to Florida last week and the recent Rio 16 Olympics had me wondering the difference between humans swimming in human poop-water vs sea creature poop-water. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4v6h8y/eli5how_do_sea_creatures_manage_to_live_in_water/ | {
"a_id": [
"d5vvvm5"
],
"score": [
6
],
"text": [
"As an analogy how do we manage to not getting sick breathing the air that someone somewhere is sneezing in?\n\n\nThere are creatures in the water who eat that poop and break it down so eventually the poop becomes harmless. \n\nIn the short tim... | [] | [] | [
[]
] | |
12igv2 | Who did the U.S./Nato support in the Bosnian War? | I know Kosovo for sure. Ive read how well Kosvars treat Americans that travel to their country because of our teamed effort to aid them in the war.
* Are there any newly formed countries, as a result of the war, that admire America the way Kosovo does?
* Vice-versa, which countries despise America for their role? Or ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/12igv2/who_did_the_usnato_support_in_the_bosnian_war/ | {
"a_id": [
"c6vb50x",
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"c6vfq9z",
"c6vg3dh",
"c6vhr4o"
],
"score": [
5,
18,
17,
4,
4
],
"text": [
"Disclaimer: this is lay person experience \n\n > Vice-versa, which countries despise America for their role?\n\nI don't know if you went in or not but the m... | [] | [] | [
[],
[],
[
"bitly.com/U4EBFw"
],
[],
[]
] | |
2lfwln | human consumption of other animal's milk. | Has the scientific process behind making milk ready for consumption just afforded us another choice of beverage? Is this an okay thing for humans to do? Is this why some people display symptoms of lactose intolerance? The literature is so biased that I cant decide my opinion on milk. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2lfwln/eli5_human_consumption_of_other_animals_milk/ | {
"a_id": [
"cluek4u",
"clueltl",
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"score": [
3,
2,
5,
3
],
"text": [
"\nWe've been eating animal milk far longer than any \"scientific process\" existed. For most of our history it was milk the goat/cow/buffalo and then drink the milk, period. Nota... | [] | [] | [
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Lactase_persistence"
]
] | |
2kb1ex | how are new "4k" tv's able to plat 4k content with old processors, but my new i5 computer lags with 4k content? | I have a pretty good machine. i5,16GB ram and 1TB SSHD but it lags at 4K. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2kb1ex/eli5how_are_new_4k_tvs_able_to_plat_4k_content/ | {
"a_id": [
"cljkdax",
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"score": [
3,
2
],
"text": [
"My guess would be graphics performance of the chips. On your computer your GPU rather than your CPU will handle, by and large, the rendering of the images whereas TVs will have chips designed for rendering images and little ... | [] | [] | [
[],
[]
] | |
2r7f1r | why can't divers fly after diving? | I read somewhere that it is to prevent Decompression Sickness, but I'm not so sure I grasp the idea of it. I mean, what happens when bubbles form then the diver decides to ride an airplane? Do gases mix? Does Nitrogen have any integral effect since air is mostly comprised of this gas? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2r7f1r/eli5_why_cant_divers_fly_after_diving/ | {
"a_id": [
"cnd4tq6",
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],
"score": [
11,
2
],
"text": [
"You're right: the main gas involved is nitrogen. Basically, when we dive very deep, there's more pressure on our entire body, including our blood. More nitrogen dissolves into our blood than it would at a lower pressure (e.... | [] | [] | [
[],
[]
] | |
1qgxok | the revolutionary war; what caused it, and how was it regarded from an english perspective? | I was very intrigued by the new WW2 askreddit post, and was going to post there but I felt more like it was a question that I didn't understand so figured it fit better here! (I basically know the American side, just not the Brits). | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1qgxok/eli5_the_revolutionary_war_what_caused_it_and_how/ | {
"a_id": [
"cdconyc"
],
"score": [
2
],
"text": [
"It started because King George was taxing the colonies above and beyond reason. The English people thought the colonists were being ungrateful."
]
} | [] | [] | [
[]
] | |
1tkopg | Were there any economic interactions between the United States and the USSR during the Cold War? | Was the barrier of communism making it impossible for importing and exporting from both sides to take place? Or was there a standard trading system like the one in place today? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1tkopg/were_there_any_economic_interactions_between_the/ | {
"a_id": [
"ce9135n",
"ce91iog",
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"score": [
14,
8,
11
],
"text": [
"In 1972 the USSR bought 440 million bushels of wheat from the US, with more purchases in following years. Here's a paper from the St Louis Fed -\n_URL_0_ . I'll never find the link, but in the late ... | [] | [] | [
[
"http://research.stlouisfed.org/publications/review/73/10/Russian_Oct1973.pdf"
],
[],
[]
] | |
7ftzoq | how does germany not have a crazy high rate of alcoholism and related crime when it has relaxed liquor laws? | Travelled to Germany and I could buy all sorts of beer in many stores and even drink in public. There does not seem to be more alcohol related incidents, violence or crime either | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7ftzoq/eli5_how_does_germany_not_have_a_crazy_high_rate/ | {
"a_id": [
"dqeczw0",
"dqed083",
"dqeemha",
"dqendyy"
],
"score": [
16,
4,
6,
3
],
"text": [
"People who are happy and secure generally don't drink to excess, or when they do, don't commit crimes. Germany has a strong economy, a strong social safety net, widely available s... | [] | [] | [
[],
[],
[
"http://p5.focus.de/img/fotos/crop722580/2932716551-w1200-h627-o-q75-p5/fit-komasaufen-dpa.jpg"
],
[]
] | |
31m1nh | what does it mean to "soft reboot" my android device? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/31m1nh/eli5_what_does_it_mean_to_soft_reboot_my_android/ | {
"a_id": [
"cq2syoo"
],
"score": [
2
],
"text": [
"Soft reboot is when you actually go through the OS and choose the \"Reboot\" or \"Restart\" option, as opposed to a hard reboot, which is physically(or using the 5 second switch that is standard on most computing devices now) cutting the power an... | [] | [] | [
[]
] | ||
a9wpjp | tesla’s fascination with the numbers 3 6 9 | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a9wpjp/eli5_teslas_fascination_with_the_numbers_3_6_9/ | {
"a_id": [
"ecn3zzu",
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],
"score": [
2,
2
],
"text": [
"I remember from my studies that in middleage the 3 was a link to Catholic God (the trinity) and so 6 because is two times 3 and 9 because is three times 3, You can find this obsession with number in Dante's Divina commedia."... | [] | [] | [
[],
[]
] | ||
49z1rc | In what ways were European states forced to reform in order to defeat Napoleonic France? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/49z1rc/in_what_ways_were_european_states_forced_to/ | {
"a_id": [
"d0w4vwi"
],
"score": [
12
],
"text": [
"The biggest change, militarily speaking, was in the size of militaries involved before the Wars of the French Revolution and after. To give you an example, the British army, on the eve of the American Revolution in 1775 was something like 48,000... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Lev%C3%A9e_en_masse",
"https://en.wikipedia.org/wiki/Battle_of_Leipzig"
]
] | ||
3s20u1 | How did nobility/royalty prove who they were while traveling? | I'd like to know specifically about nobility traveling to far away places, like different continents.
