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 |
|---|---|---|---|---|---|---|---|---|---|
dry18g | how do lumens work? how much brighter is one 800 lumen bulb than two 400 lumen bulbs? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dry18g/eli5_how_do_lumens_work_how_much_brighter_is_one/ | {
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"Lumens are like watts, but weighted to only include the light we can see; infrared and below is out, as is ultraviolet and above. So a bulb with twice as many lumens is twice as powerful, as far as we can see. The trick is ... | [] | [] | [
[],
[]
] | ||
15ct1k | "ghost in the machine" | Can someone explain to me "the ghost in the machine" and how it is a counter to Descartes' "mind-body dualism" like I am 5? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/15ct1k/eli5_ghost_in_the_machine/ | {
"a_id": [
"c7lksbh"
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"score": [
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"text": [
"Ill give it a whirl since there are no answers yet. To a 5 year old I'd say the idea is basically like if you were eating alphabet soup. If you had enough \"letters\" you'd eventually get words then maybe sentences, and so on. Ghost in the machin... | [] | [] | [
[]
] | |
2b23n2 | what happens after decapitation? | I've always wandered and i know it obviously cannot be tested in a human form but i am hoping there is some way this can be explained.
Thanks | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2b23n2/eli5_what_happens_after_decapitation/ | {
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"cj11imb",
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"The loss of blood pressure means you pretty much instantly blackout. Any twitching, blinking, etc, is all involuntary motor function.\n\nAssuming the blade actually cuts through the neck properly a gui... | [] | [] | [
[],
[
"http://www.youtube.com/watch?v=rSrIkUXwsNk"
],
[]
] | |
8rx58u | why is icing the injuries a good thing | Since inflammation is a natural process of healing injuries, then why should we use ice to reduce the inflammtion?
It would be helpful if someone can explain this to me. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8rx58u/eli5_why_is_icing_the_injuries_a_good_thing/ | {
"a_id": [
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"text": [
"Because inflammation can hurt. Icing causes blood vessels to restrict, prolonging the inflammation period that comes with an injury. As the area warms, blood will move in and inflammation will occur as ... | [] | [] | [
[],
[],
[]
] | |
9l5iie | why do a large number of companies prefer to pay their employees hourly instead of giving a salary? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9l5iie/eli5_why_do_a_large_number_of_companies_prefer_to/ | {
"a_id": [
"e746lji",
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"score": [
2,
3
],
"text": [
"There are rules regarding who is paid hourly versus who is paid a salary that depend on the nature of the work being done. If you're working on the manufacturing line, you're going to be paid hourly, but if you're a manager,... | [] | [] | [
[],
[]
] | ||
63fg4l | how do large cities not run out of number and letters combinations to put on license plates? what would happen if they did? | Title. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/63fg4l/eli5_how_do_large_cities_not_run_out_of_number/ | {
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"text": [
"Because with a 7 digit license plate, there are over 78 billion unique combinations of letters and numbers. If any licensing agency somehow managed to exhaus... | [] | [] | [
[],
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] | |
3oaqqu | Why did the Curiosity Rover travel 100 million extra kilometers on its way to Mars? | Hello. I read here _URL_0_ that the maximum distance Earth and Mars can have in between eachother is 401 million km, but later read here _URL_1_ that the Curiosity rover landed"*...rover's touchdown target after a 563,000,000 km (350,000,000 mi) journey.*", over 150 million km's more than the maximum distance. Why did ... | askscience | https://www.reddit.com/r/askscience/comments/3oaqqu/why_did_the_curiosity_rover_travel_100_million/ | {
"a_id": [
"cvvok04",
"cvw2pe3"
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"score": [
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3
],
"text": [
"It has to do with the fact that *Curiosity* didn't travel in a straight line. Mars moved from where it was when *Curiosity* left Earth, and was in a completely different location by the time the Rover got to it. *Curiosity*... | [] | [
"http://www.space.com/16875-how-far-away-is-mars.html",
"https://en.wikipedia.org/wiki/Curiosity_(rover)"
] | [
[],
[
"https://en.wikipedia.org/wiki/Opposition_%28planets%29",
"https://en.wikipedia.org/wiki/Hohmann_transfer_orbit",
"https://en.wikipedia.org/wiki/Apsis"
]
] | |
1iwety | Can anyone tell me more about this birth control political cartoon? | [Here's a link to the image.](_URL_0_) It's a man and a woman, presumably married, shooing away a stork carrying a bundle (baby.) I'd circa-date it around 1915 from the clothes.
I'd love to know anything more about it, I'm not doing well searching for it. Who made it, and why? It seems to be anti-birth control but I'... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1iwety/can_anyone_tell_me_more_about_this_birth_control/ | {
"a_id": [
"cb8pgn8"
],
"score": [
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"text": [
"You may want to contact this university. You can see on the left side of the image they have it on display. \n\n_URL_0_"
]
} | [] | [
"http://2.bp.blogspot.com/-unbAbpmx8YQ/TeevoFGct7I/AAAAAAAACAE/mYhfgSqWh8o/s1600/shoo%2Bvintage%2Bstork%2Bpostcard.jpg"
] | [
[
"http://www.case.edu/affil/skuyhistcontraception/index.html"
]
] | |
2865u4 | How is it the French were able to conquer Vietnam and keep it as a colonial holding for so long? | My understanding is that they actually didn't have a very large occupation force, and were rather unprepared for the rebellion, and that the rebels capitalized on this by overwhelming the increasingly isolated French outposts over time, with the outcome of the Battle of Dien Bien Phu being the end result. Despite the l... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2865u4/how_is_it_the_french_were_able_to_conquer_vietnam/ | {
"a_id": [
"ci84pte"
],
"score": [
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],
"text": [
"France conquered Vietnam in 1885 mostly by virtue of superior military technology and a fairly ineffective Vietnamese monarchy. The emperor at the time (Tu Duc) did not understand the danger that the French posed, and the Vietnamese military was... | [] | [] | [
[]
] | |
4o91vr | how did artwork like the mona lisa, the last supper or the statue of david become so much more famous and well known than other lesser known impressive art? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4o91vr/eli5_how_did_artwork_like_the_mona_lisa_the_last/ | {
"a_id": [
"d4ap8zw"
],
"score": [
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],
"text": [
"I'm not familiar with the Last Supper and Statue of David's history, but I do know that the Mona Lisa was stolen right out of the Louvre, and later recovered, which contributed significantly to it's presence in the public's eye."
]
} | [] | [] | [
[]
] | ||
1gsdyp | why is it so cheap to buy items in america vs other areas of the world | Why is it so cheap to buy items in USA vs other areas of the world? e.g. Housing prices, groceries and living expenses.
I currently live in New Zealand where buying an average house costs around $350k-$500k NZD. Why is there such a price difference between the two nations and what are the major influences behind this? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1gsdyp/eli5why_is_it_so_cheap_to_buy_items_in_america_vs/ | {
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"score": [
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"text": [
"I actually prefer the tax in the price so I have the money in my hand when I go to the ... | [] | [] | [
[],
[],
[
"http://www.storyofstuff.org/"
],
[],
[],
[],
[],
[]
] | |
6h9tbf | why is it bad for the government to have access to internet data? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6h9tbf/eli5_why_is_it_bad_for_the_government_to_have/ | {
"a_id": [
"diwmgcs",
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"diwmpel"
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"score": [
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2,
2
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"text": [
"Government agencies that start out with the best intentions, can be politically co-opted over time to have not-so-good intentions. Furthermore, individuals with access to data can easily use that data ... | [] | [] | [
[],
[],
[]
] | ||
6paf48 | Did Hitler kill Atheists amd Agonstics as well? | I know Hitler hated Jews for their religion but what happened to Jews who didnt practice Judaism or didnt even want to be associated with any religion? Were they forgotten about because they didnt practice Judaism?
