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 |
|---|---|---|---|---|---|---|---|---|---|
jmg9g | foreign accent syndrome
(if there is an explanation) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jmg9g/eli5_foreign_accent_syndrome_if_there_is_an/ | {
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" > (if there is an explanation)\n\nThere most certainly is!\n\nThe name \"Foreign Accent Syndrome\" is a bit of a misnomer (a mistaken name). If you listen to a person with FAS for... | [] | [] | [
[
"http://www.youtube.com/watch?v=f1rC43dvbws"
],
[
"http://www.news.com.au/weird-true-freaky/speedway-crash-victim-suddenly-bilingual/story-e6frflri-1111114418448"
],
[
"http://www.youtube.com/watch?v=f1rC43dvbws"
],
[
"http://www.news.com.au/weird-true-freaky/speedway-crash-victim-sudd... | ||
1qvsli | If the Titans were based on a previous belief system's deities, then which belief system? Pre-Indo-European? Proto-Indo-European? Proto-Hellenic? Or Pre-Dorian Mycenaean? | A [popular question](_URL_0_) two weeks ago asked about if the Titans were a set of older gods from a pre-Greek society. There was somewhat of a consensus agreeing that they had been.
However there was not a consensus on which society/era they came from and in fact there were several debates as to whether the presence... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1qvsli/if_the_titans_were_based_on_a_previous_belief/ | {
"a_id": [
"cdh1leh"
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"text": [
"For the record, I don't see where you find a consensus in that thread that the Titans were a set of older gods. The two best posts, by /u/storrsh and /u/koine_lingua, certainly don't support that idea.\n\nI fear you may have misconstrued both po... | [] | [
"http://www.reddit.com/r/AskHistorians/comments/1pw0un/were_the_titans_the_gods_of_a_pregreek_society/"
] | [
[]
] | |
n2jiv | An expanding universe/Hubble constant question. | So... As I understand it, Hubble's equation correlates a [relationship between red shift and distance](_URL_0_) for observed galaxies with more distant galaxies showing a greater red shift. This led to the theory of the expanding universe. My question is, since the light from more distant galaxies is older (took more... | askscience | http://www.reddit.com/r/askscience/comments/n2jiv/an_expanding_universehubble_constant_question/ | {
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"text": [
"I'm not sure I understand your question. More redshift means an object is moving away from us faster. Less redshift means an object is m... | [] | [
"http://en.wikipedia.org/wiki/File:Hubble_constant.JPG"
] | [
[],
[
"http://www.nobelprize.org/nobel_prizes/physics/laureates/2011/"
],
[],
[],
[
"http://www.nobelprize.org/nobel_prizes/physics/laureates/2011/"
],
[]
] | |
c3t7jo | Why do Spanish colonies seem to leave lots of mixed race descendants (between the Spaniards + the indigenous people) and even the descendants seem to have a unique culture, different from Spanish & the Indigenous people, meanwhile the English, French, and other ones don't? | Spanish colonies like most of Latin America, Mexico & other Central Americas, the Philippines, they have lots of Spanish x Indigenous people (Mestizo? Hispanic?). And those descendants are so many that they developed & grew their own culture.
I know there are lots of light-skinned Indigenous Australians & New Ze... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/c3t7jo/why_do_spanish_colonies_seem_to_leave_lots_of/ | {
"a_id": [
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"score": [
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"text": [
"To be rather pedantic in the case of Hong Kong, the main reason why it seems so Han-dominant is that the majority of its population migrated there in the wake of various disturbances on the mainland (... | [] | [] | [
[],
[
"https://www.reddit.com/r/AskHistorians/comments/andauz/did_colonial_authorities_recognize_indigenious/eftaaxg/",
"https://www.reddit.com/r/AskHistorians/wiki/southamerica#wiki_racial_differences_between_north_america_and_latin_america",
"https://www.reddit.com/r/AskHistorians/comments/9hpan7/wh... | |
1lq8b3 | why do some devices (cell phones, bluetooth devices, clock radios, etc.) only use small internal antennas and other devices (wireless routers, walkie talkies, televisions, etc) use bigger external antennas? | I have seen wireless routers that have no external antenna, one and as many as three antennas. What is the difference between these devices? Also I have a USB wireless adapter and a PCI wireless adapter; the USB seems to work just as well as the PCI one even though the USB does not have an external antenna. Please expl... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1lq8b3/eli5_why_do_some_devices_cell_phones_bluetooth/ | {
"a_id": [
"cc1od2c"
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"score": [
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"text": [
"External wifi antennas can output more signal further.\n\nA wifi antenna in a phone simply has to detect and connect to a router. A wifi antenna in a router needs to broadcast a load of data and receive a load of data to possibly dozens of device... | [] | [] | [
[]
] | |
beuw6c | Why are albino reptiles yellow but albino mammals white? | askscience | https://www.reddit.com/r/askscience/comments/beuw6c/why_are_albino_reptiles_yellow_but_albino_mammals/ | {
"a_id": [
"elbid4z"
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"text": [
"Mammals have 1 pigment: melanin. The more melanin, the darker the skin. If you’re an albino mammal, you have no pigment, so you’re white (not white as in Caucasian, white as in literally blank white).\n\nThere’s actually no such thing as an albin... | [] | [] | [
[]
] | ||
d92mlm | if the earth's core produces geothermal energy which is a renewable resource - why aren't we harvesting this energy? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d92mlm/eli5_if_the_earths_core_produces_geothermal/ | {
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"text": [
"We are - it's a growing energy resource. Historically, it was limited to areas near tectonic plate boundaries, but recent technology has changed that - and it's now growing more an... | [] | [] | [
[],
[],
[],
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] | ||
4751hi | why does bath salts / minerals make bath water feel hotter than normal? | I enjoy taking baths. I regularly use bubbles and have lately been getting into using bath salts. Normally filling the tub at the hottest temperature is just perfect! I've noticed that when I use salts, though, it is extremely hot (far too hot for me to handle).
