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wrbjm | #Physics #Astronomy Expanding Earth hypothesis and possible solutions to make it work!? | So today I watched a clip on it and read a few materials and got to wondering. You know that you can compress matter into a smaller volume than that particular matter is comfortable with. So if we say that when the earth became solid it in fact had a solid shell constraining the innards of the planet. Than would it be ... | askscience | http://www.reddit.com/r/askscience/comments/wrbjm/physics_astronomy_expanding_earth_hypothesis_and/ | {
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"No, it's not just the mass problem. \n\nThere's also the entire geometry problem. Take the roundest egg you can find, break its shell into pieces. Now try and fit those pieces to a the outside of a football or basketball. You notice how the cur... | [] | [] | [
[]
] | |
dj8qe2 | why high fevers make us loopy/silly | I understand that the heat and inflammation negatively affects the brain, but why and how exact does this affect our ability to form coherent thoughts and speech? I always feel high as a kite during a fever. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dj8qe2/eli5_why_high_fevers_make_us_loopysilly/ | {
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"The purpose of a fever is to cook whatever invader is inside of you. Your body is going into the most primitive for of survival so it's not too worried about higher level things such as say doing algebra. \n\nHomeostasis (maintaining an even envi... | [] | [] | [
[]
] | |
21tamk | Why did Early Christians call Hell "Hades" after the god rather than Tartarus? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/21tamk/why_did_early_christians_call_hell_hades_after/ | {
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"Both Greek words, *Hades* and *Tartarus* do double-duty as both an abode for the dead, and a personified deity-figure, so the choice is not between naming a place after the god Hades and the use of Tartarus.\n\nIt's a little unclear whether *hade... | [] | [] | [
[]
] | ||
25f9vr | why do i only seem to realize how drunk i am when i go to the bathroom? | Whenever I'm drinking heavily, I seem to only notice my level of drunkenness when I go the bathroom. Does this have something to do with being alone, or is it related to a lack of stimuli in the bathroom relative to the party? Thanks! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/25f9vr/eli5_why_do_i_only_seem_to_realize_how_drunk_i_am/ | {
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1zq8bz | How did America come to love sugar so much more than other countries? | I read in [*Everyday Life in Early America*](_URL_0_) that 17th-century Americans were known for having bad teeth because of their easy access to sugar from the Caribbean and maple syrup from New England. I'm wondering if this early access to sugar played a role in why American food tends to be so much sweeter than tha... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1zq8bz/how_did_america_come_to_love_sugar_so_much_more/ | {
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"At least part of the reason was [demand for rum.](_URL_0_) Rum is [made from sugar cane](_URL_1_), which we imported from the Caribbean, distilled into molasses and rum, then exported out again. Manufacture of rum was early Colonial New England'... | [] | [
"http://www.amazon.com/Everyday-Early-America-David-Freeman/dp/0060912510/ref=sr_1_1?ie=UTF8&qid=1394122773&sr=8-1&keywords=early+life+in+america"
] | [
[
"http://en.wikipedia.org/wiki/Rum#Colonial_America",
"http://www.ministryofrum.com/article_how_rum_is_made.php",
"http://www.acrwebsite.org/search/view-conference-proceedings.aspx?Id=12167"
]
] | |
1u7gwr | Are there many cases of a 'food taster' actually consuming poison and dying on the spot? | I've always thought that the role of the food taster was highly romanticised. I've never really believed that a poison could act so fast as to kill a guy seconds before a lord tucks into a meal especially after a single tiny taste.
Also, what if the taster had an allergy? There would be an assassination attempt witch... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1u7gwr/are_there_many_cases_of_a_food_taster_actually/ | {
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"For some reason, people seem to want to fill this thread with things they've heard, movie anecdotes, and statistics on the speed of various poisons. No... | [] | [] | [
[],
[],
[],
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"http://en.wikipedia.org/wiki/Halotus",
"http://penelope.uchicago.edu/Thayer/E/Journals/CP/27/2/Poisoning*.html"
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"http://books.google.com/books?id=zz9_Ve29eL0C&lpg=PA168&ots=rejwxQG-Mr&pg=PA168#v=onepage&q&f=false"
]
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1smuwd | How much is actually known about the naming of US cities and towns after European cities? Did they really just give the city the same name as the place they came from? | For example, the wiki page for Boston (US) says that it was so named because many of the residents were from Boston, Lincolnshire, England, "from which several prominent colonists had come." It just seems exceptionally lazy and a bit silly (*New* York at least acknowledges that its a different place), so I'm trying to ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1smuwd/how_much_is_actually_known_about_the_naming_of_us/ | {
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"Well, Wikipedia may not be the most nuanced and scholarly source for toponomic history. Pretty much every state has a book devoted t... | [] | [] | [
[],
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"https://archive.org/stream/sentryorbeaconh00wheigoog#page/n6/mode/2up",
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"http://gutenberg.net.au/ebooks/e00043.html"
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"http://www.greatfallstribune.com/article/20111023/LIFESTYLE/110230306/"
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6o4scv | If we have a blind spot in the center of our vision from our optical nerve, how come when I close one eye I don't see a "hole" in my vision? | From my understanding, the missing information would be filled in with information from the other eyeball, but if that one is closed how can we know what is in our blind spot? If we keep one eye closed and stare at the same point with our other eyeball would the blind spot slowly develop as our brain becomes more unsur... | askscience | https://www.reddit.com/r/askscience/comments/6o4scv/if_we_have_a_blind_spot_in_the_center_of_our/ | {
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"You do have a hole in your field of vision. Your brain is just reeeaaally good about making sure you don't notice it.\n\nIt uses details from what's around it to infer what *should* be there, and fills it in for you. \n\nTh... | [] | [] | [
[
"https://visionaryeyecare.files.wordpress.com/2008/08/blindspottestbwjpeg.jpg?w=500"
],
[]
] | |
hhu4a | What do we actually know about the Big Bang? | (originally posted in r/atheism, and somebody pointed me here)
Any time I'm in a religious debate with somebody, they always argue about the Big Bang. I'm not a physicist, so I don't really know how to respond. Disregarding the fact that their explanation is just "God did it," how can I explain the Big Bang to somebod... | askscience | http://www.reddit.com/r/askscience/comments/hhu4a/what_do_we_actually_know_about_the_big_bang/ | {
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"\"Big bang\" can mean several things.\nFor a cosmologist, it's a theoretical framework which claims that the Universe was hotter and denser in the past. If you push the predictions to the edge, they pre... | [] | [] | [
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] | |
a43qzl | How did King Kamehameha unite the Hawaiian Islands one by one? | I know he bought guns from Europeans that helped him, but I was hoping someone could go a little more in depth on how he conquered each island. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/a43qzl/how_did_king_kamehameha_unite_the_hawaiian/ | {
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"text": [
"##Part 1\n\nIn the work *Voices of Resistance and Renewal: Indigenous Leadership in Education* (2015), Housman writes concerning Indigenous leadership principles from a Hawaiian perspective in chapter three (pp. 49-75). In describing these princi... | [] | [] | [
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"http://www.hawaiianencyclopedia.com/part_1_complete_timeline_of_ha.html",
"http://ulukau.org/elib/cgi-bin/library?e=d-0chiefs-000Sec--11en-50-20-frameset-book--1-010escapewin&a=d&d=D0.12&toc=0"
]
] | |
2r8erz | why does israel collect palestine's taxes? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2r8erz/eli5_why_does_israel_collect_palestines_taxes/ | {
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"Because Palestine doesn't really exist yet. It's a complicated situation. The lands that are 'Palestine' are technically still owned by Israel. It's what is called a de jure st... | [] | [] | [
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2sjdgw | if cooking kills bacteria, why does it matter how long we leave meat out, or how often we thaw and refreeze it? | Just as the title says, I see a lot of food safety rules around heating/re-heating food, never re-freezing meat after the first freeze/thaw, etc.
Why does it matter if we cook the food in the end anyway?
