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4nu7pf | how were red, yellow, and blue determined to be the primary colors? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4nu7pf/eli5_how_were_red_yellow_and_blue_determined_to/ | {
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"**tl;dr our eyes just evolved in a way that they are only able to see three colors - other species have different primary colors**\n\nFirst you have to understand what the primary colors mean - that any color that we can see can be made by mixing... | [] | [] | [
[
"http://m.eet.com/media/1077792/cmy-primaries.gif"
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5abkwo | what's that "floating" feeling i sometimes get when sitting or lying down? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5abkwo/eli5_whats_that_floating_feeling_i_sometimes_get/ | {
"a_id": [
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"score": [
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"text": [
"Sometimes the floating feeling is the fluids in your ear sloshing in just the right way and you sort of think you're falling. The feeling could also be a sort of sensory deprivation where you don't feel anything new touch your body except from th... | [] | [] | [
[]
] | ||
6qnbax | why are rappers often involved in feuds with other rappers? is it necessary for their career in order to attract media attention or is all of it just made up for the purposes of making money? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6qnbax/eli5_why_are_rappers_often_involved_in_feuds_with/ | {
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"text": [
"While there are always legitimate dislikes between people in the same field, much of it is for the same reason you see a lot of \"featuring\" credits on songs: it broadens your au... | [] | [] | [
[],
[
"https://books.google.co.uk/books?id=PaaM4u5q0R0C&pg=PA30&lpg=PA30&dq=hip+hop+as+conflict+resolution+afrika&source=bl&ots=57QJxw2b3g&sig=BtmrV7mRPCbY2Eu2g3B24Qykj14&hl=en&sa=X&ved=0ahUKEwiorrH64bPVAhUBVxoKHdkGB3gQ6AEIUzAM#v=onepage&q&f=false"
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2d1jjp | why can't someone duplicate video games by simply putting the files onto a second cd/cart | What I mean is why is it so hard to pirate console games such as a Wii/Xbox/PS3 etc. The way I understand it you should be able to burn the contents from, let's say Call Of Duty: Black Ops, onto another disc and be able to put it in your PS3 and play it (I know it's blue ray, but you get the point)
How would the conso... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2d1jjp/eli5_why_cant_someone_duplicate_video_games_by/ | {
"a_id": [
"cjl60rs"
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"score": [
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"text": [
"Basically there is a special area on the discs that are produced that contain the data for authentication with the console/device. You can't easily copy this data, or burn them, with any discs or burners available commercially. This is why most c... | [] | [] | [
[]
] | |
blaob7 | windows search files instantly | Windows 10 has this magnifying glass where you instantly can search through all files on your pc. How is that possible? Isn't that an extreme amount of data to instantly search through for keywords?? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/blaob7/eli5_windows_search_files_instantly/ | {
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"emmwnk3",
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"score": [
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"text": [
"If it actually searched the files, it would be.\n\nHowever, what it searches is a multi-dimensional table of keywords, created and updated in the background whenever a file is created or changed, which ... | [] | [] | [
[],
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4wa4xt | how can the set of rational numbers be proved to be countably infinite? | In [a Numberphile video](_URL_0_), they explain that if you write out all the (positive) rational numbers like this:
1/1 | 1/2 | 1/3 | 1/4 | ...
2/1 | 2/2 | 2/3 | 2/4 | ...
3/1 | 3/2 | 3/3 | 3/4 | ...
4/1 | 4/2 | 4/3 | 4/4 | ...
... | ... | ... | ... | ...
and attempt to list them row by row, you won't be ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4wa4xt/eli5_how_can_the_set_of_rational_numbers_be/ | {
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"text": [
" > Attempting to list every rational number row by row would indicate that the set is uncountabley infinite\n\nThis is the mistake. In order to show that a set is uncountable you need to prove that *no ... | [] | [
"https://youtu.be/elvOZm0d4H0?t=2m51s"
] | [
[
"https://en.wikipedia.org/wiki/Cantor%27s_diagonal_argument"
],
[],
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2g46qf | how come increased memory on an iphone is so expensive? a 16gb micro sd only cost $10 | Why does it cost $100 more when buying an Iphone. Just take the same Micros sd and throw it in for just $10 more? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2g46qf/eli5_how_come_increased_memory_on_an_iphone_is_so/ | {
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"score": [
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"text": [
"Because they can. If people didn't pay they wouldn't do it. Nice mark up on the memory cup though they probabl... | [] | [] | [
[],
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4bmx91 | does a sonic boom only occur at the moment you break the sound barrier or is it constant and if it is does it get louder the faster you go? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4bmx91/eli5_does_a_sonic_boom_only_occur_at_the_moment/ | {
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"score": [
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"text": [
"It is constant.\n\nA sonic boom is a [shock wave](_URL_1_) that travels outward from the plane. It follows t... | [] | [] | [
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"https://youtu.be/JO4_VHM69oI?t=2m55s"
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g2kro3 | why do books not have age ratings, but age demographics/target audiences instead? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/g2kro3/eli5_why_do_books_not_have_age_ratings_but_age/ | {
"a_id": [
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"text": [
"Because children generally have no interest in buying or reading novels for adults. For an 8 year-old reading a novel is hard, much harder than watching an R-rated movie or playing an M-rated video game, so most of them won't even try.\n\nIf that... | [] | [] | [
[]
] | ||
5uhhur | why can politicians get away with telling blatant lies? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5uhhur/eli5_why_can_politicians_get_away_with_telling/ | {
"a_id": [
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jgdwu | what's that white/blue dot that flashes somewhere in the corner or sides of my eye sometimes? | I remember a bunch of people saying it was a ghost or something showing itself to a person, but I'm pretty sure that's bullshit. So is it something fucking up in my eye or an illusion or what? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jgdwu/eli5_whats_that_whiteblue_dot_that_flashes/ | {
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"text": [
"That happens to me when I look at something bright then look away.",
"In the industry, we call them cigarette burns",
"That happens to me when I look at something bright th... | [] | [] | [
[],
[],
[],
[]
] | |
6t1kqo | why are some websites urls alternately written in short form? for example, _url_0_ vs _url_1_ or _url_2_ vs _url_3_? if this short form is also functional, why even bother using or advertising the full .com url? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6t1kqo/eli5_why_are_some_websites_urls_alternately/ | {
"a_id": [
"dlh6xh6"
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"score": [
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"text": [
"It's to save space for services like Twitter which carry a character limit, similarly for those that don't have a mobile phone plan with unlimited texting capabilities. You'll notice a lot of short form URLs are merely tailed with a short string ... | [
"redd.it",
"reddit.com",
"bit.ly",
"bitly.com"
] | [] | [
[]
] | ||
8mzh4y | passengers sitting in the emergency exit row on planes, what happens if they pull the emergency exit lever mid flight? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8mzh4y/eli5_passengers_sitting_in_the_emergency_exit_row/ | {
"a_id": [
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"text": [
"Nothing. The emergency door opens inwards and the cabin is pressurized, so the dramatic air pressure difference holds the door shut with immense force even if you disengage the locking mechanism.\n\nI'm not sure what sort of alarms/lights any in... | [] | [] | [
[]
] | ||
4toh2e | how do car keys with automatic door unlockers work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4toh2e/eli5_how_do_car_keys_with_automatic_door/ | {
"a_id": [
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"score": [
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"text": [
"Bluetooth. The two devices (car and keys) are paired, just like a headset/headphones to a phone, or a keyboard/mouse to a computer, or your phone to the car's headunit (stereo/radio). When in range, the devices get connected, the car thus unlocks... | [] | [] | [
[]
] | ||
4qcl8d | when drinking water, how is the body able to process how much is being taken in and so accurately and quickly tell you to stop drinking? | My physiology professor mentioned it briefly in class once but it just fascinated me how the body is able to tell you as you're gulping down water when your thirst is quenched | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4qcl8d/eli5_when_drinking_water_how_is_the_body_able_to/ | {
"a_id": [
"d4ry7c4"
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"score": [
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"text": [
"Most of what causes you to feel\"thirsty\" is the concentration of salt and other substances (potassium, calcium, etc) in your blood (aka blood osmolality). This concentration goes up when the amount of water in your blood goes down, and the conc... | [] | [] | [
[]
] | |
deibtv | the research that won the nobel prize for medicine | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/deibtv/eli5_the_research_that_won_the_nobel_prize_for/ | {
"a_id": [
"f2vef2f"
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"score": [
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"text": [
"So it took some digging to find the original citations but here is my best shot. Judging by your OP you have some knowledge so I got into a little more detail than normal. Theres a ***SHORT/ELI5*** version at the bottom if that's what you prefer!... | [] | [] | [
[]
] | ||
6ffcb1 | why do some puppies' bottom half tip up when they're eating? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6ffcb1/eli5_why_do_some_puppies_bottom_half_tip_up_when/ | {
"a_id": [
"dii5xtk"
],
"score": [
2
],
"text": [
"Their heads outweigh their butts. They are stable while their heads are over their front paws, but not once they lean over."
