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 |
|---|---|---|---|---|---|---|---|---|---|
1u2ce3 | When will the Andromeda Galaxy be close enough to be visible to the naked eye? How big would it be in the night sky? | In reference to this post/picture: [Andromeda's actual size if it was brighter](_URL_0_).
At what point in time will the Andromeda Galaxy be close enough to be visible to the naked eye, perhaps not as bright as this picture depicts it. And, how big would it be in the night sky?
Thanks. | askscience | http://www.reddit.com/r/askscience/comments/1u2ce3/when_will_the_andromeda_galaxy_be_close_enough_to/ | {
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"text": [
"Andromeda is visible to the naked eye now, in decent light conditions. It has an apparent magnitude of 3.4. It is more than six times the width of the moon in the sky, but the full diameter is not bright enough to be seen."... | [] | [
"http://i.imgur.com/EpuhHJa.png"
] | [
[],
[
"http://science.nasa.gov/science-news/science-at-nasa/2012/31may_andromeda/",
"http://www.youtube.com/watch?v=PrIk6dKcdoU"
]
] | |
ptrs1 | How did Newton derive the Law of Universal Gravitation? | I just learned the Law of Universal Gravitation in my physics class, and I understand well what it means and how to use it to calculate gravity...but how did Newton derive it? I've done some Googling around but I can't find any solid step-by-step proof of it. | askscience | http://www.reddit.com/r/askscience/comments/ptrs1/how_did_newton_derive_the_law_of_universal/ | {
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"text": [
"Observations demonstrated that the planets in our solar system orbited the Sun in ellipses. Newton discovered through his investigation (IE invention) of Calculus that a body unde... | [] | [] | [
[],
[],
[],
[]
] | |
57rts5 | can the body repair a rupture of a spinal disk? | what happenes in the body when you rupture a disk in your spine and can the body repair or heal itself? what can happen if this condition is left untreated? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/57rts5/eli5can_the_body_repair_a_rupture_of_a_spinal_disk/ | {
"a_id": [
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"score": [
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"text": [
"So I ruptured the disk in my neck. The doctor explained it like this:\n\nThe disk is like a krispy Kreme doughnut. When it ruptures the jam inside spills out. It could split on the inside or on the outside. On the outside is not such a proble... | [] | [] | [
[]
] | |
89finh | Have there ever been a situation where a booming city or town went "out of business"? | Edit: Please ignore the title typo!
I'm not talking about an ancient city that was wiped out or something along those lines, I'm thinking of a situation where maybe a city was built around a valuable resource that was either made to be obsolete or diminished to nothing and the town could no longer afford to continue t... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/89finh/have_there_ever_been_a_situation_where_a_booming/ | {
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"dwqp4e7",
"dwqslg7",
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"score": [
14,
5,
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"text": [
"This sort of thing is THE hallmark (not just A hallmark!) of the Intermountain West. Towns frequently burst into existence around the discovery of an ore body with precious metal... | [] | [] | [
[],
[
"https://www.elmshotelandspa.com/",
"http://connection.ebscohost.com/c/articles/18086891/hucksters-pain"
],
[],
[]
] | |
5mxjni | why does your body temperature increase when you're nauseous and or vomiting? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5mxjni/eli5_why_does_your_body_temperature_increase_when/ | {
"a_id": [
"dc7250c"
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"text": [
"Body temperature doesn't increase because you're nauseous or vomiting.\n\n It rises so it can kill the intruder, like bacteria. \n\nVomiting happens so the body can get rid of the bacteria. I assume the main reason for vomiting is that the body t... | [] | [] | [
[]
] | ||
698f5i | why do kids and some adults jump up and down when excited or happy? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/698f5i/eli5_why_do_kids_and_some_adults_jump_up_and_down/ | {
"a_id": [
"dh4kjbd"
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"score": [
4
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"text": [
"Have you never done this? Never gotten so excited and filled with energy you just have to move? It's an energy release. We're also social animals and this is a way to express our excitement. \n\nPlus it's good for ventilation, moves the air aroun... | [] | [] | [
[]
] | |
415cpk | Did the U.S. Government encourage people to move to the suburbs during the Cold War in order to avert catastrophic population losses from nuclear attacks? | I'm reading [this article](_URL_0_), and it says:
> Postwar suburbanization and the expansion of transportation networks are occasionally overlooked, but weirdly crucial facets of the military-industrial complex. While suburbs were largely marketed to the public via barely concealed racism and the appeal of manicured... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/415cpk/did_the_us_government_encourage_people_to_move_to/ | {
"a_id": [
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"score": [
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2
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"text": [
"I've never found any evidence suggesting it did.\n\nKathleen Tobin has written [an article](_URL_0_) claiming that policymakers' fears of atomic attack was a significant factor in population dispersal. I find it to be an a... | [] | [
"http://www.nextgov.com/big-data/2016/01/70-percent-global-internet-traffic-goes-through-northern-virginia/124976/"
] | [
[
"https://pdf.yt/d/ngRmM9OYAqvydrAi"
],
[]
] | |
ec8io3 | how are roads on steep cliffs built? | Whenever I am driving through the mountains I always end up on a road going along the middle of a steep cliff and I've never understood how the road crews and engineers built the road on the first place. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ec8io3/eli5how_are_roads_on_steep_cliffs_built/ | {
"a_id": [
"fb9tvhn"
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"score": [
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"text": [
"Dynamite. I remember going on a hike somewhere in Utah and there was a trail that was originally going to be turned into a road but they just left it unfinished and made it a trail instead. You could see where they drilled the holes and were goin... | [] | [] | [
[]
] | |
16xr8c | Why is it so hard to distinguish between something that is cold versus something that is wet? | askscience | http://www.reddit.com/r/askscience/comments/16xr8c/why_is_it_so_hard_to_distinguish_between/ | {
"a_id": [
"c80cfw8"
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"score": [
2
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"text": [
"Gonna take a shot here.\n\nAn object feels cold because we're feeling heat transfer away from our skin. This is dependent on both the temperature difference between our skin and the object, and the heat insulation/transmission properties of both... | [] | [] | [
[]
] | ||
2u06kt | If I lived in the USSR during the purges, were there any choices or steps that I could take to guarantee my survival, and to what extent could this not require moral compromises like denouncing innocent neighbors? | For example: imagine if I volunteered myself and my family to work on a farm in a remote area. Might we avoid being denounced if we isolated ourselves in this way? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2u06kt/if_i_lived_in_the_ussr_during_the_purges_were/ | {
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"text": [
"There wasn't anything that would guarantee survival, but there were things you could do to increase your chances. Even in the worst years, 1937-1939, the number of people who were \"repressed\" (contem... | [] | [] | [
[],
[
"http://www.smithsonianmag.com/history/for-40-years-this-russian-family-was-cut-off-from-all-human-contact-unaware-of-world-war-ii-7354256/?no-ist"
],
[]
] | |
8skrco | how does 50% sodium salt exist? | As sodium is a fundamental ingredient to the molecular structure of salt with a 1:1 relationship, how does Morton or other salt companies create the same amount of salt but with something like 50% less sodium? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8skrco/eli5_how_does_50_sodium_salt_exist/ | {
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"text": [
"Well since salt is 50% Sodium and 50% Chloride technically speaking all salt is 50% sodium.",
"They displace sodium chloride with potassium chloride. It doesn’t taste exactly ... | [] | [] | [
[],
[
"https://www.mortonsalt.com/home-product/morton-lite-salt-mixture-2/"
],
[],
[]
] | |
1gnc53 | If only one photon goes through a double-slit, is there an interference pattern on the other side? | I've read this in the novel Improbable and have a few questions about it.
Most importantly: Do we know for sure that this happens?
And has the photon, which is a particle *and* a wave, therefore multiple positions?
