q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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3o804s | 2 part question here: First, how does a black hole become charged? And second, why do some rotate but others do not? | Basically, I just want to know what the mechanism behind "charging" a BH is, because I thought that all matter was ripped apart to the quark level or whatever. How does is gain a charge? And what causes some to rotate but not all of them? | askscience | https://www.reddit.com/r/askscience/comments/3o804s/2_part_question_here_first_how_does_a_black_hole/ | {
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"Just toss electrically charged matter into it so that it gains a net charge. If you initially have an electrically neutral black hole, perhaps made by the gravitational collapse of an equal number of protons and electrons, t... | [] | [] | [
[],
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"http://arxiv.org/abs/astro-ph/0606076"
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1sfxoe | how do cities that offer free wi-fi not run the internet providers out of business? and if they do, how do they get away with it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1sfxoe/eli5_how_do_cities_that_offer_free_wifi_not_run/ | {
"a_id": [
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"text": [
"Free wifi is generally fast enough to do email and shop online, but not good enough to stream movies, play games, or download large files in a timely manner. Many people are willing to pay extra for better speeds. "
]
} | [] | [] | [
[]
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6iwhkw | why british sports such as cricket and rugby were embraced by india, australia, new zealand and south africa etc but not usa or canada? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6iwhkw/eli5_why_british_sports_such_as_cricket_and_rugby/ | {
"a_id": [
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"text": [
"Cricket was actually quite popular in the early days of the United States. During the industrial revolution baseball became more popular because working-class people could play it. Cricket requires a carefully manicured and watered lawn, but bas... | [] | [] | [
[]
] | ||
1lzfwm | the collapse of the auto industry in detroit. | From my knowledge GM is one of the main auto industries that is from Detroit. If GM is still alive, how come Detroit is in such a bad state due to the auto industry? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1lzfwm/eli5_the_collapse_of_the_auto_industry_in_detroit/ | {
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"The vast majority of the people in Detroit involved in the auto industry were not the fatcat executives of GM, Ford, etc., they were people working in the factories. It used to be that a person could comfortably support their family on an assembl... | [] | [] | [
[]
] | |
dj9y8w | Why don't objects appear significantly brighter they closer they are? | Light reflecting off a say a car scatters in all directions. It seems to me that the car would get "brighter" at a cubic rate, with more rays of light entering your eye the closer you get. Cars that are close seem just as bright to me no matter how far. Perhaps it's not directly cubic as the object is also appearing... | askscience | https://www.reddit.com/r/askscience/comments/dj9y8w/why_dont_objects_appear_significantly_brighter/ | {
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"This is close, only it's an (inverse) square law rather than cubic. To understand why this is, it might be helpful to think of a star (though the same result will apply to, say, a... | [] | [] | [
[
"https://photography.tutsplus.com/articles/rules-for-perfect-lighting-understanding-the-inverse-square-law--photo-3483"
],
[],
[
"https://en.wikipedia.org/wiki/Daylight"
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6243rf | why do slow-motion videos flicker light and dark? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6243rf/eli5_why_do_slowmotion_videos_flicker_light_and/ | {
"a_id": [
"dfjl2sm"
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"text": [
"Video guy here! Most lights illuminate things by pulsating light. It's not constantly on. It just happens so quickly that you can't see it with your eyes. \n\nBut when you shoot it in slow mo you can see that flicker/pulse. "
]
} | [] | [] | [
[]
] | ||
11dmbr | why isn't there a uniform shape for electrical outlets around the world? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/11dmbr/why_isnt_there_a_uniform_shape_for_electrical/ | {
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"text": [
"Because there wasn't one single company producing electrical components for all countries at the various times that these countries were producing their infrastructure.",
"Because the voltages and ... | [] | [] | [
[],
[],
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] | ||
bygtbl | what is the underlying physiology of butterflies? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bygtbl/eli5_what_is_the_underlying_physiology_of/ | {
"a_id": [
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"text": [
"Interestingly but perhaps not surprisingly, the DNA of a caterpillar is identical to the DNA of its corresponding butterfly. The caterpillar contains all of what will become the butterfly, yet the caterpillar breaks down into a caterpillar soup w... | [] | [] | [
[
"https://www.scientificamerican.com/article/caterpillar-butterfly-metamorphosis-explainer/"
]
] | |
74j6b4 | The origins of Pumpkin / turnip carving. | A quick google tells me that before pumpkins, turnips (and other beets) were (apparently) carved in Ireland (mostly) but also parts of England, for Halloween / All Hallows eve / Samhain celebrations. What I can't find is reliable information on how, or where, or when, this practice originated.
So thats my question: Wh... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/74j6b4/the_origins_of_pumpkin_turnip_carving/ | {
"a_id": [
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"text": [
"Simpson, Jacqueline and Steve Roud, A Dictionary of English Folklore (Oxford: Oxford University Press, 2000) is always a good source for this sort of thing. 'Jack o' Lantern (aka Jack-a-Lantern) is the name of a supernatural being 'mainly in East... | [] | [] | [
[
"http://www.history.com/topics/halloween/jack-olantern-history",
"https://en.wikipedia.org/wiki/Jack-o%27-lantern"
]
] | |
7201h0 | tunnel ventilation | Why do transit tunnels require ventilation? In my case I'm thinking about the Seattle tunnels which contain busses and light rail. It seems to me that the action of the vehicles moving through the space would force enough air to be pushed ahead of them to forcibly ventilate the tunnel without need for mechanical fan sy... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7201h0/eli5_tunnel_ventilation/ | {
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"text": [
"Even if the you do it that in normal case when traffic is flowing what would happen if there was a fire?\n\nSmoke from a vehicle fire in a tunnel will in a short time kill people that are evacuating by foot like passengers and vehicles behind it ... | [] | [] | [
[]
] | |
v7eaf | whats the main difference between the sunni and s'hia islam | I know its something to do with a dispute after Muhammed's death. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/v7eaf/eli5_whats_the_main_difference_between_the_sunni/ | {
"a_id": [
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"text": [
"It was all about who would succeed after the Prophet(pbuh) passed away. One group or the majority decided upon Hazrat Abu Bakr to be the first caliph, wheras another group said it should have been Hazrat Ali(the Prophets(pbuh) nephew) and they s... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Succession_to_Muhammad"
]
] | |
2okb2w | how does holy communion work? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2okb2w/eli5_how_does_holy_communion_work/ | {
"a_id": [
"cmnx6b8",
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"text": [
"I was raised Catholic. Catholics believe the bread and wine literally become the flesh and blood of Jesus. It's not, as /u/Morgz_, that it always was. Part of the mass ceremony involved the priest consecrating the bread a... | [] | [] | [
[],
[]
] | ||
4n7b1p | Why were the Western Allies so willing to let the USSR dominate eastern Europe, immediately after going to war with Nazi Germany for the very same thing? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4n7b1p/why_were_the_western_allies_so_willing_to_let_the/ | {
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"text": [
"There was no willingness about it. The Red Army had something like 11 million men under arms in 1945. Meanwhile, America was already in the process of beginning demobilization later that year. While America had more men over... | [] | [] | [
[],
[]
] | |
2xtxoj | If its impossible to travel faster than the speed of light, would you not be able to walk from the back to the front of a vessel that is moving at light speed? | askscience | http://www.reddit.com/r/askscience/comments/2xtxoj/if_its_impossible_to_travel_faster_than_the_speed/ | {
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"text": [
"1. It is impossible to travel at the speed of light. It would take an infinite amount of energy to accelerate an object with mass to the speed of light: you can only get incrementally closer to the speed of light as you acc... | [] | [] | [
[
"https://www.youtube.com/watch?v=kGsbBw1I0Rg",
"http://hyperphysics.phy-astr.gsu.edu/hbase/relativ/einvel2.html#c1",
"https://www.youtube.com/watch?v=Cxqjyl74iu4",
"https://www.youtube.com/watch?v=vVKFBaaL4uM",
"https://www.youtube.com/watch?v=jlJNsRZ4WxI"
],
[]
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2yaddm | why does java seem to have a reputation for exploits? is there something inherently wrong with how java works? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2yaddm/eli5_why_does_java_seem_to_have_a_reputation_for/ | {
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"It runs on your computer.\n\nWhich is bad just like everything that runs on your computer. Java allows web servers to run programs on your computer and this is a big problem if you want to make somethi... | [] | [] | [
[],
[],
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20urlf | Can animals sense an electromagnetic pulse (EMP)? | askscience | http://www.reddit.com/r/askscience/comments/20urlf/can_animals_sense_an_electromagnetic_pulse_emp/ | {
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"Many animals can [sense magnetic fields](_URL_1_). You can't, but a homing pigeon can.\n\nPigeons can even [sense solar storms](_URL_2_).\n\nAlong with a burst of broad-spectrum electromagnetic noise, a high-altitude nuclear detonation will make ... | [] | [] | [
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"http://en.wikipedia.org/wiki/Starfish_Prime",
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"http://solar-center.stanford.edu/solar-weather/pigeons.html",
"http://www.todaysengineer.org/2007/Sep/HEMP.asp"
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2a10qr | why do we make more mistakes when we're stressed than when relaxed? | For example: when I'm late for work in the morning I've spilled more things, burned myself, etc. Countless more times than when I wake up on time. Normally if I'm in a rush it takes longer for me get out of the house.