(Assuming proper temperatures)
Edit: Wow, quick answers! Simple enough - noted! Perhaps I'll be a bit more car... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2sjdgw/eli5_if_cooking_kills_bacteria_why_does_it_matter/ | {
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tkl1c | What is the difference between Genetic Modification and Cross pollination? | Is Genetic Modification really as potentially harmful as some people want me to believe or is it nearly as safe as cross pollination? | askscience | http://www.reddit.com/r/askscience/comments/tkl1c/what_is_the_difference_between_genetic/ | {
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"Follow up question: do genetically modified crops ever contain kill switches to make them unusually easy to kill with a common herbicide? This would be to help control the crop and any other plants that... | [] | [] | [
[],
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"http://www.national-academies.org/morenews/20100413.html"
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2g7rn2 | why are 28 pages classified in the congressional 9/11 report? if the terrorists were being supported by another country, shouldn't that information be public? | Also, did Obama say that he would release the 28 pages but changed his mind later, and if so, why?
Shouldn't we know what happened? Why is our government keeping secrets from us? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2g7rn2/eli5_why_are_28_pages_classified_in_the/ | {
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"The government keeps secrets for a lot of reasons. For example, suppose the report contained information only available to someone highly placed in certain governments, A.K.A. a sp... | [] | [] | [
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1od44c | How do doctors tell the difference between someone with ADHD and someone who just has a poor attention span (unfocused, undisciplined, etc.) ? | askscience | http://www.reddit.com/r/askscience/comments/1od44c/how_do_doctors_tell_the_difference_between/ | {
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"The diagnosis of ADHD is a clinical one, meaning that it is not diagnosed based on objective data such as lab tests or imaging. It is based on a series of criteria agreed upon by... | [] | [] | [
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6ve5k4 | As we gain weight, do we store more blood? | askscience | https://www.reddit.com/r/askscience/comments/6ve5k4/as_we_gain_weight_do_we_store_more_blood/ | {
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"Yes, though normally it's related to height compared to weight. That is why people get hypertension because the blood has to be pumped harder through the adipose tissue to prevent tissue death, a good example of this if you've ever seen \"Body W... | [] | [] | [
[
"https://www.easycalculation.com/medical/blood-volume.php"
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3yao71 | Did Christians/Jewish groups ever perform acts of terrorism? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3yao71/did_christiansjewish_groups_ever_perform_acts_of/ | {
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"So this is a difficult question to answer due to the complex definition of Terrorism, however the answer is absolutely yes. For the sake of answering this question I am going to define terrorism as an act committed by a group against a civilian ... | [] | [] | [
[]
] | ||
3w5pew | how come the f-35 program cost way more to develop than the f-22 despite being generally less technologically advanced? | The F-22 program cost about 66.7 billion dollars while the F-35 program costed about 1.3 trillion dollars. Yet there is an export ban on the F-22 because we can't risk other nations having it but the F-35 is available for export.
EDIT: So it seems I was misinformed about the costs. I didn't realize that the F-35 cos... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3w5pew/eli5_how_come_the_f35_program_cost_way_more_to/ | {
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"F-35 is pretty much 3 different planes, that look similar. \n\n* Navy version has different wings and modifications to frame to support carrier landing. \n\n* Marine version has VS... | [] | [] | [
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"http://www.dod.mil/pubs/foi/Reading_Room/Selected_Acquisition_Reports/F-22-SAR-25_DEC_2010.pdf",
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7po8d5 | Did the Habsburg monarchs know about incest problems? | The Austrian Habsburg monarchy was/is famous for its rampant inter-marrying of close family members. Hence suffering from incest-connected disabilities such as the notorious "Habsburg jaw" (I hope that's the right translation).
My questions are: did they know that these disabilities were caused by incest or was this a... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7po8d5/did_the_habsburg_monarchs_know_about_incest/ | {
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"/u/cleopatra_philopater talked about royal inbreeding in [In societies where incestual marriage with very close degrees of relation was tolerated/celebrated (eg; brother-sister pairings in Egypt) did people ever notice or point out that the child... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/6rp6l2/in_societies_where_incestual_marriage_with_very/dl7mdaz/?st=jaypmeyh&sh=455a3a71",
"https://www.reddit.com/r/AskHistorians/comments/6ruius/wherewhen_did_the_western_aversion_to_incestuous/?st=j6lakdwo&sh=6c08b86f"
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d6e3zr | How close can two planets be to each other? | Sometimes in Science-Fiction there are artist's impressions of planets being very close to each other. This makes for amazing virtual vistas but wouldn't two planets in very close proximity to each other influence one another? What is physically possible and are there any known planets with orbits very close to each ot... | askscience | https://www.reddit.com/r/askscience/comments/d6e3zr/how_close_can_two_planets_be_to_each_other/ | {
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"Yes, they most definitely will influence each other. How much? Well that depends on mass, distance, and just how different the planets are from each other. \n\nSo for your SciFi example, You're probably imagining two planets... | [] | [] | [
[
"https://www.youtube.com/watch?v=pe83T9hISoY"
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[
"https://en.wikipedia.org/wiki/Roche_limit#Fluid_satellites"
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7vf6fp | how do altimeters work? (altitude detecting gauges) | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7vf6fp/eli5_how_do_altimeters_work_altitude_detecting/ | {
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} | [] | [] | [
[]
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6pf4y1 | why some movies get low rating on imdb and rotten tomatoes but it's still enjoyable and well liked by a lot of people? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6pf4y1/eli5_why_some_movies_get_low_rating_on_imdb_and/ | {
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"Because an enjoyable movie doesn't necessarily have to be a good movie. The directing or acting or whatever could technically be \"bad\" but you still might ... | [] | [] | [
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"https://www.youtube.com/watch?v=lFI09rbuHQ8"
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a1jhf6 | What causes the magnetic moment of charged particles like the electron? | Every charged particle whose spin is not zero has a magnetic moment. But what is the source of the magnetic moment? I know it is theoretically descriped by the Dirac Theory but I don't understand the actual reason that causes the magnetic moment. Has it something to do with vacuumpolarisation? | askscience | https://www.reddit.com/r/askscience/comments/a1jhf6/what_causes_the_magnetic_moment_of_charged/ | {
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"text": [
"I don't think you'll find a deeper \"reason\". It is a particle property, just like the electric charge and the mass."
]
} | [] | [] | [
[]
] | |
2id6hm | Did Jerry Lee Lewis and Elvis Presley change R & B and Rock and Roll in any significant way, or did they just popularize the music among white Americans? | Were any or many Black people fans of those performers? If those musicians *did* bring change to the genre, were any later Black performers influenced by them? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2id6hm/did_jerry_lee_lewis_and_elvis_presley_change_rb/ | {
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"Not an expert, but I'm currently taking a History of Rock class and I might be able to shed some light on this, regarding Elvis specifically. First a little bit of background:\n\nIt's generally agreed upon that the common ancestor of almost all ... | [] | [] | [
[]
] | |
1vvt0i | Was getting attacked by large predators a problem for early American colonists or frontier settlers? | These days you very occasionally hear of a camper getting attacked and/or killed by a bear, a trail jogger or mountain biker getting attacked/killed by a cougar in a state park, etc. But we rarely venture into the deep of what remains of their habitat and the attacks are very rare even when we do.
