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 |
|---|---|---|---|---|---|---|---|---|---|
dkxcrl | I'm a Scandinavian peasant in the middle ages. What do I eat at different times of the year? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dkxcrl/im_a_scandinavian_peasant_in_the_middle_ages_what/ | {
"a_id": [
"f4olmxf",
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"score": [
7,
8
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"text": [
"What I wrote in [What did Vikings eat when traveling?](_URL_1_) is in fact mostly based on the written as well as archaeological (both excavated and pollen) medieval evidences rather than the Viking Age proper. \n\nAs for O... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/adsu6j/how_did_the_people_especially_the_noblity_in/",
"https://www.reddit.com/r/AskHistorians/comments/crjo16/what_did_vikings_eat_when_traveling/"
],
[]
] | ||
1bivn4 | Regarding the 10,000-times-faster-than-light finding for quantum entanglement: how do we know the photons are in a superimposed state? | There's been a fair amount of [coverage](_URL_0_) of the first measurement of the speed at which the entanglement of two photons is transmitted (original paper [here](_URL_1_)). How do we know the polarization of each photon was indeterminate until it was observed at the detector? Isn't the simplest explanation that ... | askscience | http://www.reddit.com/r/askscience/comments/1bivn4/regarding_the_10000timesfasterthanlight_finding/ | {
"a_id": [
"c971cny"
],
"score": [
6
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"text": [
"That is called Hidden Variable Theory, and basically there's something called Bell's Theorem that says that if hidden variables play a role then the experimentally observed correlations in these experiments would be different. All experiments thu... | [] | [
"http://www.scientificamerican.com/blog/post.cfm?id=quantum-weirdnes-wins-again-entangl-2008-08-13",
"http://arxiv.org/pdf/1303.0614v1.pdf"
] | [
[]
] | |
7h8iz9 | Why do we assume the core of a black hole has a singularity in it? | Why do we assume the core of a black hole has a singularity in it? How does it make sense that something can be infinitely dense, i.e. have 0 volume? I could understand it if a black hole was an object of finite but extreme density—then its escape velocity would still be stronger than the speed of light, but the laws o... | askscience | https://www.reddit.com/r/askscience/comments/7h8iz9/why_do_we_assume_the_core_of_a_black_hole_has_a/ | {
"a_id": [
"dqpclh5",
"dqpcxw9",
"dqpetp1"
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"score": [
26,
6,
14
],
"text": [
"General relativity comes with a very well defined mathematical framework. We do not \"assume\" that there is a singularity, it is a prediction of general relativity, and it is robust, meaning it will ... | [] | [] | [
[],
[],
[
"https://www.youtube.com/watch?v=oj1AfkPQa6M"
]
] | |
ktt4e | how are we able to control the flight of objects we send to space? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/ktt4e/how_are_we_able_to_control_the_flight_of_objects/ | {
"a_id": [
"c2n674s",
"c2n6aft",
"c2n674s",
"c2n6aft"
],
"score": [
4,
2,
4,
2
],
"text": [
"An object in motion stays in motion, unless it is acted on by another force.\n\nSo, if you push something in space, it will generally keep moving in that direction. The gravity of ... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Gravity_assist"
],
[],
[
"http://en.wikipedia.org/wiki/Gravity_assist"
]
] | ||
fzaftt | why real phenomena like alternating voltage or current are represented by complex numbers? | I asked my friend this and he said, "It's represented in such a way to make calculations easier since writing out it's sinusoidal forms can be tiring." But is it the only explanation? I'm talking about Single Phase AC circuits. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fzaftt/eli5_why_real_phenomena_like_alternating_voltage/ | {
"a_id": [
"fn3xoqf"
],
"score": [
2
],
"text": [
"I agree with your friend, but you're right to question if that's the only reason. Your friend is correct if you've ever tried to simplify a circuit diagram that has RLC components, it is much easier to combine the reactance of the LC components b... | [] | [] | [
[]
] | |
1nkt08 | Why did soldiers keep on fighting during World War I? | As I understand it, the international rivalries mattered little to ordinary soldiers after 1917 or so, especially after the massacres and high death rates at the Somme, Verdun, etc. What made the average soldier keep fighting, and was there an increase in desertions as the war went on? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1nkt08/why_did_soldiers_keep_on_fighting_during_world/ | {
"a_id": [
"ccjiirn",
"ccjiqgd",
"ccjla5d",
"ccjnbxt"
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"score": [
4,
13,
36,
2
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"text": [
"Deserter soldiers that were found out were generally looking at some pretty grizzly punishments. I'd say that's definitely one reason.\n\n[Exhibit A: Field punishment](_URL_1_)\n... | [] | [] | [
[
"http://trish-m.hubpages.com/hub/Firing-Squad-at-Dawn-Executions-in-World-War-One",
"http://www.historytoday.com/sites/default/files/tommy_main.jpg"
],
[],
[
"http://www.bbc.co.uk/history/worldwars/wwone/launch_ani_wwone_movies.shtml",
"http://www.crestock.com/blog/design/german-propaganda-p... | |
p6s7s | how cruise ships produce electricity | I don't know why this thought occurred to me, maybe it's because I'm going on a cruise tomorrow. I remember the last time I was on one and I was able to plug my laptop into a socket and use my laptop, recharge my phone, etc. I'm curious as to how ships produce electricity since they're not connected to a grid. Do they ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/p6s7s/eli5_how_cruise_ships_produce_electricity/ | {
"a_id": [
"c3myybw",
"c3mz77y"
],
"score": [
17,
16
],
"text": [
"Same as a car, essentially - part of the power from the engine is used to drive a generator.",
"Newer cruise ships use diesel-electric drive trains like locomotives. Engines turn huge generators, which then drive elec... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Azimuth_thruster"
]
] | |
appedd | why does sun dried fruit does not rot? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/appedd/eli5_why_does_sun_dried_fruit_does_not_rot/ | {
"a_id": [
"egad6xg",
"eghan0n"
],
"score": [
5,
2
],
"text": [
"Rotting generally happens because of the actions of microbes. \n\nMicrobes, particularly the kinds that like fruit, like moist conditions. They are not adapted to surviving in dry conditions, such as those in dried fruit. ",... | [] | [] | [
[],
[]
] | ||
75sqfw | Did Kaiser Wilhelm II really say this? | “let all who fall into your hands be at your mercy, Gain a reputation like the Huns under Attila”.
I was researching old british newspaper for a history project for school (basically about biases in historical records) and I came across this quote, It sounds incredibly fake and I don't get anything when I google it ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/75sqfw/did_kaiser_wilhelm_ii_really_say_this/ | {
"a_id": [
"do8skel"
],
"score": [
14
],
"text": [
"The actual quote is:\n\n > Should you encounter the enemy, he will be defeated! No quarter will be given! Prisoners will not be taken! Whoever falls into your hands is forfeited. Just as a thousand years ago the Huns under their King Attila made... | [] | [] | [
[
"http://germanhistorydocs.ghi-dc.org/sub_document.cfm?document_id=755"
]
] | |
y1ejq | Have we come any closer to understanding the mind/body problem? | askscience | http://www.reddit.com/r/askscience/comments/y1ejq/have_we_come_any_closer_to_understanding_the/ | {
"a_id": [
"c5rgam3"
],
"score": [
3
],
"text": [
"You should clarify which part of the mind-body problem you are referring to. Working theory is that the mind is a phenomenon that arises from processes in the brain. There are numerous brain damage cases that illustrate this effect. When the br... | [] | [] | [
[]
] | ||
jv7am | Heavy element atoms are scattered by supernovae, so how come gold and silver end up in lumps in the Earth? | Did this happen in the proto-solar-system nebula, does it happen in relatively modern geological time, or somewhere inbetween? Further question, is this an ongoing process within the Earth - were the elements more scattered in the early Earth, and (notwithstanding mining) would they form bigger lumps in a few more bill... | askscience | http://www.reddit.com/r/askscience/comments/jv7am/heavy_element_atoms_are_scattered_by_supernovae/ | {
"a_id": [
"c2fddip",
"c2fg4k4",
"c2fddip",
"c2fg4k4"
],
"score": [
7,
4,
7,
4
],
"text": [
"Elements like gold like to attach itself to other elements and can be extracted from the minerals that are formed from those compounds such as the [Carlin Gold Deposits](_URL_0_). ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Carlin%E2%80%93type_gold_deposit"
],
[],
[
"http://en.wikipedia.org/wiki/Carlin%E2%80%93type_gold_deposit"
],
[]
] | |
2esx0a | why are a majority of currency symbols made from alphabetic letters? eg. $, ¢, ¥, £, ฿, ₩ etc | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2esx0a/eli5_why_are_a_majority_of_currency_symbols_made/ | {
"a_id": [
"ck2mdpa"
],
"score": [
3
],
"text": [
"Some are made from letters that have to do with the name of the denomination, such as the €uro, or ¢ents or ¥en.\n\nBut others, like $ have no apparent connection to the word Dollar. Except that the idea of the dollar originated in the $panish Pe... | [] | [] | [
[]
] | ||
29npim | Agricultural/Peasant Weapons in Northern Europe? | Japan had the nunchaku (rice flail), kama (sickle), and sai (winnowing fork?); England had the bill, flail, maul, and military fork.