I'm assuming adrenaline has some role in this but I'm not sure what roll | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2a10qr/eli5_why_do_we_make_more_mistakes_when_were/ | {
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"Because you're rushing and not concentrated at the task at hand. ",
"At least partially because stress puts you into fight or flight, which increases bloodflow to the hindbrain and decreases it to t... | [] | [] | [
[],
[],
[]
] | |
84ptay | what is a "monopolistic competition" and how does it work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/84ptay/eli5what_is_a_monopolistic_competition_and_how/ | {
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"text": [
"Monopolistic competition is a form of imperfect competition.\n\nI'm assuming you know what perfect competition is. Well, monopolistic is when the products different companies make aren't identical enough to be perfect substitutes. Hence, they are... | [] | [] | [
[]
] | ||
32n5ny | why is mad cow diseases regularly related to cannibalism, despite theories that it was transmitted from sheep, to cows, to humans? | I am aware of similar diseases like Kuru (from human cannibalism), but once again is that not just from eating tainted meat, rather than an effect from cannibalism? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/32n5ny/eli5_why_is_mad_cow_diseases_regularly_related_to/ | {
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"score": [
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"text": [
"Mad cow disease and Kuru are prion diseases. These are not well understood, but what is known is that they are highly \"contagious\" in the sense that if a mutated prion (which is glycoprotein normally ... | [] | [] | [
[],
[],
[]
] | |
7qm37r | Who was the "mascot" for genius before Einstein? | What I mean is that in modern times, the name "Einstein" is synonymous with genius, but did such a reputation exist with a scientist before him? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7qm37r/who_was_the_mascot_for_genius_before_einstein/ | {
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"We ask that answers in this subreddit be [in-depth and comprehensive](_URL_1_), and highly suggest that comments include citations for the information. In the future, please take the time to better familiarize yourself wit... | [] | [] | [
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"https://www.reddit.com/r/AskHistorians/comments/4kngwh/rules_roundtable_no_11_no_speculation/"
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"https://www.... | |
1th3t2 | if fires breathe oxygen, and we breathe out carbon dioxide, then why does a fire flare up when i breathe on it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1th3t2/eli5_if_fires_breathe_oxygen_and_we_breathe_out/ | {
"a_id": [
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"text": [
"Because the air you exhale has oxygen in it too. We inhale 20% oxygen and exhale 14-16% oxygen. This is why you can give someone oxygen during CPR, using your own exhaled breath.",
"two things:\n\n1) you don't breathe ... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Bladeless_fan"
]
] | ||
a2urdv | what is grammar? | I'm a native English speaker and I'm stupid and can't understand grammar. Could somebody please explain it to me and provide examples? I'd really appreciate it. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a2urdv/eli5_what_is_grammar/ | {
"a_id": [
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"text": [
"Grammar is just the set of rules that tell you the way language is structured in a language. The rules apply to words themselves, as well as the place in the sentence where the words belong. It's hard to come up with \"examp... | [] | [] | [
[],
[]
] | |
3shxdl | Lack of chances to eat meat in Japan during Showa Period? | I don't know much about Japanese history, so forgive me if I make any inaccurate assumptions.
I recently read, in fiction, of a child talking about their love of meat and the lack of chances to eat any. The author describes it as "a reaction like that of children in the Showa Period (昭和の子供達のようにリアクション)".
This seems to... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3shxdl/lack_of_chances_to_eat_meat_in_japan_during_showa/ | {
"a_id": [
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"text": [
"It's important to remember that a large portion of the Showa period was spent in intense warfare, first with China and then against Pacific powers. \n\nStrict rationing definitely impacted the availability of meat, or any food stuffs beyond the a... | [] | [] | [
[]
] | |
3awgzf | How can meteorites be pure iron/nickel? | I can't understand how some iron/nickel meteorites are pretty much pure iron/nickel. How did so much of these two metals condense from a gas phase to become a meteorite, or several meteorites, or asteroids? Did they used to be the core of a planet? Are they the nuclear ash splash from a nova? I'm OK with gases cond... | askscience | http://www.reddit.com/r/askscience/comments/3awgzf/how_can_meteorites_be_pure_ironnickel/ | {
"a_id": [
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"text": [
" > Did they used to be the core of a planet?\n\nYes, iron meteorites are thought to originate from the cores of differentiated [planetesimals](_URL_0_) shattered in collisions during the formation of the solar system.",
... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Planetesimal"
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[
"https://en.wikipedia.org/wiki/Planetary_differentiation",
"https://en.wikipedia.org/wiki/Goldschmidt_classification#Siderophile_elements"
]
] | |
309gyu | why can you sometimes "pop" a joint/knuckle, and other times not? | Wondering this because some mornings I can pop the joint in my shoulder, other times I cant | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/309gyu/eli5_why_can_you_sometimes_pop_a_jointknuckle_and/ | {
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"text": [
"Popping your knuckles is actually popping cavitation \"bubbles\" present in the sinovial fluid (basically the lubricant for your joints). If there are no bubbles present, there's nothing to pop. The bubbles tend to form following long periods of... | [] | [] | [
[]
] | |
d0ja1r | How were romans perceived, at its greatest extent, by other states or tribes? | There was a sentiment of "oh shit they're gonna comme for us next" or "they must be stopped" ? Were they trusted? They had any nickname for them? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/d0ja1r/how_were_romans_perceived_at_its_greatest_extent/ | {
"a_id": [
"ezj37cf"
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"text": [
"The main difficulty of understanding the perception of Barbarian had of Romans is that every contemporary source was wrote by Romans. There is no real Iberian, Gaulish, British, Irish, Germanic, Sarmatic, Hunnic or Maur author having written down... | [] | [] | [
[]
] | |
2xcvrm | if the life of a racing dog is so bad that greyhounds need rescuing, why is it still legal? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2xcvrm/eli5if_the_life_of_a_racing_dog_is_so_bad_that/ | {
"a_id": [
"coyyrb3",
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5,
4,
19
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"text": [
"Rescue is a term that has come into the lexicon that really doesn't mean what it originally did. A pet rescue is a nicer way to say adoption from a kill shelter. You aren't actually saving it from ab... | [] | [] | [
[],
[],
[]
] | ||
3x5awd | What is the origins of the snake around a pole on an ambulance? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3x5awd/what_is_the_origins_of_the_snake_around_a_pole_on/ | {
"a_id": [
"cy1sur9"
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"score": [
8
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"text": [
"You mean when was it originally put on an ambulance or the origins of the symbols itself?\n\nIn the second case is a symbol connected with the greek god Asclepius, god of healing, son of Apollo."
