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13tzuo
what exactly happens when i text/call someone with my cell phone?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/13tzuo/eli5_what_exactly_happens_when_i_textcall_someone/
{ "a_id": [ "c7762n2" ], "score": [ 3 ], "text": [ "When you make a **call**, your mobile transmits a signal to the nearest cell tower. The tower receives the signal and sends it to a switch board via cables. The switchboard either sends the signal to another board through land lines, or line-of-s...
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[ [] ]
2iba0o
How and why did [heavy] metal music come to so heavily adopt a dark/gothic/"satanic" aesthetic?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2iba0o/how_and_why_did_heavy_metal_music_come_to_so/
{ "a_id": [ "cl0k08d", "cl10dkr", "cl1qrv0" ], "score": [ 4, 2, 2 ], "text": [ "This is not the place to ask this question - I doubt there are many certified music historians here. You'd do better off at /r/metal or /r/truemetal or some place like that. [Here's a good FAQ](_URL_0_)...
[]
[]
[ [ "http://www.deathmetal.org/faq/" ], [], [] ]
4nt4bm
Why was Egypt such a lucrative province for the Romans and the Ottomans?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/4nt4bm/why_was_egypt_such_a_lucrative_province_for_the/
{ "a_id": [ "d46s0et", "d474n2e" ], "score": [ 19, 5 ], "text": [ "Well - there are three main ways to extract income from almost any part of the world; trade, taxation, and production.\n\n1) Trade. Egypt was an incredibly nice region for trade because it was an easy route for goods like s...
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[ [], [] ]
18w7bc
What did an "attractive" person look like in your particular time period?
I've always been under the impression that what we consider attractive now is probably wildly different from say, the ancient Romans or medieval French. So, what made someone attractive during your time period, and in addition, how important was physical beauty?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/18w7bc/what_did_an_attractive_person_look_like_in_your/
{ "a_id": [ "c8iks92", "c8il32i", "c8inwvd", "c8ip2yg", "c8iqevc", "c8isy7m", "c8isztl", "c8ixqe3", "c8ixs51", "c8ixspk", "c8j3e9p", "c8j59kp" ], "score": [ 163, 141, 90, 38, 51, 18, 33, 3, 3, 2, 8, 2 ], "text": [ ...
[]
[]
[ [], [], [], [ "http://farm2.static.flickr.com/1062/695789666_26d705b23f.jpg" ], [ "http://anthrocivitas.net/forum/showthread.php?p=180420" ], [], [ "http://i.imgur.com/hvhPqSi.png", "http://i.imgur.com/mrjg0jj.jpg", "http://i.imgur.com/T9VJMJI.jpg", "http://i.imgur.com/9utAWS...
14lzkc
[el5] oil prices versus gas prices
This is how I understand it so far... There are 42 gallons in a barrel of oil. If a barrel s $100, divide that by 42 and add like 12¢ for refining. But this never equals what I pay at the pump. Please help me understand this.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/14lzkc/el5_oil_prices_versus_gas_prices/
{ "a_id": [ "c7ea7g4", "c7eacy2", "c7ebevq" ], "score": [ 4, 6, 2 ], "text": [ "Location from refineries matters as well. The number of refineries in the U.S. has gone down over the last few decades, resulting in more varied costs due to transportation.", "Add transportation. ...
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[ [], [], [] ]
slcvz
Why do so many animals on the earth share the same basic internal/external organs?
Stomach, liver, intestines, kidneys, lungs, eyes, ears, mouth, teeth, ect.... Why do so many animals on earth share the basic "build"? Are those organs really the most efficient way to function?
askscience
http://www.reddit.com/r/askscience/comments/slcvz/why_do_so_many_animals_on_the_earth_share_the/
{ "a_id": [ "c4ex973", "c4extfs", "c4ez0h9" ], "score": [ 48, 42, 3 ], "text": [ "Because every animal on Earth shares a common ancestor if you go back far enough. ", "This is due to the concept of having a common ancestor. If you look at something called a phylogenetic tree, y...
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[ [], [], [] ]
3hos3s
if you are driving a car 60 mph off a cliff, will the hit the ground at the same time as someone who drives 20 mph off of the cliff at the exact same time?
Would the force of gravity cause both cars to reach the ground at the same time?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3hos3s/eli5_if_you_are_driving_a_car_60_mph_off_a_cliff/
{ "a_id": [ "cu987hm", "cu98ffw", "cu98fgx" ], "score": [ 9, 2, 2 ], "text": [ "Unless air resistance becomes a factor, yes. The car's horizontal and vertical movement can be calculated separately. The faster car will travel further overall, but they'll both get the same amount of ...
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[ [], [], [] ]
1lyg3x
why can the us government drone strike countries and people say nothing about it but striking syria is such a big deal?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1lyg3x/eli5why_can_the_us_government_drone_strike/
{ "a_id": [ "cc3zpoq" ], "score": [ 6 ], "text": [ "We have permission to use drones both in Pakistan and Yemen (where the majority of drone strikes have occurred) as we help them root out some of the radical elements inside their country. I believe our mission in Pakistan is winding down, so ther...
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[ [] ]
741h1w
When books first became widely available, were they considered addictive?
I often hear people refer to cell phones, social media, MMORPGs, etc as "addictive." Were books ever criticized as "addictive," or whatever similar term would have been applied in the post-Gutenberg era? Any other early technologies?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/741h1w/when_books_first_became_widely_available_were/
{ "a_id": [ "dnvtvfs", "dnvtyyv", "dnvu9ly" ], "score": [ 51, 25, 14 ], "text": [ "In \"Corrupted the Morals of Many a Promising Youth\"\nIn the 1790 book Memoirs of the Bloomsgrove Family, Reverend Enos Hitchcock wrote, \n\nThe free access which many young people have to romances,...
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[ [], [], [] ]
2kqrom
what would be a military/warfare analogy to our immune system and its response to pathogens/antigens?
Edit: It would be better if there are comparisons of different cells. For example - T helper cells cells as commanders or signallers
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2kqrom/eli5_what_would_be_a_militarywarfare_analogy_to/
{ "a_id": [ "clnuctu", "clnxnzx" ], "score": [ 24, 4 ], "text": [ "[George Carlin](_URL_0_) said it best, I think...\n\n > Besides, what do you think you have an immune system for? It’s for killing germs. But it needs practice. It needs germs to practice on. So if you kill all the germs a...
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[ [ "http://m.youtube.com/watch?v=X29lF43mUlo" ], [] ]
adqp9e
are machines at bettings shops truly rigged, or are they the same as any other casino game?
So we all know how Casinos, make their money, have have a house edge, a slightly hire chance that the house will win. But a virtual roulette machine at a betting shop, are those rigged to never land on your bet depending on how much you bet? Or are they designed just like IRL roulette tables, where yes you can win, yo...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/adqp9e/eli5_are_machines_at_bettings_shops_truly_rigged/
{ "a_id": [ "edjgax0", "edjgfkf", "edjl5q7" ], "score": [ 3, 2, 3 ], "text": [ "It's in their favor, they will make more money than it pays out. So even if someone wins 1000 bucks, they just made like 10,000 bucks.", "Where are you at in the world?\n\nI guess I don’t know what ...
[]
[]
[ [], [], [] ]
1y9lhr
why was the t-mobile and sprint acquisition not okay and why is the comcast and time warner acquisition okay?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1y9lhr/why_was_the_tmobile_and_sprint_acquisition_not/
{ "a_id": [ "cfiiyhs", "cfij4uj", "cfij6aj" ], "score": [ 2, 2, 6 ], "text": [ "it hasn't yet been ruled whether or not the Comcast/Time Warner deal is ok or not.", "First of all, Comcast/Time Warner may not be OK. I believe the biggest difference is that there is little overla...
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[ [], [], [] ]
cop2ae
Do apes make music?
Do other apes use their voice or primitive percussion instruments to make music or is music unique to humans? And if so, when was music most likely first created?
askscience
https://www.reddit.com/r/askscience/comments/cop2ae/do_apes_make_music/
{ "a_id": [ "ewmjx46" ], "score": [ 9 ], "text": [ "Hey, great question! The answer is a bit tricky because it depends one how you define music. Chimps have been recorded making sounds by hitting branches against tree trunks, [but because their \"drumming\" isn't usually on beat/rhythmic most scie...
