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1ah7uu
the gaussian distribution
how you translate it into math, i.e. what the different parts of its function are and why they exist (what is that e doing over there anyway?), and why it might be useful when analyzing waveform(ish) data. it's also ok to explain it to me like i'm 13. i think.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1ah7uu/eli5_the_gaussian_distribution/
{ "a_id": [ "c8xxo8g" ], "score": [ 3 ], "text": [ "LabKitty sees your question sitting here ignored and we weep, for it reminds us of wistful days long ago in which we, too, were unloved, sitting alone at the post-barn-raising festival, or at the home-coming dance, or that time Donny Kerabatsos t...
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[]
[ [] ]
5mz72z
how did chris pratt do the magic trick? (link in description)
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5mz72z/eli5_how_did_chris_pratt_do_the_magic_trick_link/
{ "a_id": [ "dc7hxko", "dc7mpbg" ], "score": [ 68, 7 ], "text": [ "I watched it and figured it out. At 50 second mark he fans through the deck, he's looking at the top cards. He even slows down so he can see the top 3 cards. He then does a few semi false shuffles. The top of the deck is ne...
[]
[]
[ [], [] ]
2ehegq
what do hard drugs do that cause a permanent change to a person's looks.
You all can spot a crackhead a mile away and can usually tell if someone used to use meth. What causes a person's face or body to change so much?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2ehegq/eli5_what_do_hard_drugs_do_that_cause_a_permanent/
{ "a_id": [ "cjzi7np", "cjzkoi9", "cjzlhi7", "cjzmfld", "cjzq4u4" ], "score": [ 5, 2, 2, 2, 2 ], "text": [ "For one thing, they rob you of nutrition because you're too doped up to eat right, and both cocaine and meth give you the appearance of energy without eating....
[]
[]
[ [], [], [ "http://www.google.co.uk/search?site=&source=hp&ei=SpP6U87SBKiP0AWpk4GYAw&q=eva+rausing&oq=eva+rausing&gs_l=mobile-gws-hp.3..0l5.1577.6294.0.7478.12.12.0.7.7.0.169.1294.5j7.12.0....0...1c.1.52.mobile-gws-hp..0.12.670.3.IA6IJk7BOOU" ], [], [] ]
29diln
why is a rejection from the opposite sex not a big deal?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/29diln/eli5_why_is_a_rejection_from_the_opposite_sex_not/
{ "a_id": [ "cijuz6b", "cijv1h0", "cijvb3d" ], "score": [ 3, 3, 2 ], "text": [ "Because there are so so so many other people on the planet. Find someone else who is interested in you. It just takes some patience.", "The reality of the situation is attraction is something that...
[]
[]
[ [], [], [] ]
5wkzw3
why are crops destroyed (instead of stockpiled) to raise prices?
Shouldn't the government attempt to keep as much food stored as possible in event of catastrophe? Grain and dried meat can be stored for decades.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5wkzw3/eli5why_are_crops_destroyed_instead_of_stockpiled/
{ "a_id": [ "deaw6gt" ], "score": [ 5 ], "text": [ "Crops that can be stored are stored. The only crops outright destroyed (in most countries) are those that are spoiled or that are contaminated in some way (normally disease). " ] }
[]
[]
[ [] ]
cuojbh
why does it matter which side is up or down when microwaving bagged popcorn?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/cuojbh/eli5_why_does_it_matter_which_side_is_up_or_down/
{ "a_id": [ "exwgsbu", "exwgxjo", "exwnixi", "exxujt2", "exy0qqn", "exy6xmm", "exy9ffi", "exycgam", "exzgylt", "exzo0nz", "exzp0ub", "ey012vw", "ey0ha63", "ey0u37m" ], "score": [ 17, 10770, 67, 5, 151, 2, 6, 199, 5, 9,...
[]
[]
[ [], [], [], [], [], [ "https://time.com/5218647/healthiest-way-to-make-popcorn/" ], [], [], [], [], [], [], [], [] ]
993a1a
have we advanced enough in science to effectively harness the energy from thunderstorms?(if not what is the biggest hurdle)
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/993a1a/eli5_have_we_advanced_enough_in_science_to/
{ "a_id": [ "e4kjro4", "e4kjrol", "e4kjyi9" ], "score": [ 2, 8, 3 ], "text": [ "You can harness the energy from lightening but what would be the point? It is unpredictable and inconsistent and therefore not a good source of power.", "The biggest hurdle is it simply isn't that p...
[]
[]
[ [], [], [] ]
1zcga3
why does youtube care whether i watch a particular video over mobile or pc?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1zcga3/eli5_why_does_youtube_care_whether_i_watch_a/
{ "a_id": [ "cfsf4ht", "cfsfwxx" ], "score": [ 2, 3 ], "text": [ "It's good to have all of that data on file so they can make decisions. Like, should they invest more in mobile advertising or desktop advertising? How effective are the page designs? And so on.\n\nWith regards to viewing on ...
[]
[]
[ [], [] ]
5udka7
that large halo around the perimeter of the sun when covered in a light layer of cloud.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5udka7/eli5_that_large_halo_around_the_perimeter_of_the/
{ "a_id": [ "ddt92o1" ], "score": [ 2 ], "text": [ "It's the kind of cloud and the ice crystals in it that make that halo. If you were above those clouds looking towards them with the sun behind you, you'd see a rainbow - when you're below those clouds looking towards the sun, you're seeing a ref...
[]
[]
[ [] ]
2yjp5g
why is the fluff in my bellybutton always a blue/grey colour, no matter what colour shirt i am wearing?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2yjp5g/eli5_why_is_the_fluff_in_my_bellybutton_always_a/
{ "a_id": [ "cpa56lf", "cpa6a8o", "cpab7ls", "cpabods", "cpacp0p", "cpacsdk", "cpactos", "cpad1xf", "cpadu1y", "cpadulc", "cpaduts", "cpaeilf", "cpafsfv", "cpag298", "cpah97h", "cpaiw26", "cpamn0p", "cpamr3x", "cpaqxsn", "cpaso7i", "c...
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[ [], [ "http://de.wikipedia.org/wiki/Bauchnabelfussel" ], [], [], [], [], [], [], [], [ "https://www.youtube.com/watch?v=km360qhJUtw&t=2050" ], [], [], [], [], [], [], [], [ "http://www.wikiwand.com/simple/Navel_lint" ], [], [], [], [], [], [], []...
1ed81m
why do the top posts (ever) receive massive amounts of down votes? i.e. (25000|18000) even when they're such positive links (like life saving blood donations or extreme acts of human kindness/charity)?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1ed81m/eli5_why_do_the_top_posts_ever_receive_massive/
{ "a_id": [ "c9z2zw7", "c9z4uvd", "c9z5ae1", "c9zcs54" ], "score": [ 23, 9, 2, 2 ], "text": [ "If I understand correctly, it's because the numbers are somewhat fake: designed to throw off bots so they can't tell when their votes went through. The rating you see is right, bu...
