q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
value | subreddit stringclasses 3
values | url stringlengths 4 132 | answers dict | title_urls list | selftext_urls list | answers_urls list |
|---|---|---|---|---|---|---|---|---|---|
jm1vr | why do phones/mp3 players "lie" about battery percentage? | An example: My phone had a 100%-90% all day long after recharging and the next day it quickly went from 80% to 20%.
Another example: I played with my iPod until it showed me that it only has 20% battery left so I put it aside. a few minutes later it shows that it has over 40%. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jm1vr/why_do_phonesmp3_players_lie_about_battery/ | {
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"Because your phone/mp3 players is like a child eating a cake. Let's say that your parents need to leave to run an errand. They tell their friends, OK, I am almost out the door, m... | [] | [] | [
[],
[],
[],
[]
] | |
ws8vk | When a cancer metastasizes, does its function change? | For example, when melanoma spreads to the brain, is there anything fundamentally different about the cancer cells in the brain compared to the melanoma? Would a person in this situation be considered to have skin cancer in the brain?
Tangental question: How does angiogenesis of metastasized cells work? I can't imagine... | askscience | http://www.reddit.com/r/askscience/comments/ws8vk/when_a_cancer_metastasizes_does_its_function/ | {
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"score": [
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"text": [
"This is actually an ongoing area of research. The old theory was that the tumor was fairly homogeneous, and so when a metastasis arose, those cells had the same function as the original tumor. \n\n > Would a person in this situation be conside... | [] | [] | [
[
"http://www.nature.com/nrc/journal/v12/n5/full/nrc3261.html"
]
] | |
45oe04 | I've read the seating arrangement of King Louis XVI's legislative assembly during the French Revolution gave rise to the terms "left" and "right" in politics. Is this true, and if so why did they "stick" in modern day politics? | I was searching for an answer of why liberal politics are considered "left-leaning", and Google told me it was due to King Louis XVI sitting in front of his assembly with the conservatives on the right and liberals on the left.
Is this actually where this comes from? And if it is, was it used throughout history to th... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/45oe04/ive_read_the_seating_arrangement_of_king_louis/ | {
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"Not even close to my field but this is supported by the Oxford English Dictionary:\n\nFrom the entry on \"centre\" as referring to those with moderate opinions:\n\n > Polit. In the French Chamber (which is arranged in the form of an amphitheatre)... | [] | [] | [
[]
] | |
230xd5 | In the case of multiple injuries, does the pain from the different stack up, or do we only feel the pain from the most damaging injury? | Also, can someone tag this as "Biology"? New to the whole edit thing... | askscience | http://www.reddit.com/r/askscience/comments/230xd5/in_the_case_of_multiple_injuries_does_the_pain/ | {
"a_id": [
"cgsuwkj"
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"score": [
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"text": [
"This is a tough question to answer, as the amount of scientific information on it is lacking.\n\nIn short, it is believed that pain doesn’t stack in strength, but that you feel only what your mind focuses on – which is almost always the sharpest ... | [] | [] | [
[]
] | |
31m5sa | i can't see air, yet i can feel it. when wind blows against my hand when i stick it out of a car window, what exactly is hitting my hand that makes me feel it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/31m5sa/eli5_i_cant_see_air_yet_i_can_feel_it_when_wind/ | {
"a_id": [
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"text": [
"I believe you're feeling air pressure. When you stick your hand out the window of a car, the air passing by is momentarily blocked and compressed. I, unfortunately, don't know the details of the science.",
"What you're ... | [] | [] | [
[],
[]
] | ||
7n0v8i | how does a finger print sensor work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7n0v8i/eli5_how_does_a_finger_print_sensor_work/ | {
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"text": [
"When you take a close look at your fingers, you’ll notice that there are very small ridges on them. Everyone has a slight difference between the heights of these ridges, the distances between them, and all the empty spaces or unique points of t... | [] | [] | [
[]
] | ||
2y6mas | why do windshield wipers push the water to the drivers side? | Many cars wipers take the water from the passenger side of the windshield and, push it to the drivers side, that can make it difficult for the driver to see. Wouldn't be safer to do it the other way around? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2y6mas/eli5_why_do_windshield_wipers_push_the_water_to/ | {
"a_id": [
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"score": [
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"text": [
"The wiper is vertical when it reaches the driver's side, getting more water off than the passenger side.",
"They do this so that the driver's side gets cleared better. It sounds weird, but it's true.\n\nThe wipers don't... | [] | [] | [
[],
[]
] | |
f8rxtr | Why did Allende put Pinochet in charge of Santiago and later the entire Chilean army? Was his loyalty never questioned? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/f8rxtr/why_did_allende_put_pinochet_in_charge_of/ | {
"a_id": [
"fiohgkg"
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"score": [
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"text": [
"So, Pinochet was simply the next senior commander up for the job. There are a couple of reasons why Pinochet was not suspected, namely Chile’s recent political history. It was considered, by the early 1970s, to be the most stable country in Sout... | [] | [] | [
[]
] | ||
arrqmj | What did cannonball impacts actually look like in 18th century warfare? | Movies always show great explosions and men flying left and right when a cannonball hits a rank of marching men but how did the impact actually look? Would it send dirt and debris in every direction? Did the cannonball just mow down a few men in a row? What did cannonball injuries usually look like? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/arrqmj/what_did_cannonball_impacts_actually_look_like_in/ | {
"a_id": [
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"text": [
"In the 19th century, there were four primary types of ammunition fired by field artillery. Each one had different uses and very different effects on their unlucky victims.\n\nYou can see [the cross-sections of four types of ammunition used durin... | [] | [] | [
[
"https://i.imgur.com/5DG7RIq.jpg",
"https://i.imgur.com/0NYZW67.jpg",
"https://i.imgur.com/zOBOedb.png",
"https://i.imgur.com/EjDoxpB.gif"
]
] | |
1hdoni | Who were the Diggers, really? Disaffected peasants? Proto-communists? Just another religious faction? | I recently encountered a very sparse bit of information regarding the Diggers of 1649 England ([courtesy of Billy Bragg](_URL_0_)), which would paint them as outright communist. However, a bit of research leaves me with a very confused view of what might have been a Protestant offshoot group, or a peasant movement not ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1hdoni/who_were_the_diggers_really_disaffected_peasants/ | {
"a_id": [
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"score": [
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"text": [
"The diggers didn't call themselves diggers, they called themselves the True Levellers, which helps us quite a bit in understanding their relationship with other ideas and groups of the late 1640s/early 1650s. \n\nLevellers were a large and powe... | [] | [
"http://www.youtube.com/watch?v=SWRpl2S9iwk"
] | [
[
"http://www.marxists.org/reference/archive/winstanley/1649/levellers-standard.htm",
"http://www.amazon.com/The-World-Turned-Upside-Down/dp/0140137327/ref=sr_1_2?ie=UTF8&qid=1372623879&sr=8-2&keywords=the+world+turned+upside+down"
]
] | |
lxg1y | Could mining asteroids for useful minerals be feasible? | Are there enough resources useful to humans in asteroids to make mining them worthwhile? And if there are, is there any way to accurately predict their movements so your operation isn't smashed to pieces? | askscience | http://www.reddit.com/r/askscience/comments/lxg1y/could_mining_asteroids_for_useful_minerals_be/ | {
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"[Some Chinese think so](_URL_0_). There's not really a problem with predicting their movem... | [] | [] | [
[
"http://www.popsci.com/technology/article/2011-08/chinese-scientists-hatch-plan-pull-asteroid-orbit-around-earth"
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"http://www.spacefuture.com/archive/the_technical_and_economic_feasibility_of_mining_the_near_earth_asteriods.shtml"
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[],
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"http://www.popsci.com/technology/article... | |
nfcgq | encapsulation in java | Basically the title. What is it, how is it used? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/nfcgq/eli5_encapsulation_in_java/ | {
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"text": [
"Encapsulation is when you make some parts of your program unable to access other parts of your program. The purpose of encapsulation is to help you (or others) safely make changes to one part of your program without damagi... | [] | [] | [
[],
[]
] | |
b40e31 | Will sea levels affect true elevation as it rises because sea level is considered 0’? | With sea levels rising, would an altimeter read differently at the new true sea level? Also would we eventually change the height of the claimed mountain peaks to match the delta from true sea level as things progress? | askscience | https://www.reddit.com/r/askscience/comments/b40e31/will_sea_levels_affect_true_elevation_as_it_rises/ | {
"a_id": [
"ej4xzs8"
],
"score": [
3
],
"text": [
"Yes and no, and there's a lot of nuance in this question! First of all, \"true elevation\" doesn't really exist. We always have to measure elevation above some reference, which we call a datum. It is indeed very common to use \"sea level\" as the... | [] | [] | [
[]
] | |
25z8o8 | Is cancer caused by random error and if yes why are there the common types of cancer? | As I understand it the cancer starts when cells "make mistake" while dividing. This mistake in DNA replication causes the cells to go crazy, potentially killing the organism.