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[]
[ [ "https://neurosciencenews.com/music-human-evolution-6937/", "https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0000073", "http://pdfs.semanticscholar.org/aa07/e7095dab2d66703c57e054fcc1fa00d6f5f9.pdf", "https://books.google.ca/books?hl=en&lr=&id=vYQEakqM4I0C&oi=fnd&...
4ap5z1
Mississippi didn't ratify the 13th Amendment (abolishing slavery) until 1995. Why did it take so long?
Going through the "On this day" area of Wikipedia, I saw this. What's the story behind taking over 100 years to ratify the 13th amendment? Kentucky didn't do it until 1976. Edit: I realize unanimity is not a requirement for an amendment to make it's way into the Constitution. But why did Mississippi and Kentucky tak...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/4ap5z1/mississippi_didnt_ratify_the_13th_amendment/
{ "a_id": [ "d12an6v" ], "score": [ 2 ], "text": [ "Article V of the Constitution governs the ratification of amendments. It requires three-quarters (not 100%) of the states to ratify an amendment in order for it to be adopted. So, by that measure, Kentucky and Mississippi were not necessary for t...
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[ [] ]
fl2qtg
Were pirates (especially notable ones like blackbeard) genuinely honorable people who wanted to form a republic separate from the crown or were they just in it for the money?
A lot of different media tells differing tales on this. Some (unsurprisingly the ones that have them as protagonists) portray them as proud revolutionaries who wanted to keep away from the crown. Others (the ones where they're the antagonists) portray them as selfish gold seekers who wanted nothing but to expand their ...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/fl2qtg/were_pirates_especially_notable_ones_like/
{ "a_id": [ "fkxzjxv" ], "score": [ 9 ], "text": [ "Marcus Rediker, who wrote some of the most interesting history books on the topic of modern piracy, gives a non too obvious but still quite noticeable marxist view on the matter. You'll find his website here: [_URL_2_](_URL_2_)\n\n# What's Marxis...
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[]
[ [ "https://www.britannica.com/topic/labeling-theory", "https://plato.stanford.edu/entries/marx/#4", "https://www.marcusrediker.com/" ] ]
32ydor
why are speaker cones conical?
I understand how speakers work. But why are they conical and not a flat planar diaphragm?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/32ydor/eli5_why_are_speaker_cones_conical/
{ "a_id": [ "cqfsyv2" ], "score": [ 2 ], "text": [ "A cone, like an arch, has more strength than a flat surface. A flat speaker has a tendency to deflect/bend when in use, causing distortions and potentially mechanical issues (coil crashing into the magnet from twisting, for instance). Using a con...
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[ [] ]
7jg1qs
Why isn't the atmosphere of Jupiter homogeneous?
After what I would assume is a few billion years of mixing, why are there still such defined patterns in Jupiter's atmosphere? Why are the layers not homogeneous? Does it have to do with updrafts mixing more dense layers?
askscience
https://www.reddit.com/r/askscience/comments/7jg1qs/why_isnt_the_atmosphere_of_jupiter_homogeneous/
{ "a_id": [ "dr6di6b" ], "score": [ 127 ], "text": [ "Heavier gases tend to get to deeper layers, what you would expect with no activity is an equilibrium that doesn't have a homogeneous mixture, but heavier gases in deeper layers.\n\nJupiter's interior is still hot, while the outside is cooled by...
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[ [] ]
3ikklr
From medical standpoint, how do we dispose of organs and blood that can't be reused for science?
From accidents to medical procedures to transfusions, organs, blood and appendages sometimes go to the wayside. Where do they go? Is it just some trash can? Or is there a special place to send the materials? I've always wanted to know, but didn't know who to ask.
askscience
https://www.reddit.com/r/askscience/comments/3ikklr/from_medical_standpoint_how_do_we_dispose_of/
{ "a_id": [ "cui582w", "cuicuwu" ], "score": [ 4, 2 ], "text": [ "Well I never dealt directly with organs, but my PhD involved a lot of blood. To dispose of the blood, we poured it out into a container full of 10% bleach. We let this sit overnight to fully kill/break down all the differe...
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[ [], [] ]
3qgp2d
how do companies such as beezid actually work? it sounds way to good to be true
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3qgp2d/eli5how_do_companies_such_as_beezid_actually_work/
{ "a_id": [ "cwezs0p", "cwezvde", "cwezxmt", "cwf05wt" ], "score": [ 6, 6, 2, 3 ], "text": [ "You pay like $1 per bid, but each bid is only a penny toward the value. \n\nIf you get in a bidding war with several people on an iPad that's worth $500 and it sells for $6.37, tha...
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[]
[ [], [], [], [] ]
6hnhes
how are rockets mounted for a stationary test on the ground to prevent the rocket from flying away?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6hnhes/eli5_how_are_rockets_mounted_for_a_stationary/
{ "a_id": [ "dizmz48" ], "score": [ 2 ], "text": [ "They use a mint condition just printed child support documents and place them between the ground and rocket. Non detachable and works like a charm infinitely.." ] }
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[ [] ]
m4fet
1st and 2nd order etc.. differential equations
Can someone please explain to me the difference between first and second and so on.... differential equations. I understand the basics of differential equations and that first order equations are simpler than second order equations but thats it. Thanks,
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/m4fet/1st_and_2nd_order_etc_differential_equations/
{ "a_id": [ "c2y0fbi", "c2y2er2", "c2y0fbi", "c2y2er2" ], "score": [ 2, 2, 2, 2 ], "text": [ "First order differential equations contain only first derivatives of the variable. Second order equations contain second derivatives (and potentially first derivatives as well). ...
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[ [], [], [], [] ]
6qbjj8
What were the principle medieval trade goods? If I was a merchant in medieval Europe, what would I most likely be trading in?
When looking around, most information on medieval trade tends to be about the big intercontinental trade across the silk road. But I'm wondering about the total trade, so including trade in between European countries and inside countries themselves. What was the mainstay of the normal, average merchant. Like, was it ...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/6qbjj8/what_were_the_principle_medieval_trade_goods_if_i/
{ "a_id": [ "dl073ag" ], "score": [ 2 ], "text": [ "One of the major changes that happened in western Europe during the central middle ages is the transition from a \"make your own\" economy where people in rural areas would essentially make their own essential goods for living, from leather goods...
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[ [] ]
qw1uo
What's the advantage of including 0 in the natural numbers?
I was discussing this with a friend, and the only reason I could come up with is that if you include 0, N becomes a ring with addition and multiplication as opposed to just a group under multiplication. I'm not a mathematician though, so even this might be completely wrong. Are there any other advantages to including 0...
askscience
http://www.reddit.com/r/askscience/comments/qw1uo/whats_the_advantage_of_including_0_in_the_natural/
{ "a_id": [ "c40wkq1", "c40x4ji", "c40ynb0", "c40yxmo", "c40zx52" ], "score": [ 16, 12, 2, 8, 2 ], "text": [ "The natural numbers still aren't a ring when you add 0, because there aren't additive inverses.\n\nIt's convenient to define 0 as part of the natural number...
[]
[]
[ [], [], [], [ "http://www.cs.utexas.edu/users/EWD/ewd08xx/EWD831.PDF" ], [ "http://en.wikipedia.org/wiki/Natural_number" ] ]
7jq8df
There was a notion during WWII that Rommel was the "good" German (not really ideologically a Nazi, possibly unaware of the Holocaust, died after a failed coup against Hitler). Is this still consistent with what we know of the man?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/7jq8df/there_was_a_notion_during_wwii_that_rommel_was/
{ "a_id": [ "dr8on2t", "dr8pj3b" ], "score": [ 9, 12 ], "text": [ "Doesn't cover your whole question, [this this previous answer](_URL_0_) of mine looks at the Rommel Myth and some of the impetus behind it. It doesn't talk so much about whether Rommel was in fact \"good\", but does look at...
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[ [ "https://www.reddit.com/r/AskHistorians/comments/5799li/did_the_rommel_myth_and_clean_wehrmacht_myth_and/d8qa5pn/" ], [] ]
fjs033
why were old school superhero cartoons so cheesy?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fjs033/eli5_why_were_old_school_superhero_cartoons_so/
{ "a_id": [ "fkoomek", "fkoqjm5", "fkotd5i" ], "score": [ 22, 8, 2 ], "text": [ "They were aimed at younger audiences, and at the time the idea was that little kids wouldn't want to watch something with complex and deep dialogue and writing. Superheroes were considered just for lit...