[]
[]
[ [], [ "http://www.reddit.com/wiki/faq#wiki_how_is_a_submission.27s_score_determined.3F" ], [], [] ]
24mhlf
single-member districts, multi-member districts, and proportional representation
I know the United States electoral system makes use of single member districts in the voting process, but I've recently learned that it wasn't always this way. Up through the early 1800s, some districts were multi-member districts. Is this the same as proportional representation? How does a multi-member district work?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/24mhlf/eli5_singlemember_districts_multimember_districts/
{ "a_id": [ "ch8lv2z", "ch8m7f7" ], "score": [ 2, 2 ], "text": [ "The House actually had a few multimember districts as recently as the late 1960s, and they still are used in a handful of state legislatures. But no, they were not run the same as a proportional representation system. Things...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Party-list_proportional_representation" ] ]
30wzne
why are some women's periods heavier than others? does it mean their womb is more hospitable?
Assuming the heavier periods are caused by more tissue being built during the menstrual cycle, would the womb be more ideal for conception and growth of a baby if periods are generally heavier? Likewise, if a woman has light periods is her womb less hospitable? Or is there another reason to heavy/light periods? Does th...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/30wzne/eli5why_are_some_womens_periods_heavier_than/
{ "a_id": [ "cpwmcaj" ], "score": [ 5 ], "text": [ "No, not necessarily. In fact, it can often mean exactly the opposite. There are many women who experience very heavy and painful periods due to endometriosis, a disorder where the lining of the uterus does not only grow inside of the uterus but a...
[]
[]
[ [] ]
2gmdl0
the feud between letterman and leno.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2gmdl0/eli5_the_feud_between_letterman_and_leno/
{ "a_id": [ "ckkh8be", "ckkkj7u", "ckkknsm" ], "score": [ 2, 2, 14 ], "text": [ "Letterman came on after Johnny Carson and assumed he would take over the coveted spot when Johnny retired. Leno was a frequent guest on Carson, so the gig was given to him. Letterman got a gig on anoth...
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[]
[ [], [], [] ]
62zddw
how do animal eggs get their nutrients?
This may be a silly question, but how do animals hatched from eggs get their nutrients? From my very limited knowledge, I know that mammals obviously have their young grow inside of them, and they are provided with their nutrients and air through the umbilical cord, connecting them to their mother. But how do eggs get ...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/62zddw/eli5_how_do_animal_eggs_get_their_nutrients/
{ "a_id": [ "dfq52yj" ], "score": [ 3 ], "text": [ "The yolk contains the nutrients needed for the animal to grow. Think of the yolk as the place a of the egg. The fetus is attached by an umbilical cord to the yolk. By the time the animal is fully grown, the yolk nutrients have been used up." ] ...
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[ [] ]
5sw719
the difference between a.i., deep and machine learning.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5sw719/eli5_the_difference_between_ai_deep_and_machine/
{ "a_id": [ "ddiax18" ], "score": [ 2 ], "text": [ "Deep Learning is a subsection of Machine Learning and Machine Learning is a technique leveraged to achieve an A.I.\n\nArtificial Intelligence is the term given to a machine exhibiting intelligence. An example would be a robot recognizing that it ...
[]
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[ [] ]
3ibcb5
when did we start eating mouldy cheese?
I mean, no normal person would suddenly decide to eat some mouldy cheese, so how we all start eating it?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3ibcb5/eli5_when_did_we_start_eating_mouldy_cheese/
{ "a_id": [ "cuewtgr" ], "score": [ 6 ], "text": [ "Probably within a few months of making cheese back in antiquity. \n\nFor most of human history we were living close to starvation. This means that humans often sought food in odd places. Once our ancestors domesticated mammals we would notice tha...
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[ [] ]
3nh2b5
what is gram staining?
So I have read a wikipedia article and a few other articles about it but I dont really get it. Could somebody explain it tom me. Especially what is the difference between gram + and gram- bacteria and also what is a simple procedure for doing that?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3nh2b5/eli5_what_is_gram_staining/
{ "a_id": [ "cvnz7xq", "cvo2lfb" ], "score": [ 5, 3 ], "text": [ "So bacteria have thick cell walls exterior to their membranes composed of proteins and sugars. Bacteria are broadly categorized into bacteria that have very thick walls and those that have relatively thin walls. The gram sta...
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[]
[ [], [] ]
44j606
why do singers press their ear when trying to hit a high note or harmonize?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/44j606/eli5_why_do_singers_press_their_ear_when_trying/
{ "a_id": [ "czqjzpq" ], "score": [ 7 ], "text": [ "To hear themselves better. Try it yourself. It mutes external sounds and your can hear your own voice better to ensure you're on key.\n" ] }
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[ [] ]
5h6qn2
if a king of one country marries the queen of another, how does this affect inheritance of their kingdoms?
For example, the King of the North marries the Queen of the South uniting the North and the South. If they have no children and one dies, does the other become ruler of their dead spouse's kingdom? If they have children and one dies, does their child inherit the dead parent's title while the surviving parent is still...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5h6qn2/eli5_if_a_king_of_one_country_marries_the_queen/
{ "a_id": [ "daxt1c9", "daxtaog", "day73pj", "day7x7h", "dayg6h4", "dayoe50" ], "score": [ 8, 2, 6, 2, 3, 2 ], "text": [ " > If they have no children and one dies, does the other become ruler of their dead spouse's kingdom?\n\nNot usually.\n\nFor example: M...
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[ [], [], [], [], [], [] ]
axol6g
why are lymph nodes so easy to be swollen and inflamed? aren't they police stations of our body?
Aren't they where white cells concentrate? Shouldn't they handle antigens very fast?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/axol6g/eli5_why_are_lymph_nodes_so_easy_to_be_swollen/
{ "a_id": [ "ehux72x", "ehuxoks", "ehuxx2k", "ehv12q6" ], "score": [ 5, 3, 5, 2 ], "text": [ "It means they're workin. Something is being killed and drained in your body. Think more \"swollen\" than \"inflamed.\" ", "They are, but when you have a big emergency you tend ...
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[]
[ [], [], [], [] ]
4xeclu
how did gold, silver, and bronze specifically become the iconic symbols of 1st, 2nd, and 3rd in competitions.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4xeclu/eli5_how_did_gold_silver_and_bronze_specifically/
{ "a_id": [ "d6eyvvg", "d6fa57k" ], "score": [ 14, 2 ], "text": [ "Being both common and given value.\n\nBronze is a mix of copper and... On mobile, but I want to say iron. Looks nice, but isnt all that valuable.\n\nSilver is more valuable, but tarnishes.\n\nGold is a symbol of wealth and ...
[]
[]
[ [], [] ]
6tb8tz
how did the asterisk end up being used for correcting an incorrectly spelled word?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6tb8tz/eli5_how_did_the_asterisk_end_up_being_used_for/
{ "a_id": [ "dljc298" ], "score": [ 9 ], "text": [ "I think that relates to their use as footnotes. An asterisk* after a word refers to a passage at the bottom of the page which has clarification or extra information regarding the word.\n\nI think that with the advent of instant messaging, the met...
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[ [] ]
28sr1b
does the 2nd amendment protect the use of armed drones?
If not, why?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/28sr1b/eli5_does_the_2nd_amendment_protect_the_use_of/
{ "a_id": [ "cie3khw" ], "score": [ 6 ], "text": [ "So, the leading Supreme Court has is a case called *Heller*. In *Heller* the Supreme Court basically said that the 2nd Amendment provided broad protection, and that restrictions on the kinds of weapons people can own are almost always going to b...
