q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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jr1od | When did males start growing beards and why don't great apes have them? | I understand great apes have facial hair below the chin, but I've never seen an ape with a mustasche. When did the ability to grow hair above the upper lip develop? I found a post saying that is was selected for sexuality, but when and why did it start?
Also, why didn't women develop facial hair? | askscience | http://www.reddit.com/r/askscience/comments/jr1od/when_did_males_start_growing_beards_and_why_dont/ | {
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"Women have facial hair. It is not typically as dense as men's, and obviously in many cultures it is shaved/tweezed/waxed/bleached... | [] | [] | [
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"http://i1.trekearth.com/photos/96970/orangutan.jpg"
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5ldxhw | When and where did people start using beds with legs, as opposed to some sort of mat for sleeping on the floor? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5ldxhw/when_and_where_did_people_start_using_beds_with/ | {
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"While you may get answers here, this question may be worth x-posting to our sister sub, /r/AskAnthropology "
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95x3mp | Why did the dutch nationalist/fasists suport the german invasion instead of remaining loyal to the queen? | In may 1940 germany invaded the netherlands as part of case gelb. The dutch army was forced to surender after 5 days of fighting. At wich point the nsb was prompt to declare the queen and her goverment who had fled to londen day's before traitor's. My question is why would a nationalist/fasist orgnisation suport invade... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/95x3mp/why_did_the_dutch_nationalistfasists_suport_the/ | {
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"The position of the NSB (Dutch national-Socialist party) in regards to the German invasion was twofold. On one hand Anton Mussert (the leader of the NSB) welcomed the invasion, as he hoped that Hitler would install him as the leader of the Dutch... | [] | [] | [
[]
] | |
8nkgg6 | Is there an underlying physical limitation of the bandwidth of wireless links? | Or can you just keep throwing up more antennas with wider channels?
If we abandoned all other broadcast medium, is there a upper limit of frequencies we could use? | askscience | https://www.reddit.com/r/askscience/comments/8nkgg6/is_there_an_underlying_physical_limitation_of_the/ | {
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"There is no bandwidth limitation per se, but there is an underlying physical limitation on the amount of information that can be transmitted over a given channel (a channel being the mathematical abstraction of everything t... | [] | [] | [
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"http://www-isl.stanford.edu/groups/elgamal/abbas_publications/C002.pdf",
"https://en.wikipedia.org/wiki/Code-division_multiple_access",
"https://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem",
"https://en.wikipedia.org/wiki/Channel_capacity",
"https://arxiv.org/abs/1106.1445v... | |
b9qsb7 | if earth's inner layers are essentially super hot metal, and some sections are liquid, how does it keep from solidifying through loss of heat? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b9qsb7/eli5_if_earths_inner_layers_are_essentially_super/ | {
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"A lot of radioactive elements sank to the center when the Earth was still fully molten, and their high concentrations in the center generate a huge amout of heat as they decay.\n\... | [] | [] | [
[],
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"https://medium.com/starts-with-a-bang/why-the-earth-has-a-liquid-core-854efe043b3"
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9mcffw | Contemporary Bubonic Plague | What do we think of today caused the bubonic plague? Why did it stop/what they could've done better with their med tech knowldge? Is it true that prices went down and wages went up because of the smaller population? How did it affect the culture of the next few generations? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9mcffw/contemporary_bubonic_plague/ | {
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"text": [
"There is a strong consensus that Yersinia Pestis was the pathogen responsible for the medieval Pandemic referred to as the \"bubonic plague\" or \"Black Death.\" Twigg and various scholars (primarily in the 1970's) claimed that this particular pa... | [] | [] | [
[]
] | |
tsnwk | Does you brain function differently when ketones are the main source of energy, than it does on glucose? | Or are there any noticeable effects? | askscience | http://www.reddit.com/r/askscience/comments/tsnwk/does_you_brain_function_differently_when_ketones/ | {
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"Google Scholar had a few references to ketogenic diets that predate Dr Newport's claim that extra virgin coconut oil cures Alzheimers, but the studies relate to epilepsy in children. Snopes said it was unproven.\n\nFast until your breath has tha... | [] | [] | [
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7q7nj1 | Where do animals get water from in the winter in places where everything is frozen over, and there is no snow available to eat? | askscience | https://www.reddit.com/r/askscience/comments/7q7nj1/where_do_animals_get_water_from_in_the_winter_in/ | {
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"Funnily enough eating snow is actually very expensive in terms of metabolism. Meaning it's normally a waste of time! (Another reason to not eat the yellow snow)\n\nUsually it varies from animal to animal. Polar bears for instance use a chemical p... | [] | [] | [
[]
] | ||
2mwzzr | different led types (led, oled, amoled, p-oled), their status (common in mobile devices, r & d only) | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mwzzr/eli5_different_led_types_led_oled_amoled_poled/ | {
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"LED's are light emitting diodes. Diodes are a device made of semiconductors that only allows electrical current through one way. A light emitting diode is a diode that while allowing current through the one way emits light at the same time. \r\r\... | [] | [] | [
[]
] | ||
25f0l7 | What actually happened to the Roman Ninth Legion that "vanished" from present day Scotland in the second century? | _URL_0_
This thread piqued my interesting, and I immediately thought of you guys, hoping I could gain some insight on the disappearance of Legio IX Hispana. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/25f0l7/what_actually_happened_to_the_roman_ninth_legion/ | {
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"It's important to remeber that IX Hispana was always under strength since its near destruction during Boudicca's revolt (Annals 14.29) so that by the campaigns of Agricola, it numbered only 1000 under Lucius Roscius Aelian... | [] | [
"http://www.reddit.com/r/UnresolvedMysteries/comments/25by59/legio_ix_hispana_5000_roman_soldiers_who_marched/"
] | [
[],
[]
] | |
9tasu0 | What is the optimal number of blades a plane's propeller could have? | I recall seeing planes with different number of propeller blades, different sizes and types. Is there really an optimal number, and if so, does it depend on the plane's size and functionality? Is this number different for helicopters? Are there different propeller blade types for different purposes (eg. high speed, hig... | askscience | https://www.reddit.com/r/askscience/comments/9tasu0/what_is_the_optimal_number_of_blades_a_planes/ | {
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"text": [
"It depends on the plane's function, attributes, specifications, etc. There's no one optimal size; if there was, every aircraft would use it. Generally, fewer blades are more efficient because as the blade turns, it at least partially passes throu... | [] | [] | [
[]
] | |
5d57rl | Mansu Musa and gold in Europe | Hey, I have a question about Mansa Musa of Mali. Did he introduce a lot of gold to Europe, since I've seen European maps with Mansa Musa and lots of gold on it? Or did he just show Europe more gold? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5d57rl/mansu_musa_and_gold_in_europe/ | {
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"text": [
"Emperor Musa went on hajj in 1324, and on his hajj he visited Cairo before continuing on to Mecca. He was not the first Malian monarch to make this hajj, nor was he the last. But, by the vagaries of fate, he is remembered for the particular wealt... | [] | [] | [
[
"http://www.bu.edu/africa/outreach/k_o_mali/"
]
] | |
16wbgq | why can't kim dotcom be prosecuted for his new site? | What's the big deal about this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/16wbgq/why_cant_kim_dotcom_be_prosecuted_for_his_new_site/ | {
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"He can't be persecuted because he is operating entirely within the domain of a country in which he is breaking no laws. He was able to be persecuted for the old one (illegally) because it was a .com, which falls under jurisdiction of the USA. "
... | [] | [] | [
[]
] | |
1rql8y | Whole, negative, and rational exponents all have intuitive meaning. What does it mean when raising a number to an irrational or transcendental number? | For example raising a base (B) to a whole number (N) "means" to multiply B by its self (N) times.
b^n = b*b*b*b...*b
Raising (B) to a negative integer (-N) just "means" to take the inverse of B raised to (N).
