q_id stringlengths 5 6 | title stringlengths 3 296 | selftext stringlengths 0 34k | document stringclasses 1
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value | url stringlengths 4 110 | answers dict | title_urls list | selftext_urls list | answers_urls list |
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f7l6vu | when words are translated to english, how is the spelling of those words determined, and who makes the decision? | The question struck me while playing a game featuring a character named Ratonhnhaké:ton (pronounced Rah-Tone-Ha-Kay-Tun). Reading his name in the subtitles made me wonder how it’s spelling (using the English alphabet) was determined. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f7l6vu/eli5_when_words_are_translated_to_english_how_is/ | {
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"text": [
"It depends on the language. There are often standard or semi-standard ways of transliterating between different languages. (BTW the term is transliterate not translate). \n\nFor example, a standard way of writing Mandarin i... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Mohawk_language#Orthography"
],
[]
] | |
389q5p | why are all digital images rectangular? | In the past, [printing pictures on rectangular paper from a rectangular slide made sense, as do rectangular sensors in digital cameras producing rectangular photographs](_URL_0_), but digitally, why is the rectangle still our go-to? (Or is it?) Does the answer lie in history, photography, psychology, anthropology, tech... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/389q5p/eli5_why_are_all_digital_images_rectangular/ | {
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"text": [
"In design, it's much simpler to lay things out on a spread when they are all rectangular. Normally designers lay things out using a grid insuring things are laid out with even spacing, odd shapes often... | [] | [
"http://www.reddit.com/r/explainlikeimfive/comments/1j3o7o/why_are_lenses_apertures_shutters_sensors_in_a/"
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[],
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2789fm | how is the wii virtual console able to accurately emulate n64 games when the current state of n64 emulation is poor, at best? | Specifically, I tried playing *Kirby and the Crystal Shards* on several emulators, and none of them can emulate the game perfectly. The same goes for *Super Smash Bros.*, but both of these games work flawlessly on Virtual Console.
Is Nintendo actually taking the original source code for all these N64 games and rewriti... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2789fm/eli5_how_is_the_wii_virtual_console_able_to/ | {
"a_id": [
"chydbcy",
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"score": [
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"text": [
"I wouldn't call it poor. It is actually very good! My cell phone can handle every N64 game I've thrown at it almost perfectly. The only problem I have ever experienced is the occasional failed texture load.",
"Nintendo... | [] | [] | [
[],
[]
] | |
dkf6oy | why does a short circuit produce so much heat? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dkf6oy/eli5_why_does_a_short_circuit_produce_so_much_heat/ | {
"a_id": [
"f4du4ky"
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"score": [
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"text": [
"A short circuit is a circuit with little to no resistance. No resistance means the maximum current can flow through the circuit. Maximum current = heat. This is how a circuit breaker works. There's a bar inside the breaker that will change s... | [] | [] | [
[]
] | ||
2bbv3i | object oriented programming vs procedural vs functional | I have seen descriptions on this subreddit for OOP, but I would appreciate a comparison. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2bbv3i/eli5_object_oriented_programming_vs_procedural_vs/ | {
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"text": [
"OOP and Procedural are sort of inside-outs of each other. Both are different ways of organizing data and the operations on that data, and the difference is where the operations are.\n\nIn Procedural programming, data struct... | [] | [] | [
[],
[]
] | |
4hiaaa | how efficient is our digestive system? | For example, if we consume 100 calories we are definitely not going to suck up all the 100 calories through our digestive system. What is the average efficiency of a human digestive system?
If a thin person eats too much and does not gain weight does this mean his digestive system's efficiency to consume calories is ve... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4hiaaa/eli5how_efficient_is_our_digestive_system/ | {
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"score": [
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"text": [
"There's no single answer as our digestive efficiency is GREATLY affected by a bunch of different things, so t... | [] | [] | [
[],
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"https://www.reddit.com/r/explainlikeimfive/comments/4hiaaa/eli5how_efficient_is_our_digestive_system/d2pupat"
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"https://www.youtube.com/watch?v=VEQaH4LruUo&feature=youtu.be"
],
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"https://www.youtube.com/watch?v=nWgljf6CaJU"
],
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2u7rgj | what is a computer "doing" when it's slow? | For example, I work on a Windows machine that's starting to get slow because it's a few years old. When I open a document, or try to open a new tab on my browser, or move an object in my PowerPoint (or anything, really), it just sits there doing nothing for like a minute, then it does the thing.
What is it doing as i... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2u7rgj/eli5_what_is_a_computer_doing_when_its_slow/ | {
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"text": [
"It has a bit to do with how many things are running in the background. It's not thinking about how to do it, it's just doing a lot of things at once, especially if you have a ton o... | [] | [] | [
[],
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6ql5i7 | what is the actual difference between the three fuel grades found at gas stations? i understand many cars use premium fuel but i don't know exactly why. also why unleaded plus is there a situation where regular or premium are not suitable (besides price of course) -thanks | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6ql5i7/eli5_what_is_the_actual_difference_between_the/ | {
"a_id": [
"dky30mm"
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"score": [
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"text": [
"This has been asked about a thousand times, so for a more complete answer you should search.\n\nShort version: Higher octane rating means higher knock resistance. High compression engines need higher octane rated gas to avoid knocking, which can ... | [] | [] | [
[]
] | ||
6wvgdm | what is the turnaround time when it comes to donating to a disaster relief program? what's the process from donation, to actually being received by those affected? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6wvgdm/eli5_what_is_the_turnaround_time_when_it_comes_to/ | {
"a_id": [
"dmb25xe",
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"score": [
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"text": [
"I am not sure about how long it takes for the money to flow in but I did some work for the Red Cross many years ago and they used 3 sources to fund rapid response. The have some money in the bank, they ... | [] | [] | [
[],
[],
[
"http://www.slate.com/articles/business/metropolis/2017/08/don_t_give_money_to_the_red_cross_we_need_a_new_way.html"
]
] | ||
bwa8ez | why does it "feel good" to look at someone that cute? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bwa8ez/eli5_why_does_it_feel_good_to_look_at_someone/ | {
"a_id": [
"epw7c2q",
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"score": [
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2
],
"text": [
"When looking at something or in your case someone attractive, your body releases some happy hormones which make you feel good. This is because of the fact that our bodies are biologically always in search for a mating partn... | [] | [] | [
[],
[]
] | ||
f13z6x | why can dry skin result in more growth of ingrown hairs? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f13z6x/eli5_why_can_dry_skin_result_in_more_growth_of/ | {
"a_id": [
"fh1wbk6"
],
"score": [
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],
"text": [
"Because the skin isn't so flexible to allow the hair to push through. You should also be exfoliating as well as moisturizing to help prevent ingrown hairs."
