q_id
stringlengths
5
6
title
stringlengths
3
301
selftext
stringlengths
0
39.2k
document
stringclasses
1 value
subreddit
stringclasses
3 values
url
stringlengths
4
132
answers
dict
title_urls
list
selftext_urls
list
answers_urls
list
2f6qap
Did the USSR have any kind of attempt to appeal to the youth similar to how Captain America got big in the US?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2f6qap/did_the_ussr_have_any_kind_of_attempt_to_appeal/
{ "a_id": [ "ck6hy5i", "ck6k4pf", "ck6krbz", "ck6ljlu", "ck6qtlt", "ck6wcw7", "ck76gt6", "ck7a63t" ], "score": [ 655, 22, 133, 8, 16, 3, 3, 3 ], "text": [ "The kinds of figures that were lauded by Soviet propaganda were \"everymen\" who, beca...
[]
[]
[ [], [ "http://www.reddit.com/r/AskHistorians/comments/11155q/did_the_ussr_and_other_countries_have_a_superman/", "http://www.reddit.com/r/AskHistorians/comments/188xka/during_the_cold_war_did_the_soviets_have_their/" ], [ "https://www.youtube.com/watch?v=jETJt_zbnKk", "http://www.youtube.com/w...
a7e6g2
why animals naturally know how and when to mate, where as we are educated or we learn about it from external sources?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/a7e6g2/eli5why_animals_naturally_know_how_and_when_to/
{ "a_id": [ "ec29va8", "ec2b1sy", "ec2egrw", "ec2howq" ], "score": [ 7, 32, 5, 2 ], "text": [ "We do know. It's just that our society has rules that deviate from natural instincts. That's what you get taught.", "We don't really get taught about the mechanics of sex in o...
[]
[]
[ [], [], [], [] ]
4h1g0r
does your blood temperature actually increase when you get mad or hot(old people saying "makes my blood boil")?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4h1g0r/eli5_does_your_blood_temperature_actually/
{ "a_id": [ "d2mksu4", "d2mkvum" ], "score": [ 5, 5 ], "text": [ "A lot of times when you get angry it's because you feel a psychological threat, like the threat of embarrassment or losing status somehow. Your body can go into 'fight or flight' mode, which increases your adrenaline and yo...
[]
[]
[ [], [] ]
2ojtku
The Byzantines favored blinding to remove a potential rival from politics. How did the act of blinding take place? What was the favored method for blinding someone? What tools were used?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2ojtku/the_byzantines_favored_blinding_to_remove_a/
{ "a_id": [ "cmnwsp1" ], "score": [ 92 ], "text": [ "Two points to make here; Mutilation was a particularly gruesome tool used by the Byzantine (and lots of others), and they used blinding to far greater scope and effect than purely as a way to eliminate potential rivals.\n\nThere is an inherent s...
[]
[]
[ [ "http://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Blinding_of_Leo_Phokas.jpg/300px-Blinding_of_Leo_Phokas.jpg" ] ]
20x0ka
How big of a part did the navy play during Ancient Rome? What were some of the largest and/or most important naval battles?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/20x0ka/how_big_of_a_part_did_the_navy_play_during/
{ "a_id": [ "cg7q6v0", "cg7v1u8" ], "score": [ 2, 2 ], "text": [ "Rome's navy was actually very important when it had to undergo the Punic Wars against Carthage. Being that Carthage was on the other side of the Mediterranean, sea dominance was critical at the time. Since Hannibal had to ma...
[]
[]
[ [], [] ]
96721i
When does the body produce Melanin?
When is the body producing melanin or for the matter is there even a specific time for that? Does Melanin production occur only at a specific time like for example how some body functions only occur while sleeping or is it a process that activates as soon as sunlight hits the skin? Sorry I know this an kinda an uncommo...
askscience
https://www.reddit.com/r/askscience/comments/96721i/when_does_the_body_produce_melanin/
{ "a_id": [ "e3yk5ri", "e3ykrka" ], "score": [ 15, 5 ], "text": [ "Let's limit the question to production and release of eumelanin (=\"true melanin\") in human skin; melanin can be found in other odd places and in different forms.\n\nEumelanin production is stimulated by UV-B-caused DNA d...
[]
[]
[ [], [] ]
db9jq9
why our vision appears to be "green" after closing the eyes for some time?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/db9jq9/eli5_why_our_vision_appears_to_be_green_after/
{ "a_id": [ "f1zetj4" ], "score": [ 7 ], "text": [ "Your eyes when closed still allow some light which is coming through your eyelids. This gives it a reddish hue. When eyes are exposed to this color this much then they adjust which results in lack of red when you open your eyes." ] }
[]
[]
[ [] ]
a2dblj
why can’t a patient’s blood be reused in cases of internal bleeding?
Let’s assume someone has internal bleeding - maybe a ruptured spleen or some such. Could the internal blood that’s escaping be collected, and then used to “top up” the patient’s blood supply when the cause of the bleed is corrected?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/a2dblj/eli5_why_cant_a_patients_blood_be_reused_in_cases/
{ "a_id": [ "eax6aov", "eax7jqv" ], "score": [ 45, 5 ], "text": [ "Yes. It's called a cell saver. The blood is suctioned out of the surgical field; washed, filtered, and centrifuged; then transfused back to the patient. It takes some time to set up, but it can save you using a few units of...
[]
[]
[ [], [] ]
bqdt20
why do aa and aaa batteries not shock us when touching opposite ends with wet fingers, but licking a 9 volt battery does?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bqdt20/eli5_why_do_aa_and_aaa_batteries_not_shock_us/
{ "a_id": [ "eo3l69a", "eo3lifs", "eo3qbzc" ], "score": [ 68, 3, 11 ], "text": [ "First of all, your saliva is much more conductive than your skin.\n\nSecondly, 9 volts is times stronger than 1.5 volts.", "The technical answer:\nYour skin poses a much higer resistance than your...
[]
[]
[ [], [], [] ]
7s0um6
why does antipsychotic medication mess with motor function and cause the body to tense up?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7s0um6/eli5_why_does_antipsychotic_medication_mess_with/
{ "a_id": [ "dt12ly1", "dt1pzhl" ], "score": [ 3, 3 ], "text": [ "Super simplified laymans knowledge version: psych drugs affect various neurotransmitters in the brain (dopamine, serotonin, norepinephrine, etc), these neurotransmitters are multipurpose and some regulate motor function in a...
[]
[]
[ [], [] ]
3nhz3x
Why did Benjamin Franklin not discuss the Revolution in his autobiography?
I know part 1 was written before the Revolution takes place, but as I was reading parts 2-4 he didn't seem to go into detail about his role in it? Why does he do this?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/3nhz3x/why_did_benjamin_franklin_not_discuss_the/
{ "a_id": [ "cvojty9" ], "score": [ 2 ], "text": [ "The answer for this is fairly simply, apologies therefore if this seems rather sparse for a top-level post. \n\nFranklin does not discuss the Revolution, because he died before finishing the autobiography. " ] }
[]
[]
[ [] ]
863bug
why does the education system favours memory retention over imagination?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/863bug/eli5_why_does_the_education_system_favours_memory/
{ "a_id": [ "dw201sl" ], "score": [ 2 ], "text": [ "Because most of us are not going to be in a situation where we need crazy outside the box imaginations. Most of us are going to have jobs where we’ll need the knowledge and competence in that particular field, and would only need a limited imagin...
[]
[]
[ [] ]
6tznf6
Does uranium actually glow green as it's often depicted? If so, why?
askscience
https://www.reddit.com/r/askscience/comments/6tznf6/does_uranium_actually_glow_green_as_its_often/
{ "a_id": [ "dlp6ta8", "dlp6xmd" ], "score": [ 13, 4 ], "text": [ "[Uranium glass glows green under UV](_URL_0_) and was pretty popular in the mid-20th century. However it's not the radioactivity making things glow, it's a regular atomic transition. Radium was also used as a glowing paint ...
[]
[]
[ [ "http://klotza.blogspot.com/2016/07/do-radioactive-things-glow.html" ], [ "https://en.wikipedia.org/wiki/Radioluminescence", "https://en.wikipedia.org/wiki/Tritium_radioluminescence" ] ]
1sbifl
when you're reviewing your research, how the hell do you find the null hypothesis?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1sbifl/when_youre_reviewing_your_research_how_the_hell/
{ "a_id": [ "cdvuf8b" ], "score": [ 2 ], "text": [ "The nullhypothesis is a statistical question. \n\nIt is the question you ask in order to disprove your hypothesis.\n\nIf you cannot disprove it with the data you collect, then the hypothesis must be correct.\n\n(Well, most likely correct.)\n\n" ...
