q_id
stringlengths
5
6
title
stringlengths
3
296
selftext
stringlengths
0
34k
document
stringclasses
1 value
subreddit
stringclasses
1 value
url
stringlengths
4
110
answers
dict
title_urls
list
selftext_urls
list
answers_urls
list
2qd8t9
how do small amounts of diareahh cause large amounts of stomach pain?
It's been a rough Christmas morning.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2qd8t9/eli5_how_do_small_amounts_of_diareahh_cause_large/
{ "a_id": [ "cn51pz0" ], "score": [ 8 ], "text": [ "You too, huh? \n\nDiarrhea doesn't \"cause\" stomach pain. If you ate something that's irritating your lower digestive tract, or if you have a virus affecting it, the reflex is for it to expel everything you ate. Your body sort of dumps water int...
[]
[]
[ [] ]
87bbgs
why do some shirts only make me sweat, but some shirts make me sweat and stink?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/87bbgs/eli5_why_do_some_shirts_only_make_me_sweat_but/
{ "a_id": [ "dwbk2bo" ], "score": [ 3 ], "text": [ "Certain bacteria grows better on some materials (e.g. polyester) than others (e.g. cotton). The bacteria is what makes your shirts stink, not the sweat itself. Synthetic fibers tend to end up stinking more because they don't soak up moisture the ...
[]
[]
[ [ "http://www.sciencemag.org/news/2014/09/why-your-gym-clothes-stink?rss=1" ] ]
3oohpp
the differences between vaping and hookah
I understand the mechanism, mostly just curious about the nicotine and other chemical intakes. Also I cannot innately trust you because you vape, I'm sorry.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3oohpp/eli5_the_differences_between_vaping_and_hookah/
{ "a_id": [ "cvz74zf" ], "score": [ 4 ], "text": [ "Vaping is vaporizing a liquid. In the case of e-cigs, it is a type of glycerin mixed with a liquid derived from tobacco. You are not technically burning all of the leaf as with other forms of smoking so it is marginally better as you're not cre...
[]
[]
[ [] ]
3vti6o
if amazon is estimated to be worth $175bl, why don't they choose to undercut netflix on service and movie selection? what is stopping amazon from outdoing netflix for streaming?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3vti6o/eli5_if_amazon_is_estimated_to_be_worth_175bl_why/
{ "a_id": [ "cxqibbv", "cxqifrh", "cxqkctp", "cxqkdin", "cxqmepd", "cxqmikl", "cxqnj7t", "cxqnqc1", "cxqsllm", "cxquksn", "cxqvhoa", "cxqvpzn", "cxr6mkr" ], "score": [ 29, 8, 3, 9, 5, 6, 5, 2, 2, 2, 2, 2, 2 ]...
[]
[]
[ [], [], [ "et.al" ], [], [], [], [], [ "http://arstechnica.com/information-technology/2015/08/netflix-shuts-down-its-last-data-center-but-still-runs-a-big-it-operation/" ], [], [], [], [], [] ]
2x40jj
why is the population of the world shifting towards more male vs female births?
50+ years ago, the ratio was ~ 0.9-0.97 male/female, but more recently, births are 1.01+ male /female and seems to be increasing
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2x40jj/eli5_why_is_the_population_of_the_world_shifting/
{ "a_id": [ "cowo0ha", "cowoekv", "cowoo08", "cowozfx", "cowxxdn" ], "score": [ 21, 2, 5, 5, 6 ], "text": [ "While there is some natural variance, there is also the fact that improved medical capabilities, gives us more ways of determining the sex of a foetus before...
[]
[]
[ [], [], [], [ "https://www.youtube.com/watch?v=3IaYhG11ckA" ], [ "http://en.wikipedia.org/wiki/Human_sex_ratio", "http://www.pnas.org/content/105/13/5016.full" ] ]
2r1mj9
how does a lake, that dries out completely during drought, regain fish population after rain-season?
Many lakes in the african desert do have a fishpopulation although the lake drys out completely for a couple of months. how?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2r1mj9/eli5_how_does_a_lake_that_dries_out_completely/
{ "a_id": [ "cnbke4k" ], "score": [ 3 ], "text": [ "Some types of fish can bury into mud and survive - or their spawn can. Other times, eggs are transported on the feet of birds from lake to lake." ] }
[]
[]
[ [] ]
2cwx63
what would take for congress and/or house to have limited terms? or make it like the presidency, two terms and you are out.
I just want to know if we could ever see a change in the way that congress and/or house of representatives are set up. Would it be a constitution change? would congress have to vote on that?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2cwx63/eli5what_would_take_for_congress_andor_house_to/
{ "a_id": [ "cjjtprr", "cjju5p6", "cjju73z", "cjjvcgy" ], "score": [ 4, 2, 2, 5 ], "text": [ "Making an amendment to the constitution like they did with the presidency. There's been some proposals to do it, [here's one article about that.](_URL_0_)", "There are two ways...
[]
[]
[ [ "http://thehill.com/blogs/blog-briefing-room/news/197521-house-gop-lawmakers-file-bill-to-impose-12-year-term-limits-on" ], [ "http://en.m.wikipedia.org/wiki/Convention_to_propose_amendments_to_the_United_States_Constitution" ], [], [] ]
1fr1lh
tax day
If the IRS takes a percent of all of my paychecks, why might I owe them extra on tax day?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1fr1lh/eli5_tax_day/
{ "a_id": [ "cacxpu5", "cacxqhk" ], "score": [ 3, 2 ], "text": [ "You have control over what percentage the IRS takes out of each paycheck. If you end up under-estimating how much should be taken, you have to make up the difference on tax day. By the same token, if you've over-estimated,...
[]
[]
[ [], [] ]
b5wsml
do water bottle minerals add taste?
Most water bottles state the fact “added minerals for taste.” What does that mean in terms of, there’s no taste, it’s water.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/b5wsml/eli5_do_water_bottle_minerals_add_taste/
{ "a_id": [ "ejgfl5q", "ejgir15" ], "score": [ 6, 2 ], "text": [ "Yes, it has a \"good\" taste. If you drink a glass of distilled water you'd say it \"tastes flat\" or maybe \"stale\". There is a level of minerals that people associate with \"fresh\", and that's what they're adding to th...
[]
[]
[ [], [] ]
3xifqp
why does copper oxidize almost immediately after getting it out of a substance like vinegar or bleach?
I've been trying to make brass for a science fair project, but I noticed something peculiar, upon taking copper out of either Bleach, Vinegar or Iodine tincture, the copper seems to oxidize almost immediately. Is there any reason to this, or is it because I've stripped away a thin layer of copper oxide? I might also tr...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3xifqp/eli5why_does_copper_oxidize_almost_immediately/
{ "a_id": [ "cy4w6e4" ], "score": [ 2 ], "text": [ "The atmosphere is full of oxygen just desperate to react to something.\n\nWhich is really good if you'e a fan of aluminium." ] }
[]
[]
[ [] ]
61or2l
how do casinos prevent money laundering?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/61or2l/eli5_how_do_casinos_prevent_money_laundering/
{ "a_id": [ "dfg3wtq", "dfg51tp", "dfg5ovu", "dfg5zzw", "dfg64eo", "dfg68rx", "dfg6x1s", "dfg77wu", "dfg7hzn", "dfg7kww", "dfg85vc", "dfg8cdc", "dfg8ib9", "dfg8o7l", "dfg96da", "dfga271" ], "score": [ 31, 4, 7, 52, 8, 9, 3...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [] ]
afmae9
why large businesses prefer to replace wages with benefits packages.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/afmae9/eli5_why_large_businesses_prefer_to_replace_wages/
{ "a_id": [ "edzqrz8", "edzqu8k", "edzsig8" ], "score": [ 7, 2, 3 ], "text": [ "It's usually cheaper and people respond well to perks and benefits. The thing about raising wages and salaries is that it keeps growing larger. People expect raises and increases to account for inflat...
