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 |
|---|---|---|---|---|---|---|---|---|---|
20gyd5 | Is there a limit to the amount of computing power we can have? | askscience | http://www.reddit.com/r/askscience/comments/20gyd5/is_there_a_limit_to_the_amount_of_computing_power/ | {
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"Yes depending on space, resolution and time that you use to compute.\n\nYou can approximate the number of electrons in the visible universe and still make up a maze large enough to be unsolvable if eve... | [] | [] | [
[],
[],
[
"http://arxiv.org/abs/quant-ph/9908043"
]
] | ||
fj0gl8 | Soap interacts with lipids. My cells are held together by lipids. How come that if I wash my hands with soap my body doesn't dissolve? | Thought about it because of some Corona virus illustration I saw on Reddit about how washing hands with soap rips apart the virus and thus helps. | askscience | https://www.reddit.com/r/askscience/comments/fj0gl8/soap_interacts_with_lipids_my_cells_are_held/ | {
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"score": [
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"text": [
"Your skin is pretty much an impenetrable barrier of dead tissue. ... | [] | [] | [
[],
[],
[],
[],
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[]
] | |
f58prc | why and how do car clutches work? | I'll appreciate any links to further reading. Currently going through its Wikipedia page but I'm not an engineer so hard for me to take so much info at once. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f58prc/eli5_why_and_how_do_car_clutches_work/ | {
"a_id": [
"fhx6px1",
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"score": [
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"text": [
"I would suggest you to look on YouTube as there are loads of videos explaining it in detail and showing actual clutches and gearboxes in action.",
"The US Auto Industry channel presents really good videos; look up \"Spin... | [] | [] | [
[],
[]
] | |
augy76 | Density of star light? | How dense are the photons put out by an average star? Is there a distance a star would need to be for it to be unlikely its photons would find an observer? Or could it be assumed that in the life of a star it's photons would hit everything in the line of site of the star?
| askscience | https://www.reddit.com/r/askscience/comments/augy76/density_of_star_light/ | {
"a_id": [
"eh8n7e5"
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"score": [
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"text": [
"Stellar output ~ 10^26 Watts\n\nSurface area ~ 10^18 m^2\n\n(Rough figures, a star a bit smaller and lighter than the Sun.)\n\nDistance travelled by light in 1 second: 3 x 10^8 m\n\nEnergy in 1 second of emission from 1 square metre of the star's... | [] | [] | [
[]
] | |
1f2ofb | the war on drugs and the stigma surrounding it | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1f2ofb/eli5_the_war_on_drugs_and_the_stigma_surrounding/ | {
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"score": [
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"text": [
"Little Bobby wanted to eat some chewing gum but the school didn't allow it. The school placed a rule that anyone who has chewing gum will go to detention. \n\nThe school did this because chewing gum was... | [] | [] | [
[],
[],
[
"http://www.youtube.com/watch?v=O_LHuII-jYQ"
]
] | ||
2o17dv | Why is NaCl used in the kitchen instead of any other salt? | askscience | http://www.reddit.com/r/askscience/comments/2o17dv/why_is_nacl_used_in_the_kitchen_instead_of_any/ | {
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"score": [
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"text": [
"It basically comes down to availability. Historically most salt ... | [] | [] | [
[],
[],
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"http://ri.search.yahoo.com/_ylt=AwrSbjTByH1Ud.cACO45ByI5;_ylu=X3oDMTE0aDVhMXNpBHNlYwNzcgRwb3MDMTMEY29sbwNncTEEdnRpZANNT0NBMDFfMQ--/RV=2/RE=1417558337/RO=10/RU=http%3a%2f%2fwww.eyrie.org%2f~eagle%2freviews%2fbooks%2f0-8027-1373-4.html/RK=0/RS=GIc9XG4qI33flgoQnl_Wc2QCla8-"
],
[],
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"http:... | ||
2rkuvn | why do i still need glasses when looking in a mirror? | I'm very nearsighted. If I'm using a mirror and look at something far away in the background, without my glasses, it is just as blurry as if I was looking at it straight on. But since its reflected off the mirror, closer to me, shouldn't everything be clear? Wearing glasses improved the distance I can see in a reflecti... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2rkuvn/eli5_why_do_i_still_need_glasses_when_looking_in/ | {
"a_id": [
"cngsuro",
"cngsv67",
"cngsxya"
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"score": [
3,
2,
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],
"text": [
"A common science-y question. The short answer is that you may be looking at a physical object (the mirror) that is within your visible distance, but the thing you're trying to look at in the mirror is ... | [] | [] | [
[
"http://www.thenakedscientists.com/HTML/questions/qotw/question/3233/"
],
[],
[
"http://i.imgur.com/svEGc0z.png"
]
] | |
43zgfp | why won't other countries adopt the "more successful" / "better" educational programs of other countries, e.g. finland? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/43zgfp/eli5_why_wont_other_countries_adopt_the_more/ | {
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"text": [
"There are many, many known factors that go into educational success. Some of them are quite unrelated to the educational system, such a... | [] | [] | [
[],
[],
[],
[
"https://m.youtube.com/watch?v=Bx4pN-aiofw"
],
[],
[]
] | ||
a44v01 | is the sugar content of any food item dictated by the amount of carbs present in it? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a44v01/eli5_is_the_sugar_content_of_any_food_item/ | {
"a_id": [
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"text": [
"Other way around. \nSugar is only one kind of carbohydrate.\nThere also carbohydrates that may be listed but not fully metabolized like sugar alcohols. There are also the soluble and insoluble fibers th... | [] | [] | [
[],
[],
[]
] | ||
df9yxp | What isotope of carbon do burning fossil fuels put into the lower atmosphere? | From Wikipedia:
"Therefore, the carbon from fossil fuels that is returned to the atmosphere through combustion is depleted in both 13C and 14C compared to atmospheric carbon dioxide."
If it's depleted of 13 and 14 then what isotope of carbon are fossil fuels putting into our air?
_URL_0_
Thanks! | askscience | https://www.reddit.com/r/askscience/comments/df9yxp/what_isotope_of_carbon_do_burning_fossil_fuels/ | {
"a_id": [
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"score": [
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],
"text": [
"Mostly carbon-12. The Wikipedia article you provided explains this nicely, you just need to give it a reread. :)",
"^(12)C is, by far, the most common isotope of carbon and it's what is being expelled into the atmosphere... | [] | [
"https://en.m.wikipedia.org/wiki/Suess_effect"
] | [
[],
[]
] | |
5yebuh | why do restaurants serve small items on large plates? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5yebuh/eli5_why_do_restaurants_serve_small_items_on/ | {
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"text": [
"Some people go to a restaurant because they're terribly hungry and need to eat A LOT of food fast.\n\nBut, typically, going to a restaurant is a social event, you're going with a... | [] | [] | [
[],
[],
[],
[]
] | ||
b0nh6z | Why does Gabapentin work for anxiety disorders? | [deleted] | askscience | https://www.reddit.com/r/askscience/comments/b0nh6z/why_does_gabapentin_work_for_anxiety_disorders/ | {
"a_id": [
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"text": [
"We don't know for sure, and there's actually not a ton of strong evidence showing it works well in any of those conditions. For bipolar, gabapentin inhibits the function of the the CaV1.2 voltage-gated calcium receptor, which seems to be overexp... | [] | [] | [
[
"https://www.reuters.com/article/us-pfizer-neurontin-settlement/pfizer-to-pay-325-million-in-neurontin-settlement-idUSKBN0ED1IS20140602"
]
] | |
6zu5ba | Did centurions have bronze swords? And if yes why? Was bronze considered superior to steel during clasical times? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6zu5ba/did_centurions_have_bronze_swords_and_if_yes_why/ | {
"a_id": [
"dmyt88a"
],
"score": [
3
],
"text": [
"I have not heard anything about the common use of bronze in Roman weapons, Roman swords were made of iron. Is here a source you are building off of for this?"
