q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
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3hrlmk | if teachers have to spend so much money out of pocket on school supplies for class why don't they just stop? | Little Timmy forgot his pen and notebook today? Tough shit Timmy. Make some friends and ask them | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3hrlmk/eli5if_teachers_have_to_spend_so_much_money_out/ | {
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"text": [
"Teachers are kind of strange in that they care about the children under their charge and also care about their jobs. Kind of crazy I know",
"Little timm... | [] | [] | [
[],
[],
[],
[
"https://edpolicy.stanford.edu/sites/default/files/scope-pub-using-technology-report.pdf"
],
[]
] | |
rqd41 | what helps and hurts my credit score? | First- is it a rating of how likely I am to repay my debts, or does it rate how profitable I am as a debtor?
For example, I understand that making payments on time helps one's credit score, but what if those payments consistently eliminate remaining balance without racking up any interest?
I understand that the exac... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/rqd41/eli5_what_helps_and_hurts_my_credit_score/ | {
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"text": [
"I recently got a job in the financial industry that requires me to pull credit on people all day long. I don't know too much about what builds a credit score yet, but what hurts i... | [] | [] | [
[],
[
"http://www.myfico.com/crediteducation/creditinquiries.aspx"
],
[],
[
"http://www.moneysavingexpert.com/loans/credit-rating-credit-score"
]
] | |
4xbp2k | how does gymnastics stunt growth? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4xbp2k/eli5_how_does_gymnastics_stunt_growth/ | {
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45,
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"text": [
"Overtraining can cause low estrogen levels which can lead to not having a menstrual cycle. ",
"Two days ago I believed women had puberty delayed by c... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
yytq9 | why do microsoft and other software companies care which internet browser people use if the software is free? | After reading that in Windows 8 non-IE browsers will be intentionally slowed down, it made me think - why does anyone care what software we are using if we use it for free anyway? I am sure I am missing something. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/yytq9/why_do_microsoft_and_other_software_companies/ | {
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"score": [
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21,
3,
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"text": [
"There are several important reasons, but it mostly comes down to peoples browser having a potentially large impact on what they do on... | [] | [] | [
[],
[],
[],
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] | |
11gi51 | Does drinking Coca Cola or similar drinks have a net hydrating effect or not? | I was wondering whether the diuretic effects of the caffeine were sufficient to make Coke dehydrating. I drink quite a lot of it, and don't want to be taking any crazy risks with my water levels...I hear kidney stones are pretty bad! | askscience | http://www.reddit.com/r/askscience/comments/11gi51/does_drinking_coca_cola_or_similar_drinks_have_a/ | {
"a_id": [
"c6majzl"
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"score": [
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"text": [
"No, the water contained in Cola - or coffee, for that matter - by far negates the diuretic effect of caffeine. Plus, tolerance to caffeine builds up quite fast, and with that comes a resistance to the diuretic effect.\nHence, the conception that ... | [] | [] | [
[]
] | |
37i0bp | Could stress cause ADHD? | Not necessarily in a black or white way, but could being stressed out about something lead to or trigger someones ADHD or similar concentration issues? | askscience | http://www.reddit.com/r/askscience/comments/37i0bp/could_stress_cause_adhd/ | {
"a_id": [
"crn0ler"
],
"score": [
6
],
"text": [
"ADHD is a particular neurodevelopmental disorder. Stress cannot suddenly cause it. However both stress and anxiety can certainly cause similar cognitive symptoms such as an inability to focus. They are different psychological problems with a simi... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Yerkes%E2%80%93Dodson_law"
]
] | |
7ago01 | how are proteins important in the nervous system? | Yeah, so I looked this up and it gave me some biochem gibberish or something. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7ago01/eli5_how_are_proteins_important_in_the_nervous/ | {
"a_id": [
"dpa2fbj",
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"score": [
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"text": [
"Proteins are important in the nervous system for the same reasons they are important in any cell: They provide structure, act as catalysts for metabolic reactions, work in cell signaling and transport of substances within, i... | [] | [] | [
[],
[]
] | |
2fhy89 | why the dallas cowboys are touted as "america's team" and not the new england patriots? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2fhy89/eli5why_the_dallas_cowboys_are_touted_as_americas/ | {
"a_id": [
"ck9e7vf",
"ck9ea8x",
"ck9jl79"
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"score": [
2,
13,
2
],
"text": [
"because of their cheerleaders, honey.",
" > The term \"America's Team\" is a popular nickname in the United States that refers to the Dallas Cowboys. The nickname originated with the team's 1978 hi... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/America's_Team"
],
[]
] | ||
4ik6pu | Could there be organisms made out of dark matter? | askscience | https://www.reddit.com/r/askscience/comments/4ik6pu/could_there_be_organisms_made_out_of_dark_matter/ | {
"a_id": [
"d2ysas9"
],
"score": [
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],
"text": [
"It's possible. The most generic dark matter candidate is a WIMP (weakly interacting massive particle), and it is pretty unlikely an organism could be made out of WIMPs, since that are so weakly interacting that they just pass through each other.... | [] | [] | [
[]
] | ||
qwki6 | What would happen to a corpse preserved by being encased in a glass block? | Some of my (16yo) pupils were speculating about ways to preserve a body. One suggested that being encased in a block of glass would preserve the corpse by excluding chemicals and microorganisms while protecting from the weather. This would leave your corpse in the same state as when it was interred, as some kind of (... | askscience | http://www.reddit.com/r/askscience/comments/qwki6/what_would_happen_to_a_corpse_preserved_by_being/ | {
"a_id": [
"c410y3a",
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"c411zva"
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"score": [
3,
2,
2
],
"text": [
"You are correct in your belief.\n\nMost decomposition is a result of internal bacteria and breakdown. If you took a corpse and encased it inside of a glass block then all you would end up with is some g... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Rosalia_Lombardo"
],
[]
] | |
5t4bhv | How would one objectively determine if the sample size of a set of data is "good enough"? | askscience | https://www.reddit.com/r/askscience/comments/5t4bhv/how_would_one_objectively_determine_if_the_sample/ | {
"a_id": [
"ddkbhft",
"ddkpdxc"
],
"score": [
7,
9
],
"text": [
"The question will be \"what kind of data\" and \"good enough for what?\" Is the data set responses from a telephone poll in a presidential race trying to see who's ahead, or a clinical trial trying to show that drug X and dr... | [] | [] | [
[],
[
"http://www.statmethods.net/stats/power.html"
]
] | ||
f5jtmt | how does sarcasm work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/f5jtmt/eli5_how_does_sarcasm_work/ | {
"a_id": [
"fhz4hho",
"fhz64l2"
],
"score": [
3,
2
],
"text": [
"Oh reallyyyyy?!?! You never understood it.",
"Are you perhaps not a native English speaker or on the autism spectrum?\nSarcasm is when something is said, often in an exaggerated tone, to imply exactly the opposite.\nFro... | [] | [] | [
[],
[
"literarydevices.net"
]
] | ||
9swyab | although adults constantly tell me all cucumbers are 95% water, why does water taste bitter if i drink it after i had a cucumber? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9swyab/eli5_although_adults_constantly_tell_me_all/ | {
"a_id": [
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"score": [
2,
20,
3
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"text": [
"Because the other stuff in a cucumber gives it flavor. A soda is going to be > 95% water. Tea and coffee are > 95% water. If I get sick and take a shit, it might even be > 95% water. Doesn't mea... | [] | [] | [
[],
[],
[]
] | ||
26i0oo | why do mosquitoes bite the shit out of me but not other people? and why do they only come out at sunrise/sunset? | i hate em | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/26i0oo/eli5why_do_mosquitoes_bite_the_shit_out_of_me_but/ | {
"a_id": [
"chr9hj0",
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"score": [
3,
2
],
"text": [
"Mosquitos actually favor certain blood types over others.\nYour scent has something to do with it too.\n\nBananas are known to increase your yummyness as well.\nLocation too. If you pass by grass that has dormant mosquito... | [] | [] | [
[],
[]
] | |
1v1c7w | Data caps? Does it really cost more money to transfer a gig as compared to letting your internet sit idle? | I ask this because I stream video thru my router to my TV all the time and I have never noticed an increase to my power bill. (slightly sarcastic)
Am I making a horrible correlation here?