Did they carry papers that would officially link them back to their country that would open doors for them? Did they just bring money and that would be like a royal passport? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3s20u1/how_did_nobilityroyalty_prove_who_they_were_while/ | {
"a_id": [
"cwtd15p",
"cwtxb9a"
],
"score": [
34,
5
],
"text": [
"Could you specify what time period you're thinking of? It would vary a lot from civilization to civilization, and era.\n\nThere were a lot of things that could be used to distinguish people that would not have been easily r... | [] | [] | [
[],
[]
] | |
2wxp89 | when did most people in England start thinking of the royal family as their native leaders instead of foreign invaders? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2wxp89/when_did_most_people_in_england_start_thinking_of/ | {
"a_id": [
"covammf"
],
"score": [
17
],
"text": [
"This is a very tricky question because it's not clear which royal family you're discussing. The last time the dynasty changed by foreign invasion was in the Glorious Revolution of 1688, and there was a *very* widespread effort among the elites i... | [] | [] | [
[]
] | ||
3ipu5g | why do dogs like tummy rubs but cats tease you with it but then attack you? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3ipu5g/eli5_why_do_dogs_like_tummy_rubs_but_cats_tease/ | {
"a_id": [
"cuij46g",
"cuijed9",
"cuilyzb"
],
"score": [
42,
10,
14
],
"text": [
"A lot of cats (not all - I've got one that rolls on her back and meows at me if I *don't* rub her belly) don't like having their belly rubbed.\n\nThem rolling on the back is a trust thing - they're e... | [] | [] | [
[],
[],
[]
] | ||
51f659 | Why did it take semi automatic weapons so long to be developed? | One would think that as soon as a gun was invented that they would want to make semi and automatic weapons. However it took centuries before we saw one. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/51f659/why_did_it_take_semi_automatic_weapons_so_long_to/ | {
"a_id": [
"d7bv1vg",
"d7c0n91"
],
"score": [
2,
3
],
"text": [
"The main problem is the difficulties inherent in gunsmithing. You need some very precise metallurgy and engineering to produce a semi-automatic firearm, and mass-production requires a very advanced level of machining and met... | [] | [] | [
[],
[]
] | |
cb1tcq | why can cows and other animals constantly produce milk but humans cannot? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cb1tcq/eli5_why_can_cows_and_other_animals_constantly/ | {
"a_id": [
"etcfsrh",
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"etcs5im",
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"score": [
29,
2,
15,
57,
6
],
"text": [
"They can. That's what a wet nurse does. Milk supply stops when the demand stops, same for all mammals.",
"Dairy farmer here: cows reach peak production... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
87j90s | How is action potential measured in a cell? | I'm a math and science tutor. One of my students is a 7th grader that is enrolled in a life science course. Right now they are learning about the nervous system. This student, who is naturally very inquisitive (and autistic), has a million questions. Right now he is trying to understand how biologists measure action po... | askscience | https://www.reddit.com/r/askscience/comments/87j90s/how_is_action_potential_measured_in_a_cell/ | {
"a_id": [
"dwdblz6",
"dwdcfo9"
],
"score": [
8,
3
],
"text": [
"Hi there, as a biochemist studying ion channels I hope I can provide enough information to satisfy you and your student, or even better, whet your curiosity for more.\n\nAs to your question about how we measure membrane pote... | [] | [] | [
[
"https://www.leica-microsystems.com/science-lab/the-patch-clamp-technique/",
"https://faculty.washington.edu/chudler/ap.html",
"http://www.physiologyweb.com/calculators/nernst_potential_calculator.html"
],
[
"https://imgur.com/d6xnZtr",
"https://en.wikipedia.org/wiki/Patch_clamp"
]
] | |
2no258 | what happens when a banana is bruised | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2no258/eli5what_happens_when_a_banana_is_bruised/ | {
"a_id": [
"cmfk8mj"
],
"score": [
5
],
"text": [
"When part of the fruit starts to decay it releases a chemical called ethylene which signals other parts of the fruit that it's time to die as in the natural process of nature. Bananas also contain an enzyme called polyphenol oxidase, and the oxyg... | [] | [] | [
[]
] | ||
5l7vbp | are fabrics like linen really anti-microbial? | I've seen claims on websites selling linen that the fabric is anti-microbial or anti-bacterial. Is this true, and if so, how? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5l7vbp/eli5_are_fabrics_like_linen_really_antimicrobial/ | {
"a_id": [
"dbw882k"
],
"score": [
2
],
"text": [
"An educated guess is that either the fabric has been treated with something, or that the fibers are woven tightly enough together that bacteria and microbes have difficulty passing through it. So while it is \"anti-bacterial\" it doesn't kill the... | [] | [] | [
[
"http://imgur.com/gallery/nBO8G"
]
] | |
1yove7 | If no information can be transmitted via quantum entanglement, how did we discover it in the first place? | Or do I have an incorrect understanding as to what constitutes information? | askscience | http://www.reddit.com/r/askscience/comments/1yove7/if_no_information_can_be_transmitted_via_quantum/ | {