]
} | [] | [] | [
[]
] | ||
6yfp2v | what happens to animals who live in the ocean beneath where a hurricane is? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6yfp2v/eli5_what_happens_to_animals_who_live_in_the/ | {
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"ht... | ||
669vui | how do make-up artists for shows like 'sons of anarchy' ensure that the fake tattoos always look the same? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/669vui/eli5_how_do_makeup_artists_for_shows_like_sons_of/ | {
"a_id": [
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"text": [
"They do a makeup test for each actor prior to filming. This is done so they can experiment with different styles of makeup and get approval from the director. During the makeup tests they take a lot of reference images of t... | [] | [] | [
[],
[]
] | ||
7j99as | why are some smells stronger than others? e.g. with the same ammount of rotten egg and lavender the rotten egg would be alot more pungent | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7j99as/eli5_why_are_some_smells_stronger_than_others_eg/ | {
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"text": [
"Smells consist of microscopic particles and substances released into the air. Something with more moisture to evaporate or that otherwi... | [] | [] | [
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1nhd13 | What differences led to the history of East Germany and North Korea diverging so much post-WW2? | Prompted by myself [here](_URL_0_), and some initial answers.
I'm curious, in the spirit of Winston Churchill, whether anything could have been done differently to prevent North Korea from becoming so insular. I have seen jokes about North Korea being treated poorly by the US because it doesn't have oil, but it's not ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1nhd13/what_differences_led_to_the_history_of_east/ | {
"a_id": [
"ccipd4x"
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"score": [
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"text": [
"Obviously a cult of personality was a big factor in North Korea's development. Other sources seem to point to the Kim family's power being imposed by the Soviets. Why did a similar situation not occur in East Germany?"
]
} | [] | [
"http://www.reddit.com/r/AskHistorians/comments/1nfrsm/how_did_the_kim_family_come_into_power_in_north/ccijd0s"
] | [
[]
] | |
cho27k | Why is Woodrow Wilson so underrated? Is this just me? | Ever since first learning about President Wilson in school, I’ve been captivated by his time in office and his push for the ratification for the League of Nations and have developed, what some would say, an unhealthy obsession with him [see username]. Although he failed in his main goal of establishing The League of Na... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/cho27k/why_is_woodrow_wilson_so_underrated_is_this_just/ | {
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" > \"That was just the way the majority of society thought back then.\"\n\nSo the long and short of this is no, even by the standards of 1913-1921, Woodrow Wilson was racist, or I suppose at best you could say that he and much of his political c... | [] | [] | [
[]
] | |
9r4an3 | how does my body “escape” a sleep trance? | For example, after staying up at night studying/out, there’s a chance that at one of my classes, I start to really start falling asleep. Like using the might of Zeus to even keep my eyes open falling asleep. When seemingly I’m about to black out and fall asleep, My body will jolt up, “shake it off” and seemingly loose ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9r4an3/eli5_how_does_my_body_escape_a_sleep_trance/ | {
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"I believe this goes back to the fight or flight mode in your body where you know you have to stay awake or else something bad happens.\n\nI’m assuming years ago when hunters were sleepy and needed to hunt they force them self awake with a jolt of... | [] | [] | [
[]
] | |
25ykqf | Why don't wind powered planes exist/work? | Basically the plane would be a normal jet aircraft, but the air intakes would now be small wind turbines powering a battery which powers the jet. This way the aircraft's own forward velocity would power the battery which then allows it to continue its flight.
Why hasn't anyone built this, does engineering just not wor... | askscience | http://www.reddit.com/r/askscience/comments/25ykqf/why_dont_wind_powered_planes_existwork/ | {
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"Actually, many planes have something called a 'Ram Air Turbine', which works almost exactly like you say. However, it's almost only every used in emergencies, when the primary source of power (the engin... | [] | [] | [
[],
[],
[]
] | |
1pbzsj | how the 64bit chip in the new iphone and ipad is useful despite those devices not having more than 3gb of ram | I've seen Apple telling that because of the new 64bit chip performance has doubled and the device is at least two times faster than the previous generation. However whenever I've seen any explanation for 64bit OS people always tell that it is useful for addressing more than 3GB of RAM. None of the Apple devices so far ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1pbzsj/eli5_how_the_64bit_chip_in_the_new_iphone_and/ | {
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"They'll have to move to 64 bit eventually to make it easier and more straightforward to handle > 3 or 4GB of ram. They could have made the chip 32 bit and have the same amount of performance with < 3G... | [] | [] | [
[],
[],
[]
] | |
3jf20u | why does it seem that beaches up north or more rocky, while in the tropics they are more sandy? | or is that just perception? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3jf20u/eli5_why_does_it_seem_that_beaches_up_north_or/ | {
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"At least on the West Coast, there's plenty of sandy beaches on the actual Pacific ocean up through Oregon & Washington. Most people don't want to live there because it's cold, wet & stormy during much of the year.\n\nFo... | [] | [] | [
[
"http://www.vanabode.com/images/long-beach-washington-picture.jpg"
],
[]
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3itjxz | why aren't lawyers referred to as dr. even though they receive a juris doctor degree? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3itjxz/eli5_why_arent_lawyers_referred_to_as_dr_even/ | {
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"text": [
"Lawyers traditionally have a special title, \"esquire\". It's usually abbreviated esq., as in, \"Bob Jones, esq\"",
"I'm a lawyer in the UK (England to be precise, as we have more than one legal system in the UK). Here ... | [] | [] | [
[],
[]
] | |
49pl7p | Is everyone's blood brain barrier equally permeable? | askscience | https://www.reddit.com/r/askscience/comments/49pl7p/is_everyones_blood_brain_barrier_equally_permeable/ | {
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"No. In fact, in certain disease states (most notably Alzheimer's), the barrier is so penetrable it is like it does not even exist. ",
"Stimulant abuse and tobacco smoking ... | [] | [] | [
[],
[
"http://jcb.sagepub.com/content/36/3/539.long",
"http://www.ncbi.nlm.nih.gov/pubmed/26661236"
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w1i9j | How is my breath able to cool a macaroni out of boiling water so fast? | It's hot as hell, if I leave it just to sit for ten seconds it's still really hot, if I blow on it for ten seconds it feels cool.
Only theory I have is that the macaroni is really bad at retaining heat so my cooler-than-boiling-water air that I breathe into it causes the heat to dissipate.
