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 |
|---|---|---|---|---|---|---|---|---|---|
30ln2d | if the director's cut is different from the theatrical cut, then whose cut is the theatrical cut? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/30ln2d/eli5_if_the_directors_cut_is_different_from_the/ | {
"a_id": [
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"score": [
3,
4
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"text": [
"The producers' and studio's, essentially. The people putting up the money get final say. If their decisions differ wildly from the director's, the director may release a cut of his own later.\n\nThe director and producers bo... | [] | [] | [
[],
[]
] | ||
yz8ia | Did Japanese houses not get wet with only paper walls? How long have they been made like this? | Edit: So no answers huh? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/yz8ia/did_japanese_houses_not_get_wet_with_only_paper/ | {
"a_id": [
"c606na4",
"c60874m",
"c60ci4t"
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"score": [
7,
6,
4
],
"text": [
"I'm in no way a knowledgeable source, but I believe they had fairly large awnings and the rice paper most likely had a waxy outside coating, but this is just conjecture. Sorry I couldn't be of more help... | [] | [] | [
[],
[],
[]
] | |
1yrbqs | why hasn't the price of black market drugs changed 15 years when everything else has gone up? | A gram of Marijuana has been $10 or $200-240 an ounce since I was old enough to know what it was and how much it costs which has been about 17 years, its likely it has been those prices for even longer.
The cost of a chocolate bar has gone up 23% since 2000 alone, why has inflation / increased wages not effected th... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1yrbqs/eli5_why_hasnt_the_price_of_black_market_drugs/ | {
"a_id": [
"cfn2329",
"cfn4v6s"
],
"score": [
2,
2
],
"text": [
"The price of marijuana may not have changed, but other drugs do have changes in price. \n\nJust like any other good, they too follow principles of economics( supply-demand, inflation, etc )",
"Jesus you get your stuff fo... | [] | [] | [
[],
[]
] | |
99ccp4 | while sand is abrasive and opaque, why glass made from that is such smooth and transparent? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/99ccp4/eli5_while_sand_is_abrasive_and_opaque_why_glass/ | {
"a_id": [
"e4mik40",
"e4mj7ap",
"e4mj99m",
"e4mjhsj"
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"score": [
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"text": [
"Sand is mostly silicone dioxide and when melted it is changed at a molecular level. When it cools it forms a smooth clear substance.",
"Sand is basically quartz crystals, sharp... | [] | [] | [
[],
[],
[],
[]
] | ||
42ux0y | why do the same injuries hurt so much when you're young and when you're old you might not even notice it? | I remember my dad getting splinters out of my feet and it felt like it was the end of the world. Now, I cut myself open and superglue it together and get back to work. Why? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/42ux0y/eli5_why_do_the_same_injuries_hurt_so_much_when/ | {
"a_id": [
"czdax11"
],
"score": [
7
],
"text": [
"Pain is relative.\n\nWhen you were younger, your most painful moment could have been when you fell down and scraped your hands on the pavement. And then one day, you are getting your sprinters ripped out of your flesh AND OMG THIS HURTS MORE THAN... | [] | [] | [
[]
] | |
q4nia | If you mechanically separate a solid into one-molecule pieces, would it behave as a liquid? Why or why not? | Say you take a giant salt crystal and grind it so finely that no piece is larger than a single NaCl molecule. How would it behave? Would it flow like a liquid? Or would it clump together like a powder? If the latter, what's keeping it from acting like a liquid if all the molecules are separate and not bound into a soli... | askscience | http://www.reddit.com/r/askscience/comments/q4nia/if_you_mechanically_separate_a_solid_into/ | {
"a_id": [
"c3upv3o"
],
"score": [
10
],
"text": [
"If the molecules aren't in contact, you have temporarily created a gas.* Upon contacting each other, the molecules will bond and a solid will accumulate. At no point, assuming you're at standard temperature and pressure, will you have the condit... | [] | [] | [
[]
] | |
25zqj9 | Was the Christianity practiced by the western Roman Empire and Western Europe prior to the great schism more similar to modern day Catholicism or Eastern Orthodoxy? | Also, if so, why did this difference in religious practices between the Eastern and Western Romans emerge? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/25zqj9/was_the_christianity_practiced_by_the_western/ | {
"a_id": [
"chmes5q",
"chmfuxq"
],
"score": [
5,
94
],
"text": [
"The answer is going to be a little infuriating. Simply the Western (roman rite) Church developed into the Roman Catholic and then Protestant sects. The Eastern Church developed into the Eastern Orthodox Church. The churches... | [] | [] | [
[
"http://www.usccb.org/beliefs-and-teachings/ecumenical-and-interreligious/ecumenical/orthodox/filioque-church-dividing-issue-english.cfm",
"http://www.vatican.va/archive/ENG0015/_P17.HTM"
],
[]
] | |
1sqena | what are the pros and cons of a forward swept wing aircraft? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1sqena/eli5_what_are_the_pros_and_cons_of_a_forward/ | {
"a_id": [
"ce05azj",
"ce07ytj",
"ce0anuy"
],
"score": [
19,
9,
3
],
"text": [
"It's like having rear wheel steering- very maneuverable but not stable. \n\nEven more five year old- push your red wagon by the steering handle and see what happens. ",
"A major con of it is very h... | [] | [] | [
[],
[
"http://www.desktop.aero/adw/html/index.html"
],
[]
] | ||
47gydn | us congress and stocks, how are those things not a conflict of interest? | It just seems to me that the people in power of making laws in this nation shouldn't be able to both create laws and own stocks in the companies they are making laws for. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/47gydn/eli5_us_congress_and_stocks_how_are_those_things/ | {
"a_id": [
"d0cvxcp"
],
"score": [
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],
"text": [
"It is a complete and total conflict of interest. They briefly banned insider trading in the senate (?) but it was quietly removed. It's disgusting and certainly part of the reason people on both ends of the political spectrum are supporting \"out... | [] | [] | [
[]
] | |
1r3gmd | what causes my green eyes to vary in color throughout the day? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1r3gmd/eli5_what_causes_my_green_eyes_to_vary_in_color/ | {
"a_id": [
"cdj6rjd",
"cdj6rrb",
"cdj8wno"
],
"score": [
3,
2,
3
],
"text": [
"Your eye color doesn't really change, it's how we perceive it that changes. Now here are some factors that changes the color of your eye: the angle, type of light, and whether your eyes are dilated or n... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Color_constancy"
],
[
"http://en.wikipedia.org/wiki/Eye_color#Green"
]
] | ||
3e3qa7 | how is it that in 2015, we can't use science to accurately recreate stradivarius violins? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3e3qa7/eli5_how_is_it_that_in_2015_we_cant_use_science/ | {
"a_id": [
"ctb7aql",
"ctb7pf5"
],
"score": [
2,
6
],
"text": [
"We'd need to know what we were recreating. Where the wood came from and what the weather was like every single year that those trees grew, what chemicals were applied in what quantities and how, where was it stored and for h... | [] | [] | [
[],
[
"http://www.thestrad.com/cpt-latests/blind-tested-soloists-unable-to-tell-stradivarius-violins-from-modern-instruments/"
]
] | ||
3slmgb | how can judges legally require citizens to do "community service"? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3slmgb/eli5_how_can_judges_legally_require_citizens_to/ | {
"a_id": [
"cwyboi3",
"cwybpy4",
"cwybtip",
"cwybtxo",
"cwydkgq"
],
"score": [
11,
6,
3,
2,
2
],
"text": [
"Because the relevant lawmakers decided it would be a good idea, drafted laws to that effect, and passed them. That's what it takes to make something \"legal\... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
865hxp | Is there such thing as a double Gamma function similar to the Double Factorial? | After watching [blackpenredpen's latest video](_URL_0_) I was motivated to try to derive an analytic function for double gamma that would extend the double factorial to non-integer numbers.