Also, why would this change when the photon is observed? | askscience | http://www.reddit.com/r/askscience/comments/1gnc53/if_only_one_photon_goes_through_a_doubleslit_is/ | {
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"text": [
"Yes. Have a look [here](_URL_0_) for more information. \n\nIt's not so much that the photon has multiple positions as that its position is not known accurately. This uncertainty in the position allows the photon's wavefunct... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Double-slit_experiment#Interference_of_individual_particles"
],
[]
] | |
4d1w8x | Why can you rename, or change the path of, an open file in OS X but not Windows? | askscience | https://www.reddit.com/r/askscience/comments/4d1w8x/why_can_you_rename_or_change_the_path_of_an_open/ | {
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"score": [
2771,
184,
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68,
86,
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"text": [
"The Windows filesystem identifies files by their paths (including the file names)—if you change a file’s pa... | [] | [] | [
[],
[],
[],
[],
[
"http://pastebin.com/B5m3a0RM"
],
[],
[]
] | ||
2ehyhn | Is it just complete coincidence that the outline of the moon fits nicely inside that of the sun during an eclipse? And if so, what an amazing coincidence it is... | askscience | http://www.reddit.com/r/askscience/comments/2ehyhn/is_it_just_complete_coincidence_that_the_outline/ | {
"a_id": [
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"score": [
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11,
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"text": [
"It's only a co-incidence for here and now. A billion years ago the moon was a lot closer (tides would have been a bitch). In a billion years it will be a lot farther away.",
"The fact that the Mo... | [] | [] | [
[],
[],
[]
] | ||
x4i66 | If someone died and had their brain preserved, could we map their entire neural network? | Do we have the technology to analyze every synapse and neural connection, or is that only possible while they are living? | askscience | http://www.reddit.com/r/askscience/comments/x4i66/if_someone_died_and_had_their_brain_preserved/ | {
"a_id": [
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"text": [
"Yes, but a dead brain may look very different than a live brain. \n\nCurrently, in vivo techniques (MRI, PET, CT, etc...) do not have the resolution required to do this. Serial block imaging along with automated taping lathe ultramicrotome and he... | [] | [] | [
[
"http://www.guardian.co.uk/science/2012/may/07/quest-connectome-mapping-brain",
"http://www.ted.com/talks/sebastian_seung.html",
"http://bcs.mit.edu/people/seung.html"
]
] | |
odd4w | What percentage of lift is generated by the shape of an airplane wing and what percent is generated by the angle of attack? | 10 degree angle of attack, Clark Y airfoil with aspect ratio of 6. _URL_0_
| askscience | http://www.reddit.com/r/askscience/comments/odd4w/what_percentage_of_lift_is_generated_by_the_shape/ | {
"a_id": [
"c3gca2v"
],
"score": [
2
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"text": [
"Well, depends what kind of wing it is, first of all. Secondly, speed, pressure altitude, temperature, etc. Tons of variables to consider here aside from the shape of the airfoil and the AoA.\n\n\nWould be a good question for [/r/AskEngineers](/r/... | [] | [
"http://en.wikipedia.org/wiki/File:Lift_drag_graph.JPG"
] | [
[]
] | |
1lnt5k | Is everything at least a tiny bit soluble in water? | Wikipedia, without citation, states:
> [The extent of solubility ranges widely, from infinitely soluble...such as ethanol in water, to poorly soluble, such as silver chloride in water. The term insoluble is often applied to poorly or very poorly soluble compounds.](_URL_0_)
Which leads to two questions:
1. Would a ... | askscience | http://www.reddit.com/r/askscience/comments/1lnt5k/is_everything_at_least_a_tiny_bit_soluble_in_water/ | {
"a_id": [
"cc147f8"
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"text": [
"Enough energy isn't the problem, there's more than enough in a macroscopic amount of water, it's the probability of having enough energy in one spot (e.g. a single carbon atom) to cause the reaction you want (the carbon atom dissociating). The pr... | [] | [
"http://en.wikipedia.org/wiki/Solubility"
] | [
[]
] | |
4ul7wc | How does physics address the situation in Zeno's arrow paradox? (This is not the same as the Achilles and tortoise paradox) | [deleted] | askscience | https://www.reddit.com/r/askscience/comments/4ul7wc/how_does_physics_address_the_situation_in_zenos/ | {
"a_id": [
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"score": [
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"text": [
"Velocity cannot be determined by the position of the arrow at one given instant of time. So you can't say \"at an instant in time, the arrow is still and not moving\". You have no idea whether the arrow is moving or not moving. You need at least ... | [] | [] | [
[]
] | |
3s6vio | how does preloading games on apps such as steam work? | I understand that it gives you a download before the game is released so you can play as soon as it is released. I don't understand how once you have the game files it can still restrict you from playing. Is there another final component to download or..? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3s6vio/eli5_how_does_preloading_games_on_apps_such_as/ | {
"a_id": [
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"text": [
"Two ways:\n\n1. The game files are encrypted, and the decryption key is given only when the game is released.\n\n2. Most of the game files are assets such as music, textures and models. The actual game executable is relatively small. Preloading d... | [] | [] | [
[]
] | |
6i9e1k | Are there any nuclear fusion processes that don't give off excess energy? | Take hydrogen fusion in a star, for example. Under intense gravitational pressure, two hydrogen atoms shack up and become helium. Much like a newlywed couple that moves in together, they don't need two toaster ovens - in fact they don't even have the space, so the excess luggage is discarded (one helium atom consists o... | askscience | https://www.reddit.com/r/askscience/comments/6i9e1k/are_there_any_nuclear_fusion_processes_that_dont/ | {
"a_id": [
"dj4jfj7"
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"score": [
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"text": [
"Yes, many fusion reactions don't release energy, but *take* energy instead. Generally, fusion of two heavy nuclei will be endothermic."
]
} | [] | [] | [
[]
] | |
bxgaim | when you google a certain store or restaurant and it gives you a bar chart of peak times, where does the data come from? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bxgaim/eli5_when_you_google_a_certain_store_or/ | {
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5,
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"text": [
"When you have Google Maps, you can turn on location tracking to help Google learn certain tasks. For example, it will learn where your home and work are, and what route you usually take to get there, ... | [] | [] | [
[
"https://imgur.com/iFiaD3R"
],
[
"https://support.google.com/maps/answer/6258979?co=GENIE.Platform%3DAndroid&hl=en"
],
[]
] | ||
jvijf | Why do we get frustrated? | What is the evolutionary advantage of being so frustrated that you are willing to shake a baby? | askscience | http://www.reddit.com/r/askscience/comments/jvijf/why_do_we_get_frustrated/ | {
"a_id": [
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"score": [
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10
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"text": [
"Just because we do it, doesn't mean there is an evolutionary advantage or that it is even related to evolution.\n\n\n\nWe get frustrated because we are inherently selfish beings who want to succeed. Failure to succeed or ... | [] | [] | [
[],
[]
] | |
7qlr9j | why can we listen to music at a loud volume, but once it cuts to a commercial or someone talking, it sounds a lot louder? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7qlr9j/eli5_why_can_we_listen_to_music_at_a_loud_volume/ | {
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"text": [
"Unfortunately certain media volumes are not regulated - television shows themselves might be at a uniform volume, but there's nothing forcing advertisers to make their commercials ... | [] | [] | [
[],
[],
[],
[]
] | ||
4xtleh | Can ohms law be applied to any circuit? | askscience | https://www.reddit.com/r/askscience/comments/4xtleh/can_ohms_law_be_applied_to_any_circuit/ | {
"a_id": [
"d6iuw4p"
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"score": [
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"text": [
"No, Ohm's law is a special case. In general, the relationship between the voltage you apply across a given circuit element to the current that flows through it (or current density to electric field) is not linear.\n\nFor example, see diodes, tran... | [] | [] | [
[]
] | ||
1s8gmg | How long did it take for Poland's post-WWI borders to be established? | The Polish state was established via the Treaty of Versailles, but how long did it take until the borders Poland had before WWII were established? I remember reading about plebstices and some about the war with the Soviets but could someone with knowledge of the subject elaborate? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1s8gmg/how_long_did_it_take_for_polands_postwwi_borders/ | {
"a_id": [
"cdv8qfs"
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"score": [
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"text": [
"The Versailles Treaty in 1919 assigned to Poland the territories of Poznan (Great Poland) and Gdansk Pomerania (is Germany and the West also known as Western Prussia or Danzig Corridor) and decided that Upper Silesia and southern part of the East... | [] | [] | [
[]
] | |
e9ec7i | Has there been a change in how academic history is written over the years? | I was reading a few different threads recently, and a similar concept of "it's not about the (quality) of the older sources per se, it's about how they're read". This was sort of in reference to misrepresentations, mistakes or just general "bad" history.