]
} | [] | [] | [
[]
] | ||
6ko1e0 | if hot air rises and cool air rushes down to replace it, how can we have really hot days with no wind? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6ko1e0/eli5_if_hot_air_rises_and_cool_air_rushes_down_to/ | {
"a_id": [
"djnh9he"
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"score": [
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],
"text": [
"Typically the air is warmest near the ground because the sun warms the ground and the air next to it the most. Air gradually becomes cooler the higher up you go. This layering of temperatures is a common reason for wind, actually, as air shifts ... | [] | [] | [
[]
] | ||
2qae1o | how does my car move forward in drive when on normal level ground when i'm not even pressing the gas? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2qae1o/eli5_how_does_my_car_move_forward_in_drive_when/ | {
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"score": [
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2,
22
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"text": [
"The engine of a car is a self sustaining thing. If the engine actually stopped when the car stopped then you would need to turn it on again to start driving (some newer cars actually do this, but that... | [] | [] | [
[],
[],
[
"https://www.youtube.com/watch?v=leCEmJA0WsI"
]
] | ||
5lw55a | why do some surgeries result in equipment being left behind in patients (e.g. scissors)? | How would a nurse or doctor forget that equipment is left behind? Doesn't the hospital check if equipment is lost at the operating theatre? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5lw55a/eli5_why_do_some_surgeries_result_in_equipment/ | {
"a_id": [
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"score": [
4,
2
],
"text": [
"This is very, very, very, nearly impossibly rare. I trained as an O R nurse in the US in the 1970's. We counted all the instruments before surgery and after. These numbers were written down both times. The patient's incis... | [] | [] | [
[],
[]
] | |
3q2y80 | why is the "eye" of the storm so calm. why isnt it the worst part because its in the centre | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3q2y80/eli5_why_is_the_eye_of_the_storm_so_calm_why_isnt/ | {
"a_id": [
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"score": [
3,
6
],
"text": [
"Because in the eye of the storm the wind is deflected and spiral upwards and around it instead of going right past it.",
"It's like when water's going down a plughole. When it spins, there's no water in the middle. If yo... | [] | [] | [
[],
[]
] | ||
4i7uji | how can programmers create entirely new things out of code when computers are built only to recognize a limited selection of things? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4i7uji/eli5_how_can_programmers_create_entirely_new/ | {
"a_id": [
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"score": [
39,
3,
2
],
"text": [
"How can writers create entirely new stories out of words when there are only a limited selection of letters?",
"Came here to give the answer that PatriotGrrrl gave, but since (presumably) she alrea... | [] | [] | [
[],
[],
[]
] | ||
2mzepn | it is generally common knowledge that psychics are scams, my question is how do they still make enough money to keep their business going? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mzepn/eli5it_is_generally_common_knowledge_that/ | {
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"text": [
"As P.T. Barnum said, there is a sucker born every minute. That is how.",
"(1) Not everyone accepts the idea that they're scams.\n\n(2) Even some people... | [] | [] | [
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4498fx | why do spicy foods burn on the way out? wouldn't the gastric acid produced in our stomachs take care of breaking that down enough that it wouldn't? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4498fx/eli5_why_do_spicy_foods_burn_on_the_way_out/ | {
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"text": [
"Not everything is completely neutralized in digestion. Your pee will smell like coffee after you drink coffee. T... | [] | [] | [
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547ish | integrated graphics fit on the cpu, and then gpus are a really big pcb, why is their size differ so much than their perfomances? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/547ish/eli5_integrated_graphics_fit_on_the_cpu_and_then/ | {
"a_id": [
"d7zii5d"
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"score": [
4
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"text": [
"Remember that the CPU doesn't sit by itself in isolation. It has a motherboard that includes memory, buses, cooling and a variety of other things. The graphics card acts as the motherboard to the GPU and provides those same services.\n\n"
]
} | [] | [] | [
[]
] | ||
21s32j | eli: why do many people not see downloading movies/songs/software illegally (p2p) as a crime? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/21s32j/eli_why_do_many_people_not_see_downloading/ | {
"a_id": [
"cgfysu6"
],
"score": [
3
],
"text": [
"I wouldn't go that far, but when you download something, you aren't stealing it (aka taking it away) from someone, so it is a victimless crime. "
]
} | [] | [] | [
[]
] | ||
77zvhd | why are research papers written and published in a two-column format? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/77zvhd/eli5_why_are_research_papers_written_and/ | {
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"One of the reasons... | [] | [] | [
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39vrih | why is trench warfare no longer used? | Is it because of the environment that more recent wars are fought, or is it just not the best way to fight a war anymore? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/39vrih/eli5_why_is_trench_warfare_no_longer_used/ | {
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"text": [
"Trench warfare was never the best way to fight a war, it's just war has evolved to where we don't have to fight that way anymore. WW1 gave us high capacity machine guns and artil... | [] | [] | [
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3loqki | what really happens in court cases where the evidence is illegally obtained? | My general knowledge, which is based on pop culture and what I heard from others, is that the accused can simply walk. Is that true? What actually goes down in courts, when it comes to light that either side has obtained some evidence illegally? Does it make a difference if it's a petty crime or something really seriou... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3loqki/eli5_what_really_happens_in_court_cases_where_the/ | {
"a_id": [
"cv7ywwo",
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"score": [
3,
3
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"text": [
"If it's obtained illegally, then the jury will never see that evidence. If the illegally obtained evidence is the only evidence, then the person will likely walk. \n\nDoesn't matter if it's jaywalking or murder. ",
"Just... | [] | [] | [
[],
[]
] | |
2151y2 | why can't you taste your own tongue? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2151y2/eli5_why_cant_you_taste_your_own_tongue/ | {
"a_id": [
"cg9ofl5"
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"text": [
"You're tasting it all the time, so your brain interprets it as the baseline, which means you don't notice it. \n\nIt's just like when you're around a smell for a long time and you don't even smell it anymore."