"a_id": [
"cfmirpc",
"cfmpvm8"
],
"score": [
2,
2
],
"text": [
"Quantum entanglement was first hypothesized in a thought experiment originally thought out as an argument against the Copenhagen Interpretation of quantum mechanics. This thought experiment is now known as the [EPR paradox](... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Bell%27s_inequality",
"http://en.wikipedia.org/wiki/EPR_paradox"
],
[]
] | |
705s2a | How high can roller coasters be built? | Right now, the tallest roller coaster in the world is Kingda Ka, standing at an impressive 456 feet. I was wondering, from a physics perspective, just how high can roller coasters be built? Will we ever see coasters over 500 feet? 600? A thousand? At what point does the drop start to become dangerous in terms of G... | askscience | https://www.reddit.com/r/askscience/comments/705s2a/how_high_can_roller_coasters_be_built/ | {
"a_id": [
"dn1018j",
"dn19fri",
"dn1018j",
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"score": [
6,
3,
6,
3
],
"text": [
"roller coasters are already being limited in the max Gs they induce \n\n4-6 Gs more than briefly can result in loss of consciousness ) \n\ncreating a taller one increases the cost ... | [] | [] | [
[
"https://coasterpedia.net/wiki/Highest_g-force_on_a_roller_coaster"
],
[],
[
"https://coasterpedia.net/wiki/Highest_g-force_on_a_roller_coaster"
],
[]
] | |
8o3oxv | When did people start snorting cocaine? | The inspiration for this question was my wondering specifically whether Sigmund Freud snorted cocaine when he famously experimented with the drug.
But it brings up the broader question: When and why did people begin snorting cocaine rather than administering it orally, intravenously, etc.? And how did that become the... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8o3oxv/when_did_people_start_snorting_cocaine/ | {
"a_id": [
"e00krq0"
],
"score": [
7
],
"text": [
"I don't know when people started snorting cocaine. In the late 19th century, the drug would either be taken orally, or injected intravenously. Think Sherlock Holmes, with this famous scene from the Sign of Four:\n\n > Sherlock Holmes took his bot... | [] | [] | [
[]
] | |
gv0gt | Why are African Americans usually lighter skinned than Africans? | My thought is that it is a result of interbreeding with light skinned people, but does it have merit? I only have my own empirical observations to base this on, and I know non-black people impregnated black people many times in American history.. but was it to the degree that it affected the majority of African America... | askscience | http://www.reddit.com/r/askscience/comments/gv0gt/why_are_african_americans_usually_lighter_skinned/ | {
"a_id": [
"c1qhq3h",
"c1qhqlo"
],
"score": [
6,
2
],
"text": [
" > My thought is that it is a result of interbreeding with light skinned people\n\nYup.\n\n([ref](_URL_0_))",
"What makes you think that this is actually true? I'm not saying it isn't, but has this been approached scient... | [] | [] | [
[
"http://www.ncbi.nlm.nih.gov/pubmed/12671003"
],
[]
] | |
18bpb5 | I've always heard that in the middle ages, people drank beer/mead instead of water because the water wasn't clean. Is this true, and if so, why wasn't everyone drunk/dehydrated all the time? | Also, aren't beer and mead made with water? Or was the problem keeping water clean, which the alcohol would accomplish? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/18bpb5/ive_always_heard_that_in_the_middle_ages_people/ | {
"a_id": [
"c8ddyxq",
"c8dh09o"
],
"score": [
11,
2
],
"text": [
"Not a historian, but a homebrewer and history enthusiast. The water is boiled in the process of making beer so this is why it was safer to drink than the water as any nasties in the water would be killed during this process... | [] | [] | [
[],
[
"http://www.reddit.com/r/AskHistorians/comments/14fvf8/if_beer_was_the_standard_drink_in_northern_europe/"
]
] | |
14qf8y | How did Cavendish avoid/account for the gravitational attraction of the Earth affecting his experiment to determine G? | Henry Cavendish's 18th Century [experiment](_URL_0_) to determine the universal gravitational constant G involved measuring the gravitational attraction between two pairs of metal spheres, each pair consisting of one large and one small sphere.
The balls were affixed to rods that could rotate only in the plane horizo... | askscience | http://www.reddit.com/r/askscience/comments/14qf8y/how_did_cavendish_avoidaccount_for_the/ | {
"a_id": [
"c7fsojf"
],
"score": [
2
],
"text": [
"It's rather easy to make the rods perfectly tangential to earths gravity by making them level. Just adjust the setup so that the weights don't rotate at all when left alone."
]
} | [] | [
"http://en.wikipedia.org/wiki/Cavendish_experiment"
] | [
[]
] | |
17um5r | Is it possible for an earth-like planet to have a ring around it? | Or would the ring effect it? | askscience | http://www.reddit.com/r/askscience/comments/17um5r/is_it_possible_for_an_earthlike_planet_to_have_a/ | {
"a_id": [
"c88ytvl",
"c890j31"
],
"score": [
3,
2
],
"text": [
"Yes, terrestrial planets can have rings.",
"Yes, just imagine breaking our moon into pebbles."
