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1eb0wf
how do electromagnetic waves carry information? and how are signals transferred clearly without the information getting jumbled?
Repost, but previous post didn't clarify it clearly at all. I have studied physics, electronics and data communications but I feel this has been completely unexplained. I am familiar with Electromagnetic waves and the properties of frequency, wavelength, amplitude as well as AM/FM. Mainly I am confused that differen...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1eb0wf/eli5_how_do_electromagnetic_waves_carry/
{ "a_id": [ "c9yhpc9", "c9ylt9v" ], "score": [ 26, 7 ], "text": [ " > Mainly I am confused that different waves bouncing off different surfaces and arriving at the receiver don't cause the information to become jumbled due to the inference, caused by superposition and such.\n\nThey do and...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Nyquist_ISI_criterion", "http://upload.wikimedia.org/wikipedia/commons/b/bf/2-Ray_Ground_Reflection_Model_1.jpg" ] ]
1xibb9
if everything in the universe is created from essentialy the same particles, how do chemical elements have different properties?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1xibb9/eli5_if_everything_in_the_universe_is_created/
{ "a_id": [ "cfbl7sx" ], "score": [ 6 ], "text": [ "The same way as the same 26 letters can make up many millions of different words." ] }
[]
[]
[ [] ]
6n6oqn
how do bees (and any other insect that stings) know how to use their stinger?
It's not like they are taught how to use it, is the behavior just "coded" in their DNA?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6n6oqn/eli5_how_do_bees_and_any_other_insect_that_stings/
{ "a_id": [ "dk76kv8", "dk7fvy2" ], "score": [ 3, 5 ], "text": [ "The same way that you have a fight or flight response even though no one taught you it, it's coded into their DNA ", "We think and act using our nervous system. This includes the brain, spine, and the nerves that reach t...
[]
[]
[ [], [] ]
70u8fe
how come the president needs approval from congress to declare war, but can launch a nuclear weapon at will with no checks?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/70u8fe/eli5_how_come_the_president_needs_approval_from/
{ "a_id": [ "dn5wfg0", "dn5wfqq", "dn5wj4a", "dn5wsx5", "dn64zqr", "dn68yfd" ], "score": [ 2, 2, 2, 7, 2, 2 ], "text": [ "Because, in the event of an actual nuclear war, you only get a few minutes to make that decision.\n\nAlso, technically, the Secretary of...
[]
[]
[ [], [], [], [ "https://en.wikipedia.org/wiki/United_States_Uniformed_Services_Oath_of_Office" ], [], [] ]
j2wc8
can someone explain to me why we are still in iraq and why we haven't just pulled out?
I do understand "War against terrorism" but the fact is terrorism is everywhere you can't put an end to it. What are the pros and cons of stopping the Iraq War?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/j2wc8/can_someone_explain_to_me_why_we_are_still_in/
{ "a_id": [ "c28oup9", "c28ovqw" ], "score": [ 2, 3 ], "text": [ "I believe it is because we have gotten rid of their government, and there will be civil war and unrest if we leave. The US feels responsible to oversee the re-building of the country's organization.", "The last combat t...
[]
[]
[ [], [ "http://www.guardian.co.uk/world/2010/aug/19/iraq-last-combat-troops-leave" ] ]
7sxecd
what is the man who runs an auction actually saying and why does he say it like that?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7sxecd/eli5_what_is_the_man_who_runs_an_auction_actually/
{ "a_id": [ "dt86xpu" ], "score": [ 2 ], "text": [ "I think they talk fast because they want to bring excitement and a sense of urgency to the auction. This gets your adrenaline going and makes you impulsively bid." ] }
[]
[]
[ [] ]
2278me
if one of a pair of identical twins commits a crime, there is no dna evidence, and neither has an alibi, how do police determine which one did it?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2278me/eli5_if_one_of_a_pair_of_identical_twins_commits/
{ "a_id": [ "cgk00kw" ], "score": [ 3 ], "text": [ "In the most well known case, [both were charged](_URL_0_) with the hope that the courts could figure it out." ] }
[]
[]
[ [ "http://www.mirror.co.uk/news/uk-news/identical-twins-both-charged-rape-2192119" ] ]
6uxxgt
why are a lot of cooked dishes like salmon or meat high on protein if most of the proteins denature at ~40 degree celsius?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6uxxgt/eli5_why_are_a_lot_of_cooked_dishes_like_salmon/
{ "a_id": [ "dlw7lqo" ], "score": [ 2 ], "text": [ "Proteins denature at high temperatures which means their shape changes to the point where they can no longer do their purpose but they still exist as molecules which can be used for nutrition" ] }
[]
[]
[ [] ]
5tes8p
why are wind generators not shaped like turbofan engines?
A wind generator typically consists of a widely spaced, three bladed propeller to harness the wind energy. However, looking at modern turbofan engines, they have several shorter blades that overlap. My first thought is that it's due to cost, but turbofans are normally precisely engineered due to their reliability requ...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5tes8p/eli5why_are_wind_generators_not_shaped_like/
{ "a_id": [ "ddm2uvu" ], "score": [ 4 ], "text": [ "_URL_0_\n\nTl;dr- more blades restricts airflow, lowering the amount of energy you can extract, among other structural issues." ] }
[]
[]
[ [ "https://www.reddit.com/r/askscience/comments/1v1mbk/why_do_modern_wind_turbines_only_have_three_long/" ] ]
28tbb5
who are the "internet fast lanes" good for?
The only people I can see it benefitting is big businesses. It seems like nobody wants it besides them so why is it such a big deal still? Seems like 300 million Americans don't want it, how does it benefit us?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/28tbb5/eli5_who_are_the_internet_fast_lanes_good_for/
{ "a_id": [ "cie8wmk", "cie90et", "cieahrw", "ciei6w0", "cieuzdl" ], "score": [ 15, 2, 2, 2, 2 ], "text": [ "It's good for cable companies. ", "This would be the other side:\n\nIt's not big business v. people, it's one big business v. another big business. If n...
[]
[]
[ [], [], [], [], [] ]
1b1e6q
what would happen to the financial stability of the united states if foreign governments suddenly stopped investing (and reinvesting) in u.s. treasury bonds?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1b1e6q/eli5_what_would_happen_to_the_financial_stability/
{ "a_id": [ "c92o2lb", "c92omz3", "c92ounu" ], "score": [ 3, 3, 6 ], "text": [ "The first thing that would happen is that the U.S. would raise the yield on their treasury bonds, in order to entice investors to buy. After all, people will accept more risk for a higher yield. This ...
[]
[]
[ [], [], [] ]
ckbitw
what is blood doing when it congeals?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ckbitw/eli5_what_is_blood_doing_when_it_congeals/
{ "a_id": [ "evlfdsv", "evlfgmb", "evlkcbe", "evmejk3" ], "score": [ 5, 7, 3, 3 ], "text": [ "It's trying to form a clot so that no more gets out of you so you don't die. It doesn't know it's on the floor and it's a little too late for that, because blood cells don't have ...
[]
[]
[ [], [], [ "https://youtu.be/6taZMcj8co0" ], [] ]
5ctjxi
why is free trade 'generally good' and under what circumstances is it not good?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5ctjxi/eli5_why_is_free_trade_generally_good_and_under/
{ "a_id": [ "d9zatve", "d9zbe47" ], "score": [ 7, 2 ], "text": [ "\"More free\" trade means lower tariffs. Low tariffs mean that goods can be created in the cheapest way possible and then moved to the place where the most value is added.\n\nFor a real-world example, it makes no sense for A...