I came up with the following: (i don't see this in the [wikipedia article](_URL_1_)
Define the Double Gamma Functio... | askscience | https://www.reddit.com/r/askscience/comments/865hxp/is_there_such_thing_as_a_double_gamma_function/ | {
"a_id": [
"dw2wwuy"
],
"score": [
25
],
"text": [
"You are seeking a function *F* that has the following properties for non-negative integers *z*:\n\n1. F(z + 1) = z!!\n2. F(z + 1)F(z) = Γ(z + 1)\n\nWe would also like *F* to be defined on some set larger than just the non-negative integers, say,... | [] | [
"https://www.youtube.com/watch?v=imcooZyo4vE&lc=z23yc1makpqodrhfsacdp435neaw1znbbormorii5ptw03c010c.1521647053424468",
"https://en.wikipedia.org/wiki/Double_factorial"
] | [
[
"https://i.gyazo.com/ddf0c722b5abdc53eeed720dda614865.png",
"https://i.gyazo.com/b937141fae01e1a9ed4d29aaf2258be3.png",
"https://i.gyazo.com/b2c4bab4e9f1d5d34eb3f5e1aaacc0bc.png",
"https://i.gyazo.com/a71e45501f97e015574bbde622069da9.png"
]
] | |
4rzctd | why does bushfire smog often appear red (i live in melbourne australia) and not just shades of gray? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4rzctd/eli5_why_does_bushfire_smog_often_appear_red_i/ | {
"a_id": [
"d55e53h"
],
"score": [
2
],
"text": [
"Our primary source of light is of course the sun. As we know, the visible spectrum can be simplified as red, orange, yellow, green, blue, indigo and violet. These are listed from [lowest to highest frequency \\(or largest to smallest wavelength\\... | [] | [] | [
[
"http://science.hq.nasa.gov/kids/imagers/ems/roygbiv_waves.gif",
"http://science.hq.nasa.gov/kids/imagers/ems/visible.html"
]
] | ||
2927yd | What historical abuses of diplomatic immunity, if any, have occurred? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2927yd/what_historical_abuses_of_diplomatic_immunity_if/ | {
"a_id": [
"cigpgue",
"cigpqq3"
],
"score": [
3,
2
],
"text": [
"The Libyan Embassy incident in London comes to mind, where automatic weapons fire from inside the embassy killed a London policewoman. No one was ever prosecuted.\n_URL_0_\n\n_URL_1_\n\n",
"Sorry, we don't allow [through... | [] | [] | [
[
"http://news.google.com/newspapers?nid=2519&dat=19840418&id=3aFdAAAAIBAJ&sjid=-FwNAAAAIBAJ&pg=3533,2942629",
"http://en.wikipedia.org/wiki/Murder_of_Yvonne_Fletcher"
],
[
"http://www.reddit.com/r/AskHistorians/wiki/features/trivia",
"http://www.reddit.com/r/AskHistorians/wiki/r... | ||
y9juh | What cool counter cultural movements were there before the 20th century? | whenever someone talks about a "counter-culture" it usually refers to the last century or so, did they exist before then in a big enough way to impact the world? What were they?
Btw I don't mean the "fuck yeah topple the government and behead the king" kind of movement | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/y9juh/what_cool_counter_cultural_movements_were_there/ | {
"a_id": [
"c5tjonj",
"c5tldcv",
"c5tmlf5",
"c5to5d9",
"c5trg01",
"c5tu3ly"
],
"score": [
41,
10,
4,
12,
8,
2
],
"text": [
"Well, from around 700-200BCE China was divided into warring states (the severity of the warring definitely increased over time), and ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Mozi",
"http://en.wikipedia.org/wiki/Mohism"
],
[
"http://harkavagrant.com/index.php?id=228"
],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Ars_subtilior"
]
] | |
ip18t | "Tequila makes me so crazy." Any truth to different liquors and different effects? | Is there any evidence for different types of liquor having different effects, especially on the brain? Talk to most anyone who drinks, and they'll tell you - tequila, no, I'll be dancing on the table; gin makes me angry; bourbon gets me drunk so fast. Is there any research that supports this? | askscience | http://www.reddit.com/r/askscience/comments/ip18t/tequila_makes_me_so_crazy_any_truth_to_different/ | {
"a_id": [
"c25irqa",
"c25irrq",
"c25jtnr",
"c25kiui"
],
"score": [
37,
2,
3,
3
],
"text": [
"[Do different types of alcoholic beverages really induce different types of drunkenness?](_URL_0_), asked a few days ago :)",
"Could an experiment on something like this even ... | [] | [] | [
[
"http://www.reddit.com/r/askscience/comments/ihoaz/do_different_types_of_alcoholic_beverages_really/"
],
[],
[],
[
"http://revistapesquisa.fapesp.br/?art=2165&bd=1&pg=1&lg="
]
] | |
34e5yv | What did Confucianism and Neo-Confucianism have to say about sex? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/34e5yv/what_did_confucianism_and_neoconfucianism_have_to/ | {
"a_id": [
"cqu6v1q"
],
"score": [
2
],
"text": [
"Sexuality wasn't a central concern of Confucianism, not as it is in Abrahamic religions. Propriety and temperance (as in, avoiding any physical excesses) are the main emphasis. \n\nSo, there's an old book called *The Ethics of Confucius* by MM Da... | [] | [] | [
[
"http://www.sacred-texts.com/cfu/eoc/eoc08.htm",
"http://www.indiana.edu/~p374/Mengzi.pdf"
]
] | ||
w5o9p | Yesterday there was a thread about how people in medieval times dealt with pain. As a follow up, how did pain management progress from the medieval period to the advent of evidence-based medicine? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/w5o9p/yesterday_there_was_a_thread_about_how_people_in/ | {
"a_id": [
"c5am7ap"
],
"score": [
2
],
"text": [
"Can anyone link to the referenced thread?"
]
} | [] | [] | [
[]
] | ||
428wcl | what is actually happening when matrices are being multiplied? | I often have trouble recalling the restrictions of matrix multiplication and how to perform the multiplication by hand. Without an understanding of what the math is representing, I find the operation more difficult than I should. Is there an intuitive way to understand this operation? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/428wcl/eli5_what_is_actually_happening_when_matrices_are/ | {
"a_id": [
"cz8k620",
"cz8luq4"
],
"score": [
2,
2
],
"text": [
"When you do the typical scalar product on two vectors, you are essentially adding the contributions of every entry on the vectors to get a specific number. Also, these scalar products are usually written as a (row vector) x ... | [] | [] | [
[],
[
"http://mathworld.wolfram.com/DotProduct.html",
"http://mathworld.wolfram.com/images/eps-gif/DotProduct_1000.gif",
"https://upload.wikimedia.org/math/9/4/d/94d092558445b6aa77739fa99dea4dbc.png"
]
] | |
2y6don | How large could an iron cube floating in zero gravity be before its own gravity would start to re shape it into a ball? | askscience | http://www.reddit.com/r/askscience/comments/2y6don/how_large_could_an_iron_cube_floating_in_zero/ | {
"a_id": [
"cp6wdow",
"cp71wlz",
"cp72hvm",
"cp731i0",
"cp742jt",
"cp758te"
],
"score": [
74,
8,
2,
7,
41,
3
],
"text": [
"Consider asteroids (not metallic iron, but this is the best I can come up with). They are irregularly shaped as they are small, but i... | [] | [] | [
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Hydrostatic_equilibrium#Planetary_geology"
],
[
"http://en.wikipedia.org/wiki/IAU_definition_of_planet",
"http://en.wikipedia.org/wiki/Ultimate_tensile_strength"
],
[]
] | ||
cp15qe | what do scientists means when they say that the "big bang happened everywhere and not at one single point"? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cp15qe/eli5_what_do_scientists_means_when_they_say_that/ | {
"a_id": [
"ewmid27",
"ewmioy6"
],
"score": [
2,
13
],
"text": [
"When we look at the universe we see that the distances between far away things are getting larger. This means that a long time ago they were smaller. If we use math and scientific observations we find that the universe was ... | [] | [] | [
[],
[]
] | ||
146go5 | why do condoms not always prevent the spread of std's? | What's the deal with that? It acts like a barrier, so why do some diseases still get through? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/146go5/eli5_why_do_condoms_not_always_prevent_the_spread/ | {
"a_id": [
"c7aa3ri",
"c7ad78c"
],
"score": [
5,
2
],
"text": [