When I think of earl... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1vvt0i/was_getting_attacked_by_large_predators_a_problem/ | {
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"Governor Bradford only makes a single mention of wolves in the context of actual encounters. While scouting for a location to set up their colony some were heard howling in the darkness and frightened off with gunfire. \n\n > So being very weary,... | [] | [] | [
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"https://archive.org/stream/winthropsjournal00wint/winthropsjournal00wint_djvu.txt"
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] | |
2y9v8n | how do computer screens work and how do they display images | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2y9v8n/eli5how_do_computer_screens_work_and_how_do_they/ | {
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"In LCD monitors an electric current is sent through the crystal,rearranging the 'spin' of the picture to display a certain color. There are 3 layers, a plastic screen, a color censoring sheet and the crystal _URL_0_ see the color a backlight at t... | [] | [] | [
[
"display.To"
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9s1jxi | why is it only red light that develops photos? what makes red able to do this as opposed to any other color, or even natural daylight? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9s1jxi/eli5_why_is_it_only_red_light_that_develops/ | {
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"text": [
"Red light doesn't develop photos. Photos are developed with chemicals. They use red lights in dark rooms because black and white film is insensitive to red light, so you can see what you're doing without exposing the film m... | [] | [] | [
[],
[]
] | ||
cwube1 | why does doubling cooking temperature not cut cooking time in half? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cwube1/eli5_why_does_doubling_cooking_temperature_not/ | {
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"It can do, but there are too many variables for it to be a direct relationship like heating all the way through, what the water percentage is, the size of object or even size of o... | [] | [] | [
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2cqykv | Were there different ethnic neighborhoods in the city of Rome where ethnicities clustered, such as the Chinatowns in various US cities? | I mean Rome under the Roman Empire | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2cqykv/were_there_different_ethnic_neighborhoods_in_the/ | {
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"text": [
"To a point. Around the Aventine, for example, there has been found a cluster of Palmyrene inscriptions, which indicates that there was a community there. Palmyra was an oasis city in Syria at the center of a number of trade routes that is famous... | [] | [] | [
[]
] | |
7goe79 | are organs the same size for everyone or are they bigger for naturally bigger people and vise versa? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7goe79/eli5_are_organs_the_same_size_for_everyone_or_are/ | {
"a_id": [
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"score": [
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5
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"text": [
"Of course, Organs needs to grow proportionately to the size of the person so they may function properly. A good example is the heart. The heart from a small person may not function properly on the body of someone with a bigg... | [] | [] | [
[],
[]
] | ||
aj8juz | What were the Finns doing during the Viking age? What kind of contact did they have with their Nordic neighbors? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/aj8juz/what_were_the_finns_doing_during_the_viking_age/ | {
"a_id": [
"eetr78d"
],
"score": [
7
],
"text": [
"'the Finns' are in fact very problematic term for the Viking Ages. \n\nDo you mean the word as current Finlanders, or, 'the Finns' in contemporary and medieval Scandinavian sources? \n\nIf you mean the former, it would be very difficult for me... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/ado6lq/what_did_premodern_societies_such_as_the_inuits/"
]
] | ||
5ljd6j | why are some things transparent when in liquid form but not in solid form? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5ljd6j/eli5_why_are_some_things_transparent_when_in/ | {
"a_id": [
"dbw71so"
],
"score": [
2
],
"text": [
"It all depends on the bonds forming (this is actually more of a chemistry question). When a thing changes states (like solid to liquid) the way its molecules bond changes and these bonds might form structures that bend light in a different way."
... | [] | [] | [
[]
] | ||
9le37s | what should i do when someone around me has a seizure? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9le37s/eli5_what_should_i_do_when_someone_around_me_has/ | {
"a_id": [
"e75ybq7",
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"score": [
3,
2,
2
],
"text": [
"Help them to the ground and put them in the recovery position. Call 911 regardless. Worst case they'll just check his vitals and leave. Seizures can cause permanent damage the longer they run. EMS will ... | [] | [] | [
[],
[],
[]
] | ||
qw1lw | Reddit, why doesn't corn on the cob turn into popcorn when heated in the microwave? | I heated a mini corn on the cob today in the microwave and didn't get any popcorn? Explain. | askscience | http://www.reddit.com/r/askscience/comments/qw1lw/reddit_why_doesnt_corn_on_the_cob_turn_into/ | {
"a_id": [
"c40wiji",
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"score": [
12,
2
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"text": [
"Certain [genetic varieties of corn](_URL_0_) have different propensities for popping. Zea mays averta is most commonly used for popping corn, while zea mays saccharata is a type of sweet corn (that you would eat off the co... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Maize#Genetics"
],
[]
] | |
2ou5yp | how did non-contemporary technology navigators/explorers get to their desired destination with such accuracy? | As an example, how did James Cook (in his first voyage to Australia) navigate from Cape Horn to Tahiti, a tiny island almost 8,000 kilometers away, without either getting extremely lucky or lost? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2ou5yp/eli5_how_did_noncontemporary_technology/ | {
"a_id": [
"cmqjkq5",
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"text": [
"The use of calculated tools and a very good system of star watching and sun tracking.\n\nNavigating used to be a very serious trade, taking years to learn and being very efficient with sometimes crude and unreliable tools.",... | [] | [] | [
[],
[]
] | |
1oo1sh | Did the Neanderthals have music? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1oo1sh/did_the_neanderthals_have_music/ | {
"a_id": [
"cctw0ai",
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"text": [
"Likely. There was an artifact found in Slovenia that suggests that would have been the case. It was a fragment of a bone flute made from the femur of a bear which is believed to be of Neanderthal origin. More info here: _UR... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Divje_Babe_Flute"
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[
"http://news.nationalgeographic.com/news/2009/06/090624-bone-flute-oldest-instrument_2.html",
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"http://www.greenwych.ca/fl-compl.htm",
"http://www.youtube.com/watch?v=sHy9FOblt7Y",
"http://www.scienc... | ||
2mw27y | why are the careers of famous people so damaged by rape allegations when there's been no trial? | I've heard that reruns of The Cosby Show are being dropped over the allegations against Cosby, for example. Are the TV stations that afraid of social stigma that they ignore innocent until proven guilty? ELI5 prompted by this: _URL_0_
Disclaimer: I'm not endorsing rape/rapists, and I'm not saying people shouldn't be s... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mw27y/eli5_why_are_the_careers_of_famous_people_so/ | {
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5,
5,
6,
2
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"text": [
"The stigma that comes with an accusation is like having herpies. No one wants anything to do with herpies.",
" > Are the TV station... | [] | [
"http://www.bbc.co.uk/news/world-us-canada-30125546"
] | [
[],
[],
[],
[],
[],
[]
] | |
7f9vhv | Why didn't the Imperial German Navy, make more attempts at commerce raid in World War I. | The Germans appeared to have a lot of success early in the war, even taking account of the loss of Von Spee's squadron at the Battle of the Falklands.
Did the German navy ever consider seriously conducting long range commerce raiding, and attempt to repeat their early successes? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7f9vhv/why_didnt_the_imperial_german_navy_make_more/ | {
"a_id": [
"dqaipox"
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"score": [
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"text": [
"There are essentially two phases to German commerce raiding in WWI. The first was carried out by cruisers and auxiliaries that were based in the German colonies. However, these were hunted down relatively soon after the declaration of war. In 191... | [] | [] | [
[]
] | |
3b2cnz | what is the source of the idea that animals and insects can "smell fear?" any credibility to fear having a smell? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3b2cnz/eli5_what_is_the_source_of_the_idea_that_animals/ | {
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90,
6,
2,
2,
7
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"text": [
"When people are scared, their breathing and heart rate both increase. Your body temperature rises, and you exhale more CO2 than normal.\n\nInsects can detect... | [] | [] | [
[],
[],
[],
[
"https://www.youtube.com/watch?v=p7fXa2Occ_U"
],
[]
] | ||
7tud8w | Was ancient Mesopotamia democratic before power was consolidated by kings and emperors? | I came across [this paper](_URL_0_) from 1943 by Thorklid Jacobsen that argues that Ancient Mesopotamia was one of the first examples of a democratic form of governance, with an assembly choosing their leaders, and the leaders having to present their proposals and actions before the assembly of citizens for approval. H... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7tud8w/was_ancient_mesopotamia_democratic_before_power/ | {
"a_id": [
"dtt03te"
],
"score": [
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"text": [
"The idea of \"Primitive Democracy\" in ancient Mesopotamia seems to still hold currency. Jacobsen's work has been cited and elaborated in books by several big-name assyriologists like Saggs, Oppenheim, and Kramer. \nI found [this conference paper... | [] | [
"https://www.jstor.org/stable/542482?seq=8#page_scan_tab_contents"
] | [
[
"https://dro.deakin.edu.au/eserv/DU:30033468/isakhan-democracybuildingin-2008.pdf",
"http://www.pwhce.org/apr/apr66.html"
]
] | |
1c3rul | How do the chains on a bicycle work? | How is it that the size of the gear around which the chain moves makes it easier/harder to pedal? If the chain is the same length, how does this make a difference?
