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4jsnte
why is a root canal preferable over say an extraction/implant?
[This video](_URL_0_) shows the root canal procedure and it seems like at most 50% of the actual tooth remains after drilling the internal tooth/roots and making room for the crown. Why is this preferable over just extracting the tooth and replacing it with an implant?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4jsnte/eli5_why_is_a_root_canal_preferable_over_say_an/
{ "a_id": [ "d397qvk", "d39bbpo" ], "score": [ 2, 2 ], "text": [ "Root canal or implants are not the only options. There's also the \"old way\", extraction and a dental appliance (dentures). The emphasis on keeping all your teeth is relatively new - in past times, dentists had no compuncti...
[]
[ "https://www.youtube.com/watch?v=2SwgxFLuNQs" ]
[ [], [] ]
eznb9x
how do insurance companies like geico, progressive, etc. have so much money to spend on ads?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/eznb9x/eli5_how_do_insurance_companies_like_geico/
{ "a_id": [ "fgodny6" ], "score": [ 5 ], "text": [ "There are roughly 265 million vehicles on the road in the US. Roughly 87% of those vehicles are insured. That leaves you with about 230 million vehicles insured in the US. \n\nThere are approximately 6 million car wrecks a year in the US. I'm ass...
[]
[]
[ [] ]
axi301
why are sit-ups harder to do with your hands behind your head, rather then free?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/axi301/eli5_why_are_situps_harder_to_do_with_your_hands/
{ "a_id": [ "ehtqavd" ], "score": [ 7 ], "text": [ "Have you ever looked at a teeter-totter before? If one person on the teeter-totter is sitting at the very end and person on other side is sitting closer to the middle, then there's an imbalance and that imbalance spreads outward from the middle,...
[]
[]
[ [] ]
fslx3t
why is quarantining for a few weeks so effective? wouldn't it just start spreading just as bad as soon as the quarantine ends?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fslx3t/eli5_why_is_quarantining_for_a_few_weeks_so/
{ "a_id": [ "fm2523o", "fm25b0w", "fm25l3g", "fm284l0", "fm29dza" ], "score": [ 2, 4, 4, 3, 2 ], "text": [ "That's why quarantine may not only be a few weeks. It's hard for people to gage how long it will take for this to pass because what started as a few weeks cou...
[]
[]
[ [], [], [], [], [] ]
650x5b
why does it feel like there's less viruses on the internet nowadays?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/650x5b/eli5_why_does_it_feel_like_theres_less_viruses_on/
{ "a_id": [ "dg6jk69", "dg6jo57" ], "score": [ 2, 5 ], "text": [ "Anti-malware is better than it's ever been, and malware is better at hiding than it's ever been.", "*Fewer\n\nAnd the purpose of viruses has shifted from being some piece of code that just fucks your system up, to being ...
[]
[]
[ [], [] ]
22vqst
why do boxers get paid so much?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/22vqst/eli5_why_do_boxers_get_paid_so_much/
{ "a_id": [ "cgque09" ], "score": [ 2 ], "text": [ "If anything, why do athletes get paid so much? " ] }
[]
[]
[ [] ]
2l6o1g
why do musicians (famous and average) choose to publish music through record label companies, as opposed to going to pandora/spotify/itunes radio/all the others directly?
Also, what do music record labels do that require so much of the profit? I understand why relatively un-famous musicians need help with marketing/distribution of their music, but for famous people, they already have a huge fan base to get the word out. It seems like streaming service companies are whining because it ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2l6o1g/eli5_why_do_musicians_famous_and_average_choose/
{ "a_id": [ "clrxz2s" ], "score": [ 4 ], "text": [ "For a lot of musicians, it's still easier to let someone else handle all of the details of dealing with distribution, marketing, and production. And since record labels have been doing this for a long time, they tend to have the resources to han...
[]
[]
[ [] ]
3ig8cs
is there a way commercial banks are creating their own money (digital or paper) without anyone knowing?
edit: what i mean is, with the advent of digital banking. can the bank create an account that belongs to no one, say some sum of money was deposited, lend that money that only exists digitally out and then collect it as money from a real person
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3ig8cs/eli5_is_there_a_way_commercial_banks_are_creating/
{ "a_id": [ "cug497p" ], "score": [ 2 ], "text": [ "Okay, this is going to be complicated, but bear with me. \n\nEconomists have names for different types of money. M0 is the sum of all the dollars bills and coins printed by the treasury. Banks do not increase the M0 supply. \n\nBut there are seve...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Fractional-reserve_banking#Example_of_deposit_multiplication", "https://en.wikipedia.org/wiki/Money_supply#Empirical_measures_in_the_United_States_Federal_Reserve_System", "http://www.federalreserve.gov/monetarypolicy/reservereq.htm" ] ]
f0xcdo
what causes eyes to get fatigued from reading for too long?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/f0xcdo/eli5_what_causes_eyes_to_get_fatigued_from/
{ "a_id": [ "fgzolv6" ], "score": [ 3 ], "text": [ "We actually have muscles in our eyes. These muscles constrict and relax to change the shape of the lens, which is how our eyes focus. Reading or looking at a screen for long periods of time requires these muscles to hold themselves in specific po...
[]
[]
[ [] ]
7itd15
what does it mean to have something notarized?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7itd15/eli5_what_does_it_mean_to_have_something_notarized/
{ "a_id": [ "dr19myq", "dr1gqj6", "dr1jnk9" ], "score": [ 7, 6, 2 ], "text": [ "A document that's been notarized has been approved by an a neutral and trusted public official called a notary public. Basically it means the notary witnesses and confirms the identity of the person or ...
[]
[]
[ [], [], [] ]
4s3an9
if we created a magnet that was say 1 inch in diameter and was a kilometer long, is it possible we can create monopoles on each end (north side doesnt connect to south side)
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4s3an9/eli5_if_we_created_a_magnet_that_was_say_1_inch/
{ "a_id": [ "d565m3b" ], "score": [ 2 ], "text": [ "by definition, no.\n\nevery north and south side of the magnet will connect. If the magnet is 1 long magnet of uniform orientation, than thats what it will be.\n\nIf you force opposite poles together, or separate magnets with a non magnet filler...
[]
[]
[ [] ]
8bi2av
how can the bootes void, or the great void as it is sometimes called, be filled with stars and galaxies and still be called a void?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8bi2av/eli5_how_can_the_bootes_void_or_the_great_void_as/
{ "a_id": [ "dx6u1y6" ], "score": [ 8 ], "text": [ "Because our definition of \"void\" (in regards to space) is not just _URL_0_ just means less than average density of matter compared to the rest of the observable universe." ] }
[]
[]
[ [ "empty.It" ] ]
3xarf8
why don't more companies collaborate on everything?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3xarf8/eli5_why_dont_more_companies_collaborate_on/
{ "a_id": [ "cy309lp", "cy36hmx" ], "score": [ 2, 2 ], "text": [ "Because if there is no competition, your company doesn't have the chance to win more money than the rest. It's like the prisoner's dilemma:\n\n _URL_0_", "A company is a group of *people*, and each *person* is competing ...
[]
[]
[ [ "https://youtu.be/t9Lo2fgxWHw" ], [] ]
l9hhd
- could someone explain to me the ethical theories of plato, aristotle, kant and mill by giving examples?