I take baths often enough that the common thread really... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4751hi/eli5_why_does_bath_salts_minerals_make_bath_water/ | {
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"text": [
"I don't have any source for this, but I'm guessing it might have something to do with bath salts removing dead skin. Think of water touching a cut where a fresh skin layer is revealed - it feels like it burns. Maybe the salt... | [] | [] | [
[],
[]
] | |
v7vw7 | lagrangian points | I’ve done some research on it, but I don’t really understand what it is, and why they occur. Is it something to similar to geosynchronous orbit, or am I heading in the wrong direction? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/v7vw7/eli5_lagrangian_points/ | {
"a_id": [
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"score": [
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2
],
"text": [
"[its easiest to visualise using point 1](_URL_1_). If you think that there's two objects attracting each other (earth and sun) then there's going to be a point between the two where the gravitational pull from each is equal,... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Jupiter_Trojan",
"http://en.wikipedia.org/wiki/Lagrangian_point"
],
[]
] | |
2lpy0n | what happens when someone dies will-less? | Like what happens to all their stuff? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2lpy0n/eli5_what_happens_when_someone_dies_willless/ | {
"a_id": [
"clx1hir"
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"text": [
"Somebody who dies without a will is said to die \"intestate.\" After their debts are paid off, the decedent's estate (leftover stuff) will be given to relatives based on a formula which varies by state or country. Usually that means spouse and/or... | [] | [] | [
[]
] | |
4en2vg | what is it called when one's foot suddenly bends to one side, causing the person to trip or suddenly fall down, and why does it happen? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4en2vg/eli5_what_is_it_called_when_ones_foot_suddenly/ | {
"a_id": [
"d21j60v"
],
"score": [
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],
"text": [
"It's called \"rolling\" or \"spraining\" your ankle.\n\nYour ankle joint is a rounded rod pushing down on a cup. Normally, if you put weight straight down on the cup, it will stay still. However, if the cup is slightly tilted and you put weight d... | [] | [] | [
[]
] | ||
5mu6a4 | Frozen pattern on trampoline, how did it form in such a way? | [deleted] | askscience | https://www.reddit.com/r/askscience/comments/5mu6a4/frozen_pattern_on_trampoline_how_did_it_form_in/ | {
"a_id": [
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"score": [
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],
"text": [
"Without a closer look I'd guess: you had a solid thin layer of ice on the whole surface. The lines are where the sheet has stretched when you jumped, thus separating from the ice. Check the directions of the thread in the fabric, if I'm right the... | [] | [] | [
[]
] | |
529tre | why, when you faint, your body covers you in a thin layer of sweat really fat? | I've fainted and passed out multiple times, and I get why you get tunnel vision and why you can't hear anything when you wake up.. but, if when you pass out from low blood pressure you feel really cold, then it makes no sense that you sweat, because that would cool you down even more.. right? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/529tre/eli5_why_when_you_faint_your_body_covers_you_in_a/ | {
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"text": [
"You're cold because you're losing heat... through your sweat\n\nWhy you sweat is a different question but it mostly has to do with your immune system reacting to your low blood pressure",
"While we'... | [] | [] | [
[],
[],
[]
] | |
1mrrom | if i can see the moon and the sun in the middle of the day, does that mean that the other side of the world can't see either? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1mrrom/eli5_if_i_can_see_the_moon_and_the_sun_in_the/ | {
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"c... | [] | [] | [
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[],
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"http://i.imgur.com/XMmjOU0.jpg?1?9526"
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"http://astro.unl.edu/classacti... | ||
2hjfmx | What did the Ottoman Empire do to modernize itself in the 19th and early 20th centuries, and how successful were the reforms? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2hjfmx/what_did_the_ottoman_empire_do_to_modernize/ | {
"a_id": [
"cktxotn"
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"score": [
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"text": [
"I'm actually going to disagree with /u/Phychic_Killer in large part.\n\nThe original impetus for the 19th century reforms was Napoleon's invasion of Egypt and Syria, which ended in 1801. His campaign proved decisively (as it did for so many Europ... | [] | [] | [
[]
] | ||
250vba | Was the MG42's rate of fire significant to its effectiveness or was it due to the doctrine of German troops around the use of machine guns? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/250vba/was_the_mg42s_rate_of_fire_significant_to_its/ | {
"a_id": [
"chcl0ua",
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"text": [
"The MG42 was not unique in terms of rate of fire. In fact, the Soviets had the highest RPM gun of the war in the form of the ShKAS (although it was primarily used on vehicles, since it chewed through ammo at such an insan... | [] | [] | [
[],
[]
] | ||
15swhx | To what extent has the culture or national identity of post-colonial nations been defined by opposition to their colonial power? | I've been interested in learning more about decolonization lately, so I'm just starting on reading *A Savage War of Peace: Algeria 1954-1962* by Alistair Horne. Something that's particularly interesting to me in this book is Horne's description of a liberal, middle-class faction of Algerian Muslims who were in favor of... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/15swhx/to_what_extent_has_the_culture_or_national/ | {
"a_id": [
"c7ppez8"
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"score": [
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"text": [
"Well, this a pretty huge question, so I'll do my best to answer it with reference to my area of study, the British West Indies. \n\nThe West Indies are unique in two regards. First, they were the earliest region to be colonised and, in several o... | [] | [] | [
[]
] | |
1ytiky | How were the names of American Battleships slected? | I know they were all named for states (except for the USS Kearsarge), but how was the specific state chosen? Was it a lottery, or by population, or what? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ytiky/how_were_the_names_of_american_battleships_slected/ | {
"a_id": [
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"text": [
"This is an interesting question because it is both an entirely trivial topic and a very important subject. On the trivial side the name of a ship is meaningless in terms of it's capability and performance, and any designati... | [] | [] | [
[],
[
"http://www.history.navy.mil/faqs/faq63-1.htm",
"http://www.history.navy.mil/branches/org9-4.htm#1917"
]
] | |
98la7o | british royal family? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/98la7o/eli5_british_royal_family/ | {
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"text": [
"In theory, the Queen holds a great deal of power. She appoints the Prime Minister, the members of the House of Lords, and many other important people. All new laws must be approved by her.\n\nIn practice, she is a figurehead. The Prime Minister m... | [] | [] | [
[]
] | ||
1psd7q | Enforcement of Emancipation Proclamation | How was the freeing of the slaves in the South after the Civil War implemented? What forced former slave owners to free their slaves (military force, police force, etc.)? How did former slave owners and slaves get along after liberation? Once freed, what did most former slaves do for a living? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1psd7q/enforcement_of_emancipation_proclamation/ | {
"a_id": [
"cd5oknz"
],
"score": [
5
],
"text": [
"It's almost 6am and I'm crashing from an all nighter writing papers but here's my best shot. If really wanted I'll find sources and correct when I come out of my coma. \nI apologize for the wall of text too, on mobile and love the civil war. \n\n... | [] | [] | [
[]
] | |
3vb2fp | When did people start to attach meanings to flowers? | It seems that humans have attached meaning to flowers a long time ago, and I am really interested to know when & how | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3vb2fp/when_did_people_start_to_attach_meanings_to/ | {
"a_id": [
"cxlyj7f"
],
"score": [
2
],
"text": [
"This may be a question better suited for /r/AskAnthropology"
]
} | [] | [] | [
[]
] | |
qcwup | Are pictures of Galaxies really what Galaxies look like? | I'm talking about the shape. Suppose you have this picture of a Galaxy in 3 quarter profile. Then the 'front' of that galaxy must be thousands of lightyears closer to us than the back end. Since light takes time to travel and all that, the front stars and especially their position must be thousands of years younger/mor... | askscience | http://www.reddit.com/r/askscience/comments/qcwup/are_pictures_of_galaxies_really_what_galaxies/ | {
"a_id": [
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2,
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"text": [
"The diameter of a galaxy is relatively insignificant relative to its rotational period.\n\nIn the case of the milky way, the galaxy rotates every 15 million years, or more, while the galaxy itself is o... | [] | [] | [
[],
[],
[]
] | |
13t45n | Does boiling purified water for 5 minutes actually make it more sterile than boiling tap water for 5 minutes? | If you take tap water, filter it through a Brita water filter, then boil it for 5 minutes, is it more sterile than taking regular tap water (in a normal, first world country) and boiling it for the same amount of time? Also, is it necessary to boil water for 5 minutes, or will something like 30 seconds boiling time wo... | askscience | http://www.reddit.com/r/askscience/comments/13t45n/does_boiling_purified_water_for_5_minutes/ | {
"a_id": [
"c76xheh",
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"score": [
7,
3,
3
],
"text": [
"Domestic water filters are not (generally) there to sterilise, they are there to remove stuff like chlorine and mineral salts (usually through the use of [activated carbon](_URL_0_) and ion exchange res... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Activated_carbon"
],
[],
[]
] | |
5n57gu | How were pikes used in the American revolution? | I've found several simple pikeheads that were described as being used in the revolution as "trench pikes". We're these actually used, and if so, how? _URL_0_ The pike in question | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5n57gu/how_were_pikes_used_in_the_american_revolution/ | {
"a_id": [
"dc9uu6a"
],
"score": [
3
],
"text": [
"These look like Sergeant's Spontoons. In theory they could still be used defensively against cavalry charges, as pikes were in the hands of troops in the 17th c. and earlier. But in the 18th c. most soldiers were given muskets with bayonets, an... | [] | [
"http://www.thepirateslair.com/9-pike-head-flat-1.html"
] | [
[
"https://arteis.wordpress.com/2010/10/"
]
] | |
4s1rxx | how does eating more portions throughout the day make you lose weight more than just eating less, (ie. one meal)? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4s1rxx/eli5_how_does_eating_more_portions_throughout_the/ | {
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"text": [
"The idea is that you do end up eating less. Eating smaller meals more frequently keeps you consistently satisfied, so you don't get real hungry and then have a huge 1000 Cal lun... | [] | [] | [
[],
[],
[],
[]
] | ||
25nfeg | what's so special about russian engines and why we can't build our own? | I mean we have a wide experience in missiles, jet engine and even ICBM technology. Why is that we can't build an engine to go space? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/25nfeg/eli5_whats_so_special_about_russian_engines_and/ | {
"a_id": [
"chivgkr",
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"score": [
2,
2,
2
],
"text": [
"Unless OP is not American...",
" > I mean we have a wide experience in missiles, jet engine and even ICBM technology. \n\nThe US does have this experience, the best of any place in the world, but bu... | [] | [] | [
[],
[],
[]
] | |
2yuc8t | Are insects not smart enough to figure out the concept of "danger"? | I'm using ants as my example. I can have ants crawl on my desk at work, and I can kill those ants, but they keep coming. I've had facilities spray where they come in and that stopped them for a while, but they always come back.