[]
[]
[ [], [] ]
3u1fpf
what is the purpose of the ibm watson commercials? what am i suppose to buy?
_URL_0_
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3u1fpf/eli5_what_is_the_purpose_of_the_ibm_watson/
{ "a_id": [ "cxb2qsj", "cxb2tev" ], "score": [ 6, 3 ], "text": [ "Medium and large businesses buy Watson computing capabilities... It's fairly expensive and meant for business intelligence number crunching... Not really meant for personal consumers.", "IBM stock, in the short term. IBM...
[]
[ "https://www.youtube.com/watch?v=pwh1INne97Q" ]
[ [], [] ]
26bc2n
where can our dna be found? in the blood? in the bones?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/26bc2n/eli5_where_can_our_dna_be_found_in_the_blood_in/
{ "a_id": [ "chpemj8", "chpemn0" ], "score": [ 3, 2 ], "text": [ "In the Nucleus of any human cell on your body. So blood, hair, skin. It can be pulled from any part of your body. \n\nEdit: Any cell your body produces contains your DNA in its nucleus, Which is the large ball in the center ...
[]
[]
[ [], [] ]
5vs01y
why do women generally have a higher body fat percentage than that of men?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5vs01y/eli5_why_do_women_generally_have_a_higher_body/
{ "a_id": [ "de4cn6y" ], "score": [ 2 ], "text": [ "There is no definite answer, but it's been suggested that the extra fat women store is priming their bodies for childbearing. Also explains why the extra fat is often stored around women's midsections, breasts, glutes and thighs. Women at some po...
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[ [] ]
2x54uo
why is noise physically fatiguing?
I'm talking about sustained noise from loud crowds or noisy groups of children for example. I find that even if I close my eyes to shut out the visual commotion I still feel worn out afterwards. Additionally, why does more appealing noise, such as a rock concert, not leave me feeling so tired afterwards? My suspicion i...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2x54uo/eli5why_is_noise_physically_fatiguing/
{ "a_id": [ "cowyxex" ], "score": [ 2 ], "text": [ "Your brain is still active listening to and processing the noises. If it's chaotic enough, it may become white noise which your brain won't process and helps some people to relax. Semi-chaotic noises where you have a lot of distinct sounds such a...
[]
[]
[ [] ]
2v7l7f
why are crayons (especially crayola) only used by small children?
I have noticed that only kids use crayons. Why is that? Are colored pencils superior, and if so, why can't children use them too?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2v7l7f/eli5_why_are_crayons_especially_crayola_only_used/
{ "a_id": [ "cof4n3g", "cof4vaj", "cof5cqr", "cof5tow", "cof7noc" ], "score": [ 2, 11, 4, 7, 2 ], "text": [ "Colored pencils are usually much more expensive.", "Crayons are good for kids because they are bright, safe to eat, hard to poke your eye out with, and p...
[]
[]
[ [], [], [], [ "http://youtu.be/7SDIilorkec" ], [] ]
3dwgby
what's actually happening in my brain when i'm confused?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3dwgby/eli5_whats_actually_happening_in_my_brain_when_im/
{ "a_id": [ "ct9c8nn", "ct9dsyf", "ct9g1fu", "ct9gaf6", "ct9hhln", "ct9hlq6", "ct9nvni" ], "score": [ 19, 91, 7, 677, 2, 2, 2 ], "text": [ "I'm not an expert, but I'll do my best.\nAs we grow, our brain learns patterns in our lives (we call them rout...
[]
[]
[ [], [], [], [], [], [], [] ]
851jqf
why does it feel pleasant to touch fur?
Simply put, why do humans feel good touching fur? This isn't the how, ie what hormones, it's why those hormones, or the way the nerves are effected, or whatever it is, is like the way it is- for what purpose.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/851jqf/eli5_why_does_it_feel_pleasant_to_touch_fur/
{ "a_id": [ "dvu3rb6", "dvu7i3g", "dvui3rs" ], "score": [ 5, 3, 6 ], "text": [ "Probably because it's warm and soft - good for our survival, and may represent availability of food stuffs.", "Back when we were cave dwellers, fur kept us alive by being a good insulator of warmth....
[]
[]
[ [], [], [] ]
adr851
- can someone please explain the legality behind "fighting words" and how they're different from threatening someone?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/adr851/eli5_can_someone_please_explain_the_legality/
{ "a_id": [ "edjm9r1", "edjqy00", "edjvrz7" ], "score": [ 9, 5, 2 ], "text": [ "It is typically not any more illegal to threaten someone than to exclaim “fighting words.” Both can simply incite violence from the person(s) they’re directed towards. Responding to words with violence,...
[]
[]
[ [], [], [] ]
1b433q
are the "cave men" i think of a misconception of prehistoric people?
I think of a hairy grunting man with a spear chasing mammoths, is this at all accurate? And can traits like adrenalin be said to be evolved from cavemen running away from a saber tooth tiger where the caveman without adrenalin was eaten? EDIT: I'm asking if _URL_0_ is historically accurate and weather they are a good ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1b433q/eli5_are_the_cave_men_i_think_of_a_misconception/
{ "a_id": [ "c93g5zf", "c93g8s2", "c93htxm", "c93iy9z", "c93ueyn" ], "score": [ 15, 5, 2, 3, 2 ], "text": [ "The reason people refer to our ancient ancestors as cave men is because they find evidence of this society in caves. Caves provided shelter for ancient men. ...
[]
[ "http://imgur.com/YG1uHMI,UHyVBMi" ]
[ [], [], [], [], [ "http://en.wikipedia.org/wiki/File:Tassili.jpg", "http://3.bp.blogspot.com/-auffRdNDc64/UHs4npAZvII/AAAAAAAAQe4/Ay1RhDXzJxA/s1600/Marchofprogress-600x406.jpg", "http://www.uiowa.edu/~osa/learn/ancient/flint.htm", "http://www.nytimes.com/2010/07/02/science/02tibet.html", ...
41uodk
why do dvr tv ratings matter so much if people recording shows are likely to just skip the commercials? shouldn't the more prominent ratings be focused on the people actually watching the ads?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/41uodk/eli5_why_do_dvr_tv_ratings_matter_so_much_if/
{ "a_id": [ "cz58emw" ], "score": [ 17 ], "text": [ "They track both -- live viewing, same day viewing, next day, three day and so on. And yes, higher live ratings are best, but DVR ratings are important too, and some ads can still work with DVRs. Have you noticed that movie ads have the name of t...
[]
[]
[ [] ]
6xktuf
what actually happens after a single use of lsd? i've heard some of the details but i'm looking for more unbiased answers. i want to try it but not sure if it's worth it in the long run.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6xktuf/eli5_what_actually_happens_after_a_single_use_of/
{ "a_id": [ "dmgo940" ], "score": [ 8 ], "text": [ "LSD alters your reality. Hence, you will \"see\" sounds, such as music. You will \"smell\" sights, such as the blue of a rock. This doesn't sound realistic outside of tripping, but it is your reality on the drug.\n\nI used LSD in my youth, proba...
[]
[]
[ [] ]
6ric9d
how do companies like lay's, pringles, doritos, etc. produce so many flavors at once?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6ric9d/eli5_how_do_companies_like_lays_pringles_doritos/
{ "a_id": [ "dl5ae7c" ], "score": [ 2 ], "text": [ "the only difference between those chips is the flavoring that goes on them. they all require the same production up to 2/3 of the way. only near the end when they put on the seasoning do things change. " ] }
[]
[]
[ [] ]
4o4qyr
why do teens get pregnant so easily without a condom but married couple can spend months without success?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4o4qyr/eli5_why_do_teens_get_pregnant_so_easily_without/
{ "a_id": [ "d49kubo" ], "score": [ 21 ], "text": [ "You're catching confirmation bias on both ends.\n\nNobody cares about the teens who have tons of sex and never get pregnant, and nobody cares about the happy couple that wants a baby and gets one....\n\nIt's the *exceptions* that are notable. " ...