For example how would they respond to this moral dilemma: Should Batman kill the Joker?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/l9hhd/eli5_could_someone_explain_to_me_the_ethical/
{ "a_id": [ "c2qv4kq", "c2qw4ei", "c2qv4kq", "c2qw4ei" ], "score": [ 15, 9, 15, 9 ], "text": [ "Plato: The well-being of the soul *(\"eudaimon\")* is the highest goal of thought and action. This is achieved when each member of society commits to his *ergon*, his natural dut...
[]
[]
[ [], [], [], [] ]
bcvnd2
how do rocks (track ballast) able to support a train?
Wouldn't these large size gravel shift when load is on top? How do, essentially, rocks support a train on its rails & sleepers?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bcvnd2/eli5_how_do_rocks_track_ballast_able_to_support_a/
{ "a_id": [ "ektwhqd", "eku3bsw", "ekugzzd" ], "score": [ 10, 3, 2 ], "text": [ "1) I assume the gravel is compressed when it is installed, e.g. with a heavy roller and/or a vibrating plate, so that if it's going to move down and fill a hole then it does that while it's being insta...
[]
[]
[ [], [], [] ]
ed1ymk
why are most houses that were made recently so ugly?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ed1ymk/eli5_why_are_most_houses_that_were_made_recently/
{ "a_id": [ "fbf4zdz" ], "score": [ 2 ], "text": [ "The first reason is survivorship bias. There were tons of ugly buildings in the 50s. For example [Nissen huts](_URL_0_) were a cheep and fast way to build and ugly ass garage or barn and were very popular until the 60-70's. You don't see many to...
[]
[]
[ [ "https://www.google.com/search?q=Nissen+hut&rlz=1CASHAN_enUS865&sxsrf=ACYBGNRMt6gzDLL8lyiue4UcRZYFyAoqFw:1576801291244&source=lnms&tbm=isch&sa=X&ved=2ahUKEwii8OHG-sLmAhVoh-AKHV7jB58Q_AUoAXoECBUQAw&biw=1366&bih=665" ] ]
2ntw4c
what would happen if an illegal immigrant claimed that she had always lived in that country and had simply lost her id? even if they didn't believe her, what country would they deport her to if they didn't know? and if she had no money, would they just keep her locked up forever?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2ntw4c/eli5_what_would_happen_if_an_illegal_immigrant/
{ "a_id": [ "cmgtwkn", "cmguu6o", "cmgvrcl" ], "score": [ 3, 4, 5 ], "text": [ "If she has an id she is in a computer somewhere. They would look it up ,then they would ask questions, then serve warrants.she'd spend time in jail or an immigration center till we decided what to do wi...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Benjaman_Kyle" ], [] ]
2107o5
why do i have an explosive bowel movement very shortly after eating indian food? it can't be getting through the gi tract that fast, right?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2107o5/eli5_why_do_i_have_an_explosive_bowel_movement/
{ "a_id": [ "cg8cutw", "cg8kclb" ], "score": [ 4, 3 ], "text": [ "Many GI reactions are due to something simply being in the tract. When you eat some exotic food, your body may react to the unusual foods and spices regardless of where the food is in the digestive process.", "It is beca...
[]
[]
[ [], [] ]
21i1qi
motherboard types
What is the difference between the following motherboards? AMD AM3/AM3+ AMD FM2/FM2+ and the Intel series of Sockets? These are Socket 1150, 1155 and 2011 Why do brands like ASUS and Gigabyte sell Intel and AMD Motherboards? I don't understand this?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/21i1qi/eli5_motherboard_types/
{ "a_id": [ "cgd7abk", "cgd7ixz" ], "score": [ 3, 2 ], "text": [ "It's basically just that each type of CPU needs a different motherboard, hence all the different kinds. Some boards also have different features, such as integrated graphics.", "[Maybe this should help..](_URL_0_)" ] }
[]
[]
[ [], [ "http://www.makeuseof.com/tag/cpu-socket-types-explained-from-socket-5-to-bga-makeuseof-explains/" ] ]
8azn1x
does epidural anaesthetic during childbirth inhibit uterine contractions
Epidural anaesthetic is just local anaesthetic in the epidural space right? But when the dentist gives you local you lose motor control of your lip as well? Does this happen with epidurals too? If so how do they stimulate contractions?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8azn1x/eli5_does_epidural_anaesthetic_during_childbirth/
{ "a_id": [ "dx2smsu" ], "score": [ 4 ], "text": [ "Epidurals for child birth generally are analgesic, not anesthetic. \nAn analgesic is something that blocks pain (at the doses typically used for labor it isn't always 100% effective at that, but it definitely knocks it WAY down in terms of sever...
[]
[]
[ [] ]
a017i3
why do shoes/tires have better grip with less surface area touching the ground?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/a017i3/eli5_why_do_shoestires_have_better_grip_with_less/
{ "a_id": [ "eadnuc0", "eadpvb8", "eadqegk" ], "score": [ 2, 8, 7 ], "text": [ "Since you (or your car) have a constant weight, smaller area means more force per unit area. Uniform large surfaces don't give water, snow, whatever, an easy path to escape from under you, which can al...
[]
[]
[ [], [], [] ]
8pzvgm
why do wood pigeons hoot in the same melodic pattern?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8pzvgm/eli5_why_do_wood_pigeons_hoot_in_the_same_melodic/
{ "a_id": [ "e0fqkn8" ], "score": [ 3 ], "text": [ "Many bird species have a very specific call that they all do. This is how they recognize fellow members of the same species at a distance" ] }
[]
[]
[ [] ]
dqxxd5
what is the process of a catholic confession, from walking through the church doors, to walking out afterwards?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/dqxxd5/eli5_what_is_the_process_of_a_catholic_confession/
{ "a_id": [ "f6bfmm9" ], "score": [ 7 ], "text": [ "when I was younger the confessionals were located in the back of my church. There was certain times that the priest held confession. The confessional was a booth separated by a screen you could do it anonymously or looking at the priest. I don...
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[]
[ [] ]
20ltvh
- how does someone get into whiskey/bourbons and able to pick up tastes?
Been a beer connoisseur for a while and have trained my palette to pick up many minute flavors. I really like anything aged in bourbon barrels but just can't get into picking up those flavors in the bourbon straight. All I get is heat when I sip. How can I get into bourbon and broaden my horizons. Thanks.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/20ltvh/eli5_how_does_someone_get_into_whiskeybourbons/
{ "a_id": [ "cg4icsm" ], "score": [ 2 ], "text": [ "Just like in beer, it takes training. You have to try a lot of different types and compare notes.\n\nIt helps to find one or two you really like, drink them a bit to become very familiar with them, then compare others to your \"base\"." ] }
[]
[]
[ [] ]
9gdjw2
why was half life 2 considered such a milestone in gaming?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9gdjw2/eli5_why_was_half_life_2_considered_such_a/
{ "a_id": [ "e63bais", "e63cs1c", "e63dtbo", "e63eoc2", "e63er30", "e63esnw", "e63evz8", "e63fnsv", "e63fp8e", "e63g469", "e63g4dc", "e63g4dk", "e63gasx", "e63gf6i", "e63ghjs", "e63h76p" ], "score": [ 230, 281, 105, 6, 30, 17,...
[]
[]
[ [], [ "https://youtu.be/9j8jb21bo_k?list=PLpmG2JGHItwmcpN8nID6mtbCJGIac6lqt&t=379", "https://www.youtube.com/watch?v=6Kxy0Rd9EIA", "https://youtu.be/CMoB6Xg7XsE?t=11" ], [], [ "https://www.youtube.com/watch?v=GjDY3m1SMpw" ], [], [], [], [ "https://youtu.be/bp5vOgz8vyI?t=751...
