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 |
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8imcpc | why is it that 8:30-5 or 9-5:30 seem to now be the most common working hours? growing up i was always told 9-5 (thanks dolly). is there a reason for the extra half hour? i work in the u.k. if that helps. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8imcpc/eli5_why_is_it_that_8305_or_9530_seem_to_now_be/ | {
"a_id": [
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"score": [
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"text": [
"Usually it's that you're entitled to a break by law, but they don't have to pay you for your break. So the shift is 8.5 hrs even though you only get paid for 8. Doing it on 8s is usually easier for HR/payroll to deal with",... | [] | [] | [
[],
[]
] | ||
2je5pj | why does your body want to keep changing position at night? | When I'm lying on my right side in bed at night after a while I feel as if the world will end if I dont switch to my left side. Why is this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2je5pj/eli5_why_does_your_body_want_to_keep_changing/ | {
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"score": [
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"text": [
"I too would like to know this, because apparently I'm not the best cuddler after I fall asleep.",
"'Cause the right side of your body has a fricken body lying on top of it, s... | [] | [] | [
[],
[],
[],
[]
] | |
537ht7 | During the tenure of great composers like Mozart, Bach & Beethoven, would it be common to hear their music played outside their country or did music spread slower? | For instance, Bach's Toccata and Fugue in D Minor, would this have been played by organists throughout Europe at the time? Or did the spread of composers' music accelerate at a later date? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/537ht7/during_the_tenure_of_great_composers_like_mozart/ | {
"a_id": [
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"score": [
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"text": [
"Mozart traveled [A LOT, even for the standards of our time](_URL_0_). He also published his music, he was known in many countries.\n\nBeethoven's works were also published in different countries. His 9th symphony was commissioned by the Philharmo... | [] | [] | [
[
"http://www.mozartways.com/content.php?m=2&lang=en&m_id=1290&id=1290",
"http://americanbeethovensociety.org/exhibits/americasbeethoven/newspapers.html"
]
] | |
8l1e3j | Who are the Spanish descended from? | Are modern Spanish descended from Visigoths or the Romans? Or were the majority of the population was there before the Romans? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8l1e3j/who_are_the_spanish_descended_from/ | {
"a_id": [
"dzc2n6q"
],
"score": [
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"text": [
"The Iberian Peninsula was inhabited long before the Romans occupied it, and the PaleoHispanic people's had lived in northern and Western Iberia since the Stone Age (35-40,000 BCE). Modern Spanish are descended from a rich mixture of Roman, Visigo... | [] | [] | [
[]
] | |
2s4ty1 | what is a "thinktank" company? | How do this work? What do they do? How do they get paid? How is it a viable business? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2s4ty1/eli5_what_is_a_thinktank_company/ | {
"a_id": [
"cnm84dl"
],
"score": [
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],
"text": [
"\"Thinktanks\" are in the business of generating solutions to problems - basically, they are like a consultancy, but admittedly the scope and type of problems they work on can be unusually difficult and very specialized. For instance, whereas con... | [] | [] | [
[]
] | |
2uv2rz | In his day was Leopold von Ranke (and his ideas about history being science) as harshly criticised as he is nowerdays by my history department? | Seems strange quite how immediately most of what I hear in lectures is dismissed. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2uv2rz/in_his_day_was_leopold_von_ranke_and_his_ideas/ | {
"a_id": [
"coc4m4s",
"cocmgpx"
],
"score": [
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2
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"text": [
"My knowledge of this is pure historiography, so maybe a historian of the period can elaborate, but the answer is no. Leopold von Ranke is largely credited with creating the discipline of history itself, so for much of his ca... | [] | [] | [
[],
[]
] | |
1kwyhx | how do people get stuck inside of fridges and freezers? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1kwyhx/eli5_how_do_people_get_stuck_inside_of_fridges/ | {
"a_id": [
"cbtga6r"
],
"score": [
2
],
"text": [
"The first refrigerators that were produced for home use had actual latches on the door. This was decades ago. People would throw them out and, apparently, kids would climb in and lock themselves inside. But, for the last 40-50 years, refrigerator... | [] | [] | [
[]
] | ||
dfj0zo | why does most graffiti have the same generic style/look that we have come to expect from vandals | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dfj0zo/eli5_why_does_most_graffiti_have_the_same_generic/ | {
"a_id": [
"f33dy2h",
"f33eack"
],
"score": [
6,
5
],
"text": [
"Speed, if you take too much time spraying it on the walls you will be caught doing it so speed is essential.",
"It's a lettering style designed to take up as much space as possible with color, leaving as little blank spa... | [] | [] | [
[],
[]
] | |
3hhxyx | Is there anywhere that models predict will get nicer to live because of climate change? | Every time I read about the impacts of climate change, it's stories of ecological collapse, droughts, hurricanes, and so on. Is there anywhere that models predict the climate will get more moderate, the land more arable, and with more abundant fresh water?
To put another way, what's the best place to move to minimize ... | askscience | http://www.reddit.com/r/askscience/comments/3hhxyx/is_there_anywhere_that_models_predict_will_get/ | {
"a_id": [
"cu7qhwx",
"cu7raxf"
],
"score": [
20,
3
],
"text": [
"First off, \"nicer to live\" requires individual value judgements because not everyone is the same in what they like. By conventional metrics, most places are going to be losers in climate change but if the mean temperature... | [] | [] | [
[],
[]
] | |
62oki0 | why do android phone manufacturers not force carriers to use the same software like on ios? | For example with Samsung, each carrier has their own version of the software. Would it not be more efficient to make all carriers have the exact same software and just update that like on iOS? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/62oki0/eli5_why_do_android_phone_manufacturers_not_force/ | {
"a_id": [
"dfo52ur"
],
"score": [
3
],
"text": [
"Because the manufacturers have very little power. If Samsung gives the carriers a hard time, they can immediately switch to HTC or another brand that's quite similar.\n\nBy contrast, if Apple gives the carriers a hard time, there is no very simil... | [] | [] | [
[]
] | |
j4y4n | explain how 0.999 recurring = 1 (li5.) | This was explained in class when I was younger. Never got my head around it.
Edit: Well and truly explained. Thanks. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j4y4n/explain_how_0999_recurring_1_li5/ | {
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"score": [
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3,
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"text": [
"Do 1.00000000... minus .99999999...\n\nYou'll get 0.00000000... which is a neverending string of zeroes. You wil... | [] | [] | [
[],
[],
[],
[],
[],
[],
[]
] | |
axcj73 | Why is CBD's action on the 5HT-1A receptor non psychedelic, compared with e.g. LSD's action on the 5HT-2A? | [deleted] | askscience | https://www.reddit.com/r/askscience/comments/axcj73/why_is_cbds_action_on_the_5ht1a_receptor_non/ | {
"a_id": [
"ehvguv7"
],
"score": [
4
],
"text": [
"So to begin, CBD is a partial agonist which is not the same as LSD, which is a full agonist. Partial agonism is jargon in that the drug binds quite well, but only exerts say 40% of an effect compared to a full agonist, which would give 100% of ef... | [] | [] | [
[]
] | |
1jhgju | why do some tennis players grunt loudly whenever they hit the ball? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1jhgju/eli5_why_do_some_tennis_players_grunt_loudly/ | {
"a_id": [
"cbepa7h"
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"score": [
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"text": [
"Tensing the torso allows maximum rigidity and power transfer to the strike. This tends to push air out of the lungs and produce a grunt, and grunting can be a way to focus on maintaining that form."
]
} | [] | [] | [
[]
] | ||
2eecq9 | Could chemoautotrophic bacteria live in the hostile environments of another planet? | Not entirely sure if this is the place to ask this question, but I was recently watching [this video](_URL_0_) on Vimeo, and got curious.