So do ants just not understand the concept of "a lot of our ant buddies who go that way n... | askscience | http://www.reddit.com/r/askscience/comments/2yuc8t/are_insects_not_smart_enough_to_figure_out_the/ | {
"a_id": [
"cpdi1b8"
],
"score": [
8
],
"text": [
"Insects definitely can learn danger. Honeybees are known to [avoid certain flowers](_URL_0_) after being confronted with a dead bee on that flower earlier. Crickets also seem to [observe the behavior of other crickets](_URL_1_) that were exposed ... | [] | [] | [
[
"http://onlinelibrary.wiley.com/doi/10.1046/j.1461-0248.2001.00228.x/abstract",
"http://www.sciencedirect.com/science/article/pii/S0960982205010419",
"http://www.jstor.org/stable/4534826?seq=1#page_scan_tab_contents"
]
] | |
403w7k | How does electromagnetic shielding work? | I've read the wikipedia article here:
_URL_0_
But I can't "picture" how the mechanism of having a cage-like piece of metal with holes would affect electromagnetic waves. EM waves are caused by photons, right? And the photon "wave" doesn't actually change positional amplitude when the wave amplitude changes, right? Ph... | askscience | https://www.reddit.com/r/askscience/comments/403w7k/how_does_electromagnetic_shielding_work/ | {
"a_id": [
"cyreubg"
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"score": [
5
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"text": [
"Think about it in terms of superposition: EM field that enters the cage unimpeded must be counteracted by some other EM field. Since the cage is needed for that counteraction, it must be that the cage is radiating a field that cancels out the ext... | [] | [
"https://en.wikipedia.org/wiki/Electromagnetic_shielding"
] | [
[]
] | |
26sd3r | copyright laws with holy books | How are the Bible, Quran, and Torah published? Are there any copyright laws? Can any publishing company decide to print them? Are they technically "open source?" | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/26sd3r/eli5_copyright_laws_with_holy_books/ | {
"a_id": [
"chtzmxl",
"chu24rq"
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"score": [
4,
3
],
"text": [
"The books are in the public domain, but the translations of them can be covered by copyright. So, if you want to publish the Bible, you have four choices:\n\n- Print it in the original text (Hebrew, Greek, Aramaic)\n- Print ... | [] | [] | [
[],
[]
] | |
251ql3 | where do rich people whose assets are mostly tied to company stock get their spending money? | For example, Mark Zuckerberg or the guy who owns SnapChat, where do they get their disposable income? Do they sell share of their stocks? For private companies, how does this work? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/251ql3/eli5_where_do_rich_people_whose_assets_are_mostly/ | {
"a_id": [
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"score": [
17,
107,
4,
3,
3,
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"text": [
"For guys that made their money by being owners of companies that eventually go public, th... | [] | [] | [
[
"http://finance.yahoo.com/q/it?s=FB+Insider+Transactions"
],
[
"http://en.wikipedia.org/wiki/Dividend"
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[],
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[],
[],
[
"http://www.ft.com/cms/s/0/f16b06a4-68a5-11e3-996a-00144feabdc0.html"
],
[]
] | |
axlh17 | why doesn’t food get into our lungs? | If we breathe and eat simultaneously, what separates food from oxygen? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/axlh17/eli5_why_doesnt_food_get_into_our_lungs/ | {
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"text": [
"Food goes down the esophagus, air goes down the trachea. The trachea closes when we swallow so that no food gets into our lungs.",
"Basically you have two pipes, breathy pipe and eaty pipe. They ar... | [] | [] | [
[],
[],
[]
] | |
1slcyi | Of what scale were the conflicts between Japan & China / Russia during WWII? | According to [Wiki](_URL_0_), China suffered over 3-Million more Military deaths than the U.S. And of course, we know the insane sacrifice Russia paid in lives during the entire war.
As an American, I have very little knowledge of the Japanese role in the war outside of the Pacific. How far did they get into Eastern-A... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1slcyi/of_what_scale_were_the_conflicts_between_japan/ | {
"a_id": [
"cdyrfny",
"cdz31jd"
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"score": [
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"text": [
"Japan controlled a puppet state in the Chinese part of Manchuria known as Manchuko (led by the last emperor of china Pu-Yi). The rest of Mongolia was controlled by a Mongolia communist state supported by the Soviets. \n\nEve... | [] | [
"http://en.wikipedia.org/wiki/World_War_II_casualties"
] | [
[
"http://www.worldwar2database.com/html/nomonhan.htm",
"http://www.militaryhistoryonline.com/20thcentury/articles/nomonhan.aspx"
],
[]
] | |
202nn1 | Why did the Calvinist movements of Germany die out? | The Electoral Palatinate, Brandenburg, Hesse-Kassel and Anhalt were all Calvinist at one point, but that didn't last for long. Does anyone know why Calvinism in Germany was replaced by Catholicism and Lutheranism? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/202nn1/why_did_the_calvinist_movements_of_germany_die_out/ | {
"a_id": [
"cfzkuqc"
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"score": [
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"text": [
"Simply put, they never did. Protestants of the Calvinist (often times called Reformed) tradition remain a significant force in Germany today, under the umbrella of the Evangelical Church of Germany, which includes for the most part all major prot... | [] | [] | [
[]
] | |
huo9t | How did animals develop the instinct to play dead as a defense mechanism? | askscience | http://www.reddit.com/r/askscience/comments/huo9t/how_did_animals_develop_the_instinct_to_play_dead/ | {
"a_id": [
"c1yja5s"
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"score": [
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"text": [
"There are probably loads of reasons for it. I'd guess that they know dead animals look unappetizing so they want to make themselves less appetizing to the approaching predator."
]
} | [] | [] | [
[]
] | ||
51s7zo | what happens when you misspell a url but it takes you to the correct website anyway? | Did the owner purchase all domain names that are common typos and redirect them to the proper website? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/51s7zo/eli5_what_happens_when_you_misspell_a_url_but_it/ | {
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"text": [
"Yup, pretty much exactly your assumption. Either they own the alternate URL or they pay the owner to redirect (_URL_0_ takes you to google, for example). ",
"This is often the... | [] | [] | [
[
"gogle.com"
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[],
[]
] | |
kv92b | What would the night sky look like if your solar system was not part of a galaxy, and was instead just a rogue system floating between galaxies? | I'm guessing about the same, except instead of seeing stars, most of the points of light would be just other galaxies.
also, another question would be, have any rogue stars been spotted in this fashion that aren't part of any galactic super group?
[edit] For a better clarification of what I meant, this question wa... | askscience | http://www.reddit.com/r/askscience/comments/kv92b/what_would_the_night_sky_look_like_if_your_solar/ | {
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"text": [
"You can get stars thrown out of galaxies due to close interactions with other stars in a cluster for instance.\n\nYou sky would be mos... | [] | [
"http://www.dailygalaxy.com/my_weblog/2011/09/creation-of-one-of-the-largest-galaxies-in-the-universe-six-times-size-of-the-milky-way.html"
] | [
[],
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[],
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49vd48 | why do young mammals, humans included, always act so playfully? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/49vd48/eli5_why_do_young_mammals_humans_included_always/ | {
"a_id": [
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"score": [
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"text": [
"For most animals, play is a way to learn and grow. They learn social skills, hunting skills, and others while encouraging muscle growth and motor skill control.",
" > [Play is not just a pastime activity; it has the pote... | [] | [] | [
[],
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"https://en.wikipedia.org/wiki/Play_(activity\\)"
]
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zbos5 | How has the native populations of small islands been able to produce multiple generations of healthy, well-formed, non-inbred people (particularly prior to widespread tourism)? | For instance, Hawai'i. Hawai'i is in the middle of the Pacific Ocean about 2,000 miles from a major landmass. They didn't see a westerner until the 18th century. By then, it'd been populated by Polynesians and Tahitians for many hundreds of years.
