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6kbkit
what modulo is in computing, and how it works.
i am taking a SoloLearn course on python, and I am having trouble understanding modulo's. I am sure I can just keep on in the course and figure it out, but I want to really understand it. Any help helps. Thanks!
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6kbkit/eli5_what_modulo_is_in_computing_and_how_it_works/
{ "a_id": [ "djks0it" ], "score": [ 12 ], "text": [ "Modulo is an operation that gives you the remainder after division. It is often represented by the % sign.\n\nSo, for example, \n\n10%6=4. If you divide 10 by 6, you get 1 remainder 4. \n\nIt's often used to check for multiples of something. ...
[]
[]
[ [] ]
8ea5ae
if all the wealth in the world were divided equal between all people which country would best represent the standard of living we would have?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8ea5ae/eli5_if_all_the_wealth_in_the_world_were_divided/
{ "a_id": [ "dxtkhn9" ], "score": [ 2 ], "text": [ "GWP according to the 2014 CIA Facebook is US$16,100. \n\nIn 2017, Brazil had a GDP of $15,500 per capita. China was $16,600\n\nSorry about the mismatch years... \n\nEdit: Found the 2017 GWP figure which has GDP per capita at $17,300 (estimated). ...
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[ [] ]
ppktj
why are there different political parties in the united states? like why does every candidate have to be either democrat or republican to have a chance at winning?
For example: John Smith, Republican, Nebraska Sally Swordfish, Democrat, Rhode Island Whats wrong with: John Smith, Nebraska. Sally Swordfish, Rhode Island. This way people could actually vote for someone because of the policies and issues they support rather than which gang (party) they are associated with. Pleas...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/ppktj/eli5_why_are_there_different_political_parties_in/
{ "a_id": [ "c3r7y0v", "c3r860x", "c3ra2ba" ], "score": [ 2, 6, 2 ], "text": [ "It's not really like people *want* there to be only 2 political parties, that just gives them the best chance of winning. When a third party is introduced they take away votes from either the democrats ...
[]
[]
[ [], [ "http://youtu.be/s7tWHJfhiyo" ], [ "http://en.wikipedia.org/wiki/Spoiler_effect", "http://en.wikipedia.org/wiki/Duvergers_law" ] ]
2e40jq
why do babies in prenatal stage suck their thumb in the womb?
heard about this in my child dev. class today and asked the teacher why, but she couldnt explain. googled and not much came up.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2e40jq/eli5_why_do_babies_in_prenatal_stage_suck_their/
{ "a_id": [ "cjvvhx4" ], "score": [ 3 ], "text": [ "It's a matter of reflexes. Babies are born with an array of interesting reflexes that include (but aren't limited to): a startle reflex, step reflex and a sucking reflex. That last one is the one you're thinking of. Babies will show these reflexe...
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[]
[ [] ]
47pf0b
How can we say that a black hole grows, if in our frame of reference, no matter actually falls past the event horizon?
I guess the title explains it all. I understand that matter that falls in the black hole experiences normal time so it would go past the horizon pretty quicky, but to the rest of the universe, matter never actually goes past the horizon. Or so I've heard. How can the black hole grow then? Bonus question: I have read ...
askscience
https://www.reddit.com/r/askscience/comments/47pf0b/how_can_we_say_that_a_black_hole_grows_if_in_our/
{ "a_id": [ "d0enn84", "d0eqr6q", "d0esa2b" ], "score": [ 17, 9, 4 ], "text": [ "The black hole can grow just like any other massive object, there will just be a lot of stuff near the horizon when it is looked at from our reference frame. It doesn't really matter whether or not the...
[]
[]
[ [], [ "https://en.m.wikipedia.org/wiki/Shell_theorem" ], [] ]
8alsbi
why does hearing your own voice through a recording sound so much different than how you hear/perceive your voice when speaking in general?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8alsbi/eli5_why_does_hearing_your_own_voice_through_a/
{ "a_id": [ "dwzm0o5", "dwzm2xt", "dwzpkf0", "dwzposj", "dwztjza", "dwzy1fg", "dwzzy3l", "dx006t9", "dx00ayt", "dx00qtz", "dx014my", "dx01c45", "dx01j3j", "dx01m9h", "dx01pkv", "dx020is", "dx020s5", "dx035b0", "dx038mw", "dx03b7a", "d...
[]
[]
[ [], [ "https://www.scientificamerican.com/article/why-does-my-voice-sound-different/" ], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [] ]
f92xvz
why couldn't you live forever on an artificial heart?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/f92xvz/eli5_why_couldnt_you_live_forever_on_an/
{ "a_id": [ "fip4b77", "fip4ptf" ], "score": [ 3, 2 ], "text": [ "Your heart stopping beating isn't the only reason you die. Your body is a complex system of organs that are all dependent upon each other. Your liver and kidney's filter out naturally occurring wastes that would poison you...
[]
[]
[ [], [] ]
ardysk
Can we taste gases with our tongues?
If yes, why and how. If no why not?
askscience
https://www.reddit.com/r/askscience/comments/ardysk/can_we_taste_gases_with_our_tongues/
{ "a_id": [ "ego61ti" ], "score": [ 7 ], "text": [ "Definitely. The old expression, the air is so thick i can taste it, means a lot here. Two parts to taste really - it is really part of smell. People who cant smell, cant taste nearly as well. Taste and smell are intertwined, and we primarily smel...
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[ [] ]
3nfh1x
What is the absolute data capacity of a space 1 m^3?
How much information can possibly be stored in any given space? I'm tagging this as physics, but I think it may also be engineering-related.
askscience
https://www.reddit.com/r/askscience/comments/3nfh1x/what_is_the_absolute_data_capacity_of_a_space_1_m3/
{ "a_id": [ "cvnmrjv", "cvny5rn", "cvo2ewx" ], "score": [ 44, 3, 4 ], "text": [ "It's called the [Bekenstein bound](_URL_0_) which follows this relationship: \n\n > S/E ≤ 2piR\n\nThe inequality says that the ratio of entropy, S, to energy, E, in a bounded system is restricted by ...
[]
[]
[ [ "http://www.phys.huji.ac.il/~bekenste/PRD23-287-1981.pdf" ], [ "https://en.wikipedia.org/wiki/Limits_to_computation#Physical_limits" ], [] ]
1vk5cl
Why were the HMS Terror and Erebus so poorly outfitted for the Franklin Expedition?
While researching the letters of Lady Franklin I came across sources claiming that the expedition had left Britain with spoiled food. It was also noted that the expeditions carried with it a large number of books and even a grand piano, seemingly taking up a large amount of usable space. What caused the ship to be outf...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1vk5cl/why_were_the_hms_terror_and_erebus_so_poorly/
{ "a_id": [ "chir0go" ], "score": [ 2 ], "text": [ "They were well-outfitted.... for what they *thought* would be a quick and easy expedition.\n\nA lot of people thought the expedition would break through in one year, or at most, two years. They were using the best ships they had at the time, whic...
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[ [] ]
1pvkln
Could I increase the frequency of a radio wave emitted from an antenna to a point where it is in the visible light spectrum? Could I see it?
I've always wondered this because the two different phenomena, emitting a radio signal and visible light, are placed on the same spectrum. I suspect no is the answer, but why?
askscience
http://www.reddit.com/r/askscience/comments/1pvkln/could_i_increase_the_frequency_of_a_radio_wave/
{ "a_id": [ "cd6ir18", "cd6lvxl" ], "score": [ 16, 3 ], "text": [ "Well.. you can always try running towards the antenna is extremely high speeds. That should blueshift the emitted waves.\n\nOtherwise, I'm afraid antennas stop behaving according to conventional antenna theory by the time...
[]
[]
[ [], [] ]
datt4t
why before withdrawing blood, it takes time for the nurse to find your vein, while mosquitoes can bite you anywhere and get blood?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/datt4t/eli5_why_before_withdrawing_blood_it_takes_time/
{ "a_id": [ "f1urgk7", "f1usub6" ], "score": [ 6, 3 ], "text": [ "The nurse needs a lot more blood from you than the mosquito. You can indeed find blood basically anywhere in your body because of course every cell needs a supply. But most cells are getting this supply by blood seeping thro...
[]
[]
[ [], [] ]
mh3mg
When we are cold, what part of us is actually cold?
askscience
http://www.reddit.com/r/askscience/comments/mh3mg/when_we_are_cold_what_part_of_us_is_actually_cold/
{ "a_id": [ "c30uylu", "c30uylu" ], "score": [ 3, 3 ], "text": [ "That depends. There are two problems that arise when you get cold. When you get cold your body slows blood flow to the limbs to preserve heat in the more important parts of your body, brain and core. Your limbs can live with...