]
} | [] | [] | [
[]
] | ||
5vp3ns | why is chinaman considered racist while englishman, frenchman, scottsman, etc are not? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5vp3ns/eli5_why_is_chinaman_considered_racist_while/ | {
"a_id": [
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"text": [
"Context and history. Words pick up a lot of their meaning form the way they're used. Most racist terms didn't start that way, but being used in a derogatory way has pretty well tainted them and whatever the old meaning was ... | [] | [] | [
[],
[]
] | |
1qympn | My home town had a lot of landmarks related to Native Americans. What tribes inhabited the area? | Surrounding Owings Mills, Maryland, there is the historic Fort Garrison and old paths like Cockeys Mill Rd. What tribes could have been found in northwest Baltimore County? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1qympn/my_home_town_had_a_lot_of_landmarks_related_to/ | {
"a_id": [
"cdhxjsa"
],
"score": [
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"text": [
"At the time of Old World contact, the region of Maryland west of Chesapeake Bay and north of the Potomac River were part of the Piscataway paramount chiefdom (sometimes referred to as the Conoy), which had many similarities with the better known ... | [] | [] | [
[
"http://msa.maryland.gov/megafile/msa/speccol/sc2900/sc2908/000001/000003/pdf/am3--403.pdf",
"https://www.google.com/search?tbo=p&tbm=bks&q=subject:%22Conoy+Indians%22&source=gbs_ge_summary_r&cad=0",
"http://books.google.com/books?id=PHXIeG6JyKEC&pg=PA246&dq=%22conoy%22&hl=... | |
117gqp | Are there recorded instances of Hannibal using his elephants to coerce tribes into following him? | Ever since reading about Hannibal's crossing from Iberia into the Italian peninsula (in the Second Punic War) I have been curious both about the role of elephants in his campaign as well as Hannibal's success with the local tribes. I know that Iberia during the time was under the Carthaginian sphere of influence, but a... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/117gqp/are_there_recorded_instances_of_hannibal_using/ | {
"a_id": [
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"score": [
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"text": [
"Hannibal and his father Hamilcar used elephants a lot in Iberia. They were just another tool in their assortment of tactics though. Iberia was subjugated by taking up the roles of defenders to certain weak tribes and use this \"defense\" as a cas... | [] | [] | [
[]
] | |
66eyj7 | What happened to the Puritans of New England? | From what I can tell, most use of the term "Puritan" dies off after the late 1600s. But what about the 1700s and 1800s? What role did the Puritans play in the American Revolution? You hear about the role Quakers played in the Revolution, but you hear practically nothing about Puritans. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/66eyj7/what_happened_to_the_puritans_of_new_england/ | {
"a_id": [
"dgi71a9"
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"score": [
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"text": [
"\"Puritan\" was a term of opprobrium, and no one actually used it to describe themselves, except in an ironic fashion. For example, William Bradshaw's [*English Puritanisme*](_URL_0_) (1605) was written as a defence of the views associated with ... | [] | [] | [
[
"http://quintapress.macmate.me/PDF_Books/Bradshaw_English_Puritanism_v1.pdf",
"https://en.wikipedia.org/wiki/First_Great_Awakening",
"https://en.wikipedia.org/wiki/Toleration_Act_1689"
]
] | |
3xaej9 | how is the enormous cost of advertising worth the investment? | And how do business calculate some estimated return based upon a certain amount of advertising? I, like most other people probably, don't buy stuff just because I saw some commercial or Youtube ad. I know it's good to make people aware of your product, but the insane amount spent on it confuses me. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3xaej9/eli5_how_is_the_enormous_cost_of_advertising/ | {
"a_id": [
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"score": [
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"text": [
" > I, like most other people probably, don't buy stuff just because I saw some commercial or Youtube ad.\n\nYes, you do. This is the most direct ELI5 answer - advertising works even when people don't think it works. You may not consciously be awa... | [] | [] | [
[]
] | |
3p7thz | why does our voice get croaky? | EXTRA QUESTION: Why does it sound deeper when it's croaky? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3p7thz/eli5_why_does_our_voice_get_croaky/ | {
"a_id": [
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],
"score": [
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],
"text": [
"There are lots of reasons your voice can be croaky. \n\nLet's start with a review: Your voice comes from your vocal folds. Vocal folds are [bands of muscle in your larynx.](_URL_0_) (Yes, yes, they look like a vagina, pay attention!) Air from yo... | [] | [] | [
[
"http://voicedoctor.net/sites/default/files/2011-09-16_vid7_rig_str-002304-stmid.jpg"
]
] | |
1hmcuf | What is actually happening when someone's organs start to "shut down"? | askscience | http://www.reddit.com/r/askscience/comments/1hmcuf/what_is_actually_happening_when_someones_organs/ | {
"a_id": [
"cavv0m2"
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"score": [
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"text": [
"Do you mean what happens when someone is dying and his/her organs shut down one by one? I'm sorry if this is a personal question.\n\nThe shutting down of organ systems during the dying process (whether by natural causes or not) is a cascading eff... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Regulatory_T_cells"
]
] | ||
1k7ke3 | Has the Nobel Prize ever been awarded for something that later turned out to be completely bogus? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1k7ke3/has_the_nobel_prize_ever_been_awarded_for/ | {
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330,
171,
122,
312,
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27,
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37,
85,
25,
13,
... | [] | [] | [
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"http://www.nobelprize.org/nobel_prizes/medicine/laureates/1926/fibiger-bio.html",
"http://de.reddit.com/r/AskHistorians/comments/1k7ke3/has_the_nobel_prize_ever_been_awarded_for/cbmm084"
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[],
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"http://en.wikipedia.org/wiki/Lobotomy"
],
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"http://www.nobelprize.org/nobel_prizes/physic... | ||
16wioj | How does snow temperature relate to open air temperature? | in other words: Is snow warmer than the outside temperature since snow is an insulator? | askscience | http://www.reddit.com/r/askscience/comments/16wioj/how_does_snow_temperature_relate_to_open_air/ | {
"a_id": [
"c803gn8"
],
"score": [
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"text": [
"It really depends on the outside temp, kind of snow, nearby sources of heat. Generally the snow will be equal to outside temp, though it will lag a bit due to the insulating properties. Fresh fallen snow will be the same temp as surrounding air... | [] | [] | [
[]
] | |
u4yhv | Why does NASA digitally colorize photos from the Hubble and the Mars Rovers? | [This thread](_URL_0_) brought up the question, so I thought I would as the experts. | askscience | http://www.reddit.com/r/askscience/comments/u4yhv/why_does_nasa_digitally_colorize_photos_from_the/ | {
"a_id": [
"c4seeud"
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"score": [
6
],
"text": [
"Images, particularly from the Hubble, are frequently taken in multiple frequency bands in order to obtain more information about the target object by comparing outputs at different frequencies. You can assign a colour to the each frequency band a... | [] | [
"http://www.reddit.com/r/pics/comments/u4ea3/mars_rover_snaps_a_stunning_photo/"
] | [
[]
] | |
1ccun2 | Before 1960, who had the better record on civil rights, Republicans or Democrats? What is the history of civil rights before 1960, and the national political reaction to it? | I was reading a news article called "[The Real Story of Baseball's Integration That You Won't See in *42*](_URL_1_)". And it said:
> In 1960, [Jackie] Robinson supported Hubert Humphrey, the liberal Senator and civil rights stalwart from Minnesota, in his campaign for president. When John Kennedy won the Democratic ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ccun2/before_1960_who_had_the_better_record_on_civil/ | {
"a_id": [
"c9fcw0y"
],
"score": [
8
],
"text": [
"It's a muddled history- things didn't used to be as super cut and dry as they are now. There were Progressive Republicans and Conservative Republicans, Progressive Democrats and Conservative Democrats. and people usually pinpoint the split betwee... | [] | [
"http://en.wikipedia.org/wiki/Executive_Order_9981",
"http://www.theatlantic.com/entertainment/archive/2013/04/the-real-story-of-baseballs-integration-that-you-wont-see-in-i-42-i/274886/",
"http://en.wikipedia.org/wiki/Southern_strategy",
"http://en.wikipedia.org/wiki/Civil_Rights_Address"
] | [
[]
] | |
3w9yfb | What was the status of Royalists (Legitimists) in Napoleonic France? Did they think he was an usurper or did they begrudgingly accept him contra Revolutionary France? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3w9yfb/what_was_the_status_of_royalists_legitimists_in/ | {
"a_id": [
"cxwc5z5"
],
"score": [
2
],
"text": [
"I'm sorry, but I don't think you mean specifically \"Legitimists\" (unless you're here referreing to Napoleon III). As a movement, legitimism appeared around 1830 with the Louis-Philippe Restauration.\n\nIf you're talking about the Royalists as a... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Conspiration_des_poignards",
"https://fr.wikipedia.org/wiki/Chouans",
"https://en.wikipedia.org/wiki/War_in_the_Vend%C3%A9e#Background",
"https://en.wikipedia.org/wiki/Plot_of_the_rue_Saint-Nicaise"
]
] | ||
c0tle2 | how do record labels screw certain artists/bands (“360 deals”) and push others to success? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/c0tle2/eli5_how_do_record_labels_screw_certain/ | {
"a_id": [
"er7l3fb"
],
"score": [
5
],
"text": [
"Record labels are there to make money - they help bands by providing capital to afford costs like recording, promotion and touring (that most bands cannot afford outright) and knowledge to do this well (the hired tour managers and marketing peopl... | [] | [] | [
[]
] | ||
7ru2ij | How versed in Christian dogma was the average medieval peasant? | Given the widespread illiteracy and thus unable to read the bible, their only source being the parish priest. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7ru2ij/how_versed_in_christian_dogma_was_the_average/ | {
"a_id": [
"dt04qih"
],
"score": [
6
],
"text": [
"You are posing a question which medievalists themselves can’t answer with certainty. There are two schools of thought. One, long the orthodox position until the later decades of the 20th century, holds that medieval people, especially the peasant... | [] | [] | [
[]
] | |
7ecd8i | why is it harder to be happy as we grow older? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7ecd8i/eli5_why_is_it_harder_to_be_happy_as_we_grow_older/ | {
"a_id": [
"dq3z05h",
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"score": [
2,
2,
2
],
"text": [
"Its most likely because you have more responsibilities as you grow. The fun you has as a child was an innocence of care, you did stuff without having those thoughts in the back of your head like: oh man... | [] | [] | [
[],
[],
[]
] | ||
wy87y | why people care/get annoyed at poor grammar | It's the internet, not an English paper or whatever, so why does it tend to annoy people? It doesn't really bother me, as long as it's understandable I don't mind it.
