q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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values | url stringlengths 4 132 | answers dict | title_urls list | selftext_urls list | answers_urls list |
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2bteud | Did Africa benefit from European colonization at all? | So, I have to write a paper on how "one could argue that colonialism served a moral purpose and was mutually beneficial to both parties". However, I feel like I don't think I can argue that, especially thinking of how it has affected Africa's situation today... It just seems to me that although colonialism may have h... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2bteud/did_africa_benefit_from_european_colonization_at/ | {
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"If it's an assignment for school and they're telling you what to argue, then you argue that. You don't have to believe something in order to argue for it. Indeed, a decent writer will be able to argue any position, whatever the topic. Examining a... | [] | [] | [
[
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"https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/1890sc_Pears_Soap_Ad.jpg/640px-1890sc_Pears_Soap_Ad.jpg"
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2xmmqv | how can we still see thumbnails for images that are no longer available? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2xmmqv/eli5how_can_we_still_see_thumbnails_for_images/ | {
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"text": [
"I assume you are talking about on reddit? That would be because when you visit the page the system isn't generating the thumbnail all over again, it simply retrieves a cached copy.",
"Say you want to view 1 reddit page w... | [] | [] | [
[],
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5r34o9 | even though i got my flu shot this year, i ended up with the flu, how does this happen and why does it see so common? | Edit: Spelling | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5r34o9/eli5_even_though_i_got_my_flu_shot_this_year_i/ | {
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"text": [
"There are numerous strains of influenza, and they mutate constantly so a vaccine from a year ago won't be effective on the same strain this year.\n\nSo every year Doctors for the Vaccine companies look at what current strains are circulating arou... | [] | [] | [
[]
] | |
3yiqi3 | why do people expect countries to apologize for deeds/crimes that happened decades ago? | Even when the current government had nothing to do with it. Eg: Japan apologizing to South-Korea today for their use of Korean comfort women. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3yiqi3/eli5_why_do_people_expect_countries_to_apologize/ | {
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"text": [
"When you deny a historical event, or endorse a false narrative, you're keeping it relevant. It is important for a country like Turkey to recognize the Armenian genocide not because it would give some great boost to Armenian... | [] | [] | [
[],
[]
] | |
2qikgn | why is the death of women and children considered more tragic in bombings, etc, than men? | It seems kind of morose to me, to put the deaths of women and children head and shoulders above those of men. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2qikgn/eli5_why_is_the_death_of_women_and_children/ | {
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"Because we're still dealing with the aftermath of an era less than a hundred years gone, when women were considered more fragile and helpless.\n\nChildren dyi... | [] | [] | [
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eubhjq | In the movie '1917' the German trenches are depicted as higher in quality compared to British trenches, complete with concrete bunkers and vast underground barracks. Was this usually the case across the entire line? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/eubhjq/in_the_movie_1917_the_german_trenches_are/ | {
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"For the most part, the Germans had much nicer trenches during the war, a reflection of several factors that came into play (possible minor spoilers for *1917*?). \n\nThe first was simply location. Having been the army on the offensive, although... | [] | [] | [
[]
] | ||
7erk9t | If the Nazis were so against communism, why did they choose the color red for their flag? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7erk9t/if_the_nazis_were_so_against_communism_why_did/ | {
"a_id": [
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"text": [
"Because their flag was not a red flag, but a black-white-red one. \n\nThe choice of the Nazi color scheme in their banners was wrapped up in the politics of the German national flag. The flag of the united Germany was the [... | [] | [] | [
[
"http://www.dhm.de/fileadmin/medien/lemo/images/pli12194_en.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/8/86/Flag_of_Germany_%283-2_aspect_ratio%29.svg/900px-Flag_of_Germany_%283-2_aspect_ratio%29.svg.png",
"https://www.zum.de/Faecher/G/BW/Landeskunde/rhein/geschichte/1848/veit.jpg",
... | ||
2bgd35 | why is hitler considered the most evil person ever when there are other leaders who have killed more people? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2bgd35/eli5_why_is_hitler_considered_the_most_evil/ | {
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"Most other leaders have killed their own people. Hitler went outside the family. And he started a world war. And he wanted to eradicate ... | [] | [] | [
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256o6n | How is the Volvo FH's braking system able to stop the vehicle in such a short distance? | _URL_0_
There are a lot of articles that describe the radar system it uses and the automatic braking, but none talk about what actually allows it to stop a fully loaded trailer in such a short distance. | askscience | http://www.reddit.com/r/askscience/comments/256o6n/how_is_the_volvo_fhs_braking_system_able_to_stop/ | {
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"car mechanic here..\nthe force that can be used for the braking system depends on the force the wheel gets pushed onto the road. because of the more weight it produces more friction, and therefore faster braking. as far as i know do they have a n... | [] | [
"http://m.youtube.com/watch?v=ridS396W2BY"
] | [
[]
] | |
36p54b | In the movie, Lincoln, they show the famous debates in the House of representatives arguing back and forth. Today, when I watch CSPAN there are maybe a handful of reps. even present on the floor. When and how did this change over time? | In the movie, the representatives themselves are sitting there fighting with each other. Not their aides or interns, but them. Now I never see video of senators or representatives arguing back and forth. Supposedly it is all done on committees during the work day.
How did this evolve over time? Why did it evolve... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/36p54b/in_the_movie_lincoln_they_show_the_famous_debates/ | {
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"Congressional staffer here. The only time you would see all the members of the House on the floor of the House is when they are voting on a bill, and you'll also see all the members of both houses when there is someone speaking before a joint se... | [] | [] | [
[]
] | |
90ivph | why does yellow seem brighter than other colors? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/90ivph/eli5_why_does_yellow_seem_brighter_than_other/ | {
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"text": [
"It always doesn't. But we don't realize it. Same with orange. It has to do how we cat... | [] | [] | [
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"https://i.imgur.com/yT5FEOc.png"
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"https://en.wikipedia.org/wiki/File:Eyesensitivity.svg",
"http://www.handmadeinpa.net/wp-content/uploads/2012/02/SA_sun_550SA.jpg",
"http://www.h... | ||
f0e0hf | if i'm transferring data from one folder to another in the same ssd, how come the data transfer speed is still so much lower than advertised or tested? | As an example, my Adata XPG S8200 Pro can reach read and write speeds of up to 3500/3000 mb/s and even in testing (using CrystalDiskMark) the supposed speeds are around that range. But when I actually transfer files, even within the SSD, the actual speeds is so much slower? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f0e0hf/eli5_if_im_transferring_data_from_one_folder_to/ | {
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"one of the reasons may be that in order to transfer a file, it's necessary to locate all of its pieces on the drive, then find a new place for them on the drive - probably, not o... | [] | [] | [
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5y8gqs | why do some people find mathematics hard no matter how hard they study? for example geometry. is there a reason behind why students struggle a lot in this subject compare to other classes? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5y8gqs/eli5why_do_some_people_find_mathematics_hard_no/ | {
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"text": [
"Typically the problem is students are taught wrong. This is coming from my wife who changed from math education to analytics after her clinicals and found out just how much bureauc... | [] | [] | [
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8otmoa | how did we discover colour blindness ? | That is : given that we both learned to call the colour of leaves "green" even if the colourblind perceives what I actually qualify as red. How did Dalton knew that what he called green was not what we called green ? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8otmoa/eli5_how_did_we_discover_colour_blindness/ | {
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"text": [
