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2l1opc
why do some cds have a static sound like if it was scratched even though the condition is "new"?
I bought some cds that are new and haven't been opened but they are playing with a static sound. There's no scratches on the cd but it still plays with distorted quality. Any ideas of what might cause this and is there a way to fix it?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2l1opc/eli5_why_do_some_cds_have_a_static_sound_like_if/
{ "a_id": [ "clqmquh", "clqn907" ], "score": [ 5, 2 ], "text": [ "A scratched CD causes it to skip, not sound like it has static. Static would be caused by problem during the recording - faulty recording equipment, background noise, etc.. This static noise will be present in all copies of ...
[]
[]
[ [], [] ]
1gfxso
can somebody please give me a tl;dr on this whole nsa scandal?
First off, I understand *scandal* isn't the best word for it, but it's two in the morning and that's the word I decided to use. Now let me explain. Ok, so I have a mild understanding about the issue at hand. Basically, we can all be "watched" by the government at any point in time, more or less, and because of that we ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1gfxso/eli5_can_somebody_please_give_me_a_tldr_on_this/
{ "a_id": [ "cajxetc" ], "score": [ 3 ], "text": [ "the NSA since 9/11 has been given a purpose to track terrrorists and some of the methods they have done were considered immoral and would of been considered unconstitutional but, It's Not at all illegal.\n\n Phone log database - They are constitu...
[]
[]
[ [ "http://en.m.wikipedia.org/wiki/Smith_v._Maryland", "http://www.govtrack.us/congress/bills/110/hr6304/text", "https://www.facebook.com/about/privacy/your-info", "http://upload.wikimedia.org/wikipedia/commons/5/5c/Boundless-heatmap-large-001.jpg", "http://en.m.wikipedia.org/wiki/Pen_register" ...
23y95a
What is the process for doping silicon?
I understand that to make p- and n-type semiconductors materials such as boron, phosphorous, arsenic and what not are added to silicon, but HOW are they added? Like the physical process of making it. And then from this point, how is the material handled and made useful? Thank you!
askscience
http://www.reddit.com/r/askscience/comments/23y95a/what_is_the_process_for_doping_silicon/
{ "a_id": [ "ch1ua8p", "ch1v616" ], "score": [ 9, 10 ], "text": [ "You physically put phosphorous or boron close to silicon and heat it up. The phosphorus or boron will diffuse into the silicon lattice.\n\nSee _URL_0_\nfor a description of the process with photos.", "/u/ron_leflore me...
[]
[]
[ [ "http://www.ece.gatech.edu/research/labs/vc/processes/ntypediff.html" ], [ "http://en.wikipedia.org/wiki/Ion_implantation" ] ]
227j0x
How bad was a slave's life in antiquity, truly?
I am not referring to American plantation slaves or anything post enlightenment. I am wondering just how bad a slave's lot in the Roman or Grecian empires was, or any old world states famous for their slaves. On a side note, it seems to me freeing a lifelong slave would be doing them a unkindness, suddenly they have ...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/227j0x/how_bad_was_a_slaves_life_in_antiquity_truly/
{ "a_id": [ "cgk5l60" ], "score": [ 43 ], "text": [ "I'm gonna go ahead and pull a chunk of this from one of the [answers I wrote up a little bit ago on this very thing :)](_URL_3_) \n\nSo. Roman slavery. You know how the Civil War was fought over slavery? Well ...in Rome, they were an integral pa...
[]
[]
[ [ "http://allthingsd.com/files/2012/07/commodus_thumbs_down.png", "http://upload.wikimedia.org/wikipedia/commons/2/27/P.Maggiore_Tomb.JPG", "http://allthingsd.com/files/2012/07/Commodus_thumbs_up.jpg", "http://www.reddit.com/r/AskHistorians/comments/1jwu1g/what_was_the_life_of_a_slave_in_ancient_rom...
5lxn0e
Does Jupiter's orbit impact the average global temperature of Earth?
askscience
https://www.reddit.com/r/askscience/comments/5lxn0e/does_jupiters_orbit_impact_the_average_global/
{ "a_id": [ "dc08fx5" ], "score": [ 4 ], "text": [ "On timescales on the order of 50-100 thousand years or more, the answer is yes, probably, to some extent. \n\nAs the planets revolve around the Sun, their gravitational fields are also constantly tugging a bit on one another, with Jupiter's \"tu...
[]
[]
[ [ "https://en.m.wikipedia.org/wiki/Milankovitch_cycles" ] ]
3sj3lk
why is it that when you lay down and lay as still as possible, you can hear a pillow compressing no matter how still you lay?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3sj3lk/eli5_why_is_it_that_when_you_lay_down_and_lay_as/
{ "a_id": [ "cwxovi1", "cwy1m78" ], "score": [ 8, 2 ], "text": [ "I'm no scientist, but I would assume it's because there are hundreds of thousands of little fibers in a pillow and even though a human thinks they are laying perfectly still, they are still constantly moving (breathing, card...
[]
[]
[ [], [] ]
11n1du
Would it be possible for a planet wide EMP to occur?
With the Earth being round, wouldn't there be a dead zone? Also, what would be the most likely candidate for causing such an impressive force? Would there be any chance of humanity surviving whatever caused said EMP?
askscience
http://www.reddit.com/r/askscience/comments/11n1du/would_it_be_possible_for_a_planet_wide_emp_to/
{ "a_id": [ "c6nxmsa" ], "score": [ 3 ], "text": [ "If sufficient nuclear devices were detonated simultaneously while in LEO (low earth orbit), and properly positioned it could be possible.\n" ] }
[]
[]
[ [] ]
1lapq7
what's it like for astronauts who have been in space to be back on earth with gravity?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1lapq7/whats_it_like_for_astronauts_who_have_been_in/
{ "a_id": [ "cbxdt9d", "cbxfjw2", "cbxg16u", "cbxgi1g", "cbxixx1" ], "score": [ 8, 4, 11, 3, 4 ], "text": [ "Guess the astronauts are too occupied in space to answer this question", "I know they lose bone mass of .5-1% per month they are there. But I want to kno...
[]
[]
[ [], [ "http://www.wimp.com/astronautreadjusting/" ], [], [], [] ]
awcfp5
Actually GOOD textbooks?
[deleted]
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/awcfp5/actually_good_textbooks/
{ "a_id": [ "ehlmsuv", "ehlveqt" ], "score": [ 5, 6 ], "text": [ "As a history major constantly looking for substantive resources for citation, I’d say a great textbook chock full of primary sources is Sources for America’s History by James Henretta. There are two volumes for every edition...
[]
[]
[ [], [] ]
5hg9id
how is momentum realated to mass and velocity?is momentum different than power?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5hg9id/eli5how_is_momentum_realated_to_mass_and/
{ "a_id": [ "dazyk55", "db00xos" ], "score": [ 2, 2 ], "text": [ "You know how an object in motion tends to stay in motion? Now let's forget friction altogether and assume zero resistance to motion, the law of conservation of energy alone says that if I push you, you will keep moving forev...
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[ [], [] ]
dvgt9p
why is the zipper merge faster?
I watched this [video](_URL_0_) on why zipper merging when driving is better than merging early. I understand the first 3 reasons they lay out for why early merging is bad: 1. Early merging opens up space for a dbag to just fly through (ironically zipper merging is asking for everybody to be that dbag, hence nobody i...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/dvgt9p/eli5_why_is_the_zipper_merge_faster/
{ "a_id": [ "f7clgp9", "f7cmdx0", "f7d8nt3" ], "score": [ 2, 21, 2 ], "text": [ "You already stated the answer- not zipper merging forces everyone in one of the lanes to come to a complete stop. If everyone zipper merged properly, neither lane would ever have to fully stop.\n\nBy n...
[]
[ "https://www.youtube.com/watch?v=Ivme-_PE1d8" ]
[ [], [], [] ]
d0ufly
How widespread were Sea Shanties spread? And are there any example of different regional variations of the same song?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/d0ufly/how_widespread_were_sea_shanties_spread_and_are/
{ "a_id": [ "ezl7i88" ], "score": [ 3 ], "text": [ "Let’s first try and narrow this down and clarify / define some items. On a side note: this is a fantastic question which touches on the exciting areas of transnational history, identity, and globalisation. Before anything I am going to talk solel...
[]
[]
[ [ "https://www.youtube.com/watch?v=t8s\\_Z13jEeo", "https://www.youtube.com/watch?v=t8s_Z13jEeo", "https://www.youtube.com/watch?v=mDjOAsxeokw" ] ]
2klsp7
why we care that companies track our web browsing to create targeted ads for us?