If these mistakes are caused by chance, how come there are same symptoms for various patients? What I mean, there are prostate cancer in men, br... | askscience | http://www.reddit.com/r/askscience/comments/25z8o8/is_cancer_caused_by_random_error_and_if_yes_why/ | {
"a_id": [
"chm4wd3",
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"score": [
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2
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"text": [
"The 'cause' of cancer is different dependent on the type of cancer. However despite this they all follow a simplistic premise; the cells lose control of their ability to divide.\n\nCells have a [cycle](_URL_1_) which they fo... | [] | [] | [
[
"http://en.wikipedia.org/wiki/P53",
"http://en.wikipedia.org/wiki/File:Animal_cell_cycle.svg",
"http://en.wikipedia.org/wiki/Senescence#Cellular_senescence"
],
[]
] | |
5zuw8g | why is it there are no american made anime? (i.e. japanese style animation) | Aside from the obvious Avatar, I can't even think of another. I'm sure there are others. But certainly not as many as in Japan, or even a sliver of the amount. Why is this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5zuw8g/eli5why_is_it_there_are_no_american_made_anime_ie/ | {
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"score": [
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"text": [
"Well anime is a big part of Japanese culture. The American version of \"anime\" is cartoons ... | [] | [] | [
[],
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Robotech_(TV_series)"
],
[],
[],
[]
] | |
14k21l | Seeking a complete narrative of history (esp. non-Western). | I would like to know: is there a book that contains a complete survey (or as complete as can be had in one book) of all of human history? I'm halfway through H.G. Wells's *Outline of History*, and it's pretty good, but despite what I'm sure are Wells's best efforts, it's rather Eurocentric. I feel that I now know the i... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/14k21l/seeking_a_complete_narrative_of_history_esp/ | {
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"score": [
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"text": [
"Not exactly what you're looking for, but I can recommend \"A history of the World in 100 Objects\" - both the book and the radio series. It's less about events, more about general trends, though (and be... | [] | [] | [
[],
[
"http://www.amazon.com/Destiny-Disrupted-History-Through-Islamic/dp/1586488139"
],
[
"Archive.org",
"http://archive.org/details/ahistoryegyptfr00breagoog"
]
] | |
1vrcvf | how can verizon promise faster internet, by upgrading, when they can't deliver a fraction of the speed i'm already paying for? | I pay for 15D/5U, but have never seen more than 5D/5U. Does not matter what time of day, what day of the week, wired or wireless. How can they get away with under-delivering when they are positive that more speed is available to me (for an extra fee, of course)? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1vrcvf/eli5_how_can_verizon_promise_faster_internet_by/ | {
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4,
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"text": [
"Because their advertising and your contract says \"up to\" X Mbps. As long as their network is configured to theoretically allow that amount, they're legally fulfilling their obligation.",
"how old... | [] | [] | [
[],
[],
[]
] | |
2vvloj | How far is the horizon from a human point of view? | askscience | http://www.reddit.com/r/askscience/comments/2vvloj/how_far_is_the_horizon_from_a_human_point_of_view/ | {
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... | [] | [] | [
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"http://scienceblogs.com/startswithabang/files/2013/02/redsun.jpeg",
"http://imgur.com/3Ni8VvG"
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"http://mathcentral.uregina.ca/QQ/database/QQ.... | ||
ctshlc | How come the Vikings in Newfoundland didn't cause a Columbian exchange of plants, animals and diseases? | Gardening is my hobby, and I was just reading up on an edible weed called [Common purslane](_URL_15_) because I want to encourage its proliferation in my garden. According to its Wikipedia article:
> It has an extensive distribution, assumed to be mostly [anthropogenic](_URL_30_),[3](_URL_13_) extending from [North A... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/ctshlc/how_come_the_vikings_in_newfoundland_didnt_cause/ | {
"a_id": [
"exow8qu"
],
"score": [
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"text": [
"While I can't recommend anything on the topic of plants and resources (Which are very good questions!) I can suggest these two older threads on why the Norse explorers didn't spread disease. There's always more that can be said, but you might lik... | [] | [
"https://en.wikipedia.org/wiki/Europe",
"https://en.wikipedia.org/wiki/John_Cabot",
"https://en.wikipedia.org/wiki/L%27Anse_aux_Meadows",
"https://en.wikipedia.org/wiki/Cranberry",
"https://en.wikipedia.org/wiki/Columbian_exchange",
"https://en.wikipedia.org/wiki/Black_rat",
"https://en.wikipedia.org/wi... | [
[
"https://www.reddit.com/r/AskHistorians/comments/1o2uyu/if_the_vikings_visited_north_america_before_1492/ccobp0v/",
"https://www.reddit.com/r/AskHistorians/comments/3jll9c/one_of_the_main_reasons_europeans_were_so_utterly/"
]
] | |
t2d7m | Bright skies during thunderstorm? | So my city (Cincinnati, OH) is currently under a severe thunderstorm. It's about 8pm, and it literally looks like it's 4pm outside. It's remarkably bright out for being so late in the day, and I am utterly confused. Does this have something to do with sunlight reflecting through the cloud layer in some odd way? Confuse... | askscience | http://www.reddit.com/r/askscience/comments/t2d7m/bright_skies_during_thunderstorm/ | {
"a_id": [
"c4iy6vb"
],
"score": [
2
],
"text": [
"Might be caused by low sun angles being able to scoot in underneath the cloud layers, basically catching the sunset and diffusing it. \n\n"
]
} | [] | [] | [
[]
] | |
4khrg1 | I am a merchant on the Silk road, what is a day on the journey like? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4khrg1/i_am_a_merchant_on_the_silk_road_what_is_a_day_on/ | {
"a_id": [
"d3fow0a"
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"score": [
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"text": [
"There's a bit of a misunderstanding of what the silk road actually was, it was a web of different trade routes taking all kinds of things across Eurasia. You wouldn't be a trader going from China all the way to Europe, you would most likely be a ... | [] | [] | [
[]
] | ||
2w4b4s | how does massive amounts of snow not cause flooding as it all melts? | As someone living in South Texas, Ive never experienced real snow. How does something like [This](_URL_1_) not cause massive flooding as the snow melts.
