q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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clz67f | why is it that, before i fall asleep, my body suddenly snaps/jolts as if a bolt of lightning struck me? it's frequently accompanied by my teeth clenching suddenly. happens sometimes when i'm awake and lying down too. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/clz67f/eli5_why_is_it_that_before_i_fall_asleep_my_body/ | {
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"I would guess that you're fairly young and still possibly growing. What you're describing sounds a lot like something called a Myoclonic Jerk. Basically, a trigger of some kind leads to the sudden contr... | [] | [] | [
[],
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"https://en.wikipedia.org/wiki/Hypnic_jerk"
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4qvc1z | why do old school phone batteries last for a decade whereas newer phones last barely 3 hours? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4qvc1z/eli5_why_do_old_school_phone_batteries_last_for_a/ | {
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"Old school phone batteries don't last for \"a decade\". They may la... | [] | [] | [
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4yz4dt | why does electronics shrink in size and multiply in power so predictably? can't they just work on making machines that make smaller machines all the time ect to get the most output? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4yz4dt/eli5_why_does_electronics_shrink_in_size_and/ | {
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"text": [
"They have been making machines that can make smaller machines, for over half a century!\n\nBut we've reached the limit now, or very close to it. Individual components on chips are now just a couple of atoms across, and there's no way of making th... | [] | [] | [
[]
] | ||
7hxrzw | How do different connectors/cables vary in data transmission speed? | Between DisplayPort and VGA, why is DisplayPort faster than VGA? Is it the material, shape? | askscience | https://www.reddit.com/r/askscience/comments/7hxrzw/how_do_different_connectorscables_vary_in_data/ | {
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"From a materials standpoint, there's virtually no difference between VGA and DisplayPort - they're both insulated copper wires. Shape, too, is irrelevant - the shape of the connector simply serves to make sure you put the ri... | [] | [] | [
[],
[]
] | |
2ti5rj | Do nursing women who eat more calories on a daily basis produce higher calorie breast milk? | askscience | http://www.reddit.com/r/askscience/comments/2ti5rj/do_nursing_women_who_eat_more_calories_on_a_daily/ | {
"a_id": [
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"text": [
"According to [this](_URL_0_) article (which cites actual research studies), the mother's diet does not affect the caloric content of her breast milk. However, the kinds of fat that you consume can affect the kinds of fats present in breast milk. ... | [] | [] | [
[
"http://kellymom.com/nutrition/milk/change-milkfat/"
]
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5a5y46 | Did any groups following the US Civil War openly advocate a return to slavery? | And how quickly did pro-slavery sentiment die out? Were there any political groups, factions or politicians who openly wanted its return? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5a5y46/did_any_groups_following_the_us_civil_war_openly/ | {
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"I would not be able to answer how popular it was, but Buckner Payne published *Ariel: or the Ethnological Origin of the Negro* in 1867, which ends with a call to action, for slavery is a way to God's blessing and the rejection of slavery (and the... | [] | [] | [
[]
] | |
6sxuua | why does a laptop/desktop make noise while switched on but phones/tablets are silent when switched on, yet they are all computers with similar parts? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6sxuua/eli5_why_does_a_laptopdesktop_make_noise_while/ | {
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"text": [
"Laptops and desktops use active cooling with fans, and may have mechanical drives which produce noise. Tablets and phones only use solid-state storage and passive cooling without m... | [] | [] | [
[],
[],
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"https://www.amazon.com/HP-Premium-Flagship-Certified-Refurbished/dp/B01MS6TKUA/ref=sr_1_1?s=pc&ie=UTF8&qid=1502414224&sr=1-1-spons&keywords=hp+stream&psc=1&smid=ARKFFGMZRYG2X"
],
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1h3gnc | What level of culture did Neanderthals have? | I know (now, through searching) that the sub is inundated with Neanderthal questions, but they mostly seem to be DNA and extinction related. So hopefully this is different enough. I wanted to ask what the current thinking is on the level of Neanderthal culture at the Upper Paleolithic boundary and beyond?
Last I remem... | askscience | http://www.reddit.com/r/askscience/comments/1h3gnc/what_level_of_culture_did_neanderthals_have/ | {
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33,
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"Neanderthals made advanced tools, had a language (the nature of which is debated) and lived in complex social groups. The Molodov... | [] | [] | [
[],
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"http://en.wikipedia.org/wiki/Unilineal_evolution"
],
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"http://anthropology.net/2007/10/18/neandertals-have-the-same-mutations-in-foxp2-the-language-gene-as-modern-humans/",
"http://news.nationalgeographic.com/news/2007/10/071018-neandertal-gene.html",
"http://www.pasthorizonspr.com/ind... | |
12hye6 | Does proximity to the cathode/anode have an effect on results of horizontal gel electrophoresis? | If I'm using a gel box where the current is applied to one side of the box, are the lanes closest to the cathode and anode effected more?
Edit: If it makes a difference, the gel used was 3% agarose gel in 1X TAE buffer.
Edit 2: Fixed wording. | askscience | http://www.reddit.com/r/askscience/comments/12hye6/does_proximity_to_the_cathodeanode_have_an_effect/ | {
"a_id": [
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"text": [
"In my experience (anecdotal!), no, it does not. There can be differences between wells (i.e., material can get stuck in some wells and not others), between center lanes vs edge lanes (leading to \"smiling\" gels), and even between the top of the... | [] | [] | [
[]
] | |
4oyv9n | Am I, a person living in the West, currently getting any thing out of of the medical experiments performed by the Third Reich and the Japanese Army during World War 2? | Phew, that question was hard to phrase in a sensible manner.
I read somewhere that the research on frostbite in Unit 731 were groundbreaking, and I wondered if that research is used today in for example winter wear?
I hope it goes without saying that I am in any way implying that these war crimes were "worth it" ..... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4oyv9n/am_i_a_person_living_in_the_west_currently/ | {
"a_id": [
"d4go640"
],
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"text": [
"No.\n\nI have written about this previously [here](_URL_0_) and I will copy/paste my previous answer:\n\nUnfortunately I can't give you anything on the Japanese medical experiments (I have steered as clear of Unit 731 and the other medical exp... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/3yqab9/did_the_axis_medical_experiementation_nazi_and/cygqld1",
"http://www.nejm.org/doi/full/10.1056/NEJM199005173222006"
]
] | |
1762qf | Why does a cut leave a white scar whereas a burn leaves a pink scar? | I observed that when your skin is cut the scar goes white whereas scars left by burns are pink. I am unable to explain this with my own knowledge although I do know the burns are newer wounds and am aware that the burns may get paler with time but something in me tells me there's more to it than that maybe I'm optimist... | askscience | http://www.reddit.com/r/askscience/comments/1762qf/why_does_a_cut_leave_a_white_scar_whereas_a_burn/ | {
"a_id": [
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"score": [
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"text": [
"Scar color is not the same for every one, I have scars from cuts that are pink , and some from burns that are brown , ( I am caucasian ) Scar color as I understand it has to do with several factors including the treatment revived for the injury... | [] | [] | [
[]
] | |
txu7l | Why do women have breasts that in some cases are much larger than the milk glands inside would require? | Also, if the breasts grow during pregnancy as the milk comes in, why are they larger than a man's breasts while not pregnant? | askscience | http://www.reddit.com/r/askscience/comments/txu7l/why_do_women_have_breasts_that_in_some_cases_are/ | {
"a_id": [
"c4qpku8",
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"score": [
15,
9
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"text": [
"Because humans developed flat faces instead of jutted jaws, so protruding breasts help babies suckle without suffocating themselves.",
"Many times, we look at ourselves as a species in one way, without examining that we... | [] | [] | [
[],
[
"http://www.amazon.com/The-Naked-Woman-Study-Female/dp/0312338538/ref=sr_1_2?ie=UTF8&qid=1337639534&sr=8-2"
]
] | |
2ajazo | Okinawa: history and language from prehistory to reversion | Hi everybody!