What's really going on her... | askscience | http://www.reddit.com/r/askscience/comments/w1i9j/how_is_my_breath_able_to_cool_a_macaroni_out_of/ | {
"a_id": [
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"text": [
"How much macaroni are you blowing on? Temperature is a measure of average kinetic energy. It doesn't tell you how much _total kinetic energy_ there is. That means that the same, tiny stream of air you're blowing is enough to... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Specific_heat_capacity#Extensive_and_intensive_quantities",
"http://en.wikipedia.org/wiki/Heat_capacity"
],
[
"http://en.wikipedia.org/wiki/Convective_heat_transfer"
]
] | |
stlkk | Is it worse for your liver to drink 3 beers/alcoholic drinks everyday of the week, or 21 drinks 1 day of the week? | askscience | http://www.reddit.com/r/askscience/comments/stlkk/is_it_worse_for_your_liver_to_drink_3/ | {
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"off the top of my head I can tell you that alcohol metabolism has... | [] | [] | [
[],
[],
[
"http://www.netdoctor.co.uk/diseases/facts/alcliver.htm",
"http://info.cancerresearchuk.org/healthyliving/alcohol/alcohol-and-cancer",
"http://www.ceri.com/alcohol.htm",
"http://www.elmhurst.edu/~chm/vchembook/642alcoholmet.html",
"https://en.wikipedia.org/wiki/Steatosis#Pathogenes... | ||
61uli1 | why does it matter which color wire you cut on a bomb? | If the movies are to be believed (I know there's only like a 10% chance of that), which wire you cut can make the difference between defusing and detonating a bomb. Why is that? Wouldn't any cut disconnect the detonator from the power source? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/61uli1/eli5_why_does_it_matter_which_color_wire_you_cut/ | {
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"_URL_0_\n\nIt doesn't. It's just a stupid movie cliche that keeps getting reused by lazy scriptwriters.",
"there is no strict standard to wiring coloring. especially when yo... | [] | [] | [
[
"http://tvtropes.org/pmwiki/pmwiki.php/Main/WireDilemma"
],
[],
[],
[]
] | |
38jpvw | why is australia so strict when it comes to video games? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/38jpvw/eli5_why_is_australia_so_strict_when_it_comes_to/ | {
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"text": [
"This isn't the full story, since they're still very strict, but for years Australia did not have an 18+ rating for games and only a 15+ rating due to South Australia's Attorney-G... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Hot_Coffee_mod"
],
[],
[]
] | ||
9wvnmr | is breathing in ash from a wildfire worse than smoking cigarettes/weed or vaping? what are the physiological reasons? | I go to a Californian university close to some of the wildfires that are currently active. My friends who constantly smoke marijuana, cigarettes and vape bought masks and are making fun of people who don't wear masks calling them stupid and claiming that they're going to get lung cancer faster than if you smoke. Is thi... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9wvnmr/eli5_is_breathing_in_ash_from_a_wildfire_worse/ | {
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"text": [
"I don’t know about the comparisons but I do know that there are a lot of materials in the ash that are carcinogenic. Imagine all the plastics, asbestos, toxic chemicals that are being burned. If it was... | [] | [] | [
[],
[],
[]
] | |
62e3j8 | marxism | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/62e3j8/eli5_marxism/ | {
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"text": [
"Marxism is an economic and social model whereby social classes have been completely destroyed (everyone is working class), production is owned directly by the people, production ... | [] | [] | [
[],
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] | ||
bpv7er | what are the purpose of 4wd and 2wd in vehicles? as well as each having their own hi and low buttons? | I've bought my first truck and it came with these buttons on the dashboard. But i do not know what they're meant for. Please ELI5 | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bpv7er/eli5_what_are_the_purpose_of_4wd_and_2wd_in/ | {
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"2WD stands for Two-Wheel Drive, either Front or Rear, depending on your car. Most likely, FWD.\n\nIn Two-Wheel Drive mode, the power of your engine will be sent to a single axle, and split among both wheels on that axle. This is the most common w... | [] | [] | [
[]
] | |
171m33 | How come monkey bars were easy to do when I was five, but nearly impossible as full-grown man? | I could swing on the monkey bars all day as a child. I don't know if anyone's tried it as an adult, but it's damned difficult! Hanging from your arms in general is much harder.
Why is this? | askscience | http://www.reddit.com/r/askscience/comments/171m33/how_come_monkey_bars_were_easy_to_do_when_i_was/ | {
"a_id": [
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"text": [
"Density and mass, my dear Watson, coupled with the distribution of weight.",
"Hmm, I think this is called the square-cube law in effect.\n\nThe gist is that as you increased in size while maturing to adulthood, the surf... | [] | [] | [
[],
[]
] | |
2aia7w | if i quit smoking after 15 years? what changes will revert in my body and what will be ruined forever? | I cant run a 1/4 of a mile after smoking for 15 years, If I were to quit, would I eventually end up back to normal or is the damage done? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2aia7w/eli5if_i_quit_smoking_after_15_years_what_changes/ | {
"a_id": [
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"From [_URL_1_](_URL_0_):\n\nAs soon as you stop smoking your body begins to repair itself...\n\nWithin 6 hours\n\n Your heart rate slows and your blood pressure decreases.\n\nWithin a day\n\n Almost all of the nicotin... | [] | [] | [
[
"http://www.quit.org.au/reasons-to-quit/health-benefits-of-quitting",
"quit.org.au"
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[]
] | |
3ih5ao | In medieval armies, were the soldiers organized into units, armed with only 1 kind of weapon for the whole unit? | In this game i've been playing(m2tw), my early army is composed of militiamen with 150 man units armed solely with spears or bows, only.
By this I mean, I have five 150 man units with spears, and nine 150 man units with bows.
To this end I thought it was odd that no man in those spear units carried a sword or axe ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3ih5ao/in_medieval_armies_were_the_soldiers_organized/ | {
"a_id": [
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"I asked a similar question before and got some great answers.\n\n_URL_0_\n\nI recommend you look at that thread to answer your question. Basically, from the response, uniformity wasn't very important, so units would be composed of troops with we... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/3990gb/what_would_have_been_the_preferred_weapons_of/"
]
] | |
1lngm4 | why does health care not cover dental, seems like teeth rotting out is bad for your health? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1lngm4/eli5_why_does_health_care_not_cover_dental_seems/ | {
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... | [] | [] | [
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"http://ucatlas.ucsc.edu/spend.php"
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[]
] | ||
2rdgpt | How seriously was an 'Operation Unthinkable' scenario taken by the Western Allies? | I know Churchill was always highly suspicious of the USSR and it was probably the reason why he ordered them (the contingency plans), and Patton even advocated a pre-emptive strike, but I was wondering if this feeling was shared by other military and political leaders of the Western Allies.
I'm fascinated how Churchil... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2rdgpt/how_seriously_was_an_operation_unthinkable/ | {
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" > As a side note, I've struggled to find a copy of the document anywhere online\n\n_URL_0_\n\nThe Americans, for their part were resolutely opposed, and Brooke Portal and Cunningham (British military chiefs) were not at all enthusiastic about t... | [] | [] | [
[
"https://web.archive.org/web/20101116152301/http://www.history.neu.edu/PRO2/"
]
] | |
40ter3 | why aren't road signs slightly tilted? | I live in an area that snows. The road signs get covered in snow and become unreadable. Clearly heating or cleaning road signs would be expensive, but why don't they tilt ever so slightly forward, this would allow the vast majority of snow to fall and if any snow remains it wouldn't obscure the sign. You could make the... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/40ter3/eli5_why_arent_road_signs_slightly_tilted/ | {
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"Two reasons strike me...\n\nFirstly snow round here doesn't stick to vertical surfaces unless it's blowing - and if it's blowing it would probably stick to the sign anyway.\n\nSecondly, you'd lose a lot of the self-cleaning... | [] | [] | [
[],
[]
] | |
2ejd22 | why does it seem like people who are older (i.e. - 30 and above) seem to have more of a gut even if they workout, and what can i do to prevent it from happening to me as i age? | I've heard of people who are older and are still physically active (runs marathons, etc.) but still have a "beer belly" even if they may have a skinny waist. Why is this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2ejd22/eli5_why_does_it_seem_like_people_who_are_older/ | {
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6,
3,
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"text": [
"because their metabolism slows down and although active, they are not active enough to burn the extra kilojoules consumed as such the extra energy is stored as fat in the belly. \n... | [] | [] | [
[],
[],
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] | |
j3hp1 | i suspect this can't be done, but can anyone explain what "postmodern" means li5? | Apologies in advance if this is too complex to easily explain, but I think I've been secretly pretending to understand this term for far too long.