Edit: I say **real snow** because the only snow Ive ever seen was about a quarter inch of what looked like Dippin Dots [Pic](_URL_0_) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2w4b4s/eli5_how_does_massive_amounts_of_snow_not_cause/ | {
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"text": [
"It doesn't melt all at once and melted it's less water. ",
"1.)... | [] | [
"https://scontent-ord.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/1044632_10202076094556412_383948971_n.jpg?oh=9b447815c9b65fb85063586994fc8dae&oe=5593936E",
"http://imgur.com/wmfay5t"
] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Mississippi_River_floods#Great_Mississippi_Flood_of_2011"
],
[],
[
"https://www.nssl.noaa.gov/education/svrwx101/winter/faq/"
],
[],
[],
[],
[]
] | |
3lw8j3 | Did Victorian & Edwardian doctors actually stimulate women with their hands and primitive vibrators to treat "female hysteria?" | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3lw8j3/did_victorian_edwardian_doctors_actually/ | {
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"text": [
"And would it have been considered inappropriate for a doctor to treat his friends or relatives in this way, much like a modern doctor might perform exa... | [] | [] | [
[],
[],
[],
[],
[
"https://upload.wikimedia.org/wikipedia/commons/a/ae/Hysteria.jpg",
"https://upload.wikimedia.org/wikipedia/commons/2/22/Vibration-is-life.jpg"
]
] | ||
hxbfe | If I tied a bag around my head, how many plants would I need to put in the bag for me to be able to breathe comfortably? | askscience | http://www.reddit.com/r/askscience/comments/hxbfe/if_i_tied_a_bag_around_my_head_how_many_plants/ | {
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"text": [
"might be better phrased if you were in a sealed room as I think ... | [] | [] | [
[],
[],
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"http://courseworkbank.info/courseworkbank.info.php?f=R0NTRS9CaW9sb2d5L0xpbWl0aW5nIEZhY3RvcnMgJiB0aGUgUmF0ZSBvZiBQaG90b3N5bnRoZXNpcy5wZGY="
],
[
"http://www.ted.com/talks/kamal_meattle_on_how_to_grow_your_own_fresh_air.html"
],
[
"http://www.ted.com/talks/kamal_meattle_on_how_to_gr... | ||
2eyoyk | how can gas station/mini-marts (in the us) reject large bills? | I understand that they often do not have the cash available to make change, but on the dollar bills it clearly states that it is legal for all debts, public and private. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2eyoyk/eli5_how_can_gas_stationminimarts_in_the_us/ | {
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"text": [
"\"legal for all debts\" means *debts*. If they haven't agreed to the sale and you haven't received the goods, there's no debt yet.",
"From the [US Treasury on Legal Tender](_... | [] | [] | [
[],
[
"http://www.treasury.gov/resource-center/faqs/currency/pages/legal-tender.aspx"
],
[],
[]
] | |
5g7oyr | If you placed an electric scale in a vacuum, set it to zero and took it out, would it measure the weight of the atmosphere? | This may be a dumb question, but I've been wondering it for a while. Thanks | askscience | https://www.reddit.com/r/askscience/comments/5g7oyr/if_you_placed_an_electric_scale_in_a_vacuum_set/ | {
"a_id": [
"dar8u6m"
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"score": [
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"text": [
"No. The pressure from the atmosphere would be pushing up from the bottom as well as down from the top. If you had a scale that operated as some kind of airtight piston that whatever you're weighing pushes down, then it would measure the weight of... | [] | [] | [
[]
] | |
wm1w8 | Is it possible to rationally solve the equation a^x = x^a?
| It's not very hard to solve the equation from 1 to 6 by inspection. E.g. 2^x = x^2, x = 2 and 4 by inspection.
But for higher numbers, and for the variation a^x = x^b where a a=/=b, is it possible to solve the equation rationally and obtain exact answers?
I've been wondering this for a long time because it seems like... | askscience | http://www.reddit.com/r/askscience/comments/wm1w8/is_it_possible_to_rationally_solve_the_equation/ | {
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"text": [
"_URL_0_\n\nx = - b * W(-log(a)/b)/log(a)\n\nThis seems more appropriate in /r/math. They might be able to explain how to get to that result.",
"No, it's not possible. The solution xORioN63 gave isn't really a solution; i... | [] | [] | [
[
"http://www.wolframalpha.com/input/?i=a%5Ex+%3D+x%5Eb"
],
[]
] | |
2kf3qq | Why didn't the Romans conquer Poland or Eastern Europe? | Was it because of language? Weather conditions? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2kf3qq/why_didnt_the_romans_conquer_poland_or_eastern/ | {
"a_id": [
"cll356f"
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"score": [
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"text": [
"The Romans were mostly interested in conquering areas that had a high degree of self sufficiency which could provide a tax base for them to extract from. Poland and eastern europe (as well as parts of Germany) did not have the higher level of u... | [] | [] | [
[]
] | |
x62ty | how natural immunity to diseases works | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/x62ty/eli5_how_natural_immunity_to_diseases_works/ | {
"a_id": [
"c5ji58i"
],
"score": [
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"text": [
"What do you want to know in particular? \n\nShort summary is that most foreign proteins illicit an immune response. Bacteria and viruses generally have several of these foreign proteins (called antigens). Your body has the ability to produce imm... | [] | [] | [
[]
] | ||
4jy79y | if you go at the speed of sound could you run on water? | To Reddit ELI5 Community
I thought of this randomly, but what would happen if you run on water at the speed of sound, would you run across, or just sink?
~GeneticTech | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4jy79y/eli5if_you_go_at_the_speed_of_sound_could_you_run/ | {
"a_id": [
"d3akrr1",
"d3akvlf",
"d3akwny"
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"score": [
5,
2,
2
],
"text": [
"[Identity concealed] is not correct. You can run on water ([just watch this cute little lizard do it!](_URL_0_)), and you can do it at a speed significantly slower than the speed of sound. The exact spe... | [] | [] | [
[
"https://www.youtube.com/watch?v=Mp1R4Lxoj5c"
],
[
"https://youtu.be/_cCTmwZX5fE?t=15s",
"https://youtu.be/8P1vKpL3Zcs?t=58s"
],
[
"http://www.popularmechanics.com/culture/a5829/water-runner-physics-debunked/"
]
] | |
fc30z | Are people "born gay"? I saw this topic being dicussed in r/christianity and thought it would be helpful to get the opinion of a biologist/neuroscientist. Thanks. | askscience | http://www.reddit.com/r/askscience/comments/fc30z/are_people_born_gay_i_saw_this_topic_being/ | {
"a_id": [
"c1etmub",
"c1etmyd",
"c1evgga"
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"score": [
2,
10,
2
],
"text": [
"It's both \"nature\" and \"nurture\". Here are somethings that are known:\n\n* At an early age, there are hearing differences in heterosexual males and females, and likewise for homosexual males and fe... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Sickle-cell_disease"
],
[
"http://en.wikipedia.org/wiki/List_of_animals_displaying_homosexual_behavior"
]
] | ||
72mfsu | what do engineers typically do all day when working for a company. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/72mfsu/eli5_what_do_engineers_typically_do_all_day_when/ | {
"a_id": [
"dnjl26r",
"dnjl4ne",
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"score": [
3,
2,
2,
2
],
"text": [