This AMA is on Okinawa, originally an independent kingdom, now the southernmost portion of Japan. We're going to focus on the history of Okinawa from prehistory to Okinawa's reversion back to Japan in 1972. One caveat, though: we are not willing to talk about Okinawa during World War II. Neither of us a... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2ajazo/okinawa_history_and_language_from_prehistory_to/ | {
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"text": [
"Hi everyone! I'm going to be a little foggy starting up, as it's 6am here, and I'm almost N... | [] | [] | [
[],
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1jmwka | How common was beef in the diet of Medieval and early Renaissance peasantry? | I have always heard that mutton (sheep), pork, and especially fish, were the most common sources of meat in the average peasant's diet due to the other uses of cows and bulls. A friend of mine presses that the opposite is true, but hasn't quite offered any evidence to support those claims, so I was wondering. How commo... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1jmwka/how_common_was_beef_in_the_diet_of_medieval_and/ | {
"a_id": [
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"score": [
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4
],
"text": [
"By the peasantry? Not much. This answer is mostly going to apply to England, France, and Germany. Cows are far more expensive to raise and maintain compared to pigs and sheep. They require more feed and bigger pastures. And ... | [] | [] | [
[],
[]
] | |
45f5g5 | What technologies actually use our understanding of general or special relativity? | I've got this friend who keep saying that all this new astrophysics research is totally useless, and that Einstein's theories don't actually help anyone. But I know that's not true. Can you guys help me out and give some examples of of technologies that wouldn't be possible without understanding relativity, and how?
... | askscience | https://www.reddit.com/r/askscience/comments/45f5g5/what_technologies_actually_use_our_understanding/ | {
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"text": [
"Basically the only technology that does this is GPS, where the clocks on the satellites have to operate at sliiiightly different frequency than the ones on Earth to account for g... | [] | [] | [
[],
[],
[],
[]
] | |
3dhdai | hat happens to the body fat when you are losing it due to diet or sports? | I mean, the fat can't just disappear, or can it? :D | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3dhdai/eli5_hat_happens_to_the_body_fat_when_you_are/ | {
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"text": [
"Your body breaks it down and converts it into energy, water and CO*_2_*. You expel the water by sweating and breathing, and the CO*_2_* by breathing as well.",
"You are breathing it out. Your body gets energy from burnin... | [] | [] | [
[],
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] | |
am1pi2 | How long does it takes for a star to go supernova from the moment it starts to “burn” iron? | The last exploitable element for a star is manganese, once the star starts burning iron the fusion reaction is no longer sustainable and the star starts dying. How long does it take for it to go supernova from this moment? | askscience | https://www.reddit.com/r/askscience/comments/am1pi2/how_long_does_it_takes_for_a_star_to_go_supernova/ | {
"a_id": [
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"text": [
"Manganese has an odd number of protons, it doesn't play a role. A lot of processes later still release some energy. [Silicon burning](_URL_0_) lasts about a day, everything that comes afterwards is faster.",
"How I und... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Silicon-burning_process"
],
[
"http://curious.astro.cornell.edu/ask-a-question/85-the-universe/supernovae/general-questions/419-how-long-does-the-supernova-stage-of-a-star-last-intermediate"
]
] | |
360fkn | why does it seem more offensive to mimic a chinese accent rather than a british accent? | I see people doing british accents all the time but no chinese accents. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/360fkn/eli5why_does_it_seem_more_offensive_to_mimic_a/ | {
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"text": [
"I'd say it's for a couple of reasons:\n\n1) Chinese accents very often accompany racism and racist remarks, especially in the past (picture the kind of early 20th century Vaudeville rice-hat-and-slanty-... | [] | [] | [
[],
[],
[]
] | |
cv1n27 | why do humans instinctively react to objects moving quickly towards them by closing their eyes or looking away? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cv1n27/eli5_why_do_humans_instinctively_react_to_objects/ | {
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"text": [
"We instinctively duck if it's a large object, but close our eyes if it looks smaller, because that would be an insect or some dust.",
"It’s mainly about protecting your eyes. Pretty much any other p... | [] | [] | [
[],
[],
[]
] | |
5s0whp | why is a terrorist organization like isis so difficult to defeat? with so many powerful nations actively fighting them, how do they still have a leg to stand on? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5s0whp/eli5_why_is_a_terrorist_organization_like_isis_so/ | {
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"http://www.zerohedge.com/news/2016-12-14/congresswoman-says-us-arming-isis-introduces-bill-stop-it"
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[],
[],
[],
[],
[],
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... | ||
atkh1r | muscle atrophy | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/atkh1r/eli5_muscle_atrophy/ | {
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"text": [
"A decrease in muscle mass. Commonly seen in sick/elderly people (who are bed ridden). Not using the muscles shrinks them.",
"Muscles take a huge amount of resources to maintain. If it isn't being u... | [] | [] | [
[],
[],
[]
] | |
cwdfpw | Does frequent masturbation reduce androgen receptors? | I've heard that excessive masturbation reduces androgen receptors and in turn, doesn't allow your body to use testosterone. Is this true? | askscience | https://www.reddit.com/r/askscience/comments/cwdfpw/does_frequent_masturbation_reduce_androgen/ | {
"a_id": [
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"text": [
"The short answer is no, this is probably a lie told to discourage masturbation.\n\n[This 2016 study](_URL_2_) says men's testosterone \"might\" be increased by masturbation.\n\nIf you were to suddenly have a lot of testosterone in your bloodstrea... | [] | [] | [
[
"https://www.ncbi.nlm.nih.gov/pubmed/20139230",
"https://www.ncbi.nlm.nih.gov/pubmed/24001295",
"https://www.ncbi.nlm.nih.gov/pubmed/27495935"
]
] | |
e6c8j1 | why does food soften when heated? | I don't mean melting things like cheese or butter, but like a tortilla that is more rigid at room temperature, and then fluppy when heated (before crisping up when heated more). | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/e6c8j1/eli5_why_does_food_soften_when_heated/ | {
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"text": [
"There are a couple reasons. In some cases there are components that become less rigid when warmed. In tortillas there is often some fat that will heat up and become softer.\n\nAnother reason is that any existing water will turn to steam and make ... | [] | [] | [
[]
] | |
2c2dyx | after being hit with tranquilizer darts, is the target ever at risk of seriously injuring themselves by collapsing onto the dart with it pushing into them? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2c2dyx/eli5_after_being_hit_with_tranquilizer_darts_is/ | {
"a_id": [
"cjb9hyk"
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"score": [
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"text": [
"This is also minimized since the dart has small needle for a nose but then is fairly large and flat to stop it from going too deep. Most likely if someone were to fall on it it would just break off the needle rather than going any deeper. "
]
} | [] | [] | [
[]
] | ||
2h6j6n | Does a longer light bulb filament mean less heat per unit light dissipated? | I have two "traditional" style incandescent light bulbs, which look like something you'd see out of the 1910s: They glow a very warm orange.
One of the light bulbs is 60W, the other is 40W. They have totally different shapes.