I understand that some people claim it's a violation of privacy, but I have to say that I've found several good things through targeted ads (related to sites I had recently viewed.) Why all the outrage regarding privacy when in it helps us see ads that we might actually care about?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2klsp7/eli5_why_we_care_that_companies_track_our_web/
{ "a_id": [ "clmhyv2" ], "score": [ 7 ], "text": [ "It's because people find their privacy being protected more important than seeing ads they might care about. Think of it as a person coming into your house unwanted and looking at all your belongings, ignoring you when you tell them to go away.\n...
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[]
[ [] ]
b243uq
why does wearing heels appear to enhance female appearance and appeal? is it cultural or biological or psychological?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/b243uq/eli5_why_does_wearing_heels_appear_to_enhance/
{ "a_id": [ "eiq3exp", "eiq4r2d", "eiq4rmg", "eiq4zn5", "eiq56uv" ], "score": [ 2, 2, 2, 8, 3 ], "text": [ "Guess: I'd say cultural because heels were used by men (I'm thinking of Louis XIV)", "Makes the butt stick up and out", "Makes their butt stick out mo...
[]
[]
[ [], [], [], [], [] ]
7a9rqj
does getting hit on the head have to do with losing your taste buds?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7a9rqj/eli5_does_getting_hit_on_the_head_have_to_do_with/
{ "a_id": [ "dp89dyd" ], "score": [ 7 ], "text": [ "Your tongue has many taste buds which send small signals to your brain whenever it tastes different things. When you hit your head just right, you can make it hard for those taste buds to communicate effectively. This can mean you lose one of you...
[]
[]
[ [] ]
1525cz
[Physics] Since LCDs rotate polarized light, why is the light not circularly polarized?
LCDs rotate the plane of polarization by 90 degrees. For some reason, rotating the plane of polarization is not the same as circular polarization. Can someone explain why? - regarding circular polarization in particular (I think I know a bit about plane polarization).
askscience
http://www.reddit.com/r/askscience/comments/1525cz/physics_since_lcds_rotate_polarized_light_why_is/
{ "a_id": [ "c7im5im", "c7imf3r" ], "score": [ 2, 6 ], "text": [ "I think you are confused by the definition of circular polarization. Circular polarization is a description on the relative orientation of the E and B fields in the electromagnetic wave, which is plane independent. ", "L...
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[]
[ [], [] ]
3llmzw
if color is the wavelength then what exactly is brightness?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3llmzw/eli5_if_color_is_the_wavelength_then_what_exactly/
{ "a_id": [ "cv78yu4", "cv79s6m" ], "score": [ 15, 14 ], "text": [ "It's the wave intensity.\n\nWavelength is the distance between each wave's peak whereas the intensity is the \"height\" of each wave.", "Two things are at play here. One is the actual physical properties of light. The ...
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[]
[ [], [ "https://en.wikipedia.org/wiki/Color_vision#/media/File:Cone-fundamentals-with-srgb-spectrum.svg" ] ]
9hddud
why does the letter "s" always stand out slightly from other letters in conversation?
If I'm down the hall from people having a conversation, and I can just barely make it out, everything sounds hazy but I always hear the S's clearly. Turn on a TV or any media with dialogue and it has the same effect at this distance. During performances or speeches using mic's, S's echo longer and louder than the other...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9hddud/eli5_why_does_the_letter_s_always_stand_out/
{ "a_id": [ "e6b2l4d" ], "score": [ 8 ], "text": [ "S is a sibilant, which means it is made up of high pitched noises. Since most other letters use lower pitches of sounds, the S stands out when it is spoken.\n\nTo compare, S is usually made of noise around 7,000 Hz high, but pretty much all other...
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[]
[ [] ]
3p1s5x
Does the terminal velocity of a fluid depend on its viscosity?
So a question that stems from that: if I dropped a drop of water and a drop of maple syrup out of an airplane, which hits the ground first?
askscience
https://www.reddit.com/r/askscience/comments/3p1s5x/does_the_terminal_velocity_of_a_fluid_depend_on/
{ "a_id": [ "cw2h2y6" ], "score": [ 2 ], "text": [ "No. You can even drop *solids* and they still fall at pretty much the same rate. Although something with less viscosity is likely to break into smaller pieces, which would slow it down, or something like that.\n\nWhat does matter is the viscosity...
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[]
[ [] ]
sdsv0
the arguments for 9/11 being an 'inside job'
Title. EDIT: What I wanted was an (unbiased) account of some of the actual arguments used. Like evidence and such. I didn't want just people saying that arguments did exist and people's motives for having them. EDIT 2: My inbox hates you guys. :D
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/sdsv0/eli5_the_arguments_for_911_being_an_inside_job/
{ "a_id": [ "c4d7h0h", "c4d7l9k", "c4d7p5l", "c4d7q7e", "c4d7rxf", "c4d7uva", "c4d7wjg", "c4d84ir", "c4d85th", "c4d88o8", "c4d89q1", "c4d8hf8", "c4d8ilr", "c4d8l6z", "c4d8xg2", "c4d9he5", "c4d9m00", "c4d9r5q", "c4d9wws", "c4da07n", "c...
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[ [ "http://www.youtube.com/watch?v=Ie0qr60NJiU" ], [], [], [], [], [ "https://www.google.com/search?q=plane+remains+at+pentagon&hl=en&prmd=imvns&source=lnms&tbm=isch&ei=sBSNT5W_DoaiiQKEyv3ZCA&sa=X&oi=mode_link&ct=mode&cd=2&ved=0CAsQ_AUoAQ&biw=1214&b...
fw132
I regret not learning more about physics while in college. Can r/askscience recommend a book(s) to bring me up to speed on as wide a variety of physics topics as is feasible?
askscience
http://www.reddit.com/r/askscience/comments/fw132/i_regret_not_learning_more_about_physics_while_in/
{ "a_id": [ "c1j1c7f", "c1j1fys", "c1j1mws", "c1j1quw" ], "score": [ 2, 4, 2, 2 ], "text": [ "*The Road to Reality* by Penrose.", "Physics for future presidents _URL_1_\n\nA textbook that's used in this great class. _URL_0_", "[Here](_URL_0_) is an excellent thread ...
[]
[]
[ [], [ "http://www.youtube.com/view_play_list?p=095393D5B42B2266", "http://www.amazon.com/gp/product/0691135045/ref=pd_lpo_k2_dp_sr_2?pf_rd_p=1278548962&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=0393066274&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=0A90FRPZ2A4NR84AHVSZ" ], [ "http://www.r...
7a46e2
how were integrals, derivatives, limits, and other calculus concepts originally discovered and applied?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7a46e2/eli5_how_were_integrals_derivatives_limits_and/
{ "a_id": [ "dp6zywn", "dp73hhh", "dp78fw5", "dp7kscz" ], "score": [ 59, 11, 44, 3 ], "text": [ "They were discovered thousands of years ago, but the methods for that were super complex. Someone ssked Newton how he knew that earth had an elliptical orbit and not circular. S...
[]
[]
[ [], [], [], [ "https://en.wikipedia.org/wiki/(%CE%B5,_%CE%B4)-definition_of_limit" ] ]
2edy3c
why are speed cameras always accompanied by big signs that let motorists know they're there?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2edy3c/eli5why_are_speed_cameras_always_accompanied_by/
{ "a_id": [ "cjyj8gb", "cjyjb38", "cjym550" ], "score": [ 18, 5, 6 ], "text": [ "Because they are there to make you slow down, not to catch you speeding.", "If there is a sign they slow down, if they don't know about the camera they just keep on driving too fast. It's about pre...
[]
[]
[ [], [], [] ]
98cj9b
If the earth rotated at the same speed but in the opposite direction, how long would a day be?
askscience
https://www.reddit.com/r/askscience/comments/98cj9b/if_the_earth_rotated_at_the_same_speed_but_in_the/
{ "a_id": [ "e4ezzsw", "e4fbbpu" ], "score": [ 28, 10 ], "text": [ "Since a day is commonly defined at noon to noon (or midnight to midnight), the actual time it takes to rotate once (1436 minutes) must be added to the change in the position of the sun relative to the earth (4 minutes), si...