Would they just call themselfs Polish or whatever country they came from or Israeli? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6paf48/did_hitler_kill_atheists_amd_agonstics_as_well/ | {
"a_id": [
"dknsvve"
],
"score": [
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],
"text": [
"Hi there, your question suggests few misconceptions about the reasons behind the persecution of Jewish people by the Nazis. There is always more to be said, but I think you will definitely find [this fantastic answer](_URL_0_) by /u/commiespacein... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/41ipv6/did_hitler_also_have_a_problem_with_the_jewish/"
]
] | |
3s1dh8 | how long does brain matter survive without perfect conditions? | I have this theory about life that I can't seem to shake, so I need some proof that I am wrong.
I have been taught the brain is basically electric impulses causing reactions to make us do what we do. Billions of connections that in total, create everything that I am.
My question is related to death; since all of our ... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3s1dh8/eli5_how_long_does_brain_matter_survive_without/ | {
"a_id": [
"cwt77e2"
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"score": [
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"text": [
"The concentration of ions around a neuron is very important for it's survival. One way the ionic balance is regulated is through blood supply. A scattered brain will likely have inadequate blood supply, leading to neuronal impairment and death. "... | [] | [] | [
[]
] | |
3u4wnt | hedge funds, venture capitals, and futures trading. | I've tried to research online but I just end up confused. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3u4wnt/eli5hedge_funds_venture_capitals_and_futures/ | {
"a_id": [
"cxc1txu"
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],
"text": [
"Venture capital is money from small groups of investors or individuals who are willing to invest in private companies. \n\nHedge funds are investment funds that theoretically invest to do well if the general market does not. In practice, they are... | [] | [] | [
[]
] | |
6cgfln | What were the major flaws of the Soviet invasion during the Winter War. | Also, how did the technology of the two compare and how useful was Soviet armor in the snow and cold weather. Why was the Finnish army so good? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6cgfln/what_were_the_major_flaws_of_the_soviet_invasion/ | {
"a_id": [
"dhunndr"
],
"score": [
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],
"text": [
"The winter war isn't quite my area of expertise, it's kind of adjacent though, so I'll heavily lean on journal articles and books for this.\n\n > Soviet forces performed dismally in the initial offensive operations during that war. Offensive pre... | [] | [] | [
[
"reflected.in"
]
] | |
7c1ka4 | what is big o, big omega, and big theta notation? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7c1ka4/eli5what_is_big_o_big_omega_and_big_theta_notation/ | {
"a_id": [
"dpmf4g0",
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"dpmq8qe"
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"score": [
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7,
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"text": [
"When you have two sequences or functions, you are often interested in how fast they grow compared to one another. For example, suppose you have two functions f(n) and g(n) that t... | [] | [] | [
[],
[],
[
"https://discrete.gr/complexity/"
],
[]
] | ||
24rf1j | How do fish and other forms of aquatic life find their way into man-made bodies of water? | There is an abandoned granite quarry in my country which slowly filled up with rainwater and now supports some fish and idk what else. Recently, a crocodile was also found in one of the reservoirs in my country. How do these animals find their way into there when they weren't introduced by humans? | askscience | http://www.reddit.com/r/askscience/comments/24rf1j/how_do_fish_and_other_forms_of_aquatic_life_find/ | {
"a_id": [
"ch9zjpt"
],
"score": [
2
],
"text": [
"This one is a big FAQ, so I'm going to link you to the best answer we have on this:\n\n_URL_0_"
]
} | [] | [] | [
[
"http://www.reddit.com/r/askscience/comments/1p11ge/how_do_distant_unconnected_rivers_have_the_same/ccxvrge"
]
] | |
26j0om | What is the difference between a quark and an antiquark? Do they both collide and destroy each-other like antimatter and matter? | askscience | http://www.reddit.com/r/askscience/comments/26j0om/what_is_the_difference_between_a_quark_and_an/ | {
"a_id": [
"chrilh6"
],
"score": [
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"text": [
" > What is the difference between a quark and an antiquark?\n\nQuarks are a type of particle which comes in 6 flavors, and those 6 flavors each have a corresponding anti-particle making 12 unique types of quarks. The quarks and their anti-quarks... | [] | [] | [
[]
] | ||
2zra7f | the first time you smoke weed it has little effects. why? | In my experience, and according to what most of my friends claim, it takes a lot of practice to start getting high on weed: the first times you smoke it, it doesn't do much.
Is it true or just a myth? Why does it happen? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2zra7f/eli5_the_first_time_you_smoke_weed_it_has_little/ | {
"a_id": [
"cplm54t",
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"score": [
3,
2,
2
],
"text": [
"Ok, I'll go for it: the first time I smoked weed was when I was 17 years old. My buddies and I went to a local park and made a gravity bong (this plastic water bottle device that filtered smoke) very ru... | [] | [] | [
[],
[],
[]
] | |
nhj2j | Why is it so hard to perceive what the world would look like with additional eyes on the back of our head? | Or if it is possible, what would it be like? What about eyes all around the head? | askscience | http://www.reddit.com/r/askscience/comments/nhj2j/why_is_it_so_hard_to_perceive_what_the_world/ | {
"a_id": [
"c395m0x",
"c395m0x"
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"score": [
4,
4
],
"text": [
"The mental image we 'see' in our minds isn't a direct representation of reality. It is a huge mess of signals arriving from billions of neurons connecting the cells on your retina with your visual cortex. On its own it does ... | [] | [] | [
[],
[]
] | |
a0v4ak | how is graphene battery better than lithium-ion battery? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/a0v4ak/eli5_how_is_graphene_battery_better_than/ | {
"a_id": [
"eakjvxk"
],
"score": [
8
],
"text": [
"Several ways. First off is the material it's made from. Graphene is the name for a particular structure of carbon atoms. Carbon is plentiful here on Earth. In fact, we've got too much of it in the atmosphere. Lithium, on the other hand, is a comp... | [] | [] | [
[]
] | ||
61o6op | why is poverty level related to diabetes risk? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/61o6op/eli5_why_is_poverty_level_related_to_diabetes_risk/ | {
"a_id": [
"dffywv1",
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"score": [
3,
14,
2
],
"text": [
"Poor people typically buy the cheapest and quickest-to-get foods, which tend to be ones that are high in simple carbohydrates (starch and sugar). These increase diabetes risk. \n\n",
"Type 2 diabet... | [] | [] | [
[],
[],
[]
] | ||
5clrbq | Is there any functional difference at either the hardware or software level between selecting 'restart' to restart your computer, or pressing shut down, and turning it back on? | askscience | https://www.reddit.com/r/askscience/comments/5clrbq/is_there_any_functional_difference_at_either_the/ | {
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"d9y2j02",
"d9y3i6m",
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"score": [
15,
2,
9
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"text": [
"At the OS level, no. The operating system will completely shut itself down either way. Likewise, all the hardware in your system *should* have its state cleared during the restart. A reset signal is se... | [] | [] | [
[],
[],
[
"https://en.wikipedia.org/wiki/BIOS",
"https://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface#Global_states",
