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 |
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37zcsv | why aren't 1 and 0 assigned letters of the alphabet on a telephone? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/37zcsv/eli5_why_arent_1_and_0_assigned_letters_of_the/ | {
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"Because they have or had special significance for the telephone system. Zero was used to dial the operator, and 1 was the long-distance call code. You couldn't use them at the beginning of a dial sequence as pressing 0 would ring the operator an... | [] | [] | [
[]
] | ||
21s52r | how do i work out the valency of a chemical formula? | For example, Mg3Al2(SiO4)3
And I want to work out the valency of manganese in this particular formula. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/21s52r/eli5_how_do_i_work_out_the_valency_of_a_chemical/ | {
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"text": [
"Before we get started, that's Magnesium, rather than Manganese, which would be Mn.\n\nOkay, so the first thing to notice is that in this particular formula, there are several sub-parts - the Mg3Al2 part and the SiO4 parts. These are two ions whic... | [] | [] | [
[]
] | |
2blt34 | why do i need noise cancellation headphones, when i can use any decent headphones and turn on the volume to avoid outside noise? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2blt34/eli5why_do_i_need_noise_cancellation_headphones/ | {
"a_id": [
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"score": [
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"text": [
"Noise cancellation do what they say, cancel outside noise. So, you don't need to raise your volume so much that it could damage your ears.\n\nLook up: Ear damage from earphones."
]
} | [] | [] | [
[]
] | ||
5wirra | What is the 'corn' Caesar refers to in his Commentaries on the Gallic War? | My understanding is that corn, or maize, existed solely on the American continents up until the 15th century and the arrival of European explorers. But Caesar refers constantly to securing a supply of "corn" for his troops. Does the word have another meaning in this context, perhaps just a generic term for food? What f... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5wirra/what_is_the_corn_caesar_refers_to_in_his/ | {
"a_id": [
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"text": [
"Caesar is likely using the Latin word \"frumento\" or perhaps its plural, \"frumenti,\" to refer to wheat or another grain crop. If you're reading a British translation of Caesar, they're most likely using \"corn\" in the British sense for a sta... | [] | [] | [
[]
] | |
159wkk | What benefits does resting without sleep have? | askscience | http://www.reddit.com/r/askscience/comments/159wkk/what_benefits_does_resting_without_sleep_have/ | {
"a_id": [
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"Actually, naps are incredibly beneficial. The body has a sleep cycle which goes through 3 stages (previously 4) called Non-REM Sleep + REM sleep (when you're dreaming). The first two stages are really light sleep - in fact if you're woken up from... | [] | [] | [
[]
] | ||
53wt7l | How was France able to afford an army conquer Europe during the french revolution if it was so poor? | I would guess that during the French revolution France was so poor and miserable that the people revolted and started the french revolution.
WHat I don't understand is how were they able to afford to have and supply the Grand Army commanded by Napoleon? A poor empire I would assume wouldn't be able to afford the most... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/53wt7l/how_was_france_able_to_afford_an_army_conquer/ | {
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"text": [
"Several reasons:\n\n1) France wasn't necessarily poor: the French *government* was because it had problems generating revenue since that required them to increase taxation on the nobility, who had a large degree of immunit... | [] | [] | [
[],
[
"http://www.reddit.com/r/askhistorians/comments/2akzlh/_/ciw8z2l"
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1t9eqk | How much do we now know about the Kingdom of Zimbabwe? Is this an active area of study? | As I grew up in what was then Rhodesia the history we were taught about Great Zimbabwe in particular was heavily censored at the time. Maybe this is why I find the idea of an Iron Age African Kingdom with established trade routes so fascinating, and I'd love to know more than what I've read on Wikipedia.
I understand ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1t9eqk/how_much_do_we_now_know_about_the_kingdom_of/ | {
"a_id": [
"ce5sk3a",
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"score": [
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"text": [
"Here is a BBC documentary from 2010 on this very subject, part of the 'Lost Kingdoms of Africa' series. \n\n_URL_0_\n\nThe whole series is worth watching in full. \n\nIncidentally Great Zimbabwe was the subject of the very ... | [] | [] | [
[
"http://www.youtube.com/watch?v=OTVShn1vKV0"
],
[]
] | |
6qg9rt | Members of the German Royal Houses who served in WWII | I know that Prince Wilhelm of Prussia served in the Wehrmacht during the invasion of France in 1940 and died during the invasion itself, the reaction by the public following his death was enough to spook the German government into banning members of the Royal Houses (Prince Law?) from serving in the Wehrmacht from 1940... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6qg9rt/members_of_the_german_royal_houses_who_served_in/ | {
"a_id": [
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"text": [
"Wasn't \"Wehrmacht\", the general name of the german military under the 3rd Reich? Meaning that if the members of the royal houses were barred from joining the Wehrmacht after the 1940 law, it effectively meant they couldn't join the army (Heer),... | [] | [] | [
[]
] | |
4un98q | Is it possible for a planet to have mountainous terrain that extends past the troposphere? | The highest terrain on Earth is Mount Everest, at 8.848km and the troposphere ends at about 12km. Could continuing plate action over millions more years cause Everest and the rest of the Himalayas to extend past the troposphere or even further? Has any planet been observed with such characteristics? | askscience | https://www.reddit.com/r/askscience/comments/4un98q/is_it_possible_for_a_planet_to_have_mountainous/ | {
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"text": [
"From a [related question](_URL_1_) about the tallest possible mountain three years ago by /u/cuddlebadger:\n\n > The tallest possible mountain on Earth is probably around the size of Mount Everest. The... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Isostasy",
"https://www.reddit.com/r/askscience/comments/174cxr/how_high_was_the_highest_mountain_ever_on_earth/"
],
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"https://en.wikipedia.org/wiki/Olympus_Mons#cite_note-Plescia04-5",
"http://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html"
],
[
"... | |
9rpdoj | Why do the noble gases change the way our voices sound? | askscience | https://www.reddit.com/r/askscience/comments/9rpdoj/why_do_the_noble_gases_change_the_way_our_voices/ | {
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"text": [
"Any gas that is less dense or more dense than the atmosphere will cause sound waves in your mouth to move faster or slower (respectively), making your voice higher or lower pitched (respectively). \n\nNoble gasses are just the safest to do this ... | [] | [] | [
[]
] | ||
2abi9t | why fast food outlets like mcdonalds and subway have to display nutritional information but my local burger/sandwhich place doesn't. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2abi9t/eli5_why_fast_food_outlets_like_mcdonalds_and/ | {
"a_id": [
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"score": [
60,
6,
2
],
"text": [
"The law requiring calorie counts to be posted states that it only applies to restaurants with at least 20 locations. Other laws related to nutrition have their own conditions that apply specifically t... | [] | [] | [
[],
[],
[]
] | ||
18stgk | Idea on Black holes and origin of the Universe. | askscience | http://www.reddit.com/r/askscience/comments/18stgk/idea_on_black_holes_and_origin_of_the_universe/ | {
"a_id": [
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"text": [
"According to our current knowledge, there's something called dark energy that's actually pushing stronger than the collective gravitational pull that would cause a big crunch. The universe is expanding, and the rate at which... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Hawking_radiation"
]
] | ||
1aq2e7 | why some games absolutely hate being alt+tabbed out (tf2, civ v, skyrim, etc.) while other games don't seem to be bothered by it (wow, diablo 3, dishonored, etc.) | Sub-question: Why do you think the windowed fullscreen mode, as in WoW, isn't embraced by other games?
edit: Thanks for the explanations, everyone! Been wondering this forever. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1aq2e7/eli5_why_some_games_absolutely_hate_being/ | {
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... | [] | [] | [
[],
[],
[],
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"http://forums.steampowered.com/forums/showthread.php?t=1929378"
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4l027d | why time theoretically stops at the speed of light | Also, do objects travelling at the speed of light simply perceive other things around it as not moving? Or does time literally pass slower for these objects? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4l027d/eli5why_time_theoretically_stops_at_the_speed_of/ | {
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"I don't know that it's accurate to say \"time stops.\" There is no perspective of time for an object moving at the speed of light. If you do the math we have now, you wind up wit... | [] | [] | [
[],
[],
[],
[]
] | |
3amv19 | Why doesn't the body break down drugs like caffeine during digestion before they reach the blood stream? | askscience | http://www.reddit.com/r/askscience/comments/3amv19/why_doesnt_the_body_break_down_drugs_like/ | {
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"text": [
"Two reasons: \n\n* the absorption rate/location of the drug\n* the metabolism rate/location of the drug.\n\n-\nI'll use caffeine as the example, per your request. Caffeine is absorbed into the blood stream from your mouth, t... | [] | [] | [
[],
[]
] | ||
3qqih2 | if there is a laser razor, then aren't we not that far off from laser hand held weaponry? | If human hair has the same strength as copper, and something the size of a safety razor is able to cut through it, then aren't we pretty close to having lazer guns that can damage people?