"Sometimes condoms break.\n\nSome STIs can spread through skin to skin contact, and not all infected skin is always covered by a condom.",
"Also, people.\n\nThe effectiveness rate of prophylactics or birth control would b... | [] | [] | [
[],
[]
] | |
371397 | Why did the Japanese not follow up successes in 1941 with an attack on Australia crushing allied forces and bases there? | No professor has had an answer | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/371397/why_did_the_japanese_not_follow_up_successes_in/ | {
"a_id": [
"crite1k"
],
"score": [
14
],
"text": [
"There were plans made for such an attack. In 1941 and early 1942, Australia posed a major threat to Japanese plans. Troops and ships escaping from the Dutch East Indies could flow southwards to bases in Western Australia. Aircraft based in the N... | [] | [] | [
[
"https://www.aph.gov.au/binaries/library/pubs/bp/1992/92bp06.pdf"
]
] | |
6itpij | What is this red line on the left side of the Sun? | _URL_0_ | askscience | https://www.reddit.com/r/askscience/comments/6itpij/what_is_this_red_line_on_the_left_side_of_the_sun/ | {
"a_id": [
"dj8z97m"
],
"score": [
15
],
"text": [
"It only appears in a single frame (which are about 12 seconds apart) so best guess is that the bright spot is the impact point of a cosmic ray, these bright points are called hot pixels. As for the trail leading from it, it was a big enough or ... | [] | [
"https://beta3.helioviewer.org/?date=2015-06-14T14:48:26.000Z&imageScale=2.42044088&centerX=-240.22875734000002&centerY=-99.8431863&imageLayers=%5BSDO,AIA,304,1,100%5D&eventLayers=&eventLabels=true"
] | [
[]
] | |
3b7xxe | there are billions of people that have died since the current form of burial has been around. so why isn't the world littered with cemeteries? | I feel like there should be way more cemeteries around judging by the amount of people in the world and the amount of people that die everyday. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3b7xxe/eli5there_are_billions_of_people_that_have_died/ | {
"a_id": [
"csjo539",
"csjouap",
"csjprxg",
"csk9zaw"
],
"score": [
13,
8,
3,
2
],
"text": [
"Bodies and coffins decay. Depending on the soil, it doesn't even necessarily take that long. I have personally worked in cemetaries only around 100 years old where the only traces... | [] | [] | [
[],
[],
[],
[]
] | |
4k2753 | smartphone progression getting slower. | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4k2753/eli5_smartphone_progression_getting_slower/ | {
"a_id": [
"d3bhzc3",
"d3bjc7t"
],
"score": [
2,
5
],
"text": [
"One reason is marketing.\n\nCompanies want you hooked on their brand, so they will push out product with slightly better specs each year to make sure people are upgrading.\n\nAs far as the technology itself, the first touch ... | [] | [] | [
[],
[]
] | |
2gn3qs | If Earth's rotational speed decreased, then would the strength of the Earth's magnetic field decrease? | Is there a connection between the rotational velocity of a magnet/Earth and the field it produces? | askscience | http://www.reddit.com/r/askscience/comments/2gn3qs/if_earths_rotational_speed_decreased_then_would/ | {
"a_id": [
"ckkq5tl"
],
"score": [
2
],
"text": [
"\nEarth's magnetic field is not produced in the same way as permanent magnets (like fridge magnets) creates their magnetic field. The theory behind earth's magnetic field is called [dynamo theory](_URL_0_) and the rotation of earth is quite impor... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Dynamo_theory"
]
] | |
43c8f8 | why are the voices in peoples heads so negative? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/43c8f8/eli5_why_are_the_voices_in_peoples_heads_so/ | {
"a_id": [
"czh65xk"
],
"score": [
3
],
"text": [
"That's actually not universal. \"The voices\" seem to be cultural and are different depending on the society. "
]
} | [] | [] | [
[]
] | ||
4t1bjl | What were old mattresses made from? | As I rolled around on my very comfortable mattress this morning I wondered what mattresses were made of in say the 1200s. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4t1bjl/what_were_old_mattresses_made_from/ | {
"a_id": [
"d5e6qlc"
],
"score": [
3
],
"text": [
"The first mattresses of the Neolithic period were made of animal skins, possibly supported by leaves, grass, or hay. Later in history, everybody had their own types mattresses, Persians would use goat skins filled with water, while Egyptians used... | [] | [] | [
[]
] | |
6eusz5 | Is there a difference between turning electronics off with power button versus unplugging them to turn off? | The reason I ask:
I bought a few "wifi plugs", where I can control appliances on/off with my phone (like my TV, air conditioner, and coffee machine).
I noticed the TV doesn't like being unplugged and takes a bit longer to boot up afterwards. Is there an engineering reason for this? | askscience | https://www.reddit.com/r/askscience/comments/6eusz5/is_there_a_difference_between_turning_electronics/ | {
"a_id": [
"did7gzd",
"didbcb3",
"didieny",
"dieizeb"
],
"score": [
7,
6,
3,
3
],
"text": [
"When you switch off a TV by the remote, it's actually going into \"standby mode\" where some components are kept \"warm\" in order to switch on faster next time. When you unplug a ... | [] | [] | [
[],
[],
[
"http://cds.linear.com/docs/en/datasheet/2955fa.pdf"
],
[]
] | |
49prrr | why is there still a charge for video games that were made by developers that go out of business? | e.g. Irrational Games, Lionhead Studios (in the future)
I imagine it has to do with the fact that its not the developer that gets paid directly but rather the publisher, who then distributes the portion back to the developer. If that's the case then if a dev goes under, does the publisher get to retain all of those ge... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/49prrr/eli5_why_is_there_still_a_charge_for_video_games/ | {
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"text": [
"When studios go under, or are forced to fold their IP usually gets auctioned out. The owners of the IP would receive profits from all sales of products the IP they bought covers.\... | [] | [] | [
[],
[],
[],
[]
] | |
95jz14 | I there are blind and deaf people, are there any people with no sense of taste? | askscience | https://www.reddit.com/r/askscience/comments/95jz14/i_there_are_blind_and_deaf_people_are_there_any/ | {
"a_id": [
"e3tko28",
"e3ty9eq"
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"score": [
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6
],
"text": [
"Short answer: yes, and here's a [first-hand account](_URL_3_).\n\nLong answer: It's tricky to separate taste and smell. The loss of the sense of smell is a condition called anosmia. The loss of the ability to taste without ... | [] | [] | [
[
"https://www.anosmiafoundation.com/taste.shtml",
"http://mentalfloss.com/article/30737/if-you-can%E2%80%99t-smell-can-you-taste",
"https://rarediseases.info.nih.gov/diseases/9486/congenital-anosmia",
"https://www.nytimes.com/2003/09/22/health/a-matter-of-taste-i-was-a-middle-aged-anosmic.html"
]... | ||
19spr8 | Are all members of one species descended from a single individual? | I heard that all of humanity may or may not be descended from one couple and that it was impossible to not be because we have certain genes in common. Thanks. | askscience | http://www.reddit.com/r/askscience/comments/19spr8/are_all_members_of_one_species_descended_from_a/ | {
"a_id": [
"c8r22hw",
"c8r28ww",
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"score": [
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"text": [
"No, speciation usually happens when two populations of the same species are physically (or in some other fashion) separated and different environments lead to increasingly different traits and genetic m... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Polyploid#Polyploidy_in_plants"
]
] | |
6fayu5 | Unknown origin of postcard from WWII. | My grandmother showed me a letter from her father who was in the U.S. Navy in WWII. I need help figuring out where this postcard is from.