]
} | [] | [] | [
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] | ||
fgao0e | if the sun is constantly bombarding the earth with energy, isn’t the earth continually gaining energy? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fgao0e/eli5_if_the_sun_is_constantly_bombarding_the/ | {
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"text": [
"So the answer is sort of.\n\nYes where the sun hits the earth it is gaining energy. That energy is absorbed primarily as heat. Meaning as the day goes on it gets warmer, as you'd... | [] | [] | [
[],
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k23ep | color theory. what is the "value" of a color? what is hue? lightness vs. brightness, etc. | Today was my second day of color theory at school and while I feel like I have a basic understanding of it, I still found myself struggling to completely understand the difference between lightness, brightness, darkness, value, color, hue, saturation and so on. I understand that we see color (or don't) depending on ho... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/k23ep/eli5_color_theory_what_is_the_value_of_a_color/ | {
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"score": [
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4,
2,
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4,
2
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"text": [
"Suppose Tommy has a huge box of crayons, tons and tons of colours (yes coloUrs). He sees that if he picks all the crayons that have a l... | [] | [] | [
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[],
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[]
] | |
5exk8b | why do we close our eyes when we hear a loud noise? for an example when someone is hammering in a nail. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5exk8b/eli5_why_do_we_close_our_eyes_when_we_hear_a_loud/ | {
"a_id": [
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"score": [
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2,
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"text": [
"Your eyes are the single most important part of perception as a human - People who cannot see are massively disabled and their entire life changes.\n\nLikewise, it makes sense to... | [] | [] | [
[],
[],
[],
[]
] | ||
299afd | why do developers still create x86 applications? | From what I understand the majority of processors are 64-bit compatible, it was only a few pre-pentium 4 processors that are not. So why do developers still create x86 applications? Who are they afraid of leaving behind? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/299afd/eli5_why_do_developers_still_create_x86/ | {
"a_id": [
"ciins7z",
"ciinxsu",
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"score": [
2,
4,
2
],
"text": [
"Despite CPU's being 64-bit capable, millions of people still use Windows XP, which is NOT 64-bit capable. There are also still millions of 32-bit Windows Vista/7 installations out there. Then, when you ... | [] | [] | [
[],
[],
[]
] | |
81ay6c | how exactly does self checkout prevent ppl from stealing, techonologically done, apart from human supervision? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/81ay6c/eli5_how_exactly_does_self_checkout_prevent_ppl/ | {
"a_id": [
"dv1u33v",
"dv1uoss",
"dvb4971"
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"score": [
15,
4,
2
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"text": [
"One thing it does is weigh the items. If there are more things in the bag than you've scanned, it will summon an employee. This helps prevents you \"forgetting\" to scan something, or scanning somethin... | [] | [] | [
[],
[],
[]
] | ||
7updt6 | what is the difference between persons, people, and peoples? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7updt6/eli5_what_is_the_difference_between_persons/ | {
"a_id": [
"dtm4bnz",
"dtm50zs"
],
"score": [
3,
5
],
"text": [
"Persons are individuals. People is human being in general. Peoples are groups of people that are divided. That's what i've been told anyway.",
"\"People\" is your general purpose collective noun for a group of humans.... | [] | [] | [
[],
[]
] | ||
3lvymi | why is it not possible to test for a deficiency in dopamine or serotonin instead of the current practice of trying several psychiatric medications until you find a method of action that works? | I have tried four different SSRI's and had bad experiences on all of them. I'm finally trying a drug that works on dopamine instead of serotonin and I feel better than I have felt in years. I wish there was some way of testing dopamine/serotonin deficiency, would have saved me years of med experimentation. Any possibil... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3lvymi/eli5why_is_it_not_possible_to_test_for_a/ | {
"a_id": [
"cv9vrim"
],
"score": [
3
],
"text": [
"Depression is typically associated with specific parts of the brain acting differently. When you're trying to test the brain, you're running into trouble with the blood-brain barrier, so normal blood tests aren't helpful. In order to measure the ... | [] | [] | [
[]
] | |
3kkok1 | how are regions able to become de facto independent? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3kkok1/eli5_how_are_regions_able_to_become_de_facto/ | {
"a_id": [
"cuy7gwb"
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"score": [
2
],
"text": [
"The central government does have the military power to suppress the independence movement in the region, or does not wish to use it because it would be too costly, inspire even more rebellion or do too much damage to its reputation on an internat... | [] | [] | [
[]
] | ||
43tshd | why is it harder to write with a color pencil as compared to a regular one? | If you've tried writing something with a color pencil, it just doesn't flow as well as a regular pencil, and also takes more effort to make a mark. Why is this so? And why does the lead also seem to break easier? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/43tshd/eli5_why_is_it_harder_to_write_with_a_color/ | {
"a_id": [
"czkwsbd"
],
"score": [
2
],
"text": [
"Graphite's ease to write with is directly caused by its molecular structure. It's got very weak bonds (compared to other carbon molecules like, say, diamond), allowing it to easily break from the rest of the lead and adhere to the paper. It is th... | [] | [] | [
[]
] | |
64ljzi | what was happening in america around the 15th century? | I'm young, English and ignorant and I have zero knowledge on this. Was much documented? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/64ljzi/eli5_what_was_happening_in_america_around_the/ | {
"a_id": [
"dg330ay",
"dg34dy2",
"dg34opt",
"dg3ad32"
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"score": [
12,
3,
4,
2
],
"text": [
"The first wave of colonization began and the natives got royally fucked. Diseases like Smallpox, Typhoid Fever, and Measles devastated the native population who had no natural imm... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Pre-Columbian_era"
],
[]
] | |
27w6sl | what does it mean when a neurotransmitter's "reuptake" is inhibited? | I searched and found [this thread](_URL_0_), but I still don't get it.
If, for example, a person's body has a natural lack of serotonin, why does its reuptake (absorption to the brain) need to be inhibited? Wouldn't the reuptake need to be increased, since there's so little, and the brain needs as much as possible?
I... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/27w6sl/eli5_what_does_it_mean_when_a_neurotransmitters/ | {
"a_id": [
"ci4yo7e",
"ci53eep",
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"score": [
2,
2,
3
],
"text": [
"Think of it like watering plants in a flowerpot. The plant's roots need water, but if you put a lot of water in the flowerpot, most of it doesn't go into the plants roots: it either flows out the hole ... | [] | [
"http://www.reddit.com/r/explainlikeimfive/comments/jtr4n/eli5_reuptake_inhibitorsantidepressants_and_how/"
] | [
[],
[],
[]
] | |
aqytc6 | how does autotune work and can i use it to make me sound really good? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aqytc6/eli5_how_does_autotune_work_and_can_i_use_it_to/ | {
"a_id": [
"egjif81"
],
"score": [
3
],
"text": [
"It changes the pitch of your voice to be in tune.\n\nYou can certainly use it to make you sound great, the pop industry uses it all the time. Often artists sound a lot worse out of the studio because they are not cleaned up be the producer.\n\nTh... | [] | [] | [
[]
] | |
7tj0bk | why do large crowds (e.g: restaurants, parties) suddenly go quite or decrease in overall volume? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7tj0bk/eli5_why_do_large_crowds_eg_restaurants_parties/ | {
"a_id": [
"dtcww32"
],
"score": [
12
],
"text": [
"Most of the time it is because someone made a grammatical or spelling error and everyone is too polite to comment on it."