I mean, if you have an initial population of 1,000, and all of them get... | askscience | http://www.reddit.com/r/askscience/comments/zbos5/how_has_the_native_populations_of_small_islands/ | {
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"text": [
"I'm not sure I follow you. Why would the [effective population](_URL_0_) be decreasing in that manner? Like, g1 = 500 unique families as you say. g2 = 500 unique families. Where the heck did 250 fa... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Effective_population_size",
"http://en.wikipedia.org/wiki/Purifying_selection"
],
[],
[]
] | |
3ksb5c | why do some laptop screens are dark when looked from below but bright from above? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3ksb5c/eli5_why_do_some_laptop_screens_are_dark_when/ | {
"a_id": [
"cv03pj7"
],
"score": [
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"text": [
"Because it's backlit from the bottom. The screen can be viewed without a backlight, but it's so dark and faint that it's almost impossible to use. "
]
} | [] | [] | [
[]
] | ||
cqhqya | How can so many different theories exist about the cause of World War One? | Looking past the ‘chance’ assassination of Franz Ferdinand, is there not some single document or documents that proves that Germany (for example) wanted a war? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/cqhqya/how_can_so_many_different_theories_exist_about/ | {
"a_id": [
"ewx7cfc"
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"score": [
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"text": [
"I would argue that the modern theories are much more nuanced and united, and that there is not much controversy left in the question of what caused World War 1: a little bit of everything. You'll find imperialism, nationalism, cultural and diplo... | [] | [] | [
[]
] | |
7vwn9s | does atmosphere influence the way music sounds? | Was just thinking about this since Elon Musk sent this car to Mars whilst playing David Bowie. I wonder if changes in atmosphere have an effect on sound waves by making them sound higher or lower, or slower or faster? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7vwn9s/eli5does_atmosphere_influence_the_way_music_sounds/ | {
"a_id": [
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"text": [
"The car is in vacuum and there is no sound in vacuum.\n\nYou need a medium for sound so if the speaker are playing the song there will be some vibration in the rest of the car as sound can travel in it. But if you where in ... | [] | [] | [
[],
[]
] | |
be5e7c | What happened to UK diplomats in Berlin following 3rd September 1939 | What happened to UK diplomats after WW2 was declared? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/be5e7c/what_happened_to_uk_diplomats_in_berlin_following/ | {
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"text": [
"Diplomatic personnel are generally afforded extensive protections in the case that the country they represent ends up at war with the country to whom they are accredited. In the case of Nevile Henderson and those supporting the British mission t... | [] | [] | [
[]
] | |
7z53wp | Why did Demosthenes and so many others refer to the Ancient Macedonians as barbarians? | Many historians today from Yale, Oxford and so on consider the Ancient Macedonians as an Ancient Greek Kingdom ((which i'm not trying to debunk)).
However Demosthenes refers to Philip/Macedonians as barbarians, which was before Philips conquest if I remember correctly.
Also was the term Barbarian not used to describ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7z53wp/why_did_demosthenes_and_so_many_others_refer_to/ | {
"a_id": [
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"text": [
"Whether or not the Macedonians were Greek was an issue on which the Greeks could never agree, because the decision was deeply political. There is no doubt that Demosthenes described Macedonians as the worst of all barbarians because it was his mi... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/619mii/was_alexander_the_great_greek/dfd1msw/"
]
] | |
6iljye | why does womens' fashion offer so many more options in terms of clothing types than mens' fashion does? was it always like this? | As the title states, my question is as to why there are so many different types of clothing available for women's fashion compared to men's fashion. Specifically I'm wondering about clothing types that are considered appropriate for professional wear. It seems odd that this division would have developed. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6iljye/eli5_why_does_womens_fashion_offer_so_many_more/ | {
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"text": [
"Business attire is conservative. In the past women had much fewer choices and were required to wear dresses of a certain length and often of muted color(depending on position of c... | [] | [] | [
[],
[],
[],
[]
] | |
15hmf2 | If there is no absolute space, how is velocity determined? | How does matter know it is approaching the speed of light, if there is no absolute space? Is there actually a true velocity that all matter has, or is there a simple explanation to my confusion? | askscience | http://www.reddit.com/r/askscience/comments/15hmf2/if_there_is_no_absolute_space_how_is_velocity/ | {
"a_id": [
"c7mihhl"
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"score": [
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"text": [
"All velocity is relative. That's what 'relativity' means. If you are travelling close to the speed of light, you only know this if you can judge it by looking at passing objects. From their point of view, you are travelling close to the speed of ... | [] | [] | [
[]
] | |
51so07 | why does super massive black holes decay slower than tiny ones? | the titles says it all, my suspection is due to the time dilating gravity around the event horison, that makes virtual particles happen less frequent? | askscience | https://www.reddit.com/r/askscience/comments/51so07/why_does_super_massive_black_holes_decay_slower/ | {
"a_id": [
"d7f0c1t",
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"score": [
2,
2
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"text": [
"The [evaporation time due to Hawking radiation](_URL_0_) is proportional to the mass cubed. So more massive black holes take longer to evaporate.",
"It is because they have a smaller surface area(where the evaporation oc... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Hawking_radiation#A_crude_analytic_estimate"
],
[]
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f2gh3o | How common was Sword usage on the japanese side during WW2? | In popular media , Japanese soldiers are shown to use their swords for close combat. Was this a common occurrence? Were soldiers of the era familiar in their use? Did the japanese army issue them or where they personal weapons?
Are there any battles of note which involve a Japanese soldier using his sword to great eff... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/f2gh3o/how_common_was_sword_usage_on_the_japanese_side/ | {
"a_id": [
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"text": [
"The wearing of Japanese style swords by front line officers was only re-introduced to the Imperial Japanese Army in 1934 by Araki Sadao, the flamboyant leader of the Imperial Way faction. This faction was opposed more or less successfully by Arm... | [] | [] | [
[]
] | |
1x94kp | Magnets and Compasses | Hello Reddit, a more simple question than most here.