[]
[]
[ [], [] ]
1qh369
What is the correlation between base pair number and number of chromosomes of an organism?
We learned about the [C-value paradox](_URL_0_) in my Evolution class: “Two pioneering observations hinted at this conclusion and launched research on how genomes evolve. One observation was called the C value paradox. **In eukaryotes the total amount of DNA found in a cell, also known as its C-value, does not correla...
askscience
http://www.reddit.com/r/askscience/comments/1qh369/what_is_the_correlation_between_base_pair_number/
{ "a_id": [ "cdcycx4" ], "score": [ 4 ], "text": [ "No, there is no correlation here. For example, the cat genome is 2.7 billion base pairs and it has 38 chromosomes, the kangaroo has 3.3 billion base pairs and 16 chromosomes, and the horse is also 2.7 million base pairs and has 64 chromosomes. Ch...
[]
[ "http://en.wikipedia.org/wiki/C-value_enigma" ]
[ [ "http://scienceblogs.com/pharyngula/2008/04/21/basics-how-can-chromosome-numb/" ] ]
yxjfm
biological clocks.
I often wake up moments before my alarm or sometimes just "know" how much time has passed. How is this and why? How do our "clocks" compare with other animals'?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/yxjfm/eli5_biological_clocks/
{ "a_id": [ "c5zq353" ], "score": [ 2 ], "text": [ "There is a ~25 hour \"circadian rhythm\", which can be 're-synchronized' with the 24-hour clock as long as you're aware of the time of day. As a result your body's own biochemical cycles can closely follow the change of day into night and even th...
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[ [] ]
ychki
how did the astronauts take off the moon?
It seems like the launching of the rocket from the Earth is not an easy thing. Any little error or deviation can delay the launch. But how the hell without any equipment, launch station, etc did they manage to leave the moon?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/ychki/how_did_the_astronauts_take_off_the_moon/
{ "a_id": [ "c5ub729", "c5uc44l", "c5uctt6", "c5ucveb", "c5ud81t", "c5udrn0", "c5ueig9", "c5uep6t", "c5uff30", "c5ufw8w", "c5uil80", "c5ul4wq" ], "score": [ 78, 618, 3, 57, 20, 8, 5, 3, 3, 16, 2, 2 ], "text": [ ...
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[ [], [], [], [ "http://i.imgur.com/afHT8.jpg", "http://i.imgur.com/ck8vv.jpg", "http://i.imgur.com/UZVEl.jpg", "http://i.imgur.com/jndyd.jpg", "http://i.imgur.com/r8mfK.jpg", "http://i.imgur.com/XEAt5.jpg", "http://imgur.com/a/vldH3", "http://i.imgur.com/jPlfM.jpg" ], [ ...
6b19dy
Why does terminal velocity exist? Why don't we just keep falling faster?
askscience
https://www.reddit.com/r/askscience/comments/6b19dy/why_does_terminal_velocity_exist_why_dont_we_just/
{ "a_id": [ "dhj0ax2", "dhj0c0k", "dhj1uu2", "dhjfrx3", "dhky57v" ], "score": [ 21, 17, 10, 4, 2 ], "text": [ "Because air resistance increases at higher velocities, and in fact air resistance increases *faster* than velocity. So, as an object falls, at some point t...
[]
[]
[ [], [], [ "https://youtu.be/eWTsXrPWl5Q" ], [], [] ]
kkln5
Went to shoot some hoops outdoors this morning around 11:30 EST. The moon was out! What gives?
The moon was about 3/4 full opposite from the sun in the sky. I've seen the moon out in the day before but not so close to noon. Usually in the early dawn or early evening hours. Can any of my astronomically minded friends here explain? I'm in New England if that helps at all.
askscience
http://www.reddit.com/r/askscience/comments/kkln5/went_to_shoot_some_hoops_outdoors_this_morning/
{ "a_id": [ "c2l0aeo", "c2l0aeo" ], "score": [ 7, 7 ], "text": [ "Here's the [current Moon phase](_URL_0_).\n\nThe Moon is often visible during the day, people just don't notice it. Currently it's about 60% full. When it's full, it's directly opposite the Sun, so you see it come up at sund...
[]
[]
[ [ "http://www.die.net/moon/", "http://www.timeanddate.com/worldclock/astronomy.html?obj=moon&n=43" ], [ "http://www.die.net/moon/", "http://www.timeanddate.com/worldclock/astronomy.html?obj=moon&n=43" ] ]
cfsmv2
How is neuroelectricity generated in the brain?
We know that neural signals are a kind of electric signals in the brain that fire here and there to create a conscious circuit. But where does that electricity come from?
askscience
https://www.reddit.com/r/askscience/comments/cfsmv2/how_is_neuroelectricity_generated_in_the_brain/
{ "a_id": [ "eucg3yl", "eucn7sx", "euk37af" ], "score": [ 5, 11, 2 ], "text": [ "The electric charge is caused by the ionic potential across each nerve's cell membrane. There's a high concentration of sodium ions on one side and potassium ions on the other, and when the ions flow a...
[]
[]
[ [], [ "https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwiP36KuhsXjAhVQOKwKHX9HAT8QjRx6BAgBEAU&url=https%3A%2F%2Fsimple.wikipedia.org%2Fwiki%2FNeuron&psig=AOvVaw3HsOPEs4bhNRSO-idbuKX9&ust=1563765437770510", "https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Actio...
9cjlho
has the earth always had an atmosphere or did it develop one at some point ?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9cjlho/eli5_has_the_earth_always_had_an_atmosphere_or/
{ "a_id": [ "e5b7h68", "e5bc1j7", "e5bfbfa" ], "score": [ 2, 3, 2 ], "text": [ "In the biginning there was no atmosphere. It evolved over time when elements like oxigene or nitrogen lost zheir bindings to other elements. Earth gravity hindered the gasses to evaporate into space.", ...
[]
[]
[ [], [], [ "https://simple.m.wikipedia.org/wiki/Great_Oxygenation_Event" ] ]
3ywe2n
what junk status is and what it means for a country?
South Africa is about to hit junk status in 2016 with alot of political uprising and the firing of the finance minister. ELI5 What exactly junk status is and what it means for the future of S.A.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3ywe2n/eli5_what_junk_status_is_and_what_it_means_for_a/
{ "a_id": [ "cyhba8t" ], "score": [ 3 ], "text": [ "Junk status refers to country debt because just like people, countries get a credit rating. Anything lower than BBB rating by Moody's is considered junk, meaning bond holders may expect a default. The junk rating can arise as a combination of too...
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[ [] ]
pz8wn
why did the biosphere 2 project fail and why aren't they making a biosphere 3?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/pz8wn/eli5_why_did_the_biosphere_2_project_fail_and_why/
{ "a_id": [ "c3th1zk", "c3thp8o" ], "score": [ 2, 5 ], "text": [ "There are a lot of places online you can go to read about Biosphere 2. The basic idea was to create a completely sealed-off environment that could survive without any contact from the rest of the Earth. If they could get p...
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[ [], [] ]
9xvaf8
Is it true that in some battles of the First English Civil War, pikemen on both sides would just "wave their pikes around" pretending to be fighting, and hoping their commanders wouldn't notice it?
I was listening to Mike Duncan's Revolutions podcast, and at some point in [this episode](_URL_0_) (concerning the armies of the English Civil Wars) he says this: > The pikemen were usually bunched at the center of the battle line and operated much like an old Greek phalanx. They would line up 6 deep carrying 15 to 1...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/9xvaf8/is_it_true_that_in_some_battles_of_the_first/
{ "a_id": [ "e9w6mp8", "e9wtgsf" ], "score": [ 681, 412 ], "text": [ "I can find at least one contemporary attestation of this kind of thing happening, from no less authoritative a source than James, Duke of York—the future King James II—writing about the 1642 Battle of Edgehill (one of th...