I see the part of the ISPs wanting to gouge us for trivial things, but I just want to have an unbiased opinion to explain this. | askscience | http://www.reddit.com/r/askscience/comments/1v1c7w/data_caps_does_it_really_cost_more_money_to/ | {
"a_id": [
"cenufyx",
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"score": [
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2
],
"text": [
"If you're uploading/downloading data, the main cost for your ISP is building and maintaining the infrastructure to route and transmit the data. If everyone uses twice as much data, your ISP needs to have a network with twice... | [] | [] | [
[],
[]
] | |
5ilihf | Why are elements above bismuth so very unstable? | Something that I can't understand is why stability suddenly drops off after bismuth. Aside from elements 43 and 61, all elements under lead (82) are stable. However, after lead, I see the following:
lead (stable) > bismuth ("stable", half-life 10^19 a) > polonium (not at all stable, half-life of Po-209 is 125 a, o... | askscience | https://www.reddit.com/r/askscience/comments/5ilihf/why_are_elements_above_bismuth_so_very_unstable/ | {
"a_id": [
"db97jff"
],
"score": [
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],
"text": [
"Well each of these elements has many isotopes, each with its own half-life. But anyway, it seems like your question essentially boils down to why there is so much variation in alpha decay half-lives.\n\nAlpha decay proceeds via quantum tunneling;... | [] | [] | [
[]
] | |
5lvjgk | what makes snapchat a successful messaging platform over competitors? | [deleted] | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5lvjgk/eli5_what_makes_snapchat_a_successful_messaging/ | {
"a_id": [
"dbysj3m"
],
"score": [
2
],
"text": [
"The image / message you send is only available for 10 seconds. Then it gets erased and lost forever.\n\nNot really forever. But you get a warning if they take a screenshot.\n\nThe thing I like the most about Snapchat is that you can't edit the ph... | [] | [] | [
[]
] | |
9fxhk8 | how to hear the beat in music. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9fxhk8/eli5_how_to_hear_the_beat_in_music/ | {
"a_id": [
"e600dng"
],
"score": [
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],
"text": [
"The first line \"fortunately you have got someone who relies on you.\" That's 4 measures (bars.) In this song, that's 16 beats. If you listen to the percussion in the intro, prior to the lyrics beginning, you'll notice it's a pattern with very ... | [] | [] | [
[]
] | ||
ucmo9 | Does an ice cube excert more gravitational pull than the same amount of floating water? | Basically, I see the universe as this big box of atoms and the closer together they are, the gravitational pull of that object is stronger. I wanted to see if this really is true. | askscience | http://www.reddit.com/r/askscience/comments/ucmo9/does_an_ice_cube_excert_more_gravitational_pull/ | {
"a_id": [
"c4u7tf6",
"c4u7tph"
],
"score": [
2,
2
],
"text": [
"What matters is how much mass there is. A 1 gram block of ice has the same mass as 1 gram of water, and therefore they have the same gravitational properties. \n\nYou're probably thinking about neutron stars, in that case it... | [] | [] | [
[],
[]
] | |
1645qy | For people who remember: What did you expect to happen when the Berlin Wall fell? | I was pretty young at the time—my father told me that we'd learn about it in history class one day but I didn't really understand, I was born in 1985—but I think if I were old enough, I would have expected another "Prague Spring", maybe a clamp-down, maybe some loosening or dissolution of the Eastern Bloc or even the s... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1645qy/for_people_who_remember_what_did_you_expect_to/ | {
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"score": [
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4,
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"text": [
"Well I remeber it as a 6 year old in (then) Czechoslovakia, and I remember everyone being very optimistic about w... | [] | [] | [
[],
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/B-2_bomber",
"http://en.wikipedia.org/wiki/Soviet_coup_attempt_of_1991"
],
[]
] | |
2jxh5t | which file formats respond best to compression, and why? | Sometimes, archives of one type of data get compressed much smaller than archives of another type. Which file formats are compressible, and which are already compressed to the max? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2jxh5t/eli5_which_file_formats_respond_best_to/ | {
"a_id": [
"clfyplz"
],
"score": [
3
],
"text": [
"Random data with no pattern makes the worst form of compression, anything with repeating pattern(s) makes the best. \n\nEdit: I'm also adding in that some compression is lossless and some isn't. A lossless compression is required for something li... | [] | [] | [
[]
] | |
9smkix | how does dust get in closed places like closets and drawers that are rarely opened? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9smkix/eli5_how_does_dust_get_in_closed_places_like/ | {
"a_id": [
"e8pu544",
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"score": [
5,
13
],
"text": [
"Since dust is everywhere in the air it comes inside these closed places simply by opening them. \nIf you analyze a m^2 of air you can find millions of particles. While going through the air you barely notice them. But if th... | [] | [] | [
[],
[]
] | ||
5olnu7 | how does a sound stimulate the brain? | Recently, I have started to listen to brown noise while studying to boost my productivity. While listening to it, I could focus and concentrate on studying without being distracted. Being the person easily distracted, this surprised me a lot, so I was just wondering, what is the science behind this?
_URL_0_
Here is t... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5olnu7/eli5_how_does_a_sound_stimulate_the_brain/ | {
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29,
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"text": [
"Brown noise or white noise helps you focus because the brain processes it as silence. In a quiet room and even in complete silence, slight noises like the... | [] | [
"https://www.reddit.com/r/LifeProTips/comments/5oiiuz/lpt_if_you_have_to_concentrate_on_something_i/?st=IY25HQ41&sh=0ae7a9b5"
] | [
[],
[
"https://youtu.be/9T978ES0LdQ"
],
[],
[
"https://en.wikipedia.org/wiki/Colors_of_noise"
],
[
"https://en.wikipedia.org/wiki/Stochastic_resonance",
"https://upload.wikimedia.org/wikipedia/de/6/6f/Stoch_reson_example1.png"
]
] | |
6fmhs3 | Why is Arizona? | I just remembered this clip from the [King of the Hill](_URL_0_)
For those who can't watch the video, the family visits Phoenix and the son asks if the thermometer reading of 111 degree Fahrenheit could possibly be correct, and the mother answers: "This city should not exist. It is a monument to Man's arrogance."
So... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6fmhs3/why_is_arizona/ | {
"a_id": [
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21
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"text": [
"First, I want to point out that Arizona is not a barren wasteland. There are green and mountainous areas near Flagstaff, and lots of nice areas like Tucson and Sedona. \n\nBut as for why European and US settlers went to ... | [] | [
"https://www.youtube.com/watch?v=4PYt0SDnrBE"
] | [
[],
[
"http://www.mdpi.com/2072-4292/8/3/185/pdf",
"http://journals.ametsoc.org/doi/pdf/10.1175/BAMS-D-11-00011.1",
"http://onlinelibrary.wiley.com/doi/10.1111/j.0033-0124.1984.00196.x/full"
]
] | |
66b078 | why is apple just sitting on the largest capital in the world? why not use it to invest, innovate, acquire etc.? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/66b078/eli5_why_is_apple_just_sitting_on_the_largest/ | {
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"text": [
"They are! But the thing is - they also have to try and make a profit off that.\n\nThat's Apple's big problem. They have SO MUCH cash flow, that even after ... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
1j1wca | why some people sleep walk/talk and other don't | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1j1wca/eli5_why_some_people_sleep_walktalk_and_other_dont/ | {
"a_id": [
"cbag4y4"
],
"score": [
7
],
"text": [
"Hi there.\n\nThis is called Somnambulism. It occurs at any age, can be genetically linked and effects 4% of adults.\n\nSleep walking/talking occurs during phase 4 of the sleep cycle. Night terrors (not to be confused with nightmares, which occur... | [] | [] | [
[
"http://www.livescience.com/32460-why-do-people-sleepwalk.html"
]
] | ||
bkic38 | At what point in history could you say the Roman Empire was no longer a latin empire? | As we all know, at one point in the (eastern) Roman Empire, greek had completely replaced latin language.