"https://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface"
]
] | ||
399aat | why was american pharoah slower than the previous triple crown winner? | So I just saw that the last triple crown winner in the 70's raced the Bellmont stakes faster than American Pharaoh. Why is this considering athletic achievements generally get better each year (e.g. Runners, swimmers, overall athleticism)? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/399aat/eli5_why_was_american_pharoah_slower_than_the/ | {
"a_id": [
"cs1glbj",
"cs1gmf9",
"cs1goev"
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"score": [
2,
3,
8
],
"text": [
"there isn't that much improvement if you're at the top .01% already. each race, you're only completing against that years competitors, not against every previous years competitors. so the fact that he... | [] | [] | [
[],
[],
[]
] | |
7nkyu3 | how do bones heal when they break, and what's the difference between being young or old? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7nkyu3/eli5_how_do_bones_heal_when_they_break_and_whats/ | {
"a_id": [
"ds2mduk",
"ds2wkyz"
],
"score": [
13,
3
],
"text": [
"Your bones are alive. \nWhen your bones aren't broken, you normally have cells called Osteoclasts breaking down the parts of your bones that are worn out, and Osteoblasts rebuilding them. \nEven an Adult will typically re... | [] | [] | [
[],
[]
] | ||
88ga5g | Any good biographies on famous ancient Roman Greek hero's/warriors? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/88ga5g/any_good_biographies_on_famous_ancient_roman/ | {
"a_id": [
"dwktsvx"
],
"score": [
9
],
"text": [
"**5 Greek Warrior-Generals Whose Biographies Will Make You Feel Like a Massive Underachiever**\n\nWe all know the great heroes of Greek epic - the wily Odysseus, the invincible Achilles, the unrivalled Diomedes who cut a swathe through the Trojan... | [] | [] | [
[
"http://www.tertullian.org/fathers/nepos.htm#Iphicrates",
"http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3atext%3a1999.01.0210%3atext%3dAges",
"http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3atext%3a1999.01.0243",
"http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3atext%3a2008.01... | ||
1vacfs | What are the most plausible cosmological models which rule out a "beginning point" like the big bang? | I am a lay person, with an interest in science, but not enough knowledge. I have read that some are skeptical of attempts to pinpoint a "beginning to the universe". I'm an atheist, so don't worry, this is not the kind of "skepticism" you might be assuming. Since neither the big bang, nor the dark matter which is assume... | askscience | http://www.reddit.com/r/askscience/comments/1vacfs/what_are_the_most_plausible_cosmological_models/ | {
"a_id": [
"ceq9u59",
"ceqaiee",
"ceqakug"
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"score": [
10,
5,
2
],
"text": [
"It's funny that you mention you're an atheist to convince people it's not Christian skepticism in the Big Bang - the Big Bang model really took off with LeMaitre, a Catholic priest, and was very well s... | [] | [] | [
[],
[],
[]
] | |
1yznj3 | Can insects have heart attacks? | I know that insects don't have hearts like we do. They have open [circulatory systems with a main dorsal vessel that pumps hemolymph](_URL_0_) using muscular contraction.
Presumably this organ can fail. Is it like a heart attack? Would it be caused by the same types of stimuli as vertebrate heart attacks? | askscience | http://www.reddit.com/r/askscience/comments/1yznj3/can_insects_have_heart_attacks/ | {
"a_id": [
"cfp6pcp"
],
"score": [
34
],
"text": [
"Probably not. The reason that we can get heart attacks is because our hearts don't get nutrients from blood they're actively pumping. Instead, blood in the aorta feeds into the coronary arteries, which supply the muscles of the heart. If somethi... | [] | [
"http://www.cals.ncsu.edu/course/ent425/tutorial/circulatory.html"
] | [
[]
] | |
4f1s2w | what is the difference in sound quality between "mastered for itunes" and an audio cd? | I can download a digital copy of an album that is "Mastered for iTunes" from Apple for $11.99, or I can purchases a physical CD of the same album from Amazon for $8.99 (with free prime shipping), which includes an immediate "Auto Rip" digital download. I can then add the "Auto Rip" digital download, or rip the physica... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4f1s2w/eli5_what_is_the_difference_in_sound_quality/ | {
"a_id": [
"d256i9x",
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"d258jyl",
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"score": [
4,
11,
8,
2,
4
],
"text": [
"\"Mastered for iTunes\" generally means that the music has had the volume of the music squashed to the same level. The volume of quiet passages will have bee... | [] | [] | [
[],
[],
[
"http://images.apple.com/itunes/mastered-for-itunes/docs/mastered_for_itunes.pdf"
],
[
"http://www.exactaudiocopy.de/"
],
[]
] | |
3tv876 | how do car keys wirelessly lock/unlock only your car? | It's always baffled me how when I click the unlock lock/unlock button in a massive parking garage, car manufactures manages to make it so only my car responds. Also, how do they have such good range for only having a little battery? I feel like the remote to my TV only has a range of 15 or so feet. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3tv876/eli5_how_do_car_keys_wirelessly_lockunlock_only/ | {
"a_id": [
"cx9hcvt"
],
"score": [
4
],
"text": [
"They transmit a digital code which only your car responds to.\n\nThey're actually rather more clever than that, because you could record this code and play it back to open a car that isn't yours - codegrabbing - so they change the code each time ... | [] | [] | [
[]
] | |
2kenql | how do i practice singing well? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2kenql/eli5_how_do_i_practice_singing_well/ | {
"a_id": [
"clkkbdj"
],
"score": [
2
],
"text": [
"I used to sing in a barbershop chorus, so maybe I can help! \n\nSo on a piano, you would practice scales, you do the same but vocally. There are different forms of this, the ones we used for practice improved on scales and our vocal range. \n\nI ... | [] | [] | [
[]
] | ||
2lz7th | How did the accretion disk form the stars and planet differently? | If our sun is currently fusing Hydrogen into Helium at it's core, and the earth's core is made mainly of iron and nickel, and if iron and nickel are more massive than Hydrogen, how is it that the core of the sun isn't made of iron? Or an alternet, how did so much iron make it's way to the planet to form it's core and ... | askscience | http://www.reddit.com/r/askscience/comments/2lz7th/how_did_the_accretion_disk_form_the_stars_and/ | {
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"The sun **is** the object with the highest abundance of iron. The sun contains more than 43 x 10^24 kg of iron, which is more than 7 times the total mass of earth. \n\nIt simply isn't so obvious, because there is so much more hydrogen and helium... | [] | [] | [
[]
] | |
fkwsa | Do peripheral nerves and motor neurons renew or repair? | I think I am right in saying the schwann cells of myelin surrounding the axon of the peripheral nerve do repair. Do they do it by splitting or perhaps from a stem cell or some other process?
Does the axon of the periperhal nerves repair , or regenerate (or whatever terminology is correct)
How about the motor neuron,... | askscience | http://www.reddit.com/r/askscience/comments/fkwsa/do_peripheral_nerves_and_motor_neurons_renew_or/ | {
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"text": [
"Neurons do not repair on their own. If you get a deep cut, you risk suffering for nerve damage that can only be repaired through surgery. Even after this surgery, a strange tingling feeling remains in t... | [] | [] | [
[],
[],
[]
] | |
j37tc | can someone please explain my credit score li5? | Specifically, what are the positive and negative influences on the score, but WHY are they positive and negative? Some of course will be obvious (I don't pay my bills, default on loans, my score goes down), but some are not (I pay off a credit card and cancel it, and my score goes down?).