]
} | [] | [] | [
[]
] | |
frmf91 | why computer games often have bugs connected to the amount of fps (frames per second)? in some games, it affects the movement speed of playable character. red dead redemption 2 had the problem with it too: if you have many fps, it made character's weight lose. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/frmf91/eli5_why_computer_games_often_have_bugs_connected/ | {
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"text": [
"More of a side comment than an answer, but the original Call of Duty game had an FPS related bug on multiplayer servers. The host could limit the max FPS to a certain amount, and it would effect the gra... | [] | [] | [
[],
[],
[]
] | ||
19hmpl | how do electricity companies store electricity? | Is it stored up or does it just generate as we use it? How do they store electricity that isn't currently in use? What's going on there? This is just something I've never understood or really looked into, but I've always wondered. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/19hmpl/eli5_how_do_electricity_companies_store/ | {
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"text": [
"they calibrate production to match consumption. sometimes they get it wrong and get brownouts. they dont store it though as far as i know.",
"First: They don't. It's pretty ... | [] | [] | [
[],
[],
[],
[]
] | |
75yjrv | how does the wood type that an instrument is made out of impact sound quality? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/75yjrv/eli5_how_does_the_wood_type_that_an_instrument_is/ | {
"a_id": [
"do9vv8r"
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"score": [
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"text": [
"Like copper and iron are both metals but have *drastically* different properties, oak and pine are both woods but have drastically different properties.\n\nProperties that differ could be anything from ease of working with the material to the res... | [] | [] | [
[]
] | ||
5ibxv7 | why does sodium chloride dissolves in water but not in ethanol, when both are polar compounds? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ibxv7/eli5_why_does_sodium_chloride_dissolves_in_water/ | {
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"text": [
"NaCl does dissolve in ethanol, just not very much. Water is far more polar and and the small molecular size would allow for more interactions with Na+ and Cl-. With more ions being supported by the solvent, more ions can ... | [] | [] | [
[],
[]
] | ||
nl7yz | how did kim il-sung get into power, and how was he able to convince his people that he had superpowers? | Please guys don't just say under threat of violence. I'm genuinely curious how him and his son were able to have such a way over these people - and how they got there in the first place. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/nl7yz/how_did_kim_ilsung_get_into_power_and_how_was_he/ | {
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"c... | [] | [] | [
[],
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"http://www.strategicstudiesinstitute.army.mil/pdffiles/pub644.pdf"
],
[
"http://www.slate.com/articles/news_and_politics/fighting_words/2010/02/a_nation_of_racist_dwarfs.single.html",
"http://en.wikipedia.org/wiki/Korean_Confucianism",
"http://en.wikipedia.org/wiki/Korean_War"
],
[]... | |
b47pfh | if the freezing point for hydrogen is -259.2°c, and the freezing point for oxygen is -218.8°c, why is the freezing point of water so much higher? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b47pfh/eli5_if_the_freezing_point_for_hydrogen_is_2592c/ | {
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"text": [
"Water is a polar molecule. The 'plus-side' of the molecule will attract the 'minus-side' of the molecule. This attraction means that it will condense and subsequently freeze at much higher temperatur... | [] | [] | [
[],
[],
[]
] | ||
ca5loc | why does heat expand radius of the circle in metals? | Thermodynamic: In my understanding heat expands distance between metal particles in all direction. If we take cylinder (tube) and heat it up, shouldn't the hole of cylinder get smaller as heat increases, or does distance between air particles expand too? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ca5loc/eli5_why_does_heat_expand_radius_of_the_circle_in/ | {
"a_id": [
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"text": [
"Consider an iron tyre for an old-timey wheel. It's basically just a long strip of metal that's been bent into a hoop. If it weren't bent into a hoop and you heated it up, you would expect the strip to get longer. Since it is a loop, what that loo... | [] | [] | [
[]
] | |
2do4hp | do pet fish get bored living in a fish tank? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2do4hp/eli5_do_pet_fish_get_bored_living_in_a_fish_tank/ | {
"a_id": [
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"text": [
"Found a study relating to this:\n\n_URL_0_\n > The first study to take a comprehensive look at fish aggression related to the size of the environment has revealed that most pet fish are probably rea... | [] | [] | [
[
"http://www.themarysue.com/hate-fish/"
],
[],
[]
] | ||
8pdyov | why does being in the sun help with my depression? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8pdyov/eli5_why_does_being_in_the_sun_help_with_my/ | {
"a_id": [
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19,
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"text": [
"The sun light is very important because it helps our body to produce serotonin and melatonin, two hormons making us awake and more dynamic. It also configure our internal clock which is crucial for go... | [] | [] | [
[],
[
"http://bjp.rcpsych.org/content/bjprcpsych/202/2/100.full.pdf"
],
[]
] | ||
fhib9d | why are transportation prices going down? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fhib9d/eli5_why_are_transportation_prices_going_down/ | {
"a_id": [
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"score": [
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"text": [
"Gas prices are because Russia and Saudi Arabia are in a price war, but the rest is simple demand-based pricing. Demand is low, so supply (e.g. open seats on planes) is high and prices are lowered to try and sell. \n\nIt's no... | [] | [] | [
[],
[]
] | ||
16j4ej | explain lows, mids, and highs for headphones to me. | I just don't understand the difference, at all. I've read a few things, attempting to understand it, but the people used more words that caused further confusion. Could someone explain what they are to me, possibly by using example or something of the like? Any help is appreciated, whether it be a link to a good explan... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/16j4ej/explain_lows_mids_and_highs_for_headphones_to_me/ | {
"a_id": [
"c7wo4f8"
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"score": [
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"text": [
"Lows are the bass, highs are the treble, mids are in between. \n\nFor lows, imagine a kick drum: thump thump thump\nFor highs, imagine tapping on a wine glass: tink tink, chimey \n\nUsually instruments have some of each, though. For example, the ... | [] | [] | [
[]
] | |
2mh6lp | 9 billion dollar witness jpmorgan paid off. i tried reading articles but i just couldn't understand what happened. | What exactly went down here? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mh6lp/eli5_9_billion_dollar_witness_jpmorgan_paid_off_i/ | {