b^-n = 1/(b^n)
Raising (B) to a rational number (N/M) "means" to take the the Mth root of B^(N)
b^(n/m) ... | askscience | http://www.reddit.com/r/askscience/comments/1rql8y/whole_negative_and_rational_exponents_all_have/ | {
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"No need to distinguish transcendental numbers from irrational numbers—transcendental numbers are irrational so if we can figure out what exponentiation by irrational numbers means... | [] | [] | [
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"http://en.wikipedia.org/wiki/Construction_of_the_real_numbers#Construction_from_Cauchy_sequences",
"http://en.wikipedia.org/wiki/Least-upper-bound_property"
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33pljl | Which loses its fizz faster: A soda bottle standing upright or a bottle that's lying on its side? | Will the soda lose fizz slower if it only has contact with the air that's the area of the neck of the bottle, or will nothing change? | askscience | http://www.reddit.com/r/askscience/comments/33pljl/which_loses_its_fizz_faster_a_soda_bottle/ | {
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"Assuming both bottles are completely sealed there will be no difference in the long term as the volume of the head space should be same and thus the amount of CO2 that escapes into that space will be the same. In the very short term the sideway... | [] | [] | [
[]
] | |
39j4tf | could a hacker theoretically breach a bank and erase all the debt the banks have on file? | Could a hacker erase all records of mortgages and credit and if so what would the bank do? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/39j4tf/eli5_could_a_hacker_theoretically_breach_a_bank/ | {
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"Technically, yes, but realistically, no.\n\nMost companies have back up centers located in different physical locations.\n\nThey also h... | [] | [] | [
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361704 | What Made the Nazi Military So Powerful? | This seems like it would be a common question, but everything I found in searches talks about how the Nazis gained support within Germany. They don't explain how a nation that was impoverished following the first world war and forced to disband much of its military managed to take over Poland and France, march on the S... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/361704/what_made_the_nazi_military_so_powerful/ | {
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"After WWI, Germany was economically devastated. There were restrictions placed on their military strength and reparations that were forced to be paid with the stipulation that if they were not paid, Britain and France would ... | [] | [] | [
[],
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] | |
3d675x | why can you still have gps and wifi on when you're on a plane but not standard cellular network connection | I'm assuming it has something to do with how the data is sent and received? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3d675x/eli5_why_can_you_still_have_gps_and_wifi_on_when/ | {
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"Well, GPS is a receive-only technology. A constant signal is broadcast from all of the GPS satellites. The signal contains a timestamp, all of the satellites have their times precisely synchronized, and the location of the satellites are known.... | [] | [] | [
[]
] | |
5lb3j4 | Why has the US seemingly always supported right-wing dictatorships in opposition to communist ones? | Mostly for central and south america, it seems every time the communist boogeyman would rear its head the CIA would try and install the most brutal despot they could find as long as they swore to kill lots of communists.
Why not try and get these countries on e.g. US-aligned european-style social-democracies to draw t... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5lb3j4/why_has_the_us_seemingly_always_supported/ | {
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"text": [
"The wars and military operations to which you are referring were, for the most part, secondary to the larger 'conflict' which framed much of the later 20th Century known as **The Cold War**. (I'm sure you know this, just so we are on the same pa... | [] | [] | [
[]
] | |
7splj1 | why do you hear yourself breath louder when you have headphones in with no music playing? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7splj1/eli5_why_do_you_hear_yourself_breath_louder_when/ | {
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"You are blocking your ears from hearing things outside your body, so your ears are hearing the sounds resonating within your body easier. That's why you hear your heart beat and stomach rumble easier wi... | [] | [] | [
[],
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dqtj1o | Anyone know any books about the Filipino-Spanish Society during the Spanish Colonization of the Philippines? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dqtj1o/anyone_know_any_books_about_the_filipinospanish/ | {
"a_id": [
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"text": [
"What aspects are you interested in? What do you mean by “Filipino-Spanish society”? Do you mean Filipino people under colonialism or do you mean the very small Spanish population running the colony?"
]
} | [] | [] | [
[]
] | ||
bxetd9 | what are the technological/physical limitations regarding smartphone camera advancements? will we ever see them match traditional ones? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bxetd9/eli5_what_are_the_technologicalphysical/ | {
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"text": [
"Small lens size limits light entry, so no, will probably never match the quality of a traditional SLR"
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} | [] | [] | [
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] | ||
3a9o7n | How did the laws of war come to be? How did certain ways of killing others in war come to be seen as so inhumane it can't be allowed even in a war? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3a9o7n/how_did_the_laws_of_war_come_to_be_how_did/ | {
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"This is actually a somewhat broad question and you could get many possible answers. I'll only discuss one thing and allow others to pipe in.\n\nIn 1863, Abraham Lincoln signed a set of rules on wartim... | [] | [] | [
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"http://www.reddit.com/r/AskHistorians/comments/1q0mva/what_is_the_history_of_the_lawsethics_of_military/",
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"http://www.radiolab.org/story/nazi-summer-camp/"
],
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5uykvx | What evolutionary pressure is there for people with good looking faces? | Why are some faces considered attractive? Why are people with certain faces more likely to survive? | askscience | https://www.reddit.com/r/askscience/comments/5uykvx/what_evolutionary_pressure_is_there_for_people/ | {
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"One theory is that more symmetric (but not perfectly symmetric) faces are seen as more attractive because asymmetric faces may indicate some prior injury or disease. For example, [Moller (1992)](_URL_4... | [] | [] | [
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"http://cogprints.org/4349/1/Zaidel2005.pdf",
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"http://... | |
4fn5fi | why the saudi government would have backed an attack on the us? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4fn5fi/eli5_why_the_saudi_government_would_have_backed/ | {
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... | [] | [] | [
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c5h5el | why do some blood tests need to be done from a specific arm, when blood in the body circulates so quickly? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c5h5el/eli5_why_do_some_blood_tests_need_to_be_done_from/ | {
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"They don't need to be done from a specific arm. The arm is usually just the easiest and most convenient way to draw blood with a minimal amount of fuss.",
"Blood tests don't need to come from a spec... | [] | [] | [
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19f7zc | Does a lightning bolt or strike have a thickness? Or is it one electron thick? | A friend and I were wondering about this today. Does lightning have a thickness? Do we know? | askscience | http://www.reddit.com/r/askscience/comments/19f7zc/does_a_lightning_bolt_or_strike_have_a_thickness/ | {
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"It has a thickness.\n\nThe lightning bolt is a channel of hot ionized gas created through an electrical discharge. Depending on the discharge this channel can be tiny (e.g. piezo sparks) and typcial thickness in real lightnings is 1-4 cm\n\n_URL_... | [] | [] | [
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"http://onlinelibrary.wiley.com/doi/10.1029/JB073i006p01889/abstract"
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6gckhq | clean energy and electric cars are great and all, but crude is refined into many many other things. how are those other industries preparing for the day that there isn't enough oil in the world to meet demand? | Edit: Could be flaired as either economics, engineering, or chemistry... I couldn't decide. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6gckhq/eli5_clean_energy_and_electric_cars_are_great_and/ | {
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"dip7ne1",
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"score": [
3,
3
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"text": [
"There will always be enough oil to meet demand, thats the fun part about supply and demand.\n\nAs we deplete the easy oil reserves the price of oil will increase and we'll tap into the more expensive to drill reserves. As t... | [] | [] | [
[],
[]
] | |
2ysvh2 | did cocaine for the first time a couple of days ago. i was wondering how does cocaine get into your brain and how is it that it takes so little time. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2ysvh2/eli5_did_cocaine_for_the_first_time_a_couple_of/ | {