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[ [], [], [] ]
22qk3g
is there any way to find the curve of the earth using geometry, if so, how?
Just wondering if it is possible to find the angle in which the earth curves using Geometry. I would like to know how to ,as well, thanks.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/22qk3g/eli5is_there_any_way_to_find_the_curve_of_the/
{ "a_id": [ "cgpf15y" ], "score": [ 3 ], "text": [ "Early calculations used the sun and shadows to help calculate the curvature of the Earth. Eratosthenes did this calculation using the shadows cast by the sun to find the angle of the earth's curvature, then he used the distance between those poi...
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[ [] ]
7lw2f3
Can your fluid intelligence be increased/manipulated at all, or is it all genetic?
What I’m really asking is, if I can increase my crystallized intelligence as far as possible (i.e. gaining new knowledge and information) and store that information in combination with the other gathered information, would it affect my long-term fluid intelligence? Some people tell me that it would result in similar ...
askscience
https://www.reddit.com/r/askscience/comments/7lw2f3/can_your_fluid_intelligence_be/
{ "a_id": [ "drprew8" ], "score": [ 6 ], "text": [ "there is a good book called \"the neuroscience of intelligence by Richard j haier that gives an answer. The way he puts it is that your intelligence is determined 80%by the environment and teaching, and 20% by your genetics when you are a child. ...
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[ [] ]
2r9j3i
if whisky needed a little water, wouldn't the distilleries add it?
Many people say to add a drop of water to "open up" the whisky or some other phrase that doesn't seem to have any science behind it (I would just say "dilute"). Is there any scientific reason why adding water immediately before drinking would be any different than adding it before bottling?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2r9j3i/eli5_if_whisky_needed_a_little_water_wouldnt_the/
{ "a_id": [ "cndqc8h", "cndql49" ], "score": [ 8, 2 ], "text": [ "Some people like whiskey with a drop of water, some people do not. It is personal taste. However if the whiskey manufactures were to add in the drop of water then there would no longer be a choice. It is easy to add a drop o...
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[ [], [] ]
1oy4u8
Chicago World's Fair
I have recently finished reading The Devil in the White City and I'm looking for further information on the time period. Does anyone have any information / documents about the Colombian Exposition, Chicago in the 1890s, or just the late 19th century in general?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1oy4u8/chicago_worlds_fair/
{ "a_id": [ "ccwt98z", "ccwtrad", "ccww6ti" ], "score": [ 2, 2, 2 ], "text": [ "There's plenty of great stuff out there, but I'll just throw in a recommendation for Bill Cronon's [*Nature's Metropolis*](_URL_0_). A classic environmental history of Chicago -- what a book!", "Tak...
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[]
[ [ "http://books.wwnorton.com/books/978-0-393-30873-0/" ], [ "http://www.chicagohs.org/history/expo.html" ], [] ]
3169ah
how did every culture on the planet at some point in their ancient history invent the concept of teas?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3169ah/eli5_how_did_every_culture_on_the_planet_at_some/
{ "a_id": [ "cpypv0g", "cpypyag", "cpyrik2" ], "score": [ 4, 2, 3 ], "text": [ "Not every culture did. Some figured out that if you dip certain leaves in hot water, it tastes good, and some learned it from other cultures.\n\nThe concept of tea is relatively simple. It's not much of...
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[]
[ [], [], [ "http://en.wikipedia.org/wiki/History_of_tea", "http://www.teavana.com/tea-info/history-of-tea", "http://en.wikipedia.org/wiki/Ancient_tea_route" ] ]
utb6r
How many of an average human's genes are mutations?
How many of our genes are not simply reshuffled from previous generations in whatever form was expressed in one of our parents? I suppose this would be something like average mutation rate per b.p. x average length b.p. length of genes x number of genes in genome, or is there something I'm missing?
askscience
http://www.reddit.com/r/askscience/comments/utb6r/how_many_of_an_average_humans_genes_are_mutations/
{ "a_id": [ "c4ydbd9", "c4yezwg" ], "score": [ 4, 6 ], "text": [ "[This paper](_URL_0_) cites the mutation rate at ~1.1e-8 per bp per generation. Beyond that, it gets muddled because you don't know how the mutations are distributed (eg clustered in a few genes or distributed across many),...
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[]
[ [ "http://www.sciencemag.org/content/328/5978/636.abstract" ], [] ]
2yb1qk
How does inductive charging charge my phone without scrambling the data in it?
If my phone's data is represented by electrons, won't the inductive charger push them around and stuff and wipe my data?
askscience
http://www.reddit.com/r/askscience/comments/2yb1qk/how_does_inductive_charging_charge_my_phone/
{ "a_id": [ "cp8oeqr" ], "score": [ 3 ], "text": [ "The data stored in a phone is not stored on magnetic media like a computers hard drive so the magnetic field doesn't have any affect on memory. Your phone uses flash memory which is not affected by the magnetic fields from an inductive charging m...
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[ [] ]
3uyh9u
developed nation, undeveloped nation, first world, third world: what information do these terms convey, and how do we use them correctly?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3uyh9u/eli5_developed_nation_undeveloped_nation_first/
{ "a_id": [ "cxisyo9" ], "score": [ 2 ], "text": [ "TECHNICALLY the first world are developed capitalist nations that were vaguely alligned with the US after ww2, basically anyone on the US side in the cold war, and the 2nd world are all those nations alligned with the USSR after ww2 i.e. communis...
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[ [] ]
84ibdk
During WW2, did you have to be a British citizen to fight for the British Armed Forces?
I am conducting some research on my grandfather, who was a German Jew who escaped Germany and eventually served for several years in the British Armed Forces. He did not become a British citizen until 1947, however. I am just curious as to what he would have been classified as. I have found this [source](_URL_0_) from...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/84ibdk/during_ww2_did_you_have_to_be_a_british_citizen/
{ "a_id": [ "dvpx848" ], "score": [ 3 ], "text": [ "Apologies, I might have answered my own question through research. For those curious:\n\n > Some 10,000 men and women from Germany and Austria, Jews and other opponents of the Nazi regime, fought in British uniform. As \"friendly enemy aliens\" ...
[]
[ "http://www.bbc.co.uk/history/ww2peopleswar/timeline/factfiles/nonflash/a6651858.shtml" ]
[ [ "https://www.telegraph.co.uk/news/worldnews/europe/germany/5220598/Britains-secret-German-army.html", "http://www.helen-fry.com/books/churchills-german-army/" ] ]
2fhlr2
why do car dealerships (both foreign and domestic) fly huge american flags?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2fhlr2/eli5why_do_car_dealerships_both_foreign_and/
{ "a_id": [ "ck99oxj", "ck99qka", "ck9a7a0", "ck9ag65" ], "score": [ 8, 5, 3, 5 ], "text": [ "Trying to cash in on the patriotism of consumers. ", "To take advantage of the less intelligent public.", "To attract your attention. (And it worked, apparently!) ", ...
[]
[]
[ [], [], [], [ "http://www.youtube.com/watch?v=tX5ZRE26YWM" ] ]
2vm1eh
what is a "haircut" in economic terms?
My crude guess is that it means if somebody owed me $100, then if I were to sell that debt to somebody else, the "haircut" is the percentage difference in what I'm owed and what I expect to get, at current market values.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2vm1eh/eli5what_is_a_haircut_in_economic_terms/
{ "a_id": [ "coivbw1" ], "score": [ 2 ], "text": [ "Close. It's when someone puts up collateral for a debt. It's a percentage subtraction from the total value of the collateral, based on the risk of the collateral holding its value. More stable collateral would have a smaller haircut. " ] }
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[ [] ]
63c3cr
what happens in the brain during those 10 seconds when you wake up and you don't even know who you are.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/63c3cr/eli5_what_happens_in_the_brain_during_those_10/
{ "a_id": [ "dfsyz3w", "dft0dzq" ], "score": [ 10, 7 ], "text": [ "Think of your brain like a computer. When you turn a computer on, it doesn't start running right away. It has to boot up first, filling up various bits of the computer with the memory that makes it able to show you cat vide...