It got me thinking: reading primary/secondary/etc. Sources is a ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/e9ec7i/has_there_been_a_change_in_how_academic_history/ | {
"a_id": [
"fajmoly"
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"score": [
5
],
"text": [
"There have been overall shifts, but there is also a \"horizontal\" diversity in the approach taken by historians, based on different theoretical models. Today, almost any good academic history will contain a section discussing its methodology. Ac... | [] | [] | [
[]
] | |
couvu4 | What happened to Supersymmetry? | I haven’t been following Supersymmetry at all but I have noticed that it’s not mentioned quite as often as before. | askscience | https://www.reddit.com/r/askscience/comments/couvu4/what_happened_to_supersymmetry/ | {
"a_id": [
"ewm4s0k",
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"score": [
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2
],
"text": [
"A little background info first: in particle physics you begin with the so-called \"Standard Model\". It's kind of like the periodic table of the elements, cataloguing and grouping the known fundamental particles. It's not ju... | [] | [] | [
[],
[]
] | |
11fc51 | After the Big Bang, why does matter only exist in pockets of galaxies? Why is it not more 'homogeneous'? | Or is the universe more homogeneous than we think it is? Why isn't there more 'stuff' in the huge space between galaxies? | askscience | http://www.reddit.com/r/askscience/comments/11fc51/after_the_big_bang_why_does_matter_only_exist_in/ | {
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"score": [
63,
12,
58,
2
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"text": [
"Gravity. If there's any initial fluctuation at all, everything condenses down to points and filaments under gravity.\n\nHere's a cool video of a calculation exploring how this ... | [] | [] | [
[
"http://cosmicweb.uchicago.edu/filaments.html",
"http://en.wikipedia.org/wiki/Structure_formation",
"http://www.youtube.com/watch?v=8UzVi8MJolo"
],
[
"http://apod.nasa.gov/apod/image/0302/sky_wmap_big.jpg"
],
[],
[]
] | |
1o2m99 | Why did France (West Francia) end up more unified than the rest of the Holy Roman Empire (East Francia)? | Was this influenced by the invasion of the Normans? Was terrain a significant factor? Did the successors of Charlemagne have drastically-different methods of rule? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1o2m99/why_did_france_west_francia_end_up_more_unified/ | {
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27,
3,
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2
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"text": [
"During what era? Because France wasn't particularly unified until Richelieu.",
"By West Francia and East Francia I am assuming you mean the kingdoms con... | [] | [] | [
[],
[
"http://www.amazon.com/Early-Carolingian-Warfare-Prelude-Empire/dp/0812221443",
"http://www.amazon.com/Struggle-Empire-Kingship-Conflict-Conjunctions/dp/0801475295"
],
[],
[],
[]
] | |
5sv01u | How are the wave functions of antiparticles related to those of their "normal" counterparts? | This might be a kind of simplistic view of how wavefunctions work, but are wavefunctions of particles and antiparticles a sort of "complex negative" of each other, allowing the particles to cancel each other out and emit their energy as photons?
How does one mathematically describe particle/antiparticle annihilation? | askscience | https://www.reddit.com/r/askscience/comments/5sv01u/how_are_the_wave_functions_of_antiparticles/ | {
"a_id": [
"ddi9ptw",
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6,
3,
3
],
"text": [
"When you're talking about particles and antiparticles, you're generally outside the regime of standard one-body, nonrelativistic quantum mechanics. So the notion of a wavefunction is sort of abandoned.\... | [] | [] | [
[
"https://upload.wikimedia.org/wikipedia/en/f/f4/Feynman_Diagram_of_Electron-Positron_Annihilation_v2.png"
],
[],
[]
] | |
2j7lhy | why do we grow hair in specific places? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2j7lhy/eli5_why_do_we_grow_hair_in_specific_places/ | {
"a_id": [
"cl93nu8",
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"score": [
12,
7
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"text": [
"Hair in armpits and groin is a dry lubricant, hair on your head is sun protection, men's facial hair is a sexual marker. ",
"I actually had this question in my head, so I'll add on about something else which has been bo... | [] | [] | [
[],
[]
] | ||
ah5zu9 | How did soldiers know the names of enemy weapons and equipment? | This may be a simple answer, but I've always wondered how in the middle of a war soldiers would know the names of equipment of their enemies. Taking WW2 for example, how did they know that the MG-42's were actually called that by the Germans? Was it from POWs? Or did the Germans publish the names of their equipment in ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/ah5zu9/how_did_soldiers_know_the_names_of_enemy_weapons/ | {
"a_id": [
"eec6xrn"
],
"score": [
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],
"text": [
"u/kieslowskifan has an answer to this! \n\n_URL_0_ "
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/aetyc7/how_did_allied_forces_discover_the_names_of/"
]
] | |
dtclmy | when you suck on an m & m, why does it feel smooth, then rough, then smooth again? | If you haven't tried it before, try it now. Go on, you deserve it. Notice how it feels smooth, then feels rough, and then the rough kinda licks off? Yeah, please ELI5 why this is. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dtclmy/eli5_when_you_suck_on_an_mm_why_does_it_feel/ | {
"a_id": [
"f6vw004"
],
"score": [
8
],
"text": [
"The smooth part is likely the candy glaze, the rough would be the actual shell of the m & m and then the chocolate."
]
} | [] | [] | [
[]
] | |
2jsdk8 | During the Spanish Reconquista, did much of the Muslim population convert to Catholicism? | Or was Muslim population driven out or killed? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2jsdk8/during_the_spanish_reconquista_did_much_of_the/ | {
"a_id": [
"cley5bb",
"clf4omh"
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"score": [
4,
6
],
"text": [
"Follow up question, during Muslim Iberia what per centage of the population stayed christian?",
"Different states treated the Muslims differently.\n\nCastile and it's possessions were known to be extremely aggressive tow... | [] | [] | [
[],
[]
] | |
80x47m | how and why did apa become the standard for referencing sources? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/80x47m/eli5_how_and_why_did_apa_become_the_standard_for/ | {
"a_id": [
"duyvp19"
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"score": [
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"text": [
"In research papers for publication, it's usually *not* standard (at least in most of the journals I am familiar with), partly due to the simple reason that in printed material *words cost money.* It's more common in review articles, perhaps becau... | [] | [] | [
[]
] | ||
23khvf | is a 200hp car two times faster than a 100hp car? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/23khvf/eli5_is_a_200hp_car_two_times_faster_than_a_100hp/ | {
"a_id": [
"cgxwc2o",
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"score": [
3,
3,
2
],
"text": [
"No, it just has twice as much health",
"Most likely not. The horsepower is a rating of the power output of the engine, but the power consumption of a car doesn't usually scale linearly with speed. F... | [] | [] | [
[],
[],
[
"http://phors.locost7.info/phors06.htm"
]
] | ||
4xkant | why do actors tend to put themselves as "executive producers" & "producers" after being in a television show for a while? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4xkant/eli5_why_do_actors_tend_to_put_themselves_as/ | {
"a_id": [
"d6g4l6u",
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"score": [
8,
2
],
"text": [
"This indicates they are not only acting in the show, but taking a stronger creative or production role *behind the scenes*. They are working on MAKING the show in addition to appearing on screen, but not every actor makes th... | [] | [] | [
[],
[]
] | ||
a1dbzg | Is there a historical consensus about the girls who started the accusations of the Salem Witch Trials? Were they put up to it by others? Were they psychopaths? Did they actually believe they were being afflicted by witchcraft? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/a1dbzg/is_there_a_historical_consensus_about_the_girls/ | {
"a_id": [
"eaq17dm"
],
"score": [
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],
"text": [
"To add to what the others have said, those accusers who had suffered from the conflict with neighbouring Indians had had their lives upended. Those who were orphaned were now living with relatives or friends of their late parents, and those whos... | [] | [] | [
[]
] | ||
2qsztg | No Irish Need Apply - how badly were Irish discriminated against in 1840's - 1930's America? | I was listening to the song 'No Irish Need Apply' and decided to look it up. There's newspaper ads that show that 'No Irish Need Apply' was a thing, but I keep seeing references to a paper by Richard Jensen (retired Professor of History, University of Illinois, Chicago) saying they didn't exist, and that all the eviden... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2qsztg/no_irish_need_apply_how_badly_were_irish/ | {
"a_id": [
"cn9jzar",
"cn9qojx"
],
"score": [
6,
2
],
"text": [
"I am not a historian, but the Library of Congress has a good overview with source documents [here](_URL_0_).",
"As a follow up question, how about in the same period in Great Britain?"