EDIT: This had already been asked-- look [here](_URL_0_) for more answers. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j3hp1/i_suspect_this_cant_be_done_but_can_anyone/ | {
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"text": [
"Post modernists believe there is no absolute truth, only relative truth, in that sense, everything is true and nothing is true.\n\nWhatever is true for you, may not be true for me.... | [] | [
"http://www.reddit.com/r/explainlikeimfive/comments/j2xcs/can_someone_explain_postmodernism_like_im_5_please/"
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[],
[],
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"http://www.reddit.com/r/explainlikeimfive/comments/j2xcs/can_someone_explain_postmodernism_like_im_5_please/"
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mghw3 | A hundred years from now, how will we view the Occupy movement and the Arab Spring? | From your opinions, good men and women of this subreddit, I ask the aforementioned question. Speculatively, how will we view the current events a century from now, when our children/grandchildren are viewing back on our choices and actions? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/mghw3/a_hundred_years_from_now_how_will_we_view_the/ | {
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"text": [
"It depends completely on the long-term consequences of both. If the Arab states collapse into corruption and internal conflict, and th... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Historiography"
],
[],
[],
[
"http://en.wikipedia.org/wiki/Historiography"
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] | |
if2dj | What is the difference between a flame temperature and a similar temperature with no flame? | What is the difference between an open flame and straight temperature? Why can I light gasoline with an open flame that's less hot than a cigarette ember? The ember goes out but the flame ignites the gas. | askscience | http://www.reddit.com/r/askscience/comments/if2dj/what_is_the_difference_between_a_flame/ | {
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"There is none. The flame of the gasoline is a redox reaction, octane + oxygen gas - > carbon dioxide + water. Redox reactions generate heat and are accelerated by heat, and the heat of the match or ot... | [] | [] | [
[],
[],
[]
] | |
nbi1s | Why are auto-immune diseases more prevalent in women? | ~80% of auto-immune diseases occur in women. I know there is no accepted explanation, but what are the theories? | askscience | http://www.reddit.com/r/askscience/comments/nbi1s/why_are_autoimmune_diseases_more_prevalent_in/ | {
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16,
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"text": [
"I'd like to ask a similar question: could his be a reason cancer is more prevalent in males than females? The females immune system is more reactive so perhaps better at killing ... | [] | [] | [
[],
[
"http://www.ncbi.nlm.nih.gov/pubmed/18603021"
],
[],
[
"http://www.ncbi.nlm.nih.gov/pubmed/18603021"
]
] | |
1s76iy | How has South Africa avoided many of the problems the rest of Africa has had? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1s76iy/how_has_south_africa_avoided_many_of_the_problems/ | {
"a_id": [
"cduptqu"
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4
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"text": [
"Just as a heads up OP, this sub has a policy of not discussing topics under 20 years old, and is enforced everywhere outside of the main Mandela sub. While no doubt the history of South Africa leading up to December 1993 is pertinent to your ques... | [] | [] | [
[]
] | ||
oaj1p | how do diuretics "flush excess fluid" from one's body? (x-post from /r/askscience) | For example- Why do I have to pee urgently after drinking strongly brewed, caffeinated tea? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/oaj1p/eli5_how_do_diuretics_flush_excess_fluid_from/ | {
"a_id": [
"c3fqs46",
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"score": [
2,
5
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"text": [
"Am a nurse, not a Pharmacist, but I did reasonably well in pharmacology. \n\nDiuretics don't flush out excess fluid. They increase the amount of water that is not reabsorbed in the nephron (functional unit of the kidney). Th... | [] | [] | [
[],
[]
] | |
3sma7t | why can my computer run games like portal and deus ex perfectly well, but it struggles and lags while playing online flash games? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3sma7t/eli5_why_can_my_computer_run_games_like_portal/ | {
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"text": [
"It could be any number of issues, really, depending on your machine and what you're running.\n\nThe most likely culprit here, given your examples, is efficiency of coding. Code can be written in many di... | [] | [] | [
[],
[],
[]
] | ||
134ydl | would Diogenes have been executed if he'd really said this to Alexander the Great? | supposedly when Alexander visited Corinth in 336BC, he met the philosopher Diogenes who said this to him when asked why he was looking at a pile of bones?
"I am searching for the bones of your father but cannot distinguish them from those of a slave." | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/134ydl/would_diogenes_have_been_executed_if_hed_really/ | {
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"text": [
"Knowing Alexander's temper, he probably would have done it himself. He did have a weird relationship with his father ('s memory), but I don't think he would have dealt with this disrespect very well. Honouring the father was... | [] | [] | [
[],
[]
] | |
2kuny8 | Would there be noticeable gravity around a comet this large? (pic included) | Pic from r/frission _URL_0_ (Boeing 747 for scale)
How large would a celestial body need to be to pull you to the surface in a reasonable timeframe ( < 15min)? | askscience | http://www.reddit.com/r/askscience/comments/2kuny8/would_there_be_noticeable_gravity_around_a_comet/ | {
"a_id": [
"clp3bn6"
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"text": [
"The gravitational force between two objects is given by the equation F_g = G m_1 * m_2 / r^2 , where G is the gravitational constant, 6.67*10^-11 nm^2 / kg^2, m_1 and m_2 are the masses of the objects, and r is the distance between their centers ... | [] | [
"https://i.imgur.com/jf1IWp3.jpg"
] | [
[
"http://www.wolframalpha.com/input/?i=G*10^13+kg+%2F+30+km",
"http://www.wolframalpha.com/input/?i=G*10^13+kg+%2F+4+km"
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] | |
bllwuq | Did people in the middle ages ever ACTUALLY plan battles using miniatures on top of a big table map? | I noticed in the latest Game of Thrones episode they used the common trope of generals planning a battle by standing around a big map on top of a table pushing miniatures around.