[here is the postcard that she gave me](_URL_0_) | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6fayu5/unknown_origin_of_postcard_from_wwii/ | {
"a_id": [
"digvtpl"
],
"score": [
7
],
"text": [
"This was Ginza Street in Mudanjiang, Manchuria, China. It was under Japanese occupation since 1931, hence the name \"Ginza\" after a district of Tokyo, and the city was called \"Botankou\" by the Japanese. That's the reading of the Chinese charac... | [] | [
"http://imgur.com/a/5CBGt"
] | [
[
"https://en.wikipedia.org/wiki/Mudanjiang#/media/File:Mdj-1942.jpg"
]
] | |
ih7dz | Can someone explain body fat's role in coronary heart disease? | From what I understand, coronary heart disease is usually caused by fatty material collecting on the walls of your arteries to form plaque. The artery gets more narrow and less elastic, so your heart has to work harder to pump the blood through it. This can cause tissue damage, blood clots, aneurysms, stokes, heart att... | askscience | http://www.reddit.com/r/askscience/comments/ih7dz/can_someone_explain_body_fats_role_in_coronary/ | {
"a_id": [
"c23q43n",
"c23ss5z"
],
"score": [
3,
2
],
"text": [
"I studied this a bit during my undergraduate thesis on heart imaging so I'll put a few words in. \n\n1) The heart itself is a muscle and has smaller arteries to supply it. If the artery becomes blocked, then the constantly w... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Renin-Angiotensin-Aldosterone_system",
"http://en.wikipedia.org/wiki/Series_and_parallel_circuits#Series_circuits"
]
] | |
pr45x | When brain cells are replaced, do the memories held by the old brain cells come back with the new ones? | askscience | http://www.reddit.com/r/askscience/comments/pr45x/when_brain_cells_are_replaced_do_the_memories/ | {
"a_id": [
"c3rlad8",
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"score": [
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"text": [
"Wow. This is a big question.\n\nThere'll be stacks on by a heap of people shortly, so just a few short points.\n\nFirst, it's unlikely that single neurons hold memories. The theory these days that memories are rather stored... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Adult_neurogenesis",
"http://en.wikipedia.org/wiki/Hippocampus"
],
[]
] | ||
jikho | when do i properly use the word "literally?" | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jikho/when_do_i_properly_use_the_word_literally/ | {
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"c2cetyh",
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"score": [
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2,
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"text": [
"Most of the time when someone uses the term literally wrong, what they mean is figuratively, so the best way to answer this I think is t... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | ||
3mse2u | the evolutionary advantage to emotions | Wouldn't not having emotions make is better at survival? Insects, as far as we know, don't have emotions and they seem fine. Side question; Why do we have emotions/feelings? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3mse2u/eli5_the_evolutionary_advantage_to_emotions/ | {
"a_id": [
"cvhq05p",
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"text": [
"Emotions serve as a motivator to engage in survival behaviors. On a basic level, emotions are punishments and rewards inside our own brains, in response to our own behavior. \n\nInsects can get by without emotion (at least,... | [] | [] | [
[],
[]
] | |
ntz6z | Afghanistan history | I'm looking for books that focus on early Afghanistan history, culture, as well as during the Soviet invasion. I want books that focus on Afghanistan, not foreign powers interested in them (so far I've found books about the Soviets and Americans in the country, but none about what Afghanistan thought and did, as a cou... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/ntz6z/afghanistan_history/ | {
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"c3c291z",
"c3bx9jf",
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"score": [
2,
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],
"text": [
"I have a book I never finished. Let me go and see if I can find it. Pretty much what you're looking for if I can recall",
"You might like [My Khyber Marriage](_URL_3_) and [Val... | [] | [] | [
[],
[
"http://www.amazon.com/Places-Between-Rory-Stewart/dp/B002IT5OS4/ref=sr_1_1?s=books&ie=UTF8&qid=1325141336&sr=1-1",
"http://www.amazon.com/gp/product/0863040470/ref=oh_o04_s00_i00_details",
"http://www.amazon.com/Taliban-Militant-Fundamentalism-Central-Second/dp/0300163681/ref=pd_luc... | |
1xwn9q | what is a "house majority whip"? | I'm watching House of Cards | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1xwn9q/eli5_what_is_a_house_majority_whip/ | {
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"cff9htx",
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"text": [
"\"Whips\" the others in the party into line. \n\nMajority means that he/she is a member of the party that currently holds the most seats in the House of Representatives. Currently,... | [] | [] | [
[],
[],
[],
[]
] | |
5crqep | do all presidents use air force one for campaigning? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5crqep/eli5_do_all_presidents_use_air_force_one_for/ | {
"a_id": [
"d9yt67z",
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],
"score": [
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2,
3
],
"text": [
"While you are the President of the United States ALL airplanes that you set foot on get the call sign Air Force One. All of them. \n\nThe specific plane that you think of as Air Force One is specially d... | [] | [] | [
[],
[],
[]
] | |
ldlkh | What determines the speed of ripples propagating on a surface of water? | E.g., if I drop a giant stone in a still pool of water, it takes a few seconds for the ripples to go even a few metres. Googling hasn't turned up much for me. I'm guessing it's unrelated to the speed of sound in water considering how slow it is. Does it have something to do with surface tension? What property of the wa... | askscience | http://www.reddit.com/r/askscience/comments/ldlkh/what_determines_the_speed_of_ripples_propagating/ | {
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"c2rxkbf"
],
"score": [
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23,
15,
2,
2,
3,
23,
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],
"text": [
"[Here is a link](_URL_0_) for calculating th... | [] | [] | [
[
"http://hyperphysics.phy-astr.gsu.edu/hbase/watwav.html"
],
[
"http://en.wikipedia.org/wiki/Dispersion_%28water_waves%29"
],
[
"http://en.wikipedia.org/wiki/Dispersion_%28water_waves%29"
],
[
"http://www.scienceisart.com/B_Waves/Waves.html"
],
[],
[
"http://hyperphysics.phy-a... | |
3yvv2o | what is a steam arg, and what does arg stand for? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3yvv2o/eli5_what_is_a_steam_arg_and_what_does_arg_stand/ | {
"a_id": [
"cyh4034"
],
"score": [
2
],
"text": [
"ARG stands for \"Alternate Reality Game,\" where the gameplay is layered on top of real life. One notable example is \"I Love Bees,\" an ARG that came out for Halo 2 that had people listening at payphones all over the country, piecing together cl... | [] | [] | [
[]
] | ||
8fu75q | Are there naval mines floating around the ocean/rivers from when they were used in wars, similar to how there are leftover landmines in Vietnam? How long do the naval mines last? | For example, the British dropped hundreds of thousands of mines to protect their shipping during WW2 - have those all been neutralized, or are there areas that are no go zones for shipping due to unexploded mines. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8fu75q/are_there_naval_mines_floating_around_the/ | {
"a_id": [
"dy6uzu9"
],
"score": [
14
],
"text": [
"I’ve never heard of any such areas and highly doubt they exist. \n\nFirst things first seawater is extremely corrosive. Rust stains on ships are common even before they’re completed. Spend some time on r/WarshipPorn, extensive rust pops up every... | [] | [] | [
[
"http://www.dtic.mil/docs/citations/ADA438971",
"http://www.laffey.org/2009_dry_dock_photo_page_courtes.htm",
"http://www.combinedfleet.com/Kuri_t.htm"
]
] | |
mw50k | Would spherical wheels (on cars, trucks etc.) provide any benefits? If yes, are they even close to feasible? | I've seen concept cars with spherical wheels and I have always been curious to find out if they would be better than what we have? And how would we make them work? | askscience | http://www.reddit.com/r/askscience/comments/mw50k/would_spherical_wheels_on_cars_trucks_etc_provide/ | {
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"score": [