]
} | [] | [] | [
[],
[]
] | |
4tjcz7 | Did JFK actually say he wanted to "Shatter the CIA into a thousand pieces and scatter it to the winds"? | I've heard it attributed to him a lot, often the context given is that it was after the Bay of Pigs. Looking around a bit I can't seem to find a solid source, just people parroting the quote. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4tjcz7/did_jfk_actually_say_he_wanted_to_shatter_the_cia/ | {
"a_id": [
"d5i4g9z"
],
"score": [
62
],
"text": [
"Vincent Bugliosi (former prosecutor in the Charles Manson trial, author of a careful, skeptical book about the Kennedy assassination), writes:\n\n > Whatever the CIA's short laundry list of dissatisfactions (some merely illusory, some real) wit... | [] | [] | [
[
"http://query.nytimes.com/mem/archive/pdf?res=9400E4DB1639E63BBC4D51DFB266838D679EDE"
]
] | |
3mk7x0 | why is it still not commonplace to install antivirus software on on mac computers? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3mk7x0/eli5_why_is_it_still_not_commonplace_to_install/ | {
"a_id": [
"cvfoqfv"
],
"score": [
5
],
"text": [
"Simple. It's already integrated in the OS.\n\n All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user. Internally Apple calls it... | [] | [] | [
[
"https://discussions.apple.com/thread/6624843",
"apple.com"
]
] | ||
mt5i9 | How did men study during the Enlightenment? | I'm reading *Quicksilver* (I'm sure some of you guys love that book) and Stephenson always talks about the characters studying. For those who haven't read it, it takes place in the middle 1600's and early 1700's and two themes are intelligence and natural philosophy. However, the way he talks about studying sounds fore... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/mt5i9/how_did_men_study_during_the_enlightenment/ | {
"a_id": [
"c33n9ih",
"c33sgbj",
"c33uei3",
"c33n9ih",
"c33sgbj",
"c33uei3"
],
"score": [
10,
3,
3,
10,
3,
3
],
"text": [
"Disclaimer: I'm a history student, but probably not much more knowledgeable about this subject than a layman. Anyway, I'm not sure whe... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Republic_of_Letters"
],
[
"http://www.nybooks.com/articles/archives/2009/feb/12/google-the-future-of-books/?pagination=false"
],
[
"http://books.google.co.uk/books?id=QB3Ag08CdtwC&printsec=frontcover&dq=steve+shapin+never+pure&hl=en&ei=WH7VTo_qBMO9... | |
ssw92 | Can someone explain the validity of this claim? Using microwaved water vs. purified water to water your plants | Saw this on one of those facebook posts a thousand people liked/shared: _URL_1_
The caption:
> It has been known for some years that the problem with microwaved anything is not the radiation people used to worry about, it's how it corrupts the DNA in the food so the body can not recognize it.
> Microwaves don't wo... | askscience | http://www.reddit.com/r/askscience/comments/ssw92/can_someone_explain_the_validity_of_this_claim/ | {
"a_id": [
"c4gost1",
"c4gotfn",
"c4gowhr",
"c4gs6dv"
],
"score": [
2,
3,
2,
2
],
"text": [
"Previously discussed: _URL_0_",
"To address the first paragraph of the claim, this describes ionizing radiation. Microwaves do not have enough energy to ionize substances. \n... | [] | [
"http://www.reddit.com/r/reddit.com/comments/4iz7/what_microwaved_water_does_to_plants/",
"http://i.imgur.com/6iFiI.jpg"
] | [
[
"http://www.reddit.com/r/askscience/comments/qaary/a_girl_on_my_fb_posted_this_claim_about/"
],
[],
[
"http://en.wikipedia.org/wiki/Microwave#Health_effects"
],
[]
] | |
2bez16 | what happens to a wasp when i hit it with raid? | Also, I sprayed a small beetle at the same time as I sprayed a wasp just now, and the beetle took about 2-3 minutes to die while the wasp died in seconds. Any reason for that? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2bez16/eli5_what_happens_to_a_wasp_when_i_hit_it_with/ | {
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"text": [
"You must have hit the wasp with RAID 0, which is why it worked so fast. RAID 1 was still effective on the beetle, it just didn't have the same level of performance (but was safer for you, incidentally). \n\n...I'm so sorry."... | [] | [] | [
[],
[]
] | |
2korzl | why does netflix regularly remove movies instead of increasing the size of their library when adding new titles? | As you can see in this link, come Nov. 1st, Netflix is removing some great titles. So why, instead of increasing the list of available movies and dominating the industry, would they remove movies? ALL FOUR seasons of The Magic School Bus?? Heartless.
_URL_0_ | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2korzl/eli5_why_does_netflix_regularly_remove_movies/ | {
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"text": [
"When Netflix buys the rights to distribute certain content they are ALWAYS time limited. Meaning, Netflix has the rights to a show like The Magic School Bus... | [] | [
"http://gothamist.com/2014/10/28/here_are_the_new_netflix_titles_str.php"
] | [
[],
[],
[],
[],
[]
] | |
jt07r | Zoo animals getting excited before earthquakes? | There was a notice from the National Zoo today about how the zoo animals responded to the earthquake. (If you're interested, you can find it here: [Link](_URL_0_))
Many of the animals acted like you'd expect - bothered by the earthquake, a bit ruffled for a while. But some started acting strangely *before* the earth... | askscience | http://www.reddit.com/r/askscience/comments/jt07r/zoo_animals_getting_excited_before_earthquakes/ | {
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"c2evuy6",
"c2evuy6"
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"score": [
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"text": [
"There are two things at work here. The first is for the events that happen mere seconds to a minute before the Earthquake hits. There are two types of waves that travel through the earth during an earthquake, p-waves and s-w... | [] | [
"http://nationalzoo.si.edu/Publications/PressMaterials/PressReleases/NZP/2011/earthquake.cfm"
] | [
[],
[]
] | |
2sdivn | When did Christendom forbid slavery? Did the church have anything to do with it? Were there any exceptions to the ban? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2sdivn/when_did_christendom_forbid_slavery_did_the/ | {
"a_id": [
"cnol594",
"cnoqp15"
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"score": [
10,
4
],
"text": [
"What exactly do you mean by Christendom forbidding slavery? Do you mean as in a bible verse, a decree from the Pope, or what? \n\nI'm asking because there are arguably pretty late instances of individual Christians practici... | [] | [] | [
[],
[]
] | ||
1kth1e | How can a person remain "themself" after undergoing a hemispherectomy? | I apologize if this is not an appropriate question for askscience. It might be more philosophical than scientific in nature.