4ks3fx
can hard liquors ever go bad?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4ks3fx/eli5_can_hard_liquors_ever_go_bad/
{ "a_id": [ "d3hd4ou", "d3hi14u", "d3hm5d6" ], "score": [ 15, 14, 4 ], "text": [ "Hard liquor such as vodka have near limitless shelf lives when unopened, however, once the seal is broken and the liquor has been exposed to the air it will only last around 6-8 months", "Whisky i...
[]
[]
[ [], [], [] ]
cwyuam
what is piezo-electricity and what are its uses ??
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/cwyuam/eli5_what_is_piezoelectricity_and_what_are_its/
{ "a_id": [ "eygpb6p", "eygr0x0", "eyj9j8e" ], "score": [ 7, 3, 2 ], "text": [ "Piezoelectricity is an effect found in some solid materials that causes a charge to build up when it's under stress (an applied force). This relationship makes possible to use electricity to cause defor...
[]
[]
[ [], [], [ "https://www.explainthatstuff.com/quartzclockwatch.html", "https://en.wikipedia.org/wiki/Crystal_oscillator", "https://gfycat.com/alienatedremarkablebluefintuna", "https://dosits.org/galleries/technology-gallery/basic-technology/hydrophonereceiver/" ] ]
4h6e25
what is a css subreddit?
And what exactly is its purpose?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4h6e25/eli5_what_is_a_css_subreddit/
{ "a_id": [ "d2ns334", "d2nwuvb" ], "score": [ 5, 3 ], "text": [ "CSS is cascading style sheets. Basically it enables admins of specific subreddits to create a look and potentially change some functionality (like removing downvote buttons) to help enforce the feel of the sub.", "\"CSS ...
[]
[]
[ [], [] ]
1xy5hf
in what way is the unionization of european states similar than or different from the unionization of early states and territories of the us?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1xy5hf/eli5_in_what_way_is_the_unionization_of_european/
{ "a_id": [ "cffnqoi", "cffns74" ], "score": [ 3, 2 ], "text": [ "Different. They're not forming a federal government with explicit foreign affairs and military \"supremacy\" over the individual states. That is, local militaries are not being disbanded, and individual nations within the EU...
[]
[]
[ [], [] ]
af7t5c
why are salty and fatty foods the tastiest things to eat when your drunk.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/af7t5c/eli5_why_are_salty_and_fatty_foods_the_tastiest/
{ "a_id": [ "edw7w1c", "edwko40" ], "score": [ 28, 3 ], "text": [ "They're always the tastiest, but when you're drunk the voice in your head that would usually say \"no that's bad for you\" just says HUNGRY", "You crave salty things because the alcohol is causing you to dehydrate. The ...
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[]
[ [], [] ]
3h4kl7
why are some words considered more offensive/rude than others, despite meaning a very similar or even the exact same thing? i'm referring to swear words mainly.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3h4kl7/eli5_why_are_some_words_considered_more/
{ "a_id": [ "cu45kwl" ], "score": [ 2 ], "text": [ "Similar question has been asked more than once today. It's weird.\n\nAll languages have curse or swear words; words used to describe acts, ideas, or concepts that are considered taboo by the culture that uses said language. These can vary widely ...
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[]
[ [] ]
28zou3
why is it that i wake up right before the good parts
When ever I have an amazing dream, and I am either about to have sex, or jump off a plane, I always wake up right as I am about to do it. I don't just wake up normal and tired, I wake up just as if I'm a actually going to do that action, whether it with a boner or with my heart pumping as i get ready to skydive. What c...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/28zou3/eli5_why_is_it_that_i_wake_up_right_before_the/
{ "a_id": [ "cig2x11", "cig7i9d" ], "score": [ 2, 2 ], "text": [ "I remember reading that the \"good\" part gets you excited and that excitement is what may contribute to you waking up.", "I believe it has something to do with your brain not being able to create something it has never ...
[]
[]
[ [], [] ]
2sinku
why do patents expire?
I know it's probably a stupid question, but I'm wondering.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2sinku/eli5_why_do_patents_expire/
{ "a_id": [ "cnpsba5", "cnpsnp5", "cnpsxav", "cnpumra" ], "score": [ 3, 2, 2, 2 ], "text": [ "So that a patented device or technique or medicine cannot remain proprietary forever. This is important because it would then allow for people to later build upon whatever was prev...
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[]
[ [], [], [], [] ]
3d3wjf
how did internet explorer and chrome end up so different?
I'm not an IT person, but I find IE awkward, while Chrome is smooth and more user-friendly. And there is a general loathing towards IE, from what I've seen. Presumably though, both groups tried to make them the best offering possible. How did they end up being so different?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3d3wjf/eli5_how_did_internet_explorer_and_chrome_end_up/
{ "a_id": [ "ct1jtm5" ], "score": [ 4 ], "text": [ "Internet Explorer has a lot more history than Chrome has.\n\nIn the mid-late 90's, Microsoft had managed to tie in business deals with a lot of PC manufacturers, governments, schools, and so on to make Windows the default operating system on some...
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[ [] ]
mzhdg
why do you need to apply pressure to bullet wounds?
Doctors say it. People in movies say it. Why is it?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/mzhdg/eli5_why_do_you_need_to_apply_pressure_to_bullet/
{ "a_id": [ "c3534mp", "c3534mp" ], "score": [ 10, 10 ], "text": [ "pressure slows the bleeding and helps promote clotting. \n\nEither that or they are afraid the bullet will shoot back out of the wound and kill someone else.", "pressure slows the bleeding and helps promote clotting. ...
[]
[]
[ [], [] ]
2hxmcd
how were large purchases made in gold coins during the middle ages? i.e. 2 million gold pieces?
Seems like a lot of weight in metal to be hauling around.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2hxmcd/eli5_how_were_large_purchases_made_in_gold_coins/
{ "a_id": [ "ckwxuk1", "ckwxvyv", "ckwxx79" ], "score": [ 2, 2, 4 ], "text": [ "It wasn't. A couple chest of gold could buy whole states", "For large purchases you'd have gold in a bank, you'd then get a bank note (precursor to modern money) for the amount in question, you'd gi...
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[]
[ [], [], [] ]
11w8h4
what exactly happens when you see a beam of light?
Sorry if you guys think this is a dumb question, but I'm really curious. Isn't light supposed to travel straight? Isn't light supposed to reach your eyes for you to see something? How is light supposed to reach your eyes if it travels straight in a direction away from you?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/11w8h4/what_exactly_happens_when_you_see_a_beam_of_light/
{ "a_id": [ "c6q4h99" ], "score": [ 7 ], "text": [ "The space between the light source, and whatever it is being shone upon is not empty. In fact, it's got lots and lots of stuff bouncing around in it. Light is hitting those things and bouncing off them in not-quite-random directions. Dust mote...
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[ [] ]
4a9nzr
why isn't the board game go as popular or mainstream around the world as.chess?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4a9nzr/eli5_why_isnt_the_board_game_go_as_popular_or/
{ "a_id": [ "d0yihxz", "d0ykfqm" ], "score": [ 6, 8 ], "text": [ "Partly the game isn't popular because not enough people play it. Without opponents, you don't practice. Without practice, you don't get better. And if you suck, the game is no fun. \n\nI own a board, and have taught a few fr...