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[ [] ]
8q0ddb
why does sleeping restore the body but just sitting or lying still while awake doesn’t (as much)?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8q0ddb/eli5_why_does_sleeping_restore_the_body_but_just/
{ "a_id": [ "e0fg3q2", "e0fgduq", "e0fh75p" ], "score": [ 3, 3, 2 ], "text": [ "Think of your body as a smartphone , when you plug it in the charger and use it it'll charge slower but if you turn it off it'll charge much faster because it's not consuming energy while charging\n\n",...
[]
[]
[ [], [], [ "http://www.reddit.com/r/explainlikeimfive/wiki/how_to_search", "https://www.reddit.com/r/explainlikeimfive/wiki/detailed_rules", "http://www.reddit.com/message/compose?to=%2Fr%2Fexplainlikeimfive&subject=Can%20you%20review%20my%20thread" ] ]
1uv4tl
why would someone choose a roth 401k vs traditional 401k and which should a 22 yo use?
I just started an engineering job and have gotten so many mixed answers on the topic. I was hoping some of you could clear things up.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1uv4tl/eli5why_would_someone_choose_a_roth_401k_vs/
{ "a_id": [ "celylzw", "celyv5r", "celz5b4" ], "score": [ 3, 3, 2 ], "text": [ "The traditional 401K uses pre-tax money to make contributions to your retirement account, while the Roth 401K uses after-tax money. The primary difference is that contributions to the Roth 401K grow tax...
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[]
[ [], [], [] ]
22clt7
why do some movies play on tv over and over again?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/22clt7/eli5_why_do_some_movies_play_on_tv_over_and_over/
{ "a_id": [ "cglhpup", "cgli0b2", "cglita3", "cglla20" ], "score": [ 20, 6, 2, 3 ], "text": [ "If you're talking about Fifth Element you shouldn't even question it.", "Because movies are actually pretty cheap for television stations to show.\n\nI remember reading about ...
[]
[]
[ [], [], [], [] ]
6hnnfo
what does "kosher" means and what are the benefits of eating kosher food?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6hnnfo/eli5_what_does_kosher_means_and_what_are_the/
{ "a_id": [ "dizobl4", "dizogme" ], "score": [ 2, 2 ], "text": [ "Kosher foods conform to Jewish dietary laws, called kashrut. Kosher foods are those that may be eaten while following those laws.\n\nThis is similar to the concept of halal in Islam, although not necessarily specific to food...
[]
[]
[ [], [] ]
3r4cdq
why do lights sometimes flash off for a split second?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3r4cdq/eli5_why_do_lights_sometimes_flash_off_for_a/
{ "a_id": [ "cwkrgwe" ], "score": [ 2 ], "text": [ "The power line coming into your house or apartment has quite a bit of \"noise\" on it. It isn't a perfect 60 cycles per second sine wave, although that is the goal. \n \nYour power is part of a big network, and the demands on the network are ...
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[]
[ [] ]
5qju0b
why is the flag of switzerland square?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5qju0b/eli5_why_is_the_flag_of_switzerland_square/
{ "a_id": [ "dczt6hs" ], "score": [ 3 ], "text": [ "The soldiers from all differnt cantons decided on unifing the crosses with a red background. In 1815, swiss batallions created flags with the white cross and the red background. As the sign on the clothings was square they took the square form to...
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[ [] ]
72hht3
court room sketch artists: first, do they draw super fast or have great memories? second, is there any good reason to use them in a world with compact, silent, discreet cameras?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/72hht3/eli5_court_room_sketch_artists_first_do_they_draw/
{ "a_id": [ "dnikfzs", "dnikls0", "dnikobp" ], "score": [ 6, 2, 2 ], "text": [ "Some courts (or at least cases) have a no camera policy. I think a lot of the reason they still use sketch artists is more about tradition than anything else though. I'm sure they draw fast (by definiti...
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[]
[ [], [], [] ]
8jgvh9
. how does airbnb affect rent in a city like nyc?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8jgvh9/eli5_how_does_airbnb_affect_rent_in_a_city_like/
{ "a_id": [ "dyzk1y1", "dyzmwer" ], "score": [ 5, 9 ], "text": [ "Drives it up, because now apartments are revenue-generators. All it takes is for some people to start renting apartments for the purpose of operating multiple AirBNBs and you will see demand go up, supply go down, and prices...
[]
[]
[ [], [] ]
7b81dr
why do pressurized cans get cold when you shake them?
Edit: I’m talking about like a can of hairspray or can of air to clean a keyboard
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7b81dr/eli5_why_do_pressurized_cans_get_cold_when_you/
{ "a_id": [ "dpfzcyy", "dpg4yt4", "dpg9uky", "dpgckoo", "dpgja7l", "dpgjjga", "dpgn963", "dpgngqu", "dpgnn1u", "dpgqw3k", "dph2569", "dph3ma4" ], "score": [ 3, 293, 2798, 9, 8, 3, 346, 3, 2, 2, 4, 4 ], "text": [ ...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [ "https://en.wikipedia.org/wiki/Liquid_cooling", "https://en.wikipedia.org/wiki/Heat_exchanger" ], [] ]
f7pp72
how do police body cams work, including what the wearer can control, how they’re charged and stored, and where the footage is kept?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/f7pp72/eli5_how_do_police_body_cams_work_including_what/
{ "a_id": [ "ficxa5s", "fid3c54" ], "score": [ 4, 3 ], "text": [ "Officer turns on/off. \n\nCharged at police station. \n\nDownloaded and stored at police station.", "Body camera is always on and recording, and “pre-buffers” 30 seconds of recorded footage before the record button is ac...
[]
[]
[ [], [] ]
8gp1pi
how do fireworks get their colors? and how can some have multiple colors at the same time?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8gp1pi/eli5_how_do_fireworks_get_their_colors_and_how/
{ "a_id": [ "dydfztm" ], "score": [ 2 ], "text": [ "Some metal burns different colours, copper makes green for example. So to make a multiple colour firework you mix multiple small charges with different trace metals. " ] }
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[ [] ]
3g8pm2
what will happen if donald trump runs as an independent and gets a significant amount of the vote?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3g8pm2/eli5_what_will_happen_if_donald_trump_runs_as_an/
{ "a_id": [ "ctvvoie", "ctvvrln", "ctvx2pf", "ctw4ulq" ], "score": [ 72, 9, 4, 5 ], "text": [ "He will be peeling those votes away from the Republican Party, so essentially he would be helping the Democratic candidate. ", "Donald Trump as an independent would divide th...
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[]
[ [], [], [], [] ]
tjxnx
the difference between 1 and 2-tailed statistical tests.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/tjxnx/eli5_the_difference_between_1_and_2tailed/
{ "a_id": [ "c4n8z03" ], "score": [ 4 ], "text": [ "You use a 1 tailed t test when you're sure of directionality. For instance we know that more studying = better grades, so you can use a 1 tailed test for that. \n\nA 2 tailed t test is used when you're not sure of the directionality of the data. ...