Note - I'm not talking about those sentences that are impossible to read without correct punctuation, I'm talking mainly about spelling mistakes and peo... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/wy87y/eli5_why_people_careget_annoyed_at_poor_grammar/ | {
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"score": [
2,
25,
10,
2,
5
],
"text": [
"My theory is that if people type like that they won't be able to understand the correct way, and over time people will just get dumber.",
"As someone ob... | [] | [] | [
[],
[],
[],
[],
[]
] | |
5t41g8 | how does freezing water simply make ice while rain freezes and becomes snow, which has completely different properties despite being the same thing? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5t41g8/eli5_how_does_freezing_water_simply_make_ice/ | {
"a_id": [
"ddjyka0",
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"score": [
6,
6
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"text": [
"This happens because when a large body of water (something bigger than a snow flake) freezes, it has a bunch of other water molecules to attach to. This allows the ice to form a really big piece.\n\nSnow forms from tiny drop... | [] | [] | [
[],
[]
] | ||
46xxs6 | Does NASA or any other space organisation have satellites orbiting other planets? if not, why not? | askscience | https://www.reddit.com/r/askscience/comments/46xxs6/does_nasa_or_any_other_space_organisation_have/ | {
"a_id": [
"d08pfwx",
"d08yhil"
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"score": [
14,
12
],
"text": [
"There are scientific probes orbiting Mars, Saturn, and Mercury.",
"Absolutely - [here's](_URL_0_) a list on Wikipedia of all spacecraft that ever orbited planets other than Earth. Perhaps the most notable one today is ... | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/List_of_extraterrestrial_orbiters"
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df9crg | Would your average Mexican have noticed a big difference in their lives under the First Mexican Empire versus their lives under the Spanish Empire? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/df9crg/would_your_average_mexican_have_noticed_a_big/ | {
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"Sorry, but we have removed your response, as we expect answers in this subreddit to be [in-depth and comprehensive](_URL_3_), and to demonstrate a [familiarity](_URL_4_) with the [current, academic understanding](_URL_1_) of the topic at hand. Be... | [] | [] | [
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4kxj4f | if people in the us are largely unhappy with the dem/repub presidential candidates why aren't candidates from the other parties considered or talked about? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4kxj4f/eli5_if_people_in_the_us_are_largely_unhappy_with/ | {
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"I think it's largely because non Rep/Dem candidates don't really stand a chance, and aren't terribly interesting to an overall, media w... | [] | [] | [
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1i8w21 | On stomach bacteria | The symbiotic relationship between us and the bacteria in our stomachs has always fascinated me. I know that, at a certain stage in utero, some bacteria flows from the mother to the offspring, but I had a few questions regarding that process and the process by which this relationship developed. What is the current stat... | askscience | http://www.reddit.com/r/askscience/comments/1i8w21/on_stomach_bacteria/ | {
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"text": [
"The first thing to remember is that not that many bacteria can survive in the actual stomach, there isn't a large community in the *stomach*. The microbiota that you hear about reside in your large/small intestine. \n\nThe other thing, bacteria ... | [] | [] | [
[]
] | |
bm5nxm | Are highly metallic asteroids attracted to the earth's poles? | askscience | https://www.reddit.com/r/askscience/comments/bm5nxm/are_highly_metallic_asteroids_attracted_to_the/ | {
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"The magnetic field of Earth is relatively weak and the content of ferromagnetic materials in asteroids (not all metals are ferromagnetic) is small. Meanwhile asteroids are fast and don't spend much time near Earth before a possible impact. You wo... | [] | [] | [
[]
] | ||
mf4l1 | Why do fingernails and toenails absorb dyes? | My brother decided to put toenail clippings in a bottle of powerade once, and a couple of days later the (purple) powerade was completely clear, and his toenails absorbed all of the dye. What would cause the dye to be soaked into them like that? | askscience | http://www.reddit.com/r/askscience/comments/mf4l1/why_do_fingernails_and_toenails_absorb_dyes/ | {
"a_id": [
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"text": [
"Finger nails, and nails in general, as it applies to animals as well, are composed of [keratin](_URL_0_), a porous material, much like a sponge.",
"Finger nails, and nails in general, as it applies to animals as well, ar... | [] | [] | [
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"http://en.wikipedia.org/wiki/Keratin"
],
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3h2zhn | why don't the billionaires from the giving pledge just give up half of their money now rather then wait till they're dead? | I guess the idea that sparked the question was the fact that we'll have to wait till they die. And that can take a really long time till we see the money be used for world-wide philanthropy. As morbid as that might seem, I truly mean it in the best way possible. Not to offend. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3h2zhn/eli5_why_dont_the_billionaires_from_the_giving/ | {
"a_id": [
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"text": [
"Because if they keep it now and use it in their various enterprises they will have more money to give when they die. "
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[]
] | |
p23xr | Why do your lungs get sharp pains when you go running in colder (possibly drier) weather? | I've lived in Florida most of my life and I noticed that when I run in cold weather (it is also drier) I experience sharp pains in my lungs which I do not experience when running in warmer, more humid weather. I have heard others with this complaint and have been told that it does not affect everyone. I have also bee... | askscience | http://www.reddit.com/r/askscience/comments/p23xr/why_do_your_lungs_get_sharp_pains_when_you_go/ | {
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"It depends where the pains are, and how long you've been running. Cold weather can induce asthma, and also causes the mucociliary function of the respiratory tract to decrease. Pain can be a sign of vaso occlusion (if the pa... | [] | [] | [
[],
[]
] | |
pubzz | If the parasympathetic nervous system is what causes an erection, why do we (men) get tired after an orgasm? | Assuming an orgasm is also a function of the PSNS, I would think that after an orgasm is achieved that the vagal tone on the body will start to decrease, and would therefore start to see a greater percentage of sympathetic innervation by comparison. But instead, I just feel like passing out even if I wasn't the one do... | askscience | http://www.reddit.com/r/askscience/comments/pubzz/if_the_parasympathetic_nervous_system_is_what/ | {
"a_id": [
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"The orgasm is not a function of the parasympathetic system. In fact you require sympathetic drive to ejaculate. It is one of the rare instances of the parasympathetic and sympathetic nervous systems working together in the same organ.\n\nAlthough... | [] | [] | [
[]
] | |
50ik0o | is all starlight white? if the sun was a blue star instead of a yellow one would the light be any different to us on earth? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/50ik0o/eli5_is_all_starlight_white_if_the_sun_was_a_blue/ | {
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"White light is just what you see when all frequencies on the visible spectrum are there. A hotter star will emit more red light than a... | [] | [] | [
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"https://upload.wikimedia.org/wikipedia/commons/5/54/Sun_white.jpg"
],
[],
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"http://solar-center.stanford.edu/SID/activities/GreenSun.html"
],
[],
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21yucy | if heat comes from rays, what is coldness? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/21yucy/eli5_if_heat_comes_from_rays_what_is_coldness/ | {
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"Coldness is really nothingness. It doesn't exist. \"Coldness\" is just the lack of energy, aka the lack of heat.",
"Heat doesn't come from rays, altough heat can be transmitted by rays.\n\nTemperature is the average ener... | [] | [] | [
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13yf21 | In your era of expertise, what are the prospects for a deserting soldier? How difficult would it be to start over? | I see desertion mentioned a lot as part of the non-battle lossess along with disease and starvation, was it really a viable option for the soldier?