[]
[]
[ [], [] ]
2zyp6i
when muslims want sharia, what does that mean? does it mean that everyone, even non muslims should abide by those rules as well?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2zyp6i/eli5_when_muslims_want_sharia_what_does_that_mean/
{ "a_id": [ "cpnhx1t", "cpnibkk" ], "score": [ 6, 3 ], "text": [ "Yes, that's what it means.\n\nChristians and Jews are specifically given the right to pay a tax, so long as they demonstrate that they are subservient to Islamic authorities, and are exempt from some of the prohibitions impo...
[]
[]
[ [], [] ]
18s9ft
why doesn't earth spiral closer and closer to the sun due to the sun's gravity?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/18s9ft/why_doesnt_earth_spiral_closer_and_closer_to_the/
{ "a_id": [ "c8hif1x", "c8hllo5", "c8hnnnu" ], "score": [ 10, 3, 2 ], "text": [ "Because the Earth has enough velocity (that is, kinetic energy) to keep from falling into the sun. \n\n**WARNING: BUCKET ON A STRING ANALOGY APPROACHETH**\n\nSo you've got your bucket on a string, sw...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Gravitational_wave#Orbital_decay_from_gravitational_radiation" ], [ "http://en.wikipedia.org/wiki/Space_elevator", "http://i.imgur.com/PoIFZrc.gif" ] ]
6r5m3g
why are humans not tired anymore shortly after contact with water on their bodies, for example in the shower after waking up in the morning or splashing water in their faces?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6r5m3g/eli5_why_are_humans_not_tired_anymore_shortly/
{ "a_id": [ "dl2hb21" ], "score": [ 3 ], "text": [ "It's an instinct thing. Our body's associate water on our face with one of two immediate hazards. One rain and foul weather. And two being in a large body of water and being at risk of drowning. Our body places priority on not dying and thus we a...
[]
[]
[ [] ]
30xc0l
if i play sports that are challenging for my joints, will they get stronger from the work out, or will they get bad (especially if pain shows up when i get older)?
Thanks!
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/30xc0l/eli5_if_i_play_sports_that_are_challenging_for_my/
{ "a_id": [ "cpwn0ak", "cpwn34c", "cpwrhpe" ], "score": [ 2, 2, 3 ], "text": [ "I don't know of an overall answer, or if it's different for different sports, but my wife rowed crew in college, and the first day the coach told everyone, \"This sport is going to ruin your knees.\"", ...
[]
[]
[ [], [], [] ]
5t276f
how do the autonomous regions of spain work in relation to the national government?
I am specifically interested in the Basque region. I know that they have their own parliament and even their own police force, but I am having trouble grasping how this works in relation to Spain's monarchy. Is it like the states and the federal government? Are there national laws and then regional laws or do regions d...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5t276f/eli5_how_do_the_autonomous_regions_of_spain_work/
{ "a_id": [ "ddjs3l8", "ddk4mfn" ], "score": [ 2, 2 ], "text": [ "It is similar to states, in that autonomous regions can enact their own laws if those laws mesh with national laws.\n\nSpain's monarchy doesnt matter much, as it is primarily lead by a Prime Minister (not the King).\n\nAll a...
[]
[]
[ [], [] ]
dc78n7
"eli5" how is the flame shaped behind a rocket.
how is it that when the flaming gas comes out of the exhaust, narrows down in the beginning and then after a bit it becomes wider and the goes back down to be narrow again? & #x200B; I draw a few lines, in the screenshot, I got to show what I mean. & #x200B; [_URL_0_](_URL_0_)
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/dc78n7/eli5_eli5_how_is_the_flame_shaped_behind_a_rocket/
{ "a_id": [ "f26dwpn", "f26e63t" ], "score": [ 10, 3 ], "text": [ "These cones are commonly called shock diamonds and is present in all jet engines not only rocket engines. A jet engines nozzle is designed to output an exhaust at a specific velocity and pressure. Ideally the pressure would...
[]
[ "https://imgur.com/SrYAq2d" ]
[ [], [] ]
bbkmkh
why would a beverage have both sucrose and sucralose in it?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bbkmkh/eli5why_would_a_beverage_have_both_sucrose_and/
{ "a_id": [ "ekjfnwl" ], "score": [ 2 ], "text": [ "It's likely related to the well-known \"sugar tax\" being levied by various governments, US included. Drinks with sugar levels above a certain limit are subject to additional taxation.\n\nRemoval of X% sugar, and replacement with sucralose, will ...
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[]
[ [] ]
281qxt
does marijuana have side-effects/withdrawal symptoms like controlled-substance medications such as xanax? if not, why is the latter available legally in every state (with prescription)?
I'm not an expert, but it seems like Xanax and marijuana both have the same effect for the user-- to slow down depression/anxiety and make a person feel better, to put it simply. However, most, if not all physicians won't allow a patient to take Xanax indefinitely, because of inevitable dependency issues. Does marijua...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/281qxt/eli5_does_marijuana_have_sideeffectswithdrawal/
{ "a_id": [ "ci6k6bh", "ci6ky4i", "ci6lw5n", "ci6lwnm", "ci6lzcv", "ci6mvg2", "ci6n24f", "ci6omuq", "ci6pfbv", "ci6pj9a", "ci6qwod" ], "score": [ 10, 4, 3, 4, 8, 3, 2, 29, 2, 2, 2 ], "text": [ " > Yes, marijuana has s...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [] ]
5clnxo
why are pesticides meant to kill insects and rodents also poisonous to humans?
Humans, rodents, and (especially) insects have very different physiology, so why is it so hard to find a poison that only kills pests, but doesn't affect humans?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5clnxo/eli5_why_are_pesticides_meant_to_kill_insects_and/
{ "a_id": [ "d9xfdsk", "d9xgbmj", "d9xktqu" ], "score": [ 5, 3, 2 ], "text": [ "Because we are very close relatively speaking in terms of evolution. We are, in a broad sense, not \"very\" different to each other. That's why it's hard. For example, Nicotine (and caffeine) were creat...
[]
[]
[ [], [], [] ]
4nvli6
why is the 5-pointed star so prevalant on flags & in militaries
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4nvli6/eli5_why_is_the_5pointed_star_so_prevalant_on/
{ "a_id": [ "d47auc5" ], "score": [ 10 ], "text": [ "The pentagram has been a popular symbol since ancient times. There are a few theories about why this might have happened:\n\n* It is possible to draw a pentagram in one go. It might have been a symbol of continuity or endlessness, much like a ci...
[]
[]
[ [] ]
3yd784
trading 'futures' in the stock market
Recently read an article where two people in the 50's cornered 98% of the onion market by trading futures. What does this mean and how would this affect the price of onions?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3yd784/eli5_trading_futures_in_the_stock_market/
{ "a_id": [ "cych16n", "cych9k5" ], "score": [ 2, 2 ], "text": [ "\"Futures\" are contracts for the future delivery of an item. Instead of buying a farmer's onions that he just harvested, I invest in the onions that he has yet to grow. The farmer can use the investment on his farm right aw...
[]
[]
[ [], [] ]
92t2ld
will my teeth move after braces are removed?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/92t2ld/eli5_will_my_teeth_move_after_braces_are_removed/
{ "a_id": [ "e386aii", "e386aov", "e386bpq", "e386g3h" ], "score": [ 2, 2, 2, 2 ], "text": [ "Nah, at least not significantly in 10 days. Putting the retainer on the first time might be uncomfortable because of the minute movement, but if you wear it properly afterwards it ...