_URL_0_ | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3qqih2/eli5_if_there_is_a_laser_razor_then_arent_we_not/ | {
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"text": [
"Lasers have a number of problems with battlefield application. For instance, there tends to be less dust and deb... | [] | [
"https://www.kickstarter.com/projects/skarp/the-skarp-laser-razor-21st-century-shaving/updates"
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[],
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1r7lsp | how does a director have any impact on the story itself, since he doesn't write the screenplay? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1r7lsp/eli5_how_does_a_director_have_any_impact_on_the/ | {
"a_id": [
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"text": [
"The writer writes the dialogues, scene setting and some actions. The director directs the actors how the actors are to deliver the dialogues, where they're to stand on the scene, where they're to look and the expressions the... | [] | [] | [
[],
[]
] | ||
5j7uzf | why do states have different regulations for "open" vs "concealed" carry? | Which restrictions are usually more strict - restrictions for open or concealed? Why are the restrictions and regulations different? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5j7uzf/eli5why_do_states_have_different_regulations_for/ | {
"a_id": [
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"text": [
"Many generations ago, open carry was culturally seen as less threatening (people considered those who carried arms openly as not posing a threat, and those who carried arms secretly as up to nefarious purposes). In that era, laws and regulations... | [] | [] | [
[]
] | |
10kbl7 | "Melting metal with magnets." What exactly is happening in this gif? | _URL_0_
| askscience | http://www.reddit.com/r/askscience/comments/10kbl7/melting_metal_with_magnets_what_exactly_is/ | {
"a_id": [
"c6e71in"
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"score": [
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"text": [
"This has been asked many times since that .gif was on the front page."
]
} | [] | [
"http://i.minus.com/ibhivyegZTuldq.gif"
] | [
[]
] | |
6hn0w3 | why, after so many years of living near and around plants, does hay fever still exist | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6hn0w3/eli5_why_after_so_many_years_of_living_near_and/ | {
"a_id": [
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"text": [
"Hay fever, particularly mild hay fever, doesn't have a substantial impact on the survival or odds of procreation for over the whole of the human population. \n\nAdditionally, the prevalence and severity of allergies is dependent on many factors,... | [] | [] | [
[]
] | ||
xnkpd | Let me get this straight: Is space infinite? If yes, then is there infinite matter? If no, does that mean that there is finite matter expanding into infinite space? Does that mean the size of the universe is infinite but the size of the observable is finite? | askscience | http://www.reddit.com/r/askscience/comments/xnkpd/let_me_get_this_straight_is_space_infinite_if_yes/ | {
"a_id": [
"c5nxkyw"
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"text": [
" > Is space infinite?\n\nThe data we have suggests that this is the case, but it's not conclusive. See [here](_URL_1_) and [here](_URL_0_) for more details.\n\n > If yes, then is there infinite matter?\n\nThat is a likely consequence.\n\n > the s... | [] | [] | [
[
"http://www.reddit.com/r/askscience/comments/xms81/if_all_the_matter_in_the_universe_was_compressed/c5nqva3",
"http://www.reddit.com/r/askscience/comments/xnb4u/how_can_space_be_infinite/c5nx3bg"
]
] | ||
2p74v9 | why are metal slivers so much more painful than wood slivers? | I work in construction and get both frequently but the metal ones are always much more painful. Even a tiny metal sliver hurts more than a larger wood one. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2p74v9/eli5_why_are_metal_slivers_so_much_more_painful/ | {
"a_id": [
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"score": [
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"text": [
"Moist wood is somewhat flexible. It also isn't really very sharp. Metal is inflexible and can be made to be and stay very sharp."
]
} | [] | [] | [
[]
] | |
dfyhxf | Why were the various tribes in the Philippines not drastically affected by the Bubonic Plague and Smallpox upon Magellan's (and subsequent Spanish landings) unlike many Indians, and Meso-American societies? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dfyhxf/why_were_the_various_tribes_in_the_philippines/ | {
"a_id": [
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"text": [
"The answer is pretty straightforward: the Philippines were never isolated from the landmass of continental Asia, unlike the Americas. Therefore, diseases could spread from Asia to the Philippines with relative ease, from con... | [] | [] | [
[
"http://paulmorrow.ca/lcieng.htm"
],
[]
] | ||
mhodh | Is painting on tree trunks okay for tree health? | There is a tree at my university that everyone paints on as a sort of billboard/advertising space, and it really bothers me. I'm curious as to what negative effects, if any, this has on the health of the tree. They paint with either housepainting paint/primer, or spraypaint, and it's starting to layer up on the trunk. ... | askscience | http://www.reddit.com/r/askscience/comments/mhodh/is_painting_on_tree_trunks_okay_for_tree_health/ | {
"a_id": [
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"text": [
"The bark on trees isn't especially useful for gas exchange, or photosynthesis since it is dead on the outermost layers. The harm will be minimal, but only so much better than carving your name in it.",
"The bark on trees... | [] | [] | [
[],
[]
] | |
nwfci | Hummingbird inside a car | If there's a hummingbird inside your car flying mid-air and the car starts moving, does the hummingbird move with the car or will it go into the rear window? Would it make a difference if the windows are down? | askscience | http://www.reddit.com/r/askscience/comments/nwfci/hummingbird_inside_a_car/ | {
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"As the car accelerates, it will move back relative to the car, but as it reaches a constant velocity it will move with the car.",
"As the car accelerates, it will move back relative to the car, but as it reaches a consta... | [] | [] | [
[],
[]
] | |
8pyf1a | batteries have two poles, negative and positive. they can be explained by being a pole with excessive electrons and another one lacking electrons. but what about magnets? we have the north and the south pole? what are them? excess of something, lack of something? what? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8pyf1a/eli5_batteries_have_two_poles_negative_and/ | {
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"text": [
"Though the poles of a battery are sort of able to be explained by one having more electrons than the other (this is a better analogy for capacitors than it is for batteries), the poles are actually defined by the behavior of... | [] | [] | [
[],
[]
] | ||
636sex | why humans come down with minor illnesses all the time but when a pet gets sick it's typically a more serious problem. | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/636sex/eli5_why_humans_come_down_with_minor_illnesses/ | {
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"text": [
"Typically one of the key ways that you tell a human has a minor ailment is they complain about it. Generally it ... | [] | [] | [
[],
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2zpywr | is it possible to improve your memory to a point where you can memorise a full page of numbers?how? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2zpywr/eli5is_it_possible_to_improve_your_memory_to_a/ | {
"a_id": [
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"text": [
"It's possible to memorize that page using various mnemonic devices such as turning them into a song, or a story, or by breaking them into manageable chunks.\n\nBut it's not like your \"memory is improving\". You're just using a trick to convert ... | [] | [] | [
[]
] | ||
378dk6 | Why is the chicxulub crater still intact? | Wouldn't the crater be broken up by the continents moving? | askscience | http://www.reddit.com/r/askscience/comments/378dk6/why_is_the_chicxulub_crater_still_intact/ | {
"a_id": [
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"text": [