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[]
[ [], [] ]
zof6j
What are some good books to read for an introduction to neurochemistry?
askscience
http://www.reddit.com/r/askscience/comments/zof6j/what_are_some_good_books_to_read_for_an/
{ "a_id": [ "c66cc5c" ], "score": [ 2 ], "text": [ "Any basic Neuroscience textbook, such as Neuroscience: Exploring the Brain by Bears, Connors and Paradiso have a basic overview. This was my textbook for my first year of my Neuroscience degree and I still find it useful." ] }
[]
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[ [] ]
33fyww
why does my laptop say i have an hour of battery left but then runs out within 15-20 minutes?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/33fyww/eli5_why_does_my_laptop_say_i_have_an_hour_of/
{ "a_id": [ "cqkjtzl", "cqkjv6f" ], "score": [ 3, 2 ], "text": [ "It's a rough estimate, the computer cannot tell which programs or websites or programs you will use in the future. All programs take up a certain amount of power for example, games and high resolution videos can take up more...
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[]
[ [], [] ]
4ganhz
Do the lungs, rather the bronchii and alveoli inside them fill from top to bottom, or vice versa?
I'm just a man interested in knowing things.
askscience
https://www.reddit.com/r/askscience/comments/4ganhz/do_the_lungs_rather_the_bronchii_and_alveoli/
{ "a_id": [ "d2gj7xy", "d2h4r9w" ], "score": [ 2, 2 ], "text": [ "Air moving into the lungs is caused by a negative pressure gradient \"drawing\" air into the lungs. It's not like pouring water into a lung shaped vase, so all the terminal bronchioles and alveoli should \"fill up\" at rough...
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[]
[ [], [] ]
98ook3
why do our feet get cold whenever we're scared/nervous?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/98ook3/eli5_why_do_our_feet_get_cold_whenever_were/
{ "a_id": [ "e4hlkdm" ], "score": [ 3 ], "text": [ "Not sure, but my guess would be blood being diverted to more critical areas (brain,heart, lungs etc) as part of the fight or flight response" ] }
[]
[]
[ [] ]
1daiok
What would happen if when you get a shot or something injected to your body, there was an air bubble in it.
You know when the doctor prepares a shot, he puts it right side up and squirts it so there air comes out? What would happen if there was still air in it?
askscience
http://www.reddit.com/r/askscience/comments/1daiok/what_would_happen_if_when_you_get_a_shot_or/
{ "a_id": [ "c9ojzau", "c9ooukg" ], "score": [ 6, 3 ], "text": [ "It could cause an [air embolism](_URL_0_). \n\nHowever, it takes quite a bit of air ( > 100mL) to actually cause a problem, so it's mostly to err on the side of caution.", "From William S. Burroughs \"If air bubbles cou...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Air_embolism" ], [] ]
1zbozf
why do different countries measure their shoes differently?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1zbozf/eli5_why_do_different_countries_measure_their/
{ "a_id": [ "cfs9zxh", "cfskqgj" ], "score": [ 2, 2 ], "text": [ "When they started measuring, we didn't have cheap, quick world trade. We didn't have giant factories in China churning out everything. Shoes were generally made locally.\n\nLocal customs determined shoe sizing & there was...
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[]
[ [], [] ]
24enno
Can a photon be redshifted to 0 Hz/nonexistence in finite time?
askscience
http://www.reddit.com/r/askscience/comments/24enno/can_a_photon_be_redshifted_to_0_hznonexistence_in/
{ "a_id": [ "ch6fv2b" ], "score": [ 8 ], "text": [ "In the [Big Rip](_URL_0_) scenario, yes - the redshift/scale factor could grow to infinite size in finite time. There will most likely not be a Big Rip (or a Big Crunch) in our universe though. The scale factor of our universe will increase indef...
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[]
[ [ "https://en.wikipedia.org/wiki/Big_rip" ] ]
c5xuzg
What is the hottest manmade temperature ever recorded on Earth, and how was it created?
askscience
https://www.reddit.com/r/askscience/comments/c5xuzg/what_is_the_hottest_manmade_temperature_ever/
{ "a_id": [ "es4vrhk", "es4wdtl", "es5lxq8" ], "score": [ 3, 28, 5 ], "text": [ "Reportedly it's quark-gluon plasma, produced by very high energy collisions of heavy nuclei. The LHC holds the current record, and the RHIC can also do it.\n\n_URL_0_", "The hottest temperature eve...
[]
[]
[ [ "http://blogs.nature.com/news/2012/08/hot-stuff-cern-physicists-create-record-breaking-subatomic-soup.html" ], [], [] ]
24bcp0
My sailor uncle wonders: Why are equinox tides more intense?
He writes: As a sailor and life-long student of the ocean, I've learned about the 400-plus astronomical cycles that influence the tides. The one cycle mentioned in most tide science books but never explained is the exceptional tides produced around the equinoxes. Why would this be so? Why would a full or new moon du...
askscience
http://www.reddit.com/r/askscience/comments/24bcp0/my_sailor_uncle_wonders_why_are_equinox_tides/
{ "a_id": [ "ch5hshe" ], "score": [ 9 ], "text": [ "During the equinox, the Moon is overhead at the equator. As the Earth rotates over the course of a day, the tidal bulge is going to (more or less) track the Moon as it moves across the sky. Thus the tidal bulge will rotate around the equator. ...
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[ [] ]
5y7vgj
how can founder of a company (like steve jobs) be voted off it?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5y7vgj/eli5_how_can_founder_of_a_company_like_steve_jobs/
{ "a_id": [ "dent6xn", "dent965", "dentge7" ], "score": [ 3, 10, 2 ], "text": [ "Because a company belongs to the owners, not the founder. If Steve Jobs didn't want to be voted out he shouldn't have sold his controlling interest in the company.", "When a company is founded the ...
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[]
[ [], [], [] ]
49lpp8
there is a 1 lightyear long pole. you are holding one end of this pole, you turn that end. would a person on the other end of the pole take 1 year to see the pole turn?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/49lpp8/eli5_there_is_a_1_lightyear_long_pole_you_are/
{ "a_id": [ "d0stadb", "d0stb6l" ], "score": [ 3, 2 ], "text": [ "It would take longer than a year. The pole would move at the speed of sound for the material that the pole is made of, which will be substantially slower than light. ", "The \"push\" would travel at the speed of sound th...
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[ [], [] ]
b8xfvf
what animals with eyes on the sides of their head see exactly? can they see both their sides at the same time?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/b8xfvf/eli5_what_animals_with_eyes_on_the_sides_of_their/
{ "a_id": [ "ek0oj7i", "ek0oo3t", "ek0os4c", "ek0os5g", "ek0wixe", "ek0yhbn", "ek1247i", "ek12gad", "ek1328w", "ek132vf", "ek1338o", "ek15ewb", "ek16uma", "ek1k23b", "ek1sxx1", "ek20mei", "ek22baz", "ek267jy", "ek2eihb", "ek2fm2y" ], ...
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[]
[ [ "https://youtu.be/kw_d5lu0UlY" ], [], [], [], [], [], [], [], [ "http://jeb.biologists.org/content/212/24/4010" ], [], [], [ "https://en.wikipedia.org/wiki/Woodcock" ], [], [ "https://www.vgr1.com/vision/Rabbit-vision.png", "https://thumbs.gfycat.com/ThoseForsak...
lhj2d
How does the body adapt itself to increasing physical activity?
For example - in the gym, on day 1, I could barely walk a kilometer without breaking into profuse sweat and being short of breath. After about 15 days now, I can easily walk that much distance in half the time with barely any sweating. How does this happen?
askscience
http://www.reddit.com/r/askscience/comments/lhj2d/how_does_the_body_adapt_itself_to_increasing/
{ "a_id": [ "c2sq8ax", "c2sq8ax" ], "score": [ 5, 5 ], "text": [ "Exercise causes damage to your muscle, as part of repair your muscles start developing new blood vessels. Frequent running increases vessel density, which allows the muscles to get more oxygen and nutrients > less stress-...
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[]
[ [], [] ]
4o2xl0
Any good films that depict the Crusades?
One of my all-time favourite movies is Ridley Scott's Kingdom of Heaven. Yes, I know, it ain't historically accurate. Still loved it though. Anyways, that film really has me energized. I wanna learn more about the Crusades.
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/4o2xl0/any_good_films_that_depict_the_crusades/
{ "a_id": [ "d49lxtc" ], "score": [ 3 ], "text": [ "Do you want films *about* the crusades or do you want films that *teach* about the crusades?" ] }
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[ [] ]
mz42k
Is there a definitive answer to the Aspartame toxicity issue?