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"its water soluble. when you insuffilate it into your nose, the teeny tiny capillaries will absorb the drug directly into your blood stream. any mucous membrane in your body will do this (example: benzo... | [] | [] | [
[],
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] | ||
46wzp8 | what's the point of a gated community if they just open the gates at night? | At least in my area, there are many residential complexes/communities that are gated, but late at night they open the gates. Doesn't opening the gates like that defeat the whole point of having a gate in the first place? If it doesn't, then why not? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/46wzp8/eli5_whats_the_point_of_a_gated_community_if_they/ | {
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"I don't think they *normally* open the gates at night. I have a friend who lives in one of these and in his gated community they have on site security who patrol around, and the front gates are opened b... | [] | [] | [
[],
[],
[]
] | |
3tweyv | how do satellites communicate with thousands of individual devices at once? | If I'm carrying two GPS devices, each one is engaged in its own communications with a satellite (afaik). If all of the communications are wireless, I'm guessing they're broadcasted in every direction, so how are all of these communications routed (how does device A distinguish its communications from device B?) and are... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3tweyv/eli5_how_do_satellites_communicate_with_thousands/ | {
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"text": [
"Satellites are just big radio stations in the sky, its a one-way communication just like when you listen to the radio in your car, and everyone else on the radio does too. Your GP... | [] | [] | [
[],
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] | |
8tdnc1 | Why did medieval european chroniclers and clerks write in intricate and flourished calligraphy? | Hi everybody,
So I’ve been studying english medieval history in the twelfth and thirteenth century. Looking at say for example a genuine copy of a royal writ, or magna carta and then a digital transcript of the same latin. I can not discern any of the words from the calligraphy. Was this intentional? Is this just my mo... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8tdnc1/why_did_medieval_european_chroniclers_and_clerks/ | {
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"text": [
" > I can not discern any of the words from the calligraphy. Was this intentional? Is this just my modern ignorance? Or did the literate person of the day simply learn throughout their whole life that that was how letters were written.\n\nI had to... | [] | [
"https://images.google.co.uk/imgres?imgurl=https%3A%2F%2Ferenow.com%2Fpostclassical%2Ftheplantagenetsthekingswhomadeengland%2Ftheplantagenetsthekingswhomadeengland.files%2Fimage011.jpg&imgrefurl=https%3A%2F%2Ferenow.com%2Fpostclassical%2Ftheplantagenetsthekingswhomadeengland%2F89.html&docid=EPPjbQgD770VIM&a... | [
[]
] | |
2dog47 | Are there any uncommon forms of bacteria or an organism that once enters your body, increases physiologically functioning rather than cause disease? | I already know about the existence of "good" bacteria throughout your body, but are there any uncommon contractible organisms or bacteria that enhance functioning? | askscience | http://www.reddit.com/r/askscience/comments/2dog47/are_there_any_uncommon_forms_of_bacteria_or_an/ | {
"a_id": [
"cjs0991"
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"score": [
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"text": [
"I cant find the link. But there are indeed bacteria that help in increasing metabolic functions there are studies that even show that there is a correlation between amount of a specific bacteria and Kwarishokers or Krohns disease but trick is fin... | [] | [] | [
[]
] | |
429cep | Relative (adjusted) cost of paper in 17th century England? | So I was watching this documentary on the history of the Calculus, and this fellow was reading from Liebniz' and Newton's respective notebooks, and I was noticing the impossibly small size of their script relative to my ponderously wasteful use of scratch paper. This got me to wondering what the cost of paper would hav... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/429cep/relative_adjusted_cost_of_paper_in_17th_century/ | {
"a_id": [
"cz8ouid"
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"score": [
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"text": [
"In the incunable age, i.e. from the inventing of the printing press to ca. 1500, a book printed on paper without a binding sold (in Venice) for a price approximately equivalent to the daily salary of a skilled laborer, so say $100-200 modern doll... | [] | [] | [
[]
] | |
2p27bv | why can large files like video games be stored and used on a single disc while presumably much smaller things like seasons of shows take multiple discs | just thinking, after buying all of A:TLA | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2p27bv/eli5why_can_large_files_like_video_games_be/ | {
"a_id": [
"cmsnr6l",
"cmsnuqm",
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"score": [
3,
5,
6
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"text": [
"Because shows aren't small. A good quality video can easily push over a gig per hour of play, plus the menus and extras and commentary and all the other useless shit, those discs fill up fast. ",
"I... | [] | [] | [
[],
[],
[]
] | |
56itpu | how does akinator and other genie games really operate? i get it's based on narrowing it down but it has guessed obscure characters in less than ten questions. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/56itpu/eli5_how_does_akinator_and_other_genie_games/ | {
"a_id": [
"d8jn2oz"
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"score": [
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"text": [
"It has a large database of characters and answers that are true for them (contributed by users of the website) and by asking questions that roughly split the possible characters into equal groups (50/50 split), means that it only takes ten questi... | [] | [] | [
[]
] | ||
4cl6yc | How progressive and democratic were pirates, really? | Its my understanding that pirate ships were democratic enterprises were captains and undertakings were voted on, and women and black men were welcomed as equals. This sounds wonderful, is it true? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4cl6yc/how_progressive_and_democratic_were_pirates_really/ | {
"a_id": [
"d1l3f7r"
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"score": [
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"text": [
"This is a huge question and the answer to it formed a large part of my [doctoral thesis](_URL_0_), particularly chapter 2.\n\nIn legitimate early-modern seafaring there existed two distinct chains of command: within the ship (the *internal* chain... | [] | [] | [
[
"https://ore.exeter.ac.uk/repository/bitstream/handle/10871/14872/FoxE.pdf?sequence=1&isAllowed=y"
]
] | |
l1ag3 | iambic pentameter | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/l1ag3/eli5_iambic_pentameter/ | {
"a_id": [
"c2ozujr",
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"score": [
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"text": [
"When we speak, there's usually a natural rhythm to how we say the words. Some syllables get more emphasis and some get less.\n\nAn *iamb* is just a non-emphasized syllable follow... | [] | [] | [
[],
[],
[],
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] | ||
4jen2z | Has a presidential candidate ever selected a Vice President from a different party? | This is not intended to be a political discussion, I'm just genuinely curious.
| AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4jen2z/has_a_presidential_candidate_ever_selected_a_vice/ | {
"a_id": [
"d36ay5u"
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"text": [
"The only one I can recall off the top of my head is when Lincoln (Republican) chose Andrew Johnson (Democrat). Johnson was a Democrat who supported the war effort. Other folks will likely give more detailed responses, and other possible cross-par... | [] | [] | [
[]
] | |
11n8w2 | If a hotter object has higher average energy and emit more light, where do LEDs, for instance, fit in? | I watched this video: _URL_0_
I found it quite interesting. Planks constant gets me though. What I don't get though is with LED's for instance. They have a higher efficiency and emit more light than incandescent lights, as they give of less heat (I thought wasted energy). But if heat = higher energy = bigger packets o... | askscience | http://www.reddit.com/r/askscience/comments/11n8w2/if_a_hotter_object_has_higher_average_energy_and/ | {
"a_id": [
"c6o3muy",
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2
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"text": [
"Black body is a continuous emission of energy based on heat. But things like LEDs are materials that allow for specific transitions between energy levels for electrons. And as the electrons drop between those levels they emi... | [] | [
"http://www.youtube.com/watch?v=i1TVZIBj7UA&feature=my_liked_videos&list=LLpTp_W032GL-2MxkR3d3QBQ"
] | [
[],
[]
] | |
eqb21y | why does everyone here hate emojis so much, when they seem to be proliferating on all other platforms? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/eqb21y/eli5_why_does_everyone_here_hate_emojis_so_much/ | {
"a_id": [
"fepd6sn"
],
"score": [
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"text": [
"Reddit has an entirely unique culture compared to most other popular platforms, which gains it popularity with some and hatred with others, the ELI5 answer is that emojis are seen as a lesser form of meme on reddit. \n\nReddit culture is fairly c... | [] | [] | [
[]
] | ||
26dxe8 | Why did Dutch become a separate language but Swiss German didn't? | I have a feeling the answer has more to do with the history of the two countries than with any linguistic reason, so that's why I'm posting my question here instead of Asklinguistics.