[]
[]
[ [], [], [], [] ]
5l3unr
how do they determine what age group of kids is safe for a specific toy? does the administration just say what they think is right or is there actually a scientific way to determine this?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5l3unr/eli5_how_do_they_determine_what_age_group_of_kids/
{ "a_id": [ "dbsoo84", "dbsre2x" ], "score": [ 10, 3 ], "text": [ "In the United States there are regulations that spell out how toys for children need to be tested and how the safe age range should be determined. Most toy manufacturers have to submit toys for third party testing and then ...
[]
[]
[ [ "https://www.cpsc.gov/Business--Manufacturing/Business-Education/Toy-Safety" ], [] ]
48g7tw
why do humans find it necessary to try and control how others live their lives even when it doesn't affect them personally?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/48g7tw/eli5_why_do_humans_find_it_necessary_to_try_and/
{ "a_id": [ "d0jakie", "d0jbhky" ], "score": [ 8, 3 ], "text": [ "We are a social species that evolved to live in villages of under 300 people. So we have evolved instincts designed to ensure our place in the hierarchy, and to regulate and stabilize the group. When you live in a small vill...
[]
[]
[ [], [] ]
3eq9zm
why when you look sideways at a moniter it looks like a picture negative?
Does it happen on anything other than lcd monitors? Why does it only happen to certain colors?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3eq9zm/eli5_why_when_you_look_sideways_at_a_moniter_it/
{ "a_id": [ "cthecfv" ], "score": [ 3 ], "text": [ "Nope, it's just LCD monitors. LCD stands for \"liquid crystal display\", because there is a layer of an electrically reactive liquid, enclosed in tiny little cells, over the top of the screen. When the liquid is activated, it turns dark, blocki...
[]
[]
[ [] ]
5onwec
why won't companies like valve make games such as half life 3 which would pretty much guarantee them unimaginable profits? is there another reason for not doing it apart from the risk of it not being that good?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5onwec/eli5_why_wont_companies_like_valve_make_games/
{ "a_id": [ "dcktn5d" ], "score": [ 3 ], "text": [ "Valve is making money hand over fist with Steam. Half Life 3 has impossible expectations to live up to so I'm sure they'll wait until the risk doesn't outweigh the reward. Why risk messing things up right now when they're doing really well?\n\n...
[]
[]
[ [] ]
626noz
why do you always need a resistance in front of a led even if the voltage is lower than the max the led can handle?
Essentially the title. (Newbie here, sorry for any errors)
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/626noz/eli5_why_do_you_always_need_a_resistance_in_front/
{ "a_id": [ "dfk4z72" ], "score": [ 2 ], "text": [ "The issue is that for an LED a small change in voltage can mean a very large change in current. For the resistor a change in voltage produces an equivalent change in current, different from an LED. You can't really know how much current is going ...
[]
[]
[ [] ]
39li8r
why doesn't gravity have an opposite, like the other fundamental forces?
Electromagnetism has positive and negative charges. Strong and Weak nuclear forces seem to come in pairs, as well. It seems strange to me that gravity works only one direction (pulling objects together). Why doesn't anti-gravity exist? [Obligatory XKCD link]( _URL_0_) (Sorry if that title winds up in r/titlegore; I ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/39li8r/eli5_why_doesnt_gravity_have_an_opposite_like_the/
{ "a_id": [ "cs4cf79", "cs4depa", "cs4n3wb" ], "score": [ 3, 14, 2 ], "text": [ "Because we have never found a particle with a negative gravitational mass.\n\nCould there be an entire galaxy of negatively charged gravitationally charged particles that repel our matter. Conceivably,...
[]
[ "http://m.xkcd.com/1489/" ]
[ [ "https://en.wikipedia.org/wiki/Negative_mass" ], [], [] ]
2p1s7v
why do videos playback/appear smoother on my phone when the brightness is all the way down and the lights are off?
For example. I'll watch a video with lights on, normal brightness. Video appears normally. I watch a video in the dark with normal brightness. Plays normally. Low brightness and lights off, it appears very smooth. Is it something to do with my phone, because my last phone did this as well. Curious, that's all
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2p1s7v/eli5_why_do_videos_playbackappear_smoother_on_my/
{ "a_id": [ "cmsp41c" ], "score": [ 2 ], "text": [ "It has more to do with how your brain interprets visual data. The low brightness makes it harder to notice small little hiccups in playback, so you have an easier time perceiving it as smooth motion." ] }
[]
[]
[ [] ]
3o9ic3
what's wrong with developing downtowns?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3o9ic3/eli5whats_wrong_with_developing_downtowns/
{ "a_id": [ "cvv6d2m" ], "score": [ 3 ], "text": [ "You'll have to give more details.\n\nWho is saying there is a problem developing downtowns? What are their arguments?\n\nMost people involved in urban design and development would argue that developing downtowns is the best thing that a city or...
[]
[]
[ [] ]
1q636n
why military forces use standard-capacity magazines for their rifles if there are magazines with much higher capacity?
For example, why military forces use a 30-round STANAG magazine if there's a BETA C-Mag 100-round magazine? Not only limited to rifles, can also be pistols, machine pistols/submachine guns or basically any magazine-fed military-issue firearms.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1q636n/eli5_why_military_forces_use_standardcapacity/
{ "a_id": [ "cd9k8yq", "cd9kbjh", "cd9ke6s", "cd9q4wz", "cd9tzh0", "cd9www6" ], "score": [ 3, 2, 2, 2, 2, 2 ], "text": [ "Simplicity, low cost and, often overlooked, the means to carry, exchange and manage magazines in the heat of battle would be my guesses....
[]
[]
[ [], [], [], [], [], [] ]
3godyn
why is artificial light used to grow plants on iss instead of the sun?
Many of you may have watched a video today of astronauts eating lettuce that they had grown on the International Space Station. Why is it that these plants were grown under artificial LED lights rather than using sunlight?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3godyn/eli5why_is_artificial_light_used_to_grow_plants/
{ "a_id": [ "ctzylvl" ], "score": [ 9 ], "text": [ "If you leave the window shades up all the time, you will heat the inside of the ship up a lot. Additionally, you'd only get light on the plants half the time since you're going around the earth every 90 minutes. Finally, with LEDs you can control...
[]
[]
[ [] ]
bz4jtf
how do movies go from the raw footage (film or digital) to 4k?
I’m mostly curious about the process of converting it from its raw form into ultra high quality, especially if the movie is older. But the question also probably applies to DVD and Blu-ray as well.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bz4jtf/eli5_how_do_movies_go_from_the_raw_footage_film/
{ "a_id": [ "eqpz57q", "eqq03vw" ], "score": [ 7, 3 ], "text": [ "With digital recordings, the raw footage is usually higher quality than 4K (IIRC, 8K is fairly common). For final release, you just render the video in the release quality and write it to the DVD or blu-ray (or digital downl...
[]
[]
[ [], [] ]
58txje
if fish are cold blooded, how do some species function at depths of over 900 meters where the temperatures are 0-3 degrees celsius?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/58txje/eli5_if_fish_are_cold_blooded_how_do_some_species/
{ "a_id": [ "d936qb5", "d93hjw8", "d93hxri", "d93k0rp" ], "score": [ 71, 9, 53, 3 ], "text": [ "Fish have a unique chemistry. It has been determined that often their blood is similar to antifreeze. This makes them able to function at colder temperatures than a lake trout or...