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[ [] ]
5fpv2h
why can't the heat from a volcano be used to make electricity?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5fpv2h/eli5_why_cant_the_heat_from_a_volcano_be_used_to/
{ "a_id": [ "dam1ged", "dam1llq", "dam1nnl", "dam1w4w" ], "score": [ 2, 2, 8, 3 ], "text": [ "We are. It is called geothermal energy.\n\n_URL_0_", "We are using that. That is what geothermal power plants use. They dig down till they are close enough to the magma chamber...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Geothermal_energy" ], [], [], [] ]
3myynp
why don't the inside of water pipes rust and contaminate drinking water?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3myynp/eli5_why_dont_the_inside_of_water_pipes_rust_and/
{ "a_id": [ "cvjbc1v", "cvjbg3x", "cvjbhr9" ], "score": [ 2, 2, 5 ], "text": [ "Rust is air + iron and there normally isn't much of either in the water filled copper pipes that run through your house. ", "They used to, when they were made of iron. Fortunately, that practice en...
[]
[]
[ [], [], [] ]
8aq1nw
why are barrel bombs so bad?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8aq1nw/eli5_why_are_barrel_bombs_so_bad/
{ "a_id": [ "dx0lcys", "dx0lgmc", "dx0tiv9", "dx0xizn", "dx105eg", "dx1av23", "dx1elgw", "dx1io5r" ], "score": [ 11, 331, 21, 13, 46, 2, 2, 2 ], "text": [ "From what I have read about them, there are two reasons they are bad. A barrel bomb is...
[]
[]
[ [], [], [], [], [], [], [ "https://www.popsci.com/thermobaric-bombs-and-other-nightmare-weapons-syrian-civil-war#page-3" ], [] ]
67981x
curing disease
ELI5, Ok im not a doctor and im not trying to bag on their work at all, but i just find it so hard to believe that with all the advancements in technology and medicine we still can't cure things like cancer, aids, herpes, ect... what makes it so difficult to accomplish finding a cure especially with all the charities a...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/67981x/eli5_curing_disease/
{ "a_id": [ "dgolntc", "dgolwoc", "dgonb43", "dgossq8" ], "score": [ 5, 7, 2, 2 ], "text": [ "Ok, a few things to keep in mind. Cancer isn't a infection, or even a single disease. It's the uncontrolled growth of the body's own cells. As such, finding a medication or ...
[]
[]
[ [], [], [], [] ]
3dtf31
what is the equivalent for cardinal points north, south, east, and weast in space?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3dtf31/eli5_what_is_the_equivalent_for_cardinal_points/
{ "a_id": [ "ct8gp0j", "ct8gqx5", "ct8h8pe", "ct8m2y4" ], "score": [ 3, 6, 46, 12 ], "text": [ "The closest equivalents I can think of are galactic north and south, towards the core or the rim, and spinward or reverse. I'm sure there are actual technical terms, but hopefull...
[]
[]
[ [], [], [], [] ]
2r0ur0
why is a handwritten signature the universally known and accepted way to bind yourself to an agreement and things of the like?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2r0ur0/eli5_why_is_a_handwritten_signature_the/
{ "a_id": [ "cnbc7xi", "cnbco79", "cnbcrov", "cnbg21v", "cnbk370", "cnbkf0x", "cnbqxon" ], "score": [ 28, 11, 2, 6, 3, 5, 2 ], "text": [ "Tradition. It's certainly not secure, but in the days before computers, stamps and signatures were all we had. "...
[]
[]
[ [], [ "http://boss.blogs.nytimes.com/2013/12/17/mastering-the-chinese-chop-system/" ], [], [ "http://kotaku.com/5960054/japans-traditional-seals-get-very-very-nerdy" ], [], [], [] ]
32qpjz
why "i believe in equality but i'm not a feminist" is a dreaded phrase.
So, I seriously do try my best to support everything that has to do with equality of men and women, but (and maybe this is the unknown misogynist inside of me) I don't understand why its bad for me to want equality while not wanting to associate myself with modern-day feminists. So reddit, please someone explain to me ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/32qpjz/eli5_why_i_believe_in_equality_but_im_not_a/
{ "a_id": [ "cqdpnc5", "cqdpnn5", "cqdprwd", "cqdpwt4", "cqdq5wl", "cqdvct0" ], "score": [ 2, 7, 2, 5, 3, 2 ], "text": [ "What do you think feminism is? In general, the people who seem to think that they don't want to be associated with it have a very skewed...
[]
[ "https://youtu.be/uOmIIAact4s?t=23s" ]
[ [], [], [], [], [], [] ]
2hx7f2
what is the force that drives gravity? if two planets are placed next to each other, they will gravitate towards one another, seemingly creating energy out of nothing. how can this be?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2hx7f2/eli5what_is_the_force_that_drives_gravity_if_two/
{ "a_id": [ "ckwti29", "ckwtotn" ], "score": [ 4, 8 ], "text": [ "There is no force that drives gravity. Gravity is one of the four [fundamental forces](_URL_0_) of the universe. These four forces drive everything else.\n\nIt's really just part of the base code of the universe.\n", "Th...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Fundamental_interaction" ], [] ]
7046v6
why there aren't any human size insects?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7046v6/eli5why_there_arent_any_human_size_insects/
{ "a_id": [ "dn0906f", "dn09be8", "dn0a693", "dn0atcq", "dn0m6ji", "dn0nfye", "dn0nrwj", "dn0o6sz", "dn0oato", "dn0906f", "dn09be8", "dn0a693", "dn0atcq", "dn0m6ji", "dn0nfye", "dn0nrwj", "dn0o6sz", "dn0oato" ], "score": [ 9, 64, ...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [] ]
6u1h03
how do football, soccer players make curly ball kicks?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6u1h03/eli5_how_do_football_soccer_players_make_curly/
{ "a_id": [ "dlp5cv2" ], "score": [ 2 ], "text": [ "They put spin on the ball by changing the way their foot strikes the ball. A bit like the way you put spin on a snooker or pool ball by not hitting it head on.\n\nAs it spins, the air is dragged round with it and creates different aerodynamic fo...
[]
[]
[ [] ]
4maen6
why does sadness or being down occasionally feel like a relief?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4maen6/eli5_why_does_sadness_or_being_down_occasionally/
{ "a_id": [ "d3u9104" ], "score": [ 2 ], "text": [ "Look at it in this scenario, a loved one has been deathly ill for a long time. You've had to sacrifice your time and had to endure a great many inconveniences and financial pressures due to the want and need to help this person. Your income has ...
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[ [] ]
2uagnn
why is minced meat not marinated like steak?
Does it not work?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2uagnn/eli5_why_is_minced_meat_not_marinated_like_steak/
{ "a_id": [ "co6mlhc" ], "score": [ 2 ], "text": [ "It will work however mincing will give a much, much greater surface area even if it is in a pattie or clump.\n\nTry using a slightly weaker version of the marinade or shorten the marinade time.\n\nMeat is meat but it's physical state will affect ...
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[ [] ]
6x8czs
why do students tend to separate by race in their teen years?
A bit of context: Years ago when I was going through high school I noticed that the racially diverse group of friends I had in middle and elementary school had become entirely White (I am White), and my once close friends who were Black or Asian, Hispanic, etc also tended to associate with people of their own race. Is ...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6x8czs/eli5_why_do_students_tend_to_separate_by_race_in/
{ "a_id": [ "dmdwrl5", "dmdxdha", "dmdxqaz", "dme1n4f" ], "score": [ 10, 27, 7, 6 ], "text": [ "Most people are just more comfortable with people of similar cultures. I found people in my high school separated by wealth more so than skin color.", "People separate by sha...