[]
[]
[ [] ]
12i2p2
What happens to satellites and other objects orbiting our planet when they are outdated or no longer work?
askscience
http://www.reddit.com/r/askscience/comments/12i2p2/what_happens_to_satellites_and_other_objects/
{ "a_id": [ "c6v8wb3", "c6v91vw" ], "score": [ 2, 3 ], "text": [ "They become so called space junk or [space debris](_URL_0_).\n\nThe ISS had a most recent event, where they had to dodge an oild satelite [Source](_URL_1_)", "Ideally, low earth orbit satellites would be de-orbited inten...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Space_debris", "http://www.examiner.com/article/international-space-station-may-have-to-dodge-debris-from-old-russian-satellite" ], [ "http://en.wikipedia.org/wiki/Graveyard_orbit" ] ]
b5rbvf
Is a child born via egg donor related to the birth giver? How much so?
askscience
https://www.reddit.com/r/askscience/comments/b5rbvf/is_a_child_born_via_egg_donor_related_to_the/
{ "a_id": [ "ejhpin7", "ejhqymr" ], "score": [ 3, 2 ], "text": [ "If you mean does the surrogate influence the foetus it grows in any way then yes. While not all that common, it is possible for the foetus to take on the mitochondrial DNA of the surrogate mother, whilst still retain the egg...
[]
[]
[ [ "https://academic.oup.com/humupd/article/12/4/401/2182299" ], [ "https://en.wikipedia.org/wiki/Maternal_effect" ] ]
c0jgdl
what does "support/maintenance" for software mean? what is part of it, why do companies pay money for it instead of foregoing it to save money?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/c0jgdl/eli5_what_does_supportmaintenance_for_software/
{ "a_id": [ "er50uxs", "er5193j", "er51ro5", "er59bha", "er59lfe", "er5atuj", "er5o5yg", "er5vxue" ], "score": [ 5, 2, 2, 2, 2, 2, 2, 2 ], "text": [ "It's like buying a really nice warranty for your phone.\n\nIf your phone breaks, and you don...
[]
[]
[ [], [], [], [], [], [], [], [] ]
1cwqd6
Was being a frontline, front rank, musket-carrying infantryman in conflicts like the Seven Years War a death sentence?
I chose Seven Years war arbitrarily, but essentially any armed european conflict from 1700-1780 is welcome for consideration. What was done to relieve individual companies in the front line of fire? Or were front-line units frequently reduced to 2/3 and half strength? If so, how was a coherency maintained at a unit-l...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1cwqd6/was_being_a_frontline_front_rank_musketcarrying/
{ "a_id": [ "c9ktf7q", "c9kxn2e" ], "score": [ 3, 3 ], "text": [ "These types of questions have been brought up a lot around here so I will try to sum them up and then post ones I am referring to later (bed time).\n\nOne post talks about how men in these battles would actually be pretty ba...
[]
[]
[ [], [] ]
24wp03
Why do I talk louder when I can't hear my voice as well?
I've noticed if I plug my ears or wear headphones that decrease how well I can hear my own voice, I subconsciously speak louder than I would had I been able to hear my own voice fine. Is this because a person's "volume control" is based on the feedback we receive through our ears? I hope I chose the correct flair. ...
askscience
http://www.reddit.com/r/askscience/comments/24wp03/why_do_i_talk_louder_when_i_cant_hear_my_voice_as/
{ "a_id": [ "chcok2t" ], "score": [ 3 ], "text": [ "[Speakers rely on auditory feedback of their own voices when speaking.](_URL_1_) I'm not sure if that article is open-access or not.\n\nA pretty cool demonstration of how much hearing your own voice can disrupt your speech is [delayed auditory f...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Delayed_Auditory_Feedback", "http://www.sciencedirect.com/science/article/pii/S0167639397000265#" ] ]
ew0w4k
How did humans end up in the Americas before it got ‘discovered’ by Europeans?
This has always bothered me. We know humans originated in Africa. And then migrated around the region and evolved to build ships and to sail to a continent half way across the globe to find.. humans? How did they get there?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/ew0w4k/how_did_humans_end_up_in_the_americas_before_it/
{ "a_id": [ "fg09p5i" ], "score": [ 3 ], "text": [ "I would suggest cross posting this question at r/AskAnthropology. They even have an entry in their faq regarding this subject." ] }
[]
[]
[ [] ]
bbt3wj
how can we edit dna if it’s so small!?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bbt3wj/eli5_how_can_we_edit_dna_if_its_so_small/
{ "a_id": [ "eklae8p", "eklpwfy" ], "score": [ 17, 5 ], "text": [ "We use really small tools!\n\n & #x200B;\n\nKeep in mind that eventhough DNA is very small, it is absolutely necessary for an organism to have a full access to it and to manipulate it with critical accuracy. A single mistak...
[]
[]
[ [], [] ]
4s1z3d
Why does an atom that gains neutrons become radioactive?
*"Neutrons are much less influential on the chemical character and identity of an atom than protons, although they are just as hard to add to or remove from the nucleus, being so tightly bound. If neutrons are added or gained, the atom will still retain the same chemical identity, but its mass will change slightly and ...
askscience
https://www.reddit.com/r/askscience/comments/4s1z3d/why_does_an_atom_that_gains_neutrons_become/
{ "a_id": [ "d55wcxs" ], "score": [ 2 ], "text": [ "Due to the Pauli exclusion principle, you can't have have all the electrons in the same orbital, so you have electron shells and valance electrons and all that. The same applies to protons and neutrons. The important thing here is that it applies...
[]
[ "www.allaboutcircuits.com/textbook/direct-current/chpt-1/static-electricity/" ]
[ [] ]
lld84
How does the brain "store" vision?
It's really been giving me a headache to think about this, so I was wondering if someone with some background could explain it. Basically, as a programmer, if I was drawing an image I'd write the colors of it into a large chunk of memory and send the location off to the GPU to signal the screen pixels based on the val...
askscience
http://www.reddit.com/r/askscience/comments/lld84/how_does_the_brain_store_vision/
{ "a_id": [ "c2tnx3f", "c2tnx3f" ], "score": [ 4, 4 ], "text": [ "Edit: Note I'm talking about image storage, which I think is specifically what you're asking about. There is a related but separate area of the brain that just collects raw sensory data (eyes > optic nerve > lateral geni...
[]
[]
[ [ "http://www.nature.com/nrn/journal/v9/n3/authors/nrn2330.html", "http://193.62.66.20/Maguire/Maguire2006.pdf" ], [ "http://www.nature.com/nrn/journal/v9/n3/authors/nrn2330.html", "http://193.62.66.20/Maguire/Maguire2006.pdf" ] ]
1nvfsm
why do some people get so effin' angry over repetitive noises?
Today I was playing LoL and my toddler neighbor wouldn't stop screaming "ma", "ma", "ma" over and over again, with an interval of around 3 seconds in between each scream. I was on the verge of going there and killing the little monster with a chainsaw. Why does that annoy me to that point?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1nvfsm/eli5_why_do_some_people_get_so_effin_angry_over/
{ "a_id": [ "ccmfbyh", "ccmjzyl", "ccmlngb" ], "score": [ 2, 2, 2 ], "text": [ "My answer has no scientific basis, and is pretty much just my own experience, but I think when we are concentrating on certain tasks (in this instance playing LoL) and we hear things that not only distr...
[]
[]
[ [], [], [ "http://en.wikipedia.org/wiki/Hyperacusis", "http://www.egs.edu/library/arthur-schopenhauer/articles/the-essays-of-arthur-schopenhauer-studies-in-pessimism/on-noise/" ] ]
2thrm8
Pretty sure most of these photos are from WW1... what can you all tell me about them? (OC xpost from r/pics)
So i was hoping the denizens of askhistorians might be able to tell me a little about what I'm seeing in [these photos?]( _URL_0_) I found them in a friend's house they're cleaning. Many of the dates on the backs are 1918 so I'm going with WW1. (I know those plane shots are p47's so ww2 on those ones)
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2thrm8/pretty_sure_most_of_these_photos_are_from_ww1/
{ "a_id": [ "cnzwwae" ], "score": [ 2 ], "text": [ "The first four are of American troops during WWI. No patches, distinctive hats, puttees (like an ace bandage wrapped around the shoe tops and lower leg). \nTho others are from WWII, one of an infantry division (91st?) corporal/technician on a wha...
[]
[ "http://imgur.com/a/aSNQR" ]
[ [] ]
2todt6
Did the US *have* to nuke Japan in WWII?