]
} | [] | [] | [
[
"http://www.loc.gov/teachers/classroommaterials/presentationsandactivities/presentations/immigration/irish5.html"
],
[]
] | |
8mgbye | How Are The Chauvet Cave Drawings Still There? | I was reading about the Chauvet Cave drawings in France, which are around 30k years old. From what I've read it seems they were made with charcoal from fires. So my question is, how are they still there? Why havent they been removed from erosion or something? Even if they were in some cave far away from wind and water;... | askscience | https://www.reddit.com/r/askscience/comments/8mgbye/how_are_the_chauvet_cave_drawings_still_there/ | {
"a_id": [
"dzoea8h",
"dzwpwdh"
],
"score": [
2,
2
],
"text": [
"Yes, they are. It's amazing they are still preserved - there are likely countless of other drawings from the period that weren't.\n\nAccess to the drawings is very limited. Here's an account from 2015 by a reporter who was g... | [] | [] | [
[
"https://www.smithsonianmag.com/arts-culture/only-handful-people-can-enter-chauvet-cave-each-year-our-reporter-was-one-them-180954981/"
],
[]
] | |
4it3h5 | the tingling sound in total silence | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4it3h5/eli5the_tingling_sound_in_total_silence/ | {
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"text": [
"It's your ears trying to make up for that lack of sound you're not hearing. Same thing goes for the tingling/numb feeling you get when your appendages fall ... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
3plvye | why is the metric system so perfect in regards to water mass versus weight? | I'm not entirely sure how to word this but basically i'm wanting to know how and what the metric system is designed or based around.
Mainly the fact around 1sq cm equals 1 gram of water and this obviously transfers to 1sqm equals 1 ton etc etc
so i this just pure universe coincidence that weights and sizes mesh so pe... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3plvye/eli5why_is_the_metric_system_so_perfect_in/ | {
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"cw7eknp",
"cw7eq9x",
"cw7ev51",
"cw7frld"
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"score": [
6,
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2,
2
],
"text": [
"It's originally designed this way. Units in the SI system are all defined by certain basic quantities, like a liter of water or one Kelvin, or one meter and so on.\n\nex: a kilocal... | [] | [] | [
[],
[],
[],
[]
] | |
g63l6 | Are 98% of the atoms in the human body replaced every year? | In my World Religions class, the teacher presented an article that stated that 98% of atoms in the human body are replaced every year. This was to spark a discussion about whether "we are this body" or whether we have some kind of spirit soul.
The direct quote from the article is:
> Studies at the Oak Ridge Atomic... | askscience | http://www.reddit.com/r/askscience/comments/g63l6/are_98_of_the_atoms_in_the_human_body_replaced/ | {
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"score": [
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7,
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6,
2,
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"text": [
"I looked around for an answer to this, but I couldn't find the original article cited, which... | [] | [] | [
[
"http://stevegrand.wordpress.com/2009/01/12/where-do-those-damn-atoms-go/"
],
[
"http://www.time.com/time/magazine/article/0,9171,936455,00.html"
],
[],
[
"http://www.npr.org/templates/transcript/transcript.php?storyId=11893583"
],
[],
[
"http://en.wikipedia.org/wiki/Identical_part... | |
34qxqd | Why are White House meeting minutes recorded and kept? | This occured to me after watching a cold war documentary. Obviously it's extremely useful for historians, but why minutes are kept? Is there a law that mandates that? And for what reason?
ps: I posted the same question a year ago and didn't get any answer :( | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/34qxqd/why_are_white_house_meeting_minutes_recorded_and/ | {
"a_id": [
"cqxj05o"
],
"score": [
11
],
"text": [
"[Here is a paragraph from the University of Oregon Holden Leadership Center on record keeping during meetings:](_URL_0_)\n\n > As you can see, the role of a secretary is more than \"just taking minutes\". The secretary is in effect, the historia... | [] | [] | [
[
"http://leadership.uoregon.edu/resources/exercises_tips/organization/keeping_minutes"
]
] | |
2shcvj | Do LED lightbulb work in extreme cold temperatures? | I could not find a definitive answer whether they can be used for outdoor lighting. By extreme cold, it would down to -40F. | askscience | http://www.reddit.com/r/askscience/comments/2shcvj/do_led_lightbulb_work_in_extreme_cold_temperatures/ | {
"a_id": [
"cnqhjap"
],
"score": [
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],
"text": [
"The operating temperature of the LED will depend on the design of the device, typically -40F is at or below the lower limit of silicon devices, (this will generally be shown on the device datasheet).\nLithonia Lighting OFLR 6 MO 's datasheet quot... | [] | [] | [
[]
] | |
2gzm63 | why didn’t the Ancient Egyptians conquer the rest of North Africa to the west of them? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2gzm63/why_didnt_the_ancient_egyptians_conquer_the_rest/ | {
"a_id": [
"cko4cni",
"cko4gmo",
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"score": [
68,
11,
27
],
"text": [
"The Western/Libyan Desert is 1000 km north to south and 1000 km east to west and largely blocks access out of the Nile and Nile Delta.\n\nAs we saw in the WW 2 desert campaign, the Western Desert mak... | [] | [] | [
[],
[],
[]
] | ||
2y5uju | how does keeping an avocado seed with the raw avocado 'meat' keep it from browning? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2y5uju/eli5_how_does_keeping_an_avocado_seed_with_the/ | {
"a_id": [
"cp6i1kv",
"cp6i4ly"
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"score": [
3,
2
],
"text": [
"[Here's a pretty good write-up of why Avocados turn brown](_URL_0_)\n\nIn short, it's the exposure to oxygen that makes the flesh turn brown. Keeping the stone (seed) with the meat does not prevent this in any way.\n\nFun fa... | [] | [] | [
[
"http://www.compoundchem.com/2014/08/03/why-do-avocados-turn-brown-the-chemistry-of-avocados/"
],
[]
] | ||
dfmq7e | why are tiff files so large? | I have a Panasonic G85 that produces 18MP raw files. But if I edit in PS, even without adding layers, the resultant tiff files are around 150MP. Where is all this extra data coming from? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dfmq7e/eli5_why_are_tiff_files_so_large/ | {
"a_id": [
"f34cgdw",
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"score": [
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],
"text": [
"1. TIFF (also known as TIF), file types ending in .tif\nTIFF stands for Tagged Image File Format. TIFF images create very large file sizes. TIFF images are uncompressed and thus contain a lot of detailed image data (which is... | [] | [] | [
[
"https://www.ivanexpert.com/blog/2010/05/the-5-types-of-digital-image-files-tiff-jpeg-gif-png-and-raw-image-files-and-when-to-use-each-one/"
],
[]
] | |
ebnkco | how do we develop crushes on people? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ebnkco/eli5_how_do_we_develop_crushes_on_people/ | {
"a_id": [
"fb64sg2",
"fb6hkq0"
],
"score": [
5,
15
],
"text": [
"you see someone you find attractive and then you get a bone bone and decide that you want to make a hooman with them",
"Lots of different reasons. Most influential factors include:\n- Proximity: You’re more likely to ha... | [] | [] | [
[],
[]
] | ||
29qo5i | why charities with similar goals don't merge to become more effective? | I saw today on my Facebook newsfeed of a video for I already forgot the name but a charity that provides clean drinking water to poor villages in Africa.