[]
[]
[ [], [], [] ]
ovfeq
tinker, tailor, soldier, spy
I watched the movie the other night, but I was distracted and tired, and not sure I understood the plot completely. I definitely will go back and watch it at some point, but was hoping for an quick explanation first. Thanks in advance!
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/ovfeq/eli5_tinker_tailor_soldier_spy/
{ "a_id": [ "c3kco77", "c3kinfr" ], "score": [ 4, 5 ], "text": [ "I think I've seen one movie (The Spy Who Came In From The Cold) by the writer of T, T, S, S, but I've read most of John LeCarre's books. They're high-level thinking stories, nothing like James Bond. You may have to read th...
[]
[]
[ [], [] ]
64h0wo
why do some actors and musicians become known by their middle names as well as their first and last names?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/64h0wo/eli5_why_do_some_actors_and_musicians_become/
{ "a_id": [ "dg234qw", "dg23d0w", "dg23fif", "dg2452o", "dg25qhi" ], "score": [ 30, 57, 27, 3, 105 ], "text": [ "Alot of the time the Unions (SAG etc) may require that you have a different name than someone already in the system.\n\nFor example Michael J Fox's middl...
[]
[]
[ [], [ "https://en.wikipedia.org/wiki/Joseph_Gordon-Levitt" ], [], [], [] ]
69b4xv
why do we feel for someone's pulse instead of just putting our hand on their chest to feel their heartbeat?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/69b4xv/eli5_why_do_we_feel_for_someones_pulse_instead_of/
{ "a_id": [ "dh577dd" ], "score": [ 2 ], "text": [ "Because if you know where to place your fingers it's much easier to feel a pulse on someones wrist or neck than on the chest. A neck and wrist are pretty much always easily accesible, whereas someones chest could be covered in layers of clothes m...
[]
[]
[ [] ]
2b1chc
video - format, container and codec?
What does it mean, and what difference does it make? Like mp4, mov, h.264 and ACVHD? Why isn't there a universal standard?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2b1chc/eli5_video_format_container_and_codec/
{ "a_id": [ "cj0tsdh", "cj0uicw" ], "score": [ 2, 2 ], "text": [ "I can just give you a basic answer. Each format has an author. Each author, a different priority, each priority, a different t method of compression. For example, the creator of .3gp wanted to make a small file for early ada...
[]
[]
[ [], [] ]
1jmphr
how would human bodies have evolved differently if the earth had half as much gravity as it does now?
Not necessarily microgravity as seen on the moon. Just significantly lower gravity than we do now.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1jmphr/how_would_human_bodies_have_evolved_differently/
{ "a_id": [ "cbg6z4w", "cbg7bg8", "cbg7u0q" ], "score": [ 3, 2, 3 ], "text": [ "Good question, but you might do better in /r/askscience", "Thinner, more brittle bones, taller, faster blood-clotting rate (as a result of calcium being redirected from bones to just remaining in th...
[]
[]
[ [], [], [] ]
maf0e
the effects of different amounts of alcohol on the human body
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/maf0e/the_effects_of_different_amounts_of_alcohol_on/
{ "a_id": [ "c2zcwn0", "c2zd170", "c2zcwn0", "c2zd170" ], "score": [ 2, 3, 2, 3 ], "text": [ "Care to be more specific?\nYou can go from completely unaffected to totally intoxicated or drunk to the point where you have alcohol poisoning. It depends on your metabolism, physi...
[]
[]
[ [], [], [], [] ]
vonug
why is the divorce rate so high in the us?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/vonug/eli5_why_is_the_divorce_rate_so_high_in_the_us/
{ "a_id": [ "c56aitq", "c56ajhl", "c56boja", "c56dvq0" ], "score": [ 9, 25, 16, 3 ], "text": [ "Because divorce is readily available to people, as are quick marriages. Divorce was much more of a problem in the 50s because women would be stigmatised and would often have diff...
[]
[]
[ [], [], [], [] ]
51kups
why are marvel movies so popular despite being so formulaic?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/51kups/eli5_why_are_marvel_movies_so_popular_despite/
{ "a_id": [ "d7cojb9" ], "score": [ 2 ], "text": [ "Formulaic action packed tent pole films have always been popular. \n\nMarvel is just turning the formula into a long running series. \n\nNeed geek culture is on a big upswing in all media. \n\nRobert Downy Junior is amazing. Most of the casting h...
[]
[]
[ [] ]
4gb7m8
the link between allergy medicine and dementia.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4gb7m8/eli5_the_link_between_allergy_medicine_and/
{ "a_id": [ "d2g2e4r", "d2g2qc0" ], "score": [ 4, 3 ], "text": [ "It probably is a true link, however this study looked at older populations, who are at higher risk of Alzheimer's than younger patients. Alzheimer's disease is associated with degeneration of the basal nucleus of meynert in ...
[]
[]
[ [], [] ]
201nov
why counterfeit products featured slightly altered logos as compared to those of the products they're posing as.
It would make more sense to use the actual logos of the brands they're passing their product off as being, given that said counterfeits are already illegal. Is it a matter of a 'personal stamp' that they honestly think will fool people, or are they endeavoring to skate by certain laws that make it easier to pass their ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/201nov/eli5_why_counterfeit_products_featured_slightly/
{ "a_id": [ "cfyy9d3", "cfyyenw", "cfyyzjm", "cfz3fkt" ], "score": [ 2, 6, 2, 2 ], "text": [ "Sometimes it's a ripoff in the same way a lot of small game apps rip off the most popular ones, so they make it slightly different to try and skate by legally. Other times it's jus...
[]
[]
[ [], [], [], [] ]
260hw2
why is it in the us that cooks get paid shit while the servers walk out with double the pay in cash.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/260hw2/eli5_why_is_it_in_the_us_that_cooks_get_paid_shit/
{ "a_id": [ "chmh1q9", "chmh32k", "chmh58u", "chmh6um", "chmhed2" ], "score": [ 2, 4, 2, 2, 3 ], "text": [ "Cooks should get tipped out, the two restaurants I worked in had that policy.", "Don't post loaded questions.", "Your fault, the good chef knows to ta...
[]
[]
[ [], [], [], [], [] ]
1x8ui4
on products that say, "if you're not completely satisfied, your money will be refunded," why don't people just use the product and say they're not satisfied so they can use it for free?
Even if they are satisfied, why don't people say they aren't for a refund?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1x8ui4/on_products_that_say_if_youre_not_completely/
{ "a_id": [ "cf9538x", "cf9583m", "cf9595z" ], "score": [ 6, 2, 2 ], "text": [ "some people do that but most people aren't that cheap and asshole-ish enough to do that .", "And for most products (not all) you have to return the unused portion... at your expense.", "Because ...
