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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3dksxs | How can you touch your nose with your eyes closed? | If you close your eyes, and try to touch your nose, you will usually hit the tip of your nose with the tip of your finger.
Is this because of muscle memory, or because we have some sense of where our limbs are (through the nervous system or whatnot?)
| askscience | http://www.reddit.com/r/askscience/comments/3dksxs/how_can_you_touch_your_nose_with_your_eyes_closed/ | {
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"text": [
"Your brain is spatially aware of where its body parts are, based both on where it last observed them and the non-visions senses of heat and pressure. The Parietal lobe blends its own experience of how the body has responde... | [] | [] | [
[],
[]
] | |
31imz1 | why does the u.s. lottery offer a lifetime annuity or an upfront payment which is less than the value of the winnings? coming from europe if i were to win €10m i would receive €10m. no questions asked and it's not taxed either. what is the thinking behind the u.s. system? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/31imz1/eli5_why_does_the_us_lottery_offer_a_lifetime/ | {
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"text": [
"Because US tax laws consider it to be income and thus is taxable. After all it is money that you received during the year. Why shouldn't it be taxed?",
"The value of the lotter... | [] | [] | [
[],
[],
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f2k6s9 | how have people not discovered this massive super volcano that’s 30x worse than yellowstone until just now, and is it positive there’s a worse monster out there? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f2k6s9/eli5_how_have_people_not_discovered_this_massive/ | {
"a_id": [
"fhd3qe4"
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"score": [
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"text": [
"It's not new, that article is misleading.\nIt says the eruption was 30 times bigger than Yellowstone, but that it was a long time ago.\nBroadly Yellowstone is seen as more active and more likely to erupt again sooner or later. Wah Wah is less act... | [] | [] | [
[]
] | ||
4l6cmf | when thousands of animators are working on the same animated film, how are they all able to draw/animate in the exact same style? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4l6cmf/eli5_when_thousands_of_animators_are_working_on/ | {
"a_id": [
"d3knzf9"
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"text": [
"As befitting such a giant effort, it's a multi-stage process. It typically starts with a small group (including the director, chief animator, and some concept artists) defining what the 'style' is going to be. From there, they'll create 'style... | [] | [] | [
[]
] | ||
3q1n1k | Why are boys more likely to have a cleft lip? | My wife pointed out that she'd never seen a girl with a cleft lip scar, and in thinking about it, neither have I. That's seems particularly odd considering that men can even hide it better with a mustache.
I found some weak sources that said it's more common in boys, but no theory as to why. Is a genetic factor for it... | askscience | https://www.reddit.com/r/askscience/comments/3q1n1k/why_are_boys_more_likely_to_have_a_cleft_lip/ | {
"a_id": [
"cwbedrj",
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"score": [
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"text": [
"I'm a girl with a cleft lip and palate. I have seen many girls with cleft lips and palates since I go to a cleft-specific hospital for treatment and follow operation smile extensively. \n\n\nI don't have a background in thi... | [] | [] | [
[],
[
"http://onlinelibrary.wiley.com/doi/10.1002/ajmg.a.36865/full",
"http://onlinelibrary.wiley.com/doi/10.1002/bdra.23391/abstract"
]
] | |
7ehqvm | how can a person be in "critical but stable condition"? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7ehqvm/eli5_how_can_a_person_be_in_critical_but_stable/ | {
"a_id": [
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"text": [
"\"Stable\" just means \"Not getting worse\"\n\nIf you're in a coma because you stuck your head in front of a moving bus you're in critical condition, but not currently dying and therefor stable.",
... | [] | [] | [
[],
[],
[]
] | ||
1vl9wq | If I detonate 10kT of TNT does the bomb lose the same mass as a '10kT rating' nuke? | The energy released from a nuke is attributed to the mass loss from the nuclear reactions. We are thought that the mass loss is due to the difference is masses of the nucleons and it's constituents which is in turn a consequence of the nuclear binding energy.
So for non-nuclear bound reactions, does the binding energy... | askscience | http://www.reddit.com/r/askscience/comments/1vl9wq/if_i_detonate_10kt_of_tnt_does_the_bomb_lose_the/ | {
"a_id": [
"cetfre7",
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"score": [
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"text": [
"Yes, the mass losses are identical, and both equal to *E/c^2*. The difference is that for the chemical reaction, the *percentage* of mass that is lost, compared to the total mass to begin with, is much less.",
"A chemica... | [] | [] | [
[],
[]
] | |
7bcu4y | how does a non-contact voltage tester works? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7bcu4y/eli5how_does_a_noncontact_voltage_tester_works/ | {
"a_id": [
"dph6p7h"
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"text": [
"All current moving through wiring create lines of magnetic flux. \n\nThe voltage tester uses a coil of wire and a small power source to create a magnetic field. Once the field created by the voltage detector is disrupted by another field, the det... | [] | [] | [
[]
] | ||
1jl6ac | the "super senses" of animals | What does it mean that a dog has a sense of smell more powerful than humans? Can they smell things we can't? Are things we smell more extreme to them?
Same with their hearing... Are things we hear that are loud deafening for them? If so, why are they not in pain?
I'm not asking about just dogs, but all animals with... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1jl6ac/eli5_the_super_senses_of_animals/ | {
"a_id": [
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"score": [
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"text": [
"They are more sensitive to things. Consider these examples.\n\nFor smell, imagine your neighbor is having a barbecue. Of course, you can smell it from your house. But, if you walk up the street a bit, you'll stop smelling it... | [] | [] | [
[],
[]
] | |
4stb2r | Why do many lip and/or skin care products have chemicals such as petrolatum and paraffin in them? | At face value it seems strange to have these chemicals in skin care products, but I am interested to see what redditors have to say. Also, if you could perhaps highlight some of the positives and negatives of the use of these chemicals on the body. Thanks | askscience | https://www.reddit.com/r/askscience/comments/4stb2r/why_do_many_lip_andor_skin_care_products_have/ | {
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"text": [
"Petrolatum and paraffin are both binding agents which do a great job of holding other chemicals in place. Petrolatum is petroleum jelly, that goopy stuff that you have in your bath... | [] | [] | [
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Hydrophobe"
]
] | |
1qwopb | why is it that most of dogs bark when someone is knocking at the door? | Basically, what is it about someone knocking on your door or ringing your doorbell that makes a dog go crazy? Is it because of something to do with the sound or what? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1qwopb/eli5_why_is_it_that_most_of_dogs_bark_when/ | {
"a_id": [
"cdh8wsv"
],
"score": [
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],
"text": [
"Most dogs are going to retain some level of that natural protective instinct of 'home', or at least the people inside of it.\n\nThe 'home' becomes that dogs territory, and they will guard it accordingly.\n\nWhen someone knocks on the door, or rin... | [] | [] | [
[]
] | |
2t7xoa | Why are black holes believed to be singularities? Where does the infinite value come from? | A star collapses. It's subatomic particles are overcome by gravity and crunched together. You end up with a sphere of matter whose escape velocity exceeds that of light.