"Look up detailed technical information and design solutions to little bits of a large, complicated problem.\n\nStudy customer requirements and think about how these might be solved... | [] | [] | [
[
"https://www.reddit.com/r/EngineeringStudents/comments/3mei1l/what_do_structural_engineers_do_all_day/",
"https://www.reddit.com/r/AskEngineers/comments/14mw9m/what_do_engineers_do_all_day/"
],
[],
[],
[]
] | ||
5i1aw8 | Physics: if b particles are electrons, can they be captured to produce electricity DIRECTLY from a radioactive source? | Is there any way to convert radioactive energy into electricity without going through a heat/steam/turbine system which is inherently lossy? | askscience | https://www.reddit.com/r/askscience/comments/5i1aw8/physics_if_b_particles_are_electrons_can_they_be/ | {
"a_id": [
"db64h0c"
],
"score": [
2
],
"text": [
"[Atomic batteries](_URL_0_).\n\n > Nuclear battery technology began in 1913, when Henry Moseley first demonstrated the beta cell. The field received considerable in-depth research attention for applications requiring long-life power sources for s... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Atomic_battery",
"https://en.wikipedia.org/wiki/Atomic_battery#Direct_charging_generators"
]
] | |
b3fr86 | how do we sleep comfortably during daylight but not when the lights are on at night? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b3fr86/eli5_how_do_we_sleep_comfortably_during_daylight/ | {
"a_id": [
"ej0thxa"
],
"score": [
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"text": [
"Most likely has to do with the amount of blue light coming off interior lights. The sun is full spectrum and even has a warm yellow glow to it, which is relaxing. Blue light, is hard to focus on and causes eye strain and also is known to reduce m... | [] | [] | [
[]
] | ||
21j1ih | the differences between being pansexual, bisexual, and omnisexual? also, how do some people identify as neither male nor female, both, or something else entirely? | Thank you to everyone who gave me a genuine answer! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/21j1ih/eli5_the_differences_between_being_pansexual/ | {
"a_id": [
"cgdj1ix",
"cgdjntu"
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"score": [
7,
42
],
"text": [
"For some folks, labels like gay/straight or man/woman don't \"fit\" right. Some people prefer to skip labels altogether, while others might opt for a term like the ones you listed in your question. Let me try to break it do... | [] | [] | [
[
"http://itspronouncedmetrosexual.com/wp-content/uploads/2012/03/Genderbread-2.1.jpg"
],
[]
] | |
44uubw | How much better off were the Irish before they were controlled by the English? | I often hear about the abuse the Irish suffered once Ireland was under English control, and how they lived in pretty consistent poverty at that time, but how was life in Ireland before it was controlled by the English? Was it much better? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/44uubw/how_much_better_off_were_the_irish_before_they/ | {
"a_id": [
"cztbm6x",
"cztetga"
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"score": [
2,
2
],
"text": [
"I will disregard the gross generalisations inherent in the question, as well as the inaccuracies, both in History and in terminology, but I do urge you to think more carefully about the context, rather than accepting as trut... | [] | [] | [
[],
[]
] | |
2ry24x | Bayonet charges vs bayonet *battles* | While researching a bit about the usage of bayonets throughout their history, I've found multiple accounts that show that bayonet charges were mostly just used as a last-ditch effort or scare tactic. As far as I can tell, there were never any actual bayonet *battles*. In the early days, one side would affix bayonets, c... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2ry24x/bayonet_charges_vs_bayonet_battles/ | {
"a_id": [
"cnkiwvy",
"cnkluat",
"cnl015u"
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"score": [
3,
2,
2
],
"text": [
"During the Battle of Borodino, the Russians set up several heavy fortifications on the Radevsky redoubt in order to force the French into an attritional battle rather than a battle of movement that was ... | [] | [] | [
[],
[],
[]
] | |
1pi0pc | Scientists confirmed that z8_GND_5296, the farthest galaxy ever discovered, is 30 billion light years away. The age of the universe is estimated at around 13.8 billion years. How is light from z8_GND_5296 reaching our telescopes if it takes its light 30 billion years to reach us? | askscience | http://www.reddit.com/r/askscience/comments/1pi0pc/scientists_confirmed_that_z8_gnd_5296_the/ | {
"a_id": [
"cd2qe35"
],
"score": [
8
],
"text": [
"The universe expanded while the light was coming from that gallaxy to us, so the space in between became larger throught the light's trip, the light also expanded and became red shifted.\n\nin a simpler way: the distance is 30 billion light years... | [] | [] | [
[]
] | ||
5gjk5u | why are perfume commercials so goddamn weird?! | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5gjk5u/eli5_why_are_perfume_commercials_so_goddamn_weird/ | {
"a_id": [
"dasrx08",
"dasrycf",
"dass09f",
"dastu12",
"dasugg2",
"dasvc5o",
"dasz2rh",
"dat2tmh",
"dat2zf7",
"dat34ur",
"dat389m",
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"dat3ivt",
"dat3n93",
"dat3qip",
"dat3yu4",
"dat4ifd",
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"dat52bk",
"d... | [] | [] | [
[],
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[],
[],
[],
[],
[
"https://www.youtube.com/watch?v=WzTSE6kcLwY",
"https://www.youtube.com/watch?v=soAO14BXAZU",
"https://www.youtube.com/watch?v=UWkxd9KJ1uk",
"https://www.youtube.com/watch?v=n0wLsmwiIRQ",
"https://www.youtube.com/watch?v=TfJJeVHt57o",
"https://www.youtub... | ||
605c6n | why do people tend to snap their fingers when trying to recall something? | Does it have to do with the sound or rhythm of the snapping that helps us remember things? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/605c6n/eli5_why_do_people_tend_to_snap_their_fingers/ | {
"a_id": [
"df3op3z"
],
"score": [
6
],
"text": [
"nothing to do with anything. it's learned behavior. it is only done by people who have been exposed to other people doing it. stop next time you're doing it and ask yourself why. you'll have your answer. you're doing it so the person you're snapp... | [] | [] | [
[]
] | |
358nqs | why does cartoon network (and to some extent other networks) have its logo onscreen constantly? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/358nqs/eli5_why_does_cartoon_network_and_to_some_extent/ | {
"a_id": [
"cr22e29"
],
"score": [
2
],
"text": [
"It is to identify the source if it is played at some other time. For people watching it it is just an ad but for, say, a theater showing it it is evidence that they aren't necessarily using a legal source."
]
} | [] | [] | [
[]
] | ||
3ak26l | why do well-fed pets still scarf down their food in one big bite? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3ak26l/eli5_why_do_wellfed_pets_still_scarf_down_their/ | {
"a_id": [
"csdbtbl"
],
"score": [
2
],
"text": [
"Same reason people overeat.\n\nWe are genetically programmed to act as though food is scarce. We eat as much as we can as fast as we can, so we have the calories to go without for a few days. Our bodies don't know food is so abundant that is no... | [] | [] | [
[]
] | ||
387db9 | why does the troposphere move faster than earth? | It takes the troposphere 2-3 weeks to move eastwards once around the globe.
It takes the globe 1 day to rotate around its own axis, so when earth has spun 14 (21) times, the troposphere has spun 15 (22) times - making it at least 5% faster.