"a_id": [
"cm45pdr",
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"text": [
"It looks like JPMorgan bought and sold loans that should not have been, made money off of them, and didn't tell anyone that the loans were unsafe for banks. People lost a bunch of money and that's about... | [] | [] | [
[],
[
"http://www.rollingstone.com/politics/news/the-9-billion-witness-20141106"
],
[]
] | |
7dh4eq | why is it that different language groups make different sounds (onomatopoeia) - for example, a rooster's crow? why are they not universally the same? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7dh4eq/eli5_why_is_it_that_different_language_groups/ | {
"a_id": [
"dpxrdpx"
],
"score": [
5
],
"text": [
"Because how you hear something is heavily influenced by the language you live in. So the onomatopoeia you choose to represent that sound will be different in different languages. \n\nFor example many native speakers of Asian languages have a mass... | [] | [] | [
[]
] | ||
ahb42q | what does having an extra exhaust pipe (2 in total) do for a car’s performance? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ahb42q/eli5_what_does_having_an_extra_exhaust_pipe_2_in/ | {
"a_id": [
"eecw0sa",
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"score": [
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4,
13
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"text": [
"On normal cars with small engines, nothing except the look. The reason you'd NEED it on bigger sized engines is because they take in more air, use it to combust the fuel then they need to expell the a... | [] | [] | [
[],
[],
[]
] | ||
bl1yaf | why does our vision distort things when we stare at something too long without blinking? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bl1yaf/eli5_why_does_our_vision_distort_things_when_we/ | {
"a_id": [
"emkxs6f",
"eml01md"
],
"score": [
15,
4
],
"text": [
"the cells in your eyes that let you see things get fatigued over time. They just keep trying to send the same signals constantly and they stop working. Moving your eye even a tiny bit is enough to resolve this problem insta... | [] | [] | [
[],
[]
] | ||
68gbfh | the difference between a private company vs a company that has gone public. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/68gbfh/eli5_the_difference_between_a_private_company_vs/ | {
"a_id": [
"dgy7tno",
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"score": [
2,
3
],
"text": [
"Private companies are, as their name suggests, privately owned (either by the company's founders, some family members, or a group of investors). Public companies have expanded ownership to that of the public by selling share... | [] | [] | [
[],
[]
] | ||
6sfjku | how do microphone "pop filters" work? | How does putting a piece of fabric over your mic stop wind noise and plosives? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6sfjku/eli5_how_do_microphone_pop_filters_work/ | {
"a_id": [
"dlcbtk4",
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"score": [
59,
6,
2
],
"text": [
" > How does putting a piece of fabric over your mic stop wind noise \n\nWind doesn't blow through fabric very well. Most people learn this from their experience wearing clothes.",
"A well-built mi... | [] | [] | [
[],
[],
[
"http://vocaroo.com/media_command.php?media=s0wPTElvthNL&command=download_mp3"
]
] | |
di8kqu | how do doctors prevent getting ill from the patients? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/di8kqu/eli5_how_do_doctors_prevent_getting_ill_from_the/ | {
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... | [] | [] | [
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5ouf6j | lottery earnings, how does the irs/government look and treat them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ouf6j/eli5_lottery_earnings_how_does_the_irsgovernment/ | {
"a_id": [
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"score": [
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"text": [
"lotto winnings are gambling winnings, taxed as ordinary income, but the food stamp system seems to have some holes that do not consider net worth, just income. Or perhaps they just dont monitor it well.\n\nThey were trying... | [] | [] | [
[],
[]
] | ||
14xogq | why stockholm syndrome occurs | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/14xogq/eli5_why_stockholm_syndrome_occurs/ | {
"a_id": [
"c7hdull"
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"score": [
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"text": [
"I think there are at least two parts to consider as to why Stockholm Syndrome occurs.\n\n\nFirst, imagine I kidnap you from your mommy and daddy (cause you're 5 years old). The news, the TV, your parents, and the police have all told you that i... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Mere-exposure_effect"
]
] | ||
5epyel | what is linear and non-linear development in the context of software development? | I am currently learning about Git, and the term 'non-linear' keeps poping up. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5epyel/eli5_what_is_linear_and_nonlinear_development_in/ | {
"a_id": [
"daec8yp"
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"score": [
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"text": [
"That's very specifically a thing in version control\n\nIf your version control system sees the world in a linear way, then what happens is: you make changes, then I make a changes, then you make some more changes, like this:\n\n o (Start)\n ... | [] | [] | [
[]
] | |
2jk9bf | why is the window of youth for a female (that is, the years of highest fertility) so short? | Why doesn't this window last into her 40s, but is concentrated in her late teens and early 20s? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2jk9bf/eli5_why_is_the_window_of_youth_for_a_female_that/ | {
"a_id": [
"clcia7q",
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"score": [
2,
3
],
"text": [
"For much of human history, a female who survived to childbearing age only had a life expectancy of making it to her late 40's or early 50's anyways.\n\nLife expectancy at birth was significantly lower.\n\nHaving a bunch of k... | [] | [] | [
[],
[]
] | |
70rrkz | why does flammable and inflammable mean the same thing? | As the title says, why the difference from words such as indestructible, invisisble etc | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/70rrkz/eli5_why_does_flammable_and_inflammable_mean_the/ | {
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"text": [
"because \"inflammable\" comes from \"inflame,\" and comes via [French](_URL_0_), whereas flammable comes directly from Latin and was only popularized relatively recently, because in English the \"in-\" prefix became a popul... | [] | [] | [
[
"http://etymonline.com/index.php?term=inflammable&allowed_in_frame=0"
],
[]
] | |
7ro1ug | why is it we can it people into a medical induced coma but not any medical use to get them out of coma? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7ro1ug/eli5_why_is_it_we_can_it_people_into_a_medical/ | {
"a_id": [
"dsydhpn"
],
"score": [
11
],
"text": [
"Medically induced coma is done through drugs(barbiturates). Drugs wear off, patient wakes up. Comas cause by accident are a result of damage to the brain which is slow to repair/rewire if it ever does."