When did this happen? How gradual was it?
Was there any last point in history when you could definately say that the majority of the people in the administration still spoke latin?
Are there any lists of la... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/bkic38/at_what_point_in_history_could_you_say_the_roman/ | {
"a_id": [
"emhq9p2"
],
"score": [
2
],
"text": [
"The first thing to note is that the East was never really Latin speaking at all. The lingua Franca of the East was Greek, but even that was most prevalent in the big cities like Antioch and Alexandria when you move south and east from Anatolia (... | [] | [] | [
[]
] | |
1dky80 | How much does passenger weight affect fuel costs for an airline? | For example, say we had a 747 with 400 people on board and the average weight of the passengers was 150 pounds. Now compare that to a 747 with the same number of passengers but an average weight of 250. Is that difference significant in terms of fuel use? I feel like it would be but not by that much. | askscience | http://www.reddit.com/r/askscience/comments/1dky80/how_much_does_passenger_weight_affect_fuel_costs/ | {
"a_id": [
"c9rfmhe",
"c9rgsfq"
],
"score": [
3,
4
],
"text": [
"I've been an aviation enthusiast for a long time, hopefully this will help (hopefully its correct too). The short answer is that weight is an all-important factor. There are a couple things to consider with the problem. \n\n... | [] | [] | [
[
"http://wright.nasa.gov/airplane/Images/lifteq.gif"
],
[]
] | |
e9a2o2 | WWI famously had an emphasis on artillery with the creeping barrage and pounding the trenches, but how big a roll did artillery play in WWII? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/e9a2o2/wwi_famously_had_an_emphasis_on_artillery_with/ | {
"a_id": [
"fajiscj"
],
"score": [
11
],
"text": [
"WWII was honestly almost as defined by artillery as the first world war. Indeed, most of the tactical and strategic lessons of the first world war were burned into the heads of the various officers who now led the armies of Europe and the United... | [] | [] | [
[
"http://bulletpicker.com/pdf/Japanese%20Seacoast%20Artillery.pdf"
]
] | ||
4n7daz | when a program on my computer freezes, and i click "close the program" in the error message, why does it sometimes not close? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4n7daz/eli5_when_a_program_on_my_computer_freezes_and_i/ | {
"a_id": [
"d41gmw0",
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"score": [
3,
6,
2,
4
],
"text": [
"A computer has a list of tasks it needs to do and when you click \"close\", you add a command to the end of that list of tasks. Unfortunately it's stuck processing an earlier task ... | [] | [] | [
[],
[],
[
"https://www.reddit.com/user/colonelsmoothie"
],
[]
] | ||
1wim7n | Is it possible that Sublimation does not actually exist? | My SO just brought up a curiosity concerning sublimation and whether or not it actually exists or if it is just a transition from solid to liquid to gas that happens too quickly for us to be able to observe? | askscience | http://www.reddit.com/r/askscience/comments/1wim7n/is_it_possible_that_sublimation_does_not_actually/ | {
"a_id": [
"cf2bnb1"
],
"score": [
14
],
"text": [
"It actually exists. It is really the exact same process as evaporation. Molecules are, one by one, randomly getting enough of a \"kick\" such that they are no longer bound to their friends. Remember, the temperature of a substance is a statement... | [] | [] | [
[]
] | |
1s64el | how does a radio station that transmits in different areas send the broadcast to other stations? | Like, when a station has multiple wavelengths, how does it send the broadcast if not by radio towers. And why do they use different wavelengths in different areas. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1s64el/eli5how_does_a_radio_station_that_transmits_in/ | {
"a_id": [
"cdu9kaw",
"cdufp12"
],
"score": [
3,
4
],
"text": [
"FM radio has a fairly short range. Short enough that if you want to cover a large metro region you couldn't get it done with a single tower. The FCC regulates how close towers with the same frequency can be to each other, ... | [] | [] | [
[],
[]
] | |
490mjs | establishment and anti-establishment in u.s. politics | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/490mjs/eli5_establishment_and_antiestablishment_in_us/ | {
"a_id": [
"d0o4k4o"
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"score": [
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"text": [
"Establishment as far as politics revolves around politicians that have been politicians for years if not decades. They are deeply entrenched in their political party and have a lot of influence and power and nowadays they are basically seen as co... | [] | [] | [
[]
] | ||
zb1d9 | what happens in the brain of a schizophrenic? | How is it different to a "normal" brain? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/zb1d9/what_happens_in_the_brain_of_a_schizophrenic/ | {
"a_id": [
"c631cpk",
"c6346jp",
"c6353qz",
"c636atc"
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"score": [
7,
2,
2,
2
],
"text": [
"Unfortunately we don't really know. Part of the problem is that schizophrenia is diagnosis of *symptoms* rather than underlying conditions. \n\nThere is evidence to suggest that ma... | [] | [] | [
[],
[],
[
"http://sciencefriday.com/segment/08/24/2012/david-eagleman-gets-inside-our-heads.html"
],
[]
] | |
7m48qk | If a gamma ray burst were to strike earth, would the distance it originated from change its effects at all? Also, would it be possible for the burst to only effect part of the planet, say, if it struck the northern but not southern hemisphere? | askscience | https://www.reddit.com/r/askscience/comments/7m48qk/if_a_gamma_ray_burst_were_to_strike_earth_would/ | {
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"score": [
176,
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26,
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"text": [
"The distance would mostly affect the intensity which you can think of as photons/cm^(2)\\*s. The gamma ra... | [] | [] | [
[],
[],
[
"https://www.youtube.com/watch?v=8HvwNOSnveE"
],
[],
[],
[],
[]
] | ||
d6cw6x | what is exploit development? | I want to know what exactly is Exploit development in a real job. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d6cw6x/eli5_what_is_exploit_development/ | {
"a_id": [
"f0s3fqq",
"f0sa4jw",
"f0sbybi",
"f0ssrdk"
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"score": [
4,
3,
2,
2
],
"text": [
"Exploit is literally just that. Using something in a way it wasn't designed for. Lighting a cigarette using a toaster is an exploit for example. In the computer world an exploit co... | [] | [] | [
[],
[
"https://www.ted.com/talks/angela\\_lee\\_duckworth\\_grit\\_the\\_power\\_of\\_passion\\_and\\_perseverance?language=en",
"https://www.ted.com/talks/angela_lee_duckworth_grit_the_power_of_passion_and_perseverance?language=en",
"https://null-byte.wonderhowto.com/how-to/exploit-development-everyt... | |
2tfd1d | 'Amr ibn al-'As and Cyrus | I'm listening to the History of Byzantium podcast, and in Episode 49 - The Man Who Lived Too Long he discusses Cyrus's bribe to the Muslims under 'Amr ibn al-'As and mentions Cyrus trying to arrange a political marriage between Heraclius' daughter and 'Amr, amd 'Amr's conversion to Christianity.