Thanks LI5! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/j37tc/can_someone_please_explain_my_credit_score_li5/ | {
"a_id": [
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"score": [
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"text": [
"part of your credit score is what's known as Credit Utilization %, the point of it is that someone who is currently having trouble paying off their current credit is probably going to have even more of a problem if they have even more credit avai... | [] | [] | [
[
"http://www.reddit.com/r/explainlikeimfive/comments/j2psb/how_does_the_credit_score_work"
]
] | |
1802qj | How has the office of President of the United States changed over time? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1802qj/how_has_the_office_of_president_of_the_united/ | {
"a_id": [
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"score": [
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3,
2
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"text": [
"I'm in a hurry so this will be a bit of a hit-and-run, sorry. Will check the thread later for more specific questions.\n\nScholars of presidential rhetoric and public address have documented a shift in ... | [] | [] | [
[],
[],
[]
] | ||
vuox8 | If the Higgs Boson is discovered, will this change every day life in the future? | askscience | http://www.reddit.com/r/askscience/comments/vuox8/if_the_higgs_boson_is_discovered_will_this_change/ | {
"a_id": [
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"text": [
"We still have to learn how to utilize the physics from the 1930s for everyday purposes before we consider that of 2012. \n\nCould it be that one day we use it for daily purposes? Surely. Can anybody pr... | [] | [] | [
[],
[],
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1nn3sd | how do cryptocurrencies like bitcoin, litecoin, and others work? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1nn3sd/eli5_how_do_cryptocurrencies_like_bitcoin/ | {
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"The description is long and involved and probably not perfectly ELI5; however, I'll try to do my best.\n\nThe first thing to realize is that Bitcoin, Litecoin, and most others all work in exactly the same way; the only difference is a couple of ... | [] | [] | [
[
"http://blockchain.info/block-index/423695/0000000000000014f610524ccc5acc864f3d24b1e699cb683e636e456b660c71",
"Blockchain.info"
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2cfywj | why do lizards run in front of me as i walk on the sidewalk? | Strange question, but has anyone else noticed this? They always try to beat me before I step on them. Is it a territorial thing or what? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2cfywj/eli5why_do_lizards_run_in_front_of_me_as_i_walk/ | {
"a_id": [
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"score": [
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"text": [
"They are just like squirrels that wait until a car rolls by before they dart across the road. They're bored and want to cheat death for fun."
]
} | [] | [] | [
[]
] | |
382p6z | how do terrorist groups like isis convince young girls in western countries that life is better in iraq/syria? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/382p6z/eli5_how_do_terrorist_groups_like_isis_convince/ | {
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"text": [
"Generally, they have luck with any group because of outsider politics. Plenty of people feel marginalized and useless in Western society. Groups like ISIS preach a very well-defined set of social rules, in which these margi... | [] | [] | [
[],
[
"http://www.theguardian.com/world/2015/may/26/french-journalist-poses-muslim-convert-isis-anna-erelle"
]
] | ||
fmuov | How do muscles absorb energy? | Suppose you are a hipster, riding your fixed-gear bike. As any true fixie, there are no breaks. To stop the bike, you exert a force against the pedals with you legs muscles, you work against the crank which takes "effort". The bike comes to a stop without ever losing traction, there is no skidding.
Where did all the k... | askscience | http://www.reddit.com/r/askscience/comments/fmuov/how_do_muscles_absorb_energy/ | {
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"Muscle fibers must contract when the muscles are used. Muscle contraction uses ATP. ATP is the body's currency of energy. It's ultimately produced by metabolism.",
"Your muscles take in the force by... | [] | [] | [
[],
[],
[]
] | |
60wlpa | why does some antivirus protection software (norton, mcafee, etc.) make your computer run worse than it did before? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/60wlpa/eli5_why_does_some_antivirus_protection_software/ | {
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"Antivirus is difficult. It requires a lot of resources and acces... | [] | [] | [
[],
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[],
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"https://youtu.be/bKgf5PaBzyg"
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4j8gbp | What color were Spartan shields? | In the movie 300, the shields were entirely bronze with no painting. Some sources say the shields were red, while others only specifically state the lambda was red. However I don't know where they are getting their information from. I think there's an ancient source describing their cape as red, maybe people are goi... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4j8gbp/what_color_were_spartan_shields/ | {
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"text": [
"First thing to note is that *300* did the shields wrong on purpose. Zack Snyder figured that all-metal shields with the double grip across the middle would look cooler than the real thing. I can't really fault him for that, as he was making a mov... | [] | [] | [
[
"http://www.discovergreece.com/~/media/images/destination-header/t/thermopylae-kamena-vourla/greek-thermopylae-warrior-statue-outside-kamena-vourla.ashx",
"https://www.reddit.com/r/AskHistorians/comments/4ikgfe/how_historically_accurate_is_the_film_300/d2z7xf5"
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4wwnnv | When Sun Tzu released The Art of War, wasn't he worried that enemies would use his own tactics against him? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4wwnnv/when_sun_tzu_released_the_art_of_war_wasnt_he/ | {
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"The short answer to this is that we have no way of knowing for certain why The Art of War was written, how it was initially used, or even if Sun Tzu was actually the author. The traditional version of... | [] | [] | [
[],
[],
[]
] | ||
4m8e10 | In the roman empire, why did the people from the provinces not trust the senate? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4m8e10/in_the_roman_empire_why_did_the_people_from_the/ | {
"a_id": [
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"text": [
"Hm. I don't actually know what you are referring to.\n\nAre you talking about any specific incident or event? Any particular time period? Any specific province? \n\nAre you referring to the Roman Empire (I.e. the time after Augustus, when Rome wa... | [] | [] | [
[]
] | ||
9u7ub5 | Why did Winston Churchill launch the Dardanelles Campaign? | This is something I never understood. Why should they launch an attack in the hilly areas that make up the Turkish coast? Heck, it makes no sense to me when they could simply land near Gaza, Tel Aviv(or Palestine in general) besides the attack on Basra and Mesopotamia(IRL) and walk their way to Konstaniniyye? The Othma... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9u7ub5/why_did_winston_churchill_launch_the_dardanelles/ | {
"a_id": [
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"text": [
"This is slightly modified from an earlier answer of mine, posted [here](_URL_0_)\n\nThe Gallipoli Campaign is, all too often, portrayed in popular culture (games like *Battlefield One* or films like *Gallipoli*) as an independent operation carri... | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/76x9rb/why_did_the_allies_decide_to_land_at_gallipoli/",
"http://www.naval-history.net/WW1Book-RN2-P04.jpg"
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34u0hz | Did most non-Europeans in the British Empire convert to Christianity? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/34u0hz/did_most_noneuropeans_in_the_british_empire/ | {
"a_id": [
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"score": [
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"text": [
"No, definitely not. By far the most populous part of the British Empire was India, where Christianity is a very small minority of only a couple of percent."
]
} | [] | [] | [
[]
] | ||
366nhn | Is it possible to freeze water by surrounding it with ice cubes/blocks? | Let's say there is water inside an aluminum container placed inside a cooler surrounded by ice. | askscience | http://www.reddit.com/r/askscience/comments/366nhn/is_it_possible_to_freeze_water_by_surrounding_it/ | {
"a_id": [
"crb8c2i"
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"score": [
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"text": [
"It certainly is possible to freeze a body of water by having a block of ice act as a heat sink. In order to simplify things we can ignore all additional heat sources/sinks and consider just the liquid ice/water system. The factors that will deter... | [] | [] | [
[]
] | |
4fn6fv | Why do some areas of Earth have far less lightning storms than other areas? | I grew up in Wisconsin and lemme tell you. Extremely loud, scary thunderstorms were pretty common during the warm months.