What am I missing? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/387db9/eli5_why_does_the_troposphere_move_faster_than/ | {
"a_id": [
"crt3v9d"
],
"score": [
2
],
"text": [
"The atmosphere does not rotate faster than the earth. You appear to be looking at a small segment of the atmosphere: the prevailing westerlies in the lower troposphere in the temperate regions of the planet and attributing that motion to the whol... | [] | [] | [
[]
] | |
1ghcoy | Why are unripe pineapples toxic? | askscience | http://www.reddit.com/r/askscience/comments/1ghcoy/why_are_unripe_pineapples_toxic/ | {
"a_id": [
"caki3rv"
],
"score": [
2
],
"text": [
"Because bromelain. Cf. _URL_0_"
]
} | [] | [] | [
[
"http://www.nlm.nih.gov/medlineplus/druginfo/natural/895.html"
]
] | ||
6zlyyb | Does battery charging time also decrease with battery capacity? | askscience | https://www.reddit.com/r/askscience/comments/6zlyyb/does_battery_charging_time_also_decrease_with/ | {
"a_id": [
"dmwmjty"
],
"score": [
6
],
"text": [
" > Does battery charging time also decrease with battery capacity?\n\nIf you charge at the same current and voltage, yes. But this will be more a limitation of the charger than the battery.\n\nIf you charge at the same rate relative to capacity ... | [] | [] | [
[]
] | ||
48vdic | what is actually happening when you "charge" something that is glow in the dark? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/48vdic/eli5_what_is_actually_happening_when_you_charge/ | {
"a_id": [
"d0mvw61",
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"d0mwe5t",
"d0n02we",
"d0n51hq"
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168,
2,
18,
2,
5
],
"text": [
"The chemical bonds in the glowing component can temporarily store energy and then release it at a constant rate. When \"charging\" it, you're exposing the ... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Photoluminescence"
],
[],
[],
[]
] | ||
1xjwhl | Are certain parts of the universe expanding faster than others? | If not, is it possible? | askscience | http://www.reddit.com/r/askscience/comments/1xjwhl/are_certain_parts_of_the_universe_expanding/ | {
"a_id": [
"cfc4wut"
],
"score": [
2
],
"text": [
"So the expansion of the Universe is linear in distance from the observer. V=Ho*D\n\nSo the further the object is from Earth, the faster it is receding. So in that sense, yes, things are expanding away from us with different speeds.\n\nBut remembe... | [] | [] | [
[]
] | |
8taia4 | When it became public knowledge that asbestos was harmful to humans, what was the reaction of the U.S. workforce? Was there a massive wave of scientific denial on par with today's society? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8taia4/when_it_became_public_knowledge_that_asbestos_was/ | {
"a_id": [
"e16ncfu"
],
"score": [
95
],
"text": [
" can you expand on what exactly you mean by\n\n > scientific denial on par with today's society"
]
} | [] | [] | [
[]
] | ||
67a41w | how does organ compatibility work? | I'm curious as to how organ compatibility works, and why? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/67a41w/eli5how_does_organ_compatibility_work/ | {
"a_id": [
"dgowszz"
],
"score": [
2
],
"text": [
"Multiple factors go into testing if someone is compatible for receiving an organ. The two major tests that must be done are testing for Rh/blood type and Major Histocompatibility complex (MHC). Think of MHC's as a flag that cells show to the body... | [] | [] | [
[]
] | |
2a2ez1 | if the us is allied with saudi arabia, why did we topple saddam hussein and replace him with a cia trained shia who is allied with iran? | Why did we install Maliki? Seems like he is obviously not aligned with American interests. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2a2ez1/eli5if_the_us_is_allied_with_saudi_arabia_why_did/ | {
"a_id": [
"ciqtm68"
],
"score": [
8
],
"text": [
"For better or for worse the Americans did in fact install a democratic government. As a result, the Americans could not just \"install\" their preferred candidate for PM.\n\nAfter the civil war, the Americans decided the Iraqi political system ne... | [] | [] | [
[]
] | |
d8daam | how is interplanetary internet ever going to be possible, even if it does, what could be the possible bandwidth someone would get? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d8daam/eli5_how_is_interplanetary_internet_ever_going_to/ | {
"a_id": [
"f19muu6",
"f19q8s8"
],
"score": [
7,
3
],
"text": [
"Bandwidth isn't the issue, it's latency. A nice laser or microwave beam could carry a lot of information at a very high bandwidth, but the minimum speed-of-light round trip time Earth to Pluto is 10 hours.",
"There is a... | [] | [] | [
[],
[]
] | ||
1zv18j | Was America the first democracy in the west since the rise of Roman Emperors? | After Ceaser came to power in Rome as an emperor, was democracy ever practiced in the west until the American Revolution? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1zv18j/was_america_the_first_democracy_in_the_west_since/ | {
"a_id": [
"cfxb3go"
],
"score": [
21
],
"text": [
"No. This answer really depends on how you define a \"democracy\", but there have been a number of governments that could qualify:\n\n* The [Althing](_URL_0_) of the Icelandic Commonwealth, founded in 930.\n\n* The [Tuath](_URL_3_) of medieval Ir... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Althing",
"http://en.wikipedia.org/wiki/Corsican_Republic",
"http://en.wikipedia.org/wiki/Glorious_Revolution",
"http://en.wikipedia.org/wiki/T%C3%BAath",
"http://en.wikipedia.org/wiki/De_Montfort%27s_Parliament"
]
] | |
6gg94z | why do cops pull you over then ask you if you know why they pulled you over? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6gg94z/eli5_why_do_cops_pull_you_over_then_ask_you_if/ | {
"a_id": [
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"diqc47h",
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"diqdlw2",
"diqdnvi",
"diqdsoj",
"diqdtt8",
"diqdvnw",
"diqe1ph",
"d... | [] | [] | [
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1nytmd | Can anyone date this photograph from the late 19th century? | I know [this photograph](_URL_0_) was taken sometime between 1870 and 1920, but if anyone can date it within 10 or even 5 years, it would be much appreciated. The group is a Swedish middle-glass immigrant family and it could have been taken in the United States or back in Sweden.
| AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1nytmd/can_anyone_date_this_photograph_from_the_late/ | {
"a_id": [
"ccncadh"
],
"score": [
12
],
"text": [
"I would venture to guess the early 1900s or 1910s - the high collars worn by the women were popular during those years, and the lack of both puffed arms and large (at least to the rear) crinolines indicate it is not the 1880s or the 1890s.\n\nIt... | [] | [
"http://imgur.com/o4kIDnJ"
] | [
[]
] | |
2t7fjp | What was the biggest pre-Nulcear explosion? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2t7fjp/what_was_the_biggest_prenulcear_explosion/ | {
"a_id": [
"cnwfny0"
],
"score": [
5
],
"text": [
"I assume we're talking about man made explosions as opposed to natural. If the latter, a volcano is the likely suspect. \n\nHaving asked this question myself, the answer I have most often found is no one is sure. Most of the leading candidates we... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Largest_artificial_non-nuclear_explosions",
"http://www.thebraziltimes.com/story/1284412.html",
"http://www.gendisasters.com/data1/in/explosions/fontanet-explosion-oct1907.htm"
]
] | ||
81g4ov | how it is possible to have a cellphone conversation with a person on the other side of the planet in near real time... | How are the signals able to travel so quickly as to seem nearly instantaneous? I would understand if it was light, but aren't cell signals more akin to sound waves? Sorcery I say... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/81g4ov/eli5how_it_is_possible_to_have_a_cellphone/ | {
"a_id": [
"dv2xukf"
],
"score": [
7
],
"text": [
"No, they are radio waves.\n\nSound waves are matter moving and compressing, just like a physical water wave.\n\nLight, radio waves, and the like, are electromagnetic waves that travel at the speed of light."
]
} | [] | [] | [
[]
] | |
15pnzc | When I shift into a lower gear while going down a hill and my car starts to slow down, where is the energy going? | askscience | http://www.reddit.com/r/askscience/comments/15pnzc/when_i_shift_into_a_lower_gear_while_going_down_a/ | {
"a_id": [
"c7onmq6"
],
"score": [
9
],
"text": [
"It compresses the intake air, and due to losses to heat and mechanical inefficiencies it loses energy to the engines cooling system and heat through the exhaust. "
]
} | [] | [] | [
[]
] | ||
6tysae | There's a stereotype that a lot of Victorian women would wear lots of, and difficult to move in clothing. How would one use the bathroom while wearing such attire? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6tysae/theres_a_stereotype_that_a_lot_of_victorian_women/ | {
"a_id": [
"dloo02z"
],
"score": [
15
],
"text": [
"The answer is actually quite simple: they wouldn't take any of it off.\n\nPantlike underwear was only gradually taking hold in the early Victorian era. We simply don't have the sources to know exactly how many women were wearing drawers (an unde... | [] | [] | [
[
"http://collections.lacma.org/node/214498",
"http://www.metmuseum.org/art/collection/search/158415"
]
] | ||
43o8k9 | does temple run use gyroscope or accelerometer ? can you explain the differences between them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/43o8k9/eli5_does_temple_run_use_gyroscope_or/ | {
"a_id": [
"czjmkx1"
],
"score": [
2
],
"text": [
"A gyroscope measures orientation (under what angles is your phone being held), a accelerometer measures acceleration (how fast is your phone moving). A game like Temple Run uses your gyroscope, since it has to know if you're leaning your phone to... | [] | [] | [
[]
] | ||
bmca93 | Why was the RBMK model reactor (that the Chernobyl power plant reactors were designed as) reputed to be so safe compared to other models? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/bmca93/why_was_the_rbmk_model_reactor_that_the_chernobyl/ | {
"a_id": [
"emwe337"
],
"score": [
2
],
"text": [
"Do you have a citation or context for that claim? I'm not aware of that being a prominent selling point of the RBMK-1000 design as it was rolling out."