I don't know much about mechanics/engineering, so a somewhat simple answer would be appreciated. Thanks! | askscience | http://www.reddit.com/r/askscience/comments/1c3rul/how_do_the_chains_on_a_bicycle_work/ | {
"a_id": [
"c9cqa3s"
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"score": [
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"text": [
"Torque is the result of multiplying force by distance. The reason that it's easier to turn a nut with a wrench is because you are applying the force some distance away from the axis. Move twice as far away, and you only need half the force to d... | [] | [] | [
[]
] | |
2mp7pc | what are spider venoms made from, how does a spider produce it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mp7pc/eli5_what_are_spider_venoms_made_from_how_does_a/ | {
"a_id": [
"cm6au1c"
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"score": [
3
],
"text": [
"Spider venom is not all the same, but most are neurotoxins which are polyamines or polypeptides. Spiders produce it from a gland they have."
]
} | [] | [] | [
[]
] | ||
bvku95 | why do our eyes burn/sting when something gets in them? | What exactly causes that burning feeling? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bvku95/elif_why_do_our_eyes_burnsting_when_something/ | {
"a_id": [
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"text": [
"The eyes are one of, if not the most sensitive part of the body, it's simply them getting irritated. \n\nJust like a corrosive substance will irritate your skin, the eyes are so sensitive that dust, smoke or even an eyelash will cause pain. Beca... | [] | [] | [
[]
] | |
7t1i0e | Is it possible to use cosmic rays to generate electricity? In other words could we use cosmic rays to power solar panels or other types of materials? | I am in a research group and this is a question we began discussing. I just don’t know much about cosmic rays and their ability to affect or develop electricity.
Edit: I should mention that our device will be sent into the upper stratosphere on a balloon payload. | askscience | https://www.reddit.com/r/askscience/comments/7t1i0e/is_it_possible_to_use_cosmic_rays_to_generate/ | {
"a_id": [
"dt95qsb"
],
"score": [
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],
"text": [
"Sure, in principle. But the remnants of cosmic rays that reach sea level are minimally ionizing radiation, which means that they don't deposit very much energy into things. You won't get much energy from them."
]
} | [] | [] | [
[]
] | |
1y6slo | When the Mongols were poised to attack Europe, how aware was western Europe of the impending attack? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1y6slo/when_the_mongols_were_poised_to_attack_europe_how/ | {
"a_id": [
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15
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"text": [
"They were on the whole pretty unconcious of the threat. The only prior knowledge Europe had had of the Mongols came from garbled stories that Crusaders had heard about Mongol conquests in the East. As they had very little... | [] | [] | [
[],
[]
] | ||
106lri | why do oil refineries/wells have these burning tubes? | [This](_URL_0_) is what I'm thinking of, for visual reference. I don't know their proper name. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/106lri/eli5_why_do_oil_refinerieswells_have_these/ | {
"a_id": [
"c6av98s"
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"score": [
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"text": [
"I used to work at a refinery, and by talking with the operators there are several reasons. First, there are a lot of byproducts that are created that would be harmful such as Benzine-based derivitives. The best way to dispose these are to burn th... | [] | [
"http://redd.it/1061fc"
] | [
[
"http://maps.google.com/?ll=29.373466,-94.903918&spn=0.001194,0.001867&t=h&z=19"
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30kgys | if most voters disagree with corporate lobbying and company funded candidates, then why do we still vote for them? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/30kgys/eli5if_most_voters_disagree_with_corporate/ | {
"a_id": [
"cpta3s3",
"cptem3t"
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"score": [
7,
2
],
"text": [
"Some states experimented with severe term limits for politicians in the 1990s. The idea was supposed to be that if you kicked out all the career politicians and forced voters to elect fresh faces who had no ties to lobbyist... | [] | [] | [
[],
[]
] | ||
1xl2xg | explain how american investing works. buying/selling stocks, bonds, trusts. | Explain how American investing works. Buying/Selling stocks, bonds, trusts. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1xl2xg/explain_how_american_investing_works/ | {
"a_id": [
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"score": [
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"text": [
"Stocks involve giving money to a company in return for a say in how it is run and a share in its future profits. If the company does well, you can resell the stocks to someone else for more than you bought them.\n\nBuying a ... | [] | [] | [
[],
[]
] | |
88y0ci | why cables - like laptop charging cable and phone usb cables- stop working without any obvious damage ? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/88y0ci/eli5_why_cables_like_laptop_charging_cable_and/ | {
"a_id": [
"dwo0l5f"
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"score": [
3
],
"text": [
"The wire inside the cable might break over time, that's why sometimes your headphones work in only certain positions, and then stop working altogether. It might also be that the electronics inside the adapter got messed up due to prolonged use, s... | [] | [] | [
[]
] | ||
1j629y | What did middle class Russian women wear in the late 1700s and early 1800s? | Pictures would be great too, thanks! | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1j629y/what_did_middle_class_russian_women_wear_in_the/ | {
"a_id": [
"cbbvt98"
],
"score": [
2
],
"text": [
"What do you mean \"middle-class?\" The middle class is an extremely recent phenomenon and is largely only has significance as a sociological category in the United States. In the 1700-1800s in Russia we are still deep in the system of Soslovie wh... | [] | [] | [
[]
] | |
3gxjdn | Do Dark Matter and/or Dark Energy remain of the same quantity through time? | askscience | http://www.reddit.com/r/askscience/comments/3gxjdn/do_dark_matter_andor_dark_energy_remain_of_the/ | {
"a_id": [
"cu2me7d"
],
"score": [
9
],
"text": [
"Dark energy and dark matter are two completely different things which unfortunately share similar names. While the density of dark energy remains constant as space expands over time (and is itself the cause of the accelerated expansion), dark mat... | [] | [] | [
[]
] | ||
7kwkxk | How did scientist come up with and prove carbon dating? | askscience | https://www.reddit.com/r/askscience/comments/7kwkxk/how_did_scientist_come_up_with_and_prove_carbon/ | {
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"score": [
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"text": [
"So, as you may know, the number of p... | [] | [] | [
[],
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[],
[
"https://en.m.wikipedia.org/wiki/Dendrochronology"
],
[],
[],
[],
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izy00 | Why doesn't lightning travel at the speed of light. | I've seen several videos where the formation of a lightning bolt has been captured by a high speed camera. It must be going significantly slower than the speed of light for this to be possible. Why? | askscience | http://www.reddit.com/r/askscience/comments/izy00/why_doesnt_lightning_travel_at_the_speed_of_light/ | {
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"text": [
"What’s happening is the ionization of air by high‐voltage electricity. It starts at the clouds and makes a path to the ground. The ionization propagates quickly, but at nowhere near the speed of light.\... | [] | [] | [
[],
[],
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] | |
lh7h3 | Question for someone that understands the FDA drug approval process. | I apologize if this question is too specific, but I am having trouble finding answers anywhere else. Mifamurtide is a drug used against osteosarcoma in youth and children. The drug was denied approval by the FDA in 2007. As I understand it, they found some problems with the data. I've read through the actual [FDA repor... | askscience | http://www.reddit.com/r/askscience/comments/lh7h3/question_for_someone_that_understands_the_fda/ | {
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"score": [
3,
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3,
2
],
"text": [
"As a result of that FDA report, mifamurtide was denied approval by the FDA\n\n > As previously announced, in the U.S., the Company continues to work with the COG as well as externa... | [] | [
"http://www.fda.gov/ohrms/dockets/ac/07/briefing/2007-4301b1-02-FDA-redacted.pdf"
] | [
[
"http://www.prnewswire.co.uk/cgi/news/release?id=251191",
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"http://www.news-medical.net/news/2007/08/28/29154.aspx?page=2"
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"http://www.prnewswire.co.uk/cgi/news/release?id=251191",
"chemotherapy.In",
"http://www.news-medical.net/news/2007/08/28/29154.aspx?p... | |
6zg4x0 | Did Henry VIII make divorce legal only for himself, or for the whole nation under the Church of England? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6zg4x0/did_henry_viii_make_divorce_legal_only_for/ | {
"a_id": [
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"score": [
105,
19
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"text": [
"Just to make a distinction... Henry VIII never actually divorced any of his wives. \n* Catherine's was an annulment. It was declared an invalid marriage due to her previous marriage to Henry's brother, Arthur.\n* Anne Boy... | [] | [] | [
[],
[
"http://blog.nationalarchives.gov.uk/blog/till-death-us-part-divorce-medieval-england/"
]
] | ||
40ll7l | why do you lose your radio signal(fm) when you've driven a fair distance into a tunnel, but you don't regain it until you're completely out of it? | Title. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/40ll7l/eli5_why_do_you_lose_your_radio_signalfm_when/ | {
"a_id": [
"cyv5cz6",
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"score": [
31,
10
],
"text": [
"It depends on the direction the FM signal is coming from. Think of it like a beam of light (actually, radio signals technically *are* light!) where solid structures casts shadows.\n\nIf the light is shining towards the ent... | [] | [] | [
[],
[]
] | |
9mghmv | what causes the vibrant clouds when a rocket is launched at night | As seen in this spaceX video. What causes the bright clouds, and why are they multicolored, what do the colors come from?