[]
[]
[ [] ]
64p2vj
we orbit the point the sun is now, not where it was 8 minutes ago.
Suppose we are observing the solar system from the frame of reference of the galactic centre. Is my postulate here wrong? Do we indeed orbit the point where the sun was 8 minutes ago (in the galactic centre coordinates)? Also, do we see the sun at it's position now, or where it was 8 minutes ago (which would be ver...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/64p2vj/eli5_we_orbit_the_point_the_sun_is_now_not_where/
{ "a_id": [ "dg3xy3j" ], "score": [ 2 ], "text": [ "Imagine a universe with only the sun and earth in it; earth orbits the sun.\n\nIn this universe we first look at things from a perspective where the sun is stationary. Where the sun is now and where it was 8 minutes ago are the same place, so ne...
[]
[]
[ [] ]
crd376
how are police officers/investigators able to tell how fast cars were going after a car crash?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/crd376/eli5_how_are_police_officersinvestigators_able_to/
{ "a_id": [ "ex3y7pa", "ex7iyh4" ], "score": [ 5, 2 ], "text": [ "A lot of it is those simple physics equations/concepts you learned in high school, such as conservation of momentum. If you know where the crash started and stopped, and the mass of the car(s), you can calculate the initial ...
[]
[]
[ [], [] ]
6ifkfw
why can't we provide internet by using the same technology that broadcasts television shows?
Video on television plays very smoothly in real time, while the same video may buffer when using Internet. That must mean that television have better and faster network. So why can't we use the same principles to make internet available at faster speed. Also TV network is much more spread out in the world, so if we alr...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6ifkfw/eli5_why_cant_we_provide_internet_by_using_the/
{ "a_id": [ "dj5t9hv", "dj5t9i2", "dj5t9mj", "dj5td7o", "dj5tg5s", "dj5xovk" ], "score": [ 8, 2, 2, 3, 3, 2 ], "text": [ "The TV setup has two BIG perks the internet doesn't.\n\n* It's a one-way connection.\n* The messages are being broadcast to no one in pa...
[]
[]
[ [], [], [], [], [], [ "http://www.latimes.com/business/technology/la-fi-g-outernet-explained-20140808-htmlstory.html" ] ]
6ep4x9
how did researchers discover that certain elements of certain plant and fungi were capable of being used to treat disease?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6ep4x9/eli5_how_did_researchers_discover_that_certain/
{ "a_id": [ "dibxni8", "dibxtug", "dibynml" ], "score": [ 3, 2, 2 ], "text": [ "Pretty much every plant out there has been tested to see what it does, what properties it has, etc.\n\nThen there are researchers out there working on diseases that find types of things that would be pr...
[]
[]
[ [], [], [] ]
efbvcv
where did the order of flats and sharps come from?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/efbvcv/eli5_where_did_the_order_of_flats_and_sharps_come/
{ "a_id": [ "fbzinj0" ], "score": [ 4 ], "text": [ "Basically, it used to be the notes were A-B-C-D-E-F-G. Then once polyphony was discovered we started using writing harmony in parallel fifths. This creates a tritone between F and B, which the listeners of the time hated so much they called it th...
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[]
[ [] ]
9baqqx
how is the brain able to visualize rotations?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9baqqx/eli5_how_is_the_brain_able_to_visualize_rotations/
{ "a_id": [ "e51l7sd", "e51o9ld" ], "score": [ 10, 2 ], "text": [ "Brains easily perform many, many tasks hat are difficult for computer. Take that we know brains are optimized for pattern-finding. Consider intelligent life forms have to interact with a real 3-world and real time. Whic...
[]
[]
[ [], [ "https://www.sciencedaily.com/releases/2017/10/171002105204.htm" ] ]
7ul0vz
medicare for all. single payer system in healthcare.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7ul0vz/eli5_medicare_for_all_single_payer_system_in/
{ "a_id": [ "dtl2x1d" ], "score": [ 2 ], "text": [ "What about it? everyone payes taxes, and just like the police or fire department healthcare is publicly funded.\n\nThis means anyone can use it, and you get better deals on medication. \n\nUsually its not a full free medical expenses, but like no...
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[]
[ [] ]
311fiz
how come that the coca plant is only grown in south america and not for example in africa?
EDIT: My initial question was about the botanical conditions that are needed to grow the [coca plant](_URL_0_) but please feel free to answer/contribute about the geopolitical aspects as well.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/311fiz/eli5_how_come_that_the_coca_plant_is_only_grown/
{ "a_id": [ "cpxpf1a", "cpxsil4" ], "score": [ 11, 3 ], "text": [ "The coca plant is concentrated in three Andean nations: Peru, Colombia and Bolivia. Coca generally grows on the eastern side of the range at mid to low altitude. The plant requires the combination of cool temperatures and d...
[]
[ "http://en.wikipedia.org/wiki/Coca" ]
[ [], [] ]
62gy5m
why aren't there any technical (vocational) schools in america?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/62gy5m/eli5_why_arent_there_any_technical_vocational/
{ "a_id": [ "dfmghfv", "dfmghvi", "dfmgj9f", "dfmgqfh" ], "score": [ 3, 5, 3, 3 ], "text": [ "In the U.S. we have Trade schools, which specialize in teaching you a certain field of work i.e. Carpentry, welding, etc. \n\nI don't know if Vocational Schools in Europe are free,...
[]
[]
[ [], [], [], [] ]
2dhy2q
how do automatic parking garages prevent fraud?
So I've seen these parking garages where the tickets are handed out by a machine. What is there to prevent me from walking by, pressing the button, and pretending that I've only been in there for a few minutes to save a few bucks.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2dhy2q/eli5_how_do_automatic_parking_garages_prevent/
{ "a_id": [ "cjpnhi4" ], "score": [ 3 ], "text": [ "Usually, these machines are in front of a barricade. So, you pull up, press the button, get your ticket and drive through. So, you're thinking... walk up, press the button, get the ticket, the barricade goes up, and no car goes through, because y...
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[ [] ]
71lldu
why does stanford's athletics revenue and expenses match up down to the dollar (along with a number of other pac-12 schools)?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/71lldu/eli5_why_does_stanfords_athletics_revenue_and/
{ "a_id": [ "dnbmtmv", "dnboeyg" ], "score": [ 3, 3 ], "text": [ "They can always force the issue by deciding which expenses to charge to athletic department, and which to charge to the university's general facilities budget.", "Very few Athletic programs operate in the black. When th...
[]
[]
[ [], [ "http://www.ncaa.org/about/resources/media-center/news/athletics-departments-make-more-they-spend-still-minority" ] ]
3fg1ik
why is it easier to sing in a foreign language?
I know several Europeans who speak English at various levels (sometimes badly) but can sound passably British or American when they sing.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3fg1ik/eli5why_is_it_easier_to_sing_in_a_foreign_language/
{ "a_id": [ "cto9wuc", "ctoahpc" ], "score": [ 3, 2 ], "text": [ "Likely because the songs they are singing are familiar to them. The lyrics have repetition, melody, and specific and consistent pronunciation which makes certain things easy to memorize and repeat. ", "Same reason why p...