As far as I know, both are just as incomprehensible to a standard German speaker and both are spoken in different countries, so why did... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/26dxe8/why_did_dutch_become_a_separate_language_but/ | {
"a_id": [
"chqb8e5"
],
"score": [
6
],
"text": [
"I am afraid the reason is linguistic. According to [Pijnenburg](_URL_0_) (pdf in dutch, the second chapter) the reason why Dutch diverted from German is twofold, the [high German consonant shift](_URL_1_) didn't happen in dutch and the dutch dial... | [] | [] | [
[
"http://www.dbnl.org/tekst/toor004gesc01_01/toor004gesc01_01.pdf",
"http://en.m.wikipedia.org/wiki/High_German_consonant_shift"
]
] | |
1gsk7w | What are your opinions on Hagarism and Patricia Crone's work? | Specifically, I'm asking for /r/AskHistorians opinions on *Hagarism: The Making of the Islamic World* and *Meccan Trade and the Rise of Islam,* both by Patricia Crone, and Hagarism in general. So, thoughts? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1gsk7w/what_are_your_opinions_on_hagarism_and_patricia/ | {
"a_id": [
"cankrei"
],
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"text": [
"Crone wrote Hagarism when she was a grad student, which was extremely gutsy since the book essentially refuted the whole of Islamic studies at that period. Crone herself has repudiated the book's central premise but it is still very important and... | [] | [] | [
[]
] | |
15ceiz | Did the stranglehold the Soviet Union had on Eastern Europe hinder its ability to compete economically with the Western nations today, or are their economic shortcomings merely a result of a historically unstable region? (X-post, was told to post here) | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/15ceiz/did_the_stranglehold_the_soviet_union_had_on/ | {
"a_id": [
"c7l8eax",
"c7ler68",
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"score": [
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5,
2,
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"text": [
"Very interesting question. I have always wondered this and assumed it was because of no capitalism for 45 years. While talking about something else, on of my history profs did ment... | [] | [] | [
[],
[],
[],
[]
] | ||
fdgedc | what is the precise biological mechanism that leads to teething | I have a very painful wisdom teething right now and I want to know why my body thinks it’s a good idea to grow teeth even though there is no space left for new ones. Also, why does it grow in short bursts over several months instead of all at once ? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fdgedc/eli5_what_is_the_precise_biological_mechanism/ | {
"a_id": [
"fjh86qd"
],
"score": [
3
],
"text": [
"Evolution. The human jaw used to be more than large enough to hold all those teeth, but as our jaw size shrank, things got crowded. I've had all four of my wisdom teeth pulled, as well as four other molars and four bicuspids. Only 20 teeth in ... | [] | [] | [
[]
] | |
s43uu | Are we "smarter" than our ancestors or is this an artefact of bias towards the current zeitgiest? | I suppose I would like an answer from a cultural anthropologist or science historian but any input is welcome. It seems that the great discoveries of the past (talking 150+ years ago) took a long time to arrive at and were mindblowing while now they seem to happen on a weekly basis and are almost casually accepted. Hav... | askscience | http://www.reddit.com/r/askscience/comments/s43uu/are_we_smarter_than_our_ancestors_or_is_this_an/ | {
"a_id": [
"c4b0fs2"
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"score": [
2
],
"text": [
"You partly touched on your answer - its not that were smarter, and in any case its notoriously hard to define 'smartness' or 'intelligence'. Its that we are the result of an accumulation of knowledge. The general consensus is that while other ani... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Upper_Paleolithic",
"http://scienceworld-frontiers.blogspot.ca/2012/03/cultural-ratchet-present-in-humans.html"
]
] | |
yd33h | How effective would strapping dry ice to a fan be at cooling down an area? | And, also, would the CO2 kill me? | askscience | http://www.reddit.com/r/askscience/comments/yd33h/how_effective_would_strapping_dry_ice_to_a_fan_be/ | {
"a_id": [
"c5ugnnx",
"c5ukoes"
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"score": [
9,
3
],
"text": [
"Air conditioners work so well because they take all of the heat from the air and put it outside. You need to put a lot of work into the system(the room you're in) in order to remove all the energy that is in the room with y... | [] | [] | [
[],
[]
] | |
1c1wfn | What was life really like in Japanese-occupied Taiwan and Korea? How did they differ? | Disclaimer: I am from Vietnam. Everything I write here is what I have learned from history lessons and Chinese sources. Please do not take offence at any inaccuracies - they are what I am here to correct.
Hello Historians,
I am confused regarding the Japanese occupation of both Korea and Taiwan.
For the longest time... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1c1wfn/what_was_life_really_like_in_japaneseoccupied/ | {
"a_id": [
"c9cjdv9",
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"text": [
"I personally do not have a history of Colonial Korea to give you, as I am not in possession of the literature necessary to do so at this time; however, I can point you in the right direction, if you have access to a library.... | [] | [] | [
[],
[]
] | |
3p9iz4 | I just read that Homo erectus used and controlled fire. How do we know that? | I understand how we know they used tools. But fire? What evidence of fire could have possibly survived that long? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3p9iz4/i_just_read_that_homo_erectus_used_and_controlled/ | {
"a_id": [
"cw4bkqi",
"cw4cat8"
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"score": [
7,
23
],
"text": [
"Hi, questions on early humanoids are worth x-posting to our sister sub /r/AskAnthropology ",
"The most commonly used evidence of fire is remnants of charcoal, burned earth, or burned bone, that can either be dated direc... | [] | [] | [
[],
[
"https://books.google.com/books?id=BVzV9reo0bYC&dq=catching+fire+how+cooking+made+us+human&source=gbs_navlinks_s"
]
] | |
6irsw7 | what is the difference between a "culture" and a "subculture" | I've asked my sociology professor twice and am still confused. He says it isn't arbitrary but he also says that it depends on which sociologist you ask for whether something is or isn't a subculture.