Daggers, staves, and axes seem universal.
Did Northern Europe (Finland, Norway, Sweden, Russia, etc.) have any particular regional variations on agricultural or levy weapons? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/29npim/agriculturalpeasant_weapons_in_northern_europe/ | {
"a_id": [
"cimp38h"
],
"score": [
2
],
"text": [
"Most notable in the slavic world was the use of the Bardiche as a standard weapon used by militia soldiers throughout eastern europe as a type of analogue to the Halberd. I would not refer to the Bardiche, a long hafted axe with a curved half-moo... | [] | [] | [
[]
] | |
7mwoz2 | brine mining lithium | I originally wanted to learn how to "mine" lithium, and then I learned that the method of mining lithium is through "brine mining" and the Wikipedia page is extremely dense.
_URL_0_ | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7mwoz2/eli5_brine_mining_lithium/ | {
"a_id": [
"drx8nsd"
],
"score": [
4
],
"text": [
"Basically they pump in salty water which is called brine and the material (lithium in your case) would disolve in it and then get pumped out. They then extract if from the fluid by evaporating it or adding chemicals that would cause it to precipi... | [] | [
"https://en.wikipedia.org/wiki/Brine_mining"
] | [
[]
] | |
1g4fiw | How do we measure the mass of helium/hydrogen? | So obviously everything has mass, so there is a way to measure the mass of helium/hydrogen... But how? I'm guessing we get it through equations like pv=nrt, but I'm still unsure and I've never asked it to anyone before because I feel like it has a simple answer. | askscience | http://www.reddit.com/r/askscience/comments/1g4fiw/how_do_we_measure_the_mass_of_heliumhydrogen/ | {
"a_id": [
"cagmbxb"
],
"score": [
6
],
"text": [
"Machines called mass spectrometers which spin the elements in a circle. The heavier elements fly longer paths while the lighter ones shorter. It’s mainly used to find isotopes, that is, heavier or lighter versions of the same element."
]
} | [] | [] | [
[]
] | |
2dmzgh | Has there ever been an instance of suicide rates noticeably spiking after the death or suicide of a celebrity? | The death of Robin Williams got me curious about it, because as a person suffering from depression, hearing about his suicide made it very difficult for the next day to keep suicide off my mind. I was just curious if there has ever been a noted incident of the suicide rate correlating with celebrity death. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2dmzgh/has_there_ever_been_an_instance_of_suicide_rates/ | {
"a_id": [
"cjr2fgb",
"cjr4scq"
],
"score": [
2,
5
],
"text": [
"I can't speak of rates. However, the death of Rudolph Valentino comes to mind. He died of sudden medical issues, perhaps involving drug use, in 1926. There were widespread reports of mass hysteria and reports that many of hi... | [] | [] | [
[
"http://publicdomainreview.org/collections/rudolph-valentino-1923/",
"http://www.goldensilents.com/stars/rudolphvalentino.html"
],
[
"http://www.jstor.org/discover/10.2307/2094294?uid=3739696&uid=2&uid=4&uid=3739256&sid=21104592934963"
]
] | |
31cimi | why is it that books can stay on store shelves for years and be unharmed, but the second i buy them and put them on my bookshelf, the pages start to yellow? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/31cimi/eli5_why_is_it_that_books_can_stay_on_store/ | {
"a_id": [
"cq0cbzg",
"cq0dpk3",
"cq0drm0",
"cq0heeq"
],
"score": [
8,
11,
5,
4
],
"text": [
"Could it be the 10 packs of cigarettes you smoke indoors everyday?",
"Book stores have specially calibrated air conditioning that keeps the books in perfect condition. They do... | [] | [] | [
[],
[],
[],
[]
] | ||
16olht | Could we "vent" Yellowstone? | Since Volcanos work on a system of pressure, couldn't science devise a way to monitor said pressure and engineer a system of vents into major volcanos and volcanic hot spots. Therefore when an increase of pressure builds up we could lessen the effect and prevent major eruptions. | askscience | http://www.reddit.com/r/askscience/comments/16olht/could_we_vent_yellowstone/ | {
"a_id": [
"c7xvxo9"
],
"score": [
5
],
"text": [
"Not really, no. The caldera under Yellowstone isn't just a pocket of gas that is ready to explode, the energy is stored in the molten material itself, the energy of which comes from the outer core. You would have to find a way to divert the therm... | [] | [] | [
[]
] | |
2qz32u | why does the electric company provides incentives to purchase cfl over incandescent light bulbs? | Doesnt the electric company makes money of off kW/hr? So more usage = more revenue? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2qz32u/eli5_why_does_the_electric_company_provides/ | {
"a_id": [
"cnavm26",
"cnaw06q",
"cnaw0bp",
"cnaxxt0"
],
"score": [
3,
7,
4,
2
],
"text": [
"Government gives power co money (Grants) to reduce emissions/promote energy efficiency, so they don't give them out of their pocket.\n\nAlso, These mobs aren't exactly short of mon... | [] | [] | [
[],
[],
[],
[]
] | |
16lvhl | Why does the light from my laser pointer seem to be "absorbed" by my TV, but not any other surface? | I can see the red dot on all surfaces (including laptop and phone screens), but not the TV screen, at least while it's turned on. | askscience | http://www.reddit.com/r/askscience/comments/16lvhl/why_does_the_light_from_my_laser_pointer_seem_to/ | {
"a_id": [
"c7x7f2z"
],
"score": [
11
],
"text": [
"My guess is that the TV is coated with anti reflective film to lower the reflection from daylight/living room light. But that lower the contrast and therefore it is not used for e.g. phones be cause you need to be able to see the display in bigh... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Matte_display"
]
] | |
9v9lsg | why are so many children books/cartoons based around animals? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9v9lsg/eli5_why_are_so_many_children_bookscartoons_based/ | {
"a_id": [
"e9ae0tm",
"e9ahw1m"
],
"score": [
23,
3
],
"text": [
"It’s easier for kids to relate to and morph subjects that are typically tough into more light-hearted content because they are “animal” problems instead of “human” problems. Anthropomorphism goes a long way. ",
"You see... | [] | [] | [
[],
[]
] | ||
auxv1r | why is the illuminati or new world order viewed as bad? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/auxv1r/eli5_why_is_the_illuminati_or_new_world_order/ | {
"a_id": [
"ehb87to"
],
"score": [
3
],
"text": [
"Simply put, it’s because the idea that a few. vastly wealthy, *unelected* individuals are controlling the majority, if not all, of the worlds states, finances, corporations means there is no accountability. \n\nThey own media outlets so they can ... | [] | [] | [
[]
] | ||
1klhyw | What was the system for mail communication and how reliable was it during the first 200 years of Christianity? | I'm blown away that even a few years later people still had access to the letters the apostles had written.