I'm not aware of this having happened in my own flaired time & place, but that doesn't mean it didn't happen. Does anybody know if they e... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/bllwuq/did_people_in_the_middle_ages_ever_actually_plan/ | {
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"No.\n\nIn Classical Greece, my area of expertise, this certainly did not happen. I'm not as qualified to speak on other premodern eras or regions. But I think there's prett... | [] | [] | [
[
"https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Plotting_Table.jpg/1200px-Plotting_Table.jpg",
"https://en.wikipedia.org/wiki/Churchill_War_Rooms#/media/File:MapRoomCabinetWarRoomsTrim.jpg"
],
[
"https://www.reddit.com/r/AskHistorians/comments/2194bg/is_there_historical_evidence_to_supp... | |
8da39z | How do swept wings differ from straight wings in performance? | askscience | https://www.reddit.com/r/askscience/comments/8da39z/how_do_swept_wings_differ_from_straight_wings_in/ | {
"a_id": [
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"text": [
"Swept wings increase Mach crit. Basically the aircraft can go faster before supersonic flow starts to develop on the wing. They produce less lift and have higher stall speeds. Stalls will start at win... | [] | [] | [
[],
[],
[]
] | ||
5qcrux | what does sunlight consist of, and why do some parts pass through windows while other parts don't? | Sunlight and its heat penetrates windows, but you can't get a sunburn from sun through a window. What causes this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5qcrux/eli5_what_does_sunlight_consist_of_and_why_do/ | {
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"score": [
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"text": [
"Sunlight and heat are (in simple terms, heat is complex) both electromagnetic radiation. They just have different frequencies (the rate at which the wave repeats itself, think of it like the number of w... | [] | [] | [
[],
[],
[
"http://www.cyberphysics.co.uk/topics/radioact/Radio/EMSpectrumcolor.jpg",
"https://i.stack.imgur.com/eejRR.gif"
]
] | |
350o5d | if every action has an equal and opposite reaction (newton's 3rd law of motion), then why isn't everything in equilibrium? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/350o5d/eli5_if_every_action_has_an_equal_and_opposite/ | {
"a_id": [
"cqzuhpn",
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"score": [
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"text": [
"Because it doesn't work like that. A better statement of the law would be that:\n\n > The application of a force to an object results in the object applying an equal magnitude and opposite aligned force to the actor.\n\nYou ... | [] | [] | [
[],
[]
] | ||
3iysdj | why do religious christians care so much about the legality of gay marriage, but not about the legality of cheating on your spouse? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3iysdj/eli5why_do_religious_christians_care_so_much/ | {
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1ldgn1 | why the human body hasn't evolved past forming an appendix. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1ldgn1/eli5_why_the_human_body_hasnt_evolved_past/ | {
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"Although it doesn't do anything, the appendix very rarely hurts anything (few people get appendicitis, very few die from it). As a result, having or not having an appendix doesn't much change how you re... | [] | [] | [
[],
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[]
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3cb6ih | if the world population is supposed to be too big for the amount of resources we have, then why do governments facing population decline actively encourage their citizens to have children? | Bonus question: does the world population *actually* outnumber its resources or is that a myth? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3cb6ih/eli5if_the_world_population_is_supposed_to_be_too/ | {
"a_id": [
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"score": [
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"text": [
"Governments with shrinking populations encourage people to have more children because otherwise the average age of the population gets higher and higher. Then you end up with a smaller and smaller number of young workers sup... | [] | [] | [
[],
[]
] | |
1d4363 | How long would it take for all manmade satellites & trash to fall out of orbit naturally? | If we stopped sending stuff up there, and stopped blowing them up (looking at you china..) how long would it take for them to fall out of orbit and burn up in the atmosphere? Would some of them just stay up there indefinitely? | askscience | http://www.reddit.com/r/askscience/comments/1d4363/how_long_would_it_take_for_all_manmade_satellites/ | {
"a_id": [
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"text": [
"No such thing as a perfect orbit exists. Think of how varied the surface of the Earth is, not to mention tidal forces. The Moon has influence over Earth's satellites, and even other planets. There are possible points, called Lagrange points, b... | [] | [] | [
[]
] | |
61zses | why does caloric restriction decrease rate of aging? | So I've been reading some stuff out of idle curiosity but it appears that caloric restriction in mice decreases the rate of aging as well as apparently extending life span. One would imagine that fasting like that would be bad for you, and apparently in people, prolonged restriction in men and premenopausal women over ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/61zses/eli5_why_does_caloric_restriction_decrease_rate/ | {
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"Pretty sure its an evolutionary development. ... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Autophagy"
],
[],
[
"http://www.sciencedirect.com/science/article/pii/S1550413115002247"
],
[],
[
"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3569090/"
],
[],
[],
[]
] | |
19qg9u | 'Peak Oil' and 'Abiotic origin of oil vs Fossil'? | How much is true in the claims of the Peak Oil? What is the scientific consensus on the subject? What is the most trustwprthy publication?
_URL_0_
And how much is true, or what is the current consensus about the investigations and claims about the so called 'Abiogenic (or abiotic) origin of petroleum' (an natural gase... | askscience | http://www.reddit.com/r/askscience/comments/19qg9u/peak_oil_and_abiotic_origin_of_oil_vs_fossil/ | {
"a_id": [
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"score": [
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"text": [
"Most of the peak oil alarmist crowd seem to forget about unconventional sources of oil. 20 years ago it was not viable to extract oil from the Canadian oil sands or shale oil/gas plays in the US. New technology has made th... | [] | [
"http://www.peakoil.net/",
"http://www.greenparty.ca/blogs/12489/2012-08-28/more-evidence-abiotic-oil",
"http://www.viewzone.com/abioticoilx.html"
] | [
[],
[]
] | |
4j674v | where does the energy from radio or other waves go when disrupted by a faraday cage? | I know that a Faraday cage prevents types of waves from passing through it but where does the energy from these waves go? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4j674v/eli5_where_does_the_energy_from_radio_or_other/ | {
"a_id": [
"d33ze4c"
],
"score": [
3
],
"text": [
"think of it as a large concrete tube placed vertically in a pool.\nWhen a wave is generated outside the tube, the water inside the tube will go undisturbed and an observer will not feel the wave. The tube didn't really adsorb the energy of the wa... | [] | [] | [
[]
] | |
873qnu | why does the syphon effect not occur when we suck from a straw? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/873qnu/eli5_why_does_the_syphon_effect_not_occur_when_we/ | {
"a_id": [
"dw9xxrg"
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"text": [
"A siphon gets the energy to pull fluid up the tube from the energy of the fluid falling down the other side of the tube; the total movement of the fluid is overall downward.\n\nWhen drinking from a straw we are pulling a relative vacuum at the to... | [] | [] | [
[]
] | ||
1iz0wo | jim crow laws, and the significance | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1iz0wo/eli5jim_crow_laws_and_the_significance/ | {
"a_id": [
"cb9fpau"
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"score": [
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"text": [
"The Jim Crow laws were laws in the Southern United States that started to take effect in the late 1800s. They mandated a \"separate but equal\" status for african-american citizens and were the gateways and legal backbones to racial segregation i... | [] | [] | [
[]
] | ||
1n9lqw | why uk doesn't want an european federation? | As an Italian I've always wondered why England is so Anti-Europe and Independentist, is it because of monarchy/political/historical problems or economical opinion? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1n9lqw/eli5_why_uk_doesnt_want_an_european_federation/ | {
"a_id": [
"ccgldgl"
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"score": [
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"text": [
"Your friends suggest that it would be in everyone's interest to group together and rent a large house. Your friends are mostly good people, but Bill is known to leave his shit everywhere and rarely does dishes, he's a slob and you don't \"fit\" w... | [] | [] | [
[]
] | |
3lt9hc | how does the voyager still have power after all the years it's been in space? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3lt9hc/eli5_how_does_the_voyager_still_have_power_after/ | {
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"cv9iexb",
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"cv9kkob",
"c... | [] | [] | [
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"https://xkcd.com/1162/"
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"http://www.slate.com/articles/news_and_politics/explainer/2003/11/what_fuel_does_voyager_1_use.html"
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"http://mars.nasa.gov/msl/missi... | ||
5qs2a1 | Language of Hirohito's surrender speech | I understand that the Japanese emperor's speech to the Japanese people announcing the surrender in World War II was delivered in a "courtly" register of Japanese that was difficult for the populace to understand. Was that because the occasion was thought to require that level of formality, or did the Japanese emperor t... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5qs2a1/language_of_hirohitos_surrender_speech/ | {
"a_id": [
"dd1sjk5"
],
"score": [
2
],
"text": [
"It's the same way we \"code-switch\" all the time when we say words out loud. We consciously and unconsciously use different words, tones, and cadence depending on the audience, the setting, the topic, and the overall context. Magnify that by 100... | [] | [] | [
[]
] | |
puei5 | How can 8oz of Diet Mountain Dew have 0 calories, but the 20oz bottle have 10? | is it related to how they measure, variances, etc.? | askscience | http://www.reddit.com/r/askscience/comments/puei5/how_can_8oz_of_diet_mountain_dew_have_0_calories/ | {
"a_id": [
"c3sb779"
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"score": [
20
],
"text": [
"[Crazy Food Laws](_URL_0_)\n\nThere are specific rules and regulations in how a company must list the Caloric information on their products. Calories must be listed in 5 calorie increments up to a total of 50, anything beyond that must be in 10... | [] | [] | [
[
"http://books.google.com/books?id=-3L3h5fI1RQC&pg=PA98&lpg=PA98&dq=law+allows+5+calories+to+be+listed+as+0&source=bl&ots=NG7tx_fZYi&sig=N5X7otD5QVpg6LOie3kyBDwnNoM&hl=en&sa=X&ei=D8U-T_uHKsmL2AW_9OGyCA&ved=0CB8Q6AEwAA#v=onepage&q&f=false"
]
] | |
8ds1tm | why is peeing in the pool gross? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8ds1tm/eli5_why_is_peeing_in_the_pool_gross/ | {
"a_id": [
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"text": [
"Because other people swimming in the pool don't want your pee to get on them. If they wouldn't let you pee directly on them, then they're also not going to want your diluted pee all over their skin, in their eyes, and in th... | [] | [] | [
[],
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] | ||
5nkx37 | why aren't there more "network" tv stations? | For my entire life there have been four of what I would consider network TV stations: ABC, CBS, NBC and FOX. I get these without having cable. I also get PBS and a couple others which may be considered network as well though I'm not sure.