]
} | [] | [] | [
[]
] | ||
8ovdyl | the social security and medicare problem | Today a report came out that Social Security and Medicare are running out of money? Can someone explain why/how/is this accurate? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8ovdyl/eli5_the_social_security_and_medicare_problem/ | {
"a_id": [
"e06ff79",
"e06foox",
"e06i22y"
],
"score": [
6,
3,
2
],
"text": [
"This one's ELI5 and very simple - they're paying out more in benefits than they're receiving in tax dollars. SS/Medicare are systems where the benefit isn't strictly defined (as in, there's no cap - liv... | [] | [] | [
[],
[],
[
"https://upload.wikimedia.org/wikipedia/commons/4/42/CBO_Infographic_2017.png"
]
] | |
3mkgj7 | what is this dark line in the sky? | [Seen over north central Indiana.](_URL_0_) I assume it's a shadow but what is causing it? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3mkgj7/eli5_what_is_this_dark_line_in_the_sky/ | {
"a_id": [
"cvfpvpc"
],
"score": [
2
],
"text": [
"It is the shadow of the contrail. The sun's light is being reflected off the dust in the air, so shadows are apparent.\n\nYou can see a slightly fainter shadow being cast by the other contrail to the left. \n\nEdit: These shadows are only apparen... | [] | [
"http://imgur.com/97o15HY"
] | [
[]
] | |
1hcjtn | the whole zimmerman-martin issue. | Also, try to tuck in how skittles are involved. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1hcjtn/eli5_the_whole_zimmermanmartin_issue/ | {
"a_id": [
"cb25nnu",
"cat0b2v",
"cat97s2"
],
"score": [
6,
3,
386
],
"text": [
"Throwaway here, as I am too busy right now to follow up on this right now but feel compelled to add good information to an important subject.\n\n[Here](_URL_0_) is a summary of the case - about 25 min... | [] | [] | [
[
"https://www.youtube.com/watch?v=bF-Ax5E8EJc"
],
[],
[]
] | |
ohcu1 | hard determinism and why one would disagree with it. | I can't quite wrap my head around the term. I know what determinism is- broadly. I'm trying to read the wiki on Hard Determinism, and one part says that it rejects the idea of free will. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/ohcu1/eli5_hard_determinism_and_why_one_would_disagree/ | {
"a_id": [
"c3h9r6w",
"c3hb8jy"
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"score": [
3,
4
],
"text": [
"Hard Determinism states that the future is immutable (pre-determined), either due to a strictly cause-to-effect model of physics or because of the will of some deity. It states further that peoples' decisions are part of the... | [] | [] | [
[],
[]
] | |
4iwucq | two objets at certanly distence. can we put them closer each other by the half distance indefinitely? . i mean the half of the distance, then the half of that distance ......thx | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4iwucq/eli5two_objets_at_certanly_distence_can_we_put/ | {
"a_id": [
"d31rgop"
],
"score": [
3
],
"text": [
"Theoretically, in abstract terms yes. There will mathematically always be another half distance you can divide by.\n\nBut real world physics don't permit for this. There is a phenomenon called the Planck Unit, which I suppose you could think of a... | [] | [] | [
[]
] | ||
6vm8md | what determines whether or not you break your neck in a hit/fall? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6vm8md/eli5_what_determines_whether_or_not_you_break/ | {
"a_id": [
"dm1ang7"
],
"score": [
2
],
"text": [
"The force of the impact, the angle of the impact, the strength of the muscles/bone/etc in the affected area, I'm sure there are more variables as well."
]
} | [] | [] | [
[]
] | ||
1l9waf | a tesseract is a 4 dimensional cube. how do we know this and what are the 4d analogues of other shapes? | Is there a way to figure out/calculate how any 3 dimensional shape will translate into 4 dimensions? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1l9waf/eli5_a_tesseract_is_a_4_dimensional_cube_how_do/ | {
"a_id": [
"cbx4rog",
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"cbx51nc",
"cbxd546",
"cbxefjg"
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"score": [
5,
10,
3,
5,
3
],
"text": [
"Yeah, we just use math. Think of how we define a square.\n\nA square with area 1 square meter (just for simplicity) is drawn by going 1 meter in one directio... | [] | [] | [
[],
[
"http://i.imgur.com/73wOo.gif"
],
[
"http://en.wikipedia.org/wiki/P-adic_number#Notation"
],
[],
[
"http://www.youtube.com/watch?v=yJZP_-40KVw"
]
] | |
32yiv2 | what is java and do i need it on my computer. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/32yiv2/eli5what_is_java_and_do_i_need_it_on_my_computer/ | {
"a_id": [
"cqftoge",
"cqftpgh"
],
"score": [
2,
2
],
"text": [
"Java is programming language that is nice because once you write code it can run on any machine!\nThis is possible because of Java virtual machine. It interprets code and runs it. Java virtual machine is what you have instal... | [] | [] | [
[],
[]
] | ||
99ej7u | how does the attorney client privilege work, or not in the case of cohen and trump | I am not from the US and know little about this concept other than I always understood that confidentiality between client and attorney was absolute. Even if attorney found out client had done something wrong.
How come Cohen seems to have so easily rolled over and is, apparently, willing to openly discuss his clients... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/99ej7u/eli5_how_does_the_attorney_client_privilege_work/ | {
"a_id": [
"e4mzfx8",
"e4mzsmz",
"e4n1hhf"
],
"score": [
21,
7,
3
],
"text": [
"Attorney-client privilege does NOT protect against:\n\n 1. Planning to commit a crime with the assistance of the attorney, \n\n2. Committing a crime with an attorney, or \n\n3. Discussing plans to com... | [] | [] | [
[],
[],
[]
] | |
5jr7vd | how are tariffs bad for the economy? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5jr7vd/eli5_how_are_tariffs_bad_for_the_economy/ | {
"a_id": [
"dbiartg",
"dbiatu5",
"dbibmei",
"dbidi4n"
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"score": [
4,
5,
2,
3
],
"text": [
"Tariffs make imported goods more expensive. That means that consumers have less money to spend after they buy these imports. Certainly they buy fewer imports, which is bad for yo... | [] | [] | [
[],
[],
[],
[]
] | ||
cs4ev1 | how does water boarding make you feel like drowning? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cs4ev1/eli5_how_does_water_boarding_make_you_feel_like/ | {
"a_id": [
"exch4lq",
"exdatja"
],
"score": [
6,
2
],
"text": [
" > make you feel like drowning?\n\nBy preventing you from taking breaths through the water blocking your mouth and nose.",
"If you put a towel over your head and breath, you suck in the air through the towel. \n\nHoweve... | [] | [] | [
[],
[]
] | ||
1zyl5k | if there's no air in space, how can a shuttle propulsate itself, against what ? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1zyl5k/eli5_if_theres_no_air_in_space_how_can_a_shuttle/ | {
"a_id": [
"cfy57nx",
"cfy5b02"
],
"score": [
2,
4
],
"text": [
"There is no requirement for anything for a rocket to 'push against' when in space. By ejecting combustion gases one way, the craft will automatically be propelled the other way due to the Newtons Third Law of Motion, which s... | [] | [] | [
[],
[]
] | ||
rnyed | the size of the universe and various space questions | I cannot seem to grasp the concept of how small we are. I just can't wrap my head around it. Any explanation that puts it into perspective would help.