Knowing what a hot mes... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2tfd1d/amr_ibn_alas_and_cyrus/ | {
"a_id": [
"cnyjikc"
],
"score": [
2
],
"text": [
"I'm reasonably sure that this story can only be found in Nikephoros' *Short History*, which was written in the late eighth century by the patriarch of Constantinople. It sounds pretty unlikely and I think this was invented by later Byzantine writ... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/comments/2rn9da/why_did_cyrus_of_alexandria_massacre_the_coptic/"
]
] | |
2h6kal | how are vitamins and supplements, that the body makes naturally, man-made? | I was drifting off into space while staring at my bottle of melatonin and started thinking. What are these things even made out of? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2h6kal/eli5how_are_vitamins_and_supplements_that_the/ | {
"a_id": [
"ckpucvb"
],
"score": [
7
],
"text": [
"Firstly, your body doesn't naturally make vitamins, that's why you need to eat them. \nSecondly, most of them are just extracted. Most of the things we grow or produce for food, of necessity, have those vitamins in. Sometimes it's easier to just... | [] | [] | [
[]
] | |
5g6y08 | why taiwan and united states have severed diplomatic ties. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5g6y08/eli5_why_taiwan_and_united_states_have_severed/ | {
"a_id": [
"dapywzm",
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"daq3hzq",
"daq652c",
"daq9zww"
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"score": [
8,
25,
2,
8,
2,
2
],
"text": [
"Because the People's Republic of China (usually just called \"China\") gets really mad when other countries recognize the Republic of C... | [] | [] | [
[],
[],
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Second_Taiwan_Strait_Crisis",
"https://en.wikipedia.org/wiki/February_28_Incident",
"https://en.wikipedia.org/wiki/First_Taiwan_Strait_Crisis",
"https://en.wikipedia.org/wiki/Third_Taiwan_Strait_Crisis"
]
] | ||
1nlzkm | why would a business limit the amount of products a person can buy? (e.g. "maximum 5 per customer") | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1nlzkm/eli5_why_would_a_business_limit_the_amount_of/ | {
"a_id": [
"ccjsscc",
"ccjvh72"
],
"score": [
6,
2
],
"text": [
"Usually they are offering something at below normal cost as a promotion. Say a widget costs ABC company $10 to buy and they sell it for $20. They might offer it for sale for only $10 as a promotion in hopes that you'll com... | [] | [] | [
[],
[]
] | ||
5ulcb2 | What happens inside my charger if I plug one end into the outlet, but don't plug the other end into my phone? | askscience | https://www.reddit.com/r/askscience/comments/5ulcb2/what_happens_inside_my_charger_if_i_plug_one_end/ | {
"a_id": [
"ddvkqph"
],
"score": [
18
],
"text": [
"The circuit is open loop, which means infinite resistance (not really infinite in real life but extremely high. Current does not flow in an open circuit, which means the charger is ignored. No current flows into or out of the charger. \n\nOnce t... | [] | [] | [
[]
] | ||
1rzt70 | Why do the bits of tea gather at the middle of my mug when I swirl it? | Why do the bits of tea gather at the middle of my mug when I swirl it, and not the outside?
I feel sure that this must have been asked and explained somewhere but I couldn't find it, apologies and please could someone point me towards a good answer if so?
(By bits of tea I mean any kind of little bits that you might ... | askscience | http://www.reddit.com/r/askscience/comments/1rzt70/why_do_the_bits_of_tea_gather_at_the_middle_of_my/ | {
"a_id": [
"cdsiul3",
"cdsmonc",
"cdsq4lg"
],
"score": [
84,
8,
6
],
"text": [
"It is called the [Tea leaf paradox and wikipedia has a pretty good article on it](_URL_0_).\n\nWhen you stir the cup, water is forced outward because of centrifugal force, the same sensation you get wh... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Tea_leaf_paradox"
],
[],
[
"http://en.wikipedia.org/wiki/Tea_leaf_grading#Grade_terminology"
]
] | |
1f5muh | How did people of the past made fermented food without food poisoning? | They didn't have knowledge to cultivate bacteria samples...
Did they just used their dirty hand to fermented it? If so how did they prevented contamination?
Just occurred to me after eating cheese. | askscience | http://www.reddit.com/r/askscience/comments/1f5muh/how_did_people_of_the_past_made_fermented_food/ | {
"a_id": [
"ca73o0u",
"ca75cd3",
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"score": [
7,
2,
5
],
"text": [
"There are a couple things to keep in mind. \n\n1) With substances such as beer if you heat the substance pre-fermentation it will kill everything in the beer. Then yeasts from the atmosphere can infiltr... | [] | [] | [
[],
[],
[]
] | |
485jgq | why are nascar tracks an oval as opposed to something like a figure 8 so they can make right turns as well. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/485jgq/eli5_why_are_nascar_tracks_an_oval_as_opposed_to/ | {
"a_id": [
"d0h92n7"
],
"score": [
3
],
"text": [
"NASCAR has two road circuits in the schedule: Sonoma Raceway and Watkins Glen.\n\nFor the most part, though, they use oval tracks because that's what people like to see (in general, in America). At an oval track, you can see pretty much all of... | [] | [] | [
[]
] | ||
4x0c5s | why is cantonese treated as a dialect by the hong kong government? | Hong Kong's official languages are Chinese and English. I'm aware of the British's influence on Hong Kong that created the need for inclusion of English as well as the fact that Mandarin is the predominate Chinese language used in Chinese media, so I can understand why the entire language family would be included as it... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4x0c5s/eli5_why_is_cantonese_treated_as_a_dialect_by_the/ | {
"a_id": [
"d6bm93l"
],
"score": [
2
],
"text": [
"I agree with you that Cantonese is a separate language from the other Chinese languages.\n\nThat being said, it's political. China continues to claim that the varieties of Chinese, such as Yue, Wu, Minnam etc are dialects because it helps to unif... | [] | [] | [
[]
] | |
48saaq | how can movie producers hire actors of a specific race or sex without it counting as racial/sexual profiling? | "White male receptionist wanted for hire" - illegal
"White male actor for roll in new film wanted" - legal
How do these laws work?
| explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/48saaq/eli5_how_can_movie_producers_hire_actors_of_a/ | {
"a_id": [
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"d0m2fek"
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"score": [
20,
2,
2,
5,
3,
3,
3
],
"text": [
"Anti discrimination laws usually have exceptions for acting and other jobs where race is deemed relevant to the j... | [] | [] | [
[],
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Civil_Rights_Act_of_1964",
"https://www.law.cornell.edu/uscode/text/42/2000e%E2%80%932"
],
[],
[]
] | |
9kkp6y | the cholesterol in egg and just how much it impacts cholesterol levels. | Debating with a friend over egg being healthier than McDonalds, but she won't believe me. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9kkp6y/eli5_the_cholesterol_in_egg_and_just_how_much_it/ | {
"a_id": [
"e6ztdso"
],
"score": [
14
],
"text": [
"Dietary Cholesterol is no longer thought to contribute much if anything to blood cholesterol level. Blood Cholesterol is made by the liver and not taken out of the food that we eat. "
]
} | [] | [] | [
[]
] | |
8is2ju | what is the feeling when your balls shoot into your stomach? | You know that feeling, when you see something so painful that it feels like a hollow opening is in your lower intestine and it feels like your balls have shot upwards. Every guy knows this type of pain, but what exactly is happening. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8is2ju/eli5_what_is_the_feeling_when_your_balls_shoot/ | {
"a_id": [
"dyu8wib"
],
"score": [
8
],
"text": [
"I believe it's your brain sending a message to your balls to retract because it can't handle being a male. "
]
} | [] | [] | [
[]
] | |
2d7zf7 | how some less muscular people can lift a lot heavier weights than much muscular people? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2d7zf7/eli5_how_some_less_muscular_people_can_lift_a_lot/ | {
"a_id": [
"cjn1gmr"
],
"score": [
2
],
"text": [
"When I had a weight training class, I was told that I could lift weights to become stronger OR to have more impressive-looking muscles, but not really both at the same time. More muscle is more power, so any working out will make you capable of ... | [] | [] | [
[]
] | ||
akaluz | When did the modern day measures of time become universally accepted; i.e., 60 seconds per min, 60 min per hr, 24 hrs per day. What other measures of time passing do we know existed in ancient cultures? Finally, why don’t we measure time in a deci-metric type system? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/akaluz/when_did_the_modern_day_measures_of_time_become/ | {
"a_id": [
"ef3fw64"
],
"score": [
2
],
"text": [
"This question gets asked here a lot; have a look at [this](_URL_0_) excellent answer by u/kookingpot."