Would someone please explain what the difference is and how one culture can have many cultures but not all cultures wit... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6irsw7/eli5_what_is_the_difference_between_a_culture_and/ | {
"a_id": [
"dj8ld4r",
"dj8muys"
],
"score": [
2,
5
],
"text": [
"Just guessing here, but isn't a culture bound to geological locations and subculture not?\nExample: western culture, Japanese culture, are bound to the western world and Japan.\nRock n roll subculture can be found in every p... | [] | [] | [
[],
[]
] | |
jd5kg | why big banks are considered evil. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jd5kg/eli5_why_big_banks_are_considered_evil/ | {
"a_id": [
"c2b5i92",
"c2b5i92"
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"score": [
3,
3
],
"text": [
" Imagine your parents are saving up money to buy a house. The house is very expensive and your parents don't have all the money that is needed at the moment to pay for the house. The bank says, oh thats ok, you just pay us... | [] | [] | [
[],
[]
] | ||
4kaio6 | Japan usually had an isolationist policy towards foreigners, but what did they think of Europeans when they first made contact, and how has that viewpoint evolved since then? | Were the Japanese people distrustful towards Europeans? Were they racists? Just looking for more insight, thanks! :) | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4kaio6/japan_usually_had_an_isolationist_policy_towards/ | {
"a_id": [
"d3ecox6"
],
"score": [
2
],
"text": [
"Here is the earliest known Japanese account of the Portuguese:\n\n\"They eat with their fingers instead of with the chopsticks such as we use. They show their feelings without any self control. They cannot understand the meaning of written charac... | [] | [] | [
[]
] | |
yes4w | tort reform | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/yes4w/eli5_tort_reform/ | {
"a_id": [
"c5uwp39"
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"score": [
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"text": [
"\"Tort\" is when a person who has a responsibility to you screws it up really badly. For example, let's say your doctor accidentally cuts off your leg. That's a tort.\n\nNow, when there's a tort, you compute \"actual damages.\" For example, le... | [] | [] | [
[]
] | ||
d69te2 | What kind of dances did Romans have? Were there dances that the higher classes were expected to know like ballroom dancing in the 18th and 19th centuries? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/d69te2/what_kind_of_dances_did_romans_have_were_there/ | {
"a_id": [
"f0sbuxu"
],
"score": [
678
],
"text": [
"Upper-class Romans were typically spectators, not performers, of dance.\n\nAt least some elite Romans, in fact, considered participating in a dance nothing less than shameful. Cicero, for example, is at pains to explain why one of his clients -... | [] | [] | [
[]
] | ||
1t6lmn | What group of people determined the constellations we use today, were there different constellations for different groups of people? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1t6lmn/what_group_of_people_determined_the/ | {
"a_id": [
"ce4wq75"
],
"score": [
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"text": [
" > What group of people determined the constellations we use today\n\nAssuming you mean the constellations used by the scientific community, I'll let someone else handle the development of the International Astronomical Union's official constell... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Fisher_(animal\\)",
"http://books.google.com/books/about/Stars_of_the_First_People.html?id=tPDWAAAAMAAJ"
]
] | ||
ao6gup | when disconnecting a circuit (i.e. a car battery), why is it better to pull the negative side before the positive? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ao6gup/eli5_when_disconnecting_a_circuit_ie_a_car/ | {
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4,
17,
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"text": [
"In a car its more because you want to disconnect the chassis first. Less chance of a short if all the metal in the car isn't part of the circuit.",
"Basically, if you take p... | [] | [] | [
[],
[],
[],
[]
] | ||
10n8gx | in space, it always seems that we are shown traveling on a 2d plane. what happens if you leave earth and go straight "up" or "down"? | All pictures of our solar system have this neat, perfect linear illustration of the plants lined up. So we take off from Earth to travel "sideways" or linear to get to the moon, to send our probes and such to planets, but what if you left from the North or South Pole and traveled straight from there? What is out there? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/10n8gx/in_space_it_always_seems_that_we_are_shown/ | {
"a_id": [
"c6ex0yi",
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"score": [
16,
3
],
"text": [
"Our planets are all mostly on the same plane, which is nicely convenient for illustration purposes. If you go any other direction, it's pretty darn empty. And it will take a while to run into the [Oort cloud](_URL_0_). Beyo... | [] | [] | [
[
"http://www.space.com/16401-oort-cloud-the-outer-solar-system-s-icy-shell.html"
],
[
"http://www.outerspaceuniverse.org/media/milky-way-earth-location.jpg",
"http://www.astronomycast.com/wp-content/uploads/2008/10/phot-06c-99-preview.jpg"
]
] | |
376o4b | How can sexual selection work at species which have a 50:50 ratio of genders? | Hello scientists!
So I am an amateur in evolution theory and specialized on it in my A-levels (Abitur) and red a little bit of Richard Dawkins.
Although there are still a few basics of evolution I never understood 100% of (especially when we look at the human evolution).
Sexual selection is probable the most importan... | askscience | http://www.reddit.com/r/askscience/comments/376o4b/how_can_sexual_selection_work_at_species_which/ | {
"a_id": [
"crk7o97",
"crkgrcr",
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"score": [
3,
18,
7
],
"text": [
"It might be a really important one, but it's not the only factor.\n\nHumans can now walk to the supermarket for food, but this wasn't always the case.\n\nIf you couldn't hunt properly, you or even your... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Cock-of-the-rock"
],
[
"http://www.stlzoo.org/files/3013/0798/4180/lesser_kudu.jpg",
"http://cache1.asset-cache.net/gc/476852491-kirks-dik-dik-female-and-male-mpala-research-gettyimages.jpg?v=1&c=IWSAsset&k=2&d=ZTmeFDBnVAvryVwpNbBLBA%2FiCx6Aa5OV16DVh... | |
35zwzd | what did locke mean by 'property' in life, liberty, property? | I've read it's physical property. I've also read it's dignity - and that's why Jefferson changed it. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/35zwzd/eli5_what_did_locke_mean_by_property_in_life/ | {
"a_id": [
"cr9edwy",
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"score": [
2,
3
],
"text": [
"It really just means property, the pursuit of happiness also means acquiring property but it's a more broad statement, also meaning the right to do what you like to be happy. ",
"Locke had this idea that you own your pro... | [] | [] | [
[],
[]
] | |
7gyhb5 | The collapse of the Western Roman Empire is perieved as the end of an era and the beginning of another, but how did life for the average European farmer change after the fall of the Roman Empire? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7gyhb5/the_collapse_of_the_western_roman_empire_is/ | {
"a_id": [
"dqo981s"
],
"score": [
3
],
"text": [
"Although there's certainly more to say, especially with regards to agricultural productivity in late antiquity and the fall of the Empire's impact on the mediterranean \"common market\" for agricultural goods, we've actually gotten a number of qu... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/7dt269/what_happened_to_the_inhabitants_of_roman_cities/dq0gwxc/",
"https://www.reddit.com/r/AskHistorians/comments/4dclc7/what_exactly_happened_to_the_city_of_rome_after/d1qhl1q/"
]
] | ||
3a7mt3 | Why do Chinese cash coins have square holes? | I know the holes are there so the coins can be strung together for ease of use. But is there any particular reason the holes are square as opposed to round? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3a7mt3/why_do_chinese_cash_coins_have_square_holes/ | {
"a_id": [
"csa7eib",
"csabii5"
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"score": [
11,
30
],
"text": [
"hi! it may be worth x-posting this one to the coin collectors in /r/coins or /r/Numismatics ",
"So the best answer i could find on the webs states that the real reason was likely practical: Ancient Chinese coins were c... | [] | [] | [
[],
[
"http://www.charm.ru/library/faq004.htm",
"https://en.wikipedia.org/wiki/Ancient_Chinese_coinage"
]
] | |
47kh5d | How enthusiastically did “ordinary” Germans join Nazis in antisemitic discrimination and violence before 1939? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/47kh5d/how_enthusiastically_did_ordinary_germans_join/ | {
"a_id": [
"d0eetyh"
],
"score": [
13
],
"text": [
"While I can't exactly answer how enthusiastic they were about it but I can write something about ordinary Germans joining in active measures of discrimination and violence before 1939.\n\nGenerally, people higher up in the Nazi party were not fo... | [] | [] | [
[]
] | ||
8limtg | what are the differences between regionalized, decentralized, and centralized states? | I recently saw [this map](_URL_0_) on wikipedia and I saw no explanation or examples of how these systems of government differ. They are all supposedly decentralized, with certain responsibilities being removed from the federal state, but to what extent and how they all differ is not explained. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8limtg/eli5_what_are_the_differences_between/ | {
"a_id": [
"dzftuur",
"dzfvrwq"
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"score": [
3,
3
],
"text": [
"Centralised vs decentralised (I'm using British spelling) is about how much power the central government is vs how much power the parts of the country have.\n\nIn a highly centralised country, there is one government for the... | [] | [
"https://en.wikipedia.org/wiki/Regional_state#/media/File:Territorial_organization_of_European_countries.svg"
] | [
[],
[]
] | |
1shvel | The extent of the Jewish involvement in the October Bolshevik Revolution, and in Government in the period immediately following it. | Is anyone here an expert in this area? I'd love to hear some well informed answers.