Also, i have heard that the light we see from stars is years old, and that star may not even be there anymore, even if we can see its light. How long does it take for ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/rnyed/eli5_the_size_of_the_universe_and_various_space/ | {
"a_id": [
"c47afox",
"c47alqk",
"c47brmt"
],
"score": [
5,
6,
7
],
"text": [
"For size/scale of earth to the rest of the universe, this is my favourite comparison. Images say more than words etc\n\n_URL_0_\n\nThe length of time it takes for a stars light to reach earth depends on... | [] | [] | [
[
"http://1.bp.blogspot.com/_sG6Wrk144Qs/Ry67_o_qN2I/AAAAAAAAAS8/rqmwybiz1LY/s1600-h/EARTH+comparative+size.gif"
],
[],
[]
] | |
8557w2 | whats the rationale behind grocery stores using "sell by" instead of "best before" for expiry dates on food items? | I have noticed more and more food items being labeled as "Sell By" instead of "Best Before" or "Use By". Why are they doing it? If anything it is unclear to me if I should drink the remaining glass of milk or not as it does not give definitive expiry date. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8557w2/eli5whats_the_rationale_behind_grocery_stores/ | {
"a_id": [
"dvusk79",
"dvuspg4",
"dvut0gw"
],
"score": [
2,
3,
3
],
"text": [
"Most food stays good looooong after whatever date is printed on the package. With some exceptions. \n\nHowever I feel it’s due to 3 factors. \n\n1. Consumer demand. We’re (at least in the US) obsess... | [] | [] | [
[],
[],
[]
] | |
41fv94 | why does a phone message fail to send instead of just continuing to try? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/41fv94/eli5_why_does_a_phone_message_fail_to_send/ | {
"a_id": [
"cz20bvw",
"cz24lcy",
"cz2ni36"
],
"score": [
61,
3,
2
],
"text": [
"In general it's a bad idea to program a device to keep on trying to do something forever until it succeeds. That's how you get programs that lock up and just wait.\n\nIf the message doesn't send withi... | [] | [] | [
[],
[],
[]
] | ||
4h2jsu | why do some cars and trucks still have an almost vertical front face | Ever since I was a kid, there are always videos of a wind tunnel with a thin trail of smoke explaining the importance of aerodynamics. How come I see cars, vans and trucks that is meant for high speed, long haul travel but with an almost vertical front face. I would assume that the drag would be tremendous. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4h2jsu/eli5_why_do_some_cars_and_trucks_still_have_an/ | {
"a_id": [
"d2muoo3",
"d2mv6pu",
"d2mv971",
"d2mw5jj",
"d2my3qz"
],
"score": [
3,
3,
2,
3,
8
],
"text": [
"The more aerodynamic a vehicle is, the more expensive it is and the less space it has.\n\nFor a lot of vehicles- especially vehicles used for hauling- storage... | [] | [] | [
[],
[],
[],
[],
[]
] | |
3iu64v | boshin war | Just a quick explanation why it happened and the outcome. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3iu64v/eli5boshin_war/ | {
"a_id": [
"cujrkr8",
"cujsv3z"
],
"score": [
6,
3
],
"text": [
"If you're really interested, check out /r/AskHistorians. Here is a very quick and dirty answer until someone comes with a better one. Through the 19th century, the shoguns (military dictators who ruled with the consent of th... | [] | [] | [
[],
[]
] | |
2u2h57 | why does tomato ketchup taste nothing like tomatoes | I hate tomatoes, the taste, texture.. just nothing about tomatoes seems nice to me. But I love ketchup, I love tomato puree, and I love tomato based curries. On the other hand, my fiance loves tomatoes, but hates ketchup, puree and curries.
Why is there such a big difference in taste to the point where I personally d... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2u2h57/eli5why_does_tomato_ketchup_taste_nothing_like/ | {
"a_id": [
"co4iku1",
"co4jgx8"
],
"score": [
7,
2
],
"text": [
"Ketchup contains a lot of sugar and vinegar, both of which will mask the flavor of a tomato, not to mention also mask the flavor of the food you use it on. There's usually plenty of sodium in ketchup as well, which will over... | [] | [] | [
[],
[]
] | |
5lpxpq | why has no law been created to enforce news/media outlets to fact-check their news before release? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5lpxpq/eli5_why_has_no_law_been_created_to_enforce/ | {
"a_id": [
"dbxksnd",
"dbxkzi0",
"dbxl4ba",
"dbxmjpl"
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"score": [
3,
2,
5,
2
],
"text": [
"It's all protected by the first amendment. \n\nThey can and will say whatever they want as long as the company continues to make money. ",
"The real issue is: how can you deter... | [] | [] | [
[],
[],
[],
[]
] | ||
67sp8q | nasa's cassini spacecraft | NASA's Cassini spacecraft has begun an unprecedented series of space dives that will see it plunge through the icy rings of Saturn, in the final phase of its 20-year mission,My question is,,Why are these probes being destroyed,instead of being flicked off into deep space ? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/67sp8q/eli5_nasas_cassini_spacecraft/ | {
"a_id": [
"dgsyjw7"
],
"score": [
2
],
"text": [
"Cassini doesn't have nearly enough propellant to leave Saturn's orbit, let alone the escape the Sun's gravity. Eventually Cassini will shut down from power loss or failure, and it will just be debris in orbit around Saturn. Because of the possibi... | [] | [] | [
[]
] | |
zqim7 | please explain the difference between 3 phase and single phase power. why does a 3 phase table saw cut "smoother"? | I understand the basic principle. A single sinewave verses three. What I can't comprehend is even with a single sinewave alternating at 60 hz (?) it's not like I can feel the saw blade alternate or anything. It's obviously happening very quickly. Why 3 phase feel like it doesn't bog down? And why 3 phase? Why not 2 or ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/zqim7/please_explain_the_difference_between_3_phase_and/ | {
"a_id": [
"c66uzc2",
"c66v25t"
],
"score": [
3,
9
],
"text": [
"Well, without going into much detail, the 3 phases together peak more often than single phase, delivering a more consistent flow of power. \n\nYou cannot feel the oscillation but the motor does suffer slightly during transit... | [] | [] | [
[],
[]
] | |
1lq4w5 | how do the separate languages of cantonese and mandarin share a common writing? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1lq4w5/how_do_the_separate_languages_of_cantonese_and/ | {
"a_id": [
"cc1neav"
],
"score": [
7
],
"text": [
"To put it very simply, it's because Chinese hanzi characters do not indicate a certain pronunciation, but a specific meaning. For example, a character means \"dog,\" but does not tell you how to pronounce it. So, \"dog\" has a different spoken wo... | [] | [] | [
[]
] | ||
2c4f8y | when and how did cats become such good manipulators of humans? | I need to know ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2c4f8y/eli5_when_and_how_did_cats_become_such_good/ | {
"a_id": [
"cjbuqmx"
],
"score": [
2
],
"text": [
"It's because of the mind altering parasite [toxoplasma gondii](_URL_0_) endemic to cats."