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/3vxb5d/how_were_our_current_units_of_time_agreed_upon/"
]
] | ||
4hkoqv | how end to end cryptography works? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4hkoqv/eli5_how_end_to_end_cryptography_works/ | {
"a_id": [
"d2qegnz",
"d2qn736"
],
"score": [
2,
8
],
"text": [
"There's a mathematical formula with two numbers that you generate on your device. One of the numbers is used to encrypt the message (you can tell that one to the whole world) and the other one is used to decrypt it (you keep... | [] | [] | [
[],
[]
] | ||
ttngd | Can we digitize smells yet? | askscience | http://www.reddit.com/r/askscience/comments/ttngd/can_we_digitize_smells_yet/ | {
"a_id": [
"c4pmixy"
],
"score": [
2
],
"text": [
"It doesn't quite work the same way. Your visual and auditory senses work by interpreting waves of energy. Energy is something we know how to create, or transfer rather. However smell is not quite the same. Smell works by receptors in your nose pi... | [] | [] | [
[]
] | ||
9nqb9s | do adults have more skin than newborn babies? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9nqb9s/eli5_do_adults_have_more_skin_than_newborn_babies/ | {
"a_id": [
"e7o7zad"
],
"score": [
2
],
"text": [
"No just the same as your bones don't stretch out as you get taller and wider. You grow more. "
]
} | [] | [] | [
[]
] | ||
3bbsa6 | Was the backlash against interracial marriage the same as we are seeing against gay marriage? Were states trying to find ways to block it as well? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/3bbsa6/was_the_backlash_against_interracial_marriage_the/ | {
"a_id": [
"csl5otg",
"cslhzaw"
],
"score": [
14,
2
],
"text": [
"Hi there,\n\nI want to apologize, because I have had to remove your question. I figure I owe you some explanation.\n\nAs you may have noticed, the vast majority of posts that responded to your question have been removed. Th... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/wiki/rules#wiki_no_current_events",
"http://www.reddit.com/r/AskHistorians/comments/1jsabs/what_it_means_to_post_a_good_answer_in/cbhsgqx"
],
[]
] | ||
5g5pcy | wastewater treatment and city water systems | I guess I'm just wondering how much of the water that goes down the drain in the shower, sink, washing machine, etc. is actually wasted. What percentage comes back through my city water pipes to use again? I try not to use up a lot of water but I realized I don't exactly understand what my efforts are doing. I live in ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5g5pcy/eli5wastewater_treatment_and_city_water_systems/ | {
"a_id": [
"dapodpf",
"dappv5s"
],
"score": [
2,
4
],
"text": [
"It all comes back eventually....as rain. Once it leaves the waste system, it's cleaned and dumped into nearest body of water, river or lake or ocean. The intake and discharge are not in the same body of water. You intake... | [] | [] | [
[],
[]
] | |
nm9ab | Occasionally I wake up and my arm is numb. Is there a risk of permanent damage? | askscience | http://www.reddit.com/r/askscience/comments/nm9ab/occasionally_i_wake_up_and_my_arm_is_numb_is/ | {
"a_id": [
"c3a77is",
"c3a77is"
],
"score": [
2,
2
],
"text": [
"This constitutes medical advice and we have to remove it.",
"This constitutes medical advice and we have to remove it."
]
} | [] | [] | [
[],
[]
] | ||
afaisq | Regarding statistics, of what significance is the mode? Are there any useful applications? | askscience | https://www.reddit.com/r/askscience/comments/afaisq/regarding_statistics_of_what_significance_is_the/ | {
"a_id": [
"edxqt13"
],
"score": [
8
],
"text": [
"In terms of practical use, the mode is often used as a summary statistic for categorical variables. For continuous distributions, the mode can be used in calculating measures of the [skewness](_URL_3_), such as Pearson's first skewness coefficien... | [] | [] | [
[
"https://en.wikipedia.org/wiki/PERT_distribution",
"https://en.wikipedia.org/wiki/Multimodal_distribution#Mixture_of_two_normal_distributions",
"https://en.wikipedia.org/wiki/Mixture_distribution",
"https://en.wikipedia.org/wiki/Skewness"
]
] | ||
2o3ds4 | wrestling, it's scripted, but is it staged? is that happening in the ring a real fight or are wrestlers really good stuntsmen? and why sometimes blood happens? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2o3ds4/eli5_wrestling_its_scripted_but_is_it_staged_is/ | {
"a_id": [
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"cmjd0za",
"cmjkxes",
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"score": [
14,
2,
5,
3,
2
],
"text": [
"It's staged in that the winner is predetermined but other than that, it's up to the participating wrestlers to work out the \"play-by-play\". \n\nFor instanc... | [] | [] | [
[],
[],
[],
[],
[
"https://www.youtube.com/watch?v=plUvB6zeSsI&t=27s",
"https://www.youtube.com/watch?v=YOhgVEmh0jo&t=90s",
"https://www.youtube.com/watch?v=gkC6wbTW7mY&t=13s",
"http://i.imgur.com/kwdf4YK.png"
]
] | ||
3ib2i7 | how does one get into preforming magic if magicians dont share their secrets? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3ib2i7/eli5_how_does_one_get_into_preforming_magic_if/ | {
"a_id": [
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"cuev46m",
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"score": [
5,
10,
3,
2
],
"text": [
"A magician won't share their secrets to just anyone, you have to work at it to be able to know the in-depth secrets to doing illusions. It's still a rather tight nit operation, ev... | [] | [] | [
[],
[
"https://youtu.be/wUYnKVK0DK0"
],
[],
[]
] | ||
2i9w25 | i have a lisp, but in my head it sounds like i'm pronouncing it properly. why is this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2i9w25/eli5_i_have_a_lisp_but_in_my_head_it_sounds_like/ | {
"a_id": [
"cl07hgx",
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"cl08dek",
"cl08kks",
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"cl09dov",
"cl09p4j",
"cl09qin",
"cl0a6iw",
"cl0ajpj",
"cl0c52g",
"cl0cqzn",
"cl0d1wt",
"cl0diqr",
"cl0ftho"
],
"score": [
171,
10,
2,
12,
... | [] | [] | [
[],
[],
[],
[],
[
"http://www.radiolab.org/story/165190-slow/"
],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[]
] | ||
8tjvfl | why are things that are distant (1 mi+) have a blueish fog? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8tjvfl/eli5_why_are_things_that_are_distant_1_mi_have_a/ | {
"a_id": [
"e181shy"
],
"score": [
3
],
"text": [
"It's the same reason the sky is blue. The particles in the air reflect a blue wavelength of light because they absorb all others. This effect can be seen at large distances because there is enough atmosphere inbetween the observer and the obejct"... | [] | [] | [
[]
] | ||
eyuapz | how are there as many even numbers as there are numbers? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/eyuapz/eli5_how_are_there_as_many_even_numbers_as_there/ | {
"a_id": [
"fgjbb08",
"fgje86g",
"fgjeoc7"
],
"score": [
2,
3,
6
],
"text": [
"Every even number can be written in the form 2k, where k is an integer (whole number). Since there are infinitely many whole numbers and each can be used to generate an even number (by plugging it into ... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/Hilbert%27s_paradox_of_the_Grand_Hotel"
]
] | ||
144tos | what is washington d.c, and why is it the capital if it is not even a state. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/144tos/what_is_washington_dc_and_why_is_it_the_capital/ | {
"a_id": [
"c79ut25",
"c79v2p1"
],
"score": [
7,
3
],
"text": [
"The national capital is intentionally not a state, because any state which was also the national capital would have undue influence in national politics.\n\nSo they took land from several states sort of near the middle of th... | [] | [] | [
[],
[]
] | ||
e8o0wm | how does potassium balance out sodium in maintaining a person's blood pressure? i've read that it has something to do with osmosis across the cell membrane. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/e8o0wm/eli5_how_does_potassium_balance_out_sodium_in/ | {
"a_id": [
"fadfd75"
],
"score": [
5
],
"text": [
"Renal physiologist here.\n\nA lot of evidence is showing that increased potassium intake can help hypertension by lowering sodium in the body. It actually comes as a bit of a surprise, because high potassium elevates aldosterone, a hormone that r... | [] | [] | [
[]
] | ||
4ot94y | Is it possible to have potential energy but be at 0 potential? | Imagine we have a positive test charge in between 2 oppositely charged spheres. At the point exactly between them, the potential should be 0. However I think that the test charge would still move (towards the negative one and away from the positive), meaning it must have potential energy. How is it possible for it to h... | askscience | https://www.reddit.com/r/askscience/comments/4ot94y/is_it_possible_to_have_potential_energy_but_be_at/ | {
"a_id": [
"d4fcb1t",
"d4frztg"
],
"score": [
9,
3
],
"text": [
"You can define potential to be zero wherever you want. It's the *difference* in potential that matters.",
"The force on a charged particle is dependent upon the *gradient* of the potential. A very rough analogy is a bal... | [] | [] | [
[],
[]
] | |
bvdqeo | During WW2, what happened to the pilots still in the air when their aircraft carrier was sunk? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/bvdqeo/during_ww2_what_happened_to_the_pilots_still_in/ | {
"a_id": [
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"text": [
"They would have a number of options, only one or maybe two of them pleasant.\n\nThe first option would be to **land on another carrier**. Of course, this presupposes that there's another friendly carrier to land on, which isn't exactly a guaran... | [] | [] | [
[]
] | ||
1ri1fo | intentional grounding in the nfl | Sometimes they call it, sometimes they don't. What is the deal? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1ri1fo/eli5_intentional_grounding_in_the_nfl/ | {
"a_id": [
"cdngrqs"
],
"score": [
3
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"text": [
"You can probably find a more technical definition elsewhere, but basically, intentional grounding is a penalty committed when a passer (generally the quarterback) throws an incomplete pass to avoid being sacked (tackled behind where the play star... | [] | [] | [
[]
] | |
csjpzi | every so often i get the great idea to stay awake 24 hours to reset my sleep schedule. why is it so difficult to accomplish this? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/csjpzi/eli5_every_so_often_i_get_the_great_idea_to_stay/ | {
"a_id": [
"exf6e0g"
],
"score": [
4
],
"text": [
"Because you need regular sleep. It's the same as if you decided to just stop eating for a week. You'd get hungry regardless of how genuine your desire not to eat."