I believe FOX wasn't always counted among these so seemingly it's possible to... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5nkx37/eli5why_arent_there_more_network_tv_stations/ | {
"a_id": [
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"score": [
2,
3,
2
],
"text": [
"It's the \"network\" part of network. All of those companies got started by setting up over-the-air antenna broadcast systems, with tons of antennas throughout the country showing the same things simult... | [] | [] | [
[],
[],
[]
] | |
f83c2e | Can viruses evolve to become resistant to vaccines? | With the anti-vaccination movement getting larger and larger by the day, if there comes a day where they overwhelm crowds of vaccinated people, is it possible over time for viruses to evolve to become resistant to vaccinations? I know bacteria have mutant genes that allow them to be resistant to antibiotics, and i’m wo... | askscience | https://www.reddit.com/r/askscience/comments/f83c2e/can_viruses_evolve_to_become_resistant_to_vaccines/ | {
"a_id": [
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"score": [
14,
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2
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"text": [
"Yes and no.\n\nIt's not that the virus can become resistant to the vaccine, it's that the vaccine is only good against a certain strain of virus.\n\nBasically, the vaccine stimulates your body, so tha... | [] | [] | [
[],
[
"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4926175/",
"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4464907/",
"https://www.ncbi.nlm.nih.gov/pubmed/30104379",
"https://jvi.asm.org/content/92/16/e00754-18.long"
],
[
"http://www.virology.ws/2009/05/15/increased-fidelity-reduces-vira... | |
4de3ms | why do professors continuously write exams with extremely low averages and then curve, rather than write easier exams? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4de3ms/eli5_why_do_professors_continuously_write_exams/ | {
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"d... | [] | [] | [
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"http://i.imgur.com/g3dCuoe.png",
"https://en.wikipedia.org/wiki/Normal_distribution",
"http://i.imgur.com/X2Ynko9.png",
"http://i.imgur.com/13qzqQb.png"
],
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8ej6er | why is it not possible to modify a file's name while it's open? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8ej6er/eli5_why_is_it_not_possible_to_modify_a_files/ | {
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"text": [
"Because Windows forbids it. There is no technical problem with allowing it, and in fact... | [] | [] | [
[],
[],
[
"https://pastebin.com/G3gb03u8"
],
[],
[],
[],
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19pocr | why babies are born all messed up when a a brother has sex with a sister? like an inbred child? | I just saw a post that had a picture of a pretty fucked up baby and it said "this is what happens when you knock up your sister"
Well I never really knew why that happens, can someone explain? I remember hearing how it's because of certain genes. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/19pocr/eli5_why_babies_are_born_all_messed_up_when_a_a/ | {
"a_id": [
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"score": [
29,
12
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"text": [
"What you're talking about is \"deadly recessive\" genes.\n\nSexual reproduction (rather than asexual reproduction, where a creature does not need a mate to create an offspring) has one big advantage: it combines the DNA of... | [] | [] | [
[],
[]
] | |
8r72gb | Is there a scientific reason why I can remember the words from pop songs I knew 20 years ago, but it’s difficult to remember new facts? | askscience | https://www.reddit.com/r/askscience/comments/8r72gb/is_there_a_scientific_reason_why_i_can_remember/ | {
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"e0p5vpi",
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"score": [
17,
2,
4
],
"text": [
"1) Repetition. Singing those over and over\n2) catchy/rhyming lyrics are easier to remember.\n\nWhen we practice or repeat something our brains remember better. Something new might “make a dent in the ... | [] | [] | [
[],
[],
[]
] | ||
11kjmv | how water seemengly "spoils" if left out too long? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/11kjmv/eli5_how_water_seemengly_spoils_if_left_out_too/ | {
"a_id": [
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"score": [
3,
2
],
"text": [
"Stagnant Water is a breeding ground for bacteria.",
"why does bottled water have an expiration date?"
]
} | [] | [] | [
[],
[]
] | ||
1b5tn5 | why is money backed up with gold | Why gold? Why do we "collect" (or used to)
Gold and not any other metal or anything else to back up the worth of our money? What makes gold so special and valuable above any other good? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1b5tn5/eli5_why_is_money_backed_up_with_gold/ | {
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19,
7,
3
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"text": [
"Currency is no longer backed by gold in any country. The currency of the US (I'm not sure about other countries) is backed by the federal government, not any physical object.",
"Most if not all mon... | [] | [] | [
[],
[
"http://www.npr.org/blogs/money/2011/02/15/131430755/a-chemist-explains-why-gold-beat-out-lithium-osmium-einsteinium"
],
[]
] | |
6o8vvv | do animals get sexually aroused when touched like humans do ? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6o8vvv/eli5do_animals_get_sexually_aroused_when_touched/ | {
"a_id": [
"dkfga2f",
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"score": [
12,
5
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"text": [
"They can yes.\n\n\nMy dog on his own has sprouted an erection just scratching his belly right and he's been neutered for the last 4.5 years.",
"Some do, yes. Artificial insemination procedures have to get the semen some... | [] | [] | [
[],
[]
] | ||
c91h3h | why movies subtitles sometimes omit words? | I practice english by watching US tv series with English subtitles and I have noticed that sometimes subtitles are not 100% accurate. Some words are omitted or changed.