What I mean is, it seems really haphazard and unusual to just drop massive bombs and decimate civilian cities. Was it really necessary? Could they just have bombed the shit out of a not-so-populated area to demonstrate what was possible with the nuke and maybe prompt a surrender or something? I just came to the realiz...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2todt6/did_the_us_have_to_nuke_japan_in_wwii/
{ "a_id": [ "co1291w", "co17rtk" ], "score": [ 5, 3 ], "text": [ "You might be interested in some threads from the WWII FAQ section on \"[The atomic bombs](_URL_2_)\" as well as from a recent search:\n\n**Overview of the Atomic Bombings**\n\n* [Could America have used the atomic bomb on a ...
[]
[]
[ [ "http://www.reddit.com/r/AskHistorians/comments/zzeq1/would_the_japanese_have_likely_agreed_to_total/", "http://www.reddit.com/r/AskHistorians/comments/22b90c/how_did_military_leaders_first_describe_the/", "http://www.reddit.com/r/AskHistorians/wiki/wwii#wiki_the_atomic_bombs", "http://www.reddit....
45vnwr
why does it always come down to "drink lots of fluids" when you tell the doc you gave the flu?
see title
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/45vnwr/eli5_why_does_it_always_come_down_to_drink_lots/
{ "a_id": [ "d00hyzk", "d00hzy1", "d00mgi6" ], "score": [ 45, 14, 7 ], "text": [ "There's no cure for influenza once you're sick. It's a self-limiting and mild infection that your immune system will fight off, all you have to do is keep your body working long enough for it to do so...
[]
[]
[ [], [], [] ]
dfig0i
when we sleep on our arms or legs in a weird way, why does the resulting muscle ache only seem to go away after we sleep again?
I think most people have at some point "slept on their arm weirdly," resulting in a muscle ache after waking up. I've noticed this ache seems to last a long time, even a whole day with no change, but feels fine after sleeping again. Is there something going on here specifically related to sleep? Or do we just happen to...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/dfig0i/eli5_when_we_sleep_on_our_arms_or_legs_in_a_weird/
{ "a_id": [ "f33xce8" ], "score": [ 3 ], "text": [ "I’m not an expert, but my understanding is that sleep helps the body heal from a lot of different things, including this.\n\nThe 5-year-old version is that while asleep, your body can put all of its focus on maintenance instead of giving you ener...
[]
[]
[ [] ]
az8n0g
Was the Propaganda leaflets dropped over japan effective?
After the bombing of Hiroshima the U.S dropped its rather infamous warning leaflets over key cities in Japan. What i'm wondering is whether they were successful in preventing some loss of life. Did some Japanese actually flee from Nagasaki in between the first atomic attack and the second.
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/az8n0g/was_the_propaganda_leaflets_dropped_over_japan/
{ "a_id": [ "ei6nqie" ], "score": [ 6 ], "text": [ "Contrary to a lot of internet confusion, no leaflets warning about the atomic bomb were dropped on Japanese cities prior to the bombing of Nagasaki. Certainly none indicated any actual possible targets. You can read the whole story [here](_URL_0_...
[]
[]
[ [ "http://blog.nuclearsecrecy.com/2013/04/26/a-day-too-late/" ] ]
4u91nx
What was J.S. Bach's personality like?
As the question says, I'm suddenly interested in the character and attitudes and life of the man behind the music. I'm classically trained in piano and Bach has been one of my favorite composers. I've done a little bit of reading and I've come across conflicting answers - some places say he was fairly religious and per...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/4u91nx/what_was_js_bachs_personality_like/
{ "a_id": [ "d5nsosy" ], "score": [ 2 ], "text": [ "I am not a Bach scholar, so take this with caution.\n\nMy understanding is that we don't have much to know about his private life. There aren't many personal documents of his... For other composers we have many letters, and even fragments of conv...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Great_Man_theory" ] ]
587lmt
how can a country survive without government?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/587lmt/eli5how_can_a_country_survive_without_government/
{ "a_id": [ "d8y47so", "d8y49jt", "d8y4b3d", "d8y4fdt", "d8y8h9k" ], "score": [ 3, 8, 3, 2, 2 ], "text": [ "There aren't really any historical precedents and the closest contemporary examples (e.g. Somalia) sure don't look good.", "They can't... or at least... n...
[]
[]
[ [], [], [], [], [] ]
ykmno
A question regarding language...
Forgive me if this question seems trivial, but I was contemplating about the different varieties of languages and I was wondering how is there such a disparity between most? There are groupings of languages (such as Romance) that have similar structure, syntaxs and even nearly exact words, but how can some seemingly sh...
askscience
http://www.reddit.com/r/askscience/comments/ykmno/a_question_regarding_language/
{ "a_id": [ "c5wfaf3" ], "score": [ 2 ], "text": [ "Some groups of humans separated at least fifty-thousand years ago. Just look how different some dialects are in the US although they only had about 250 years to form and English is a pretty established language and you don't find new things you n...
[]
[]
[ [] ]
5dhf38
why do streams need to buffer although the bar shows that it has many minutes preloaded already?
For example I'm 48 minutes into a stream and the bar shows that it has buffered up to 54 minutes of a total of a 55 minutes file. Why does it suddenly start buffering again although there would be plenty to watch? [Like this](_URL_0_)
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5dhf38/eli5_why_do_streams_need_to_buffer_although_the/
{ "a_id": [ "da4j066", "da4ohpb", "da4putq" ], "score": [ 3, 2, 2 ], "text": [ "I know YouTube stopped doing this as many people were not watching all the way through, so they now only pre-load in segments, say 30sec intervals. What may what happened to you is the player is incorre...
[]
[ "http://imgur.com/a/v4Iyc" ]
[ [], [], [] ]
49gcqh
Is it possible to slow down radioactive decay through cooling?
Would it be possible to cool an element to where it will slow down the radioactive decay.
askscience
https://www.reddit.com/r/askscience/comments/49gcqh/is_it_possible_to_slow_down_radioactive_decay/
{ "a_id": [ "d0rwnu5", "d0s4szz" ], "score": [ 13, 6 ], "text": [ "To the best knowledge we have at present, radioactive decay is not perceptibly affected by any external conditions such as temperature or pressure.\n\nChemical composition of the substance slightly affects some forms (elect...
[]
[]
[ [], [ "http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.77.5190" ] ]
6ynder
How do distant neurons know to connect with each other to create new pathways?
To be clear I'm talking about distant unconnected neurons, not just a change in dendrite strength or spine quantity. Reading through various wikipedia articles, I understand that a neurons axiom sends out growth cones and that these cones are guided to a new neuron via chemical signalling. But how does a neuron know ...
askscience
https://www.reddit.com/r/askscience/comments/6ynder/how_do_distant_neurons_know_to_connect_with_each/
{ "a_id": [ "dmpeewq", "dmphk1e", "dmqur6i" ], "score": [ 4, 2, 2 ], "text": [ "Most synapses are formed during development and the number of synapses in humans peaks in early development. This process is largely governed genetically during development. This synaptic maximum is fol...
[]
[]
[ [], [], [ "https://books.google.co.uk/books?id=kBW4BAAAQBAJ&pg=PA67&lpg=PA67&dq=neurodevelopment+TrkA&source=bl&ots=aM6JCuvwPX&sig=ACMIYdcRgzFmHOUrOJ-RtOsHQ4M&hl=en&sa=X&ved=0ahUKEwiViOnvspbWAhVHFMAKHanFB4gQ6AEIMDAD#v=onepage&q=neurodevelopment%20TrkA&f=false" ]...
a51ytx
how did it come to be that michael jackson owned the beatles’ songs?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/a51ytx/eli5_how_did_it_come_to_be_that_michael_jackson/
{ "a_id": [ "ebj95h2" ], "score": [ 3 ], "text": [ "Songwriters often contract with a publishing company to market their songs for commercial purposes. That means they sell the rights to commercial use to the company, and the company pays them royalties (either a flat dee or a percentage every tim...
[]
[]
[ [] ]
23rc3m
If we can "freeze" light for a minute, does that mean that we can "freeze" time?
askscience
http://www.reddit.com/r/askscience/comments/23rc3m/if_we_can_freeze_light_for_a_minute_does_that/
{ "a_id": [ "cgzudq6", "cgzvpsq", "cgzytds" ], "score": [ 32, 9, 3 ], "text": [ "No. The freezing of light actually involves absorbing light in a very cold gas. It's so cold that the atoms have an \"absorbed\" state that lasts a very long time before re-emitting the light in its fo...