"Colorblindness itself is not necessarily that hard to \"discover.\" The colorblind person is unable to distinguish colors that a non-colorblind person can. \n\nIn your scenario, if you just look at the... | [] | [] | [
[],
[],
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5ksoh5 | Why Did the Soviet Union Emerge from World War Two stronger than Britain? | Pre-war, Britain was considered the stronger power. During the war, Russia lost over 20 million people and had about a fifth of its landmass ravaged by scorched earth policies, first by the retreating red army and later by the Wehrmacht. Britain's losses weren't anywhere near the Soviet Union's, and yet it was the latt... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5ksoh5/why_did_the_soviet_union_emerge_from_world_war/ | {
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"text": [
"As of 1945, Britain, US, and USSR are all considered to be superpowers by modern day understanding. The US was the most powerful, though, because it was left mostly untouched by both world wars. Britain, however, very quickly fell off compared to... | [] | [] | [
[]
] | |
efgg4y | what is the yellow substance that sometimes appears near the corners of our eyelids when we awaken? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/efgg4y/eli5_what_is_the_yellow_substance_that_sometimes/ | {
"a_id": [
"fc074cd"
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"score": [
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"text": [
"Basically, it is normal mucus produced by the conjunctiva, including oil from the meibomian glands, and other debris from the front surface of the eye.\n\nBecause we do not blink during sleep, eye discharge collects in the corners of our eyes an... | [] | [] | [
[]
] | ||
3l46zs | why is melting lead considered "safe" but lead paint deadly? | I'm looking to melt some lead and make little figures. What should I know. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3l46zs/eli5_why_is_melting_lead_considered_safe_but_lead/ | {
"a_id": [
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"text": [
"Lead paint itself is not usually troublesome*, it is the removing of said paint that is the issue. If the paint chips and falls off, collecting those flecks can be troublesome but is also generally safe to do. however sandin... | [] | [] | [
[],
[]
] | |
3xsg4e | why are er called "emergency" when the wait time is literally more than 3 hours? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3xsg4e/eli5why_are_er_called_emergency_when_the_wait/ | {
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"text": [
"Seriously time-sensitive cases are admitted immediately. However, most injuries and conditions are relatively stable; even if you break your arm, as long as you aren't doing stren... | [] | [] | [
[],
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73rl03 | What is the history of Catalan Separatist Movement? Were there any other attempts to gain independence? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/73rl03/what_is_the_history_of_catalan_separatist/ | {
"a_id": [
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"text": [
"The official political movement in the modern Spanish state started in 1922, and since then they have been involved in Spanish politics in a number of ways throughout the 20th century. In the 21st century there have been several other symbolic re... | [] | [] | [
[]
] | ||
4x6hki | why do steel only bullets create sparks? | I was at the gun range for the first time today and noticed that steel core bullets create sparks when striking the metal target, but other non-steel bullets don't.
Why is this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4x6hki/eli5_why_do_steel_only_bullets_create_sparks/ | {
"a_id": [
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"text": [
"The sparks you saw were burning iron fragments. Iron, and some other metals, can shatter into tiny pieces which can spontaneously ignite when they come in contact with air (oxygen). This property is called [Pyrophoricity](_U... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Pyrophoricity"
],
[]
] | |
1m7epr | why is a geisha costume considered racist but equally inaccurate costumes like a ninja is not? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1m7epr/eli5_why_is_a_geisha_costume_considered_racist/ | {
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"text": [
"My guess is how much it relates to the racial background the costume refers to, and whether it portrays that race in a positive or negative light.\n\nEssentially, you need to look at the cultural expectations for the costume. Do we consider the c... | [] | [] | [
[]
] | ||
cc0pz1 | how can the emotional numbness that comes with depression make one physically numb too? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cc0pz1/eli5_how_can_the_emotional_numbness_that_comes/ | {
"a_id": [
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"text": [
"Depression in the literal sense should suggest limited mobility. The lack of oxygenated blood flow and increased heart rate is a likely reason.",
"I’ve grown so numb over the years I can punch any h... | [] | [] | [
[],
[],
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1wlc0j | Correct honorific for a US President with a PhD? | I know that generally one addresses the President of the United States as "Mr. President." However, if one has a doctorate, would it be "Dr. President?" Woodrow Wilson was the only President to hold a PhD, but I am unsure of what his honorific actually was. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1wlc0j/correct_honorific_for_a_us_president_with_a_phd/ | {
"a_id": [
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"text": [
"Its Mr., according to [the good blue book.](_URL_0_) President trumps everything. All the Wilson letters I'm finding online are using Mr. to address him as well, [like this one.](_URL_1_) \n\nWe have a few Wilson letters in the archives actually... | [] | [] | [
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"http://teachingamericanhistory.org/library/document/letter-to-woodrow-wilson-regarding-us-neutrality/"
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] | |
79guz8 | what makes olive oil so healthy and sunflower oil unhealthy? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/79guz8/eli5_what_makes_olive_oil_so_healthy_and/ | {
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"text": [
"Sunflower oil isn't unhealthy at all. It's high in calories, but no more so than olive oil. \n\nThey have different uses. Olive oil is considered more healthy because it can be used to replace animal fat in savory dishes, ... | [] | [] | [
[],
[]
] | ||
oibwq | Does putting a sharp knife in the dishwasher really make it duller? | If so, would the effect be any greater than washing the knife by hand? | askscience | http://www.reddit.com/r/askscience/comments/oibwq/does_putting_a_sharp_knife_in_the_dishwasher/ | {
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"text": [
"Blacksmith here: \nThe heat of your dishwasher has no effect on your knives; however, it may affect the handles if they are wooden. To affect the hardness (temper) of steel, y... | [] | [] | [
[],
[],
[],
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] | |
6lzirg | how does playing by ear work? | Someone told me to 'just play the chords'. But how does that work? When listening to a song, how are you suppose to know which chord is which? Because when I hear a song, say twinkle twinkle, I think, the second twinkle is higher than the first one, but that's about it. I couldn't possible try every variation can I unt... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6lzirg/eli5_how_does_playing_by_ear_work/ | {
"a_id": [
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"text": [
"A song follows a scale(99% of the time) which is basically a set of specific notes. This eliminates already a lot of notes you aren't supposed to try. For example a C major scale doesn't use black keys on a piano.\n\nA lot of pop songs will usual... | [] | [] | [
[]
] | |
25lg4t | Help with relating fundamental mechanics to calculus? | I came to the realization the other day that the rote F=ma so ubiquitous in primary school is more relevant when represented as
F = M (dV/dt) and therefore, F = M (dP/dt)
I'm struggling to understand why kinetic energy is 1/2 mv2, which is clearly the integral of momentum w/ respect to velocity, as well as why energ... | askscience | http://www.reddit.com/r/askscience/comments/25lg4t/help_with_relating_fundamental_mechanics_to/ | {
"a_id": [
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2
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"text": [
"The work done is the integral of force over distance, and this can be transformed into an integral of momentum over velocity: F dx = ma dx = m (dv/dt) dx = m dv (dx/dt) = mv dv\n\nThe point is that if force only depends on ... | [] | [] | [
[],
[]
] | |
lutqx | why there is such violence and conflict in the caucasus? | I know there has been lots of conflict there for a long time, but why? Is it like a political angst, or are they a repressed minority or what? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/lutqx/eli5_why_there_is_such_violence_and_conflict_in/ | {
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"text": [
"First, it's a very mountainous area. Extremely mountains regions in the old world are often inhabited by strikingly different ethnic groups in close proximity. The reason is pretty obvious: if it was hard to get from one v... | [] | [] | [
[],
[]
] | |
812d3e | Did people know about things like schizophrenia 500 years ago? |
Did a person who said they could hear angels or see monsters get believed? Have there been any documented examples of decisions made because someone was having a schizophrenic episode. Like sending an army because an angel told him to, but at closer look said person more then likely suffered from something.