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[ [], [] ]
6x3yly
what is the science behind 'cooking' scallops with lemon/lime?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6x3yly/eli5_what_is_the_science_behind_cooking_scallops/
{ "a_id": [ "dmd2l2m" ], "score": [ 4 ], "text": [ "Fish, meat, poultry etc. are made of proteins. When protein is heated enough it \"denatures\", which changes the folding of the protein molecules - the meat becomes harder, changes color, and so on.\n\nExposing proteins to acid (lemon juice) also...
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[ [] ]
a5d2xf
what features give bullets power, effectiveness, and so on, and why there isn't just one best bullet?
The context behind this was this: I was reading about the FN Five-seveN, which - true to its name - uses FN's special bullet, a 5.7 x 28mm cartridge. After a brief period of consideration (and a little bit of googling for inch conversion), I came to realize a few things. 5.7mm (0.224 inches) is *puny*. I vaguely rem...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/a5d2xf/eli5_what_features_give_bullets_power/
{ "a_id": [ "ebloxg5", "eblpf4f", "eblpk8q", "eblppre", "eblq28o", "eblq7oj", "eblr21n", "ebltkgy" ], "score": [ 2, 3, 8, 5, 5, 2, 2, 2 ], "text": [ "Penetration, range, damage depending upon what you want the bullet to do you have different ...
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[ [], [], [], [ "https://qph.fs.quoracdn.net/main-qimg-0575efa2d5f07f7dd194fbd0b857e6b5.webp" ], [], [], [], [] ]
1t2ioe
how does throat coat tea help sore throats?
So when I get a sore throat I always drink a throat coat tea and it normally helps clear the sore throat, so how does that help? How does the tea help repair the damage or the pain?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1t2ioe/elif_how_does_throat_coat_tea_help_sore_throats/
{ "a_id": [ "ce3rztr" ], "score": [ 2 ], "text": [ "I don't know if I'll get downvoted for not appearing to land on the right side of the mainstream-medicine tracks.\n\nBefore doctors began using pharmaceuticals, they used herbs (plants). Just as we know that cinnamon and marijuana have specific ...
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ddtuh7
why can you leave a raw potato out of the fridge without spoiling but not a cooked/boiled one?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ddtuh7/eli5_why_can_you_leave_a_raw_potato_out_of_the/
{ "a_id": [ "f2n7wys", "f2nhir9", "f2p2i7o", "f2pz7tw" ], "score": [ 61, 13, 3, 3 ], "text": [ "First, a raw potato outside of the fridge absolutely will spoil, especially if the weather is warm and humid. There’s no feeling quite like clearing out the cabinet, looking for ...
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[ [], [], [], [] ]
5px5hy
why do people sometimes end up driving on the wrong way of the road?
Every now and then you hear about people driving against traffic, usually on a one-direction highway or something like that. I've never seen any explanation why it happens and can't find anything that explains it. But it does happen. How is this? Don't people notice everyone is coming at them?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5px5hy/eli5_why_do_people_sometimes_end_up_driving_on/
{ "a_id": [ "dcui6if", "dcui7bp" ], "score": [ 5, 3 ], "text": [ "It's usually drugs/intoxication, dementia, or running from the law for one reason or another. \n\n* [uninsured and drunk](_URL_5_)\n\n* [suspended license](_URL_1_)\n\n* [fuck-ton of drugs](_URL_4_)\n\n* [under the influence...
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[ [ "http://www.9news.com.au/national/2017/01/24/19/28/policewoman-pushing-for-change-after-father-was-killed-by-elderly-driver", "http://www.stuff.co.nz/national/crime/88714061/dukes-a-hazard-speeding-driver-leads-police-on-45km-chase", "http://www.clickondetroit.com/traffic/police-wrong-way-driver-kille...
2iwxm7
how can quicksilver be in a fox movie (x-men) and also be in a disney/marvel movie?
So as a bit of a comic book nerd I had this discussion tonight with a friend. I was curious as to how Quicksilver could be in the X-Men movies and also be in the up coming avengers sequel. Could this also be applied to other characters that Marvel sold to Fox/Sony?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2iwxm7/eli5_how_can_quicksilver_be_in_a_fox_movie_xmen/
{ "a_id": [ "cl69ti5" ], "score": [ 10 ], "text": [ "It is a consequence of the intellectual property rights Marvel assigned to Fox. Essentially, Fox owns the exclusive movie rights to the X-Men and Fantstic Four Franchises, and this means the use of the names, likeness and story arcs of the heroe...
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[ [ "http://splashpage.mtv.com/2013/05/24/quicksilver-marvel-fox-stand-off/" ] ]
925ev3
why are videos recorded in 720, 1080 or 4k and not in megapixels?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/925ev3/eli5_why_are_videos_recorded_in_720_1080_or_4k/
{ "a_id": [ "e3361u5", "e3394fk" ], "score": [ 10, 2 ], "text": [ "One megapixel is 1 million pixels. 1080p has just over 2 million pixels per frame. 4k has about 9 million pixels per frame.\n\nSo when you say 1080p, you could also say 2.07MP\n\n", "TL;DR-- 720 and 1080 (among others, ...
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[ [], [] ]
5qtymc
quintuplets, how does a woman hold that many babies all the way to term?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5qtymc/eli5_quintuplets_how_does_a_woman_hold_that_many/
{ "a_id": [ "dd227tz", "dd22dls", "dd267ek" ], "score": [ 7, 6, 3 ], "text": [ "They don't. Twins are usually born prematurely - the more twins, the earlier. The average pregnancy length for quintuplets is around 29 weeks, as opposed to the normal 40 weeks. Additionally, the last f...
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[ [], [], [] ]
724wra
why aren't burn victims kept numb during healing?
Bad burns are notoriously very painful and can take long to heal completely. So, why aren't burn victims kept doused in some sort of numbing agent like lidocaine until they've healed up?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/724wra/eli5_why_arent_burn_victims_kept_numb_during/
{ "a_id": [ "dnfqjfj" ], "score": [ 5 ], "text": [ "Some numbing agents have toxic chemicals in them so using them on an open wound is a bad idea. Plus there's no way of knowing who is or is not allergic to said chemicals. As far as 3rd degree burns go, the nerves are usually killed from the burn ...
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5gvutz
how does unemployment work? who pays for it?
Should I stay on unemployment as long as possible to maximize my benefit or does that just hurt my taxes later? I'm totally unclear how it works. This question is USA-centric.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5gvutz/eli5_how_does_unemployment_work_who_pays_for_it/
{ "a_id": [ "davgdbd", "davgh9z", "davmy61", "davo3ow", "davvjbp" ], "score": [ 12, 2, 4, 2, 2 ], "text": [ "Unemployment is an insurance system. Everyone pays an unemployment insurance premium (or their employers do, depending on the location, but it is part of you...
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[ [], [], [], [], [] ]
bgqdnf
how phones still can call ambulance when there's no simcard put?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bgqdnf/eli5_how_phones_still_can_call_ambulance_when/
{ "a_id": [ "elmsy2z", "elmt2r8", "elngex5" ], "score": [ 8, 11, 2 ], "text": [ "A SIM card is used for identification of an account/authorization to allow the phone on the network. Emergency calls to 911 bypass that, the towers are configured to allow calls to 911 through from any...