]
} | [] | [] | [
[
"http://www.scientificamerican.com/article/fatal-attraction/"
]
] | |
2k2k3k | why was the wii "hacked"/modded/softmodded while the other consoles of it's generations weren't? | It seems so easy and simple to mod the wii to play pirated games/roms/ other unintended purposes. The PS3 and 360 are still not able to do this. As far as I know other previous consoles weren't able to do this.
Why and how did this happen? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2k2k3k/eli5_why_was_the_wii_hackedmoddedsoftmodded_while/ | {
"a_id": [
"clhbmxe"
],
"score": [
2
],
"text": [
"There was an exploit discovered early in the Wii's life cycle that made modding it very easy. It involved glitching a Twilight Princess save."
]
} | [] | [] | [
[]
] | |
22za3n | if marijuana isn't addictive, and it has no long term effects on the brain, why do people i know who smoke regularly act different and seem to need to smoke it daily? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/22za3n/eli5_if_marijuana_isnt_addictive_and_it_has_no/ | {
"a_id": [
"cgruoh7",
"cgruq5v"
],
"score": [
6,
3
],
"text": [
"It isn't chemically addictive. However, anything can become psychologically addictive.",
"Because neither of those claims are true.\n\nIt is not physically addictive like cigarettes or heroine. But it can be mentally add... | [] | [] | [
[],
[]
] | ||
45ccqn | why red-hot iron/steel lose its magnetism | I've seen tons of blacksmithing videos, also done some myself, and when the template comes one of the ways to check the temperature is with a magnet. When no longer sticks to the metal is quenching time. So, why's that? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/45ccqn/eli5_why_redhot_ironsteel_lose_its_magnetism/ | {
"a_id": [
"czws6ha",
"czwyc2f"
],
"score": [
7,
2
],
"text": [
"Magnetism happens because all the atoms are lined up the same way. When metal gets near melting, the atoms start moving around randomly, which messes up that effect.\n\nMore details in [this more advanced discussion.](_URL_0... | [] | [] | [
[
"https://www.reddit.com/r/askscience/comments/14ypgx/is_molten_iron_still_attracted_to_a_magnet/"
],
[]
] | |
32pga0 | how did std's begin? | How did they very first originate? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/32pga0/eli5_how_did_stds_begin/ | {
"a_id": [
"cqdd554",
"cqddohh",
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"cqdp9bq",
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"cqdq50j",
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"cqdrbx6",
"cqdrkjc",
"cqds14v",
"cqdwpo5",
"cqdxlcs",
"cqdy6pq",
"cqe0hcy",
"c... | [] | [] | [
[],
[],
[],
[],
[
"http://www.radiolab.org/story/patient-zero-updated/"
],
[],
[],
[],
[],
[],
[
"https://www.youtube.com/watch?v=Ub3_K-mhQGg&t=16m30s"
],
[
"https://www.youtube.com/watch?v=enlWZKRsV7A"
],
[],
[],
[],
[],
[],
[],
[],
[
"http://www.radi... | |
5d33y0 | how can you tell who will be effected by the side effects of medicine? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5d33y0/eli5_how_can_you_tell_who_will_be_effected_by_the/ | {
"a_id": [
"da1d3fp",
"da1l39z"
],
"score": [
4,
2
],
"text": [
"You can't. Sometimes certain side effects are felt more in certain groups, which is why doctors might not recommend a drug for certain people, but mainly it is a crap-shoot.\n\nThrough clinical trials, you might, for exampl... | [] | [] | [
[],
[]
] | ||
1v9u6p | how do international differences in law affect members of the iss? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1v9u6p/eli5_how_do_international_differences_in_law/ | {
"a_id": [
"ceq40rm"
],
"score": [
5
],
"text": [
"Space Law! I just love the way that sounds. Here is some more info specifically for the ISS.\n\n1998 ISS agreement\n\nIn addition to the international treaties that have been negotiated at the United Nations, the nations participating in the Inte... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Space_law"
]
] | ||
1v8w63 | do people in colorado still have to take drug tests for employment? and if so, how is colorado working around marijuana legalization? | Do people in Colorado still have to take drug tests for employment? And if so, how is Colorado working around marijuana legalization? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1v8w63/eli5_do_people_in_colorado_still_have_to_take/ | {
"a_id": [
"cepuoip"
],
"score": [
3
],
"text": [
"The law is very clear that the legalization of marijuana has absolutely no impact on how employers drug test or punish their employees.\n\nThere's no legislation to work around -- if you do something your employer says you can't, you're SOL"
]
... | [] | [] | [
[]
] | |
3d4qb3 | if money is not backed by gold, why does printing more money drop the value of the dollar? | It would make sense to me if the money was representing something. But if it's not backed by gold, what exactly does money represent and why does printing more drop its value? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3d4qb3/eli5_if_money_is_not_backed_by_gold_why_does/ | {
"a_id": [
"ct1qi24",
"ct1qjk4"
],
"score": [
5,
2
],
"text": [
"First rule of economics whenever there is more of something it is worth less.\nImagine there millions of autographed Babe Ruth baseballs, they wouldn't be worth much. Since there are so few, they are worth hundreds of thousa... | [] | [] | [
[],
[]
] | |
2eo6y5 | why are the medical and dental communities kept so separate? shouldn't dental be part of general well-being? | The insurance world keeps medical and dental separate (and why is vision another separate entity?) Also, podiatrists and obstetricians tend to define themselves as a doctor while dentists, despite being Doctors of Dental Science tend to refer to themselves as dentists. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2eo6y5/eli5_why_are_the_medical_and_dental_communities/ | {
"a_id": [
"ckc44b6",
"ck1c4er",
"ck1c5xp",
"ck1cfsg"
],
"score": [
2,
2,
2,
5
],
"text": [
"I asked once why dental stuff costs so much and I got the \"We have to pay back school loans and we're so specialized and people NEED us, so you have to pay us big time.\"\n\nTell ... | [] | [] | [
[],
[],
[],
[
"http://www.reddit.com/r/explainlikeimfive/comments/1r1auz/eli5_why_are_dentists_optometrists_etc_not_part/"
]
] | |
6yapnd | - before taxi meters, how did they accurately calculate the fare for a journey? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6yapnd/eli5_before_taxi_meters_how_did_they_accurately/ | {
"a_id": [
"dmlvuob",
"dmlw4yq"
],
"score": [
2,
2
],
"text": [
"a simple device measured the number of turns of a cart/wagons wheel which when multiplied by the circumference would yield distance traveled. \n\nAlternatively the driver would look at the map and measure the distance to the... | [] | [] | [
[],
[]
] | ||
190f6k | what's the evolutionary sense in making the clitoris outside the vagina, since most women orgasm by clitoral stimulation? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/190f6k/whats_the_evolutionary_sense_in_making_the/ | {
"a_id": [
"c8jmtpb",
"c8jnbr2",
"c8jovlf",
"c8jpamm",
"c8jpet7",
"c8jppg2",
"c8jppto",
"c8jps0t",
"c8jpv0f",
"c8jqom9",
"c8jqp6w",
"c8jr4l0",
"c8jr7t9",
"c8jrdbr",
"c8jred2",
"c8jrjvi",
"c8jrs02",
"c8jrvxl",
"c8js8t4",
"c8jsh00",
"c... | [] | [] | [
[],
[],
[
"http://www.youtube.com/watch?v=IXLFPLqqf5E"
],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[]
] | ||
a33h0g | how can photons infinitely move forward if perpetual motion is considered impossible? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a33h0g/eli5_how_can_photons_infinitely_move_forward_if/ | {
"a_id": [
"eb31sc3",
"eb32bzp",
"eb331wj"
],
"score": [
2,
8,
3
],
"text": [
"Perpetual motion is not possible.\n\nA perpetual motion *machine* is not possible. This is a key difference.\n\nThere is no law stating that a system cannot move for infinity. But there is no way to *ex... | [] | [] | [
[],
[],
[]
] | ||
62y1aq | why do we sneeze when its cold? | Today's really cold where I live and my friend began to sneeze and I thought to myself why do we sneeze when it's cold? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/62y1aq/eli5_why_do_we_sneeze_when_its_cold/ | {
"a_id": [
"dfpxrw5"
],
"score": [
6
],
"text": [
"Sneezing is caused by an irritation in the nasal mucous membrane. When it's cold outside, that membrane dries out, which makes it irritated, which makes you sneeze."