[]
[]
[ [], [], [] ]
4l38bj
why is it illegal in most states to carry brass knuckles but knives are fine?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4l38bj/eli5_why_is_it_illegal_in_most_states_to_carry/
{ "a_id": [ "d3jxyhp", "d3jxyi4", "d3jxzr4", "d3jylbc" ], "score": [ 2, 26, 5, 2 ], "text": [ "I'm no expert on the subject but knives are useful tools which don't ever need to be used for violence. Brass knuckles on the other hand seem to only be used for violence. ", ...
[]
[]
[ [], [], [], [] ]
7ndy5s
how do they get fruits and nuts to stay suspended in ice cream?
Why wouldn't they sink to the bottom before the ice cream is frozen? Flair: Other
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7ndy5s/eli5_how_do_they_get_fruits_and_nuts_to_stay/
{ "a_id": [ "ds13axh", "ds14qrp" ], "score": [ 9, 4 ], "text": [ "The ice cream is constantly mixed while it is being frozen. This is also what gives ice cream its special texture, otherwise it would have become a solid block (this is what happens if you let ice cream melt and then refreez...
[]
[]
[ [], [] ]
195ol6
what are the differences in different types of ram?
I've heard of a bunch of different types of RAM, and I don't know why it isn't standard, or what metrics make good RAM
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/195ol6/eli5_what_are_the_differences_in_different_types/
{ "a_id": [ "c8l0rj2" ], "score": [ 2 ], "text": [ "RAM has two qualities you should look for, clock speed and size. The size is given as some GB. You should go for 4 or 8 now, mainly because it cheap. More is never worse, but to much won't help you. The other is clock speed, it's given in Hz and ...
[]
[]
[ [] ]
6plrik
how do fish recognize people that return to visit?
I just saw a post about a shark cuddling with a specific diver every time the diver comes back to that area. How does this happen? Is it through smell or can fish remember what people look like?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6plrik/eli5_how_do_fish_recognize_people_that_return_to/
{ "a_id": [ "dkr3xz3" ], "score": [ 6 ], "text": [ "Why *wouldn't* fish remember? They aren't brain-dead, [they are intelligent creatures.] (_URL_0_) Any aquarist can tell you that fish recognize their owners." ] }
[]
[]
[ [ "http://www.popsci.com/article/science/are-fish-intelligent-crows-chimps-or-people" ] ]
9fqztj
why so many firefighters and paramedics who handled the 9/11 crisis got cancer?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9fqztj/eli5_why_so_many_firefighters_and_paramedics_who/
{ "a_id": [ "e5yitor", "e5yjuxv", "e5yo1gc", "e5yoxpq", "e5yr3xq", "e5ys1ig", "e5yt4nb", "e5yx9e6" ], "score": [ 207, 6, 56, 25, 9, 8, 7, 2 ], "text": [ "They spent a long time, some many months, at ground zero. They were covered with, and br...
[]
[]
[ [], [], [ "https://en.wikipedia.org/wiki/Health_effects_arising_from_the_September_11_attacks#Toxic_dust" ], [], [], [], [], [] ]
2sdm86
why i can hit a flying insect (fly/moth etc) with the full force of my palm and it will fly away unharmed, but an giant flat object running into a human at speed will likely kill them immediately?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2sdm86/eli5_why_i_can_hit_a_flying_insect_flymoth_etc/
{ "a_id": [ "cnohgz8", "cnohhsq" ], "score": [ 5, 12 ], "text": [ "The square/cube law at work, giving scale to the universe. If you're 100 times taller than the bug then you weigh 1,000,000 times more (the cube) but your cross-sectional area is only 10,000 time more (the square). Streng...
[]
[]
[ [], [] ]
5lj9ns
why is the hd quality that comes out of my $25 indoor antenna better than what i used to get through a cable box?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5lj9ns/eli5_why_is_the_hd_quality_that_comes_out_of_my/
{ "a_id": [ "dbw4z5c" ], "score": [ 8 ], "text": [ "Your cable company is compressing the signal. Over-the-air transmissions are 100% pure, uncompressed video signals. " ] }
[]
[]
[ [] ]
416fnq
are the suits in interstellar and the martian viable?
I know suits used in open space need more because there is no atmosphere, but are the thinner suits used in movies actually usable? Have they been used before for anything?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/416fnq/eli5_are_the_suits_in_interstellar_and_the/
{ "a_id": [ "cyzzm7b", "cz01qc8", "cz0kesc" ], "score": [ 5, 3, 2 ], "text": [ "NASA [is designing](_URL_0_) a next-generation space suit, but it's still not as cool as the ones used in those movies.", "The problem with thin, though it's flattering to the actors, is that it's d...
[]
[]
[ [ "https://www.nasa.gov/content/nasa-s-next-prototype-spacesuit-has-a-brand-new-look-and-it-s-all-thanks-to-you" ], [], [] ]
1surop
why is it snowing in cairo?
Since it hasn't happened for so long why now?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1surop/eli5_why_is_it_snowing_in_cairo/
{ "a_id": [ "ce1fyvu" ], "score": [ 9 ], "text": [ "Water precipitates into the air and fathers on particles higher up in our atmosphere forming clouds. At some point they become so heavy they start to rain, if it's cold enough, bam! Snow! " ] }
[]
[]
[ [] ]
279lij
why aren't all people whose jobs require extreme amounts of focus (presidents, surgeons, etc.) on adderall?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/279lij/eli5_why_arent_all_people_whose_jobs_require/
{ "a_id": [ "chyoeq6", "chyohnn", "chyoln0", "chyoml1", "chyqepp" ], "score": [ 3, 2, 5, 4, 2 ], "text": [ "Why aren't all athletes on steroids?", "Because stimulant medication has side effects and these people don't need additional focus in order to do their jo...
[]
[]
[ [], [], [], [], [] ]
1wu4z9
why don't alcohol companies lobby for a lower drinking age?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1wu4z9/eli5_why_dont_alcohol_companies_lobby_for_a_lower/
{ "a_id": [ "cf5dmip", "cf5e3er" ], "score": [ 21, 7 ], "text": [ "The only reason all states are 21+ is bc any state that chooses to set it lower is forfeiting federal highway funding from govt. This may have changed since the last time I looked into it but im pretty sure its still correc...
[]
[]
[ [], [] ]
3epwb3
why are parts of the world (like the northern parts of africa and the arabian peninsula) all desert when they are completely surrounded by water?
I understand that the ocean is salt water, but wouldn't the cool, moist winds coming from off the ocean hit the hot air above these desert areas and form rain? Why then are heavily deserted areas like the northern part of Africa and the Arabian peninsula not teeming with lush green land similar to other areas surrounde...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3epwb3/eli5_why_are_parts_of_the_world_like_the_northern/
{ "a_id": [ "cthac3i" ], "score": [ 5 ], "text": [ "There are plenty of ways a desert can form, but those in particular are formed simply because of their distance from the equator. Due to the rotation of the Earth, global winds circulate in a way that brings warm and moist air to equator. The air...
[]
[]
[ [] ]
679j7i
how can we see a full moon during the daytime if we can also see the sun? (given that the full moon is due to the reflection of the sun on the moons surface)
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/679j7i/eli5_how_can_we_see_a_full_moon_during_the/
{ "a_id": [ "dgoo4ne", "dgopa6m", "dgopbrz", "dgopq7w" ], "score": [ 6, 4, 2, 19 ], "text": [ "Imagine you're standing your garden, and a few dozen meters before you there's somebody aiming a large and powerful LED right at you. However, in between you two, there's a curved...
