q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
value | subreddit stringclasses 3
values | url stringlengths 4 132 | answers dict | title_urls list | selftext_urls list | answers_urls list |
|---|---|---|---|---|---|---|---|---|---|
5wlvmn | Can people with schizophrenia learn things from the voices they hear? | askscience | https://www.reddit.com/r/askscience/comments/5wlvmn/can_people_with_schizophrenia_learn_things_from/ | {
"a_id": [
"debw7bs"
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"Haha No that's not how it works, most the time they are telling the person things that are going on (but not actually true) ig. \"That person over there knows about your secret\" or \"I need to go to the airport I have a plane to catch\" and a lo... | [] | [] | [
[]
] | ||
2i3fa8 | how do colorless pictures from the 1900s and below get an accurate colorization? how does one go about doing the transformation? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2i3fa8/eli5_how_do_colorless_pictures_from_the_1900s_and/ | {
"a_id": [
"ckyldqg",
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"score": [
6,
3,
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"text": [
"I've done some colorization and honestly I just guess. It's easy enough to shift colors once you've applied them so I just tweak it until it looks right.\n\nI'm not sure if there is software that can lo... | [] | [] | [
[],
[
"http://i.imgur.com/JPPpHJA.jpg"
],
[]
] | ||
15r6vu | What was the reaction to the sacking of Baghdad by the Mongols in Europe? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/15r6vu/what_was_the_reaction_to_the_sacking_of_baghdad/ | {
"a_id": [
"c7papod"
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"text": [
"Until actual direct contact with the mongols, europeans interpreted what snippets of information they had into a legend of 'Prester John', a wealthy christian king isolated among heathens somewhere in the Orient, who was striking the Muslims in t... | [] | [] | [
[]
] | ||
8v9ib5 | During D-Day, the Allies painted zebra stripes on all their aircraft to identify them as friendlies. Are there any records of the Luftwaffe painting zebra stripes on their own planes, to trick the Allies? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8v9ib5/during_dday_the_allies_painted_zebra_stripes_on/ | {
"a_id": [
"e1lmiia"
],
"score": [
22
],
"text": [
"From [an earlier answer of mine](_URL_2_)\n\nThere are two things going on here with why the Luftwaffe did not use invasion stripes as a false flag. \n\nOne, despite the ubiquity of invasion stripes in plastic models and warbirds, they were not ... | [] | [] | [
[
"http://www.lafiere.com/www.lafiere.com/oldsite/sitebuilder/images/1944_06_Invasion_Stripes_on_Dakota_02-400x285.jpg",
"http://www.lonesentry.com/images/wp-content/uploads/2013/01/b-26-medium-bomber-ww2.jpg",
"https://www.reddit.com/r/AskHistorians/comments/88riwt/in_wwii_did_the_axis_powers_ever_pain... | ||
rzipl | the relationship between the us and its territories (peurto rico, etc.) | What sort of control does the US have over its territories, and what independence do they retain? Why would a territory want to remain a territory and not become a state or its own country? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/rzipl/eli5_the_relationship_between_the_us_and_its/ | {
"a_id": [
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"text": [
"*Puerto Rico dammit",
"There is a huge range between the different territories and the local and federal politics over their status also is very diverse (both for example betw... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Insular_Area",
"http://en.wikipedia.org/wiki/Dependent_territory#United_States"
],
[],
[
"http://en.wikipedia.org/wiki/Political_divisions_of_the_United_States#Jurisdictions_not_administered_by_the_states"
]
] | |
3edc8y | Are there purple stars? | I understand that blue stars are hotter due to blue light having a smaller wavelength and therefore higher energy than red light. Does this mean there are purple stars that are even hotter? Are there stars that aren't visible to the naked eye because they emit no light in the visible spectrum? | askscience | http://www.reddit.com/r/askscience/comments/3edc8y/are_there_purple_stars/ | {
"a_id": [
"ctdvf8o"
],
"score": [
23
],
"text": [
"No, there are not. First of all there is a slight error in your question, purple is not a spectral color (it is how our eyes perceive a mixture of blue and red light), light of higher energy than blue would be violet. However, no, there are no v... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Planckian_locus",
"https://upload.wikimedia.org/wikipedia/commons/8/8b/Morgan-Keenan_spectral_classification.png",
"https://en.wikipedia.org/wiki/Black_body",
"https://upload.wikimedia.org/wikipedia/commons/5/55/Solar_AM0_spectrum_with_visible_spectrum_background_%28... | |
4vgqml | could we really hook a human brain up to a machine that simulates the body functions and live? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4vgqml/eli5_could_we_really_hook_a_human_brain_up_to_a/ | {
"a_id": [
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"score": [
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2,
2
],
"text": [
"Someday maybe, but not today or any time soon.\n\n\nThe question of simulating bodily functions is an interesting one. If you provide nutrients to a disembodied brain are you sim... | [] | [] | [
[],
[
"https://www.youtube.com/watch?v=K_T8OuYIfhM",
"https://en.wikipedia.org/wiki/Experiments_in_the_Revival_of_Organisms"
],
[],
[]
] | ||
7l8c4u | what is actually coming out when a girl squirts? why can't all girls squirt? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7l8c4u/eli5_what_is_actually_coming_out_when_a_girl/ | {
"a_id": [
"drkalk2"
],
"score": [
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"text": [
"Depends on what you mean when you are talking about squirting. \n\nIf you are talking about what is commonly done in porn and called squirting? That is often a woman urinating to make it look like she is gushing liquid. \n\nWith actual squirting ... | [] | [] | [
[]
] | ||
znm9m | Dear Reddit, what is the difference between a dipole-dipole interaction and a dipole-induced interaction? | From what I can gather, a "dipole-induced" interaction starts with a molecule that can't have a dipole moment by itself, but is able to in a compound where a second molecule with ions is present. Perhaps it's the earliness of the hour, but this makes zero sense to me.
Asked in the context of: _URL_0_ | askscience | http://www.reddit.com/r/askscience/comments/znm9m/dear_reddit_what_is_the_difference_between_a/ | {
"a_id": [
"c665ga5"
],
"score": [
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],
"text": [
"In a dipole-dipole interaction, you have a permanent dipole moment in a molecule interacting with another permanent dipole moment electrostatically. In other words, you have an area of a molecule with a permanent partial positive charge interact... | [] | [
"http://img513.imageshack.us/img513/8973/screenshot20120910at111.png"
] | [
[]
] | |
88y0w1 | why does a video stop and show the buffering icon when the grey bar which runs ahead of the main progress bar in them is still much ahead? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/88y0w1/eli5_why_does_a_video_stop_and_show_the_buffering/ | {
"a_id": [
"dwo1rmv",
"dwo1rvp"
],
"score": [
8,
2
],
"text": [
"This depends a lot on what player you're using, but could be because the player is supposed to have a certain amount of data buffered (say, 5 - 10 seconds or so) and has dropped below that threshold.\n\nOr there could have b... | [] | [] | [
[],
[]
] | ||
3mc9sz | Are there land animals that developed with only two limbs? | There seem to be at least 4 in all life forms on land, primates developed arms and legs, birds legs and wings, most mamals are on 4 legs and the majority of nature has 4 or 6 legs or even more.