[]
[]
[ [], [], [], [] ]
6batpq
why is it said/taught in economics and finance that companies want to make "zero" profit? shouldn't they want to make as much profit as possible?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6batpq/eli5_why_is_it_saidtaught_in_economics_and/
{ "a_id": [ "dhl2pdk", "dhl4q6b", "dhl5s0t" ], "score": [ 9, 10, 5 ], "text": [ "They have to pay taxes on the profit. No profit, no taxes. This means, all the money you make (the profit), you invest it into improving the company, buying stuff, before the year is over. No profit, n...
[]
[]
[ [], [], [] ]
2yutwo
if i had a space ship parked outside a black hole's event horizon, and i launched a probe tethered to the ship by an information carrying wire beyond the event horizon, would that probe be able to relay information about the inner workings of the black hole back to the ship?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2yutwo/eli5_if_i_had_a_space_ship_parked_outside_a_black/
{ "a_id": [ "cpd5hib", "cpd5ipe", "cpd76mf" ], "score": [ 11, 2, 2 ], "text": [ "The wire would be using electrons or light to move data, neither of which could exit the event horizon.\n\nThe wire would also shear under its own weight, no material in the universe can withstand the ...
[]
[]
[ [], [], [] ]
2pkmz6
lf our inside organs don't have nerves, how can we still feel when we're in pain?
For example we can't feel internal bleeding but we know when our appendix hurts or our stomach.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2pkmz6/eli5_lf_our_inside_organs_dont_have_nerves_how/
{ "a_id": [ "cmxjjxw" ], "score": [ 2 ], "text": [ "I think this is a pretty straight forward explanation \n\n_URL_0_" ] }
[]
[]
[ [ "http://www.quora.com/Is-it-possible-to-feel-pain-in-any-of-your-internal-organs" ] ]
5r84pm
why is filling out tax forms so difficult?
Edit: *are
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5r84pm/eli5why_is_filling_out_tax_forms_so_difficult/
{ "a_id": [ "dd54w9z", "dd58dwi" ], "score": [ 4, 4 ], "text": [ "It really depends on how complex your finances are.\n\nIf you have no investments or property or inheritance and so on then doing your taxes is downright simple.\n\nWith modern, online tax software it walks you through the s...
[]
[]
[ [], [] ]
3wuut0
when companies slap the star wars logo and characters on their products does disney pay for advertising, or do the companies pay for using their license?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3wuut0/eli5_when_companies_slap_the_star_wars_logo_and/
{ "a_id": [ "cxz9dn6", "cxz9mlm" ], "score": [ 3, 2 ], "text": [ "Most companies pay for the license, a lucky few might break even where the deal is mutually beneficial. ", "To judge from the number of cases I've seen, in which venders were threatened with prosecution by Disney via its...
[]
[]
[ [], [] ]
7wilcc
why does live music sound so good and recordings of live music sound so bad?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7wilcc/eli5_why_does_live_music_sound_so_good_and/
{ "a_id": [ "du0na1b", "du12ksh" ], "score": [ 7, 2 ], "text": [ "Because the microphones where made for a crowd and they usually use a microphone that records the show through the speakers not the microphones \nSo that way it is as if you were recording music coming from your speakers", ...
[]
[]
[ [], [] ]
3yuv53
what will happen to local pds when autonomous vehicles reduce income though speeding tickets?
I'm assuming that in the coming years self-driving vehicles will significantly reduce the quantity of moving violations issued in the United States. Given that many municipalities rely on a ticket quota as income, what will happen to make up for the lost revenue? I see it working out in one of two ways. Either lar...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3yuv53/eli5_what_will_happen_to_local_pds_when/
{ "a_id": [ "cygtje7", "cygtmzz" ], "score": [ 2, 2 ], "text": [ "They'll likely have fewer officers tasked with dealing with traffic and vehicle related stuff.\n\nThat could mean shrinking the police department (since they need fewer bodies) or an increased headcount of officers in other ...
[]
[]
[ [], [] ]
3x66aa
how will the new cisa bill affect the average citizen?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3x66aa/eli5_how_will_the_new_cisa_bill_affect_the/
{ "a_id": [ "cy1zy03", "cy207c3", "cy22l1j", "cy2323o", "cy239xy", "cy23ly0", "cy24gqq", "cy24mxj", "cy25epy", "cy25fhw", "cy25lb4", "cy25z4k", "cy25z92", "cy2687s", "cy2738w", "cy27cj9", "cy27xil", "cy28i8i", "cy2a957", "cy2asp2", "c...
[]
[]
[ [], [], [], [ "https://en.wikipedia.org/wiki/First_they_came_" ], [], [], [ "http://motherboard.vice.com/read/lawmakers-have-snuck-cisa-into-a-bill-that-is-guaranteed-to-become-a-law" ], [], [], [], [], [], [], [], [ "https://en.wikipedia.org/wiki/David_Petraeus" ], [...
399n3x
how life changing would it be if you gave someone from a very poor country $500? could they survive for a year with that money, for example?
die
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/399n3x/eli5_how_life_changing_would_it_be_if_you_gave/
{ "a_id": [ "cs1jlxm", "cs1m7k3", "cs1mtw2", "cs1nu8x" ], "score": [ 11, 7, 2, 9 ], "text": [ "I just read an article today about someone who is doing that. They give them $1000 spaced out over a year's time. Some people change their lives, some just buy a few things, other...
[]
[]
[ [ "http://www.huffingtonpost.com/2015/06/04/givedirectly-cash-transfers_n_7339040.html" ], [ "https://www.wikiwand.com/en/Microfinance", "http://www.oecd.org/dac/effectiveness/34428351.pdf", "http://data.worldbank.org/country/central-african-republic" ], [], [] ]
3eeg4m
how does china go from an "overheated" economic perpetual powerhouse to an economic crisis seemingly in less than a year?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3eeg4m/eli5_how_does_china_go_from_an_overheated/
{ "a_id": [ "cte6ywk" ], "score": [ 2 ], "text": [ "When the stock market has more investment in it than is justified by it's actual value, we call it a 'bubble'. The price of stocks is way too high, and people are profiting on it's rise, but eventually that bubble bursts.\n\nReal growth happens i...
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[]
[ [] ]
3ra5pc
how are people's ideas not stolen when they propose them to a company in a sales pitch?
Im talking along the lines of something that would have trouble being copyrighted, such as a website design.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3ra5pc/eli5how_are_peoples_ideas_not_stolen_when_they/
{ "a_id": [ "cwm8n63" ], "score": [ 6 ], "text": [ "Fair warning, I sell IP for a living.\n\nBasically, we are very careful what we share when we are selling. We show just enough to let you see the potential, but not enough that you are able to duplicate the work without us. \n\nSure, you may see...