[]
[ "https://www.revolutionspodcast.com/2013/10/supplemental-the-armies.html" ]
[ [], [ "https://www.reddit.com/r/AskHistorians/comments/7j6m6t/the_effectiveness_of_hand_to_hand_combat_or_how/dr4pkcw/", "https://www.reddit.com/r/AskHistorians/comments/6jd1pu/charges_did_they_get_scarier/" ] ]
4ekx9h
is the speed of light a literal physical speed limit in our universe, or is light simply the fastest thing we have found so far? is faster-than-light travel speed physically possible?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4ekx9h/eli5_is_the_speed_of_light_a_literal_physical/
{ "a_id": [ "d20z677", "d20z7t5", "d20z8jm", "d20zb79", "d210dtw", "d215ilj", "d217zcl" ], "score": [ 12, 24, 2, 2, 5, 5, 3 ], "text": [ "It is the ultimate speed limit. You have to learn a little math to understand why, and get some concepts down.\n...
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[]
[ [], [], [], [ "https://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Rel-Newton-Kinetic.svg/300px-Rel-Newton-Kinetic.svg.png" ], [], [], [] ]
yhcxt
Does playing outside strengthen the immune system during childhood development?
Would a parent not letting a kid play outside hurt the development? Was having a bit of trouble phrasing my question properly. Hope I got the point across.
askscience
http://www.reddit.com/r/askscience/comments/yhcxt/does_playing_outside_strengthen_the_immune_system/
{ "a_id": [ "c5vmme6" ], "score": [ 2 ], "text": [ "By playing out side the child my contract the bugs that suppress the human immune system in order to survive within us. Allergies prevalent in the last few generations are thought the result of the elimination of such bugs through improved antiba...
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[ [] ]
1l1vq3
why is the tick almost an universal symbol of something being correct, whilst a cross is indication of something being wrong? where did this practice originate from? and when?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1l1vq3/eli5_why_is_the_tick_almost_an_universal_symbol/
{ "a_id": [ "cbuxknu", "cbuxwa6", "cbuy8h6" ], "score": [ 4, 5, 2 ], "text": [ "In Sweden and Finland, a check mark means something is wrong, and an **R** means something is right.\n\n\nI just read up fast on it, and the origin seems to be from the Latin, in which a **V** means Tru...
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[]
[ [], [], [] ]
20vb76
why dont wood nails just slip out of the wood?
Theyre smooth and the wood is squeezing on them, why dont they just come out all the time?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/20vb76/eli5_why_dont_wood_nails_just_slip_out_of_the_wood/
{ "a_id": [ "cg72k1x" ], "score": [ 3 ], "text": [ "Friction is a powerful force. The wood that got pushed aside is squeezing right to where the nail is, but it's not squeezing upwards the way the nail came in so that friction is what holds it tight. For extra strength, some nails are coated with ...
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[ [] ]
akhma1
How prevalent was cannabis use by individuals in the US before it was declared illegal?
I know it was a common ingredient in many patent medicines but how common was smoking it and who was likely to be the typical user?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/akhma1/how_prevalent_was_cannabis_use_by_individuals_in/
{ "a_id": [ "ef71s0q" ], "score": [ 85 ], "text": [ "Marijuana use in the United States originated back to the 18th century, however, it's prevalence is dependent on the region and reason for use (i.e. for medicinal, recreational, or religious purposes).\n\nMost history is subjective, but a majori...
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[ [] ]
27aioz
What effect is responsible for water flowing in spirals in thin tubes? (example video included)
Hello askscience, a friend of mine posted a [video](_URL_0_) in which you can see water spiraling down a transparent plastic tube. In his description he assumes that gravity pull and temperature differences are responsible for this phenomenon. Is he on the right track there?
askscience
http://www.reddit.com/r/askscience/comments/27aioz/what_effect_is_responsible_for_water_flowing_in/
{ "a_id": [ "chyzsnx" ], "score": [ 8 ], "text": [ "Your friend is on the wrong track. Temperature has no real effect here. Obviously gravity is driving the whole flow since otherwise it wouldn't fall at all, but it affects everythingn equally so it's not very interesting.\n\nThe spiraling itself ...
[]
[ "https://www.youtube.com/watch?v=8gEmdm0fCgs" ]
[ [] ]
5ewijk
what's the deal with renewable energy?
I've noticed a sudden surge over the past several months towards renewable energy. Countries from all over the world suddenly seems to be moving away from coal and to resources like solar and wind. What's the reason for this? Has there been a recent event to spark this? Also, are there any predictions as to wether this...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5ewijk/eli5_whats_the_deal_with_renewable_energy/
{ "a_id": [ "dafqjkd" ], "score": [ 5 ], "text": [ "If by \"sudden\" you mean \"long-standing\" and by \"past several months\" you mean \"past several decades\", then you are absolutely right. \n\nYou're basically seeing a few big news stories breaking around the same time and equating it to somet...
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5voizm
why is water a good coolant and a good insulator of heat?
Seems kind of like an oxymoron to me.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5voizm/eli5_why_is_water_a_good_coolant_and_a_good/
{ "a_id": [ "de3mzak" ], "score": [ 2 ], "text": [ "It depends on if the water is moving or not.\n\nThere are three modes of heat transfer: conduction, convection, and radiation. Radiation is irrelevant in this example.\n\nConduction is heat transfer through the collision of molecules. Hot molecul...
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[ [] ]
3diyqu
why do movies still use the wilhelm scream? every time i hear this i get disappointed with the producer/regisseur, because it's just so dumb. is it a "running joke" kind of thing? if so: who on earth finds it something else than annoying and stupid?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3diyqu/eli5_why_do_movies_still_use_the_wilhelm_scream/
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3tayyj
why do guitarists often make that 'emotional guitar face' when pulling off a bend?
You know what I'm talking about, that face guitarists like Steve Vai and B. B. King make that look like they are having an intense orgasm. Hell I play guitar and even I do this and I don't know why. Bends (especially with good vibrato) just 'hit that spot'. Why do bends sound so 'emotional' to us?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3tayyj/eli5_why_do_guitarists_often_make_that_emotional/
{ "a_id": [ "cx4ldr0" ], "score": [ 11 ], "text": [ "As a personal experience I didn't think I did this \"overacting the bend\", and I considered Vai, Hendrix et al to be entitled to do whatever they wanted. However once when watching a video of me playing bass I found myself pulling a face in a ...
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cmvau3
Was Socrates ever considered a writer?
In Book II Section 1 line 32 of the Penguin Classics version of Epictetus Discourse and selected writings (page 80) it reads "But wasn't Socrates a writer, and a prolific one at that". This passage then has the associated note "Socrates is generally thought not to have written anything, so this passage is a puzzle". ...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/cmvau3/was_socrates_ever_considered_a_writer/
{ "a_id": [ "ew637ip" ], "score": [ 6 ], "text": [ "The note sort of answers your question. If there is no other attestation of Socrates' writing (there isn't), then nobody to our knowledge would have thought Socrates was a writer\n\nI don't know why Dobbins thinks this is such a mystery. For that...
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184qli
How have naval tactics/strategy/doctrine developed as the technology for ships has?
As a guy who loves the look of a battleship and sound of it firing (those damn flying propellers can't do anything to it I say! > :C), looking back all the way to triremes and that lot, what were the naval tactics then, and how did they progress? As far as I know it started basically as a land battle but with small 'i...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/184qli/how_have_naval_tacticsstrategydoctrine_developed/
{ "a_id": [ "c8bl80k", "c8by87u" ], "score": [ 2, 2 ], "text": [ "Well, for the early medieval period in Scandinavia, you've got a pretty odd collection of tactics, weapons, and strategies.\n\nDepending on the reason, a warship could be sent out alone or in a small flotilla. There are sto...
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[]
[ [], [ "http://en.wikipedia.org/wiki/File:Battle_of_Lepanto_1571.jpg" ] ]
50bil2
what is the structure of the entire internet?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/50bil2/eli5_what_is_the_structure_of_the_entire_internet/
{ "a_id": [ "d72njz2" ], "score": [ 5 ], "text": [ "The entire Internet is made of two things, endpoints and midpoints. Things like your computer and the reddit server are endpoints. Endpoints have an IP address assigned to them, and logically one connection to the network represented by that IP...
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[ [] ]
7z75uw
how does acid stay in a person’s stomach after death and not begin to immediately eat away at the body?
Not that your physical condition would be a concern at that point, but I wonder how the stomach doesn’t immediately loose the acid into its surroundings with everything shutting down.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7z75uw/eli5_how_does_acid_stay_in_a_persons_stomach/
{ "a_id": [ "dulslh8", "dult98f" ], "score": [ 7, 16 ], "text": [ "stomach lining is continually replenishing itself.\n\nand stomach acid is really not all that potent... Its super super diluted, when you throw up, you dont worry about dissolving your tongue, but you do get a little burni...