Is there some niche creture that gets along just fine with with just two legs and no arms for example? | askscience | https://www.reddit.com/r/askscience/comments/3mc9sz/are_there_land_animals_that_developed_with_only/ | {
"a_id": [
"cvdxcyx"
],
"score": [
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],
"text": [
"All the animals you cited are tetrapods (\"four footed\") which are by definition descended from a common ancestor that was a four limbed vertebrate that walked (at least some of the time) on land. These animals have four limbs because their ance... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Mexican_mole_lizard",
"http://bio.davidson.edu/herpcons/herps_of_nc/salamanders/Sirlac/Sir_lac.html",
"https://en.wikipedia.org/wiki/Glass_lizard",
"https://en.wikipedia.org/wiki/Amphisbaenia",
"https://en.wikipedia.org/wiki/Moa",
"https://whatsinjohnsfreezer... | |
1nwtfg | Is there any solid evidence for a correlation between cold exposure and immunosuppression? | We all know that people tend to get colds more often in the winter than in the summer. I had always heard that it was a myth that cold weather makes your immune system more susceptible to infection ([1](_URL_1_), [2](_URL_0_), [3](_URL_3_)). However, I just read this paper ([4](_URL_2_)) which brought up some interes... | askscience | http://www.reddit.com/r/askscience/comments/1nwtfg/is_there_any_solid_evidence_for_a_correlation/ | {
"a_id": [
"ccmx2st",
"ccmysjw"
],
"score": [
3,
4
],
"text": [
"To provide some evolutionary context, including for non-human species: immunity takes energy (food calories). Energy, in turn, is limited, which means that organisms evolve to optimize the tradeoffs between energy devoted to... | [] | [
"http://www.ncbi.nlm.nih.gov/pubmed/8925815",
"http://www.jappl.org/content/87/2/699.full",
"http://www.ingentaconnect.com/content/iuatld/ijtld/2007/00000011/00000009/art00002?token=004913b4441383a4b3b25702a2b2f245a38592c3a464c2a726e2d2954496f642f466f2483",
"http://www.dtic.mil/dtic/tr/fulltext/u2/a411099.pdf... | [
[
"http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2435.2010.01753.x/abstract",
"https://ckm.osu.edu/sitetool/sites/neuroscience/documents/RandyPapers/2004/Trends.pdf",
"http://rstb.royalsocietypublishing.org/content/363/1490/321.full"
],
[]
] | |
1kcc24 | Why is there a vaccine for FIV (Feline immunodeficiency virus), but not HIV? | These answers seem to be very good, but I'm finding a hard time understanding them. Any chance of a TL;DR? | askscience | http://www.reddit.com/r/askscience/comments/1kcc24/why_is_there_a_vaccine_for_fiv_feline/ | {
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"score": [
9,
94,
4,
78,
19
],
"text": [
"There is questionable efficacy with that vaccine to begin with (also see the human \"Thai trial\" with HIV, which showed mild efficacy). And vaccines for a... | [] | [] | [
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/And_the_Band_Played_On",
"http://en.wikipedia.org/wiki/Don_Francis",
"http://www.youtube.com/watch?v=0LLxIJBrXdw"
]
] | |
ao0mvr | why does our vision not shake and wiggle like a video of say, someone mountain biking? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ao0mvr/eli5_why_does_our_vision_not_shake_and_wiggle/ | {
"a_id": [
"efxf752",
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"score": [
2,
2
],
"text": [
"Our eyes are constantly shifting and are able to move to maintain smooth vision while a bike camera is locked in place and bounces on a trail same as you feel while riding it",
"Our eyes compensate for movement without u... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Vestibulo%E2%80%93ocular_reflex",
"https://en.wikipedia.org/wiki/Fixation_reflex"
]
] | ||
2o5nyk | why do stores not sell cigarettes in smaller quantities than 20 in a pack? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2o5nyk/eli5_why_do_stores_not_sell_cigarettes_in_smaller/ | {
"a_id": [
"cmjx14a",
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"cmjxlo5",
"cmjxtrg",
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"cmjytr5",
"cmjz494",
"cmjzfbn",
"cmk08hh",
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"cmk0vxu",
"cmk0zft",
"cmk1266",
"cmk1rvv",
"cmk2c9z",
"cmk2fvc",
"c... | [] | [] | [
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"http://www.righttimeforprimetime.com/welcome.aspx?ReturnUrl=%2findex.html"
],
[],
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[],
[],
[],
[]
] | ||
zkdm6 | Electronically Speaking, How Does a Computer (or Calculator) Delete Stored Information? | Began wondering this after deleting some, um, *old vacation photos.* | askscience | http://www.reddit.com/r/askscience/comments/zkdm6/electronically_speaking_how_does_a_computer_or/ | {
"a_id": [
"c65ch2s",
"c65cyxo"
],
"score": [
4,
3
],
"text": [
"On a computer hard drive they don't really get removed, unless you take extra steps after hitting delete. The computer takes those files and tags them with a special character that says \"these files are not needed, do not d... | [] | [] | [
[],
[]
] | |
1krxs0 | since the efficient market hypothesis is widely accepted, how is high frequency trading profitable/viable? | I've read where HFT/algorithmic trading/automated trading accounts for a sizable portion of all trades that occur every day in the NYSE. The EMH states that, basically, all stocks are always fairly valued based on all available information. I understand it is indeed just a hypothesis, but the EMH is an Intro to Economi... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1krxs0/eli5_since_the_efficient_market_hypothesis_is/ | {
"a_id": [
"cbs15n3",
"cbs2apb",
"cbs3tol"
],
"score": [
3,
4,
5
],
"text": [
"In reality stocks are rarely fairly valued based on all available information. Hysteria, fear, and greed are can be even greater drivers than the fundamentals behind a company. That's part of why you'll... | [] | [] | [
[],
[],
[]
] | |
6bk8rl | Could a homeless person be drafted into the military during WWI, WWII (or any other war)? | I was reading about the "hobos" and was wondering if the USA or any other country drafted homeless person into the armed forces?
| AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6bk8rl/could_a_homeless_person_be_drafted_into_the/ | {
"a_id": [
"dhnubin"
],
"score": [
19
],
"text": [
"After the U.S. entry into World War II, defense spending and the number of jobs available in factories increased rapidly. Nearly full employment was achieved by 1944 (1.2% unemployment that year; this number did not count those \"underemployed,\... | [] | [] | [
[]
] | |
jhysm | If all viruses were effectively eradicated, how would that affect humans, ecosystems and other organisms? | I've seen an increasing amount of articles about this miracle cure that could kill any and all viruses. Although I am still very skeptical of the drug's capabilities, what would happen to earth's ecosystems if any and all viruses were removed from the face of our planet?
Are there organisms on earth that are mutually... | askscience | http://www.reddit.com/r/askscience/comments/jhysm/if_all_viruses_were_effectively_eradicated_how/ | {
"a_id": [
"c2c9skd",
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"c2cawlv",
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"score": [
7,
3,
2,
7,
3,
2
],
"text": [
"The most abundant form of viruses actually infects bacteria, not humans. Bacterial populations affect every living ecosystem on earth an... | [] | [] | [
[],
[],
[
"http://www.pnas.org/content/102/5/1702.short"
],
[],
[],
[
"http://www.pnas.org/content/102/5/1702.short"
]
] | |
22vcvq | how are the xbox one and playstation 4 able to allow players to start playing a game before it is fully updated or installed? | I've never seen any PC games that can update themselves in the background while playing, so why is this the case with the new consoles? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/22vcvq/eli5how_are_the_xbox_one_and_playstation_4_able/ | {
"a_id": [
"cgqqx74",
"cgqqx9c",
"cgqvz9v",
"cgqy7vd"
],
"score": [
3,
2,
2,
2
],
"text": [
"There are pc games that allow you to play while the rest of the game downloads one i can think off the top of my head is star craft 2. \n\nSimply put Say you have a SP game well th... | [] | [] | [
[],
[],
[],
[]
] | |
40l7dk | why in 2016 do cell phone cameras still have a better quality one on the back and a lower quality one facing you? would it really up the cost of the phone to just put 2 good cameras in it? | I realize you don't necessarily need 12MP to take pictures of yourself, but it seems like it would just be easier to slap 2 of the same camera in there. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/40l7dk/eli5_why_in_2016_do_cell_phone_cameras_still_have/ | {
"a_id": [
"cyv1k0r",
"cyv4e9u",
"cyv63qd",
"cyv9by7"
],
"score": [
79,
32,
7,
4
],
"text": [
"The front facing camera has to fit between the edge of the screen and the edge of the phone, and people like having the screen as large as possible, which means that the front fa... | [] | [] | [
[],
[],
[],
[]
] | |