But I have lived abroad (not in the usa) for over a decade and there's perhaps 1 really bad (scary) lightning storm per summer (at least the places I've lived).
why is there less lightning in ... | askscience | https://www.reddit.com/r/askscience/comments/4fn6fv/why_do_some_areas_of_earth_have_far_less/ | {
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"text": [
"To have lightning you usually need rapid temperature changes in a region with decent humidity. Those conditions are not present at all locations at all times of the year. A thunderstorm usually occurs with intense heating of the (usually humid) g... | [] | [] | [
[]
] | |
cyukzx | how our respiratory system knows, that there is enough oxygen in air to breathe correctly? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/cyukzx/eli5_how_our_respiratory_system_knows_that_there/ | {
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"It doesn’t know. As long as you aren’t in a vacuum, the suction cause by your diaphragm will fill the lungs with whatever gases are around you. From there your blood chemically re... | [] | [] | [
[],
[
"https://youtu.be/cF0rwEd05VY"
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2rxvku | Are the physical remains of the Apollo missions that are still on the moon, are they U.S. government property, or public domain? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2rxvku/are_the_physical_remains_of_the_apollo_missions/ | {
"a_id": [
"cnkgxh5"
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"score": [
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"text": [
"Just so you know, this is a question about *space law*, which above all else is a subset of international law. That means that anything discussed about space law has to be viewed in the context of the enforceability and credibility of internation... | [] | [] | [
[]
] | ||
677pso | how does salt water conduct electricity and normal water does not? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/677pso/eli5_how_does_salt_water_conduct_electricity_and/ | {
"a_id": [
"dgoc7l4",
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"score": [
3,
2,
2
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"text": [
"So salt is composed of two elements, Sodium, a metal and Chlorine, a non-metal which makes NaCl. Metals like sodium form what are called positive ions and non metals like chlorine form negative ions. Th... | [] | [] | [
[],
[],
[]
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7y009a | hiv came from siv, which affected primates...but where did siv come from? how did siv become what it was/is? ultimately, what created hiv? do we know? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7y009a/eli5_hiv_came_from_siv_which_affected_primatesbut/ | {
"a_id": [
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3,
15,
3
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"text": [
"Are you asking for a specific 'ancestor' virus? I'm not sure that we know that, as SIV is quite old. Generally speaking, it is a virus which evolved from earlier viruses (similar to how living organism... | [] | [] | [
[],
[],
[]
] | ||
en14ph | how do sea animals avoid getting swept into the sky during hurricanes like cows do in tornadoes? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/en14ph/eli5_how_do_sea_animals_avoid_getting_swept_into/ | {
"a_id": [
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2
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"text": [
"Some do, more with water spouts than hurricanes, but it’s still possible. That’s why there’s reports of animals raining from the sky dating way back through history. \n\nIt’s rare, but it does happen.",
"most sea animals... | [] | [] | [
[],
[]
] | ||
23viq6 | [META] This is one of the few subreddits that has maintained a high level of quality and professionalism over time, thank you. | Most subreddits generally deteriorate over time, yet this subreddit has maintained itself as a hub of professionalism and quality content. I would like thank each and every member, be them professors or just individuals who are passionate about history, for making this a place for positive thought and discussion. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/23viq6/meta_this_is_one_of_the_few_subreddits_that_has/ | {
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6spqyj | Can somebody help identify a battleship for me? | _URL_0_
I got this photo years ago at an estate sale, because I've always been a history junky and this is the oldest thing i've ever purchased. My uncle had it framed professionally the day i graduated highschool, but I've never taken the time to try and identify it. Any help would be appreciated. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/6spqyj/can_somebody_help_identify_a_battleship_for_me/ | {
"a_id": [
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"text": [
"The ship is an American pre-dreadnought battleship of the *Connecticut* class, though I don't know enough about said class to determine which ship within the class it is. The cage masts are obvious sig... | [] | [
"https://m.imgur.com/a/f6nb7"
] | [
[],
[],
[
"http://www.navsource.org/archives/01/03bbidx.htm"
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a82hxa | In Westerns, it's common to see wanted posters with a reward offered in lieu of an organized, coordinated effort by law enforcement to track criminals down; was this an accurate reflection of how the system worked, or a fictional convention? Who would usually be offering these bounties? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/a82hxa/in_westerns_its_common_to_see_wanted_posters_with/ | {
"a_id": [
"ec8ckjj"
],
"score": [
2
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"text": [
"While you're waiting for someone to answer your question in particular, you might be interested in perusing [the section of the FAQ on the historical accuracy of \"Wild West\" tropes.](_URL_0_)"
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/wiki/historically_accurate#wiki_..._are_.22wild_west.22_tropes.3F"
]
] | ||
2k27xv | How do we know light speed is the universal speed limit? For example, if light moves differently in a gravitational field, we'd never be able to gather any data to the contrary on Earth. | This is something I've been wondering for a long time. However, most of what I can understand (which is written for popular audiences, since my grasp of physics is 2 semesters of college intro courses) when I read about it involves discussing the implications of the light speed limit - not necessarily how we know it. I... | askscience | http://www.reddit.com/r/askscience/comments/2k27xv/how_do_we_know_light_speed_is_the_universal_speed/ | {
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31,
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4,
5,
3
],
"text": [
"We only \"know\" in the sense that it hasn't been proven false yet.\n\nThe idea of *c* being constant in all reference frames is a direct result of special r... | [] | [] | [
[],
[],
[],
[
"http://en.m.wikipedia.org/wiki/Michelson–Morley_experiment"
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[]
] | |
2hguhb | why do computer manufacturers still include usb 2.0 ports alongside 3.0 ports? | If they've already got a USB 3.0 chip in there, and 3.0 is obviously backwards compatible, what's the benefit to them of limiting some ports to the 2.0 standard? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2hguhb/eli5_why_do_computer_manufacturers_still_include/ | {
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"text": [
"The likely answer is to keep manufacturing costs down since few devices need a 3.0 connection.\n\nThere may be some reasons involving including the 3.0 drivers in the OS installat... | [] | [] | [
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26nlwy | How were black ambassadors treated by America during the Civil Rights Era | I've heard that one of the common criticisms leveled at the USA by the Soviets was the terrible treatment of its minority citizens.