If it was then what measures could to be taken to catch them? I'd imagine identification was fairly difficult since you could drop your weapons, armour or uniform (if the... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/13yf21/in_your_era_of_expertise_what_are_the_prospects/ | {
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"text": [
"Did you have a specific time period in mind?"
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3nlmse | how does a company like valve not have a customer service department? | I've seen numerous reports and complaints about Steam customer service, or the lack thereof. I've also seen numerous people claim that Valve doesn't have a customer support team for Steam. For a company with the kind of revenue and reputation that Valve have, how is this possible? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3nlmse/eli5_how_does_a_company_like_valve_not_have_a/ | {
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"Could be a couple of things at play here -\n\n1) You only hear the complainers. You're never going to hear that thousands of people whose issue was resolved quickly, painlessly a... | [] | [] | [
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"https://www.vg247.com/2015/02/24/steam-has-over-125-million-active-users-8-9m-concurrent-peak/"
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rzyno | Does the amount of "action" going on during a video effect how fast it is streamed? | Does a streaming video lose quality if there is a lot going on during a scene (explosions, loud noises, colours, fast moving objects) versus a scene where relatively nothing is happening (single colours, flat landscapes, etc.)? | askscience | http://www.reddit.com/r/askscience/comments/rzyno/does_the_amount_of_action_going_on_during_a_video/ | {
"a_id": [
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"text": [
"In general, yes. Most videos you see are compressed. One approach to compressing is assuming that the next frame is just a little bit different to the last frame. Instead of sending a whole frame worth of data - just the difference from the previ... | [] | [] | [
[]
] | |
71p5vw | what kind of applications won't benefit from increased multi-thread performance? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/71p5vw/eli5_what_kind_of_applications_wont_benefit_from/ | {
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"text": [
"One reason is if the application is primarily I/O bound. Adding more threads won't make your hard drive any faster.",
"Applications that only have one thread, of course.\n\nWriting a multi-threaded application is a lot m... | [] | [] | [
[],
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3odqin | what is 'ttip' and why are germany protesting against it in such huge numbers? | I'm dumb and don't understand good. I've seen it in the news today, and it looks like a massive 250,000 person march was held in Berlin on Saturday? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3odqin/eli5_what_is_ttip_and_why_are_germany_protesting/ | {
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"text": [
"I can't answer about the protests but I can shed some light on TTIP. \n\nTTIP is a trans-atlantic agreement that is being debated between the EU and the US. It's basically a set of rules and agreements for trade between the... | [] | [] | [
[],
[]
] | |
26446h | why game theory, being a common sense, can be considered so important that it won people nobel prizes? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/26446h/eli5why_game_theory_being_a_common_sense_can_be/ | {
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"The 'rules' used might seem quite common sense, but to think of formalising it in that way is not, otherwise it would have been done much sooner.\n\nAlso, conclusions taken from the application of game ... | [] | [] | [
[],
[],
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"http://en.wikipedia.org/wiki/Nash_equilibrium",
"http://en.wikipedia.org/wiki/Matching_pennies"
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18qcys | Why were the original stories of fairy tales always so sad. | Like in The Little Mermaid she turns to foam or Snow White the witch burns off her feet with a iron or something. To name a few. Sleeping Beauty has quite an ending too. Eeek! | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/18qcys/why_were_the_original_stories_of_fairy_tales/ | {
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"Depends on how much you buy into Bruno Bettelheim and his Freudian interpretation of fairy tales, really. His theory was that by tell... | [] | [] | [
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311rc5 | [meme] Say you were a character in a game like Skyrim (but ~50 years more advanced); is there any experiment you could perform to definitively prove your world is merely a simulation? | What would that experiment be?
Also, could you ever know anything about the physics of the universe from which the simulation was created? | askscience | http://www.reddit.com/r/askscience/comments/311rc5/meme_say_you_were_a_character_in_a_game_like/ | {
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"I think the scarier po... | [] | [] | [
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"https://i.imgflip.com/jlsbn.jpg"
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3mwik5 | why does the black lives matter movement not protest black on black violence in chicago? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3mwik5/eli5_why_does_the_black_lives_matter_movement_not/ | {
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"text": [
"Because the purpose of the movement is to bring attention to the high ratio of black victims of police brutality. Black victims of police violence are often overlooked and their stories disappear. The... | [] | [] | [
[],
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] | ||
f1ajzj | when a country sells a part of it's territory what happens to the people living there? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f1ajzj/eli5_when_a_country_sells_a_part_of_its_territory/ | {
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"text": [
"They are usually recognized as citizens of the country that's buying the territory. It hasn't happened often in the last 100 years, and there are special cases, but the Chinese people living in Hong K... | [] | [] | [
[],
[],
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66js9x | Why does the ISS maintain a radial-in attitude? | In almost every photo of the International Space Station, you can clearly see that the cupola module is always pointing towards the earth. That means that the ISS maintains a constant attitude relative to Earth and that it's spinning at 1 rotation/orbit (90 min)
I understand that it doesn't need any energy to maintain... | askscience | https://www.reddit.com/r/askscience/comments/66js9x/why_does_the_iss_maintain_a_radialin_attitude/ | {
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"text": [
"This orientation helps decrease atmospheric drag, decreases chances of micrometeorite impacts.\n\nThis attitude also requires the least amount of energy to maintain (well an uncontrolled spin wouldn't... | [] | [] | [
[],
[],
[]
] | |
15j8ge | History of science: Why was 'c' was chosen as the name for the value of light speed in vacuum? | My suspicion is 'c for constant' ? | askscience | http://www.reddit.com/r/askscience/comments/15j8ge/history_of_science_why_was_c_was_chosen_as_the/ | {
"a_id": [
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"text": [
"It wasn't always. \"c\" is generally said to be the speed of a wave in any wave equation, for the latin \"celeritas,\" meaning swiftness. \n\n[More information can be found on Wikipedia at this article.](_URL_0_)",
"T... | [] | [] | [
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"http://en.wikipedia.org/wiki/Speed_of_light#Numerical_value.2C_notation.2C_and_units"
],
[
"http://en.wikipedia.org/wiki/Celeritas"
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] | |
4455od | Is the twin paradox an actual paradox in curved space? | I understand that the resolution to the twin paradox is that the space-travelling twin has to undergo some sort of acceleration to return back to earth, meaning special relativity doesn't hold. But what if space was curved in such a way that the space-travelling twin could travel in a 'straight' line, stay in the same ... | askscience | https://www.reddit.com/r/askscience/comments/4455od/is_the_twin_paradox_an_actual_paradox_in_curved/ | {
"a_id": [
"cznq6jo"
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"score": [
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"text": [