My question is: How can a person retain "who they are", for lack of a better phrase, after having half their brain removed? You can remove the right side and the person is still there. Remove th... | askscience | http://www.reddit.com/r/askscience/comments/1kth1e/how_can_a_person_remain_themself_after_undergoing/ | {
"a_id": [
"cbsfy2w"
],
"score": [
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"text": [
"if you need a hemispherectomy, probably because of epilepsy, then that hemisphere is probably already very damaged, and much of its function has probably been taken up by the healthy hemisphere. and this is the real answer to the question; the ce... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Integrated_Information_Theory"
]
] | |
uhodj | Circumstances surrounding the Death of Ludwig II of Bavaria | I was recently in Austria, attending a language school and we briefly covered the unification of Germany. We were told Ludwig II died mysteriously, perhaps to facilitate the unification. I've found little information on my own beyond conjecture. What conclusion does historical evidence support? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/uhodj/circumstances_surrounding_the_death_of_ludwig_ii/ | {
"a_id": [
"c4vjwav"
],
"score": [
2
],
"text": [
"His death was quite mysterious and there are many conspiracy theories, but he died in 1886 and the unification was already accomplished in 1871."
]
} | [] | [] | [
[]
] | |
6qkbd9 | if frozen yogurt comes from cow dairy and ice cream comes from cow dairy, how is frozen yogurt "healthier"? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6qkbd9/elif_if_frozen_yogurt_comes_from_cow_dairy_and/ | {
"a_id": [
"dkxwaxp",
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"score": [
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5
],
"text": [
"It's not really. Yogurt is viewed as a healthy snack, so people assume frozen yogurt is healthy, when frozen yogurt is just as full of sugar as regular ice cream. ",
"Traditionally, yogurt is made with less fat than ice ... | [] | [] | [
[],
[]
] | ||
6dw9vx | as people get older, why does it become harder to consume large quantities of food in one sitting? | Maybe this isn't actually a thing, and if it is, it probably depends on the individual, but I know that, personally speaking, I used to be able to scarf down massive plates of food when I was a kid (probably a serious contribution to my current weight issues). But nowadays, eating as much food as I could as a child is ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6dw9vx/eli5_as_people_get_older_why_does_it_become/ | {
"a_id": [
"di5ukv5"
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"score": [
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],
"text": [
"It's not a hard and fast rule, although *appetite* tends to peak during and shortly after puberty. What can certainly alter your ability to eat a lot in one sitting would be obesity; you have less room for your internal organs, and that includes ... | [] | [] | [
[]
] | |
28mu4q | Why is 2^1024 the limit of so many web calculators? | I was using the Google built in calculator, as well as the Desmos graphing calculator and neither can calculate 21024. Both can calculate 21023 as well as 1.9999999999999991024, but if I were to add one more nine to the end or try 21024 both just give the answer infinity.Why is this? Is this because of the limit of the... | askscience | http://www.reddit.com/r/askscience/comments/28mu4q/why_is_21024_the_limit_of_so_many_web_calculators/ | {
"a_id": [
"cichnt8",
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"score": [
52,
4
],
"text": [
"A limit has to be chosen, since we only have a certain number of bits at our disposal to represent a number. The choice is somewhat arbitrary.\n\nHowever, there are a few standard representations that are commonly used and ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Double-precision_floating-point_format"
],
[
"http://www.ieee.org/index.html",
"http://en.wikipedia.org/wiki/Scientific_notation",
"http://en.wikipedia.org/wiki/IEEE_floating_point#Basic_formats"
]
] | |
1o51gn | how come perfect eyesight is 20/20? | And how come the grade increases as eyesight capability decreases? Do they use the same system for nearsightedness and farsightedness? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1o51gn/eli5_how_come_perfect_eyesight_is_2020/ | {
"a_id": [
"ccotsx7",
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"ccp173b",
"ccp3oyw",
"ccp3u3s",
"ccp4e23",
"ccp4qiw",
"ccp6f7w",
"c... | [] | [] | [
[
"http://health.howstuffworks.com/human-body/systems/eye/question126.htm"
],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
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5jrty1 | does earth appear as a bright planet? | Since Earth has a lot of water to reflect light, does it appear really bright from far away compared to other planets? If a telescope looked at our solar system from a few million light years away would they easily see Earth? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5jrty1/eli5does_earth_appear_as_a_bright_planet/ | {
"a_id": [
"dbig9zh",
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"score": [
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"text": [
"[Here is a picture and a speech](_URL_0_). The answer is no - the earth is not particularly luminous. No more than the other planets in our solar system. You lose sight of us before you leave the solar system. Long before th... | [] | [] | [
[
"https://www.youtube.com/watch?v=p86BPM1GV8M"
],
[]
] | |
7coqv6 | thinking about probability, how is it possible that one and only puzzle piece fits in another in a jigsaw puzzle? | A "difficult" jigsaw puzzle has, say, 1,000 pieces, each made the same way - circles and holes for circles. It's interesting to me that each piece has one and only one other piece that it works with, given that there are 998 other pieces in the set that look almost exactly like it but don't quite fit. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7coqv6/eli5_thinking_about_probability_how_is_it/ | {
"a_id": [
"dprgc02",
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"score": [
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3,
2,
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"text": [
"That's not probability that's design. Jig saw puzzles arent random. Someone actually sat down and drew out the lines specifically so that they only fit one place.",
"If you hav... | [] | [] | [
[],
[],
[],
[]
] | |
2gyceu | How did Mohammed and his followers--and, for that matter, his immediate predecessors and fellow Arab people of the time--come to believe in a bunch of the same stuff as the Jews did? | I guess I've sort of taken for granted that Christianity, Judaism, and Islam are the "Abrahamic faiths." Recently, though, out of curiosity, I decided to sit down and read the Koran, and as I sat there scanning through the Adam and Eve story, or reading something about Moses, it struck me that I had no idea how these ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2gyceu/how_did_mohammed_and_his_followersand_for_that/ | {
"a_id": [
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"score": [
9,
2,
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"text": [
"You may also be interested in reading some of the answers in this fairly recent [AMA on Pre-Islamic Arabia](_URL_0_).",
"I asked a very similar [question](_URL_0_) recently, that received some infor... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/28n21d/ama_preislamic_arabia/"
],
[
"http://www.reddit.com/r/AskHistorians/comments/2b423q/why_did_islam_model_itself_after_judaism_what/"
],
[]
] | |
7d1xda | if carbon dioxide is bad for you to inhale, and people provide it when you breath out, wouldn't the carbon dioxide do any damage to the person getting mouth to mouth? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7d1xda/eli5_if_carbon_dioxide_is_bad_for_you_to_inhale/ | {
"a_id": [
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"score": [
3,
10,
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"text": [
"It's not enough to cause harm. Your exhaled air is still quite high in oxygen, and is *much* better for the other person than no breathing.",
"Carbon dioxide doesn't hurt you. A lack of oxygen hurt... | [] | [] | [
[],
[],
[]
] | ||
kllzy | Theory | I get told quite often that Evolution is just a theory. (Should I capitalize 'evolution'?)