The 60W one is shaped more like a traditional light bulb, and has a shorter filament. ... | askscience | http://www.reddit.com/r/askscience/comments/2h6j6n/does_a_longer_light_bulb_filament_mean_less_heat/ | {
"a_id": [
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"text": [
"Most probably this is because some of those \"vintage antique\" style of incandescent bulbs are not full of gas. They're \"full\" of vacuum. Lacking gas, there won't be any conductive or convective heating of the glass.\n\nHistory: a serious ... | [] | [
"http://st.houzz.com/simgs/d4b107c5021900cd_4-0509/traditional-light-bulbs.jpg"
] | [
[]
] | |
10rtls | Can the West take any credit for a prosperous South Korea? | Seeing the topic of Iran in the 60's-70's got me on the mindset of all the places the west has tried to bend in their direction over the last 70 years or so. So when I thought about the Korean War and post war Korea, it seemed to me that the Western influence has been mostly positive and even popular in South Korea. Gr... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/10rtls/can_the_west_take_any_credit_for_a_prosperous/ | {
"a_id": [
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"score": [
2,
10
],
"text": [
"South Korea can essentially be considered a protectorate state of the US's, simialr to Japan and Taiwan. As such, the US, and the West, have always had special trade agreements with Korea (and again, Japan and Taiwan) which... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Kim_Dae-jung#Early_life",
"http://en.wikipedia.org/wiki/Gwangju_Democratization_Movement",
"http://books.google.com/books?id=FpmB0ymrBS8C&lpg=PA98&ots=KTqQQTduZI&dq=hyundai%20shipbuilding%20turtle%20ship&pg=PA97#v=onepage&q&f=false"
]
] | |
2bw3k9 | Were there any large, complex, pre-Columbian cities like Tenochtitlan or Cusco in the present day US or Canada? | We often hear about the Inca, Maya, and Aztec, but I have never heard much about any large-scale, organized societies like that north of the Rio
Grande. Do we know of any great cities and civilizations from time? If so, why isn't there the same kind of archaeological record of their societies? If not, is there any gen... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2bw3k9/were_there_any_large_complex_precolumbian_cities/ | {
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2
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"text": [
"One that instantly springs to mind is Cahokia, which is in southern Illinois, basically across the river from St. Louis. It was the largest urban settlement of the Mississippian culture before European contact. In its heyday... | [] | [] | [
[],
[]
] | |
8mim6c | [Physics] How did scientists measure the gravitational constant G? What does it mean for G to have the value 6.674×10−11 m3⋅kg−1⋅s−2 | askscience | https://www.reddit.com/r/askscience/comments/8mim6c/physics_how_did_scientists_measure_the/ | {
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2,
9
],
"text": [
"Under Newtonian physics, gravitational attraction is proportional to m1m2/r/r . G is the proportional constant which makes that work out to Newtons.\n\ne.g., for the Earth and an 80 kilo person on the ... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Cavendish_experiment",
"http://science.sciencemag.org/content/315/5808/74"
],
[
"https://en.wikipedia.org/wiki/Cavendish_experiment"
]
] | ||
9sg3s5 | how do belly buttons form? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9sg3s5/eli5_how_do_belly_buttons_form/ | {
"a_id": [
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"score": [
2,
5
],
"text": [
"It's the place where your umbilical cord was attached to you in utero. It was used to bring oxygen and nutrients to you as a fetus. Once cut after birth it heals into the belly button ",
"Yeah the umbilical cord just dri... | [] | [] | [
[],
[]
] | |
7rzqct | Was the British execution of the leaders of the Easter Rising really what turned public opinion towards sympathising with the Irish Republicans, creating a push against Unionism and the establishment of Home Rule in the 1920s? | I've just got back from a trip to Dublin where I tried to learn as much of the history regarding Home Rule, and the formation of an Irish Republic as possible, as it is a subject utterly overlooked in English secondary school education, despite our obvious connections with the aforementioned subjects.
While I was in D... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7rzqct/was_the_british_execution_of_the_leaders_of_the/ | {
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"That's a tough one. There were a large number of Irish people (both Nationalist and Unionist) who joined the British army at the outset of the First World War at the behest of Irish politicians. So when the rising occurred i... | [] | [] | [
[],
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] | |
4ny47x | When did eunuch creation begin to seem immoral? | It seems that it used to be normal to castrate some boys for the purpose of making them servants....when did practice start seeming immoral to people and when did they stop doing it? Obviously we don't make mutilate the genitalia of little boys today... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4ny47x/when_did_eunuch_creation_begin_to_seem_immoral/ | {
"a_id": [
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"Do you have a particular culture in mind? The very last eunuchs I know about that would have (likely) been castrated expressly for service/enslavement would have been in the 1930s-1940s, in Ethiopia, for the Middle East. The last Chinese eunuchs ... | [] | [] | [
[
"http://www.okaz.com.sa/new/Issues/20110318/Con20110318406488.htm"
]
] | |
v8bqb | air mile/frequent flyer credit cards | Hi, I just turned 20 and am looking into applying for a credit card. I have saved all the money that hasn't gone directly to rent, living expenses, or tuition since I was 16, and fully intend to pay off the balance in full every month.
That being said, I have no idea what in the world an Air Mile/Frequent flyer cre... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/v8bqb/eli5_air_milefrequent_flyer_credit_cards/ | {
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"score": [
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"text": [
"Any sort of \"rewards\" credit card works the same as a regular credit card. The only difference is that the issuer will offer an incentive for you to use the card, in the form of \"rewards.\"\n\nBasica... | [] | [] | [
[],
[
"http://www.consumerreports.org/cro/magazine-archive/2011/december/money/credit-card-deals/compare-credit-cards/index.htm"
],
[
"http://www.creditkarma.com/",
"http://www.creditsesame.com/"
]
] | |
4ieo4m | here in the uk we are one of the windiest countries in the world, but also very northerly with quite weak sunlight, so why is there such a big push here for solar power as opposed to wind? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ieo4m/eli5_here_in_the_uk_we_are_one_of_the_windiest/ | {
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"I'm no expert, but as far as I know it's because:\n\na) Solar panels can be fitted on your house personally, whereas wind farms need to be done on an industrial scale, and there needs to be new groundwork set out (i.e. To ge... | [] | [] | [
[],
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] | |
2pdbf9 | why build streetcars/trolleys when busses work fine? | I have a hard time understanding what benefits do streetcars have over busses as a form of public transportation in cities. Streetcars need to stop at traffic light, just like busses and they move at similar speeds. If you need a form of public transit that isn't inhibited by traffic lights, light rail and subways sh... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2pdbf9/eli5why_build_streetcarstrolleys_when_busses_work/ | {
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"Streetcars have higher capacity than buses, and are cheaper to operate. So, yes, there's a larger investment up front, and you can't easily or cheaply change their route. But over ... | [] | [] | [
[],
[],
[],
[]
] | |
4izjmn | why haven't holograms, similar in design to that of the tupac one, been used in more everyday scenarios such as advertising or display cases etc? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4izjmn/eli5_why_havent_holograms_similar_in_design_to/ | {
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"Money. That hologram was estimated to cost somewhere between $100 000 and $400 000. Also known as most products' entire advertising budget, and your average billboard doesn't have... | [] | [] | [
[],
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"http://science.howstuffworks.com/hologram2.htm"
],
[
"https://en.wikipedia.org/wiki/Pepper%27s_ghost#Concerts"
],
[
"https://www.youtube.com/watch?v=IkLXJwCm2Lg"
]
] | ||
3xlh67 | When did Madrid surpass Toledo as the most important city in Spain and what was the reasoning for this? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3xlh67/when_did_madrid_surpass_toledo_as_the_most/ | {
"a_id": [