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[ [], [] ]
3wn253
why is a password managing program recommended for extra password security? doesn't that just give a hacker a single place to get all of my passwords at once if they get through?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3wn253/eli5_why_is_a_password_managing_program/
{ "a_id": [ "cxxfab5", "cxxfanj", "cxxfuh0", "cxxgj3m", "cxxiwwj", "cxxixts", "cxxkgcq", "cxxkhfe", "cxxko15", "cxxkwhm", "cxxlh15", "cxxnlnn", "cxxoahu", "cxxon5x", "cxxosou", "cxxp00t", "cxxp2we", "cxxpn4s", "cxxqnzi", "cxxrmv4", "c...
[]
[]
[ [], [], [], [], [], [], [], [ "https://www.youtube.com/watch?v=U4oB28ksiIo" ], [], [], [], [], [ "https://xkcd.com/1286/" ], [ "http://www.csmonitor.com/Technology/2015/0612/Google-and-others-try-to-get-rid-of-the-password.-But-why" ], [], [], [], [], [], [], ...
13v4l5
What does pure DNA look like?
If you had several grams or more of pure DNA, what kind of properties would that substance have? Solid? Liquid? Gooey? What color?
askscience
http://www.reddit.com/r/askscience/comments/13v4l5/what_does_pure_dna_look_like/
{ "a_id": [ "c77fggz" ], "score": [ 12 ], "text": [ "White salt. Boring white powder, really. It goes into solution in water, preciptates out into a filamentous tangle in alcohol.\n\nHere is the [MSDS](_URL_0_) although it doesn't say much..." ] }
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[]
[ [ "http://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=D1626&brand=SIGMA&PageToGoToURL=http%3A%2F%2Fwww.sigmaaldrich.com%2Fcatalog%2Fproduct%2FSIGMA%2FD1626%3Flang%3Den" ] ]
fwlrhf
gravitational braking. how can we use gravity to slow a spacecraft, when gravity is also used to increase the speed?
I was watching a show about the solar system, and they were talking about using Venus to slow a probe down. I thought planets were used only to increase velocity, so how can they ALSO be used to slow a craft down?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fwlrhf/eli5_gravitational_braking_how_can_we_use_gravity/
{ "a_id": [ "fmp0uis", "fmp123c", "fmpbwr8" ], "score": [ 5, 2, 2 ], "text": [ "Gravity assists work the same in both directions, you use the gravity of the planet to change the trajectory of the spacecraft.\n\nThe spacecraft always enters and leaves the planet's sphere of influenc...
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[]
[ [ "https://upload.wikimedia.org/wikipedia/commons/c/c9/GravAssis.gif" ], [], [] ]
1imyme
why do websites care how secure my password is?
If my account gets hacked how does that affect them??
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1imyme/eli5_why_do_websites_care_how_secure_my_password/
{ "a_id": [ "cb60h5a", "cb60hf6", "cb60kw8", "cb60r3u", "cb61tpc" ], "score": [ 3, 5, 2, 3, 2 ], "text": [ "The main reason is because it's extremely bad publicity. If you have two website that provide the same service, one gets hacked a lot, and the other doesn't, ...
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[ [], [], [], [], [] ]
mviyl
Does an egg get heavier, lighter, or stay the same weight while the baby chicken is growing inside?
the time period is from when the egg is completely formed to when it hatches.
askscience
http://www.reddit.com/r/askscience/comments/mviyl/does_an_egg_get_heavier_lighter_or_stay_the_same/
{ "a_id": [ "c346gt4", "c346gt4" ], "score": [ 21, 21 ], "text": [ "Chickens are animals, which means they need oxygen to live. The egg shell is gas permeable to allow for respiration to occur. Just like any other cell, the embryo is taking in oxygen and emitting carbon dioxide. This pr...
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[ [], [] ]
3ow830
What is the relation between photons and electromagnetic fields?
1. Does every collection of photons have a corresponding description as fields? 2. Does every electromagnetic field have a corresponding description as photons? 3. Are photons quasiparticles? (They aren't, right?)
askscience
https://www.reddit.com/r/askscience/comments/3ow830/what_is_the_relation_between_photons_and/
{ "a_id": [ "cw21p6s" ], "score": [ 3 ], "text": [ "Photons are the *quanta* of the electromagnetic field. This means that electromagnetic fields come in discrete 'chunks' called photons. But this is a quantum-mechanical description, not a classical one, so you shouldn't think of photons as partic...
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[ [] ]
3s5n5d
Has a military force in any major conflict ever *actually* been driven back into the sea?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/3s5n5d/has_a_military_force_in_any_major_conflict_ever/
{ "a_id": [ "cwuc7fu" ], "score": [ 2 ], "text": [ "The British Expeditionary force in France in WWII was driven into the sea by the advancing German army. They ended up being evacuated by a large flotilla of boats, great and small, from the Beaches of Dunkirk, rather than swimming, however." ]...
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2vg985
how to defrost a windshield properly.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2vg985/eli5how_to_defrost_a_windshield_properly/
{ "a_id": [ "cohcplz", "cohcqcp", "cohhc6o", "cohlt9g" ], "score": [ 2, 2, 2, 2 ], "text": [ "It depends on if theres a think layer of ice or just a bit of frost.\nI scrape the bulk of the ice off then pour luke warm water over my window with the wipers on to stop the water...
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[ [], [], [], [] ]
145coq
why is government debt a good thing?
Can someone explain to me why having a surplus is potentially dangerous? I think I've read that lack of debt means no one will buy Treasury bonds, but I'm not sure I understand.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/145coq/why_is_government_debt_a_good_thing/
{ "a_id": [ "c7a13dm" ], "score": [ 3 ], "text": [ "It's not that having a surplus is *inherently* dangerous. It's that having a deficit isn't that bad, and all of the easy ways to get a surplus might be.\n\nA lack of debt means that no one *can* buy Treasury bonds, because the government won't of...
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40zu5l
How accurate is the life that is depicted in the movie the Revenant?
So I just watched the movie and I felt like life back then was extremely harsh. I understand that the movie is about Leo suffering. But nonetheless it made me curious.
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/40zu5l/how_accurate_is_the_life_that_is_depicted_in_the/
{ "a_id": [ "cyyi5u6" ], "score": [ 2 ], "text": [ "There's always room for discussion, but perhaps this previous topic found using the search function will answer your inquiry.\n\n* [For those of you who have seen 'The Revenant', how accurately does it show the life of fur trappers and that perio...
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[ [ "https://www.reddit.com/r/AskHistorians/comments/40m4kn/for_those_of_you_who_have_seen_the_revenant_how/" ] ]
1gwhnl
what's making the moon bigger tomorrow then it is every other day?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1gwhnl/eli5_whats_making_the_moon_bigger_tomorrow_then/
{ "a_id": [ "caoif2b", "caoifon" ], "score": [ 3, 5 ], "text": [ "A combination of it being a full moon and it being as close to the Earth as possible in its cycle.\n\nThe moon isn't expanding or anything like that, it's just closer so it appears to be larger.", "The moon will be at it...
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[ [], [] ]
1mzv9w
why does some fat go "straight to my thighs" or elsewhere?
Just wondering, I'm 17, healthy and athletic, and never really had an explanation. I've always heard it but never asked what they meant.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1mzv9w/eli5_why_does_some_fat_go_straight_to_my_thighs/
{ "a_id": [ "cce5kv7" ], "score": [ 2 ], "text": [ "Basically, your body wants to store fat in certain places more than others.\nYour thighs don't really do much to effect movement, so they're preferred reserves. Same with the breast.\nYour neck, however, does a lot of moving and doesn't store fat...
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1zr4a9
how does the us terror alert system work?
Current terror level: [here](_URL_0_) How can the US government make a wild guess as to when terrorist attacks are more likely to occur? Does this have something to do with the NSA spying? Is it something like: "742 search results for 'let's do a terror attack on the US today!'". I can't imagine they would send any wa...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1zr4a9/eli5_how_does_the_us_terror_alert_system_work/
{ "a_id": [ "cfwh5bc" ], "score": [ 2 ], "text": [ "There is good empirical evidence suggesting the \"threat level\" is likely to be raised when the White House is getting bad press. Tail wagging the dog. I don't think anybody pays any attention to it anymore.\n\n_URL_0_" ] }
[]
[ "http://www.terror-alert.com/" ]
[ [ "http://arstechnica.com/civis/viewtopic.php?f=24&t=356251" ] ]
5riltr
how come almost every car manufacturer is owned by a bigger car company, for example ferrari and lamborghini are owned by fiat?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5riltr/eli5_how_come_almost_every_car_manufacturer_is/
{ "a_id": [ "dd7lt83" ], "score": [ 2 ], "text": [ "Cars are incredibly expensive to develop and ramp up production, and by acquiring other car makers it creates economies of scale by being able to share R & D, production facilities, etc. across more vehicles. Honda spends $X to develop a platform...