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[]
[ [], [] ]
fsf8n6
How much has the Salinity of the Oceans decreased after the melting that has occurred during the ending of the Ice Ages?
askscience
https://www.reddit.com/r/askscience/comments/fsf8n6/how_much_has_the_salinity_of_the_oceans_decreased/
{ "a_id": [ "fmmxlxp" ], "score": [ 2 ], "text": [ "Sea level during the ice age was 120m lower than today, or .12km. Total area of the oceans today is 361.9 million km\\^2. Ignoring area difference between now and then, the volume of melted ice water is .12 x 361.9 or 43.4 million cubic km. Th...
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[]
[ [] ]
2cc73j
why movies with good screenplays only have one or two writers, while the typical (and bad) blockbuster scripts often have up to three to four writers?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2cc73j/eli5_why_movies_with_good_screenplays_only_have/
{ "a_id": [ "cjdzkly", "cjdzwid", "cjdzzg2", "cje1f6b" ], "score": [ 3, 2, 2, 2 ], "text": [ "Because with more writers some movies tend to get written and rewritten, to the point that the story makes no sense anymore. An example would be [Prometheus](_URL_0_), which was pa...
[]
[]
[ [ "http://www.cracked.com/blog/5-behind-the-scenes-features-that-show-why-movies-went-wrong/" ], [], [ "http://en.wikipedia.org/wiki/WGA_screenwriting_credit_system" ], [] ]
9e87xq
why do certain foods cause food comas, but not others?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9e87xq/eli5_why_do_certain_foods_cause_food_comas_but/
{ "a_id": [ "e5my6x4" ], "score": [ 23 ], "text": [ "When you eat a really big meal, of any type of food really, you'll probably feel tired and sluggish afterwards, the \"food coma\". This is due to your body diverting blood and energy to start digesting the large load of food. Your body will also...
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[ [] ]
73c90b
Long ago when people lived in a place with many children and everyone slept and lived in the same room, where did the parents go to have sex?
All the children had to come from somewhere.
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/73c90b/long_ago_when_people_lived_in_a_place_with_many/
{ "a_id": [ "dnpmfz1" ], "score": [ 2 ], "text": [ "This question was asked before. /u/vertexoflife provided a thorough answer:\n _URL_0_\n\nTLDR: they just had sex with the children present" ] }
[]
[]
[ [ "https://www.reddit.com/r/AskHistorians/comments/2r4sq7/how_did_couples_with_children_have_sex_in_one/" ] ]
2pq9x1
Why is a tesseract depicted the way it is?
A few guys at work were talking about Interstellar, and we started talking about all those 'funny physics' - relativity, time dilation, black holes, and, of course, the tesseract. One of them didn't really understand the whole tesseract thing. I understand the challenges and concept behind depicting four dimensional s...
askscience
http://www.reddit.com/r/askscience/comments/2pq9x1/why_is_a_tesseract_depicted_the_way_it_is/
{ "a_id": [ "cmzdqir", "cmzfvmk" ], "score": [ 13, 7 ], "text": [ "I don't know anything about Interstellar so I don't know if I'm missing some important sci-fi context, but as far as why a tesseract is often drawn as a cube-with-a-cube it's fairly straightforward.\n\nStart with a point. T...
[]
[ "http://upload.wikimedia.org/wikipedia/commons/thumb/1/16/World_line.svg/2000px-World_line.svg.png" ]
[ [ "https://en.wikipedia.org/wiki/Hypercube", "https://en.wikipedia.org/wiki/Tesseract" ], [] ]
29qzz6
why does the electronic staticy sound my tv (which is hooked up to my computer) makes change when i open programs, go full screen for videos or cycle through firefox windows?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/29qzz6/eli5_why_does_the_electronic_staticy_sound_my_tv/
{ "a_id": [ "cino21y" ], "score": [ 2 ], "text": [ "does the cable connecting your pc and tv have a ferrite bead on it? _URL_0_\n\nyou are hearing 'noise' generated by the electronic circuits in your system leaking into the audio amplifier in the tv. when you ask the computer to do something diffe...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Ferrite_bead" ] ]
ak628n
if when a baby had jaundice, they can do phototherapy, why can’t jaundice in adult be treated the same way?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ak628n/eli5_if_when_a_baby_had_jaundice_they_can_do/
{ "a_id": [ "ef25cp5" ], "score": [ 3 ], "text": [ "Jaundice in babies is caused by the babies immature liver not being able to handle the breakdown of fetal haemoglobin as it is replaced by adult haemoglobin. The breakdown of haemoglobin makes bilirubin which the liver attaches to other molecules...
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[ [] ]
faq9np
why do certain musical notes harmonize?
I've struggled the understand the mechanism by which (and reason why) notes harmonize. I know most of music is math so that's probably why I can't figure it out.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/faq9np/eli5_why_do_certain_musical_notes_harmonize/
{ "a_id": [ "fizrxcr", "fizs587" ], "score": [ 10, 6 ], "text": [ "It's the relative position of the peaks and troughs of the wave form. If a second pitch has a waveform that will align a peak frequently, then the sound is considered pleasant. Two notes that are dissonant would have peaks ...
[]
[]
[ [], [] ]
3rf9l7
pixel resolution, and the difference between 1080p, 2k, 4k, and 10-bit
I understand that resolution refers to the number of pixels on a screen/picture/video, but what are the other 3, and how are they different than say 1080p?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3rf9l7/eli5_pixel_resolution_and_the_difference_between/
{ "a_id": [ "cwnk1ee", "cwnkbcj" ], "score": [ 4, 2 ], "text": [ "2K and 4K refer to resolutions higher than 1080. 4K is exactly 4x the resolution of 1080p at a resolution of 3840x2160. \n\n2K is only slightly higher than 1080p but it is a different aspect ratio, a resolution of 2048×108...
[]
[]
[ [], [] ]
nn8ts
how can someone be acquitted of murdering someone, but still be found guilty in a civil suit? e.g. oj simpson.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/nn8ts/eli5_how_can_someone_be_acquitted_of_murdering/
{ "a_id": [ "c3aesb1", "c3aew6c", "c3afcpj", "c3ag4fv", "c3aibc7", "c3ajvln", "c3aesb1", "c3aew6c", "c3afcpj", "c3ag4fv", "c3aibc7", "c3ajvln" ], "score": [ 3, 26, 6, 2, 5, 4, 3, 26, 6, 2, 5, 4 ], "text": [ "On...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [], [] ]
28dkv4
why can't i eat or drink anything before surgery.
Just had a minor surgery that required general anaesthetic, why couldn't I eat or drink for a few hours before?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/28dkv4/eli5_why_cant_i_eat_or_drink_anything_before/
{ "a_id": [ "ci9vlcc", "ci9vltf", "ci9w5nt", "ci9w8d4", "ci9w8w8", "ci9whsa", "ci9xgcu", "ci9yjh6", "ci9ysls", "cia3fln", "cia6hjh", "ciac9qy", "ciacap2" ], "score": [ 73, 25, 2, 8, 3, 3, 672, 11, 3, 11, 9, 2, ...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [], [], [] ]
2ho0q1
what happens when someone dies to access their password-secured accounts (e.g. checking account, email, financial portfolio)?
Is there some legal construct that enables a will executor, for example, to access a dead person's account(s)? Do they just call Wells Fargo and say, "hey this guy died we need access to his stuff"? What about email and personal files locked down on someone's computer?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2ho0q1/eli5_what_happens_when_someone_dies_to_access/
{ "a_id": [ "ckufddz" ], "score": [ 8 ], "text": [ "\nI used to do wills/estates before moving to IT/IP, so here's how it works:\n\n1. You can only use a Power of Attorney when the person is alive. Once they are deceased, a PoA is no longer valid and the attorney/executor must derive their authori...
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[]
[ [] ]
3i8ryo
how does carbon dioxide make stuff taste better when it is supposed to be harmful?
Side note: I've heard co2 be called 'poisonous' before. That has to be false, as we breathe it all the time. Maybe they were confused with co even though that is not poisonous, but can asphyxiate.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3i8ryo/eli5_how_does_carbon_dioxide_make_stuff_taste/
{ "a_id": [ "cue9w8b" ], "score": [ 2 ], "text": [ "Side note first: CO² **is** poisenous.\nOur body is **ex**haling it as a waste product. We are just tolerating a certain amount of it (up to 4%...normallly it is around 0.04%)\n\nMain question: CO² is added to conserve a product, since bacteria t...