Given that during that time period, America would have also been trying to establish political relations with many African nations to maintain an edge over their Soviet rivals, how did th... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/26nlwy/how_were_black_ambassadors_treated_by_america/ | {
"a_id": [
"chsvrzh"
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"score": [
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"text": [
"Copying a post I made on this a few months ago:\n\n > Segregation was a major headache for the State Department from post-WW2 until the passage of the Civil Rights Act. They spent a lot of time soothing ruffled feathers of African diplomats - it... | [] | [] | [
[
"http://www.academicroom.com/article/no-diplomatic-immunity-african-diplomats-state-department-and-civil-rights-1961-1964"
]
] | |
5otj2r | What gives old-time radio its distinctive sound? Would it have sounded similar to contemporary listeners? | Old-time radio recordings all have a distinctive muffled sound to them. Is this audio signature an artifact of the microphones and amplifiers of the day (so a listener at the time would have heard them much as we do) or an artifact of the *recording* technology of the time (so contemporary listeners would have heard th... | askscience | https://www.reddit.com/r/askscience/comments/5otj2r/what_gives_oldtime_radio_its_distinctive_sound/ | {
"a_id": [
"dcncbax"
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"score": [
2
],
"text": [
"It's kind of an \"all of the above\" situation. Poor frequency response and distortion specifications on recording gear, the fact that recording compensation wasn't well understood at the time resulting in difficulty accurately capturing sound to... | [] | [] | [
[]
] | |
24yvec | how has the fcc gone from battling verizon in court to preserve net neutrality to now trying to destroy it, in 3 months? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/24yvec/eli5_how_has_the_fcc_gone_from_battling_verizon/ | {
"a_id": [
"chc0jql"
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"text": [
"I would not say the FCC is trying to destroy Net Neutrality. \n\nThey lost the court case, and in losing the case they lost the ability to enforce regulations on Internet Service Providers (ISPs). Now they can get that ability back but it would t... | [] | [] | [
[]
] | ||
furt3x | What did Ethiopians themselves call their country during the 12th century? | Before modern Ethiopia was created, it was known as Axum, which collapsed by the 8th century. Then Europeans and others began to refer to the territory as Abyssinia around the 15th century. Ethiopia itself started referring to itself as Abyssinia until the first half of the 20th century, when it officially changed its ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/furt3x/what_did_ethiopians_themselves_call_their_country/ | {
"a_id": [
"fmg2zpt"
],
"score": [
21
],
"text": [
"Well, most probably \"Ethiopia\" or at least the local Geʽez and Amharic language version: \"ʾĪtyōṗṗyā.\" The name was already being used internally. Also possibly something along the lines of \"Habeshat.\"\n\nWhile you've followed the typical s... | [] | [] | [
[]
] | |
1zbenc | Are there any "dead" sports? Sports that were huge at one time but then stopped being played? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1zbenc/are_there_any_dead_sports_sports_that_were_huge/ | {
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],
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],
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wog5t | how does boltbus stay in business charging $1 fares? | Seriously. How do they do it and make a profit? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/wog5t/eli5_how_does_boltbus_stay_in_business_charging_1/ | {
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"text": [
"The $1 tickets can be difficult to get sometimes, especially for high demand routes. If I want DC to NYC, I have to get that ticket around a month early. I think BoltBus strives on customers buying tickets within a closer window and paying full p... | [] | [] | [
[]
] | |
2ck1uf | Why do hot things burn us? | I read in another askscience thread that temperature measures the average kinetic energy of the particles in a material. This made me wonder what would cause something hot to burn humans as well and other animals. Also, do different materials burn us at different temperatures? For instance, would 100°C air burn us as e... | askscience | http://www.reddit.com/r/askscience/comments/2ck1uf/why_do_hot_things_burn_us/ | {
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"Hot things burn us because when we touch them or get near them they transfer some of their energy to us. That extra energy causes chemical reactions and damage to our skin.\n\nYes, some materials are better conductors or hea... | [] | [] | [
[],
[]
] | |
fj1kw7 | Rules Roundtable VII: No Personal Anecdotes | Aside from sources, easily one of the most misunderstood rules we have in place on [/r/AskHistorians](_URL_0_) is our rules concerning personal anecdotes, as just what those entail is often subject to great confusion.
### What This Rule Isn't
To start off, here are a few examples of what the "Personal Anecdotes" rule... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/fj1kw7/rules_roundtable_vii_no_personal_anecdotes/ | {
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"text": [
"You know, this brings up a question I've been meaning to ask. Here and elsewhere (specifically John B Lundstrom's books), I've noticed a distinction between interviews versus oral history. What's the d... | [] | [
"https://www.reddit.com/r/AskHistorians",
"https://www.reddit.com/r/AskReddit",
"https://www.reddit.com/r/AskScience"
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[],
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] | |
5asegj | What would a siege in pre-Columbian Mesoamerica have looked like? | Were there siege engines of some sort? were there very effective walls around many cities? would cities be conquered mainly by large numerical advantages? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5asegj/what_would_a_siege_in_precolumbian_mesoamerica/ | {
"a_id": [
"d9ncmvs"
],
"score": [
2
],
"text": [
"You may be interested in this old comment of mine regarding siege warfare in the Late Post classic (i.e., Ye Older Azztek Times): _URL_0_"
]
} | [] | [] | [
[
"https://www.reddit.com/r/AskHistorians/comments/1coe7f/siege_warfare_in_precolombus_americas_how/c9ixz4h/"
]
] | |
2qdvxz | why isn't anything being done about the ddos attacks on psn and xbl? | They've been getting attacked at random by the supposed "lizard squad" for a while now. How come nothing is being done to stop them? Or at least a secure the servers so they can't be DDOS'd? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2qdvxz/eli5_why_isnt_anything_being_done_about_the_ddos/ | {
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"You can't DDOS proof a server, thats why DDOSing is so effective, I bet microsoft and sony are doing their best to track down the attackers, after that they might deal with the hackers themselves (make them disappear) or alert the authorities whi... | [] | [] | [
[]
] | |
6cpmop | how does computer virtualization work hardware and software levels. | I've been reading about virtualization in Computer Organization and Design, and Modern Operating Systems.
It feels like there is a bunch of technical information floating around in my head, mostly unconnected.
Can anyone explain the technical details in a succinct manner? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/6cpmop/eli5how_does_computer_virtualization_work/ | {
"a_id": [
"dhwnwds",
"dhwst4d"
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"score": [
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2
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"text": [
"A physical PC is composed of various hardware bits presented to the OS by the BIOS. A hypervisor is a small piece of software that sits between the physical hardware and the virtual machines that *slices* up the physical har... | [] | [] | [
[],
[]
] | |
57wi4e | Was the Reichstag fire perpetrated by the NSDAP? | The common wisdom I see on the internet, including some people who I would consider to generally be pretty knowledgeable about history, is that it was definitely a plot by the NSDAP to gain emergency powers. However I took a college class a while ago and the professor said it probably wasn't a plot because Goebbels (o... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/57wi4e/was_the_reichstag_fire_perpetrated_by_the_nsdap/ | {
"a_id": [
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"text": [
"The general consensus among historians today is that the NSDAP was not responsible for the fire, but that they were preparing for some type of pretext to expand the emergency powers they already possessed. Several legal measures that greatly expa... | [] | [] | [
[
"http://www.lrb.co.uk/v36/n09/richard-j-evans/the-conspiracists"
]
] | |
bs39mf | what exactly is it that makes the noise of waves on the shore? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bs39mf/eli5_what_exactly_is_it_that_makes_the_noise_of/ | {
"a_id": [
"eoik5s7"
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7
],
"text": [
"It's sound of millions of drops, bubbles and splashes of water hitting rocks, plus sound of billions rocks and sand particles colliding with each other as water moves them. Sound of waves hitting smooth concrete walls is noticeable quieter. And i... | [] | [] | [
[]
] | ||
13w1ul | Why does applying heat to aching muscles help them, and the same question to applying cold to swollen areas? | askscience | http://www.reddit.com/r/askscience/comments/13w1ul/why_does_applying_heat_to_aching_muscles_help/ | {
"a_id": [
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3
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"text": [
"I am not sure why heat helps aching muscles, however the cold helps deal with the problems of the inflammatory response. One of the conditions of the inflammatory response is vasodilation. Vasodilation means increased blood ... | [] | [] | [
[],
[
"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2802457/",
"http://en.wikipedia.org/wiki/Nociceptor",
"http://www.qutenza.com/_docs/qutenza_full_PI_.pdf"
]
] | ||
dqjspv | how does free trade agreements protect local market? | How can free trade impact the local market, specifically, protecting them from what? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dqjspv/eli5_how_does_free_trade_agreements_protect_local/ | {
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"text": [
"Free trade agreements are the opposite of \"protecting\" local markets. A free trade agreement allows goods to cross borders untaxed, so that foreign goods and domestic goods can compete on a (somewhat) even field. If the d... | [] | [] | [
[],
[]
] | |
uzvkg | Why aren't more things nuclear powered? | The only nuclear powered things I know of that are not power plants are submarines and aircraft carriers.