Was the system taxed? How fast could you send a letter? Government or private regulated? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1klhyw/what_was_the_system_for_mail_communication_and/ | {
"a_id": [
"cbq9s2r",
"cbqk9tl"
],
"score": [
2,
2
],
"text": [
"Under Augustus the Roman Empire had organized a postal service, however this service could only be used for official correspondence or by high-ranking Roman officials. This service would go about 50 miles a day, provided you... | [] | [] | [
[],
[
"http://www.reddit.com/r/AskHistorians/comments/ye776/how_reliable_and_fast_were_postal_services/",
"http://www.reddit.com/r/AskHistorians/comments/1ci526/did_the_romans_have_a_system_of_mail_if_so_how/"
]
] | |
41mesc | why are electric skateboard so expensive? | Why is it that electric skateboards are so expensive however there are things like "hoverboards" that although $500 are literally a third of the price? What makes electric skateboards so expensive, aren't they just some batteries and motors. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/41mesc/eli5_why_are_electric_skateboard_so_expensive/ | {
"a_id": [
"cz3gpor"
],
"score": [
2
],
"text": [
"Electric motors and batteries are expensive. You figure that's a lot of copper windings in the motor, rare earth magnets too. However if you notice, those \"hoverboards\" are actually catching on fire a lot due to cheap manufacturing processes. S... | [] | [] | [
[]
] | |
3slxi0 | what is the difference between a resident physician and a practicing doctor? | As a nursing student, this is something I've always been confused by.
Do resident physicians decide what treatments need to be carried out, and are there specific procedures they cannot do or make the call on? How long do they go through the residency program and what do they have to do to become a licensed practicin... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3slxi0/eli5_what_is_the_difference_between_a_resident/ | {
"a_id": [
"cwyelg6"
],
"score": [
3
],
"text": [
"A resident has finished medical school but has not had the opportunity to specialize or be on their own. Residencies are to give the new MD those opportunities while also being under someone to make sure they don't screw up too much. After a 3+ y... | [] | [] | [
[]
] | |
eqs0d3 | why/how do intravenous medicines leave different tastes in your mouth when given? | I recently had surgery, and noticed distinct tastes in my mouth when I received different medications, as well as when they flushed out the IV (metallic copper taste). How is this as they are not taken orally? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/eqs0d3/eli5_whyhow_do_intravenous_medicines_leave/ | {
"a_id": [
"fewgfid"
],
"score": [
3
],
"text": [
"I did some research on this recently because this taste was causing my mom significant nausea and occasional vomiting during chemotherapy. Basically, some medications have different types of preservatives added to keep the product stable. We noti... | [] | [] | [
[]
] | |
1p4qhm | How accurate is this depiction of Renaissance-era pike battles from the movie Alatriste? | [This](_URL_0_) is the scene in question. I'm somewhat familiar with pike tactics, so I know that the other techniques used are fairly accurate. I'm mostly curious about the roving bands of swordsmen wandering about underneath the locked pikes who were slashing at the legs of the opposing pikemen (you can see them star... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1p4qhm/how_accurate_is_this_depiction_of_renaissanceera/ | {
"a_id": [
"ccz1t3a",
"ccz72df"
],
"score": [
2,
3
],
"text": [
"I don't know that much about the Battle of Rocroi specifically, but my understanding is that soldiers armed with swords and bucklers (\"rodeleros\") were employed by the Spanish, and intended to go under pikes to attack the ... | [] | [
"http://youtu.be/625iTKITRoA"
] | [
[],
[
"http://www.reddit.com/r/AskHistorians/comments/1jgpg7/what_really_happened_in_melee_combat/cbemxkx"
]
] | |
1xtilw | How do coloured glue sticks dry clear? | Some ~~times~~ kinds of glue sticks are intensely coloured, but once you apply them, they become clear. How does that happen? | askscience | http://www.reddit.com/r/askscience/comments/1xtilw/how_do_coloured_glue_sticks_dry_clear/ | {
"a_id": [
"cfen02f",
"cfevdpg",
"cff4x0m"
],
"score": [
6,
2,
3
],
"text": [
"Without knowing the exact composition of the brand you are looking at I will have to remain general. \n\nThere are many possible types of dyes but the color of most industrial dyes are generated by usin... | [] | [] | [
[],
[],
[]
] | |
9krcv4 | what is chirped pulse amplification? | The 2018 Nobel Prize for physics has been awarded for this... and I have no idea what it means | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9krcv4/eli5_what_is_chirped_pulse_amplification/ | {
"a_id": [
"e71j2bn"
],
"score": [
2
],
"text": [
"Basically we've been struggling for a few years to increase the power of the lasers we have. It's been pretty much flat, this research finally got us passed that. \n\n[NPR](_URL_0_) did a story on it. "
]
} | [] | [] | [
[
"https://www.npr.org/2018/10/02/653576926/scientists-from-u-s-canada-france-split-nobel-prize-in-physics-for-laser-work"
]
] | |
1wfssr | onion routing and tor | I would appreciate it if someone could succinctly explain onion routing to me in a way my pea-sized brain could understand. Please and thank you! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1wfssr/eli5_onion_routing_and_tor/ | {
"a_id": [
"cf1kxka"
],
"score": [
3
],
"text": [
"Basically onion routing works like this. You have a long list of entry nodes, and exit nodes.\n\nWhen you start 'onion routing', you connect to an entry node (normally semi-random, which ever has the lowest ping, so geographically), then you'll r... | [] | [] | [
[]
] | |
1laplb | What would cause these strange rings on the weather radar this morning? | It's been 30 degrees in Saskatchewan for a few days now, and a thunder stome was supposed to blow through today (It didn't here) so I thought I would check the radar and see if anything was blowing our way. At first the image was zoomed in on my home town and I didn't notice anything weird until I zoomed out, whereupon... | askscience | http://www.reddit.com/r/askscience/comments/1laplb/what_would_cause_these_strange_rings_on_the/ | {
"a_id": [
"cbxiygg"
],
"score": [
2
],
"text": [
"Radar measurements are taken from fixed stations which scan in a circular pattern, [cutting out a \"cone\" through the atmosphere](_URL_0_) Therefore, when you look at a \"National Radar\" image, it's really a whole bunch of data from different r... | [] | [
"http://i.imgur.com/qXzN5yv.png"
] | [
[
"http://www.nssl.noaa.gov/publications/dopplerguide/chapter2.php",
"http://forecast.weather.gov/jetstream/doppler/baserefl.htm",
"http://www.meteor.iastate.edu/~jdduda/portfolio/How%20to%20read%20and%20interpret%20weather%20radar.pdf"
]
] | |
myqnp | Why do a lot of kids in third world countries, who don't have much food, have a big belly? | Hey r/askscience
Like I said in the title, I have been asking myself this question for quite some time. While their other body parts are thin why is their belly most of the time so big? Is it some side effect if you don't get much food? | askscience | http://www.reddit.com/r/askscience/comments/myqnp/why_do_a_lot_of_kids_in_third_world_countries_who/ | {
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"If I try to explain it myself I'll stumble over the words. _URL_0_",
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36lnm6 | how does your body feed itself when you don't eat food for a smaller period of time? | I am talking about 3-4 days.
I know it takes the resources from your remaining muscles and fat in your body, but how exactly does the process work? How does your body take the resouces? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/36lnm6/eli5_how_does_your_body_feed_itself_when_you_dont/ | {
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"Think of your body as a laptop. When it's plugged in you can use the electricity (food) to run the laptop and it gets everything it needs from being plugged in. However, simultaneously it also charges up and saves some energy in the battery (fat ... | [] | [] | [
[]
] | |
8dqys5 | why is the term "patient zero" instead of "patient one?" | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8dqys5/eli5_why_is_the_term_patient_zero_instead_of/ | {
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"It is a misunderstanding.\n\nThe term comes from research on the early transmission of AIDS. One of the early vectors was Canadian flight attendant Gaëtan Dugas, who in studies was referred to as Patient O (\"oh\", not \"... | [] | [] | [
[],
[]
] | ||
qp1mg | why video game trailers ask for your birthdate, but porn sites are just one-click to get in | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/qp1mg/eli5_why_video_game_trailers_ask_for_your/ | {
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"~~Video games companies are often sued. When somebody does a bad thing, like killing people, sometimes people will blame the video games that they were believed to have played. V... | [] | [] | [
[],
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"http://arstechnica.com/gaming/news/2010/03/m-rated-video-the-esrb-and-video-game-trailers.ars",
"http://www.esrb.org/ratings/downloads/ewc_code.pdf"
],
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"http://www.esrb.org/ratings/downloads/ewc_code.pdf"
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2qewzj | why is elvis still big as a cultural icon? | He's been dead for 37 years but he has his own radio station, his own theme park, his own candle light vigil on the Eve of his death, and he still has a huge impact on American culture...