I am all for the cause because everyone in the world should have clean water at a bare minimum. That said, I know I have seen at least 2 other charities with the sa... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/29qo5i/eli5_why_charities_with_similar_goals_dont_merge/ | {
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"cinj0gg",
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"cinori5",
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"cio3jl8"
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"score": [
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"text": [
"That would require a lot of profit sharing for... | [] | [] | [
[],
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Age_UK"
],
[],
[],
[]
] | |
22s0k5 | why are endorphins not used as the ultimate drug? | At the end of thr day drugs are taken so thr user will feel better, why don't we see people injecting this or any other happy hormones? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/22s0k5/eli5_why_are_endorphins_not_used_as_the_ultimate/ | {
"a_id": [
"cgps4cl",
"cgpsdab"
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"score": [
12,
16
],
"text": [
"They are. Heroin and opioid/opiate narcotics are basically just synthetic endorphins. ",
"Endorphins can't cross the blood-brain barrier. Injecting or injesting them won't actually do anything, because they won't get t... | [] | [] | [
[],
[]
] | |
5birw9 | if pre-election polling is mostly done by phone interviews via landline, and the number of landlines is declining among most demographic groups, why are they still fairly accurate? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5birw9/eli5_if_preelection_polling_is_mostly_done_by/ | {
"a_id": [
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"score": [
51,
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"text": [
"It is not accurate that \"... poling is mostly done by phone interviews via landline\". Actual polling companies call cellphones and have non-phone ways of reaching people. \"Poll... | [] | [] | [
[],
[],
[
"https://itunes.apple.com/us/podcast/npr-politics-podcast/id1057255460?mt=2&i=377528353"
],
[]
] | ||
6rgsbx | What makes meth labs so dangerous? | It's widely known that meth labs are practically ticking time bombs, but what actually causes the explosion? | askscience | https://www.reddit.com/r/askscience/comments/6rgsbx/what_makes_meth_labs_so_dangerous/ | {
"a_id": [
"dl5p8o4"
],
"score": [
10
],
"text": [
"because they're attempting to replicate processes that are normally carried out in a _URL_2_, but without the design of engineers, construction with appropriate materials or operation by trained experts. Instead they're copying instructions fro... | [] | [] | [
[
"https://en.wikipedia.org/wiki/MPTP#Discovery_in_users_of_illicit_drugs",
"https://www.youtube.com/watch?v=7MxsKkAnLC0",
"https://en.wikipedia.org/wiki/Chemical_plant"
]
] | |
19knsp | What is the affect of aging on sex cells in humans, and how is DNA preserved to pass on to offspring? | This might be an oversimplification but if aging is a result of sustained DNA damage during cell division, how is the DNA in reproductive cells preserved to pass on to offspring? | askscience | http://www.reddit.com/r/askscience/comments/19knsp/what_is_the_affect_of_aging_on_sex_cells_in/ | {
"a_id": [
"c8oxcdo"
],
"score": [
3
],
"text": [
"The [germ cell line](_URL_2_) is separated from the rest of the developing organism early in development, and is kept in a state of minimal cell division and protection from metabolic damage. There is still degradation of the genetic material in ... | [] | [] | [
[
"http://link.springer.com/chapter/10.1007%2F978-0-85729-826-3_3?LI=true",
"http://humupd.oxfordjournals.org/content/10/4/327.short",
"http://en.wikipedia.org/wiki/Germ_cell"
]
] | |
26hc0e | Can anyone identify the markings on this rock in my front yard? (Buffalo, NY) | _URL_0_ This has been in my yard since the house was built 100 years ago in North Buffalo. What is this, a cornerstone, headstone? It's just sitting in the middle of my yard almost as it isn't mean to be moved. It's about 6 inches by 6 inches. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/26hc0e/can_anyone_identify_the_markings_on_this_rock_in/ | {
"a_id": [
"chre35z"
],
"score": [
3
],
"text": [
"You'll probably get more help over at /r/whatisthisthing, the appropriate subreddit for these kinds of questions."
]
} | [] | [
"http://imgur.com/zWX6WZW"
] | [
[]
] | |
19x933 | how did the golden eye disk hold a full game and an emulator with 10 games only on 12mb? | If an album is like 80 mb how do they have all the textures and a.i and music, plus this emulator I just read about? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/19x933/eli5_how_did_the_golden_eye_disk_hold_a_full_game/ | {
"a_id": [
"c8s51qg",
"c8s5514",
"c8samuj"
],
"score": [
3,
3,
2
],
"text": [
"It is a game contained in a ROM and the emulator is what allows you to play access the ROM. There is not as much data as you think.",
"I'm pretty sure the music is synthesized. The music actually s... | [] | [] | [
[],
[],
[]
] | |
2msxdo | how do the big torrent uploaders like yify, eztv, etc, not get caught? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2msxdo/eli5_how_do_the_big_torrent_uploaders_like_yify/ | {
"a_id": [
"cm7p0wu",
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"score": [
11,
6
],
"text": [
"There can be many reasons:\n\n- hiding behind a VPN or TOR or another proxy, or all of those; remember that there still are countries where piracy is not regulated by law\n- initial seeding from a remote server\n- actually ... | [] | [] | [
[],
[]
] | ||
5kuu9h | what is the difference between "_url_1_" and "_url_0_"? i know that they are one and the same, but in general i want to understand how the domain name works. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5kuu9h/eli5_what_is_the_difference_between/ | {
"a_id": [
"dbqu86j",
"dbqwtjq",
"dbqwx6x",
"dbr2iun",
"dbr33b3"
],
"score": [
10,
9,
2,
3,
3
],
"text": [
"_URL_0_ is what is called a subdomain. _URL_1_ is called a subdirectory. Pretty much the same on the server side except that a subdirectory is within a domai... | [
"mail.google.com",
"www.google.com/mail"
] | [] | [
[
"Mail.google.com",
"Google.com/mail"
],
[
"http://mail.google.com",
"http://www.google.com/mail",
"www.google.com/mail",
"mail.google.com",
"http://mail.google.com/",
"www.google.com"
],
[
"ftp.google.com",
"yomama.google.com",
"mail.google.com",
"google.com... | ||
l1bnx | what exactly happened to gandalf after the snafu at moria? | This was always one of those plot points I could never really wrap my head around. I understand that he became Gandalf the White, but did he die? Did he have some sort of epiphany? Is he the same person?