[]
[]
[ [], [], [] ]
4y5wcr
why are we less likely to fancy new stuff (especially music, art, cartoons, etc) when we get older? why does it always seem that only children and teenagers pick up on the latest crazes?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4y5wcr/eli5why_are_we_less_likely_to_fancy_new_stuff/
{ "a_id": [ "d6l65mw", "d6l9392", "d6lbw7c", "d6lgq15" ], "score": [ 5, 7, 3, 2 ], "text": [ "Lack of time, mostly. When you've got a 40+ hour job, kids to raise and other obligations, it becomes much more difficult to devote time to seeking out new culture. Stuff that you'...
[]
[]
[ [], [], [], [] ]
fxvg0
Humans are one species, but we speak different languages in different parts of the world, which means not every human could communicate with every other human. Are any other species like this?
askscience
http://www.reddit.com/r/askscience/comments/fxvg0/humans_are_one_species_but_we_speak_different/
{ "a_id": [ "c1jfpc9", "c1jfqxz", "c1jfvq9" ], "score": [ 9, 13, 4 ], "text": [ "Humans can communicate without language.\n\nCommunication through a shared cultural experience like language is another story. Birds and whales have been known to sing in regionally-specific patterns w...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Killer_whale#Vocalizations" ], [ "http://en.wikipedia.org/wiki/Song_Sparrow" ] ]
2ab0w1
what would the u.s. government have to do in order to make college free in the states?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2ab0w1/eli5_what_would_the_us_government_have_to_do_in/
{ "a_id": [ "cit9yoi" ], "score": [ 3 ], "text": [ "I'll assume that we're trying for a Swedish style system because, hey, that's worked. I'm on mobile, so I won't pull sources unless you guys need them.\n\nOver there, they spend about 4% of their GNP on education and research, one of the highest ...
[]
[]
[ [] ]
518meq
flashing headlights at oncoming traffic
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/518meq/eli5_flashing_headlights_at_oncoming_traffic/
{ "a_id": [ "d7a3ck9", "d7a3ea8" ], "score": [ 4, 3 ], "text": [ "Having lived in the UK and Australia I can say that in these places at least this usually means that there is a speed camera stationed up ahead and the other driver is warning you.", "They're trying to say \"pay attentio...
[]
[]
[ [], [] ]
5i94l5
What substance (if any) is there to claims of Pre-Columbian trans-oceanic contact by the Arab or Muslim sailors?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/5i94l5/what_substance_if_any_is_there_to_claims_of/
{ "a_id": [ "db6iugs" ], "score": [ 3 ], "text": [ "There's always room for discussion but perhaps the section [Travel and contact across the Atlantic before Columbus](_URL_0_) from our FAQ will answer your inquiry." ] }
[]
[]
[ [ "https://www.reddit.com/r/AskHistorians/wiki/nativeamerican#wiki_travel_and_contact_across_the_atlantic_before_columbus" ] ]
3rq1tv
Could somebody who specialises in American history assess the historical accuracy of the article "Southern Slavery As It Was" written by two American pastors with Confederate sympathies?
_URL_0_ Doug Wilson describes himself as a ["paleo-Confederate"](_URL_2_). Steven Wilkins is a former board member of the [League of the South](_URL_1_).
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/3rq1tv/could_somebody_who_specialises_in_american/
{ "a_id": [ "cwqeqs8", "cwqez7k", "cwqf6v4" ], "score": [ 7, 4, 34 ], "text": [ "I haven't read Wilson and Wilkins' book, but I've read several reviews of it which, as far as I can tell, tear it apart. [Here's one response](_URL_2_) from Rev. Jack Davidson of Eugene, OR, engaging ...
[]
[ "http://reformed-theology.org/html/books/slavery/southern_slavery_as_it_was.htm", "https://en.wikipedia.org/wiki/League_of_the_South", "https://www.youtube.com/watch?v=8y0fTaMBESs" ]
[ [ "https://www.reddit.com/r/AskHistorians/wiki/civilwar#wiki_causes", "http://web.archive.org/web/20130830105312/http://www.joshualetter.org/index.php?option=com_content&task=view&id=34&Itemid=63", "http://web.archive.org/web/20130830105624/http://www.joshualetter.org/index.php?option=com_co...
70kkkz
how was professional cooking and baking handled hundreds of years ago in the hot seasons with no refrigeration?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/70kkkz/eli5_how_was_professional_cooking_and_baking/
{ "a_id": [ "dn3twdq", "dn3u0e3", "dn3ul3h" ], "score": [ 2, 3, 10 ], "text": [ "No complex concept here. People cooked or baked every day, and ate the products soon so they didn't have a chance to rot. ", "Everything was made fresh.\n\nYou didn't store chicken breasts in a fre...
[]
[]
[ [], [], [] ]
3aa0w0
Roman, Merovingian, and Carolingian political organization: what was the relationship between them?
To be more precise, to what extent was the political organization of Merovingian Gaul (dukes, counts, senators, patricians, etc.) a continuation of late Gallo-Roman political organization under the Western Empire? And to what extent were the Frankish aristocrats of the Merovingian era - dukes, counts, graffen, etc. - a...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/3aa0w0/roman_merovingian_and_carolingian_political/
{ "a_id": [ "csay242", "csayivi" ], "score": [ 11, 3 ], "text": [ "I can tell you about the Carolingian organization and the birth of feudalism\n\nCarolingian administration was in some aspects a direct inheritor of Roman tradition, attemtping a centralized imperial administration, where i...
[]
[]
[ [], [] ]
9pds43
what happens with all the profits the fortune 500 companies make?
[_URL_0_](_URL_0_) I see that all these companies have made billions of dollars of profit, not revenue, and I don't understand where that money goes. Do they save it? Do they invest it? Do shareholders get it? Something else? As a follow up, it seems to me that this much money in corporate bank accounts is less mone...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9pds43/eli5_what_happens_with_all_the_profits_the/
{ "a_id": [ "e80zioc", "e80zy70", "e8117mb", "e815z4m" ], "score": [ 4, 4, 2, 3 ], "text": [ "Like any other companies's profits. It goes into bank account and used to pay for things later. \n\nMaybe later next year we build a new factory. Maybe we buy new machines. Mayb...
[]
[ "http://fortune.com/fortune500/list/filtered?sortBy=profits&first500" ]
[ [], [], [], [] ]
1qkupp
Has there ever been a country that **de**industrialized for self-sustainability purpose?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1qkupp/has_there_ever_been_a_country_that/
{ "a_id": [ "cde7zcx", "cdenicn" ], "score": [ 3, 3 ], "text": [ "I personally have no knowledge of any in modern times that did this on their own accord, though Germany post WWII was forced to deindustrialize. The [Morgenthau Plan](_URL_1_) was proposed by [Hengry Morgenthau](_URL_0_.) wh...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Henry_Morgenthau,_Jr", "http://en.wikipedia.org/wiki/Morgenthau_Plan" ], [ "http://www.paulbogdanor.com/left/cambodia/locard.pdf" ] ]
ary092
hand sanitizer kills the germs, but the germs still remains on our hands. so its not clean right?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ary092/eli5_hand_sanitizer_kills_the_germs_but_the_germs/
{ "a_id": [ "egqdi7z", "egqem3p", "egqf3g1", "egqmmya", "egqrq9y", "egrvsx0" ], "score": [ 2, 4, 2, 7, 2, 2 ], "text": [ "yeah hand sanitizer is a good stop gap if you're in a place you can't wash and just wanna disinfect, but you cant just use hand sanitiz...
[]
[]
[ [], [], [], [], [], [] ]
7zlb2u
What would a spaceship moving at 0.9c firing lasers both in front of it and behind it look like to an external reference frame?
I'm having some difficulties wrapping my head around how fast the ship would appear relative to the two lasers. In order for both to be moving away from the spaceship at c, the spaceship would also have to appear to be not moving. Where am I wrong/what am I missing?
askscience
https://www.reddit.com/r/askscience/comments/7zlb2u/what_would_a_spaceship_moving_at_09c_firing/
{ "a_id": [ "dup4f3s", "dup723n" ], "score": [ 27, 9 ], "text": [ "An observer who sees the spaceship moving at speed 0.9*c*, will see both light signals moving at speed *c*. The distance between the ship and the front signal increases at a rate of 0.1*c*. The distance between the ship and...
[]
[]
[ [], [] ]
5rinw3
why do they launch boats sideways instead of forward when first launching them?
It also looks like they just roll straight in, do they not use any mechanism to slow the boat down?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5rinw3/eli5_why_do_they_launch_boats_sideways_instead_of/
{ "a_id": [ "dd7l3rf" ], "score": [ 31 ], "text": [ "Boats are designed to have their weight supported for the entirety of the keel length. \n\nIf you tried to launch long boat pointy bit first, you'd have a time when the front is in the water, the back is still on the dock and the middle is unsup...
[]
[]
[ [] ]
3ve2oj
why does insulation work?