So my mom has been a huge advocate of the artificial sweeteners causing cancers and what not. I initially thought this had some truth to it with some research and others' opinions, but my senior year in high school, my biology teacher, who is quite possibly the most intelligent person I've ever met, said that it was c...
askscience
http://www.reddit.com/r/askscience/comments/mz42k/is_there_a_definitive_answer_to_the_aspartame/
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[]
[ [ "http://www.reddit.com/r/askscience/comments/mz42k/is_there_a_definitive_answer_to_the_aspartame/c352d3y", "http://www.ncbi.nlm.nih.gov/pubmed?term=aspartame%20cancer" ], [], [ "http://www.ncbi.nlm.nih.gov/pubmed/3657889", "http://ec.europa.eu/food/fs/sc/scf/out155_en.pdf", "http://www.e...
2vzfu4
Does a magnetic field affect water molecules?
As water molecules have a small magnetic moment
askscience
http://www.reddit.com/r/askscience/comments/2vzfu4/does_a_magnetic_field_affect_water_molecules/
{ "a_id": [ "com8c6x", "combolq", "comyhdb" ], "score": [ 13, 6, 2 ], "text": [ "Water is diamagnetic, so when exposed to an external magnetic field, it will magnetize in the direction opposing the external field.", "There is a really cool experiment on youtube that I once saw ...
[]
[]
[ [], [ "https://www.youtube.com/watch?v=rv4MjaF_wow" ], [] ]
3d6viq
when my credit/debit card does not read for being too scratched, why does the reader then accept it after folding receipt paper around it and sliding it again?
Paper seems like would hinder the magnetic strip when swiped, though it works every time. Edit: Plastic bags work, carboard works, almost anything smooth will work assuming it isn't magnetic itself. r/theskepticalheretic Edit again : This is best... Use clear box tape r/time2fly2124
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3d6viq/eli5_when_my_creditdebit_card_does_not_read_for/
{ "a_id": [ "ct2c8e6" ], "score": [ 6 ], "text": [ "The magnetic strip is magnetic but the head of the reader is prone to error if the surface it slides against is not smooth. So if you put a smooth outer layer on the card, the head now glides smoothly along the mag strip and reads the encoded num...
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[ [] ]
22i2l4
What were the differences between the "field hospitals" and the "evacuation hospitals" during WW2?
Researching info on my Gramps.
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/22i2l4/what_were_the_differences_between_the_field/
{ "a_id": [ "cgn10mo" ], "score": [ 2 ], "text": [ "A field hospital was a hospital near the frontline, usually maintained by the division the patients belonged to. Evacuation hospitals were for long-term patients, usually located \"at home\". " ] }
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[ [] ]
2dquad
why do luxury car company's with websites often never show the price of their vehicles?
I was looking at a bunch of luxury car company websites such as land rover, bentley, etc. and they never really show the price of their cars. Is it there a reason to this or am I just trippin' balls right now.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2dquad/eli5why_do_luxury_car_companys_with_websites/
{ "a_id": [ "cjs4msg", "cjs4ni0", "cjs5tpf", "cjs95zg", "cjsbt9d", "cjsedq6" ], "score": [ 29, 6, 3, 2, 2, 2 ], "text": [ "Because if you have to ask...you can't afford it.", "...maybe you're looking at wrong site. i'm on landrover's page and i see pric...
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[]
[ [], [], [], [], [], [] ]
6k9ugk
Why did the Japanese agree to the terms of the Washington Naval Treaty?
The Washington Naval Treaty appears to set in place a large number of limitations on the expansion of the Imperial Japanese Navy. The IJN has just come off a pair of successful wars, it is being funded by a militaristic, nationalistic, government, and has been expanding pretty rapidly. Why would they agree to the limi...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/6k9ugk/why_did_the_japanese_agree_to_the_terms_of_the/
{ "a_id": [ "djkg1pc", "djll9fl" ], "score": [ 6, 3 ], "text": [ "At the end of the Great War, only three naval powers remained in the world; The United States, The United Kingdom, and the Empire of Japan. Historically (circa 1900) Japanese naval doctrine was to keep a force of what could ...
[]
[]
[ [ "http://www.ibiblio.org/pha/pre-war/1922/nav_lim.html" ], [] ]
kyvh0
why are all nfl punters white?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/kyvh0/eli5_why_are_all_nfl_punters_white/
{ "a_id": [ "c2odush", "c2of861", "c2ofejq", "c2og9me", "c2oi4gf", "c2odush", "c2of861", "c2ofejq", "c2og9me", "c2oi4gf" ], "score": [ 3, 2, 2, 2, 2, 3, 2, 2, 2, 2 ], "text": [ "Give it time.", "Normally, I would call out ...
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[]
[ [], [], [ "http://i.imgur.com/irTik.jpg" ], [], [], [], [], [ "http://i.imgur.com/irTik.jpg" ], [], [] ]
2kw2a9
How was the French nuclear deterrence perceived by the USSR? The US?
As a French, I've been exposed since childhood to the official propaganda about how our "Force de Frappe" protected us from the Warsaw pact. I'll be curious to know if our nuclear arsenal was taken seriously by the USSR, and how it was perceived by the US. Were we effectively capable to inflict sufficient damage to t...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2kw2a9/how_was_the_french_nuclear_deterrence_perceived/
{ "a_id": [ "clpa2yq" ], "score": [ 86 ], "text": [ "The French and British weapons in large part existed and continue to exist to increase national standing in the world. Being a nuclear power is a fairly exclusive club and the members of this club have a bigger stick when dealing on the world s...
[]
[]
[ [ "https://www.mtholyoke.edu/acad/intrel/waltz1.htm", "http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&ved=0CE4QFjAF&url=http%3A%2F%2Fwww.sciencespo.fr%2Fceri%2Fsites%2Fsciencespo.fr.ceri%2Ffiles%2Fart_bt.pdf&ei=zblTVNWcOI23yATkhIHQAQ&usg=AFQjCNFk712YEdAaV0...
9ncjqv
why is a two-party system the stable result of first-past-the-post voting? what keeps it from collapsing into a single party system?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9ncjqv/eli5_why_is_a_twoparty_system_the_stable_result/
{ "a_id": [ "e7la6x6" ], "score": [ 2 ], "text": [ "Because the two parties are free to change their positions. If a certain position makes one of the parties widely unpopular, they'll change it to win those voters back. The other party is doing that at the same time.\n\nThis constant tug-of-war l...
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[ [] ]
2furc1
How was warfare conducted between 1836-1914?
Reading up on conflicts such as the American Civil War, the Crimean War, the Austro-Prussian War, and the Franco-Prussian War I'm kind of left with an open gap as how they fought battles? What happened when two armies met each other on the open field? Did they still line up in rank and file and unload volley after vol...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2furc1/how_was_warfare_conducted_between_18361914/
{ "a_id": [ "ckd17cu" ], "score": [ 15 ], "text": [ "**Preface:** American Civil War and \"the rest\" (Franco-Prussian and Austro-Prussian primarily are two separate entities. They were two entirely different methods of waging war and need to be treated as separate cases. The Americans had a Jomin...
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[ [] ]
684pvo
the science/biology/chemistry behind capsicain and hot peppers such as ghost pepper and carolina reaper and how the body reacts
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/684pvo/eli5_the_sciencebiologychemistry_behind_capsicain/
{ "a_id": [ "dgvoros" ], "score": [ 4 ], "text": [ "Capsaicin binds to a receptor in nerves responsible for signalling heat, activating those nerves. Those nerves then send the signal to your brain that they are detecting heat, which causes the burning sensation in your mouth. More capsaicin mea...
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[ [] ]
1fzk2u
What are some lesser-known or unusual ways the Jews hid from the Nazis?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1fzk2u/what_are_some_lesserknown_or_unusual_ways_the/
{ "a_id": [ "cafdzp1" ], "score": [ 5 ], "text": [ "Well, first, what exactly do you consider to be the \"usual\" ways?" ] }
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[ [] ]
89j8jk
why does co2 make a drink like coke feel 'fizzy' while nitrogen gas makes a drink like beer/ale feel smother?
Is it to do with the slight difference in charge between the C and Os or something about the kinds of receptors that are stimulated?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/89j8jk/eli5_why_does_co2_make_a_drink_like_coke_feel/
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[]
[]
[ [], [], [], [], [], [], [], [], [], [], [], [], [ "https://www.engineeringtoolbox.com/gases-solubility-water-d_1148.html", "http://teaintheancientworld.blogspot.com/2018/03/why-to-not-microwave-water-for-brewing.html", "https://www.engineeringtoolbox.com/air-solubility-water-d_63...