Bacteria have been known to thrive in some of the most hostile places on earth. Places where we don't think life could possibly exist because of lack of oxygen, light, and other thi... | askscience | http://www.reddit.com/r/askscience/comments/2eecq9/could_chemoautotrophic_bacteria_live_in_the/ | {
"a_id": [
"cjz0lrx"
],
"score": [
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],
"text": [
"The discovery of extremophile organisms like bacteria has certainly broadened our understanding of life, and the sheer strangeness and lengths it can go and survive.\n\nSo, the answer is yes. There definitely *could* be organisms on other planets... | [] | [
"http://vimeo.com/channels/staffpicks/103389185"
] | [
[]
] | |
supox | Shimmering on roads. | When I drive on paved roads, occasionally there is this shimmering effect, like the road is made of some sort of liquid. It generally only happens when I'm changing elevation. What is this phenomenon? | askscience | http://www.reddit.com/r/askscience/comments/supox/shimmering_on_roads/ | {
"a_id": [
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],
"score": [
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],
"text": [
"It is caused by the refraction of light when traveling through a density gradient in the air. The air near the surface is being heated by the hot pavement, and therefore expands reducing the pressure, resulting in less density. Light coming in fr... | [] | [] | [
[
"http://i.imgur.com/Giv0T.png"
]
] | |
1e01r2 | As Historians, how can we utilize novels and literature as research? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1e01r2/as_historians_how_can_we_utilize_novels_and/ | {
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"text": [
"Well, certainly you can use period literature to provide evidence for a lot of things -- social norms, changing attitudes, the values and morals of the time, as well as a great source of linguistic data... | [] | [] | [
[],
[],
[]
] | ||
2um650 | Why not make smaller turbojet engines instead of a larger turbofan with high bypass ratio? | I'm curious about this after some casual browsing on wikipedia about jet engines.
Wouldn't a high bypass ratio be inefficient in terms of both physical size and compression efficiency from the turbine? Why waste fan energy by bypassing it around the engine?
| askscience | http://www.reddit.com/r/askscience/comments/2um650/why_not_make_smaller_turbojet_engines_instead_of/ | {
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"text": [
"Turbojets are designed to create thrust by turning thermal energy into thrust directly, in the form of a high velocity exhaust stream. As long as the exhaust is moving faster than the speed of the vehicle, it will generate ... | [] | [] | [
[],
[]
] | |
3q49zn | Was Aristotle ever right? | Just curious, somewhere I heard the assertion that "Nothing Aristotle ever said was correct". Ever since then, I haven't found a single example of a correct statement by Aristotle. Maybe I just suck at searching though.
(And naturally, I'm just talking about hard science facts, I'm not considering theology/philosophy... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3q49zn/was_aristotle_ever_right/ | {
"a_id": [
"cwccaeh"
],
"score": [
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"text": [
" > I'm just talking about hard science facts\n\nThis only works if you believe science is an accumulation of facts. Instead, it might be useful to think of science as a project to model nature ([see Thomas Kuhn](_URL_0_)). For instance, Newtonian... | [] | [] | [
[
"https://books.google.com/books?id=3eP5Y_OOuzwC&printsec=frontcover"
]
] | |
19ma6e | what is the point of rooting android products and jailbreaking apple products. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/19ma6e/eli5_what_is_the_point_of_rooting_android/ | {
"a_id": [
"c8pb6n1"
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"score": [
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],
"text": [
"Rooting on Android gives you administer access to the device, letting you install custom software, overclock the hardware, delete built in apps, and allow apps to have functionality they otherwise would be denied.\n\nJailbreaking on iOS installs ... | [] | [] | [
[]
] | ||
1se26q | Did Shakespeare and His Plays Cause Any Naming Trends? | Given many Americans name their children after stuff they see in the media (celebrity babies, Game of Thrones characters), did Shakespeare's popular plays trigger any naming trends after characters? I.e. were there booms of little Hamlets (other than his kid) and little Mirandas due to the Bard? I guess this could be a... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1se26q/did_shakespeare_and_his_plays_cause_any_naming/ | {
"a_id": [
"cdww09t"
],
"score": [
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"text": [
"Probably the most influential names invented by Shakespeare were (and are) Jessica and Olivia. The following is from *The Merchant of Venice* (Arden Shakespeare, 3rd Series) Act 2, Scene 4, Lines 19-20:\n\n > LORENZO:\n\n > Hold here--take this... | [] | [] | [
[
"http://books.google.com/books/about/Names_and_Naming_Patterns_in_England_153.html?id=UoFY4ahN0u8C"
]
] | |
14dge2 | What does the spin on a bullet do for the pressure wave it creates? Does it change its nature much compared to as if it was not spinning and simply translating? | askscience | http://www.reddit.com/r/askscience/comments/14dge2/what_does_the_spin_on_a_bullet_do_for_the/ | {
"a_id": [
"c7c6gjl"
],
"score": [
2
],
"text": [
"I'm not sure if this is what you're looking for, but [here is an image](_URL_0_) of a gun being fired underwater. You can see the cavitation caused by the bullet is twisted because of the bullet's spin. A similar thing should happen in air."
]
... | [] | [] | [
[
"http://also.kottke.org/misc/images/firing%20a%20gun%20under%20water.jpg"
]
] | ||
5nhwtc | how are we able to sense where our body parts are in space without actually looking at or feeling them? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5nhwtc/eli5_how_are_we_able_to_sense_where_our_body/ | {
"a_id": [
"dcbna8q"
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"score": [
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"text": [
"That's called proprioception, or kinesthetic awareness. It's also somewhat tied into reflexes, like catching or dodging a ball. You can increase the sensitivity with practice, too. Sadly, though, the “spider sense” is just for comics and movies f... | [] | [] | [
[]
] | ||
68sv33 | is there any situation in which the mathematical median can be higher than the mean? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/68sv33/eli5_is_there_any_situation_in_which_the/ | {
"a_id": [
"dh0z9g2"
],
"score": [
4
],
"text": [
"The relationship between the mean and median are based on how skewed the data is, and in what direction the skew is. Generally speaking, things that we are familiar with tend to be skewed right, so we get that the mean is greater than the median.... | [] | [] | [
[]
] | ||
28s3il | can someone explain whether obesity is only present in humans or other mammals too have this disorder within their species? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/28s3il/eli5_can_someone_explain_whether_obesity_is_only/ | {
"a_id": [
"cidwj9e",
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"score": [
3,
3
],
"text": [
"I've seen some fat ass cats and dogs. ",
"Other animals can get fat, too. Pets often become obese; lab animals can gain too much weight if their diets aren't carefully adjusted. Among wild animals, morbid obesity isn't p... | [] | [] | [
[],
[]
] | ||
2dt6u1 | do/can animals in nature outside of human contact get fat or even mordidly obese? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2dt6u1/eli5_docan_animals_in_nature_outside_of_human/ | {
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"cjt5eh3",
"cjt5ouc",
"cjt6862",
"cjt8mtg",
"cjt8ytk",
"cjtafql",
"c... | [] | [] | [
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"http://youtu.be/yltlJEdSAHw"
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"http://37.media.tumblr.com/tumblr_lowjxcz0cb1qzt6iio1_500.jpg"
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1vt1bg | why do i keep getting acne when i have showered every day for 4 years and have a healthy diet/work out? im a 18 year old male | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1vt1bg/eli5_why_do_i_keep_getting_acne_when_i_have/ | {
"a_id": [
"cevioz5"
],
"score": [
2
],
"text": [
"Not a doctor here, but maybe you should see a dermatologist if you haven't already (not that this is strange, but they can really help).\n\nA lot of acne in adolescence is caused by androgens being released in the body, such as testosterone (this... | [] | [] | [
[]
] | ||
2o5t9x | what exactly the 10nm, 14nm, 22nm, etc nodes mean in semiconductor processing | I am having trouble understanding what those nodes represent. At first I thought they wetr the size of transistors but more research shows it has something to do with photolithography. Can someone explain it please? Thanks | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2o5t9x/eli5_what_exactly_the_10nm_14nm_22nm_etc_nodes/ | {
"a_id": [
"cmjyx5n"
],
"score": [
4
],
"text": [
"Well, it's a bit confusing even to people in the industry. The devil's in the details. \n \nIn the distant past, the geometry of the \"node\" meant the size of the smallest transistors. But a while back it started to refer more to the pitch of ... | [] | [] | [
[]
] | |
90enba | Nixon courted southern Democrats with the Southern Strategy. Prior to that, what common cause did these people have with northeastern elites like FDR and Kennedy? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/90enba/nixon_courted_southern_democrats_with_the/ | {
"a_id": [
"e2r8a89"
],
"score": [
4
],
"text": [
"Roosevelt's biggest contribution to American politics was the establishment of the New Deal Coalition. Roosevelt united the traditional Democratic base (conservative Southerners, northern immigrants and Catholics, liberal northerners) along with ... | [] | [] | [
[]
] | ||
9d3dzo | When a sufficiently sized star dies and collapses into a black hole, does the gravitational attraction that it yields change? | askscience | https://www.reddit.com/r/askscience/comments/9d3dzo/when_a_sufficiently_sized_star_dies_and_collapses/ | {
"a_id": [
"e5faj2r",
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"score": [
24,
3
],
"text": [
"Either \"no\" or \"it might go down\" depending on what you mean.\n\nAt large distances, old fashioned classical gravity is accurate for both. The force of gravity is proportional to the mass. So if all the mass is retained... | [] | [] | [
[],
[]
] | ||
15o2rq | Was Gandhi actually a positive influence on the development of India as a country? | It seems to me that Britain Relinquished control over many of her colonies voluntarily post WWII (Mostly due to economics and it's own internal de-colonization movement).