]
} | [] | [] | [
[]
] | ||
39wzdz | How did Marco Polo survive incredibly long journeys? | Obviously he couldn't take a multi-week long supply of food & water with him | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/39wzdz/how_did_marco_polo_survive_incredibly_long/ | {
"a_id": [
"cs77pzb",
"cs7idnz",
"cs7sqe8"
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"score": [
56,
10,
4
],
"text": [
"The Silk Road and other trading routes were very in existence at the time of Polo's journey and would have provided markets, towns, and cities for him to utilize along the _URL_0_ would have been a di... | [] | [] | [
[
"way.It"
],
[],
[]
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785m24 | the genetics of haemophilia a. | Why do people get Haemophilia A? What happens at the genetic level that makes suffers bleed so much? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/785m24/eli5_the_genetics_of_haemophilia_a/ | {
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"text": [
"When you get a cut, it blood can leave at the site of the injury. If this kept happening, it would be bad, because you'd lose a lot of blood. The body has ways to stop this from happening, and we call this clotting. It's the body's way to sort of... | [] | [] | [
[]
] | |
d4e1q1 | how/why do people get tingles and some don’t on asmr | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d4e1q1/eli5_howwhy_do_people_get_tingles_and_some_dont/ | {
"a_id": [
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"text": [
"It is unknown because as of yet we don't know what precisely creates ASMR so we can't say why some do and some don't get it at a particular time, however it may be related to childhood and the relaxing sound or environment t... | [] | [] | [
[
"https://youtu.be/kSQQf0ZNEbc"
],
[]
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1xak4c | how is there wifi on buses (ie. megabus) and not on airplanes? | Are planes just too high to access towers on the ground? Is that even how buses do it?
THANKS!! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1xak4c/eli5_how_is_there_wifi_on_buses_ie_megabus_and/ | {
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"text": [
"There is WiFi on many planes. The reason there wasn't for a ling time after buses got it is for safety concerns.",
"Some planes have wi-fi. [It ended badly.](_URL_0_)"
]
} | [] | [] | [
[],
[
"https://www.youtube.com/watch?v=5JNwuYQI6Zs"
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2d6ujn | How does the energy density of sperm whale oil compare to gas? | askscience | http://www.reddit.com/r/askscience/comments/2d6ujn/how_does_the_energy_density_of_sperm_whale_oil/ | {
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"According to [wikipedia](_URL_1_), winter-strained sperm oil is roughly two-thirds wax esters (chiefly cetyl palmitate) and one third triglycerides (three fatty acids held together by a glycerol molecule).\n\nIf kerosene wax (paraffin) and food f... | [] | [] | [
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"http://physics.info/energy-chemical/",
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6gcmmo | How were new/reserve divisions raised, activated, staffed, and trained during WWII? | So in the interwar period, the US Army was smaller than the Swiss, but ballooned to one of the most powerful in the world by the end of the war. Where did the Army get/train the cadre who would train and organize the incoming conscripts? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6gcmmo/how_were_newreserve_divisions_raised_activated/ | {
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"There were several methods of filling out newly-created divisions. The Organized Reserve, first created in 1908 as the Medical Officers' Reserve Corps and then expanded to the whole Army, consisted of a pool of trained officers and men that could... | [] | [] | [
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"https://www.reddit.com/r/AskHistorians/comments/4yrj2r/ww2_ive_heard_contradicting_reports_on_how/",
"https://www.reddit.com/r/AskHistorians/comments/561vrb/what_was_boot_campmilitary_training_like_during/"
]
] | |
45j1fe | difference between microcontroller and microprocessor | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/45j1fe/eli5difference_between_microcontroller_and/ | {
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"A microcontroller is a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output... | [] | [] | [
[],
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"http://www.quantumpicture.com/Flo_Control/flo_control.htm"
],
[],
[],
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2b0mdy | what do ukrainian separatists have to gain by shooting down a malaysian passenger plane? | I hear everyone talking about the ramifications, etc. I haven't heard anyone explain why they would do it in the first place. It makes absolutely zero sense to me. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2b0mdy/eli5_what_do_ukrainian_separatists_have_to_gain/ | {
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f80gzp | is it normal to have a ring of orange around each of my pupils? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f80gzp/eli5_is_it_normal_to_have_a_ring_of_orange_around/ | {
"a_id": [
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"score": [
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"text": [
"Go to the doctor. It may be something called Kayser–Fleischer rings, which are a symptom of Wilson's disease. This is a genetic condition which causes a build up of copper in the body and in the long term can cause liver, brain or kidney damage."... | [] | [] | [
[]
] | ||
1btxqk | How does homosexuality get passed on through genetics if homosexuals do not create offspring? (This is not a loaded question. Please do not delete.) | askscience | http://www.reddit.com/r/askscience/comments/1btxqk/how_does_homosexuality_get_passed_on_through/ | {
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... | [] | [] | [
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"http://en.wikipedia.org/wiki/Kin_selection"
],
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[],
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"http://www.redorbit.com/news/health/1112746818/homosexual-epigenetics-gene-expression-121212/"
],
[
"http://ilsimplicissimus2.files.wordpress.com/2... | ||
3tr5je | Is it possible for life to be living UNDER the oceans? | With the billions of dollars spent to explore Mars and other space related things, it's interesting to me just how little we have explored beneath us. Is it because we know for 100% fact there is nothing below worth exploring? | askscience | https://www.reddit.com/r/askscience/comments/3tr5je/is_it_possible_for_life_to_be_living_under_the/ | {
"a_id": [
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"score": [
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"text": [
"There is neither energy not space for an ecosystem like *Journey to the Center of the Earth*.\n\nHowever, there are cracks and microscopic hollows in the rocks. Even without sunlight or food there are still bacteria living d... | [] | [] | [
[
"http://www.bbc.com/news/science-environment-30489814"
],
[
"http://www.sciencemag.org/content/349/6246/420",
"http://www.nature.com/ncomms/2014/141126/ncomms6497/full/ncomms6497.html",
"http://www.sciencedirect.com/science/article/pii/S0923250802013608"
]
] | |
3kwxl7 | How come every native religion in Europe - Norse, Slavic, Hellenic, Baltic etc - got wiped out by Christianity? Why were they all so weak? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3kwxl7/how_come_every_native_religion_in_europe_norse/ | {
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"text": [
"First, it's important to recognize that in most cases it took centuries, if not a full millennium, for these traditions to be fully u... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/38o4wb/did_pockets_of_paganism_survive_in_medieval/"
],
[
"http://www.britannica.com/biography/Wladyslaw-II-Jagiello"
],
[],
[],
[],
[]
] | ||
59a0vr | how is it that men can ejaculate after a vasectomy but not get women pregnant? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/59a0vr/eli5how_is_it_that_men_can_ejaculate_after_a/ | {
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"score": [
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8,
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"text": [
"Because the tube that carries the sperm from the testicles is cut, or tied shut. Therefore their ejaculate contains no sperm cells, so fertilization of an ovum cannot occur.",
"There are two branch... | [] | [] | [
[],
[],
[]
] | |
1lssve | what would happen if the sahara desert were to receive regular, moderate rainfall for the next year (local ecological changes and/or global ones)? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1lssve/eli5_what_would_happen_if_the_sahara_desert_were/ | {
"a_id": [
"cc2hc2p"
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"score": [
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"text": [
"This is actually a very good question I would like to see a good answer for.\nThe only thing I expect is that there would be growth of plants all over the place, but I might be uterly wrong."
]
} | [] | [] | [
[]
] | ||
1c8fck | Did people in the early 1900s only wear suits when they werent working? | I know this seems like a dumb question but here it is.
Part of me thinks that photos were so rare that they dressed up for them to be taken.
But I am also unsure of how much of a variety of clothes they had to choose from.