[]
[]
[ [], [ "http://www.arctic.uoguelph.ca/cpl/organisms/fish/adaptations/coldwatchem.htm" ], [ "https://en.wikipedia.org/wiki/Thermoregulation" ], [] ]
21thry
how did the pdf format become so popular?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/21thry/eli5how_did_the_pdf_format_become_so_popular/
{ "a_id": [ "cggde83", "cggg8ua" ], "score": [ 28, 3 ], "text": [ "First, there was a need for a way to represent paper online. A PDF is a decent approximation of a paper document as it will print to actual paper without any issues. The PDF is an early example of \"What You See Is What You...
[]
[]
[ [], [] ]
rvebu
explain to me how stocks work, what makes the price go up/down?
I know this question has likely been asked before, but I'm curious: What determines a stocks price, and how does it rise/fall? I want to start investing in some low-cost stocks to get a feel for it, but I'm curious what actually impacts the change, and rise/fall of the price. thank you in advance!
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/rvebu/eli5_explain_to_me_how_stocks_work_what_makes_the/
{ "a_id": [ "c48znvz", "c490aqn", "c493p7c", "c4945yd" ], "score": [ 30, 4, 2, 4 ], "text": [ "Also, you can think about companies like cows, and buying stock like buying part of a cow (and buying part not in the sense of the tail of the hooves, but owning a certain portion...
[]
[]
[ [], [], [], [] ]
3w8nq0
why do all big music artist's youtube channel's names end with vevo?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3w8nq0/eli5_why_do_all_big_music_artists_youtube/
{ "a_id": [ "cxu7yk4" ], "score": [ 46 ], "text": [ "\"Youtube/Google was in danger of being sued by Sony Music/UMG music. To prevent a potentially devastating lawsuit, Google's CEO (at the time) Eric Schmidt made a deal with Doug Morris, CEO of Sony Music, to build a parallel video platform based...
[]
[]
[ [] ]
tnju9
] what is the volcker rule, and how does it operate?
I understand its made to make speculative banking harder to do, and separate the "consumer" and "investment" banking. But.. how, and what exactly does this rule do?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/tnju9/elif_what_is_the_volcker_rule_and_how_does_it/
{ "a_id": [ "c4o5qku" ], "score": [ 4 ], "text": [ "So, it's actually really simple but the formal legislation is so complicated because of politicians.\n\nIt means that banks that take deposits (Like JPMorganChase) cant participate in proprietary trading. What is prop trading? It's basically trad...
[]
[]
[ [] ]
3dscsf
do planets get smaller with time?
Does it get smaller with time with some kind of erosion and so it's fated to become dust at some point?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3dscsf/eli5do_planets_get_smaller_with_time/
{ "a_id": [ "ct85yo7" ], "score": [ 8 ], "text": [ "Just the opposite, actually. Continuous meteor impacts make planets gain mass over time. Eventually though all suns explode, and the planets around them scatter to dust." ] }
[]
[]
[ [] ]
2y8a7r
why are spell checkers still not aware of grammatical issues?
It seems that we now have very good AI in many language-related domains (e.g. translation). Why isn't there more grammar-aware spell checkers and even style enhancers?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2y8a7r/eli5why_are_spell_checkers_still_not_aware_of/
{ "a_id": [ "cp763af" ], "score": [ 5 ], "text": [ "Complexity.\n\nHere's a computer's spell checking algorithm.\n\n For each word in document\n If word does not appear in dictionary\n highlight it\n compare closest word matches based on percentage and position of l...
[]
[]
[ [] ]
3jvf5d
why is addition so much easier to do than subtraction in your head?
Maybe it's just me and the select group of people I've spoken with, but everyone seems to agree that addition is so much easier to do in your head than subtraction. Is there a reason for this? When I do have to do subtraction, I usually end up just switching the numbers and making it an addition problem.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3jvf5d/eli5_why_is_addition_so_much_easier_to_do_than/
{ "a_id": [ "cusn26q" ], "score": [ 6 ], "text": [ "Practice. I noticed this when I was a kid, too. And noticed teachers always gave more add/multiply homework than subtract/divide, which seemed (still does) backwards to me." ] }
[]
[]
[ [] ]
23ujqx
as a british person who has never used or had dealings with comcast, what is so bad about them?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/23ujqx/eli5_as_a_british_person_who_has_never_used_or/
{ "a_id": [ "ch0pm4q", "ch0popu", "ch0q730", "ch0qhja", "ch0qk1k", "ch0qk3j", "ch0qq3v", "ch0qqyw", "ch0qyxn", "ch0qzai", "ch0r2zu", "ch0r3c4", "ch0r6xy", "ch0r73r", "ch0r9qb", "ch0rc25", "ch0rc2k", "ch0rcdm", "ch0rcwr", "ch0rdfo", "c...
[]
[]
[ [], [], [], [ "http://youtu.be/0ilMx7k7mso" ], [], [], [], [ "Twitch.tv" ], [], [], [], [], [], [], [], [], [], [], [], [], [], [ "http://www.businessinsider.com/what-time-warner-comcast-means-for-customers-2014-2", "http://www.networkworld.com/news/2014...
5ptdmg
what is the purpose of the turnable dial around the face of a watch?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5ptdmg/eli5_what_is_the_purpose_of_the_turnable_dial/
{ "a_id": [ "dctos3f", "dctos4r", "dctoubi", "dctuy47" ], "score": [ 87, 4, 3, 3 ], "text": [ "The ring as we know it today on some watches, also called rotating bezel, actually dates to the first diving watches of the 1950's. At the time, using a stopwatch was impossible, ...
[]
[]
[ [], [], [], [] ]
34gdlx
why can't software companies make an update/download/install status bar that moves evenly and accurately reflects the percentage of the task that is actually complete?
You know, instead of the ones they have now that move to around 3/4 of the way in a couple seconds and then spend about half an hour on the last quarter. Or even worse, the ones that get to the end and then just start the bar over.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/34gdlx/eli5_why_cant_software_companies_make_an/
{ "a_id": [ "cqul7uy", "cqudpdi" ], "score": [ 3, 5 ], "text": [ "Let's forget about the computers for a moment.\n\nYou're driving down an unfamiliar road with nothing but a map and a bunch of boxes you need to deliver to various houses. How do you estimate how long this will take you?\n\n...
[]
[]
[ [], [] ]
6n8ezt
why is a photocopying machine so huge compared to a normal colour printer?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6n8ezt/eli5why_is_a_photocopying_machine_so_huge/
{ "a_id": [ "dk7hw5f", "dk7hx05", "dk7irfd", "dk7ltvw", "dk7p3ma", "dk7qerz", "dk7qnz1" ], "score": [ 91, 3, 13, 3, 3, 2, 4 ], "text": [ "There are very small photocopiers too.\n\nOn the large ones, most of the extra size is for complex paper handlin...
[]
[]
[ [], [], [], [], [], [], [] ]
27tq62
where do our sweat glands pull water from when we sweat?
Is there a "reservoir"? Does our body diffuse it from our blood?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/27tq62/eli5_where_do_our_sweat_glands_pull_water_from/
{ "a_id": [ "ci4adpl" ], "score": [ 8 ], "text": [ "Yes, it mostly comes from blood (and tissue fluid, which is blood without the cells that takes nutrients all the way to your cells). The sweat glands actively pump out salts into your pore and water follows by osmosis. " ] }
[]
[]
[ [] ]
5c23b9
does frequency of life change during refraction?