| AskHistorians | https://www.reddit.com/r/AskHistorians/comments/812d3e/did_people_know_about_things_like_schizophrenia/ | {
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"This is kind of tough to answer because overall medieval and Early Modern people were more open to the idea of visions and benign spiritual revelations than we might be now. For that reason it's next to impossible to say if the experience that a ... | [] | [] | [
[
"http://www.indiana.edu/~dmdhist/joantrials.html"
]
] | |
2tvu9f | Given the misogyny of the Middle Ages and Renaissance, why were concepts like justice often personified by women? | Such as the two angels in the *[Allegory for Good Government](_URL_0_).*
Was this because of the Greco-Roman muses? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2tvu9f/given_the_misogyny_of_the_middle_ages_and/ | {
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"text": [
"Your question postulates an argument, which is that the Middle Ages and Renaissance were 'misogynistic', by which I assume you mean the people of the time. What exactly do you mean by misogyny? ",
"I can't speak to the... | [] | [
"http://evergreen.loyola.edu/brnygren/www/Honors/goodgov.jpg"
] | [
[],
[]
] | |
2vdl6f | Could an increase in brightness as an exoplanet orbits in front of it's star indicate life? | Alternatively, do we give off enough light at night to be detected by a civilization using the same level of technology we currently have? | askscience | http://www.reddit.com/r/askscience/comments/2vdl6f/could_an_increase_in_brightness_as_an_exoplanet/ | {
"a_id": [
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"text": [
"If the star increases in brightness as the planet moves in front of the star, that means that the planet's surface is brighter than the star itself. This is not possible for a planet.\n\nThe total power output of a planet in... | [] | [] | [
[],
[]
] | |
x0p3u | why do stitches work for sewing up skin wounds? what is the limit? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/x0p3u/eli5_why_do_stitches_work_for_sewing_up_skin/ | {
"a_id": [
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"text": [
"Stitches just hold your skin together nice and close so your body can heal naturally. There's really no limit, but there are cuts that are more difficult to stitch, like when portions of skin are missing.\n\nAlso, they have ... | [] | [] | [
[],
[]
] | ||
nk9i7 | If you shine a torch on a flame, does it create a shadow? Why/why not? | I tried it myself but couldn't see anything, but it was hardly a highly scientific experiment. | askscience | http://www.reddit.com/r/askscience/comments/nk9i7/if_you_shine_a_torch_on_a_flame_does_it_create_a/ | {
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"text": [
"It does not create a shadow in the typical sense that light is blocked by the fire, however the increased temperature of the air that co... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
2g0c5p | How and when did the British get there stereotype of being gentleman and all that | It must have happend some when after the middle ages. But I am just wondering how it came to be. That the most well known fancy tea lovers where viewed as that. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2g0c5p/how_and_when_did_the_british_get_there_stereotype/ | {
"a_id": [
"ckegyyu"
],
"score": [
3
],
"text": [
"Other people will be able to give better answers about how this trope entered the rest of the world, but hopefully I can explain where it comes from within Britain.\n\nThe concept of 'gentleman' is a very old one and one which is murky in origin.... | [] | [] | [
[
"https://en.wikisource.org/wiki/Page:EB1911_-_Volume_11.djvu/625",
"http://nfs.sparknotes.com/shrew/page_94.html"
]
] | |
dk06c3 | for what reason do banks not employ two-factor authentication to ensure the authenticity of transactions? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dk06c3/eli5_for_what_reason_do_banks_not_employ/ | {
"a_id": [
"f49jlhy"
],
"score": [
3
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"text": [
"Some banks do offer 2FA tokens. \n\nMy mother is an administrator for a small business and has one on her keyring for all work transactions. The administrator for a small business that I work for has one on her keyring for work transactions also.... | [] | [] | [
[]
] | ||
4voty6 | how does a ranked voting system work? | I keep hearing that it is better the USA's current system of voting but how so? And how would it help eliminate the 2 party system? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4voty6/eli5_how_does_a_ranked_voting_system_work/ | {
"a_id": [
"d605iis",
"d605nlx",
"d60em04"
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"score": [
2,
10,
2
],
"text": [
"The ranked voting system has a voter rank all candidates in order of preference. If a candidate gets over 50% of the vote they win. If not, the last place candidate is eliminated and the 2nd ranked can... | [] | [] | [
[],
[],
[
"http://www.bbc.co.uk/news/politics/constituencies/N06000003"
]
] | |
8lz7xk | how is this possible or where is the math wrong? | (1/3=0.33333)
(2/3=0.66666)
(0.6666+0.3333=0.9999)
(1/3+2/3=1) | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8lz7xk/eli5_how_is_this_possible_or_where_is_the_math/ | {
"a_id": [
"dzjl77m",
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"score": [
26,
2,
2,
4,
2,
2,
2,
4
],
"text": [
"1/3 does not equal 0.33333, it equals 0.3333333333... forever.\n\nSame deal with 2/3. It eq... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[]
] | |
1spv82 | what exactly are stock indexes (djia, nasdaq, s & p500) and how are their values calculated? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1spv82/eli5what_exactly_are_stock_indexes_djia_nasdaq/ | {
"a_id": [
"ce006m5"
],
"score": [
3
],
"text": [
"Dow Jones Industrial Average is a stock market index created by Wall Street Journal editor and Dow Jones & Company co-founder Charles Dow. The industrial average was first calculated on May 26, 1896. The Industrial portion of the name is large... | [] | [] | [
[]
] | ||
2yu8yd | If black holes bend space around them how do we measure their size? | I mean is it some 'normal' equivalent in low gravity space? I know we don't know what is below the horizon, but again what does mean 'the horizon radius' ? | askscience | http://www.reddit.com/r/askscience/comments/2yu8yd/if_black_holes_bend_space_around_them_how_do_we/ | {
"a_id": [
"cpdc0w9"
],
"score": [
5
],
"text": [
"The answer is that we don't measure the size, or at least we never have that I'm aware of. Instead, we infer the size from the mass. The equation we use is a solution to Einstein's General Relativity field equations and mathematically marks the p... | [] | [] | [
[
"http://astronomy.swin.edu.au/cosmos/S/Schwarzschild+Radius"
]
] | |
1kl62v | Any notable memoirs written by SS or Nazi party leaders or German armed forces who survived WWII and lived to look back on the experience? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1kl62v/any_notable_memoirs_written_by_ss_or_nazi_party/ | {
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"score": [
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8,
3,
2,
2
],
"text": [
"I'd guess that Inside the Third Reich by Albert Speer is probably the most notable book that fits what you're looking for. I recall it being a good read when... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Hans-Ulrich_Rudel"
],
[
"http://en.wikipedia.org/wiki/Goebbels_Diaries"
],
[],
[]
] | ||