Thanks! | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1shvel/the_extent_of_the_jewish_involvement_in_the/ | {
"a_id": [
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"score": [
3,
5
],
"text": [
"I'm not an expert in that specific area, but I can dig up some sources. [This party census](_URL_1_) says that slightly over 5% of party members in 1924 were Jewish. Wikipedia cites [this source](_URL_0_) for other figures... | [] | [] | [
[
"http://www.sem40.ru/anti/7820/",
"http://upload.wikimedia.org/wikipedia/commons/d/d0/1924_Chart_-_Conditions_in_Russia.png",
"http://www.friends-partners.org/partners/beyond-the-pale/english/39.html"
],
[
"http://en.wikipedia.org/wiki/Lazar_Kaganovich",
"http://mishpoha.org/n29/29a21.php"... | |
bkiuwf | Why isn't the Ummayad Caliphate talked about like the Roman and Persian Empires? | It was as big or bigger than both of the aforementioned empires and it played a signifigant part in European history (Not to say that if something isn't European it isn't important, it's just that a lot of written history is rather euro-centric) in the muslim conquest of Iberia. What is the reason for this ommision? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/bkiuwf/why_isnt_the_ummayad_caliphate_talked_about_like/ | {
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"text": [
"I’d wager that It really depends on the classes you take. In high school, I learned fuckall about anything that wasn’t western Europe or the US (including barely anything about Persia) simply because m... | [] | [] | [
[],
[],
[]
] | |
gfo77 | Any counter arguments to the "evolution doesn't make sense mathematically" argument? | I just posted the question over in r/evolution, and didn't get much of a response. I've heard this argument before, and was wondering if anyone has a math based counter argument. | askscience | http://www.reddit.com/r/askscience/comments/gfo77/any_counter_arguments_to_the_evolution_doesnt/ | {
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"Could you elaborate on what the argument is aga... | [] | [] | [
[],
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"http://www.freewebs.com/scikidus/evolution/index.html"
],
[],
[],
[],
[],
[],
[],
[],
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] | |
3mkil5 | why do smart people "look smart"? | More specifically: what is it about the facial expression and particularly the eyes of intelligent people that makes it easy to tell that they're intelligent? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3mkil5/eli5why_do_smart_people_look_smart/ | {
"a_id": [
"cvfsztv"
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"score": [
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"text": [
"The eyes that follow a person's movements and respond to speech and show engagement are my first clue. I once knew a lady and didn't like her very much, but the first thing I noticed about her was her intelligent eyes. From that point on, I r... | [] | [] | [
[]
] | |
dyx8s0 | What are some small events in the American Revolution that Historians still disagree on? | I’m not talking about big overarching questions like what the actual cause of the revolution was. Im more interested in small, seemingly irrelevant events that people still can’t come to a concensus on. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dyx8s0/what_are_some_small_events_in_the_american/ | {
"a_id": [
"f84mpsa"
],
"score": [
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],
"text": [
"Perhaps the most interesting is the mysterious death of Jane McCrea. Jane was the daughter of a Presbyterian minister from New Jersey, and in July 1777 was living with her older brother outside Saratoga, New York. \n\nHer brother was called up b... | [] | [] | [
[]
] | |
5o22h2 | Are there animals that nurse or feed each others young? | Examples of kangaroos sharing pouches, birds sharing food with other babies. Mammals feeding birds? | askscience | https://www.reddit.com/r/askscience/comments/5o22h2/are_there_animals_that_nurse_or_feed_each_others/ | {
"a_id": [
"dcqm75z"
],
"score": [
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"text": [
"Plenty of examples in domestic animals like dogs and also some found in wild animals too. Some examples:\n\n_URL_1_\n\n_URL_0_"
]
} | [] | [] | [
[
"https://www.buzzfeed.com/stacylambe/16-animals-taking-care-of-other-animals",
"http://www.mirror.co.uk/news/world-news/surrogate-dogs-adopted-pigs-26-3731138"
]
] | |
1xtg2c | monsanto's patent on broccoli | What did they actually patent? What does their patent mean to us, what does it mean to farmers? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1xtg2c/eli5_monsantos_patent_on_broccoli/ | {
"a_id": [
"cfegcib",
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"score": [
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],
"text": [
"They patented a specific strain of broccoli. It doesn't mean anything to us or to farmers, since it's just that strain; the broccoli you buy at the grocery store isn't affected.\n\nSome people thought that they patented *all... | [] | [] | [
[],
[]
] | |
2ibn9p | why does plaque feel fuzzy on my tongue? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2ibn9p/eli5why_does_plaque_feel_fuzzy_on_my_tongue/ | {
"a_id": [
"cl176tg"
],
"score": [
2
],
"text": [
"Do you mean bacteria on teeth plaque or trophy and medal plaques?"
]
} | [] | [] | [
[]
] | ||
3t434q | Why is there no Asian Sahara? | I understand that subtle wobble in the tile of the earth is the likely cause of the Sahara becoming desert. This is a huge area of catasrophic change - is there any evidence of similarly massive regional climate change at the same time elsewhere? | askscience | https://www.reddit.com/r/askscience/comments/3t434q/why_is_there_no_asian_sahara/ | {
"a_id": [
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"score": [
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"text": [
"Air and ocean currents in the Indian Ocean supply South Asia with vast amounts of rainfall. There is a desert to the Northeast of the Himalayas when those clouds run into the mountains and dump their moisture on the Southern and Western slopes."... | [] | [] | [
[]
] | |
aypszp | How did Europe go from slavery to serfdom in Late Antiquity / Early Middle Ages? | I understand this was asked similarly [before](_URL_0_), but you can see that the answer did not touch this point specifically. What economical / social / political causes allowed for the shift between being able to sell a person and working on a field of land a few days a week to pay the landlord? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/aypszp/how_did_europe_go_from_slavery_to_serfdom_in_late/ | {
"a_id": [
"ei35qq9"
],
"score": [
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],
"text": [
"It's been about a year since I did anything on this topic so forgive me for any mistakes I make in terms of the Historiography or nuances on the topic. The shift away from systems of slavery occurs far later than one might expect, it is around th... | [] | [
"https://www.reddit.com/r/AskHistorians/comments/36qigb/what_happened_to_the_roman_system_of_slavery/"
] | [
[]
] | |
71n1dg | why do many people get easily spooked by small animals that don't actually pose a thread? | Inspired by this post: _URL_0_
I could totally imagine that kid being like a 30 year old. Why is it that a seemingly large portion of people get easily freaked out by harmless animals? I'm guilty of this too but it just feels like things like squirrels, bugs, ducks, etc. tend to startle people a lot. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/71n1dg/eli5_why_do_many_people_get_easily_spooked_by/ | {
"a_id": [
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"score": [
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"text": [
"In the old days, small animals were common causes of disease. You could get a deadly flu from a chicken, or rabies or plague from a rat.",
"a)They are not life threatening but they can still hurt you. And no one wants to... | [] | [
"https://www.reddit.com/r/ChildrenFallingOver/comments/71lhcr/running_away_from_a_duck/"
] | [
[],
[]
] | |
2t0jjr | Today is the 80th anniversary of the introduction of tighty-whities. What were mens undergarments like before 1935? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2t0jjr/today_is_the_80th_anniversary_of_the_introduction/ | {
"a_id": [
"cnuluwj"
],
"score": [
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"text": [
"I did a quick run-down of the [history of men's and women's underwear](_URL_0_) in a previous post, but there's definitely room for someone more versed in 19th century fashion to expand!"
]
} | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/265b9n/when_did_people_start_wearing_underwear_did_men/"
]
] | ||
ampbk5 | Why does our Sun have so many planets compared to other stars/solar systems? | Our star has eight planets and numerous dwarf planets. On Wikipedia, I read that most stars only have 0 or 1 exoplanets. Is the difference:
a) our Sun is simply a statistical anomaly
b) other stars likely have similar numbers of exoplanets, but we can only detect large ones
c) related to something unique about our S... | askscience | https://www.reddit.com/r/askscience/comments/ampbk5/why_does_our_sun_have_so_many_planets_compared_to/ | {
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"efo90ln",
"efo9vqw",
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"efodk2b",
"efonafr",
"e... | [] | [] | [
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"https://www.reddit.com/r/space/comments/7pgij2/scientists_have_discovered_our_solar_system_is/?sort=top"
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[],
[],
[],
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"https://www.youtube.com/watch?v=cVe-V_UjB28"
],
[],
[
"https://arxiv.org/abs/1303.3028",
"https://www.space.com/37186-sun-long-lost-twin-nemesis.html",
"h... | |
7brswi | How is my daily life affected by quantum mechanics? Is it? | askscience | https://www.reddit.com/r/askscience/comments/7brswi/how_is_my_daily_life_affected_by_quantum/ | {
"a_id": [
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24
],
"text": [
"All chemistry is based on quantum mechanics, how electronic orbitals work and interact in chemical reactions, how folowers get their colour. And if we didn't have all this amazing chemistry biological compounds (DNA, sugars... | [] | [] | [
[],
[]
] | ||
5paq93 | How often did lower nobles within the same kingdom wage war against each other? | It is often depicted in fiction that Barons, Counts, and Dukes within the same kingdom would wage open war for titles or honor. How historical is this? What are some examples of monarchs' responses? How did the practice of vassals warring against each other change from Charlemagne's time to the renaissance? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5paq93/how_often_did_lower_nobles_within_the_same/ | {
"a_id": [
"dcqizfm"
],
"score": [
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],
"text": [
"Follow up: Did the structure of the Holy Roman Empire help or hinder member states going to war with other members?"