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[]
[ [] ]
2m0gmo
what would have to happen for the price of college tuition in the us to go down?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2m0gmo/eli5_what_would_have_to_happen_for_the_price_of/
{ "a_id": [ "clztmdm", "clztxw7", "clzu2d5" ], "score": [ 2, 3, 2 ], "text": [ "People would have to stop paying for it, supply and demand, or the government/industry would have to subsidize it.\n\nFor option 1, the university would have to adapt to the market, the demand for unive...
[]
[]
[ [], [], [] ]
3caa0w
how exactly is internet piracy not theft of intellectual property?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3caa0w/eli5_how_exactly_is_internet_piracy_not_theft_of/
{ "a_id": [ "cstnvmc" ], "score": [ 3 ], "text": [ "The *potential* part in the \"loss of potential profit\". It's been well established in legal precedent that it can't be persecuted as theft for the exact reason that it *isn't* theft, it's copyright infringement, which is a completely different ...
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[]
[ [] ]
ci0syb
the physics behind seeing water on the road in a distance even though it’s not there.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ci0syb/eli5_the_physics_behind_seeing_water_on_the_road/
{ "a_id": [ "ev0ask4", "ev0ievg", "ev0j6ec", "ev0k8ho", "ev0ksxu", "ev0l9gu", "ev0mzd6", "ev0qh9g", "ev0xdij" ], "score": [ 40, 3, 2, 3, 2, 2, 2, 9, 2 ], "text": [ "It's because of light refracting through the heated air just above th...
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[]
[ [], [], [], [], [], [], [], [], [] ]
22r4z8
why do you always see the remains of truck tires on the highway?
I always tend to see parts of them when driving on the highway. One of my good friends also got into a near fatal accident due to an explosion from one of these. Is it the fact that they still let semi trucks use retreads (despite the fact they've outlawed them for consumers)? Is it poor maintenance? Something el...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/22r4z8/eli5_why_do_you_always_see_the_remains_of_truck/
{ "a_id": [ "cgpkwqv", "cgpkz6a" ], "score": [ 3, 5 ], "text": [ "I'm thinking it's poor retreading work. I will say that it's not much different than when a normal car tire blows out and d'être ads, the difference is that trucks do way more miles on the highway than cars so you will see m...
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[]
[ [], [ "http://www.stricktrailers.com/dryvantrailers/customtrailers/images/securing-cargo/large.jpg" ] ]
8umrvo
why aren't there more countries with nuclear capabilities? we've had this technology for over 70 years surely more countries are capable of developing nukes?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8umrvo/eli5_why_arent_there_more_countries_with_nuclear/
{ "a_id": [ "e1gidyd", "e1gie6v", "e1gieuu", "e1gk4i6", "e1gs40z" ], "score": [ 6, 2, 17, 2, 7 ], "text": [ "It’s extremely expensive, most countries would not be able to afford it.\n\nThe world takes non-proliferation very seriously, so any country that did try wou...
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[]
[ [], [], [], [], [] ]
3eq4am
did the mafia really take care of general folks?
I know that Italians faced enormous racism and isolation coming to this country in the very beginning, eventually this led to The Mafia becoming popular and I am wondering if they really did take care of their own or if they just extorted everyone?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3eq4am/eli5_did_the_mafia_really_take_care_of_general/
{ "a_id": [ "cthbr48", "cthdi2j", "cthidj8" ], "score": [ 3, 2, 2 ], "text": [ "They were not nice people to work with, but if you left them alone they usually left you alone and the neighbourhoods the bosses (or at least their children) lived had extremely low crime rates. ", ...
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[ [], [], [] ]
5cuqo2
what causes "sensitive teeth"
Biting into anything cold makes my front teeth scream out in agony. Same with my upper right molars too. Why is that?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5cuqo2/eli5_what_causes_sensitive_teeth/
{ "a_id": [ "d9zkr5c", "d9zl912" ], "score": [ 7, 5 ], "text": [ "Exposed dentin causes sensitivity. If you don't take care of your teeth, the enamel erodes and decays. I'd recommend switching to a toothpaste and mouthwash designed for sensitive teeth. They have been shown to repair enamel...
[]
[]
[ [], [ "http://queenofdentalhygiene.blogspot.com/2014/09/got-sensitive-teeth.html" ] ]
1q57gb
why does my laser pointer have a tiny moving dots around it?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1q57gb/eli5_why_does_my_laser_pointer_have_a_tiny_moving/
{ "a_id": [ "cd9ayp5" ], "score": [ 7 ], "text": [ "The speckles are called an interference pattern. Laser light is monochromatic, so that if light is taking two paths to your eye and if one of them is half a wavelength longer, they will cancel out.\n\nTechnically white light does this too, but i...
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[]
[ [] ]
1wjxnh
what is all the noise while a home printer is powering up or down?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1wjxnh/eli5what_is_all_the_noise_while_a_home_printer_is/
{ "a_id": [ "cf2no82", "cf32r82" ], "score": [ 7, 2 ], "text": [ "Basically, moving the head to and from the sleep position (where the head is protected from dust and other wear), self check of motorised parts, and then cleaning the print head in that order.", "Take the case off - watc...
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[ [], [] ]
3miafh
why does secondhand smoke smell so much worse when i'm not smoking a cigarette?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3miafh/eli5_why_does_secondhand_smoke_smell_so_much/
{ "a_id": [ "cvfb4pt", "cvffq83" ], "score": [ 2, 6 ], "text": [ "When you're smoking a stogie, you have a couple different factors going on that dampens the smell of the smoke, but the main one is that you have the cigarette flavor in your mouth. This easily overpowers the smell of the su...
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[]
[ [], [] ]
9hlyp0
why does every time i install a game on steam, it installs visual c++ or other such software? can't it detect it's already installed?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9hlyp0/eli5_why_does_every_time_i_install_a_game_on/
{ "a_id": [ "e6d0uvv" ], "score": [ 2 ], "text": [ " It's probably installing a different version. You need to have installed the same runtime library version the game was built against. If they are already installed it'll be detected, if they are a different version, they will autoinstall." ] }
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[ [] ]
1i5ahn
the difference between functional and imperative programming
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1i5ahn/eli5_the_difference_between_functional_and/
{ "a_id": [ "cb14ro8" ], "score": [ 6 ], "text": [ "Imperative programming, which is used by the majority of programming languages today, is a sort of recipe - a series of steps. Put ingredients in a bowl, mix, bake. Put a toothpick in it, if the toothpick isn't dry, wait another 5 minutes, repe...
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[ [] ]
3rqazs
how do next gen consoles allow you to start playing the game with only minimal downloaded content?
I'm currently downloading Black Ops III and only got to 37% since I was Netflixing pretty hard. To my amazement it just told me it was ready to play. How do programmers allow for this to happen so early? What is in that 37% downloaded? Would I run into a problem playing a certain level in campaign too soon? (BO3 unlock...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3rqazs/eli5_how_do_next_gen_consoles_allow_you_to_start/
{ "a_id": [ "cwqele7" ], "score": [ 2 ], "text": [ "So let's say Black Ops III has ten chapters. It has downloaded the first two chapters and prompted you that it's ready to play. And as you're playing, it'll download the rest of the chapters of the single player campaign. I'm not sure about the m...