7,
5,
5,
7,
5,
5
],
"text": [
"There was a time when cars had \"balloon\" tires with weak sidewalls and with the tires much higher in diameter than the rims. The probl... | [] | [] | [
[],
[],
[
"http://arstechnica.com/science/news/2008/09/paging-spiderman-new-material-mimics-gecko-feet.ars",
"http://en.wikipedia.org/wiki/Van_der_Waals_force"
],
[],
[],
[
"http://arstechnica.com/science/news/2008/09/paging-spiderman-new-material-mimics-gecko-feet.ars",
"http://en.wikip... | |
8qvwuf | When Battlefield V revealed women as playable characters, some people reacted negatively. They say women did not fight on the front lines in World War II, and that the game is "historically inaccurate" and "disrespectful". How often did women ACTUALLY fight on the front lines in World War II? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8qvwuf/when_battlefield_v_revealed_women_as_playable/ | {
"a_id": [
"e0mhk0v",
"e0mhq3g"
],
"score": [
2,
8
],
"text": [
"[I have previously written on the case of Battlefield V and the case of British women in this post. ](_URL_0_) If you have any further questions about this, the reception of Battlefield V, or the case of \"historical accurac... | [] | [] | [
[
"https://old.reddit.com/r/AskHistorians/comments/8lmzi9/in_the_new_battlefield_v_trailer_a_women_is_seen/"
],
[
"https://www.reddit.com/r/AskHistorians/comments/8lxrl3/how_many_female_soldiers_saw_combat_in_ww2/"
]
] | |
3v7mbr | What causes these vertical lines that sometimes come stretching out of the top of a flame? | [Picture \(imgur direct link\) for reference.](_URL_0_)
I've seen this before and always found it strange. I took a picture in part to rule out it being something to do with my eyes/brain. A few minutes of googling didn't get me any information at all. The lines don't always appear, don't always appear in the same siz... | askscience | https://www.reddit.com/r/askscience/comments/3v7mbr/what_causes_these_vertical_lines_that_sometimes/ | {
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"score": [
41,
54,
5,
8,
2
],
"text": [
"Just guessing, but I think those are jets of liquid gas from the lighter. There's probably a burr or something on the edge of the gas nozzle. Normally the n... | [] | [
"http://i.imgur.com/kozfar6.jpg"
] | [
[],
[
"http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/Articleimage/2014/CP/c4cp03330b/c4cp03330b-f1_hi-res.gif",
"http://www.chem.unifr.ch/ma/dir_allan/candle.html",
"https://upload.wikimedia.org/wikipedia/commons/0/08/Bunsen_burner_flame_types.... | |
3m9k84 | i want to know basic electrical terms and how they mesh together. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3m9k84/eli5_i_want_to_know_basic_electrical_terms_and/ | {
"a_id": [
"cvd7a12"
],
"score": [
2
],
"text": [
"I'll try? There are a lot though, and I'll probably miss some.\n\nVoltage- Think of there being a \"slope\" between any two points of an electric field. The Voltage is the steepness of that slope\n\nCurrent- The rate that charge flows between two... | [] | [] | [
[]
] | ||
atyjdz | why do some songs sound familiar, despite never having heard them before? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/atyjdz/eli5_why_do_some_songs_sound_familiar_despite/ | {
"a_id": [
"eh4ahbn"
],
"score": [
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],
"text": [
"a lot of song that get attention have similar progressions; and some times are in similar keys. \n\nChord Progressions are what order the sounds are played. for example **I–V–vi–IV** is the most common chord progression. you can check out axis o... | [] | [] | [
[
"https://www.youtube.com/watch?v=oOlDewpCfZQ"
]
] | ||
eat5uw | Are there regions of space with many stars very close together? | Specifically I'm wondering if there are areas with hundreds of star systems within a few lights years of each other. | askscience | https://www.reddit.com/r/askscience/comments/eat5uw/are_there_regions_of_space_with_many_stars_very/ | {
"a_id": [
"fb0mdwv",
"fb0n90u"
],
"score": [
6,
13
],
"text": [
"Darn. See. I'm now to reddit and I don't know how to post an image, or I would make one with a scale bar so you could see how dense globular clusters are. Do a google image search for \"globular cluster.\" Typical scale... | [] | [] | [
[],
[]
] | |
9iz8ei | When you eat something and get hives, what causes the hives to appear everywhere (even your legs)? | [deleted] | askscience | https://www.reddit.com/r/askscience/comments/9iz8ei/when_you_eat_something_and_get_hives_what_causes/ | {
"a_id": [
"e6nvmf4"
],
"score": [
8
],
"text": [
"Urticaria (hives) are an inflammatory reaction in the skin due to the release of (primarily) histamine by a type of cells called mast cells. The histamine causes leakage of capillaries resulting in edema (swelling).\n\nWhen this is from an allerg... | [] | [] | [
[]
] | |
ela0hx | why people curse when they’re angry or frustrated ? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ela0hx/eli5_why_people_curse_when_theyre_angry_or/ | {
"a_id": [
"fdgguti"
],
"score": [
2
],
"text": [
"so humans like many animals are vocal and social creatures, we have emotions and we express them. expressing yourself at times may be difficult. consider three year olds throwing tantrums, they feel many emotions very strongly but they don't know... | [] | [] | [
[]
] | ||
2s4y2n | What IS a gravitational singularity at the center of a black hole? | I'm trying to understand the concepts behind a black hole but the vocabulary is beyond my grasp. Conceptually, I get the gist of an event horizon, [gravitational time dilation](_URL_0_), and [spaghettification](_URL_1_), but what *is* at the center of the black hole (singularity)?
Is it impossibly crushed matter of e... | askscience | http://www.reddit.com/r/askscience/comments/2s4y2n/what_is_a_gravitational_singularity_at_the_center/ | {
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"cnmo9se",
"cnmpjar",
"cnmplli",
"cnmxukm"
],
"score": [
450,
103,
21,
19,
... | [] | [
"http://en.wikipedia.org/wiki/Gravitational_time_dilation",
"http://en.wikipedia.org/wiki/Spaghettification"
] | [
[],
[],
[],
[],
[],
[
"http://ngm.nationalgeographic.com/2014/03/black-holes/img/black-hole-grids-graphic.svg"
],
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Schwarzschild_radius"
],
[],
[],
[],
[],
[]
] | |
a0hgpk | Why wasn't china a more active belligerent in ww2? Considering the "incidents" that started in 1931 between them, Japan and Manchuria... | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/a0hgpk/why_wasnt_china_a_more_active_belligerent_in_ww2/ | {
"a_id": [
"eaiievw",
"eaiovqp"
],
"score": [
3,
9
],
"text": [
"I'm no expert, but my understanding was that China was pretty disorganized and very ill equipped. China wasn't a nation so much as a fractured land ruled by local warlords following the fall of the Qing dynasty and the civil... | [] | [] | [
[],
[]
] | |
3eqlsx | if you had a stick one lightyear long, would the kinetic energy transfer faster than the speed of light if you poked something? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3eqlsx/eli5_if_you_had_a_stick_one_lightyear_long_would/ | {
"a_id": [
"cthgqo8"
],
"score": [
2
],
"text": [
"No. The stick would not move all at once; your push would propagate down the stick at the speed of sound in whatever the stick is made out of. "
]
} | [] | [] | [
[]
] | ||
25hx89 | why do girls and women tend to view more things as "cute" than boys or men? | I speculate that it might be society's norms that's shaping women to be more like this but I really don't know. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/25hx89/eli5why_do_girls_and_women_tend_to_view_more/ | {
"a_id": [
"chhbyoz",
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"chhdrpf",
"chhhaiz",
"chhp3kz"
],
"score": [
5,
4,
2,
2,
2
],
"text": [
"heternormativity. ie: that's how we customarily act according to gender roles.",
"I'm no expert, but I believe that since women were 'built' to nurture a... | [] | [] | [
[],
[],
[],
[
"https://www.youtube.com/watch?v=Z0zConOPZ8Y"
],
[]
] | |
2zhakb | Is the exact location of Carthage known? Are the ruins in the area Phoenician or Roman? | After being corrected on this point in a recent thread, I became curious. I had always heard that Carthage was so utterly destroyed that we can not be sure of its exact location. However a quick google turned up plenty of results for Carthaginian ruins. What's the situation here? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2zhakb/is_the_exact_location_of_carthage_known_are_the/ | {
"a_id": [
"cpixfus"
],
"score": [
26
],
"text": [
"[We totally know where Carthage was](_URL_0_), and [a friend of mine](_URL_1_) wrote her dissertation on the Roman reconstruction under Augustus. The \"salting the earth\" thing was elaboration."