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[ [] ]
4ys5fc
What was the situation with the papal-states during the creation of Italy
Were they forced into it and why didn't any catholic nations object?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/4ys5fc/what_was_the_situation_with_the_papalstates/
{ "a_id": [ "d6qmoaq" ], "score": [ 5 ], "text": [ " > Were they forced into it\n\nThey certainly were. Pius IX was the pontiff from 1846 until his death in 1878--basically the entirety of the process of Italian unification. At no point did he accept this process, and he resisted with armed forc...
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[ [] ]
1orjrk
Is it true that near the time of their respective deaths, MLK and Malcolm X were slowly drifting towards each other's ideologies?
Let me explain my question, I know it was worded terribly. To make a long story short, a few friends and I got into the old X-Men/Civil Rights Movement discussion. It wasn't a debate, just a discussion. One of my acquaintances in this group brought up the fact that it was funny how both Malcolm X and MLK Jr were assa...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1orjrk/is_it_true_that_near_the_time_of_their_respective/
{ "a_id": [ "ccuvfev", "ccuyqsz" ], "score": [ 23, 7 ], "text": [ "After reading Taylor Branch's epic trilogy *The King Era,* I don't recall anything about MLK sympathizing with black separatism or in any way abandoning non-violence. Rather, after the passage of the Civil Rights laws MLK ...
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[ [], [] ]
62puls
What was it like between Washington, DC and Richmond during the Civil War? Two capitals at war, but just down the road from each other.
I've always been curious why there didn't seem to have been as much fighting directly between the two capitals as I would have expected. Were they just insanely fortified? Or did it just never make sense strategically for either side?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/62puls/what_was_it_like_between_washington_dc_and/
{ "a_id": [ "dfp66un" ], "score": [ 2 ], "text": [ "I'm a bit confused by your third sentence. Are you suggesting that the area around/between the two capitals did not see much fighting? If so, I really couldn't disagree more. Northern Virginia was the great meatgrinder of the war, a relatively na...
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[ [] ]
1u5ze5
Did anyone who opposed interracial marriage claim that it would lead to homosexual marriage?
Back when interracial marriage was a contested legal issue, were there any opponents that used the "slippery slope" argument, and claimed that it could lead to legal homosexual marriage?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1u5ze5/did_anyone_who_opposed_interracial_marriage_claim/
{ "a_id": [ "ceew2mb", "ceex4ra" ], "score": [ 114, 83 ], "text": [ "Not a direct answer, but one reason it was claimed miscongenation was wrong, was because it produced more effeminate off spring.\n\n[\"....daily observation shows us that the offspring of these unnatural connections are ...
[]
[]
[ [ "http://books.google.com/books?id=nlFIAAAAYAAJ&pg=PA474&lpg=PA474&dq=generally+sickly+and%C2%A0effeminate,+and+that+they+are+inferior+in+physical.&source=bl&ots=ZulaacDMY3&sig=1YUwU1DasbK-wiofpY069km66hI&hl=en&sa=X&ei=PGjEUoeIDOLmsATh74CwDA&ved=0CC8Q6AEwAg" ], [] ]
60bunh
Marx expected that the Communist Revolution would have happened in an industrialized nation like the United States instead of a rural nation like Russia. Why did this never happen?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/60bunh/marx_expected_that_the_communist_revolution_would/
{ "a_id": [ "df5n668", "df5qq78", "df5zyuj" ], "score": [ 22, 16, 4 ], "text": [ "You may have already contemplated this, but just to begin with some additional precision, Marx envisioned a proletarian revolution, and not just a revolution *tout court*. Definitionally then, you won...
[]
[]
[ [ "https://www.marxists.org/archive/marx/works/1845/german-ideology/ch01a.htm", "http://marxists.catbull.com/archive/marx/works/1894/01/russia.htm" ], [ "https://en.wikipedia.org/wiki/Frankfurt_School" ], [] ]
4xwt48
why do men run the 110 meter hurdles while women run only 100 meters?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4xwt48/eli5why_do_men_run_the_110_meter_hurdles_while/
{ "a_id": [ "d6j422l" ], "score": [ 8 ], "text": [ "Historically, the lengths of the hurdle events varied greatly for both men and women. The men's even settled into 10 hurdles and 110m, while the women did 8 over 80m.\n\nIn the 1960s, they experimented with increasing the number of hurdles in th...
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[]
[ [] ]
egiojj
How can scientists determine the size of a species from only a few fossilized bones?
There are so many dinosaurs and other prehistoric animals we don't have a complete skeleton on. How are they able to calculate the size? Also another question: how do scientists know the bones they have found are from the same individual/species?
askscience
https://www.reddit.com/r/askscience/comments/egiojj/how_can_scientists_determine_the_size_of_a/
{ "a_id": [ "fca76be" ], "score": [ 3 ], "text": [ "Size estimates of extinct species are difficult to produce, especially with limited fossil material. The best way to go about it is to compare the fossils to the bones of closely related extant (living) species, which is easy enough for most mam...
[]
[]
[ [ "https://s3.amazonaws.com/academia.edu.documents/33246329/FarlHurlbetal05GatorJVP25.pdf?response-content-disposition=inline%3B%20filename%3DFEMORAL_DIMENSIONS_AND_BODY_SIZE_OF_ALLI.pdf&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWOWYYGZ2Y53UL3A%2F20191228%2Fus-east-1%2Fs3%2Faws4_request&amp...
20vb46
why in advanced physics can you only know a particles speed or location (but not both)
I remember reading in a book, I believe it was called Physics for Future Presidents that in really advanced physics (light or quantum or particle or something) that you can only know a particles speed or it's location but never both at the same time. Why is this?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/20vb46/eli5_why_in_advanced_physics_can_you_only_know_a/
{ "a_id": [ "cg72su1" ], "score": [ 4 ], "text": [ " > Why in advanced physics can you only know a particles speed OR location (but not both)\n\nSo in physics this is called the [uncertainty principle](_URL_0_), and it stems from the fact that objects have both particle-like and wave-like properti...
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[]
[ [ "http://en.wikipedia.org/wiki/Uncertainty_principle" ] ]
3ndyke
whatever happened to esperanto?
It was big in the 20th century and now we never hear about it. What gives?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3ndyke/eli5_whatever_happened_to_esperanto/
{ "a_id": [ "cvn5e7o", "cvn5liu", "cvnlk7s", "cvnmp9x", "cvnqfng", "cvox0l6" ], "score": [ 19, 9, 32, 12, 5, 6 ], "text": [ "I don't think it was ever really big. It was an intriguing concept that never really gained traction.", "Yeah, it was never reall...
[]
[]
[ [], [], [ "https://youtu.be/8gSAkUOElsg" ], [ "https://www.youtube.com/watch?v=UzDS2WyemBI", "https://incubator.duolingo.com/courses/eo/en/status" ], [], [] ]
1f612v
liberalism
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1f612v/eli5liberalism/
{ "a_id": [ "ca74o8i", "ca756z1", "ca77kzj", "ca77zqb" ], "score": [ 4, 7, 2, 2 ], "text": [ "Classic Liberalism or Progressive Liberalism?", "More information might be needed. What's considered \"liberal\" varies somewhat from country to country.", "Political ideol...
[]
[]
[ [], [], [], [] ]
2msqxu
if someone were farsighted in one eye and nearsighted in the other, wouldn't they just balance out?
This just came up in conversation, and no one can supply a valid answer.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2msqxu/eli5_if_someone_were_farsighted_in_one_eye_and/
{ "a_id": [ "cm77yh0", "cm78iuk" ], "score": [ 5, 2 ], "text": [ "You aren't viewing the farsighted lens' vision through the nearsighted lens, to correct the farsightedness, or vice versa. \n\nYou've got a farsighted (out of focus) image, and a near-sighted (out of focus) image. Two out of...
[]
[]
[ [], [ "http://www.allaboutvision.com/contacts/monovision.htm" ] ]
221vqa
Do infants need to learn how to walk, or do they just need to build up the muscles?
Specifically, when infants start walking, is it instinctual, and they just need to practice so they can build up the muscles, or is it partially learned?
askscience
http://www.reddit.com/r/askscience/comments/221vqa/do_infants_need_to_learn_how_to_walk_or_do_they/
{ "a_id": [ "cgisl6c" ], "score": [ 3 ], "text": [ "On my phone so not sure if this link is so great but it has to do with the time it takes for neuronal myelination to occur. The motor neurons are still developing the capacity to communicate with each other quickly enough. So there is cognitive l...