]
} | [] | [] | [
[]
] | ||
25ch5q | what was an average german soldiers mindset pre, during, and post ww2 | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/25ch5q/eli5_what_was_an_average_german_soldiers_mindset/ | {
"a_id": [
"chftz4d"
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"score": [
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"text": [
"There were numerous \"types\" of german soldiers, Nazi Germany's armed forces being one of the most convoluted and complex militaries ever. I'm not sure what type of German soldier would be \"average\", but I'll stick with the Wehrmacht soldiers ... | [] | [] | [
[]
] | ||
1zk52n | if the us has control over icann can they take down any site? just hypothetically could they take down _url_0_ | Hypothetically could they? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1zk52n/if_the_us_has_control_over_icann_can_they_take/ | {
"a_id": [
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"text": [
"They *could* remove them from the root DNS servers (not sure about the legalities of this, would probably cause a huge backlash about freedom of speech and freedom of information etc). But that would only stop people from reaching it by going to... | [
"thepiratebay.se"
] | [] | [
[
"thepiratebay.se"
]
] | |
br617g | how were computers “commanded” before computer languages existed? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/br617g/eli5_how_were_computers_commanded_before_computer/ | {
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"text": [
"A computer by definition has some kind of command process, or language. Even simple indexers, analytical engines, and other predecessors of actual computers.... | [] | [] | [
[],
[],
[],
[
"http://web.ncf.ca/aa333/bumper.gif",
"http://forums.ni.com/legacyfs/online/202594_Hololens_LabVIEW_simple_example.png",
"https://kyozoufs.blob.core.windows.net/filestoragedb1/Pictures/_17/16780/16779875.jpg",
"https://upload.wikimedia.org/wikipedia/commons/3/35/Altair_8800%2C_Sm... | ||
37dok7 | why the us is being blamed for isis | It seems that [these comics](_URL_0_) blame the US/Israel for the existence and actions of ISIS | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/37dok7/eli5_why_the_us_is_being_blamed_for_isis/ | {
"a_id": [
"crlsns3",
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"score": [
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"text": [
"Basically the US took out a major government and didn't put it back. That left a \"power vacuum\" which ISIS filled. ",
"The War in Iraq destabilized the region. When the U.S. pulled out of Iraq it left behind weaponry ... | [] | [
"http://resistart.ir/%DA%AF%D8%A7%D9%84%D8%B1%DB%8C-%D8%A2%D8%AB%D8%A7%D8%B1-%D9%85%D8%B3%D8%A7%D8%A8%D9%82%D9%87-%D8%A8%DB%8C%D9%86-%D8%A7%D9%84%D9%85%D9%84%D9%84%DB%8C-%D8%AF%D8%A7%D8%B9%D8%B4-%D8%A8%D8%AE%D8%B4-%DA%A9%D8%A7%D8%B1%D8%AA%D9%88%D9%86/"
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[],
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"http://www.washingtonpost.com/world/national-security/cia-begins-weapons-delivery-to-syrian-rebels/2013/09/11/9fcf2ed8-1b0c-11e3-a628-7e6dde8f889d_story.html",
"http://www.businessinsider.com/us-weapons-likely-fell-into-isis-hands-in-ramadi-2015-5"
]
] | |
fxzajv | why is there so much latin written across our modern world? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fxzajv/eli5_why_is_there_so_much_latin_written_across/ | {
"a_id": [
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"score": [
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2
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"text": [
"This can be traced to the Roman Catholic Church. In Medieval Europe Priests had to learn Latin because Bibles were written primary in Latin. This also made it a de-facto universal language because priests from all corners of... | [] | [] | [
[],
[]
] | ||
2l1oo0 | do muslim women pray like men? | I work in a warehouse with a large number of Muslims and every day several of the men go and pray at sunset yet none of the women do even though they out number the men 2:1 and a lot claim to be deeply religious. It got me thinking and I cannot ever remember seeing a women pray in the way men do or see it depicted in m... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2l1oo0/eli5do_muslim_women_pray_like_men/ | {
"a_id": [
"clqmgg7"
],
"score": [
2
],
"text": [
"Muslim women aren't as obligated to go to the mosque as men. Also, a lot of Muslim women prefer not to be seen by non-relative men while praying, and since they pray at home, praying is much faster. If you go to a mosque you'd find the women hav... | [] | [] | [
[]
] | |
1shk7x | why does a phone trace take so long if there's data constantly going back and forth? | If you're talking to someone on a phone, you must know where the phone is. How else could the phone send your audio to the right place? So why does it apparently take so long to trace the location of a call? And how does it work, anyways? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1shk7x/eli5_why_does_a_phone_trace_take_so_long_if/ | {
"a_id": [
"cdxn0lt",
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"score": [
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"text": [
"You've been watching too many cop dramas.",
"That is just a movie embellishment to add suspense or drama to the situation. Unless the phone company is demanding a warrant, it would not take long for them to figure out w... | [] | [] | [
[],
[]
] | |
5ngsnl | why is it when we are younger we like sweeter food and can eat large quantities of them. but as adults we tend to like more fuller and bitter flavors, and sweeter foods can sometimes be "too rich"? | Edit: Thanks for all the responses everyone! | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ngsnl/eli5_why_is_it_when_we_are_younger_we_like/ | {
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... | [] | [] | [
[],
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"http://www.npr.org/sections/thesalt/2011/09/26/140753048/kids-sugar-cravings-might-be-biological"
],
[
"http://www.npr.org/sections/thesalt/2011/09/26/140753048/kids-sugar-cravings-might-be-biological"
]
] | |
3dj0oi | why is it hottest when the sun begins to set instead of when the sun is at its highest point? | Example: 12pm 86 degrees vs. 4pm 101 | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3dj0oi/eli5_why_is_it_hottest_when_the_sun_begins_to_set/ | {
"a_id": [
"ct5l3pr",
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"score": [
5,
2,
2
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"text": [
"The atmosphere takes time to heat up and cool down. While the sunlight may be more indirect in the afternoon, the atmosphere overall has been exposed to more sunlight at that point than it has at noon.\... | [] | [] | [
[],
[],
[]
] | |
5c3vph | why do people always want the newest available thing, whether it be a gadget, vehicle, tool, toy, etc? what theory or concept is this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5c3vph/eli5_why_do_people_always_want_the_newest/ | {
"a_id": [
"d9tfb4f",
"d9um2nm"
],
"score": [
5,
2
],
"text": [
"Because people want to show off and maintain or increase their social status (or 'importance' of the group).\nPeople like to feel important and they more so like to feel better than others, especially their peers. So they tr... | [] | [] | [
[],
[]
] | ||
6viwvc | why do phone cameras (for example) make close objects appear much further than they really are when compared to the naked eye? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6viwvc/eli5_why_do_phone_cameras_for_example_make_close/ | {
"a_id": [
"dm0j0wp",
"dm0jl32"
],
"score": [
7,
11
],
"text": [
"Selfies.\n\nThey have wide angle lenses because people want to be able to hold their phone out and get a picture of themselves. It's also important to support video chat, you don't want to video chat with a life-size face,... | [] | [] | [
[],
[]
] | ||
3n9e9h | the exact difference between cosplay and just fancy dress. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3n9e9h/eli5_the_exact_difference_between_cosplay_and/ | {
"a_id": [
"cvm0a6h",
"cvm0awg"
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"score": [
3,
2
],
"text": [
"Cosplay stands for costume play. You are dressing up as a character, in a costume.\n\nFancy dress is just that, fancy. It has no, at least stated, tie to emulating a fictional character or thing.",
"Cosplay has to be a c... | [] | [] | [
[],
[]
] | ||
7qay8y | how much of nutritional value depends on chewing? how much work of the digestive process depends on how finely food is chewed? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7qay8y/eli5_how_much_of_nutritional_value_depends_on/ | {
"a_id": [
"dsnss85"
],
"score": [
23
],
"text": [
"Okay, I took a physiology class in college and I believe I know the correct info so I'm going to take a stab at this one.\n\nChewing your food helps with digestion in two main ways. First, when you first begin chewing your food, a signal is sent... | [] | [] | [
[]
] | ||
6dsk32 | urination/defecation with coma patients | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6dsk32/eli5_urinationdefecation_with_coma_patients/ | {
"a_id": [
"di564en"
],
"score": [
2
],
"text": [
"Catheter for urination, tube stitched into your body for fecal movement. Even with eating and nutrient intake, it is typically done through a tube, ending where necessary. "
]
} | [] | [] | [
[]
] | ||
3xit6s | why are higher values of money made with paper rather than coins, if coin money lasts longer? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3xit6s/eli5_why_are_higher_values_of_money_made_with/ | {
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"cy4zkj8",
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"score": [
11,
8,
2
],
"text": [
"Paper is cheaper to make and people don't like carrying coins around. In the US the Sacajawea dollar was tried for awhile a few years ago but never caught on because most people still preferred paper b... | [] | [] | [
[],
[],
[]
] | |
4l4831 | why were people in the past so concerned about stopping masturbation? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4l4831/eli5_why_were_people_in_the_past_so_concerned/ | {
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"text": [
... | [] | [] | [
[],
[],
[
"https://goo.gl/images/OdxE3S"
],
[],
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Diogenes#Obscenity"
],
[],
[
"http://www.vanityfair.com/news/2016/04/ted-cruz-texas-sex-toy-ban"
],
[],
[]
] | ||
30pdoi | why does my throat randomly make weird gargling sounds?? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/30pdoi/eli5why_does_my_throat_randomly_make_weird/ | {
"a_id": [
"cpujk3a",
"cpukh88",
"cpuled1",
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"score": [
9,
11,
3,
2
],
"text": [
"That's your inner demon. It can only be silenced by cleaning your room.",
"Short answer: Nobody knows.\n\nLong answer: The most likely explanation is gas escaping from your st... | [] | [] | [
[],
[],
[],
[]
] | ||
52oxip | what is dna sequencing? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/52oxip/eli5_what_is_dna_sequencing/ | {
"a_id": [
"d7m1tgj",
"d7m9se7"
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"score": [
6,
2
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"text": [
"DNA is made of a bunch of \"blocks\". There's not alot of blocks, so its the order of the blocks that determines what the DNA means. It's kind of like English where there's billions of words you can make, but not alot of let... | [] | [] | [
[],
[]
] | ||
2thq41 | why do many top female tennis players make long squealing noises during play? | OK I will get this out of the way. The noises they make in many cases sound very sexual. I don't mean enticing or arousing, but a little unsettling as if I am hearing something I shouldn't.