1uk42p | how is slavery still a problem in the world today? | I came across this website earlier today that claimed there are still 29 million slaves around the globe (_URL_0_). I was astonished by the information the website had. However, I'm still not sure how slavery is still being used, why it is being used, and how people are not being caught participating in the slave trade... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1uk42p/eli5_how_is_slavery_still_a_problem_in_the_world/ | {
"a_id": [
"ceivoh3"
],
"score": [
2
],
"text": [
"A lot of it is forced labor instead of legal ownership. And a lot of it involves children. "
]
} | [] | [
"http://www.walkfree.org/learn/"
] | [
[]
] | |
bl010n | why is douglas macarthur so famous in the korean war? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bl010n/eli5_why_is_douglas_macarthur_so_famous_in_the/ | {
"a_id": [
"emkk07z",
"emkkyot",
"emkwo6p",
"emkwpx7"
],
"score": [
4,
4,
3,
2
],
"text": [
"His Island Hopping campaign strategy against the Japanese during WW2 was brilliant and was covered extensively by the press. He would simply bypass any strongly fortified Japanes... | [] | [] | [
[],
[],
[],
[]
] | ||
2htg15 | why is violence still exercised in wars between countries? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2htg15/eli5why_is_violence_still_exercised_in_wars/ | {
"a_id": [
"ckvu64e",
"ckvud6q"
],
"score": [
8,
5
],
"text": [
"Because that's what war is. Violence is the ultimate force; just like they say in starship troopers, \"the supreme authority from which all other authorities are derived\".",
"Wipe my ass. No?\n\nWipe my ass or I'll kill... | [] | [] | [
[],
[]
] | ||
3o6lt1 | How fast would a ball of steel 7 inches wide need to spin before centrifugal force destroys it? | Would it even do anything? | askscience | https://www.reddit.com/r/askscience/comments/3o6lt1/how_fast_would_a_ball_of_steel_7_inches_wide_need/ | {
"a_id": [
"cvv2fdu",
"cvvfgox"
],
"score": [
2,
3
],
"text": [
"2 types of sound waves in solids: transverse and longitudinal. Longitudinal waves generate compressive stress in both solids and fluids, meaning force is directed in the same direction as the wave travels (think a subwoofer)... | [] | [] | [
[
"https://en.m.wikipedia.org/wiki/Ehrenfest_paradox"
],
[
"http://m.wolframalpha.com/input/?i=sqrt%28+30000psi+*+8+%2F+%283%2B0.3%2F%281-0.3%29%29+%2F+7.9g%2Fcm%5E3+%2F+%283.5in%29%5E2",
"http://www.ewp.rpi.edu/hartford/~sarric/SMS/Readings/32669_04.pdf"
]
] | |
mcr59 | Where are amino acids found in the cell? | Do amino acids just float around in the cytosol until they're needed for protein synthesis? | askscience | http://www.reddit.com/r/askscience/comments/mcr59/where_are_amino_acids_found_in_the_cell/ | {
"a_id": [
"c2zvxi9",
"c2zvxi9"
],
"score": [
9,
9
],
"text": [
"Ill start from the beginning.\n\nAmino acids contain an amino group (NH2) and a carboxyl group (COOH), and a (H) group but they have 1 more group which vary in structure. In humans, we use 20 different kinds of amino acids ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Urea_cycle"
],
[
"http://en.wikipedia.org/wiki/Urea_cycle"
]
] | |
43d0bq | Is there a such thing as a subatomic particle with neither negative, positive or none? | Like a charge that acts as a combination of charges. e.g. 1 nanosecond could be positive & for a minute negative. Maybe in an hour have no charge? | askscience | https://www.reddit.com/r/askscience/comments/43d0bq/is_there_a_such_thing_as_a_subatomic_particle/ | {
"a_id": [
"czhpjuo"
],
"score": [
3
],
"text": [
" > Is there a such thing as a subatomic particle with neither negative, positive or none?\n\nThere's no physical difference between a particle with zero charge and a particle that has no charge, they are effectively the same condition.\n\n > Like... | [] | [] | [
[]
] | |
2pfat0 | why are eastern asians so successful compared to other minorities in america? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2pfat0/eli5_why_are_eastern_asians_so_successful/ | {
"a_id": [
"cmw52bs"
],
"score": [
2
],
"text": [
"Support network of friends and family that ties your sense of self worth to how much money you earn at respectable profession. "
]
} | [] | [] | [
[]
] | ||
41ay1j | off brand and store brand products. | Take mayo for example. I know every discount chain and grocery store chain doesn't have a kitchen churning out batches of mayo so they buy from a producer and private label. So is there one or two producers creating product for everyone or is it across the board with some shit coming from China or God knows where? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/41ay1j/eli5_off_brand_and_store_brand_products/ | {
"a_id": [
"cz0wsvr"
],
"score": [
3
],
"text": [
"It depends a bit on the product and the label, but it is not unheard of that a brand-name product and store-brand or no-name product come out of the same factory.\n\nSometimes different sore brands come from the same supplier that just switches o... | [] | [] | [
[]
] | |
1k4owc | the differences between types of milk. | First off, (and i know ill regret saying this) but, I've never drank a full glass of milk. Which is probably why I dont understand this. What makes people choose Half & half as opposed to regular or skim? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1k4owc/eli5_the_differences_between_types_of_milk/ | {
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"Generally, it is whatever you were raised with. Maybe personal taste would explain a twist, but generally you will stick with whatever you drank as a kid; basically, whatever your parents bought.\n\nHowever, no one drinks half and half straight. ... | [] | [] | [
[]
] | |
1fco2q | Why is space radiation a worrisome factor for traveling to Mars but isn't as much as an issue when our astronauts are up in the space station? | I've seen many articles addressing the main problem with attempting a mission to mars is the inability to protect the traveling astronauts from exposure to high levels of radiation. Why is it we can have astronauts travel to the space station and stay there for long periods of time without having to worry about this? I... | askscience | http://www.reddit.com/r/askscience/comments/1fco2q/why_is_space_radiation_a_worrisome_factor_for/ | {
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"ca91zte"
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"text": [
"The ISS is still within the Earth's magnetic field (it's only a few hundred km above the surface, whilst the Earth is 6,000km or so in radius), and so is protected from most radiation in the same way anyone on the surface is - although people on ... | [] | [] | [
[]
] | |
2xyepf | How accurately can the point in time when a species became extinct be determined? | The primary point I am asking about is whether the point in time when a species is last known to have appeared in the fossil record is presumed to have significant +/- error associated with it? Or is the span of geologic time involved such that, even with the low rate of fossilization, the error around when a species i... | askscience | http://www.reddit.com/r/askscience/comments/2xyepf/how_accurately_can_the_point_in_time_when_a/ | {
"a_id": [
"cp5n21a"
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"score": [
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"text": [
"You're right, we don't know exactly when the last individual of a species dies out. The fossil record is a (very useful) series of snapshots, and all we know when we find a fossil is that this creature lived at this time, based on the age of the ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Tiktaalik"
]
] | |
aql903 | Why do people store their pH probes in distilled water? | I have read that distilled water will strip the ions from the probe essentially causing them to be less effective over time yet every place I've ever worked has always kept the pH probes in distilled water when not in use.
Wouldn't it be better to store it in a solution with more ions rather than less? | askscience | https://www.reddit.com/r/askscience/comments/aql903/why_do_people_store_their_ph_probes_in_distilled/ | {
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"text": [
"You’re are correct that DI water will shorten the life of the electrode. It is recommended, atleast by a few manufacturers, to store it in 4M KCl solution or if that’s not available store it in pH 4 or 7 buffer",
"This i... | [] | [] | [
[],
[]
] | |
29c1ne | why aren't the muscles that move our jaw super muscular?(9 | We use them constantly
Edit: sorry about the title, don't know what happened there, also don't know why it's tagged nsfw
Thanks for all the replies!
It's answered, thank you all | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/29c1ne/eli5_why_arent_the_muscles_that_move_our_jaw/ | {
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"Why is this labeled with NSFW?",
"They are fairly muscular already, but what would be the point? We can already bite hard enough to ... | [] | [] | [
[],
[],
[],
[],
[
"http://en.m.wikipedia.org/wiki/Neoteny"
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88wd2w | Why do the Gospels place such a strong emphasis that Pontius Pilate is not responsible for the death of Christ, instead blaming the Jewish people? | My fiance and I were watching Jesus Christ Superstar, and we got around to discussing whether Pontius Pilate is guilty for the death of Christ.