"Funny enough, my PhD advisor wrote a paper addressing [exactly this question](_URL_0_). He and a collaborator looked at a twin-paradox-type setup in *compact spaces*, where if you travel far enough you come back \"out the other side.\"\n\nThe re... | [] | [] | [
[
"http://arxiv.org/abs/gr-qc/0101014"
]
] | |
396g7u | Are there any harmful effects to using vaporized nicotine? | askscience | http://www.reddit.com/r/askscience/comments/396g7u/are_there_any_harmful_effects_to_using_vaporized/ | {
"a_id": [
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"text": [
"Do you mean are there any effects of the nicotine, or any effects of the chemicals most common used as the solvent for nicotine (usually Propylene Glycol and Vegetable Glycerin) in vaporizers? \n \nIn the case of nicotine itself, all the dange... | [] | [] | [
[]
] | ||
3z0kny | Did the surviving Incas or Aztecs ever attempt to overthrow the Spanish? | I've been reading about Middle and South American history lately, and this is a question I've been wondering about. If I understood correctly, most of the ruling class of both Incas and Aztecs were dealt with by the Spanish, but was there ever any real attempt to overthrow the new rule by the surviving Incas or Aztecs?... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3z0kny/did_the_surviving_incas_or_aztecs_ever_attempt_to/ | {
"a_id": [
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"text": [
"I can't speak for the Aztects, but the Incas did take part in some revolts and uprisings against the Spanish rule both during and after the conquest.\n\nThe Inca Empire came to an end when the Spaniards executed Atahualpa, the last Sapa Inca (In... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Neo-Inca_State",
"https://en.wikipedia.org/wiki/Tom%C3%A1s_Katari",
"https://en.wikipedia.org/wiki/T%C3%BApac_Katari",
"https://en.wikipedia.org/wiki/Túpac_Amaru_II"
]
] | |
1oq1ke | what happens to the photons if light is reflected of a colored surface ? | Ok, so I'm no scientist, therefor I only have a basic understanding of how light works. Here's what I know, correct me if I'm wrong :
* light (visible or not) is made of photons with no mass, traveling at the speed of light (depending on the medium)
* the color of a light is caracterised by it's frequency, or it's wa... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1oq1ke/eli5_what_happens_to_the_photons_if_light_is/ | {
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"text": [
"Photons are nothing like glass beads or billiard balls. Think of it as an \"energy packet\", or the smallest unit of energy that can exist. What light is absorbed by a surface, the energy that is originally stored in the pho... | [] | [] | [
[],
[
"http://www.reddit.com/r/explainlikeimfive/comments/1m8vzf/how_do_individual_atoms_reflect_certain_colors_of/"
]
] | |
2dsd4l | While the period of a pendulum is not affected by its mass, would it be affected by changes in the distribution of mass up and down the pendulum due to rotational inertia? | askscience | http://www.reddit.com/r/askscience/comments/2dsd4l/while_the_period_of_a_pendulum_is_not_affected_by/ | {
"a_id": [
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8,
5
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"text": [
"The period of a pendulum is affected by its length. Redistributing the mass at the end of the string changes this length. An intuitive example is sliding a weight up and down the string. The tension wi... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Pendulum_clock"
],
[]
] | ||
fmaxvx | how does blowing on a candle extinguish the flame? is it the air movement or the fact that we exhale carbon dioxide? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fmaxvx/eli5_how_does_blowing_on_a_candle_extinguish_the/ | {
"a_id": [
"fl39cyl"
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"text": [
"A fire requires fuel, oxygen, and heat. By blowing on the flame you're still providing oxygen and the candle itself provides fuel, but you're replacing the hot gases of the flame with colder exhaled breath and there's not enough heat to keep the ... | [] | [] | [
[]
] | ||
1amxv6 | Other than Constantine the Great, who was the greatest Byzantine Emperor? | I'm trying to learn about Roman and Byzantine history, and I've noticed that there are plenty of lists of "greatest Roman emperors" but few that list the greatest Byzantine emperors as a subset. Any thoughts on this? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1amxv6/other_than_constantine_the_great_who_was_the/ | {
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"I'd say Justinian I or Alexios I Komnenos. Justinian managed to recapture, albeit temporarily, a large portion of the Western Empire as well as completely reforming the Roman legal code. Alexios halted... | [] | [] | [
[],
[],
[]
] | |
3yq2m7 | Why do I see concentric circles when I look at my phone screen while wearing (polarized) 3D glasses? | I noticed this at the movie theater yesterday. When I looked at my phone screen at the right angel while wearing 3D glasses, I could see concentric circles in the area of my screen. Also, if I looked only through my left eye, it would be the inverse of what I saw when I looked through only my right eye.
I'm assuming t... | askscience | https://www.reddit.com/r/askscience/comments/3yq2m7/why_do_i_see_concentric_circles_when_i_look_at_my/ | {
"a_id": [
"cyfzwyd",
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"score": [
4,
7
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"text": [
"I'm interested too. Do you think you could post a picture of this effect (assuming you still have the glasses)? Were the circles multicolored like rainbows, or simply varying levels of brightness?\n\nI have two guesses as to... | [] | [] | [
[
"http://cdn4.explainthatstuff.com/thin-film-interference.png",
"https://en.wikipedia.org/wiki/Fresnel_equations",
"https://en.wikipedia.org/wiki/Twisted_nematic_field_effect#/media/File:TN-LCD-schematic-MS-208kB.png"
],
[
"http://i365.photobucket.com/albums/oo98/jkien_photos/physicsforums/smar... | |
30vxhx | How were the Christians a "protected minority" in Muslim controlled Iberia? | My professor said this casually and I don't quite understand what it means - could someone please elaborate? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/30vxhx/how_were_the_christians_a_protected_minority_in/ | {
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"text": [
"The word in Arabic for this \"protected Minority\" is *Dhimmi*, and it applied to non-Muslim \"People of the Book\".\n\nIslam as a whole was largely accepting of the other \"religions of Thee Book\", i.e Christianity and Judaism. In exchange for... | [] | [] | [
[
"http://visionandvalues.org/docs/abused/Graham.pdf"
]
] | |
2as44r | Day on Mars and a day on Earth are roughly the same length. Is this merely a coincidence, or is there another cause? | askscience | http://www.reddit.com/r/askscience/comments/2as44r/day_on_mars_and_a_day_on_earth_are_roughly_the/ | {
"a_id": [
"ciydge7"
],
"score": [
19
],
"text": [
"It's a coincidence *in our current times*. The Moon is slowing down the rotation of Earth so we have to include leap seconds. I always link [this xkcd what-if](_URL_0_) because it is a very comprehensible explanation.\n\nThe Martian moons are ti... | [] | [] | [
[
"https://what-if.xkcd.com/26/"
]
] | ||
a7nc5z | what is the driving factor for reproductive isolation ? | How come the Darwin finches who were living on the same island become different species due to differences only in beak shape while mastiffs and chihuahuas are still in the same species and can mate together despite numerous physical differences ? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a7nc5z/eli5_what_is_the_driving_factor_for_reproductive/ | {
"a_id": [
"ec4bjkm"
],
"score": [
3
],
"text": [
"I think there's more layers to this than you're getting at.\n\nThere are multiple ways to distinguish between species.\n\nSome of them are incompatible because of physical features. I think this is more common in insects and sometimes reptiles. T... | [] | [] | [
[]
] | |
zl3j6 | Is DNA Gel Electrophoresis done in the same process as polyacrylamide gel electrophoresis? | Is it the same as [this process](_URL_0_)? | askscience | http://www.reddit.com/r/askscience/comments/zl3j6/is_dna_gel_electrophoresis_done_in_the_same/ | {
"a_id": [
"c65jt77"
],
"score": [
5
],
"text": [
"Let's make some distinctions here.\n\nThere are two main gel materials used to separate DNA. The first is, as here, polyacrylamide, and PAGE stands for polyacrylamide gel electrophoresis. Depending on how these gels are poured, they are very good... | [] | [
"http://www.youtube.com/watch?v=IWZN_G_pC8U"
] | [
[
"http://en.wikipedia.org/wiki/Single_strand_conformation_polymorphism",
"http://en.wikipedia.org/wiki/Pulsed_field_gel_electrophoresis",
"http://en.wikipedia.org/wiki/Western_blot"
]
] | |