6ununx
how do you chug beer? like how do you get it to just slide down in one gulp?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6ununx/eli5_how_do_you_chug_beer_like_how_do_you_get_it/
{ "a_id": [ "dlu35mf" ], "score": [ 2 ], "text": [ "Try opening your throat. Sounds like I'm being facetious, but I saw a guy once who had to neck a pint as him and his mates had to go get on a flight, and he just kinda knocked it back like a pelican. Just kinda constantly swallow" ] }
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[ [] ]
1rlfca
Why is it that people of most of South American and African colonies adopted the religion of their colonial masters but peoples of countries of Asia (India, Indonesia for sure) retained their original religious beliefs?
I was travelling in South America when I noticed that after colonization, the people adopted Christianity, the religion of their colonial masters. They did this even when they had a reasonably established religion and social structure of their own (especially the Incas). This happened in Africa too. It aligns with my u...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1rlfca/why_is_it_that_people_of_most_of_south_american/
{ "a_id": [ "cdofv4o", "cdohek5", "cdok2cz", "cdoosil" ], "score": [ 5, 13, 14, 9 ], "text": [ "I am not an expert on this at all, but the \"original\" religious beliefs in both India and Indonesia were to varying degrees displaced by Islam before Europeans arrived. India (...
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[]
[ [], [ "https://archive.org/stream/presbyterianpion00shep#page/62/mode/2up/search/school" ], [ "http://upload.wikimedia.org/wikipedia/commons/4/44/Christian_distribution.png", "http://upload.wikimedia.org/wikipedia/commons/7/7e/Distribution_of_Catholics.png" ], [] ]
5i4mpb
Could someone explain the ethnicities in the British Isles? (Saxons, Celtics etc.)
As i'm not from Central Europe i do not really know what was going on with European Ethnicities. And as my nation is kind of "unique", if you could say (I mean that we do not fall under a specific category as Germanic/Latin etc.), it's a bit weird to have all these different tribes in Europe. So first of all that's wh...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/5i4mpb/could_someone_explain_the_ethnicities_in_the/
{ "a_id": [ "db6mdvu" ], "score": [ 5 ], "text": [ "I can answer the aspect of the question referring to the Anglo-Saxons, and can touch on the Celts and Vikings in relation to that. I did want to primarily focus on the Celts, but that would require explaining the differences between Gaelic, Britt...
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[ [ "http://www.bbc.co.uk/history/ancient/romans/romanisation_article_01.shtml" ] ]
8i84pn
why hotdogs called “hotdogs”?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8i84pn/eli5_why_hotdogs_called_hotdogs/
{ "a_id": [ "dypmkqk" ], "score": [ 3 ], "text": [ "These immigrants brought not only sausages to America, but dachshund dogs. The name most likely began as a joke about the Germans' small, long, thin dogs. In fact, even Germans called the frankfurter a \"little-dog\" or \"dachshund\" sausage, thu...
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[ [] ]
jtxjs
Why is it that politicians seem to be convinced that we don't have enough science graduates? Even though many people have graduated this year unable to find positions in industry/research/teaching courses
askscience
http://www.reddit.com/r/askscience/comments/jtxjs/why_is_it_that_politicians_seem_to_be_convinced/
{ "a_id": [ "c2f2y92", "c2f2zoa", "c2f30wi", "c2f3129", "c2f32jz", "c2f2y92", "c2f2zoa", "c2f30wi", "c2f3129", "c2f32jz" ], "score": [ 3, 2, 2, 2, 2, 3, 2, 2, 2, 2 ], "text": [ "As someone who graduated with a degree in physic...
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[]
[ [], [], [], [], [], [], [], [], [], [] ]
5fghym
Why do some minerals crystallize into cubes while others form hexagons?
askscience
https://www.reddit.com/r/askscience/comments/5fghym/why_do_some_minerals_crystallize_into_cubes_while/
{ "a_id": [ "dak74c6" ], "score": [ 6 ], "text": [ "There are several things that influence the shape of a large crystal: thermodynamics and kinetics. For this though, I am going to focus on the thermodynamics for the larger crystals you find in nature.\n\nLike everything in materials science and ...
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[]
[ [ "http://nptel.ac.in/courses/113101003/downloads/partII/module4.pdf", "http://agetrail.com/imgs/a/a/n/h/z/1___iron_pyrite_fools_gold_gemstone_crystal_cluster_with_sphalerite_specimen_3_lgw.jpg", "https://www.researchgate.net/profile/Santi_Prestipino/publication/235681139/figure/fig1/AS:306535415730191@...
26jf60
Why has fascism in Italy been more present than in for example Spain or Portugal, countries with a similar history of fascism?
As a European, the recent elections have shown that there are many political parties with fascist tendencies growing at the moment. In many countries this influx of nationalist ideas are fairly new. With Italy as an exception. Why has fascism been a constant in the italian political landscape? Thank you all contributo...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/26jf60/why_has_fascism_in_italy_been_more_present_than/
{ "a_id": [ "chroc13" ], "score": [ 2 ], "text": [ "Be careful describing Francoist Spain as 'fascist.' The Falange--the Spanish fascist party--got less than 0.01% of the vote in the [1936 election that preceded the Spanish Civil War](_URL_0_). That's less than 7,000 votes. There were facist as...
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[ [ "http://en.wikipedia.org/wiki/Spanish_general_election,_1936" ] ]
71qp3e
What is the highest resolution a screen can have, at least in theory. And when would the pixel size become so small that it doesn't matter to the eyes anymore?
askscience
https://www.reddit.com/r/askscience/comments/71qp3e/what_is_the_highest_resolution_a_screen_can_have/
{ "a_id": [ "dndf372", "dndgmou" ], "score": [ 15, 3 ], "text": [ "The amount of pixels on a screen is unbounded; one can always build a bigger screen with more pixels. However, the usefulness of a massively huge screen is limited, which takes us to the second part of your question.\n\nCur...
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[ [], [] ]
3ixj6o
what would it take for americans to stop having guns?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3ixj6o/eli5_what_would_it_take_for_americans_to_stop/
{ "a_id": [ "cukipm5", "cukirls", "cukizru" ], "score": [ 4, 2, 2 ], "text": [ "Nothing. And as an American we don't give a fuck what you Brits think. Keep to your side of the ocean and maybe do something about that deeply fucked up surveillance state of yours before you worry abo...
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[ [], [], [] ]
2u711e
why do some males find glasses attractive?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2u711e/eli5_why_do_some_males_find_glasses_attractive/
{ "a_id": [ "co5omdp" ], "score": [ 2 ], "text": [ "Because the girl can look over them at you, tilting their head down. This mimics a slightly submissive posture and shows the whites of the eye around the bottom, and widening of the eyes is an unconscious sign of arousal. The resulting \"sultry s...
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3y5td0
Are extra spatial dimensions something we can accurately perceive with a trained mind?
On that note, it seems the only way to begin to perceive these dimensions is by seeing wireframe shapes in constant rotation. I feel that there is a way to perceive these in our mind with extra mental senses, maybe artificial senses of time/space and seemingly impossibly connected points in space (like how worm holes...
askscience
https://www.reddit.com/r/askscience/comments/3y5td0/are_extra_spatial_dimensions_something_we_can/
{ "a_id": [ "cyatvg0", "cyb2vo7", "cyb96nz" ], "score": [ 123, 28, 5 ], "text": [ "Yes, a trained mind can perceive spatial dimensions of any dimension! You just have to train yourself to look at these spaces through the lens of equations, rather than trying to perceive it with the...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Differential_geometry", "https://en.wikipedia.org/wiki/Linear_algebra" ], [ "http://miegakure.com/", "http://mathoverflow.net/questions/25983/intuitive-crutches-for-higher-dimensional-thinking", "http://www.savoir-sans-frontieres.com/JPP/telechargeables/Engli...
3m8hrp
Does the perceived size of the moon actually increase as it moves from the horizon to overhead? Or is it just an optical illusion?
I'm in a bit of a bet with my wife. She swears the moon is bigger in the sky when it's near the horizon and gets smaller as it gets higher. I've told her it's the same size, but only looks bigger because of the difference in perspective. Once it is higher up, there is more empty sky surrounding it which makes it seem s...
askscience
https://www.reddit.com/r/askscience/comments/3m8hrp/does_the_perceived_size_of_the_moon_actually/
{ "a_id": [ "cvd3w3q", "cvd40ki", "cvdjq8o" ], "score": [ 19, 2, 6 ], "text": [ "You win the bet. The moon does *seem* larger to the eye near the horizon, but it's an illusion. Images like [this one](_URL_0_) allow a direct comparison of the apparent size of the moon at different p...