]
} | [] | [] | [
[
"https://www.google.com/maps/d/viewer?oe=UTF8&t=h&ie=UTF8&msa=0&mid=zE6LRdzK6Ss4.kMlgSrYVGU_Q",
"http://havc.ucsc.edu/people/alumni/jessica-ambler"
]
] | |
8eckcu | Were there ever any significant emigrations by Jewish peoples during the colonial period to escape religious persecution? | The most famous story of North American colonialism is obviously the Mayflower Pilgrims, who emigrated to America in order to avoid loss of religious/cultural identity. This seems like a problem which European Jews would likely commiserate with during the period of American colonialism. Were there any Jewish Mayflowe... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8eckcu/were_there_ever_any_significant_emigrations_by/ | {
"a_id": [
"dxueyf5"
],
"score": [
2
],
"text": [
"I think that the best example of this in the colonial period is the Marranos who left Spanish-controlled lands in order to return to Judaism. In 1391 was the first massive wave of coerced conversion of Spanish Jews, and in 1483 the Spanish instit... | [] | [] | [
[]
] | |
3et36s | how do reptile ears work? | I just got a bearded dragon and I was wondering how his ears work, what keeps bugs out of his ears? And does the skin linin the inside of his "ear holes" shed? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3et36s/eli5_how_do_reptile_ears_work/ | {
"a_id": [
"cti43rv"
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"score": [
4
],
"text": [
"Their ears work like yours. There is a very thin and delicate membrane at the base of the ear canal. DO NOT TOUCH it, or you may damage your pet's hearing. The skin lining the exterior ear canal can shed, usually in little flakes. You don't n... | [] | [] | [
[]
] | |
fr4jxy | British museums | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/fr4jxy/british_museums/ | {
"a_id": [
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"text": [
"Apologies, but we have had to remove your submission. We ask that questions in this subreddit be limited to those asking about history, or for historical answers. This is not a judgement of your question, but to receive the answer you are looking... | [] | [] | [
[]
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456eto | why are the planet orbital patterns in a flat ring | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/456eto/eli5why_are_the_planet_orbital_patterns_in_a_flat/ | {
"a_id": [
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"Asked and answered, plenty of times. It comes from everything spinning around it and settling into what are now the planets."
]
} | [] | [] | [
[]
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4qsyju | when you're dehydrated, is it better to chug water fast or to drink it slowly over time, or does it even matter? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4qsyju/eli5_when_youre_dehydrated_is_it_better_to_chug/ | {
"a_id": [
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"I've heard on a survival show that your body can only absorb like 1 liter of water per hour, so I don't think the pace at which you drink it really matters. If you drink more than 1 liter of water in an hour your body will j... | [] | [] | [
[],
[]
] | ||
ara9ox | how does asymmetric encryption work? | Taking A-Level Computer Science, and I'm very comfortable with the majority of concepts that I study.
I've never really understood asymmetric encryption though - outside of my studies, having read about public/private key encryption and SSL, understanding how the communication works at a basic level, the only thing th... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ara9ox/eli5_how_does_asymmetric_encryption_work/ | {
"a_id": [
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"score": [
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"text": [
"The trick is to find problems that are easy to calculate in one direction, but difficult to reverse. Then you base your algorithm on that kind of problem. \n \nFor example, plain multiplication does NOT have that property. Division is pretty... | [] | [] | [
[]
] | |
1ax6mq | Why is the direction of magnetism of current determined with a cross product? | How does the Biot Savart law work? What causes magnetism to work perpendicular to current? | askscience | http://www.reddit.com/r/askscience/comments/1ax6mq/why_is_the_direction_of_magnetism_of_current/ | {
"a_id": [
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"text": [
"A magnetic field is not really a vector, like the electric field, it's really a bivector, pseudo-vector, or 2-form. As a vector has a direction, a 2-form lives in a plane. The thing is, in 3 dimensions, there are exactly as many dimensions (x, y,... | [] | [] | [
[]
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1qp30q | My best friend and I have decided to read the Federalist Papers together. What things should we keep in mind while reading them? | Things such as the cultural context. We know they were being written to to the New Yorkers deciding whether or not to ratify the constitution; but what was the mindset of the average New Yorker given the responsibility of voting? What was the mindset of the authors? Things like that. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1qp30q/my_best_friend_and_i_have_decided_to_read_the/ | {
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"_URL_0_\n\nIf I could suggest it, I'd take a quick backstep before you dive into the Federalist Papers and check out the first two or three chapters of \"Radicalism of the American Revolution\" by Gor... | [] | [] | [
[
"http://books.google.cz/books?id=6lGinKwz7l8C&printsec=frontcover&hl=cs&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false"
],
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"http://shaysrebellion.stcc.edu/shaysapp/person.do?shortName=george_washington",
"http://shaysrebellion.stcc.edu/shaysapp/person.do?shortName=thom... | |
3hev2r | How did Germany heal the relationships with its neighboring countries after World War II? Can we compare what Germany did with what Japan has done (or not done)? | It's the 70th anniversary of World War II, and this question came about when I started thinking about the anti-Japanese sentiment that is deeply embedded into China, Korea, and other East Asian countries, even today. Germany doesn't seem to have this problem (at least not that I know of, and at least not with America),... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3hev2r/how_did_germany_heal_the_relationships_with_its/ | {
"a_id": [
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"text": [
"After checking the rules, I will address Japan as best I can. Full disclosure, I live in Korea and I think the Japanese government's position on this issue is horrible, but I love spending time in Japan.\n\n[This article from Foreign Affairs](_UR... | [] | [] | [
[
"http://www.mofa.go.jp/policy/women/fund/state9308.html",
"http://askakorean.blogspot.com/2015/08/sorting-through-shinzo-abes-dog-whistles.html",
"https://www.foreignaffairs.com/articles/japan/2009-05-01/perils-apology"
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1li0az | If I kill an ant, will his buddies come looking for him? | askscience | http://www.reddit.com/r/askscience/comments/1li0az/if_i_kill_an_ant_will_his_buddies_come_looking/ | {
"a_id": [
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"text": [
"I remember this from [a previous thread](_URL_0_). Here's a fantastic answer from /u/TheSecretMe:\n\nAnts have extremely little direct ant to ant communication aside from checking if ants actually belong to the same colony. (which is more of a o... | [] | [] | [
[
"http://www.reddit.com/r/askscience/comments/zsz1o/if_an_ant_scout_doesnt_return_to_their_nest_do/"
]
] | ||
blmzog | why does nothing ever really happen to huge corporations who massively break the law and cause people to die? like boeing just recently? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/blmzog/eli5_why_does_nothing_ever_really_happen_to_huge/ | {
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"text": [
"Corporations are financially liable. This will cost Boeing a fortune but does not appear to be a criminal issue. If a crime is uncovered, employees or officials can be charged. \n\nBasically this is a civil problem and the forthcoming investigati... | [] | [] | [
[]
] | ||
1juan8 | Why did the general public tie the performing arts (theater, etc.) to prostitution? | Mostly this is within a European context, but I'm also really curious about other parts of the world as well.
