q_id stringlengths 5 6 | title stringlengths 3 296 | selftext stringlengths 0 9.97k | document stringclasses 1
value | subreddit stringclasses 1
value | url stringlengths 66 110 | answers dict | title_urls list | selftext_urls list | answers_urls list |
|---|---|---|---|---|---|---|---|---|---|
axrz14 | why does it take so long to download and interpret black box info after a plane crash? | I realize it can take time to find the black box. But why isn’t there a computer program that hooks up to the BB and acts like a simulator? All the data is there. Why can’t they plug it in and watch a recreation of what happened immediately? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/axrz14/eli5_why_does_it_take_so_long_to_download_and/ | {
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"text": [
"The “black box” isnt a single system, its made up of separate recording devices through the aircraft.\n\nIt doesnt record EVERYTHING, only the Time, Engine specifics and altitude, the other records coc... | [] | [] | [
[],
[],
[]
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b38ekv | if i understand this correctly, freckles and a tan are both the result of the sun triggering the release of melanin. what determines which one it will be? also, in that case why can we get freckles on skin not exposed to sunlight, but can’t get a tan on unexposed skin? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b38ekv/eli5_if_i_understand_this_correctly_freckles_and/ | {
"a_id": [
"eixvkoq",
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"score": [
6,
2
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"text": [
"Freckles are actually over active melanocytes (cells responsible for melanin production.) when you tan you are also increasing the amount of melanin you have as a whole , while freckles do not do that. The reason freckles ca... | [] | [] | [
[],
[]
] | ||
qgxnq | mao zedong's cultural revolution | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/qgxnq/elifmao_zedongs_cultural_revolution/ | {
"a_id": [
"c3xk1mo"
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"score": [
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"text": [
"It was essentially to secure more power for himself and destroy anti-Mao sentiments. It was also an attempt to unify the country after a couple of failed nation building campaigns (Great Leap Forward being one of the bigger failures). He stated t... | [] | [] | [
[]
] | ||
b859w6 | what is the difference between "frames per second" (fps) and "refresh rate" (hz)? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b859w6/eli5_what_is_the_difference_between_frames_per/ | {
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"text": [
"Refresh rate - how often the screen itself is refreshed. It is completely independent of frames per second since you still have refresh... | [] | [] | [
[],
[],
[],
[],
[
"https://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Tearing_%28simulated%29.jpg/1280px-Tearing_%28simulated%29.jpg"
],
[]
] | ||
2xm2gz | how does facebook find people that i haven't had contact with in years or minimal contact ever and suggest them as friends? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2xm2gz/eli5_how_does_facebook_find_people_that_i_havent/ | {
"a_id": [
"cp1alfc"
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"score": [
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"text": [
"Facebook gives you the option to use your email address book to look for people you know. If someone who has your email used this option, Facebook now knows there used to be a connection between you two. This other person might not have sent you... | [] | [] | [
[]
] | ||
1nt0q7 | why does our belly get "fat" but our backs don't? | I know that there is a layer of fat under my back-skin too, but somehow it seems to amass on the frontside of my body... Why? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1nt0q7/eli5_why_does_our_belly_get_fat_but_our_backs_dont/ | {
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"score": [
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"text": [
"I believe that a lot of it is not actually fat under your skin, but fat around your guts that causes them to stick out. This is actually a different kind of fat. The stuff under... | [] | [] | [
[],
[
"http://www.peopleofwalmart.com/"
],
[],
[
"http://myskinnybuns.files.wordpress.com/2011/12/back-fat.jpg"
]
] | |
4i3vsj | how are specific shapes in cereal mass produced? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4i3vsj/eli5_how_are_specific_shapes_in_cereal_mass/ | {
"a_id": [
"d2uud2x"
],
"score": [
3
],
"text": [
"Squeezed out of a shaped hole, like toothpaste is squeezed out of a round hole. Then sliced off in bits and cooked. "
]
} | [] | [] | [
[]
] | ||
7osbgx | how do countries simulate full-scale wars? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7osbgx/eli5_how_do_countries_simulate_fullscale_wars/ | {
"a_id": [
"dsbvrmy",
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"score": [
2,
3,
2
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"text": [
"They pretend to be at war for a day or two. Use fake bullets and rockets. Sometimes bigger countries also use fewer troops / guns to train for more complicated situations ",
"This is a very vague qu... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Able_Archer_83",
"https://usnwc2.usnwc.edu/Research---Gaming/War-Gaming/Documents/RAGE/Gaming/-Global-Title-X-Series.aspx"
]
] | ||
c3uq2e | bpa in food containers | When does it become dangerous? Do we inhale it or do we ingest it? what happens to food containers with bpa that get microwaved? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c3uq2e/eli5_bpa_in_food_containers/ | {
"a_id": [
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"score": [
2,
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"text": [
"There isn't good evidence that it is dangerous at levels coming from plastics containing food/drink. It affects the endocrine system, but it's fairly weak in that action. The EPA and the European Food S... | [] | [] | [
[],
[],
[]
] | |
4y5tlw | how far does the light from a laser pointer travel? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4y5tlw/eli5_how_far_does_the_light_from_a_laser_pointer/ | {
"a_id": [
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"d6lq4kk",
"d6lroj8",
"d6lse4w",
"d6lsmyr",
"d6lstlq",
"d... | [] | [] | [
[],
[],
[
"https://what-if.xkcd.com/13/"
],
[],
[],
[
"https://en.wikipedia.org/wiki/Collimated_light",
"http://www.pseudonomen.com/lasers/calculators/"
],
[],
[],
[],
[
"http://www.thegreenwichmeridian.org/tgm/articles.php?article=14"
],
[],
[
"https://what-if.xkcd.c... | ||
2eshwk | why can't i buy gas and sell it later? | This was in an episode of its always sunny, and they do it horribly wrong. But lets say you can buy it straight from a distributor, hold on to it for a year or two, and then sell it to a gas station. What's stopping you from making a profit? (Gas prices increase faster than inflation.) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2eshwk/eli5_why_cant_i_buy_gas_and_sell_it_later/ | {
"a_id": [
"ck2i7fv",
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"score": [
5,
2,
2
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"text": [
"Gasoline doesn't last that long, for one. \n\nYou can buy gasoline *futures* (paying now for gas later) but it's a poor way to invest money. There are better ways to invest. ",
"Considering the amou... | [] | [] | [
[],
[],
[]
] | |
2gg0p1 | why is the scottish independence referendum positioned as neck and neck in the polls, whereas the bookmakers odds suggest the opposite? | Bookmakers (here in England at least) currently have 3/1 for YES, and 1/4 for NO. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2gg0p1/eli5_why_is_the_scottish_independence_referendum/ | {
"a_id": [
"ckir983",
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"score": [
2,
3
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"text": [
"Sorry to ELI5 your ELI5, but just for those who have never stepped into a bookies... \n\nIf I bet £10 each on yes and no, do I understand right that a \"no\" result would get me £2.50, and a \"yes\" would get me £30?\n\nIf s... | [] | [] | [
[],
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] |
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