]
} | [] | [] | [
[]
] | |
2slryi | why don't people make a wig out of their own hair before they start chemotherapy? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2slryi/eli5_why_dont_people_make_a_wig_out_of_their_own/ | {
"a_id": [
"cnqo9m1",
"cnqo9z1",
"cnqobq7",
"cnqvqw4"
],
"score": [
3,
2,
6,
2
],
"text": [
"Well, for starters, you need at least about a foot of hair to make a wig. If your hair isn't long enough, no go. ",
"Hair needs to be a certain length for hygiene/aesthetic pur... | [] | [] | [
[],
[],
[],
[]
] | ||
3j3r93 | why can't we eat raw meat in fear of getting sick but can order a steak rare? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3j3r93/eli5_why_cant_we_eat_raw_meat_in_fear_of_getting/ | {
"a_id": [
"culzfqo",
"culzgm4",
"culzgu2"
],
"score": [
2,
9,
19
],
"text": [
"Your premise is false. People eat raw meat all the time. Beef tartare and beef carpaccio are both made out of cut-up raw beef. (I've eaten them a number of times and never gotten sick.) Inuit people ea... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Pittsburgh_rare"
]
] | ||
776z9f | why does the typical college education take 4 years? why not 2 or 3 years for example? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/776z9f/eli5_why_does_the_typical_college_education_take/ | {
"a_id": [
"dojhec4"
],
"score": [
2
],
"text": [
"Come study in England. A batchelor's degree only takes three years. Unlike in the US, though, you'll need to choose what you're going to study right from the start of the course and focus on that. Specialization in education starts much earlie... | [] | [] | [
[]
] | ||
7qjrng | how does non-scratch glass work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7qjrng/eli5_how_does_nonscratch_glass_work/ | {
"a_id": [
"dspo6zl",
"dsppi9w",
"dsprqyc"
],
"score": [
5,
3,
3
],
"text": [
"Alot of your non scratch glass undergoes a special treatment in which smaller sodium ions are replaced by bigger potassium ions. This an ion exchange reaction at very high temperatures. \n\nWhen you thi... | [] | [] | [
[],
[],
[]
] | ||
61p0m3 | how did cops determine speed before the radar gun? | I got pulled over a few days ago, and I was wondering how cops determined speed before the radar gun was invented. Thanks in advance for an explanation. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/61p0m3/eli5how_did_cops_determine_speed_before_the_radar/ | {
"a_id": [
"dfg5wfm",
"dfg62bh",
"dfg62jl",
"dfgijb7"
],
"score": [
18,
5,
19,
3
],
"text": [
" > Speed limits were originally enforced by manually timing or \"clocking\" vehicles travelling through \"speed traps\" defined between two fixed landmarks along a roadway that ... | [] | [] | [
[],
[
"https://en.m.wikipedia.org/wiki/VASCAR"
],
[],
[]
] | |
c89wdr | after seeing a little spider dance to itself in the mirror, it made me wonder; are humans the only animals who are able to recognize that it is themselves in the reflection? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c89wdr/eli5_after_seeing_a_little_spider_dance_to_itself/ | {
"a_id": [
"esl33k9",
"esl3jwa",
"esl8yd3",
"eslaail",
"esljbj0",
"esllwp8",
"eslpv0f",
"eslq7k7",
"eslrwqq",
"esls5rt"
],
"score": [
247,
38,
2,
263,
137,
8,
3,
15,
2,
2
],
"text": [
"No, but not many can. As far as I know, ... | [] | [] | [
[],
[
"https://youtu.be/-EjukzL-bJc",
"https://youtu.be/6M92OA-_5-Y",
"https://youtu.be/HRVGA9zxXzk"
],
[],
[],
[
"https://pdfs.semanticscholar.org/6025/a64f817d6ef770e88449d9c0dea1a7a1c952.pdf"
],
[],
[
"https://en.m.wikipedia.org/wiki/Mirror_test"
],
[
"https://en.wikip... | ||
1j4w8e | the relationship between hong kong and china. | I understand that Hong Kong was a British territory until the 1990s, but I don't understand the exact level of autonomy of Hong Kong. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1j4w8e/eli5_the_relationship_between_hong_kong_and_china/ | {
"a_id": [
"cbb4bg4"
],
"score": [
9
],
"text": [
"Hong Kong is a part of China that has special privileges, because it used to be a British colony. When the British handed it back to China in 1997, they negotiated as part of the handover that China would allow Hong Kong to keep its various free... | [] | [] | [
[]
] | |
9hxzra | why does having a node/nodule on your vocal cord mess up your voice? | And can permanently damage your ability to sing ever again. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9hxzra/eli5why_does_having_a_nodenodule_on_your_vocal/ | {
"a_id": [
"e6fdana"
],
"score": [
4
],
"text": [
"Nodules are masses along your vocal cords that interfere with the vibration. Think of a guitar string with a piece of chewing gum stuck to it. "
]
} | [] | [] | [
[]
] | |
7hopmr | why is entropy energy per temperature? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7hopmr/eli5_why_is_entropy_energy_per_temperature/ | {
"a_id": [
"dqt7gck"
],
"score": [
2
],
"text": [
"Entropy is not \"energy per temperature\", it just has units of [energy]/[temperature]. And that's really just a convention. Some people prefer to think of entropy as being dimensionless. The dimensionful entropy (S) and the dimensionless entropy... | [] | [] | [
[]
] | ||
1snluf | what is happening when you're in a constricted space and you're still breathing in but you know you need fresh air? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1snluf/eli5_what_is_happening_when_youre_in_a/ | {
"a_id": [
"cdzcqdv"
],
"score": [
2
],
"text": [
"I'm no scientist, so I could be wrong, but I'll take my best educated guess.\n\nI would bet it's your body detecting increasing levels of carbon dioxide in your blood as the oxygen in the room starts to deplete, causing a slight panic reaction. ... | [] | [] | [
[]
] | ||
u6orb | why sunburnt skin is red. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/u6orb/eli5_why_sunburnt_skin_is_red/ | {
"a_id": [
"c4srt76",
"c4ssikb",
"c4sthw3"
],
"score": [
7,
18,
16
],
"text": [
"The red color comes from extra blood in that burnt part.\n\nSunburn occurs when UV light damages DNA in the skin cells. Damaged DNA in the skin is what causes skin cancer. When the body realizes tha... | [] | [] | [
[],
[],
[
"http://wiki.answers.com/Q/Why_do_sunburns_turn_your_skin_red"
]
] | ||
5sb0cq | how are they able to leave a supreme court seat vacant for so long? | Aren't there still cases being heard by the Supreme Court (I heard on the news today that the travel ban might go to the Supreme Court.) Isn't it unfair to have an even number of justices since a lot of times the one swing vote decides the decision? How can they leave the seat vacant for a year without any repercussion... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5sb0cq/eli5_how_are_they_able_to_leave_a_supreme_court/ | {
"a_id": [
"dddnlvh",
"dddoh0j"
],
"score": [
7,
2
],
"text": [
"There's no law or anything in the Constitution that mandates when a vacant seat must be filled by.\n\nThis isn't to say that the delays are right or wrong, only to say that they are legal. ",
"When there is a vacancy on... | [] | [] | [
[],
[]
] | |
1utdq3 | why are asians, on average, shorter than other people? | Please read :
_URL_0_
What is the evolutionary benefit for being shorter?