I know from my Catholic upbringing that the Gospels largely either exonerate Pilate or state that he only relented when the crowd refused to yield, and thus the Gospels blame... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/88wd2w/why_do_the_gospels_place_such_a_strong_emphasis/ | {
"a_id": [
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"text": [
"**Matthew Chapter 27, verses 22\\-26**\n\n**^(22)** “What shall I do, then, with Jesus who is called the Messiah?” Pilate asked.\n\nThey all answered, “Crucify him!”\n\n**^(23)** “Why? What crime has he committed?” asked Pi... | [] | [] | [
[],
[]
] | |
7k8262 | How do "airless tires" work? | I get how the air pressure in an inflated tire can keep it from collapsing or deflating under the weight of a car, but how do airless tires manage to produce that much pressure without the use of air? | askscience | https://www.reddit.com/r/askscience/comments/7k8262/how_do_airless_tires_work/ | {
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"text": [
"Are you talking about that picture of a bicycle tire that was on the front page recently? There's nothing magical about airless tires compared to pneumatic tires. The support that pneumatic tires provid... | [] | [] | [
[],
[],
[
"http://mbyers.net/brain/wp-content/uploads/2012/10/tire-resiliant-02.jpg"
]
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qz96w | the mass effect controversy i've been seeing lately | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/qz96w/eli5_the_mass_effect_controversy_ive_been_seeing/ | {
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"text": [
"Please use the search, this has been asked almost daily. ",
"People wanted their choices to matter, but in the end all they got was different colored lights mo matter what they did and a buttload of... | [] | [] | [
[],
[],
[]
] | ||
1v8c9b | why do people occasionally take a much larger, deeper breath? | I've also realized both of my dogs do it as well. When I was young and I used to take naps with my mom, I would listen to her breathing patterns. After every 5 or so normal breaths, she would take a much deeper, larger one. Why does this happen? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1v8c9b/eli5_why_do_people_occasionally_take_a_much/ | {
"a_id": [
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"text": [
"The best theory is that sighs reset an imbalance in the respiratory system. Too much carbon dioxide building up triggers a large, deep breath to raise the oxygen level.",
"Your lungs are essentially a massively branched... | [] | [] | [
[],
[]
] | |
4sm3fl | Why were the German & Austrian Aristocracy dissolved after WWI? | Something to do with the Wiemar Republic, but I can't seem to find an explanation as to WHY these Nobilities were dissolved in 1919.
In England the Nobility and titles kept going, even to the present day. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4sm3fl/why_were_the_german_austrian_aristocracy/ | {
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"text": [
"German nobility wasn't exactly dissolved after WWI, at least not as completely as in Austria. What happened was the the Weimar Constitution in its article 109 said:\n\n > All Germans are equal in front of the law. In principle, men and women ha... | [] | [] | [
[
"http://www.zum.de/psm/weimar/weimar_vve.php#First%20Chapter%20:%20The%20Individual"
]
] | |
1mti6u | why a picture or video of a person looking directly into the camera lens appears to be making eye contact with anyone looking at the picture or video, but it's not the same with a live person. | I hope this makes sense! I was watching a video tonight where the person speaking was addressing the camera, so it looked (to me, and everyone else in the room) like they were addressing me (or everyone else in the room) specifically. However, if an actual person was speaking, he or she could only make eye contact with... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1mti6u/eli5_why_a_picture_or_video_of_a_person_looking/ | {
"a_id": [
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"text": [
"\nBecause \"you\" in this situation are the camera. When the speaker looks into the camera, he looks into what you would be seeing, as the viewer at that point. The cameras lens is a proxy for your eyes.",
"Video is two ... | [] | [] | [
[],
[]
] | |
1ulb9g | Has submarines ever been used in commercial transportation? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ulb9g/has_submarines_ever_been_used_in_commercial/ | {
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"text": [
"Submarines are not efficient modes of cargo transportation. Legal commercial operations stand nothing to gain from their use. Depending on your view of the ... | [] | [] | [
[
"http://mobile.nytimes.com/2012/09/10/world/americas/drug-smugglers-pose-underwater-challenge-in-caribbean.html"
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[],
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"http://www.reddit.com/r/AskHistorians/comments/1ue4yr/saturday_reading_and_research_january_04_2014/ceh75re"
],
[
"http://upload.wikimedia.org/wikipedia/commons/2/2d/Tho... | ||
mtvoo | Would a giant monster passing over us actually appear to be moving in slow motion? (The foot, or otherwise stepping over us.) | Like in any godzilla-esque movie or a movie like Ants, there are scenes where the camera follows the giant foot of the monster and it steps over the innocent city-goers or the giant hand swoops down. The monster is moving as it always is, at normal speed, but always appears to be in slow motion, why is this? Related to... | askscience | http://www.reddit.com/r/askscience/comments/mtvoo/would_a_giant_monster_passing_over_us_actually/ | {
"a_id": [
"c33uhjg",
"c33uhjg"
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"score": [
2,
2
],
"text": [
"Limb cycle frequency declines as body size increases. This means that small animals cycle their limbs quickly and large animals cycle their limbs quickly. Imagine an elephant cycling its limbs as quickly as a mouse. No way. ... | [] | [] | [
[],
[]
] | |
2izr5o | after staring at an inverted image that is changed to black and white, why does it appear to be in color? | From a post earlier someone shared this image in the comments. I'm wondering why this happens. _URL_0_ | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2izr5o/eli5_after_staring_at_an_inverted_image_that_is/ | {
"a_id": [
"cl702q8"
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"score": [
2
],
"text": [
"Staring at it temporarily burns the colors onto your retina. The colors burned on your retina, mix together with the colors after the picture changed to make a new color. The artist picked colors that afterwards would mix to make normal looking c... | [] | [
"https://i.imgur.com/QwMxc.jpg"
] | [
[]
] | |
2j8pxh | What is this?? - Ancient Script?? | _URL_0_
found this leather book in my fathers house. Looks interesting but is it really?
Help me out | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2j8pxh/what_is_this_ancient_script/ | {
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"cl9fn8s"
],
"score": [
4
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"text": [
"It looks like it might be [Coptic](_URL_0_), but not everything lines up as it might."
]
} | [] | [
"http://imgur.com/a/O1KgQ"
] | [
[
"http://en.wikipedia.org/wiki/Coptic_alphabet"
]
] | |
u2lk9 | What do red/green colorblind people see through nigh tvision goggles | I read a post explaining the reason you see green through night vision goggles is because the eye distinguishes the most greens. It got me wondering what colorblind people see through them. Or if the goggles are ineffective for those people. | askscience | http://www.reddit.com/r/askscience/comments/u2lk9/what_do_redgreen_colorblind_people_see_through/ | {
"a_id": [
"c4rs6td"
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"score": [
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"text": [
"Being colorblind doesn't mean that you are literally blind to colors. \nIt just means you cannot distinguish/name some colors. \nIf someone added a certain kind of red or brown to some parts of the night vision goggles' image, red/green colorbl... | [] | [] | [
[]
] | |
1bv6tc | "German" in German is Deutsch. The people in the Netherlands speak a similar but separate language, Dutch, which also refers to their culture/ethnicity. How did this similarity develop and where does it originate from? | 1. Realizing that there are some similarities between Germany and the Netherlands, how did the two cultures/languages develop and also maintain distinctions?
* In the same vain, how did the Netherlands (and Belgium as well I suppose) maintain distinctions from France or even England as well?
* What were the key works o... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1bv6tc/german_in_german_is_deutsch_the_people_in_the/ | {
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"I'm just going to answer the question you asked in your title and leave the three other qu... | [] | [] | [
[],
[],
[
"https://www.youtube.com/watch?v=sdtIZnNxy-s"
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[],
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"http://www.newscientist.com/article/mg21628941.700-war-of-words-the-language-paradox-explained.html?full=true"
],
[],
[
"http://www.nationsonline.org/maps/netherlands_map.jpg",
"http://klio.uoregon.edu/maps/kelly/Empir... | |
539tby | What became of Julius Caesar's son? (maybe his name was Caesarian?) | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/539tby/what_became_of_julius_caesars_son_maybe_his_name/ | {
"a_id": [
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"text": [
"The previous poster is sadly mistaken: Caesar had no confirmed sons. Octavian (later Augustus) was not Caesar's son, but his grand-nephew. Though he was adopted by Caesar in the latter's will and ostentatiously maintained a display of filial piet... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/4e4g3t/has_there_ever_been_evidence_to_prove_that/"
]
] | ||
9is03f | How does the ground level in cities rise over the centuries? | I understand that after wars or great fires the buildings are partially built on the rubble of their predecessors, but how can it be that the ground rises several meters? Garbage and rubble do not seem to me to be a suitable foundation.
& #x200B;
Thanks! | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9is03f/how_does_the_ground_level_in_cities_rise_over_the/ | {
"a_id": [
"e6lzhw6"
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"score": [
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],
"text": [
"Not to discourage further discussion, but this question has come up before, for instance, with [this answer](_URL_1_) by u/kookingpot and [this one](_URL_0_) by u/sunagainstgold."