My entirely uneducated intuition on the matter tells me that putting a blanket against a window will *delay* cold air getting inside. But, eventually, the blanket will become as cold as the average of the outside and inside. In what ways is this beneficial? How does this work on a physical/thermodynamic level? Edit: ...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3ve2oj/eli5_why_does_insulation_work/
{ "a_id": [ "cxmq6xq", "cxmq9di", "cxmqbwj", "cxmqs85", "cxmroj4" ], "score": [ 4, 8, 4, 2, 9 ], "text": [ "Heat moves in 3 ways, convection, radiation and conduction.\n\nWarm air in the room, comes near the cold window, cools, and settles downwards towards the floo...
[]
[]
[ [], [], [], [], [ "http://www.theatlantic.com/business/archive/2014/01/it-is-expensive-to-be-poor/282979/", "http://wiki.lspace.org/mediawiki/index.php/Sam_Vimes_Theory_of_Economic_Injustice", "https://en.wikipedia.org/wiki/Caloric_theory" ] ]
1p5swh
What were relations like between Pirates and Native Americans?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1p5swh/what_were_relations_like_between_pirates_and/
{ "a_id": [ "ccz5wzo" ], "score": [ 16 ], "text": [ "Mixed.\n\nSome pirates utilized them to great ability, if your definition of \"pirate\" encompases privateers, buccaneers, corsairs, and freebooters. For simplicities sake, I'll use the term \"pirate\" as a catch all term for non-traditional no...
[]
[]
[ [] ]
28smgw
Why are the major producing oil fields located where they are?
askscience
http://www.reddit.com/r/askscience/comments/28smgw/why_are_the_major_producing_oil_fields_located/
{ "a_id": [ "cie5lw8", "cielhxv" ], "score": [ 16, 3 ], "text": [ "Oil fields are where they are as a due to the location of ancient organic-rich basins. Why were the organic-rich basins there? Tectonics, they generally drive the placement of landmasses.\n\n\nFor oil to be extracted, it n...
[]
[]
[ [], [] ]
eaxkvq
how do caterpillars know when to spin a cocoon?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/eaxkvq/eli5_how_do_caterpillars_know_when_to_spin_a/
{ "a_id": [ "faytg73" ], "score": [ 8 ], "text": [ "How do you know when to go to the bathroom or shield your eyes from the sun with your hand?\n\nOkay it's not exactly the same, but we can all explain how it's because of chemical signals and hormones that indicate to the organism to change their ...
[]
[]
[ [] ]
xfq58
I heard the Human body holds many more bacterial cells than it has Human cells. Hypothetically speaking, if all the bacterial cells could be removed from an average human, would that translate to a significant loss in weight?
I know if all the bacterial cells were removed it would probably be a very bad situation for any human. I am also aware that bacterial cells are smaller than human cells. I am just curious how much of an average humans weight comes from bacterial cells living on/in the body.
askscience
http://www.reddit.com/r/askscience/comments/xfq58/i_heard_the_human_body_holds_many_more_bacterial/
{ "a_id": [ "c5ly3yq" ], "score": [ 2 ], "text": [ "Not particularly. The vast majority are in your large intestine and appear to be feces in training. Each individual bacterial cell is much smaller than the average human cell, thus the difference." ] }
[]
[]
[ [] ]
3nw69o
why do closed rooms have a particular "smell" to them?
When you reenter a house or room after the windows have been shut for a while, why is there an instantaneous stale smell? Why is it always the same?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3nw69o/eli5_why_do_closed_rooms_have_a_particular_smell/
{ "a_id": [ "cvrsr9x" ], "score": [ 2 ], "text": [ "the smell (in general) is because of the molecules carried by the air like salt in the sea. That means that when you're smelling, let's say an orange, you absorb orange molecules that carries the smell. \n\nWhen air is stagnant, you get something...
[]
[]
[ [] ]
2gwn4x
how does yelp manipulate reviews?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2gwn4x/eli5_how_does_yelp_manipulate_reviews/
{ "a_id": [ "ckn79av", "ckn7gt5", "ckn7iux" ], "score": [ 4, 3, 3 ], "text": [ "Yelp was accused of manipulating reviews, almost in a Mafia-like fashion. Business owners would get calls from Yelp asking if they wanted to purchase advertising (Yelp's main source of revenue). If they...
[]
[]
[ [], [ "http://www.eastbayexpress.com/oakland/yelp-and-the-business-of-extortion-20/Content?oid=1176635" ], [] ]
cingl1
Why did people think Anastasia survived/escaped the Romanov execution?
Is there any reason why should was more likely to survive than her siblings?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/cingl1/why_did_people_think_anastasia_survivedescaped/
{ "a_id": [ "evb71zy" ], "score": [ 17 ], "text": [ "There were rumors of each of them being the sibling to have survived, actually - and bear in mind that the full story we know of the Romanovs being executed in the House of Special Purpose was not publicly known at the time. People weren't even ...
[]
[]
[ [ "https://www.reddit.com/r/AskHistorians/comments/aba044/who_was_larissa_tudor/" ] ]
1nuo22
why can astronomers see many distant galaxies but they don't know what's on outside of our own solar system?
The Oort Cloud is only hypothetical, yet we can see galaxies billions of light years away. I don't understand.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1nuo22/eli5_why_can_astronomers_see_many_distant/
{ "a_id": [ "ccm6uzx", "ccm6vmn", "ccmbeje" ], "score": [ 86, 5, 4 ], "text": [ "The Oort cloud isn't actually emitting any light, so there isn't anything for our telescopes to pick up on. Distant galaxies, on the other hand, are composed of countless stars as bright as or brighter...
[]
[]
[ [], [], [] ]
70agth
The Collapse of the Kievan Rus'
Why is it that a powerful Russian state based out of Kiev never re-emerged after the collapse of the Mongol empire despite having been the most prominent Rus' city prior to that? Also why it is that Kiev was sacked during the Mongol conquest and yet other large cities such as Moscow and Novgorod managed to escape that...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/70agth/the_collapse_of_the_kievan_rus/
{ "a_id": [ "dn2a7pl" ], "score": [ 9 ], "text": [ "Firstly, Moscow was never a large city prior or during Mongol conquest. And it was sacked.\nSecondly, Novgorod avoided the fate because it was far enough away to the Mongols to not bother to go there. Novgorod accepted the Mongol rule anyway.\nTh...
[]
[]
[ [] ]
2wf5ws
Why was Catharism never as succesful as Protestantism?
Why was Catharism which came more than 3 centuries before Protestantism not as succesful as the latter? If I recal correctly Catharism was reasonably widely spread it formed mostly around rich harbor towns (?) like Protestantism (?). What are the main differences between the two? Oh and I would also like to know which ...
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2wf5ws/why_was_catharism_never_as_succesful_as/
{ "a_id": [ "coq8qrs", "coq9p1d", "coqvzlf" ], "score": [ 9, 6, 6 ], "text": [ "Hi! You might be interested in this similar thread:\n\n* [How was it that Protestantism spread so far and to so many people in Europe, when previous heresies such as Catharism and Fraticelli were much s...
[]
[]
[ [ "http://www.reddit.com/r/AskHistorians/comments/2ovpon/how_was_it_that_protestantism_spread_so_far_and/" ], [ "http://www.reddit.com/r/AskHistorians/comments/20qcoq/cathars_and_ranters_didnt_exist/cg5t9ki" ], [] ]
4oipak
Were the plays and poetry made by William Shakespeare considered vulgar, sexually explicit and immoral in his own lifetime, or shortly after his death? Was he considered a great playwright during his lifetime?
I've read in some articles that the plays and poetry of Shakespare was actually vulgar, sexually implicit and he was considered "low art". And that Titus Andronicus was overloaded with gore and violence. How is the veracity of these claims? What was the reaction of the contemporary English public, or whoever his audi...
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/4oipak/were_the_plays_and_poetry_made_by_william/
{ "a_id": [ "d4d6kdj" ], "score": [ 4 ], "text": [ "Shakespeare was writing for a \"common\" audience, as well as for a noble one. His plays were ones that everyone could understand, which did mean that there are several that have \"low art\" in them. Much Ado about Nothing comes to mind, there ar...
[]
[]
[ [] ]
2oie6m
How did one join the Soviet secret police in the 1920's?
I'm writing a memoir (for school) from a first-person perspective of someone who lived in the Soviet Union and looking for more information on the selection process for the Soviet secret police, specifically the Joint State Political Directorate.