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"A reply to /u/Manyrandomtacos\n\nMadrid, or to be precise it's nearby ground chosen to be site of the new royal residence complex of El Escorial, was the choice made by Philip II in 1561. As the royal court largely settled in Madrid centered arou... | [] | [] | [
[]
] | ||
7s8fbo | why are animals seemingly terrible about judging when to cross the road? fov issue? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7s8fbo/eli5_why_are_animals_seemingly_terrible_about/ | {
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"text": [
"A lot of animals actually have a much better FOV than humans. I think the explanation to this is that they don't just cross when a car is coming, but the only time we really notice an animal crossing is when they jump in fro... | [] | [] | [
[],
[]
] | ||
98yd83 | hearing aids | How do hearing aids improve one’s poor sense of sound? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/98yd83/eli5_hearing_aids/ | {
"a_id": [
"e4jn60f"
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"text": [
"They are custom programmed to amplify the frequencies of sound (usually high pitch) in which the wearer has lost. If the hearing loss is too profound, bone anchored hearing aids or cochlear implants transmit the auditory vibrations without using ... | [] | [] | [
[]
] | |
5rwxu4 | how do they determine that a country lost/gained x thousand job at a specific point in time or for a specific reason? isn't the number constantly changing? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5rwxu4/eli5_how_do_they_determine_that_a_country/ | {
"a_id": [
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" > How do they determine that a country lost/gained x thousand job at a specific point in time\n\nSurveys mainly. In the US, the agency in control of this is the BLS:\n\n_URL_0_\n\nTheir website goes into more detail, but basically they survey co... | [] | [] | [
[
"https://www.bls.gov/"
]
] | ||
4k09vo | How do animals know where to strike? | Like when wolves throat clamp or when animals know you're making eye contact, how do they know it? | askscience | https://www.reddit.com/r/askscience/comments/4k09vo/how_do_animals_know_where_to_strike/ | {
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"text": [
"I believe it's by instinct, this information is already \"pre programmed\" in the animal's brain at birth in the same way that the animal already knows how to start walking (or at least how to start and try walking). Some be... | [] | [] | [
[],
[]
] | |
bids1a | when people say that they called “their lawyer” when they need assistance with random legal matters or even after getting arrested, do they have someone hired beforehand? does the average person need a general attorney ready to call at all times? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bids1a/eli5_when_people_say_that_they_called_their/ | {
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5j5scw | why is the deposit 10 cents in michigan, while it's 5 cents on other states? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5j5scw/eli5_why_is_the_deposit_10_cents_in_michigan/ | {
"a_id": [
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"score": [
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"text": [
"States do what they want. Some states set a deposit at 10 cents, some 5 cents, while others have none. "
]
} | [] | [] | [
[]
] | ||
7cvd2h | why does moss/algae podaminantly grow on the north side of trees, houses etc. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7cvd2h/eli5_why_does_mossalgae_podaminantly_grow_on_the/ | {
"a_id": [
"dpswj1j"
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"score": [
3
],
"text": [
"The sun rises in the east and sets in the West and Generally in the northern hemisphere the Sun comes out of the South so the north side of buildings, trees, etc. Is the only side that doesn't receive direct sunlight and is thus the most likel... | [] | [] | [
[]
] | ||
7i05ba | Did pre-contact Mesoamericans have a four season conception of the year? | Did they have analogous ideas for spring, summer, fall, and winter? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7i05ba/did_precontact_mesoamericans_have_a_four_season/ | {
"a_id": [
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"score": [
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"text": [
"Most of what we call Mesoamerica does not really have four seasons, so it would be surprising if they did. Barring the northern reaches (really, what could be called aridoamerica), Mesoamerica is in the tropics and as such the seasonal fluctuatio... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/295ha6/what_was_life_like_for_tezcatlipocas_ixiptla/cii7mb5/"
]
] | |
4ddnt7 | why do so many houses have basements? isn't it cheaper to build another level than to dig? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ddnt7/eli5_why_do_so_many_houses_have_basements_isnt_it/ | {
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4o7t8c | why the us president can only serve a set amount of terms in office when compared to australia where the pm can serve as many terms as they are voted in for. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4o7t8c/eli5_why_the_us_president_can_only_serve_a_set/ | {
"a_id": [
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"score": [
2,
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"text": [
"In the beginning of America we didn't have election limits on the office of the president. However it had been tradition that no one served more than two terms because that is how many our first president George Washington s... | [] | [] | [
[],
[]
] | ||
atwrnl | why is palm oil in everything? what is it's purpose? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/atwrnl/eli5_why_is_palm_oil_in_everything_what_is_its/ | {
"a_id": [
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"text": [
"It extends the expiration time. It's used a lot in cosmetics for that,but you should avoid it in foods.",
"Palm oil is a type of vegetable fat that is semisolid at room temperature, you can compare ... | [] | [] | [
[],
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] | ||
2xys1a | why some people in us have a problem with our government's relations with israel? | I recently got stationed in DC and every time I go downtown I see people protesting against the Israeli government or our government's relationship with Israel. For example a guy holding a sign that said I pledge allegiance to America or Israel? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2xys1a/eli5_why_some_people_in_us_have_a_problem_with/ | {
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"text": [
"There's a lot of nuance to U.S.-Israeli relations, but the gist of it is that the American government often seems to have unconditional support for everythi... | [] | [] | [
[],
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] | |
24339m | why can't we mass produce super microbes to decompose plastic at faster rates? | After watching a documentary (Plastic Paradise) on plastic and its damaging effects on the environment, I googled around and ended up finding a few articles on people (one of them being a teenager named Daniel Burd if that matters) isolating microbes that sped up the degradation process of plastic drastically. However,... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/24339m/eli5why_cant_we_mass_produce_super_microbes_to/ | {
"a_id": [
"ch34a7j",
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"score": [
2,
3
],
"text": [
"Lobbyists for the plastics/petroleum industry?",
"We can - in fact, I wouldn't be surprised if it's already been done. The problem is that, once the bacteria is released into the wild, we no longer control it. So it coul... | [] | [] | [
[],
[]
] | |
9q7vht | Historians of classical antiquity that have played AC:Odyssey: how accurate is the setting the game has recreated? Is anything completely wrong? | I want to think I’m looking at a fairly good representation of Classical Greece but it’s hard to know... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9q7vht/historians_of_classical_antiquity_that_have/ | {
"a_id": [
"e87cczv"
],
"score": [
2
],
"text": [
"Hi there. Not discouraging further answers, but you may be interested in [this recent AMA](_URL_0_) by u/iphikrates. "
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/9nla1e/i_am_a_historian_of_classical_greek_warfare_ask/"
]
] | |
2bo4n1 | Why are there no Native American restaurants or distinct Native American foods? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2bo4n1/why_are_there_no_native_american_restaurants_or/ | {
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"text": [
"But ... there are dis... | [] | [] | [
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[],
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"http://www.mbq-tmt.org/community/business-directory?category=5"
],
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"http://www.reddit.com/r/AskReddit/comments/sy7t4/why_do_i_never_see... | ||
7t1plx | How are the quantum mechanical laws of physics scaled to or related Basic Newtonian Physics? | The two seem so radically different from each-other (superposition vs F=ma etc). How are they related to one another other than just differences in scale?