17d2cg | How often were tank accidents? (Not lost to enemy fire or engine malfunctions), How damaging would they have been and did they have any effect on the war effort? | I was wondering because of the amount of automobile accidents that occur In the united states and that tanks aren't much different from standard vehicles. I was thinking specifically WWII but any sort of armored vehicle accidents would be interesting to know about. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/17d2cg/how_often_were_tank_accidents_not_lost_to_enemy/ | {
"a_id": [
"c84dic1"
],
"score": [
2
],
"text": [
"So, you don't care about normal mechanical breakdowns due to wear and tear, but are looking for incidents like [this](_URL_2_) [this](_URL_1_) [this](_URL_0_[term]=Tank%20accident & filters[primary]=images & filters[secondary]=videos & sort=1 & o... | [] | [] | [
[
"http://media.beta.photobucket.com/user/sadysadycool/media/tank-accident.jpg.html?filters",
"http://4.bp.blogspot.com/_P75nQNhmdtE/TEc3IfkRBMI/AAAAAAAAAuY/KOoRxpInZxk/s1600/fail_tank_barrel.jpg",
"http://media.desura.com/cache/images/groups/1/3/2954/thumb_940x3000/merkava.jpg",
"http://media.beta.... | |
iozn5 | If the Sun is a ball of gas/plasma, why does it have a
defined spherical shape? | I know in school they always taught us that liquids and gases take the shape of their container. The Sun doesn't seem to have a "container", yet it has a shape (sphere). | askscience | http://www.reddit.com/r/askscience/comments/iozn5/if_the_sun_is_a_ball_of_gasplasma_why_does_it/ | {
"a_id": [
"c25hoyo",
"c25hp39",
"c25hp42",
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"score": [
6,
5,
14,
2
],
"text": [
"all of the gas/plasma wants to get as close together as possible due to the influence of gravity (everything falls toward the center), which forces the gas/plasma into the most co... | [] | [] | [
[],
[],
[],
[]
] | |
679w4b | why does san francisco, home to an industry known for literally inventing telecommuting, suffer from so much location-based demand when the employees could be living anywhere? | Why is it that tech workers need to be in (or close to) San Francisco to work for companies like Google, Oracle, LinkedIn, Adobe, etc. when those companies could embrace telework and hire people from anywhere in the US/world? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/679w4b/eli5_why_does_san_francisco_home_to_an_industry/ | {
"a_id": [
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"score": [
6,
13,
2
],
"text": [
"San Francisco != Silicon Valley\n\nSan Jose is really the true hub of Silicon Valley, and is about 50 miles away from San Francisco. Most tech workers live there instead of paying for the prestige of ... | [] | [] | [
[],
[],
[]
] | |
1q3e42 | Who is, and what did the ANC do fighting the Apartheid in South Africa? | I am to write a report on apartheid (15-20 pages), and wanted to see if there are any of you with good insight of what happened back then and the ANC's influence. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1q3e42/who_is_and_what_did_the_anc_do_fighting_the/ | {
"a_id": [
"cd8tz62"
],
"score": [
11
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"text": [
"Okay, let's start at the beginning.\n\nOn 8 January 1912, the SANNC was established in Bloemfontein, an organisation that sought to destroy an inter-ethnic enmities and unite the African population of South Africa, and can be seen as the first s... | [] | [] | [
[
"http://search.ebscohost.com.ezproxy.soas.ac.uk/login.aspx?direct=true&AuthType=cookie,ip,url,shib&db=buh&AN=77510102&site=ehost-live",
"http://dx.doi.org/10.1080/03057070.2011.592659",
"http://search.ebscohost.com.ezproxy.soas.ac.uk/login.aspx?direct=true&AuthType=cookie,ip,url,sh... | |
gjm0j | I'd just like to take a second to thank the awesome community on this subreddit. | A week ago, scrolling through endless rage comics and pictures of cats I had started to lose faith in this site. But this subreddit is the most entertaining, informative and helpful I've ever seen by *far*. It's totally revived the site for me, and I'm genuinely excited to see what it has to offer when I get home fro... | askscience | http://www.reddit.com/r/askscience/comments/gjm0j/id_just_like_to_take_a_second_to_thank_the/ | {
"a_id": [
"c1o1lbm",
"c1o24tc"
],
"score": [
4,
2
],
"text": [
"Totally agree. Not a day goes by that I don't read this subreddit. So much stuff to learn!",
"AskScience is one of my favourite parts of reddit, but I do like a good rage comic and cat picture."
]
} | [] | [] | [
[],
[]
] | |
5sx1s1 | why do most people from latin american countries like argentina and uruguay look caucasian while their neighbors like chile and paraguay look more hispanic? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5sx1s1/eli5_why_do_most_people_from_latin_american/ | {
"a_id": [
"ddijb41",
"ddilz5a"
],
"score": [
2,
6
],
"text": [
"\"Hispanic\" is an ethnicity, it refers to culture. You're conflating it with race.\n\nRacially, the majority of Latin Americans are a cross between native peoples and Europeans. Some regions have more European blood in them... | [] | [] | [
[],
[]
] | ||
rk5f0 | Big Rip and Dark Energy | It is my understanding that dark energy causes space to expand. And that expansion is a set amount per cubic meter. This means that the expansion is exponential. The expansion per cubic meter doesn't change however. Is this correct?
If it is, how would a big rip occur? It seems even though the universe was expandi... | askscience | http://www.reddit.com/r/askscience/comments/rk5f0/big_rip_and_dark_energy/ | {
"a_id": [
"c46h7vz"
],
"score": [
3
],
"text": [
"The constant rate of exponential expansion of space would not give rise to a \"big rip\". A big rip would require an *increasing* rate of exponential expansion. \n\nIf that were the case – for example if the \"cosmological constant\" were increas... | [] | [] | [
[]
] | |
5lb2eh | Do you hear a sonic boom every time your mach speed increases (i.e. accelerating from mach 2 to mach 3), or only as you reach mach 1? | askscience | https://www.reddit.com/r/askscience/comments/5lb2eh/do_you_hear_a_sonic_boom_every_time_your_mach/ | {
"a_id": [
"dbuvkbf",
"dbv05sb",
"dbufif8",
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"score": [
6,
2,
149,
14
],
"text": [
"Shockwave is like a boat wake. At low speeds, waves move outward in front of the boat, but past some critical speed, all the waves combine to form a front. Increasing past this... | [] | [] | [
[],
[],
[],
[
"https://www.youtube.com/watch?v=-Zu5SGllmwc"
]
] | ||
37wala | Roughly speaking, is salt evenly distributed in ocean water? | Disregarding things like salt stuck in rocks at the bottom of the ocean. Thank you for replying. | askscience | http://www.reddit.com/r/askscience/comments/37wala/roughly_speaking_is_salt_evenly_distributed_in/ | {
"a_id": [
"crqit65",
"crqn2qa",
"crqnvim",
"crqqh1l"
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"score": [
35,
3,
3,
11
],
"text": [
"I would disagree with the previous two posters. The salinity of the ocean at the surface, shown [here](_URL_1_), is not uniformly distributed. The average salinity is 35 PSU (whi... | [] | [] | [
[
"http://www.windows2universe.org/earth/Water/images/salinity_depth_jpg_image.html",
"https://8927d5bd-a-959ae04d-s-sites.googlegroups.com/a/salinityremotesensing.ifremer.fr/public/sea-surface-salinity/salinity-distribution-at-the-ocean-surface/annual_clim.jpg?attachauth=ANoY7codP02AFaShjdAwmd8un2GjEMGr60o... | |
4un1k5 | How do centipedes/millipedes control all of their legs? Is there some kind of simple pattern they use, or does it take a lot of brainpower? | I always assumed creepy-crawlies were simpler organisms, so controlling that many organs at once can't be easy. How do they do it?
EDIT: Typed insects without even thinking. Changed to bugs.