That is my understanding of a black hole. Is it incorrect or incomplete? Physicists insist that black holes contain infinite density, and are th... | askscience | http://www.reddit.com/r/askscience/comments/2t7xoa/why_are_black_holes_believed_to_be_singularities/ | {
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"text": [
"It's not that black holes are believed to be singularities, it's that our mathematical treatment of them contains a singularity, and it's thought that eventually we'll figure out something more complete and it will go away.... | [] | [] | [
[],
[]
] | |
28w91w | why are hamburgers not called beefburgers? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28w91w/eli5_why_are_hamburgers_not_called_beefburgers/ | {
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"cifb10b",
"cifbd87",
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"cifce3d",
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"c... | [] | [] | [
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b069gx | how worthless was soviet union's ruble? | So ive watched several documentary on western companies inside soviet union, particularly pepsi back around the 70s and 80s, and how USSR settled on an agreement to trade pepsi syrup for russian vodka, because of how valueless ruble is. But like how valueless is it to the point where barter is more viable than to use o... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b069gx/eli5_how_worthless_was_soviet_unions_ruble/ | {
"a_id": [
"eicd3y8"
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"text": [
"The problem was that there were no trade between the US and USSR. So in the USSR the Ruble were worth a lot as you could use it on any corner store. However if you had any Ruble in the US they were almost worthless as anyone would accept it as p... | [] | [] | [
[]
] | |
d44373 | What caused the 1850's "bruh" spike | Was it common to use "bruh" in the 1850's? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/d44373/what_caused_the_1850s_bruh_spike/ | {
"a_id": [
"f07iuyu",
"f07j4tq"
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"score": [
9,
27
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"text": [
"The \"spike\" isn't really much of a spike when you [look at the percentages](_URL_1_). If you examine some of the books from that period they include [wildlife collection directories featuring Bruh macaques](_URL_2_), publ... | [] | [] | [
[
"https://books.google.co.uk/books?id=b58CAAAAQAAJ&pg=PA359&dq=\"bruh\"&hl=en#v=onepage&q=\"bruh\"&f=false",
"https://books.google.com/ngrams/graph?content=bruh&year_start=1800&year_end=2000&corpus=15&smoothing=3&direct_url=t1%3B%2Cbruh%3B%2Cc0",
"https://books.g... | |
1lg7w5 | How do space probes take accurate pictures at the right time? | Are pictures from Voyager 2 and other probes taken via pre determined calculations? That just seems so amazing that I'm thinking it must be done another way. | askscience | http://www.reddit.com/r/askscience/comments/1lg7w5/how_do_space_probes_take_accurate_pictures_at_the/ | {
"a_id": [
"cbz30im"
],
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"text": [
"The TL;DR answer is yes, everything's planned in advance.\n\nHow much planning goes into it depends on what mission you're talking about. If you're talking about Mars rovers, it's a very tactical process determined maybe only a day or two in adva... | [] | [] | [
[]
] | |
212blf | who's making money when a 20 year old movie plays on a tv channel? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/212blf/eli5_whos_making_money_when_a_20_year_old_movie/ | {
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"text": [
"There's always *someone* who owns the rights to a movie... at least until it's public domain (which can bring about things like [this] (_URL_0_)). That someo... | [] | [] | [
[
"http://mentalfloss.com/article/29201/late-movies-guy-buffalo"
],
[],
[],
[
"http://www.imdb.com/title/tt0056218/",
"http://www.imdb.com/title/tt0368008/"
],
[]
] | ||
3w50kf | if a merchant ship gets shot down in war who pays for it. | For example during the world war with all the sunken merchant ships which I'm assuming where owned by private companies were shot down who assumed the cost of the lost property? Was it the government or the owning company. If it was the company why would companies be willing to lose that much money (I know patriotic sp... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3w50kf/if_a_merchant_ship_gets_shot_down_in_war_who_pays/ | {
"a_id": [
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"text": [
"Well, both, sort of... Merchant ships would be insured, and in the event of a loss, the insurance company would be covering the losses. Obviously, however, in war time, premiums are going to rise considerably, which means that the owner is paying... | [] | [] | [
[
"http://www.jstor.org/stable/pdf/1013965.pdf",
"http://www.jstor.org/stable/249932",
"http://legal.un.org/riaa/cases/vol_VII/1-391.pdf"
]
] | |
bd78vx | silicon strips are recommended to use on surgical scars to help with healing. when you remove the silicon strip, the skin looks almost stippled, with tiny craters that wear off over a couple of hours. what is that? why does silicon do it? why does it go away? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bd78vx/eli5_silicon_strips_are_recommended_to_use_on/ | {
"a_id": [
"ekwse8i"
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"score": [
3
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"text": [
"What you’re asking about might be pressure sores which are usually caused by wearing tight things on your body or are a result of putting mild pressure on your skin while it is moist for a long period of time. They can be caused by tight clothes,... | [] | [] | [
[]
] | ||
1rwe9n | why do so many people consider older instruments better sounding than newly made ones? | I've heard everywhere that the way instruments were made many years ago can't be beat. Many people say that sound-wise, older and more "classic" instruments can never be beat.
I have two main examples of this. First, violins. I've heard so much about Stradivarius violins, and how no other violin can beat its sound. H... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1rwe9n/eli5_why_do_so_many_people_consider_older/ | {
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"text": [
"First of all, there is very little about the \"tone\" and \"feel\" of an instrument that can be looked at objectively as long as the instrument is properly built and set up. In bl... | [] | [] | [
[],
[
"http://www.thestrad.com/latest/news/stradivari-loses-out-in-blind-testing-study-of-player-preferences-for-old-and-new-violins",
"http://www.thestrad.com/latest/editorschoice/from-the-archive-classic-and-modern-violins-compared"
],
[
"http://blogs.scientificamerican.com/cocktail-party-physic... | |
2f5wpf | why is the ukrainian army struggling so hard to subdue the rebels? | As perthe wikipedia page on the military of Ukraine, they have 126,000 active personnel and 1,000,000 reservists. I appreciate they have to remain stationed around the country, numbers may be a bit exaggerated and they don't have the best equipment; but how is a rebellion of 'a few thousand' (as per media reports) hold... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2f5wpf/eli5_why_is_the_ukrainian_army_struggling_so_hard/ | {
"a_id": [
"ck66znb",
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"score": [
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9,
4,
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"text": [
"In one word: Russians.\n\nIn more words: A good deal of the Ukrainian separatists are Russian troops who, if you take the Kremlin's word for it, decided to vacation in Ukraine and ... | [] | [] | [
[],
[],
[],
[]
] | |
6vmi7f | In a fusion reaction, how are nuclei able to fuse when they're mostly empty space? | askscience | https://www.reddit.com/r/askscience/comments/6vmi7f/in_a_fusion_reaction_how_are_nuclei_able_to_fuse/ | {
"a_id": [
"dm1iphh",
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"score": [
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6
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"text": [
"Nuclei are made up of nucleons, which don't have definite locations in space. They have extended spatial wavefunction. The way that nuclear forces tend to work is that they pull the nucleons into an approximately uniformly-d... | [] | [] | [
[
"http://hyperphysics.phy-astr.gsu.edu/hbase/Nuclear/nucuni.html"
],
[
"http://www.physicsoftheuniverse.com/topics_quantum_uncertainty.html"
]
] | ||
62d722 | so whats up with congress and their browsing data.. why does everyone want to buy them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/62d722/eli5so_whats_up_with_congress_and_their_browsing/ | {
"a_id": [
"dflkntv"
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"score": [
5
],
"text": [
"Congress were scumbags and sold out the us public. New law says your ISP can record and sell your browsing data.\n\nThey want to buy congressmen browsing data to find gross or encriminating or dumb searches "
]
} | [] | [] | [
[]
] | ||
5pjs3n | Why don't incandescent light bulbs need any cooling, but LED lamps require it? | Old bulbs didn't require any cooling even in the 100-200W range. But LEDs need passive cooling after few W and active cooling over ~20 W. Why is that? | askscience | https://www.reddit.com/r/askscience/comments/5pjs3n/why_dont_incandescent_light_bulbs_need_any/ | {
"a_id": [
"dcrpu7d",
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"score": [
62,
5
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"text": [
"Old bulbs are simply wires that get so hot they glow, we actually want them to be hot. They get so hot that we put the wires in a vacuum (or at least oxygen-free atmosphere) to prevent them from burning. \n\nLEDs don't prod... | [] | [] | [
[],
[]
] | |
40u8p6 | Why are all the place-holder names of the incoming elements to the Periodic table all Unun-something? | [""IUPAC has now initiated the process of formalizing names and symbols for these elements temporarily named as ununtrium, (Uut or element 113), ununpentium (Uup, element 115), ununseptium (Uus, element 117), and ununoctium (Uuo, element 118)."](_URL_0_)
Why are they all unun? Is it in the protocol of the IUPAC to hav... | askscience | https://www.reddit.com/r/askscience/comments/40u8p6/why_are_all_the_placeholder_names_of_the_incoming/ | {
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203,
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85,
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"text": [
"They just refer to the latin names of the numbers. For example, Ununoctium (118) might be converted to english as one-one-eightium.\n\nLinguists are w... | [] | [
"http://www.cnn.com/2016/01/04/world/periodic-table-new-elements/"
] | [
[],
[