pmdnk | Why do some substances have a half-life (like caffeine), and some are degraded linearly (like alcohol)? | askscience | http://www.reddit.com/r/askscience/comments/pmdnk/why_do_some_substances_have_a_halflife_like/ | {
"a_id": [
"c3qipla"
],
"score": [
6
],
"text": [
"The rate of alcohol metabolism is what's called pseudo-zeroth order kinetics - which is what you mean by concentration decreasing linearly. This is due to the fact that at most blood alcohol concentrations, the alcohol dehydrogenase is already op... | [] | [] | [
[]
] | ||
3pft7e | why are apples not "true to the seed"? why can't you take an apple seed from the fruit and grow an edible one? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3pft7e/eli5_why_are_apples_not_true_to_the_seed_why_cant/ | {
"a_id": [
"cw5zen7",
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"score": [
16,
2,
3
],
"text": [
"Apples just have a lot of variance. There are literally tens of thousands of different varieties of apples and if you grow apples from seeds you will get some of those random varieties. Most of them ... | [] | [] | [
[],
[],
[]
] | |
8bafzv | what exactly is an anecdote? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8bafzv/eli5_what_exactly_is_an_anecdote/ | {
"a_id": [
"dx55iw3",
"dx55pdn"
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"score": [
2,
2
],
"text": [
"An anecdote would usually be told to entertain, or to persuade. (by giving an interesting or amusing (funny) example)",
"An anecdote is a short, real story about something that actually happened.\n\nIt doesn't have to te... | [] | [] | [
[],
[]
] | ||
ahy5ef | have/do people actually view mythology as a legit religion? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ahy5ef/eli5_havedo_people_actually_view_mythology_as_a/ | {
"a_id": [
"eej9ici"
],
"score": [
5
],
"text": [
"\"Mythology\" does *not* relate to a specific set of religious beliefs, it is just a general term/word that describes what individual religions do believe and the lore, the underlying story, of their beliefs.\n\nGenerally \"mythology\" refers to ... | [] | [] | [
[]
] | ||
ex5py2 | So what's the procedure to try and save someone cut in half? Like that famous Truman Duncan, who lost his legs and most of waist yet made recovery. | askscience | https://www.reddit.com/r/askscience/comments/ex5py2/so_whats_the_procedure_to_try_and_save_someone/ | {
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"fg7cjam",
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"score": [
3,
15,
3,
23
],
"text": [
"There was recently a post on /r/medizzy (?) about a teen who had his lower half crushed when his forklift rolled on him (horrific training procedures by his managers)\n\nBut yea ... | [] | [] | [
[],
[],
[],
[]
] | ||
59qnsh | Would Native American tribes in the eastern United States such as the Iroquois, have known about tribes in the West such as the Apache? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/59qnsh/would_native_american_tribes_in_the_eastern/ | {
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536,
13,
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"text": [
"The Iroquois *are a confederacy of tribes. Not a tribe themselves. Just wanted to clarify that point.\n\nEdit: Wanted to clarify that the Iroquois Confederacy is still alive.... | [] | [] | [
[],
[
"https://www.reddit.com/r/AskHistorians/comments/1clgn7/did_native_americans_have_accurate_maps_of_north/",
"https://www.reddit.com/r/AskHistorians/comments/2ndmuo/tuesday_trivia_firsts_and_lasts/cmcpsam/"
],
[
"http://www.douglas-mcintyre.com/book/first-peoples-in-canada"
],
[
"http... | ||
utwca | how does a scissor cut a sheet of paper? | I know this sounds stupid, but I have been thinking about this since I learned about atoms and I'm too shy to ask.
So, I know paper is made of lots and lots of atoms linked together by atomic forces. The blades of a pair of scissors are pretty much the same thing, but with different atoms and stronger bonds. My quest... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/utwca/how_does_a_scissor_cut_a_sheet_of_paper/ | {
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"score": [
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6,
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"text": [
" > I mean, looking at it from our scale, it makes sense, but in an atomic level, I just don't get it.\n\nAre you me?\n\nAlso, maybe try cross posting to [/r/science](/r/science) ",... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/File:PaperAutofluorescence.jpg"
],
[],
[
"http://jclahr.com/science/earth_science/tabletop/pushpull.gif"
]
] | |
bsl2aa | why is it so dangerous to have metal in or around your body when getting an mri? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bsl2aa/eli5_why_is_it_so_dangerous_to_have_metal_in_or/ | {
"a_id": [
"eoo06y2",
"eooirvn"
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"score": [
21,
2
],
"text": [
"MRI is Magnetic Resonance Imaging. \n\nThat uses giant fucking magnets.\n\nThose attract metal object with great amounts of force.\n\nMetal object inside of you + giant magnet outside of you = bloody metal bits ripped out ... | [] | [] | [
[],
[]
] | ||
2m5gvb | how do self driving cars refuel? | Does it send out a request to have a Google employee meet it at a gas station? Does Google call the gas station and ask that the attendant fuel up for them? I tried asking Google themselves but have not found an answer... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2m5gvb/eli5how_do_self_driving_cars_refuel/ | {
"a_id": [
"cm13ro0"
],
"score": [
3
],
"text": [
"Just because the cars can drive themselves doesn't mean they always do. You take control of the wheel and pull it in to a gas station, then get out and pump gas into the car."
]
} | [] | [] | [
[]
] | |
g647j | If I use Listerine regularly, am I eventually going to have a species of super-resistant germs in my mouth? | askscience | http://www.reddit.com/r/askscience/comments/g647j/if_i_use_listerine_regularly_am_i_eventually/ | {
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"score": [
7,
2,
2,
9,
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],
"text": [
"No. Listerine works by destroying the germs, not poisoning them.",
"This is a good question. I know mouthwash does not destroy all ... | [] | [] | [
[],
[],
[],
[],
[],
[
"http://www.reddit.com/r/askscience/comments/evjsp/could_bacteria_develop_a_resistance_to_alcoholic/"
]
] | ||
3ap9tx | Why are there so many different opinions on Charles XII of Sweden? What makes him a good and what makes him a bad man for Sweden? How is he taught in schools in Sweden? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3ap9tx/why_are_there_so_many_different_opinions_on/ | {
"a_id": [
"csewh96"
],
"score": [
5
],
"text": [
"Why Charles XII, or Karl XII is such a polarizing character in Swedish history today is mainly because of the fact that he has been used in various ideological context in the last 200 years. \n\nI have to quote from memory since I'm on vacation a... | [] | [] | [
[
"http://www.popularhistoria.se/artiklar/orsakade-karl-xii-stormaktvaldets-fall/",
"http://www.tandfonline.com.ezproxy.its.uu.se/doi/abs/10.1080/0031383830270101"
]
] | ||
2wsxpd | Old things are often found buried underground, even whole cities. Where does this "new" ground come from? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2wsxpd/old_things_are_often_found_buried_underground/ | {
"a_id": [
"cottgtn"
],
"score": [
7
],
"text": [
"hi! not discouraging additional responses, but check out some previous responses here\n\n* [Many archaeological sites of settlements are often described as having \"layers\". Are these literal layers or an archaeological term?](_URL_0_)\n\n* [Arc... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/2oylvy/many_archaeological_sites_of_settlements_are/",
"https://www.reddit.com/r/AskHistorians/comments/17je7i/archeologists_are_always_digging_up_ancient_ruins/"
]
] | ||
54i18x | giving internet control over to the un | Why are we giving Internet control to the UN and what negative ramifications could it have? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/54i18x/eli5_giving_internet_control_over_to_the_un/ | {
"a_id": [
"d820x0u"
],
"score": [
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],
"text": [
"We are giving it to the UN because it is currently in charge of ICANN who despite being a part of the US government doesn't really receive much overview from them. Transferring it to the UN will just mean that the US has no formal overview either... | [] | [] | [
[]
] | |
nozad | what are the 5th to 9th dimensions? | So my understanding of the spacial and temporal dimensions is limited to the following but I'd like to have a vague understanding of the rest:
1st = x-axis,
2nd = y-axis,
3rd = z-axis, and
4th = time.