If this the female equivalent of the grunt of effort male players sometimes makes that seems weirdly gendered. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2thq41/eli5_why_do_many_top_female_tennis_players_make/ | {
"a_id": [
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"score": [
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"text": [
"Women have higher register voices than men. Their \"grunts\" are going to be higher pitched... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[]
] | |
2rkoy2 | how exactly can a video file be compressed. what makes one 1080p video different from another apart from frame rate? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2rkoy2/eli5_how_exactly_can_a_video_file_be_compressed/ | {
"a_id": [
"cngr7dw"
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"score": [
2
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"text": [
"Compression is taking a file, stripping out some of its elements and including instructions on how to fill them back in later. Compression algorithms can be lossy or lossless, where the former is possible to have some data lost and the latter cre... | [] | [] | [
[]
] | ||
2nc7z2 | why do comercial planes only calculate exactly how much fuel they add in instead of just filling it all the way up? | I thought of this as I was reading about the Gimli Glider. This would'nt have occured if they filled it all the way up. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2nc7z2/eli5why_do_comercial_planes_only_calculate/ | {
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2
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"text": [
"To carry anything you dont need is a waste. The extra weight of the fuel means that you will burn more fuel just to transport it. The math is tight, but they... | [] | [] | [
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Gimli_Glider"
]
] | |
1y6rpy | why does china defend north korea so often at the international level? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1y6rpy/why_does_china_defend_north_korea_so_often_at_the/ | {
"a_id": [
"cfhujtb",
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"cfhyo36",
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"cfi0k1z",
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"cfi1t9x",
"cfi2diu",
"cfi2l9f",
"c... | [] | [] | [
[],
[],
[],
[],
[],
[],
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[],
[
"http://www.washingtonpost.com/blogs/worldviews/wp/2013/02/12/why-china-still-supports-north-korea-in-six-little-words/"
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[],
[],
[],
[],
[
"http://www.mining.com/largest-known-rare-earth-deposit-discovered-in-north-korea-86139/",
"http://w... | ||
dicawg | during a rocket launch, why is there ice falling of the rocket? | Hey there,
so in movies like Apollo 13, when the rocket launches it is shown that ice shards (or something else?) falls off. Why is that?
Here's a youtube link to said scene. The ice shards are visible at 05:11
[_URL_0_](_URL_0_) | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dicawg/eli5_during_a_rocket_launch_why_is_there_ice/ | {
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"score": [
11,
9,
2,
2,
6,
2
],
"text": [
"There's no air in space so rockets must bring their own oxidizing agents.\n\nIn the Saturn V rocket this is liquid oxygen, which is -18... | [] | [
"https://www.youtube.com/watch?v=1-JdqHxqkHA"
] | [
[],
[],
[],
[],
[],
[]
] | |
tjlc2 | what causes rigor mortis? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/tjlc2/eli5_what_causes_rigor_mortis/ | {
"a_id": [
"c4n6fux"
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"score": [
13
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"text": [
"Muscles actualy need work to relax/extend by pumping calcium ions out of the cells and \"rewinding\" the fibers to default postition.\nLetting calcium ions in the cell again then in fact triggers the fibers to spring into flexed position.\n\nAft... | [] | [] | [
[]
] | ||
7rdd4f | how does a javelin rocket launcher track moving targets. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7rdd4f/eli5_how_does_a_javelin_rocket_launcher_track/ | {
"a_id": [
"dsw1vyz",
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2
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"text": [
" > How does a Javelin Rocket launcher track moving targets.\n\nIt has an automatic infrared guidance system which locks on to a heat signature and will adjust the two rear fins in order to steer it toward the target.",
... | [] | [] | [
[],
[]
] | ||
acdeni | do electrons move anywhere down the chain in ac? | I've got the idea of the current changing direction at 60 Hz. Do the electrons GO forward?
At my wall socket: on each iteration of the direction change do a bunch of electrons get dumped out-- or is it a forward flow of electrons despite the forward/back oscillation?
Any help is appreciated! I don't get how anythin... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/acdeni/eli5_do_electrons_move_anywhere_down_the_chain_in/ | {
"a_id": [
"ed73brx"
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"score": [
2
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"text": [
"The electrons are in the copper wire. When the current pushes forward it pushes electrons through the circuit. When it reverse direction it pulls them back in the other direction. \n\nDoes that answer your question? "
]
} | [] | [] | [
[]
] | |
aqycf4 | modern monetary theory | I'm trying to read up on it, but it is so laden with jargon that I can't get through more than a paragraph without having to do additional research. All the sites I've found that attempt to explain it seem to assume I must be an economist already.