_URL_0_ | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9mghmv/eli5_what_causes_the_vibrant_clouds_when_a_rocket/ | {
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"text": [
"You're seeing condensation trails from the rocket exhaust. As the rocket fuel burns, it creates water vapor. That water vapor condenses and freezes in the upper atmosphere. It happened to show up very well in this launch because of the time ... | [] | [
"https://imgur.com/a/fPoSTmN"
] | [
[]
] | |
j2n1f | for those of you who are looking for a simple explanation of complex things: simple wikipedia | explainlikeimfive | http://simple.wikipedia.org | {
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"http://simple.wikipedia.org/wiki/Wikip... | ||
m2izj | why can't you make a bit-for-bit copy of a disc and use that as the original? | It seems to me that if the original disc is copied bit-for-bit to a new disc, the new one is indistinguishable from the old. Yet, you can't simply copy an XBox/Wii disc and expect it to work without patching your disc drive's firmware. I don't plan on doing this(did a few months ago, realized it was a dick move), but I... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/m2izj/eli5_why_cant_you_make_a_bitforbit_copy_of_a_disc/ | {
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"text": [
"Th... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Compact_Disc_and_DVD_copy_protection"
],
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Compact_Disc_and_DVD_copy_protection"
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[],
[],
[],
[]
] | |
fvb8ra | why does putting pressure on a specific point on your neck 'cure' a creak in the neck? | And then when you take the pressure off, it's suddenly as annoying and uncomfortable as ever? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fvb8ra/eli5_why_does_putting_pressure_on_a_specific/ | {
"a_id": [
"fmhisc1"
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"text": [
"It's possible you have a \"pinched nerve\" essentially the muscles in your neck are cramping and by pressing on it you release some of that pressure on the nerve. It's also possible that it's just simple muscle fatigue and pressing on the affecte... | [] | [] | [
[]
] | |
2t120j | People say that a nuclear bomb is equivalent to X tons of TNT. Well, if X tons of TNT were actually there instead of a nuclear bomb, will it have the same effect? | Perhaps without the radiation. But I'm talking more about the shockwave, destructive force, etc. And assuming you can blow them up at the exact same time.
| askscience | http://www.reddit.com/r/askscience/comments/2t120j/people_say_that_a_nuclear_bomb_is_equivalent_to_x/ | {
"a_id": [
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4
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"text": [
"It's an equivalency of energy \n\nThey could also equate it too calories or joules but tnt they think is more relatable\n\nTo answer your question directly no it would not explode the same simply because a nuclear bombs vol... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Trinity_%28nuclear_test%29#100-ton_test",
"http://en.wikipedia.org/wiki/Minor_Scale",
"http://en.wikipedia.org/wiki/Operation_Sailor_Hat"
]
] | |
1ttn6o | Do the theories of /r/pornfree and /r/nofap hold any scientific weight? | askscience | http://www.reddit.com/r/askscience/comments/1ttn6o/do_the_theories_of_rpornfree_and_rnofap_hold_any/ | {
"a_id": [
"cebg28y",
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"score": [
40,
8,
2
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"text": [
"User SteezmasterJones has alluded to the argument about pornography affecting our respect for women and objectification, which I don't know of research that directly speaks to the question, so I'll tac... | [] | [] | [
[],
[],
[
"http://www.independent.co.uk/life-style/health-and-families/health-news/pornography-addiction-leads-to-same-brain-activity-as-alcoholism-or-drug-abuse-study-shows-8832708.html",
"http://blogs.plos.org/mindthebrain/2012/11/12/why-addiction-is-not-a-brain-disease/"
]
] | ||
418naf | Why are Uranus's moons equatorial? | Assuming a protoplanet (or more) collided with Uranus, why would the moons change their orbital plane to match Uranus's equator?
If they were there before the collision, how were they affected by the collision so that they moved so much? And if they were captured after the collision, why is it that they didn't stay in... | askscience | https://www.reddit.com/r/askscience/comments/418naf/why_are_uranuss_moons_equatorial/ | {
"a_id": [
"cz0pg6k"
],
"score": [
23
],
"text": [
"So first, let's get this out of the way: The idea that Uranus got knocked on its side by a severe impact early on is an old theory, and in the past 20 years this idea has strongly fallen out of favor. It turns out it's almost impossible to have ... | [] | [] | [
[
"http://iopscience.iop.org/article/10.1088/2041-8205/712/1/L44/meta"
]
] | |
230dn5 | why does polishing a white object to a high sheen not turn it into a mirror? | White reflects all colors, highly polished surfaces are shiny and prevent diffraction, so what gives?
Also why does black actually seem to do a better job of this? And what base-color is actually best for mirrors? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/230dn5/eli5_why_does_polishing_a_white_object_to_a_high/ | {
"a_id": [
"cgs5z9b",
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"score": [
6,
3
],
"text": [
"There are two kinds of reflection: specular reflection and diffuse reflection.\n\nSpecular reflection is when a beam of light hits an object, and is reflected back in one *specific* direction. If you shot a laser at a specul... | [] | [] | [
[],
[]
] | |
23ot0t | if pain is your body's way of telling you to stop doing something, then why does exercise hurt? | I thought that pain was a warning signal from your brain telling you to stop doing something that is detrimental to your health, i.e. instinctively dropping a pan if it's handle is too hot & burns you.