So did Gandhi actually do much to help India's independence movement and did his legacy(which turned out to be rampant corruption, cronyism and eco... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/15o2rq/was_gandhi_actually_a_positive_influence_on_the/ | {
"a_id": [
"c7o7htd",
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"score": [
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3
],
"text": [
"This is one of the most hotly debated issues that I've ever encountered. A lot of people blame Ghandi for effectively bringing back the caste system. Honestly I'm not well read enough on the subject to go into much on the ... | [] | [] | [
[],
[
"http://www.bbc.co.uk/programmes/b00n7sf1"
]
] | |
mizm8 | what generates the messages in computer errors? | Not being great at computers myself, I've always wondered where some of the strange error messages come from. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/mizm8/eli5_what_generates_the_messages_in_computer/ | {
"a_id": [
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"score": [
2,
3,
6,
2,
3,
6
],
"text": [
"I'm not sure what you mean by this. Each individual program has the ability to throw an error message. The operating system can throw ... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
48yb5a | how did scientists first hypothesise that an meteor killed the dinosaurs? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/48yb5a/eli5_how_did_scientists_first_hypothesise_that_an/ | {
"a_id": [
"d0nk510",
"d0o32u3",
"d0odppp"
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"score": [
69,
2,
4
],
"text": [
"It was proposed by [Luis Walter Alvarez](_URL_0_) after he noticed a thin layer of clay in the geologic record between the Cretaceous and Tertiary (now called the Paleogene) periods. After further inve... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Luis_Walter_Alvarez#Dinosaur_extinction"
],
[],
[
"https://simple.wikipedia.org/wiki/K/T_extinction_event"
]
] | ||
2yowba | what is going on in your brain when you stare? why are you so focused on one thing you can't look away? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2yowba/eli5_what_is_going_on_in_your_brain_when_you/ | {
"a_id": [
"cpbkd1s"
],
"score": [
3
],
"text": [
"I am not a psychologist, but generally it is because you are seeing something your brain considers valuable or possibly dangerous. If a man stares at a woman with large breasts, then it is because his brain considers it something valuable and wa... | [] | [] | [
[]
] | ||
3dgjiy | Who made the bombs for the IRA? | Was it just one man? Or numerous men? I'm also curious as to how they got bombs into mainland England. And one last thing why were the South Armagh brigade so hard to deal with for the British army, I heard a lot about them and how British army forces wouldn't even enter certain villages. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3dgjiy/who_made_the_bombs_for_the_ira/ | {
"a_id": [
"ct56srl"
],
"score": [
10
],
"text": [
"Early on the bombs were mostly homemade using Ammonium Nitrate fertiliser. While the process is simple it does take skill to get it right and there were several people who specialised in it. The explosives were often made in ordinary houses or s... | [] | [] | [
[]
] | |
s8w2p | What can you tell me about pirates? | So i read that post a while ago about the pirate code and it got me into this subreddit. I was wondering if anyone had other cool facts about pirates or other naval combatants of the time because lets face it those guys were cool. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/s8w2p/what_can_you_tell_me_about_pirates/ | {
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"score": [
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"text": [
"Apparently they helped [prevent global warming](_URL_0_). That's a cool fact.",
"Pierre Le Grand (_URL_0_ Legendary Pirate who captured a Spanish treasure galleon with 28 men ... | [] | [] | [
[
"http://upload.wikimedia.org/wikipedia/commons/d/de/PiratesVsTemp%28en%29.svg"
],
[
"http://en.wikipedia.org/wiki/Pierre_le_Grand_(pirate)",
"http://en.wikipedia.org/wiki/Gr%C3%A1inne_O%27Malley",
"http://en.wikipedia.org/wiki/Raid_on_Cartagena_(1697)",
"http://en.wikipedia.org/wiki/Bartho... | |
5lb3ld | why do humans need to be taught about sex while other animals just know what to do? | So a rabbit reaches sexual maturity, he knows exactly what to do. However, if a human reached sexual maturity and has never been exposed to anything of a sexual nature, he would have no idea what to do with another human being. To be clear, the question is not why humans aren't naturally good at sex, but why humans wou... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5lb3ld/eli5_why_do_humans_need_to_be_taught_about_sex/ | {
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"text": [
"This is a very vague and not conclusive answer, but: Humans instinctively know more about sex than you think, and animals instinctiv... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
3b4qln | Why don't salamanders bleed to death when they lose limbs? | It seems to me like a human who lost a limb would bleed to death without medical care long before the whole regenerating or scarring thing became relevant. Why isn't that a problem for salamanders and other animals capable of regenerating limbs? | askscience | http://www.reddit.com/r/askscience/comments/3b4qln/why_dont_salamanders_bleed_to_death_when_they/ | {
"a_id": [
"csjhyr7"
],
"score": [
2
],
"text": [
"If you chop off a person's limb they don't just fountain blood out of the open wound. At least not initially. The blood vessels constrict during trauma which buys valuable time for treatment. For salamanders I think the process is similar only th... | [] | [] | [
[]
] | |
12nizu | When energy is converted into heat and then dissipates, how is energy conserved? | askscience | http://www.reddit.com/r/askscience/comments/12nizu/when_energy_is_converted_into_heat_and_then/ | {
"a_id": [
"c6wlb7g"
],
"score": [
4
],
"text": [
"When heat dissipates, it doesn't disappear; it just spreads out."