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[]
[ [ "http://www.thisismarvelous.com/wp-content/uploads/2015/08/moon_rise_la_dan_marker_moore.jpg" ], [ "https://en.m.wikipedia.org/wiki/Moon_illusion" ], [] ]
1s0r5d
Can the bacteria in your mouth utilize artificial sweetener? In other words, can artificial sweeteners give you cavities?
So, when I went in for a filling I asked the dentist if artificial sweeteners could cause cavities. He didn't know, but said that his best guess would be that they did not. Artificial sweeteners are basically things that taste sweet, but are not bioavailable to the human body. But are they as equally so for the bact...
askscience
http://www.reddit.com/r/askscience/comments/1s0r5d/can_the_bacteria_in_your_mouth_utilize_artificial/
{ "a_id": [ "cdsxjo1" ], "score": [ 2 ], "text": [ "Artificial sweeteners aren't sugar, but most of them can be metabolized by bacteria. For example, aspartame is a peptide. \n\nBut they aren't frementable, so when they are metabolized, they don't generate the acids that wreck your enamel. I don't...
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[ [] ]
85o5p1
How did Chechnya fall into radical Islamism while Bosnia & Herzegovina, despite being under even more direct support by Islamists and Jihadists than Chechnya, stayed a secular state?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/85o5p1/how_did_chechnya_fall_into_radical_islamism_while/
{ "a_id": [ "dw0440z", "dw05ynv" ], "score": [ 6, 34 ], "text": [ "Chechen resistance to Russia had historic ties to radical Islam. Imam Shamil, probably the most notable Chechen resistance leader of the 19th century (when Russia first tried to conquer Chechnya), was obviously a religious ...
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[ [], [] ]
272yt2
What type of people became explorers an colonists? Was there a common background or profession?
> Those vessels sailing out into the unknown, they weren't carrying noblemen or aristocrats, artists or merchants. They were crewed by people living on the edge of life: the madmen, orphans, ex-convicts, outcasts like myself. As a felon, I'm an unlikely candidate for most things. But perhaps not for this. Perhaps I am...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/272yt2/what_type_of_people_became_explorers_an_colonists/
{ "a_id": [ "chwyd5o" ], "score": [ 2 ], "text": [ "I don't have a general answer, but I have some specific examples of those who had a choice to go exploring and did: Edmond Halley, who was exploring the oceans in the 17th century, Joseph Banks, who traveled on James Cook's first voyage in the 18...
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[ [] ]
1ouy4b
Why does sound move so slowly in a Bose-Einstein condensate?
Sound in a BEC moves at 0.0022 meters per second. _URL_0_ Sound in air moves 331 meters per second. _URL_1_ Also, what happens when you resonate a shockwave inside a BEC? Will it explode like glass?
askscience
http://www.reddit.com/r/askscience/comments/1ouy4b/why_does_sound_move_so_slowly_in_a_boseeinstein/
{ "a_id": [ "ccw9hsq" ], "score": [ 3 ], "text": [ "So the unique quality of the BEC is that they occupy the same quantum state, right? For all intents and purposes, it makes sense to look at a BEC of sodium (as your linked paper uses), as a single sodium cluster. \n\nThe speed of sound in a mater...
[]
[ "http://arxiv.org/pdf/1205.4774v1.pdf", "http://en.wikipedia.org/wiki/Speed_of_sound" ]
[ [ "http://onlinelibrary.wiley.com/doi/10.1002/qua.560560515/pdf" ] ]
1qpegr
How does digestion work when you're upside-down? If hung upside-down, would you eventually starve, even if you had food?
askscience
http://www.reddit.com/r/askscience/comments/1qpegr/how_does_digestion_work_when_youre_upsidedown_if/
{ "a_id": [ "cdf6n89", "cdf8wc1", "cdfarf1" ], "score": [ 32, 8, 3 ], "text": [ "No, the smooth muscles in your esophagus will push the food down into your stomach independent of gravity. This is why you can take a gulp of water upside down.\n\nAs for the stomach and intestines, th...
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[ [], [], [] ]
9pfgdl
What did a college level world history textbook look like in 1900?
Specifically, I am curious about what was being taught to students that would go on to become major players - as adults - in the events that led to World War 1.
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/9pfgdl/what_did_a_college_level_world_history_textbook/
{ "a_id": [ "e81g0ih" ], "score": [ 12 ], "text": [ "It really would not have existed, at least not really until after WW2.\n\nWorld History as a field is still pretty new-- as our courses in World History at most universities. Prior to that, the most common history class that any college educate...
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6ht3v0
how come plenty of deities in different ancient polytheist civilisations had more than one association?
For example, Zeus was known as the sky god and the god of lightning but Athena was the goddess of wisdom, knowledge, war strategy, craftsmanship and so on. Same other ancient civilisations such as Ra was the Egyptian god of the sun while Seth was the god of chaos, violence, confusion, anarchy, war and so on. Since an...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6ht3v0/eli5_how_come_plenty_of_deities_in_different/
{ "a_id": [ "dj0wtic" ], "score": [ 2 ], "text": [ " > ancient civilisations shared similar ideologies\n\nThey didn't. And you need to understand the timescales involved: the Ancient Egyptian civilisation goes back to long before the 30th century BC, while the Ancient Greek civilisation didn't ge...
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4ri6zo
how is a global recession possible? doesn't the reduction of money from one economy doing poorly have to go into another economy doing well?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4ri6zo/eli5_how_is_a_global_recession_possible_doesnt/
{ "a_id": [ "d51a6vu", "d51aa6z", "d51adxv", "d51apvc", "d51bddl", "d51egrz", "d51erem", "d51f4jy", "d51igc8", "d51iwx8", "d51izbw", "d51k495", "d51leqx", "d51lgl8", "d51loyy", "d51nplz", "d51p5it", "d51q1ua", "d51qq2k", "d51r1kh", "d...
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[]
[ [], [], [], [], [], [], [], [], [ "http://www.valuewalk.com/2016/06/venezuela-abolish-currency/" ], [], [ "economicprinciples.com" ], [], [], [], [], [], [], [], [], [], [ "https://en.m.wikipedia.org/wiki/General_equilibrium_theory" ], [], [], [ "h...
3srqpx
What knowledge did the Incas have of the Amazon Rainforest and the people who lived there? How much Inca influence was there in the area?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/3srqpx/what_knowledge_did_the_incas_have_of_the_amazon/
{ "a_id": [ "cwzzqyh", "cx02tw5" ], "score": [ 22, 6 ], "text": [ "The people of the Amazon were semi-nomadic, which made the Inca style of conquest and cultural integration difficult. Furthermore they were known to be violent. This was their best defense against conquest by both the rulin...
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[ [], [ "https://books.google.com/books?id=i12ax9VsPS0C&lpg=PA26&dq=Amazon%20feathers%20Inca&pg=PA26#v=onepage&q=Amazon%20feathers%20Inca&f=false" ] ]
27jtlc
Why did Julius Caesar fear prosecution when his term as governor of Cisalpine/Transalpine Gaul?
I've read a few times that one of the reasons Julius Caesar marched into Rome with his legions was because he feared if he disbanded his army and returned to Rome as he was supposed to, that he would be "prosecuted" for some reason. I've never managed to get to the bottom of what he was to be prosecuted for, could any...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/27jtlc/why_did_julius_caesar_fear_prosecution_when_his/
{ "a_id": [ "ci1i99o", "ci1mvg5" ], "score": [ 44, 279 ], "text": [ "There were three things that Caesar was undoubtedly guilty of, and would have been roasted alive in any court in Rome for.\n\nFirst, his entire political career had been defined by bribery. To gain political office in Rom...
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[ [], [ "http://thebigboard0710.files.wordpress.com/2011/11/pompey-60bc-pontusmap2.jpg", "http://books.google.com/books?id=H9ClB8ykgIcC&pg=PA199&lpg=PA199&dq=cicero+cesspit+of+romulus&source=bl&ots=pF5vKWtM7t&sig=Tb4gb8Sr5-gIcgL-eMS89dxmQuE&hl=en&sa=X&ei=lD2TU7SjPMSRqgbA7...
av2gi8
what actually happens inside of a meat when its marinaded that gives it the flavor?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/av2gi8/eli5_what_actually_happens_inside_of_a_meat_when/
{ "a_id": [ "ehcaqrb", "ehcctof", "ehcdlgk" ], "score": [ 3, 3, 3 ], "text": [ "Depends a bit on the type of marinade you're using but generally three things:\n* adds salt (which helps a lot with general flavor perception)\n* allows more moisture to be absorbed so the meat is juici...