[]
[]
[ [], [], [], [] ]
8gj0ua
why is the human brain always so negative?
Whether it's trying to accomplish a feat you've never done before, or run a long distance, or go for that new job - why are our brains our worst enemy?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8gj0ua/eli5_why_is_the_human_brain_always_so_negative/
{ "a_id": [ "dyc0wok", "dyc19r4" ], "score": [ 6, 6 ], "text": [ "The human brain is partly designed to assess risk and keep us out of danger. All the things you listed have potential danger associated with them, be it physical danger, or danger to our pride, self-esteem, etc", "This m...
[]
[]
[ [], [] ]
7fhnlt
how does our brain create a mind?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7fhnlt/eli5_how_does_our_brain_create_a_mind/
{ "a_id": [ "dqbvtpx", "dqbwayk", "dqbyuha", "dqbz2d3", "dqc0fsw", "dqc1n4u" ], "score": [ 156, 6, 113, 4, 3, 9 ], "text": [ "This is a question no one knows the answer to, there are plenty of theories about what it could be though.", "Your brain is like...
[]
[]
[ [], [], [], [ "https://www.ted.com/talks/donald_hoffman_do_we_see_reality_as_it_is/transcript" ], [], [] ]
16s9er
how do new words get invented in language where words are unique symbols? (japanese, chinese, others?)
I imagine it would be difficult to start a new word when the symbol for it would not be instantly recognizable or understood. How does this work?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/16s9er/how_do_new_words_get_invented_in_language_where/
{ "a_id": [ "c7yw189", "c7yy99q" ], "score": [ 2, 5 ], "text": [ "I am not familiar with Chinese, but I did study Japanese.\n\nIn the Japanese language, there are 3 different scripts: Kanji 漢字, hiragana かんじ and katakana カンジ (all three of those are the word \"kanji\" in the respective scrip...
[]
[]
[ [], [] ]
aoegmf
freezing and flooding rivers
Ok so I know when water freezes it expands. So how come when a river unfreezes it always floods. Is it from water upriver thawing faster and catching up with the frozen water thawing that out?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/aoegmf/eli5_freezing_and_flooding_rivers/
{ "a_id": [ "eg0a2xr" ], "score": [ 5 ], "text": [ "When a river freezes the surrounding land is also cold so you get ice and snow on land so the rain that would flow to the river at a steady rate if it warmer stay frozen on land instead.\n\nWhen rivers start to melt the frozen water that was on l...
[]
[]
[ [] ]
4c15db
why does tensing my muscles help me deal with temperature at either extreme
If I jump into a plunge pool or go under a waterfall I tense to deal with the cold. If the shower suddenly gets too hot I tense to deal with that and it helps. Why is that?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4c15db/eli5why_does_tensing_my_muscles_help_me_deal_with/
{ "a_id": [ "d1ea8qu" ], "score": [ 2 ], "text": [ "For cold: You know how when you're running or playing basketball, and you get really hot and sweaty? That's because your muscles are burning energy that gets released in the form of heat. Tensing up uses muscles, so it's releasing energy which wa...
[]
[]
[ [] ]
2irm10
what is the fastest a human can move any individual body part?
What's the fastest that someone's hand or foot has been clocked at? Or is there any other body part which can move faster?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2irm10/eli5what_is_the_fastest_a_human_can_move_any/
{ "a_id": [ "cl4sfuv", "cl4ti8r", "cl4tui6", "cl4u34n" ], "score": [ 4, 4, 2, 2 ], "text": [ "I believe it is the wrist, with a maximum acceleration of about 40 m/s IIRC correctly. I heard it in my trig class a few weeks ago, searching for a source now.", "I'm going to ...
[]
[]
[ [], [], [], [] ]
204fmc
why some acids can dissolve metal or glass but not the plastic container theirkept in
Without the chemistry background, this just seems counterintuitive.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/204fmc/eli5_why_some_acids_can_dissolve_metal_or_glass/
{ "a_id": [ "cfzpda2", "cfzqfrw" ], "score": [ 2, 2 ], "text": [ "Different chemicals react with different things. \nAn example: my dad works with hydrofluoric acid which eats away at glass very well (the windows in his old workshop went from clear to cloudy over the years), BT doesn't do ...
[]
[]
[ [], [] ]
9xc0lr
why do all phones in india seem to have dual sim slots?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9xc0lr/eli5_why_do_all_phones_in_india_seem_to_have_dual/
{ "a_id": [ "e9r2kwm", "e9rae7l" ], "score": [ 3, 3 ], "text": [ "India is not the only place to have phones with dual SIM slots. Many phone manufacturers in Asia tend to opt for dual SIM slots, because these slots are able to support microsd memory cards today. Plus in some regions it's e...
[]
[]
[ [], [] ]
6dtjhv
why does facebook messenger and other similar apps on the app store have random 150mb updates a few times a week?
I don't see any difference in the app at all once i update it, why is it around 150mb every time?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6dtjhv/eli5_why_does_facebook_messenger_and_other/
{ "a_id": [ "di58if0", "di59fpi", "di5gs6q", "di5hw3i" ], "score": [ 15, 26, 5, 9 ], "text": [ "Software developer here, but not an Android developer. The way Java programs are normally distributed are through files called Jars. The one file contains all of the code necessa...
[]
[]
[ [], [], [], [] ]
ec6sjx
why do humans look each other in the eyes?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ec6sjx/eli5_why_do_humans_look_each_other_in_the_eyes/
{ "a_id": [ "fb9jorg", "fb9m00l", "fb9qi8q" ], "score": [ 7, 4, 3 ], "text": [ "Trivially, it's because eyes help communicate things. They communicate attraction, attention, intimidation, and so on. In direct communication, they often trivially communicate dominance/submission, whe...
[]
[]
[ [], [], [] ]
3x492v
i am an immigrant who has been in us for two years. can anyone explain me why should we have medical insurance to visit a doctor or else you have pay in loads. why is medicare the biggest scam in the us?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3x492v/eli5_i_am_an_immigrant_who_has_been_in_us_for_two/
{ "a_id": [ "cy1cy3h" ], "score": [ 2 ], "text": [ "Medical care is a big scam. Medicare is a government health insurance program that is amazing. You should probably reword you post.\n\nThat being said, yes, it is a big scam. Hospitals are free to charge ANYTHING they want for services. With heal...
[]
[]
[ [] ]
r0z3n
i went on a 5 day drinking binge, and was never more exhausted in my whole life yesterday, yet my body refused to let me go to sleep
I know the title is kind of specific but i'll try and be short. But basically I came back from my spring break yesterday and spent the whole day traveling, but on the flight and then when i finally got home to my bed, my body refused let me fall asleep, it was one of the worst experiences of my life. And I just want to...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/r0z3n/eli5_i_went_on_a_5_day_drinking_binge_and_was/
{ "a_id": [ "c421p4e", "c422smj", "c425f5h" ], "score": [ 10, 32, 2 ], "text": [ "To put it simply, abruptly stopping extended heavy alcohol consumption (alcoholism) can result in alcohol withdrawal syndrome along with insomnia.\n\nAlcohol really messes up your brain's chemistry. W...