Thanks | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1c8fck/did_people_in_the_early_1900s_only_wear_suits/ | {
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"text": [
"While i don't have any definitive answers on the clothing that anyone wore in the early 20th century, i have seen a good amount of early videos [like this one](_URL_0_) which depict people of all ages and occupations walking... | [] | [] | [
[
"http://www.youtube.com/watch?v=Aps1AoljI_k",
"http://www.youtube.com/watch?feature=player_detailpage&v=Aps1AoljI_k#t=234s"
],
[
"http://www.youtube.com/watch?v=IsrdkySRSCY",
"http://www.youtube.com/watch?v=oubsaFBUcTc"
]
] | |
1acu0a | what are "whale trades" that jp morgan did in london and lost $$$? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1acu0a/eli5_what_are_whale_trades_that_jp_morgan_did_in/ | {
"a_id": [
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"score": [
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"text": [
"JP Morgan had a trader in London, Bruno Iskil, that was known for making extremely large bets on the stock market using very complex ways of making trades. Bets so complicated even his bosses had no idea what he was doing. The trades themselves... | [] | [] | [
[]
] | ||
crpbl4 | what is the reason for certain guns to not have a safety? | Every now and then in tv and movies someone will get a gun and someone else will say “careful there’s no safety on it” or something of the sort and I never knew the reasoning of it. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/crpbl4/eli5_what_is_the_reason_for_certain_guns_to_not/ | {
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"text": [
"All big brand name guns have safeties, sometimes several in fact. What you may be referring to is the fact that some guns don’t have external safeties, which is the “lever” which c... | [] | [] | [
[],
[],
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4dcgkg | How did Trotsky get former Tsarist officers to serve in the Red Army in the Russian Civil War? | In *Red Victory* W. Bruce Lincoln says that as Commisar for War, Leon Trotsky recognized that the Bolsheviks did not have the expertise to lead the Red Army, and he would have to get former Tsarist officers to lead the Red Army.
How did he get these officers to serve?
Prior to the February and October revolutions, wh... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4dcgkg/how_did_trotsky_get_former_tsarist_officers_to/ | {
"a_id": [
"d2vlcyn"
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"score": [
2
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"text": [
"First of all, apologies. I've had this question on the back-burner for some time, but I'm finally getting around to answering it.\n\nFirst of all, what was the political sense of the Russian officer class before the revolutions? You might say t... | [] | [] | [
[]
] | |
7l0988 | why does having the “high ground” on a combat its an advantage? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7l0988/eli5_why_does_having_the_high_ground_on_a_combat/ | {
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"Simple: Higher viewpoint and better ability to defend.\n\nTry looking up and fighting up a... | [] | [] | [
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3agjz3 | why is the "follow through" in sports like golf or basketball so important? | Why in basketball or golf, for example, the follow through is so important? Once you impact, does it really matter if you flick your wrist all the way through, or finish your swing after impact? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3agjz3/eli5why_is_the_follow_through_in_sports_like_golf/ | {
"a_id": [
"cscf8h1",
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"score": [
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"text": [
"If you stop right when you hit the ball, your muscles have slowed down your arms already. Youre getting a less solid hit. Also, youre fighting momentum, which stresses the body. Follow through and t... | [] | [] | [
[],
[],
[]
] | |
6qhum3 | what are those swarms of bugs actually doing when they seem to just be flying around in a small area? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6qhum3/eli5_what_are_those_swarms_of_bugs_actually_doing/ | {
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"Could be for various reasons, depends on the situation, species, etc.\n\nUsually it's somewhere with a damp breeze (downwind of a river or pond), and food... | [] | [] | [
[],
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] | ||
aes1bv | can the light passed through a prism be split or refined further? | Once light passes through a prism, does it become the purest form of the ROYGBIV colors or is there a way to purify the colors further? What would happen if let’s say the red light beam was passed through yet another prism? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/aes1bv/eli5_can_the_light_passed_through_a_prism_be/ | {
"a_id": [
"eds157t",
"edsqqvc"
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8,
6
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"text": [
"If red light passes through a prism then red light exits the prism. If you pass any color of light through a prism that's not white light then you will see black bars in the ROYGBIV spectrum where certain wavelengths are mis... | [] | [] | [
[],
[]
] | |
2uqen1 | Can you fertilize a human egg with another egg? | Or more specifically, with the genetic material from an egg? | askscience | http://www.reddit.com/r/askscience/comments/2uqen1/can_you_fertilize_a_human_egg_with_another_egg/ | {
"a_id": [
"coax7i4"
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"score": [
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"text": [
"[Hypothetically, yes. It's been done with mice](_URL_0_)"
]
} | [] | [] | [
[
"http://www.newscientist.com/article/dn4909-virgin-birth-mammal-rewrites-rules-of-biology.html#.VNI0O2R4rKA"
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] | |
bxz3gi | What would happen to the atmosphere if the oceans level raised hundreds of feet? | Sup science people. So, I'm writing a story - and wanting to keep it as close to scientifically accurate as I can (it's sci-fi, not realism). In the story, the sea level raises tremendously. Now, the guys in a sub right? so my first instinct was to have him notice the pressure from the barometric altimeter, and thus r... | askscience | https://www.reddit.com/r/askscience/comments/bxz3gi/what_would_happen_to_the_atmosphere_if_the_oceans/ | {
"a_id": [
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"score": [
4,
2
],
"text": [
"The local atmospheric pressure change due to a very sudden sea level rise would be very small, and indistinguishable from normal variation.\n\n & #x200B;\n\n\"Barometric altimeter\" isn't a thing underwater. But, if you mea... | [] | [] | [
[],
[]
] | |
5r9682 | how come the us president can sign orders without input from congress? isn't thay undemocratic? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5r9682/eli5_how_come_the_us_president_can_sign_orders/ | {
"a_id": [
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"text": [
"Congress gives the president broad latitude over many areas of the federal government. The President can then use executive orders to exercise the powers granted to him by Congress.\n\nImagine Congress passes a law to build a house. All it says... | [] | [] | [
[]
] | ||
m226y | middleware | Middleware? What does it do? The whole 'software occupying a middle
position between application programs and operating systems' doesn't really make sense to me. Windows and MS Word has something in between that makes it work? If so, where does it come from (is it installed with Windows, or with MS Word?)? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/m226y/eli5_middleware/ | {
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3,
2,
3,
2
],
"text": [
"Middleware has no real solid definition and gets used differently in various contexts. But put simply: Software developers realise that they can save a lot of time and money by get... | [] | [] | [
[],
[],
[],
[]
] | |
64b1vp | why do our eyes not see color on the edge of our peripheral vision? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/64b1vp/eli5_why_do_our_eyes_not_see_color_on_the_edge_of/ | {
"a_id": [
"dg0r2c5",
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"score": [
2,
2
],
"text": [
"We have two kinds of light receptors in our eyes: rods and cones. Rods are more sensitive to black and white; cones are more sensitive to colors and have a higher ability to focus. \n\nCones are more concentrated in the cent... | [] | [] | [
[],
[]
] | ||
5wbmvg | the act of hydration and how drinking water gets distributed through the body and utilized? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5wbmvg/eli5_the_act_of_hydration_and_how_drinking_water/ | {
"a_id": [
"de8t87f"
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"score": [
2
],
"text": [
"Water and other nutrients get absorbed through the walls of the intestines. From there the water enters into the blood stream, where it is carried back to the heart and pumped throughout the body. \n\nThis process takes advantage of osmosis, whic... | [] | [] | [
[]
] | ||
mtxz2 | Can spinning electromagnetic fields produce energy? | If so, what effects the amount of energy produced? Given ample technology, could this energy be harnessed and utilized? | askscience | http://www.reddit.com/r/askscience/comments/mtxz2/can_spinning_electromagnetic_fields_produce_energy/ | {
"a_id": [
"c33tjqr",
"c33tjqr"
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"score": [
3,
3
],
"text": [
"I am not sure of what's your exact question, but *nothing* can produce energy. This violates the principle of conservation of energy (or mass-energy, if you want to be picky). \n\nIf you are thinking of the [electric generat... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Electric_generator"
],
[
"http://en.wikipedia.org/wiki/Electric_generator"
]
] | |
1ecns6 | d-day and the events leading up to it | I'm writing an essay on Juno beach but I'm having trouble understanding why the Invasion of Normandy was necessary. I think if I had basic understanding first, the research would be much easier. Thanks in advance! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1ecns6/eli5_dday_and_the_events_leading_up_to_it/ | {
"a_id": [
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3,
5
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"text": [
"It was necessary because Stalin had been loudly (and justly, though he apparently didn't understand the tremendous effort required to actually *do* such a thing) demanding a second front against the Germans for three years. ... | [] | [] | [
[],
[]
] | |
18ld97 | Can anyone tell me anything about this unique pistol powder flask? | Happy Friday r/askhistorians!