EDIT 2: You guys are too hard to satisfy. | askscience | https://www.reddit.com/r/askscience/comments/4un1k5/how_do_centipedesmillipedes_control_all_of_their/ | {
"a_id": [
"d5r51bd",
"d5rhpn1"
],
"score": [
4112,
128
],
"text": [
"It's a distributed control system. Each segment has a ganglion that acts as a small \"brain\" to control its pair of legs. The centipede brain sends a go signal and the ganglion handles the motion, coordinating its timi... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Central_pattern_generator"
],
[]
] | |
3kx9vr | that feeling in my teeth after drinking a few sips of coke or pepsi? | I mean obviously those drinks are terrible for your teeth, but are the results so instant that you can feel it after 3 sips?
And the feeling wears off after like ten seconds. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3kx9vr/eli5_that_feeling_in_my_teeth_after_drinking_a/ | {
"a_id": [
"cv194nt"
],
"score": [
10
],
"text": [
"You mean the \"skin on your teef\" feeling?"
]
} | [] | [] | [
[]
] | |
u9wbs | How effective is a human body at stopping a grenade blast? | askscience | http://www.reddit.com/r/askscience/comments/u9wbs/how_effective_is_a_human_body_at_stopping_a/ | {
"a_id": [
"c4tjjvy",
"c4tkugu"
],
"score": [
14,
2
],
"text": [
"From mythbusters.\n\n > *A hero could save his buddies by … covering a grenade with his own body.*\n > \n > **confirmed**\n > \n > During the control test, the Mythbusters detonated a grenade with no obstacles with several ... | [] | [] | [
[],
[]
] | ||
7r96u2 | how do demolition companies knock down buildings in cities with dynamite without destroying other buildings and having all the rubble fall in one place? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7r96u2/eli5_how_do_demolition_companies_knock_down/ | {
"a_id": [
"dsv4gb1",
"dsv4kmr",
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"score": [
6,
2,
2
],
"text": [
"They carefully calculate and simulate the position and strength of the explosives. It's placed to destroy main holding structures from the middle so that the building would collapse on itself, with outs... | [] | [] | [
[],
[],
[]
] | ||
rkwzs | Are nitrates bad for you? Why or why not? | I hear a lot of people say that they are bad and to avoid them, and I see a lot of products that are "nitrate-free" - just curious, thanks! | askscience | http://www.reddit.com/r/askscience/comments/rkwzs/are_nitrates_bad_for_you_why_or_why_not/ | {
"a_id": [
"c46n3k0"
],
"score": [
3
],
"text": [
"Well, they're not terribly bad in-themselves (and to a small extent occur naturally in food and in your body). But they can react and form carcinogenic [nitrosamines](_URL_1_) in your stomach, either in your stomach, or if they're heated up. So t... | [] | [] | [
[
"http://books.google.se/books?id=tcMF_m09GtMC&lpg=PA42&ots=bw5PemKp4Z&pg=PA48#v=onepage&q&f=false",
"http://en.wikipedia.org/wiki/Nitrosamine"
]
] | |
15npil | why does my vision turn purple when i press my palms against my eyes? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/15npil/why_does_my_vision_turn_purple_when_i_press_my/ | {
"a_id": [
"c7o41k8"
],
"score": [
4
],
"text": [
"Often times our eyes perceive light even though there isn't any; these phenomena are dubbed [phosphenes](_URL_0_). When you press against your eyes or rub them, you manually stimulate the optic nerve cells, causing a [pressure phosphene](_URL_0_#... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Phosphene",
"http://en.wikipedia.org/wiki/Phosphene#Mechanical_stimulation",
"https://youtu.be/34NgoKfrG2k"
]
] | ||
6h2y2q | How are MODERN logic gates constructed? | Beginning to realize that the majority of what I am being taught at my university is outdated, not real, or a straight up lie, I recently began wondering about how modern logic gates work; and if transmission gates play a huge part in them. Surely the logic gates, flip flops, multiplexers, and other basic constructs th... | askscience | https://www.reddit.com/r/askscience/comments/6h2y2q/how_are_modern_logic_gates_constructed/ | {
"a_id": [
"div955x",
"divp8zo"
],
"score": [
9,
3
],
"text": [
"I don't think there has been any great breakthroughs. CMOS logic became dominant in the 1980s, and it's still used, the gates have just gotten a lot smaller. There is a Wikipedia page about technology [beyond CMOS](_URL_0_):... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Beyond_CMOS"
],
[
"https://en.wikipedia.org/wiki/MOSFET#Applications",
"https://en.wikipedia.org/wiki/CMOS",
"https://en.wikipedia.org/wiki/Beyond_CMOS"
]
] | |
3gocip | how did companies such as columbia house, that offered cd's and dvd's for pennies, stay in business for so long? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3gocip/eli5_how_did_companies_such_as_columbia_house/ | {
"a_id": [
"ctzyczv",
"ctzyfcu",
"ctzynpr"
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"score": [
3,
2,
2
],
"text": [
"So, just to be clear, based on what you describe in your post I am pretty sure you committed [mail fraud.](_URL_0_) Not a judgment, just a note that your nearly free CD's may have come with a sizable ri... | [] | [] | [
[
"https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=mail%20fraud%20penalty"
],
[],
[]
] | ||
kht4r | If I dropped a penny in the ocean over the Mariana Trench, how long would it take for it to hit the bottom? | /r/askreddit directed me to you guys. I'm curious to know, but I'm not really scientifically/mathematically inclined. Is there a way to know the rate of a penny falling through water? Would the pressure at those depths do anything to the rate? Or would the penny even make it to the bottom intact with all the pressu... | askscience | http://www.reddit.com/r/askscience/comments/kht4r/if_i_dropped_a_penny_in_the_ocean_over_the/ | {
"a_id": [
"c2kcuwz",
"c2kcw5w",
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"c2kdrob",
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"c2keekt",
"c2keiow",
"c2kf7gm",
"c2kfodv",
"c2kjlit",
"c2kcuwz",
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"c2kdrob",
"c2kdyq6",
"c2keb5r",
"c2keekt",
"c2keiow",
"c2kf7gm",
"c... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/MythBusters_(2003_season)#Penny_Drop",
"http://en.wikipedia.org/wiki/MythBusters_\\(2003_season\\)#Penny_Drop"
],
[],
[],
[
"http://www.whoi.edu/page.do?pid=10076",
"ftp.whoi.edu/pub/users/jason2/J2_ROV_Design/Referenc... | |
1mv5oa | What happened to german pilots who were shot down over Britain? | Did they have parachutes? Did they kill themselves? Were they imprisoned and interrogated? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1mv5oa/what_happened_to_german_pilots_who_were_shot_down/ | {
"a_id": [
"ccd1q5r"
],
"score": [
2
],
"text": [
"By WWII, most Airforces issued their pilots with parachutes (as opposed to WWI, where they often didn't because it was feared that the pilot would abandon his expensive machine far too quickly). The Luftwaffe was no exception, so German pilots co... | [] | [] | [
[]
] | |
5s9fyo | Back in the time of sword and bow, did generals actually fight in the front lines? | Movies always have leaders and generals leading the charge into battle in the very front of their army, but this just doesn't seem very smart. You'd think that if they would do this, then they'd get killed early on in the battle. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5s9fyo/back_in_the_time_of_sword_and_bow_did_generals/ | {
"a_id": [
"dddjw3n"
],
"score": [
39
],
"text": [
"Speaking for Classical Greece here, which is more like the time of the spear, but anyway: yes, they absolutely did. And yes, this means they frequently got killed early on in the battle. When Plutarch wrote the biography of the 4th century BC ge... | [] | [] | [
[]
] | |
6vsfv6 | Are all people who have names related to British nobility (i.e. Lancaster, Windsor, Murray) actually distantly related to those families, or did some peasants occasionally adopt more prestigious surnames in later centuries? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6vsfv6/are_all_people_who_have_names_related_to_british/ | {
"a_id": [
"dm2q6iy",
"dm2qhmd"
],
"score": [
2,
5
],
"text": [