]
} | [] | [] | [
[]
] | ||
j6xru | speakers and headphones? what makes a cone + magnets produce amazing sound? | Also if anyone wants to add how that sound travels through a small wire (ex, headphones)? Fuckin magnets man, how do they work? ( < -- jokes)
Thanks! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j6xru/eli5_speakers_and_headphones_what_makes_a_cone/ | {
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"If I'm not mistaken, the sound itself doesn't travel through a small wire, but the digital signal that the sound produces does. It's been a while since I've read into this, but IIR... | [] | [] | [
[],
[],
[],
[]
] | |
a5i1lw | how were maths formulae like pythagoras and area of a circle discovered millenia ago - way before people had access to pens, papers, rulers, calculators, computers, a standard maths education etc? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a5i1lw/eli5_how_were_maths_formulae_like_pythagoras_and/ | {
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"text": [
"We did have some of those things (writing utensils and something to write on) otherwise we wouldn't know that they discovered it in the... | [] | [] | [
[],
[],
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Ruler#History",
"https://en.wikipedia.org/wiki/Slide_rule"
]
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372izs | What is the difference between platinum and platinum black? | I've been looking up old "self starting lighters" after watching this video: _URL_0_
I found it really cool and wanted to know what made platinum such a good catalyst. I found a few more videos of a methanol-platinum wire reaction like this one: _URL_1_
What I found interesting was that it appeared as though when you... | askscience | http://www.reddit.com/r/askscience/comments/372izs/what_is_the_difference_between_platinum_and/ | {
"a_id": [
"crjmjox"
],
"score": [
3
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"text": [
"Chemically, there is no difference. A platinum coin or wire and platinum black are all made of pure platinum. Platinum black just has a very small particle size and a very high surface area. Since catalytic reactions occur at the surface of th... | [] | [
"https://www.youtube.com/watch?v=SF1UmiwkIJM",
"https://www.youtube.com/watch?v=FSdBB1vBDKY"
] | [
[]
] | |
9fa8wq | How historically accurate is the Netflix Documentary/Drama “Roman Empire” in terms of the events of Julius Caesar’s life? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9fa8wq/how_historically_accurate_is_the_netflix/ | {
"a_id": [
"e5w1sav"
],
"score": [
224
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"text": [
"Hooo boy. Where to start with this one. I watched this series because I have a dual compulsion to watch both all the Roman things that Netflix puts out, as well as an odd fascination with rock-bottom terrible shows. This one ranks....probably r... | [] | [] | [
[]
] | ||
1w9kes | when i am taking a bath (or in a body of water), why do hundreds of tiny bubbles collect under my arms, legs and bottom? | I love running my hands under my legs and watching the bubbles rise and listening to the sound they make. It's almost like soda carbonation; but what causes this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1w9kes/when_i_am_taking_a_bath_or_in_a_body_of_water_why/ | {
"a_id": [
"cezyp8o"
],
"score": [
2
],
"text": [
"In simple terms water is filled with various gases. Nitrogen, oxygen, etc. \n\nYou and the things on you - are enough to agitate those gases into forming bubbles (salt, things on your skin, excretions, etc). The amount can depend on the temperatu... | [] | [] | [
[]
] | |
lm7eu | By consuming artificial, calorie-free sweeteners can you invoke the same "sugar-rush" reaction that you would, consuming sucrose? | I have been doing a bit of research on artificial sweeteners as of late, particularly saccharin(which seems to be the safest among sucralose and aspartame), and I recall reading(I'm sorry I forgot where) that consuming artificial sweeteners can stimulate the body would enter a sugar rush based off of the sweetness that... | askscience | http://www.reddit.com/r/askscience/comments/lm7eu/by_consuming_artificial_caloriefree_sweeteners/ | {
"a_id": [
"c2ttceb",
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"score": [
2,
2
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"text": [
"A sugar rush is not a real thing, i.e. numerous studies have shown that the consumption of sugar doesn't actually affect behaviour measurably. It's just a placebo effect.\n\nIn which case, of course, artificial sweeteners ca... | [] | [] | [
[],
[]
] | |
1r5gjp | why wouldn't the united states adopt an isolationist stance and save themselves billions of dollars by staying out of war zones? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1r5gjp/eli5why_wouldnt_the_united_states_adopt_an/ | {
"a_id": [
"cdjsbop"
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"score": [
8
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"text": [
"Because the money the US spends on foreign wars does not just disappear. It's funneled into the industries that produce everything needed to wage war - weapons, ammunition, supplies, services... the list is almost infinite. This complex of indust... | [] | [] | [
[]
] | ||
tb2tt | how do physics and philosophy relate with each other? | Hey Reddit. Please explain to me how physics and philosophy relate - I hear it all the time, and have even read about college courses specifying in this subject. Are there any notable examples of physics that have philosophical implications along with it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/tb2tt/eli5_how_do_physics_and_philosophy_relate_with/ | {
"a_id": [
"c4l2qna"
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"score": [
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"text": [
"Basically all science began with philosophy. People asking questions about the nature of existence and the world around them. \n\nThe people who began asking questions about the nature of the physical world are what we now call physicists. It gre... | [] | [] | [
[]
] | |
1c631h | Armies always seem to use tactics that predate their technological advancements (i.e. cavalry in WWI or the line formations of the Civil War). In your area of expertise, what would've been the most effective and tactically sound use of the available technology to win battles | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1c631h/armies_always_seem_to_use_tactics_that_predate/ | {
"a_id": [
"c9ddyqm"
],
"score": [
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],
"text": [
"Stay on defense. In any area of warfare, especially in shooting wars, up to the mastery of air-power, a battle would result in higher casualties for attackers than defenders, when all else is equal. \n\nStarting in the American Civil War, with ... | [] | [] | [
[]
] | ||
1cs1u2 | how come we name storms but not other natural phenomena like earthquakes or tornadoes? | À la Tropical Storm X, Winter Storm Y, Hurricane Z.