The books confused me and then when I saw the movies I was even more confused. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/l1bnx/eli5_what_exactly_happened_to_gandalf_after_the/ | {
"a_id": [
"c2oyukp",
"c2oyzqm",
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"c2oyzqm"
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"score": [
5,
3,
5,
3
],
"text": [
"He slays the beast. He dies. While dead, he does things in the afterlife which he never talks about. He is reborn as the white, for I imagine his bravery, valor, and just doing ... | [] | [] | [
[],
[],
[],
[]
] | |
8mktot | Did ancient Israel abolish or prohibit slaveowning in any way after the Exodus from Egypt? Was it socially frowned upon to own slaves? | This has less to do with the historical truth of the Exodus and more the Israelite society allegedly being founded by ex-slaves. After whatever event freed the Israelites from Egyptian rule, how was slavery perceived in the society and amongst its people? How was it treated legally? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8mktot/did_ancient_israel_abolish_or_prohibit/ | {
"a_id": [
"dzomol0"
],
"score": [
12
],
"text": [
"EDIT: Just to be clear, not a historian, but I’ve been reading this book for the past ten years, I think I know a little bit about it.\n\nThe Law actually says a lot about slaves and servants and how you were to treat them. How well they followe... | [] | [] | [
[]
] | |
rtfag | Someone I met got me curious... in the early days of America, mineral surveyors would cross the country looking for metal deposits. How exactly did the bore into rocks and test things without modern equipment? | As the title explains, prior to air hammers and hollow drills, how did men effectively bore through rocks to get samples using their muscles and (I assume) some rough implements? If there is some good reading on the subject, that would be perfect. | askscience | http://www.reddit.com/r/askscience/comments/rtfag/someone_i_met_got_me_curious_in_the_early_days_of/ | {
"a_id": [
"c48jsp1"
],
"score": [
9
],
"text": [
"A lot of it boils down to understanding the geology itself. If you can recognise evidence of (for example) a large igneous porphyry body you might take a good guess at there being workable amounts of copper mineralisation.\n\n\nAlternatively, sim... | [] | [] | [
[]
] | |
66feuh | cryptocurrency mining. what is the process and why is a gpu required? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/66feuh/eli5_cryptocurrency_mining_what_is_the_process/ | {
"a_id": [
"dgi402n"
],
"score": [
2
],
"text": [
"Currency has value in part because it is rare. If you can get however much of it you want, it becomes worthless. Imagine you can just print off $100 bills from home and they count as real dollars. Why, then, would I sell you, I dunno, a used b... | [] | [] | [
[]
] | ||
8u2m40 | if a 213g potato has .2g of fat, 4.3g of protein, and 37g of carbs, what is the other 171.5g? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8u2m40/eli5_if_a_213g_potato_has_2g_of_fat_43g_of/ | {
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"text": [
"Net carbs? If yes, most of the rest is fiber",
"Water, fibre, and other things that humans don't digest into energy."
]
} | [] | [] | [
[],
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24pyyq | Gigantic Black Holes in galaxy centers keeps 'devouring' matter. Why doesn't that eventually result in whole galaxies being consumed and merging into single immense 'holes' with all galactic mass inside them? | Doesn't adding matter to a black hole increase its gravitational 'pull'?
If the sun for example magically doubled its mass wouldn't the planets be pulled closer and closer? | askscience | http://www.reddit.com/r/askscience/comments/24pyyq/gigantic_black_holes_in_galaxy_centers_keeps/ | {
"a_id": [
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"text": [
"The planets don't fall into the Sun because they basically \"keep missing\" when they fall towards it, hence going around in elliptical orbits. Matter around a black hole is essentially the same. The gas and dust orbiting a ... | [] | [] | [
[],
[]
] | |
41klye | Not quite connecting the whole Franks, Alemanni, Charlemagne, Holy Roman Empire, and France thing. | From what I thought was right before, the Franks settled in Gaul and the Alemanni conquered a lot of central Europe/ northern and central Italy/ Frankish Gaul and made the Holy Roman Empire under Charlemagne. Now I'm learning that Charlemagne was ruler of the Franks, but that means the Franks made the HRE. But the Fran... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/41klye/not_quite_connecting_the_whole_franks_alemanni/ | {
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"Charlemagne, at his death, ruled an Empire encompassing modern day France (sans Brittany), the Pyrenees, Austria, Switzerland, the low countries, the northern half of Italy, and the majority of modern Germany. After his death, his son Louis I cam... | [] | [] | [
[
"https://upload.wikimedia.org/wikipedia/commons/4/42/Partage_de_l'Empire_carolingien_au_Trait%C3%A9_de_Verdun_en_843.JPG"
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] | |
6sdq4x | Can bees tell the difference between their own hive's honey and another hive's honey? | askscience | https://www.reddit.com/r/askscience/comments/6sdq4x/can_bees_tell_the_difference_between_their_own/ | {
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"Well they certainly know the difference between their hive and other hives, even if there are several of them adjacent to each other. \n\nHoneybees will also rob other hives of their honey if food is scarce. This is intentio... | [] | [] | [
[],
[
"https://youtu.be/exsrX6qsKkA"
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4z2wxw | if you sweat salt does that mean your body needs more salt or it already had too much? | If that's a sign the body needs more then why is it that drinking salt water can kill you, but adding salt to water won't? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4z2wxw/eli5if_you_sweat_salt_does_that_mean_your_body/ | {
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"text": [
"One of those pesky \"electrolytes\" all these sports drink companies are trying to sell us on buying, salt (or sodium, if you prefer) is necessary for proper bodily function.\n\nSea water has a an average content of about 35... | [] | [] | [
[],
[]
] | |
1h1t5v | How does the body build tolerance to caffeine? | In addition to building tolerance to its mental effects, how does the body become tolerant to its diuretic effects? | askscience | http://www.reddit.com/r/askscience/comments/1h1t5v/how_does_the_body_build_tolerance_to_caffeine/ | {
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"By regulation of the number of receptors sensitive to caffeine on the cell membrane.\n\nCaffeine functions by inhibiting adenosine receptors in the brain, which we believe is involved in our biological clocks. After prolonged exposure to caffein... | [] | [] | [
[]
] | |
6su659 | Why are there nuclear-powered subs and aircraft carriers but no nuclear-powered airplanes? | askscience | https://www.reddit.com/r/askscience/comments/6su659/why_are_there_nuclearpowered_subs_and_aircraft/ | {
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"This was experimented with a bit in the '50s by both the Americans and the Soviets. The main issue is that to protect the crew from radiation you need a lot of heavy shielding, and this makes it difficult to fly. \n\n_URL_... | [] | [] | [
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"https://en.wikipedia.org/wiki/Nuclear-powered_aircraft"
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kq793 | Physics problem that has been plaguing me since high school. | Hypothetical situation. Lets say you have a fighter airplane that flies at a maximum velocity of (just throwing numbers out there) 100 m/s. This plane can fire missiles, which travel at 200m/s. If the plane is flying at 100m/s and fires the missiles, the missiles would travel faster than 200m/s, right?
Ok. So what ... | askscience | http://www.reddit.com/r/askscience/comments/kq793/physics_problem_that_has_been_plaguing_me_since/ | {
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141c9n | what is the impact of palestine being promoted to "non-member observer status" in the un? | Will this lead to any change in the Israeli-Palestine conflict?
What does the future look like now for Palestinians? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/141c9n/eli5_what_is_the_impact_of_palestine_being/ | {
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"It's not a full UN membership but it's a more symbolic move since it gives them more status than before. They are now on the same level as the Vatican and Switzerland (until a few years ago). \n\nIf they now try to join the international crimina... | [] | [] | [
[]
] | |
1igbw4 | What were Pinkerton agents duties, roles, etc. in 1890-1912? | Hi Historians. I stumbled upon this question while playing bioshock Infinate. The search on Pinkertons didn't give me an answer, so my question is as follows.
In bioshock infinate, the main character refers to himself as a former Pinkerton agent. This is brought up a few times, mostly around the times where we see fac... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1igbw4/what_were_pinkerton_agents_duties_roles_etc_in/ | {
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"text": [
"Pinkertons were part of a huge private detective agency that was essentially the Black Water of the 19th century. One of the Pinkerton's specialties was strikebreaking. Employers would hire the company to provide thugs that would stop strikes i... | [] | [] | [
[]
] | |
3e0noc | How would one derive electricity from post-fusion plasma? | I know how fusion works, my question though is how to change from high energy plasma to electrical current. | askscience | http://www.reddit.com/r/askscience/comments/3e0noc/how_would_one_derive_electricity_from_postfusion/ | {
"a_id": [
"ctam2fs",
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"score": [
7,
2
],
"text": [
"Boil water.\n\nThat is how pretty much every power plant makes electricity. Its easy to make heat with nuclear or fossil fuels. You use the heat to boil water, which makes a lot of pressure, and you use the pressure to turn ... | [] | [] | [
[],
[]
] | |
zf2wr | Why does adding more components to a transistor increase clock speed? | I am always hearing about components on transistors getting smaller and that this is increasing the clock speed (okay, its tailed off these days).