]
} | [] | [] | [
[]
] | ||
4ccfgg | what is ethereum, and how does it have a monetary value? | I understand basically that it's a cryptocurrency, but what exactly is my GPU doing that is worth actual value to someone? I used to do Folding@Home, but that was more research purposes than anything else. How is this different? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ccfgg/eli5_what_is_ethereum_and_how_does_it_have_a/ | {
"a_id": [
"d1gz9lr"
],
"score": [
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],
"text": [
"I can't speak about Ethereum specifically, but I can give you a generalized explanation of bitcoin and hope the information is useful to you. The processing power used to generate a new coin is not *useful* or *practical* to someone in the same w... | [] | [] | [
[]
] | |
92mh31 | How far is it between solar systems in a galaxy? What is there in this space between solar systems and planets? | I read something about a probe leaving our solar system. That made me think about this. Is there just "empty" space between solar systems, only dark matter and dark energy etc? | askscience | https://www.reddit.com/r/askscience/comments/92mh31/how_far_is_it_between_solar_systems_in_a_galaxy/ | {
"a_id": [
"e38uelj",
"e39opfu"
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"score": [
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4
],
"text": [
"In the disc of the Milky Way (ie where we are) the average seperation between two stars is about a parsec, although this will vary drastically depending on the region (ie the stellar density near the galactic centre will be ... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Spinning_dust",
"https://en.wikipedia.org/wiki/Interstellar_medium",
"https://en.wikipedia.org/wiki/Voyager_1",
"https://www.nature.com/news/the-hunt-for-rogue-planets-just-got-tougher-1.21445",
"https://en.wikipedia.org/wiki/Kuiper_belt",
"https://en.w... | |
5gwy15 | Would Genghis Khan be considered a "bad guy" of history? | He started what would become the largest civilization that the world ever had. Of course this civilization had to come through war, lots of deaths, and warmongering. Even with the obvious bad, he managed to control this vast of an empire, preserve some cultures, etc. So, do historians view him as a disgusting person? M... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5gwy15/would_genghis_khan_be_considered_a_bad_guy_of/ | {
"a_id": [
"dawl2rt"
],
"score": [
3
],
"text": [
"Potentially better follow up: Do historians actually view anyone as villains? I had got the impression that the more general sociocultural factors were being considered instead of individuals in good historical work. "
]
} | [] | [] | [
[]
] | |
cczzqn | Why does a small amount of antenna extension in devices such as portable radios and satellite cellphones make such a big impact on quality of reception? | askscience | https://www.reddit.com/r/askscience/comments/cczzqn/why_does_a_small_amount_of_antenna_extension_in/ | {
"a_id": [
"etrge9r",
"etsukxz"
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"score": [
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2
],
"text": [
"Old ‘brick’ cell phones used a frequency around 800mhz. The wavelength, ~14 inches, would make a full wave antenna cumbersome. However, a half wave length antenna (that is normally stowed inside the phone) does work pretty w... | [] | [] | [
[],
[]
] | ||
2brt23 | What can you tell me about this Roman stone my neighbours dug up? | It was found in Montenegro, Europe, near the archaeological site of "Municipium S". From what I can read it says "SILVAN AVC SACR" but the V and A in the first word are connected. Any clues about its meaning or significance would be appreciated.
Pic #1 (_URL_1_)
Pic #2 (_URL_0_) | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2brt23/what_can_you_tell_me_about_this_roman_stone_my/ | {
"a_id": [
"cj89yd9"
],
"score": [
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],
"text": [
"\"AVG SACR\" is short for \"AUGusto SACRum\"; \"SILVANO\" was a woodland deity. Basically it's dedicated/sacred to Silvanus and Augustus.\n\nSource: Silvanus in Salona p161 _URL_0_"
]
} | [] | [
"http://imgur.com/CtWLkmH,F4Cp7Nz#1",
"http://imgur.com/CtWLkmH,F4Cp7Nz#0"
] | [
[
"http://www.scribd.com/doc/151878038/Silvan-u-Saloni-S-Bekavac"
]
] | |
32dj02 | If visible light and radio waves are all forms of electromagnetic waves, can we emit visible light by emitting radio at a different wave length? | askscience | http://www.reddit.com/r/askscience/comments/32dj02/if_visible_light_and_radio_waves_are_all_forms_of/ | {
"a_id": [
"cqa9h5r",
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"score": [
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5
],
"text": [
"No. The definitions of visible light and radio waves depend on their wavelengths. Visible light have a wavelength typically in the 100s of nanometer range, radio waves typically defined as larger than about a millimeter or s... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Doppler_effect",
"http://en.wikipedia.org/wiki/Relativistic_Doppler_effect"
],
[]
] | ||
18r17t | Why do you get shocked when you lick a 9 volt but not when you lay your finger across both leads? | askscience | http://www.reddit.com/r/askscience/comments/18r17t/why_do_you_get_shocked_when_you_lick_a_9_volt_but/ | {
"a_id": [
"c8hb7mv"
],
"score": [
3
],
"text": [
"Different resistance values between your tongue and your fingers. Electrons can travel easily through your wet tongue from negative to positive but your fingers have a higher resistance hindering the passage of electrons."
]
} | [] | [] | [
[]
] | ||
6ptsku | How is the Dead Sea the lowest point on Earth ( 400m) if the Grand Canyon has a depth of 1800m? | askscience | https://www.reddit.com/r/askscience/comments/6ptsku/how_is_the_dead_sea_the_lowest_point_on_earth/ | {
"a_id": [
"dksibd9"
],
"score": [
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],
"text": [
"You are comparing depth with altitude - they are not the same thing.\n\nThe Dead sea is the lowest point on Earth at an altitude of -400 m **relative to sea-level**.\n\nThe maximum depth of the Grand Canyon is measured from the surface, in the m... | [] | [] | [
[]
] | ||
8z4fs1 | Does split brain lead to split consciousness? | Perhaps I’m not completely certain what consciousness is meant by in this study, but I don’t understand how consciousness can be shared if the left and right hemispheres are unable to communicate. Could someone help me understand if this is absolutely the case of if it’s still up for debate, and if it is the case, how ... | askscience | https://www.reddit.com/r/askscience/comments/8z4fs1/does_split_brain_lead_to_split_consciousness/ | {
"a_id": [
"e2g4qn1",
"e2hep6c"
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"score": [
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2
],
"text": [
"A “split brain” is not really 100% split: we use the term to describe patients who, for one reason or another (usually surgery), have lost the functionality of the Corpus Callosum. The Corpus Callisum is a dense bundle of ne... | [] | [
"http://www.uva.nl/en/content/news/press-releases/2017/01/split-brain-does-not-lead-to-split-consciousness.html"
] | [
[],
[
"https://www.youtube.com/watch?v=wfYbgdo8e-8"
]
] | |
20fgk6 | What was the scientific and cultural legacy of Achaemenid Persia? | We seem to know a lot about Greek contributions to philosophy, art and science but with the vast Persian empire existing concurrently, is there any mark they similarly left upon our culture? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/20fgk6/what_was_the_scientific_and_cultural_legacy_of/ | {
"a_id": [
"cg2puv8"
],
"score": [
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"text": [
" > First, I am going to assume that \"our culture\" refers to western culture. But this is a dangerous assumption to make, so please be sure to avoid such generalizations in the future. This is an important distinction to make because the recepti... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/1yx5ie/what_was_the_scientific_and_cultural_legacy_of/cg2n6c9"
]
] | |
15rmxd | Different Base Numbers? | I hope i don't offend anyone for asking this here but I would like a more intelligent answer then r/askreddit might otherwise give.