Why does he have such a big impact today compared to Marilyn Monroe, Frank Sinatra, or Michael Jackson? What makes him special? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2qewzj/eli5_why_is_elvis_still_big_as_a_cultural_icon/ | {
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"Elvis is the highest selling solo artist of all time with more than 600 million records sold in the U.S alone. The population of the U.S. was only 200 million in his prime. Elvis has the most hits in the Top 100, the Top 40, The Top 10, and has h... | [] | [] | [
[]
] | |
172x3b | can I see the past if i travel any amount of light years instantaneously? | askscience | http://www.reddit.com/r/askscience/comments/172x3b/can_i_see_the_past_if_i_travel_any_amount_of/ | {
"a_id": [
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"text": [
"Yup. The only hiccup is, of course, the ability to transverse such a distance. "
]
} | [] | [] | [
[]
] | ||
9njs3h | why do particular spots on the body have a pulse? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9njs3h/eli5_why_do_particular_spots_on_the_body_have_a/ | {
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"text": [
"Blood pushes through the long tracks that cover your body to keep you healthy. Some of these tracks are closer to the skin than others, the close ones can be felt as pulses. "
]
} | [] | [] | [
[]
] | ||
29e0dj | how do those satirical interview on the daily show work? | Are they real? Do the interviewees aware that they're being lampooned? Is it heavily edited? Why do people still agree to be on the show or are they actually just actors? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/29e0dj/eli5_how_do_those_satirical_interview_on_the/ | {
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"http://www.mediaite.com/tv/peter-schiff-takes-mediaite-inside-the-daily-show-hit-job/"
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"http://youtu.be/DfiL2hpnmZ0"
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"http://en.wikipedia.org/wiki/Cognitive_dissonance#Bel... | |
39xmif | if identical twins have the same dna, how come they are not 100% perfectly identical? | slightly different heights, different fingerprints etc. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/39xmif/eli5_if_identical_twins_have_the_same_dna_how/ | {
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"One, genetic changes. Mistakes are made in DNA copying, both from the original zygotes (sex cells), and within the child. Major effects of minor genetic anomalies are fairly rare, since humans use stem cells, where specific ... | [] | [] | [
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"http://www.funnyjunk.com/imgrd/rd/pictures/25/02/250261_5118213.jpg/"
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c9so95 | why can't commercial aircrafts fly over the arctic circle to reduce flight time? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c9so95/eli5_why_cant_commercial_aircrafts_fly_over_the/ | {
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"They sometimes do. Flights between extreme northern locations, like Iceland, Russia, and Canada fly over the Arctic Circle as opposed to following the latitude line.\n\nBut further south by too much, and they make better tim... | [] | [] | [
[],
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4390zn | Were communities 'safer' before the modern-type police forces? | I'm reading a book, [Rebels Against the Future](_URL_0_), about the Luddite movement (1812, England) and one thing that keeps making me pause is how there doesn't seem to be any police forces in the communities.
It sounds like there's some local magistrate who has the ability to deputize people, a local militia, and ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4390zn/were_communities_safer_before_the_moderntype/ | {
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"Two things to get out of the way first. \n\nFor starters take into consideration that we didn't have the concentrations of people that we see after the 19th century, and that Nation-State as a centralized and organized political institution, doe... | [] | [
"https://www.goodreads.com/book/show/864008.Rebels_Against_the_Future"
] | [
[]
] | |
6xp54k | Is the Planck length constant or does it change as the universe expands? | Also, is space time pixelated by this length, or could you have overlapping of said pixels or lengths, where space-time is actually continuous?
Edit: The title should read "....could it possibly change..." as it might be theoretical. | askscience | https://www.reddit.com/r/askscience/comments/6xp54k/is_the_planck_length_constant_or_does_it_change/ | {
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"The size of the Planck length is given by the Planck constant, speed of light and the gravitational constant G. There are hypotheses that these \"constants\" are not truly constant and thus the Planck ... | [] | [] | [
[],
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] | |
32qbkt | the difference between american 'liberal' and british 'liberal' | There seems to be two definitions of the word liberal... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/32qbkt/eli5_the_difference_between_american_liberal_and/ | {
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"text": [
"UK calls liberals what the US calls libertarians.\n\nIn the UK people who would be called liberals are in the Labour party.",
"There is! And in fact, most of the rest of the world uses liberal diffe... | [] | [] | [
[],
[],
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] | |
dpgef2 | How did fast food and junk food become a stereotype of American culture vs. as prevalent in other countries? Why didn't they catch on as strongly elsewhere as they were developed? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dpgef2/how_did_fast_food_and_junk_food_become_a/ | {
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"At least with fast food, car culture and the shift to the suburbs played a *massive* part in it.\n\nBroadly, Americans began moving out of the cities and rural areas into suburbs after World War II. Suburbs had already existed in the 19th centur... | [] | [] | [
[]
] | ||
1vvw1s | why do some companies put coupons on their products that give the customer say for example an automatic $2 off? why not make the price $2 cheaper? | I bought something the other day and this happened to me. It made me wonder why companies do this, sometimes they're almost hidden on the product or hard to peel off. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1vvw1s/eli5why_do_some_companies_put_coupons_on_their/ | {
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"The manufacturer can't force the retailer to drop their price $2. So they offer coupons instead, which are widely accepted, to facilitate the price drop.",
"Finding a coupon fo... | [] | [] | [
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rg87n | Why did Katanga secede from the Congo? | I understand that Belgium influenced the Katangese declaration of independence greatly but why did Katanga/Tshombe desire the change? Greed?
Edit: Also, did the Katangese people themselves want independence? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/rg87n/why_did_katanga_secede_from_the_congo/ | {
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"Power, really. Tshombe was sidelined by the ascent of the leftist Lumumba, and he thought that since he didn't seem to be in a position to become a major player in national Congolese politics, he could carve himself his own state out of Katanga. ... | [] | [] | [
[]
] | |
8ppt0j | Losing civilisations in the long term | So, this is less a What If and more a How much. I'll try to frame the thought process that I'm curious over...
- Any fallen/extinct civilisation on the planet will have their artefacts of existing slowly destroyed by nature and potentially their own technology and/or subsequent civilisations.
- Humans haven't been on... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8ppt0j/losing_civilisations_in_the_long_term/ | {
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"Try ask in /r/Archaeology and /r/AskAnthropology/. Those are the best groups to ask these type of questions.",
"Perhaps your question was based on this, but a recent paper discusses this exact topic. See [The Silurian Hy... | [] | [] | [
[],
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"https://arxiv.org/abs/1804.03748",
"https://www.scientificamerican.com/article/could-an-industrial-prehuman-civilization-have-existed-on-earth-before-ours/"
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3aeviv | Belarus never existed as an independent country before the fall of the USSR. How come Moscow didn't try harder to keep it part of Russia and allowed it to be independent? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3aeviv/belarus_never_existed_as_an_independent_country/ | {
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"Soviet Belarus was not a part of Russia but of the USSR which ceased to exist with the signment of the Belavezha Accords in December 1991.\n\nThe Soviet Union had no government since Gorbachev was putsched away by the conservatives in August sam... | [] | [] | [
[]
] | ||
24vf85 | how can a sniper rifle be accurate at long range but so bad close?? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/24vf85/eli5how_can_a_sniper_rifle_be_accurate_at_long/ | {
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"text": [
"What do you mean by close range?\n\nThe probably with very close shooting for a sniper rifle is that you can't use the scope, which is necessary for aiming the rifle. Also, that if you use the scope it is focused for a longe... | [] | [] | [
[],
[]
] | ||
7rbyim | How do surgeons avoid air bubbles in the bloodstreams after an organ transplant? | askscience | https://www.reddit.com/r/askscience/comments/7rbyim/how_do_surgeons_avoid_air_bubbles_in_the/ | {
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6g4yoy | why on open highways do drivers generally drive in clusters? usually someone blocking left lane as well. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6g4yoy/eli5_why_on_open_highways_do_drivers_generally/ | {
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"The is because someone drive slower then then the other cars and faster cars will catch up. And it takes som time to pass the car and therefor the will be a... | [] | [] | [
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rhsix | what would have a better chance of survival, a breeding population of polar bears dropped off in Antarctica, or a breeding population of penguins dropped off near the north pole? | askscience | http://www.reddit.com/r/askscience/comments/rhsix/what_would_have_a_better_chance_of_survival_a/ | {
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"Found this in a quick search: _URL_0_\n\nIt basically confirmed what i thought. The Polar bears would probably do fine in antarctica mainly because they would be the only land predator and feed on the vulnerable Penguins.... | [] | [] | [
[
"http://earthsky.org/biodiversity/penguins-north-pole"
],
[
"http://en.wikipedia.org/wiki/Great_Auk"
]
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2igrp8 | Is there a formula for melting points in relation to pressure? | askscience | http://www.reddit.com/r/askscience/comments/2igrp8/is_there_a_formula_for_melting_points_in_relation/ | {
"a_id": [
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"text": [
"Not a chemist, but I know with water at least it's pretty complicated. What you need to look at are [Phase Diagrams](_URL_0_)."