"Hello!\n\n1. Have a solid \"basement rock\" floor.\n2. Build a stable carbonate platform on top.\n3. Smash it with a bolide. \n4. Bury the resulting crater in tonnes of sediment.\n5. Do this over a relatively geologically fast timeframe. \n6. Do ... | [] | [] | [
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"http://onlinelibrary.wiley.com/doi/10.1029/2007JB005393/full",
"http://onlinelibrary.wiley.com/doi/10.1002/rog.20007/full"
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3lw5oy | Interested in Military History | This is a question about the use of infantry support weapons in ww2. I have heard many descriptions about how infantry weapons such as the Thompson and BARs were issued in the squad in ww2. For instance, some say the Thompson was issued to the officers, etc. My father fought in the south Pacific in the Philippines. I o... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3lw5oy/interested_in_military_history/ | {
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"The Thompson wasn't usually *issued* to officers per se, but they could scrounge for them. Thompsons were usually issued to drivers and the crews of armored vehicles; officers carried M1 carbines or M1911 pistols. \n\nSubmachine guns evidently fo... | [] | [] | [
[
"http://www.ww2gyrene.org/rifle_squad.htm",
"http://www.militaryresearch.org/7-17%2026Feb44.pdf"
]
] | |
3r59ww | why do health inspectors give warnings to restaurants before inspections? wouldn't it make more sense to surprise restaurant owners? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3r59ww/eli5_why_do_health_inspectors_give_warnings_to/ | {
"a_id": [
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"text": [
"I don't think they need to warn the restaurants. When they inspect, they typically will give them a certain amount of time in which they need to fix violations before returning. "
]
} | [] | [] | [
[]
] | ||
4ffl7i | why does the same logic not apply to music and other "pirating?" | _URL_0_
The Google Books case just got put to rest, why does this reasoning not apply to all copyright infringement cases? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ffl7i/eli5_why_does_the_same_logic_not_apply_to_music/ | {
"a_id": [
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"text": [
"The key difference is that Google isn't publishing copies of the books that they scan. If they were letting anyone download the full books, that would almost certainly lead to a different court decision.\n\nGoogle is sharing... | [] | [
"http://arstechnica.com/tech-policy/2016/04/fair-use-prevails-as-supreme-court-rejects-google-books-copyright-case/"
] | [
[],
[]
] | |
9qfam5 | how to calculate how many valence electrons there are in a element/atom | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9qfam5/eli5_how_to_calculate_how_many_valence_electrons/ | {
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"text": [
"Valence electrons are defined as the electrons important for chemical bonding, not necessarily the number of electrons in certain orbitals. Periods 4, 5 and 6 have the typical families (alkali, alkalin... | [] | [] | [
[],
[],
[]
] | ||
32xa5h | Can stars/sky in a photograph give us the location from where the photograph was taken? If so, how does it work? | I've seen this happen in movies/TV many times. Also someone was talking about it(confused celestial coordinates with coordinates on earth) in /r/space today. Feel free to go deep about it in your answers if you want.
Edit: A lot of you were confused...Assume that the photographs have timestamps and the angle of the p... | askscience | http://www.reddit.com/r/askscience/comments/32xa5h/can_starssky_in_a_photograph_give_us_the_location/ | {
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"text": [
"Relevant link below (search star sighting). Currently our submarine launched ICBMs also called SLBMs use a \"star sighting\" system to locate themselves. This is highly accurate ... | [] | [] | [
[
"http://en.m.wikipedia.org/wiki/Trident_%28missile%29"
],
[
"http://nanograv.org/science/pta.html"
],
[],
[
"http://en.wikipedia.org/wiki/Stellar_parallax",
"http://en.wikipedia.org/wiki/Marine_chronometer",
"http://en.wikipedia.org/wiki/Sextant"
]
] | |
2lrc4n | what causes comment threads in eli5 to be deleted or locked? | I have been looking through old posts and I keep seeing deleted comments with replies or whole comment threads deleted or locked posts. I've read the rules but it seems random in the actual threads | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2lrc4n/eli5_what_causes_comment_threads_in_eli5_to_be/ | {
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"clxeu1q"
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"text": [
"We delete comments that violate the rules. So rude comments directed at other redditors, or top level comments that are irrelevant to the question (jokes, etc), and that sort of thing. Threads get locked mostly because they have been adequately a... | [] | [] | [
[]
] | |
1086ob | Have there ever been any groups of people whose soldiers would hold their funerals BEFORE going into battle/dying? | I know I've read of this before, but I can't recall whether or not it was history or something I'd read in fiction. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1086ob/have_there_ever_been_any_groups_of_people_whose/ | {
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"text": [
" > read in fiction.\n\nPerhaps your thinking of the Legion of the Dead in Dragon Age Origins? ",
"Didn't the Kamikase hold ceremonies prior to them taking off? I'm not sure if you'd call it a funer... | [] | [] | [
[],
[],
[]
] | |
18y8mc | is it really possible to hear the difference between an uncompressed .wav and 320kbit .mp3? | I cant really figure out, what all that is about.
where exactly are the big "problems" of mp3 encoding, even if using a high bitrate? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/18y8mc/eli5_is_it_really_possible_to_hear_the_difference/ | {
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"text": [
"Many people think or like to think that they can, but they will fail in blind tests. The same kind of people who will praise cheap wine if they're seeing it ... | [] | [] | [
[],
[
"http://nigelcoldwell.co.uk/audio/"
],
[],
[],
[]
] | |
kkd8g | What would the lifespan of someone born in the past two decades be? | I'm curious. I'm 21 and wondering what my generation's average lifespan is relative to, say, my parents'. Anyone have any idea? | askscience | http://www.reddit.com/r/askscience/comments/kkd8g/what_would_the_lifespan_of_someone_born_in_the/ | {
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"text": [
"our increasing lifespans are largely due to medical advances, new drugs and treatments..\n\nSo unless somebody wants to go out on such a limb as to predict the next 50 years of med... | [] | [] | [
[],
[
"http://www.ssa.gov/oact/STATS/table4c6.html"
],
[],
[
"http://www.ssa.gov/oact/STATS/table4c6.html"
]
] | |
20ictq | how is veto power fair? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/20ictq/eli5_how_is_veto_power_fair/ | {
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"text": [
"If you mean in the US government, it ensures (in theory) that no one branch of the government is all-powerful. It's part of the system of checks and balances.",
"It's one of the powers of being a ch... | [] | [] | [
[],
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t3vqd | Where can I get a tl;dr/simple rundown of Greek mythology, specifically the gods and titans | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/t3vqd/where_can_i_get_a_tldrsimple_rundown_of_greek/ | {
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"text": [
"This is exactly what [Wikipedia](_URL_0_) is good for. It hyperlinks to articles on more specific topics (such as more detailed breakdowns of the Olympians).",
"The book you want is [Bullfinch's Myt... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Greek_mythology"
],
[
"http://www.amazon.com/Bulfinchs-Mythology-Modern-Library-Classics/dp/0375751475"
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[
"http://www.amazon.com/Oh-My-Gods-Modern-Retelling/dp/1451609973",
"http://www.amazon.com/Myths-Ancient-Greeks-Richard-Martin/dp/0451206851"
]
] | ||
556eb3 | Is Sanskrit the oldest written language? If not; what is? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/556eb3/is_sanskrit_the_oldest_written_language_if_not/ | {
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"text": [