Today in class we got to play with magnets and a compass, and I decided to see what would happen if I gave the compass two alternating sources of magnetism. In the end I moved the two magnets (both pointing north towards the compass) equally on opposite sides of the... | askscience | http://www.reddit.com/r/askscience/comments/1x94kp/magnets_and_compasses/ | {
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"cf9jnat",
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3,
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"text": [
"Opposite polarities of a magnet attract. Take a bar magnet and hang it on a string. The north end of the magnet points north. For the north end of the magnet to be attracted toward the north direction, there must be a sou... | [] | [] | [
[],
[
"http://en.m.wikipedia.org/wiki/Magnetic_field"
]
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2uaa61 | how can somebody be charged with attempt to commit a crime and the act of committing the crime? | For example, somebody is charged with attempted murder and murder in the same case. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2uaa61/eli5_how_can_somebody_be_charged_with_attempt_to/ | {
"a_id": [
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"score": [
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"text": [
"They can be charged with both, but they can**not** be *convicted* of both. Not for the same incident, at least.\n\nUsing your example of the person charged with both rape and attempted rape, this could be two separate instances. So if the perso... | [] | [] | [
[]
] | |
1vxchg | What happens in our brains when we accidentally switch the beginnings of two words in a sentence? | askscience | http://www.reddit.com/r/askscience/comments/1vxchg/what_happens_in_our_brains_when_we_accidentally/ | {
"a_id": [
"cewr8x7"
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"score": [
2
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"text": [
"From a psycholinguist point of view, according to the Fromkin-Garret model of speech production these kind of sound-errors happen in one of the later stages of speech production:\n\n1. Message level; you select the 'concepts' or ideas that you wa... | [] | [] | [
[]
] | ||
601bt1 | how do digital cameras turn the image into a digital file? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/601bt1/eli5_how_do_digital_cameras_turn_the_image_into_a/ | {
"a_id": [
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"text": [
"A focused image is put on the sensor by the lens(es). The sensor is essentially a big old array of photosensors, devices which measure the intensity of light and convert it to a voltage. The camera's electronics read the value of each element of ... | [] | [] | [
[]
] | ||
1e7rny | Why are only some methods of effectively superluminal motion/transportation/communication deemed to violate causality? Okay, so Alcubierre drive warp bubbles reportedly wouldn't. Would a wormhole? Would some other way? Why or why not? | askscience | http://www.reddit.com/r/askscience/comments/1e7rny/why_are_only_some_methods_of_effectively/ | {
"a_id": [
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"text": [
"Lurbqburdock has [replied in another thread](_URL_0_) where I initially asked this question. I am x-posting that reply here:\n\n > Actually, I forgot about wormholes. They don't violate causality either. A wormhole is just ... | [] | [] | [
[
"http://www.reddit.com/r/Bitcoin/comments/1e4wxz/in_master_of_orion_2_1996_this_was_a_crowning/c9xl6hp?context=1"
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[]
] | ||
svuow | Why do Space Shuttles look like they are curving back towards earth after lift off? | In videos it seems as though the space shuttles begin to curve backwards toward the earth 30-45 seconds after liftoff. | askscience | http://www.reddit.com/r/askscience/comments/svuow/why_do_space_shuttles_look_like_they_are_curving/ | {
"a_id": [
"c4hejmb",
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3,
4
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"text": [
"simply the perspective you saw it from. \n\nthe shuttle very much continued going up at a high rate of speed while it pitched over to pick up lateral velocity. \n\n\nEdit: Tense.. all of this is past now :(\n",
"I assume... | [] | [] | [
[],
[
"http://quarkology.com/12-physics/92-space/images/92C-pic-launch-path.png",
"http://media.spacetimesnews.com/media/img/photos/2011/02/23/night_shuttle_launch_t300.jpg"
]
] | |
35kgrj | why am i able to pick up a 50kg dumbbell with one hand and carry it with relative ease but picking up an entire desk that's 30kg is a ball ache? | Title.
Sorry if it's a repeat question. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/35kgrj/eli5_why_am_i_able_to_pick_up_a_50kg_dumbbell/ | {
"a_id": [
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2,
15
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"text": [
"It's the awkwardness and leverage. You're holding the dumbell right under its center of gravity. But the desk uses your arm like a lever so it weighs more. Desks are dicks. ",
"They have the same weight (downward force... | [] | [] | [
[],
[]
] | |
4zz0iz | why does it seem easier to perform a pull up if you simultaneously lift your knees upward? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4zz0iz/eli5_why_does_it_seem_easier_to_perform_a_pull_up/ | {
"a_id": [
"d6zwdsz"
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"score": [
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"text": [
"Depends how you lift your legs. If you swing them then you are creating momentum from your leg/lower body muscles thus your back/arms do not have to work so hard.\n\n\nIf you lift your legs 1st then your weight distribution is different (you are ... | [] | [] | [
[]
] | ||
1warkl | Why are semiconductors used in photovoltaic cells instead of conductors? | Actually, not only in PV cells, but in almost all electronical devices. How come? | askscience | http://www.reddit.com/r/askscience/comments/1warkl/why_are_semiconductors_used_in_photovoltaic_cells/ | {
"a_id": [
"cf08qii"
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"text": [
"There are two energy bands you need to worry about, the valence band and, at a higher energy, the conduction band.\n\nSee [here](_URL_0_). Semi-conductors are useful because the band gap is non-zero (the valence and conduction bands do not overla... | [] | [] | [
[
"http://hyperphysics.phy-astr.gsu.edu/hbase/solids/imgsol/band2.gif"
]
] | |
3cb6bn | When did the age of "Celebrity" start? Who were the first household names among artists, entertainers, adventures etc? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3cb6bn/when_did_the_age_of_celebrity_start_who_were_the/ | {
"a_id": [
"csur132"
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"score": [
2
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"text": [
"It has been said that a \"celebrity\" is someone who is famous for being famous. Their actually doing anything is superfluous. Nowadays they wind up authors, actors, & c because they were celebrities first.\n\nIn that case one of the earliest an... | [] | [] | [
[]
] | ||
5jp9s7 | why paper is generally white? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5jp9s7/eli5_why_paper_is_generally_white/ | {
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"text": [
"Paper is bleached during the manufacturing process because colors stand out better against a white background. ",
"That very much depends on *what* kind of paper you're talking about. \n\nPaper use... | [] | [] | [
[],
[],
[
"http://www.paperonweb.com/A1024.htm",
"paperonweb.com"
]
] | ||
1mune0 | why do a majority of white people not like being pale? | As a person of color, this always confused me. I love all skin tones so it baffles me that majority (not all, obviously) of white people are so unhappy/self-depracating about pale skin.
I feel like many black and latin cultures teach you to love your skin tone and embrace it, but so many of my white friends go tanning... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1mune0/eli5_why_do_a_majority_of_white_people_not_like/ | {
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"score": [
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"text": [
"It's definitely regional. Probably just a lot of 'grass is greener...' given that there are ... | [] | [] | [
[],
[],
[],
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1ton93 | why water goes down so smoothly when you chug it and alcohol does not? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1ton93/eli5_why_water_goes_down_so_smoothly_when_you/ | {
"a_id": [
"cea0gfp"
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"text": [
"Alcohol excites [the squamous cells lining the esophagus](_URL_1_). It is actually a poison for cells. From here on I speculate: Possibly nerves report to the brain and that just won't give you an easy time swallowing poison...\n\nAs an aside, al... | [] | [] | [
[
"http://peer.tamu.edu/curriculum_modules/Cell_Biology/module_2/hazards.htm",
"http://en.wikipedia.org/wiki/Squamous_epithelial_cell",
"http://alcalc.oxfordjournals.org/content/38/6/537.full",
"http://upload.wikimedia.org/wikipedia/commons/a/a9/Alcohol_consumption_per_capita_world_map.PNG",
"ht... | ||
2yizpc | cabin pressure in commercial airplanes. | If you buy a bag of chips at the airport and take it on the plane with you, the bag will expand to the point of almost popping as you climb to 35,000 feet.
I always thought that airplane cabins were "pressurized" such that if you open the door to the outside world while cruising the cabin would lose pressure and it w... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2yizpc/eli5_cabin_pressure_in_commercial_airplanes/ | {
"a_id": [
"cp9z2co"
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"score": [
2
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"text": [
"Airplane cabins are pressurized, just not to a full atmosphere of pressure. Most high-altitude planes cabins are pressurized to the equivalent of 7000-8000 foot altitudes."