It seems strange to me that adding more components would increase clock speed, as I'd think that you just need a few components and make them work very fast. | askscience | http://www.reddit.com/r/askscience/comments/zf2wr/why_does_adding_more_components_to_a_transistor/ | {
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"text": [
"First, they aren't referring to adding more components to a transistor, rather they are talking about increasing the number of transistors on a chip or the density of transistors on a chip.\n\nIncreased transistor count does... | [] | [] | [
[],
[]
] | |
j3e4d | why can't a state just print more banknotes to create more money? [li5] | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j3e4d/why_cant_a_state_just_print_more_banknotes_to/ | {
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"text": [
"Think of a rare baseball card. If there's only 10 of them in existence, then everyone would want them and they would be willing to trade hundreds of chocolate bars for it. \nNow think if they printed 9... | [] | [] | [
[],
[],
[]
] | ||
3mvqaq | what is the "sharing economy"? | A good example would be ride share programs like Uber (vs. traditional taxi services). How is Uber not just another taxi service? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3mvqaq/eli5_what_is_the_sharing_economy/ | {
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"text": [
"Instead of being full time taxi drivers anyone with a car and a license can hop on and be an uber driver.\n\nSimilarly, Airbnb allows individuals to host people in their homes as a hotel would.\n\nThe \"sharing\" idea is tha... | [] | [] | [
[],
[
"https://toe.prx.org/2015/06/instaserfs-i-of-iii/"
]
] | |
3557k4 | is hemp realistically a great replacement for many materials (plastics and papers) or has this been over emphasized by those seeking legal marijuana? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3557k4/eli5_is_hemp_realistically_a_great_replacement/ | {
"a_id": [
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"text": [
"Hemp is a decent replacement for a broad range of things. You won't see paper companies switching from wood to hemp just because it's legalized. \n\nAlso hemp contains almost none of the active ingredients that recreational marijuana has (you can... | [] | [] | [
[]
] | ||
3k2yr9 | what's a military formation? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3k2yr9/eli5_whats_a_military_formation/ | {
"a_id": [
"cuudigv",
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"text": [
"Any set of soldiers marching under one command, usually in a regular form.\n\nAlready Egyptians did so that the they had the less experienced at the front, and the more experienced at the back, to prevent retreat and fill in... | [] | [] | [
[],
[]
] | ||
5jbikq | Why was Dwight Eisenhower made Supreme Allied Commander during WWII despite the United States entering the war after other nations? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5jbikq/why_was_dwight_eisenhower_made_supreme_allied/ | {
"a_id": [
"dbfg5to"
],
"score": [
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"text": [
"I asked a similar question a few months ago that I think might get to the heart of what you're asking. Hopefully this helps? The response I got was fantastic! (all credit to u/goodmorningdave)\n\n_URL_0_"
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/4fo56f/why_was_eisenhower_chosen_over_other_more_field/"
]
] | ||
45efsd | AskScience AMA Series: We study neutrinos made on earth and in space, hoping to discover brand-new particles and learn more about the mysteries of dark matter, dark radiation, and the evolution of the universe. Ask us anything! | Neutrinos are one of the most exciting topics in particle physics—but also among the least understood. They are the most abundant particle of matter in the universe, but have vanishingly small masses and rarely cause a change in anything they pass through. They spontaneously change from one type to another as they trav... | askscience | https://www.reddit.com/r/askscience/comments/45efsd/askscience_ama_series_we_study_neutrinos_made_on/ | {
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"http://t.sidekickopen35.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJN7t5XZsQK2V-W1p81NR1p1klTW2z8P1C56dvDDdhQHrz02?t=http%3A%2F%2Fmeetings.aaas.org%2F&si=5841448254046208&pi=10d8c60e-50ac-423d-e77b-887b7b3f004a",
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c84ty8 | what do people who speak different languages hear when someone speaks english? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c84ty8/eli5_what_do_people_who_speak_different_languages/ | {
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"It sounds just like what you hear when you hear someone speak in a language you don’t know. You can tell they are saying something that means something because their voice is controlled and their body language will tell you they are not just maki... | [] | [] | [
[
"https://youtu.be/Vt4Dfa4fOEY"
]
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2eu1oj | why do people donate to different cancers (breast, prostate, etc), won't one cure lead to cures for all the others? | [I thought of this question after seeing this chart.](_URL_0_)
Isn't cancer just cancer? And if there isn't just one cure, then which one is most important to uncover the cure for all the others, let's put our focus there first? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2eu1oj/eli5_why_do_people_donate_to_different_cancers/ | {
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"Cancer is actually a term that broadly describes a group of diseases, not just one, where there is uncontrollable cell growth that inva... | [] | [
"http://i.imgur.com/M7FfhbC.png"
] | [
[],
[
"http://www.phdcomics.com/comics/archive.php?comicid=1162"
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21gngu | Effects Of Shakespearean/Elizabethan Theater on the London Society? | I have been looking for articles and information on the effects theater had on Elizabethan London society and I cna't seem to find anything trustworthy, I really need some help! | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/21gngu/effects_of_shakespeareanelizabethan_theater_on/ | {
"a_id": [
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],
"score": [
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"text": [
"**Clothing**\n\nThe major theaters served as fashion runways, setting popular trends in clothing. Costumes were elaborate, expensive, and often borrowed from or donated by local tailors, cobblers, and jewelers. These clothiers could then advert... | [] | [] | [
[
"http://books.google.com/books?id=wvKRUSdUsnkC&printsec=frontcover&dq=From+Shakespeare+to+Existentialism&hl=en&sa=X&ei=57szU7GIAaazsQSBzYHYCA&ved=0CC0Q6AEwAA#v=onepage&q=From%20Shakespeare%20to%20Existentialism&f=false",
"http://books.google.com/books?id=HGZZAAAAYAAJ&pr... | |
28f7b4 | why do they need so much money for cancer research? | What exactly does the money for Cancer go towards? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28f7b4/eli5why_do_they_need_so_much_money_for_cancer/ | {
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"Scientific research costs money - hiring scientists, buying highly specialized equipment, buying the supplies, chemicals, etc... It can cost thousands of dollars to buy a milligram... | [] | [] | [
[],
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"charitywatch.org",
"http://www.charitywatch.org/criteria.html"
],
[],
[]
] | |
2hmvoj | Unlike in Europe, where the tradition is still to build in brick and concrete, why does the US construct buildings using cheap building materials? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2hmvoj/unlike_in_europe_where_the_tradition_is_still_to/ | {
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"text": [
"What cheap building materials are you talking about in particular?",
"I'm assuming you are asking about why houses in tornado or hurricane zones are c... | [] | [] | [
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5x3m2p | what is a car engine really doing when it is "warming up"? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5x3m2p/eli5_what_is_a_car_engine_really_doing_when_it_is/ | {
"a_id": [
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"text": [
" Well, first off you don't need to warm up the engine of a modern car. They are designed and built to such a fine tolerance you can simply turn them on and drive under normal operating conditions year r... | [] | [] | [
[],
[],
[]
] | ||
3d3ywm | how can i avoid mosquito bites? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3d3ywm/eli5_how_can_i_avoid_mosquito_bites/ | {
"a_id": [
"ct1kucj"
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"text": [
"Source: I live in the south, and I have visited north east Arkansas which has more mosquitos than air at times. In Texas we have mosquitos that are so large they look like baby wasps. You can clearly see they have black and grey stripes on them.... | [] | [] | [
[
"http://www.amazon.com/Stansport-Hurricane-High-Lantern-12-Inch/dp/B000K6FI7E/ref=sr_1_4?ie=UTF8&qid=1436783105&sr=8-4&keywords=hurricane+lamp",
"http://www.amazon.com/TIKI-Brand-Citronella-Torch-Fuel/dp/B001UTGPCC/ref=sr_1_2?ie=UTF8&qid=1436783156&sr=8-2&keywords=citronella+lamp+o... | ||