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/2oie6m/how_did_one_join_the_soviet_secret_police_in_the/
{ "a_id": [ "cmnidcn" ], "score": [ 8 ], "text": [ "Originally, the CHEKA was originally drawn from Petrograd Bolshevik members. As it grew into the 1920's Felix Dzerzhinksy, the man Lenin put in charge of the CHEKA after its initial head, Moses Uritski, was shot and killed, recruited from members...
[]
[]
[ [] ]
1q92qp
how do news organizations report natural disaster death counts so specifically and so quickly (i.e. "88 people dead as a result of ...")?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1q92qp/eli5_how_do_news_organizations_report_natural/
{ "a_id": [ "cdaeqfe", "cdaqw0e" ], "score": [ 13, 2 ], "text": [ "When there are major incidents, local emergency workers generally establish a command post-type place where things like fatalities are reported as soon as they're located. When they give the death toll, they give it based ...
[]
[]
[ [], [ "http://www.smbc-comics.com/?id=2440" ] ]
zwt3h
what is *everything* made of?
We have atoms, and quarks, and gluons, but what are they each made of, and what are the things they're made of, made of? How deep does this go before things stop being made of things and just are?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/zwt3h/what_is_everything_made_of/
{ "a_id": [ "c68eeed", "c68f84x" ], "score": [ 7, 4 ], "text": [ "The 12 particles and 4 forces of the Standard Model. It stops at the elemental particles like quarks, gluons, electrons, photons, neutrinos stuff like that", "Well it matters who you ask. Most will say that right now, an...
[]
[]
[ [], [] ]
vxmhf
how can dogs bark and whine if they don't have a voice box?
I assume they don't have a voice box, otherwise they'd be able to talk, right?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/vxmhf/eli5_how_can_dogs_bark_and_whine_if_they_dont/
{ "a_id": [ "c58i3zh", "c58kla7" ], "score": [ 6, 2 ], "text": [ " > I assume they don't have a voice box, otherwise they'd be able to talk, right?\n\nNot right. Pretty much all amphibians, reptiles, birds and mammals have a larynx (aka, \"voice box\").\n\nTo quote Wikipedia:\n\n > comput...
[]
[]
[ [], [] ]
uh5az
What aspects of Turner's Frontier thesis are still accepted by modern environmental historians?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/uh5az/what_aspects_of_turners_frontier_thesis_are_still/
{ "a_id": [ "c4vdwak" ], "score": [ 4 ], "text": [ "Forgive me for not directly answering the question, but since there are no responses yet, I'll give a little background on the Turner thesis. You can find the text of the thesis online here (1920 republishing): _URL_0_\n\nThe American frontier ...
[]
[]
[ [ "http://xroads.virginia.edu/~hyper/turner/" ] ]
zs0xr
How common was violence against peasants in the Middle Ages? Is it exaggerated in novels and films?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/zs0xr/how_common_was_violence_against_peasants_in_the/
{ "a_id": [ "c679gu1", "c679s6b" ], "score": [ 17, 27 ], "text": [ "Unfortunately, there are few sources available to answer this definitively. Most chronicles from the time would be more concerned with the affairs if the Church and of those people rich enough to matter.\n\nIt is certainly...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Russkaya_Pravda", "http://en.wikipedia.org/wiki/Sudebnik" ] ]
35cui5
why exactly do phone carriers sell their cellular devices with all of those unnecessary apps that users can't delete and stay on your phone forever unused?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/35cui5/eli5_why_exactly_do_phone_carriers_sell_their/
{ "a_id": [ "cr37m8i" ], "score": [ 5 ], "text": [ "Somebody is paying them to. Since it's not you, suspicion would have to fall on the app producers, or the data sellers that benefit from the data extracted by the apps." ] }
[]
[]
[ [] ]
2fy6nk
as something gets closer and closer to the exact center of a body of mass (say, earth), what happens to the gravitational force from that body of mass?
Ok, so this is a bit of a multi part question. So say it was completely possible to drill down to the exact center of the earth. How would gravity change from the surface of earth to the core? Would the force of gravity become stronger and stronger, opposite of if you were moving away from the surface towards space?...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2fy6nk/eli5_as_something_gets_closer_and_closer_to_the/
{ "a_id": [ "ckdup95" ], "score": [ 3 ], "text": [ " > So say it was completely possible to drill down to the exact center of the earth. How would gravity change from the surface of earth to the core?\n\nIf the Earth were the same density throughout, gravity would drop the further down you went, a...
[]
[]
[ [ "http://en.wikipedia.org/wiki/Shell_theorem" ] ]
8jdtfj
why is it that you can try something for hours and hours, take a break/be done for the day and somehow do it your first time upon retrying?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8jdtfj/eli5_why_is_it_that_you_can_try_something_for/
{ "a_id": [ "dyyubjc", "dyyuc8h" ], "score": [ 4, 5 ], "text": [ "Your subconscious continues the learning process while you do other stuff or sleep. Also your body and mind are now well rested and it makes it easier to do stuff.", "I just heard a really great interview with sleep expe...
[]
[]
[ [], [] ]
1w7xx3
Why did the Lorica Segmentata become the foremost armor both before and after the use of chain mail? What was special about the period that favored it? Why did plate not gain prominence again for a thousand years?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1w7xx3/why_did_the_lorica_segmentata_become_the_foremost/
{ "a_id": [ "cezsjfi", "cezsxw3" ], "score": [ 9, 14 ], "text": [ "Lorica segmentata was designed largely as a form of scale/plate hybrid armor that had overlapping strips of metal that allowed a wide range of protection. Its initial advantages, namely being more sturdy and resilient as a ...
[]
[]
[ [], [ "http://www.reddit.com/r/AskHistorians/comments/1dx0v2/why_did_the_roman_army_choose_to_abandon_its/c9ur99p", "http://www.reddit.com/user/bitparity", "http://www.myarmoury.com/feature_mail.html" ] ]
2buw2c
why do people turn down the music when they're close to locating a street or destination?
When you're really close to getting to your destination you turn down the music as if it will help you see where you're going better?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2buw2c/eli5_why_do_people_turn_down_the_music_when/
{ "a_id": [ "cj94fe7", "cj94mod", "cj96t8w" ], "score": [ 13, 2, 8 ], "text": [ "I do it because I feel like it helps me focus. The music seems like a distraction, especially if it's loud.", "Depends how loud you have it I suppose...I usually play mine pretty loud in the car s...
[]
[]
[ [], [], [ "http://www.jhu.edu/news/audio-video/brain.html" ] ]
8ao9w4
what is actually happening (inside) when you plug a portable charger into itself?
As much as its amusing to see a portable charger "charge itself", why is it bad?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8ao9w4/eli5_what_is_actually_happening_inside_when_you/
{ "a_id": [ "dx086rt", "dx1cji9" ], "score": [ 7, 2 ], "text": [ "It's not technically bad, it's just dumb (no offense). All that will happen is the charger will generate heat from the current while slowly losing charge to the resistance of the cable used to plug it into itself. Longer ca...
[]
[]
[ [], [] ]
3gynrb
why do people in the us work so much?
I have heard that Americans have longer work hours or have more work hours than the nations in Europe(and maybe other places too). I even heard about the jobs in the US offering little vacation time. Why is that?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3gynrb/eli5_why_do_people_in_the_us_work_so_much/
{ "a_id": [ "cu2n9pa", "cu2njqy", "cu2ojfq", "cu32ckq" ], "score": [ 9, 5, 2, 2 ], "text": [ "Average work week in the US is 47 hours a week. Full time is 40 hours. There is no required amount of vacation time in the US, the average number of days of paid vacation a year ar...
[]
[]
[ [], [], [], [] ]
4cokqm
all 5 mass extinction of the earth
What are the causes? What was life like before/after they happened?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4cokqm/eli5_all_5_mass_extinction_of_the_earth/
{ "a_id": [ "d1k3nn2", "d1kgjzl" ], "score": [ 7, 2 ], "text": [ "[From youngest to oldest...](_URL_0_)\n\n0. **[Holocene/Anthropocene Extinction](_URL_4_):** Ongoing. By all accounts, humans are now in the midst of a [6th major extinction](_URL_2_). Only the culprit this time isn't an ast...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Extinction_event#Major_extinction_events", "https://en.wikipedia.org/wiki/Deccan_Traps", "https://en.wikipedia.org/wiki/Quaternary_extinction_event", "https://en.wikipedia.org/wiki/Extinction_event#Causes", "https://en.wikipedia.org/wiki/Holocene_extinction", ...
6f90mp
why is saudi arabia not diversifying their economy to include solar or wind power?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6f90mp/eli5_why_is_saudi_arabia_not_diversifying_their/
{ "a_id": [ "digca1k", "digcr3f", "diggtc8" ], "score": [ 4, 6, 2 ], "text": [ "Oil is so cheap there that solar and wind aren't affordable in comparison.", "But they are:\n\n[Source 1](_URL_2_)\n\n[Source 2](_URL_1_)\n\n[Source 3](_URL_0_)", "Solar and wind are strictly lo...
