id stringlengths 5 6 | input stringlengths 3 301 | output list | meta null |
|---|---|---|---|
1822ba | Would the new hydrophobic material weve been seeing online have negative impacts on water treatment plants and the environment? | [
{
"answer": "Generally if it's really hydrophobic it will either sink to bottom or float to the top of the pool of water it's in, making it relatively easy to clean in a treatment plant. Think cooking oil for example. Let it aggregate on top, then scrap it off, easy-peasy.\n\nIf it gets out into the world that'... | null |
3mif30 | why don't human foetuses be small enough to be easily carried and delivered by the mother? | [
{
"answer": "They do come out and grow bigger. But that's a trade off. The smaller they are when they come out, the more likely they are to die after they come out, and the longer they will have to be intensely cared for by their family, rather than being able to exist at least semi-independently. I am sure i... | null |
17t2cd | What is an example of a heartwarming tale from your researched point of history? | [
{
"answer": "Genghis Khan was on the point of sieging a city when he saw a man fall from its walls. The man miraculously survived and Genghis pardoned him and gave him a horse from his own herd (a great compliment in that culture). Will find source when I get home. ",
"provenance": null
},
{
"answe... | null |
1ehhtg | Roman Historians - I'm having trouble wrapping my head around the crisis of the third century, any good book recommendations? | [
{
"answer": "Adrian Goldsworthy's *How Rome Fell* does a pretty good job of it, but to be perfectly honest it pretty much stays confusing.",
"provenance": null
},
{
"answer": "I can talk about developments in ius vulgaris if you'd like but it may get a bit technical. But it could be interesting if y... | null |
32eq6x | Would I be able to communicate with a neanderthal? | [
{
"answer": "You probably couldn't communicate with a homo sapience that didn't share a language with you.\n\nBut then again if we set that as the level of communication you can communcate with your dog so why would a neanderthal be that much harder?",
"provenance": null
},
{
"answer": "Body languag... | null |
d9dovw | How did colonies such as New York grow so large while others like Salem and Plymouth are still small communities? | [
{
"answer": "/u/uncovered-history has provided a [previous answer](_URL_3_) about why Jamestown didn't work out. The town was built on a swamp, which made the nearby seaport town of Norfolk and the adjacent community of the \"Middle Plantation\" (later renamed Williamsburg) to be more attractive settlements for... | null |
2i4ym8 | Is the moons phase different depending on your location on earth? | [
{
"answer": "In the Southern Hemisphere, people see the moon 'upside down' so the side which is shining (sunlit) seems the opposite from the Northern Hemisphere. Full and New moons come at the same time in both hemispheres, but the intermediate phases will be rotated by 180 degrees.",
"provenance": null
}... | null |
6lh4s7 | why is the u.s. so outraged that n.k. continues to test missiles? | [
{
"answer": "North Korea is run by an almost totally opaque and hyper-paranoid military cult that routinely kidnaps foreign nationals, attacks its neighbors, and threatens mass murder over twitter insults. The other nuclear powers are not nearly on that same level of crazy.\n\nJust because you have a gun does n... | null |
18aitc | How many possible universes exist according to multiverse theory? | [
{
"answer": "There's no such thing as multiverse theory in science.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "573880",
"title": "Fine-tuned Universe",
"section": "Section::::Possible naturalistic explanations.:Multiverse.\n",
... | null |
9tgurx | what is sharp and flat in music and how do they differ? | [
{
"answer": "Sharp is going up 1 semitone, Flat is going down 1 semitone. \n\nFor example C# would be 1 semitone higher in pitch than C and Cb would be 1 semitone lower than C",
"provenance": null
},
{
"answer": "So from your previous comment I see you asked about a song being in a certain key. I ... | null |
1v12gr | what is an ip camera, how is it different to a web cam and how is it so easy to hijack? | [
{
"answer": "It's just a normal camera that uploads images to the web constantly for remote surveilance.\n\nThe reason they're easy to hijack is that they typically come unsecured by default -- and they are really easy to find because they tend to contain a certain word in their title or URL, so you just have t... | null |
6lwo65 | how do criminals use small businesses to launder money!? | [
{
"answer": "The point of laundering money is to make money gained from illegal (or illegitimate) sources _appear_ to come from legal (or legitimate) sources. By doing so, you can declare that money as \"legal\" income, pay taxes on it, and spend it without worrying about people wondering where it came from (a... | null |
9wyl57 | Can the CBD part of cannabis influence your reaction time? | [
{
"answer": "Here's a study talking about the interaction between THC and CBD when it comes to a task involving reaction time. It looks like CBD may mitigate some of the negative effects, but in this study THC didn't show any effect on reaction time (based on a really quick read), so who knows.\n\nAlso, this st... | null |
1idfol | when i have a common cold, what physiological process makes me feel cold even at room temperature in the summers ? | [
{
"answer": "Your sense of cold doesn't really work the number on a thermometer. It's actually a really complex calculation your body does that looks at a lot of things like hoe quickly heat is leaving your body and what temperature your body wants to be. \n\nYour body has a built in temperature that it wants ... | null |
9mh8xx | How accurate is it? | [
{
"answer": "#Part 1\n\nThe video isn't that accurate. Let's start with a breakdown.\n\nFirst, the video is produced by Prager University, a non-profit conservative organization that addresses areas such as economics, history, and...politics. Second, the video is hosted by Steven Crowder, a conservative politic... | null |
41th3y | How did the Romans get back the eagles (aquila) from the legion XVII, XVIII and XIX? (Varian disaster) | [
{