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2ah7sm
do kids who are born blind know they are missing a sense as they develop? or do they think it is normal because they know nothing else?
How do parents go about explaining that they are missing the sense of sight?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2ah7sm/eli5_do_kids_who_are_born_blind_know_they_are/
{ "a_id": [ "civ3d3g", "civ9cmt" ], "score": [ 3, 2 ], "text": [ "I can't speak for the blind, but there are documented cases of Deaf children, being born into Deaf families, that aren't aware of sound until they are introduced more broadly to the outside world.\n\nIn a book called Deaf In...
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[ [], [] ]
2nlpg3
in box, why isnt the weighting on the same day that the fight so fighters dont go through the whole dehydratation thing?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2nlpg3/eli5_in_box_why_isnt_the_weighting_on_the_same/
{ "a_id": [ "cmepb0f" ], "score": [ 4 ], "text": [ "The idea is to have the best fight possible.\n\nYou have a weigh in, to ensure both fighters are evenly matches.\n\nYou give them a few days to recover, so you don't have two dehydrated sluggards stinking up the ring.\n\nWithout the recovery time...
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1oatdp
Hoping for someone educated on 1800s to early 1900s to help date a picture
We have a picture of a man and a woman and are hoping for someone to help us date it. We think it's our grandfather but that would mean the picture is from the 1920s and it looks to early for that. It's around the Kentucky region as well so maybe that would have an affect on the answer. Thank you. Man: _URL_0_ Woman:...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1oatdp/hoping_for_someone_educated_on_1800s_to_early/
{ "a_id": [ "ccqb1mq" ], "score": [ 5 ], "text": [ "I'm really having a lot of trouble making out the clothes with the damage. :( I could buy it as 20s, I work with late 1800s-present photos from Nowhere, USA (archivist) and the fashion does tend to drag in the boonies. \n\nCan you tell me anythin...
[]
[ "http://imgur.com/3wkCrQe", "http://imgur.com/7RwbeX4" ]
[ [] ]
1jxci4
why do homegrown tomatoes taste better?
I know this is a stupid question, because we all know they taste better, but why? More citric acid? Help?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1jxci4/why_do_homegrown_tomatoes_taste_better/
{ "a_id": [ "cbj7405", "cbj7af4", "cbj7k8c", "cbj82tb", "cbj8aix", "cbj8q5a", "cbjb1fb" ], "score": [ 3, 11, 5, 4, 4, 32, 3 ], "text": [ "Here's an upvote to help this question get answered. I'm wondering why they taste better also.", "Most tomat...
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[ [], [], [], [], [], [], [] ]
5hgly2
how do know how to pronounce writings on the ancient clay tablets like kushim tablet?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5hgly2/eli5_how_do_know_how_to_pronounce_writings_on_the/
{ "a_id": [ "db01ocs", "db01smf", "db02gx7" ], "score": [ 2, 2, 2 ], "text": [ "Basically, we work backwards from what we know. We use languages that are based on the languages from these tablets and nearby regional languages. It's the same way we uncover new languages like Proto I...
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[]
[ [], [], [ "http://img.property-krakow.com/photos/3/34feee44fe7f65e01584d507044fc08d.jpg" ] ]
ecxh2a
what are the effects of weightlessness, as when in space, on the human body?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ecxh2a/eli5_what_are_the_effects_of_weightlessness_as/
{ "a_id": [ "fbectce" ], "score": [ 2 ], "text": [ "I’m no expert but I do know that for the first week or so you get really congested because your heart is still used to working against gravity to get blood to your head, so your head gets filled with lots of blood and other fluids until your body...
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[ [] ]
d3flpf
how are new types of universal technology like usb/usb-c created and who makes them?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/d3flpf/eli5_how_are_new_types_of_universal_technology/
{ "a_id": [ "f02da7c", "f02e8pk", "f02goqi", "f034q4i", "f03fwbb", "f03gf5c", "f03i2q7", "f03keey", "f03lwhw", "f03t9z2", "f03xbo0", "f04c4tz" ], "score": [ 4658, 62, 1010, 47, 15, 17, 6, 4, 3, 2, 4, 4 ], "text": [...
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[ [], [], [], [], [], [], [], [], [], [], [ "https://www.explainxkcd.com/wiki/index.php/927:\\_Standards", "https://www.explainxkcd.com/wiki/index.php/927:_Standards" ], [ "https://imgur.com/a/qrwrBXd" ] ]
8fa1en
what is the defense for second amendment of usa's constitution in context of other countries' much lower gun shooting rate.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8fa1en/eli5_what_is_the_defense_for_second_amendment_of/
{ "a_id": [ "dy1tf82", "dy1tkjb", "dy1tqir" ], "score": [ 5, 2, 3 ], "text": [ "Some Americans believe that having an armed populace is crucial to defending against tyranny. Imagine someone wanted to take over the country from inside, creating a dictatorship and removing citizens' ...
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[ [], [], [] ]
1fgvm6
Was the impact that caused the Chicxulub crater related to the separation of the continents?
I know they believe Pangea separated around 200-300 million year ago. As well the impact was around 66-80 million years ago. Are there any running theories with evidence that one may be related to the other? They appear to be moving away from Chicxulub as if it were an origin spot?
askscience
http://www.reddit.com/r/askscience/comments/1fgvm6/was_the_impact_that_caused_the_chicxulub_crater/
{ "a_id": [ "caa4r2z", "caa4smn", "caa51v8", "caa5gzb" ], "score": [ 3, 2, 6, 3 ], "text": [ "No, because they are separated by hundreds of millions of years and it simply wasn't big enough to accelerate the processes that cause continental drift by any significant amount."...
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[]
[ [], [ "http://albaleressie.wordpress.com/2012/02/14/plate-boundaries-sediment-and-the-chicxulub-crater/" ], [ "http://en.wikipedia.org/wiki/Paleomagnetism", "http://upload.wikimedia.org/wikipedia/commons/c/cb/Earth_seafloor_crust_age_poster.gif", "https://en.wikipedia.org/wiki/File:Snider-Pell...
2hes5v
why does it feel so nice to sleep when it's raining
Title
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2hes5v/eli5_why_does_it_feel_so_nice_to_sleep_when_its/
{ "a_id": [ "ckrzs3q", "ckrzsu0", "cks09y7", "cks0bpd", "cks0ltg", "cks1z4r", "cks2ywd" ], "score": [ 3, 28, 4, 7, 6, 3, 5 ], "text": [ "Some people find the sound of pattering of rain on the windows calming.", "Several reasons. Plus a bonus to p...
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[ [], [ "http://www.rainymood.com/" ], [], [ "http://en.wikipedia.org/wiki/White_noise" ], [], [], [] ]
27d1xh
how do i "see" my thoughts?
I've always wondered this because for us to see things, we need our eyes. But if that's the case, how can we "see" thoughts of places, people, etc.?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/27d1xh/eli5_how_do_i_see_my_thoughts/
{ "a_id": [ "chzn5iv" ], "score": [ 2 ], "text": [ "Mental images come from the brain's visuospatial sketchpad, which is itself a part of working memory. You're not literally seeing the imagined image, but you are recalling it from memory.\n\nHere's some interesting reading:\n\n_URL_1_\n\n_URL_2_...
[]
[]
[ [ "http://www.ncbi.nlm.nih.gov/pubmed/9184484", "http://www.simplypsychology.org/working%20memory.html", "http://psychology.wikia.com/wiki/Visuospatial_sketchpad" ] ]
c88yl6
Do diamonds degrade/break down naturally given enough time?
askscience
https://www.reddit.com/r/askscience/comments/c88yl6/do_diamonds_degradebreak_down_naturally_given/
{ "a_id": [ "esofmlw" ], "score": [ 2 ], "text": [ "Theoretically yes. But you would need millions or billions of years time. Practically no.\n\nDiamond is a very persistent metastable form of carbon. There is a significant kinetic energy barrier that the atoms must overcome in order to reach the ...
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[ [] ]
40ot31
why won't opec reduce their output and solve this whole crisis?