[]
[]
[ [], [ "http://www.independent.co.uk/news/business/news/saudi-arabia-oil-revenue-production-solar-power-shift-electricity-energy-opec-a7488626.html", "http://www.thenational.ae/business/energy/saudi-arabia-creates-unit-to-focus-on-renewable-energy", "https://www.bloomberg.com/news/articles/2017-02-20/s...
3elnc9
When the US entered WW2, how far did geography determine where a draftee would be deployed? For instance were those from Cali more likely to head into the Pacific, and likewise New Yorkers into Europe/North Africa? Brit here and it's something I've no idea about!
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/3elnc9/when_the_us_entered_ww2_how_far_did_geography/
{ "a_id": [ "ctg6z7o", "ctg71b6", "ctg7o5q", "ctgj80x" ], "score": [ 79, 230, 486, 11 ], "text": [ "Hello everyone, \n\nUnfortunately, we have already had to remove a number of poor quality responses in this thread. In this thread, there have been a large number of incorrec...
[]
[]
[ [ "http://www.reddit.com/r/AskHistorians/submit?selftext=true&title=", "http://www.reddit.com/message/compose?to=%2Fr%2FAskHistorians&subject=Question%20Regarding%20Rules", "http://www.reddit.com/r/AskHistorians/wiki/rules" ], [], [ "https://books.google.com/books?id=W9YeBgAAQBAJ&p...
7x525n
why are portraits, any paintings of humans really, almost always left or right-facing instead of directly forward?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7x525n/eli5_why_are_portraits_any_paintings_of_humans/
{ "a_id": [ "du63n4x" ], "score": [ 4 ], "text": [ "People often look less flattering when faced front on. If you’re creating an artwork you most likely want it to look as aesthetically pleasant as possible. This would be much harder if the subject looked ugly. \n\nAlso when drawing or painting th...
[]
[]
[ [] ]
2i36fq
Is "Common Ancestor" a Literal Concept of a Single Animal?
We often see reference to our "common ancestor", particularly in genealogical "we're all related" type arguments, but it seems to me that life did not begin with a single organism and, esp., that evolutionary changes leading to populations created by sexual reproduction are not singular - i.e. there may have been 10 or...
askscience
http://www.reddit.com/r/askscience/comments/2i36fq/is_common_ancestor_a_literal_concept_of_a_single/
{ "a_id": [ "ckypc7k", "ckyq43r", "ckz76fn" ], "score": [ 2, 4, 2 ], "text": [ "It makes more sense to think of a common ancestral population rather than individual. It is always a population issue, not just an individual.", "In evolutionary terms \"common ancestor\" is not use...
[]
[]
[ [], [], [] ]
4y5mtj
why does it make a difference in taste, if the water i brew tea with has boiled or not?
It's the other way around with mate: if the water hasn't boiled the mate tastes fine, if it boiled it's spoiled. What does boiling do to the water?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4y5mtj/eli5why_does_it_make_a_difference_in_taste_if_the/
{ "a_id": [ "d6l4zzu" ], "score": [ 21 ], "text": [ "It's about temperature and solubility. Coffee is the same way, you're toeing a fine line with certain flavor compounds that come out at certain temps.\n\nFor instance, if you boil the water, once it's all mixed in with the tea leaves it'll sit a...
[]
[]
[ [] ]
bu0ngh
In theory (disregarding light pollution), do we see more stars now than our ancestors hundreds of years ago?
Given that it takes a certain amount of time for the light emitted by stars to reach us, does this mean we see more stars as time progresses? or does it mean we see older and older stars but not necessarily “more”. Thanks!
askscience
https://www.reddit.com/r/askscience/comments/bu0ngh/in_theory_disregarding_light_pollution_do_we_see/
{ "a_id": [ "ep6pknm", "ep6vuw8", "ep82aau" ], "score": [ 12, 6, 3 ], "text": [ "Not really, no. The length of time that's passed even over the entire existence of mankind is a very small portion of the universe's age, so the factor by which the observable universe has grown during...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Cosmic_microwave_background" ], [], [ "https://www.skyandtelescope.com/astronomy-news/milky-way-supernova-rate-confirmed/" ] ]
1ye1ms
what happens when someone wins a large amount of money (powerball, pch) and why does everyone seem to be broke after?
What are the actual winnings like? How high are the taxes? Why does everyone seem to go broke after winning?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1ye1ms/eli5_what_happens_when_someone_wins_a_large/
{ "a_id": [ "cfjqfjn" ], "score": [ 2 ], "text": [ "People go broke mainly because they don't understand that if you are not making money right now, you should not be spending it. They don't invest the money they make in something that will make them money and they spend large amounts of money bec...
[]
[]
[ [] ]
33i09h
Do plants/trees experience wind chill?
If yes, do plants and trees experience wind chill in the same way we humans experience it?
askscience
http://www.reddit.com/r/askscience/comments/33i09h/do_plantstrees_experience_wind_chill/
{ "a_id": [ "cql6y85" ], "score": [ 2 ], "text": [ "Wind chill is simply a way of expressing the enhanced rate of convective heat transfer on surfaces due to convection. This applies for all surfaces, not just human skin. So yes, a tree will have more heat transfer away from its surface when the...
[]
[]
[ [] ]
3m3p7j
How can you separate mixed dna samples?
Every now and then, I have a memory from an old episode of Quantum Leap where Sam becomes a woman, and long story short, saves her son from being abducted by two men. At one point, the men discuss how if they both rape the boy, the authorities will be at a loss because the DNA would be mixed and impossible to identify...
askscience
https://www.reddit.com/r/askscience/comments/3m3p7j/how_can_you_separate_mixed_dna_samples/
{ "a_id": [ "cvbsez8", "cvc9w47" ], "score": [ 4, 2 ], "text": [ "They always have to do this to separate out the victim's DNA. Adding one extra isn't too tough - if you know there are two perpetrators, they test quite a bit of DNA and can get 3 different results. In a large gang rape, it ...
[]
[]
[ [ "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3990198/" ], [] ]
1qws7h
What would be found in a WW2 British soldiers rucksack or knapsack
Working on a paper regarding the articles that would be found in the bag of a common British (or any solider for that matter) bag. Thank you for the help
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/1qws7h/what_would_be_found_in_a_ww2_british_soldiers/
{ "a_id": [ "cdhq2np" ], "score": [ 4 ], "text": [ "This [YouTube](_URL_0_) link shows some of the items a British solider would have during the Japanese invasion of Singapore. Some canned food, grenades, .303 ammunition, gas masks and a few other items that I can't make out. It also brings up a...
[]
[]
[ [ "http://www.youtube.com/watch?v=pbszSQaIGz8&t=19m" ] ]
8b6f8n
Would a fusion reactor be affected by earthquakes?
I couldn't find any sources on which effect earthquakes would have on a reactor. Obviously, the structure could be ruined by a high magnitude, but i was wondering if smaller ones would have any effect on either the safety or efficiency.
askscience
https://www.reddit.com/r/askscience/comments/8b6f8n/would_a_fusion_reactor_be_affected_by_earthquakes/
{ "a_id": [ "dx4efps", "dx4g0bg" ], "score": [ 20, 15 ], "text": [ "Fusion reactors are created using super-cooled magnets that sustain the fusion reaction. Unlike a fission reactor that would go into meltdown if enough damage were to be done because the reaction is self-sustaining, a fusi...
[]
[]
[ [], [] ]
14uvle
In light of today's Connecticut shooting, are mass shootings a fairly recent occurrence?
I understand the old adage "Guns don't kill people, people kill people", but with the easy availability of automatic weapons and plentiful ammunition wouldn't you say this is a 20/21st century evolution? Perhaps there were mass shootings before the 1900's, but maybe it wasn't documented accordingly?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/14uvle/in_light_of_todays_connecticut_shooting_are_mass/
{ "a_id": [ "c7gmyoh", "c7gn3he", "c7gn6ay", "c7goqu5", "c7gsusx", "c7gxk4z" ], "score": [ 9, 4, 20, 14, 3, 6 ], "text": [ "The answer is pretty straightforward. Mass shootings didn't occur when the shooter could only fire one round per minute.", "I thin...