"No, not by far. The oldest writing systems used for Sanskrit, Brahmi and Kharoshti Script, developed in the 3rd century BC. By that time, there were a number of other writing systems around already (both scripts are actually... | [] | [] | [
[],
[]
] | ||
1ksn79 | Did fear of Communism play a significant role in the granting of civil rights to American blacks? | I've read that the Soviets saw the black underclass in the USA as potential allies, and I know that groups like the Black Panthers embraced a kind of revolutionary Marxism. But is there any evidence that the political will to end segregation and Jim Crow was stimulated by fear of an African-American "fifth column" in t... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ksn79/did_fear_of_communism_play_a_significant_role_in/ | {
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"text": [
"From what I have read, In Manfred Berg's Ticket to Freedom. It appears that the fear of communism, took more of a center stage in american politics, and put civil rights on hold. ... | [] | [] | [
[],
[],
[
"http://www.npr.org/templates/story/story.php?storyId=123771194"
],
[]
] | |
3r6ov9 | why is it that when a bottle of coke is shaken the bottle might explode because of the gas built up ? it's not like the co2 isn't there before it was shaken. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3r6ov9/eli5_why_is_it_that_when_a_bottle_of_coke_is/ | {
"a_id": [
"cwle81p"
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"score": [
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"text": [
"Actually, that's exactly what it's like. The CO2 is bound up in carbonic acid inside the drink itself, and isn't in gaseous form. Shaking it actually produces CO2. So you're right - the gas actually _isn't_ there before it's shaken. "
]
} | [] | [] | [
[]
] | ||
202dya | Did Nazi Germany or the Nazi Party ever acknowledge the fact that Hitler wasn't blonde haired and blue eyed? | It strikes me as something that would have been a huge elephant in the room. The Nazis advocated for the position that blonde, blue eyed individuals were the most racially pure, and the man leading the party had black hair and brown eyes. Was this ever addressed, at any time, or did everyone pretend like they didn't ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/202dya/did_nazi_germany_or_the_nazi_party_ever/ | {
"a_id": [
"cfz6jig",
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10,
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"text": [
"He had blue eyes: _URL_0_",
"The idea that blonde hair and blue eyes were the epitome of Aryan purity is actually a major oversimplification of Nazi propaganda.\n\nIt's true that the blonde haired... | [] | [] | [
[
"http://rarehistoricalphotos.com/rare-color-photo-adolf-hitler-shows-true-eye-color-date-unknown/"
],
[],
[]
] | |
2wzmux | investment bankers on wall street are known for working insanely hard (100+ hour weeks). what exactly are they doing that requires them to work so long? | I basically understand what investment bankers do, but I don't get where 100+ hours per week of work comes from. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2wzmux/eli5_investment_bankers_on_wall_street_are_known/ | {
"a_id": [
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3
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"text": [
"Trading is a very time-critical activity. Global markets never shut down completely. Every second that you are not on the job can mean a missed opportunity. Good opportunities are rare and it's hard to predict when they ari... | [] | [] | [
[],
[
"http://www.sec.gov/Archives/edgar/data/320193/000119312514383437/d783162d10k.htm"
]
] | |
5sy1gc | How is it possible that 100,000,000 people died in the Taiping Rebellion? | The Wikipedia page on the Taiping Rebellion lists the death toll at one hundred million people, but doesn't give an answer as to how this is possible. How did it happen? And have there been more deaths ever before? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5sy1gc/how_is_it_possible_that_100000000_people_died_in/ | {
"a_id": [
"dditeyh",
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"text": [
"Just want to point out, the [wikipedia article](_URL_0_) says:\n\n > **Total dead**: 20-30 million dead (best estimate)^[7]\n > Highest estimate: 100,000,000\n\nThe source cited for [7] is Stephen R. Platt. *Autumn in the H... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Taiping_Rebellion"
],
[
"http://www.bbc.co.uk/programmes/b00yqvqt"
]
] | |
25xdux | Why do certain sounds sound appealing and others don't? | askscience | http://www.reddit.com/r/askscience/comments/25xdux/why_do_certain_sounds_sound_appealing_and_others/ | {
"a_id": [
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"text": [
"Three incomplete explanations:\n\n1. A sound can be appealing because it is associated with a pleasant experience. If you grew up near the ocean, for example, a distant foghorn might be a pleasant sound.\n\n2. As for the quality of sound, it mig... | [] | [] | [
[]
] | ||
2q0oo6 | why does curling up into the fetal position help stomach/period cramps? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2q0oo6/eli5_why_does_curling_up_into_the_fetal_position/ | {
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"text": [
"I believe it minimize the use of those muscles and allows them to relax, therefore hurt less. ",
"Not sure why it is that way for some people. \nI've actually found that laying on my side isn't the... | [] | [] | [
[],
[
"http://www.womenshealthmag.com/health/sleep-positions"
],
[]
] | ||
1snfft | chemistry bonds | Explain the differences between a covalent bond and an ionic bond. Please, I really don't understand it. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1snfft/eli5_chemistry_bonds/ | {
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"In a covalent bond, the electrons are being shared by the the atoms. In an ionic bond, one atom had completely taken done electrons from the other. In this case, bbot atoms become oppisitely ccharged, ... | [] | [] | [
[],
[],
[]
] | |
y33j4 | Physics - Nuclear Fusion | I was trying my best to explain nuclear fusion to somebody today and I came to one important question: If you perform nuclear fusion with, let's say, Deuterium and Tritium, having Helium 4 and a Neutron as a result, with incredible amounts of energy of course, where do the matter destroyed by the fusion go?
Wikipedia ... | askscience | http://www.reddit.com/r/askscience/comments/y33j4/physics_nuclear_fusion/ | {
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"text": [
"Mass and energy are the same thing. Think of rest mass as energy that is \"trapped\" in one place. Some of this \"trapped\" energy is freed in the D-T fusion reaction.",
" > where do the matter dest... | [] | [] | [
[],
[],
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] | |
im254 | Can insects eventually evolve into higher, more intelligent lifeforms? | Why haven't they done this already? The Earth was dominated by reptiles, now mammals... why not insects next? | askscience | http://www.reddit.com/r/askscience/comments/im254/can_insects_eventually_evolve_into_higher_more/ | {
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"text": [
"Sure, why not.\n\nWhy they haven't? They've got it pretty good already, survival wise. Insects are already some of the most \"highly evolved\" things out there, with some extremely... | [] | [] | [
[],
[],
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1stbwf | how a rubik's cube can be solved using a set pattern each and every time. | I know that Rubik's cubes have certain patterns of moves you can use to solve them, but how is this possible with the billions of possible configurations of a Rubik's cube? How does one set pattern or a couple of patterns work for every possible combination?
Thanks! :D | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1stbwf/eli5_how_a_rubiks_cube_can_be_solved_using_a_set/ | {
"a_id": [
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"text": [
"They aren't. What professional solvers have are set patterns to 'fix' particular parts of the cube, and then they fix the cube piece by piece.",
"You're refering to solving a Rubik's Cube with [Macro-operators.](_URL_0_)... | [] | [] | [
[],
[
"http://www.dtic.mil/dtic/tr/fulltext/u2/a221571.pdf"
]
] | |
60b4b2 | Did Hitler ever have any plans to build a colosseum esque building? | Considering his fascination with the roman empire.
I know he wanted to build gigantic buildings in Berlin, he hated Jews enough to create a Gladiator like theater. But maybe the Germans didn't?