I would love an explanation using layman's terms please. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aqycf4/eli5_modern_monetary_theory/ | {
"a_id": [
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"text": [
"I first heard about on the Planet Money podcast, it starts with a 10 year old asking the question and they explain it in pretty simple terms.\n\n_URL_0_",
"MMT theory reverses how most people think about government econo... | [] | [] | [
[
"https://itunes.apple.com/us/podcast/866-modern-monetary-theory/id290783428?i=1000420536330&mt=2"
],
[]
] | |
4g10ri | how is code organized and added on to for large video games? (e.g. halo, battlefield, etc.) | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4g10ri/eli5_how_is_code_organized_and_added_on_to_for/ | {
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25,
31,
2,
3
],
"text": [
"By any well run company into many different parts. The idea is that everything should be broken down into the simplest methods that they can be broken down into. Easy to test and... | [] | [] | [
[
"http://www.photonstorm.com/wp-content/uploads/2011/02/FGDT1-State.png"
],
[],
[],
[]
] | ||
pofg6 | why do some people have round eyes (white people, some africans, middle easterns) while others have slanted eyes (east asians, other africans, native americas). | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/pofg6/eli5_why_do_some_people_have_round_eyes_white/ | {
"a_id": [
"c3r3qiq"
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"score": [
3
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"text": [
"The structure that makes eyes appear \"slanted\" is the [epicanthic fold](_URL_0_). There is no particular \"reason\" that can answer your question of \"why,\" except that this was how this trait happened to develop in specific groups of populati... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Epicanthal_fold"
]
] | ||
3enheg | how is it that reddit was never able to turn a profit since it was founded? | From my basic understanding, an internet company like imgur would find it very difficult to turn a profit because they have to host so many images and that eats up a ton of bandwidth, but since Reddit doesn't actually host any of the user-submitted content, what are the expenses that have made Reddit unprofitable year ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3enheg/eli5_how_is_it_that_reddit_was_never_able_to_turn/ | {
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"Disclaimer: I don't have any special insight into Reddit's inner workings, just Google and a business degree.\n\n_URL_0_\n\nWhile imgur might handle all of Reddit's images, Reddit itself still needs t... | [] | [] | [
[
"http://expandedramblings.com/index.php/reddit-stats/"
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[],
[]
] | |
4de0yu | why does flash memory have a limited number of uses? and what happens when they run out? | Flash memory is supposed to have a limited number of write/erase cycles. What happens when they're all used up? Does its capacity start decreasing or does it stop working altogether?
Suppose I have an 8GB flash drive, and I transfer 4GB of music into it. Did I use up hundreds of cycles (one for each file) or just half... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4de0yu/eli5_why_does_flash_memory_have_a_limited_number/ | {
"a_id": [
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"text": [
"You used up exactly half a cycle. A cycle is basically considered as one write to a cell. Technically because you could write over the same cells multiple times without writing over other ones it doesn't work exactly like t... | [] | [] | [
[],
[]
] | |
2zq3tg | why do certain violent groups like isis receive more western military attention than other groups like boko haram? | I really am ignorant about this but I'm looking for an answer that's more sophisticated than just "because oil". | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2zq3tg/eli5_why_do_certain_violent_groups_like_isis/ | {
"a_id": [
"cpl90hj",
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"score": [
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"text": [
"ISIS is a major threat to the royal family of Saudi Arabia, who have been close strategic partners to the United States for a very long time. The upper class in Saudi Arabia lavishly enjoy many freedoms that are sacrilegious... | [] | [] | [
[],
[]
] | |
1r7xis | why when i view a movie/game do i think "the graphics/special effects can't ever look better than this; this looks like real life!" yet when i watch the same scene a year later it looks super fake? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1r7xis/eli5_why_when_i_view_a_moviegame_do_i_think_the/ | {
"a_id": [
"cdkh4a1"
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"score": [
2
],
"text": [
"Because graphics always improve, so the \"best\" from 2007 is not as good as the \"best\" from 2013, and once you're used to 2013 FX then you can see the flaws in 2007 FX."
]
} | [] | [] | [
[]
] | ||
8fytbv | why only certain people are kidney compatible | Mostly just why if someone needs a kidney only a few people can give it. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8fytbv/eli5_why_only_certain_people_are_kidney_compatible/ | {
"a_id": [
"dy7ijz1",
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"score": [
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"text": [
"You have to be a tissue match to donate any organ to someone. This just means that the cells in your body recognize and accept the new tissue cells, as opposed to treating them like a disease or infection that's gotten into ... | [] | [] | [
[],
[]
] | |
2p3u1i | why are reservoir dams always curved towards the lake? | I guess it has to do with stability, but why exactly? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2p3u1i/eli5_why_are_reservoir_dams_always_curved_towards/ | {
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"text": [
"The curve, much like a triangle or the supports under a bridge support the weight of the water pressing against the dam. try bending a stick and trying to press against the bend ... | [] | [] | [
[],
[],
[],
[]
] | |
lrom9 | the photoelectric effect and photovoltaic cells | I'm trying to give a presentation on solar power and its uses, and I have pretty much no scientific background so understanding any of it is difficult. Any help would be much appreciated, as would sources, as I'll need to cite some. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/lrom9/elif_the_photoelectric_effect_and_photovoltaic/ | {
"a_id": [
"c2v2knj",
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"score": [
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"text": [
"Photoelectric Effect: electrons are part of atoms. They're very, very small and move around the center of the atom, the nucleus. Because of the way electron energy works, it can be helpful to think of the electrons as being ... | [] | [] | [
[],
[]
] | |
2esber | what specifically happens when i get the "we took too long to make this page for you" error? | Thanks! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2esber/eli5_what_specifically_happens_when_i_get_the_we/ | {
"a_id": [
"ck2gidz"
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"The server is busy.\n\nReddit is essentially a series of servers, at least that's it's physical form, that each of us connects to. When the server space we are trying to access can't be accessed because of traffic, the overflow is sent to another... | [] | [] | [
[]
] | |
2x0pf1 | why don't game developers make games that gamers want? | My example would be Fallout 4 or half life 3 I see astronomical amounts of posts and other internet buzz asking if not begging Valve and Bethesda to create these titles and yet neither company even hints at the possibility. I guess the reason I'm wanting an explanation, would be that wouldn't creating these titles with... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2x0pf1/eli5why_dont_game_developers_make_games_that/ | {
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"What the internet says it wants and what will actually make money are very different things... | [] | [] | [
[],
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303zzx | why does drinking water hurt my mouth ulcer? | You'd think it would be totally neutral, but it always stings a little as I drink it.
Couldn't find anything in Google so I'd thought y'all might help me out. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/303zzx/eli5_why_does_drinking_water_hurt_my_mouth_ulcer/ | {
"a_id": [
"cpoyip9"
],
"score": [
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"text": [
"When I get mouth ulcers, I tend to drink lukewarm water and that doesn't hurt like a regular or cold water would do.\n\nIt also gives some soothing effect too."