I know why ballerinas from France in the 1800s and why giseng in South Korea (as well as geisha in Japan) were connected to and treated like prostitutes, but I'm wondering if and why these connections were ma... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1juan8/why_did_the_general_public_tie_the_performing/ | {
"a_id": [
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"text": [
"/u/merdre gave a detailed answer on 'the stigma of the stage' 3 months ago that I love so much I have it saved, so [here's a link](_URL_0_) to the older discussion. ",
"Dunno about anything but England.\n\nDuring the ear... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/1d7nf2/when_did_actors_go_from_having_the_same_social/"
],
[
"http://en.wikipedia.org/wiki/Philip_Henslowe",
"http://en.wikipedia.org/wiki/Interregnum_%28British_Isles%29",
"http://en.wikipedia.org/wiki/English_Restoration"
]
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6zrqzl | how does a 3 month old baby learn the difference between laugh and a simple shout for the first time? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6zrqzl/eli5_how_does_a_3_month_old_baby_learn_the/ | {
"a_id": [
"dmy10ft"
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"text": [
"They don't, really. Babies smile and laugh instinctively. It takes them a long time to learn what any of it actually means. If someone has a big, booming laugh that they are not used to, they may well startle and cry. Over time (months) they lear... | [] | [] | [
[]
] | ||
1gxagv | base stealing in baseball | How does it work? When can players on base do it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1gxagv/eli5_base_stealing_in_baseball/ | {
"a_id": [
"caot4vc"
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"text": [
"When a player gets on base, say 1st base, he can take a lead of the base. A lead can be a few steps, or a few more than that. It just means he is not physically touching the base with any part of his body. He may do this when the pitcher has the ... | [] | [] | [
[]
] | |
a2jw52 | How would a wealthy European individual or family around 1500 keep their home clean? What sorts of "cleaning products" would they (or rather, their servants) use? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/a2jw52/how_would_a_wealthy_european_individual_or_family/ | {
"a_id": [
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"text": [
"Follow-up: Today there is a taboo around having an unclean home. How would this issue be seen around that time? I'd assume the poor wouldn't have that standard, but would a wealthier individual \"lose face\" over this?",
... | [] | [] | [
[],
[]
] | ||
84ooub | why do large indoor areas use one giant flat fan instead of a couple small fans? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/84ooub/eli5_why_do_large_indoor_areas_use_one_giant_flat/ | {
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"text": [
"You get more bang for your buck when it comes to surface area: usually the single set of large blades can push more air than several smaller ones.\n\nIt also simplifies wiring & installation: when you have several fans you... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Thermal_destratification"
]
] | ||
2890wh | How did cold blooded reptiles survive (out living dinosaurs) during the ice age? | askscience | http://www.reddit.com/r/askscience/comments/2890wh/how_did_cold_blooded_reptiles_survive_out_living/ | {
"a_id": [
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"text": [
"The geologic era, the Mesozoic, in which the dinosaurs were present, contains no evidence for polar caps so there were probably no ice ages analogous to the Pleistocene (most recent glacial epoch). I.e., the Earth was warmer.\n\n_URL_0_ but no re... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Mesozoic",
"http://www.sciencedirect.com/science/article/pii/S0012825299000483"
]
] | ||
3wsk93 | Was the aircraft of ace fighters if WWII optimised for these specific pilots? | Especially in the Luftwaffe.
Were the aircraft such pilots such as Hans Rudel, given superior rear guns in his JU-87 or armour to protect these more important airmen? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3wsk93/was_the_aircraft_of_ace_fighters_if_wwii/ | {
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"text": [
"Speaking for the American air force, the aces flew the same aircraft as any other pilot did. When you add extra armor to a plane beyond... | [] | [] | [
[
"http://imgur.com/FIK3udr",
"http://imgur.com/AkivyIh"
],
[],
[],
[],
[
"http://falkeeins.blogspot.com/2013/09/galland-bf-109-f-2-special.html",
"http://falkeeins.blogspot.co.uk/2012/04/der-reichsmarschall-bei-oberst-galland.html"
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[]
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316r57 | How does time dilation work for an object between two gravitational attractors? | So for example if a space ship is flying between two black holes - in such a way that the black holes' gravitational pulls cancel out - how will their clocks compare to an outside observer's? | askscience | http://www.reddit.com/r/askscience/comments/316r57/how_does_time_dilation_work_for_an_object_between/ | {
"a_id": [
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"text": [
"The first thing to note is that there is only one point where the gravitational pull from the two black holes would be equal, everywhere else the pull from one would be greater than the other. Even if we're at that point, just because there is no... | [] | [] | [
[]
] | |
3qg88r | nihilism | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3qg88r/eli5_nihilism/ | {
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jzw61 | - why does a fulcrum (lever) make something easier to lift? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/jzw61/eli5_why_does_a_fulcrum_lever_make_something/ | {
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"text": [
"A lever is typically supported by a fulcrum. It is one of the six \"Simple Machines of Physics\". Typically, you take a lever and it is put onto the fulcrum.\n\nThink of a seesaw, ... | [] | [] | [
[],
[],
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2qkpdm | what is my "permanent record", and where is it located? | I always hear that something is going on someones permanent record.. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2qkpdm/eli5_what_is_my_permanent_record_and_where_is_it/ | {
"a_id": [
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"text": [
"The most likely meaning here is your education transcript. ( _URL_0_ ) \n\nhowever, this has been a long standing in-joke among educators, intending to scare students with the threat of irrevocable consequences. i.e. \"when... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Transcript_(education)"
],
[]
] | |
zrsmh | Do birds get charged with static electricity while flying? (air friction) | If so, do they get a shock when they land or touch other birds? | askscience | http://www.reddit.com/r/askscience/comments/zrsmh/do_birds_get_charged_with_static_electricity/ | {
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"text": [
"What an interesting thought, I was in the service, worked on aircraft, all of them had static wicks to help discharge static el. The first thing that was done when an aircraft l... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Triboelectric_effect"
],
[]
] | |
1mbpbi | why do cheap restaurants often only have canned soda for sale instead of fountain soda, when the fountain soda has a much higher rate of return? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1mbpbi/eli5_why_do_cheap_restaurants_often_only_have/ | {
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"text": [
"Because they don't have the money/space to install a fountain. Or they don't sell enough pop to want to have to worry about maintaining it/changing syrup bags/cleaning/etc.",
"... | [] | [] | [
[],
[],
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4ojorw | graphene aerogel. if it is 7 times lighter than air, shouldn't it float? | I'm having a hard time grasping the concept. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ojorw/eli5_graphene_aerogel_if_it_is_7_times_lighter/ | {
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"text": [
"If, in total, it's less dense than air, it should float. Sometimes, by lighter than air, they mean that if the aero gel had cells of vacuum instead of cells of air, it would be lighter. But it's filled with air, so in total... | [] | [] | [
[],
[]
] | |
7hk5wi | why does autotune sound so bad in 2017? | It’s 2017. We have smart-everything now. Autotune has sounded the same since 2000s. How come it hasn’t improved since?
Side question; why does autotune sound so bad in the first place? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7hk5wi/eli5_why_does_autotune_sound_so_bad_in_2017/ | {
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"text": [
"Autotune has been used, unbeknownst to the public, long before Cher's Life After Love, which is commonly credited as the first song to employ apparent autotune. Before then, it wa... | [] | [] | [
[],
[],
[],
[]
] | |
6bmx7w | Did the Battle of Thermopylae happen on the same day as the Battle of Artemisium? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6bmx7w/did_the_battle_of_thermopylae_happen_on_the_same/ | {
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"dho2jla"
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"text": [
"According to our best available source - the historical account by Herodotos of Halikarnassos, written some 40 years after the event - this is indeed what happened. The army and fleet were sent to two adjacent bottlenecks and fought to prevent ea... | [] | [] | [
[]
] | ||
8widrx | why during the 60s british bands put out different albums in the uk and us | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8widrx/eli5_why_during_the_60s_british_bands_put_out/ | {
"a_id": [
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"text": [
"At the time British bands would have to sign separate deals with US record labels to get their albums distributed there, and those labels would have had their own ideas as to what songs to put on the albums to best cater to the US market"
]
} | [] | [] | [
[]
] | ||
qjfly | How can a device be more than 100% efficient? | I read this synopsis of an experiment ([link](_URL_0_)) and it says that "Physicists have known for decades that, in principle, a semiconductor device can emit more light power than it consumes electrically." I don't quite understand how a system could produce more energy than it uses, especially more than twice the am... | askscience | http://www.reddit.com/r/askscience/comments/qjfly/how_can_a_device_be_more_than_100_efficient/ | {
"a_id": [
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"text": [
"What they are saying is that some of the energy is coming from heat. The device isn't putting out more than it takes in when all sources of power are combined; it takes a little bit of heat from the environment as well as the electrical energy."
... | [] | [
"http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.108.097403"
] | [
[]
] | |
63nx0n | After Germany's surrender in WW2, did the US send the remaining forces from Europe to go fight in the Pacific or was there too much of a difference compared to fighting Hitler's forces to be effective against the Japanese? | The title may be confusing so I'll try to clear it up. I know there were two seperate fronts basically in WW2. You had the European/African front and then you had the Island/Jungle front. Were soldiers trained differently depending on which enemy force they were going to engage or was it simply adapt as you go. I also ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/63nx0n/after_germanys_surrender_in_ww2_did_the_us_send/ | {
"a_id": [
"dfvup2v"
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"score": [
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"text": [
"Immediately after World War II in Europe ended, U.S. units there were classified into four categories;\n\nCategory|Explanation\n:--|:--\nI|Units to remain in Europe (the occupation forces)\nII|Units to be redeployed to the Pacific for the invasio... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/43kptn/in_band_of_brothers_ww2_american_soldiers_are/"
]
] | |
sgby7 | How much neutron star material would it take to equal the mass of earth? | From _URL_0_ "A neutron star is so dense that one teaspoon (5 milliliters) of its material would have a mass over 5.5×1012 kg, about 900 times the mass of the Great Pyramid of Giza."