]
} | [] | [] | [
[]
] | |
dl92y3 | What happened to dukes, counts and barons in England? Do they still own vast tracts of land? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/dl92y3/what_happened_to_dukes_counts_and_barons_in/ | {
"a_id": [
"f4oo6eh"
],
"score": [
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],
"text": [
"While precise estimates are hard to come by- the simple answer to your question is yes. \n\nThe primary reason we do not know for sure is the UK Land Registry (wherein land owners are named) does not cover the whole of Britain. Ownership of land... | [] | [] | [
[]
] | ||
2rolwz | If all the clouds across the globe condensed into the ocean, how much liquid water would be produced? | Also, how much would the seas rise? | askscience | http://www.reddit.com/r/askscience/comments/2rolwz/if_all_the_clouds_across_the_globe_condensed_into/ | {
"a_id": [
"cnhviho"
],
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],
"text": [
"According to [this website](_URL_0_):\n\n\"One estimate of the volume of water in the atmosphere at any one time is about 3,100 cubic miles (mi^3 ) or 12,900 cubic kilometers (km^3 ). That may sound like a lot, but it is only about 0.001 percent... | [] | [] | [
[
"http://water.usgs.gov/edu/watercycleatmosphere.html",
"http://www.ngdc.noaa.gov/mgg/global/etopo1_ocean_volumes.html"
]
] | |
8x3idn | Is there a particular reason why the America’s were so much less developed compared to Europe & Asia? What caused Europe to develop empires, explore, advance technology, and all those things, whereas those in America were distinctly tribal and not up to par with their European counterparts? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8x3idn/is_there_a_particular_reason_why_the_americas/ | {
"a_id": [
"e20kfoe"
],
"score": [
2
],
"text": [
"Hi! While more can always be said on the subject, you should check out the [\"Technology and Civilization in the Americas\"](_URL_0_) section of the FAQ, where your specific question has previously been discussed."
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/wiki/nativeamerican#wiki_technology_and_civilization_in_the_americas"
]
] | ||
a01sgj | i watched a video about a girl who survives being hit by a car because she can't feel pain, therefore, not bracing for impact. if it's more ideal to relax, why do humans automatically tense up/brace for impact? what is the most optimal way to survive a crash? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a01sgj/eli5_i_watched_a_video_about_a_girl_who_survives/ | {
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"score": [
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"text": [
"This is also why the drunk person usually survives a DUI collision relatively unharmed while the other party has injuries. ",
"I was hit from the side by a van that ran through... | [] | [] | [
[],
[],
[],
[]
] | ||
29ww2s | Energy can be converted into matter and vice-versa. Can energy be converted into antimatter? | askscience | http://www.reddit.com/r/askscience/comments/29ww2s/energy_can_be_converted_into_matter_and_viceversa/ | {
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3,
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"text": [
"The terms \"matter\" and \"antimatter\" here are a bit misleading, because what we call \"matter\" in this context is just *ordinary* matter. Antimatter comprises the complementar... | [] | [] | [
[],
[],
[],
[]
] | ||
nigtf | Is it actually possible to set the atmosphere on fire? | I've heard it spoken about in some science fiction publications, but it sounded a little silly. Is there any truth to this? | askscience | http://www.reddit.com/r/askscience/comments/nigtf/is_it_actually_possible_to_set_the_atmosphere_on/ | {
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3,
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"text": [
"There isn't anything in the atmosphere that would serve as a fuel. For a fire to occur, you need at least two chemicals, an oxidizer... | [] | [] | [
[],
[
"http://www.nobelprize.org/nobel_prizes/physics/laureates/1968/alvarez-bio.html",
"http://www.hantsfire.gov.uk/firetriangle.htm",
"http://en.wikipedia.org/wiki/Impact_winter",
"http://www.newworldencyclopedia.org/entry/Mass_extinction#Theories"
],
[],
[],
[
"http://www.nobelprize... | |
1ab6i3 | Why was the WWI Armistice on 11/11 at 11:11? | Why were the elevens important? The teacher gave me a hint that it was about a secret society. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ab6i3/why_was_the_wwi_armistice_on_1111_at_1111/ | {
"a_id": [
"c8vr1ic"
],
"score": [
9
],
"text": [
"It's not a secret society... Conspiracy theorists love to claim that secret societies such as the illuminati have influenced major events in history. \n\nThis would likely be a question for one of the experts like Panzerkampfwagon or NMW to ans... | [] | [] | [
[]
] | |
2q7te4 | what is an aneurysm | I head Vegeta off, Dragon Ball Z abridged, say to Nappa he had an aneurysm out of sheer stupidity. Since then I've always wondered what it ment | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2q7te4/eli5_what_is_an_aneurysm/ | {
"a_id": [
"cn3nft9",
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"score": [
5,
3
],
"text": [
"dictionary [dik-shuh-ner-ee] \n\nnoun, plural dictionaries.\n\n1. a book, containing a selection of the words of a language, giving information about their meanings, pronunciations, etymologies, inflected forms, derived fo... | [] | [] | [
[],
[]
] | |
3qfj5q | When did Harvard become the most prestigious university in America (and maybe the world)? | Other than when it was the only university in America, obviously.
Also, not just when but HOW | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3qfj5q/when_did_harvard_become_the_most_prestigious/ | {
"a_id": [
"cwfi71i"
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"score": [
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"text": [
"I'm going to go on a limb and actually attempt to answer this question despite people's objections over the definition of prestigious.\n\nHarvard's prestige may have a large part to do with how old it is. For much of colonial New England's histor... | [] | [] | [
[]
] | |
1ooc5v | Was there any notable resistance by white people against Apartheid in South Africa? | I was reading some articles on wikipedia on Apartheid and there seemed to be resistance by white people against Apartheid in South Africa. I was wondering on what scale it was, if they used force or violence, who the notable figures were, if and how they cooperated with the black/coloured resistance or the ANC and, in ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ooc5v/was_there_any_notable_resistance_by_white_people/ | {
"a_id": [
"ccu6eg0"
],
"score": [
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"text": [
"Yes, and, to my knowledge, most of the prominent resisters (rather than the everyday resisters) were communists. Among the most prominent white resisters will always be [Joe Slovo](_URL_6_) (head of the South African Communist party 1984–1991, a... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Umkhonto_we_Sizwe",
"http://en.wikipedia.org/wiki/Helen_Joseph",
"http://en.wikipedia.org/wiki/Harry_Schwarz",
"http://en.wikipedia.org/wiki/Helen_Suzman",
"http://en.wikipedia.org/wiki/Arthur_Goldreich",
"http://en.wikipedia.org/wiki/Rivonia_Trial",
"http... | |
25bbfn | why can some people smoke and never get addicted, while other are addicted for life? | If nicotine is the factor which makes cigarettes addictive, and all the big brand cigarettes have it... Why is it some people can smoke today but then quit without having to deal with cravings at all by the next week?