I read an excerpt from one of Richard Feynman's books where (if I understood it correctly) he said that the quantum mechanical laws are the same as Newtonian Physi... | askscience | https://www.reddit.com/r/askscience/comments/7t1plx/how_are_the_quantum_mechanical_laws_of_physics/ | {
"a_id": [
"dt97j0s"
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"score": [
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"text": [
"Quantum mechanics needs to predict classical mechanics in the appropriate limit, or else it would be inconsistent with what we observe, because we observe that things in our everyday life are well-described by classical mechanics.\n\nAnd of cour... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Ehrenfest_theorem",
"https://en.wikipedia.org/wiki/Hamilton–Jacobi_equation",
"https://en.wikipedia.org/wiki/Path_integral_formulation"
]
] | |
3ftzi1 | How could a nation in the Holy Roman Empire own land outside of the Empire without it being incorporated into the Empire itself? | For example, when Charles V was in charge, why wasn't Spain incorporated into the Empire, or the Polish lands of Prussia pre-dissolution, or also how Austria owned Hungary, yet Hungary itself was not in the Empire. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3ftzi1/how_could_a_nation_in_the_holy_roman_empire_own/ | {
"a_id": [
"ctrznv2",
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"text": [
"You're confusing statehood with personal/dynastic union; the Holy Roman Empire was a confederation of states, not of dynasties. The Emperor couldn't demand the allegiance of principalities that weren't a part of the empire,... | [] | [] | [
[],
[
"http://www.reddit.com/r/AskHistorians/comments/36ylvx/why_was_it_common_for_european_kings_like_charles/cribywt",
"http://www.reddit.com/r/AskHistorians/comments/36ylvx/why_was_it_common_for_european_kings_like_charles/crievsy"
]
] | |
16knc1 | Poincaré recurrence theorem vs the heat death of the universe. | I just watched [this](_URL_0_) Numberphile video and got confused.
My understanding was that at some point in the far future the universe would experience heat death and everything would just become very boring for the rest of eternity.
But eve before that, the space between galaxies will at some point grow faster t... | askscience | http://www.reddit.com/r/askscience/comments/16knc1/poincaré_recurrence_theorem_vs_the_heat_death_of/ | {
"a_id": [
"c7wwqpn",
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"score": [
5,
3
],
"text": [
"The cosmological constant violates the 2nd premise of the recurrence theorem.\n\n > The phase volume of a finite element under dynamics is conserved.",
"The Poincaré recurrence theorem is a theorem so is proved to be tru... | [] | [
"http://www.youtube.com/watch?v=1GCf29FPM4k"
] | [
[],
[
"http://en.wikipedia.org/wiki/Ultimate_fate_of_the_universe#Theories_about_the_end_of_the_universe",
"http://en.wikipedia.org/wiki/Poincar%C3%A9_recurrence_theorem#Discussion_of_proof"
]
] | |
cv8as5 | i’ve heard that the american economy post world war ii is unsustainable, why is this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cv8as5/eli5_ive_heard_that_the_american_economy_post/ | {
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"text": [
"An extremely large portion of our economy was actually involved with rebuilding Europe and Japan after the war. After their infrastructures were rebuilt, and economies had started to recover (which took... | [] | [] | [
[],
[],
[]
] | ||
7pmr8o | I have read that Netherlands had one of the most advanced financial sector in 18th and 19th century. How did high finance develop to such an extent there? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7pmr8o/i_have_read_that_netherlands_had_one_of_the_most/ | {
"a_id": [
"dsii0yp"
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"score": [
117
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"text": [
"The advanced nature of the Dutch financial sector – which can be, and has been, described as the world's \"first modern economy\" – was a product of three main developments: [i] the Dutch revolt of 1568-1648 and the associated Spanish persecuti... | [] | [] | [
[]
] | ||
4dqhis | If black holes do not emit any light. Why isn't it obvious if there is a super massive black at the centre of a galaxy? Surely there would just be a massive region of space with absolutely nothing present? | I may be wrong but I'm almost certain I read somewhere that black holes are hard to detect. Given the above reasoning I can't understand why, hopefully you guys can explain this to me? | askscience | https://www.reddit.com/r/askscience/comments/4dqhis/if_black_holes_do_not_emit_any_light_why_isnt_it/ | {
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"text": [
"Supermassive black holes are very big, this is true. Sagittarius A^(*) has an estimated mass of over 4 million Suns and it very obviously has stars orbiting it.\n\n* _URL_0_ \n\nBut space is ***very ... | [] | [] | [
[
"https://youtu.be/tMax0KgyZZU"
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1ip24y | Conditions for colonists/settlers: how hard was it to found a new, lasting settlement? | I am currently reading the book *Why Nations Fail*, and it mentions how many colonists essentially never even tried to arrive peacefully, that they immediately sought to subjugate indigenous populations based off of the model of colonization established by Cortez. By capturing the indigenous leader, they could demand t... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ip24y/conditions_for_colonistssettlers_how_hard_was_it/ | {
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"Question, how did the British settlers deal with seasonal rive... | [] | [] | [
[],
[],
[],
[],
[],
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"https://www.youtube.com/watch?v=nNkIN0RzL70",
"http://www.reddit.com/r/AskHistorians/comments/1iodyh/i_am_a_1600s_englishwomen_about_to_immigrant_to/"
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[],
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"http://www.reddit.com/r/AskHistorians/comments/1bbga8/what_supplies_did_the_first_australian_settlers/c9... | |
a3d0oa | Why don't we dream under a general anaesthesia? | Why can't we dream under a general anaesthesia? | askscience | https://www.reddit.com/r/askscience/comments/a3d0oa/why_dont_we_dream_under_a_general_anaesthesia/ | {
"a_id": [
"eb6xvsd"
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"score": [
9
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"text": [
"We do dream under general anesthesia. Some patients report dreaming and, although it is not fully understood, some experience something called emergence delirium. If the sedation used is one that leaves the system rapidly, the patient can regain ... | [] | [] | [
[]
] | |
1r6ccx | how animals stay warm...i mean i know they have fur etc, but even with a coat on / gloves on and the rest, i feel freezing after long periods of time outside? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1r6ccx/eli5_how_animals_stay_warmi_mean_i_know_they_have/ | {
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"It all depends on the animal. Some animals live in groups and huddle up together. Many animals have dens and that helps keep their sleeping place a steady temperature in the same way a properly-made igloo can keep humans warm. Some animals hav... | [] | [] | [
[]
] | ||
84ppdl | Can anyone recommend a good history of the Social Democratic Party of Germany? | I'm primarily interested in the period from its origins through 1933, with a particular interest in the 1918 revolution and related issues. But I wouldn't mind something that includes the post-WWII era as well. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/84ppdl/can_anyone_recommend_a_good_history_of_the_social/ | {
"a_id": [
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"text": [
"The SPD for some reason has not really commanded much attention in the historiography. The party itself has a somewhat complicated history with splinterings and reformations that belie the contemporary SPD's claim to be one of Germany's oldest po... | [] | [] | [
[]
] | |
4va4zx | do additives in gasoline from petroleum companies such as invigorate or triclean actually do anything? or are they just a gimic to attract unaware customers? or maybe they do a little but are essentially negligible. please explain what they are and if they are worth a damn. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4va4zx/eli5_do_additives_in_gasoline_from_petroleum/ | {
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"text": [
"Ok you have 2 blends of gas, summer and winter, each blends has additives required from your country mandated as law, these are mainly detergents to keep your fuel system clean and THEY WORK GREAT! Every gas station has the minimum guaranteed. \... | [] | [] | [
[]
] | ||
x0n1i | How long would it take a man going a moderate speed on a bicycle to power his house for one day? | If you use a bicycle that converts your energy to electricity, and he goes a moderate speed, how long would it take him to power his house for a day, if his house uses an average amount of electricity?