Uh, yeah, exactly as the title says...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/40ot31/eli5_why_wont_opec_reduce_their_output_and_solve/
{ "a_id": [ "cyvvra8", "cyvvuz1" ], "score": [ 2, 12 ], "text": [ "They'd end up giving up their total peace of the pie if they did. Plus currently they're putting small producers out of business therefore increasing their share at the same time. ", "The two theories that I believe hav...
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[ [], [] ]
58j0r5
how do people get addicted to things like sex, eating and shopping?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/58j0r5/eli5_how_do_people_get_addicted_to_things_like/
{ "a_id": [ "d90v8oo", "d9146i2", "d914smo" ], "score": [ 26, 2, 2 ], "text": [ "Any plesant stimulation can become an addiction.\n\nThere are (vaguely) two types of addiction that overlap strongly. \n\nThere's \"chemical dependency\", where you put things into your body and your b...
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[]
[ [], [], [] ]
3ly9l9
Where can I learn about India circa 750 AD
[deleted]
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/3ly9l9/where_can_i_learn_about_india_circa_750_ad/
{ "a_id": [ "cvaochh" ], "score": [ 8 ], "text": [ "The seminal indian history text to cover the period up to about 1300 AD is \n\n* Early India: From the Origins to AD 1300 by Romila Thapar\n\nIt is a good all round reference to classical india. However, it goes into details of Northern India a l...
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[ [] ]
dlelr7
there are a lot of oil fields around the world but why are oil fields in the arabic countries considered the best?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/dlelr7/eli5_there_are_a_lot_of_oil_fields_around_the/
{ "a_id": [ "f4pi37d", "f4pij8f", "f4pt28r" ], "score": [ 6, 5, 3 ], "text": [ "There is actually different qualities of crude oil based on sulur content and such but the Arabic oil fields are not considered the highest quality. However they are the biggest. This is because in the ...
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[ [], [], [] ]
knckx
Can flower species visited by bees significantly affect the flavor of their honey?
A friend and I recently went to a 'bug fair' and they provided various honey samples to try. Each sample reflected honey produced by bees that had visited certain flowers. The flavors were wildly different. Some were only subtle hints to the parent flower while others were completely obvious (e.g., the orange flower h...
askscience
http://www.reddit.com/r/askscience/comments/knckx/can_flower_species_visited_by_bees_significantly/
{ "a_id": [ "c2lmwm2", "c2lmyrj", "c2lmznh", "c2ln3qn", "c2lnkyb", "c2lo05m", "c2lochl", "c2loi4c", "c2loioo", "c2lokj9", "c2louba", "c2lowsj", "c2loy3l", "c2lp5sn", "c2lmwm2", "c2lmyrj", "c2lmznh", "c2ln3qn", "c2lnkyb", "c2lo05m", "c...
[]
[]
[ [], [], [], [ "http://en.wikipedia.org/wiki/Honey#Classification" ], [], [], [], [], [ "http://www.google.com/search?gcx=w&q=french+lavender+fields&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&hl=en&tab=wi&biw=1280&bih=866" ], [], [ "http://en.wik...
2nwlko
why is sitting for hours during a road trip so uncomfortable, but sitting at my home or even work for the same time period isn't noticeably uncomfortable?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2nwlko/eli5_why_is_sitting_for_hours_during_a_road_trip/
{ "a_id": [ "cmhl2h4", "cmhl7j2", "cmhptbf", "cmhqy5r", "cmhqywo", "cmhs4x3", "cmht34m", "cmi33aq" ], "score": [ 85, 18, 5, 10, 5, 2, 2, 2 ], "text": [ "You don't have anything to distract you during the road trip and must actively look ahead...
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[ [], [], [], [], [], [], [], [] ]
1ceoh3
why would a commodity cost significantly more than its production cost?
I just read an [article](_URL_0_) saying that it costs $1200 an ounce to produce gold, but it's been trading at $1400 to $1900 an ounce in the recent years. How is this possible without a monopoly? Why would a rational agent invest in gold at these prices knowing that any demand can be satisfied at $1201 in the long t...
askscience
http://www.reddit.com/r/askscience/comments/1ceoh3/why_would_a_commodity_cost_significantly_more/
{ "a_id": [ "c9ft97a", "c9fwl59", "c9g49ul" ], "score": [ 2, 3, 3 ], "text": [ "Point of clarification: isn't \"$1201 in the long term\" an assumption? \n\nAlso, the cost of producing gold is not static. As existing ore is mined out, new deposits must be found and made available fo...
[]
[ "http://www.cnbc.com/id/100640665" ]
[ [], [], [] ]
8mfozt
What was Italy called before it was referred to as Italy?
Sorry if this is a silly question. Italy comes from the name of a region near Calabria and was expanded by the Romans to refer to the whole peninsula up to the Alps, but what was the entire peninsula called before that? I've heard Hesperia/Esperia, but can't find any source to prove it. Thanks for any answers.
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/8mfozt/what_was_italy_called_before_it_was_referred_to/
{ "a_id": [ "dznfura" ], "score": [ 18 ], "text": [ "Italy as a definite geographic space first occurs in Herodotus, actually, at [1.24](_URL_0_). For Herodotus, if you map out the places he refers to as Italy, it's pretty clear the term refers to just the Greek-settled coast around the Gulf of T...
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[]
[ [ "http://www.perseus.tufts.edu/hopper/text?doc=Perseus:abo:tlg,0016,001:1:24&lang=original" ] ]
2xiqjo
why is professional wrestling popular with audiences when it is pre-arranged, scripted 'acting'?
Impressive feats of strength admittedly, but the acting is lame at best with results pre-determined. Do some of the audience actually think it is real fighting? Or does it appeal to some visceral human instinct I lack?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2xiqjo/eli5_why_is_professional_wrestling_popular_with/
{ "a_id": [ "cp0fwhz", "cp0fxwy", "cp0ga0t", "cp0getg" ], "score": [ 3, 13, 2, 3 ], "text": [ "Yes, some people think it is real. Some people know it is fake but are able to pretend it is real anyway. \n\nMost people like it because it's a soap opera.", "When you go to...
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[]
[ [], [], [], [] ]
fiuy8x
how do medial professionals decide treatment for a comatose person w/o family?
Say someone (in the U.S.) without any family at all winds up at a hospital and goes comatose, needing to be on life support. Would they be on life support indefinitely or would anyone have the authority to ‘pull the plug’ so to speak? Sorry it’s kind of a dark question but these are the kinds of things keeping me up at...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fiuy8x/eli5_how_do_medial_professionals_decide_treatment/
{ "a_id": [ "fkjdopn", "fkjldif", "fkjps6z", "fkjq999", "fkjqb15", "fkk77vi" ], "score": [ 164, 19, 12, 5, 10, 5 ], "text": [ "Hospitals have a medical ethics committee that would come in and make that decision. Pulling the plug, essentially removing the pat...
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[ [], [], [], [], [], [] ]
14500s
what those black lines on the road are.
EDIT: Sorry about the confusion, I meant these black lines. _URL_0_
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/14500s/eli5_what_those_black_lines_on_the_road_are/
{ "a_id": [ "c79wukm", "c79yhi8", "c7a07ie", "c7a0g5t" ], "score": [ 3, 2, 3, 5 ], "text": [ "Can you be more specific? Where do you normally see these black lines? How long are they? Are they in any sort of pattern?", "[*These*](_URL_0_) black lines?", "It's wha...
[]
[ "http://2.bp.blogspot.com/_tCiY3quJAto/TCUFOkykxoI/AAAAAAAACaA/S_c1sqSlRuI/s1600/dbl_dcokeroadkill250610a.jpg" ]
[ [], [ "http://www.californiastreets.org/blog/wp-content/uploads/2010/05/arroyo_seco_parkway_from_marmion_way.jpg?w=300" ], [ "http://en.wikipedia.org/wiki/Inductive_loop" ], [] ]
7fluoh
How did labor begin to organize? How long did it take for unions to earn legal protection, and how did they overcome resistance from management? Did they face widespread opposition? How quickly did they spread internationally?
[deleted]
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/7fluoh/how_did_labor_begin_to_organize_how_long_did_it/
{ "a_id": [ "dqd9zul" ], "score": [ 2 ], "text": [ "Can you please frame the question to a more specific country, it is hard to answer generalities." ] }
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[]
[ [] ]
op6mw
If I was in a vehicle travelling the speed of a bullet...