[]
[]
[ [ "http://alcoholism.about.com/cs/alerts/l/blnaa41.htm" ], [], [] ]
3wgtis
why is there expensive and exclusive wine and liquor but not things like orange juice or soda?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3wgtis/eli5why_is_there_expensive_and_exclusive_wine_and/
{ "a_id": [ "cxw3z1m", "cxw5c94", "cxwac83" ], "score": [ 2, 2, 2 ], "text": [ "I'd say because expensive and exclusive wine and liquor needs to be aged and is made in limited supply. There are only so many bottles of a certain year scotch for example. And the more it gets consumed...
[]
[]
[ [], [], [] ]
d6rysf
how does the body deal with parasites?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/d6rysf/eli5_how_does_the_body_deal_with_parasites/
{ "a_id": [ "f0vbu1x" ], "score": [ 3 ], "text": [ "Your immune system is tipped off to parasites by specific antigens, or \"flags\" present on the \"skin\" of the parasite, byproducts of parasite metabolism, or cells signalling for help.\n\nYour body will then produce antibodies which help \"tag\...
[]
[]
[ [] ]
2h6tvg
what would happen if i had two exactly identical phones, carrying identical sim cards...
... and someone tried to call the number? A brief search suggests that it is generally considered illegal to 'clone' SIM cards. But if I did clone a phone (with the card) so that there is no way to distinguish the two devices whatsoever, how would the carrier handle the situation? Does the first phone (the one close...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2h6tvg/eli5_what_would_happen_if_i_had_two_exactly/
{ "a_id": [ "ckpxpl5", "ckpyptm" ], "score": [ 2, 5 ], "text": [ "It goes to the first phone it finds in that case ", "phones continually ping the cell tower telling the tower \"i am phone 123456, do you have any data for me\" \"no\" \n\nif you had two phones both saying \"i am 123456...
[]
[]
[ [], [] ]
aibnee
whatever happened to the fcc law banning volume increases during television ads?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/aibnee/eli5_whatever_happened_to_the_fcc_law_banning/
{ "a_id": [ "eemi3uf" ], "score": [ 3 ], "text": [ "It’s in effect. It’s called the CALM act. Cable/sat companies and networks all do comply as well. But advertisers continue to find ways to manipulate the system and other shitty things. \n\nIt’s even written specifically into every single carriag...
[]
[]
[ [] ]
fmnqug
how do manufacturers change what they are producing so fast?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fmnqug/eli5_how_do_manufacturers_change_what_they_are/
{ "a_id": [ "fl53zg7", "fl5bd8p" ], "score": [ 2, 2 ], "text": [ "This is a broad question with many scenarios. One strategy is to acquire a company specializing in the industry/product they want to step into...", "If companies manufactures similar products, it’s easy to switch parts o...
[]
[]
[ [], [] ]
4b8t0g
why do we stop feeling "butterflies" as a romantic relationship progresses?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4b8t0g/eli5_why_do_we_stop_feeling_butterflies_as_a/
{ "a_id": [ "d1708y5", "d176dhh", "d178qzf", "d17ez6u", "d17fb6c", "d17hd0v", "d17jfv4" ], "score": [ 1096, 29, 101, 7, 9, 5, 3 ], "text": [ "[Habituation](_URL_0_) is a type of learned behaviour where an organism (in this case humans) stops respondi...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Habituation" ], [], [], [ "https://en.wikipedia.org/wiki/Oxytocin", "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3936960/" ], [], [], [] ]
2vpc2a
how are transistors are made
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2vpc2a/eli5_how_are_transistors_are_made/
{ "a_id": [ "cojqp3d" ], "score": [ 2 ], "text": [ "An integrated circuit may contain a billion or more transistors, and a few billion connections. \n \nThere are various kinds of process steps used to form them, most of which are done at high temperatures (but not all). Some of the layers are \...
[]
[]
[ [] ]
5r3yfh
by mining asteroids could we ever acquire enough extra mass to alter the orbit of the earth?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5r3yfh/eli5by_mining_asteroids_could_we_ever_acquire/
{ "a_id": [ "dd484qa", "dd4bkol" ], "score": [ 4, 2 ], "text": [ "Technically yes, but it would have to be an incredibly massive amount. Odds are by the time it becomes a real problem, we'd have an equivalent amount of mass working outside the earth as spaceships and orbital factories. "...
[]
[]
[ [], [] ]
3fklzu
why so much more porn is posted on sundays.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3fklzu/eli5_why_so_much_more_porn_is_posted_on_sundays/
{ "a_id": [ "ctpi6wl" ], "score": [ 6 ], "text": [ "Just a guess, but I assume more \"adventurous\" sex (including filming it) happens on Friday or Saturday. It is then uploaded on Sunday, before the work week starts.\n\nAnother possibility is that the people doing the uploading are combing the we...
[]
[]
[ [] ]
439pkd
how do mantis shrimp and humans eyes and image processing differ?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/439pkd/eli5_how_do_mantis_shrimp_and_humans_eyes_and/
{ "a_id": [ "czgl5l7" ], "score": [ 6 ], "text": [ "Mantis shrimp eyes have 12 different color receptors, but no ability to combine the results from different color receptors. This means they can see a large variety of colors, but only those colors.\n\nHuman eyes see 3 (2 for colorblind people; 4 ...
[]
[]
[ [] ]
385xhh
how did wings on pterosaurs evolve?
I have heard that bird wings evolved first as arms with feathers allowed the animal to first glide and then fly as the arms gradually turned into wings. But how did pterosaur wings develop for arms? They didn't have feathers that could gradually allow for flight and I'm sure a fully functional wing just didn't pop out ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/385xhh/eli5_how_did_wings_on_pterosaurs_evolve/
{ "a_id": [ "crsjvbf" ], "score": [ 2 ], "text": [ "Probably the same way as flying squirrels, with flaps of skin that allowed short gliding. Over time, these structures became more refined and eventually became wings. Oh, and feathers were likely initially developed as mating features or thermore...
[]
[]
[ [] ]
78g4s5
what happens when you give birth in a foreign country?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/78g4s5/eli5_what_happens_when_you_give_birth_in_a/
{ "a_id": [ "doti9bd", "doti9oa" ], "score": [ 2, 3 ], "text": [ "Anyone born in the United States is an American citizen. Anyone born anywhere to American parents is an American citizen.\n\nRules vary by country.", "This depends on the laws of the countries involved. There is no one, ...
[]
[]
[ [], [] ]
ng4t1
why public schools spend taxpayer money on sports teams instead of using that money to help fund classes.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/ng4t1/eli5_why_public_schools_spend_taxpayer_money_on/
{ "a_id": [ "c38tm7m", "c38tufj", "c38tm7m", "c38tufj" ], "score": [ 18, 6, 18, 6 ], "text": [ "Sports programs tend to bring in a LOT of revenue for schools, for one thing. Football wasn't even considered a big deal at my high school, but the school would still take in bet...
[]
[]
[ [], [], [], [] ]
ci63if
traditional arabic/north african clothing involves multiple layers of cloth, often black and it usually cover most of the skin. how do the survive in 50°c desert, how do they keep cool?