This made me wonder how much neutron star material would it take to equal the mass of earth?
Also, if you were able to break off a piec... | askscience | http://www.reddit.com/r/askscience/comments/sgby7/how_much_neutron_star_material_would_it_take_to/ | {
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"text": [
"Taking the density at 4.5×10^17 kg/m^3 (there's a range of possibilities, but that's about average), a neutron star with Earth's mass would have a volume of 13,276,000 m^3 , equiva... | [] | [
"http://en.wikipedia.org/wiki/Neutron_star"
] | [
[],
[],
[
"http://www.wolframalpha.com/input/?i=%28mass+of+the+earth%29+%2F+%28density+of+a+neutron+star%29"
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[
"http://books.google.co.uk/books?id=EeB9ILxkGyQC&pg=PA264&lpg=PA264&dq=minimum+size+for+neutron+star&source=bl&ots=O8NFwp4GiV&sig=Hi-xQM4g_C93ssfE6WbqAKjR_A0&... | |
4pq5bi | How does our brain know what pitch a note is gonna be before we sing/whistle it? | askscience | https://www.reddit.com/r/askscience/comments/4pq5bi/how_does_our_brain_know_what_pitch_a_note_is/ | {
"a_id": [
"d4ncweo"
],
"score": [
6
],
"text": [
"Practice. Firing a certain set of vocal motor neurons produces a certain pitch, which then stimulates certain auditory neurons via our hearing, as well as the integrative neurons that process the sound. Frequent simultaneous stimulation of thos... | [] | [] | [
[]
] | ||
ljd2u | how a photocopier works. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/ljd2u/eli5_how_a_photocopier_works/ | {
"a_id": [
"c2t5qho",
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"score": [
10,
10
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"text": [
"A very bright, intense light is flashed at the original document. This light is then reflected onto a negatively charged metal drum, which through various quantum mechanical effects causes it to lose its charge where the l... | [] | [] | [
[],
[]
] | ||
vj7gy | The modern American "foodie" movement | Even if you aren't a historian, I am interested in pretty much any perspective on this. So if you are older than, say, thirty I would love to hear your comment--just be sure to note what region you are in.
If I go to a normal American grocery store, I can usually find well over a dozen types of beer, wine from every m... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/vj7gy/the_modern_american_foodie_movement/ | {
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"score": [
12,
2,
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127
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"text": [
"A few ideas, but I can't approach the subject entirely. \n\nBeer and Wine: There have always been hundreds of different styles of beer throughout history. Beer typically has al... | [] | [
"http://www.delseoul.com/",
"http://en.wikipedia.org/wiki/Hot_Doug%27s"
] | [
[],
[
"http://www.amazon.com/Down-Earth-Natures-American-History/dp/0195331826",
"http://www.amazon.com/The-Botany-Desire-Plants-Eye-World/dp/0375760393"
],
[],
[]
] | |
393bnp | Were Catholics before the Reformation aware of how corrupt their church was at the time? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/393bnp/were_catholics_before_the_reformation_aware_of/ | {
"a_id": [
"cs0c57r"
],
"score": [
2
],
"text": [
"The everyday Joe? No. \n\nThe Catholic Church before the Reformation was great at keeping its corruption a secret on the higher levels, but the corruption within the lower levels was less well kept.\n\n-In local communities, if you were wealthy e... | [] | [] | [
[]
] | ||
zyx6f | Can habitual nose picking enlarge the nostrils? | askscience | http://www.reddit.com/r/askscience/comments/zyx6f/can_habitual_nose_picking_enlarge_the_nostrils/ | {
"a_id": [
"c68xniy",
"c68xntl",
"c68y3p4"
],
"score": [
23,
93,
8
],
"text": [
"Related: Can habitual nose picking in one nostril but not the other cause a deviated septum?",
"Well, the literature is scarce on this topic. So, as far as I can tell, no.\n\nHowever, of note, the... | [] | [] | [
[],
[
"http://www.ncbi.nlm.nih.gov/pubmed/9403460",
"http://www.ajnr.org/content/18/10/1949.long",
"http://i.imgur.com/b8vfbh.jpg"
],
[]
] | ||
37luhg | why don't we have atomic powered aircraft? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/37luhg/eli5_why_dont_we_have_atomic_powered_aircraft/ | {
"a_id": [
"crnrhvx"
],
"score": [
6
],
"text": [
"We tried. In the Cold War the USA did work on trying to make a nuclear powered bomber. They actually did put a reactor in a plane. \n\nToo many problems, and it irradiated the ground crew. Plus it actually didn't make a very fast plane. "
]
} | [] | [] | [
[]
] | ||
9eee9d | how do hydrogen fuel cells create electricity and regulate how much is made? also how is the hydrogen extracted from water and collected? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9eee9d/eli5_how_do_hydrogen_fuel_cells_create/ | {
"a_id": [
"e5ojkj5"
],
"score": [
3
],
"text": [
"Hydrogen fuel cells are more akin to batteries in practice. They hold energy by having hydrogen and oxygen separated from one another by a membrane. When the particles travel through this membrane to create water they release a bit of energy into... | [] | [] | [
[]
] | ||
a4a2ap | how can we make an educated guess about the time it is when we wake up without seeing a clock? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a4a2ap/eli5_how_can_we_make_an_educated_guess_about_the/ | {
"a_id": [
"ebcncon"
],
"score": [
4
],
"text": [
"Light through the window puts you in the ballpark. But also take into consideration the times you’ve been out by a mile.\nI’m a shift worker but on days for a project and after 2 weeks my body now wakes me up 5-10 minutes before the alarm goes of... | [] | [] | [
[]
] | ||
5ty232 | what the difference is between x264 and x265 video encoding and which is better | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ty232/eli5what_the_difference_is_between_x264_and_x265/ | {
"a_id": [
"dj6yy5t",
"ddpxai3",
"ddpxbj2"
],
"score": [
2,
19,
8
],
"text": [
"As of now H264 is the major player around the world. It is everywhere, mobile streaming, youtube, many online sites utilize it. H265 is the successor to H264. H265 was designed to be efficient at video... | [] | [] | [
[
"https://www.quora.com/What-is-the-difference-between-x265-x264-video-coding-Which-is-advantageous"
],
[],
[]
] | ||
4rwlsk | When people say stars and nebulae are formed by gas and dust, what exactly is the dust? | I understand that the gas is most likely hydrogen or helium because those are very simple structures. However, when someone refers to dust on earth that is usually specks of dirt (minerals like silica) or organic material (skin cells) which are much more complicated structures. So what exactly is this space dust made ... | askscience | https://www.reddit.com/r/askscience/comments/4rwlsk/when_people_say_stars_and_nebulae_are_formed_by/ | {
"a_id": [
"d54rr3e",
"d55459e"
],
"score": [
17,
20
],
"text": [
"Carbon compounds and silicates are still around in space, and they can form *very* complex structures. The environments where they form can allow for very different chemistry than is encountered on Earth, even at high vacu... | [] | [] | [
[],
[]
] | |
66u04l | When nucleons join together to form a nucleus the total mass is greater than their individual masses (the mass defect). How is the additional mass distributed between each of the nucleons? | I understand that when nucleons join energy is converted to mass. But if an elementary proton or neutron has a fixed mass, where is this new, extra mass located? Is it divided up equally? Does it exist between the nucleons like glue? Or does it just hover randomly around the nucleus? | askscience | https://www.reddit.com/r/askscience/comments/66u04l/when_nucleons_join_together_to_form_a_nucleus_the/ | {
"a_id": [
"dglkgk9"
],
"score": [
15
],
"text": [
"The mass of a bound nucleus is **lower** than the sum of the masses of its constituents, because the nuclear binding energy contributes **negatively** to the mass of the system. That's why the nucleus is bound to begin with, because the state wh... | [] | [] | [
[]
] |
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