Wouldn't a similar power source make a lot of sense for something like a massive container ship as well? I assume those massive ships are extremely expensive to operate and pollute a lot, wouldn't it make sense t... | askscience | http://www.reddit.com/r/askscience/comments/uzvkg/why_arent_more_things_nuclear_powered/ | {
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"text": [
"It would make sense, but it's prohibitively expensive compared to fossil fuels for container ships and the like. There are nuclear powered ice breakers. ",
... | [] | [] | [
[],
[
"http://gadgets.boingboing.net/2009/01/19/abandoned-nuclear-li.html"
],
[
"http://en.wikipedia.org/wiki/NS_Savannah"
],
[
"http://www.google.com/#q=costa+concordia",
"http://www.reddit.com/user/redfiretruck",
"http://en.wikipedia.org/wiki/NS_Savannah",
"http://www.northpolevo... | |
1p8a2w | why is florida the site of most, if not all shuttle launches in the u.s? why not something with more consistent weather like arizona? | Edit 1: Blew up I guess, sweet.
Edit 2: Apparently I should own KSP... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1p8a2w/eli5_why_is_florida_the_site_of_most_if_not_all/ | {
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"cczvxfo",
"c... | [] | [] | [
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[],
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"http://en.wikipedia.org/wiki/Vandenberg_AFB_Space_Launch_Complex_6"
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[],
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[],
[],
[],
[],
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... | |
9uo4yg | Everyone knows about Roman slavery, and the Transanlantic Slave Trade. But how about slavery in Medieval times? | From what I've heard, slavery mostly died out in medieval Europe among Christians. But what about Muslim slaves under Christian owners? What rights would they have had, how were their daily conditions? How were they treated, and did they have any sort of social mobility. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9uo4yg/everyone_knows_about_roman_slavery_and_the/ | {
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"Many enslaved women in the late medieval Mediterranean were forced into work as wet nurses. This is an e... | [] | [] | [
[],
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[],
[
"https://www.reddit.com/r/AskHistorians/comments/8n19s0/suffering_slaves_and_suffering_serfs_whats_the/dzsqky1/"
],
[],
[],
[]
] | |
4rulfq | how does the us government spending increase year after year when income and corporate tax rates have been dropping (based on charts found on google)? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4rulfq/eli5_how_does_the_us_government_spending_increase/ | {
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"Let's say I'm taxing 100 people 10% of their $100,000 income:\n\n$100,000 x 10% = $10,000\n\n$10,000 x 100 people = $1,000,000 in tax revenues\n\nPopulatio... | [] | [] | [
[],
[
"https://fred.stlouisfed.org/series/FYFSGDA188S"
],
[],
[],
[]
] | ||
5nkghz | why do nfl teams claim they cannot survive without a brand new state of the art stadium? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5nkghz/eli5_why_do_nfl_teams_claim_they_cannot_survive/ | {
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35ycvl | the friendship paradox. how can the average person's friends have more friends then them? | Bonus question: How does this apply to graph theory? It doesn't seem to include any graphs! | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/35ycvl/eli5the_friendship_paradox_how_can_the_average/ | {
"a_id": [
"cr8yk1q"
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"text": [
"Imagine you have six people: Alice, Bob, Charlie, Dave, Eric, and Zorp. A-E are all friends with Zorp but not with each other. Zorp has 5 friends, all the others have 1. On average, each person's friend has more friends than them, because 5 have ... | [] | [] | [
[]
] | |
azvyzw | why won't the vacuum cleaner noise make me go deaf but listening to high volume music (which i can't hear over the vacuum cleaner noise) through earphones will? | Hope it's not a dumb question | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/azvyzw/eli5_why_wont_the_vacuum_cleaner_noise_make_me_go/ | {
"a_id": [
"eiai4ov"
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"score": [
3
],
"text": [
"If the vacuum cleaner noise is that loud it does have the chance to damage you hearing such that you go deaf. So I am not sure what you are basing you assumption on. "
]
} | [] | [] | [
[]
] | |
oixad | Are there any conditions under which men can produce breast milk? | I have heard anecdotal evidence about men lactating in POW camps and other scenarios where a man has become undernourished (though I'm not sure how that would cause it).
Would manual stimulation produce the same effect? | askscience | http://www.reddit.com/r/askscience/comments/oixad/are_there_any_conditions_under_which_men_can/ | {
"a_id": [
"c3hn1oq"
],
"score": [
5
],
"text": [
"It is called Couvade Syndrome when a man experiences the same hormonal effects during pregnancy as women.\n\nActual lactation is also possible;\n\n_URL_1_\n\nPlus, a newborn's body is jam packed with their mother's hormones so some males are born... | [] | [] | [
[
"http://www.lpch.org/DiseaseHealthInfo/HealthLibrary/newborn/newappr.html",
"http://www.scientificamerican.com/article.cfm?id=strange-but-true-males-can-lactate&sc=rss"
]
] | |
8ustor | how do those free movie streaming sites get all of those movies? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8ustor/eli5_how_do_those_free_movie_streaming_sites_get/ | {
"a_id": [
"e1htoc2"
],
"score": [
3
],
"text": [
"It's basically a big international \"collective\" of pirates who upload the content individually to multiple sites at the same time."
]
} | [] | [] | [
[]
] | ||
36dloc | Is it possible to reverse climate change quickly? | As in, not taking 1000 years after cutting off fossil fuels and reforestation. Is there a way we could go back to pre-industrial levels in 50 years? | askscience | http://www.reddit.com/r/askscience/comments/36dloc/is_it_possible_to_reverse_climate_change_quickly/ | {
"a_id": [
"crda708"
],
"score": [
6
],
"text": [
"**Short version:** Just realised this has turned into an essay. The short version is that geoengineering would allow us to counteract some of the dangerous effects of climate change and in theory could act as an \"emergency brake\", but they have... | [] | [] | [
[
"https://www.ted.com/talks/david_keith_s_surprising_ideas_on_climate_change?language=en"
]
] | |
1ywp5y | At what point did 'chroniclers' become 'historians' and what is the difference? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1ywp5y/at_what_point_did_chroniclers_become_historians/ | {
"a_id": [
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"text": [
"A Chronicler and Historian are two very different job descriptions and we still have both working today, though in different forms from the past. \n\nA chronicler primarily compiled current information into a written timeline. This information wa... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Anglo-Saxon_Chronicle"
]
] | ||
9gk3x9 | why is a pin number considered safe with 4 numbers while a password needs 8 chars with numbers and capitals? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9gk3x9/eli5_why_is_a_pin_number_considered_safe_with_4/ | {
"a_id": [
"e64oje2",
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"score": [
8,
100,
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],
"text": [
"I think it's because you only have 3 attempts for PIN where you have unlimited for password. No brute force hack.",
"Because anyone on the internet can have a go and guessin... | [] | [] | [
[],
[],
[],
[
"Outlook.com",
"https://Outlook.com"
]
] | ||
7vsh3m | WW2 Tactics and Doctrine Innovations of the Allies | I am particularly interested in the changes that occurred in Africa and on the Western Front.