I understand mind over matter etc. but what is the bigger factor mind or matter? and whats going on ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/25bbfn/eli5_why_can_some_people_smoke_and_never_get/ | {
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2,
3,
3
],
"text": [
"Not everyone is equally susceptible to addiction to cigarettes. I can chain smoke for a few weeks and then just stop for a few weeks without it being an issue. I'm not sure why t... | [] | [] | [
[],
[],
[],
[]
] | |
29r7n6 | why are electric cars and hybrids, which have more powerful motors, quieter than power drills and blenders? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/29r7n6/eli5_why_are_electric_cars_and_hybrids_which_have/ | {
"a_id": [
"cinovpy",
"cinp63b"
],
"score": [
6,
9
],
"text": [
"They have space for more sound dampening. Your car is quieter than a lawn mower for similar reasons.",
"The power tools and such might be using brushed motors which are notoriously louder than the brushless design I woul... | [] | [] | [
[],
[]
] | ||
gqjhs | If I had eyespots instead of eyes, what would I see? | I'm currently in Zoology and we did experiments with protists where we covered half of their dish with a black cloth, etc and watched them migrate to and from lit areas.
I know that they don't really "see" per say and that "sense" would be a better term, but I'm still really curious...
* How sensitive are their eyesp... | askscience | http://www.reddit.com/r/askscience/comments/gqjhs/if_i_had_eyespots_instead_of_eyes_what_would_i_see/ | {
"a_id": [
"c1piv5x"
],
"score": [
3
],
"text": [
"It seems you have access to most of the things to be able to run some experiments and answer some of these questions yourself. I'm sure your teacher/prof would support you in such a project.\n\nHow about modifying the experiment you did by shinin... | [] | [] | [
[]
] | |
2hkszs | When I rub my hands with hand-sanitizer, how do germs leave my hands? | askscience | http://www.reddit.com/r/askscience/comments/2hkszs/when_i_rub_my_hands_with_handsanitizer_how_do/ | {
"a_id": [
"cktl9rf"
],
"score": [
31
],
"text": [
"They don't leave your hands (immediately). The alcohol just kills them and breaks them open. \n\nThey fall off at a later point through friction or when your actually wash your hands in water."
]
} | [] | [] | [
[]
] | ||
11ez0r | Without mass production, how did Rome supply it's vast armies with weapons and armor? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/11ez0r/without_mass_production_how_did_rome_supply_its/ | {
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116,
9,
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41,
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"text": [
"By the use of production en masse of course. \n \nDedicated assembly line production with individual workers and work teams focuss... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Colosseum#Physical_description"
],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Roman_economy#Industrial_output"
],
[]
] | ||
axadua | how are our phones so resistant to bugs, viruses, and crashing, when compared to a computer? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/axadua/eli5_how_are_our_phones_so_resistant_to_bugs/ | {
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"ehslkzi",
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"ehszira",
"e... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
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[
"https://www.nytimes.com/2018/03/19/technology/facebook-cambridge-analytica-explained.html",
"https://www.theguardian.com/technology/2016/dec/13/uber-employees-spying-ex-partners-politicians-beyonce"
],
[
"http://cve.mitre.org/cgi-bin/cvekey.cg... | ||
4y27lj | what exactly are laminar and turbulent flows and how are they utilized by swimmers? | I know that a laminar flow follows a smooth path where none of the molecules disrupt each other's path and that turbulent is where the path isn't smooth and so little whirlpool type-things occur in the fluid but i don't really understand how they work and how they are used by swimmers. I didn't think the swimmer could ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4y27lj/eli5_what_exactly_are_laminar_and_turbulent_flows/ | {
"a_id": [
"d6kcarx"
],
"score": [
3
],
"text": [
"The swimmer doesn't control the pool, of course, they only control their body. The water in the pool isn't flowing, if you take the people out it becomes quite still.\n\nRather, the swimmer is moving through the water, and water is flowing aroun... | [] | [] | [
[]
] | |
1yagrj | Has there ever been an offensive or invasion in which both armies left, and couldn't find the other? | Like, let's say Italy launches a navy with a landing force to hit North Africa. North Africa did the same to Italy, and upon landing, both nations can't find their enemy's main force. Also applicable to land offensives.
Just using Italy and North Africa because they're the best locations I could think of. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1yagrj/has_there_ever_been_an_offensive_or_invasion_in/ | {
"a_id": [
"cfit94m"
],
"score": [
3
],
"text": [
"Sort of. Ancient armies used to keep screens a lot closer in than modern armies, usually within line of sitght of the main forces. this meant they had a very small footprint, maybe 4-5 miles wide while traveling, and sometimes they had to meander... | [] | [] | [
[]
] | |
cm8tbq | Why do Serotonin-Norepinephrine reuptake inhibitors reduce anxiety when Norepinephrine is an excitatory neurotransmitter? | As above. Why is it that SNRIs such as Effexor demonstrate efficacy in the treatment of anxiety disorders comparable to SSRIs when they also keep more Norepinephrine in the synapse? Is there some sort of downstream result of more norepinephrine that results in anxiolysis? (Neurogenesis, etc?) Could someone with actual ... | askscience | https://www.reddit.com/r/askscience/comments/cm8tbq/why_do_serotoninnorepinephrine_reuptake/ | {
"a_id": [
"ewgtn4f"
],
"score": [
2
],
"text": [
"You're not the only one to be confused. This phenomenon has been called [the Noradrenergic Paradox](_URL_3_). However, I will argue that it just looks like a paradox.\n\n[Noradrenaline doesn't cause anxiety](_URL_8_). Libet and Gleason had the ch... | [] | [] | [
[
"https://www.cell.com/trends/neurosciences/fulltext/S0166-2236(05)00243-2?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0166223605002432%3Fshowall%3Dtrue",
"https://www.boksem.nl/pdf/tops2009bc.pdf",
"https://www.frontiersin.org/articles/10.3389/fpsyg.2013.00710/full",
"http... | |
135g6e | Does turning your heat on in your car while driving waste gas? | If yes, is it an amount that actually makes a difference or is it a few cents every hour. I'm just curious since winter is here! and i have always heard people argue both ways | askscience | http://www.reddit.com/r/askscience/comments/135g6e/does_turning_your_heat_on_in_your_car_while/ | {
"a_id": [
"c70ylh8",
"c70yms4",
"c710t7r",
"c7119fx",
"c711nvb",
"c713aci",
"c718kbk"
],
"score": [
81,
3,
5,
2,
2,
16,
2
],
"text": [
"It is almost \"free\". Your engine normally has to rid itself of excess heat by transferring the heat to the env... | [] | [] | [
[],
[
"http://www.howacarworks.com/article/how-the-heating-and-ventilation-systems-work"
],
[],
[
"http://www.flixxy.com/audi-a8-diesel.htm"
],
[],
[],
[]
] | |
1z1jqv | Combining magnets: Stack or spread? | I have in my possession a large quantity of tiny, disc-shaped magnets. My problem is basically that of making a refrigerator magnet to hold a heavy item. The individual magnets are too weak to hold it, so I'm trying to combine them.
My question is, should I stack the magnets end to end, or spread them side-by-side? I ... | askscience | http://www.reddit.com/r/askscience/comments/1z1jqv/combining_magnets_stack_or_spread/ | {
"a_id": [
"cfptuff",
"cfpvgqs"
],
"score": [
2,
7
],
"text": [
"I have an answer! But I need to wait until I'm home to look at my notes from a magnetics course I took a few years ago for the specifics. But the basic idea is that the shape of the magnet plays a large role in the strength ... | [] | [] | [
[],
[]
] | |
fu3cm | concerning infinite temporal regress | a multifaceted question here: I was talking to a teacher of mine and he brought up St. Thomas Aquinas and his 5 proofs for god. At least two of his arguments deal with the assertion that it's impossible to have infinite temporal regress (e.i.: an infinite past) and that there must be a beginning reference point (my tea... | askscience | http://www.reddit.com/r/askscience/comments/fu3cm/concerning_infinite_temporal_regress/ | {
"a_id": [
"c1imx9x"
],
"score": [
5
],
"text": [
"The biggest problem with gravity since it was first understood all the way up to the modern era is the fact that *the universe exists.* By all rights, it *shouldn't.* All matter and energy should have collapsed into gravitational singularity aeon... | [] | [] | [
[]
] |
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