[]
[]
[ [ "http://www.kidshealth-central.com/child-development.html" ] ]
2rqnbm
Were Native American aware of the existence of other continents before 1492?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2rqnbm/were_native_american_aware_of_the_existence_of/
{ "a_id": [ "cnifovp", "cnig758", "cnigc6q", "cnihnzz" ], "score": [ 70, 282, 15, 2 ], "text": [ "Aware of other continents might be a stretch but awareness of other landmasses is most likely a yes.\n\nThere is evidence of contact across the Bering Strait at times. How ext...
[]
[]
[ [ "http://www.reddit.com/r/AskHistorians/comments/161n0z/old_worldnew_world_contact_across_the_bering/", "http://www.colorado.edu/news/features/researchers-unearth-ancient-bronze-artifact-alaska" ], [ "http://www.reddit.com/r/AskHistorians/comments/2ndmuo/tuesday_trivia_firsts_and_lasts/cmcpsam", ...
97b394
how do huge hotels like cesar's palace or the bellagio provide wifi for 1000's of rooms?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/97b394/eli5_how_do_huge_hotels_like_cesars_palace_or_the/
{ "a_id": [ "e46tyz9", "e46vrff", "e46x4gz" ], "score": [ 4, 6, 2 ], "text": [ "They have wireless access points through the entire building to cover all the rooms and usually one around the pool area as well.", "If you had a big garden and wanted to water all of your plants it...
[]
[]
[ [], [], [] ]
9xob9t
What is impedance ?
The concept of impedance is kind of blurry for me. Can you give examples to make me understand both acoustic and electric impedance ?
askscience
https://www.reddit.com/r/askscience/comments/9xob9t/what_is_impedance/
{ "a_id": [ "e9u4kch", "e9u6a8n" ], "score": [ 8, 2 ], "text": [ "It's a general term used to indicate the resistance to the passage of an influence through a material.\n\nThermal and acoustic impedance for example. If you get a junction where two materials of different impedance contact, ...
[]
[]
[ [], [ "https://www.falstad.com/circuit/e-capac.html" ] ]
mqe6f
What speed and mass would an impactor have to be to break through the thinnest ice crust of an icy moon?
I've been wondering about the feasability of a 2 component mission to an icy moon where an impactor would break throught the ice crust, closely followed by a autonomous ROV-type sub, coupled with an orbital telecom relay. A bit like the way we've handled the Deep Impact program on Tempel 1, but scaled in consequence. T...
askscience
http://www.reddit.com/r/askscience/comments/mqe6f/what_speed_and_mass_would_an_impactor_have_to_be/
{ "a_id": [ "c331dju", "c331dju" ], "score": [ 2, 2 ], "text": [ "Props for the cool idea but ...\n\nThe first major problem is that when exposed to space liquid water flash freezes. So you can't impact and then mosey over with your sub afterwards because it would already be frozen over. S...
[]
[]
[ [ "http://www.lpl.arizona.edu/tekton/crater_c.html", "http://www.geologyrocks.co.uk/tutorials/meteor_craters", "http://en.wikipedia.org/wiki/Europa_%28moon%29#Subsurface_ocean" ], [ "http://www.lpl.arizona.edu/tekton/crater_c.html", "http://www.geologyrocks.co.uk/tutorials/meteor_craters", ...
7ddgs3
Is there any truth to the claims that mass shooters are almost always on, or have been on, psychiatric medications?
askscience
https://www.reddit.com/r/askscience/comments/7ddgs3/is_there_any_truth_to_the_claims_that_mass/
{ "a_id": [ "dpx0z4f", "dpx3o06" ], "score": [ 4, 3 ], "text": [ "Maybe. But the claim is rather uninteresting. There's at least two possible conclusions to be drawn if it is true:\n\n1. Psychiatric treatment makes you shoot people.\n2. People with psychiatric problems are more likely to s...
[]
[]
[ [], [ "http://www.reddit.com/r/askscience/wiki/guidelines#wiki_asking_askscience", "https://www.reddit.com/message/compose?to=%2Fr%2Faskscience" ] ]
46swwo
Is there any actual evidence that multiple dimensions and universes exist?
askscience
https://www.reddit.com/r/askscience/comments/46swwo/is_there_any_actual_evidence_that_multiple/
{ "a_id": [ "d07n4n6", "d07tvmv", "d07xlr6", "d0842bk", "d08djf6" ], "score": [ 488, 41, 31, 8, 2 ], "text": [ "There is not.\n\nThe BICEP2 result from about a year ago seemed to imply that the universe had undergone such a rapid expansion in its early stages that t...
[]
[]
[ [], [], [], [], [] ]
fc5pdt
how does a touch screen detect touches under glass?
It's like magic, how do it work??
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fc5pdt/eli5_how_does_a_touch_screen_detect_touches_under/
{ "a_id": [ "fj8plll" ], "score": [ 9 ], "text": [ "It measures capacitance. Your finger is conductive. The \"glass\" is non-conductive. There is a layer of transparent conductor under the glass. Wherever your finger touches, a capacitor forms -- an area capable of holding an electric charge. By r...
[]
[]
[ [] ]
2kl7h9
Did civilizations conquered by the Romans retain their culture?
Let's say that during the reign of Augustus, if I were to go to Gaul would the cities/people appear more Latin or Celtic? I know that Greek culture most certainly survived well into the late empire, but what about other cultures like Dacian, Celtic, Thracian etc.?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2kl7h9/did_civilizations_conquered_by_the_romans_retain/
{ "a_id": [ "clmetj2" ], "score": [ 18 ], "text": [ "For a long time, we believed that, in some form or another, that there was a process of conscious and guided Romanization - that is, a process that led to the conquered people (with the admitted exception of hellenic cultures) becoming, in effec...
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60wgib
Is there any proof that some nunneries in the Middle Ages were actually brothels?
I have heard this many times, but I am having trouble finding any proof. Is this just a myth? Are there any confirmed written sources about this?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/60wgib/is_there_any_proof_that_some_nunneries_in_the/
{ "a_id": [ "dfapy2z" ], "score": [ 10 ], "text": [ "Basically, no. While medieval people were generally very skeptical of women's ability to not be oversexed little lustdemons, the beliefs that (1) celibacy was *basically* impossible and (2) nuns were being horribly exploited by the Church, trick...
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4mvpn2
why are airplane controls so god damnned complicated??
Airplane cabins have a million buttons and levers and switches... are they really necessary? With the technology we have today, can't we make airplanes that are more or less intuitive to use, like cars? If this is possible, why didn't we make it already?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4mvpn2/eli5why_are_airplane_controls_so_god_damnned/
{ "a_id": [ "d3yojek", "d3yolu7", "d3yp3kb", "d3yqt33", "d3yrjro" ], "score": [ 4, 8, 3, 5, 3 ], "text": [ "In modern configurations of aircraft, there are four basic controls - elevator (pitch), rudder (yaw), ailerons (roll), and throttle (power). Then there are th...
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[ [], [ "https://www.quora.com/What-do-all-the-controls-in-an-airplanes-cockpit-do" ], [], [ "http://www.airliners.net/photo/Lufthansa/Boeing-707-430/2495151/L/&sid=608d208f38965fd0349a3b52eb011d3c", "https://en.wikipedia.org/wiki/Primary_flight_display", "http://www.airliners.net/photo/Qa...
6egy0f
how is high salt intake "bad for you" if the japanese eat so much of it and have the life expectancy they do?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6egy0f/eli5_how_is_high_salt_intake_bad_for_you_if_the/
{ "a_id": [ "dia6v0d", "dia762a", "diaa9ai", "diab9nw" ], "score": [ 17, 4, 2, 2 ], "text": [ "It isn't, unless you have an existing heart condition.\n\nHigh-salt meals cause a short-term rise in blood pressure. For much of the late 20th century it was believed that long-t...
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[ [], [], [], [] ]
13m0d5
When did turkeys and cranberries come to be associated with Thanksgiving?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/13m0d5/when_did_turkeys_and_cranberries_come_to_be/
{ "a_id": [ "c758g3v", "c758zkh" ], "score": [ 7, 2 ], "text": [ "William Bradford, second governor of Plymouth first records eating turkey's in 1621. They were not considered particularly special. \n\n > They begane now to gather in ye small harvest they had, and to fitte up their houses ...