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/7z6jdo/i_live_in_a_european_city_where_they_have_found/",
"https://www.reddit.com/r/AskHistorians/comments/4esjg3/why_are_modern_cities_ground_level_several_meters/"
]
] | |
5b8jjq | how does collecting rainwater work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5b8jjq/eli5_how_does_collecting_rainwater_work/ | {
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"Well I've done it for a long while. It's actually a bit of a process. I collect the water that runs off the house. bird crap and just general stuff like leaves runs into the gutter so I built a bit of a strainer and a small filter in the actual d... | [] | [] | [
[]
] | ||
b55q6k | If energy is never lost, how does the earth get rid of excess energy from the sun? | Why hasn’t the earth gotten so hot that life ceases to exist? What protects the earth from absorbing all energy it gets from the sun and holding on to it? | askscience | https://www.reddit.com/r/askscience/comments/b55q6k/if_energy_is_never_lost_how_does_the_earth_get/ | {
"a_id": [
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14,
4,
3
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"text": [
"Every object radiates energy in the form of electromagnetic radiation through a process called thermal radiation. The intensity and frequency distribution of thermal radiation depends on the temperatur... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Black-body_radiation"
],
[]
] | |
3mi0tk | A lot of pictures depict Joan of Arc clad in armor holding a sword, but did she actually have any considerable military training? | As above, was Joan of Arc (aged 19 when dead) actually trained in any real capacity in military leadership or combat before or during her contributions to the wars she was famous for (e.g. siege of orleans)? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3mi0tk/a_lot_of_pictures_depict_joan_of_arc_clad_in/ | {
"a_id": [
"cvf7lqq"
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"score": [
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"text": [
"So, this is a question that has been asked since literally the second day of Joan's (first) trial, February 22. The tl;dr is that Joan denies it repeatedly over the course of the questioning, but it still ends up being one of the formal article... | [] | [] | [
[
"http://www.marys-touch.com/Saints/joanofarc.JPG"
]
] | |
24kj54 | Is there a good, comprehensive history of the Franks? | I'm looking for a good history of the Franks, ranging at very least from the reign of Clovis (preferably before) to the reign of Charlemagne (preferably after). | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/24kj54/is_there_a_good_comprehensive_history_of_the/ | {
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"ch80wjc",
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4
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"text": [
"There is not a single good book, but there are a few good books that will get you from Clovis to Charles the Simple.\n\nIan Wood's *The Merovingian Kingdoms* is accessible, relatively short, and written by one of the most i... | [] | [] | [
[],
[]
] | |
al3lxj | why are first birthdays so important? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/al3lxj/eli5_why_are_first_birthdays_so_important/ | {
"a_id": [
"efadx0e",
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"score": [
3,
3,
2
],
"text": [
"Nothing. Parents are just excited because it's a first birthday party (first ever for their child). Imo they're pointless because the baby isn't going to remember any of that. To me, mom, dad and maybe ... | [] | [] | [
[],
[],
[]
] | ||
38p6jt | why is canned tuna dry when it has been soaking in water for days or even months? | Title. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/38p6jt/eli5why_is_canned_tuna_dry_when_it_has_been/ | {
"a_id": [
"crwpoei"
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"score": [
2
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"text": [
"Canned tuna in water is not dry; it's just very dense. If you open a can of tuna, drain it, and let it sit out for a while, you'll see how much drier it can be."
]
} | [] | [] | [
[]
] | |
lqk92 | li5: how a two-stroke and four-stroke engine works | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/lqk92/li5_how_a_twostroke_and_fourstroke_engine_works/ | {
"a_id": [
"c2usry2",
"c2usry2"
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"score": [
3,
3
],
"text": [
"[Here's](_URL_0_) an animation...\n\nand [here's](_URL_1_) another one. Read the articles if you don't get it. ",
"[Here's](_URL_0_) an animation...\n\nand [here's](_URL_1_) another one. Read the articles if you don't... | [] | [] | [
[
"http://science.howstuffworks.com/transport/engines-equipment/two-stroke2.htm",
"http://auto.howstuffworks.com/engine1.htm"
],
[
"http://science.howstuffworks.com/transport/engines-equipment/two-stroke2.htm",
"http://auto.howstuffworks.com/engine1.htm"
]
] | ||
21ni9r | why isn't carbon monoxide used for executions? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/21ni9r/eli5_why_isnt_carbon_monoxide_used_for_executions/ | {
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"cgesfcu",
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"cget7yt",
"cgetc17",
"cgetfia",
"cgetilk",
"cgetkti",
"cgetlbd",
"cgeto0d",
"c... | [] | [] | [
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"http://www.youtube.com/watch?v=vbAmu3DXk5c"
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[],
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"https://www.youtube.com/watch?v=vbAmu3DXk5c#t=2511",
"https://www.youtube.com/watch?v=vbAmu3DXk5c#t=2753"
],
[],
[
"http://news.bbc.co.uk/2/hi/7183957.stm"
],
[],
[],
[],
[
"http://... | ||
wn5xv | If both parents weren't overweight and obesity doesn't run in your family.. What are the chances an offspring will be obese ? | askscience | http://www.reddit.com/r/askscience/comments/wn5xv/if_both_parents_werent_overweight_and_obesity/ | {
"a_id": [
"c5eu7pu"
],
"score": [
2
],
"text": [
"It depends on the child's diet. Although he will have no predisposition to obesity, he can still become obese."
]
} | [] | [] | [
[]
] | ||
8vlrbw | why do shockwaves in the first few milliseconds warp what’s behind the blast? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8vlrbw/eli5_why_do_shockwaves_in_the_first_few/ | {
"a_id": [
"e1od07h"
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"score": [
3
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"text": [
"You see light through the air. If the air moves really fast, the light travelling through that medium get distorted.\n\nThis is what mirages are, hot air expanding and moving, and making the light shimmer with it. Explosions are the same, except ... | [] | [] | [
[]
] | ||
3m2xdk | What is the purpose of human ability to perceive and assess "beauty"? Talking about sounds, visuals and other senses. | The closest explanation I can come up with is our intrinsic preference for something 'harmonic'. But why some very natural things, animals are disgusting or revolting for us in their appearance, sounds or on touch?