My response is usually something like...
"You're thinking of the wrong use of the word 'theory'. A *scientific* theory means that it has been tested and proven without fail MANY times. To put it in perspective...gravity is a... | askscience | http://www.reddit.com/r/askscience/comments/kllzy/theory/ | {
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"score": [
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2,
2,
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"text": [
" > A scientific theory means that it has been tested and *proven* without fail MANY times.\n\nThis is incorrect - theories are never *pr... | [] | [] | [
[],
[],
[
"http://www.reddit.com/r/askscience/comments/kj1tk/what_is_the_difference_between_a_hypothesis_a/c2knyao"
],
[],
[],
[
"http://www.reddit.com/r/askscience/comments/kj1tk/what_is_the_difference_between_a_hypothesis_a/c2knyao"
]
] | |
gafqa | Is there any science behind why elderly people often die close to the death of their significant other? It also seems to happen frequently with pets. | I have heard of many people and know many personally who have had grandparents and pets that once one passes away the other goes within days weeks or months, is there any science behind this? | askscience | http://www.reddit.com/r/askscience/comments/gafqa/is_there_any_science_behind_why_elderly_people/ | {
"a_id": [
"c1m3ptc",
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"score": [
7,
3
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"text": [
"increased stress and depression in the immediate period after\n\nhere's one showing heart problems associated with bereavement [link](_URL_1_)\n\nEdit: heres a [link](_URL_0_) to the original infamous Finnish study",
"I ... | [] | [] | [
[
"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1380614/",
"http://esciencenews.com/articles/2010/11/14/death.spouse.child.may.cause.higher.heart.rate.other.dangers"
],
[]
] | |
r035l | What is "chemistry" between two people actually? What is the logical explaination? Why is it so instant? | Like when two people meet they instantly feel connected but sometimes you meet attractive partners but you never "click". Why is that?
**EDIT** Also, why do you love this person instead of someone else? Why is this person more attractive? You never logically go for the most attractive guy/girl in the room... But somet... | askscience | http://www.reddit.com/r/askscience/comments/r035l/what_is_chemistry_between_two_people_actually/ | {
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42,
5,
8,
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],
"text": [
"It was thought for a while that there may be some kind of pheromone exchange responsible for this effect. That idea has been largely dismissed though as no Vomeronasal organ whic... | [] | [] | [
[
"http://www.epjournal.net/wp-content/uploads/ep02177194.pdf"
],
[
"http://www.pbs.org/wgbh/evolution/library/01/6/l_016_08.html"
],
[],
[
"http://www.youtube.com/watch?v=pEmX8Rim-hs"
]
] | |
8zmn0a | what is chemotherapy, and what happens during it? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8zmn0a/eli5_what_is_chemotherapy_and_what_happens_during/ | {
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"text": [
"The elimination of fast cell reproduction. \nHair cells grow at a quick rate and is the reason why your hair falls out as well. ",
"It kills a LOT of ce... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
2b031v | How was honey harvested in ancient times? Were bees kept like they are today or was all honey harvested from the wild? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2b031v/how_was_honey_harvested_in_ancient_times_were/ | {
"a_id": [
"cj0olxj",
"cj0qv77"
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"score": [
4,
3
],
"text": [
"hi! Could you specify which region/culture you're interested in - e.g. Greece, Nepal, the Maya, etc. That will help the appropriate historian(s) provide a meaningful response. Thanks!",
"Bees were kept, but not like toda... | [] | [] | [
[],
[]
] | ||
flxqj0 | how can plants turn sun and water (and dirt) into wood, leavies and pretty much anything they need? | Inspired by the cow post. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/flxqj0/eli5_how_can_plants_turn_sun_and_water_and_dirt/ | {
"a_id": [
"fl15ra4",
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"score": [
24,
10
],
"text": [
"You are actually missing out a critical part: air\n\nYes, most of a mass a plant actually comes from carbon dioxide within the air. They can convert it into plants with the Calvin cycle, which is a cycle made up of several... | [] | [] | [
[],
[]
] | |
61gsol | welfare and food stamps | What are they, who can apply for them, and what exactly do they provide? I've heard the term thrown around, but what does it actually mean? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/61gsol/elif_welfare_and_food_stamps/ | {
"a_id": [
"dfecyzb",
"dfeseli"
],
"score": [
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3
],
"text": [
"Welfare is sometimes called TANF or temporary assistance for needy families. Those who fall under federal guidelines for poverty may apply and are given money for rent, bills and other necessities. Typically, there is a work... | [] | [] | [
[],
[
"http://foodhelp.wa.gov/bf_benefit_estimator.htm"
]
] | |
sr6hn | What is a good book to read that will give me a survey history of modern European history? | I'm a high school student who took a European history class this year and fell in love with it. We have class readings from one book, but I want to read a different book this summer without having to analyze it and the like. Any suggestions? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/sr6hn/what_is_a_good_book_to_read_that_will_give_me_a/ | {
"a_id": [
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3,
3,
2,
2
],
"text": [
"The trouble is that there are very few survey histories which aren't textbooks. The only one I can think of off the top of my head is [A Concise History of M... | [] | [] | [
[
"http://www.bedfordstmartins.com/Catalog/discipline/History/TheBedfordSeriesinHistoryCulture/European",
"http://www.amazon.com/Concise-History-Modern-Europe-Solidarity/dp/1442205342/ref=sr_1_5?s=books&ie=UTF8&qid=1335329025&sr=1-5"
],
[
"http://www.amazon.com/Postwar-History-Europe-Sin... | |
dlj8bw | why are some atoms "easier" to become ions than others? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dlj8bw/eli5_why_are_some_atoms_easier_to_become_ions/ | {
"a_id": [
"f4qqspb",
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"score": [
6,
2
],
"text": [
"Because of their Electronegativity (hope thats the right translation) and their size. The Electronegativity basically is a force (Noted in the Periodic table) which defines how strong they are able to \"suck\" other electron... | [] | [] | [