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[ [ "http://www.gutenberg.org/files/24950/24950-h/24950-h.htm#a1621", "http://www.histarch.uiuc.edu/plymouth/mourt1.html" ], [ "http://books.google.com/books?id=YmSzttn2V7kC&lpg=PA173&ots=br31-RFVxj&dq=Iroquois%20ceremonies%20harvest&pg=PA173#v=onepage&q=harvest%20ceremony&f=fa...
9c176y
Why does it seem like the Persian Empires get shafted in popular history and culture? The Parthians & Sassanids are barely mentioned, if at all in textbooks, even though they rivaled the Roman Empire. Is this Western bias, or are there a lack of sources? Even little old Carthage gets more love.
Perhaps this is personal bias, but over the course of my public education, the focus was Egypt, Mesopotamia, Greece, then Rome. The Persian Empire (Parthians, Sassanids, etc) is either mentioned briefly as an adversary to Rome, or never at all. Even though, to my - admittedly limited - knowledge the various Persian Emp...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/9c176y/why_does_it_seem_like_the_persian_empires_get/
{ "a_id": [ "e57cmxp", "e57ie6k", "e57ta74", "e57vyan" ], "score": [ 420, 236, 19, 36 ], "text": [ "As a related question, how is Persian history taught in Iran? Do they focus a lot on the various Persian Empires? What about Iraq and Afghanistan?", "Another question tha...
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[ [], [], [], [] ]
1k0klb
Want to study a war where a country/state is in between two other countries/states. Historical examples?
Hi, I am interested in studying a war where a country/state is sandwhich-ed between two other countries/states and acts as a bufferzone. It is kind of like China-North Korea-South Korea-ish. I want to know if there is any historical battle that depict similiar situation and what kind of strategy is used to defend/in...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1k0klb/want_to_study_a_war_where_a_countrystate_is_in/
{ "a_id": [ "cbk8hau", "cbkeuio" ], "score": [ 4, 2 ], "text": [ "France/Belgium/Germany seems relevant. Sandwiched between both major powers, Belgium was used by the Germans as a backdoor into France in both World Wars.\n\nIs that helpful? In truth I'm a little confused as to what exactly...
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1syoso
I have a newfound love for Ancient Roman politics. Any book suggestions from my beloved AskHistorians on this topic? (Non-fiction please!)
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1syoso/i_have_a_newfound_love_for_ancient_roman_politics/
{ "a_id": [ "ce2l0xt", "ce2l5ib", "ce2lkyw", "ce2qo7p" ], "score": [ 2, 2, 3, 2 ], "text": [ "The one that I recommend the most (because I consider it to be one of *the* best overviews of the Late Republic) is [Adrian Goldsworthy's *Caesar: Life of a Colossus.*](_URL_0_) It...
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[ [ "http://www.amazon.com/Caesar-Life-Colossus-Adrian-Goldsworthy-ebook/dp/B0015R3HJS/ref=sr_1_1?ie=UTF8&qid=1387149678&sr=8-1&keywords=life+of+a+colossus", "http://www.amazon.com/Masters-Command-Alexander-Hannibal-Leadership-ebook/dp/B005GG0JPO/ref=sr_1_1?ie=UTF8&qid=1387150043&sr=8-1&am...
j2of7
can someone explain to me how the us government works?
I'm British, so I can see the comparisons between the House of Lords/Commons and the congress/senate, but what role does the executive branch play? The president? State government? Can anyone give me a basic overview of the US government?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/j2of7/can_someone_explain_to_me_how_the_us_government/
{ "a_id": [ "c28n0ie", "c28n0iq" ], "score": [ 2, 6 ], "text": [ "Unlike the UK, where the head of state is the Queen (or whomever may be the reigning monarch at any given time) and the head of government is the Prime Minister, the President of the United States is both head of state and h...
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[ [], [ "http://www.socialstudieshelp.com/Lesson_13_Notes.htm" ] ]
2la8iz
When a ball is dropped towards the ground what is pictured as happening in the terms of General Relativity?
askscience
http://www.reddit.com/r/askscience/comments/2la8iz/when_a_ball_is_dropped_towards_the_ground_what_is/
{ "a_id": [ "cltitbz" ], "score": [ 2 ], "text": [ "It travels in an inertial reference frame (as there's no proper acceleration). This involves traveling along a \"straight line\" in spacetime, which because of the distortion due to gravity forces some of the spacetime interval to be spacial as w...
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fo3zev
what is the military grade gps and why can't we receive its signals just like normal gps?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fo3zev/eli5_what_is_the_military_grade_gps_and_why_cant/
{ "a_id": [ "flcz4a2" ], "score": [ 14 ], "text": [ "You are receiving the military signals. The US military disabled selective access in 2000, and ever since everyone on the planet has had the exact same GPS accuracy as the US military. Prior to 2000, the last few decimal points of the timecode w...
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afyc4r
Ancient Explanations of Static?
Ancient people used mythology to explain the things they didn't understand in nature. However I don't think I've seen anything on how ancient people viewed static electricity/static shocks. Surely they must have experienced them like we do. How did they rationalize them?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/afyc4r/ancient_explanations_of_static/
{ "a_id": [ "ee2dtt5" ], "score": [ 3 ], "text": [ "This is one of our most frequently asked questions! Please see /u/hillsonghoods' excellent answer [here](_URL_0_)." ] }
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[ [ "https://www.reddit.com/r/AskHistorians/comments/7rvynq/what_did_people_think_about_static_electricity/" ] ]
6o3ab4
how does smoke ward off mosquitos?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6o3ab4/eli5_how_does_smoke_ward_off_mosquitos/
{ "a_id": [ "dkez841" ], "score": [ 9 ], "text": [ "Mosquitoes (and gnats, for what it's worth) are super tiny little critters with super duper tiny little respiratory systems. Their little lungs (or equivalent, I'm not sure exactly what insects use to breathe) can't handle filtering out the smoke...
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2xtina
German colonialism in the 19th century?
So I have this paper on colonialism in the 19th century, and I'm having trouble gathering sources on the German side. Can you guys help on this? Thanks a bunch.
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2xtina/german_colonialism_in_the_19th_century/
{ "a_id": [ "cp3g3wm" ], "score": [ 5 ], "text": [ "Without you being more specific, I can't be entirely sure what you are after, but Sebastian Conrad's *German Colonialism: A Short History* (which does exist in English) is a good introduction to the topic, and the selected readings towards the en...
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vy3ti
How many plants and how big of a dome would a person need to live in a sealed, indefinitely life sustaining ecosystem?
as a follow up, can we put enough plants on a spaceship such that the humans and plants could breathe indefinitely?
askscience
http://www.reddit.com/r/askscience/comments/vy3ti/how_many_plants_and_how_big_of_a_dome_would_a/
{ "a_id": [ "c58nw33", "c58nxyi", "c58nzos" ], "score": [ 3, 69, 17 ], "text": [ "Tangentially, what would be the most efficient biodome, in terms of which plant and animal species, to provide for a family of four humans?", "Are you at all familiar with the biosphere-2 experime...
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[ [], [ "http://en.wikipedia.org/wiki/Biosphere_2#Oxygen" ], [] ]
3fsqxq
is there any discernible benefit to shampoos instruction to "lather, rise, repeat if needed" or is it just a ploy to get you to use twice as much shampoo?
I've done some things, including five-day-long festival living. I've never washed my hair and, before conditioning, thought "Actually this needs another go".
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3fsqxq/eli5_is_there_any_discernible_benefit_to_shampoos/
{ "a_id": [ "ctrlj3t", "ctrm94y" ], "score": [ 2, 2 ], "text": [ "It depends on your type of hair. If you have short hair, or thin hair, you can probably get away with a single wash and be fine. On the other hand, if your hair is long or thick, then it's probably best to wash your hair in ...
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7aou6r
Were communists slightly more tolerated in the United States during the period of WW2 when we were openly allies with Russia?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/7aou6r/were_communists_slightly_more_tolerated_in_the/
{ "a_id": [ "dpbu705" ], "score": [ 3 ], "text": [ "Follow up question. Was there ever a time when communists were notable political players in the US?" ] }
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4pbxu1
how does harmonizing work?
Is it different for singing vs instruments?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4pbxu1/eli5_how_does_harmonizing_work/
{ "a_id": [ "d4jp38d" ], "score": [ 5 ], "text": [ "Each musical note has an associated frequency. When played with other notes, the sound waves may either augment each other or disrupt each other. Harmonization typically works by playing multiple notes that augment each other, causing their sound...