]
} | [] | [] | [
[
"http://chemwiki.ucdavis.edu/Physical_Chemistry/Physical_Properties_of_Matter/Phases_of_Matter/Phase_Transitions/Phase_Diagrams"
]
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cyup2w | why is it that animals such as a bat or sloth can hang upside down for long periods of time but a human cannot? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cyup2w/eli5_why_is_it_that_animals_such_as_a_bat_or/ | {
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"Humans would suffer because we haven't evolved to maintain that position for very long, and blood would struggle to flow correctly, and begin to pool in the head. Bats and sloths by contrast have specialized valves and musc... | [] | [] | [
[],
[]
] | ||
3wk3s2 | Why don't radio wave "lasers" exist? Or if they do, what properties make them different than a light laser. | Is there something I'm missing here? I'm guessing the difference in energy in radio wave photons significantly changes their macroscopic behavior at casual observations. I could see how this might make it nigh impossible to create a gizmo like this.
| askscience | https://www.reddit.com/r/askscience/comments/3wk3s2/why_dont_radio_wave_lasers_exist_or_if_they_do/ | {
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"text": [
"They are called [masers](_URL_0_), even when they emit in radio and not microwave. A hydrogen maser, for example, can produce coherent 21 cm radiation.",
"Yes, masers are the radio equivalent of lasers. They actually p... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Maser"
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[]
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7q6gin | intermittent fasting | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7q6gin/eli5_intermittent_fasting/ | {
"a_id": [
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"text": [
"Intermittent fasting is a way to schedule food intake for multiple reasons. These reasons might include: easier counting of calories because it's easier for us to watch one meal a day; we're after the hormonal effects of eating one large meal a d... | [] | [] | [
[]
] | ||
a2r124 | Solids precipitate out of solution, but what do gasses do? | To be precise, what's the word for a gas going from an aqueous state to a gas state? | askscience | https://www.reddit.com/r/askscience/comments/a2r124/solids_precipitate_out_of_solution_but_what_do/ | {
"a_id": [
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"text": [
"[Outgassing](_URL_0_).\n\n@/u/mavric91, /u/DrJesusHChrist: Evaporation is the process where the solvent goes into gas state, not the things dissolved in it."
]
} | [] | [] | [
[
"https://en.wikipedia.org/wiki/Outgassing"
]
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1kstvj | When pushing against something in space, do you have the same speed as the object moving away from you? | So since in space you have no weight but still have mass, do those physical calculations still apply when pushing an object that is heavier than you? I would imagine yes because everytime an astronaut pushed off the wall of the space shuttle the would change its course. I guess it's just getting the idea wrapped around... | askscience | http://www.reddit.com/r/askscience/comments/1kstvj/when_pushing_against_something_in_space_do_you/ | {
"a_id": [
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22,
3
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"text": [
"You have the same momentum, not the same speed. If you pushed off of an object of the same mass as yourself, you'd have the same speed, an object with less mass would be moving faster than you, and a heavier object would be... | [] | [] | [
[],
[]
] | |
b892ha | what is blood plasma? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b892ha/eli5_what_is_blood_plasma/ | {
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"Blood plasma is the part of blood that's not red, white, or platelets. Basically, it's the liquid part of blood.",
"It's the bit of the blood that *isn't* blood cells, the liquid part. Mostly it's w... | [] | [] | [
[],
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7wl66e | what's the difference between chinese taipei & taiwan (if any)? | I don't know about others, but I found the aforementioned state names confusing. I know both state names have their roots in China, but I'd like for someone to put an end to my confusion as far as my query goes | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7wl66e/eli5whats_the_difference_between_chinese_taipei/ | {
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"Once upon a time, \"China\" referred to both Mainland China and the Island of Formosa (now Taiwan).\n\nWhile, to most people, \"China\" and \"Taiwan\" very obviously refer to Mainland China (People's Republic of China - PRC) and the island of For... | [] | [] | [
[]
] | |
1zio31 | why are many despots like putin so powerful individually? in reality doesn't it take everyone beneath him to reinforce his status and create his power for him by following all his orders? | Is it because of a cult like status in DPRK or something else thats making everyone working in the government agencies below him, the police, army, etc and in parliament bow down before him? Why doesnt anyone else want that power? What gives him alone all the power? Why are people so loyal to him? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1zio31/eli5_why_are_many_despots_like_putin_so_powerful/ | {
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"text": [
"This just addresses the portion asking how he keeps power.\n\nIt doesn't take everyone under him to follow orders, only enough people. And they're loyal for different reasons. \n"
]
} | [] | [] | [
[]
] | |
1uv5br | how does a person "get over someone" that they've loved and can no longer be with? is there something within our brains? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1uv5br/eli5_how_does_a_person_get_over_someone_that/ | {
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"text": [
"The grieving process denial, anger, depression and acceptance no one grieves the same and it doesn't always happen in that order, some people bounce around never accepting it. ",
"On a psychological level everyone must ... | [] | [] | [
[],
[]
] | ||
2diwm5 | Why did people risk their lives trying to escape from Eastern to Western part of Germany through the highly protected Berlin Wall instead of going somewhere south or north where I suppose it would be much easier to escape? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2diwm5/why_did_people_risk_their_lives_trying_to_escape/ | {
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"text": [
"The border in the middle of Germany was a highly militarized no-man's-land, includin... | [] | [] | [
[],
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"http://en.wikipedia.org/wiki/Iron_Curtain#mediaviewer/File:Iron_Curtain_map.svg",
"http://www.dailysoft.com/berlinwall/xgraphics/archive/maps/berlinmap_01.jpg"
],
[],
[],
[
"http://herbst89.info/index.php/inhalte-bulgarien/280-tot-oder-lebendig"
],
[
"https://www.sa.dk/content/d... | ||
5s8coj | why do engines produce max power at certain rpm? | Shouldn't power and RPM correlate? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5s8coj/eli5_why_do_engines_produce_max_power_at_certain/ | {
"a_id": [
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"score": [
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3
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"text": [
"There are lots factors that dictate when an engine is most efficient. The stroke of the crankshaft, the design of the cylinder heads and how they flow air etc. engines are usually designed to reach their peak power where the... | [] | [] | [
[],
[]
] | |
42pdzf | Western pirates hoisted the Jolly Roger. Were there similarly traditional pirate flags used by pirates of other cultures? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/42pdzf/western_pirates_hoisted_the_jolly_roger_were/ | {
"a_id": [
"czc405b"
],
"score": [
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"text": [
"Not even all western pirates used the Jolly Roger. There were many different flags used. Two others I know of were a flag with an hourglass on it. The idea being that you had a limited amount of time to surrender or they would kill you. And o... | [] | [] | [
[]
] | ||
1nninu | Why did Thomas Jefferson say “all men are created equal” in the Declaration of Independence, but in reality, he didn't mean “all men”? | Question for American Historians. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1nninu/why_did_thomas_jefferson_say_all_men_are_created/ | {
"a_id": [
"cck7d2r",
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"score": [
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20,
8,
10,
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"text": [
"The Declaration of Independence grounds its moral argument for separation from Britain in what are explici... | [] | [] | [
[],
[
"http://www.smithsonianmag.com/history-archaeology/The-Little-Known-Dark-Side-of-Thomas-Jefferson-169780996.html"
],
[],
[
"http://www.vindicatingthefounders.com/library/jeffersons-draft.html"
],
[],
[],
[]
] | |