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[ [], [], [] ]
26xm5n
nucleus of atoms
How do nuetrons (neutral) and protons (positive) stay together in the nucleus of an atom? If there is no charge to attract to each other how does it stay together?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/26xm5n/eli5_nucleus_of_atoms/
{ "a_id": [ "chvg5yw", "chvg820" ], "score": [ 2, 2 ], "text": [ "It's called the [strong neuclear force](_URL_0_). Protons and neutrons aren't single particles, they're made up of smaller particles called quarks. The quarks are attracted to unlike charges, and quarks of protons and neutro...
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[]
[ [ "http://en.wikipedia.org/wiki/Strong_Nuclear_Force" ], [] ]
cr9zae
4g cellphone service used to be the best option we had, and though it may not have been lightning fast by some standards, it still got the job done. now that 5ge is available, having 3 bars of 4g can’t even load an internet page sometimes.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/cr9zae/eli5_4g_cellphone_service_used_to_be_the_best/
{ "a_id": [ "ex38n0h", "ex3a6ss", "ex3hj78" ], "score": [ 41, 10, 5 ], "text": [ "For now, \"5G\" is more hype than reality with most areas and providers, and \"5GE\" doubly so. It's unlikely to have any impact, positive or negative, on your experience.\n\nAs for why your 4G data c...
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[]
[ [], [], [] ]
1l419z
in a couple of paragraphs the plot of "the fountain" with hugh jackman
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1l419z/eli5_in_a_couple_of_paragraphs_the_plot_of_the/
{ "a_id": [ "cbvl485" ], "score": [ 2 ], "text": [ "There was a very good ELI5 a few weeks ago, so you could try searching for it. One of the comments there had a link to this youtube video _URL_0_\nIt explores a few interpretations of the plot" ] }
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[]
[ [ "https://www.youtube.com/watch?v=UkVS5A5gfGs" ] ]
1o6okf
the significance of voyager 1 crossing the "boundary."
What boundary did Voyager 1 cross? How did scientists conclude that it had crossed a boundary? Has it left the Solar System? Where is Voyager 1 in relation to the vastness of the galaxy?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1o6okf/eli5_the_significance_of_voyager_1_crossing_the/
{ "a_id": [ "ccp94mw" ], "score": [ 3 ], "text": [ "No, it hasn't left the Solar System. NASA isn't claiming that, just the media who like sensational headlines.\n\nThe Solar System is usually defined as everything that orbits the Sun. The Sun is the dominant gravitational object in a radius of ...
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[ [] ]
8ig2qt
why do people think yellowstone will explode and destroy the earth, but not worry about hawaii's volcano eruption?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8ig2qt/eli5why_do_people_think_yellowstone_will_explode/
{ "a_id": [ "dyrfikg", "dyrfqb2", "dyrfrm8", "dyrfswv", "dyrgav3", "dyrikvt", "dyrk5sv", "dyrkeb3", "dyrmmzg", "dyrmvxt", "dyrn7d6", "dyrnv1z", "dyro8at", "dyronpd", "dyrq933", "dyrqnzw", "dyrr23t", "dyrr8e8", "dyrrkx5", "dyrs0q0", "d...
[]
[]
[ [], [], [], [], [], [], [], [], [ "http://www.findingdulcinea.com/news/science/2009/jan/Understanding-Why-Yellowstones-Supervolcano-Is-So-Dangerous-.html" ], [], [], [], [], [], [], [], [], [], [], [], [ "day.it" ], [], [], [], [ "https://www.goodreads...
eli3vw
why do viruses like hpv and hsv only stay in regional areas of the body?
Apparently HSV1 can spread but you never get it like, on the back of your neck, or on your nipple, or some other area. Now, I am aware of the human anatomy, in that there are more nerve endings near openings of the body, including eyes, nose, lips, and anus, and you can theoretically get HSV there. Are the nerve ending...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/eli3vw/eli5why_do_viruses_like_hpv_and_hsv_only_stay_in/
{ "a_id": [ "fdigfny", "fdilqgn" ], "score": [ 2, 3 ], "text": [ "After a person is first infected, HSV stays in the body. It travels to nerve cells near the spine and stays there until something triggers it to become active again. When this happens, the virus then travels along the nerves...
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[ [], [ "https://portlandpress.com/clinsci/article-lookup/doi/10.1042/CS20160786" ] ]
92gzq2
- why can’t you use shampoo all over your body like regular bar soap or body wash?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/92gzq2/eli5_why_cant_you_use_shampoo_all_over_your_body/
{ "a_id": [ "e35nqk2" ], "score": [ 2 ], "text": [ "Shampoo is a soft version of soap that leaves your hair nice and soft. That totally works for both, hair and body. \nThe other way round is not so good because soap gives you dry hair and also inflamed scalp after several uses.\nBut shampoo is al...
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67undj
ivan pavlov's experiments and his concluding theory of 'classical conditioning'.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/67undj/eli5_ivan_pavlovs_experiments_and_his_concluding/
{ "a_id": [ "dgtcrnj", "dgtd1i4" ], "score": [ 3, 3 ], "text": [ "Ring bell, feed dog. Ring bell, feed dog. Ring bell, feed dog. \nRing bell, don't feed dog, dog salivates. Dog conditioned to salivate to sound of bell. Conclusion: dogs hungry for bells.", "If I remember correctly, ther...
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[ [], [] ]
2j05o6
how do we lose weight by exercising?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2j05o6/eli5_how_do_we_lose_weight_by_exercising/
{ "a_id": [ "cl74e2u" ], "score": [ 2 ], "text": [ "When you breathe, you take in O2 which is used by your tissues, a carbon atom is attached through metabolic processes, and you exhale CO2, which is heavier than O2. So every time you take a breath, you lose weight. Exercise increases your need fo...
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811hlk
how steering into the skid works
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/811hlk/eli5_how_steering_into_the_skid_works/
{ "a_id": [ "duzrmek", "dv0b3tt", "dv0hg4j" ], "score": [ 11, 3, 2 ], "text": [ "Tires have three kinds of friction, decreasing as you go\n\nStatic friction - just sitting still, not rolling or moving.\n\nRolling friction - when the tire is rolling down the road. This is almost as...
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[]
[ [], [], [] ]
e26fpm
the u.k party manifestos
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/e26fpm/eli5_the_uk_party_manifestos/
{ "a_id": [ "f8tso4b" ], "score": [ 2 ], "text": [ "This is better in r/askuk." ] }
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[ [] ]
4friv7
how do we know the composers (eg. beethoven, mozart, chopin) who died hundreds of years ago could play their own works?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4friv7/eli5_how_do_we_know_the_composers_eg_beethoven/
{ "a_id": [ "d2bd4sm", "d2bd5v2", "d2bdhf5" ], "score": [ 5, 2, 7 ], "text": [ "Primary evidence from people that went to their concerts and performances. Mozart was playing for royalty at like the age of 4. Surely someone recorded that, or wrote to their family about such an event...
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[ [], [], [] ]
lyn0d
how is kim jong-il allowed to be in power?
He is clearly completely insane. How is he getting away with disallowing citizens to leave the country, executing people, etc. Why doesn't somebody just go arrest him?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/lyn0d/how_is_kim_jongil_allowed_to_be_in_power/
{ "a_id": [ "c2wnrem", "c2wo0n2", "c2wnrem", "c2wo0n2" ], "score": [ 4, 4, 4, 4 ], "text": [ "Who's going to arrest him? Serious question.\n\nHis police force, which is headed by a handpicked cadre of loyalists?\n\nHis military, which is headed by a handpicked cadre of loy...