So lets pretend I was writing a sci-fi novel about an alien race who used a different base number besides 10. Perhaps 6, 8, or 12. How could you go about this? And how could you maybe sa... | askscience | http://www.reddit.com/r/askscience/comments/15rmxd/different_base_numbers/ | {
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"score": [
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2,
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"text": [
"It's really not that hard to go about using other base systems, it just means that you go to the next place value at whatever your base is. For example, in hexadecimal, or base-16, you count up to 15 t... | [] | [] | [
[],
[
"https://www.youtube.com/watch?v=U6xJfP7-HCc"
],
[
"http://en.wikipedia.org/wiki/Balanced_ternary"
]
] | |
729yma | - what makes peanut butter stick to the roof of your mouth, and throat? | I’ve always wondered why I got that split second feeling like I was gonna choke on a peanut butter sand which, but don’t get that feeling with Other foods . | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/729yma/eli5_what_makes_peanut_butter_stick_to_the_roof/ | {
"a_id": [
"dniealk"
],
"score": [
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"text": [
"Peanutbutter is viscous. The viscosity of peanutbutter means that it will take longer to flow than other fluids. Aside from that, peanutbutter is not only viscous, but is able to squish between nooks and crannies in a surface, allowing it to act ... | [] | [] | [
[]
] | |
h8etm | Is there any evidence that "sugar rushes" actually occur? | askscience | http://www.reddit.com/r/askscience/comments/h8etm/is_there_any_evidence_that_sugar_rushes_actually/ | {
"a_id": [
"c1tedj7",
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"score": [
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2,
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],
"text": [
"There is some evidence that food dyes can cause hyperactivity in children which you can read about [here](_URL_0_).",
"Why are sugar... | [] | [] | [
[
"http://www.cspinet.org/fooddyes/"
],
[],
[],
[],
[],
[]
] | ||
3ojels | does location determine skin color? | My camp counselor said that dark skinned people are dark skinned because they settled in hotter places (e.g Africa). However I disagreed because a white person in South Africa over generations and generations will never have black offspring. Vice versa. Who is right in this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3ojels/eli5does_location_determine_skin_color/ | {
"a_id": [
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"score": [
5,
2,
2
],
"text": [
"Dark skin protects against ultraviolet radiation from the sun. But solar radiation is also necessary to stimulate production of vitamin D. In the higher latitudes, where there is less solar radiation, t... | [] | [] | [
[],
[],
[]
] | |
16hlln | What drives the molecular change in catalytic enzymes? | The example I'm specifically thinking of is the F1 domain of the ATPase, which creates ATP from the proton motive force. The translocation of protons causes rotation of the the F1 domain subunits. Which drives a conformational change between tight, loose, and open binding conformations and these have different affiniti... | askscience | http://www.reddit.com/r/askscience/comments/16hlln/what_drives_the_molecular_change_in_catalytic/ | {
"a_id": [
"c7w4r3w"
],
"score": [
3
],
"text": [
" > tight conformation the ADP & Pi \n\nThat's pretty much the idea. The ADP and Pi are pushed so close together (in just the right conformation) that they can't help but react. "
]
} | [] | [] | [
[]
] | |
t709s | Watching Cosmos...questions about light...brain hurts! | Longtime Carl Sagan fan, but I've somehow avoided watching Cosmos. Awesome, awesome series, but I have all these questions about light now and I'm really hoping you guys and gals can help me out. Forgive me if these questions are ridiculous. I'm assuming that I'm missing some pretty basic concept here and I'm not reall... | askscience | http://www.reddit.com/r/askscience/comments/t709s/watching_cosmosquestions_about_lightbrain_hurts/ | {
"a_id": [
"c4k2rih"
],
"score": [
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],
"text": [
"1) All light moves at the same speed in space. Period. The redshift is the change of *wavelength* of light. In the electromagnetic spectrum, light has different frequencies/wavelengths, but not speeds. Maybe someone can elaborate.\n\n2) [Inverse... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Inverse-square_law"
]
] | |
289lv3 | If you flash freeze water, will it still expand in the same way as 'normal', gradual freezing? | One of the main issues for cryogenic freezing is that the water is the blood expands. The blood vessels housed in the haversian and volkman canals in turn expand and cause microfractures throughout the osteons.
It is often quoted that flash freezing is a way to overcome this, but is that entirely true?
Would it not ... | askscience | http://www.reddit.com/r/askscience/comments/289lv3/if_you_flash_freeze_water_will_it_still_expand_in/ | {
"a_id": [
"ci8wrpi"
],
"score": [
2
],
"text": [
"Water will expand regardless of how it is frozen; however, what changes is the size of the average ice crystal. When you slow freeze water it tends to build one giant crystal over time since water can slowly collect and arrange itself to form ... | [] | [] | [
[]
] | |
2selxp | why is it better to eat actual sources of protein (eggs, fish, meat etc.) than consume protein powder? | what are the negative side effects of consuming protein powder | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2selxp/eli5_why_is_it_better_to_eat_actual_sources_of/ | {
"a_id": [
"cnosxwz"
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"score": [
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"text": [
"It isn't the protein itself that is bad. It is the other stuff that comes with it. You aren't consuming pure protein when using that powder, and a lot of that is things like instant milk which contains oxidized cholesterol, which is very very v... | [] | [] | [
[]
] | |
36m2kz | how long does it take to be a professor? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/36m2kz/eli5_how_long_does_it_take_to_be_a_professor/ | {
"a_id": [
"crf3zva",
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"score": [
3,
2
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"text": [
"Depends largely on the school, faculty, and discipline.\n\nThe typical route is:\n\n- Undergraduate (bachelor's).\n\n- Postgrad (Master's).\n\n- PhD.\n\n- Lecturing and getting published.\n\n- Getting tenure.\n\n- Associate... | [] | [] | [
[],
[]
] | ||
297rkb | when a mosquito is sucking blood from my arm, where does its proboscis go after i kill it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/297rkb/eli5_when_a_mosquito_is_sucking_blood_from_my_arm/ | {
"a_id": [
"ciic70k"
],
"score": [
2
],
"text": [
"you probably pull it out when you brush the body away. otherwise it's still in there. not a big deal, though. the things are as thin as hair and your body has ways of dealing with stuff like that. "
]
} | [] | [] | [
[]
] | ||
1fk7rh | Why do nuclear armed countries need such massive investment in conventional military? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1fk7rh/why_do_nuclear_armed_countries_need_such_massive/ | {
"a_id": [
"cab416d",
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"score": [
6,
3
],
"text": [
"I dabbled in nuclear strategy, tactics, and the general science of nuclear warfare a few years back, so let me try to answer.\n\nI'm going to assume based on your comments and questions that you're exclusively asking about t... | [] | [] | [
[],
[]
] | ||
21smmf | Chicago Footnote Help | Hi,
I'm doing homework for my master's and I'm running into problems with my footnotes, how do I include multiple sources such as a letter quoted in an encyclopedia, or government documents included in a collection of government documents, or an essay quoting a letter inside an encyclopedia? I've never had to do more ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/21smmf/chicago_footnote_help/ | {
"a_id": [
"cgg5fbd"
],
"score": [
4
],
"text": [
"Yikes, those are the tricky ones.\n\nOkay gov't documents, you sort of cite it like any other books, but you usually include the volumes. Let's look at the gov't docs I used for my own research from the Pennsylvania Archives\n\nPennsylvanian, Com... | [] | [] | [
[
"http://library.menloschool.org/content.php?pid=262726&sid=2298716"
]
] | |
p1u97 | the drug enforcement administration (dea) | How exactly does this agency work and whats the controversy behind the DEA's policy of raiding of medical marijuana dispensaries? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/p1u97/eli5_the_drug_enforcement_administration_dea/ | {
"a_id": [
"c3ltbpo"
],
"score": [
2
],
"text": [
"The DEA is a federal law enforcement agency under the Department of Justice tasked with enforcing federal laws (primarily the Controlled Substances Act) on the use, manufacture, and smuggling of drugs in the United States. In some ways like the F... | [] | [] | [
[]
] | |
b9dx6q | How did Taffy 3 actually pull off the defense of the Lette landing force in WWII? | I know there was outstanding bravery shown by the USS Johnson's, USS Samuel B. Roberts', and many other ship's captains and crews had an effect, but did admiral Korita retreat truly because he believed he was outmatched? Did he ever give a reason for retreating? Since he could see the force he was facing, I don't kn... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/b9dx6q/how_did_taffy_3_actually_pull_off_the_defense_of/ | {
"a_id": [
"ek7klod"
],
"score": [
3
],
"text": [
"Expanded from [an earlier answer of mine](_URL_3_)\n\nThe actions of Kurita at Samar are still somewhat controversial among naval historians. Kurita in theory should have acted with daring given that the *Sho* plan called for a fight to the death... | [] | [] | [
[
"https://www.ibiblio.org/hyperwar/AAF/USSBS/IJO/IJO-9.html",
"https://www.ibiblio.org/hyperwar/AAF/USSBS/IJO/IJO-75.html",
"http://ibiblio.org/hyperwar/AAF/USSBS/IJO/IJO-41.html",
"https://www.reddit.com/r/AskHistorians/comments/4mxjpi/what_was_the_japanese_reaction_to_the_defeat_at/"
]
] | |
3pif4o | What lies behind the military success of the Ottoman Empire in the period from the 1400s to the 1600s, and would they have fared equally well against western European powers? | Were the Christian realms in southeastern Europe easy prey for some reason or another? Was there something revolutionary about the Ottoman military? Please shed light on all possible explanations you are able to comment on! | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3pif4o/what_lies_behind_the_military_success_of_the/ | {
"a_id": [
"cw6jgmb"
],
"score": [
3
],
"text": [
"A search brought up [this](_URL_0_) post, which mentions the importance of gunpowder and speaks of \"superiority of Ottoman weaponry\". Could someone elaborate on that? How advanced were the Ottomans in the field of weaponry, how big of a role di... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/33esbq/how_did_the_ottoman_empire_become_from_the_most/cqkc21y"
]
] | |
31luty | How did tyrannosaurus drink water? | I tried to Google the answer, but apparently the internet cannot take this question seriously. I am curious because apparently t-rex couldn't lean that far down due to a poor center of gravity, so how did this giant beast get liquid nourishment? One guess I had was that they lay on their sides like when they sleep, but... | askscience | http://www.reddit.com/r/askscience/comments/31luty/how_did_tyrannosaurus_drink_water/ | {
"a_id": [
"cq2xhbe",
"cq2yamn"
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"score": [
48,
5
],
"text": [
"T. rex probably drank like most birds, by bending down and taking a mouthful of water, then tilting its head back to allow the water to run down its throat. Tyrannosaurus also has a ling and heavy tail that can be used as c... | [] | [] | [
[],
[]
] | |
gzkn9 | Does negative mass repel objects?