"http://old.iupac.org/reports/provisional/abstract04/RB-prs310804/Chap3-3.04.pdf"
],
[
"https://en.wikipedia.org/wiki/Systematic_element_name"
],
[],
[
"http://imgur.com/fSZfQlR"
]
] | |
askzxc | How/why were the Sámi people prosecuted in Scandinavia? When did they become separated from other Scandinavians? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/askzxc/howwhy_were_the_sámi_people_prosecuted_in/ | {
"a_id": [
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6
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"text": [
"In short answer, their religion (primary) and their non-Indo-European (Uralic) language (secondary). The following brief sketch, however, focus on the second one at first, then turn our attention to the first, religious dif... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/ado6lq/what_did_premodern_societies_such_as_the_inuits/",
"https://upload.wikimedia.org/wikipedia/commons/b/bb/Lapponia.jpg"
],
[]
] | |
1lr2lx | i'm fairly new to reddit and i see the name "carl sagan" a lot. what made him so popular? | I've tried googling informations about him but I want to know how he became so popular. Was there an incident that made him popular? When did he become so popular? I'm wondering how I have not heard of him before... Thank you. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1lr2lx/eli5_im_fairly_new_to_reddit_and_i_see_the_name/ | {
"a_id": [
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"text": [
"he tends [to explain the universe](_URL_0_) in an understandable way, ",
"Carl Sagan was an astronomer who, through his books and is television series *Cosmos* (and appearances on other television s... | [] | [] | [
[
"https://www.youtube.com/watch?v=dADUBcoEEHw"
],
[],
[
"http://upload.wikimedia.org/wikipedia/commons/7/73/Pale_Blue_Dot.png"
]
] | |
elt35z | when i’m in a room singing along to loud music at what i think is roughly the same volume, why does someone on the other side of the closed door hear my voice more clearly than the music? those peloton commercials got me thinking about this... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/elt35z/eli5_when_im_in_a_room_singing_along_to_loud/ | {
"a_id": [
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"score": [
21,
2
],
"text": [
"Your brain doesn't render an accurate depiction of your own voice, and some internal ear mechanisms also exist to prevent damage when shouting.\nAlso, your voice might be low pitched compared to the TV commercial, your wall... | [] | [] | [
[],
[]
] | ||
179uux | Why was there a decline in life expectancy... | between 1870 and 1880 for American men and women? I was looking at [this](_URL_0_) graph and noticed there's an upward trend in Americans' life expectancy, except for that one decade where it drops down considerably. I couldn't find any information about any disasters or epidemics having occurred in this era, so I was ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/179uux/why_was_there_a_decline_in_life_expectancy/ | {
"a_id": [
"c83odo0"
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"score": [
10
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"text": [
"That graph is a screenshot from the [Mapping History interactive site at the University of Oregon](_URL_0_) which is just a very cool thing to play with and it's got a lot of graphs and interactive maps. Seriously, it's neat.\n\nThat said, if y... | [] | [
"http://imgur.com/l1kyJs7"
] | [
[
"http://mappinghistory.uoregon.edu/english/US/US39-01.html"
]
] | |
52s3e3 | What age were people considered adults in Ancient Rome? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/52s3e3/what_age_were_people_considered_adults_in_ancient/ | {
"a_id": [
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"text": [
"Did the Romans even have a conception of adulthood like ours ? From anthropology we know many cultures had a clear adulthood ritual, something if you c... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
26zo0a | I need help identifying a flag found in attic | _URL_0_ | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/26zo0a/i_need_help_identifying_a_flag_found_in_attic/ | {
"a_id": [
"chw1ufj",
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"score": [
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],
"text": [
"Might want to try the guys over at [Vexillology](_URL_0_)",
"This is the flag of a former shipping company called [United States Lines](_URL_0_). That particular design was adopted in 1938 and flown until the company wen... | [] | [
"http://imgur.com/ELvWla7"
] | [
[
"http://www.reddit.com/r/vexillology/"
],
[
"http://www.crwflags.com/fotw/flags/us~hfu.html#uslines"
]
] | |
29agmn | when are you legally allowed to hit someone in self-defense? only after their first swing? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/29agmn/eli5_when_are_you_legally_allowed_to_hit_someone/ | {
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"cij08fz",
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"text": [
"It depends on a lot of things. You need to talk to a criminal defense lawyer or prosecutor in whatever jurisdiction you're in if you want the right answer.",
"There are dozens of confounding factors... | [] | [] | [
[],
[],
[
"http://lawcomic.net/guide/",
"http://lawcomic.net/guide/?p=864"
]
] | ||
4indkh | How did dyslexia manifest itself before the invention of written language? Or, alternatively, was dyslexia developed due to written language? | askscience | https://www.reddit.com/r/askscience/comments/4indkh/how_did_dyslexia_manifest_itself_before_the/ | {
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"score": [
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"text": [
"Dyslexia does not just affect reading, it ... | [] | [] | [
[
"http://www.nhs.uk/conditions/dyslexia/Pages/Symptoms.aspx",
"http://www.bdadyslexia.org.uk/educator/what-are-specific-learning-difficulties"
],
[
"http://brain.oxfordjournals.org/content/123/12/2373",
"http://www.apa.org/pubs/journals/releases/neu-1713.pdf",
"http://www.ncbi.nlm.nih.gov/p... | ||
8hesfl | why do food brands not use restaurants to promote their product? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8hesfl/eli5_why_do_food_brands_not_use_restaurants_to/ | {
"a_id": [
"dyj7av1",
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"score": [
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"text": [
"I know they do with alcohol. I worked in a sports bar and we were paid lots of money from beer and liquor companies to promote their products. Normally putting posters on the walls and we always had to... | [] | [] | [
[],
[],
[]
] | ||
24saxn | why do we eat certain foods at certain times of the day? | Like why do we generally associate eating something like eggs or cereal for breakfast as opposed to lunch or dinner? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/24saxn/eli5_why_do_we_eat_certain_foods_at_certain_times/ | {
"a_id": [
"cha5rn8",
"cha5uh2",
"cha8nd0"
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"score": [
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5,
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],
"text": [
"Culture and tradition. It varies geographically, too. There are places in Europe where eating eggs for breakfast would be considered very weird; why aren't you having meat and bread for breakfast?",
... | [] | [] | [
[],
[],
[]
] | |
80ehx6 | What reaction did Christian, Jewish or other religious leadership have to the rise of Islam, especially as the Muslims started making territorial gains? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/80ehx6/what_reaction_did_christian_jewish_or_other/ | {
"a_id": [
"duvevkx"
],
"score": [
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],
"text": [
"Here are a couple of earlier answers that might interest you:\n\n* [When did Byzantines stop thinking of Islam as a heresy, and start thinking of it as a religion?](_URL_0_) - by the ever-excellent /u/shlin28 \n* [When did the West start branding... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/3p491t/when_did_the_byzantines_stop_thinking_of_islam_as/cw3hjx6",
"https://www.reddit.com/r/AskHistorians/comments/3w1ype/does_the_koran_really_advocate_more_violence_then/cxsto1o/"
]
] | ||
a0d3qw | why is it that according to _url_0_ my download speed is 50mbps, but my download via the windows store is averaging 2mbps? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a0d3qw/eli5_why_is_it_that_according_to_speedtestnet_my/ | {
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"score": [
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3,
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2,
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"text": [
"Downloads are measured in *bytes* per second. Each byte is 8 bits, so 2 MBps equals 16 Mbps (capital vs lowercas... | [
"speedtest.net"
] | [] | [
[],
[
"Speedtest.net"
],
[],
[],
[
"speedtest.net"
],
[
"Speedtest.net"
],
[
"speedtest.net"
]
] | ||
mus0q | Would there be any negative possible outcomes from activating the Vitamin C gene in humans? | I am talking about the Mulo gene in humans, which got turned off (they say) about 40 million years ago, meaning that humans and a few others animals must consume Vitamin C in their diet or risk scurvy, etc. I have read that animals with properly functioning Mulo genes have blood Vitamin C concentrations thousands of t... | askscience | http://www.reddit.com/r/askscience/comments/mus0q/would_there_be_any_negative_possible_outcomes/ | {
"a_id": [
"c343s3h",
"c343s3h"
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"score": [
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2
],
"text": [
"You are probably correct that there are compensatory mechanisms (mutations or physiological) that could create negative effects if the gene is reactivated. I cannot think of an example, but there are examples of the compara... | [] | [
"http://en.wikipedia.org/wiki/L-gulonolactone_oxidase",
"http://www.sciencedaily.com/releases/2001/06/010615072358.htm",
"http://www.lewrockwell.com/sardi/sardi91.html"
] | [
[],
[]
] | |
d4vidt | why are clapboards necessary when filming movies? | I'm talking about the black and white board that someone has to clap and say the scene, take number, and "action!" while rolling the camera. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d4vidt/eli5_why_are_clapboards_necessary_when_filming/ | {
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"They have been used to synchronise sound and ... | [] | [] | [
[],
[],
[],
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aj7de7 | how do video games like cs: go handle the direction and the intensity of gun fires? | Clarification:
I am sorry that the question is ambiguous. I understand that the relative position of the sound origin can be calculated, but given that information, how to produce a sound could be heard that way?