Non native speaker here, I hope you understand my question.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ci63if/eli5_traditional_arabicnorth_african_clothing/
{ "a_id": [ "ev1s2pp", "ev1s5zt", "ev29jwg", "ev2fexc" ], "score": [ 6, 14, 26, 3 ], "text": [ "It is very counterintuitive, which means the opposite of what you naturally assume, but the cultures that use that clothing actually feel cooler. \n\nSimply put, the clothing in...
[]
[]
[ [], [], [], [] ]
371o1l
why does reinstalling a program fix problems that it had before?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/371o1l/eli5_why_does_reinstalling_a_program_fix_problems/
{ "a_id": [ "crixgqg" ], "score": [ 2 ], "text": [ "Because reinstalling overwrites certain parts of a program.\n\nIt fixes problems cause by file/registry corruption, and update errors.\n\nWhen you reinstall a program, registry entries are (re)made for the new install, and new versions of the pro...
[]
[]
[ [] ]
bc1bs6
what is ray tracing and how does it work.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bc1bs6/eli5_what_is_ray_tracing_and_how_does_it_work/
{ "a_id": [ "ekn0bjw" ], "score": [ 20 ], "text": [ "Former game developer here,\n\nThis is a technique used to render 3D. The idea is for each pixel on your screen, you cast a virtual ray of light - you draw a line straight out into the 3D world until it hits a polygon. You then calculate how tha...
[]
[]
[ [] ]
60mpx6
what is a constitution and why do some countries (such as the usa) have one, where as others (such as the uk) don't?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/60mpx6/eli5what_is_a_constitution_and_why_do_some/
{ "a_id": [ "df7lsfa", "df7mnsm" ], "score": [ 11, 10 ], "text": [ "A constitution is the top rule book in the land. What it does is lays out how the government will work and what it is allowed to do. e.g. the USA has a provission for free speech so the government can't make a law that goe...
[]
[]
[ [], [] ]
7vwtyu
how can we be getting live video and/or images from a spaceship that's hundreds of miles away?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7vwtyu/eli5_how_can_we_be_getting_live_video_andor/
{ "a_id": [ "dtvod83", "dtvodc6" ], "score": [ 3, 3 ], "text": [ " > How can we be getting live video and/or images from a spaceship that's hundreds of miles away?\n\nRadio. We have had radios for a fairly long time and have been using them to transmit information. Video is just another k...
[]
[]
[ [], [] ]
16sbt6
how much legal weight does an eula actually carry?
For example: Say I don't even bother reading through an End User License Agreement and just click "accept" so that I can get to playing with a new device. Something in the EULA states that they may remotely erase or otherwise turn the device non-functional if they suspect that any third-party unauthorised content is be...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/16sbt6/eli5_how_much_legal_weight_does_an_eula_actually/
{ "a_id": [ "c7z1ts9", "c7z59m0", "c7z5qlf" ], "score": [ 2, 3, 2 ], "text": [ "EULA's are not settled laws. Some EULA conditions have been upheld, and others have been rejected. So far though, no one has judged that EULA's are, in and of themselves, non-binding. As such compani...
[]
[]
[ [], [], [] ]
1g6k0c
how tinted windows let you see out but not in?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1g6k0c/eli5_how_tinted_windows_let_you_see_out_but_not_in/
{ "a_id": [ "cah98hr" ], "score": [ 7 ], "text": [ "i'm guessing you're talking the one way vision mirror tint. but normal dark tint has a similar effect of blocking you seeing inside. \nthe mirror tint works on the principle that normally one side of where you put the tint is darker than the oth...
[]
[]
[ [] ]
2cyt9d
why do birds never seem to poop from really high up in the sky?
They only seem to poop when they are flying low!
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2cyt9d/eli5_why_do_birds_never_seem_to_poop_from_really/
{ "a_id": [ "cjkdn6r", "cjkdnwk" ], "score": [ 2, 5 ], "text": [ "To make sure it hits a car, because they're assholes with wings.", "Birds evacuate their bowels as soon as they can because it lightens their load when they go to take off. It takes a lot of energy to fly and even more t...
[]
[]
[ [], [] ]
76hrdt
[maths] on the curve x^x, why is the lower limit (when x > 0) 1/e or 0.368.
So I was watching a video on why 0^0 is equal to 1 and the professor showed a progression of x^x with ever smaller values of x. In the decimals the product eventually stopped diminishing and swung back round, indicating a lower limit on the curve. I was wondering why, what makes this point significant?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/76hrdt/eli5_maths_on_the_curve_xx_why_is_the_lower_limit/
{ "a_id": [ "doe3d7m" ], "score": [ 5 ], "text": [ "The derivative function of x^x is x^(x)(ln(x)+1). Therefore it has a local minimum at the point where x^(x)(ln(x)+1) = 0, which happens when ln(x)+1=0, i.e. x = 1/e. There's no explanation as to \"why\", that's just how the math works out." ] }
[]
[]
[ [] ]
6etn4e
how did/do scientists discover the structure of protein subunits at such high resolution?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6etn4e/eli5_how_diddo_scientists_discover_the_structure/
{ "a_id": [ "dicwvsi" ], "score": [ 2 ], "text": [ "This technique was originally performed via x-ray crystallography. I'm certainly no expert, but from my memory of biochem, the process is incredibly painstaking and involves cooling the proteins incredibly slowly, then exposing the crystals to x-...
[]
[]
[ [ "https://en.wikipedia.org/wiki/X-ray_crystallography" ] ]
2ihzog
why can't we make batteries with millions of tiny capacitors like we can make computer chips with millions of tiny transistors?
I know i'm probably being stupid, as i'm sure it would have been done already, but i've always wondered why not. Lighter, tougher, chemical-free batteries would revolutionise our tech!!
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2ihzog/eli5_why_cant_we_make_batteries_with_millions_of/
{ "a_id": [ "cl2bull" ], "score": [ 2 ], "text": [ "You can - capacitors can be made on an integrated circuit easily. That's what most computer RAM is - billions of tiny capacitors. However, the number of capacitors doesn't make any difference to the energy storage capacity. One chip full of billi...
[]
[]
[ [] ]
2inshu
how is a nuclear powered ship able to sail for so long without refueling?
Obviously the fuel that powers the ship doesn't pop out of nowhere, so how can a nuclear powered ship such as the USS Nimitz go for 10+ years without refueling whereas a similarly sized ship propelled by conventional means can only sail for at most a few months without stopping for fuel? Is it due to the large amount o...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2inshu/eli5_how_is_a_nuclear_powered_ship_able_to_sail/
{ "a_id": [ "cl3r85a", "cl3u0sa" ], "score": [ 14, 8 ], "text": [ " > How is a nuclear powered ship able to sail for so long without refueling?\n\nIt has to do with a concept called [energy density](_URL_0_), which is how much energy you can extract from a fuel per unit of mass.\n\nFrom [t...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Energy_density", "http://www.cleanenergyinsight.org/interesting/how-far-will-your-energy-go-an-energy-density-comparison/" ], [] ]
1nzqhn
how do film actors memorise and deliver lines when scenes are filmed out of order?
As someone who loves acting, I understand how a script is memorised and delivered. My experience is largely with stage, though, where you get your lines drilled into you through multiple rehearsals and they are always performed exactly as they appear in a script. In films, however, actors not only have huge amounts of...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1nzqhn/eli5_how_do_film_actors_memorise_and_deliver/
{ "a_id": [ "ccniymb", "ccnnnc1" ], "score": [ 8, 2 ], "text": [ "I believe it's because of how much script they have to learn. While on stage, they have to memorize their lines for the whole time (say 90 minutes), in a 90 minute movie, the film may be shot over several months. So really t...