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[ [], [], [], [] ]
3he2yu
why is it common amongst artists to have a hard time drawing hands? is there a science behind this?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3he2yu/eli5why_is_it_common_amongst_artists_to_have_a/
{ "a_id": [ "cu6lszs", "cu6v6sw", "cu7irl1" ], "score": [ 5, 2, 2 ], "text": [ "Its a bit of a tautology, but complex things are difficult to draw. Its not psychological, its mechanical. The hand has basically as many moving pieces as there are in the rest of the body on a macrosco...
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[ [], [], [] ]
6agwu2
why is "pc gamer" hardware so flashy?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6agwu2/eli5_why_is_pc_gamer_hardware_so_flashy/
{ "a_id": [ "dheg7qw", "dhegay1", "dheh1vz", "dheocui" ], "score": [ 2, 2, 3, 2 ], "text": [ "Because flashy stuff looks cool. Not everyone is into colorful and rgb kinds of builds, some people have really basic looking cases and hardware. It's preference.", "If you wan...
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[ [], [], [], [ "https://en.wikipedia.org/wiki/Faraday_cage" ] ]
1ccdzj
why is facebook on the decline?
it is still the social media king where everyone posts their pics, statuses, etc etc. what other social media sites are attracting away users from facebook, and why?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1ccdzj/eli5_why_is_facebook_on_the_decline/
{ "a_id": [ "c9f566m", "c9f574u", "c9f5lcs" ], "score": [ 6, 2, 10 ], "text": [ "It's not on the decline, rather everybody that would of gotten a facebook account already has. So it's registration is slowing and some people that were active have started losing interest. But there...
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[ [], [], [] ]
33udf8
why is it important to recognize something in the past like the armenian genocide? what benefit will the armenians receive from this recognition?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/33udf8/eli5_why_is_it_important_to_recognize_something/
{ "a_id": [ "cqogfub" ], "score": [ 6 ], "text": [ "Using a super extreme example, the holocaust. Imagine if to this day the german government denied it. No closure for the families of the dead. No trust of the heads of state what so ever, from citizens and governments alike. Imagine the anger wi...
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2h3qim
what is happening to a dog's body physiologically when an owner leaves them in the car on a hot day?
I work outside, and I live in California. So being that it's generally hot out it's not recommended that people leave their dogs in the car (even with the windows cracked), but I see it pretty often. I was just curious as to what happens when these reckless owners do this. Thanks in advance
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2h3qim/eli5_what_is_happening_to_a_dogs_body/
{ "a_id": [ "ckpgfgq" ], "score": [ 2 ], "text": [ "Dogs being left in cars with the windows cracked can definitely reduce these effects, but is still not good whatsoever. Especially when the windows are shut, being left in a car (and especially a very hot one; the hotter the car, the worse it is ...
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[ [] ]
1fnxkn
what's the deal with this badger cull?
I come from a small farming village and I've only ever been told that badgers are vermin that spread disease to other farm animals. The Uk government has given the go ahead for a cull but people are still really mad and are doing their best to stop/hinder it. Im not for or against it really, I just don't understand ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1fnxkn/eli5_whats_the_deal_with_this_badger_cull/
{ "a_id": [ "cac3p21" ], "score": [ 6 ], "text": [ "Bovine tuberculosis is a real and very serious concern for dairy farmers. It's highly contagious, and if your cows catch it then it's illegal to sell their milk (as it's possible to pass on the disease to humans by drinking infected milk). This i...
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2tglz6
who compiled the first compiler?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2tglz6/eli5_who_compiled_the_first_compiler/
{ "a_id": [ "cnyuym6", "cnyv4eh" ], "score": [ 5, 2 ], "text": [ "You don't need a compiler to run software. Compilers are translators, they take high level languages and translate the code into assembly and machine code. You can write a compiler directly in assembly or machine code to act...
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[]
[ [], [] ]
5f25wc
does the rate of how fast something gets charged depend on the outlet or the charger itself?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5f25wc/eli5_does_the_rate_of_how_fast_something_gets/
{ "a_id": [ "dagvc45" ], "score": [ 2 ], "text": [ "It depends on the charger, the outlet and the battery in the device being charged.\n\nThe outlet cannot supply more than its maximum output, if its a wall socket thats likely a fair bit, USB socket often a fair bit less etc.\n\nThe charger itself...
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2hk3dc
why does making a circle with my lips and blowing air through it produce a high-pitched whistle?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2hk3dc/eli5_why_does_making_a_circle_with_my_lips_and/
{ "a_id": [ "cktfb7j" ], "score": [ 3 ], "text": [ "Air is pushed out of your lungs and into your mouth. Some of the air passes through your lips and escapes, which is why you can feel your breath when you whistle. Much of the air, however, is trapped by the inside of your lips. As the air is dire...
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[ [] ]
6vdevo
what are tax exemptions/what to "claim" on your w4?
I just started a new job; I'm a single male with no other dependents. What does it mean to "claim 0" or "claim 1", etc.? What is more beneficial and why? Thanks!
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6vdevo/eli5what_are_tax_exemptionswhat_to_claim_on_your/
{ "a_id": [ "dlzdb52", "dlzdp14", "dlzdshs" ], "score": [ 5, 2, 2 ], "text": [ "Nominally, you pay taxes based on what you earn and your employer will take money out of each paycheck to cover your taxes. But there's all sorts of modifiers on how much you actually owe. For example, ...
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[]
[ [], [ "https://www.irs.gov/individuals/irs-withholding-calculator" ], [] ]
334cml
why is africa still shown as being smaller than north america on most maps?
In reality Africa is much bigger than North America. Greenland too is still made out to be much larger than in actually is. Why do modern maps still portray the world in this way when satellite imaging has shown this to be wrong?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/334cml/eli5_why_is_africa_still_shown_as_being_smaller/
{ "a_id": [ "cqhe8wf", "cqhec2g", "cqhf90p" ], "score": [ 13, 3, 3 ], "text": [ "It's impossible to display the surface of a sphere on a 2D sheet of paper without distortion - the question is what kind of distortion and what you want to use the map for. People tend to like the Merc...
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[]
[ [], [], [ "http://en.wikipedia.org/wiki/List_of_map_projections" ] ]
2mmhed
why hasn't someone bred a dog with a longer lifespan?
Given how most breeds tend to last between 10-15 years, I would imagine it would be simple to get the average up to at least 20 or 25. Is there some complication with breeding a long-living dog?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2mmhed/eli5_why_hasnt_someone_bred_a_dog_with_a_longer/
{ "a_id": [ "cm5lm5b", "cm5lnva", "cm5ly3k" ], "score": [ 4, 3, 3 ], "text": [ "Yes, the fact that the lifespans of dogs are not determine by some gene that goes \"this dog will die at age 20\".\n\nDeath results from a combination of genes going \"this dog is likely to have cancer\...
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[ [], [], [] ]
3ckyvm
traders at the new york stock exchange. what is their purpose, and what can they do that can't be done by stockbrokers in offices?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3ckyvm/eli5_traders_at_the_new_york_stock_exchange_what/
{ "a_id": [ "cswjnis" ], "score": [ 3 ], "text": [ "The new York stock exchange is pretty much entirely computerized now, so the vast majority (82%) of the trading is done through computers from offices. \n\nA small selection are traded physically on the floor, auction style. This offers better pr...
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[ [] ]
2gb1t1
why do my teeth itch when i hear chalk scraped down a blackboard?
It also happens when 2 pieces of cardboard are rubbed together, it might be different for other people
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2gb1t1/eli5_why_do_my_teeth_itch_when_i_hear_chalk/
{ "a_id": [ "ckhcmmx", "ckhr8i2" ], "score": [ 3, 2 ], "text": [ "It's not my teeth but my balls that I feel it. My balls get this weird shiver anytime I hear or see something painful ", "Perhaps it's \"pseudo-pain,\" meant to prevent animals from biting down on hard objects.\n\nThis a...