"Maybe this can help you. I just do not know anything about rise ad spread of surnames from the UK, but those you cite seem to be just toponymics: they relate to the place they come from. This is only a guess; I mean, it coul... | [] | [] | [
[],
[]
] | ||
819cm5 | what is past the borders of space? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/819cm5/eli5what_is_past_the_borders_of_space/ | {
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5,
2,
2,
2
],
"text": [
" > I know space is expanding in all directions but whats past that?\n\nThat isn't a meaningful question. Space appears to be infinite in extent and simply be... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
1gt37i | Is there any reason the buffalo wasn't used as a beast of burden by Native Americans? They were similarly sized to oxen? | I've read in r/askhistorians that the wheel did not take off in the America's because of a difference in infrastructure and lack of large terrestrial animals to use as beasts of burden. why not use the buffalo? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1gt37i/is_there_any_reason_the_buffalo_wasnt_used_as_a/ | {
"a_id": [
"canljdt"
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"text": [
"Buffalo have a tendency to be moody and often unpredictable. They attack without warning for seemingly no reason. Their horns and sheer size poses a threat to anyone near by. Because of their behavior, domesticating a buffalo would be difficult... | [] | [] | [
[]
] | |
1pm36c | Is there a secular explanation for the longevity of the Jewish faith? Why has it outlived countless other faiths when they don't evangelize, never (that I know of) had an empire, and always seem to be the popular people to persecute no matter where they go? | How does a national religion survive long stents without a nation and two different destructions of their temple? What made this seemingly small faith outlive the Egyptian, Greek, and Roman religions? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1pm36c/is_there_a_secular_explanation_for_the_longevity/ | {
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[],
[],
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"http://en.wikipedia.org/wiki/Loans_and_interest_in_Judaism#In_Christianity"
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642kl3 | why does cutting the taxes of individual business owners create more jobs? why is personal income tied to a briskness' decision to hire? | This is NOT for political debate about the merits of tax cuts for the rich. I always hear things like "If you cut the taxes of the 1%, they will create more jobs." But aren't their individual wealth/income/taxes separate from anything they would do in a business setting? If a CEO making $10m a year gets an extra $1m "b... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/642kl3/eli5_why_does_cutting_the_taxes_of_individual/ | {
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"By a _very_ wide margin, most businesses are small businesses with one or two owners. These are individuals whose job IS owning/running their business, which means that their income is the profit of the... | [] | [] | [
[],
[],
[]
] | |
19geup | how are internet providers able to stay a monopoly when the internet is supposedly open? | I understand the basics of tcp/ip, dns, and how the interconnection works. What I do not understand is how it's all tied together. Say I want to open my own ISP. Where do I basically send my customer's data to assuming I don't want to go through an established provider as a subsidiary? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/19geup/how_are_internet_providers_able_to_stay_a/ | {
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"You have to go through an established provider. You actually have to go through *every* established provider, either directly or indirectly; their subscribers are part of the Internet, and your customer... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Internet_exchange_point"
],
[
"http://en.wikipedia.org/wiki/Telecommunications_Act_of_1996"
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] | |
hjqql | Question about predictions about weather vs. climate | Even short-term weather predictions are notoriously unreliable - [Freaknomics](_URL_0_) has an interesting discussion about it here, though if I had the background to evaluate its validity I wouldn't be here asking this question. It sounds kosher from a purely anecdotal standpoint as well - even two days ago the foreca... | askscience | http://www.reddit.com/r/askscience/comments/hjqql/question_about_predictions_about_weather_vs/ | {
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"I am not a climate scientist, but there is an analogy that I use to make sense of it myself. Pretend that you have a coin that you are flipping and it can be heads or tails. You know that there is a 5... | [] | [
"http://www.freakonomics.com/2008/04/21/how-valid-are-tv-weather-forecasts/"
] | [
[],
[],
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"http://www.ecmwf.int/products/forecasts/guide/user_guide.pdf"
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3carx5 | the over 18 age confirmation on adult websites? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3carx5/eli5_the_over_18_age_confirmation_on_adult/ | {
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"It's essentially just a way to cover their asses. It's a liability. Say little 15 year old Jimmy's mom catches him whacking off to pornhub, and decides to sue pornhub, pornhub can say \"Look, we posted the warning and he decided to click that he ... | [] | [] | [
[]
] | ||
4j5y12 | why are government run banks considered "bad"? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4j5y12/eli5_why_are_government_run_banks_considered_bad/ | {
"a_id": [
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"text": [
"They are not considered \"bad\" because the government runs them, they are run by the government because they have gone \"bad\" (i.e. no longer capable of covering their financial obligations towards customers that have placed money with them). M... | [] | [] | [
[]
] | ||
f42fq5 | How is fresh water created on remote islands surrounded by the salty ocean water? In other words how did ancient societies get enough drinking water in Oceania? Do the islands just have to be big enough? | I was just watching a video about the Mahjapahit(?) and they mentioned how a certain island was important for its drinking water. What does that mean? What process occurs to let some islands have fresh water? | askscience | https://www.reddit.com/r/askscience/comments/f42fq5/how_is_fresh_water_created_on_remote_islands/ | {
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"Freshwater isn’t so much created as collected on islands.\n\nThe term you are looking for is “freshwater lens”.\n\nEssentially, if conditions are right, r... | [] | [] | [
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[],
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2583kt | how does an army capture a city? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2583kt/eli5_how_does_an_army_capture_a_city/ | {
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"Not entirely sure but something about controlling the roads, local government and defeating whatever opposition there is.",
"You point a gun at the guy or guys that used to mak... | [] | [] | [
[],
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1nmiqb | Has a state ever been born without violence accompanying it? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1nmiqb/has_a_state_ever_been_born_without_violence/ | {
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"This is an intriguing question in the anthropological sub-field of state formation. Usually you have three types of violence involving states:\n\n1. Violence involving external states or empires\n2. Vi... | [] | [] | [
[],
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2x8i1f | How do black holes overcome the Pauli Exclusion principle? | When stars undergo gravitational collapse, those with remnants over the Tolman–Oppenheimer–Volkoff limit will collapse to black holes regardless off the degeneracy pressure from the Pauli Exclusion principle.