[],
[]
] | ||
3squye | what's the difference between a $10 bottle of wine compared to a $100 bottle? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3squye/eli5_whats_the_difference_between_a_10_bottle_of/ | {
"a_id": [
"cwznfu5",
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"score": [
6,
3,
2
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"text": [
"A person who has developed the palette for it could tell the difference, and appreciate it. \nI think the subtleties of the $100 bottle would be lost on me, but I have tasted some $30/bottle wines, and... | [] | [] | [
[],
[],
[]
] | ||
84slxr | animal pain, human pain | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/84slxr/eli5_animal_pain_human_pain/ | {
"a_id": [
"dvs22m2",
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7,
5,
3
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"text": [
"Other mammals experience pain pretty much as humans do. But they don't have language or facial expressions to describe their suffering. And they need to get up and walk away, if the alternative is to si... | [] | [] | [
[],
[],
[]
] | ||
10yjhm | Who were the great administrators? | In my own studies of history I mostly focus on the more military aspects (it's just exciting), but I'm also interested on who were the innovative policy makers and economists of the world.
Now I'm cool with any suggestions but I do personally prefer more ancient to medieval time period.
So who do you guys think were ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/10yjhm/who_were_the_great_administrators/ | {
"a_id": [
"c6hw4r6"
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"score": [
2
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"text": [
"If you're looking into US history I strongly recommend you examine Andrew Jackson's contest with the [Second Bank of the United States](_URL_0_)."
]
} | [] | [] | [
[
"https://en.wikipedia.org/wiki/Bank_War"
]
] | |
6o86e9 | Planets can have rings. Can stars have the same sort of rings? | I don't think Sol's asteroid belt would count as a ring because, I assume, it's not nearly as dense as the rings around Saturn. Can a star even have a ring so dense as to be very visible?
Thanks in advance! | askscience | https://www.reddit.com/r/askscience/comments/6o86e9/planets_can_have_rings_can_stars_have_the_same/ | {
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"text": [
"It is definitely possible. \n\nFirst, a solid celestial body would have to enter the star's sphere of gravitational influence. Then, it would have to pass t... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Protoplanetary_disk"
],
[
"https://en.wikipedia.org/wiki/Poynting%E2%80%93Robertson_effect",
"https://en.wikipedia.org/wiki/Yarkovsky_effect",
"https://en.wikipedia.org/wiki/Roche_limit"
],
[]
] | |
4nv0it | why did linux get more popular then unix? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4nv0it/eli5_why_did_linux_get_more_popular_then_unix/ | {
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"text": [
"It was free. It had no support guarantee, but the lack of cost made up for it. And because it was open source it could be ported to anything it could be compiled for, and there wasn't a big company mak... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/History_of_Unix#/media/File:Unix_history-simple.svg"
]
] | ||
36h00f | how come i can remember a certain moment from my childhood, yet i can't remember a maths equation i learned today? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/36h00f/eli5_how_come_i_can_remember_a_certain_moment/ | {
"a_id": [
"crdw1y0"
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"score": [
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"text": [
"You have two forms of memory - short-term and long-term. The first is far from perfect but can get better with the proper training. So just after you learn it, your math equation is in short term memory.\n\nWhen you sleep, some of the long-term m... | [] | [] | [
[]
] | ||
1acpia | Why are there 3 different names for meteoroids/meteorites/meteors? | askscience | http://www.reddit.com/r/askscience/comments/1acpia/why_are_there_3_different_names_for/ | {
"a_id": [
"c8w5gd9",
"c8w5ghn"
],
"score": [
8,
2
],
"text": [
"Because they are different by definition.\n\n**Meteoroid**: A small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.\n\n**Meteor**: A small body of matter from outer space that... | [] | [] | [
[],
[]
] | ||
2vp22s | why do mobile video games have so many commercials on tv all of a sudden? | Also, getting a sponsor like Kate Upton, that seems so out of place | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2vp22s/eli5_why_do_mobile_video_games_have_so_many/ | {
"a_id": [
"cojn4gx",
"cojna4h",
"cojnnbk"
],
"score": [
3,
5,
3
],
"text": [
"Mobile phones, and thus mobile games are so popular now that it makes financial sense for big-name games to spend the big TV money in order to sell more games.",
"Mobile games have the best potentia... | [] | [] | [
[],
[],
[]
] | |
476t1w | how can a person have 8 pack abs when theres only 6 rectus abdominis? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/476t1w/eli5_how_can_a_person_have_8_pack_abs_when_theres/ | {
"a_id": [
"d0anp5b",
"d0ar1ga"
],
"score": [
6,
19
],
"text": [
"It's partly genetics and partly an illusion. Without the right genetics the illusion is much harder to give off and thus would need intense exercise on your lower stomach & having an incredibly low body fat %, but it's no... | [] | [] | [
[],
[]
] | ||
bk9mrg | what are stocks and what is insider trading? how are they related to each other? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bk9mrg/eli5_what_are_stocks_and_what_is_insider_trading/ | {
"a_id": [
"emezl05",
"emezmud",
"emezqse",
"emf01yr",
"emfdi5i"
],
"score": [
5,
2,
2,
3,
2
],
"text": [
"This is VERY ELI5\n\n & #x200B;\n\nStocks are a share of ownership in a company. Insider trading is when someone close to or with connections inside a compan... | [] | [] | [
[],
[],
[],
[],
[]
] | |
8a43ua | why does skipping five seconds of a video often take longer due to buffering than just sitting through the five seconds? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8a43ua/eli5_why_does_skipping_five_seconds_of_a_video/ | {
"a_id": [
"dwvtmtz"
],
"score": [
20
],
"text": [
"The way online video is compressed, you're receiving data that represents incremental updates from the last frame. If you start playing the video at the beginning, it all works as intended.\n\nHowever, if you start playing in the middle, you nee... | [] | [] | [
[]
] | ||
ajezn3 | Does a radar gun in a moving vehicle function the same as one in a stationary vehicle? | Car A has the radar gun and is moving at a constant 75 miles per hour.