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[ [] ]
2ov07f
i had a really good question for eli5, but i forgot it as i went to submit. why do i forget some things so quickly with absolutely no recollection, only to (sometimes) randomly remember later?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2ov07f/eli5_i_had_a_really_good_question_for_eli5_but_i/
{ "a_id": [ "cmqrdbp" ], "score": [ 2 ], "text": [ "As far as I recall, there was a study beeing done, which found that doorways is linked to memory loss." ] }
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[ [] ]
6re4tx
how can such a tiny amount of fentanyl kill a person, physiologically what does it do in the human body.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6re4tx/eli5_how_can_such_a_tiny_amount_of_fentanyl_kill/
{ "a_id": [ "dl4cp33", "dl4d5a4" ], "score": [ 2, 2 ], "text": [ "Fentanyl is a drug classified as an opiod, the way it works is that it binds to receptors primarily on our central nervous system known as ''mu'' ''kappa'' and ''delta'' these receptor are activated by the drug, when they're...
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[ [], [] ]
1pbiss
when i spit my toothpaste into the sink why does the substance react strangely with water around the plughole?
When I spit a mixture of toothpaste and I'm guessing bacteria/saliva into the sink parts of the mixture react in an odd way around the plughole, tiny parts of the paste seem to 'run away' from the base of a blob or 'puddle' toothpaste. It's almost as if it were breaking down.. It's quite hard to describe so I'm sorry i...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1pbiss/eli5_when_i_spit_my_toothpaste_into_the_sink_why/
{ "a_id": [ "cd0p0fw" ], "score": [ 2 ], "text": [ "You've basically made all the right observations - the water does run.\n\nYour toothpaste contains surfactants - they lower the surface tension of water on your sink.\n\nNow think about a bead of water on the sink. It has a specific [contact angl...
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[ [ "http://en.wikipedia.org/wiki/Contact_angle" ] ]
1v7ncq
what is montessori education and is it more effective than traditional schooling?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1v7ncq/what_is_montessori_education_and_is_it_more/
{ "a_id": [ "cephuzm", "cepikyu", "ceplchq", "ceplzn7", "cepsxnx" ], "score": [ 11, 28, 6, 6, 5 ], "text": [ "The idea is that students who are behind get more individual attention, and those who are accelerating get more challenging work. Students study at their ow...
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[ [], [ "http://en.wikipedia.org/wiki/Montessori_education" ], [ "http://www.pearweb.org/teaching/pdfs/Schools/Cambridge%20Montessori%20Elementary-Middle%20School/Articles/Montessori%20article.PDF" ], [], [] ]
78uaed
how do self balancing bikes work?
Eli5: such as Google's self balancing bike. Or I've seen a concept of a motorbike that can't fall. How are they able to offset the weight when the bike is unbalanced? What is this magic?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/78uaed/eli5_how_do_self_balancing_bikes_work/
{ "a_id": [ "dowrqb1", "dowvbx3" ], "score": [ 3, 25 ], "text": [ "In short, angular momentum. \n\n(On mobile here, so sorry for any typos in advance) \n\nSo just like how an object moving in a straight line will continue to do so into an outside force stops it (like friction), objects tha...
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[ [], [ "https://youtu.be/LSZPNwZex9s" ] ]
4yzk2t
higher education in the us
I'm not an American and in my country we leave high school and go directly to study what we have chosen as our profession (Medicine, Law, Engineering etc). But when I see people talking about their years in college, they go to two schools (Obama: Columbia and Harvard) and they only choose what they're actually going to...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4yzk2t/eli5_higher_education_in_the_us/
{ "a_id": [ "d6rpo9j", "d6rrnsl" ], "score": [ 3, 2 ], "text": [ "I just wanted to add that medicine and law, in the U.S., are postgraduate education, and require one to have an undergraduate degree before starting their course of study. For most, a prospective student must also take a sta...
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1w6bcc
why is pollution in asia so bad?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1w6bcc/why_is_pollution_in_asia_so_bad/
{ "a_id": [ "cez30z4", "cez3220", "cez35rs" ], "score": [ 4, 2, 2 ], "text": [ "Pollution in China is so bad because they are going through an economic phase similar to the western Industrial revolution but on a much larger scale. People tend to like economic prosperity first and c...
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[ [], [], [] ]
bsk7gh
what is the difference between light coming from a light bulb and light coming from tv/smartphone/computer monitor screen ? how do they shine ?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bsk7gh/eli5_what_is_the_difference_between_light_coming/
{ "a_id": [ "eonu94k", "eonuc2r" ], "score": [ 3, 2 ], "text": [ "Light bulbs are not at all the same. Some produce light from heat (like incandescents), others from electrically stimulated gas (like florescents) , and others from direct electrical effects (like LEDs).\n\nTVs, smartphones...
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[ [], [] ]
21za4w
how do the fingers withstand so much weight for bodybuilders?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/21za4w/eli5_how_do_the_fingers_withstand_so_much_weight/
{ "a_id": [ "cghuj9z" ], "score": [ 2 ], "text": [ "You mean for holding the weights? The muscles that control grip strength are located in the forearm. If you looks at pictures of bodybuilders, many will have large strong forearms, resulting in the ability to hold more weight. In cases where the ...
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1bpemm
if all of the gold in the federal reserve bank of ny disappeared, what would happen to the economy?
US, and Global. Why? Edit: My girlfriend is in school for economics and was trying to explain how it would be a hard decision whether to blow up the White House or the Federal Reserve Bank in NY for an economist. Then she said something about gold standard and crap. I haz the dumbs. Please ELI5.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1bpemm/eli5_if_all_of_the_gold_in_the_federal_reserve/
{ "a_id": [ "c98rqpz", "c98rrsl", "c98w8n5" ], "score": [ 7, 2, 2 ], "text": [ "Probably not as much as you think. The dollar isn't based on gold anymore, it hasn't been in a long time.", "Not much would happen. The price of gold would probably spike, since there's some magic ...
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[ [], [], [] ]
6nee7v
why do you only wear a vest while getting x-rayed at the dentist? how does the radiation not affect your face?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6nee7v/eli5_why_do_you_only_wear_a_vest_while_getting/
{ "a_id": [ "dk8uomo" ], "score": [ 3 ], "text": [ "It does but they need it in order to take an x-ray. They give you a vest to protect you as much as they can, but you need the radiation in order to see what's going on in your skull. " ] }
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218qa6
why do the biggest subreddits have small subscriber numbers in comparison to reddit's unique visitors?
I noticed today that Reddit has over 112 million unique visitors each month (_URL_0_), yet the biggest subs (/r/funny, /r/AskReddit, etc.) all had 'just' 5-6 million subs. Why are less than 5% of Reddit's users subscribed to default subs, I get that a lot of users unsub and that a lot of users don't even register, but ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/218qa6/eli5_why_do_the_biggest_subreddits_have_small/
{ "a_id": [ "cgao3ug", "cgao69p" ], "score": [ 9, 3 ], "text": [ "Unique visitors are not the same as people with a login (and therefore even able to subscribe to a to a sub). Unique visitors can be anything from a guy who dropped in from Google to a web crawler to someone who just reads p...
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[ "http://www.reddit.com/about/" ]
[ [], [] ]
j52td
how submarine missiles launched underwater "never actually touch" water.