A prism can split light into the entire spectrum of colours. So how can the frequency of the light beam change to different frequencies?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5c23b9/eli5_does_frequency_of_life_change_during/
{ "a_id": [ "d9t4gdw", "d9t7zcg" ], "score": [ 5, 2 ], "text": [ " > So how can the frequency of the light beam change to different frequencies?\n\nIt doesn't. The \"white\" light beam was actually made up of many different frequencies all going along together. A prism is dividing up alre...
[]
[]
[ [], [ "https://xkcd.com/964/" ] ]
efl83o
why is it when you’re sick and can’t keep water down that something like sprite or ginger ale will stay down?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/efl83o/eli5_why_is_it_when_youre_sick_and_cant_keep/
{ "a_id": [ "fc11btt", "fc12vbc" ], "score": [ 4, 2 ], "text": [ "Answer: ginger has some medicinal properties that help deal with nausea or indigestion. Pop drinks also have a lot of sugar in them, which is a quick source of energy when you're sick and unable to keep food down. So a flat ...
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39c6ew
why do military ship names begin with uss, hms, etc.?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/39c6ew/eli5_why_do_military_ship_names_begin_with_uss/
{ "a_id": [ "cs25j1w", "cs25kzm" ], "score": [ 2, 4 ], "text": [ "USS = United States Ship\n\nHMS = Her Majesty's Ship\n\nThese prefixes are part of naval tradition and vary from navy to navy. ", "They signify what country's military they represent. \n\nUSS = United States Ship\n\nHMS ...
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[ [], [] ]
1zo1cp
why do networks like abc,nbc,etc "partner" with comcast or other providers to view shows online.
Is there any benefit to ABC or any other network in require users be a customer of a certain provider in order to view some shows online. What benefit is it to them (the TV networks/content providers), to deal with a third party to deliver their content, on their website? I am a technical guy, I work in computer net...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1zo1cp/eli5_why_do_networks_like_abcnbcetc_partner_with/
{ "a_id": [ "cfvevh6" ], "score": [ 2 ], "text": [ "Broadcast networks make lots of money selling carriage licenses to cable companies which allow those companies to include the channels in their lineups.\n\nBy limiting the audience of free in-season streaming video, broadcast networks are keeping...
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43ea5e
why do high scoring posts (top all time) get archived so you can't vote on them?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/43ea5e/eli5_why_do_high_scoring_posts_top_all_time_get/
{ "a_id": [ "czhl5jq" ], "score": [ 8 ], "text": [ "all reddit posts are archived after 6 months\n\ntheres not difference between a high scoring post and a low scoring one" ] }
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1vdai6
is there a specific reason clocks go clockwise?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1vdai6/eli5_is_there_a_specific_reason_clocks_go/
{ "a_id": [ "cer34a2" ], "score": [ 10 ], "text": [ "Probably because they were modeled after sundials." ] }
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1lzdy7
saturn's 'storm'
How does a gas giant such as Saturn have a such a well-defined and sudden storm? How does this one compare to that of a traditional storm on Earth? Edit: [Here](_URL_0_/comments/1lz1pq/the_huge_storm_churning_through_the_atmosphere_in/) is the link to the recent [r/spaceporn](_URL_0_) post, which has a great picture t...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1lzdy7/eli5_saturns_storm/
{ "a_id": [ "cc49t80" ], "score": [ 3 ], "text": [ " > Monster storms rip across the northern hemisphere of Saturn once every 30 years or so, or roughly once per Saturn year.\n\n > \"We think this huge thunderstorm is driving these cloud particles upward, sort of like a volcano bringing up materia...
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[ "http://www.reddit.com/r/spaceporn", "http://www.reddit.com/r/spaceporn/comments/1lz1pq/the_huge_storm_churning_through_the_atmosphere_in/" ]
[ [ "http://www.jpl.nasa.gov/news/news.php?release=2013-268", "http://en.wikipedia.org/wiki/K%C3%A1rm%C3%A1n_vortex_street" ] ]
2zn0d3
why don't musicians and performers yawn or hiccup on stage ever?
Kind of a dumb question, but I've never heard a performer cough during a song, hiccup or have the urge to yawn.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2zn0d3/eli5_why_dont_musicians_and_performers_yawn_or/
{ "a_id": [ "cpkf4da" ], "score": [ 5 ], "text": [ "Classical music performer for 8 years here:\n\nIt happens more than you think. I've seen people take small naps on stage, vomit, pass out, etc. The reason it doesn't happen more though is probably because when performers are on stage, their bra...
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ccd5ow
what function do insects like ticks serve in nature?
Just read a disturbing article on [_URL_0_](https://_URL_0_) about savage tick clone armies that are sucking cows to death. I have to wonder what function do insects like ticks serve in nature when it seems all they do is destroy and/or sicken people. Link to article: [https://_URL_0_/science/2019/07/savage-tick-cl...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ccd5ow/eli5_what_function_do_insects_like_ticks_serve_in/
{ "a_id": [ "etm1i1q", "etm1kag", "etm352q", "etmamx4", "etmbwdz" ], "score": [ 67, 10, 3, 2, 9 ], "text": [ "Evolution does not require a \"function\" in order to justify an animal existing in a niche, it's not all part of some unseen designer's \"plan\".\n\nTicks ...
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[ "arstechnica.com", "https://arstechnica.com/science/2019/07/savage-tick-clone-armies-are-sucking-cows-to-death-experts-fear-for-humans/", "https://arstechnica.com" ]
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c6c914
why do you have to refrigerate eggs from the grocery store but you don't have to if you get them fresh from a farm?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/c6c914/eli5_why_do_you_have_to_refrigerate_eggs_from_the/
{ "a_id": [ "es7p1ll", "es7p6m3", "es7paa8" ], "score": [ 5, 4, 5 ], "text": [ "There is a membrane that comes out of the chickens that cover the egg. In the US, its standard to have the manufacture plant wash and sanitize them, but in places like the UK, they don’t so they can lea...
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539cgu
why coffee is not considered as a drug even though it's one of the ten most addictive substances in the world?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/539cgu/eli5_why_coffee_is_not_considered_as_a_drug_even/
{ "a_id": [ "d7r0y4s", "d7r0z3j" ], "score": [ 9, 5 ], "text": [ "Caffeine is a drug.\n\nThese are the first lines of its wikipedia page:\n\n > Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class. It is the world's most widely consumed psychoactive drug. Unlike...
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[ [], [ "https://en.wikipedia.org/wiki/Caffeine_dependence" ] ]
2n2unr
why should we care about the depreciation of a new car?
Isn't a car a utility and not an investment? I do not expect to make money like I do in my 401K or other investments. So why do so many people belittle the decision to buy new instead of used?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2n2unr/eli5_why_should_we_care_about_the_depreciation_of/
{ "a_id": [ "cm9t7dm", "cm9u5q8", "cm9ug20", "cm9wepq" ], "score": [ 6, 3, 2, 2 ], "text": [ "A car is not an investment. You are always going to lose money on it. But you may chose to lose more or less money.", "It only matters if you're going to sell the car. If you'r...