[]
[]
[ [], [] ]
1qv3jl
if you had a perfect engine and no friction; how many miles would a gallon of gasoline give?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1qv3jl/eli5_if_you_had_a_perfect_engine_and_no_friction/
{ "a_id": [ "cdgsr7t" ], "score": [ 2 ], "text": [ "This is a great question." ] }
[]
[]
[ [] ]
44edhh
how does an unknown soldier end up in a cemetery in america?
I understand that uniforms designate if they were American or not but I noticed while doing some genealogy research that there are many states that have unknown soldiers from various wars. For example if there was an unknown American soldier that died during Normandy how do they choose to bury him in Kansas as opposed ...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/44edhh/eli5_how_does_an_unknown_soldier_end_up_in_a/
{ "a_id": [ "czpmgbl" ], "score": [ 23 ], "text": [ "The unknown soldier is a concept. He /She is the idea that there is many many that died in far away and in closer lands that never got a decent _URL_0_ reward ,no fan fare and that to them we also owe a thank you and respect. The soldier in the...
[]
[]
[ [ "burial.No" ] ]
2q71mm
how do the testing meters built on to some batteries work?
I don't know if they're even around anymore, but I'm talking about the ones where you'd put your fingers on dots and a colored strip would indicate the charge level.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2q71mm/eli5_how_do_the_testing_meters_built_on_to_some/
{ "a_id": [ "cn3g916", "cn3nmqj" ], "score": [ 3, 2 ], "text": [ "That's a small LCD. \n\nThe crystals in a LCD are mostly randomized. When an electric field is applied, they align in a direction. There is a polarized film over the substrate to which liquid crystals were deposited, and the...
[]
[]
[ [], [] ]
bd8de8
why is it illegal to incentivize voting?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bd8de8/eli5_why_is_it_illegal_to_incentivize_voting/
{ "a_id": [ "ekwf6hf" ], "score": [ 2 ], "text": [ "the logic is that if you are incentivize people, they will vote for whoever you support and its essentially buying votes. Take a local election where almost nobody votes but I am running for office and i tell people ill give them 100 dollars to ...
[]
[]
[ [] ]
bxjtng
why is it that sometimes when drinking hot/cold water you feel it down your chest but other times you don’t?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bxjtng/eli5_why_is_it_that_sometimes_when_drinking/
{ "a_id": [ "eq7rraz", "eq7vvz9", "eq7wwy2", "eq7y8qu", "eq7ya2z", "eq7z2ep" ], "score": [ 91, 51, 58, 15, 4, 2 ], "text": [ "Or what about when you drink water and instantly feel it spreading out into your entire body?", "I might be wrong (don’t let my ...
[]
[]
[ [], [ "https://www.karger.com/Article/Pdf/93877" ], [], [], [], [] ]
4h44n1
why is cymbalta withdrawal so devastating that a class action lawsuit was filed for sufferers what is happening in the body to make you "feel brain zaps"
Why is Cymbalta withdrawal so devastating the FDA committee had to report on "Cymbalta Discontinuation Syndrome"? If I'm late taking it by even two hours the side effects are so horrible and intense. What is causing me to actually " feel my brain " /brain zaps
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4h44n1/eli5_why_is_cymbalta_withdrawal_so_devastating/
{ "a_id": [ "d2n8eta", "d2nmtzv" ], "score": [ 4, 2 ], "text": [ "There's a bunch of research about [Antidepressant Discontinuation Syndrome](_URL_0_) but nothing that says what causes it.\n\nOne of the leading thoughts is, due to the short half-life of some SSRIs, including Cymbalta and E...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Antidepressant_discontinuation_syndrome" ], [] ]
99383i
when you brush your teeth in the morning you have freshness mostly throughout the day but when you brush your teeth at night before bed you have bad breath(morning breath) when you wake. why does this occur?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/99383i/eli5_when_you_brush_your_teeth_in_the_morning_you/
{ "a_id": [ "e4kl1hb", "e4kn575", "e4kpbl0", "e4kru9e", "e4ks1hq", "e4kt2bi", "e4ktqko", "e4kv70b", "e4kv9ct", "e4kwinb", "e4kx8mi", "e4l2aiq", "e4l2y7r", "e4l7ovt" ], "score": [ 3975, 425, 464, 11, 2, 33, 2, 35, 22, 1...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [], [], [], [] ]
2jilbk
why indian caste system puts white/light-skinned people at the top
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2jilbk/eli5why_indian_caste_system_puts/
{ "a_id": [ "clc1j89", "clcra6p" ], "score": [ 4, 2 ], "text": [ "A lot of cultures value \"whiteness\" it's seen as higher class. Darker skin identifies with working outside, being poor etc.. it really sucks", "white skin means not working outside, and rich people dont work outside " ...
[]
[]
[ [], [] ]
6lr57m
why are some court cases allowed to be filmed, but others aren't?
For example, the Hulk Hogan and OJ trials have tons of footage, but from what I recall the Michael Jackson trial was reenacted based on the transcripts for TV.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6lr57m/eli5_why_are_some_court_cases_allowed_to_be/
{ "a_id": [ "djvzptx" ], "score": [ 3 ], "text": [ "In the U.S., it very much depends on the state and the individual judges. Some states have bans on recording with cell phones, some allow them with permission of judges. You would have to look up the individual state for the rules. Here: \n\n_URL...
[]
[]
[ [ "https://rtdna.org/article/cameras_in_the_court_a_state_by_state_guide" ] ]
7670tr
caterpillar life
How are caterpillars born. Like do butterflies get it on? Lol
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7670tr/eli5_caterpillar_life/
{ "a_id": [ "dobrpv5" ], "score": [ 3 ], "text": [ "caterpillars hatch from eggs. \n\nAnd yes, butterflies do \"get it on\" to use the parlance of our times. They mate tail to tail, often for several hours, while perched. The female than goes and lays her eggs. " ] }
[]
[]
[ [] ]
xwxa8
how to tell someone's country of origin / heritage from their last name.
Also I am curious how to do the same with general features. My dad is really good at it especially with last names but doesn't seem to know how to explain it.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/xwxa8/eli5_how_to_tell_someones_country_of_origin/
{ "a_id": [ "c5qajia", "c5qb2l3", "c5qd83c", "c5qdt9v", "c5qhgrc", "c5qmag3" ], "score": [ 3, 8, 5, 3, 2, 2 ], "text": [ "I think it comes with experience. The more people you meet the more you notice patterns. Some surnames just sound German or Irish or I...
[]
[]
[ [], [], [], [], [], [] ]
4fknv4
why does shoplifting lead to criminal charges but not failure to pay for a service?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4fknv4/eli5_why_does_shoplifting_lead_to_criminal/
{ "a_id": [ "d29nku8" ], "score": [ 3 ], "text": [ "Because shoplifting is theft of merchandise, not a service. Theft of service is something like getting a haircut and not paying, getting your nails done and not paying (or paying with a fraudulent means of payment, like a bad check...which would ...