I've heard that the air pocket launched with the missile does something with the surface tension so it never "touches" the water?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/j52td/how_submarine_missiles_launched_underwater_never/
{ "a_id": [ "c2983v5" ], "score": [ 2 ], "text": [ "The missiles are ejected from their tubes by gas pressure created by a \"gas generator\", a solid-fuel rocket motor attached to the bottom of the missile tube which heats a pool of water creating steam. After the missile leaves the tube and rises...
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[ [ "http://en.wikipedia.org/wiki/User:James_Kemp/Trident_missile" ] ]
4hsnpy
did alligators exist the same time as dinosaurs and if so what makes them different from them?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4hsnpy/eli5_did_alligators_exist_the_same_time_as/
{ "a_id": [ "d2s11g0", "d2s1a3z" ], "score": [ 2, 5 ], "text": [ "They existed at the same time but alligators aren't dinosaurs, however alligators and dinosaurs are both archosaurs. I believe one of the defining characteristics of a dinosaur is legs underneath the body, while alligator le...
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[ [], [ "https://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Sprawling_and_erect_hip_joints_-_horizontal.svg/492px-Sprawling_and_erect_hip_joints_-_horizontal.svg.png" ] ]
2r7vsw
what is the difference between smoke, fire & carbon monoxide alarms?
Should I get all three to improve my chances of surviving an accidental fire at home ?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2r7vsw/eli5_what_is_the_difference_between_smoke_fire/
{ "a_id": [ "cndb0l9" ], "score": [ 3 ], "text": [ "It's really simple. \n\nSmoke alarms detect smoke. So it won't detect toxic levels, non smoke fire like many chemical fires etc. \n\nFire alarms detect heat levels. However some have combined smoke and fire detectors, these are typical household ...
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4yiuys
. what does the inside of an atomic bomb look like?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4yiuys/eli5_what_does_the_inside_of_an_atomic_bomb_look/
{ "a_id": [ "d6o0rxg", "d6o0zof", "d6o2j8q" ], "score": [ 5, 3, 2 ], "text": [ " > Is it just a block of Uranium that once split unleashes a large amount of energy?\n\nNo, it is more like a split block that once combined will release a bunch of energy.\n\nRadioactive elements have...
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[ [], [], [ "https://upload.wikimedia.org/wikipedia/commons/b/b7/Gun-type_fission_weapon_en-labels_thin_lines.svg", "https://upload.wikimedia.org/wikipedia/commons/e/ef/Implosion_Nuclear_weapon.svg", "https://upload.wikimedia.org/wikipedia/commons/1/1f/W-88_warhead_detail.png" ] ]
1vmdao
how and why do sports teams that haven't won their championships in many years continue to be funded?
Ie eagles, bears, etc.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1vmdao/eli5_how_and_why_do_sports_teams_that_havent_won/
{ "a_id": [ "cetog37", "cetoid0", "cetpstu", "cettcx5" ], "score": [ 3, 2, 5, 2 ], "text": [ "Tickets and hot dogs still sell, so as long as the teams remain profitable, they'll continue to find investment.", "Tickets sales, memorabilia sales, people wanting a home team...
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1tbyby
your cellphone and laptop can read signals, but how do they get sent back?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1tbyby/eli5your_cellphone_and_laptop_can_read_signals/
{ "a_id": [ "ce6emia" ], "score": [ 2 ], "text": [ "By \"read signal\" I'm assuming you mean wireless communication. It gets sent back the same way it came, by radio. Your phone and laptop have little radio transmitters in them. " ] }
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319vj3
how do people who speak mandarin spell out their written language to someone over the phone?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/319vj3/eli5_how_do_people_who_speak_mandarin_spell_out/
{ "a_id": [ "cpzvsct" ], "score": [ 2 ], "text": [ "Like i want to say my last name Yang. \n\nI would say 'my last name is yang, the one with a tree in front of it' 杨\n\nAnd its a very common last name. Most people would know how to spell it. " ] }
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4w5sjm
why it takes so long to bake a potato?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4w5sjm/eli5_why_it_takes_so_long_to_bake_a_potato/
{ "a_id": [ "d64979v", "d64b2wn" ], "score": [ 3, 2 ], "text": [ "Because potatoes are thick, starchy, dense objects that you want cooked all the way through to the center: you don't want a \"medium rare\" potato. \n\nSo, when it's in the oven, the heated air is transferring heat to the...
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[ [ "https://www.reddit.com/r/chemistry/comments/15slv5/what_happens_to_potatoes_as_they_cook/" ], [] ]
1mflpt
why do i always have music playing in my head?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1mflpt/eli5_why_do_i_always_have_music_playing_in_my_head/
{ "a_id": [ "cc8qnd0" ], "score": [ 4 ], "text": [ "Because there are little people inside who are playing away like a mexican cucaracha band" ] }
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cqt4mf
why/how do we turn and change body positions in our sleep when we are technically paralyzed?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/cqt4mf/eli5_whyhow_do_we_turn_and_change_body_positions/
{ "a_id": [ "ewz6m0h", "ewz718i" ], "score": [ 7, 3 ], "text": [ "You are only paralyzed during certain deep sleep phases. In the other phases you move around quite a bit. Have a look on YouTube for sleep cycle time lapses, you can clearly see the moving and non-moving cycles.", "That'...
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1nptj6
how did "ginger hate" get started and how did it become so popular?
Ginger people, not ginger roots!
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1nptj6/eli5_how_did_ginger_hate_get_started_and_how_did/
{ "a_id": [ "cckx71k", "ccl1zla", "ccl3ga0" ], "score": [ 33, 5, 5 ], "text": [ "The origin of hatred against red haired people goes back pretty far. \nIn Medieval times it was believed that red haired people were fathered by the devil (and not that they were witches, as is stated ...
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[ [], [], [] ]
8mer1z
earwax buildup, how is that determined by our body?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8mer1z/eli5_earwax_buildup_how_is_that_determined_by_our/
{ "a_id": [ "dzn2sq9" ], "score": [ 3 ], "text": [ "You have 3 primary mucus systems in your body. Your ears, your sinuses, and your digestive system. When they encounter an irritant of some kind (such as dust in your nose, spicy food, or something crawling into your ear) your body will release a ...
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9ezew4
traffic breaks, how and why they work.
I was driving on the freeway with a highway patroll officer in front of me doing the swerve between the lanes, and was wondering both the reason for them and how they work?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9ezew4/eli5_traffic_breaks_how_and_why_they_work/
{ "a_id": [ "e5sm4w1" ], "score": [ 2 ], "text": [ "Cop here:\n\nBasically how you saw.\n\nA police car rolls back and forth between lanes which slows the cars behind them down. This basically causes a traffic jam.\n\nThe reason for doing so is so police/emergency workers further down the road ca...
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28g4oe
why are prices not listed commonly at an even number?
Example: If something is $4.99, why not just make it an even $5?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/28g4oe/eli5_why_are_prices_not_listed_commonly_at_an/
{ "a_id": [ "cial84u" ], "score": [ 6 ], "text": [ "It's called [psychological pricing](_URL_0_).\n\nAs Wikipedia puts it:\n\n > Consumers tend to perceive “odd prices” as being significantly lower than they actually are, tending to round to the next lowest monetary unit. Thus, prices such as $1....
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[ [ "https://en.wikipedia.org/wiki/Psychological_pricing" ] ]