]
} | [] | [] | [
[]
] | |
28nfxt | why are newer starwars considered so bad compared to the originals? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28nfxt/eli5_why_are_newer_starwars_considered_so_bad/ | {
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],
[
"https://www.youtube.com/watch?v=VgICnbC2-_Y&feature=youtu.be&src_vid=JAbug3AhYmw&feature=iv&anno... | ||
6ujfmv | how does unsupervised machine learning work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6ujfmv/eli5_how_does_unsupervised_machine_learning_work/ | {
"a_id": [
"dlt4ovb"
],
"score": [
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"text": [
"[This video explains it well](_URL_0_)\n\nThe approach isn't far from brute forcing the pin for the parental lock your TV. Given a desired goal, you start mashing controls until you get what you want. First you try 1111, then 1112, etc until it ... | [] | [] | [
[
"https://www.youtube.com/watch?v=qv6UVOQ0F44"
]
] | ||
3b6kcm | how can older movies be presented on the blu-ray format without downgrading the quality of the film? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3b6kcm/eli5_how_can_older_movies_be_presented_on_the/ | {
"a_id": [
"csjag3y",
"csjalpk",
"csjbjre"
],
"score": [
19,
3,
3
],
"text": [
"Movies shot on film still have a higher resolution than we can match with digital. A new high definition transfer of an older film-based movie can easily be as high resolution as Blu-Ray can handle.",
... | [] | [] | [
[],
[],
[]
] | ||
9e3w6o | why does our brain enjoy solving puzzles? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9e3w6o/eli5_why_does_our_brain_enjoy_solving_puzzles/ | {
"a_id": [
"e5lwlxa",
"e5lxbio",
"e5m04qx"
],
"score": [
14,
6,
4
],
"text": [
"Your brain is just like your muscles. You feel stronger when you lift weights, and solving puzzles are like lifting weights for your brain, and your brain likes that",
"Humans, like most animals, a... | [] | [] | [
[],
[],
[]
] | ||
5cmjx2 | why do so many people seem to fall for scam artists? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5cmjx2/eli5_why_do_so_many_people_seem_to_fall_for_scam/ | {
"a_id": [
"d9xo2lx",
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"d9xu67z",
"d9xxz1z",
"d9xza81"
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"score": [
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5,
19,
2,
2
],
"text": [
"A lot of scams prey on ignorance and familiarity \n\nThink about the typical \"You've won x amount of money\" emails, you may not fall for them because you ... | [] | [] | [
[],
[],
[],
[
"http://www.businessinsider.com.au/why-nigerian-scam-emails-are-obvious-2014-5?r=US&IR=T"
],
[]
] | ||
269kqe | Why did the Border States stay with the Union? | Several of the northern Slave States seceded once Lincoln called for troops following Sumter. Why did the other ones stay? And more specifically, even after various bills were introduced in Congress during the Civil War to end slavery, why did they stay with the Union? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/269kqe/why_did_the_border_states_stay_with_the_union/ | {
"a_id": [
"chp0i4p",
"chp4lm6"
],
"score": [
2,
3
],
"text": [
"I will only speak for Maryland. Maryland was fairly well split between northern and southern sympathies, With Washington sandwiched between Maryland and Virginia, Lincoln really gave Maryland no choice. He incarcerated some... | [] | [] | [
[],
[]
] | |
6v2bi2 | I'm the fifth son to a western noble in medieval times, what are my prospects? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6v2bi2/im_the_fifth_son_to_a_western_noble_in_medieval/ | {
"a_id": [
"dlxhsjh"
],
"score": [
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],
"text": [
"Well, it depends mostly of the place you come from, the gender of your siblings and their situation right now. I will show you the example I know, which is the Castillian System, which, as far as I know, comes from the Wisigothic tradition and ha... | [] | [] | [
[]
] | ||
5p1f6g | how does a restaurant with a large menu have the right food for a night of service when they don't know what people will order? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5p1f6g/eli5_how_does_a_restaurant_with_a_large_menu_have/ | {
"a_id": [
"dcnnybw"
],
"score": [
2
],
"text": [
"They keep stocks slightly higher than the standard amount sold of an item on a given night. If they run out they tell the customer that something is out of stock and no longer available. "
]
} | [] | [] | [
[]
] | ||
29zfku | how wireless technology was first discovered | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/29zfku/eli5how_wireless_technology_was_first_discovered/ | {
"a_id": [
"cipzvt5",
"ciq0hm5"
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"score": [
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4
],
"text": [
"Well, it's not like one day someone discovered a bluetooth headset or anything. It's just been a long process, step-by-step, understanding how electromagnetic radiation works, how we can control it, and what sorts of uses it... | [] | [] | [
[],
[]
] | ||
aoxc2g | How effective was strategic bombing in World War Two in affecting production and morale? | On one hand, it seems as though the strategic bombing campaigns would help bring down Germany and Japan by wearing down their war industries and thus making the fighting at the front go easier. On the other hand, neither Germany or Japan surrendered due to conventional strategic bombing, requiring a land invasion and t... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/aoxc2g/how_effective_was_strategic_bombing_in_world_war/ | {
"a_id": [
"eg54ug5"
],
"score": [
4
],
"text": [
"The impact of strategic bombing in the Second World War was exhaustively studied in the \"United States Strategic Bombing Survey\". Not only has the subject has been studied, indeed the writing of the Strategic Bombing Survey itself has been ext... | [] | [] | [
[
"http://cgsc.contentdm.oclc.org/utils/getdownloaditem/collection/p4013coll8/id/4323/filename/4333.pdf/mapsto/pdf/type/singleitem",
"https://www.jstor.org/stable/1902984?Search=yes&resultItemClick=true&searchText=strategic&searchText=bombing&searchText=survey&searchUri=%2Faction%2FdoBas... | |
2nud7i | why is the us more friendlier with the saudis over the russians? (well until crimea anyways... both are major oil producers but the russians are closer in culture and heritage) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2nud7i/eli5why_is_the_us_more_friendlier_with_the_saudis/ | {
"a_id": [
"cmgy0xq",
"cmgye88",
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"score": [
6,
3,
3
],
"text": [
"First, alliances are not about culture and heritage, but about interests. After all, North and South Korea had *identical* culture and heritage, but were—and, of course, still are—run by people with ver... | [] | [] | [
[],
[],
[]
] | ||
afokms | why can you only use emergency exits during an emergency? | This seems like a waste of a perfectly usable door. I understand that they trigger an alarm to indicate that there is a need to evacuate an area, but couldn't they just have a button next to the door to sound an alarm? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/afokms/eli5_why_can_you_only_use_emergency_exits_during/ | {
"a_id": [
"ee0a5eh",
"ee0rjy9",
"ee13efp",
"ee2aqrp"
],
"score": [
16,
3,
4,
2
],
"text": [
"Such doors are usually located in areas with poor security. Businesses don't want them used for shoplifting. Theaters don't want them used for sneaking in.",
"The alarms are n... | [] | [] | [
[],
[],
[],
[]
] | |
2udgwm | Do all wavelengths of the electromagnetic spectrum travel at the same speed? | I keep hearing speed of 'light'. This made me wonder if it is visible light that is being referred to or just any type of electromagnetic radiation? | askscience | http://www.reddit.com/r/askscience/comments/2udgwm/do_all_wavelengths_of_the_electromagnetic/ | {
"a_id": [
"co7fe9c",
"co7fl0q",
"co7gkcr"
],
"score": [
5,
5,
29
],
"text": [
"Yes, all electromagnetic radiation travels at the same fixed speed *c* through a vacuum.\n",
"Only in vacuum they would have the same speed which is the speed of light. But speed changes depending ... | [] | [] | [
[],
[],
[]
] | |
wniwi | Benefits of using your non-dominant hand ? | Other than making your non-dominant hand/side stronger and more dexterous, is there any benefit to your brain or body in general ?
As an adult, what if you try to use your non-dominant hand for daily tasks ?
For children, would it be better to let them learn some sports (for example baseball or tennis) using their ... | askscience | http://www.reddit.com/r/askscience/comments/wniwi/benefits_of_using_your_nondominant_hand/ | {
"a_id": [
"c5ewbzi",
"c5ezxzx",
"c5f3y2g",
"c5f5tt5"
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"score": [
6,
48,
5,
2
],
"text": [
"I use my non-dominant hand for my mouse during work and my dominant one at home. As a result, my hands are less tired throughout the day. Does this count as a benefit?\n\nedit: ... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Ego_depletion",
"http://en.wikipedia.org/wiki/Self-control#As_a_limited_resource"
],
[]
] | |
2rzfil | What Could a Pound Sterling Actually Buy in the Late Middle Ages/Early Renaissance? | I've searched far and wide for texts on Goodreads and Google that give information in regards to medieval economics, but the most useful information I've ever been able to come up with has comes from books that don't even focus on economics at all.