Why does this happen? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c91h3h/eli5_why_movies_subtitles_sometimes_omit_words/ | {
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"text": [
"Because, depending on the requests of the distributors, you may need a certain number of characters per line and different reading speeds, meaning you have to make a subtitle within a limited time and if the person speaking says a lot in a very ... | [] | [] | [
[]
] | |
e7jikf | If you don't initiate the Great Purge as the Soviets in HOI4, Trotsky comes back and starts a civil war. Was there actually a "Trotskyite Plot" in the Soviet Union? Was Stalin's paranoia justified? | My impression of the Great Purge is that most of what the people "confessed" to with regard to Trotsky was mostly bogus; Trotsky had no contact with these people, and he had no network of spies and saboteurs in the Soviet Union. HOI4 plays this a little differently, obviously. I was just wondering, did Trotsky actually... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/e7jikf/if_you_dont_initiate_the_great_purge_as_the/ | {
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],
"text": [
"There certainly was no Trotskyite plot in the sense in which the Stalinists claimed, with wreckers, terrorists and so on. All of such claims by the accused during the show trials were [forced](_URL_3_) out of them, which is amply documented, and... | [] | [] | [
[
"https://www.marxists.org/archive/broue/1980/01/bloc-app.html#ls",
"https://www.marxists.org/archive/broue/1980/01/bloc-app.html#lt",
"https://www.marxists.org/archive/broue/1980/01/bloc-app.html#van",
"http://holocaustcontroversies.blogspot.com/2019/08/again-about-stalinist-deniers-yes.html",
... | |
41xmhu | Who do fruits and vegetables sometimes have smaller fruits and vegetables inside them? | I cut open a red pepper the other day and there was another smaller pepper inside it. The same thing sometimes happens with oranges too. Are the seeds sprouting inside them or something? | askscience | https://www.reddit.com/r/askscience/comments/41xmhu/who_do_fruits_and_vegetables_sometimes_have/ | {
"a_id": [
"cz6e2az"
],
"score": [
9
],
"text": [
"This is called Internal Proliferation and is a form of Parthenocarpy (the development of a fruit without fertilisation).\n\nWhen your pepper flower is pollinated it triggers the development of the fruit and each fertilised ovule will go on to for... | [] | [] | [
[
"http://www.biodiversitylibrary.org/item/7996#page/209/mode/1up",
"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3214887/"
]
] | |
8c6lmh | How can metals exist in celestial objects in immense amounts? | What are some possible cosmological events that could lead to astronomical objects being composed of extremely high percentages of metals? (excl. metallic non-metals)
Accordingly, could there be bodies that are almost completely made of metals, such as nickel, magnesium, or iron? | askscience | https://www.reddit.com/r/askscience/comments/8c6lmh/how_can_metals_exist_in_celestial_objects_in/ | {
"a_id": [
"dxdt7hw",
"dxeos7f"
],
"score": [
5,
2
],
"text": [
"Hydrogen and helium outnumber metals by many orders of magnitude, so the only way to get a lot of metal in one place without elements 1 and 2 is to accrete mass indiscriminately and then separate out the metal somehow.\n\nFo... | [] | [] | [
[
"https://en.wikipedia.org/wiki/16_Psyche"
],
[
"https://en.wikipedia.org/wiki/Nebular_hypothesis"
]
] | |
678jof | what are these circles i have marked on google maps? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/678jof/eli5what_are_these_circles_i_have_marked_on/ | {
"a_id": [
"dgohqex"
],
"score": [
2
],
"text": [
"They're called 'revetments'. Piles of earth built up to protect whatever is inside the circle from blast and shrapnel of a near miss. They're probably for artillery, given the round shape, but possibly anti-aircraft artillery. \n\n [Pic](_URL_0... | [] | [] | [
[
"https://ahec.armywarcollege.edu/trail/Vietnam/img/1_lrg.jpg"
]
] | ||
64glen | I know that a certain percentage of adults who were diagnosed with ADHD tend to "grow out of it" as they reach adulthood. Is the reason simply that they were misdiagnosed? | askscience | https://www.reddit.com/r/askscience/comments/64glen/i_know_that_a_certain_percentage_of_adults_who/ | {
"a_id": [
"dg2aocv",
"dg2ebti"
],
"score": [
22,
7
],
"text": [
"Not really DSM-5 is pretty accurate for ADHD. It's more of a misinterpretation to say they \"grow out of it\" they still have it for life just typically they learn to better manage the symptoms. Also ADHD is more pronounced... | [] | [] | [
[],
[]
] | ||
15lsfk | what is the difference between dui and dwi? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/15lsfk/what_is_the_difference_between_dui_and_dwi/ | {
"a_id": [
"c7nlgcm",
"c7nt6f3"
],
"score": [
6,
2
],
"text": [
"DUI is an acronym for driving under the influence. DWI stands for driving while intoxicated. In some cases, depending on state law, the two terms are both used to describe impaired or drunken driving. Some state laws refer t... | [] | [] | [
[],
[]
] | ||
57fiwo | why is it harder for weed smoke to set off my fire alarm compared to a little smoke from my burnt grilled cheese sandwich. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/57fiwo/eli5why_is_it_harder_for_weed_smoke_to_set_off_my/ | {
"a_id": [
"d8rjizw",
"d8rk0lv",
"d8sbyxh"
],
"score": [
20,
49,
4
],
"text": [
"Like I've hot boxed this place before. No alarm. Just a lil baby burn on mah grilled cheese and my neighbors are mad",
"There are two types of smoke detectors: optical and ionizing ones. \nI don't... | [] | [] | [
[],
[],
[]
] | ||
ppygb | Why can't more animals digest cellulose? | The population of most animals is based on food supply, so surely any animal that can get energy from cellulose in trees and shrubs has a nearly unlimited supply of food in the vegetated parts of the world.
Humans for instance eat grains and fruits, but avoid twigs, wood, and most other vegetation because of the hard ... | askscience | http://www.reddit.com/r/askscience/comments/ppygb/why_cant_more_animals_digest_cellulose/ | {
"a_id": [
"c3rb641",
"c3rcsuq",
"c3rczmp"
],
"score": [
4,
2,
2
],
"text": [
"I believe it has too do with the amount of energy related to actually metabolising cellulose. Cellulose in itself is incredibly inefficient in terms of the amount of calories you are able to get during ... | [] | [] | [
[],
[],
[]
] | |
r39xt | Is the science concerning the harmfulness of second hand smoke truly settled? | There seems to be a firm consensus in the public health community that second hand smoke causes severe harm to nonsmokers.
However there are also people who cast serious doubt on the epidemiological studies and meta analysis, but these people generally get dismissed as industry shills
One of the people who doubts th... | askscience | http://www.reddit.com/r/askscience/comments/r39xt/is_the_science_concerning_the_harmfulness_of/ | {
"a_id": [
"c42khzz",
"c42ki39",
"c42kjkq",
"c42kjyd",
"c42klmy",
"c42ko8a",
"c42kr33",
"c42kt7c",
"c42kuj6",
"c42kxmm",
"c42kxrf",
"c42kzji",
"c42la3b",
"c42ld2n",
"c42liaa",
"c42lin4",
"c42lmf6",
"c42lmkf",
"c42lwxw",
"c42mf4m",
"c... | [] | [
"http://en.wikipedia.org/wiki/Asbestos#Environmental_asbestos",
"http://en.wikipedia.org/wiki/Linear_no-threshold_model",
"http://www.biomedcentral.com/1742-5573/4/11"
] | [
[
"http://www.sourcewatch.org/index.php?title=James_E._Enstrom"
],
[],
[
"http://velvetgloveironfist.com/index.php?page_id=33",
"http://www.thefreesociety.org/Columnists/Chris-Snowdon/thirdhand-smoke-fever-a-further-example-of-prejudice-and-propaganda",
"http://velvetgloveironfist.blogspot.de/... | |
7bxmvy | how does a company benefit from offering its employees discounts on its products? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7bxmvy/eli5_how_does_a_company_benefit_from_offering_its/ | {
"a_id": [
"dplkfgo",
"dplkfty",
"dplkm86",
"dpll5qr",
"dplmu9o",
"dplpog9"
],
"score": [
14,
2,
11,
7,
9,
2
],
"text": [
"Recruiting and retention. A discount is a job perk which draws people to work there. The discount often keeps them there too. This act... | [] | [] | [
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Eating_your_own_dog_food"
],
[],
[]
] |
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