[]
[]
[ [] ]
4wjgwh
germs in the kitchen: what's harmful, what's not so much?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4wjgwh/eli5_germs_in_the_kitchen_whats_harmful_whats_not/
{ "a_id": [ "d67i2b3" ], "score": [ 2 ], "text": [ "As someone who works with food at a food manufacturing plant, you really don't want to risk getting food in places it shouldn't be, lest you end up sniffing something terrible in two weeks time. That's usually the most bad thing that will happen...
[]
[]
[ [] ]
1n0luy
what does caliber mean in ammunition?
Edit: Thanks!
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1n0luy/eli5_what_does_caliber_mean_in_ammunition/
{ "a_id": [ "ccec6b2" ], "score": [ 3 ], "text": [ "The size.\n\nIt's how much of an inch it is in diameter." ] }
[]
[]
[ [] ]
161xx5
why is there no ged equivalent for a college degree?
Isn't a college degree just a certificate that you learned college level things? Why can't you be self taught and take a GED-like exam?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/161xx5/why_is_there_no_ged_equivalent_for_a_college/
{ "a_id": [ "c7rxyna", "c7rycpm", "c7rz259", "c7s0lx3" ], "score": [ 3, 3, 2, 2 ], "text": [ "We as a society don't necessarily think everyone ought to get a college degree, so we don't set up programs to make it easier.", "No a college degree isn't anything like a high...
[]
[]
[ [], [], [], [] ]
60ysn0
why were monorails supposed to be the future?
I get [why monorails never caught on](_URL_0_) but why were the supposed to be better and 'the future of transportation' in the first place?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/60ysn0/eli5_why_were_monorails_supposed_to_be_the_future/
{ "a_id": [ "dfamwwy" ], "score": [ 2 ], "text": [ "They actually still are the future. People in the 40s knew about the theoretical Maglev. _URL_0_\n\nThese trains could eventually move at about 1500 MPH on magnets and electricity alone. Some Asian countries have built these on a slower scale rec...
[]
[ "https://www.reddit.com/r/explainlikeimfive/comments/23npj9/eli5_why_am_i_not_commuting_to_work_on_a_mono_rail/cgytsgr/" ]
[ [ "https://en.wikipedia.org/wiki/Maglev" ] ]
1i3ce1
how can websites like hotwire and priceline get you cheaper arline tickets and hotel rooms?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1i3ce1/how_can_websites_like_hotwire_and_priceline_get/
{ "a_id": [ "cb0kr0d" ], "score": [ 3 ], "text": [ "It is beneficial for airlines to fill empty seats and hotels to fill empty rooms, rather than to leave them empty. They form agreements with these companies to offer lower priced rooms, but often do so in secret so that the consumer doesn't know ...
[]
[]
[ [] ]
1lx3cz
the sri lankan civil war
I know the two sides. I don't understand how it came to be, and how after decades of fighting, it ended.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1lx3cz/eli5_the_sri_lankan_civil_war/
{ "a_id": [ "cc3rw8n" ], "score": [ 2 ], "text": [ "The roots of the conflict go back to British rule. The main ethnic groups are the Tamil (minority population) and the Sinalese (majority population). The Brits favored the minority Tamils for education, business, and political rule in order to ...
[]
[]
[ [] ]
5zynve
how does twitter know that your tweet is coming from one location (country) even though your gps is turned off
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5zynve/eli5_how_does_twitter_know_that_your_tweet_is/
{ "a_id": [ "df22m07", "df22nc6", "df238l4" ], "score": [ 3, 2, 3 ], "text": [ "When you connect a device to the internet, it gets assigned an IP address. Websites can tell the general area where you are based on your IP address. You can make it look like you're using a different I...
[]
[]
[ [], [], [] ]
16kv2f
credit cards and good/bad credit
How does the whole credit system work, and why is it important?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/16kv2f/eli5_credit_cards_and_goodbad_credit/
{ "a_id": [ "c7wze0l" ], "score": [ 3 ], "text": [ "A credit card is basically an IOU. When you swipe it, you promise you will pay that back to the company. You get a certain amount to pay it back without paying extra (interest) on your purchases. However, whatever you do not pay off gets rolled t...
[]
[]
[ [] ]
cgtytg
why can we see light reflections from an angled surface? how are photons getting back to us?
Imagine driving at night and your headlights point at a sign angled 45° away from you. Shouldn’t the photons reflect off the surface at that angle, and only appear lit to things receiving those photons? I’m picturing the sign as a mirror and the photons as whatever is entering the mirror, you cannot see what is on your...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/cgtytg/eli5_why_can_we_see_light_reflections_from_an/
{ "a_id": [ "eul2cd1" ], "score": [ 8 ], "text": [ "You're following the old axiom from physics class of \"the angle of incidence = the angle of reflection\". Physics class almost always modeled the world with a level of perfection of surfaces and materials rarely or never really found - e.g. the...
[]
[]
[ [] ]
70jv6s
i heard your body makes 17 million red blood cells a second. i don't know if this is completely true, but i started to think. what happens to dead blood cells? does your body recycle them or throw them out with the rest of your waste?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/70jv6s/eli5_i_heard_your_body_makes_17_million_red_blood/
{ "a_id": [ "dn3oa9y", "dn3pt92" ], "score": [ 11, 3 ], "text": [ "As red blood cells age, they eventually reach a state called \"programmed cell death\". Their outer membrane changes, and your body's immune system sees them as a target, then kills them.\n\nMost of the stuff left over is r...
[]
[]
[ [], [] ]
2cvv14
if antibacterials don't kill virus', why do we wash our hands or use hand sanitizes to spread an illness to others when we're sick?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2cvv14/eli5if_antibacterials_dont_kill_virus_why_do_we/
{ "a_id": [ "cjji4rp", "cjji7yr", "cjjj87l" ], "score": [ 2, 5, 6 ], "text": [ "Well... first of all, diseases are caused by more than just viral infections. Quite often, bacterial infections can be just as deadly and that is why we wash our hands and use sanitizers. \n\nAlso, the ...
[]
[]
[ [], [], [] ]
an9vcm
why does handsoap give such a different feeling when you rinse your hands compared to liquid dispensable soap?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/an9vcm/eli5_why_does_handsoap_give_such_a_different/
{ "a_id": [ "efru81z" ], "score": [ 11 ], "text": [ "I'm making the assumption you are talking about bar soap versus liquid soap, and not dish detergent versus hand soap. \n\nThe simple answer is that they are not the same thing. Liquid soap is not just watered down bar soap, although you could ma...
[]
[]
[ [] ]
2bup1w
how reaction wheels (gyroscopes) in spacecraft work? how do they produce force?
I've searched and found several good explanations on gyroscopes, I learned a lot about them, why exactly they resist rotation and why they can sometimes appear to be resisting gravity. But I still don't get how reaction wheels work in zero gravity, how can they start rotating a spacecraft when it is completely still? (...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2bup1w/eli5how_reaction_wheels_gyroscopes_in_spacecraft/
{ "a_id": [ "cj93cb6", "cj93yrx", "cj94koo" ], "score": [ 2, 2, 2 ], "text": [ "Good point. I just thought about it and I think this is reason: if you have a disc spinning clock wise and it has a large mass (gyros usually do) and you apply brakes to it, the space craft will start s...
[]
[]
[ [], [ "http://www.youtube.com/watch?v=n_6p-1J551Y" ], [] ]