P.S.: I could not choose between Biology and Psychology flairs, because it seems like a mix of both. | askscience | https://www.reddit.com/r/askscience/comments/3m2xdk/what_is_the_purpose_of_human_ability_to_perceive/ | {
"a_id": [
"cvbisq1"
],
"score": [
2
],
"text": [
"This does seem like it is both biological and psychological, but speaking biologically there is this funny thing about harmony in humans. \n\nIn studies where we have brought individuals together and had them produce music, harmonic melodies, c... | [] | [] | [
[]
] | |
11kfzz | Any recommendations for books/essays which would assist in the comprehension and writing of marxist historiography? | The pursuit of using marxism/historical materialism as an instrument to access the past interests me greatly. I am wondering where to begin, and if someone could point me towards some archetypical examples of marxist historiography. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/11kfzz/any_recommendations_for_booksessays_which_would/ | {
"a_id": [
"c6n8nof"
],
"score": [
4
],
"text": [
"Well the most obvious ones would be Hobsbawmn, Christopher Hill and EP Thompson (of The Making of the English Working Class fame). It may also be useful to read up on the British and Australian communist parties - not to mention continental Marxi... | [] | [] | [
[]
] | |
ovy0d | how do those rubber pads in urinals promote hygiene? | While taking a leak last night, I noticed that the rubber pad in the urinal said something about promoting hygiene. How do they do that, and why are they necessary? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/ovy0d/eli5_how_do_those_rubber_pads_in_urinals_promote/ | {
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"It is a screen for the urinal cake, so the cake doesn't get flushed and clog the drain. The urinal cake is there to disinfect and deodorize the urinal and pipes.",
"Ok so there are the [Urinal Cake ... | [] | [] | [
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"http... | |
cflbv0 | Nowadays a lot of people call some modern policies "fascist". When fascism first rose during the interwar years, did people draw any historical parallel to call them? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/cflbv0/nowadays_a_lot_of_people_call_some_modern/ | {
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"text": [
"Although focused on the person of Hitler more than the movement as a whole, I've written about the historical parallels and analogies of his rise so my older response which I'll repost here might be of interest for you.\n\n---------\n\nPrior to ... | [] | [] | [
[
"https://old.reddit.com/r/AskHistorians/comments/8r3e5x/i_am_gabriel_rosenfeld_professor_at_fairfield/"
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l5fe3 | Why does riding past things on a bike make a whoosh noise? | When I ride by lamp posts or trees there's a noticeable whooshing noise, but that doesn't exactly make sense to me. My guesses are that the object is blocking ambient noise briefly and that is the "whoosh". Or I'm pushing a pressure wave in front of me which gets disrupted by the pole and that ripple is what I'm hearin... | askscience | http://www.reddit.com/r/askscience/comments/l5fe3/why_does_riding_past_things_on_a_bike_make_a/ | {
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"text": [
"It's the sound of the bike reflected off of that object.\n",
"It's the sound of the bike reflected off of that object.\n"
]
} | [] | [] | [
[],
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] | |
69fpsb | when astronauts are in space, they experience weightlessness in "zero gravity." but, the earth's gravity is strong enough to hold satellites and the moon in orbit. so, what is zero gravity? why aren't astronauts bound to the closest surface by the earth's gravity but instead can float? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/69fpsb/eli5_when_astronauts_are_in_space_they_experience/ | {
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"https://www.youtube.com/watch?v=4aCMDQsx740"
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1cb03v | would guns work on a moon and in space, and why? | *the Moon | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1cb03v/eli5_would_guns_work_on_a_moon_and_in_space_and/ | {
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"text": [
"Gunpowder does not need air to explode. So yes, they will work. The gun feeding another bullet becomes iffy. A gun like a glock that works on the force of the slide and casing ge... | [] | [] | [
[],
[],
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"http://en.wikipedia.org/wiki/Thermos"
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8iq4g3 | if it’s so easy and cheap to get juice from a watermelon, why is it so rare to see in stores? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8iq4g3/eli5_if_its_so_easy_and_cheap_to_get_juice_from_a/ | {
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"It really just isnt that popular. Watermelon juice is honestly pretty bland. theres way more water than other popular juices and theres a lot less sugar. \n\nThis is why typically you see watermelon + something else juice... | [] | [] | [
[],
[]
] | ||
5apllv | How accurate is this medieval music? | _URL_0_
And if this is accurate, what year is this kind of music from and in what parts of europe was this kind of music listened to? Thanks! | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5apllv/how_accurate_is_this_medieval_music/ | {
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"Accuracy was not the Vox Vulgaris intent, nor was it achieved. There were a number of European bands who appeared in the 1990's doing medieval music with a lot of rock or heavy metal influence. I think it might have been started by the Germans:... | [] | [
"https://m.youtube.com/watch?v=xaRNvJLKP1E"
] | [
[
"https://www.youtube.com/watch?v=ZoxO8Gse5os",
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2hmxor | why do people like to say "follow your heart" or "i prefer taking actions listening to my heart over brain" ? why is emotions related to heart ? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2hmxor/eli5_why_do_people_like_to_say_follow_your_heart/ | {
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"Before we understood that all emotions are created in the brain, the heart was long thought to be the center of human emotion, and in some religions/cultures, the location of the soul. It makes sense; the heart is a vital o... | [] | [] | [
[],
[
"http://www.psychologytoday.com/blog/the-athletes-way/201405/how-does-the-vagus-nerve-convey-gut-instincts-the-brain"
]
] | ||
5nma0y | hunting seasons | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5nma0y/eli5_hunting_seasons/ | {
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"text": [
"With many animals in designated wildlife areas, the population needs to be controlled to prevent over population which would be very damaging to them. Less food available, overcrowding, etc. So during a time of year when the animals aren't reprod... | [] | [] | [
[]
] | ||
20vrl3 | what is the difference between fruits, vegetables, and herbs? | Did some searching on the internet, but there doesn't seem to be clear distinctions. Maybe it's because legal, culinary, and scientific circles have different definitions? As an example: What are bananas? I've read both fruit and herb. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/20vrl3/eli5_what_is_the_difference_between_fruits/ | {
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"text": [
"A fruit is the (often sweet) portion of a plant which contains a seed inside. Oranges? They have seeds inside and are therefore fruits. Apples? Same. Bananas, as you requested, technically have seeds inside so they are ... | [] | [] | [
[],
[]
] | |
1bag24 | why does fat splatter when you cook it? | Does it have to do with moisture content, or does it have some sort of higher potential energy content?
| explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1bag24/why_does_fat_splatter_when_you_cook_it/ | {
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"text": [
"Oil has a higher vapor point than water, which means water will flash to steam and splatter liquid oil before the oil would boil."
]
} | [] | [] | [
[]
] | |
23l35i | if we know chemical composition of some edible/drinkable item (e.g. milk), why can't we make it in factories? | ELI5: If we know chemical composition of some edible/drinkable item (e.g. milk), why can't we make it in factories? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/23l35i/eli5_if_we_know_chemical_composition_of_some/ | {
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"Just knowing the chemical composition of something doesn't mean we magically know how to synthesize it in a lab. It takes a lot of effort to create a process that can synthesize something, and do it in ... | [] | [] | [
[],
[],
[]
] | |
1qrbwe | What are the chances meteorites hit satellites and space stations? | Or on mars, with no atmosphere what are the odds a meteorite will hit the rover and destroy it?
Is this risk something they consider? Or is it too rare to care about?
Regarding satellites and space stations, surely taking damage from them isn't that rare! | askscience | http://www.reddit.com/r/askscience/comments/1qrbwe/what_are_the_chances_meteorites_hit_satellites/ | {
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"text": [
"Let's look at the math. The surface of a sphere with the same radius the orbit of a satelite (I assume about r=7000km) is 4*pi*r^2, so 6.15e8 km^2 = 6.15e14m^2. Assuming 10.000 satelites in orbit and one having a cross section of about 10m^2, we ... | [] | [] | [
[]
] | |
2nokne | AskScience now has 4,000,000 subscribers! Here's some science-y stuff! | ##[We've made inanimate digital attractions so ***astounding*** that they'll capture the imagination of the entire planet.](_URL_16_)
###Here's some of our biggest and bestest threads for the past few months:
* [The Philae lander has successfully landed on comet 67P/Churyumov–Gerasimenko. AskScience Megathread.](_... | askscience | http://www.reddit.com/r/askscience/comments/2nokne/askscience_now_has_4000000_subscribers_heres_some/ | {
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"http://www.lpi.usra.edu/resources/mapcatalog/usgs/I703/",
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oktpu | Can I administer myself a placebo? | askscience | http://www.reddit.com/r/askscience/comments/oktpu/can_i_administer_myself_a_placebo/ | {
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"text": [
"For some good explanations about the placebo (and the lesser known Nocebo) effect Ben Goldacre has done a [few good talks](_URL_0_) on it. Our knowledge of how it works is limited, but its based on social and cultural press... | [] | [] | [
[
"http://www.badscience.net/2010/04/placebo-nocebo/"
],
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1dgcv7 | what does meta and alpha mean? | I often hear "that's so meta" or "SO ALPHA" thrown around on reddit. What do they mean? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1dgcv7/eli5_what_does_meta_and_alpha_mean/ | {
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"Alpha pretty much is meant to imply that whoever said it is great/dominant (hence alpha, as in like a pack leader). It's usually said when talking about confidence or suaveness with women, like \"Just g... | [] | [] | [
[],
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"http://well.com",
"well.com/flame.ind",
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vuvm4 | Is it better to always close the fridge, or leave it open for the ~5-10 seconds it might take me to pour a glass of milk? | Whenever I get a drink I usually leave the door open for 5-10 seconds, and if anyone is around I typically get bitched at for it. I figure that when I only leave it open for a short period of time it might even be better than opening and closing the door twice as doing so pulls/pushes a lot of air. | askscience | http://www.reddit.com/r/askscience/comments/vuvm4/is_it_better_to_always_close_the_fridge_or_leave/ | {
"a_id": [
"c57ur1m",
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"score": [
3,
3
],
"text": [
"Ultimately it shouldn't make much of a difference. The air inside your fridge has much less heat capacity than the walls and food inside. Just because you've \"let out all the cold air\" doesn't mean you've allowed in a sig... | [] | [] | [
[],
[]
] | |
bjf8pn | how is gdp of a country calculated? why is it in small percentages, like 2.5% maybe? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bjf8pn/eli5_how_is_gdp_of_a_country_calculated_why_is_it/ | {
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"text": [
"The GDP is the total amount of money spent in a country (or amount gained in income, as they are hypothetically equal). It equates to government spending + consumer spending + investment spending + net exports (i.e. exports ... | [] | [] | [
[],
[]
] | ||
1obwzs | ; why does our body not have a method to prevent or remove ingrown toenails? | They hurt, and in extreme cases can even cause infections and impair movement. to my mind at least it makes sense to have SOMETHING that can do this. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1obwzs/eli5_why_does_our_body_not_have_a_method_to/ | {
"a_id": [
"ccqkv1w",
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"score": [
3,
3
],
"text": [
"We used to not protect our feet in hardened artificial shells. Shoes are a recent invention in terms of evolutionary timelines. Toenailes would chip and break long before ingrown nails would become a problem, in most cases."... | [] | [] | [
[],
[]
] | |
17djje | what is "unlocking" your smartphone? what is it now illegal and punishable by up to a $1 million fine? | Apparently this became law this weekend in the US. I hear a lot about "switching carriers" but don't know what this means in the context of this law. If anyone could explain why this law came about and what it means to unlock your smartphone, I'd really appreciate it. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/17djje/eli5_what_is_unlocking_your_smartphone_what_is_it/ | {
"a_id": [
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3
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"text": [
"Phones provided by service providers are usually locked by their firmware into only working on that provider's network. Unlocking disables that so the phone can be used on any network.",
"The reason that carriers were u... | [] | [] | [
[],
[]
] | |
ecshn8 | Why does no one live in Antarctica? | know this may come off as ignorant but seriously why?