And the vehicle was for instance 80 meters length and it could include passengers that were able to walk around like on a plane (instead of being glued to their seat because of the speed). If I would stand at the back of the vehicle and facing the cockpit would fire a bullet that would cross the 80 meters of the vehicl...
askscience
http://www.reddit.com/r/askscience/comments/op6mw/if_i_was_in_a_vehicle_travelling_the_speed_of_a/
{ "a_id": [ "c3ixy0g", "c3ixyfw", "c3ixz7u", "c3iyj4u", "c3iyndw" ], "score": [ 7, 2, 6, 4, 3 ], "text": [ "It's all relative.\n\nWhen you talk about a vehicle traveling the speed of a bullet, (let's say 1500 feet per second, or a bit over 1000 mph,) you're talking ...
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[ [], [ "HowStuffWorks.com" ], [], [], [] ]
qyjl6
Do solids and liquids have a sound barrier? If so, what happens when you break it?
is it the same thing as just striking the material in question? would a sonic boom in steel, for example, mean it would explode into shards?
askscience
http://www.reddit.com/r/askscience/comments/qyjl6/do_solids_and_liquids_have_a_sound_barrier_if_so/
{ "a_id": [ "c41i1ov", "c41i477", "c41ifaj", "c41j51j", "c41jnnm", "c41jpag", "c41juj6", "c41kfg6", "c41kjl3", "c41ne4p", "c41ngdd" ], "score": [ 563, 17, 4, 25, 2, 38, 3, 2, 2, 3, 2 ], "text": [ "To generate a sonic b...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Speed_of_sound#Basic_formula", "http://www.engineeringtoolbox.com/sound-speed-solids-d_713.html" ], [], [ "http://en.wikipedia.org/wiki/Cherenkov_radiation" ], [], [ "http://en.wikipedia.org/wiki/Supercavitation" ], [], [ "http://en.wikiped...
16t8uw
death by decompression/depressurization
more importantly: explosive decompression
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/16t8uw/eli5_death_by_decompressiondepressurization/
{ "a_id": [ "c7z4t77" ], "score": [ 2 ], "text": [ "If you open a bottle of carbonated beverage, then you see bubble of gas \"magically\" appear. Those bubbles are gas which was dissolved under pressure in the liquid.\n\nThe same thing happens with the blood of divers: Under water the pressure ris...
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[ [] ]
1m6hu5
why does cigarette smell cling to your clothes when you smoke, but poop smell doesn't when you poop?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1m6hu5/eli5_why_does_cigarette_smell_cling_to_your/
{ "a_id": [ "cc67mpg" ], "score": [ 3 ], "text": [ "Because smoke particles are very small. Try burning a turd in your closet." ] }
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[ [] ]
k902o
the major differences between german, italian, japanese, american, ... cars.
I've been shopping around for a car, and it seems like every car review I've read assumes some prior knowledge about them - understandable. Which means many reviews include something like, "handles like a German car with the something whatever of an Italian car." This means nothing to me.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/k902o/eli5_the_major_differences_between_german_italian/
{ "a_id": [ "c2ie8vo", "c2iefo6", "c2igjce", "c2ie8vo", "c2iefo6", "c2igjce" ], "score": [ 2, 4, 12, 2, 4, 12 ], "text": [ "I've wondered the same thing before. I'm 20 and male, and I frequently feel like I'm the only person that doesn't know what car brands...
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[]
[ [], [], [ "http://www.youtube.com/watch?v=Z08jcWoM7ak", "http://www.youtube.com/watch?v=rZseBpPufLI", "http://www.youtube.com/watch?v=biv09yyM7tQ", "http://www.youtube.com/watch?v=aQ8xDia5RNY" ], [], [], [ "http://www.youtube.com/watch?v=Z08jcWoM7ak", "http://www.youtube.com/watc...
1oafpk
What allows our bodies to kill off viruses? Why is the time it takes so consistent? (E.g a cold lasts about 7 days, regardless of what you take)
askscience
http://www.reddit.com/r/askscience/comments/1oafpk/what_allows_our_bodies_to_kill_off_viruses_why_is/
{ "a_id": [ "ccqbelj", "ccqbvfi" ], "score": [ 3, 3 ], "text": [ "Most people don't realize this, but it isn't the virus itself that causes the symptoms you're experiencing, but rather your body's immune system. This isn't exactly a rigorous scientific source, but this [NY Times Op-Ed pie...
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[]
[ [ "http://www.nytimes.com/2010/10/05/opinion/05ackerman.html?_r=2&nl=opinion&emc=tya1&amp" ], [] ]
2rv2ou
Was there a historical King Arthur? And if 'yes', was his name Arthur or something else?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2rv2ou/was_there_a_historical_king_arthur_and_if_yes_was/
{ "a_id": [ "cnjlat5", "cnk7w13", "cnkdo54" ], "score": [ 211, 3, 8 ], "text": [ "A very well respected early medieval historian Guy Halsall wrote an excellent book that you should run out RIGHT NOW and purchase, called \"Worlds of Arthur.\"\n\nThe short and historical answer is, \...
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[ [], [], [] ]
8sbbgr
What are the chances that the modern royal family is actually related to William the Conquer?
I learn from CGPgrey video that the Royal family is the direct descendant from William the Conqueror which would make it a recorded line stretch back a thousand year which is pretty impressive for most of us who know our allegedly direct ancestors at best 3 or 4 generations back. I say allegedly because with modern DNA...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/8sbbgr/what_are_the_chances_that_the_modern_royal_family/
{ "a_id": [ "e0ydjtt" ], "score": [ 10 ], "text": [ "Check out /u/dmahr's answer to a related question: [how did royals know if their children were really their children](_URL_0_)\n\nAs his answer shows, the surprise discovery of Richard III's body yielded DNA tests with a that provided strong gen...
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[]
[ [ "https://www.reddit.com/r/AskHistorians/comments/8kxqfa/how_did_royals_rulers_know_if_their_children_were/dzbxqfg/" ] ]
1m2j3m
Why is Julius Caesar's 'The Civil War' written in third person?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1m2j3m/why_is_julius_caesars_the_civil_war_written_in/
{ "a_id": [ "cc55xn5", "cc5aqb8" ], "score": [ 25, 6 ], "text": [ "Caesar's *Commentaries* were literally written as political propoganda for the people back in Rome. What he would do is he would send them back in \"episode\" form (think like a miniseries!) and they would be read out to th...
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[ [], [] ]
1iav0f
Can anybody point me toward sources concerning how innovations in transportation have influenced culture throughout history?
For example, the automobile paved the way (no pun intended) for modern suburbia, and so shaped the fundamental way of life for millions of people today. Where might I look for examples of this sort of shift occurring prior to the 20th century?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1iav0f/can_anybody_point_me_toward_sources_concerning/
{ "a_id": [ "cb2o5mn", "cb2qxub" ], "score": [ 2, 2 ], "text": [ "Yes Railway allowed for national travel and trade to be easier and affordable allowing for the industrial booms that came in its wake\n\nThe rise of naval travel also opened up 'new worlds' and allowed for the trade of toba...
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[]
[ [], [] ]
4g0w5y
Have nonviolent protests ever been effective in the USA?
[deleted]
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/4g0w5y/have_nonviolent_protests_ever_been_effective_in/
{ "a_id": [ "d2dqhg2" ], "score": [ 2 ], "text": [ "Yes. Eisenhower changed his stance on atomic weapons incredibly quickly after a quote that in the context of today makes him into a different beast from a different time.\n\nHere is his quote on whether small atomic weapons would be used if war b...
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[ [ "https://www.nps.gov/features/eise/jrranger/quotes2.htm" ] ]
46cj5q
why hasn't the middle-east grown in the same direction and the same speed as europe and north-america?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/46cj5q/eli5_why_hasnt_the_middleeast_grown_in_the_same/
{ "a_id": [ "d041bum" ], "score": [ 3 ], "text": [ "Well, the Ottoman Empire collapsed at the end of World War I, which was right at the start of the technological advancement. Following the war, the area was divided up among allied nations that administered them differently. During that time, s...
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[ [] ]
70iq3g
Slovaks, medieval Hungary, Czechoslovakia. Looking for books
Hello AskHistorians, I've checked your excellent book list but sadly it doesn't seem to have anything dealing with my corner of the world. I am looking for good books on history of Slovaks and also Kingdom of Hungary. Where Hungary is concerned I primarily want its history during medieval era. Mostly I am interested ...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/70iq3g/slovaks_medieval_hungary_czechoslovakia_looking/
{ "a_id": [ "dn3jrll" ], "score": [ 2 ], "text": [ "I can't help off the top of my head with the first two requests, but as for the Czech Republic, Derek L. Sayer's *The Coasts of Bohemia* is a very interesting and well-written history of the country from its conception and into, I believe, the fi...