c6vj2p | cbd full spectrum | Can it get you high or just relaxed? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c6vj2p/eli5_cbd_full_spectrum/ | {
"a_id": [
"esbhcew"
],
"score": [
3
],
"text": [
"I have a feeling that there are people who can do a better job of describing it then I can but oh well, here it goes. \n\nSo if you know anything about marijuana, you know about THC or tetrahydrocannabinol. It's the active ingredient that makes y... | [] | [] | [
[]
] | |
q7k0r | Were miracles ascribed to historical figures but ignored by historians as elaborations? | There are obviously religious texts and works that make miracle claims about certain people in history. Are there similar claims made by non-religious figures in history that are simply ignored or not mentioned due to improbability/implausibility? Or do miracles tend to only be ascribed to people in religious contexts? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/q7k0r/were_miracles_ascribed_to_historical_figures_but/ | {
"a_id": [
"c3vd4zr",
"c3vd5i5",
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"score": [
5,
5,
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],
"text": [
"When a miracle occurs in a historical primary work it usually serves as some kind of propaganda meant to strengthen the power or image of the person delivering or receiving the mir... | [] | [] | [
[],
[],
[],
[]
] | |
51skjn | since a fetus shares the same life supply as its mother, how can the child end up with a completely different blood type? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/51skjn/eli5_since_a_fetus_shares_the_same_life_supply_as/ | {
"a_id": [
"d7ehf6b",
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"score": [
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"text": [
"The Placenta.\n\nIt acts as a nutrient exchange between fetal blood and maternal blood so they don't need to mi... | [] | [] | [
[],
[
"http://www.abclawcenters.com/wp-content/uploads/2014/11/medium.jpg"
],
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[],
[],
[],
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] | ||
4y76eq | if everything has equal and opposite reaction, where is antigravity? | I remember something about mass distorting space/time (we've all seen the plane with the earth pushing it down in space), but if that's the case, what is the thing doing the opposite (pushing away). Anti-matter? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4y76eq/eli5if_everything_has_equal_and_opposite_reaction/ | {
"a_id": [
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"score": [
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],
"text": [
"Everything is pulling on everything else. The gravity of the sun is attracting the earth, but the earth's gravity is also attracting the sun. The earth and the sun both exert the same force on each othe... | [] | [] | [
[],
[],
[]
] | |
dc8hur | what determines which cast member gets featured in the opening credits of a show? | I was watching The Office and I realised only Michael, Jim, Pam, Dwight, and Ryan were featured in the opening credits but not the rest of Dunder Mifflin Scranton. Why is that? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dc8hur/eli5_what_determines_which_cast_member_gets/ | {
"a_id": [
"f277791",
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"score": [
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],
"text": [
"The first names or the last names \"And Starring...\" are considered the most prestigious, and so actor's agents will negotiate for billing as part of their contract. Being elevated to the title credits of the show is usuall... | [] | [] | [
[],
[]
] | |
29u5r7 | The year is around 1862. What kind of toys might the 11 year old Tongzhi emperor of China played with? | What kind of toys might any upper class child of the elites played with at that time? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/29u5r7/the_year_is_around_1862_what_kind_of_toys_might/ | {
"a_id": [
"cioxh75",
"cioxk7x"
],
"score": [
3,
3
],
"text": [
"Recently read the Golden Lotus novel. In one of the scene where Ximen Qing's son was born, some officials presented him baby toys in gold and silver. As far as I remember, there are some bangles, rattles (拨浪鼓), jade ornament... | [] | [] | [
[
"http://www.chinaculture.org/gb/en_chinaway/2004-08/10/content_58831.htm",
"http://classroom.synonym.com/toys-invented-ancient-china-10930.html",
"http://www.chinaculture.org/classics/2011-10/31/content_425962.htm"
],
[]
] | |
wrw42 | South American history books? | I'm looking for any reccomendations on books about South American history. In particular I'm looking for something about the history of Argentina. My family left when I was a little kid, and they've recently started telling me stories about the crazy things they saw and experienced, and I'd like some more education to ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/wrw42/south_american_history_books/ | {
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"score": [
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"text": [
"One book that's on my reading list and waiting its turn on my desk is [Open Veins of Latin America](_URL_0_) (original: [Las venas abiertas de América Latina](_URL_1_)). It seems to polarize readers so ... | [] | [] | [
[
"http://www.amazon.com/Open-Veins-Latin-America-Centuries/dp/0853459916",
"http://www.amazon.com/venas-abiertas-America-Latina-Spanish/dp/8432311456/"
],
[
"http://es.wikipedia.org/wiki/Terrorismo_de_Estado_en_Argentina_en_las_décadas_de_1970_y_1980",
"http://www.prensadefrente.org/pdfb2/index... | |
agyobx | why do smokers not cough while smoking daily but cough after quitting? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/agyobx/eli5_why_do_smokers_not_cough_while_smoking_daily/ | {
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"score": [
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3,
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"text": [
"Smoking causes death and paralysis of the cilia in your lungs. These are tiny hairs that move things up and out of your respiratory tracts. Smoking is also ... | [] | [] | [
[],
[],
[],
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] | |
5d1gzs | how do video game developers make games for the next console if the next console has not been made yet? | Here are a few examples:
* Final Fantasy XV is on the PS4. However, development started during the PS3 era in 2006.
* The Last Guardian is on the PS4. However, development started during the PS3 era in 2007.
How are games like these made? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5d1gzs/eli5_how_do_video_game_developers_make_games_for/ | {
"a_id": [
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],
"text": [
"Initial development, such as ideas, game mechanics and artwork, don't require specific details of a computer system. Later things can be worked upon if the specification for the \"new\" console are generally known. ",
"... | [] | [] | [
[],
[]
] | |
19xwke | If a horse egg fertilized with horse sperm were implanted in a donkey's womb, would the donkey be able to carry to term? | This question came up in my Intro to Biology class the other night. If a horse and donkey breed the "usual" way, they are similar enough that you get a healthy offspring, a mule. But they are different enough that the resulting mule is sterile. One of my classmates wanted to know if a donkey could be a surrogate for a ... | askscience | http://www.reddit.com/r/askscience/comments/19xwke/if_a_horse_egg_fertilized_with_horse_sperm_were/ | {
"a_id": [
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],
"score": [
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"text": [
"The genomic differences between horses and donkeys are mainly in the [arrangement of genes in chromosomes](_URL_1_); the actual sequences of horse and donkey genes are fairly similar ([moreso than in comparison of either to zebra)](_URL_2_), so t... | [] | [] | [
[
"http://www.arubandonkey.org/index.php?option=com_content&view=article&id=57&Itemid=61",
"http://link.springer.com/article/10.1023%2FB%3ACHRO.0000009298.02689.8a",
"http://books.google.com/books?id=BAYoZV_05vgC&pg=PT75&lpg=PT75&dq=genetic+similarity+horse+donkey&source=bl&a... | |
cbh2be | In 1627 the last aurochs, or wild cow, died in the Jaktorów Forest of Poland. How did Europeans of that time understand the concept of extinction? Were they aware that these animals were the last of their kind, and their death meant the end of the species? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/cbh2be/in_1627_the_last_aurochs_or_wild_cow_died_in_the/ | {
"a_id": [
"etgduya"
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"score": [
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],
"text": [
"People were absolutely aware that Mazovian aurochs are the last of their species. Jędrzej Święcicki have written in mid 16th century *Topographia sive Masoviae descriptio* (Topography or description of Mazovia, published in 1634), in this book ... | [] | [] | [
[]
] | ||
3xhzm6 | how do employees at a suicide hotline or a psychiatrist/psychologist assess the risk of suicide? | Not just if there is a suicide risk present but how big is the risk of a suicide.