]
} | [] | [] | [
[]
] | |
4alosa | what's the benefit of using a ceramic knife? | How's it different from using a metal knife? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4alosa/eli5whats_the_benefit_of_using_a_ceramic_knife/ | {
"a_id": [
"d11gyvk",
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"text": [
"- Ceramic can't rust\n- Ceramic is lighter than steel\n- Ceramic is slightly harder, which means a slightly keener edge, retained for several times longer\n\n- _URL_0_",
"In principle, a ceramic knife, being much harder ... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Ceramic_knife"
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] | |
65e4ta | how does hemoglobin carry oxygen? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/65e4ta/eli5_how_does_hemoglobin_carry_oxygen/ | {
"a_id": [
"dg9i7dd",
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"text": [
"dative bond between the iron ion in the haem group of the haemoglobin molecule and an electron pair from the O2 molecule",
"There is an iron atom in the hemoglobin at a point where it's grip on the oxygen atom (or one of... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Hemoglobin#/media/File:Hemoglobin_t-r_state_ani.gif"
]
] | ||
5kwc9a | why brains sometimes do the opposite of what you say or need to do | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5kwc9a/eli5_why_brains_sometimes_do_the_opposite_of_what/ | {
"a_id": [
"dbr3zzo"
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"score": [
2
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"text": [
"Saying \"I WILL bring\" to your brain is better than \"Don't forget to bring\". The brain seems to remember/listen to positivity more than the latter. Plus, the shorter the info, the better that it'll recall.\n\n* \"I will bring\"=3 words, 3 syll... | [] | [] | [
[]
] | |
2hexnc | why are we conditioned to hate things that are popular? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2hexnc/eli5_why_are_we_conditioned_to_hate_things_that/ | {
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"text": [
"I can say from my experience why so it's my opinion only. I like to watch anime. When one popular anime comes out and everyone is like \"OMG THIS IS SO GOOD\" so after a while I give it a shot but it's ... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Georg_Simmel"
]
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1opnbm | how do mountain climbers keep themselves clean on large expeditions (ie: mount everest) | Question popped into my mind, and I got curious :) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1opnbm/eli5_how_do_mountain_climbers_keep_themselves/ | {
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"text": [
"They don't really. Some bring baby wipes or something",
"Climbing say Everest, is a mammoth task. If you ever find yourself at base camp, you'll be more concerned with altitude... | [] | [] | [
[],
[],
[],
[]
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1c8jna | what determines how words or names translated into english are spelled the way they are? | Like how is "Japan" derived from "Nippon". Why is the name "Jarminder" spelled that way in english, etc. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1c8jna/eli5_what_determines_how_words_or_names/ | {
"a_id": [
"c9e2q2d"
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"score": [
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"text": [
"There are two different things going on here. There is a process called transliteration, which is how you take words with a different character set and \"translate\" the sounds across into your character set. For example, it's how Москва (in cy... | [] | [] | [
[]
] | |
7d17kp | why is it that the area of a sphere (4 pi r^2) and the area of a circle (pi r^2) differ by a factor of 4? | It seems really weird that it's such a normal number. Is there an intuitive explanation as to why this is the case? Is there an easy way to map four circles onto the surface area of a sphere of the same radius?
In before someone helpfully informs me that the proper terminology is the "area of a disc," and the "surfa... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7d17kp/eli5_why_is_it_that_the_area_of_a_sphere_4_pi_r2/ | {
"a_id": [
"dpu96ds",
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"score": [
9,
2,
2
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"text": [
"That the surface area of a sphere is four times the area of a circle of the same radius is \"coincidental\". 4pir^2 is the first derivative of the formula for the *volume* of a sphere: 4pir^3 / 3. Thi... | [] | [] | [
[],
[],
[]
] | |
5pj7wk | why did people in the late 1700's dress so exotically? | Watching the movie Amadeus, I realized everyones attire was so over-the-top compared to what people wear today. Why was this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5pj7wk/eli5why_did_people_in_the_late_1700s_dress_so/ | {
"a_id": [
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16,
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"text": [
"The events you see in Amadeus are roughly equivalent to what you would see at an exclusive Hollywood club today. They are not representative of what most people wore at the time.\n\nWhat more, most people in that movie rep... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/At_Home:_A_Short_History_of_Private_Life"
]
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4t971j | the effects of a growing child in space, from conception to puberty | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4t971j/eli5_the_effects_of_a_growing_child_in_space_from/ | {
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"text": [
"No one knows.\n\n\nWe can make some guesses, but fact is that we haven't mapped yet how much our bodies rely on gravity to form structures, to orient themsel... | [] | [] | [
[],
[],
[],
[],
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"https://www.youtube.com/watch?v=jTL_sJycQAA"
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j357e | [li5] can someone explain human migration to me | Specifically, having a look at [this.](_URL_0_) The Goths came from modern day Scandinavia, but when the hell did people migrate that far north in the first place? who were they? I had thought the flow of civilisation was northward, but appears not to be the case.
What was the first migration north, out of Africa? Was ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j357e/li5_can_someone_explain_human_migration_to_me/ | {
"a_id": [
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"text": [
"Someone will eventually give a better answer than this, but for now...\n\nAs i understand it the main driving force is that populations grow. \n\nTribe A lives in Valley X.\n\nTribe A after a couple generations is a lot bigger. Too many for Vall... | [] | [
"http://upload.wikimedia.org/wikipedia/commons/2/2d/Invasions_of_the_Roman_Empire_1.png"
] | [
[]
] | |
21fu1l | what does the northwestern athletes obtaining the right to unionize do? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/21fu1l/eli5_what_does_the_northwestern_athletes/ | {
"a_id": [
"cgcmmos"
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"text": [
"The same thing all unionizing efforts seek: increased bargaining power. \n\nExample: \n\nNon-union - QB wants less practice time during the weekends so he can study more. Coach disagrees, he is removed from the team and backup QB takes his place.... | [] | [] | [
[]
] | ||
1jp89i | what is the purpose of graffiti "tags"? is there some sort of cred system? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1jp89i/what_is_the_purpose_of_graffiti_tags_is_there/ | {
"a_id": [
"cbgwx5k",
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"score": [
3,
2
],
"text": [
"[Watch this movie.](_URL_0_)",
"From what I know, tagging is like one group's way of claiming a territory or a spot. And when a rival group crosses it out, and tags their own graffitti then its a sign of disrespect . "
... | [] | [] | [
[
"http://www.imdb.com/title/tt0084904/"
],
[]
] | ||
6i0qih | how come whenever slow-motion replays are shown in sports, the scoreboard appears to be flickering? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6i0qih/eli5_how_come_whenever_slowmotion_replays_are/ | {
"a_id": [
"dj2lf3m",
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"score": [
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"text": [
"When you are looking at a screen (computer, phone, tv etc..) you aren't looking at something real like when you are looking at a football player. The screen is redrawing itself over and over so fast that you see it as a thi... | [] | [] | [
[],
[]
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1revkv | why does ancient structures like the old roman roads are still in pretty good shape hundreds if not thousand of years after their construction, yet modern structures are already breaking up only decades after they were made? | For example, a bridge in Montreal is barely standing yet is only 51 years old, but the Coliseum is many times that and still standing (ok except that big part we never restored).