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[ [] ]
7vkvwj
how does money lose its value/worth over time?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7vkvwj/eli5_how_does_money_lose_its_valueworth_over_time/
{ "a_id": [ "dtt43py" ], "score": [ 2 ], "text": [ "That's singularly due to the Federal Reserve whose actually destroyed [98%](_URL_0_) of the value of the currency. When the supply of a product goes up, the price of the product will go down. If you and I both have a piece of candy and then all o...
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[ [ "http://www.politifact.com/virginia/statements/2010/nov/24/virginia-tea-party-patriots/virginia-tea-party-says-dollar-has-lost-98-percent/", "https://mises.org/system/tdf/Mystery%20of%20Banking_2.pdf?file=1&type=document", "https://imgur.com/a/SjUQM" ] ]
9nyrkl
What modern rum would be most like the rum pirates drank during the golden age?
[deleted]
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/9nyrkl/what_modern_rum_would_be_most_like_the_rum/
{ "a_id": [ "e7qeqam", "e7s0zfl", "e7s62sh" ], "score": [ 93, 4, 52 ], "text": [ "You might find [this answer](_URL_0_) by [u/WARitter](_URL_1_) helpful. In particular:\n\n > 18th century rum was also cask strength - it would be diluted when it was consumed, if diluted at all. So...
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[ [ "https://www.reddit.com/r/AskHistorians/comments/6drvox/modern_rum_vs_pirate_age_rum/di5eq1p", "https://www.reddit.com/user/WARitter" ], [], [] ]
1xkry3
why aren't woman downhill skiers as fast as men?
Why aren't woman downhill skiers as fast or faster than men? I would think they'd go faster because they are smaller but the men more than double their speeds going downhill. Is there more to going downhill than just sliding down it really fast? Does it require a lot of strength? I don't know a lot about downhill skiin...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1xkry3/eli5_why_arent_woman_downhill_skiers_as_fast_as/
{ "a_id": [ "cfc8rni" ], "score": [ 28 ], "text": [ "If you watch at the beginning of a run, you'll see that the skier always skates a bit out of the gate. A few really aggressive pushes against the snow to get up to speed. That speed will be faster if the racer is stronger, which is typically tru...
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[ [] ]
kyki2
the politics in the star wars prequels
Just what the bloody hell are they talking about? The republic, the senate, the council, trade federation etc what the hell is going on exactly?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/kyki2/eli5_the_politics_in_the_star_wars_prequels/
{ "a_id": [ "c2obokk", "c2ocbqg", "c2ocfuk", "c2ock2i", "c2ocvwc", "c2obokk", "c2ocbqg", "c2ocfuk", "c2ock2i", "c2ocvwc" ], "score": [ 3, 19, 4, 376, 4, 3, 19, 4, 376, 4 ], "text": [ "The true answer is that no one knows. How...
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[]
[ [ "http://redlettermedia.com/plinkett/star-wars/star-wars-episode-1-the-phantom-menace/" ], [], [], [], [ "http://redlettermedia.com/plinkett/star-wars/star-wars-episode-1-the-phantom-menace/" ], [ "http://redlettermedia.com/plinkett/star-wars/star-wars-episode-1-the-phantom-menace/" ], ...
4jhtrx
what caused humans to outsmart other primates?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4jhtrx/eli5_what_caused_humans_to_outsmart_other_primates/
{ "a_id": [ "d36oufs", "d36s1u6", "d36u7gl" ], "score": [ 7, 3, 4 ], "text": [ "Well, humans developed symbolic thought- or the ability to attach meaning to symbols (sounds, gestures, pictures) and communicate complex ideas using those symbols. They used this to develop language, a...
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[ [], [], [] ]
2pucna
How does a language "die?"
Like Latin. How did the language become completely, 100% unspoken? Does this happen to other languages?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2pucna/how_does_a_language_die/
{ "a_id": [ "cn06hxi", "cn08uug", "cn0f6f9", "cn0gmqd", "cn0th8z" ], "score": [ 381, 45, 5, 5, 3 ], "text": [ "The shortest questions are the hardest ones to answer, eh?\n\nA language becomes *dormant* when it is no longer spoken as the first or primary language of ...
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[]
[ [ "http://www.uaf.edu/anlc/languages/stats/", "http://www.ethnologue.com/about/language-status", "http://articles.latimes.com/1999/may/23/news/mn-40196/2", "http://www.uafanlc.arsc.edu/data/Online/G961K2001/G961K2001.pdf", "http://www.uaf.edu/anlc/languages/" ], [ "http://medieval.ucdavi...
agom6o
the gillette commercial controversy.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/agom6o/eli5_the_gillette_commercial_controversy/
{ "a_id": [ "ee7rh15" ], "score": [ 4 ], "text": [ "The real controversy should be that people still buy Gillette products even though they offer a poor quality shave at a ridiculously high price. " ] }
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[ [] ]
55sd7d
please explain how cruise ships are able to stay upright and not tip over in high winds, when many other smaller boats experience great sway.
keeping center of gravity low is important to shipbuilding so how do these super cruise ships stay upright in high winds when they are 5+ stories tall above the water?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/55sd7d/eli5please_explain_how_cruise_ships_are_able_to/
{ "a_id": [ "d8d9ugn", "d8d9vl2", "d8dde42", "d8de67a", "d8deean", "d8e5w8z", "d8ecn15" ], "score": [ 26, 15, 13, 5, 4, 2, 3 ], "text": [ "Tons of weight concentrated in the lower portion. The upper decks consist of far more empty space than the lowe...
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[ [], [], [], [], [], [], [] ]
1yw3ft
what gives mass energy and charge to subatomic particles?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1yw3ft/what_gives_mass_energy_and_charge_to_subatomic/
{ "a_id": [ "cfoaqh3", "cfoggmh" ], "score": [ 67, 2 ], "text": [ "Energy is the easiest to explain. Energy isn't something inherent to a particle: it depends on the state that the particle is in. Stuff like its mass, how fast it's going, what forces it's subject to.\n\nTo a particle physi...
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[]
[ [], [ "http://royalsociety.org/events/2014/asymmetric-Universe/" ] ]
12404v
why can politicians talk about religion?
If there is supposed to be a separation of church and state in the United States, why can politicians still talk about religion and enforce rules set forth by said religions?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/12404v/why_can_politicians_talk_about_religion/
{ "a_id": [ "c6rybtp", "c6rz7tv" ], "score": [ 9, 2 ], "text": [ "The seperation of church and state is a nice idea but what is really said in the constitution is no laws will be made to promote or hinder any religion. This means legally the state cannot sponsor or restrict any religion bu...
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[ [], [] ]
4r9tgs
what are the people involved in "cs:go gambling" betting on?
It seems some are gambling on skins for items? Can someone explain?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4r9tgs/eli5_what_are_the_people_involved_in_csgo/
{ "a_id": [ "d4ze698", "d4ze6yd", "d4zf86d" ], "score": [ 2, 8, 5 ], "text": [ "So Counterstrike: Global Offensive is a FPS. However, it is extremely competitive. It is similar to LoL, they have national competitions with prize pools around 1 million dollars. 10 million people or m...
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[ [], [], [] ]
n4sak
Is there any video footage from the surface of Mars, or from orbit around another planet?
We can take such lovely photographs of alien worlds, as evidenced by today's mineral vein discovery. Have any of these probes ever sent back any video, or is it just pictures? If we haven't taken videos, why not?
askscience
http://www.reddit.com/r/askscience/comments/n4sak/is_there_any_video_footage_from_the_surface_of/
{ "a_id": [ "c368d1b", "c368qiu", "c368qym", "c368d1b", "c368qiu", "c368qym" ], "score": [ 2, 3, 3, 2, 3, 3 ], "text": [ "So I coulden't just find a gif or a short video of just the phenomenon: But here is a [video of the hexagon on saturn](_URL_0_).\n\nSo t...
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[ [ "http://www.youtube.com/watch?v=qzL194jiTyY" ], [ "http://photojournal.jpl.nasa.gov/catalog/PIA03450", "http://www.nasa.gov/centers/goddard/images/content/388625main_Jupiter_Approach.gif", "http://saturn.jpl.nasa.gov/video/videodetails/?videoID=227", "http://dawn.jpl.nasa.gov/multimedia/ve...