EDIT: Also, his house is not running while he cycles | askscience | http://www.reddit.com/r/askscience/comments/x0n1i/how_long_would_it_take_a_man_going_a_moderate/ | {
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"Let's do some math (and some assuming). We will assume an ideal situation; i.e. no energy loss in wires and perfect energy storage capabilities.\n\nThe aver... | [] | [] | [
[
"http://www.eia.gov/tools/faqs/faq.cfm?id=97&t=3",
"http://www.motherearthnews.com/Renewable-Energy/2008-10-01/Pedal-Powered-Generators.aspx"
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],
[],
[
"http://www.youtube.com/watch?v=C93cL_zDVIM"
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] | |
7ab1rx | how marijuana gets you "high" | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7ab1rx/eli5_how_marijuana_gets_you_high/ | {
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"It contains a chemical (called Tetrahydrocannabinol aka THC, the white dusty crystals). When that is inhaled or ingested, the chemical gets into your blood stream. \n \nTHC i... | [] | [] | [
[],
[],
[
"http://learn.genetics.utah.edu/content/addiction/mouse/"
],
[
"https://www.youtube.com/oeF6rFN9org"
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1vdhe5 | proper use of i.e), eg), and ex). | I'm five and what is this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1vdhe5/eli5_proper_use_of_ie_eg_and_ex/ | {
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"text": [
"i.e. - essentially means \"in other words\"\ne.g. - essentially means \"for example\"\n\nAnd ex, is just an abbreviation of the word example. ",
"They're... | [] | [] | [
[],
[],
[],
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] | |
2mvddu | I'm in Chongqing, China and would like to know a bit more about the local history pre WW2. pointers? | Hello,
it seems that pretty much all the obvious local spots in Chongqing focus on the (abhorrent) bombing by the Japanese during WW2. It certainly has shaped the city, with many air bunkers now in use as restaurants, etc.
But I would like to know what happened here in the decades and centuries before and there seem... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2mvddu/im_in_chongqing_china_and_would_like_to_know_a/ | {
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"cm80f4e"
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"text": [
"Piggyback question: did Chongqing play any major role in the pre-Republican history of China? I only know Chengdu for example was the Capital of the Kingdom of Shu."
]
} | [] | [] | [
[]
] | |
12zlob | ; why do macintosh screens produce more vivid color? how is it that their colors pop so much? | I'm a PC fan, but I can't help but notice how smooth and "poppy" everything looks on a newer mac. What do they do different computationally to make everything look so nice and smooth? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/12zlob/eli5_why_do_macintosh_screens_produce_more_vivid/ | {
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"text": [
"You're probably comparing run of the mill PC monitors with the more expensive apples ones. I'm sure you can find PC monitors of a similar color quality if you look around.",
"... | [] | [] | [
[],
[],
[],
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] | |
1y4hit | Question on how UV Sanitizing works? | How does UV kill bacteria? I know there are products out there that sell UV wands used to clean non-porous surfaces. How dos this work. Also, what bacterias are not affected by UV? | askscience | http://www.reddit.com/r/askscience/comments/1y4hit/question_on_how_uv_sanitizing_works/ | {
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"If two pyrimidine bases occur next to each other on the DNA (TT, TC, CC), UV radiation can induce a chemical reaction in which they become covalently bound to one another (TT dimers are the most common, TC dimers are less common, and CC dimers ar... | [] | [] | [
[]
] | |
2dm8uk | how people can get so connected to an actor (or other pop culture figure that they have not met and do not truly know) that they cry or feel deep despair upon death. | I am not trying to be disrespectful, I just truly do not understand it. Of course the loss of life, especially the case of suicide, is a sad occasion. But with Robin Williams, Paul Walker, Michael Jackson, etc. I see people write online how a particular death has just crushed their life and how they have been so emotio... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2dm8uk/eli5_how_people_can_get_so_connected_to_an_actor/ | {
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"Actors are easy for people for form imaginary bounds with because you see the world through their eyes, and get to know their friends an... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
56chg0 | How did ancient civilizations like Greece and Rome view fossils? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/56chg0/how_did_ancient_civilizations_like_greece_and/ | {
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"text": [
"The ancients found fossils with some regularity. Clearly aquatic fossils were taken as evidence for past floods or long-lost seas. Herodotus, for example, uses seashells found in the Egyptian desert as evidence for his theory that Egypt was crea... | [] | [] | [
[]
] | |
6azbi0 | Were a lot of Armenians aiding the Allied Powers against the Ottoman Empire during WW1? | I've heard claims of Armenians (that were based in the Ottoman Empire) behaving as 5th column citizens, but don't have an in depth knowledge on the situation to properly assess the situation. So how true is it that there were many Armenians helping Russia, France, and other Allied Powers against the Ottoman Empire duri... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6azbi0/were_a_lot_of_armenians_aiding_the_allied_powers/ | {
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"There is no such thing as \"5th column citizens\". This was Ottoman Turkish propaganda to portray the entire Armenian race as a rebellious belligerent and justify rounding up farmers and peasants for death marches and ethnic cleansing.\n\nGerman ... | [] | [] | [
[]
] | |
1kqzhj | If a parent has a mild form of a genetic mutation, can their child inherit a more prevalent type of it? | Say if the parent has a webbed finger, is it possible for the child to have several by only passing down the single mutation? | askscience | http://www.reddit.com/r/askscience/comments/1kqzhj/if_a_parent_has_a_mild_form_of_a_genetic_mutation/ | {
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"In that example it is unlikely. \n\nThe example of where this would happen would be a mild cancer susceptibility where because of additional mutation (or the other adults contribution) the child has a more severe susceptibil... | [] | [] | [
[],
[]
] | |
28kx6r | why do soldiers in corrupt dictatorships support those in charge? | In places like North Korea and many African nations, the people are suffering on a daily basis because of poverty, crime, and by being screwed over by the government. Why do the soldiers who protect those in charge allow it to, and even make it happen? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28kx6r/eli5_why_do_soldiers_in_corrupt_dictatorships/ | {
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"The military in those areas is often supportive of the regime because the military either *is* the regime, or receives significant support from it. This is a big part of North Korea, for instance -- the... | [] | [] | [
[],
[],
[]
] | |
299h0t | why are bluetooth speakers so expensive? | I don't really understand why they're so expensive after all this time...