For example, player A shoots player B at an angle of 45 degrees from B's left at 10 meters away. How ca... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aj7de7/eli5_how_do_video_games_like_cs_go_handle_the/ | {
"a_id": [
"eetdoou"
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"score": [
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"text": [
"Alright, so the sound of any particular gun is recorded in a way that leaves the game devs with a high-quality piece of audio with which they can do any sort of processing they want. Since people have two ears (usually), there is a left and righ... | [] | [] | [
[]
] | |
3npck6 | Has there even been a time when younger people were more religious than older people? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3npck6/has_there_even_been_a_time_when_younger_people/ | {
"a_id": [
"cvq3b9j",
"cvq5z22"
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"score": [
3,
2
],
"text": [
"During the end of the 15th Century in Renaissance Italy a Dominican Friar named Girolamo Savanarola initiated the Bonfire of the Vanities, which was a protest against the humanism and secularism that had been prevalent in Fl... | [] | [] | [
[],
[
"http://www.reddit.com/r/AskHistorians/wiki/rules#wiki_no_.22in_your_era.22_or_.22throughout_history.22_questions"
]
] | ||
17yfj2 | Why is the combustion engine still king of common transportation? | It seems like we are so along in knowledge and technological advances, but yet we are still using these semi-primitive ways to get around. Why isn't the hydrogen cell around more commonly? Or other little-to-none emission types of engines? | askscience | http://www.reddit.com/r/askscience/comments/17yfj2/why_is_the_combustion_engine_still_king_of_common/ | {
"a_id": [
"c8aaxd6",
"c8abiv4"
],
"score": [
3,
3
],
"text": [
"There are still a lot of problems with other types of motors. The most obvious is that the energy storage is super easy (comparably) for combustion engines.\n\nHydrogen is difficult to store. It diffuses through everything a... | [] | [] | [
[],
[]
] | |
6097ef | [Biology] Why are there so many fossils of the ancestors of humans yet few for the ancestors of Chimpanzees? | askscience | https://www.reddit.com/r/askscience/comments/6097ef/biology_why_are_there_so_many_fossils_of_the/ | {
"a_id": [
"df5mq2h"
],
"score": [
18
],
"text": [
"Part of it is that until human ancestors moved away from the trees, their chances of fossilization were lower:\n\n > Whether an organism is preserved greatly depends on the local environment in which it died. **Plants and animals from humid tro... | [] | [] | [
[
"https://books.google.com/books?id=--PNXm0q2O8C&printsec=frontcover&dq=Primate+Adaptation+and+Evolution&hl=en&sa=X&ved=0ahUKEwja7ZmpgeTSAhVENiYKHbMzBAMQ6AEIHDAA#v=onepage&q=Primate%20Adaptation%20and%20Evolution&f=false",
"http://anthro.palomar.edu/time/time_1.htm"
]
] | ||
wewda | Hubble Discovers Pluto's 5th moon orbiting it, yet Pluto still remains to not be deemed a planet. What makes a planet be a planet? | [_URL_0_](_URL_0_) 5th moon discovery.
| askscience | http://www.reddit.com/r/askscience/comments/wewda/hubble_discovers_plutos_5th_moon_orbiting_it_yet/ | {
"a_id": [
"c5cptz6",
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"score": [
6,
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"text": [
"Number of moons doesn't determine planet.\n\nThis question is easily googleable:\n\n_URL_0_\n > A planet (from Ancient Greek αστήρ πλανήτης (astēr planētēs), meaning \"wandering star\") is a celestial body orbiting a star or... | [] | [
"http://www.nasa.gov/mission_pages/hubble/science/new-pluto-moon.html"
] | [
[
"http://en.wikipedia.org/wiki/Planet"
],
[
"http://vimeo.com/29469709",
"http://vimeo.com/29709403"
]
] | |
1jcmxa | Are $X.99 pricing schemes still effective psychological tricks to make a person feel as if something costs less than it actually does? | Is there any data on the effectiveness of these kinds of pricing schemes as time goes on? I mean, nowadays you see $99.95 dollars and you think "a hundred bucks." I can't imagine the psychological trickery that would make a person just glance at the price and think "99 dollars" instead is as effective anymore.
Tha... | askscience | http://www.reddit.com/r/askscience/comments/1jcmxa/are_x99_pricing_schemes_still_effective/ | {
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"text": [
"There are atleast a few sources on this and also the quesiton has made it to /r/askscience a few times (so you might be able to dig up a more in depth answe... | [] | [] | [
[
"http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1601280"
],
[],
[
"http://www.sciencedirect.com/science/article/pii/S0022435996900135"
],
[],
[]
] | |
1yxvhd | how is verizon and comcasts speed throttling no t illegal? | I paid for a specific product. In light of the 'net-neutrality' judgment my provider (Verizon) *changed* the product I originally bought. How is this not an illegal bait and switch? I am now receiving a *different* service than the one I paid for. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1yxvhd/eli5how_is_verizon_and_comcasts_speed_throttling/ | {
"a_id": [
"cfoqmqh",
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"score": [
8,
4
],
"text": [
"You signed an agreement about limitations and their liberties with the service. ",
"The service you are paying for clearly (or maybe not too clearly) states \"up-to\" a certain speed."
]
} | [] | [] | [
[],
[]
] | |
2dpmvb | Does increased exposure of suicides lead to more suicides? | askscience | http://www.reddit.com/r/askscience/comments/2dpmvb/does_increased_exposure_of_suicides_lead_to_more/ | {
"a_id": [
"cjrxnf3",
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"score": [
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],
"text": [
"Yes. It's called suicide contagion and has been in the news lately (sniff, Robin Williams, sniff). This [NY Times piece] (_URL_0_) has a nice recap, including lots of links to peer-reviewed papers. Co... | [] | [] | [
[
"http://www.nytimes.com/2014/08/14/upshot/the-science-behind-suicide-contagion.html?_r=0&abt=0002&abg=0"
],
[
"http://www.sciencedirect.com/science/article/pii/S0890856709602173",
"http://bases.bireme.br/cgi-bin/wxislind.exe/iah/online/?IsisScript=iah/iah.xis&src=google&base=ADOLEC... | ||
21gui3 | I own a 1943 Mosin Nagant rifle that was used during WWII that I bought from a surplus store. What happened to the extra Russian guns that were used in the war between its end in 1945 and when I bought it? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/21gui3/i_own_a_1943_mosin_nagant_rifle_that_was_used/ | {
"a_id": [
"cgcybgs"
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"score": [
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],
"text": [
"With the end of the war, most of the Mosin rifles were sent back to the arsenal for refurbishment, and then crated. Some were sent to allies as military aid. Most ended up in storage for WW3. With the easing of import laws to the US for Curios an... | [] | [] | [
[]
] | ||
4pnaqo | how much of professional poker is based on luck, if everyone plays "perfectly?" | That might sound like a stupid question at first, but rewatching Casino Royale got me thinking.
A lot of people know that being able to play poker professionally takes a lot of time and skill and a wealth of knowledge of the game, which is why a lot of the same people show up in the final tables a lot.