Perhaps it's a bit of a odd question, or i have just watched 'gladiator' too recently, this question has me fascinated for t... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/60b4b2/did_hitler_ever_have_any_plans_to_build_a/ | {
"a_id": [
"df59utc"
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"text": [
"In terms of fights to the death? No. You seem to have the idea that the Nazis wanted to make a spectacle out of the murder of the Jews. They certainly wanted to make a spectacle out of their opposition to the \"Jewish conspiracy\" - for example, ... | [] | [] | [
[]
] | |
3ec5yh | why did the greece government all the sudden vote for austerity measures? didn't the people vote no? does their vote not count? how does this work? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3ec5yh/eli5why_did_the_greece_government_all_the_sudden/ | {
"a_id": [
"ctdhj0g",
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"score": [
2,
2
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"text": [
"The referendum in Greece to which Greek voters voted \"no\" was a symbolic gesture that Alexis Tsipras (the prime minister) thought would give him leverage in negotiations with creditors. To be blunt, it did not. Greece ulti... | [] | [] | [
[],
[]
] | ||
5ribp8 | why is the kkk still allowed to exist? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ribp8/eli5_why_is_the_kkk_still_allowed_to_exist/ | {
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3
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"text": [
"Freedom of speech prevents the government from discriminating against people who hold different - even objectionable - beliefs. Threats are where the line is drawn. People are free to hate other peopl... | [] | [] | [
[],
[],
[]
] | ||
2q7sk2 | Gavrilo Princep lived untill 1917, did he ever voice his opinion on the war? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2q7sk2/gavrilo_princep_lived_untill_1917_did_he_ever/ | {
"a_id": [
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16,
2
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"text": [
"Gavrilo Princip wrote a poem in his prison cell. There is a [link in Serbian](_URL_1_).\n\nBelow is my impromptu translation of the poem\n\n\n\nSarajevo 1914\n\n\n\nSlowly the time is dragging\n\nAnd there is nothing new\n\... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Bogdan_%C5%BDeraji%C4%87",
"http://www.telegraf.rs/vesti/1132690-jedina-sacuvana-pesma-gavrila-principa-ove-stihove-je-noktima-urezao-na-zid-zatvora"
],
[
"https://www.reddit.com/r/AskHistorians/comments/29dvmf/considering_the_assassin_of_franz_ferdinand/"
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4jylr9 | why do companies still put the "as seen on tv" log on their merchandise? doesn't the logo represent "cheap" in american culture? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4jylr9/eli5_why_do_companies_still_put_the_as_seen_on_tv/ | {
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"text": [
"Not to that product's target demographic. That demographic thinks, \"Hey, that is that awesome vegetable peeler I saw on TV! It worked great; I should buy it!\"",
"There's an as seen on TV store i... | [] | [] | [
[],
[],
[
"http://vivaldipartners.com/pdf/BrandFamiliarity.pdf",
"https://www.psychologytoday.com/blog/sapient-nature/201201/familiarity-breeds-enjoyment"
]
] | ||
4mpf60 | why is menthol "cold"? | Edit: This blew up a lot more than I thought it would.
To clarify, I'm specifically asking because the shaving soap that I used today is heavily mentholated, to the point that when I shave with it my eyes get wet.
_URL_0_ This soap, specifically. It's great. You should buy some.
It's *cold*™ | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4mpf60/eli5_why_is_menthol_cold/ | {
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51,
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"text": [
"The people saying it's because of evaporative cooling are wrong. Menthol's boiling point is 212 Celsius, much warmer than your body... | [] | [
"http://www.queencharlottesoaps.com/Vostok_p_31.html"
] | [
[],
[],
[],
[],
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bexzt6 | where do our eyes focus when sleeping? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bexzt6/eli5_where_do_our_eyes_focus_when_sleeping/ | {
"a_id": [
"el9c08x"
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"text": [
"Your eye focus is determined by the activity of the [ciliary muscle](_URL_0_). When it contracts, this warps your lens and makes it longer than it is wide, and you can see things up close. When it relaxes, the lens warps and becomes thinner, and... | [] | [] | [
[
"http://1.bp.blogspot.com/_kaQ5P19FVgk/ScAOuPSqt9I/AAAAAAAACfo/jc1ls3_GUFY/s400/CiliaryMuscle2.JPG"
]
] | ||
1j5n2o | How common was filming from aircrafts during WWII? | I watched the film Red Tails last night, George Lucas's take on the experience of black US airmen in 1944 Italy. Whilst I'm sure it's full of inaccuracies, one thing that I was left wondering is how common was filming from aircrafts during the war? In the film, after each mission the airmen watch back clips from their ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1j5n2o/how_common_was_filming_from_aircrafts_during_wwii/ | {
"a_id": [
"cbbh4jk"
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"score": [
4
],
"text": [
"it was not extremely common but not usual for some planes to have a [gun camera](_URL_0_). The camera is triggered to start recording when the pilot pulls the trigger and fires planes guns and stays recording for a short period of time. This foot... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Gun_camera"
]
] | |
3je7cw | why don't laptops use simcards? | As the title says.
In most major cities, the mobile data net is fast enough to handle data transmissions - hell, where I live, my phone (with wifi off) is faster than my own 100/50mbps network.
Why don't laptops come with a place to put a simcard, just like a phone? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3je7cw/eli5_why_dont_laptops_use_simcards/ | {
"a_id": [
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3,
4,
4
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"text": [
"Because you just have to buy [one of these](_URL_0_) or [one of these](_URL_1_). So, on the manufacturing aspect, they don't have to add a port and the functionality for no reason.",
"The simcard do... | [] | [] | [
[
"http://mb.cision.com/Public/MigratedWpy/85065/699656/9a780df5c46cf19e_org.jpg",
"http://www.verizonwireless.com/internet-devices/ellipsis-jetpack-mhs800l/"
],
[],
[]
] | |
frn8st | We found several more SARS related coronaviruses in bats. Could we create vaccines for them now using these strains that would be effective if they ever transferred to humans? | askscience | https://www.reddit.com/r/askscience/comments/frn8st/we_found_several_more_sars_related_coronaviruses/ | {
"a_id": [
"flzk2dy"
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"score": [
6
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"text": [
"Making a vaccine against a virus that hasn’t actually infected any people isn’t realistic or practical.\n\nThe last and most important phase in testing a vaccine is to give it to a lot of people, to see if it prevents them from catching the disea... | [] | [] | [
[]
] | ||
pmbbj | How many plants would I need to have in a sealed room with me to never run out of oxygen? | Is there a specific plant that is best at the process of creating oxygen?
Edit:
Factors for a specific scenario:
Unlimited access to water and sunlight (source of energy) The soil has all necessary nutrients. (Optimal conditions)
An average male at 80 kilos at 180 cms and age 20.
The person has no threats that w... | askscience | http://www.reddit.com/r/askscience/comments/pmbbj/how_many_plants_would_i_need_to_have_in_a_sealed/ | {
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"c3qipyg",
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"c3qj27b",
"c3qj4ft",
"c3qj7ro",
"c3qjn69",
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"c3qlckd",
"c3qldyz",
"c3qlgbl",
"c3qlkp7",
"c3qmbco",
"c3qmeve",
"c... | [] | [] | [
[
"http://cedb.asce.org/cgi/WWWdisplay.cgi?7000907",
"http://answers.yahoo.com/question/index?qid=20090116111953AAeaWw5",
"http://www.dailymail.co.uk/sciencetech/article-2038180/TV-scientist-suffers-blinding-headaches-experiment-living-airtight-box-surviving-solely-oxygen-emitted-plants-comes-end.html",... | |
56c18d | why do we drive on a side of the car? wouldn't it make more sense to drive from the center? | Title. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/56c18d/eli5_why_do_we_drive_on_a_side_of_the_car_wouldnt/ | {
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"text": [
"Early cars did this. It wasn't until later that it was shifted to the side.\n\nUltimately it was moved to the side, with early inconsistency. The logic was probably greatly influenced by increased pas... | [] | [] | [
[],
[],
[]
] | |
20mg15 | How common were prison escapes in the middle ages? What are some notable escapes and attempts? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/20mg15/how_common_were_prison_escapes_in_the_middle_ages/ | {
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"text": [
"Duke Kestutis, pagan Duke of Trakai, brother and close ally to Grand Duke Algirdas of Lithuania escaped from Marienburg, where he ... | [] | [] | [
[],
[
"http://www.historyoflaw.info/hugo-grotius-escape-from-prison.html"
],
[],
[],
[],
[]
] | ||
22alrw | why don't civilian police stop truckers? | All I ever see is troopers stopping them or sheriffs | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/22alrw/eli5_why_dont_civilian_police_stop_truckers/ | {
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"text": [
"I'm not sure what you mean by \"civilian police\". If you mean *city* police, they do, if truckers break traffic laws. That's pretty uncommon though.",
"City police can pull ov... | [] | [] | [
[],
[],
[],
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] | |
53mrtl | Stone age Europeans reaching the Americas? | So I've seen a decent amount of different newssites post something similar to [this](_URL_0_). But I can't seem to find the original studies or anything about it.