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[ [], [], [], [ "http://www.cars.com/nissan/versa-note/2014/costofownership", "cars.com" ] ]
3nkcgq
why is apple flavoured candy always green when red apples are far more prevalent?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3nkcgq/eli5_why_is_apple_flavoured_candy_always_green/
{ "a_id": [ "cvotah2", "cvotkrd" ], "score": [ 5, 2 ], "text": [ "Firstly, depends on where you live, red maybe more prevalent to you. Red is used for strawberry and cherry as they don't have alternates, leaving green as a good option for apples.\n", "Green apples (called \"Granny Smit...
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4yi8bl
why do some online stores have different regions?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4yi8bl/eli5why_do_some_online_stores_have_different/
{ "a_id": [ "d6nxp21" ], "score": [ 2 ], "text": [ "It's due to copyright related issues, one different companies can hold the rights to the same book in different regions, for example that upcoming Star Trek series was licensed to Netflix in every other country than the United States.\n\nSometime...
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44h0la
why does it take amazon several days to "prepare" items for shipment?
Aren't they in a warehouse somewhere ready to go?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/44h0la/eli5_why_does_it_take_amazon_several_days_to/
{ "a_id": [ "czq3zco", "czq40er", "czq47cd" ], "score": [ 4, 5, 5 ], "text": [ "It doesn't take days for Prime members, or people who pay for faster shipping.\n\nIf you take the cheap/free shipping, you're standing in line behind all the people who paid to get it quicker.", "Ok...
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12t935
why do i hear no music when i push an earbud deeper into my ear?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/12t935/eli5_why_do_i_hear_no_music_when_i_push_an_earbud/
{ "a_id": [ "c6y67r2" ], "score": [ 3 ], "text": [ "Earbuds make sound by making waves in the air between the speaker and your eardrum. \n\nIf you seal the ear canal tight and compress the air even tighter, the speaker needs to work harder to make waves. Cheap earbuds under low voltage can't mov...
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felech
why do you have to dunk what you're frying first in flour then egg then bread crumbs and sometimes back to egg and a second round of bread crumbs?
I don't understand this process whatever is being fried unless it's bread itself for stuff like donuts and dough balls. Or anything that is coated with bread of any kind. I see this often on recipe videos and i dont get it.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/felech/eli5_why_do_you_have_to_dunk_what_youre_frying/
{ "a_id": [ "fjoryta", "fjow5r9", "fjoxlrp" ], "score": [ 6, 7, 5 ], "text": [ "The flour and egg make things like breadcrumbs stick to whatever you’re frying. A second round of that process will double up on the breading/crunchiness of it.", "“Dry sticks to wet” is as simple a...
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34uegc
why are there so many immigrants coming across the mediterranean sea?
Specifically... the ones who have suffered such a morbid fate from Libya. What's going on? When/how was this arrangement made? Or was it? Any insight would be appreciated, however not if you are a wingnut who will spout murderous nonsense.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/34uegc/eli5_why_are_there_so_many_immigrants_coming/
{ "a_id": [ "cqy5ws4" ], "score": [ 2 ], "text": [ "Because their cost/benefit calculation (likely based on incomplete information) tells them it's a good option. Lots of parts of the middle east are very unstable, and offer poor economies and life chances. Lots of parts of Africa have few jobs, a...
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95d81p
how does discord make money if they have no advertisements?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/95d81p/eli5_how_does_discord_make_money_if_they_have_no/
{ "a_id": [ "e3rrmot", "e3rro3h", "e3rrz1o" ], "score": [ 2, 11, 10 ], "text": [ "\"If you aren't the consumer, you're the product.\"\n\nWith a lot of new tech companies, market share is more important to investors than income. Snapchat is burning money but the stock is valued so h...
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25xo1b
- what are vpns and what kind of magic makes them unblock restricted websites and stuff?
A classmate of mine uses a VPN to access blocked sites at my college sometimes but am wondering how exactly this works. Can anyone explain how it does that and how I can use one?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/25xo1b/eli5_what_are_vpns_and_what_kind_of_magic_makes/
{ "a_id": [ "chlp43z", "chlpnpf", "chlppze" ], "score": [ 3, 73, 3 ], "text": [ "A VPN or Virtual Private Network is a network connection that enables you to create a secure connection over Internet. With a VPN, all network traffic (data, voice, and video) goes through a secure vir...
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[ [ "http://imgur.com/zfS9uPE", "http://www.youtube.com/watch?v=FCS6ATvKVF0" ], [], [] ]
ant93h
how do rocket engines not crush themselves under their own thrust?
Rocket engines look relatively delicate, and seem like they are mostly thin metal and empty space to allow room for combustion and fuel/oxidizer flow, yet they put out thrust in the 100s of tons, how do they not crush themselves under their own trust? Are they actually more robust than they look, or are there other hid...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ant93h/eli5_how_do_rocket_engines_not_crush_themselves/
{ "a_id": [ "efvt560", "efvtbq3", "efvu13d" ], "score": [ 5, 18, 3 ], "text": [ "They are often times made out of extremely strong and robust exotic metals like titanium alloys or [Inconel.](_URL_0_)\n\nIn short, super duper strong and well engineered.", "They are actually just...
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[ [ "https://en.wikipedia.org/wiki/Inconel" ], [], [] ]
5gcfci
why do galaxies form in clusters rather than spread out from one another?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5gcfci/eli5_why_do_galaxies_form_in_clusters_rather_than/
{ "a_id": [ "dar4j9k" ], "score": [ 2 ], "text": [ "Because after the Big Bang matter clumped in certain areas of higher density due to gravity. These clumps would become Galaxy Clusters. They in turn would clump up even more and the resulting smaller clumps would become galaxies. Note that Galaxy...
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916o9z
how is it possible to see a star that might’ve exploded thousands of years ago?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/916o9z/eli5_how_is_it_possible_to_see_a_star_that/
{ "a_id": [ "e2vqtbi", "e2vqvqe", "e2vqvt1", "e2vqyfa", "e2xwxev" ], "score": [ 28, 3, 7, 2, 2 ], "text": [ "Light takes time to reach us. \n\nA star that is a million light years away may have exploded a thousand years ago, but the light carrying that information h...
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490j50
how does the military determine when someone gets deployed overseas?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/490j50/eli5_how_does_the_military_determine_when_someone/
{ "a_id": [ "d0o71wj", "d0o9bj3" ], "score": [ 2, 4 ], "text": [ "In the Navy you get stationed on a ship. Ships go through alternating cycles of maintenance, training and then deployment. If you're stationed on the ship and it deploys you go with it. Small ships deploy for six months e...
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8zcgtp
why does it seem that people with mental disabilities are happier than those who don't?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8zcgtp/eli5_why_does_it_seem_that_people_with_mental/
{ "a_id": [ "e2hn22p", "e2hnwhg", "e2hwfxj", "e2i0s8b" ], "score": [ 17, 7, 4, 2 ], "text": [ "It some instances, maybe they're not and simply cannot communicate. But for the rest, probably because they will never have the same worries and responsibilities. Many will be ...
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76kn6r
can people have smaller than average organs and what does it mean?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/76kn6r/eli5_can_people_have_smaller_than_average_organs/
{ "a_id": [ "doer7dg" ], "score": [ 8 ], "text": [ "If you made it this long with little to no problems, I wouldn't worry about it.\n\nBest thing to do is talk to your doctor about it. She would probably feel bad if she knew what she said made you uncomfortable and she didn't know/therefore could...
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