However, sin... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4pnaqo/eli5_how_much_of_professional_poker_is_based_on/ | {
"a_id": [
"d4mb22e",
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"score": [
5,
4,
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],
"text": [
"Poker isn't about having or playing perfect hands. It is about making others think you can beat them without saying anything. ",
"First of all, statistically speaking, amateurs are fairly represente... | [] | [] | [
[],
[],
[]
] | |
5hnvqj | how to make youtube work like i want it to? example; i want to watch a series in order, but i have to backtrack, backtrack, shut down, restart, up, up, left, right, left, right, ab, start just to watch the next video. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5hnvqj/eli5_how_to_make_youtube_work_like_i_want_it_to/ | {
"a_id": [
"db1kmfn",
"db1l7k3"
],
"score": [
2,
3
],
"text": [
"There is not a way. Use a youtuber's playlist. Youtube does not care any more for regular consumers, they are pushing for a more viral platform which means more money for direct ads, less for youtubers, and no more sequenced... | [] | [] | [
[],
[]
] | ||
19iu0h | why do radio stations censor words like sh*t but not the n-word? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/19iu0h/why_do_radio_stations_censor_words_like_sht_but/ | {
"a_id": [
"c8og32w",
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"c8oi77j"
],
"score": [
2,
16,
2
],
"text": [
"Because it's \"nigga\" not \"nigger\", and that makes it okay somehow.",
"Depends where you live and who's got a sandy vagina about it.",
"The FCC fines radio stations (and can revoke their lic... | [] | [] | [
[],
[],
[]
] | ||
8gl4oq | If substances like salt lower the freezing point of water, is there anything that raises it? | askscience | https://www.reddit.com/r/askscience/comments/8gl4oq/if_substances_like_salt_lower_the_freezing_point/ | {
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18,
38,
8
],
"text": [
"I don't think there are any. Such a substance would have to increase the chemical potential of the liquid phase, which is not possible by the normal rules of colligative properties.\n\nThere are subst... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Bacterial_ice-nucleation_proteins"
],
[
"http://schools.birdville.k12.tx.us/cms/lib2/TX01000797/Centricity/Domain/912/ChemLessons/Lessons/Phases%20and%20Changes/image022.jpg",
"http://www.pnas.org/content/pnas/114/44/11627/F1.large.jpg?width=800&height=600&ca... | ||
7h07ab | How much (or how little) did Japanese change over the centuries? Will a modern Japanese speaker be able to speak intelligibly with say Oda Nobunaga in the 1500s? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7h07ab/how_much_or_how_little_did_japanese_change_over/ | {
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213,
33,
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],
"text": [
"This might be a better question for /r/linguistics",
"More of course can be said here, but /u/limetom reponded to a [similar question](_URL_0_) rece... | [] | [] | [
[],
[
"https://www.reddit.com/r/AskHistorians/comments/7bjr7t/has_the_japanese_language_gone_through_similar/dpjgz1x/"
],
[],
[],
[]
] | ||
o2ng3 | Is converting water to steam to turn a turbine really still the most efficient way to generate electricity? | Debate how you generate the heat to convert water to steam however you want (nuclear, solar, coal, oil, whatever), but there has got to be a better way to convert that stored energy in the fuels into usable electricity? Isn't there? | askscience | http://www.reddit.com/r/askscience/comments/o2ng3/is_converting_water_to_steam_to_turn_a_turbine/ | {
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"text": [
"... | [] | [] | [
[
"http://library.thinkquest.org/C006011/english/sites/dampfturbine.php3?v=2"
],
[
"http://www.reddit.com/r/askscience/comments/o2ng3/is_converting_water_to_steam_to_turn_a_turbine/c3dx2nv",
"http://en.wikipedia.org/wiki/Carnot%27s_theorem_(thermodynamics)"
],
[],
[
"http://en.wikipedia.or... | |
9ntqq1 | How did China from being the richest country in the 17th Century ended up being a poor country. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9ntqq1/how_did_china_from_being_the_richest_country_in/ | {
"a_id": [
"e7q6vga"
],
"score": [
7
],
"text": [
"\"The richest country in the 17th century\" is a misnomer. Except possibly for a time after the Qing conquest, China was the biggest country in terms of population, and until the 19th century had the largest GDP, but there is no evidence for per ... | [] | [] | [
[]
] | ||
5flxiy | the difference between a national park and a national forest in the us. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5flxiy/eli5_the_difference_between_a_national_park_and_a/ | {
"a_id": [
"dal8dqr",
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"score": [
2,
7,
2
],
"text": [
"Generally, in national forests, structures can be built and resources can be used by non-government entities with permission. In national parks, this is strictly off limits. \nIn other words, national f... | [] | [] | [
[],
[],
[]
] | ||
5aei7k | how do free online stream websites finance their operations? is it somehow similar to how corporations like skype function? | I guess legal free providers if they are legal, such as putlockers, 123movies etc. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5aei7k/eli5_how_do_free_online_stream_websites_finance/ | {
"a_id": [
"d9fty5t",
"d9fuq6q"
],
"score": [
2,
3
],
"text": [
"Can you give a specific one you're thinking of? Do you mean legal free streaming pages or pirate ones?",
"Mostly ads, there is a reason when you go to sites like that you are bombarded with spam and pop ups."
]
} | [] | [] | [
[],
[]
] | |
30khr1 | how come it took ~8 hours for soyuz to reach the iss which is about 250 miles from earth, yet the apollo missions took about three days to reach the moon, almost 1,000x farther away? | In light of the recent Soyuz launch | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/30khr1/eli5_how_come_it_took_8_hours_for_soyuz_to_reach/ | {
"a_id": [
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19,
6
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"text": [
"docking with the ISS is a very delicate procedure, you dont want to come in too fast. they approach it much more slowly, whereas the Apollo missions, they had a trajectory and blasted off towards it at full speed and slowed... | [] | [] | [
[],
[]
] | |
oo149 | why everyone seems to think music piracy is morally okay. | As a musician who wants to start putting music online soon, this is something I've been wondering about. On one hand, I want more people to enjoy my music, even if they never pay for it. On the other, I would like to make a living off of it, which won't be possible if there is never a sale.
Is there a way to suppo... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/oo149/elif_why_everyone_seems_to_think_music_piracy_is/ | {
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30la5w | what happens if nobody chooses to run for president in the us? | All the talk of the race starting off with the Ted Cruz campaign has had me wondering about this. What would be the course of action if, unlikely as it is, nobody put their name in the race? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/30la5w/eli5_what_happens_if_nobody_chooses_to_run_for/ | {
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"The procedure for all presidential elections is:\n\n1. Each state chooses a number of electors equal to the number of members it sends to Congress.\n2. Each elector casts one vote indicating who they pr... | [] | [] | [
[
"http://en.wikipedia.org/wiki/United_States_presidential_line_of_succession"
],
[],
[]
] | |
39hjka | Is the pilot-wave interpretation of QM taken seriously? With recent experiments showing macro particle-wave dynamics, I don't understand why it's not. | So there's been a few experiments recently showing that the particle wave duality of QM can be explained by classical fluid dynamics (a droplet bouncing on a fluid creates the wave).