People may first and foremost argue that you can't grow crops there=no one wants to live there but there are so many places where people live where crops can't be grown.
Svalbard, places in the middle east such as Dubai, Artic circle. Nothing stopped people from l... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/ecshn8/why_does_no_one_live_in_antarctica/ | {
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"text": [
"It isn't just distance; Antarctica is surrounded by the harshest seas on planet Earth. The latitudes above Antarctica (aka, the Southern Ocean) are sometimes called the Roaring Forties, the Furious Fi... | [] | [
"https://en.wikipedia.org/wiki/Ui-te-Rangiora"
] | [
[],
[
"https://youtu.be/zKNv0zWENlc"
],
[]
] | |
2hvvts | How do bacteria cause enteric diseases despite having to go through the stomach? | Bacteria like Salmonella and Shigella are responsible for numerous gastrointestinal diseases but how do they get past the stomach? Is it a relatively easy process to survive the stomach acids?
I'm just asking because it was initially believed impossible for bacteria to survive in the stomach, which made the discovery... | askscience | http://www.reddit.com/r/askscience/comments/2hvvts/how_do_bacteria_cause_enteric_diseases_despite/ | {
"a_id": [
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"text": [
"You are correct, in that Salmonella can not survive the low pH of the stomach (~2), under normal conditions. This puzzled researches for a long time. However, in 1998 [Scott Waterman and P. Small](_URL_0_) conducted a study,... | [] | [] | [
[
"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC106573/",
"http://www.ncbi.nlm.nih.gov/pubmed/20453931"
],
[
"http://books.google.com/books/about/Stress_Response_in_Pathogenic_Bacteria.html?id=ixDDwBUuL_IC"
]
] | |
fe7b5x | How does protein incorporate into your muscle tissue? | [deleted] | askscience | https://www.reddit.com/r/askscience/comments/fe7b5x/how_does_protein_incorporate_into_your_muscle/ | {
"a_id": [
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3
],
"text": [
"Amino acids are the building blocks of all tissue, including muscles. Through three-letter sections, your dna encodes for all the amino acids and, after being transcribed to RNA, your rna is read and t... | [] | [] | [
[],
[],
[]
] | |
1n9lj4 | What did ancient historians think of historians? | What did historians think of their own profession, or of the importance of documenting history? Did they consider it absolutely important solely for the education of their civilization, or did they look far into the future from a global perspective? Or was it simply that kings and emperors hired them to document their ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1n9lj4/what_did_ancient_historians_think_of_historians/ | {
"a_id": [
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"text": [
"This is a marvelous, spectacular question, and I honestly am truly sorry that it didn't get the attention that it deserves. So I'll try to go a bit overboard, even for me :) When I read this question, I immediately had one ... | [] | [] | [
[
"http://mcadams.posc.mu.edu/txt/ah/Livy/Livy01.html"
],
[
"https://en.wikipedia.org/wiki/File:Anaximander_world_map-en.svg",
"http://www.historytoday.com/irene-brown/historian-philosopher-herodotus-and-strength-freedom"
]
] | |
rctle | classical vs. operant conditioning | I don't understand how the reinforcement behavior of Operant conditioning is different from the behavior resulting from classically conditioned events. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/rctle/eli5_classical_vs_operant_conditioning/ | {
"a_id": [
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"text": [
"Classical Conditioning: There's an unconditioned stimulus-- in Pavlov's case, this was the smell of meat to the dog. With the unconditioned stimulus comes an unconditioned response-- the dog salivates.\n\nIn Classical Condit... | [] | [] | [
[],
[]
] | |
d15bvn | how does electricity distribution works? | If I have some solar panels and I supply to the grid, i get paid. But how does the electricity from my solar panel reaches someone's home? How does the circuit work in this case? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d15bvn/eli5_how_does_electricity_distribution_works/ | {
"a_id": [
"ezhky1e"
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"score": [
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"text": [
"Each group of 8-10 houses is a branch in the electric tree. Your branch has a transformer that connects you with a feed line. This transformer also isolates your branch, so that if there is a short only one branch goes out.\n\nYour transformer ... | [] | [] | [
[]
] | |
2iagom | what are the procedures if a supervolcano were to erupt? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2iagom/eli5_what_are_the_procedures_if_a_supervolcano/ | {
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11,
4
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"text": [
"A supervolcanic eruption is a historically unprecedented event, so there's no official procedure anywhere, at least that I'm aware of. I imagine most countries follow some sort of flight safety code th... | [] | [] | [
[
"http://www.skybrary.aero/index.php/Volcanic_Ash"
],
[],
[]
] | ||
s55zo | Why don't all animals require the same nutrients? | If a human chooses to be vegan, he or she must supplement his or her diet with vitamins (most notably B-12) in order to by completely "healthy". How is it then that other animals, other mammals even, are able to survive and be healthy living on diets vastly different than ours? | askscience | http://www.reddit.com/r/askscience/comments/s55zo/why_dont_all_animals_require_the_same_nutrients/ | {
"a_id": [
"c4bca5m"
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"score": [
3
],
"text": [
"In the simplest terms, different animals have different digestive systems and the ability to extract nutrients in different ways. It pretty much comes down to differences in anatomy (what the gut looks like) and enzymatic activity (whether they h... | [] | [] | [
[]
] | |
aq1m7n | [Fluid dynamics] Why are turbulent fluids easier to travel through than still or calm fluids? | I've noticed while surfing that when I paddle my hand moves much more easily through turbulent whitewater as compared to calm water. This makes it so that while I'm paddling in turbulent water I feel like my efforts are no where near as effective in moving me forward.
I'm also aware of the fact that driving unsafely c... | askscience | https://www.reddit.com/r/askscience/comments/aq1m7n/fluid_dynamics_why_are_turbulent_fluids_easier_to/ | {
"a_id": [
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2
],
"text": [
"I don't know about the effect of turbulence, but your observations with whitewater can be explained by the fact that whitewater contains a large percentage of air bubbles so there is less mass for your hand to push off of. ... | [] | [] | [
[],
[
"https://m.youtube.com/watch?v=E9ZSAX56m0E"
]
] | |
4dhxkd | how come green has turned out to be the colour of toxic waste and foul smelling gas in comics/cartoons? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4dhxkd/eli5_how_come_green_has_turned_out_to_be_the/ | {
"a_id": [
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"text": [
"Just a wild guess, but it's probably because it's often glowing in the comics, and the glowing radioactive materials most people are familiar with are those glow-in-the-dark paints, which are green. \n\n_URL_0_",
"Well w... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Luminous_paint#Radioluminescent_paint"
],
[]
] | ||
k72k0 | My moon base is almost complete. One final thing though: How much space do I need to set aside for plants to generate enough oxygen for one person? | I'd like to keep it as small as possible, as my robot diggers don't work very fast.