I recently acquired a pistol powder flask, and I have never seen one quite like it.
_URL_0_
It appears to be made of brass. The string looks like jute twine and the vent prick is hammer forged though it may be difficult to tell from the pictures. Have any of you ever seen another flask... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/18ld97/can_anyone_tell_me_anything_about_this_unique/ | {
"a_id": [
"c8fwbzr"
],
"score": [
2
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"text": [
"Try xposting to /r/whatisthisthing"
]
} | [] | [
"http://imgur.com/a/IJEoz"
] | [
[]
] | |
45pyi8 | What is the inner relationship between conic curves and gravitation? Does this mean a gravitational field curves space in the shape of a cone? | Been googling this finding no specific answer. If all trajectories subject to gravitation are either an ellipse, a parabola or a hiperbola (ie intersections of plane and cone) does it mean space is full of cone shaped alterations? Is this too simplistic? | askscience | https://www.reddit.com/r/askscience/comments/45pyi8/what_is_the_inner_relationship_between_conic/ | {
"a_id": [
"d00enw6"
],
"score": [
2
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"text": [
"If you literally think gravity is a cone-shaped deal, it's not... kinda.\nIt is, however, a representation of the same thing, in 3 dimensions. This means that your elevation won't change as you go \"into\" the field, but you will be accelerating ... | [] | [] | [
[
"http://assets3.bigthink.com/system/idea_thumbnails/39895/primary/spacetime.png?1314196805",
"https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Conic_Sections.svg/300px-Conic_Sections.svg.png",
"https://bsturge93.files.wordpress.com/2014/02/gravity.jpg"
]
] | |
40evfv | how can someone die from one punch while ufc fighters and professional boxers can take hundreds of blows to the head and recover fairly quickly? | This [video](_URL_0_) got me thinking. How can someone kill someone with just one punch? Is it only possible if the person has some other underlying condition? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/40evfv/eli5_how_can_someone_die_from_one_punch_while_ufc/ | {
"a_id": [
"cytnv37"
],
"score": [
2
],
"text": [
"Professional athletes are tested for heart conditions and other things before every fight. They have to pass these tests medically for them to fight. I think this was more from him smacking his head on the ground hard when he fell backwards. "
... | [] | [
"http://www.liveleak.com/view?i=a25_1452289847"
] | [
[]
] | |
7486dj | Why does the US Army have very few types of dedicated Anti-Aircraft assets compared to the Soviet Union/Russia? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7486dj/why_does_the_us_army_have_very_few_types_of/ | {
"a_id": [
"dnwes14"
],
"score": [
6
],
"text": [
"I second the request for clarification by /u/40kfreak, but the way I understand the question in its present form is that while the Soviets had a plethora of mobile SAM and AAA systems, such as the Krug, Kub, Shilka, Osa etc., the US Army doesn’t.... | [] | [] | [
[]
] | ||
1sj2q4 | there are an infinite amount of numbers between 0 and 1. that means there is an infinite amount of numbers between 1 and 2. why isn't there two times infinity amount of numbers between 0 and 2? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1sj2q4/eli5_there_are_an_infinite_amount_of_numbers/ | {
"a_id": [
"cdy2zrp",
"cdy3273",
"cdy3bgn"
],
"score": [
7,
5,
3
],
"text": [
"Because infinity isn't itself a number.",
"Infinity is just a word, meant to represent an idea. If your brother has 4 widgets and your sister has 5 widgets, you can take all the widgets from your b... | [] | [] | [
[],
[],
[]
] | ||
2eu7uz | why are sites like google and facebook (and others) so intent on pushing video content? a lot of people don't want it, and it must be expensive to host | I've heard that google and facebook prioritize content in the order: video, then pictures, then text.
Videos pop up in most google searches these days and it seems like half of what I see in my facebook feed are videos, but (at least on fb) they don't get a lot of likes or comments and a lot of people complain about ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2eu7uz/eli5_why_are_sites_like_google_and_facebook_and/ | {
"a_id": [
"ck2ymzm",
"ck32ziy",
"ck3alae"
],
"score": [
4,
2,
2
],
"text": [
"Google and Facebook are advertising companies. Advertisements appear within and beside videos. Videos keep viewers' attention longer than photos or text, and viewers are in a more passive state while wa... | [] | [] | [
[],
[],
[]
] | |
4rf0ee | What species of the Homo genus were the first to wear clothes, and do clothes predate modern humans? | I've tried to read up on clothing as a part of human culture and its implication on our views of the civilized vs the uncivilized. Whilst doing some own research i found sources claiming that people started wearing clothes between [100.000 to 500.000 years ago](_URL_0_) and that modern humans / Homo Sapiens has been ar... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4rf0ee/what_species_of_the_homo_genus_were_the_first_to/ | {
"a_id": [
"d51g80a"
],
"score": [
2
],
"text": [
"Good question, but you might be better off asking /r/askanthropology or /r/anthropology"
]
} | [] | [
"http://inventors.about.com/od/cstartinventions/a/clothing.htm",
"http://www.annualreviews.org/doi/10.1146/annurev.anthro.33.070203.144024"
] | [
[]
] | |
1pph0u | why can't radio stations accept pay for play from record labels but they can take money to play commercials? | Especially when such a huge chunk of time is dedicated to commercials every hour, even on music stations? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1pph0u/eli5_why_cant_radio_stations_accept_pay_for_play/ | {
"a_id": [
"cd4u5nv"
],
"score": [
3
],
"text": [
"Radio stations can accept pay for play. They just have to disclose it. \n\nHere is a brief history: _URL_0_\n\nTL;DR - Big companies buying their way into the markets. Scandal erupts throughout the country. Congress passes law on pay to play disc... | [] | [] | [
[
"http://www.straightdope.com/columns/read/2176/whats-the-story-on-the-radio-payola-scandal-of-the-1950s"
]
] | |
yynpi | what to do/how to act at a casino | I've never really gambled at a casino, only people watched, but I plan on getting some action going my next trip, just want to know the proper etiquette, I know nothing e.g. how do you join a poker or blackjack game, do you tip dealers, do you tip the free drink waitresses, basic table etiquette, the different type of ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/yynpi/eli5_what_to_dohow_to_act_at_a_casino/ | {
"a_id": [
"c5zyz9q",
"c5zz2qz",
"c5zz49s",
"c5zz720",
"c5zzgx1",
"c5zzqbg",
"c5zzwzd",
"c5zzznk",
"c6008mi",
"c6011ho",
"c60142j",
"c601cg2",
"c6024u6",
"c602w9q",
"c60304q",
"c6030yb",
"c603658",
"c603i1s",
"c605emc",
"c605te1",
"c... | [] | [] | [
[],
[],
[
"http://wizardofodds.com/"
],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Blackjack#Basic_strategy"
],
[],
[],
[],
[],
[],
[],
[]
] | |
9pu79j | how does the post office tell if stamps are counterfeit? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9pu79j/eli5_how_does_the_post_office_tell_if_stamps_are/ | {
"a_id": [
"e84b1vn"
],
"score": [
2
],
"text": [
"_URL_0_\n\nNot much security. There's a shine, a special perforation on the side, special paper used, maybe a fluorescent dye. \n\nBut ultimately i think it's biggest defense is it's a high punishment for a small crime that acts to deter people. ... | [] | [] | [
[
"https://www.reddit.com/r/AskReddit/comments/2rc3cd/how_does_the_post_office_know_a_stamp_is_real_is/"
]
] |
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