[Here's](_URL_0_) a video on it
I'm wondering why this interpretation (pilot-wave) doesn't seem to be taken seriously as the Copenhagen... | askscience | http://www.reddit.com/r/askscience/comments/39hjka/is_the_pilotwave_interpretation_of_qm_taken/ | {
"a_id": [
"cs3fmaa",
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10,
5
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"text": [
"Bohm's pilot wave theory is taken fairly seriously, as are many-worlds interpretation and the Copenhagen interpretation. The theories agree on the math and predictions (e.g., you derive the same Schr... | [] | [
"https://youtu.be/nmC0ygr08tE"
] | [
[],
[],
[
"http://physics.stackexchange.com/questions/8817/what-is-wrong-with-the-de-broglie-bohm-theory-a-k-a-causal-interpretation-of-q"
]
] | |
2azlou | why do videos that have a really high fps (let's say, 1000 fps) make it slow motion? | I've seen many videos with this type of thing and I was wondering why having a really high FPS make something go slow motion? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2azlou/eli5_why_do_videos_that_have_a_really_high_fps/ | {
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"text": [
"It doesn't. It _enables you to see things in slow motion and still have it be smooth_. Since 24FPS feels smooth, i you take 24FPS and slow it down by half you get a chopping feel... | [] | [] | [
[],
[],
[],
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fn4dmx | with hdr-capable tv becoming commonplace, why can’t we have a hdr format for pictures that takes advantage of this hdr capability? | Please don’t confuse this with the single HDR image that is created post processing. Displaying that image on a ‘HDR’ image will not take advantage of the HDR capability of the TV | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fn4dmx/eli5_with_hdrcapable_tv_becoming_commonplace_why/ | {
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"Such a file format is possible, but not as desirable as you'd think. Using two TIFF files for HDR allows all the code that works on TIFF images to be reused. Since TIFF is a well established standard, the idea of making a new standard doesn't d... | [] | [] | [
[]
] | |
41jc4c | I'm living in 100 B.C. in a Germanic tribe. There is a total Solar Eclipse. How do I explain this? How would my Roman Counterparts explain it? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/41jc4c/im_living_in_100_bc_in_a_germanic_tribe_there_is/ | {
"a_id": [
"cz2z25c"
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"I don't know how the Germanic tribes would have explained it, but in 100 B.C., the Romans would have known that the eclipse was caused by the moon obstructing the light of the sun. Thanks to the work of Hipparchus (based partly on older, Babylo... | [] | [] | [
[]
] | ||
25hqm4 | Why did the U.S. create the Grease Gun during WW2 when they had the Thompson sub machine gun? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/25hqm4/why_did_the_us_create_the_grease_gun_during_ww2/ | {
"a_id": [
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"text": [
"Compared with the Thompson submachine gun, the M3 was cheaper to produce, lighter, more accurate, and shorter (so easier to use in close quarters)\n\nIt was intended as the replacement for the Thompson. \n\nIt also fires a little slower, so it ta... | [] | [] | [
[]
] | ||
gzleh | Why do we want to squeeze our thumb hard after we hit it with a hammer? | ...and is it part of the same reaction that makes us want to poke or press a canker sore? | askscience | http://www.reddit.com/r/askscience/comments/gzleh/why_do_we_want_to_squeeze_our_thumb_hard_after_we/ | {
"a_id": [
"c1rgevp"
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"score": [
17
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"text": [
"The [gate-control theory of pain](_URL_0_) suggests that non-painful stimuli in an injured area can reduce the intensity of perceived pain. You rub an injury, it feels less painful."
]
} | [] | [] | [
[
"http://en.wikipedia.org/wiki/Pain#Gate_control"
]
] | |
ej9pci | why do humans get emotional (high-pitched ‘awws’, omg sad faces, pouty lips, etc.) over cute animals/fictional creatures/baby humans? is this reaction instinctual? if so, what is this tapping into? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ej9pci/eli5_why_do_humans_get_emotional_highpitched_awws/ | {
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"text": [
"Kind of like baby Yoda?",
"Humans think round things are cute... (babies, stitch from lilo and stitch, the dream works dragons, puppies and kittens...) due to wiring in our bra... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Cuteness"
],
[]
] | ||
68gcil | when did human ancestors become apex predators? | What were the major stages in the path of adaptation we took to gain our ecological status? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/68gcil/eli5when_did_human_ancestors_become_apex_predators/ | {
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"dgy9ysl",
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"text": [
"We never became apex predators. For one thing, we're not true carnivores, we're omnivores. Secondly, we never displaced the apex predators. Wolves, tigers, lions, sharks, and bears all still have ecological niches as apex pr... | [] | [] | [
[],
[
"https://www.pifsc.noaa.gov/kona_iea/projects/img/tophic_linkages_within_the_kaloko_reef_ecosystem_med.gif",
"https://www.researchgate.net/profile/Hugo_Bornatowski/publication/260553510/figure/fig2/AS:296890945032209@1447795725987/Figure-2-Topological-network-of-the-southern-Brazil-trophic-web-based... | |
4rdtkl | If all the planets aligned in a straight line, what sort of effect would the collective gravity of the planets farther away from the sun have on our orbit? [Physics] | As in, would the outer planets' collective gravity pull us away from the sun? | askscience | https://www.reddit.com/r/askscience/comments/4rdtkl/if_all_the_planets_aligned_in_a_straight_line/ | {
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"text": [
"Gravity is based on mass divided by the square of distance. For a quick consideration, we can just use the distance (in AU) of the orbits of the planets - the difference between the orbits is roughly the closest approach. ... | [] | [] | [
[],
[
"http://adsabs.harvard.edu/abs/1994A&A...287L...9L",
"https://www.newscientist.com/article/dn13757-solar-system-could-go-haywire-before-the-sun-dies?feedId=online-news_rss20"
]
] | |
94ea0r | Americans sent a small force to aid the Whites during the Russian revolution. Was this in-line with the behavior of other nations at the time and other nations' reaction to the revolution? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/94ea0r/americans_sent_a_small_force_to_aid_the_whites/ | {
"a_id": [
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"text": [
"You might like to look at two posts I have made on this subject, although I'd be happy to answer any further questions. \n\n[This one looks specifically at America's role and motivations in the civil war.](_URL_1_)\n\n[This puts it into perspecti... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/7rz6k0/how_come_the_reds_won_the_russian_civil_war_while/_/",
"https://www.reddit.com/r/AskHistorians/comments/6y7qtx/why_did_the_us_send_troops_into_russia_during_the/"
]
] | ||
15cm6s | The "Where's , When's and Why's" of shaving. | Pretty simple question out of curiosity. Where/When did the whole idea of shaving start and why did it begin? Mostly asking about the shaving of facial hair, but I'd assume it probably all began around the same time frame. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/15cm6s/the_wheres_whens_and_whys_of_shaving/ | {
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"text": [
"I'm not sure its possible to say when the practice started. We might be able to identify periods of time, or cultures where beards were fashionable (classical Greece) or unfashion... | [] | [] | [
[],
[],
[],
[]
] | |
4103id | how mobile apps which are supposed to "extend my battery life" work | I don't understand why I have to click "clean" or "speed up" every time I want it to work | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4103id/eli5_how_mobile_apps_which_are_supposed_to_extend/ | {
"a_id": [
"cyyiruk"
],
"score": [
5
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"text": [
"They typically kill tasks/apps that are running in the background.\n\nDepending on the platform and type of app, the app may be allowed to perform certain tasks in the background (when you are not using the app and potentially even when the app i... | [] | [] | [
[]
] | |
6ybba6 | When and how did people first notice that hurricanes have a spiral shape with an eye in the middle? | Hurricane shapes are quite distinct to us because we have satellite imagery. But on the ground, it simply looks like a huge storm. When and how did people start to recognize that hurricanes were different? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6ybba6/when_and_how_did_people_first_notice_that/ | {
"a_id": [
"dmm66gs"
],
"score": [
11
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"text": [
"In 1815 an American scientist named John Farrar published some observations on a hurricane that struck New England that year. He concluded that hurricanes are \" a moving vortex and not the rushing forward of a great body of the atmosphere\" He ... | [] | [] | [
[
"https://books.google.com/books?id=HyxGAAAAcAAJ&pg=PA102#v=onepage&q&f=false",
"https://books.google.com/books?hl=en&lr=&id=IEBWAAAAcAAJ&oi=fnd&pg=PA20&dq=William++Redfield+hurricane&ots=sNRBTIt8qQ&sig=ipCIN-AWSDxK7llqpm8lvA7wArc#v=onepage&q=vortex&f=false"
... | |
3ai0oh | Why do you feel numb when you feel embarrassed or extremely sad? | askscience | http://www.reddit.com/r/askscience/comments/3ai0oh/why_do_you_feel_numb_when_you_feel_embarrassed_or/ | {
"a_id": [
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"text": [
"It could be lots of reasons depending on the person, but the most basic answer is it's a dissociative response to what's happening to you. Essentially, the situation makes you uncomfortable, so your brain tries to separate you from that situatio... | [] | [] | [
[]
] | ||
9aim1f | Bosnia and Herzegovina has only 12 miles of coastline on the Adriatic Sea with one town (Neum) with less than 5,000 people, most of whom are ethnically Croatian, yet this territory splits Croatias coastline. How did this territory become part of Bosnia and Herzegovina? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9aim1f/bosnia_and_herzegovina_has_only_12_miles_of/ | {
"a_id": [
"e4wlsyh",
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"score": [
25,
12
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"text": [
"It goes back to the Treaty of Karlowitz in 1699, concluding the Austro-Ottoman War of 1863-97 (also called the Great Turkish War or the War of the Holy League). This marked the end of the Turkish expansion in Central Europ... | [] | [] | [
[
"https://upload.wikimedia.org/wikipedia/commons/e/e6/Ragusa.png"
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"https://hamdocamo.files.wordpress.com/2015/01/1374923_1591434627746084_7658468145893358917_n.jpg?w=510",
"https://hamdocamo.files.wordpress.com/2015/01/10953285_10152557151337136_7055128261990774726_n.jpg?w=510"
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1zv8e6 | how come when i listen to music at night it sounds faster than during the day? | It fascinates me because it happens every time. Any explanation?
| explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1zv8e6/eli5_how_come_when_i_listen_to_music_at_night_it/ | {
"a_id": [
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2
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"text": [
"I'm **NOT** an expert but I'll give it a shot to get a conversation going: \n\nThis is a question of perception so I'm almost 100% certain that the correct answer has something to do with the brain. At night (assuming you're... | [] | [] | [
[],
[]
] | |
7qolf6 | What actually kills a person when their body temperature is too low? | What is the first fatal effect of lowering a person's body temperature? I bet a lot of bodily functions cease to function at too low temperature on different scales. Is there a big one? Maybe one that occurs way before the rest. Thanks. | askscience | https://www.reddit.com/r/askscience/comments/7qolf6/what_actually_kills_a_person_when_their_body/ | {
"a_id": [
"dsqykbz"
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"score": [
48
],
"text": [
"There are a strange set of physiological responses to hypothermia. In one sense, hypothermia can be preservative - the body's functions slow to a minimum - and is in fact used in some critical situations in hospitals. Humans can also survive a h... | [] | [] | [
[]
] | |
4i5yxg | what does hawkings discovery, black holes don't have event horizons, mean? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4i5yxg/eli5_what_does_hawkings_discovery_black_holes/ | {
"a_id": [
"d2vcbha",
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"score": [
14,
14
],
"text": [
"The basic paradox of the black hole event horizon is that all \"information\" - velocity and position of the particles going past it, etc. is 'lost' because it can never return past the boundary. So say a meteor heads righ... | [] | [] | [
[],
[]
] | ||
a9i5m0 | brain stroke surgeries | My dad had a major stroke and I’m curious as to the scientific advancement we’re making for major strokes. I’m already understanding as to why and what caused it. Unfortunately, they could not give him the medicine to reduce the chance of it becoming what it was. My question is, other than removing part of the skull fo... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a9i5m0/eli5_brain_stroke_surgeries/ | {
"a_id": [
"ecjozu6"
],
"score": [
3
],
"text": [
"It sounds like you're describing thrombectomy. That's the physical removal of the clot so your brain gets oxygen again. Another way is to dissolve the clot which is called thrombolysis. For a thrombectomy we don't cut open your skull, but we go t... | [] | [] | [
[]
] | |
8tvp5p | I have heard it said that many computerised random number generators are never truly random. Why is that? | askscience | https://www.reddit.com/r/askscience/comments/8tvp5p/i_have_heard_it_said_that_many_computerised/ | {
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"score": [
14,
10,
2,
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],
"text": [
"Because they use a deterministic algorithm to generate the number. Most generators use some function to transform the \"random\" output in every iteration to generate a sequence ... | [] | [] | [
[],
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[],
[]
] | ||
1ntry3 | why linux will be good for gaming | Also anything else special about the stuff valve has be releasing info on. (If someone's already asked this just point me to the right link please) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1ntry3/eli5_why_linux_will_be_good_for_gaming/ | {
"a_id": [
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"score": [
4,
2
],
"text": [
"The underlying structure of linux is great for speed. The basic decisions made for high speed processing for servers can map very nicely into high speed performance for gaming. All that is needed is solid support from hardwa... | [] | [] | [
[],
[
"http://www.zdnet.com/valve-windows-8-is-a-catastrophe-for-pcs-7000001634/"
]
] | |
1p3lk8 | How are trace amounts of chemicals detected in a sample? | We often see drug tests claiming to detect metabolites down to the level of picograms in a few millileters of urine, or an arson investigation that discovers trace amounts of gasoline in a thoroughly burned building, but it seems amazing that they could be detected when the concentrations involved are so low.
Specific... | askscience | http://www.reddit.com/r/askscience/comments/1p3lk8/how_are_trace_amounts_of_chemicals_detected_in_a/ | {
"a_id": [
"ccyhhmz",
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"score": [
5,
4,
3
],
"text": [
" > My initial thought would be to come up with a reaction that could be catalyzed by the substance for which you're testing...\n\nYour intuition is correct! A common method is [enzyme-linked immunosorb... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Analytical_thermal_desorption",
"http://en.wikipedia.org/wiki/ELISA"
],
[
"http://en.wikipedia.org/wiki/Electrospray_ionization",
"http://www.rsc.org/chemistryworld/2012/06/chemistry-olympics",
"http://en.wikipedia.org/wiki/Tandem_mass_spectrometry",
"http... | |
misyc | Is there any method to surviving a water landing at terminal velocity besides blind luck? | I've heard a pencil dive is possible; is that at all advocable? | askscience | http://www.reddit.com/r/askscience/comments/misyc/is_there_any_method_to_surviving_a_water_landing/ | {
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"score": [
2,
2,
2,
2
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"text": [
"A survivor of a failed parachute landing on land at near terminal velocity described his thought process. He tried for resistance on the way down, but prepared for a [normal parach... | [] | [] | [
[
"http://adventure.howstuffworks.com/question729.htm",
"http://en.wikipedia.org/wiki/Parachute_landing_fall"
],
[
"http://www.straightdope.com/columns/read/2587/could-you-jump-off-a-bridge-or-a-tall-building-and-survive-the-fall"
],
[
"http://adventure.howstuffworks.com/question729.htm",
... | |
3rwdp0 | what do the number next to the names of stocks mean? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3rwdp0/eli5_what_do_the_number_next_to_the_names_of/ | {
"a_id": [
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"text": [
"They are essentially the price. The share price is how much it costs for one share of the company. Owning a share in the company means that you share ownership. You can technically then vote for major decisions that they let stockholders vote on.... | [] | [] | [
[]
] | ||
7wux0z | why tickling makes you laugh | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7wux0z/eli5_why_tickling_makes_you_laugh/ | {
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"text": [
"The short answer is that nobody really knows for sure. The longer answer is that tickling likely evolved as a behavior that teache... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | ||
6aoytf | if the fbi decided that a president/politician had committed a heinous crime, how would the next steps go down? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6aoytf/eli5_if_the_fbi_decided_that_a/ | {
"a_id": [
"dhga8ce",
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"score": [
2,
2
],
"text": [
"The FBI would formally inform congress. The House of Representatives would draft articles of impeachment and send them to the Senate. The Senate would then interrogate the president and any potential witnesses for relevant i... | [] | [] | [
[],
[]
] | ||
erdvw7 | Is there documentation of World War 1 ruins happened upon by World War 2 soldiers? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/erdvw7/is_there_documentation_of_world_war_1_ruins/ | {
"a_id": [
"ff4fztg"
],
"score": [
7
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"text": [
"Yes, there is. The US 5th Infantry Division not only encountered the Verdun and Meuse-Argonne battlefields, but even occupied and fought over several positions and fortifications that had been dug or used during the First World War. To quote seve... | [] | [] | [
[]
] | ||
15zxf1 | What form does matter take in a singularity? | Is the singularity a ball of the elementary particles compressed until they're "next to" each other with no motion or is it regarded as a unique form of matter where the elementary particles no longer exist? | askscience | http://www.reddit.com/r/askscience/comments/15zxf1/what_form_does_matter_take_in_a_singularity/ | {
"a_id": [
"c7reu8i"
],
"score": [
3
],
"text": [
"In spacetime physics (the theory of relativity and its extensions that involve a geometric description of spacetime), a singularity is not a place in spacetime, so it doesn't make sense to ask what form matter takes there. In such models, the sin... | [] | [] | [
[]
] | |
1l1vho | If a modern day PC was brought up into space, would it still function? | Also, if it did function, could you remove the fans/cooling system because space is so cold? | askscience | http://www.reddit.com/r/askscience/comments/1l1vho/if_a_modern_day_pc_was_brought_up_into_space/ | {
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"cbuxq79",
"cbuxqms",
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"score": [
15,
3,
4,
2
],
"text": [
"The cooling system would be way less effective in the near-vacuum of space. In an atmosphere, the heatsinks transfer the heat they gathered from the CPU to the air (or, with water... | [] | [] | [
[],
[],
[],
[]
] | |
2mmx5x | how do airline rationalize exorbitant prices when there are many empty seats? | I frequently travel on a low traffic route. One way ticket prices on the low end are $110/one way and $220 round trip when booked ~4 weeks in advance. However when I travel this route the plane is anywhere from 50-80% empty.