An example would be the Beats Pill speaker that's like $200 currently. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/299h0t/eli5_why_are_bluetooth_speakers_so_expensive/ | {
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"Because people are willing to pay the premium for the technology. Just like why people pay so much for Apple products.",
"Beats are known for being ove... | [] | [] | [
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"http://www.ebay.com/sch/i.html?_sacat=0&_from=R40&_sop=15&LH_FS=1&LH_BIN=1&_nkw=bluetooth%20speaker&_pgn=3&_skc=100&rt=nc&_udlo=10&_udhi=20"
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] | |
31ig7d | why is the sun orange when it's low on the horizon (dawn/dusk), then turn a more blinding white color the higher it moves into the sky? | Just driving from work this morning and realized I've never thought about that. My guess: the angle the light travels through the atmosphere, relative to the viewers point-of-view? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/31ig7d/eli5_why_is_the_sun_orange_when_its_low_on_the/ | {
"a_id": [
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"text": [
"you are correct\nWhen the Sun is close to the horizon, you’re seeing it distorted by more of the Earth’s atmosphere, scattering away the bluer photons and making it appear red.\nWhen there’s smoke and pollution in the air, it enhances the effect ... | [] | [] | [
[
"http://www.universetoday.com/18689/color-of-the-sun/"
]
] | |
346y8l | Is there anything wrong with this method of solving the halting problem? | I found a 'solution' of the halting problem here
_URL_0_
It seems too simple to be a rigorous. What's the problem with this proof, if any? | askscience | http://www.reddit.com/r/askscience/comments/346y8l/is_there_anything_wrong_with_this_method_of/ | {
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"text": [
"The Halting Problem isn't an open problem to be solved, it's a question that a hypothetical machine might be designed to answer. It's a \"problem\" in the same sense as the Travelling Salesman Problem, which can easily be so... | [] | [
"https://www.youtube.com/watch?v=92WHN-pAFCs"
] | [
[
"http://en.wikipedia.org/wiki/Turing_machine"
],
[
"http://en.wikipedia.org/wiki/Proof_by_contradiction"
]
] | |
4gsod9 | My friend claims FDR's administration's policies lengthened the great depression, is there any truth to this? | Everything I've heard and read seems to claim the opposite, am I just misinformed? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4gsod9/my_friend_claims_fdrs_administrations_policies/ | {
"a_id": [
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"score": [
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"text": [
"If I can ask a dumb question: how do you prove a counterfactual?"
]
} | [] | [] | [
[]
] | |
ayq7x7 | why is it that smartphone batteries are said to deteriorate if used while charging, but the same is not true for laptop batteries and laptops are encouraged to be plugged in most of the time? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ayq7x7/eli5_why_is_it_that_smartphone_batteries_are_said/ | {
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"text": [
"I have not heard this specific phrase often, but this mainly has to do with heat generation.\n\nSmartphones, as they are so small, deve... | [] | [] | [
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1sa2uk | the number system of graphics cards | tried google and only got charts - couldn't find an explanation to the system.
repost from two years ago
cheers | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1sa2uk/eli5_the_number_system_of_graphics_cards/ | {
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"text": [
"There essentially isn't one. Within an individual product line from a given manufacturer the numbers may mean something, but mostly they are just the name the manufacturer gave to that video card. It's all about marketing.\n\nThe first number ... | [] | [] | [
[]
] | |
1fvzip | How much of the human body is actually water? I've seen anecdotes claiming everything from 60% to 95%. Also is it even accurate to say things like blood, cytoplasm, and cerebrospinal fluid are water-based, or are they a mixture of chemicals all their own? | askscience | http://www.reddit.com/r/askscience/comments/1fvzip/how_much_of_the_human_body_is_actually_water_ive/ | {
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"text": [
"A healthy adult male is a little over half, close to 60% water. \n\nAnd yes. Fluids in our body are made up with water involved. Blood actually contains 55% plasma, which is 92% water. Water is a useful molecule that all... | [] | [] | [
[],
[]
] | ||
2qnfic | why did so many men volunteer to join ww1/2? | Was just reading here, _URL_0_ and it seems a lot of men volunteered to fight, despite many probably having no experience /previous training, would mean the almost certain demise of them? Did people value their lives less than today or was just too determined to fight?
| explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2qnfic/eli5why_did_so_many_men_volunteer_to_join_ww12/ | {
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3
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"text": [
"when your country and your entire way of life is threatened it tends to spur you to action. you could join, or you could sit around until you became a subject of a foreign government.",
"Today, ou... | [] | [
"http://en.m.wikipedia.org/wiki/Recruitment_to_the_British_Army_during_the_First_World_War"
] | [
[],
[],
[]
] | |
3i4gee | why are there us military bases in different countries like japan. is there japanese military bases in the us? | Text (optional) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3i4gee/eli5_why_are_there_us_military_bases_in_different/ | {
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"text": [
"The US does not allow it. In instances like Japan and Germany part of the agreement at the end of ww2 was that w... | [] | [] | [
[],
[],
[
"http://pgpf.org/Chart-Archive/0053_defense-comparison"
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[],
[],
[],
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np32o | If a child is raised in a household that exposes them to two different languages equally, does this harm learning when starting school? | I know that all babies babble the same and can be figuratively moulded to speak any language (by listening to parents and audible media).
If the verbal exposure at home is of two languages equally, does this hinder development of the 'native' language at school, or does the child learn just as well as (or even better ... | askscience | http://www.reddit.com/r/askscience/comments/np32o/if_a_child_is_raised_in_a_household_that_exposes/ | {
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"text": [
"This would likely enhance the ability of the child to learn.",
"Wife/I have been working... | [] | [] | [
[],
[],
[
"http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.112.9315&rep=rep1&type=pdf"
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"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2755257/"
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32ovqc | Why are we so good at remembering some things but not others? Is our brain really that compartmentalized? | I understand left brain vs right brain. I get it. I understand why people are more inclined in certain areas than others. But when it comes to our ability to retain information shouldn't it be more consistent? Why do I have trouble remembering someones name 5 minutes later but I can remember their phone number a week l... | askscience | http://www.reddit.com/r/askscience/comments/32ovqc/why_are_we_so_good_at_remembering_some_things_but/ | {
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5,
3,
2
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"text": [
"i'm a little confused about what you mean with \"left brain vs right brain\" but that is a topic from another discussion.\n\n\nRegarding your question. Memory is picky and we know something about how th... | [] | [] | [
[],
[],
[]
] | |
48k4zu | Did Stalin's 5 year plans actually do anything to modernize and increase the Soviet Union's industrial capacity? Were they responsible for the Soviet Union being able to defend and defeat Nazi Germany, or did they do more harm then good? | I tried googling but I am getting some mixed answers.
Has this been asked before? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/48k4zu/did_stalins_5_year_plans_actually_do_anything_to/ | {
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"I'm actually just reading about this in the book *Inferno* by Max Hastings.\n\nFirst, a quote by Hastings:\n\n > The ruthlessness of the Soviet state was indispensable to confound Hitler. No democracy could have established as icily rational a h... | [] | [] | [
[]
] | |
20puoj | igmp, how does it actually work? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/20puoj/eli5_igmp_how_does_it_actually_work/ | {
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"text": [
"It is a local version of the currently unused multicasting protocol. If you understand multicasting, you'll do fine."