| topic :) | askscience | http://www.reddit.com/r/askscience/comments/gzkn9/does_negative_mass_repel_objects/ | {
"a_id": [
"c1rhdx2",
"c1rifca"
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"score": [
9,
3
],
"text": [
"Negative mass is *completely* hypothetical. Your question is like asking \"do unicorns like to eat carrots?\". If unicorns existed there's a chance that they would like carrots, but, unicorns don't exist, so it's not a usefu... | [] | [] | [
[],
[]
] | |
1hwxvo | What makes salt flat so flat? | So, I get that [these places](_URL_0_) are all that remains of ancient lakes, and the surface is largely made of the biological detritus of millennia of fish and other aquatic creatures, but shouldn't the original lakes have had their own topography? | askscience | http://www.reddit.com/r/askscience/comments/1hwxvo/what_makes_salt_flat_so_flat/ | {
"a_id": [
"caytsyk"
],
"score": [
4
],
"text": [
"Lakes are very low energy environments. So while the hole in the topography they filled will have been irregular, over the long periods (thousands, perhaps even up to millions of years) that the lake is present, fine sediment gets settled out rel... | [] | [
"http://en.wikipedia.org/wiki/Makadikadi_Basin"
] | [
[]
] | |
2hio8g | How is Gavrilo Princip viewed in Serbia today? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2hio8g/how_is_gavrilo_princip_viewed_in_serbia_today/ | {
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"text": [
"Although this question is likely violating the 20 year, the WWI centennial has caused some focus on the expressions of commemorations and historical memory. NPR had a good report, [*The Shifting Legacy Of The Man Who Shot Franz Ferdinand*](_URL_... | [] | [] | [
[
"http://beacon.salemstate.edu/~cmauriello/pdf_his102/princips.pdf",
"http://www.npr.org/blogs/parallels/2014/06/27/326164157/the-shifting-legacy-of-the-man-who-shot-franz-ferdinand"
]
] | ||
1v6y6h | how would brass instruments be different if they were made from different metals such as steel? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1v6y6h/eli5_how_would_brass_instruments_be_different_if/ | {
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"text": [
"The timbre would be slightly different, and they would be much harder and more expensive to manufacture.\n\nWe ... | [] | [] | [
[],
[],
[],
[],
[
"http://canadianbrass.com/about/ourinstruments"
],
[],
[]
] | ||
3nrw9i | what is the point of unmarked police cars if they are still very easily spotted? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3nrw9i/eli5what_is_the_point_of_unmarked_police_cars_if/ | {
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"text": [
"This is a form of confirmation bias sometimes known as the toupée fallacy. Take the following sentence:\n\n > All toupées look fake; I've never seen one that I couldn't tell was fa... | [] | [] | [
[],
[],
[],
[]
] | ||
3exkem | how come man made light (leds, etc) can't really replicate the way the sun or fire lights up stuff? | I've seen all kinds of lights (LEDs, florescent, incandescent, etc), and none of them really accurately light up stuff the same way the sun (or even fire) does.
Why? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3exkem/eli5_how_come_man_made_light_leds_etc_cant_really/ | {
"a_id": [
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"score": [
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"text": [
"Sunlight contains all colours of the spectrum, and artificial lights don't. There are actually light bulbs that radiate the full spectrum that are available on the market, but the main reason why you do... | [] | [] | [
[],
[],
[
"https://upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Wiens_law.svg/720px-Wiens_law.svg.png",
"https://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Spectra-Philips_32T8_natural_sunshine_fluorescent_light.svg/1489px-Spectra-Philips_32T8_natural_sunshine_fluorescent_light.svg.png",
... | |
1ml7ns | Why 1^∞ is undetermined? Why is it not 1? | Also why is 0*∞ also undetermined? I mean if it is the sum of infinite zeros then surely it's just 0? | askscience | http://www.reddit.com/r/askscience/comments/1ml7ns/why_1_is_undetermined_why_is_it_not_1/ | {
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"text": [
"It needs to be reminded that infinity isn't directly a number but rather a concept of ... | [] | [] | [
[],
[],
[],
[],
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] | |
weu2b | the us system of government | So you have a president, but he's not the leader of a political party and he can't nessessarily pass the laws he wants? What's the difference between the senate & congress? And then each state has it's own governor and senate?
Could someone give me a run down of what all these pieces are and how they relate to each ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/weu2b/eli5_the_us_system_of_government/ | {
"a_id": [
"c5cpji7",
"c5cq7ot"
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"score": [
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3
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"text": [
"The US Government is best viewed as 3 branches.\n\nThe executive branch is in charge of carrying out laws and running the government's operations. The President is the head of the executive branch. He is elected by the peo... | [] | [] | [
[],
[]
] | |
330c7a | Does honey contain protease? | askscience | http://www.reddit.com/r/askscience/comments/330c7a/does_honey_contain_protease/ | {
"a_id": [
"cqglpqf"
],
"score": [
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"text": [
"\"Protease\" isn't just one substance - there are many enzymes that can cleave proteins. (They're proteins, too, but generally don't contain sequences that they're vulnerable to themselves!) Honey has very little protein in it, only about 0.5%. I... | [] | [] | [
[]
] | ||
30ru5r | when someone asks if i've seen a particular movie or not, most of the time i can answer yes or no with extreme accuracy, so why can i not accurately remember every movie i've ever seen when not prompted with a title? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/30ru5r/eli5_when_someone_asks_if_ive_seen_a_particular/ | {
"a_id": [
"cpv8bra"
],
"score": [
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],
"text": [
"Psychological term called priming. When you hear something your brain activates or \"primes\" related topics. Hearing the title of a movie usually activates the memories associated with that movie."