How do airlines rationalize taking such a loss? Why are there not more flexible ticketing opt... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mmx5x/eli5_how_do_airline_rationalize_exorbitant_prices/ | {
"a_id": [
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"text": [
"They raise the prices for exactly the same reason that you said, not as many people booked the seats.\n\nOut of all the expenses that an airline has for a flight, most of them are fairly static, that means that they dont ris... | [] | [] | [
[],
[]
] | |
9o0eoc | how does mcdonalds make such a huge profit from franchising out its restaurants? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9o0eoc/eli5_how_does_mcdonalds_make_such_a_huge_profit/ | {
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7,
7,
5,
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],
"text": [
"Watch the movie \"The Founder\" with Michael Keaton, its a very good movie!!! Explains all of this",
"If I remember correctly McDonald's provides almost ... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
23o0v4 | During the American Revolution, were the colonist in revolt actually called "Patriots", or is this something we attributed to them after? | So I started to watch that new show on AMC, Turn, about America's first spy ring. During the first episode, they are discussing a tavern owner known to be against the British Crown. The Redcoats keep calling him and his cohorts "patriots" in a disdainful tone.
Is this just bad screen writing, or was this actually ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/23o0v4/during_the_american_revolution_were_the_colonist/ | {
"a_id": [
"cgz7ou9"
],
"score": [
2
],
"text": [
"Before the American Revolution, the term \"Patriot\" was actually an insult. During the Revolution, the Americans were dubbed Patriots, and then embraced the term. It is similar to the term \"yankee\"."
]
} | [] | [] | [
[]
] | |
1dv49y | TT | You're at a party. The people around you find out about your interest in history. What is the inevitable question you dread? | Last time: [Longest- and shortest-reigning rulers](_URL_0_)
This week:
I'll be departing from the usual format of Tuesday Trivia to return -- somewhat fittingly for this subreddit -- to the past.
Almost a year ago to the day (May 9th, 2012), I asked the then much smaller community of /r/AskHistorians a somewhat [pro... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1dv49y/tt_youre_at_a_party_the_people_around_you_find/ | {
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"c9u5o2p",
"c9u5oh0",
"c9u5oyc",
"c9u5v5h",
"c... | [] | [
"http://www.reddit.com/r/AskHistorians/comments/1df2yp/tuesday_trivia_longest_and_shortest_reigning/",
"http://www.reddit.com/r/AskHistorians/comments/teymf/youre_at_a_party_in_mixed_company_the_people/"
] | [
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[
"http://gifrific.com/wp-content/uploads/2012/08/Gary-Oldman-Yelling-Everyone-Leon-The-Professional.gif"
],
[],
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[
"http://www.youtube.com/watch?feature=player_detailpage&v=uVZkiQP0gYQ#t=222s"
],
[],
[],
[],
[],
[],
[],
[],
[]... | |
5x44tz | school vouchers in the us | what do they do? Is it a system of government subsidizing for schools? What for? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5x44tz/eli5_school_vouchers_in_the_us/ | {
"a_id": [
"def1tvl",
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"score": [
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],
"text": [
"I think the basic objection is that under a voucher system, shitty schools get even shittier for those who are still stuck there. Plus you'll get rich folks complaining about why poor kids get to attend their schools, poor ... | [] | [] | [
[],
[]
] | |
6vz36c | why do you sometimes not feel a cut when you get it? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6vz36c/eli5_why_do_you_sometimes_not_feel_a_cut_when_you/ | {
"a_id": [
"dm42xfk",
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],
"score": [
3,
21
],
"text": [
"Two things:\n\n1: your body has a limited number of nerves, and the cut needs to affect one of them for you to feel it. If the cut is clean and misses the nerves, you won't feel it.\n\n2: hormones in your body can dampen p... | [] | [] | [
[],
[]
] | ||
4ynemr | when you have to pee really bad and it burns, what exactly is happening inside you? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ynemr/eli5_when_you_have_to_pee_really_bad_and_it_burns/ | {
"a_id": [
"d6p2l6s"
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"score": [
2
],
"text": [
"If you feel a burning sensation when you pee, you should see a doctor, not post about it on Reddit."
]
} | [] | [] | [
[]
] | ||
2w8dxw | would there be any effect on earth if we terraformed the moon? | Assuming the technology to suddenly turn the moon into a lush green life supporting mini earth complete with atmosphere existed, would it do anything to the way our little buddy orbited around us or to things like tides here on the homeplanet? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2w8dxw/eli5_would_there_be_any_effect_on_earth_if_we/ | {
"a_id": [
"cooh4hy",
"cooh4s9",
"cooh84c"
],
"score": [
2,
3,
4
],
"text": [
"Doesn't sound like any of that would significantly affect the mass or angular velocity of either body, so I'd go with no.",
"No real effect on the Earth, except for the political/economic/social one... | [] | [] | [
[],
[],
[]
] | |
od6m0 | What is the best legal way to have your body treated after death, in terms of releasing less pollutants into the environment (eg: burial, cremation)? | In [this](_URL_0_) questionable source, it is stated that:
> The average burial in the US puts [827] gallons of embalming fluid (includes formaldehyde and ethanol) into the soil.
and:
> Cremations are not much better whenit comes to polluting the earth. Cremation puts harmful gasses into the air including dioxins,... | askscience | http://www.reddit.com/r/askscience/comments/od6m0/what_is_the_best_legal_way_to_have_your_body/ | {
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"score": [
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... | [] | [
"http://i.imgur.com/5hUwp.png"
] | [
[],
[
"http://en.m.wikipedia.org/wiki/Sky_burial"
],
[
"http://www.treehugger.com/culture/the-green-goodbye.html"
],
[
"http://infinityburialproject.com",
"http://www.obit-mag.com/articles/after-i-die-ill-be-a-fungi",
"http://www.youtube.com/watch?v=5Arh2bmdEXc",
"http://www.ted.co... | |
5vblhu | car guys, what's the draw to e85 gas? | Is it really beneficial to performance gains? Is it only worth it with a tuned car or would something that is stock still see the same results? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5vblhu/eli5_car_guys_whats_the_draw_to_e85_gas/ | {
"a_id": [
"de0u4c2"
],
"score": [
2
],
"text": [
"In a performance application the benefit comes from it's octane rating. Most e85 is between 100 and 105 octane, quite a bit higher than premiun fuel. The downside is that it can eat up fuel system components thay are not designed to handle it.\... | [] | [] | [
[]
] | |
uo21i | If out of the total population on earth, 10% of the people are left handed, why are athletes who are left-handed so disproportionate than the general population? | In most sports team I've observed there are approximately 20% of athletes who are left handed. Why is this proportion larger and what chances are there of the total 10 % interested in sports? | askscience | http://www.reddit.com/r/askscience/comments/uo21i/if_out_of_the_total_population_on_earth_10_of_the/ | {
"a_id": [
"c4x1bg8",
"c4x1cku",
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],
"score": [
7,
2,
3
],
"text": [
"Because right handed people are less practiced at dealing with their left handedness than left handed people are with dealing with most every one else's right handedness. It gives them a competitive ad... | [] | [] | [
[],
[],
[]
] |
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