Are there any guidelines for it?
Also, if it's not too demanding to ask, what do they say to a person in risk in order to prevent suicide? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3xhzm6/eli5_how_do_employees_at_a_suicide_hotline_or_a/ | {
"a_id": [
"cy4s12z",
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"score": [
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10
],
"text": [
"There generally isn't a gradual scale of risk, the assumption that everyone who calls needs the service. The only time there is a call for elevation (calling police, etc.) is when the caller makes a specific and immediate ... | [] | [] | [
[],
[]
] | |
4fbx3t | What would my training be like if I wanted to join the KGB at its prime? | I have always loved spy novels and such and while I know a decent about the CIA during the Cold War my knowledge of the KGB is extremely limited. What training would an operative receive ? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4fbx3t/what_would_my_training_be_like_if_i_wanted_to/ | {
"a_id": [
"d28bdjq"
],
"score": [
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],
"text": [
"It's been over a decade since I read it so I can't give you exact details, but Victor Cherkashin's memoir, *Spy Handler*, does feature a section where he describes his training. Cherkashin is the guy who recruited and ran Aldrich Ames and Robert ... | [] | [] | [
[]
] | |
e7oyub | recently i saw a video where a zebra tries to drown the offspring of a rival male. how are animals in the wild able to tell the difference between their offspring and others’? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/e7oyub/eli5_recently_i_saw_a_video_where_a_zebra_tries/ | {
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"score": [
91,
9,
28,
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],
"text": [
"The truth is, we really don't know for certain. It's kind of a drag really, not being able to just directly ask them. It also almost certainly varies because animals perceive the... | [] | [] | [
[],
[],
[],
[]
] | ||
2cnkef | Did many pirates subscribe to a more "advanced" ideology than we might initially believe? | The port of Libertalia seems like a genuine attempt to form a true anarchist collective. It also seems completely made up.
Is there evidence of any pirate captain plundering ships and forts in order to put economic pressure on what they considered exploitative and unethical actions by a state (or state-sanctioned part... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2cnkef/did_many_pirates_subscribe_to_a_more_advanced/ | {
"a_id": [
"cjh86rs"
],
"score": [
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"text": [
"Libertalia was made up. The whole Chapter on Captain Mission in Charles Johnson's *General History of Pyracy*, the 2nd volume that contained that chapter published in 1728 (the 1st volume published in 4 editions up to that point), has been proven... | [] | [] | [
[]
] | |
11hz9k | How did the Muezzins wake up in time for the call for prayer at sunrise before the invention of modern alarm clocks? | I just traveled a Muslim country and hearing the Muezzin call every morning close to sunrise made me wonder how they managed to wake up every morning in time for the call for *fajr* in the past. Did they have something like "ancient alarm clocks"? Like a container that loses water over a given amount of time? Or did so... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/11hz9k/how_did_the_muezzins_wake_up_in_time_for_the_call/ | {
"a_id": [
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"score": [
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],
"text": [
"You live in a city or something don't you? \n \nRural people (eg: dairy farmers) routinely get up pre dawn to prepare for dawn milkings and to get large jobs done while it's still cool (especially in countries like Aus... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Water_clock#Islamic_and_Arabic_world"
]
] | |
b1k865 | why add salt to a water softening system? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b1k865/eli5_why_add_salt_to_a_water_softening_system/ | {
"a_id": [
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"score": [
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"text": [
"\"Hard\" water is water that has a lot of non-sodium salts dissolved in it - calcium salts, potassium salts, etc. Those are the cause of build up on taps and in water heaters.\n\nWater softeners remove those salts through a process called \"ion ... | [] | [] | [
[]
] | ||
o8vxd | Could the Electrical Universe theory possibly be correct? | Question, videos, and summary are below.
**Intro**
I stumbled across a video of an underground theory which challenges the current models of the sun and universe. I wan't to stress that I am **not** an advocate of the theory, whereas my sister is willing to lean towards it. I am somebody who disputes it, but I know t... | askscience | http://www.reddit.com/r/askscience/comments/o8vxd/could_the_electrical_universe_theory_possibly_be/ | {
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"score": [
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122,
26,
6,
2,
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],
"text": [
"No, whoever made these videos has no idea how fundamental forces like gravity or electromagnetism work.",
"No, those guys are cra... | [] | [
"http://www.youtube.com/watch?v=OoIWv9Fuh7c&feature=related",
"http://www.youtube.com/watch?v=8hiv9yT7BhA&feature=related",
"http://www.youtube.com/watch?v=f4acf3J73Ro&feature=related",
"http://www.youtube.com/watch?v=NH5RKT1DQC4&feature=related",
"http://www.youtube.com/watch?v=bkAtXGxpUEk&... | [
[],
[
"http://en.wikipedia.org/wiki/Not_even_wrong",
"bit.ly",
"http://bit.ly/hMRYwm",
"http://bit.ly/qr4ygS"
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[],
[],
[
"http://en.wikipedia.org/wiki/Plasma_cosmology"
],
[
"http://dresdencodak.com/2011/04/19/dark-science-09/"
]
] | |
a2es61 | is water never produced, only recycled? | I read recently that the total amount of water on earth is always constant. Not a drop more, not a drop less. Everyone on the internet says contradicting things. What do you guys think? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a2es61/eli5_is_water_never_produced_only_recycled/ | {
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"score": [
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"text": [
"Water is produced by burning all forms of hydrocarbons and is used b... | [] | [] | [
[],
[],
[],
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] | |
c7eaye | What was the Soviet reaction the the Apollo moon landing? | I was wondering what the reaction from both the average Soviet citizen and the Soviet government was towards the moon landing. Where there any major political ramifications that resulted as result of the loss of the Space Race? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/c7eaye/what_was_the_soviet_reaction_the_the_apollo_moon/ | {
"a_id": [
"esf7jw9"
],
"score": [
412
],
"text": [
"It was reported in the Soviet press, and Soviet leaders offered congratulations on the accomplishment.\n\nOne of the many weak parts on moon landing hoax conspiracy theory is that the Soviets didn't question the veracity of the landing, at the ... | [] | [] | [
[
"https://history.nasa.gov/AAchronologies/1969.pdf"
]
] | |
1x6k3x | how does internet explorer make money for microsoft? | Do they use it to collect data? Do they not need it to make money? I really don't know. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1x6k3x/eli5_how_does_internet_explorer_make_money_for/ | {
"a_id": [
"cf8j2b5",
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"score": [
7,
8
],
"text": [
"IE's default search engine is Bing, and the default homepage is _URL_0_. They make lots of money on those.\n\nBy getting people to use IE, that means they are most likely not using Google's product and getting familiar with... | [] | [] | [
[
"msn.com"
],
[
"http://www.investopedia.com/stock-analysis/2012/how-do-internet-browsers-make-money-goog-msft-yhoo1227.aspx"
]
] | |
302xi1 | relative to wages, are some things really cheaper now than they were in 1900? | ? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/302xi1/eli5_relative_to_wages_are_some_things_really/ | {
"a_id": [
"cpom4fy",
"cpom5rz",
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],
"score": [
8,
4,
8
],
"text": [
"computers, televisions and other technology are crazy cheap in comparison to a few decades ago. a walkman for cassettes was $200-$300 new, now you can get an 8gb ipod for $100\n\nit all depends on where... | [] | [] | [
[],
[
"http://www.mybudget360.com/cost-of-living-2014-inflation-1950-vs-2014-data-housing-cars-college/",
"https://fas.org/sgp/crs/misc/R42973.pdf"
],
[
"http://cafehayek.com/2013/01/cataloging-our-progress-using-sears-com-selection-on-new-years-day-2013.html"
]
] | |
20jrk1 | Can any recommend any books to do with US economic development in the late 19th century (Gilded Age)? | I've had a look at /r/AskHistorians recommended reading list and used the search bar but I've mainly been finding more social or political histories. I was wondering if anyone could recommend any books which focus on the economic.