Car B is next to Car A moving at 75 mph, does the radar gun clock Car B at 0 mph or 75 mph?
Car B is moving past Car A at 80 mph, does the radar gun clock Car B at 5 mph or 80 mph?
Car B is moving at 70 mph and being passed by Car A. Does the ra... | askscience | https://www.reddit.com/r/askscience/comments/ajezn3/does_a_radar_gun_in_a_moving_vehicle_function_the/ | {
"a_id": [
"eev5p2y",
"eev6css"
],
"score": [
16,
3
],
"text": [
"All detectors can only tell you relative speed. So that means that a stationary radar would detect 0 in the first case, 5 in the second and 5 (speed is absolute value of velocity) in the third, 75 in the last. You have the ... | [] | [] | [
[
"https://www.stalkerradar.com/law_dsr.php"
],
[
"http://physicscentral.com/explore/plus/galilean-relativity.cfm"
]
] | |
9jbopb | how does a gym's business model hold up? the equipment is insanely costly and the memberships cost next to nothing in most cases. how does it pay off the investment and become a stable income source? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9jbopb/eli5_how_does_a_gyms_business_model_hold_up_the/ | {
"a_id": [
"e6q458i",
"e6q45j3",
"e6q4sa7",
"e6q6o68",
"e6q7i0p",
"e6q9qbg",
"e6qfflq",
"e6qiuyh",
"e6r074n"
],
"score": [
15,
29,
27,
5,
19,
2,
4,
2,
2
],
"text": [
"I think a lot of it relies on people paying for gym memberships th... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[],
[]
] | ||
3h227v | What happened to the territory gained by Justinian I? | I was watching the awesome Extra Credits season about Justinian and Theodora, how he recaptured North Africa, Sicily, Italy and even a bit of Spain. Unfortunately, the series ended after the defeat of the Ostrogothic army after it wanted to recapture Rome. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3h227v/what_happened_to_the_territory_gained_by/ | {
"a_id": [
"cu40fj4"
],
"score": [
3
],
"text": [
"It was lost again.\n\nIn Italy the war with the Ostrogoths lasted for decades and devastated the country. Some historians hold this war to be the true end of antiquity. As Goldsworthy puts it, it \"probably destroyed many aspects of Roman culture... | [] | [] | [
[]
] | |
163ucx | How do we know the orbit of the sun? | We've only had the math and technology to accurately take measurements for a hundred years out of a 30 million year cycle. Are our instrements really that good or are we making pretty big assumptions? | askscience | http://www.reddit.com/r/askscience/comments/163ucx/how_do_we_know_the_orbit_of_the_sun/ | {
"a_id": [
"c7shlbv",
"c7shze4"
],
"score": [
2,
3
],
"text": [
"Are you thinking about how the sun travels around the Milky Way?",
"Yes, our instruments are actually are that good, but the reason you're looking for is our toolbox has grown significantly since the days of Galileo. We ... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Milky_Way",
"http://imagine.gsfc.nasa.gov/YBA/M31-velocity/Doppler-shift-2.html"
]
] | |
48zmpw | how do the inner leaves of cabbage perform photosynthesis? | From what I know, it grows from the inside out, the inner leaves never actually being exposed to sunlight. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/48zmpw/eli5_how_do_the_inner_leaves_of_cabbage_perform/ | {
"a_id": [
"d0nvzgy",
"d0ny3ws"
],
"score": [
5,
2
],
"text": [
"The inner leaves may not see the sunshine but the entire plant acts as a \"unit\". Much like kindergarten, sharing is important for the success of everything involved ",
"You need to remember that cabbage, as we know it,... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Cruciferous_vegetables",
"https://en.wikipedia.org/wiki/Brassica_oleracea",
"https://en.wikipedia.org/wiki/Brassica_oleracea#/media/File:Brassica_oleracea0.jpg"
]
] | |
3j5wwy | how does applying toothpaste to a cd to help fix scratches work? | Is it just a hoax? I've tried before and never could get it to work, but my fallout 3 disc is scratched all to hell and I want to play it before 4 comes out. (I know 4 comes with a copy of 3 but I don't want 4 sitting on the shelf for a month before I can play it) | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3j5wwy/eli5_how_does_applying_toothpaste_to_a_cd_to_help/ | {
"a_id": [
"cumkaud",
"cuml5ix",
"cumob58",
"cumqbiy",
"cun3tj4"
],
"score": [
4,
8,
22,
13,
2
],
"text": [
"Toothpaste is a very fine polish, so it helps to polish out the scratches. There are a number of potentially abrasive ingredients potentially even silica (... | [] | [] | [
[],
[],
[],
[],
[]
] |
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