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[ [ "https://en.wikipedia.org/wiki/Harmonic" ] ]
5d2vyc
what exactly do we need to start colonizing mars?
Basically (and in general), what do we need to get ready before thinking about living in the red planet?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5d2vyc/eli5_what_exactly_do_we_need_to_start_colonizing/
{ "a_id": [ "da1d29t" ], "score": [ 2 ], "text": [ "First, we need to find reliable ways to recycle everything we use in a sealed environment. We've done some good research in this area, but we've got a lot of work to do. For major things like O2 or water, we're pretty good, but reliably getting f...
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dp6381
Can we figure out the properties of a material just by knowing how it is atomically structured?
Given the atomic structure of an element, is there a way to deduct that elements properties? Can you theoretically figure out the color, bendablity, etc. of an element just by knowing how it is atomically structured? How could this be done?
askscience
https://www.reddit.com/r/askscience/comments/dp6381/can_we_figure_out_the_properties_of_a_material/
{ "a_id": [ "f5tejfh", "f5tl77m", "f5u94jn", "f5xcbs2" ], "score": [ 15, 7, 5, 2 ], "text": [ "There is a lot that can be determined by the structure of an element or material, but it is not a one-stop-shop for all properties. I can only speak to mechanical properties, as I...
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19qb7y
How do ISS astronauts prevent pathogen transfer?
I was watching a .gif of a water balloon being popped on the ISS and the force of the burst sent some of the water flying, yet still suspended in the air. It struck me that a sneeze would work the same way, with the mucous stuck in the air just waiting to spread disease to anyone who's floating between cabins. How ...
askscience
http://www.reddit.com/r/askscience/comments/19qb7y/how_do_iss_astronauts_prevent_pathogen_transfer/
{ "a_id": [ "c8qeza2", "c8qf17h", "c8ql6vx" ], "score": [ 2, 12, 5 ], "text": [ "I'm not a biologist, so perhaps somone can confirm this. I'm not currently aware of any functions in pathogens that require the use of gravity to function. Other than that, standard immunizations are k...
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[ [], [ "http://www.google.com/url?q=http://www.space.com/6628-routine-quarantine-helps-astronauts-avoid-illness-launch.html&sa=U&ei=_Xo2UavVL6Gx2QW8-oD4Bg&ved=0CCwQFjAA&usg=AFQjCNEQSXTh-13nTeU8mrBmCUvR14pibQ" ], [ "http://en.wikipedia.org/wiki/Apollo_7#Mission_highlights" ] ]
16vgq0
- semantics
I have looked up the definition but i cannot wrap my head around it.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/16vgq0/eli5_semantics/
{ "a_id": [ "c7zq1zl" ], "score": [ 3 ], "text": [ "It's rather hard to explain but it's about meaning of things. So two words, efsef and cat. Cat has semantics whereas efsef. When you hear cat, you know it means the 4 legged, disinterested in everything animal. Whereas efsef has no meaning. You ...
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9suemw
what makes older games (specifically games like fallout: new vegas) so incompatible with current operating systems like windows 10?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9suemw/eli5_what_makes_older_games_specifically_games/
{ "a_id": [ "e8rjcyz", "e8rnr4n" ], "score": [ 5, 3 ], "text": [ "Libraries, Registry Keys and Screen Resolution would be the main offenders, also, OS changes a lot from a version to another, it's more noticiable if you are more of and advanced user (support engineer, computer programmer a...
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wnk73
what would be the best possible thing to do when your phone gets completely submerged in water, and why?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/wnk73/what_would_be_the_best_possible_thing_to_do_when/
{ "a_id": [ "c5euaxc" ], "score": [ 5 ], "text": [ "1. Take out the battery.\n2. Bury the phone in a bowl of rice (uncooked, obviously) overnight.\n\nRemoving the battery reduces the probability of something shorting out because of the water.\n\nThe rice will absorb moisture from the phone, and dr...
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[ [] ]
3gj9l4
Is there any record of Joseph Stalin ever expressing any remorse for his executions, repressions, or for the death of his son Yakov?
I was inspired to ask this question after seeing [these](_URL_0_) two [paintings](_URL_1_) of Russia's second-most-famous autocrat.
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/3gj9l4/is_there_any_record_of_joseph_stalin_ever/
{ "a_id": [ "ctyv8jc" ], "score": [ 323 ], "text": [ "I'm going to recommend you (or anyone else interested in this topic) read [*Stalin: The Court of the Red Tsar* by Simon Sebag Montefiore](_URL_0_). \n\nThe word \"remorse\" does not appear in that book.\n\nHowever, \"sorrow\" does show up on pa...
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[ "http://uploads4.wikiart.org/images/ilya-repin/ivan-the-terrible-and-his-son-ivan-on-november-16-1581-1885.jpg", "http://4.bp.blogspot.com/-G1P0BMySdMQ/VZ1_JT6WvdI/AAAAAAAAKPQ/_tn-G9n-7yg/s1600/Mikhail%2BKlodt%2BIvan%2Bthe%2BTerrible%2BVisited%2Bby%2Bthe%2BGhosts%2Bof%2BThose%2BHe%2BMurdered%2B%25D0%2598%25D0%25B...
[ [ "http://www.nytimes.com/2004/04/18/books/the-fourth-greatest.html?pagewanted=all" ] ]
oe3ol
romney and bain capital
What did Mitt Romney do while he was with Bain Capital? How does he try to spin it, and how do his opponents try to spin it?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/oe3ol/eli5_romney_and_bain_capital/
{ "a_id": [ "c3gi2vt" ], "score": [ 13 ], "text": [ "Romney used to work for a company called Bain Capital. They are a private equity firm. Bain's makes money by buying companies in failure, and fixing them up and then reselling them. House flipping for the fortune 500 is an oversimplification. \n...
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8aultc
why does chicken separate into little strings when you tear it?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8aultc/eli5_why_does_chicken_separate_into_little/
{ "a_id": [ "dx1nim0" ], "score": [ 5 ], "text": [ "Most Meat is muscle tissue. Muscle is made of strands of tissue that work together to do whatever that muscle is. That's being broken apart when you cut it, and that's what you're seeing." ] }
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22ccrs
how do some teenagers or young adults get volunteer work in south america or africa?
A friend claimed that most students who recieve the biggest scholarships obtained them for this kind of volunteer work. She said that she did not have the resources to volunteer out of country, thus giving richer students an advantage for scholarships. I know this is not the right way to look at volunteerism, but does ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/22ccrs/eli5_how_do_some_teenagers_or_young_adults_get/
{ "a_id": [ "cgleot4" ], "score": [ 2 ], "text": [ "Often, such volunteer work are mission trips organized by their church, funded by the congregants." ] }
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j3tr1
sociopaths, how do they work?
Not going to lie, I love watching cop dramas and I always hear this word thrown around when describing suspects. Can you explain to me like I'm 5 what being a sociopath actually entails?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/j3tr1/eli5_sociopaths_how_do_they_work/
{ "a_id": [ "c28wl9v", "c28wzg3", "c28x7y6" ], "score": [ 2, 2, 3 ], "text": [ "They don't feel guilty about doing bad things, if they follow rules it is a completely logical decision.", "Funny enough, this is a good question for a five-year-old, since technically speaking, man...
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[ [], [], [] ]
14l5c3
Will it ever be possible for North and South Korea to exist as one, unified country?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/14l5c3/will_it_ever_be_possible_for_north_and_south/
{ "a_id": [ "c7e324z" ], "score": [ 2 ], "text": [ "I think this question is stretching the concept of \"history\", maybe /r/Asksocialscience is a better fit.\n\nanyway, [here's a background article on the costs of potential reunification](_URL_1_), drawing parallels with Germany (we're still not ...
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[ [ "http://en.wikipedia.org/wiki/Korean_reunification", "http://online.wsj.com/article/SB10001424052748704340304574635180086832934.html" ] ]
lgd49
why characters on shows have to hide apple logos on their laptops
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/lgd49/why_characters_on_shows_have_to_hide_apple_logos/
{ "a_id": [ "c2sggh5", "c2sggh5" ], "score": [ 22, 22 ], "text": [ "If you're not paying for advertising you don't get it for free. And it also works the other way. Apple may not want to be associated with their show. It's just easier all around to not have any logos of anyone other tha...
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[ [], [] ]