For example, from various books on the history of the Hundred Years Wa... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2rzfil/what_could_a_pound_sterling_actually_buy_in_the/ | {
"a_id": [
"cnkym9f",
"cnl7eyd"
],
"score": [
6,
9
],
"text": [
"The term that you're looking for is probably purchasing power - what was the purchasing power of the pound sterling at the time?\n\n[This site](_URL_0_) has a list of prices and wages for various time periods in the 14th and... | [] | [] | [
[
"http://web.archive.org/web/20070110161913/http://www.fordham.edu/halsall/source/medievalprices.html"
],
[
"http://www.etymonline.com/index.php?term=sterling",
"http://www.reddit.com/r/AskHistorians/comments/29f45q/what_was_the_value_of_a_knight_and_other_warriors/cikn3vh",
"http://stats.bls.g... | |
u76hn | austrian school and the austrian business cycle theory | I am subscribed to the /r/economics subreddit and they always talk about the Austrian School so a wiki read didn't reveal anything about the core concept of the Austrian and why it is criticized by US economists. So can you explain it like I am five? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/u76hn/eli5_austrian_school_and_the_austrian_business/ | {
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"score": [
27,
6,
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3,
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"text": [
"It is rather hard to explain an entire school of economics at a 5 year-old level, especially without writing a short book, but I'll tr... | [] | [] | [
[],
[],
[
"http://www.youtube.com/watch?v=d0nERTFo-Sk"
],
[],
[],
[]
] | |
5uxsok | How do we know a black hole has a singularity at its center? | So I'm wondering how do we know that a black hole has a singularity at its center, as opposed to a small body that's just smaller than its Swartzchild radius?
Like, what if beyond the event horizon there's just a small moon being kept up by some form of degeneracy pressure we don't yet know about? | askscience | https://www.reddit.com/r/askscience/comments/5uxsok/how_do_we_know_a_black_hole_has_a_singularity_at/ | {
"a_id": [
"ddz5syt"
],
"score": [
4
],
"text": [
"Well, technically we don't. Since it is by definition impossible to observe what's inside the event horizon, you can't gather any evidence for what's inside. And because we have never observed an actual black hole in nature either, we don't even ... | [] | [] | [
[]
] | |
2dss7i | Why did Constantine the Great allow the Christian church to have a power heirarchy that diverged from that of the state? | I'm listening to the really excellent *The History of Rome* podcast by Mike Duncan. When he discussed the endorsement and eventual adoption of Christianity by Constantine, he outlines a number of factors that make Constantine's endorsement of Christianity make sense. For instance, it was politically expedent to align h... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2dss7i/why_did_constantine_the_great_allow_the_christian/ | {
"a_id": [
"cjth110"
],
"score": [
2
],
"text": [
"I think there are good reasons for Constantine to act the way he did and not the way you are proposing. First of all, the Christian church of the early 4th century was very different from that of medieval times or even the 5th and 6th century. It... | [] | [] | [
[]
] | |
83d5o9 | why do non-rechargable/single use batteries last longer than rechargable ones? | I recently bought a pack of rechargable AA batteries and promptly returned them when I read they had to be replaced and recharged every couple of hours in like a TV remote. Why do non-rechargable batteries last for months? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/83d5o9/eli5_why_do_nonrechargablesingle_use_batteries/ | {
"a_id": [
"dvh2b0d",
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"score": [
8,
3,
2
],
"text": [
"They don't need to be recharged every couple of hours. They need to be recharged after a couple of hours of **use**. \n\nIn this instance, that would mean pushing a button on your TV remote and holdin... | [] | [] | [
[],
[],
[]
] | |
10yek2 | Why are U.S. military bases in Germany located only in southern Germany? | Here's a map:
_URL_0_
Was there a historical or strategic purpose for this? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/10yek2/why_are_us_military_bases_in_germany_located_only/ | {
"a_id": [
"c6hrgoa"
],
"score": [
5
],
"text": [
"The Fulda Gap wasn't it? Doing a quick google search, and this is said about it on [Wikipedia](_URL_0_):\n\nThe Fulda Gap is an area between the former East German border and Frankfurt am Main, that contains two corridors of lowlands that tanks m... | [] | [
"http://en.wikipedia.org/wiki/List_of_United_States_Army_installations_in_Germany"
] | [
[
"http://en.wikipedia.org/wiki/Fulda_Gap"
]
] | |
3vg59n | Why were the Abrahamic religions so successful? | The majority of Earth's population follows one of the Abrahamic religions. Starting as the value system / religious ideas of the Jewish people in a remote corner of the world, Abrahamic religion has converted the planet's peoples almost like a tidal wave. Was its success rooted in specific political events *(e.g. adopt... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3vg59n/why_were_the_abrahamic_religions_so_successful/ | {
"a_id": [
"cxnau0x",
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"score": [
86,
6
],
"text": [
"I can lead this off with Judaism. The thing to keep in mind is that what we now call the Jewish religion was originally what we could call \"Yahwehism\". There are two major distinctions between Yahwehism and Judaism that a... | [] | [] | [
[],
[
"https://uniteyouthdublin.files.wordpress.com/2015/01/the-sources-of-social-power-michael-mann.pdf"
]
] | |
5cnjn0 | The Chinese Xia Dynasty - Did it Really Exist? | I've been doing research into the Chinese societies early years, and while there are legends of the Chinese Xia Dynasty, there for a long time hasn't been much of any archaeological evidence. When I've been searching online for info about it I mostly get dubious Chinese sources that I can't really take seriously. I'm w... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5cnjn0/the_chinese_xia_dynasty_did_it_really_exist/ | {
"a_id": [
"d9yfpa7"
],
"score": [
7
],
"text": [
"The Xia dynasty is usually, in Chinese archaeology, associated with the Erlitou culture of the Early Bronze Age found around the Yellow River. The Erlitou culture as discovered by archaeologists was an urban and stratified society marked by its ... | [] | [] | [
[]
] | |
6b3kxz | when looking at used car ads, i see many claims of "highway miles." is prolonged use at high rpms better for the car than short stop-and-go use? why? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6b3kxz/eli5_when_looking_at_used_car_ads_i_see_many/ | {
"a_id": [
"dhjhaic"
],
"score": [
3
],
"text": [
"Engines are designed to work optimally at running temperature and a certain RPM. If you run it on lower speed and lower temperatures it will not get efficient combustion and start making sot and tar instead of clean exhaust products. You might no... | [] | [] | [
[]
] | ||
dfewvw | why does solid food taste good when you're chewing it, but is disgusting when you blend it into a smoothie? | Say you're eating a hamburger, it tastes good. Now blend in into a smoothie, and it's disgusting! Why? It's still the same ingredients. Does texture affect the way we taste? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dfewvw/eli5_why_does_solid_food_taste_good_when_youre/ | {
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"score": [
17,
5,
2,
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],
"text": [
"There's whole field of science dedicated to this.\nThe simple answer is, yes, texture does affect taste.",
"As someone who worked in a nursing facility kitchen and had to blen... | [] | [] | [
[],
[],
[],
[]
] | |
tfvud | Molecules | I was talking about microwaves with my dad and liquids and whatnot, if the molecules in a liquid have to be moving to be liquid form where do they get their kinetic energy from? | askscience | http://www.reddit.com/r/askscience/comments/tfvud/molecules/ | {
"a_id": [
"c4m9ox1",
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"score": [
6,
3
],
"text": [
"The jiggling of those molecules comes from heat.",
"Great question! As with many physics and chemistry problems it's always good to start with an imaginary setup and build up from there. \n\nImagine I take one atom and ... | [] | [] | [
[],
[]
] | |
ih7uw | Why are hard, wet surfaces slippery but wet clothing is more difficult to remove than dry clothing? | What causes these opposite friction effects from the same substance? | askscience | http://www.reddit.com/r/askscience/comments/ih7uw/why_are_hard_wet_surfaces_slippery_but_wet/ | {
"a_id": [
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"score": [
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7,
3,
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],
"text": [
"Water is interesting because it has both adhesive and cohesive properties. I believe the water in/on your shirt is sticking to the water on you. This may account for part of the ... | [] | [] | [