Workouts are painful, physically and mentally, all my body wants to do is stop and rest. So how is exercise painful... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/23ot0t/eli5_if_pain_is_your_bodys_way_of_telling_you_to/ | {
"a_id": [
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"cgzgeeq",
"cgzgk8w",
"cgzgqau",
"cgzmjel",
"cgzmk28",
"cgzn01k",
"cgzubx0",
"c... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
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9bvnb4 | how does baking soda remove scratches from spectacles | So one of the things to removes scratches from spectacles is to use baking soda as a paste and use it to buff your specs to remove it. I'm confused how does that work | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9bvnb4/eli5_how_does_baking_soda_remove_scratches_from/ | {
"a_id": [
"e569iyf"
],
"score": [
7
],
"text": [
"It is a really mild abrasive. It will only remove tiny scratches. That is also why it is a tooth whitener.\n\nBasically if it doesn't fully dissolve, it is slightly harder than glass and grinds it down.\n"
]
} | [] | [] | [
[]
] | |
mfz5s | today's xkcd comic, "where citations come from". | _URL_0_ | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/mfz5s/eli5_todays_xkcd_comic_where_citations_come_from/ | {
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"text": [
"I hope this doesn't double-comment. I submitted a response and it didn't work (damn IE). Here goes again:\n\nThe punchline is the fact... | [] | [
"http://www.xkcd.com/978/"
] | [
[],
[],
[
"http://techdebug.com/blog/2008/04/19/wikipedia-article-creates-circular-references/"
],
[],
[],
[
"http://techdebug.com/blog/2008/04/19/wikipedia-article-creates-circular-references/"
]
] | |
8b8ds1 | why do people prefer someone who is a lot like them than someone who is not? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8b8ds1/eli5_why_do_people_prefer_someone_who_is_a_lot/ | {
"a_id": [
"dx4pgur"
],
"score": [
2
],
"text": [
"This is both quite a bit of a generalization, and very much subject to individual taste. While there's some truth there, it's absolutely not that simple. And there's also the conventional wisdom (equally flawed) that opposites attract.\n\nA decen... | [] | [] | [
[
"https://www.psychologytoday.com/us/blog/head-games/201412/do-opposites-really-attract-its-complicated"
]
] | ||
1vzta9 | why a car maneuvers better in reverse than forwards. | As most of us know, it's much easier to parallel park a car in reverse than forwards. I don't understand why-the steering wheels still have the same angle so surely the turning circle is the same? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1vzta9/eli5_why_a_car_maneuvers_better_in_reverse_than/ | {
"a_id": [
"cexck27",
"cexckr5"
],
"score": [
2,
2
],
"text": [
"The front wheels of the car are the steerable wheels, they tell the back wheels where to go. It is easier to place the static wheels where they need to go first and then adjust the front accordingly.",
"When you have to ... | [] | [] | [
[],
[]
] | |
5jqli5 | Why does the Pauli exclusion principle cause the strong nuclear force to be repulsive at short distances? | So the strong force acts in the positive direction (repulsive force) at short distances otherwise it would violate the exclusion principle. But why do short distances violate it? Which quantum property/number is violated with distance?
| askscience | https://www.reddit.com/r/askscience/comments/5jqli5/why_does_the_pauli_exclusion_principle_cause_the/ | {
"a_id": [
"dbi5mu0",
"dbi6wed"
],
"score": [
7,
22
],
"text": [
"/u/robusetceleritas would love this one.",
"The strong force between nucleons, the **residual** strong force, is sort of an amalgamation of many quark-quark interactions. It's sort of analogous to intermolecular forces ... | [] | [] | [
[],
[]
] | |
1om90k | How has the image of Death (the grim reaper) changed over time? When and why did he come to be represented with a dark hood and scythe? (X-Post Art History) | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1om90k/how_has_the_image_of_death_the_grim_reaper/ | {
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"cctm727",
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"score": [
93,
18,
11,
7,
7,
4
],
"text": [
"re your second question, there was a similar post a couple of months ago, so check it for previous responses:\n\n[Where did the grim ... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/12658v/how_diddo_different_cultures_anthropomorphize/",
"http://www.reddit.com/r/AskHistorians/comments/1j0vq3/where_did_the_grim_reaper_as_a_symbol_of_death/"
],
[
"https://en.wikipedia.org/wiki/The_Seventh_Seal"
],
[
"http://www.theoi.com/i... | ||
6tl30j | why do some exercises really have a noticeable effect on my muscles and others just makes my muscles tired? | I'll try to explain:
Imagine doing bicep curls. After a few sets you're like "man that was a good work out, my arm is super worked!"
But then if you do somethin like arm circles (do those even do anything) for an extended period of time, it just makes your arm tired, but no feeling ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6tl30j/eli5_why_do_some_exercises_really_have_a/ | {
"a_id": [
"dllja96",
"dlljyho"
],
"score": [
8,
2
],
"text": [
"In the first scenario (curls), you're working your muscle near its maximum ability. This causes small tears in the muscle, and your body rebuilds those tears stronger than they were before as a way to adapt to it (get stron... | [] | [] | [
[],
[]
] | |
1ke7q4 | Has an earth year always been 365.25 days? | I remember hearing a very reputable source... a guest peddling a book on Coast to Coast AM... say that several thousand years ago the earth year used to be shorter, closer to 360 days, and at one point a comet came close to the earth and caused the earth to slow down. And evidence of that is all calendars from differen... | askscience | http://www.reddit.com/r/askscience/comments/1ke7q4/has_an_earth_year_always_been_36525_days/ | {
"a_id": [
"cbo0zc1",
"cbo85iy"
],
"score": [
4,
6
],
"text": [
"At no point in human history has the length of the period of the earth going around the sun changed in that manner. That's a backward rationalization trying to explain how ancient 360-day lunar calendars were actually \"corr... | [] | [] | [
[],
[
"http://www.abc.net.au/science/articles/2012/11/28/3642932.htm"
]
] | |
8aeot7 | what makes a password stronger than another? | How is a password that has uppercase and lowercase letters, numbers, and special characters more secure if every character is always a possibility? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8aeot7/eli5_what_makes_a_password_stronger_than_another/ | {
"a_id": [
"dwy2a96",
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"dwy4906",
"dwyaijx",
"dwygoof"
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"score": [
16,
2,
3,
6,
2,
3
],
"text": [
"Because some types of attacks will do what's called a 'dictionary attack' and try dictionary words and thing based on them (apple, Appl... | [] | [] | [
[],
[],
[
"https://xkcd.com/936/"
],
[
"https://xkcd.com/936/"
],
[],
[
"https://pages.nist.gov/800-63-3/sp800-63-3.html"
]
] | |
2gq2hv | Why did a US ship shoot down Iran Air 655? | I understand the ship misidentified the aircraft as an Iranian fighter jet, but why would the US military shoot down an Iranian fighter jet in the first place? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2gq2hv/why_did_a_us_ship_shoot_down_iran_air_655/ | {
"a_id": [
"cklhuou"
],
"score": [
15
],
"text": [
"So, the Iran Air tragedy is rooted in the larger Iran/Iraq conflict. The US, at different times, supported both sides in an effort to produce a politically acceptable victory. But most importantly, the US favored stability, and tried to prevent ... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Operation_Praying_Mantis",
"http://en.wikipedia.org/wiki/USS_Stark_(FFG-31\\)#mediaviewer/File:USS_Stark_-_external_damage_by_exocet.jpg",
"http://en.wikipedia.org/wiki/Korean_Air_Lines_Flight_007"
]
] | |
1tidox | I want to learn about the past 120~ years of European history. | So I'm looking to read about the history of Europe and Russia over the past 120~ year over 4-5 books. I'd like to start with the Russian Revolution, and incorporate The Rise and Fall of the Third Reich, since I already have it. Does /r/askhistorians have any suggestions for what I should read? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1tidox/i_want_to_learn_about_the_past_120_years_of/ | {
"a_id": [
"ce8bbcn"
],
"score": [
2
],
"text": [
"May I suggest the French Revolution as a starting point? For both social and military history. Hitler also refers to it many times in Mein Kampf it played directly into his thinking.\n\nIt was also the starting point for the century that was fill... | [] | [] | [
[
"http://www.anu.edu.au/polsci/marx/classics/manifesto.html"
]
] | |
224xda | Is it actually possible to run across water? | Countless times in movies, tv shows, comic books, etc... I have seen characters with super speed being able to run across water. They have no special footwear, they are just able to run really fast and some how run on top of the water.