Anyone that knows for sure whether this is the case or not? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/53mrtl/stone_age_europeans_reaching_the_americas/ | {
"a_id": [
"d7uffh4"
],
"score": [
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"text": [
"There's always room for discussion, but perhaps these previous topics found through the search function will answer your inquiry.\n\n* [Who are the Solutreans and did they migrate to America?](_URL_1_) by /u/Reedstilt\n\n* [\nWhat evidence is the... | [] | [
"http://www.independent.co.uk/news/world/americas/new-evidence-suggests-stone-age-hunters-from-europe-discovered-america-7447152.html#gallery"
] | [
[
"https://www.reddit.com/r/AskHistorians/comments/2lcsto/what_evidence_is_there_that_caucasians_inhabited/",
"https://www.reddit.com/r/AskHistorians/comments/1jrwal/who_are_the_solutreans_and_did_they_migrate_to/"
]
] | |
2etpn7 | Do anthropologists agree with Steven Pinker that the average rates of violence in hunter/gatherer societies are higher than peak rates in World War 2? | _URL_0_
| askscience | http://www.reddit.com/r/askscience/comments/2etpn7/do_anthropologists_agree_with_steven_pinker_that/ | {
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"text": [
"While not of the quality of a scientific journal article, the following article (by the director of Survival International) does question Pinker's view, giving some examples of... | [] | [
"http://youtu.be/2nJaeiOeqRA?t=25m22s"
] | [
[
"http://truth-out.org/opinion/item/16880-the-case-of-the-brutal-savage-poirot-or-clouseau-or-why-steven-pinker-like-jared-diamond-is-wrong"
],
[],
[
"http://www.city-journal.org/2014/bc0413sm.html"
],
[
"http://www.ncas.rutgers.edu/sites/fasn/files/Pinker's%20List%20-%20Exaggerating%20Prehis... | |
28rvql | the possibility of a world war 3 | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28rvql/eli5_the_possibility_of_a_world_war_3/ | {
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"text": [
"Somewhat likely. Russia is pissing everyone off with their Ukraine crap, but mutually assured destruction will certainly keep everyone from firing nuclear arms. The closest the w... | [] | [] | [
[],
[],
[],
[]
] | ||
7qw5l8 | how can freezing have a "burning" effect? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7qw5l8/eli5_how_can_freezing_have_a_burning_effect/ | {
"a_id": [
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"text": [
"From a feeling point of view, they both set off nerves and can be intense enough to not be able to tell the difference. \n\nFrom a damage point of view they both damage cells and can cause similar looking injuries even thou... | [] | [] | [
[],
[]
] | ||
148w5o | How much would you have to compress a single atom for it to turn into a black hole? | Does this question even make sense given the math of the matter? | askscience | http://www.reddit.com/r/askscience/comments/148w5o/how_much_would_you_have_to_compress_a_single_atom/ | {
"a_id": [
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"score": [
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"text": [
"If you're using a hydrogen atom (i.e., a proton), the Schwarzschild Radius is [2.5 x 10^-54 meters](_URL_0_).\n\nA black hole's event horizon is 3 kilometers per solar mass."
]
} | [] | [] | [
[
"http://www.wolframalpha.com/input/?i=3+km+*%28mass+of+proton%29+%2F+%28solar+mass%29"
]
] | |
27xk0l | If chewing is the first step in digestion, would you get more energy from a food if you swallowed it before chewing it? | askscience | http://www.reddit.com/r/askscience/comments/27xk0l/if_chewing_is_the_first_step_in_digestion_would/ | {
"a_id": [
"ci5db0w"
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"text": [
"The purpose behind chewing our food is to reduce its size and introduce some initial enzymes (in our spit) that start the digestive process going. If the food isn't chewed enough, the lumps of food are larger and the surface area is smaller, whic... | [] | [] | [
[]
] | ||
1f0xj0 | how autotune works | I understand that the frequency of a sound wave determines its pitch.
Let's say we have three notes, of 1 second each, and each of different pitches. I understand that if a computer could determine where one note ends and another one starts (which isn't too difficult to do), it could easily speed up the sound wave for... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1f0xj0/eli5_how_autotune_works/ | {
"a_id": [
"ca5ri2f"
],
"score": [
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"text": [
"Well this is really hard to explain like you're five years old because of the advanced nature of the science and technology involved.\n\nI should first say that I don't really KNOW this for sure, I'm not as familiar with the technology but I do w... | [] | [] | [
[]
] | |
2xy8ul | Does the sun's parent star have a name? | We know that the sun was created in a molecular cloud. If I'm not mistaken, that type of cloud comes from an exploding star. I'm curious as to whether or not scientists have named that star. (and the cloud too.)
On a side note, how long did the cloud last? Does it still exist in some way? Do we know of any sibling sun... | askscience | http://www.reddit.com/r/askscience/comments/2xy8ul/does_the_suns_parent_star_have_a_name/ | {
"a_id": [
"cp6pe56"
],
"score": [
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"text": [
"I'm only a major in astrophysics, so I don't yet have super advanced knowledge, but it's my understanding that only a portion of the cloud formed our solar system, meaning there are other bodies from the same cloud. It does not still exist, thoug... | [] | [] | [
[]
] | |
7qfcbl | Byzantine Army in the 15th Century | I realize that Byzantine is a wholly inaccurate term, but I’m using it in this post for simplicity.
So my question is, what was the army of the Eastern Romans (both standing - if there was such a thing - and levied - if levies still were widely used)? I’m curious about troop composition, equipment, and even doctrine ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7qfcbl/byzantine_army_in_the_15th_century/ | {
"a_id": [
"dspot23"
],
"score": [
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],
"text": [
"One of the only good books on this subject is Mark C. Bartusis 'The Late Byzantine Army: Arms and Society, 1204-1453'. Even though the 15th century is more recent to us compared to the rest of Byzantine history, evidence of what their armies wer... | [] | [] | [
[]
] | |
3o009a | What kind of interactions happened between the underground hip-hop and punk scenes in 1970s NYC? | I'm not talking about things like Blondie's Rapture or 'World Destruction', or the Beastie Boys. I'm more curious about the rise of both musical cultures affected each other on a personal level, in the streets and venues in NYC. Was there any kind of significant crossover in fan bases? Memorable concerts with both kind... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3o009a/what_kind_of_interactions_happened_between_the/ | {
"a_id": [
"cvt9jix"
],
"score": [
2
],
"text": [
"Just commenting to say I'm super interested in this question! I was pretty involved with the DIY punk and hardcore scene in my early 20s and I often thought that there were a lot of similarities between punk and hip-hop. Would love to explore thi... | [] | [] | [
[]
] | |
3a97xl | Was there a concept of racial supremacy before the 1500s? | Or with the discovery of the new world came supremacy based on race?