]
} | [] | [] | [
[]
] | ||
2bq5zj | if women make up near equal percent of gamers, why are more games not being directed at female or neutral gender audience | As a marketing major, and with many feminists and gamers in my life, I've often had it brought up how unfair and biased gaming can be towards women. I assumed it was because it was more profitable to market towards males. After all, if it was equally profitable to market to females surely this would be happening, but I... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2bq5zj/eli5if_women_make_up_near_equal_percent_of_gamers/ | {
"a_id": [
"cj7suje",
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"score": [
5,
16,
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],
"text": [
"I'd like to see those statistics. I'm fairly confident that among FPS-style games, males outweight females fairly heavily. But, if you take into account a similar gender skew in favor of females and pu... | [] | [] | [
[],
[],
[]
] | |
bqr01c | if exercising makes your heart stronger why are amphetamines and anxiety bad for your hear? | Increasing your heart rate makes it stronger. But drugs like cociane, meth and disorders like anxiety that increase your heart rate are bad for your hearts health. Shouldnt it make the heart stronger? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bqr01c/eli5_if_exercising_makes_your_heart_stronger_why/ | {
"a_id": [
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5
],
"text": [
"Increasing you heart rate is like a car going faster: through exercise is like using the gas pedal normally to control the acceleration of the car; amphetamines, anxiety, drugs like cocaine is like your car going off a cliff... | [] | [] | [
[],
[]
] | |
bhbpkn | Why don’t former Italian colonies, such as Libya and Somalia, speak Italian? | I understand that the cultures and languages of those nations were already firmly rooted, but that was pretty similar to Algeria and Morocco who still ended up using French (and in Western Sahara, Spanish) quite extensively to this day. Why was this not the case in the Italian colonies? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/bhbpkn/why_dont_former_italian_colonies_such_as_libya/ | {
"a_id": [
"elsheuv"
],
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"text": [
"I'm just going to respond regarding Somalia, since I'm not as well read regarding Libya and other Italian colonial territories.\n\nThe short answer to your question is that Italy's footprint in Somalia was light for most of its colonial history,... | [] | [] | [
[]
] | |
16b7l9 | what does alzheimers do to the brain? if a "cure" was invented would it help current sufferers remember? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/16b7l9/eli5_what_does_alzheimers_do_to_the_brain_if_a/ | {
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"text": [
"As I understand it, Alzheimer's causes proteins to take the wrong shape in the brain. To put this in context the majority of proteins need to be the right sh... | [] | [] | [
[],
[],
[],
[],
[
"http://www.youtube.com/watch?feature=player_embedded&v=7_kO6c2NfmE"
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5c771z | how does a ship force a submarine to leave an area? | [This article](_URL_0_) says that a Dutch submarine was detected spying on the Russian fleet in the Mediterranean. Without using weapons how can a ship force a submarine to leave an area? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5c771z/eli5_how_does_a_ship_force_a_submarine_to_leave/ | {
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"text": [
"The only thing a submarine has is stealth. It uses the depths, different thermal layers and silent operations to hide in the background ocean noise.\n\nGetting detected means the submarine is pretty much a sitting duck. It r... | [] | [
"http://www.bbc.co.uk/news/world-europe-37928222"
] | [
[],
[]
] | |
1harxt | If East Asians invented movable type well before Gutenberg, why didn't it take off as well as it did in Europe? Was it because of the number of characters? Economics? What? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1harxt/if_east_asians_invented_movable_type_well_before/ | {
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"text": [
"I know there are some excellent 'asia-specialists' on here who can probably answer your question more completely, but I figured I'd just get things started. \n\nI believe the socia... | [] | [] | [
[],
[],
[],
[]
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2ct2zo | how can a pc game be developed for years? don't the constantly emerging new hardware capabilities far outrun what the game (engine) started out with? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2ct2zo/eli5_how_can_a_pc_game_be_developed_for_years/ | {
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"text": [
"Developers don't design for the cutting edge. ... | [] | [] | [
[],
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] | ||
ca0qxb | what is it that causes cysts/spots to rupture with such force? | When you squeeze toothpaste, it doesn't squirt out. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ca0qxb/eli5_what_is_it_that_causes_cystsspots_to_rupture/ | {
"a_id": [
"et4ycyc"
],
"score": [
4
],
"text": [
"The spot is visible because of pressure build up so when you pop the skin the small amount of pressure that there is, forces the gunk out. With toothpaste the only pressure comes from your fingers so it will come out as hard as you squeeze"
]
} | [] | [] | [
[]
] | |
34gj3t | Good sources for an essay on Pompey? | I have to write an essay "critically analysing the leadership and legacy of Pompey the Great." Any helpful primary and secondary source recommendations would be greatly appreciated as I have to include historiography and don't want to rely completely on articles i've found on the internet that, whilst relevant, are not... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/34gj3t/good_sources_for_an_essay_on_pompey/ | {
"a_id": [
"cquuba5"
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"score": [
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"text": [
"So this period is the most documented in Roman history. The primary sources are vast. Plutarch's Life of Pompey's already been mentioned, but Pompey comes up in several Lives. Cicero discusses Pompey in numerous letters, and gave several speec... | [] | [] | [
[]
] | |
24app5 | why are people scared by and fascinated with seemingly supernatural occurences? | I just spent the better part of an hour reading people's personal supernatural stories. I am thoroughly freaked out, but at the same time, I plan on going and finding more stories once I post this question. Why do people believe certain occurences are supernatural (i.e. they perceive something to be a monster in a dark... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/24app5/eli5_why_are_people_scared_by_and_fascinated_with/ | {
"a_id": [
"ch58ym8",
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"score": [
3,
3
],
"text": [
"Basically? Evolution. Back in the day (the era of evolutionary adaptation) our ancestors that heard noises in the dark and assumed the worst (that must be a predator!) outlived the ones that just went back to bed. Long story... | [] | [] | [
[],
[]
] | |
2w9aqa | why does cheating in a sport, i.e. the biogenesis scandal, deserve a 4 year prison sentence? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2w9aqa/eli5why_does_cheating_in_a_sport_ie_the/ | {
"a_id": [
"cooq0n5"
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"score": [
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"text": [
"It doesn't necessarily. However, falsely posing as a doctor and distributing a controlled substance, in this case testosterone, is a crime. Similarly, winning a game by murdering the entire other team would also likely give you a lengthy prison s... | [] | [] | [
[]
] | ||
6w8490 | how do aircraft stabilizers actually "stabilize" the aircraft? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6w8490/eli5_how_do_aircraft_stabilizers_actually/ | {
"a_id": [
"dm6esda"
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"text": [
"Aircraft wings create a force perpendicular to the chord of the wing, called Lift. They also create a nose down torque. Both of these change with airspeed. \n \nTo keep the wings from rotating forward you can either:\n \n1) apply an upward forc... | [] | [] | [
[]
] | ||
15lw49 | Historians, what do you think the North Korean people were told about WWII? | I am aware that Japan did invade Korea at one point in time. I'm just curious what you historians speculate/find out what they were told.
**Edit for the Mods:** [As per this post,](_URL_0_) from the Mod: /u/estherke, please read /r/askhistorians [rules](_URL_1_) | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/15lw49/historians_what_do_you_think_the_north_korean/ | {
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"text": [
"We actually don't have to speculate too much about it. While we don't have access to everything that's been written or published within North Korea, South Korea has a ministry ... | [] | [
"http://www.reddit.com/r/AskHistorians/comments/15lw49/historians_what_do_you_think_the_north_korean/c7nuxyv",
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"http://www.amazon.com/History-Lessons-Textbooks-Around-Portray/dp/1595580824/"
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252v3t | When the astronauts looked at the earth from the moon, could they see the stars as well? | The title may not be the best way to phrase my question.
I was looking at this photograph:
_URL_0_
and wondering if the astronauts could see stars behind the earth that didn't show up in the picture (due to the limitations of cameras). | askscience | http://www.reddit.com/r/askscience/comments/252v3t/when_the_astronauts_looked_at_the_earth_from_the/ | {
"a_id": [
"chdjg6h",
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2
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"text": [
"Considering that the Moon's atmosphere is so tenuous that it might as well not exist (as far as this question is concerned), they actually would have been able to see the stars a lot better than we can here on Earth. Most p... | [] | [
"http://www.fromquarkstoquasars.com/wp-content/uploads/2014/01/earth-from-the-moon.jpg"
] | [
[],
[]
] | |
ofs7w | Does a photon have to be absorbed in order for it to have been created in the first place? | Inspired by this: _URL_0_
I say that a photon can be emitted if it is not absorbed. yel02 disagrees with me.