What I want to know is if it is actually possible to be running fast enough to act... | askscience | http://www.reddit.com/r/askscience/comments/224xda/is_it_actually_possible_to_run_across_water/ | {
"a_id": [
"cgjervk",
"cgjfw1f"
],
"score": [
5,
3
],
"text": [
"According various [online calculations](_URL_0_) a person would need to run at about 80km/h in order to generate enough thrust against the water. \n\nSmaller animals, like like basilisk lizard , have less mass and a higher p... | [] | [
"https://www.youtube.com/watch?v=t5v2qBBD-gE#t=130"
] | [
[
"http://sciencefocus.com/qa/how-fast-would-i-have-run-run-over-water"
],
[]
] | |
13zle1 | How useful are cryoprotectants in preserving tissue? | I'm interested in cryonics, particularly as used in human longevity or immortality studies, or as a potential cryogenic sleep-state for long space voyages (mainly for sci-fi writing purposes). I've found, through my basic research, that many cryoprotectants are highly toxic, and can severely damage the viability of pre... | askscience | http://www.reddit.com/r/askscience/comments/13zle1/how_useful_are_cryoprotectants_in_preserving/ | {
"a_id": [
"c79gm09"
],
"score": [
3
],
"text": [
"One of the main uses of cryoprotectants is to prevent ice crystals from forming. We're mostly water, so freezing tissue causes the water to form crystals which rips cells apart. \n\nA lot of it depends on what you're using as a cryoprotectant. I ... | [] | [] | [
[]
] | |
2i06ng | how does someone with insomnia continue living? | I just recently watched David Fincher's Fight Club. It made me ask how an insomniac such as the narrator survive without sleep. Everything I've read seems to say sleep is necessary, and thus this seems to be a paradox. Thanks in advance! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2i06ng/eli5how_does_someone_with_insomnia_continue_living/ | {
"a_id": [
"ckxkvpj"
],
"score": [
2
],
"text": [
"From personal experience, You can last atleast 5 days with a 30 minute nap somewhere around day 3-4.\n\nAlso, It's not like Insomniacs never sleep. They just have trouble falling asleep and staying asleep. "
]
} | [] | [] | [
[]
] | |
3f8t5t | how does the ufc get away with paying their fighters so little? | How come the main event fighters on Premeir boxing champions (boxing on free network tv) earn 1 million dollars while the main event fighters on some of the biggest ppv's in ufc history are lucky to break 2 million? How do Floyd mayweather and many pacquiao each earn 100+ million for their fight but for lesnar vs Mir... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3f8t5t/eli5_how_does_the_ufc_get_away_with_paying_their/ | {
"a_id": [
"ctme195"
],
"score": [
3
],
"text": [
"Supply and Demand, to put it simply.\n\nThe public is apparently willing to pay hundreds of millions to watch Mayweather and Pacquiao, and just the same UFC fighters are apparently willing to fight despite not receiving such massive payouts. If,... | [] | [] | [
[]
] | |
e25akg | why does stretching a muscle help it heal faster? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/e25akg/eli5_why_does_stretching_a_muscle_help_it_heal/ | {
"a_id": [
"f8tphv2",
"f8tvcpj"
],
"score": [
12,
3
],
"text": [
"There is no good evidence that shows static stretching does anything useful. Dynamic stretching (which is actually just moving around) is evidence based to be useful.",
"Pretty sure this is a false premise.\n\nWhat make... | [] | [] | [
[],
[]
] | ||
lbejo | Speed of light VS Age of the universe? | The universe is some 13.4 billions years old which lead me to believe that it is 13.4 billion light years in diameter however this is not true. Best guesses suggest the universe is 150 billion light years in diameter. My assumption was that nothing could reach the speed of light (all recent CERN"discoveries" aside) yet... | askscience | http://www.reddit.com/r/askscience/comments/lbejo/speed_of_light_vs_age_of_the_universe/ | {
"a_id": [
"c2rb74v",
"c2rc5se",
"c2rb74v",
"c2rc5se"
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"score": [
5,
4,
5,
4
],
"text": [
"This has been asked a bunch of times, check these out\n\n[_URL_0_](_URL_0_)\n\n[_URL_3_](_URL_3_)\n\n[_URL_1_](_URL_1_)\n\n[_URL_2_](_URL_2_)",
"simply put, you know how the un... | [] | [] | [
[
"http://www.reddit.com/r/askscience/comments/kmmtg/universe_expansion_faster_then_light_how/",
"http://curious.astro.cornell.edu/question.php?number=575",
"http://www.reddit.com/r/askscience/comments/fjwkh/why_exactly_can_nothing_go_faster_than_the_speed/",
"http://www.reddit.com/r/askscience/comm... | |
2lqcnn | if all the baby boomers start pulling out their money from rrsp/rifs and "the market" in general, will the stock market suffer? | My Dad the pessimist seems to believe we are doomed, and that having our savings in RRSPs and mutual funds will only result in heart ache. Seeing that not much else will even match inflation, how is one suppose to reach financial independence? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2lqcnn/eli5_if_all_the_baby_boomers_start_pulling_out/ | {
"a_id": [
"clx5u7c"
],
"score": [
2
],
"text": [
"The question is not if... it is when. \n\nBaby Boomers are not going to die and leave those accounts to the children, they will be spent on vacations, medical expenses, their kids/grandkids college educations!"
]
} | [] | [] | [
[]
] | |
glw7w | The evolution of sleep (questions inside) | A few questions here actually:
1) What is the evolutionary advantage to sleep? It seems like an organism that does not need sleep but functions in the same way would be better off. Is it purely that sleep enables so much more powerful mechanisms?
2) Do we know how long ago our ancestors started sleeping? I'm assuming... | askscience | http://www.reddit.com/r/askscience/comments/glw7w/the_evolution_of_sleep_questions_inside/ | {
"a_id": [
"c1oi5gm",
"c1oi6xa"
],
"score": [
5,
6
],
"text": [
"*1) What is the evolutionary advantage to sleep? It seems like an organism that does not need sleep but functions in the same way would be better off. Is it purely that sleep enables so much more powerful mechanisms?*\n\nRem... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Bacterial_circadian_rhythms"
],
[]
] | |
1zxm6b | why does a laptop's battery life decrease over time? | For example: You buy a laptop with a marked "5 hour battery life" and at first its battery lasts that long, but after a month or two of use and re-charging, its battery ends up only lasting about 4 hours. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1zxm6b/eli5_why_does_a_laptops_battery_life_decrease/ | {
"a_id": [
"cfxvv7v"
],
"score": [
5
],
"text": [
"Most (if not all) modern batteries in laptops and electronics are lithium-ion (li-ion) based.\n\nWhen you charge it, an electric current carries lithium ions from a lithium cobalt oxide cathode to a graphite anode.\n\nWhen you turn on the device,... | [] | [] | [
[]
] | |
2ihekz | Are some liquids heavier than others? | How do weights of liquids even work? Can liquids have different densitys? Wouldn't they count as "foam" if they have a low density? Thanks for reading, I'm looking forward to answers! | askscience | http://www.reddit.com/r/askscience/comments/2ihekz/are_some_liquids_heavier_than_others/ | {
"a_id": [
"cl29xjk"
],
"score": [
10
],
"text": [
"Indeed they do. Liquid water has a density of 1000kg/m^3, liquid mercury has a density of around 13500kg/m^3, and liquid steel is around 8000kg/m^3. The weight of liquids works no differently than solids. The only difference is that they flow an... | [] | [] | [
[]
] | |
5txi9u | Why is it that mass transportation in America was never fully developed? In addition, why did America grow such a large car culture? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5txi9u/why_is_it_that_mass_transportation_in_america_was/ | {
"a_id": [
"ddq15u3",
"ddq78ck",
"ddqt0se"
],
"score": [
15,
134,
14
],
"text": [
"I hope this is OK as a follow-up question. I've seen it claimed that there were cases of the automobile industry using tactics such as buying land to prevent the development of (particularly urban) ... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Arroyo_Seco_Parkway",
"http://www.greatthirdrail.org/images/1937-07-01_map.jpg",
"https://www.theguardian.com/cities/2015/may/05/amsterdam-bicycle-capital-world-transport-cycling-kindermoord"
],
[
"http://www.sandiegouniontribune.com/sdut-californias-bullet... | ||
5s6a9c | why do we sometimes feel sorry (or emotional) for inanimate objects? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5s6a9c/eli5_why_do_we_sometimes_feel_sorry_or_emotional/ | {
"a_id": [
"ddcps0j",
"ddcq3ry"
],
"score": [
2,
2
],
"text": [
"I think it's because we tend to personify things. And that happens when we're kids, thru pretend play. And toy story doesn't help. I remember when I was little thinking my toys were alive when I wasn't around. Damn! If I had... | [] | [] | [
[],
[]
] | ||
66e5ry | How does a source of light, with finite surface area, send light in infinite directions? | The sun for example (albeit very large) will send light in all directions even though it's only got a limited about of surface (surface is probably the wrong word) to send light from. How? | askscience | https://www.reddit.com/r/askscience/comments/66e5ry/how_does_a_source_of_light_with_finite_surface/ | {
"a_id": [
"dghxcdn"
],
"score": [
22
],
"text": [
"If you go far enough away, it will no longer be continuous, and you'll only detect the occasional photon. If you set up a large detection screen, there will be finite distance between the locations where photons are detected."