How is the exclusion principle broken in this case? Isn't it a fundamental law of nature? | askscience | http://www.reddit.com/r/askscience/comments/2x8i1f/how_do_black_holes_overcome_the_pauli_exclusion/ | {
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"We'd have to get a ... | [] | [] | [
[],
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"http://en.wikipedia.org/wiki/Electron_degeneracy_pressure"
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],
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"http://physics.stackexchange.com/questions/93988/does-black-hole-formation-contradict-the-pauli... | |
4a7yhb | how is it possible for there to be so many blonde people when it is a recessive trait? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4a7yhb/eli5_how_is_it_possible_for_there_to_be_so_many/ | {
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"text": [
"To make it clearer I guess they should change \"blondes have more fun\" to \"blondes have more sex\"",
"Recessiveness means that the trait is less likely to be expressed, not ... | [] | [] | [
[],
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"http://www.eupedia.com/europe/neanderthal_facts_and_myths.shtml"
],
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"https://en.m.wikipedia.org/wiki/Sexual_selection"
]
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1czwfg | TIL that there were around the same population of people between the Native Americans and Europe in 1400s, only to be wiped out by dieases. What stopped them from 'discovering' Europe? | Had there been any major contact at all or exploration from the native american side? (excepting the vikings, etc.) | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1czwfg/til_that_there_were_around_the_same_population_of/ | {
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"Unlike European nations, the Native American nations did not have the motive to cross an ocean or ships that could reliably make the trip across the Atlantic. Those two things are, in my opinion, related. With the exception of the Taino trading s... | [] | [] | [
[]
] | |
26lsg4 | how do software developers make an executable that works on most hardware? | When I compile a program in say, C, I have to compile it specifically for my hardware. How does the executable in a program or game work for most pieces of hardware (under the same OS)? Is it just a massive collection of many different compilations? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/26lsg4/eli5_how_do_software_developers_make_an/ | {
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"With a modern OS, programs seldom need to directly interface the hardware. The software talks to the OS and the OS keeps track of how to control the hardware.\n\nThe program just needs to be compiled down to instructions the... | [] | [] | [
[],
[]
] | |
4a03jr | Does anyone know when this Confederate bill is from and roughly what the value would be? | My cousin found [this Confederate $1 bill](_URL_0_) and wants to know more about it.
Can anyone here help? Or tell me which sub-reddit would be better? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4a03jr/does_anyone_know_when_this_confederate_bill_is/ | {
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"It is a modern novelty item. On a legitimate bill there would be several different kinds of ink, overlaying one another. The signatures that would make this bill legal tender would be a different color, or would be lighter/darker than the backg... | [] | [
"http://imgur.com/n6rELFo"
] | [
[]
] | |
1894b8 | Why is glass so chemically stable? Why are there so few materials that cannot be handled or stored in glass? | askscience | http://www.reddit.com/r/askscience/comments/1894b8/why_is_glass_so_chemically_stable_why_are_there/ | {
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"[From Wikipedia:](_URL_1_)\nWhile fused quartz (primarily composed of SiO2) is used fo... | [] | [] | [
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"https://en.wikipedia.org/wiki/Standard_enthalpy_change_of_formation",
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"http://www.reddit.com/r/askscience/comments/1894b8/why_is_glass_so_chemically_stable_why_are_there/c8d3cv4",
"http://www.reddit.com/r/askscience/comments/1894b8/why_is_glass_so_ch... | ||
u6ox2 | eli how coal burns if it's mostly carbon, but ash is what's left after something burns, and it's mostly carbon, too. | Oh, and explain the same thing with charcoal, too. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/u6ox2/eli_how_coal_burns_if_its_mostly_carbon_but_ash/ | {
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"A lump of coal not only contains carbon, but other elements and compounds as well.\n\n\nCoal burns as it heats up and the carbon reacts with oxygen, creat... | [] | [] | [
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cx2wij | how do 'grow your own crystal' kits work? | What are they made of? How long will they last? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cx2wij/eli5_how_do_grow_your_own_crystal_kits_work/ | {
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"They are just some salt, colours and instructions. Making a crystal isn't hard, polar molecules that drop out if solution tend to stick together in a rigid structure, a crystal. So you just need to diss... | [] | [] | [
[],
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2hlvqn | why ios update is 75mb but requires 1.5gb to install? | [EDIT]
Woah. Thanks guys for al the answers! I've never thought I would learn all those things about updates. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2hlvqn/eli5_why_ios_update_is_75mb_but_requires_15gb_to/ | {
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3pohmu | Were Cathedrals open to poor People in the middle ages? | Just visited Notre Dame in Paris. Now I wonder. Were these cathedrals open to everyone in the middle ages? Could every poor person enter, stay dry and warm during mass? Or was this andere upper Class privilege? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3pohmu/were_cathedrals_open_to_poor_people_in_the_middle/ | {
"a_id": [
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"text": [
"Not all church buildings were as nice as Notre Dame, but yes, everyone after 1215 (well, Christians, which was almost everyone if you are talking about western Europe) was required to go to church at least twice a year: once to receive the Eucha... | [] | [] | [
[]
] | |
6qaj1t | why do cakes rise higher in the middle rather than equally across the top surface? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6qaj1t/eli5_why_do_cakes_rise_higher_in_the_middle/ | {
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"text": [
"You can consider it similar to not rising upwards, but inflating - the yeast in it creates air, which pushes the volume of the cake up. The sides are either held back by the edges, or have less pressure from air from surroun... | [] | [] | [
[],
[
"https://youtu.be/gvqgdN2YLbk?t=151"
]
] | ||
614e08 | what are the "reflections" in the road when the road is aligned with eyesight? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/614e08/eli5_what_are_the_reflections_in_the_road_when/ | {
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"text": [
"Imperfections in the road cause [inferior mirages](_URL_0_). An illusion of water on the road is one of the most common examples of mirages out there. \n\nThe same phenomenon occurs when you look over the top of a hot BBQ gr... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Mirage"
],
[]
] | ||
b92mxe | why do trucks have lower rpm but pull so much, compared to sports cars that rev higher but cant pull a big load. | Even in gasoline engines where a pick up trucks V8 rev lower than a sport cars V8 but they can pull a lot more. Would it not make more sense for pickup trucks to rev higher and have a lower gear? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b92mxe/eli5_why_do_trucks_have_lower_rpm_but_pull_so/ | {
"a_id": [
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"text": [
"Torque. It’s essentially about leverage and how those RPMs are used. Turning a big shaft slower is going to drive a large load, whereas turning a narrow shaft faster will provide more speed and acceleration at the cost of ... | [] | [] | [
[],
[]
] | |
90ujv9 | What exactly does "non-deterministic universe" mean? | By the uncertainty principle and limitations on our computational abilities, we humans can never model the universe's evolution. Is that what non-determinism refers to? (i.e. specifically with respect to humanity's point of view)
Suppose a higher, external being was able to observe the exact state of the universe at a... | askscience | https://www.reddit.com/r/askscience/comments/90ujv9/what_exactly_does_nondeterministic_universe_mean/ | {
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"Non-deterministic means that even if you were a godlike being who knew the position and velocity of every subatomic particle in the whole universe, you still couldn't perfectly predict the full future of the universe.\n\nDeterministic means a go... | [] | [] | [
[]
] | |
2pyk26 | when a country gives another country money, what actually happens to transfer the money? if it was a check, what would be the from and to fields? | Just saw another post where the U.S. is giving Pakistan $1 billion in aid/reimbursement which got me thinking what actually goes happens? I'm assuming it's not cash... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2pyk26/eli5when_a_country_gives_another_country_money/ | {
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"THIS is an excellent question and I look forward to reading more informed answers. But I believe that the money is simply wired from one central bank to another central bank. (Of course, aid takes on many forms -- sometimes ... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Alaska_Purchase#mediaviewer/File:Alaska_Purchase_(hi-res).jpg"
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q292j | What evolutionary advantage is there for fungi to produce brightly coloured mushrooms? | If they reproduce using spores, they don't need to attract animals. And colour seems to have very little relationship to toxicity (at least to humans).