(yes, i realize that there are tall Asians like Jeremy Lin and Yao Ming. please do not discuss genetic outliers) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1utdq3/eli5_why_are_asians_on_average_shorter_than_other/ | {
"a_id": [
"celhafw",
"celivbx",
"celjz1d",
"celk60x"
],
"score": [
27,
20,
31,
8
],
"text": [
"The reason Europeans are taller is due to a mutant gene that makes them lactose *tolerant*, which means more calcium in their diets for strong (and longer) bones. Ninety percent... | [] | [
"http://en.wikipedia.org/wiki/Human_height#Average_height_around_the_world"
] | [
[
"http://en.wikipedia.org/wiki/Lactose-intolerance",
"http://1.bp.blogspot.com/-XN02ANxVo_4/UGofT79CYSI/AAAAAAAABmg/krMPOFvV4XA/s1600/koreans.jpg",
"http://www.niams.nih.gov/Health_Info/Bone/Osteoporosis/Background/asian_american_women.asp"
],
[],
[],
[]
] | |
2gj6i2 | if cancer is mutation, and mutation is always occurring as part of evolution, why do we try to "cure" cancer? | Seems like we're attempting to stop the body from doing what the body will always naturally do, so it is therefore impossible and therefore a waste of money. Don't mistake treatment and removal, but a "cure" seems impossible. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2gj6i2/eli5_if_cancer_is_mutation_and_mutation_is_always/ | {
"a_id": [
"ckjmm1o",
"ckjms3l"
],
"score": [
6,
4
],
"text": [
"That's a different kind of mutation. The mutations that cause evolution are variations from one generation to another than get passed on. Cancer isn't a genetic mutation, but a degeneration that occurs during our lives. \n\n... | [] | [] | [
[],
[]
] | |
34c3a7 | what caused the u.s. to become a "less friendly" place for children over the change of the century? | When I listen to stories from my parents and grandparents about when they were kids, the world seemed to be a much more friendly and open place for children. They would be able to run around their neighborhood all day doing whatever they please and their parents would be largely unconcerned.
However, parents these da... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/34c3a7/eli5_what_caused_the_us_to_become_a_less_friendly/ | {
"a_id": [
"cqt8qts",
"cqt8uvw",
"cqta0pb",
"cqta57i",
"cqtbldo",
"cqtf7pa"
],
"score": [
27,
28,
3,
5,
3,
2
],
"text": [
"The media, mostly. In the past, you would only hear about local bad things happening. Nowadays, we constantly hear about bad things th... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
1szyvd | why are there strange letters that are used for pronunciation when looking in a dictionary, or on google? | ju;wɒt meɪt? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1szyvd/eli5_why_are_there_strange_letters_that_are_used/ | {
"a_id": [
"ce2xuix"
],
"score": [
2
],
"text": [
"Its for pronounciation of words. You can look up what each character means under _URL_0_\n\nIts meant for people who aren't sure how to speak the word."
]
} | [] | [] | [
[
"https://en.wikipedia.org/wiki/International_Phonetic_Alphabet"
]
] | |
uf2b0 | motion blur | What is it and why does it happen? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/uf2b0/eli5_motion_blur/ | {
"a_id": [
"c4uuq6c",
"c4uutna"
],
"score": [
3,
2
],
"text": [
"Think video cameras. Think of a video camera with a low frames per second rate. It does well to capture slow paced movement, but once an object moves fast enough, it will lag across the screen, disappearing and reappearing i... | [] | [] | [
[
"http://www.youtube.com/watch?feature=player_detailpage&v=buSaywCF6E8#t=197s"
],
[]
] | |
co1pfn | - where is outer space? or is space space? if you left our galaxy and headed towards another galaxy what would the space between the two be called? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/co1pfn/eli5_where_is_outer_space_or_is_space_space_if/ | {
"a_id": [
"ewf81uj",
"ewfa8wq"
],
"score": [
2,
10
],
"text": [
"Interstellar space is defined by that region of space in which the energy flux is not dominated by a single source star.",
"Outer space is what we usually just call space. It is everything above an altitude of 100km abo... | [] | [] | [
[],
[]
] | ||
ot79j | what makes you a compatible bone marrow donor? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/ot79j/what_makes_you_a_compatible_bone_marrow_donor/ | {
"a_id": [
"c3jvacj",
"c3jvh0f"
],
"score": [
5,
22
],
"text": [
"Everyone's bodies make cells and tissues in a slightly different way. This leaves little protein tags on the surface of cells.\n\nIf your immune system sees tags that aren't yours, it's like finding a stray footprint in you... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Hematopoietic_stem_cell_transplantation#Graft-versus-host_disease"
],
[]
] | ||
bpq6m4 | how mitochondria has stayed in our cells even after millions of years of reproduction? | [ The endosymbiotic hypothesis suggests that mitochondria were originally prokaryotic cells, capable of implementing oxidative mechanisms that were not possible for eukaryotic cells; they became endosymbionts living inside the eukaryote](_URL_0_) (Wikipedia).
What I don't understand is how this relationship has contin... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bpq6m4/eli5_how_mitochondria_has_stayed_in_our_cells/ | {
"a_id": [
"enwnce1",
"enwz3ug",
"enx2ye8"
],
"score": [
6,
5,
3
],
"text": [
"There is a lot of integration between mitochondria and cell, but as far as I know part of genes involved in oxidative phosphorylation are now located in the main nucleus, while some other genes are loca... | [] | [
"https://en.wikipedia.org/wiki/Mitochondrion#Origin_and_evolution"
] | [
[],
[],
[]
] | |
6qsph7 | why are energy drinks always in cans and not transparent bottles? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6qsph7/eli5_why_are_energy_drinks_always_in_cans_and_not/ | {
"a_id": [
"dkzqqus"
],
"score": [
3
],
"text": [
"Im sure this violates the sub's ediquette but here ya go OP. , [energy drinks in a clear \"can\"](_URL_0_)"
]
} | [] | [] | [
[
"http://www.cstoreproductsonline.com/sites/default/files/styles/enhanced_slideshow/public/monster-1-810.jpg?itok=-QRRHdpi"
]
] |
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