Thanks in advance! | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/20jrk1/can_any_recommend_any_books_to_do_with_us/ | {
"a_id": [
"cg3x3ad",
"cg3yj08"
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"score": [
2,
3
],
"text": [
"If you are interested in how economic development in the U.S. influenced foreign policy, LaFeber's *The New Empire: An Interpretation of American Expansion, 1860-1898* is still useful.",
"What kind of scope are you looki... | [] | [] | [
[],
[]
] | |
lwzre | Is it feasible to supply your body with oxygen rich fluid via IV and not use the pulmonary system? | I'm an EMT going to medic school and were discussing neonates today. I was thinking a lot about how infants are supplied with oxygen via the umbilical cord. I tried google and could only find information on [liquid breathing](_URL_0_) which is cool but doesn't answer my question.
I know that oxygen has a boiling poin... | askscience | http://www.reddit.com/r/askscience/comments/lwzre/is_it_feasible_to_supply_your_body_with_oxygen/ | {
"a_id": [
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"score": [
8,
7,
2,
3,
8,
7,
2,
3
],
"text": [
"Do you mean something like [extracorporeal membrane oxygenation](_URL_0_)? ECMO uses blood ... | [] | [
"en.wikipedia.org/wiki/Breatheable_liquid"
] | [
[
"http://en.wikipedia.org/wiki/Extracorporeal_membrane_oxygenation#Types"
],
[
"http://en.wikipedia.org/wiki/Cardiopulmonary_bypass"
],
[
"http://en.wikipedia.org/wiki/Heart-lung_machine"
],
[
"http://www.stlouischildrens.org/content/MedicalUpdateUseofArtificialLungSavesToddler.htm",
... | |
1s5b6a | How much of an impact did Creighton Abrams have and was he essential to Patton's victories? | Saw this come up in a different thread and I'm curious. I've heard the name but don't know much about him. Google turned up a bit, but I'd really like to hear some opinions from the awesome people here. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1s5b6a/how_much_of_an_impact_did_creighton_abrams_have/ | {
"a_id": [
"cdu794a"
],
"score": [
2
],
"text": [
"I saw this in the other thread, and thought it a bit of a rhetorical flourish that made a valid point, but shouldn't be taken too literally.\n\nOne fact to keep in mind is, despite Abrams prominence in the Army decades later, in 1944-45 he was a ... | [] | [] | [
[]
] | |
q7zkn | What causes different liquids to have different viscosities? | E.g. Why is honey thicker than water?
Is it just how close they are to solidifying, something to do with the particular elements that make up the liquid, or is there something more going on? | askscience | http://www.reddit.com/r/askscience/comments/q7zkn/what_causes_different_liquids_to_have_different/ | {
"a_id": [
"c3vgvhm"
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"score": [
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"text": [
"It is due to intermolecular interactions in the liquid. A good example is hydrocarbon chemistry. Some examples of straight chain hydrocarbons that you will have heard of are petrol, diesel and bitumen. These increase in viscosity and also in chai... | [] | [] | [
[]
] | |
38esmf | On the term "Rape and Pillage" | Is this a modern phrase for something that was referred to differently in medieval times, or is it a term that is interpreted differently now because the meanings of the words have changed, or did it mean the same then as now? My understanding is that the word "rape" meant, in medieval times, the taking of a woman with... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/38esmf/on_the_term_rape_and_pillage/ | {
"a_id": [
"cruuht1"
],
"score": [
2
],
"text": [
"I have an additional question: rape can also mean [\"to steal,\"](_URL_0_) in addition to our modern use of the word. In this context which meaning would this take on? Is the phrase specifically referring to sexual violence in war, or just rampan... | [] | [] | [
[
"http://www.etymonline.com/index.php?term=rape"
]
] | |
elnr5o | if tonsils are supposed to be the first line of defense against germs and bacteria, why would a tonsillectomy stop someone from getting strep or other bacterial infections? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/elnr5o/eli5_if_tonsils_are_supposed_to_be_the_first_line/ | {
"a_id": [
"fdjbgak"
],
"score": [
5
],
"text": [
"Getting your tonsils removed is generally done to treat severe, recurrent or chronic tonsillitis, which is infection of the tonsils. They get all sore and inflamed. \n\nStep throat is an infection that affects your throat and tonsils and also mak... | [] | [] | [
[]
] | ||
2wte9l | Do Hindus and Muslims of the Indian subcontinent have common ancestries or do the Muslims have more Arab roots? | ie. Is the religious divide we see between Hindus and Muslims in the subcontinent due to them being of different ancestrical lines (as Islam was introduced later with what I assume to be Arab and Turkish immigrants/conquerors) or are they closely related ethnically, with conversions in the past accounting for the relig... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2wte9l/do_hindus_and_muslims_of_the_indian_subcontinent/ | {
"a_id": [
"cotzjn6",
"cotzrbe"
],
"score": [
3,
15
],
"text": [
"The ancestry of Muslims in the Indian subcontinent is sort of a mixed bag. \n\nEarly trade between Arabs and Indians resulted in some native Indians adopting Islam, as well as intermarriage and the subsequent Indo-Arab Musl... | [] | [] | [
[],
[]
] | |
5n3bwx | betting: why can't you bet on both sides, i.e. $1.50 : $2.60 odds, make a guaranteed profit of at least $50? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5n3bwx/eli5_betting_why_cant_you_bet_on_both_sides_ie/ | {
"a_id": [
"dc8djay"
],
"score": [
3
],
"text": [
"Let's just say it's one to one odds.\n\n\nYou bet $10 for something and you bet $10 against something.\n\n\nCongratulations! You just paid yourself $10.\n\n\nOne bet losses $10. And the other pays $10."
]
} | [] | [] | [
[]
] | |
2cuo4z | Was the Roman legionary system ever adopted by anyone other than Rome? | With the phalanx having become so widespread due to it's proven success, did the legion system spread as well? I can't find anything on the matter, but surely one would think with Rome making short work of the Greek phalanxes, the focus would shift from the phalanx to the legion. I remember reading somewhere about Sele... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2cuo4z/was_the_roman_legionary_system_ever_adopted_by/ | {
"a_id": [
"cjjbudb",
"cjjc3dn",
"cjjdfyt",
"cjjen1k",
"cjjmjw3",
"cjjwid8"
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"score": [
14,
61,
13,
9,
4,
5
],
"text": [
"The Dacians replicated a legionary force and used it against the Roman Empire. It was such a good fighting force that it was incorpor... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Argyraspides"
],
[],
[],
[]
] | |
1j9jm4 | What does /r/askhistorians think of Reza Aslan and his work? | With the recent blow-up over the Fox News interview with Reza Aslan, I was wondering what do actual historians think about Reza Aslan and his work? Particularly his new book Zealot: The Life and Times of Jesus of Nazareth.
I know many popular historians aren't favored here (I'm looking at you Niall) but, what're your... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1j9jm4/what_does_raskhistorians_think_of_reza_aslan_and/ | {
"a_id": [
"cbchjyg",
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"cbcn7hl",
"cbcng9q",
"cbcowlf"
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"score": [
171,
61,
364,
3,
6,
3
],
"text": [
"Another user messaged me about this, \"What does the historical community think about [Reza Aslan]?\" so (after pointing out I'm a... | [] | [] | [
[
"http://www.newyorker.com/arts/reviews/brieflynoted/2013/08/05/130805crbn_brieflynoted4",
"http://lareviewofbooks.org/review/son-of-man-scott-korb-on-reza-aslans-zealot-the-life-and-times-of-jesus-of-nazareth",
"http://en.wikipedia.org/wiki/Son_of_man",
"http://historicaljesusresearch.blogspot.com... | |
edkgpd | what is the process by which mass gets converted into energy? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/edkgpd/eli5_what_is_the_process_by_which_mass_gets/ | {
"a_id": [
"fbief4r",
"fbiejfz"
],
"score": [
3,
2
],
"text": [
"Well I can get you started, what do you think a particle is? A very tiny small ball? \nthat's actually not what it is, fundamental particles are sizeless, they don't have a size, they don't take up any space what so ever to... | [] | [] | [
[],
[]
] |
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