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[ [], [], [] ]
15oypi
Does a mug of coffee retain it's temperature for longer while sitting on a table or while held by hands?
Science is an interest of mine but not my forte, for that reason I will be adding **(pc)** next to the assumptions I make, standing for please confirm, I would be grateful if they can be verified. Let's take the average room temperature at 21°c. Average temperature of the male hand is 32°c (pc), the outside of a mug c...
askscience
http://www.reddit.com/r/askscience/comments/15oypi/does_a_mug_of_coffee_retain_its_temperature_for/
{ "a_id": [ "c7ok7pg" ], "score": [ 2 ], "text": [ "Sitting on the table would loose less heat. Harder to lose heat to the air than your hand. \n\nImagine it like this. When you hold the mug feel how warm your hands are. Thats heat you are taking away fom the jug. Then feel the air right next t...
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ckmxex
How is the lithosphere affected by global warming?
Global warming affects the entire planet in numerous ways. It affects the atmosphere by having higher concentrations of CO2, it affects the biosphere because living things need oxygen to survive. It affects the hydrosphere with ocean temperatures increasing each year. It affects the cryosphere with mass ice sheet loss...
askscience
https://www.reddit.com/r/askscience/comments/ckmxex/how_is_the_lithosphere_affected_by_global_warming/
{ "a_id": [ "evpuqf7" ], "score": [ 2 ], "text": [ "Well the lithosphere does include surface sediments, and the types of sediments deposited depends on local climate--and sea level, near the coasts--so that's a pretty straightforward example. Global erosion should also increase due to higher temp...
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xjb17
Does the body forgo its fat storage and consume muscle while you're on a Caloric deficit?
I have a couple questions leading up to the title question as well. 1.) Let's say your normal Basal Metabolic Rate (BMR) is 2k calories/day. But, over the course of major dieting, you cut down to 1.5k calories/day, so you're functioning at a 500 Calorie deficit. I'm under the assumption that BMR decreases under st...
askscience
http://www.reddit.com/r/askscience/comments/xjb17/does_the_body_forgo_its_fat_storage_and_consume/
{ "a_id": [ "c5mxg05" ], "score": [ 6 ], "text": [ "Here is a wall of text, forgive me.\n\n\nQuestion 1: It is possible that there is research out there to figure that out, but the only way to truly test that hypothesis (at least that I can think of) would be to have otherwise healthy people lay i...
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1elthj
Why is the climate of extreme South America so different from the corresponding North American latitudes?
askscience
http://www.reddit.com/r/askscience/comments/1elthj/why_is_the_climate_of_extreme_south_america_so/
{ "a_id": [ "ca1h44f", "ca1hdov", "ca1ktef" ], "score": [ 2, 6, 2 ], "text": [ "Climate is an incredibly complex system. I can't answer your question but I can give you this 2006 study about how one part of the Sahara has a large effect on the Amazon\n\n_URL_0_", "Tierra del F...
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[ [ "http://iopscience.iop.org/1748-9326/1/1/014005/fulltext/" ], [], [] ]
ebxzh2
why does deleting things clear storage even though the pc only can’t find it?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ebxzh2/eli5_why_does_deleting_things_clear_storage_even/
{ "a_id": [ "fb7v2nb", "fb7va1o", "fb7vbe5", "fb7vbqq", "fb7vgv5", "fb7vkb0", "fb7w09s", "fb820es" ], "score": [ 2, 2, 10, 2, 2, 2, 5, 2 ], "text": [ "Like, I heard that the pc doesn’t delete stuff, if you click on delete, but rather just doe...
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[ [], [], [], [], [], [], [], [] ]
18qrfm
Why is the oxygen produced by the Amazon forest mostly consumed within the forest itself?
Although the Amazon forest produces about 20% percent of the worlds oxygen most of it is consumed by the forest itself - how?
askscience
http://www.reddit.com/r/askscience/comments/18qrfm/why_is_the_oxygen_produced_by_the_amazon_forest/
{ "a_id": [ "c8h580d", "c8h6mpl", "c8h6qqh" ], "score": [ 2, 8, 3 ], "text": [ "Plant cells still respire, so they need oxygen to stay alive.", "Plants produce O2 via photosynthesis in a 1:1 ratio with C incorporated into the plant body. Therefore, for a net transport of O2 ou...
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[ [], [], [] ]
1vptj9
why does nascar not like drafting?
Couldn't they just have different drafting rules per race or would that require a differently built car every race?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1vptj9/eli5_why_does_nascar_not_like_drafting/
{ "a_id": [ "ceunnu6" ], "score": [ 2 ], "text": [ "Its more or less the track conditions than the car from my experience. Example you goto a high bank track like Texas motor speedway and start drafting, real drafting bumpers within a couple inches if not kissing, speeds will increase above what i...
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7haelo
what makes some names feminine and some names masculine?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7haelo/eli5_what_makes_some_names_feminine_and_some/
{ "a_id": [ "dqpnqd4" ], "score": [ 2 ], "text": [ "To answer that question well, we need to know if you are talking about names in English or in another language. English is kinda funny with the gender of it's words. Other languages, like French or Spanish, make every single word either feminine ...
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2hbygz
What were the benefits of the Ulster Plantations in Northern Ireland?
I feel I always hear of the negative consquences of the plantations, but what did they provide for the Crown? What were the arguments at the time?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2hbygz/what_were_the_benefits_of_the_ulster_plantations/
{ "a_id": [ "ckrehvd" ], "score": [ 3 ], "text": [ "OK, long time lurker here with his niche topic finally being mentioned :)\n\nThe main benefits to the crown at the time included firstly a huge protestant and loyalist/unionist majority for centuries to come (starting to become the minority at th...
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[ [ "http://www.sciencedirect.com/science/article/pii/S2212682112000297" ] ]
49hc0f
what happens to your sense of smell after being hit in the nose?
When ever I get hit in the nose, my sense of smell changes for a few seconds and I smell a very metallic smell and can't smell anything else other than that for a few seconds. What's happening in your olfactory system that's 1: shutting out other smells and 2: producing the metallic smell?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/49hc0f/eli5_what_happens_to_your_sense_of_smell_after/
{ "a_id": [ "d0rtnwy" ], "score": [ 6 ], "text": [ "Blood smells metallic to a lot of people. Depending on how hard you've been booped, you'll get a metallic smell, if not a coppery taste too, particularly if you've had a particularly deep conversation with someone else's knuckles.\n\nAlso being s...
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aklg0c
I’ve read previously that Australian troops were the first in WW2 to fully stop the Germans on land, in Tobruk, and the first to stop the Japanese on land, in New Guinea. How did axis troops/leaders view Australian troops in general?
I’ve read quotes from German POWs and officers that attest to Aussie fighting prowess, my favorite being from Rommel: “if I was to invade hell, I would use Australians to take it, and New Zealanders to hold it.” Are their Japanese accounts? Or Italian? I know Douglas Mcarthur was less than flattering.
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/aklg0c/ive_read_previously_that_australian_troops_were/
{ "a_id": [ "ef71bb5" ], "score": [ 116 ], "text": [ "Some gentle clarification: by the time Australia and Japan went to war against each other, the latter had already suffered a number of relatively minor but symbolically significant defeats in China (contemporary observers saw these as challenge...
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3h5t2m
During the Cold War, East Germans were prohibited from escaping to the west, but if they did, was it a crime in West Germany to have escaped?
I just think these escape attempts, if successful, could mean some free passive propaganda to the West.
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/3h5t2m/during_the_cold_war_east_germans_were_prohibited/
{ "a_id": [ "cu4sfrc" ], "score": [ 3 ], "text": [ "No, it wasn't a crime. About 3.5 million GDR citizens fled, 3 million of those to West Germany ([Source](_URL_0_)). There were state run refugee camps in the west where refugees got first orientation. A lot of people also had relatives in the wes...
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[ [ "http://www.chronikderwende.de/english/term_jsp/key=e_gdr+refugees.html", "https://books.google.de/books?id=U0BVt0eewacC&pg=PA105#v=onepage&q&f=false" ] ]
7twgie
Why do we find marine and land organisms buried together?
I've been wondering this as I've heard this claim from numerous sources and I just wanted to know, why do we see this?
askscience
https://www.reddit.com/r/askscience/comments/7twgie/why_do_we_find_marine_and_land_organisms_buried/
{ "a_id": [ "dtg5rf6" ], "score": [ 5 ], "text": [ "Primarily due to rising and falling sea levels. When the tectonic plates move they push up landmasses that were once underwater. The same way mountain ranges form over great spans of time. If you begin with a body of water (even part of an ocean)...