EDIT: Everyone's responses are essentially reflecting the same idea: that storms last longer and change locations so they receive names… I still find it a touch bizarre that we don't name other occurrences despite the fact they cause problems that can even outlast st... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1cs1u2/eli5_how_come_we_name_storms_but_not_other/ | {
"a_id": [
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"score": [
12,
2
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"text": [
"First of all, here's why we name storms.\n\nLet's say we have 2 friends talking about a 3rd friend.\nThe first one says: \"Did you hear that the kid with brown hair, white shirt, white shoes, and a green lunchbox had peanut... | [] | [] | [
[],
[]
] | |
fkzvzi | Is there any evidence that ancient humans might have danced or sang to impress a mate? | askscience | https://www.reddit.com/r/askscience/comments/fkzvzi/is_there_any_evidence_that_ancient_humans_might/ | {
"a_id": [
"fkyd4la"
],
"score": [
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"text": [
"What do you mean by ancient humans? We know modern humans do this. Dance and (less frequently) song are used in courtship rituals across virtually all cultures, throughout history; and therefore certainly humans have been doing so at least since ... | [] | [] | [
[
"https://www.researchgate.net/publication/322991062_The_Evolution_of_Human_Dance_Courtship_Rites_of_Passage_Trance_Calendrical_Ceremonies_and_the_Professional_Dancer#pff"
]
] | ||
5lcsny | How were the New World and Asian colonies established? What was the process used to establish a new colony? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5lcsny/how_were_the_new_world_and_asian_colonies/ | {
"a_id": [
"dbvqi5m"
],
"score": [
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],
"text": [
"Your question is really to vague, it's like asking how are cities established... There is no single mechanism. \n\nYou would need to consider multiple aspects:\n\nAre you asking about French, Spanish, British, Portuguese, or another nation as the... | [] | [] | [
[]
] | |
1i6lam | why does dry ground "flood more quickly" than ground that is a little moist? | EDIT: Adding the clarifying question: "Is this a cohesion thing?" | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1i6lam/eli5_why_does_dry_ground_flood_more_quickly_than/ | {
"a_id": [
"cb1h75x",
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"score": [
3,
5
],
"text": [
"Ground that is already moist can already take in more water quickly. \nDry ground has to become moist first, so the water isn't taken up as quickly as with already moist ground. Dry ground can then flood faster, because the... | [] | [] | [
[],
[]
] | |
1nezxt | How do flour worms get their water? | You can some times find a bag of flour being infected with worms. Where do they get their water? especially as the worms grow, I'd imagine it's gonna need water. They are usually burrowed in the flour bag, I don't think moisture in the air is gonna be enough... or is it?
edit: ~~I don't know how to set flairs... Sorry... | askscience | http://www.reddit.com/r/askscience/comments/1nezxt/how_do_flour_worms_get_their_water/ | {
"a_id": [
"cci0j9m",
"cci1386"
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"score": [
4,
3
],
"text": [
"They are probably flour weevils or a related species. \nAccording to this article, they produce much of their water through metabolic processes, probably oxygen dependent processes.\n\n_URL_0_",
"[metabolic water](_URL_0... | [] | [] | [
[
"http://www.purdue.edu/newsroom/research/2012/120221MurdockPICS.html"
],
[
"http://en.wikipedia.org/wiki/Metabolic_water"
]
] | |
1mur17 | How can skydiving airplanes have their doors open up and not go out of control? | askscience | http://www.reddit.com/r/askscience/comments/1mur17/how_can_skydiving_airplanes_have_their_doors_open/ | {
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"score": [
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"text": [
"I am assuming you are thinking about a scenario similar to comme... | [] | [] | [
[],
[
"http://www.waskydiving.com.au/images/skydiving_gallery/cessna_exit_2_large.jpg",
"http://www.tyreso.com/flyg/an28Gryttjom/DSC111.jpg",
"http://1.bp.blogspot.com/_tEQSc_GhGeE/S-sEK-vo1pI/AAAAAAAABwA/SXjai67LxTw/s1600/gbgwr_7857.jpg",
"http://www.shopknots2u.com/sc_images/products/786_large_i... | ||
3debn0 | how the words for the phonetic alphabet were chosen | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3debn0/eli5_how_the_words_for_the_phonetic_alphabet_were/ | {
"a_id": [
"ct4b099"
],
"score": [
2
],
"text": [
"They all start with the letter they represent and are unique enough to be identified even by a partial word. This means, even when static/connection issues/noise make it impossible to hear everything, the message can get through.\n\n\"..meo ech..... | [] | [] | [
[]
] | ||
gf0vw | Interesting math problem that's driving me crazy | There is a random whole number of indeterminate length in front of you. You can only see the ones column (last digit) of it.
How can you determine what this number is? You can perform any mathematical manipulation to it, but you will always only be able to see the ones column (even if it becomes a decimal, you will on... | askscience | http://www.reddit.com/r/askscience/comments/gf0vw/interesting_math_problem_thats_driving_me_crazy/ | {
"a_id": [
"c1n3dr1"
],
"score": [
3
],
"text": [
"Count the number of times you have to subtract 1 until 0 in the visible column is followed by 1 rather than 9? Works only if the starting number is positive, so doesn't fit everyone's definition of \"whole number\".\nI am not a mathematician."
... | [] | [] | [
[]
] | |
50xt6e | how does dunking a hot metal in cold liquid make it harder? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/50xt6e/eli5_how_does_dunking_a_hot_metal_in_cold_liquid/ | {
"a_id": [
"d77s3gq",
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"score": [
12,
3
],
"text": [
"Iron and steel can have a variety of different internal structures - the exact nature of the structure you get depends on a few things, but in iron and steel two of the things that have the biggest influence are carbon cont... | [] | [] | [
[],
[]
] | ||
3qdr6b | why does it seem like people go to jail longer for drug charges than murder? | I read about people getting like 10 years for drugs, but then murder/man-slaughter/drunk driving related deaths sometimes get out after only about a year. How? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3qdr6b/eli5_why_does_it_seem_like_people_go_to_jail/ | {
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"score": [
4,
2,
2,
2,
2,
2
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"text": [
"Because when people deal drugs they cost the government agencies profit, with murder it's just one more cadaver. ",
"Large scale po... | [] | [] | [
[],
[],
[],
[],
[],
[]
] | |
gp46g | Hawking's theory of information conservation in black holes | I saw a documentary the other day about Steven Hawking, and how he had supposedly solved the problem of information being destroyed in a black hole and how the destruction of information was bad. Frankly, his solution sounded idiotic. And that's saying something, when it's coming out of Hawking's speaker box. Basically... | askscience | http://www.reddit.com/r/askscience/comments/gp46g/hawkings_theory_of_information_conservation_in/ | {
"a_id": [
"c1p7gbf"
],
"score": [
5
],
"text": [
"I think the current idea is that the information is \"stored\" on the event horizon of the black hole. \n\n* [Bekenstein bound](_URL_0_)\n\n* [Holographic principle](_URL_1_)\n\n* [Black hole complimentarity](_URL_3_) (and [RRC thread](_URL_2_) d... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Bekenstein_bound",
"http://en.wikipedia.org/wiki/Holographic_principle",
"http://www.reddit.com/r/askscience/comments/g9uhx/are_there_theories_regarding_types_of_matter/",
"http://en.wikipedia.org/wiki/Black_hole_complementarity"
]
] | |
5vyubn | Why are there so many different units of radiation, and how do they differ? | During a recent Wikipedia tab death spiral, I was struck by how many different units we use for measuring radiation-
becquerel, curie, rad, roentgen, sievert... how do they differ? Do different industries/fields use a particular unit for one reason or another? | askscience | https://www.reddit.com/r/askscience/comments/5vyubn/why_are_there_so_many_different_units_of/ | {
"a_id": [
"de5ydlh",
"de6lflv"
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"score": [
89,
6
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"text": [
"The Becquerel and Curie are units of activity. This is just the rate at which a radioactive sample is decaying. They tell you the number of disintegrations happening per unit time.\n\nThe rad is a unit of dose. It's just an... | [] | [] | [
[],
[]
] | |
s4lj3 | okay, i know fighting zombies is kind of a fun concept. but how to explain the incessant rash of zombie-related everything that struck america in the past few years? | Seriously. Without looking anything up, I came up with Shaun of the Dead, 28 Days Later, 28 Weeks Later, Romero's Dawn of the Dead, Romero's Land of the Dead, Zombieland, Resident Evil 1-5, publication of the popular Zombie Survival Guide, The Walking Dead graphic novels and now TV series...