Or, is colouration not related to genetics and instead related to external factors? | askscience | http://www.reddit.com/r/askscience/comments/q292j/what_evolutionary_advantage_is_there_for_fungi_to/ | {
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"text": [
"I do no know the answer to this question. However, neither do I know the answer to the question: \n > \"Is there an evolutionary advantage attained by fungi due to production of brightly colored mushrooms?\", \n\nand I'd pol... | [] | [] | [
[],
[]
] | |
5alug6 | why organizations like better business bureau and yelp are shady? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5alug6/eli5_why_organizations_like_better_business/ | {
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"text": [
"People tend to think BBB is a government agency because the word \"bureau\" is in it. It's a private entity and they have no real authority other than to say \"The BBB rates you [grade].\" The real problem is the only way to... | [] | [] | [
[],
[]
] | ||
aqia9d | why is the concept of white privelege in america so contentious? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aqia9d/eli5_why_is_the_concept_of_white_privelege_in/ | {
"a_id": [
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"text": [
"Perhaps it's easy to think of it in terms of \"Jew Privilege\". Jews have been regarded in many places as having a special privilege by virtue of being Jewish - a special privilege that explains why they entered financially rewarding professions ... | [] | [] | [
[]
] | ||
k8vk1 | i think i might understand "hashing" from a computing/security viewpoint... but can someone critique it like i'm 5? :) | The analogy I am coming up with is like this (it's abstract and silly, but bear with me!).
The doorman of a club has a guest list of people that are to be allowed in, and when people arrive, he checks if their name is there, and either rejects them or allows them in. Just like a login page on a website.
However, the ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/k8vk1/eli5_i_think_i_might_understand_hashing_from_a/ | {
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"text": [
"That's actually a very good example. In the real world, of course, it's very difficult to 'reverse-engineer' the hashed list. \n\nAlso, in your example, Ace would have a hash of 9,... | [] | [] | [
[],
[],
[],
[]
] | |
5vzgb5 | if someone wipes their hard drive, how do computer forensic people know what they did? | E.g. in the Waymo v. Otto lawsuit, the guy wiped his hard drive.
So how did they figure out all the stuff he did? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5vzgb5/eli5_if_someone_wipes_their_hard_drive_how_do/ | {
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"text": [
"there's a few ways.\n\n1. wiping your hard drive doesn't actually wipe the contents. for example, OS's operate in a similar fashion to the dewey decimal system. the OS stores a t... | [] | [] | [
[],
[],
[],
[]
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7czl2o | How effective is CPR without "mouth-to-mouth" air transfer? | Today, my girlfriend had a course in basic first aid, and she was taught CPR, with the only exception that she was told that mouth-to-mouth air transfer is not used anymore.
From a physicist undergraduate's point of view, knowing not much about human anatomy, I can say a couple of things.
1. The brain ends up dying d... | askscience | https://www.reddit.com/r/askscience/comments/7czl2o/how_effective_is_cpr_without_mouthtomouth_air/ | {
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"The new standard of layman's CPR or even licensed CPR states that there is enough oxygen circulating in the blood stream to keep organs perfused enough to keep hypoxic injury at bay. The #1 priority is ... | [] | [] | [
[],
[
"https://www.webmd.com/heart-disease/news/20101005/chest-compression-only-cpr-saves-more-lives#1",
"https://www.youtube.com/watch?v=I_izvAbhExY",
"http://www.emssafetyservices.com/2016/02/15/so-no-rescue-breaths-with-cpr-right/"
],
[]
] | |
2a7p3h | how does the tsa seemingly create any rule they want and everyone must follow? | From what I hear, read, and experience in my own life, I feel as though most decisions regarding the check-in experience at an airport which the TSA has established don't sit well with the majority of the population. As a democratic country, why don't these policies get voted on? If people don't like the things TSA d... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2a7p3h/eli5how_does_the_tsa_seemingly_create_any_rule/ | {
"a_id": [
"cisbidu",
"cise5my",
"cisem3b",
"cisiz88",
"cismorc"
],
"score": [
2,
2,
2,
3,
2
],
"text": [
"The TSA was established with the passing of the aviation and transportation security act of 2001. Congress wrote voted and passed the law for former president... | [] | [] | [
[],
[],
[],
[],
[]
] | |
crz0db | how do cells in an embryo know what to turn into? like how does it know which cell turns into muscle and which cell turns into bone? where does it draw the line between the 2? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/crz0db/eli5_how_do_cells_in_an_embryo_know_what_to_turn/ | {
"a_id": [
"exb02hj",
"exb0dtz",
"exb172n"
],
"score": [
6,
2,
4
],
"text": [
"Stem cells can give rise to specialized cells. When unspecialized stem cells give rise to specialized cells, the process is called differentiation. While differentiating, the cell usually goes through s... | [] | [] | [
[
"https://stemcells.nih.gov/info/basics/2.htm"
],
[
"https://en.m.wikipedia.org/wiki/Cellular_differentiation"
],
[]
] | ||
1wwr4a | why do we assume life on other planets is made up of the same chemicals as us? | why do we think life has to live within the habitable zone of a solar system, and why do we think life needs amino acids and water to exist? Is it possible for things to exist consistenting of other elements, I.e. transformers | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1wwr4a/eli5why_do_we_assume_life_on_other_planets_is/ | {
"a_id": [
"cf61slf",
"cf62mq1",
"cf62n7x"
],
"score": [
4,
8,
3
],
"text": [
"Because we know what life that is based on the same chemicals as us looks like. We know the signs, the needs and the waste products that can be used to find life.\n\nSomething that does not match up to... | [] | [] | [
[],
[],
[]
] | |
6bbgsj | speed limits | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6bbgsj/eli5speed_limits/ | {
"a_id": [
"dhl8amw"
],
"score": [
3
],
"text": [
"Road structure, distance between intersections, visibility, and number of lanes. These are just a few factors that go into determining the speed limit."
]
} | [] | [] | [
[]
] | ||
2b6b1v | how people are able to use words correctly without being able to define them | I assumed it is something to do with context knowledge or something, but I was very curious over how people can intuitively know to use a word correctly without being able to actually define what the word means. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2b6b1v/eli5_how_people_are_able_to_use_words_correctly/ | {
"a_id": [
"cj278gz",
"cj30h1f"
],
"score": [
3,
2
],
"text": [
"They have heard/read it in a certain context before and are simply regurgitating information when presented with identical context",
"Humans are *really* good at finding relationships between things. In fact, we are *to... | [] | [] | [
[],
[]
] | |
5a0jga | why do microwaves cause such a "burning sensation" even though they are less energetic than visible light? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5a0jga/eli5_why_do_microwaves_cause_such_a_burning/ | {
"a_id": [
"d9cru6m"
],
"score": [
2
],
"text": [
"Each photon of microwave energy has less energy than a photon of visible light. However, microwaves tend to be used in copious quantities. Radars, data links, food warmers, use microwave beams of thousands of watts. They also penetrate the ski... | [] | [] | [
[]
] | |
30znlx | What would happen if you swapped some ants between colonies? Would any(ant) notice? What about swapping a queen? | Say I took an ant from one colony on one side of a forest to another colony of the exact same species on the other side of the forest; would the ants recognize him as an outsider and kill him immediately? Or would they embrace their mutual affinity for ant culture and live on happily with their lives? | askscience | http://www.reddit.com/r/askscience/comments/30znlx/what_would_happen_if_you_swapped_some_ants/ | {
"a_id": [
"cpxgw9m"
],
"score": [
3
],
"text": [
"They are pheromone specific so yes, they would notice and they would kill an intruder.\n\nThis is a terrific book on ants - Journey to the Ants: A Story of Scientific Exploration by Bert Hölldobler and Edward O. Wilson"
]
} | [] | [] | [
[]
] |
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