[]
[]
[ [], [], [ "http://books.google.com/books?id=66bBlXMEVYAC&pg=PA131#v=onepage&q&f=false", "http://www.abc.net.au/news/2012-07-22/forensic-psych-on-violent-minds/4146324" ], [], [], [ "http://en.wikipedia.org/wiki/Bath_School_disaster#References" ] ]
5l9lqr
When did Europeans in New Zealand start adopting the practice of Haka from the Maori?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/5l9lqr/when_did_europeans_in_new_zealand_start_adopting/
{ "a_id": [ "dbul9m2" ], "score": [ 15 ], "text": [ "hi! Hopefully some of the NZ specialists will drop by to address this question, but meanwhile, you can get a little start here\n\n* [Why has New Zealand embraced indigenous culture more than other former British Colonies?](_URL_1_) - /u/Cenodoxu...
[]
[]
[ [ "https://www.reddit.com/r/AskHistorians/comments/2ibo8l/why_were_the_maori_so_much_more_successful_at/", "https://www.reddit.com/r/AskHistorians/comments/1daol9/why_has_new_zealand_embraced_indigenous_culture/" ] ]
evgm3
Physics student with a question on Mathematics. Seeking answers from those who work in a physic's capacity everyday.
Keep in mind that I'm planning my education around the assumption that I am going to graduate school when you read this. Currently my Physics undergraduate curriculum only requires Calculus I-III; However, it does have recommendation for those who are planning to go to on to graduate school to also take: Linear Algebr...
askscience
http://www.reddit.com/r/askscience/comments/evgm3/physics_student_with_a_question_on_mathematics/
{ "a_id": [ "c1b9w31", "c1b9xn2", "c1b9xn9", "c1b9xp5", "c1b9y4d", "c1ba910", "c1bblz5" ], "score": [ 2, 7, 13, 5, 3, 2, 3 ], "text": [ "Maybe mathematical statistics (not too sure what they're including in the course though) or real analysis (althou...
[]
[]
[ [], [], [], [], [], [], [] ]
69c7fs
if our feet are naturally arched and used on the flat ground, why do flat shoes ruin arch support?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/69c7fs/eli5_if_our_feet_are_naturally_arched_and_used_on/
{ "a_id": [ "dh5gfsb", "dh5gsv7" ], "score": [ 2, 2 ], "text": [ "The ground our feet evolved to have an arch on wasn't really flat. Floors, sidewalks, and other manmade flat surfaces aren't really natural; they're just easier to sweep.\n\nFeet do best on paths with little rocks or gravel,...
[]
[]
[ [], [] ]
70v8mw
how is it that so many laws and rules are being placed that have their basis rooted in religion, yet the constitution includes the "separation of church and state" ideal?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/70v8mw/eli5_how_is_it_that_so_many_laws_and_rules_are/
{ "a_id": [ "dn63e8g", "dn63fdn", "dn63gkv", "dn63lc2" ], "score": [ 5, 5, 10, 8 ], "text": [ "The separation of church and state simply states that the government cannot support or suppress a specific religion. If you were to not allowed to pass a law that was in line with...
[]
[]
[ [], [], [], [] ]
3fqzbh
What were the lives of Black people in the United Kingdom like during the World Wars?
Want to gain an insight for a book I am writing about a family based on these times but it must be historically accurate alongside a compelling story. What did they do, where did they live? Was there stigma, racism much like today?
AskHistorians
http://www.reddit.com/r/AskHistorians/comments/3fqzbh/what_were_the_lives_of_black_people_in_the_united/
{ "a_id": [ "ctrgn30" ], "score": [ 3 ], "text": [ "side note: did experience differ from Black British and West-Indies/African immigrants? " ] }
[]
[]
[ [] ]
6pt2tc
why is the word "reich" always used in texts about germany, instead of translating it?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6pt2tc/eli5_why_is_the_word_reich_always_used_in_texts/
{ "a_id": [ "dkrzbtv" ], "score": [ 7 ], "text": [ "Because the word \"realm\" (the closest translation) is too general. Even German has multiple words for \"realm of a king\" vs \"realm of an emperor\" vs \"realm of someone else\".\n\nBy saying \"the Nazi realm\", what do we mean? Do we mean Germ...
[]
[]
[ [] ]
af2c42
How do vegetables such as onions, potatoes, and garlic sprout long after harvest?
I'm sure most people have seen some old vegetables begin to sprout in their pantries. Are they still "alive" after harvesting? How do they manage to grow without sunlight once separated from the main plant?
askscience
https://www.reddit.com/r/askscience/comments/af2c42/how_do_vegetables_such_as_onions_potatoes_and/
{ "a_id": [ "edyumjr" ], "score": [ 3 ], "text": [ "Yep, they're still alive!\n\nA potato, carrot or beetroot is essentially a storage container for the plant. Take the carrot - it's a biannual, meaning it has a two-year life cycle where the plant spends the first year of its life gathering energy...
[]
[]
[ [] ]
6xsi9j
Why did the Catholic Church seem to be opposed to lay people reading the Bible?
In [this book](_URL_0_) it is stated that the Church was very hostile to translations of the Bible into the common tongues. And in [this book](_URL_1_) it states that there was a papal bull in 1713 that reading the Bible was not for everyone. Why did the Catholic Church have this view?
AskHistorians
https://www.reddit.com/r/AskHistorians/comments/6xsi9j/why_did_the_catholic_church_seem_to_be_opposed_to/
{ "a_id": [ "dmi9wln", "dmibcfn" ], "score": [ 113, 3 ], "text": [ "Not exactly true. Catholic Church does not opposed lay reading Bible. In fact, reading of the Bible is part of the Mass and regular attendee of the Masses will hear a large portion of both Testaments in span of few years.\...
[]
[ "https://i.imgur.com/MI9jV6n.jpg", "https://i.imgur.com/ZCP0YPW.jpg" ]
[ [ "https://en.wikisource.org/wiki/Canons_and_Decrees_of_the_Council_of_Trent/Second_Part/Condemnation_of_the_Errors_of_Paschasius_Quesnell", "79.It" ], [] ]
3ja1a2
what does canada's recession mean, exactly? what makes it different from the economic recession of the usa a few years back, and what does it mean for the average canadian?
Referring to [this](_URL_0_) article by Yahoo. Thanks for any explanation.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3ja1a2/eli5_what_does_canadas_recession_mean_exactly/
{ "a_id": [ "cunjahb", "cunl0ew", "cunozwz", "cunv7tb", "cupuyco" ], "score": [ 3, 52, 8, 3, 2 ], "text": [ "Just for ref ... America experienced a crash not a recession. Their markets were artificially valued so high that the correction threaten to basically deval...
[]
[ "https://news.yahoo.com/canada-officially-recession-first-half-2015-131114485.html;_ylt=AwrC1ClGpOVVGS0A6AzQtDMD;_ylu=X3oDMTBybGY3bmpvBGNvbG8DYmYxBHBvcwMyBHZ0aWQDBHNlYwNzcg--" ]
[ [], [], [], [], [ "http://www.theatlantic.com/business/archive/2012/09/why-does-canada-have-a-strategic-maple-syrup-reserve/261869/" ] ]
2us43c
If I were in an astronaut suit and I floated through one of Saturn's rings, what would happen to me?
askscience
http://www.reddit.com/r/askscience/comments/2us43c/if_i_were_in_an_astronaut_suit_and_i_floated/
{ "a_id": [ "cobvzms" ], "score": [ 2 ], "text": [ "The rings are actually quite a dense mass of particles so your chance of hitting something massive is very high. If you hit the rings plane at more than (say) ten metres per second you will be in a lot of trouble." ] }
[]
[]
[ [] ]
1r9dom
Do we know if people with depression have a structurally different brain when compared to person without depression.
Please provide references if you can.
askscience
http://www.reddit.com/r/askscience/comments/1r9dom/do_we_know_if_people_with_depression_have_a/
{ "a_id": [ "cdl2rih" ], "score": [ 15 ], "text": [ "Great question! There's been a lot of investigation into biological differences related to depression; much of this work (at least that I'm familiar with) is related to hormonal differences. However, you're asking specifically about structural d...
[]
[]
[ [ "http://www.sciencedirect.com/science/article/pii/S0165032711001480", "http://www.sciencedirect.com/science/article/pii/S0022395610000154", "http://www.ncbi.nlm.nih.gov/pubmed/16616722" ] ]
2filh8
why we can't change our vocal chords to sound exactly like another person, through surgery
Ive tried looking it up. I keep getting things like ("Voice lifts to make your voice sound more female / younger) *First post on here pls dont kill me*
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2filh8/eli5_why_we_cant_change_our_vocal_chords_to_sound/
{ "a_id": [ "ck9kdni" ], "score": [ 2 ], "text": [ "it's not just the cords. it's the shape of the voicebox. the throat. the teeth the cheek. and the muscle control" ] }
[]
[]
[ [] ]