The only thing i can think of is between local tribes. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3a97xl/was_there_a_concept_of_racial_supremacy_before/ | {
"a_id": [
"csaka0d"
],
"score": [
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"text": [
"Yes, very much so.\nWe can see the beginning of a proto-racist culture (as opposed to jingoism say between Sparta and Athens) in classical antiquity.\n\nThe idea of superior and inferior peoples is explored especially well by [this book](_URL_0_)... | [] | [] | [
[
"https://books.google.co.uk/books/p/princeton?id=jfylyRawl8EC&printsec=frontcover&source=gbs_ViewAPI&hl=en&redir_esc=y#v=onepage&q&f=false"
]
] | |
3xiqnh | why don't the swiss speak a single language? | Why would three small regions that speak totally different languages unify like that? I get why they don't have their own language, but it's kind of weird that three areas that don't even speak the same language could feel connected enough culturally to become a single country. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3xiqnh/eli5_why_dont_the_swiss_speak_a_single_language/ | {
"a_id": [
"cy4zjug"
],
"score": [
3
],
"text": [
"They are remnants of the many, many independent states in that region of Europe in the middle ages, that were able to maintain their independence in the age of state-building because alpine warfare is no joke."
]
} | [] | [] | [
[]
] | |
97ovx6 | why can bodies last 8+ hours without peeing during the night, but that would be a huge challenge during the day? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/97ovx6/eli5_why_can_bodies_last_8_hours_without_peeing/ | {
"a_id": [
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"score": [
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3
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"text": [
"It's not a huge challange when you're busy. I don't know how exactly, but human body can tell when it's not the right time to go to the restroom. During work, for example, or during sleep.\n\nI have no urge to pee when I wor... | [] | [] | [
[],
[]
] | ||
1p0uy9 | Can astronomers see further back in time than Hubble eXtreme Deep Field? | none | askscience | http://www.reddit.com/r/askscience/comments/1p0uy9/can_astronomers_see_further_back_in_time_than/ | {
"a_id": [
"ccxqgc9",
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"score": [
3,
3
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"text": [
"Yes. We can see back to the cosmic microwave background. That's about 380.000 years after the beginning of the big bang. There's an argument that you could look back even further by looking at the neutrinos from the early ... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Big_Bang_nucleosynthesis",
"http://en.wikipedia.org/wiki/Inflation_%28cosmology%29",
"http://en.wikipedia.org/wiki/CMB"
]
] | |
3j6suv | What is the considered the most accurate drawing of Achilles' shield? | Not sure if this question belongs here or not, but I'm looking to find the most accurate picture or drawing of Achilles' shield as described in the Iliad. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3j6suv/what_is_the_considered_the_most_accurate_drawing/ | {
"a_id": [
"cumwt47"
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"score": [
7
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"text": [
"There can be no question of accuracy, because it's a purely fictional object. That said, the description of the shield in the Iliad does adapt various late artistic motifs that started to come in ca. 700 BC or a bit later, so it's possible to at ... | [] | [] | [
[
"http://www.mlahanas.de/Greeks/Mythology/Images/AchillesShD.gif",
"http://content.ngv.vic.gov.au/col-images/api/EPUB001301/1280",
"https://en.wikipedia.org/wiki/Shield_of_Achilles",
"http://www.mlahanas.de/Greeks/Mythology/AchillesShieldImage.html",
"https://upload.wikimedia.org/wikipedia/comm... | |
lkzx2 | how does a quartz clock work? what the heck does a crystal have to do with keeping time? thanks in advance. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/lkzx2/eli5_how_does_a_quartz_clock_work_what_the_heck/ | {
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"score": [
17,
207,
4,
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"text": [
"ELI5: Something really weird happens when you hook a piece of quartz up to a battery: ... | [] | [] | [
[
"http://www.physlink.com/education/askexperts/ae559.cfm"
],
[
"http://www.youtube.com/watch?v=1pM6uD8nePo"
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[],
[],
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],
[
"http://www.youtube.com/watch?v=1pM6uD8nePo"
],
[],
[]
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fxowk7 | when, where and why did the no-vax movement appear? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fxowk7/eli5_when_where_and_why_did_the_novax_movement/ | {
"a_id": [
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"text": [
"In 1998 a British Doctor, Andrew Wakefield, published a medical paper linking the MMR vaccine to Autism.\nHe did so because he wanted to make money selling the individual vaccines.\nThis was eventually found out and all the \"research\" he did w... | [] | [] | [
[]
] | ||
37bzvm | what is an analog computer (like the antikythera mechanism), and how does it work? | I read an article this morning on the Antikythera mechanism and I pretty much didn't understand a word of it. How did they make a "computer" in Ancient Greece? What is an "analog" computer anyway? What are they capable of doing? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/37bzvm/eli5_what_is_an_analog_computer_like_the/ | {
"a_id": [
"crldlgk",
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"score": [
5,
2
],
"text": [
"Analog computers perform some (usually specialised) mathematical operations using wheels, cogs, levers, or slides.\n\nSome examples, in addition to the antikythera:\n[The Slide Rule](_URL_2_), used for finding approximations... | [] | [] | [
[
"http://www.youtube.com/watch?v=NAsM30MAHLg",
"http://en.wikipedia.org/wiki/Curta",
"http://en.wikipedia.org/wiki/Slide_rule"
],
[]
] | |
16u2ku | What are the advantages of being "cold-blooded"? | And if being "warm-blooded" is the superior, how come animals have not all evolved with "warm-blood"? | askscience | http://www.reddit.com/r/askscience/comments/16u2ku/what_are_the_advantages_of_being_coldblooded/ | {
"a_id": [
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"score": [
7,
22,
2
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"text": [
"Animals that are cold blooded tend to originate from an environment where the temperature doesn't change by much (e.g. oceans).\n\nIn this case it is meaningless and wasteful to put energy into maintai... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Cold-blooded"
]
] | |
wbu1g | my 10 year old nephew wants to know, where does sound go? does it just disappear? | Well, what happens to sound and does it continue traveling ? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/wbu1g/my_10_year_old_nephew_wants_to_know_where_does/ | {
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"Sound results from vib... | [] | [] | [
[],
[],
[],
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] | |
2lgk3u | Was Nebuchadnezzar psychologically confused/schizophrenic? | I've heard sources where he was said to have voices speaking to him and somewhat insane, is there any truth to this? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2lgk3u/was_nebuchadnezzar_psychologically/ | {
"a_id": [
"clupk6v",
"clusqz3",
"cluzat8"
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"score": [
2,
2,
2
],
"text": [
"To my knowledge, the only source for this legend of Nebuchadnezzar as having a mental illness is the Bible, specifically [the book of Daniel, Chapter 5.](_URL_0_) I am not sure what modern historians th... | [] | [] | [
[
"https://www.biblegateway.com/passage/?search=Daniel+5&version=NIV"
],
[
"http://www.reddit.com/r/AskHistorians/comments/2jvxcc/did_nebuchadnezzar_actually_go_insane_and_live_in/"
],
[]
] | |
8f40cw | What did the Han Dynasty know about Rome and Vice Versa? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8f40cw/what_did_the_han_dynasty_know_about_rome_and_vice/ | {
"a_id": [
"dy0f8nq"
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"score": [
2
],
"text": [