Edit: Thank you for the material reddit, continue to post resources if you'd like but I have enough to tide me ov... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/nozad/elif_what_are_the_5th_to_9th_dimensions/ | {
"a_id": [
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"c3asup1",
"c3at5ip",
"c3atffd",
"c3atjnl",
"c3atncp",
"c3atpfc",
"c... | [] | [] | [
[],
[
"http://www.youtube.com/watch?v=UnURElCzGc0"
],
[
"http://www.gutenberg.org/ebooks/201"
],
[],
[
"http://www.youtube.com/watch?v=UnURElCzGc0"
],
[
"http://blogs.oracle.com/bblfish/entry/the_10_dimensions_of_reality"
],
[],
[],
[
"http://www.youtube.com/watch?v=Jkxie... | |
2nlun4 | how texting gloves work? | I've used them before and I'm using them now to text/check social media while waiting outside target but how do these gloves work? I mean it just seems like a different colored thread. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2nlun4/eli5_how_texting_gloves_work/ | {
"a_id": [
"cmeq3bc"
],
"score": [
4
],
"text": [
"The fingertips are conductive. The charge from your fingertips are transferred through the glove's fingertips and onto the touchscreen. The gloves do all of this in addition to keeping your hands warm and toasty. "
]
} | [] | [] | [
[]
] | |
dyp9zi | if plant-based burgers use 99% less water, take up 90% less land, and use 50% less energy than beef burgers to produce, why do they cost so much more to purchase? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dyp9zi/eli5_if_plantbased_burgers_use_99_less_water_take/ | {
"a_id": [
"f82i2vx",
"f82iytd",
"f82jt8f"
],
"score": [
19,
2,
8
],
"text": [
"Because a lot of the equipment is new and is operating at a much smaller scale due to the new and small market for these products. Economies of large scale haven't started.",
"There are cost issues... | [] | [] | [
[],
[],
[]
] | ||
1tetlw | Question about the Wright Brothers. | Hello! I have a thing for aviation and would love to know a little bit more about the Wright Bro's. Things like how much were material costs and such, how long it took to build. and what made their aircraft different from the rich military executives at time. Any info is greatly appreciated! | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1tetlw/question_about_the_wright_brothers/ | {
"a_id": [
"ce781ad"
],
"score": [
2
],
"text": [
"While you're waiting for answers here, you might find this [recent AMA](_URL_0_) from two curators at the Smithsonian Air and Space Museum on the Wright Brothers to be of interest."
]
} | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/1sn6ei/were_curators_of_early_flight_from_the/"
]
] | |
95ycwy | After reading the beginning of Cosmos by Carl Sagan, I am dying to know about the city of Alexandria, not so much about it's destruction, but more about what the city was like in its prime. Can you direct me to quality books or other media that I can learn more from? Thanks. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/95ycwy/after_reading_the_beginning_of_cosmos_by_carl/ | {
"a_id": [
"e3xes53",
"e3xhi79"
],
"score": [
6,
7
],
"text": [
"Edward Watts' intellectual biography of Hypatia--*Hypatia: The Life and Legend of an Ancient Philosopher*--goes deep into Alexandria as a physical place and as an intellectual culture in late antiquity. I know absolutely *no... | [] | [] | [
[],
[]
] | ||
1iikv2 | Where there any nations that desired and/or benefited from WW1? | From what I know it seems as if WW1 was an 'accidental war', into which nations were pulled by a tangle of alliances, and other countries calling their bluffs. Is this true, or were there any nations that wanted a major war? Additionally, did any nations truly benefit as a result of the war (America for example)? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1iikv2/where_there_any_nations_that_desired_andor/ | {
"a_id": [
"cb4tlz7",
"cb4tuf6"
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"score": [
8,
3
],
"text": [
"Arguably, Japan made out quite well during the first World War. At the time, Japan was an ally of the United Kingdom, and early in the war Japan arranged to strike at German territories in China and the Pacific Islands in ex... | [] | [] | [
[],
[
"http://dmorgan.web.wesleyan.edu/jrtut/maprom.htm"
]
] | |
2cjmo5 | Do snakes accidentally get themselves tied in knots? | askscience | http://www.reddit.com/r/askscience/comments/2cjmo5/do_snakes_accidentally_get_themselves_tied_in/ | {
"a_id": [
"cjg8ckh",
"cjgahhk"
],
"score": [
69,
3
],
"text": [
"yes, but they can \"untie\" themselves quite easily since they aren't restricted to pulling on ends and edges. \n\ncertain worms will actually tie themselves into an overhand knot and roll it up their body to escape the gri... | [] | [] | [
[],
[
"http://www.cell.com/current-biology/abstract/S0960-9822\\(14\\)00462-X",
"http://en.wikipedia.org/wiki/Rat_king_\\(folklore\\)"
]
] | ||
73yqdn | Why did the Greeks use a long-distance runner to deliver news at the Battle of Marathon instead of traveling by horse? Did they not have any horses? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/73yqdn/why_did_the_greeks_use_a_longdistance_runner_to/ | {
"a_id": [
"dnu6nth",
"dnv1re9"
],
"score": [
900,
14
],
"text": [
"Apparently this has been asked before btw. The short answer is that Greece has pretty rough terrain which would slow a horse down significantly and that horses aren't necessarily faster at such a loooong distance run.\n\n... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/4pw0px/why_did_the_athenians_send_a_runner_not_a_rider/?st=j8b9tbcb&sh=090c569e"
],
[]
] | ||
1aanm8 | Is there any real science supporting "Brain Training" like Lumosity or similar? | I have heard that keeping the mind challenged is beneficial for older people, or those with early dementia, but what about for the general population or younger people?
Is there any real science supporting "brain training" helping performance in the real world? | askscience | http://www.reddit.com/r/askscience/comments/1aanm8/is_there_any_real_science_supporting_brain/ | {
"a_id": [
"c91ub13"
],
"score": [
4
],
"text": [
"Hey! My lab does this work I've answered the question a few times before, but should probably do a better write up so you'll get a fresh answer! The evidence is ambiguous, mostly because a lot of the studies that have found promising results al... | [] | [] | [
[
"http://psychology.gatech.edu/renglelab/",
"http://www.apa.org/pubs/journals/releases/dev-49-2-270.pdf",
"http://psychology.gatech.edu/renglelab/Redicketal2012.pdf",
"http://www.wmp.umd.edu/index.html",
"http://cogprints.org/730/1/miller.html",
"http://assets2.bigthink.com/system/tinymce_a... | |
b1960s | alcohol-free mouthwash kills some, but not all, bacteria in my mouth. doesn't using it cause antibiotic resistance? | This is analogous to this [ELI5 question](_URL_1_), but the answers there pertain to alcohol and thus don't pertain to my question here.
I list only the [Active Ingredients](_URL_0_), but please LMK if I ought list the Inactive ones too:
1. Eucalyptol 0.091% w/v
2. Thymol 0.063% w/v
3. Menthol 0.042% w/v
4. Sodium F... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/b1960s/eli5_alcoholfree_mouthwash_kills_some_but_not_all/ | {
"a_id": [
"eikecn8"
],
"score": [
2
],
"text": [
"There are no antibiotics in it, why would it cause antibiotic resistance? Non alcoholic mouthwash contains usually CPC ([Cetylpyridinium chloride](_URL_0_)), which is simply a different antiseptic ingredient compared to alcohol. Theoretically bac... | [] | [
"https://www.listerine.ca/listerine-total-care-zero#active-ingredients",
"https://redd.it/44s60s"
] | [
[
"https://pubchem.ncbi.nlm.nih.gov/compound/cetylpyridinium_chloride"
]
] | |
chbjsa | I have a few questions about temperature? | 1. Does it take the same ammount of energy to heat something from 5°C to 6°C as it takes to heat that same thing from 1002°C to 1003°C?