]
} | [] | [] | [
[]
] | |
5gtniv | why aren't the scopes of sniper rifles on the side any more? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5gtniv/eli5_why_arent_the_scopes_of_sniper_rifles_on_the/ | {
"a_id": [
"dauy47y"
],
"score": [
2
],
"text": [
"This was done because those guns fed from stripper clips, which required loading straight down from the top. Well, you can't put a scope in the way of your bullets or it's not much of a rifle anymore. \n\n\nWhen countries switched to magazine fee... | [] | [] | [
[]
] | ||
4xmk7x | how do birds know not to fly in the path of a kite and its strings? | Recently, I started to fly kites around the delta in California's Bay Area since I live about 7 minutes away from the Martinez Shoreline Park. While I was flying my delta stunt kite today, I saw a flock of Canadian geese flying straight towards the path of my kite. But before I started to take evasive maneuvers, the ge... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4xmk7x/eli5_how_do_birds_know_not_to_fly_in_the_path_of/ | {
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"text": [
"No, but they have hearing to detect the buzzing of the wind in the lines. They also have excellent collision avoidance hardware in their brains and they use this sort of sound cue... | [] | [] | [
[],
[
"https://www.google.com/search?q=birds+fly+into+strings&oq=bird&aqs=chrome.0.69i59l2j69i57j69i59j69i60j69i59.1459j0j4&sourceid=chrome&ie=UTF-8#safe=off&q=birds+fly+into+kite+strings"
],
[
"https://www.youtube.com/watch?v=s3Y2q0kLkAk&t=19s",
"https://www.youtube.com/wa... | |
6nmj8m | what is actually happening when, after a day in the ocean or riding rollercoasters, the body will almost simulate the feelings when you're staying still? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6nmj8m/eli5_what_is_actually_happening_when_after_a_day/ | {
"a_id": [
"dkalbg0"
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"score": [
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"text": [
"There's a few reasons why this happens, and it's actually been a source of contention for centuries now. This is part of where the term \"Sea Legs\" comes from.\n\nWhen you are on a boat, or a roller coaster or other similar behaviours, your bra... | [] | [] | [
[]
] | ||
5wef2m | a lot of celebrities that aren't nominated for anything still get to go to the oscars. how do they decide of the non-nominees who goes and who doesn't? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5wef2m/eli5_a_lot_of_celebrities_that_arent_nominated/ | {
"a_id": [
"de9hi2e"
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"text": [
"Last year's winners (for the big categories) are invited to present their award this year. The Academy invites other A-list people to present or sit in the audience for ratings and prestige, especially if they had a movie this year. \n\nStudios g... | [] | [] | [
[]
] | ||
18degp | why do we include "indigo" in the rainbow? | I have always believed that "indigo" was included in the rainbow simply to make the acronym Roy G. Biv work (which I always dismissed as kind of a lame reason). However, I have been noticing that indigo is grouped in with the other 6 main colors in other places as well (e.g. chakras in Hinduism). What makes indigo so s... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/18degp/eli5_why_do_we_include_indigo_in_the_rainbow/ | {
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"text": [
" > I have always believed that \"indigo\" was included in the rainbow simply to make the acronym Roy G. Biv work\n\nIt's the other way round - the acronym comes from the colour names.\n\nWe have Newton to thank for the name... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Rainbow#Number_of_colours_in_spectrum_or_rainbow"
],
[
"http://www.reddit.com/r/explainlikeimfive/comments/18c49q/eli5_what_exactly_is_indigo/"
]
] | |
8q3odk | Why does the Double Jeopardy Clause exist? What was the Founding Fathers' reasoning for not re-trying someone when new evidence arose? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8q3odk/why_does_the_double_jeopardy_clause_exist_what/ | {
"a_id": [
"e0h5h7w"
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"score": [
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"text": [
"The reasoning for including it in US law is discussed in many modern cases. To use one example (**Green v The United States 355 US 184 (1957)**)\n\n > _\"The State with all its resources and power should not be allowed to make repeated attempts ... | [] | [] | [
[
"http://scholarship.law.wm.edu/wmborj/vol14/iss1/8",
"https://history.hanover.edu/texts/masslib.html",
"https://books.google.com.au/books?id=ux1fkfIFR5EC&pg=PA323#v=onepage&q&f=false",
"https://books.google.com.au/books?id=4D0ICwAAQBAJ&pg=PT353&lpg=PT353#v=onepage&q&f=f... | ||
2zylgy | why do certain songs turn us on? | A few friends and I were discussing how certain songs really get us turned on, especially when with our SOs. Why is this? Is there any purpose for it? Why are certain songs used primarily FOR sex music? (Like the Fifty Shades of Grey soundtrack)
Edited because wording | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2zylgy/eli5_why_do_certain_songs_turn_us_on/ | {
"a_id": [
"cpngx7t"
],
"score": [
2
],
"text": [
"You do know that being \"turned on\" means that you're horny, right?"
]
} | [] | [] | [
[]
] | |
23rmim | Is the Periodic Table the best design we have or just the most common? | I'm not sure how to phrase this question so please let me elaborate with an example.
In IT there's an often stated opinion that we only use QWERTY keyboards because everyone is used to them (_URL_0_) despite the fact that potentially more efficient / easier to use designs exist.
Can the same argument be applied to th... | askscience | http://www.reddit.com/r/askscience/comments/23rmim/is_the_periodic_table_the_best_design_we_have_or/ | {
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"text": [
"The periodic table is organized using the number of protons an element has (which determines the element) and also by electron orbitals. This is why elements in the same group (column) behave chemical... | [] | [
"http://www.bbc.co.uk/news/technology-10925456"
] | [
[],
[],
[
"http://scienceblogs.com/sciencepunk/files/2012/08/periodic-table.png"
]
] | |
cy2ykq | how do movie productions supply "era specific" props? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cy2ykq/eli5_how_do_movie_productions_supply_era_specific/ | {
"a_id": [
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"text": [
"Typically they outsource. They don't own all the props, other companies make/collect and loan them to them for the production, or they hire another company for set construction if it needs to be specific. Some bigger companies have in house prop ... | [] | [] | [
[]
] | ||
1q6q45 | Why does a magnet fall slowly through a conductive pipe? | I know that as the magnet falls through the pipe, the magnetic field is changing so a current is induced to create an induced magnetic field to resist the change in magnetic flux.
But, what force is acting on the magnet to make it slow down? If you draw a free body diagram of it, the magnet would have the gravitation... | askscience | http://www.reddit.com/r/askscience/comments/1q6q45/why_does_a_magnet_fall_slowly_through_a/ | {
"a_id": [
"cd9r1op",
"cd9rq1k"
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"score": [
13,
3
],
"text": [
"Wikipedia:\nAn eddy current (also known as Foucault current) is an electrical phenomenon discovered by French physicist Léon Foucault in 1851. It is caused when a conductor is exposed to a changing magnetic field due to rel... | [] | [] | [
[],
[]
] | |
2x4jq8 | how does right and left handiness work? and why can't i do things as well with my off hand? | What goes into somebody becoming right- or left-handed (or ambidextrous)/ how does it happen? And why can't I control my off hand (left) as well as my right? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2x4jq8/eli5_how_does_right_and_left_handiness_work_and/ | {
"a_id": [
"cowsxqv",
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"score": [
21,
3
],
"text": [
"Increased motor dexterity isn't free, it takes up real estate in the brain. And since you, and in particular your primitive ancestors, seldom needed to have it both hands, you are better off using that brain space just onc... | [] | [] | [
[],
[]
] |
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