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aa8jrk
if the individual acts involved are already illegal, why did they make a recent law making lynching a crime?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/aa8jrk/eli5_if_the_individual_acts_involved_are_already/
{ "a_id": [ "ecqwnbv" ], "score": [ 2 ], "text": [ "[The lynch law](_URL_0_) is federal. While things have improved over the last fifty years, many states have demonstrated a sympathetic reluctance to prosecute the perpetrators of mob violence. If justice appears to be miscarrying the feds can ste...
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[ [ "https://www.congress.gov/bill/115th-congress/senate-bill/3178/text" ] ]
7h8sna
Can anybody recommend a recent biography of Wu Zetian ancient china’s female emperor?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/7h8sna/can_anybody_recommend_a_recent_biography_of_wu/
{ "a_id": [ "dqp4map" ], "score": [ 5 ], "text": [ "The answer will depend on your interest in Wu and your language skills, but in all cases the basic problem remains the same; the sources we have are very restricted and for the most part treat the empress as an example for future rulers to learn ...
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[ [ "https://mikedashhistory.com/2012/08/11/the-demonization-of-empress-wu/" ] ]
64wbml
How did the hebrew god Yahweh evolve?. Is he really an offshoot of El, and was it polytheistic in its origins?
I've been wondering this for a while but so far have only picked up bits and pieces. _URL_0_ Above is the best answer I can find to this question.Please ignore the religous convictions and focus on the logical argument and evidence presented. Please, I'm asking for pure evidence here, not religious convictions. What...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/64wbml/how_did_the_hebrew_god_yahweh_evolve_is_he_really/
{ "a_id": [ "dg5nhmp" ], "score": [ 26 ], "text": [ "This is a very interesting topic. The natural place to start is of course the Old Testament itself. First, we have to clear some things up. \"Yahweh\" or \"Yahu\" and \"El\" were two distinct gods in the Caananite pantheon. This is actually refl...
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[ "http://www.city-data.com/forum/religion-spirituality/1818445-evolution-yahweh-pagan-tribal-god-israel.html" ]
[ [] ]
1en76n
If a comet is traveling through space, a vacuum, then why does it leave a 'trail' at all?
askscience
http://www.reddit.com/r/askscience/comments/1en76n/if_a_comet_is_traveling_through_space_a_vacuum/
{ "a_id": [ "ca1v0tj", "ca1v29v", "ca1v5uq" ], "score": [ 11, 157, 19 ], "text": [ "The Sun vaporizes parts of it as it approaches, and the solar wind shapes the tail.\n\n_URL_0_", "Comets only have visible tails when they are near the sun. The sun heats up their surface and so...
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[ [ "http://en.wikipedia.org/wiki/Comet_tail#Tail_formation" ], [ "http://spaceplace.nasa.gov/tails-of-wonder/comet_diagram.en.gif" ], [ "http://1.bp.blogspot.com/-NJJ2r7VIs9Y/ULN27-XSr-I/AAAAAAAALyQ/zSmZxJIJjJA/s1600/Comet+Halley+close+up.jpg" ] ]
2ciyao
why is my printer always fiddling with itself?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2ciyao/eli5_why_is_my_printer_always_fiddling_with_itself/
{ "a_id": [ "cjfx9cz" ], "score": [ 10 ], "text": [ "It's \"cleaning\" itself so the ink doesn't get jammed." ] }
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bm8azh
molten salt nuclear reactors
How do they work, and on what principles?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bm8azh/eli5_molten_salt_nuclear_reactors/
{ "a_id": [ "emuyvh0" ], "score": [ 5 ], "text": [ "Well, no one has answered yet... So I'll try to explain it: To put it simply. An MSR uses salt instead of water to transfer thermal energy. However, instead of having fuel rods like in traditional nuclear reactors, the uranium fuel is mixed in wi...
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5vmuc4
Lombards and Langobards?
So I know that in italian langobard is used to refer to the Germans that conquered most of italy. Are the people in medieval history called Lombards the descendants of these Langobards or are they a native Latin people who adopted the name because the region they lived in was now called Lombardia?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/5vmuc4/lombards_and_langobards/
{ "a_id": [ "de3eg1b" ], "score": [ 3 ], "text": [ "They're two names - or, rather, variations on a name - for the same people." ] }
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2m70ib
how does an automated telephone assistant know which numbers you dial?
I.E. "if you know your extension, please dial it now" How does it know which numbers you input? I assume each number has a slightly different tone, and it detects them somehow... if so, is it just a computer program that analyzes the tone?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2m70ib/eli5_how_does_an_automated_telephone_assistant/
{ "a_id": [ "cm1hgfy", "cm1jqk8" ], "score": [ 10, 4 ], "text": [ "Yes. It's actually two tones overlaid on top of each other. One tone indicates which row contains the button you pressed, and the other indicates which column. A computer can easily pick out the two tones, and work out whic...
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bpyjkz
Is there a way to identify the Rate Determining Step in a mechanism?
Can one pinpoint which step is rate determining without any specific information besides the steps themselves? If so, how is this done?
askscience
https://www.reddit.com/r/askscience/comments/bpyjkz/is_there_a_way_to_identify_the_rate_determining/
{ "a_id": [ "eo0wg8d", "eo13pwj" ], "score": [ 7, 4 ], "text": [ "Depends how good your knowledge of reaction mechanisms is. You can make a very educated guess based on what you know about intermediates’ energies (ie carbocations are unstable and take longer to form) but without kinetic da...
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[ [], [] ]
1p772z
how is the money distributed when you donate to research cancer?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1p772z/eli5_how_is_the_money_distributed_when_you_donate/
{ "a_id": [ "cczf709", "cczgbxj", "cczgcjb", "cczgebc", "cczh4jj", "cczh60c", "cczhatf", "cczhs6h", "cczhtmy", "cczhvxk", "cczi1hu", "cczv6h1" ], "score": [ 7, 12, 33, 60, 21, 2, 3, 4, 4, 3, 2, 2 ], "text": [ "...
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[ [], [ "http://stlouis.pedalthecause.org/beneficiaries_research.jsp" ], [], [], [], [], [ "https://www.consano.org/home/index" ], [ "http://en.wikipedia.org/wiki/Damon_Runyon_Cancer_Research_Foundation", "http://www.damonrunyon.org/donate/" ], [], [], [ "http://youtu.be/...
2jf03s
How successful was colonial America in keeping a separation between church and state?
Before during and after the bill of rights.
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2jf03s/how_successful_was_colonial_america_in_keeping_a/
{ "a_id": [ "clbdw2t" ], "score": [ 2 ], "text": [ "One thing to bear in mind is that the meaning of the First Amendment was still being debated in the early years of the Republic. No-one flipped a switch and *boom* all traditions of state religion were extinguished. I wrote a comment on a similar...
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[ [ "http://www.reddit.com/r/AskHistorians/comments/2gqzw0/to_what_extent_did_thomas_jeffersons_writing/ckltomx", "http://scholar.google.com/scholar_case?case=5628256980652867975&hl=en&as_sdt=6&as_vis=1&oi=scholarr" ] ]
f94p2b
how do fat reduction procesures work?
Lately, people at work and at the gym are in this craze for these procedures (cryosculpting, laser lipo, etc) and they've been sending me Groupon links left and right. I was under the impression that fat cells can't be removed, just drained or emptied. Do any of these things actually remove fat cells? How do they wo...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/f94p2b/eli5_how_do_fat_reduction_procesures_work/
{ "a_id": [ "fipg2wu", "fipm42y" ], "score": [ 4, 3 ], "text": [ "Oh yes, fat cells can certainly be removed. Liposuction physically removes the adipose tissue from the body.\n\nThese are just temporary solutions though, your body can simply create more fat cells over time or have the curr...
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54150f
Aside from the Lend Lease, why didn't the allies send military support to the Soviet Union during WW2?
Specifically, why didn't they send ground forces to assist the Soviets and instead focus on the invasion of Europe from the sea/Africa? Were the western allies already anticipating friction with the Soviet Union post war?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/54150f/aside_from_the_lend_lease_why_didnt_the_allies/
{ "a_id": [ "d7yhc1a" ], "score": [ 2 ], "text": [ "The Allies were in no position to send any amount of ground forces to assist the Soviets on the Eastern Front. Not only was the British Army preoccupied with operations in North Africa and the Mediterranean at large (and later the Pacific theatre...
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