2. As I understand it, atoms can turn their internal energy (temperature) into photons through blackbody radiation. Is there a bottom cutoff at which temperature they dont do that an... | askscience | https://www.reddit.com/r/askscience/comments/chbjsa/i_have_a_few_questions_about_temperature/ | {
"a_id": [
"eurx9uf",
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"score": [
17,
7
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"text": [
" > Does it take the same ammount of energy to heat something from 5°C to 6°C as it takes to heat that same thing from 1002°C to 1003°C?\n\nIn general: No. There are some cases where this isn't a bad approximation, however ... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Planck's_law"
],
[
"https://www.ohio.edu/mechanical/thermo/property_tables/air/air_cp_cv.html"
]
] | |
5g3pp6 | is one atom (of a given element) indistinguishable from another? can an atom be abnormally distinguishable from another of its same element? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5g3pp6/eli5_is_one_atom_of_a_given_element/ | {
"a_id": [
"dap6zms",
"dap72dz"
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"score": [
5,
18
],
"text": [
"Most of the time, yes, atoms of each element are indistinguishable.\n\nThere is a special case with isotopes, though. Elements are defined by the number of protons in the nucleus. You can substitute an atom with the same ... | [] | [] | [
[],
[]
] | ||
207gr2 | what happens to my brita filter when it is "expired?" does it really not work anymore? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/207gr2/eli5what_happens_to_my_brita_filter_when_it_is/ | {
"a_id": [
"cg0hv8g"
],
"score": [
3
],
"text": [
"Basically the carbon in the filter is no longer sticky enough to remove the nasty bits in the water"
]
} | [] | [] | [
[]
] | ||
f79qhc | Did the monarchies of Europe have the same fearful reaction to the result of the English Civil War as it did to the French Revolution? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/f79qhc/did_the_monarchies_of_europe_have_the_same/ | {
"a_id": [
"fia93ky"
],
"score": [
19
],
"text": [
"Well the Commonwealth as its known had three real non-english enemies. Ireland, Scotland and The United Provinces. \n\nFirstly Ireland. Prior the the civil war Ireland had been of course a subject of England and Scotland with Charles being separ... | [] | [] | [
[]
] | ||
d2ev1d | engineering question - compass | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d2ev1d/eli5_engineering_question_compass/ | {
"a_id": [
"ezufqrw"
],
"score": [
4
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"text": [
"In a surveyor's compass, the markings are on the compass, and the rotating needle is an indicator that points at one of the markings. In a prismatic compass the markings rotate on a round card and a special prism contains the indicator. By look... | [] | [] | [
[]
] | ||
hk4x0 | Life on a big planet | Could life exist on a planet twice the size of earth? How would life be different to earths?
I know that there is a limit to how big bugs can get. Could they even exist on such a planet? | askscience | http://www.reddit.com/r/askscience/comments/hk4x0/life_on_a_big_planet/ | {
"a_id": [
"c1w0q0i",
"c1w414u"
],
"score": [
2,
3
],
"text": [
"Lets pin this down a little more. Twice the size can mean a lot of things. I think from your question you may be wondering about **twice the gravity**. A planet the same size as Earth can have greater gravity but still be... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Extremophile"
],
[
"http://www.dailymail.co.uk/news/article-1252481/Pictured-Incredible-gravity-defying-ant-carry-100-times-body-weight.html"
]
] | |
62n0ln | this /r/place thing | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/62n0ln/eli5_this_rplace_thing/ | {
"a_id": [
"dfny0vr"
],
"score": [
2
],
"text": [
"Think of it like /r/thebutton. Every year, reddit does something silly and fun like this for April Fools Day. This is just this year's \"prank.\""
]
} | [] | [] | [
[]
] | ||
avckgw | How large does building has to be so the curvature of the earth has to be considered in its design? | I know that for small things like a house we can just consider the earth flat and it is all good. But how the curvature of the earth influences bigger things like stadiums, roads and so on? | askscience | https://www.reddit.com/r/askscience/comments/avckgw/how_large_does_building_has_to_be_so_the/ | {
"a_id": [
"ehe1q2a",
"ehe4f95",
"ehe4smk",
"ehe52oc",
"ehe5hxk",
"ehe5yv7",
"ehe803q",
"eheazgq",
"ehec94k",
"ehedxmx",
"ehee188",
"ehehyux",
"ehek71p",
"ehem6gp",
"ehemlkv",
"eher0q3",
"ehf1dsg",
"ehf5xey",
"ehf98c4",
"ehfai46",
"e... | [] | [] | [
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Humber_Bridge",
"https://en.wikipedia.org/wiki/Humber\\_Bridge"
],
[],
[
"https://physics.stackexchange.com/questions/235441/how-does-ligo-account-for-curvature-of-earth"
],
[],
[],
[],
[],
[
"https://shop.c-sgroup.com/files/new-sb... | |
5yzjhz | if i keep my smartphone plugged in all the time, is that better for the battery life cycle than if i use it until it's 5% and then charge it back up? will keeping it plugged in all the time extend the life of my smartphone? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5yzjhz/eli5_if_i_keep_my_smartphone_plugged_in_all_the/ | {
"a_id": [
"deu3ams",
"deu4avu",
"deu5kej",
"deu6s83",
"deu82lr",
"deu9it7",
"deuaj0a"
],
"score": [
109,
4,
30,
4,
21,
2,
5
],
"text": [
"That's true, deep discharges are most damaging to a lithium-ion battery. Repeatedly running it low to almost z... | [] | [] | [
[
"http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries"
],
[],
[],
[],
[
"http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries"
],
[],
[]
] | ||
tb3vp | Why was Bulgakov so badly censored by Stalinists? | Why was he censored so heavily? I mean, he didn't write anything which praised the regime but there was nothing outwardly negative in what he wrote, and he was loved by Stalin, who rang him up personally when he wanted to emigrate. If he was this far in Stalin's good book then why was he so heavily censored and critici... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/tb3vp/why_was_bulgakov_so_badly_censored_by_stalinists/ | {
"a_id": [
"c4l3n8t"
],
"score": [
11
],
"text": [
"I'm getting the warm and fuzzies here from just having the name mentioned. Bulgakov is by far my favorite author. I'll give you a couple of reasons why he was censored, and keep in mind that there are plenty more. \n\nMaster and Margarita is rif... | [] | [] | [
[]
] | |
2mlyyg | michael brown and dillon taylor were both unarmed and shot by police within 2 days of each other. excluding race, why is the brown case generating more attention? | [Dillon Taylor](_URL_0_) was shot to death by police just two days after Michael Brown's death, yet there was very little media coverage. Because of this, I have a couple questions;
1.) Excluding skin color, are there any main differences as to why the Brown case is getting so much more media attention?
If the uproar... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2mlyyg/eli5_michael_brown_and_dillon_taylor_were_both/ | {
"a_id": [
"cm5gg69",
"cm5gkeq",
"cm5grmv"
],
"score": [
2,
3,
3
],
"text": [
"1) video is awesome. More and more departments are adopting cameras and I wouldn't be surprised if a mandate came out by the end of this decade. Also brown was already claiming the headlines\n\n2) Ther... | [] | [
"http://www.huffingtonpost.com/2014/10/01/dillon-taylor-shooting-justified_n_5912976.html"
] | [
[],
[],
[]
] | |
40je9a | Why can't the batteries for devices like video game controller be recharged by use? | So modern wireless video game controllers have a battery, a micro USB port, and recharge by plugging them in to a power supply of some sort (computer, wall outlet, dedicated charger, etc) exactly the same as modern cell phones.
These controllers have mechanical buttons and joysticks that are pressed and moved frequent... | askscience | https://www.reddit.com/r/askscience/comments/40je9a/why_cant_the_batteries_for_devices_like_video/ | {
"a_id": [
"cyvle3u",
"cyvlmwa"
],
"score": [
6,
2
],
"text": [
"THink about those stupid wind up flash lights, you have to crank them for like 10 minutes to get a fem minutes of LED light. Kinetic - > battery is very inefficient. a few light button presses doesn't provide much power and... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Piezoelectricity",
"http://r1.coleman.com/ProductImages/Full/829e710t_500.jpg"
],
[]
] |
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