Are there any particular plants that would work better than others? I'll fill it with air when I get there, so they just have to recycle my own CO2. | askscience | http://www.reddit.com/r/askscience/comments/k72k0/my_moon_base_is_almost_complete_one_final_thing/ | {
"a_id": [
"c2hzroz",
"c2i1wco",
"c2i8ghk",
"c2hzroz",
"c2i1wco",
"c2i8ghk"
],
"score": [
5,
9,
2,
5,
9,
2
],
"text": [
"Here you go, it is a list of house plants that NASA studied for cleaning the air in your typical home. They aren't exactly air recycling... | [] | [] | [
[
"http://www.extension.umn.edu/yardandgarden/ygbriefs/h110indoorair.html",
"http://www.ted.com/talks/kamal_meattle_on_how_to_grow_your_own_fresh_air.html"
],
[],
[
"http://www.amazon.com/Human-Spaceflight-Mission-Analysis-Technology/dp/007236811X"
],
[
"http://www.extension.umn.edu/yardan... | |
38vzdc | Did cavalry really charge like they do in the movies? (LOTR and other medieval themed movies) | It just seems really unwise to me. Horses are weak and vulnerable. If you put a sword through a horse, the horse will fall and the horseman with it, leaving the horseman in a very bad position. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/38vzdc/did_cavalry_really_charge_like_they_do_in_the/ | {
"a_id": [
"cryg2d3"
],
"score": [
15
],
"text": [
"Horses are *weak* and vulnerable?!?! Are you thinking of the ponies at the petting zoo?\n\nThe charge at the gallop is the basis of all modern cavalry attacks (post-1650) and it is well-attested. Whether or not it looks to you like it would fail... | [] | [] | [
[
"http://www.amazon.com/Weapons-Warfare-Renaissance-Europe-Technology/dp/0801869943/ref=sr_1_1?ie=UTF8&qid=1433689409&sr=8-1&keywords=Hall+Weapons+%26+Warfare+in+Renaissance+Europe",
"http://www.amazon.com/Medieval-Warhorse-Byzantium-Crusades-Military/dp/0938289845/ref=sr_1_2?ie=UTF8&qid=14... | |
bomtru | What is the smallest change in color humans can detect and what is the limiting factor to it being smaller? | askscience | https://www.reddit.com/r/askscience/comments/bomtru/what_is_the_smallest_change_in_color_humans_can/ | {
"a_id": [
"enivfkx",
"enlxpr0"
],
"score": [
14,
8
],
"text": [
"It is called a [Just Noticeable Difference](_URL_0_) and it is a statistical difference established under controlled testing. A [MacAdam Ellipse](_URL_2_) is a region on a chromaticity diagram which consists of colors which... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Just-noticeable_difference",
"http://www.lagom.nl/lcd-test/black.php",
"https://en.wikipedia.org/wiki/MacAdam_ellipse"
],
[]
] | ||
t3lf3 | how a programming language is used to create a graphics engine for a video game? | To be more specific i want to know how graphics in video games come to be. I know they use a graphics engine, but how do you type in syntax of a certain programming language and then it displays a city or a gun? Im very confused on the matter? I assume you use some type of mathematical equation maybe? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/t3lf3/eli5_how_a_programming_language_is_used_to_create/ | {
"a_id": [
"c4j92bz"
],
"score": [
5
],
"text": [
"Objects in games are usually modeled by a set of data. You can imagine that as a big file that lists all the different triangles that are used to create the object. It's kind of like an architectural blueprint.\n\nThe graphics engine reads thos... | [] | [] | [
[]
] | |
dvu77s | "Midway" megathread: The Battle of Midway and turning the tide in the Pacific | Hello everyone!
With the release of '[Midway](_URL_0_)' this week, we figured people may have questions about the real-life battle that has loomed large in the mythology of World War II ever since. So we thought we'd create this thread for questions about the battle, the run-up to it, and the early Pacific war in gene... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dvu77s/midway_megathread_the_battle_of_midway_and/ | {
"a_id": [
"f7eqgh4",
"f7ericc",
"f7essj6",
"f7esukq",
"f7eug4g",
"f7exbv1",
"f7f1ftl",
"f7f47ku",
"f7f4zqu",
"f7f5tg1",
"f7f6zck",
"f7fip2b",
"f7fj4i8",
"f7fploa",
"f7fuag4",
"f7fzius",
"f7gxmvp",
"f7igr9z"
],
"score": [
20,
35,
... | [] | [
"https://www.imdb.com/title/tt6924650/",
"https://www.reddit.com/r/AskHistorians/comments/dvsidw/richard_bestoxygen_tanks_in_wwii/"
] | [
[],
[
"https://www.reddit.com/r/AskHistorians/comments/dvsidw/richard_bestoxygen_tanks_in_wwii/"
],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[]
] | |
1smdxa | why can some websites not produce a comma/apostrophe and it only shows up as �? | I've been to a few websites that have this problem and it isn't really a problem, but I just wonder why "�" exists. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1smdxa/eli5_why_can_some_websites_not_produce_a/ | {
"a_id": [
"cdz0gdp",
"cdz9r35"
],
"score": [
3,
2
],
"text": [
"This comes down to character set encoding.\nLet's break it down\n\n1. The website you are on has text stored using a specific character set (the most common is UTF-8)\n2. When a webpage loads, the site should tell you what... | [] | [] | [
[],
[]
] | |
171gjh | Could a light beam stop entirely if shined at the ergosurface of a black hole in the right way? | If I were to shine a flashlight tangential to the stationary limit surface of a black hole anti-spinward and along its equator, would the light beam appear stop at a point on the surface? Wikipedia seems to support this idea: "At the stationary limit, objects moving counter spinward at the speed of light are stationary... | askscience | http://www.reddit.com/r/askscience/comments/171gjh/could_a_light_beam_stop_entirely_if_shined_at_the/ | {
"a_id": [
"c81e3js",
"c81fr1b"
],
"score": [
7,
2
],
"text": [
"I think you're refering to this\n\n > The outer limit of the ergosphere is called the stationary limit or static limit. At the stationary limit, objects moving counter spinward at the speed of light are stationary with respe... | [] | [] | [
[],
[
"http://www.physics.nus.edu.sg/~phyteoe/kerr/paper.pdf"
]
] | |
1kpxk0 | How did the German military go from weak to almost taking over Europe in WWII? And Is it possible that a country like Iran could do the same? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1kpxk0/how_did_the_german_military_go_from_weak_to/ | {
"a_id": [
"cbrk8tl",
"cbrmw83",
"cbrovi6"
],
"score": [
5,
2,
5
],
"text": [
"On the Iran side of your question:\n\nDue to the invention of the atomic bomb 'total war style' conflicts between advanced nations have become senseless. The end results will always be total destruction... | [] | [] | [
[],
[],
[]
] | ||
c45do4 | What makes water different? | I’ve been asking myself that question long time back and i am not going anywhere why does water expand once it freezes and decrease in size once it’s heated unlike all other elements? ‘ | askscience | https://www.reddit.com/r/askscience/comments/c45do4/what_makes_water_different/ | {
"a_id": [
"erv1rla",
"erv3sdm",
"ervev3n"
],
"score": [
12,
2,
9
],
"text": [
"Because water is such a small molecule, in liquid form it \"stacks\" in a very dense configuration. The well ordered crystalline structure of ice takes up more volume. \n\n_URL_0_",
" > unlike all ... | [] | [] | [
[
"https://lh3.googleusercontent.com/-DJGwXk7Zv8U/VnFQy3rcKpI/AAAAAAAAAQs/C8tsSMRycVo/s800-Ic42/structure%252520of%252520molecules.PNG"
],
[
"https://en.wikipedia.org/wiki/Antimony",
"https://en.wikipedia.org/wiki/Germanium",
"http://en.wikipedia.org/Properties_of_Water",
"https://en.wikiped... | |
3ya7s1 | How did the Persian Empire destroy the Babylonian Empire? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3ya7s1/how_did_the_persian_empire_destroy_the_babylonian/ | {
"a_id": [
"cybw408"
],
"score": [
32
],
"text": [
"Ugh, I accidentally deleted a fairly long post contextualizing this, so this will be a bit briefer:\n\nIt is a little unclear, which is actually fairly common in Mesopotamian history because narrative historical data tends to come from highly ce... | [] | [] | [
[]
] |
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