[]
[]
[ [], [] ]
3opxfu
what would happen to earth, and its inhabitants, if heat didn't rise?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3opxfu/eli5_what_would_happen_to_earth_and_its/
{ "a_id": [ "cvzcpdw", "cvzcwko", "cvzdj1j" ], "score": [ 2, 2, 2 ], "text": [ "Heat energy does radiate evenly, but hot (less dense) fluids rise. Without this we probably wouldn't have weather, and the oceans would not be nearly as active, and so life might not have even developed...
[]
[]
[ [], [], [] ]
4hysby
why is falling through the map/level such a common glitch in video games?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4hysby/eli5_why_is_falling_through_the_maplevel_such_a/
{ "a_id": [ "d2tj3cp", "d2tj4ej", "d2tkj0x", "d2tm3dc", "d2tos7q", "d2tqy1i", "d2ttzy2", "d2twf8q", "d2tx2y8", "d2tynlo", "d2tyqew", "d2tyzlt" ], "score": [ 33, 567, 18, 54, 12, 3, 3, 2, 9, 2, 5, 4 ], "text": [ ...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [], [] ]
abkele
what causes winter in northern states or countries but areas like florida stay warm all year round?
I just arrived home from Chicago (25-30 F) to West Palm Beach Florida (75-80 F) is it the distance from the sun that causes the temperature change? But adding to that why are mountains colder with snow such as mauna loa in hawaii but the beaches warm. wouldn’t the mountains be “closer” to the sun?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/abkele/eli5_what_causes_winter_in_northern_states_or/
{ "a_id": [ "ed0wowe", "ed0x6ne" ], "score": [ 5, 2 ], "text": [ " > \twouldn’t the mountains be “closer” to the sun?\n\nHow close features on Earth are to the sun is irrelevant to their temperature. Earth's orbit varies in distance from the sun by about 5 million kilometers, and this has ...
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[]
[ [], [ "https://en.m.wikipedia.org/wiki/Season" ] ]
35l8rb
why does things that set air in motion (like wind, fans,...) make us feel colder, when from my understanding, when particules are in motion, more friction occurs, thus creating more heat.
Im probably totally wrong about the friction part but I'd love to understand the process. Are things like fans globally increasing a room temperature ? Edit : Many thanks to all for you detailed explanations. Much clearer now :)
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/35l8rb/eli5_why_does_things_that_set_air_in_motion_like/
{ "a_id": [ "cr5f88z", "cr5f9e4", "cr5f9ut", "cr5fgjp" ], "score": [ 2, 2, 2, 2 ], "text": [ "It makes us feel cooler because that air/wind is taking away the heat. The same reason you blow on your soup it's to remove the hot air about it therefore allowing more of the hot...
[]
[]
[ [], [], [], [] ]
1jqjls
would it be possible to capture the chemical reaction of "learning" and create a medicine to replicate it?
As I am sure many here are aware, there is a certain Joy in learning something new. Especially that feeling when you have been trying to understand something for a while, and one day it just clicks. It could be in the shower, or just waking up. I would imagine that this is due to a chemical reaction in the brain. Is th...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1jqjls/would_it_be_possible_to_capture_the_chemical/
{ "a_id": [ "cbhaluh" ], "score": [ 3 ], "text": [ "Isn't \"learning\" simply your brain making new connections, from repeated exposure?" ] }
[]
[]
[ [] ]
4m9lcy
why are dna tests conducted after the suspect has been convicted and imprisoned for multiple years?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4m9lcy/eli5why_are_dna_tests_conducted_after_the_suspect/
{ "a_id": [ "d3to4zy" ], "score": [ 2 ], "text": [ "Those tests are done because those people and their lawyers are filing appeals, basically saying \"This case wasn't handled correctly the first time for X and Y reasons, please review it again.\"\n\nEspecially on Death Row, prisoners are given se...
[]
[]
[ [] ]
5mx87x
what are the benefits that zero-g environments provide to science or manufacturing?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5mx87x/eli5_what_are_the_benefits_that_zerog/
{ "a_id": [ "dc729b8", "dc747z8", "dc7hmsl" ], "score": [ 41, 3, 2 ], "text": [ "At the moment its mainly for science. Not much commercial activity in space yet, outside of communication and observation satellites.\n\nThe main things that benefit from zero G are things to do with c...
[]
[]
[ [], [ "http://www.telegraph.co.uk/news/uknews/1949129/Giant-space-vegetables-could-feed-the-world.html" ], [] ]
1b1vv1
the internal structure of an atomic nucleus, and how they identify their existence.
I've always been curious about this question, but I've found explainations on Wikipedia and other sites a little complex to get my head around. Given how incredibly tiny these types of measurements are, I'm at a loss to get my head around how they even discovered these properties, let alone how they can be readily meas...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1b1vv1/eli5the_internal_structure_of_an_atomic_nucleus/
{ "a_id": [ "c92ta7t" ], "score": [ 2 ], "text": [ "The existence of the nucleus was discovered by noticing that when shooting very tiny positively charged things (positively charged things repel other positively charged things and attract negatively charged things) at a sheet of foil, most of the...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Geiger%E2%80%93Marsden_experiment" ] ]
44xgdz
why is there a price war going on with crude oil, and who is going to win?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/44xgdz/eli5_why_is_there_a_price_war_going_on_with_crude/
{ "a_id": [ "cztkuyd" ], "score": [ 3 ], "text": [ "As with all price wars, everyone loses.\n\nWhat happened was that the US developed new technology to allow for shale-oil manufacturing. This added a whole lot of new oil to the market. Other producers have been unwilling to decrease their product...
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[]
[ [ "https://www.uschamber.com/sites/default/files/aei_perry_us_saudi_oil_production_062014.jpg" ] ]
4tp7oj
we know what potentially happens when the earth warms a couple of degrees, what happens if it slowly gets colder?
What happens to the environment and ecosystems if we experience global cooling?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4tp7oj/eli5_we_know_what_potentially_happens_when_the/
{ "a_id": [ "d5jfjkm" ], "score": [ 3 ], "text": [ "We know quite a bit from records kept during the LIA and now from some paleo research. CO2 levels drop. During the LIA CO2 dropped to ~190ppm from ~280 previous. Arctic ice extended so far south that the north Atlantic was impassable at least som...
[]
[]
[ [] ]
se9yt
emli5: why does unplugging the internet router fix anything?
Obviously you're resetting something, but can anyone explain simply what is being reset that helps and why? Edit: Oops. Just saw I wrote "EMLI5", dunno where the M came from. Thanks for all the good answers!
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/se9yt/emli5_why_does_unplugging_the_internet_router_fix/
{ "a_id": [ "c4dbgot", "c4dbia0", "c4dbkmr", "c4devkc" ], "score": [ 2, 5, 12, 3 ], "text": [ "(More knowledgeable techies please correct me if I'm wrong) I believe it's because the router/modem has a small amount of memory to keep track of the signal it's getting and the s...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Memory_leak" ], [ "foxnew.com", "facebook.com", "cnn.com", "cdn.facebook.com", "foxnews.com", "msn.com", "c.com", "b.com", "d.com", "a.com" ], [] ]
3xeo6x
what happens when tv and radio commercials play twice in a row?