]
} | [] | [] | [
[]
] | ||
45dh5s | why are there more carnivores and herbivores than omnivores? | Since omnivores could hunt animals and eat local plants, wouldn't they have a huge advantage in survival and reproduction? Weren't able to kill any animals? Just dig up this plant and eat it. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/45dh5s/eli5_why_are_there_more_carnivores_and_herbivores/ | {
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"text": [
"Omnivores get to eat anything, but they do it way less efficiently. Herbivores like cows wind up extracting a ton of the energy from their food and can actually digest cellulose. Humans can't do that. Carnivores like wolves ... | [] | [] | [
[],
[]
] | |
261q6n | when i drink water, does my body still try to digest it as if it were food? | Taking biochem right now and this thought occurred to me as we got into the molecular pathways | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/261q6n/eli5_when_i_drink_water_does_my_body_still_try_to/ | {
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"text": [
"Water goes through your digestive tract with the food. Whereas food is digested and vitamins/nutrients are absorbed in the small intestine, water isn't absorbed until the large intestine, leaving behind solid waste (feces)."... | [] | [] | [
[],
[]
] | |
43vam1 | How did the US overcome Freedom of Association during desegregation in the 60's? | During desegregation, many whites claimed that their rights were being infringed upon by forcing them to interact/do business with blacks. How did the government get past this argument? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/43vam1/how_did_the_us_overcome_freedom_of_association/ | {
"a_id": [
"czldco0"
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"score": [
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"text": [
"The Supreme Court case of Heart of Atlanta Motel vs the United States established that Congress could force private business to serve blacks under the Commerce Clause. The Court held that the 5th Amendment protection of private property was subj... | [] | [] | [
[]
] | |
6e1ac3 | To what extent did timing play into the decision to revolt against the British during the American Revolution? | IOW, why did it happen when it happened and not sooner/later? Were the drivers mainly sociopolitical or was there a sense of British sovereignty over the 13 colonies as unfeasible in the long term? Did the pro-revolution forces think/predict that the American colonial system would probably face collapse anyway by the s... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6e1ac3/to_what_extent_did_timing_play_into_the_decision/ | {
"a_id": [
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"text": [
"Before I begin to answer this, I would also recommend a look into [this thread started](_URL_0_) by /u/Lorgramoth. While not identical to your question, many of the answers touch upon your very question.\n\nNow the quick and easy answer: there ar... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/1zfwnj/how_factually_correct_is_the_cracked_video_6/?utm_content=title&utm_medium=front&utm_source=reddit&utm_name=AskHistorians"
]
] | |
5729je | why are people so excited about ken bone? | When I first saw everyone talking about him, I mistook him for Karl Becker. I understand that Ken Bone asked a great question, but I don't understand why he is the one questioner who stands out among all the others. Why do people love him so much, and why all the media attention?
I feel like I'm the only person who ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5729je/eli5_why_are_people_so_excited_about_ken_bone/ | {
"a_id": [
"d8p42tr"
],
"score": [
3
],
"text": [
"He looks kind of frumpy but he has a name fit for an action movie star. So people think that is funny and they run with it. "
]
} | [] | [] | [
[]
] | |
8l4skf | if you poke your toe with a needle, how does your brain know exactly where you poked after receiving the signal from the spinal column? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8l4skf/eli5_if_you_poke_your_toe_with_a_needle_how_does/ | {
"a_id": [
"dzczyfa"
],
"score": [
3
],
"text": [
"Signals from different parts of the body each have their own nerves. When travelling up the spinal cord, they are grouped into general tracts, but each part of the body occupies a certain corner/section of the tract. When the nerve reaches the br... | [] | [] | [
[]
] | |
1wce0c | why do veins sometimes start pulsing uncontrollably? | Sometimes you will feel a vein start to pulse as if it were being blocked or more blood than usual is rushing through, can anyone explain this simply? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1wce0c/eli5_why_do_veins_sometimes_start_pulsing/ | {
"a_id": [
"cf0nv2k"
],
"score": [
3
],
"text": [
"Are you sure it's a vein? It could be a muscle spasm.. unless you visibly see the vessel pulsate."
]
} | [] | [] | [
[]
] | |
aj8npn | why do our phones get hot/warm when they're charging but the cords/wires themselves don't? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aj8npn/eli5_why_do_our_phones_get_hotwarm_when_theyre/ | {
"a_id": [
"eetl0x9"
],
"score": [
7
],
"text": [
"What you are feeling is the chemicals of the battery changing due to the electrical current running through it. As it is absorbing the electricity it is heating up because of these changes. The battery is actually changing size as well, but it's ... | [] | [] | [
[]
] | ||
3ooawm | why doesn't a store/company hold a black wednesday and let their employees have thursday and friday off? | They'd get all the customers first AND look better for allowing their employees to spend time with family. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3ooawm/eli5_why_doesnt_a_storecompany_hold_a_black/ | {
"a_id": [
"cvz0lhx",
"cvz0pk6",
"cvz1gem",
"cvz25z5",
"cvz607h",
"cvz6f7w"
],
"score": [
30,
8,
3,
2,
3,
3
],
"text": [
"Black Friday is the day after Thanksgiving. Everyone has big sales because *shitfucktons* of people have the day off and can go shoppi... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
d7twuq | how does the live translation in forums like the un and other rallies work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d7twuq/eli5_how_does_the_live_translation_in_forums_like/ | {
"a_id": [
"f14jt9h"
],
"score": [
3
],
"text": [
"There are a handful of languages which are official and in which conversations will take place. Then there are translators of which there is at least one that can speak a language of any given delegate, and one of the official languages of the fo... | [] | [] | [
[]
] | ||
5fa3us | why do video game graphics, animation, world size, and gameplay options advance in leaps and bounds, while ai seems to have barely advanced at all? | Title is self explanatory. Games keep getting prettier, bigger, faster, and vaster. But it seems there has been little to no improvement on the AI front.
Is there something fundamentally different about programming AI that renders it unable to improve at the same pace? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5fa3us/eli5_why_do_video_game_graphics_animation_world/ | {
"a_id": [
"daioo5u",
"daiopjb",
"daiqoln",
"dair4oh",
"dajcnp0"
],
"score": [
14,
5,
3,
4,
2
],
"text": [
"Programming an AI is much more difficult than graphics.\nGraphics are just shapes and figures although it is difficult to get proper reflections and fluid mo... | [] | [] | [
[],
[],
[],
[],
[]
] | |
6huh9u | How can scientists determine the different layers of a planet? | askscience | https://www.reddit.com/r/askscience/comments/6huh9u/how_can_scientists_determine_the_different_layers/ | {
"a_id": [
"dj1akyg",
"dj1r4n7"
],
"score": [
2,
4
],
"text": [
"I'm not very educated on this but I believe it's because the certain telescopes/cameras they use that detects different types of radiation and/or light coming off of a planet's surface allows them to determine the elements t... | [] | [] | [
[],
[]
] | ||
2zda5v | why is assisted suicide illegal but dnr's are legal? | They are both to end potential suffering and both require you to be mentally capable to choose that option. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2zda5v/eli5_why_is_assisted_suicide_illegal_but_dnrs_are/ | {
"a_id": [
"cphtp51",
"cphtqbg",
"cphtshv",
"cphttmd",
"cphwufn",
"cphy4vb",
"cphya47",
"cphybu6",
"cpi0t1m",
"cpi0ymw",
"cpi16x8",
"cpi1r67",
"cpi2n52",
"cpi2wzs",
"cpi38if",
"cpifq5o",
"cpiza2t"
],
"score": [
47,
11,
213,
7,
... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[
"http://www.polst.org"
],
[],
[],
[],
[],
[],
[]
] | |
5rkpit | How are intermontane basins formed? | I understand that they are located within and in-between mountain ranges, and I've read online that the basins are often formed as a result of grabens. However, I can't figure out how the extensional forces required for graben formation could appear in such a region. | askscience | https://www.reddit.com/r/askscience/comments/5rkpit/how_are_intermontane_basins_formed/ | {
"a_id": [
"dd8juwq"
],
"score": [
2
],
"text": [
"I think you have to be more specific in terms of geography. What basins are you referring to? For example, many of the intermontane basins (and matching intermontane plateaus) in Utah and Colorado are the result of uplift of the Colorado plateau ... | [] | [] | [
[]
] |
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