I did a quick google search but didn't find an answer. It seems obvious to me that photons don't care about whether or not some mass is there to hit but I'm more than open to a good explanation as to why I'm... | askscience | http://www.reddit.com/r/askscience/comments/ofs7w/does_a_photon_have_to_be_absorbed_in_order_for_it/ | {
"a_id": [
"c3gxuc6",
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"score": [
29,
4
],
"text": [
"A little bit about quantum mechanics that's important to understand:\n\nThe real physical object is the wave function. A particle is only the manifestation of the wave function when it gets collapsed (when you observe it).\... | [] | [
"http://www.reddit.com/r/askscience/comments/of8pf/when_a_photon_leaves_a_star_what_are_the_odds/c3gtsbc"
] | [
[],
[]
] | |
4rrcvw | Did ladies really faint all the time in the past? | In a lot of fiction about the past, you see scenes where something unexpected and shocking is revealed and some fancy lady faints. I know this is definitely a little hammed up, but you see is so often that it makes me think there must be some truth to it. On the other hand, I know a bunch of ladies and have heard a lot... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4rrcvw/did_ladies_really_faint_all_the_time_in_the_past/ | {
"a_id": [
"d542jc1"
],
"score": [
36
],
"text": [
"Well, first of all, we must wave away fiction (as we sadly often have to do...) when it comes to history. The idea of women fainting at the sight of terrible things or even their mention is not as old as history. We have no suggestions (to my kn... | [] | [] | [
[
"https://s-media-cache-ak0.pinimg.com/564x/43/53/29/435329a26dfc6912a8af21206e64a812.jpg"
]
] | |
gx76z | The higgs boson doesn't actually constitute most of the mass to our bodies, right? | So apparently the higgs boson is the reason elementary particles have mass. However, we're made up of neutrons, electrons and protons. Electrons weigh 2000 times less than neutrons, so the higgs mechanism is NOT what constitutes most of our mass, right?
| askscience | http://www.reddit.com/r/askscience/comments/gx76z/the_higgs_boson_doesnt_actually_constitute_most/ | {
"a_id": [
"c1qydjo"
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"score": [
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],
"text": [
"You are partially correct. The electron does owe all of it's mass to the Higg's mechanism. However, protons and neutrons are a little bit different as they are composite objects (they are made of quarks). Quarks also have mass, given to them b... | [] | [] | [
[]
] | |
6a95xy | why does the usa seem so obsessed with race more then other countries? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6a95xy/eli5why_does_the_usa_seem_so_obsessed_with_race/ | {
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5
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"text": [
"Because of (1) yes slavery and (2) the USA has a more mixed population, with more immigrants from more countries and backgrounds, than nearly any other count... | [] | [] | [
[],
[],
[],
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[]
] | ||
6xgjzi | why is it that every lighting bolt is shaped differently? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6xgjzi/eli5_why_is_it_that_every_lighting_bolt_is_shaped/ | {
"a_id": [
"dmfr560"
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"score": [
3
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"text": [
"A lightning strike is basically an electrical charge in the air trying to reach the ground. Electricity always tries to find what's called the *path of least resistance*, or the easiest way down. That's going to vary based on lots of different ... | [] | [] | [
[
"http://i.imgur.com/e9cPao4.gif"
]
] | ||
bv23rd | how does decriminalization of drugs reduce drug abuse and crime in the countries that have done it? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bv23rd/eli5_how_does_decriminalization_of_drugs_reduce/ | {
"a_id": [
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"score": [
3,
2,
3,
3
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"text": [
"Decriminalization or legalisation allows drug sales to be more controlled, meaning you know what is going into the drugs and people are more informed about safe drug use. It also m... | [] | [] | [
[],
[],
[],
[]
] | ||
9mnuma | why do you continue to try and vomit/dry retch when you have drank to much, even after your stomach contents have completely vacated your body? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9mnuma/eli5_why_do_you_continue_to_try_and_vomitdry/ | {
"a_id": [
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3
],
"text": [
"The vomiting is your body’s response to an excessive amount of alcohol in your system, not just your digestive tract ",
"It's not just when you've drunk too much but when you're sick as well you also dry heave after vom... | [] | [] | [
[],
[]
] | ||
9va4v4 | do rgb led's have the ability to display a wide range of colors. what causes the color to change, is it the voltage? | I am planning to build an Arcade Cabinet and I have been thinking of wiring up led's to the Joysticks and Buttons. For the life of me, I can't understand what makes the led's change colors. There is so much information out there but I seem to be having trouble understanding it. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9va4v4/eli5_do_rgb_leds_have_the_ability_to_display_a/ | {
"a_id": [
"e9ahd8b"
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"score": [
9
],
"text": [
"An RGB LED is actually 3 LEDs in one package. One each of Red Green and Blue. But changing the intensity of each of the 3 LEDs you get a unique color from the single bulb. The human eye doesn’t see the individual colors but a mix into a single co... | [] | [] | [
[
"https://randomnerdtutorials.com/electronics-basics-how-do-rgb-leds-work/"
]
] | |
3kfd05 | apple airport express shows xbox one speed 270mb, xbox network stats says 30mb. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3kfd05/eli5apple_airport_express_shows_xbox_one_speed/ | {
"a_id": [
"cuwxwt7",
"cuwxxxw"
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"score": [
3,
3
],
"text": [
"I'm not sure, but maybe the units are different.\nApple airport express must be showing in Mb(Mega-bits) and Xbox network stats must be using MB(megabytes).\n8bits=1byte!\nSo that explains 30MB=240 Mb.\nLeft 30Mbs in apple e... | [] | [] | [
[],
[]
] | ||
45m62t | How often were peasants used in Middle Age battles? How were they trained? How were they equipped? Who paid for their equipment? | Any answers are appreciated. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/45m62t/how_often_were_peasants_used_in_middle_age/ | {
"a_id": [
"czzei6x",
"czzifdm",
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"score": [
5,
2,
2
],
"text": [
"Could you clarify what you mean, do you mean in the sense of any peasant class individual participating in a war or do you mean armed mobs with no training at all?",
"In Mughal North India, peasants... | [] | [] | [
[],
[],
[
"https://www.reddit.com/r/AskHistorians/comments/4248f4/if_peasant_conscripts_made_up_the_bulk_of_armies/"
]
] | |
22w7h0 | When roman emperors were divinized posthumously, what did that mean to the surviving population? And were the divinized emperors endowed with "powers", like Neptune/Poseidon's power over the sea? | I can understand giving an emperor a nice tomb (certainly his successor would want the same treatment upon his own death). I can even understand the careful treatment of his busts and statues and paintings, for posterity. But why divinize them? That seems excessive. It's not like they were a genetic lineage, many o... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/22w7h0/when_roman_emperors_were_divinized_posthumously/ | {
"a_id": [
"cgr7649"
],
"score": [
3
],
"text": [
"Hi, that's a very interesting question, I have never questioned the 'why' in that way before. The answer goes back to Julius Caesar, the persona and the events around his death. \n\n > \"He died in the fifty-sixth year of his age, and was ranked... | [] | [] | [
[
"http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.02.0132%3Alife%3Djul.%3Achapter%3D84",
"http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3atext%3a1999.02.0061%3alife%3djul",
"http://www.reddit.com/r/AskHistorians/comments/1mklxr/why_were_the_romans_so_fearful_of_forests/ccabr3m... | |
7ocreb | In terms of evolution, do beneficial traits often get passed down with irrelevant/negative traits? | As a made up example, a genetic trait makes mice super fertile (beneficial) but also gives them lighter pigment spots in their fur (irrelevant).
What is the implication of this in humans? When a gypsy tells you that you have a short life line on your hand could she actually be telling you that you have a high risk for... | askscience | https://www.reddit.com/r/askscience/comments/7ocreb/in_terms_of_evolution_do_beneficial_traits_often/ | {
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"ds8ta9v",
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"ds93ngc"
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"score": [
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3
],
"text": [
"It’s possible that a single gene can have multiple phenotypic effects (I can’t think of any but it’s possible), but it is much more likely, and common, that ... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Genetic_hitchhiking"
],
[],
[],
[
"http://www.genetics.org/content/197/3/795#sec-2"
]
] |
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