Is that intentional by the company or a mistake on the part of the broadcaster?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3xeo6x/eli5_what_happens_when_tv_and_radio_commercials/
{ "a_id": [ "cy459kn", "cy45bhm", "cy46o49", "cy482q8", "cy48ef7" ], "score": [ 10, 9, 2, 2, 4 ], "text": [ "Advertisers are hoping that the repetition will stick in your mind and make you remember their message. (I own a small business and have done this in the pas...
[]
[]
[ [], [], [], [], [] ]
52e0n9
why, when ironing, it takes infinitely longer than the rest of the entire garment to iron out a crease you accidentally create?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/52e0n9/eli5_why_when_ironing_it_takes_infinitely_longer/
{ "a_id": [ "d7jng0h", "d7jte72" ], "score": [ 68, 11 ], "text": [ "Clothing wrinkles when the fibers are creased. Usually this happens because of pressure, which causes folds in the fiber (think of crumpling a piece of paper).\n\nIroning/pressing works by using a mixture of heat and press...
[]
[]
[ [], [] ]
3bvlpy
how can tesla (the car company) legally name itself after a person (nikola tesla)?
What are the rules with naming your company with the name of another person? I assume I couldn't start a car company tomorrow called "Obama motors"?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3bvlpy/eli5_how_can_tesla_the_car_company_legally_name/
{ "a_id": [ "cspw5en", "cspwbqe" ], "score": [ 4, 3 ], "text": [ "Well you can and it has been done. If a product was named after someone in order to promote the brand or becuase they where in the same industry. Then I would imagine you'd have issues. ", "_URL_0_\n\nI would guess that ...
[]
[]
[ [], [ "http://www.ipwatchdog.com/2011/02/11/trademark-of-sarah-palin/id=15274/" ] ]
5xahr9
why do most electronics run on 110 or 220 volt systems? is there something special about 110 and multiples of 110?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5xahr9/elif_why_do_most_electronics_run_on_110_or_220/
{ "a_id": [ "degjphp", "degjyeq", "degjzfh", "deh4v94" ], "score": [ 6, 15, 7, 3 ], "text": [ "You clearly live in the USA. Electrical power in the USA is supplied as 60 cycles per second alternating current from three phase power lines. These lines are out of phase with e...
[]
[]
[ [], [], [], [] ]
4xm8ii
how does data go from my computer to the rest of the internet? how do isps work?
I vaguely understand that anything I do online goes through an ISP, but how exactly does that work? I use Verizon FIOS so I know that I do stuff on my computer, and it goes through my network interface card (I'm assuming that's what it's called?) which somehow pumps it over to my router over the air, and then my router...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4xm8ii/eli5_how_does_data_go_from_my_computer_to_the/
{ "a_id": [ "d6gn58m", "d6gnxa2" ], "score": [ 2, 3 ], "text": [ "Alternate title: \"Can someone ELI5 networking to me?\"\n\nMy glorious knowledge of networking, instilled in me through studying the first section of the official CCENT manual tells, me it works basically like this:\n\nLet's...
[]
[]
[ [ "Google.com/8.8.8.8", "Google.com", "google.com" ], [] ]
45zgdp
how do services boost facebook likes or twitter/instagram followers so quickly?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/45zgdp/eli5_how_do_services_boost_facebook_likes_or/
{ "a_id": [ "d018l87" ], "score": [ 3 ], "text": [ "They build fake accounts and have them vote/like. The account credentials (login and password) are added to a script that logs in and then votes using each account. You forgot to include reddit in your list." ] }
[]
[]
[ [] ]
2blar9
when you get a flat tire why does the entire tire not deflate?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2blar9/eli5_when_you_get_a_flat_tire_why_does_the_entire/
{ "a_id": [ "cj6esdt", "cj6eum6" ], "score": [ 5, 3 ], "text": [ "Because rubber is rigid, only the part of the tire that has weight on it will be flattened ", "It depends on how large the puncture or tear is. If there is only a small hole it will take a certain amount of pressure ins...
[]
[]
[ [], [] ]
1wr3bc
if an astronaut was falling towards earth, via gravity, would he survive the atmosphere until impact?
If the atmosphere would burn him up, what does it take to survive the atmosphere of Earth.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1wr3bc/eli5_if_an_astronaut_was_falling_towards_earth/
{ "a_id": [ "cf4ltmd", "cf4m6h8", "cf4mh11" ], "score": [ 2, 3, 2 ], "text": [ "I'm going to assume the person is unprotected.\n\n100 kilometers is typically acknowledged to be the edge of space. If someone were to drop from this distance, they would be briefly hit by 360 degree ai...
[]
[]
[ [], [ "http://what-if.xkcd.com/28/" ], [] ]
1mo4se
in the music industry, why does the term "single" exist? aren't all songs technically singles?
In other words, why don't they just say "This artist just released a new song" rather than "This artist just released a new single"?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1mo4se/eli5_in_the_music_industry_why_does_the_term/
{ "a_id": [ "ccb0wt1", "ccb102i", "ccb139k" ], "score": [ 11, 4, 11 ], "text": [ "Most songs on most albums won't ever become singles. Singles are released individually, distinct from the album. Originally they were released on 45 rpm vinyl records, with an A side (the single) a...
[]
[]
[ [], [], [] ]
dzvw3z
why are pickles made from a different type of cucumber than regular store-bought ones?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/dzvw3z/eli5_why_are_pickles_made_from_a_different_type/
{ "a_id": [ "f8ahdsc" ], "score": [ 4 ], "text": [ "You can pickle any kind of cucumber, you just get different textural results. You can also eat them all raw, unpickled. They are the result of different cucumbers being pickled/fermented with different blends of flavors. \n\nI grew up eating w...
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[]
[ [] ]
4f87bb
how does online money work?
If I buy something off Amazon and use my credit card, my credit card company somehow communicates to Amazon "here's the money!" But since that money isn't physically real, how does Amazon know it's actually money? I understand how fiat money works, but a dollar bill relies on security measures that ensure that it's in...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4f87bb/eli5how_does_online_money_work/
{ "a_id": [ "d26p6tf" ], "score": [ 2 ], "text": [ "The money moves virtually from your (or your credit provider's) bank account to that of Amazon. For every dollar in bank accounts there's a dollar bill in the vault.* There's no need to transfer the real money, they just re-allocate it from one a...
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[]
[ [] ]
6tmy4f
what are the deregulation laws for energy, and what are the people who come around to my house to switch energy providers really offering?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6tmy4f/eli5_what_are_the_deregulation_laws_for_energy/
{ "a_id": [ "dllv7d2" ], "score": [ 2 ], "text": [ "They are offering to sell the power distribution company power corresponding to the amount you use at a price you are agreeing to. The power distribution company provides the power you use, and passes along the cost from the power generating com...
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[]
[ [] ]
2drb4t
dns servers and ip adresses
I see this when I'm trying to connect to the internet. I kind of know what an IP address is, but have no clue what a DNS server is, and a quick google only confused me more (it said DNS servers were like a phone book for the internet, which is what I thought IP addresses were)
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2drb4t/eli5_dns_servers_and_ip_adresses/
{ "a_id": [ "cjs9cbp", "cjs9dzy", "cjs9z4o" ], "score": [ 3, 4, 5 ], "text": [ "Basically, from a networking perspective, there is no such thing as a _URL_0_, there are IP addresses. A domain server takes a human recognizable piece of addressing and translates it into a language th...
[]
[]
[ [ "www.example.com" ], [ "www.reddit.com" ], [ "http://en.wikipedia.org/wiki/Internet_Assigned_Numbers_Authority", "https://www.google.de/search?q=my+ip+address", "www.reddit.com" ] ]