"Asking questions again is fine. Mentioning previous answers is not intended to discourage discussion. Further questions, data, or debate are welcome. Especially here, where the FAQ is more general, talking about diffusion along the Silk Road a... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/wiki/antiquity#wiki_rome_and_ancient_china"
]
] | ||
brow6j | what is sensory overload? | ELI5 , Is it common? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/brow6j/eli5_what_is_sensory_overload/ | {
"a_id": [
"eofengh",
"eofexzn"
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"score": [
5,
2
],
"text": [
"Too much stuff for your senses to keep track of happening at once - a lot of stimulus can become disorienting.",
"My niece’s son has and from what I understand it occurs when one or more of the body's senses experiences ... | [] | [] | [
[],
[]
] | |
78lsjc | when you stop the flow of water at the end of the hose does it keep increasing in pressure or equal out? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/78lsjc/eli5_when_you_stop_the_flow_of_water_at_the_end/ | {
"a_id": [
"douuavh",
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"douuff3"
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"score": [
3,
2,
2
],
"text": [
"If you stopped the flow of water but the pressure kept increasing, some failure point would eventually give and burst.\n\nGiven every time you shut off the water at a hose/sink/faucet there isn't some l... | [] | [] | [
[],
[],
[]
] | ||
52z61u | When did it become common for civilizations to assist others after catastrophic events? | I assume this type of assistance predates the UN significantly, but how far back does it go? Would ancient cultures/tribes commonly assist neighbors if they had good relations? Or is this a more modern behavior? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/52z61u/when_did_it_become_common_for_civilizations_to/ | {
"a_id": [
"d7onpc5"
],
"score": [
2
],
"text": [
"It has ancient antecedents. A particularly famous example occurred in 226 BC, when the city of Rhodes was struck by a tremendous earthquake which wrecked havoc in the city and toppled the famous Colossus of Rhodes. The historian Polybius provid... | [] | [] | [
[]
] | |
391p83 | why do they put punch holes in the side of kraft mac & cheese boxes? | You have to rip the box open to get to the cheese packet regardless, and if you try to pour it without opening the box first the big ass packet just blocks the hole anyway. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/391p83/eli5_why_do_they_put_punch_holes_in_the_side_of/ | {
"a_id": [
"crzkz2d",
"crzlvr3"
],
"score": [
2,
3
],
"text": [
"Apperently a hole at the side is more convenient? or less likely to make all the pasta fall out of the box in case of an accident? :s",
"The hole isn't for a spout, it's so you can more easily open the box. \nInsert thu... | [] | [] | [
[],
[
"http://imgur.com/BV7f3"
]
] | |
4a9pp6 | why do some police units, like the "gang unit" i saw last night at a concert dress in casual clothes other than their vests? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4a9pp6/eli5_why_do_some_police_units_like_the_gang_unit/ | {
"a_id": [
"d0yige9"
],
"score": [
5
],
"text": [
"Probably because they're undercover. Here in the UK that happens at concerts and shopping stores - they're more likely to catch people selling and using drugs if they aren't wearing a uniform."
]
} | [] | [] | [
[]
] | ||
5w3gge | what does it mean when mathematicians "find" a big number, like graham's number? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5w3gge/eli5_what_does_it_mean_when_mathematicians_find_a/ | {
"a_id": [
"de70d2j",
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3
],
"text": [
"It means they have proved that a particular number has some property.\n\nFor example, it's no secret that the following number exists...\n\n635352637430392987912701250129012740291920019260192341902834091240192749218012980129... | [] | [] | [
[],
[]
] | ||
mj3fm | the difference between art deco and art nouveau. | Ive always heard this two terms and I can't tell what's the difference between the two. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/mj3fm/eli5_the_difference_between_art_deco_and_art/ | {
"a_id": [
"c31brry",
"c31brry"
],
"score": [
2,
2
],
"text": [
"They're related, and fairly similar, as art movements of the early 20th century and to a certain extent the difference is more gradual than anything else, but on the whole art nouveau is more on the decorative, ornamental si... | [] | [] | [
[],
[]
] | |
5t8o24 | what happens to current debt during times of great inflation? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5t8o24/eli5_what_happens_to_current_debt_during_times_of/ | {
"a_id": [
"ddkxsxt",
"ddl32j6",
"ddl6ozw"
],
"score": [
5,
2,
2
],
"text": [
"The value of that debt goes down.\nThat's why lenders factor inflation risk into their risk premium.",
"Suppose you took out a loan of $500 with the agreement that, one year later, you'd pay $1000. ... | [] | [] | [
[],
[],
[]
] | ||
5l3nev | Why does sublimation occur in some substances instead of melting? | What causes a material or element to skip a "stage" of matter and go immediately from a solid to a gaseous state? | askscience | https://www.reddit.com/r/askscience/comments/5l3nev/why_does_sublimation_occur_in_some_substances/ | {
"a_id": [
"dbsnvsr",
"dbspxg0",
"dbsvpuw",
"dbta6sd"
],
"score": [
28,
13,
5,
2
],
"text": [
"The explanation is that solids can be in equilibrium with a gas just like liquids. In other words, atoms can (and do!) fly away from solid into a vapor and vice verse all the tim... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Vapor_pressure"
],
[
"https://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Phase_diagram_of_water.svg/700px-Phase_diagram_of_water.svg.png",
"https://stevengoddard.files.wordpress.com/2010/09/co2_phase_diagram.gif"
],
[],
[]
] | |
hodzp | Are dental x-rays more dangerous than they're letting on? (Or Why is it that my vitals and reproductive organs need protection and my brain does not?) | I went to the dentist today. They tell me that they need some x-rays because it's been 6 months. First they pull out this big heavy led apron and cover up my vital organs and my crotch area. Then they point the gun directly at my brain, then they leave the room and from a safe distance zap the hell out of my brain.
Th... | askscience | http://www.reddit.com/r/askscience/comments/hodzp/are_dental_xrays_more_dangerous_than_theyre/ | {
"a_id": [
"c1x4n3c",
"c1x0fc7",
"c1x0gbm",
"c1x0h34",
"c1x14rz",
"c1x1uxq"
],
"score": [
3,
4,
35,
4,
11,
3
],
"text": [
"I took a ton of radiation safety classes because I operated/worked on nuclear reactors in the US Navy for several years. In those clas... | [] | [] | [
[],
[],
[],
[
"http://en.wikipedia.org/wiki/X-ray#Health_risks"
],
[
"http://www.nytimes.com/2010/11/23/us/23scan.html"
],
[
"http://www.reddit.com/r/askscience/comments/g312j/japanese_are_being_advised_to_close_doors_and/c1kl2s8"
]
] | |
1hwvmr | Why do humans see in the "visible" spectrum of light? Why not a higher, lower, larger or smaller spectrum? | askscience | http://www.reddit.com/r/askscience/comments/1hwvmr/why_do_humans_see_in_the_visible_spectrum_of/ | {
"a_id": [
"caypvps",
"cayrt9p",
"caywh7o",
"cazl3q1"
],
"score": [
19,
24,
9,
2
],
"text": [
"A couple of reasons.\n\nFirstly, the atmosphere isn't actually totally transparent. It blocks some wavelengths more than others. There's a couple of nice big transparent \"window... | [] | [] | [
[],
[
"http://www.apptechy.com/OpticalMeasure/Solar_Spectrum"
],
[
"http://www.handprint.com/HP/WCL/color1.html#monochromat",
"handprint.com",
"http://www.handprint.com/HP/WCL/IMG/pigspan.gif",
"http://www.handprint.com/HP/WCL/IMG/lumbias.gif"
],
[]
] | ||
2p7ea1 | what are the steps taken to ensure that mold doesn't grow in a bathroom? | I understand some people may have mold growing in their bathrooms but I don't have any in my bathroom and I shower everyday which causes a lot of water vapor in the air. Why haven't I seen mold growing from all that vapor?? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2p7ea1/eli5_what_are_the_steps_taken_to_ensure_that_mold/ | {
"a_id": [
"cmu4t2j"
],
"score": [
2
],
"text": [
"It can depend a lot on your climate, and how often the bathroom is cleaned. If you clean it often, or had very good grout put in to start with, then that makes it harder for mould to grow.\n\nVentilation is also a factor, if you have an extractor... | [] | [] | [
[]
] |
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