What the undead fuck. Sur... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/s4lj3/eli5_okay_i_know_fighting_zombies_is_kind_of_a/ | {
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17,
7,
6,
3,
3
],
"text": [
"The cycle tends to go like this, something is obscure and underground. At some point, something comes along to bring at least a part of it out into the ligh... | [] | [] | [
[],
[],
[],
[],
[
"http://www.cracked.com/article_19402_6-mind-blowing-ways-zombies-vampires-explain-america.html"
]
] | |
alofqp | Could southern hemisphere countries get something similar to the polar vortex from Antarctica? | Is it a specific situation in the arctic circle? Or could South America/Africa/Australia also face this situation? | askscience | https://www.reddit.com/r/askscience/comments/alofqp/could_southern_hemisphere_countries_get_something/ | {
"a_id": [
"efftlqc",
"efg24fp"
],
"score": [
5,
31
],
"text": [
"The main reason for the Antarctic vortex is the temperature difference between the land and the ocean. The ocean won't fall below about 3C while the land can get down to -50C or lower. This causes enormous updrafts along th... | [] | [] | [
[],
[]
] | |
1lkzbg | Has a nation ever refused to declare war (or use force) and also refused to surrender? | I was reading about the USA's declaration of war against Germany in 1941, and discovered that it was in response to Germany's declaration of war against the USA. Barring minor sea skirmishes in the Atlantic, it seems possible the the USA could have just continued its war against Japan without going to war with Germany.... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1lkzbg/has_a_nation_ever_refused_to_declare_war_or_use/ | {
"a_id": [
"cc0aimt",
"cc0jgnt"
],
"score": [
26,
11
],
"text": [
"Not quite the situation you outline, but something similar happened as Soviet Russia tried to get out of World War I.\n\nTsarist Russia was at war with imperial Germany when the tsar was overthrown in March 1917, but the n... | [] | [] | [
[],
[]
] | |
2i13j7 | If I turn the stove higher, will water boil quicker? | If I turn up the gas on my stove and put it on a higher setting, will the water boil quicker. My friend and I can across this argument while cooking. I said that if the gas is higher, starts bubbling or boiling quicker than a lower gas setting. Who is correct? | askscience | http://www.reddit.com/r/askscience/comments/2i13j7/if_i_turn_the_stove_higher_will_water_boil_quicker/ | {
"a_id": [
"ckxun7g",
"ckxvc5k",
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"score": [
9,
3,
2,
2
],
"text": [
"Yes. A certain net input of heat is required to heat water from room temperature to boiling, and a higher setting on the stove means more power input (greater amount of heat energy... | [] | [] | [
[],
[],
[],
[]
] | |
mg416 | If there was a worldwide EMP, would the Internet lose all it's data? | Discuss. | askscience | http://www.reddit.com/r/askscience/comments/mg416/if_there_was_a_worldwide_emp_would_the_internet/ | {
"a_id": [
"c30moek",
"c30moek"
],
"score": [
2,
2
],
"text": [
"The internet is just millions of computers hooked up together with a network of lines and routers connecting them. The computers and routers that make up the internet would lose their data. \n\nEvery time you go to a website... | [] | [] | [
[],
[]
] | |
6342cc | why can't old people climb stairs | Why is it that most elderly need to use handrails/ canes to get up steps? Is it more linked to the range of motion necessary to lifting a leg that high or is balance the limiting factor, aka is it more decline in the vestibular system versus muscular decline? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6342cc/eli5_why_cant_old_people_climb_stairs/ | {
"a_id": [
"dfr69gu",
"dfr6em7",
"dfr7h11"
],
"score": [
2,
3,
3
],
"text": [
"As we age, our bodies tend to break down. Joints can become stiff and arthritic and bones become brittle. Additionally, our coordination and senae of balance can be affected. Walking up the stairs can b... | [] | [] | [
[],
[],
[]
] | |
1os5tr | Why do we think that space was created during the big bang and not just matter? | How do we know for instance that there isn't just an infinite field of ever expanding space, with occasionally disruptive quantum fluctuations that create a bunch of stuff? | askscience | http://www.reddit.com/r/askscience/comments/1os5tr/why_do_we_think_that_space_was_created_during_the/ | {
"a_id": [
"ccv5kuw",
"ccv5vw7"
],
"score": [
10,
14
],
"text": [
"We can't see to the Big Bang, so we don't know.\n\nThe Cosmic Microwave Background is light that has been greatly red-shifted from the expansion of space to appear very cold, but it was actually very hot plasma. Which surr... | [] | [] | [
[],
[]
] | |
uywgt | Genetically Speaking, how many possible people are there? (or how many possible combinations of genes are still "human") | Presumably there would be a lot, but I was wondering what the likelihood of someone having identical DNA to someone who isn't their identical twin. (For example, is it possible for somebody to be born today who is a genetic duplicate of Ghengis Khan or Che Guevara?) | askscience | http://www.reddit.com/r/askscience/comments/uywgt/genetically_speaking_how_many_possible_people_are/ | {
"a_id": [
"c4ztdex",
"c4zvuop"
],
"score": [
37,
9
],
"text": [
"The human genome has about 4 billion base pairs, of which about 2% are coding. With 80 million things each taking four possible values, the number of combinations is about 10^10^53 possibilities. That's about the square roo... | [] | [] | [
[],
[
"http://en.wikipedia.org/wiki/Genomic_imprinting",
"http://en.wikipedia.org/wiki/Genotype",
"http://en.wikipedia.org/wiki/Allele",
"http://www.ornl.gov/sci/techresources/Human_Genome/faq/genenumber.shtml",
"http://en.wikipedia.org/wiki/Noncoding_DNA"
]
] | |
38migp | why do conservatives claim to detest the government's abuse of power but often defend police brutality? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/38migp/eli5_why_do_conservatives_claim_to_detest_the/ | {
"a_id": [
"crw51f2"
],
"score": [
3
],
"text": [
"Republicans tends to heavily favor military. They view police as a local form of military. \n\nThe real reason is this: Liberals think the system is flawed, which conservatives think that people are flawed. "
]
} | [] | [] | [
[]
] | ||
fv4k4c | why are tears, sweat, and nasal (whatever the right term is) salty? what is the purpose and function? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fv4k4c/eli5_why_are_tears_sweat_and_nasal_whatever_the/ | {
"a_id": [
"fmggyr6",
"fmghy95"
],
"score": [
33,
4
],
"text": [
"The saltiness is how the body extrudes the water. Cells can't actively move water by themselves - they have to kind of *persuade* the water to move by itself. Water loves salt. But water is also socialist - it spreads out b... | [] | [] | [
[],
[]
] | ||
6o3s2v | Why did Germany not fully commit to Operation Sealion (Invasion of Great Britain) during WW2? | Something that's been on my mind lately is of Operation Sealion.
Perhaps there was something we weren't taught (Secondary/High School level here - 17 y/o) or I am simply forgetting;
Why did Germany not fully commit to the invasion of Great Britain, forwarding not only an aerial bombing campaign (Battle of Britain) but... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6o3s2v/why_did_germany_not_fully_commit_to_operation/ | {
"a_id": [
"dkeflpj",
"dkefspr"
],
"score": [
3,
8
],
"text": [
"Because control of the air over the Channel and any landing sites is Sine Qua Non for any landing to have a chance at success or being reinforced. \n\nWithout control of the air any lumbering transports bringing more men and... | [] | [] | [
[],
[
"https://www.reddit.com/r/AskHistorians/comments/57jjzk/why_were_the_germans_not_able_to_cross_the/d8sl2uw/?utm_content=permalink&utm_medium=user&utm_source=reddit&utm_name=frontpage",
"https://www.reddit.com/r/AskHistorians/comments/4vyhgv/how_realistic_were_the_goals_of_operation_seali... |
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