[],
[],
[],
[]
] | |
1we9c0 | why is it is it easier to be nice to strangers and acquaintances than to people we actually care about? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1we9c0/eli5_why_is_it_is_it_easier_to_be_nice_to/ | {
"a_id": [
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6,
2,
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14,
2
],
"text": [
"You take the close people for granted. ",
"You'd have to define what you mean by being nice and what you mean by people we care about.\n\n\nChances are p... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
3rdms4 | Why are there so many "Smiths" out there? Were there just a shitload of blacksmiths in Medieval times or did the blacksmiths just produce a prodigious amount of progeny? OR Why is Smith such a common surname? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3rdms4/why_are_there_so_many_smiths_out_there_were_there/ | {
"a_id": [
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"text": [
"There are a lot of kinds of smiths. There are silversmiths, blacksmiths, coppersmiths (AKA greensmith), goldsmiths, and the names relating to the items being made (shoesmi... | [] | [] | [
[
"http://books.google.com/?id=00cBAAAAQAAJ"
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[
"http://www.reddit.com/r/AskHistorians/wiki/rules",
"http://www.reddit.com/message/compose?to=%2Fr%2FAskHistorians&subject=Question%20Regarding%20Rules",
"http://www.reddit.com/r/AskHistorians/submit?selftext=true&title="
],
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... | ||
yoj9h | Which movie about a historical event got it most right? Which one blew it 100%? | Edit: Thanks to all of you who contributed to this thread. I'm not someone who will ever pick up a history textbook to read, but I will watch movies, and this is a great guide to figuring out which movies I'm learning real history from and which ones might just be great entertainment set in another time and place. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/yoj9h/which_movie_about_a_historical_event_got_it_most/ | {
"a_id": [
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"c5xgczf",
"c5xgf1d",
"c5xghag",
"c5xgigv",
"c5xgl9w",
"c5xgtps",
"c... | [] | [] | [
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[
"http://www.imdb.com/title/tt0060665/",
"http://www.imdb.com/title/tt0110963/",
"http://www.imdb.com/title/tt0082096/",
"http://www.imdb.com/title/tt0058777/",
"http://www.imdb.com/title/tt0097499/",
"http://www.imdb.com/title/tt1124052/",
"http://www.imdb.com/t... | |
svmrk | why congress can get away with repackaging unpopular bills (sopa - > cispa, etc.) over and over until they finally get passed? | Didn't we already make it clear that this is a Bad Thing? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/svmrk/eli5_why_congress_can_get_away_with_repackaging/ | {
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"score": [
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... | [] | [] | [
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346gbg | how do electrical systems on a jet operate? | Is it like a car, where an alternator charges the battery using engine power or is there some other way a jet harnesses electricity? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/346gbg/eli5_how_do_electrical_systems_on_a_jet_operate/ | {
"a_id": [
"cqronr9"
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"score": [
2
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"text": [
"There are alternators in each engine casing. They provide electricity to the main batteries and the auxiliary systems batteries that power the on-board electrical systems."
]
} | [] | [] | [
[]
] | |
7ova2z | How would i immigrate to the American Colonies from England in the year 1700? | Let’s give three scenarios.
1. I’m a farmer who wishes to start a tobacco farm in the new world.
2. I am a citizen of London looking to start a new life.
3. I’m a noble who is looking to make a vacation home across the sea.
How would each of these people go about immigrating. Would they take a lot of stuff with them? ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7ova2z/how_would_i_immigrate_to_the_american_colonies/ | {
"a_id": [
"dscuq39"
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"score": [
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"text": [
"If the farmer or Londoner is down-on-his-luck, he would probably go as an indentured servant (by this time slaves were beginning to be preferred to indentured servants, but indentured servitude was quite common). That means he would get his passa... | [] | [] | [
[]
] | |
1y6d53 | Are there any upsides to European colonialism? | In my Intro to Caribbean Studies class my professor talks about how detrimental European colonialism was and how it is comparable to fascism and Hitler. I think that it was a little dramatic of a statement but I wanted to see what you guys thought. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1y6d53/are_there_any_upsides_to_european_colonialism/ | {
"a_id": [
"cfiacdc"
],
"score": [
6
],
"text": [
"Part of the problem in answering this question is that it is culturally loaded. For example, if you think the expansion of European cultural forms, technology, and people is good then you could say it was an upside. If you think the destruction, ... | [] | [] | [
[
"http://books.google.com/books/about/Seven_Myths_of_the_Spanish_Conquest.html?id=2hMp9z_OsUMC"
]
] | |
10an2t | music equalizers. | How do they effect the music? What do they change? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/10an2t/eli5_music_equalizers/ | {
"a_id": [
"c6bta7e"
],
"score": [
2
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"text": [
"An EQ or equalizer shapes the tone of the sound: the low end/frequencies, the mid frequencies, and the high end frequencies.\n\nSimple EQ's have a predetermined \"crossover\" that separates the lows, mids and highs. The lows will usually range fr... | [] | [] | [
[]
] | |
181or5 | game theory in sociology/psychology | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/181or5/eli5_game_theory_in_sociologypsychology/ | {
"a_id": [
"c8awj6a"
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"score": [
2
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"text": [
"I agree with daafuzz\n\n\nI will add that these game\nTheory tests works well in control groups. Even better when is explained to the group that they can gain more with cooperative attitudes. \n\ngame theory has a fee things to say about the cla... | [] | [] | [
[]
] | ||
2yiskn | When you lose blood or give blood, where does the space left by the blood go? | For example, say you have a container that's full of 6 pints of water, if you take a pint out, there's unused space in there.
I've heard that air in your circulatory system is dangerous, so I doubt that's what replaces it.
Do the veins simply shrink? | askscience | http://www.reddit.com/r/askscience/comments/2yiskn/when_you_lose_blood_or_give_blood_where_does_the/ | {
"a_id": [
"cpauz2k"
],
"score": [
5
],
"text": [
"There are two sides to your circulatory system: the arterial side and the venous side. They are separated at one end by the heart and at the other by the capillary bed.\n\nThe arteries are pressure-bearing vessels with some, but limited, elastici... | [] | [] | [
[]
] | |
21ilid | Is the speed of light exactly 299,792,458 m/s? | If so, why doesn't it have decimals? How does it round off without decimals? | askscience | http://www.reddit.com/r/askscience/comments/21ilid/is_the_speed_of_light_exactly_299792458_ms/ | {
"a_id": [
"cgdejet",
"cgdj1qg"
],
"score": [
221,
17
],
"text": [
"It is, because the meter is defined to the distance light travels in a certain time. The second is defined independently.\n\nBefore it was defined this way, there was an uncertainty of about 10 m/s (forget the exact value... | [] | [] | [
[],
[]
] | |
2odif2 | why do the launches of space shuttles look like they're traveling so slow? | When they launch it looks like they're going really slow, when in reality I know they are going hundreds if not thousands of miles an hour. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2odif2/eli5why_do_the_launches_of_space_shuttles_look/ | {
"a_id": [
"cmm370u",
"cmm3765",
"cmm3uot"
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"score": [
2,
3,
2
],
"text": [
"When they're close to the ground, they're still accelerating, so they're not that fast.\n\nBy the time they've accelerated to very high speeds, they're far away, so they don't seem to move that quickly.... | [] | [] | [
[],
[],
[]
] | |
2v0ct7 | why do some wires, such as phone chargers, eventually become fussy and work only when placed into a very specific position? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2v0ct7/eli5_why_do_some_wires_such_as_phone_chargers/ | {
"a_id": [
"codarby"
],
"score": [
3
],
"text": [
"Cables like that are made up of a bunch of very thin wires inside. If you abuse your cables, such as by coiling them up very tightly, you can break the internal wires or the connections between the wire & the connector.\n\nTreat your cables we... | [] | [] | [
[]
] |
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