Thank you very much! | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/7vsh3m/ww2_tactics_and_doctrine_innovations_of_the_allies/ | {
"a_id": [
"du07480"
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"score": [
2
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"text": [
"Goodness me, this is quite the topic to tackle, and I'm afraid rather beyond my abilities to cast my net both widely and deeply. I can however, offer some information regarding my own research niches, namely British armoured doctrine, and also th... | [] | [] | [
[
"Mk.VI"
]
] | |
cz5x48 | Why didn't the Confederate Army just attack Washington D.C. in 1863, and tried to end the war right then and there by forcing Lincoln to surrender? | [deleted] | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/cz5x48/why_didnt_the_confederate_army_just_attack/ | {
"a_id": [
"eywa2v4"
],
"score": [
29
],
"text": [
"In short, because there was an opposing army trying to prevent them from doing so. In 1862 Lee had moved into MAryland in the hope of isolating Washington, cutting it off from the rest of the Union even if not taking the city itself, so as to ap... | [] | [] | [
[]
] | |
d6d049 | Do the mantle, inner, or outer cores experience tidal effects? If not, why not? And, if so, why don't we constant volcanic eruptions? | askscience | https://www.reddit.com/r/askscience/comments/d6d049/do_the_mantle_inner_or_outer_cores_experience/ | {
"a_id": [
"f0sbcj7"
],
"score": [
5
],
"text": [
"Yes the entire Earth experiences tidal effects in one form or another. Since we are on a telluric planet the effects are not the same everywhere.\n\n & nbsp;\n\nThe mantle is convective but on a timescale much longer than the orbital period of th... | [] | [] | [
[]
] | ||
2l7soh | - with both options made available through evolution, how does the human body prefer/naturally choose how we breathe - through the nose or mouth? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2l7soh/eli5_with_both_options_made_available_through/ | {
"a_id": [
"cls8rw0"
],
"score": [
3
],
"text": [
"The nose tends to prevent bacteria and other stuff from getting into your [body](_URL_0_). Seems like a solid choice. "
]
} | [] | [] | [
[
"http://www.telegraph.co.uk/science/science-news/7730587/Having-a-big-nose-prevents-sniffles.html"
]
] | ||
u6puo | Can Alzheimer's patients form new memories that they recall better than old memories? | So, I was watching Grey's Anatomy. The show portrays a woman with Alzheimer's, I assume fairly advanced. She's been put into a home and has fallen in love with one of the patients there. What struck me as odd was that she consistently recalled her love for the new guy but completely forgot who her husband of 30+ years ... | askscience | http://www.reddit.com/r/askscience/comments/u6puo/can_alzheimers_patients_form_new_memories_that/ | {
"a_id": [
"c4ssau8"
],
"score": [
2
],
"text": [
"You are correct, Alzheimer's is characterized by a primary anterograde memory impairment, while retrograde memory remains more stable until the latter stages of the disease."
]
} | [] | [] | [
[]
] | |
1gpxbu | why wasn't there a nuclear war between the soviet union and the u.s? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1gpxbu/eli5_why_wasnt_there_a_nuclear_war_between_the/ | {
"a_id": [
"camlkkr",
"cankxdu"
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"score": [
4,
2
],
"text": [
"Because they BOTH knew to start a nuclear war would be DUMB.\n\nProblem is some idiot will start one some day.",
"*[mutual assured destruction](_URL_0_)*"
]
} | [] | [] | [
[],
[
"https://en.wikipedia.org/wiki/Mutual_assured_destruction"
]
] | ||
261nhc | How quickly does boiling water sterilize a surface? | Specifically, while cooking. We've all been warned about food poisoning, and I was thinking- if I used a fork to flip/ otherwise handle raw meat, and then use the same utensil to stir pasta, would the fork be sterile after?
(My college self hopes yes, so I can produce less of a mess doing this) | askscience | http://www.reddit.com/r/askscience/comments/261nhc/how_quickly_does_boiling_water_sterilize_a_surface/ | {
"a_id": [
"chmz35i"
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"score": [
3
],
"text": [
"Disclaimer: Don't take any medical advice from reddit, and yes this kind of counts because you made it relevant to yourself. However I'll explain because it's telling you not to.\n\nA common sterilisation technique used in science is autoclaving ... | [] | [] | [
[]
] | |
1nym7o | how is money released into the economy. | When the federal reserve increases the money supply how is the new money it released into the economy without "giving it away". Do they buy stuff and just throw the stuff away. I'm confused. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1nym7o/eli5_how_is_money_released_into_the_economy/ | {
"a_id": [
"ccn9j0u"
],
"score": [
3
],
"text": [
"Contrary to popular belief, the government actually *printing* money doesn't really impact the economy much at all. Nor does the government simply give money away. Money is primarily created through banks lending it to other people.\n\nWhen you... | [] | [] | [
[]
] | |
zfn1e | I read that there is a class of stars called brown dwarfs. They have very low temperature and not enough mass to undergo hydrogen fusion. Why are they considered stars and not gas planets? | askscience | http://www.reddit.com/r/askscience/comments/zfn1e/i_read_that_there_is_a_class_of_stars_called/ | {
"a_id": [
"c645nda"
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"score": [
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"text": [
"The distinction isn't a sharp one, but generally they're considered brown dwarves if they're hot enough to fuse deuterium but not hot enough to fuse hydrogen.\n\nTo quote my friend Dr. Wikipedia:\n\n > Currently there is some debate concerning wh... | [] | [] | [
[]
] | ||
1gnca7 | Based on the latest XKCD strip 'The Pace of Modern Life': did other civilisations and societies also have the notion that their current life was too fast paced? | I find this strip from XKCD to be very intriguing and interesting: _URL_0_
If I'm interpretating it correctly, he puts complaints about our current life being too fastpaced into perspective, and provides a counterbalance for too rosetinted glasses about life in our society a 100 years ago.
Regardless of the fact if I... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1gnca7/based_on_the_latest_xkcd_strip_the_pace_of_modern/ | {
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"Roman poets for example liked to praise the calm, tranquil pace and simple pleasures of rural life. Think the Eclogas of Ovidius (Ovid in English) and similar bucolic works. _URL_0_ So for them, city life was too fast paced... | [] | [
"http://xkcd.com/1227/"
] | [
[
"http://en.wikipedia.org/wiki/Bucolic"
],
[]
] | |
20j7ih | what does a computer do when starting up and how can this process be slowed down? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/20j7ih/eli5what_does_a_computer_do_when_starting_up_and/ | {
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"text": [
"Your operating system is just a large program. Have you noticed that when you open a bunch of programs at once, it slows down a little? When your computer starts up, it needs to open a bunch of little programs at once. There... | [] | [] | [
[],
[]
] | ||
33y5e1 | Do our lungs, being a warm, moist spongy material in a dark cavity, have to constantly fight off mold, mildew, and other similar growths? | Seems like the dark, warm, damp conditions of our lungs would be very hospitable to fungal growths. Is this something our bodies are constantly fighting against, 24/7? | askscience | http://www.reddit.com/r/askscience/comments/33y5e1/do_our_lungs_being_a_warm_moist_spongy_material/ | {
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"score": [
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6,
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"text": [
"Most tissues in our bodies would facilitate growth of microorganisms were it not for our immune system. We spend a tremendous amount of energy making sure our cells have enough glucose/fats/proteins, a ... | [] | [] | [
[],
[
"http://usmanscience.com/12bio/classnotes/respiratory_system_anatomy_files/image014.jpg",
"http://www.atsu.edu/faculty/chamberlain/website/lectures/lecture/introurt.htm",
"http://en.wikipedia.org/wiki/Goblet_cell"
],
[]
] | |
dlr5fk | what exactly is happening when an isp sends a refresh signal to your modem? why does it sometimes improve the connection speed? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dlr5fk/eli5_what_exactly_is_happening_when_an_isp_sends/ | {
"a_id": [
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"text": [
"Over time, the modems at both your end and the ISP end react to noise on the line by slowing down to maintain a stable connection. Resetting the calibration settings on a noisy line can temporarily make the speed faster when... | [] | [] | [
[],
[]
] | ||
dvetwm | Do humans permanently retain some portion of the water they consume or is all of the consumed water eventually lost/replaced? | askscience | https://www.reddit.com/r/askscience/comments/dvetwm/do_humans_permanently_retain_some_portion_of_the/ | {
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"f7f6y15",
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"score": [
5,
10
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"text": [
"You have literally trillions of molecules of water in your body at any given moment, probably more. I don't feel like doing the molar calculations and trying to figure out the right number - lets just settle on 'A number o... | [] | [] | [
[],
[]
] |
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