3mpskz | The German Schlieffen Plan was in development for years prior to the breakout of WWI... how well was the plan kept secret? Was the invasion of Belgium genuinely a surprise to the other European powers? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3mpskz/the_german_schlieffen_plan_was_in_development_for/ | {
"a_id": [
"cvh1ywh"
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"text": [
"Debates over whether or not the idea of a \"Schlieffen plan\" actually existing aside, the Plan itself was kept fairly secret, with wargaming of scenarios based on it being few in number, and knowledge of the actual plan being restricted to high... | [] | [] | [
[]
] | ||
1a0fgj | Was WWI a true good guy vs bad guy war? | WWII obviously had major tyrannical figures that have become today's embodiment of evil, but i don't see that within WWI. I feel that early 20th century Germany was just growing and industrializing at a rate which European empires feared. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1a0fgj/was_wwi_a_true_good_guy_vs_bad_guy_war/ | {
"a_id": [
"c8sy710",
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2
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"text": [
"Okay, no. No, no, no, no. No war is ever a \"good guy vs. bad guy\" sort of thing from a historical perspective, though individual nations by and large choose to cast the war they're fighting in that sense. You can bet World... | [] | [] | [
[],
[]
] | |
5xjmhj | Would it be right to say that semiconductors are produced by doping? | I'm doing some research on semiconductors, and I've gotten onto the subject of doping. It appears that doping creates the p-n junction found in semiconductors. Since this seems to be a vital part of semiconductors, would it be right to say that doping is the process in which semiconductors are produced? | askscience | https://www.reddit.com/r/askscience/comments/5xjmhj/would_it_be_right_to_say_that_semiconductors_are/ | {
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"text": [
"No, not all semiconductors are doped. There are also [intrinsic semiconductors](_URL_0_), where pure materials act as semiconductors. F... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Intrinsic_semiconductor"
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[],
[],
[],
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4isofh | what are the "loudness wars", why are they happening, and why should anyone care that music is getting louder? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4isofh/eli5_what_are_the_loudness_wars_why_are_they/ | {
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42,
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"text": [
"Music is getting compressed so it sounds louder. Before this you're set your volume to your preferred level and would hear everything... | [] | [] | [
[
"https://youtu.be/dcKDMBuGodU"
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[
"http://housepital.nl/mastering/wp-content/uploads/2014/01/loudness_war.jpg"
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2dodx1 | How would a Christian church service have differed in Rome in 500, 1000, and 1500 CE? | Who would be there? Would they be speaking to a congregation? Was there interaction from people other than the clergy? How long would it last and how often was it? Etc. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2dodx1/how_would_a_christian_church_service_have/ | {
"a_id": [
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"text": [
"I can only give some descriptions on the changes throughout history. The essence basically remains the same throughout history: the mass of the catechumens and the eucharistic liturgy proper. Initially Mass was offered onl... | [] | [] | [
[],
[]
] | |
28sb8s | why can hospitals charge $50 a pill for tylenol, but i can buy a whole bottle at the store for $5? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28sb8s/eli5_why_can_hospitals_charge_50_a_pill_for/ | {
"a_id": [
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"score": [
3,
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25,
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2,... | [] | [] | [
[],
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[
"http://www.ncbi.nlm.nih.gov/pubmed/15942342"
],
[]
] | ||
1j0x0z | How long does it take for a nerve signal to travel from a blue whale's tail to it's brain? | Considering how large a blue whale is, I was wondering if the speed at which nerve signals take to cross it's entire body is significantly different to that of humans.
Now obviously the brain would take a while to process anything that it receives, but I'm just interested in how long the actual nerve signal takes to g... | askscience | http://www.reddit.com/r/askscience/comments/1j0x0z/how_long_does_it_take_for_a_nerve_signal_to/ | {
"a_id": [
"cb9zbam"
],
"score": [
11
],
"text": [
"Assuming an optimally myelinated fibre, nerve impulse speeds in humans are circa. 100m/s. So if there were 1 fibre travelling the distance of the blue whale, about 0.3s. \n\nI don't know much about whale physiology, but I very much doubt there i... | [] | [] | [
[]
] | |
1jp59x | why would someone want to jam gps receivers? | I can obviously see the benefit of being able to jam military GPS, but why would someone want to drive around jamming GPS, other than to be a jerk? TIA! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1jp59x/eli5_why_would_someone_want_to_jam_gps_receivers/ | {
"a_id": [
"cbgw7k8",
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],
"score": [
3,
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],
"text": [
"The usual reason is people who are commercial drivers who want to do something they aren't allowed to do (take a detour to visit a relative, for example) but their commercial vehicle logs or transmits the vehicle's informati... | [] | [] | [
[],
[]
] | |
4adjfs | is there a fixed amount of money/assets in the world? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4adjfs/eli5is_there_a_fixed_amount_of_moneyassets_in_the/ | {
"a_id": [
"d0zetn1",
"d0zf6j4",
"d0zglk0"
],
"score": [
10,
4,
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],
"text": [
"no it wouldn't. because you can create money out of nothing. aka interest. the amount of money is always going up basically due to interest. ",
"Money roughly approximates the total amount of w... | [] | [] | [
[],
[],
[]
] | ||
3tfjyc | how do processors work? how is a simple silicon chip able to perform calculations? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3tfjyc/eli5_how_do_processors_work_how_is_a_simple/ | {
"a_id": [
"cx5pe04",
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"cx678iy",
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"cx68qfg",
"cx68yk6",
"cx69ad7",
"cx69odg",
"cx6c46k",
"c... | [] | [] | [
[
"https://upload.wikimedia.org/wikipedia/commons/5/58/Nand-gate-en.svg",
"http://i.imgur.com/pAFEsit.png",
"https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/XOR_from_NAND.svg/300px-XOR_from_NAND.svg.png",
"http://i.imgur.com/bdu5kOQ.png",
"http://www.circuitstoday.com/wp-content/upload... | ||
2b229e | why do my teet hurt when i eat sugary candy (taffy, tootsie rolls...) | I bit into a doughnut with sprinkles today. I got a sprinkle right in between two teeth and my mouth lit on fire. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2b229e/eli5_why_do_my_teet_hurt_when_i_eat_sugary_candy/ | {
"a_id": [
"cj10b9u",
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],
"score": [
3,
2,
3
],
"text": [
"Sounds like cavity creeps",
"Almost certainly a cavity. Your saliva dissolves the sugar and the liquid sugar mix can get into the smallest of places, so it may only be a really really tiny cavity, b... | [] | [] | [
[],
[],
[]
] | |
ainsgc | Intelligence documents from WWII and after from my Grandfather | Recently my Grandmother gave me a box of paperwork that she has kept secret for many years for my Grandfather (who passed away 20 years ago) relating to WWII and afterwards which is a lot of intelligence information, a lot is in English but also a lot in Italian, German, French and other.
I believe recently the date c... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/ainsgc/intelligence_documents_from_wwii_and_after_from/ | {
"a_id": [
"eepz4ke",
"eeq6tfn"
],
"score": [
3,
2
],
"text": [
"First and foremost it's amazing that they've been kept. Please do what you can to make sure they don't get damaged and do what you can to minimize the damage. Original documents are often a wonderful treasure trove to many... | [] | [] | [
[],
[]
] | |
1pi2xf | what does it mean when someone is "in shock"? | The vid on the front page of the guy busting his leg base jumping, everyone was saying "oh he's calm because he's in shock" and I see that term thrown around a lot. What exactly does it mean? Is there a medical definition or is it just colloquial or what? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1pi2xf/eli5_what_does_it_mean_when_someone_is_in_shock/ | {
"a_id": [
"cd2io40",
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"cd2p4yj"
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"score": [
6,
2,
14,
3
],
"text": [
"The term \"shock\" is used very frequently in the medical world. It is when the organs within a person's body aren't getting enough oxygen. If a person is in shock for too long,... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Posttraumatic_stress_disorder",
"http://en.wikipedia.org/wiki/Dissociative_disorder"
],
[]
] |
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