I know use is part of the answer, but surely there's more to that? Modern structures should be better made than old ones after all!
EDIT: T... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1revkv/eli5_why_does_ancient_structures_like_the_old/ | {
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"text": [
"Roman Concrete didn't have iron or steel bars running through it. The iron or steel bars add strength to the concrete, but if it's not constantly cared for ... | [] | [] | [
[],
[],
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[],
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"http://en.wikipedia.org/wiki/Colosseum#Modern",
"http://en.wikipedia.org/wiki/Aula_Palatina",
"http://en.wikipedia.org/wiki/Hagia_sophia"
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] | |
3thklq | why do we put flowers on a grave? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3thklq/eli5_why_do_we_put_flowers_on_a_grave/ | {
"a_id": [
"cx68pwm"
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"score": [
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"text": [
"The tradition is so old that no one knows how it started.\n\nTheories include (1) flowers are simply nice; (2) cut flowers symbolize mortality because they are beautiful yet, having been cut, are already dying; (3) some idea that spirits may like... | [] | [] | [
[]
] | ||
auo3xa | does our food dna affect our dna? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/auo3xa/eli5_does_our_food_dna_affect_our_dna/ | {
"a_id": [
"eh9brmk",
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"score": [
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"text": [
"It doesn't, not directly at least. The DNA of the food we eat has no direct effect on the DNA in our cells. It sounds like you have some idea about how these two things should interact. Would you care t... | [] | [] | [
[],
[],
[]
] | ||
654x0b | if the cells in our body get replaced regularly, why does our hearing and eyesight not get repaired? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/654x0b/eli5_if_the_cells_in_our_body_get_replaced/ | {
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11,
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"https://www.reddit.com/r/askscience/comments/2n8p6a/why_cant_our_bodies_heal_certain_injuries_nerve/cmbv7uy/",
"https://askabiologist.asu.edu/regeneration",
"https://www.ted.com/talks/sandrine_thuret_you_can_grow_new_brain_cells_here_s_how/transcript?language... | ||
55gihu | what limits creature size here on earth? | Why is it that we seem to have stopped at the blue whale? Is it possible that larger creatures could exist? How much larger? Would they have to be sea creatures?
Also, If we stretched the rules a little bit, what is the largest a creature could be here on earth? (Land or sea). | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/55gihu/eli5_what_limits_creature_size_here_on_earth/ | {
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"Hypothetically, there is nothing stopping anything larger than the blue whale from ex... | [] | [] | [
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5vg9wd | how can the smallest parts of the bits that make up atoms be made up of... nothing? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5vg9wd/eli5_how_can_the_smallest_parts_of_the_bits_that/ | {
"a_id": [
"de1vzhv"
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"score": [
4
],
"text": [
"they aren't made up of nothing. there just isn't any smaller parts you can break them up into. \n\nso atoms are made of electrons, protons, and neutrons, right?\n\nelectrons are elementary particles. you can't break an electron into anything smal... | [] | [] | [
[]
] | ||
26f3sk | how come i can put on someone's prescription glasses and, while it's blurry at first, i can focus, but they can't just focus their eyes without glasses? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/26f3sk/eli5how_come_i_can_put_on_someones_prescription/ | {
"a_id": [
"chqfzqo",
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"score": [
2,
2
],
"text": [
"Perhaps you have more flexible focus. I guarantee you, though, if you put on my glasses you wouldn't be able to see a thing. It sounds like you experimented with glasses that have a fairly weak prescription.",
"You can t... | [] | [] | [
[],
[]
] | ||
2ttugm | if it's so difficult to cool things down in space, how do satellites and the iss not overheat from sunlight? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2ttugm/eli5_if_its_so_difficult_to_cool_things_down_in/ | {
"a_id": [
"co29cfr",
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25,
2,
16
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"text": [
"Most surfaces are painted white or coated in reflective material to reduce absorption of sunlight.\nThere may also be areas painted black that face away from the sun that radiate heat.\n\nWhite absorb... | [] | [] | [
[],
[],
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] | ||
c5zz4f | how are mobile check deposits accepted by banks if they never even get to see them up close? | I always deposit my checks and the money is usually available the next day, sometimes even the same day. But, what protects these companies from fraud? How do they know the check isn’t a fake? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c5zz4f/eli5_how_are_mobile_check_deposits_accepted_by/ | {
"a_id": [
"es58lpk"
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"score": [
2
],
"text": [
"Essentially they use an ACH system to “cash” the check before you are given the money. \n\nIf the check were fraudulent they would know before it is fully deposited into your account."
]
} | [] | [] | [
[]
] | |
6dnbpv | why is it an "exclamation point" and a "question mark?" | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6dnbpv/eli5_why_is_it_an_exclamation_point_and_a/ | {
"a_id": [
"di3y66s"
],
"score": [
11
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"text": [
"It *is* [exclamation mark](_URL_0_). Depending on where you live.\n\nAnd the question mark is also known as an [interrogation point](_URL_1_) although that is a less common thing to call it."
]
} | [] | [] | [
[
"https://en.wikipedia.org/wiki/Exclamation_mark",
"https://en.wikipedia.org/wiki/Question_mark"
]
] | ||
4f7qeu | anti-gravity flights? | Do they just fall in a way that balances out the force caused by gravity? And if so, how do they maintain that so safely? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4f7qeu/eli5_antigravity_flights/ | {
"a_id": [
"d26jwjw",
"d26k5or",
"d26kifv",
"d26klna",
"d26ktez"
],
"score": [
2,
3,
3,
3,
5
],
"text": [
"The plane flies to about 34,000 feet and then puts the nose down to a 30^o angle. This simulates zero gravity because you're falling as fast as gravity is pul... | [] | [] | [
[
"http://s.hswstatic.com/gif/zero-g-4.jpg"
],
[],
[],
[],
[
"https://www.youtube.com/watch?v=bMrX014HTgU"
]
] | |
5ddd2v | why do we wave our hands when we say goodbye? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ddd2v/eli5_why_do_we_wave_our_hands_when_we_say_goodbye/ | {
"a_id": [
"da3osu0",
"da3sqb8"
],
"score": [
3,
8
],
"text": [
"As I understand it people used to wave 'backwards' moving their had towards themselves indicating they wanted the person to come back. From there it just sort of devolved.",
"Explanation through argumentation:\n\nDescrib... | [] | [] | [
[],
[]
] | ||
3lvp0z | why can't climbers parachute down mt. everest after climbing it? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3lvp0z/eli5_why_cant_climbers_parachute_down_mt_everest/ | {
"a_id": [
"cv9p2it",
"cv9p2ww"
],
"score": [
3,
3
],
"text": [
"I imagine turbulent winds make it impossible. Imagine being blown into sharp icy cliffs. That's a wrap on the rest of the trip right there.",
"Someone hang-glided down a year or so ago. \n\nIt was an extremely dangerous ... | [] | [] | [
[],
[]
] |
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