"answer": "The eagles were captured during the battle, not hidden by the legions. The eagles were captured by certain tribes out of Arminius' confederation, the Bructeri, Marsi and Chauci respectively, and taken with them to their own lands. \n\n* The eagle of the *legio XIX* was captured by the Bructeri, wh... | null |
n57bk | Holocaust Awareness | [
{
"answer": "Yes.\n\nOne general, I'm not sure if it was Patton or Eisenhower, once commented after moving his troops into a concentration camp, \"if they don't know why they are fighting, they do now.\"\n\nHere are a few quotes from a book I have (\"The history of the holocaust\", Langer):\n\nIn response to cr... | null |
3iduol | How is graphene both a good conductor of electricity and a semiconductor? | [
{
"answer": "Graphene is not really a semiconductor since it has no bandgap, i.e. no energetic spacing between its highest lying filled electron band (the valence band) and the next available energy band (the conduction band). Instead it's sometimes (and perhaps a bit misleadingly) called a \"zero bandgap semic... | null |
ascw29 | Why does the "Fertile Crescent" have such a green reputation? Isn't it mostly just sand? | [
{
"answer": "While there is much to discuss here, [this post](_URL_0_) has a lot of good information on environmental change in that region. I particularly enjoyed the post by /u/Prufrock451, but there are many good contributions.",
"provenance": null
},
{
"answer": null,
"provenance": [
{... | null |
3fazlt | how does the magnus effect work? | [
{
"answer": "[Bernoulli's principle](_URL_0_) basically.\n\nIts a basic consequence of fluid dynamics. Like wings on a airplane, a spinning ball exerts a force on the air, which according to Newton, exerts and equal and opposite force back.\n\n",
"provenance": null
},
{
"answer": "It's to do with wh... | null |
13pr8b | Did any nation/culture even begin to approach the level of sword-making of Japan? | [
{
"answer": "Interested amateur answer: There's nothing supernatural about the quality of japanese swords. They're good, very good, but its not like a western knight would be hopelessly outclassed or anything. \n\nThe quality is paradoxically a result of the low quality of ore available in the japanese home isl... | null |
8r65tf | after several trips to the bathroom with diarrhea and eventual chafing of the wiped area as evidenced by specks of blood on toilet paper, how do these wounds generally not lead to illness by infection? | [
{
"answer": "Your bodies immune system is the answer! There are many things involved and probably some people can explain it better than me, but also you probably could experience an infection especially if your immune system was compromised in some way. The lymphatic system helps to filter the blood and is inv... | null |
1moujr | When a woman dies giving birth, what exactly happens? | [
{
"answer": "The most common is hemorrhaging. There are fairly big blood vessels connecting the placenta to the uterus. During birth the placenta detaches from the uterus, so if anything goes wrong there, she can lose a lot of blood quickly. \n\nAlso possible are heart attacks or strokes induced by the exertion... | null |
5q5tiu | what's the benefit of https on regular websites? | [
{
"answer": "The encryption within HTTPS is intended to provide benefits like confidentiality, integrity and identity. Your information remains confidential from prying eyes because only your browser and the server can decrypt the traffic. Integrity protects the data from being modified without your knowledge. ... | null |
4ntp2b | Ireland and Scotland had strong clan systems from the Dark Ages until the Modern Age. Was this common in other European countries from 500 - 1746? | [
{
"answer": "1746, a bit specific? Was there a reason for this year",
"provenance": null
},
{
"answer": "This is a pretty broad question, and I certainly can't answer all of it, but I'll try to give some impressionistic answers for some parts of Europe in some periods.\n\nFirstly, I think your state... | null |
eaupqm | Did ancient civilians get PTSD? What do we know of the psychological effects of war on noncombatants, and how they dealt with them? | [
{
"answer": "*Content warning: mention of sexual violence, suicide, casual misogyny*\n\n & nbsp;\n\nPTSD is a label we use to describe a group of symptoms connected to trauma and moral injury. The label was created in the 1970s to get Vietnam veterans in the US the support and mental health treatment they neede... | null |
buo7dm | What are some fields in history that have stagnated? | [
{
"answer": "I think 'stagnated' would be going a bit too far, but 'local historiography', ie. the history of villages, cities, local regions etc. is very slow moving compared to 'big historiography' that looks at larger developments. So, for example, in larger-scale early modern social historiography, literatu... | null |
4gtqxu | How were people not constantly dehydrated before modern plumbing? | [
{
"answer": "There is an account floating around somewhere of just how many water carriers there were in Paris in the ~18th century. I am having an impossible time tracking it down amidst the stories, but IIRC [this account of there being 20,000 water carriers in Paris in the early 19th century](_URL_0_) is act... | null |
7vewzv | what exactly is happening during a cold when your sinuses become extremely painful for a moment? | [
{
"answer": "I recently battled a cold and I think I know what you mean. All of a sudden, the inside of your nostrils will hurt for a good 30 seconds. I believe it is because they are dry. Maybe someone with more knowledge in the medical field can help us out?",
"provenance": null
},
{
"answer": nul... | null |
3y22t1 | Did Ethiopians know much about the state of Christendom outside East Africa before regular contact with Portugal was established? | [
{
"answer": "This is a difficult question to answer directly: we have basically no surviving manuscripts from the early/high medieval period in Ethiopia. This will change in a big way in the 13th-14th century, in conjunction with the flourishing of the Ethiopian state and a renaissance in its Church.\n\nThe Eth... | null |
4d2iu7 | Were snare traps ever used by the Vietcong during the Vietnam war? | [
{
"answer": "In general, the traps used by VC insurgents were not as \"primitive\" as they are usually depicted in the popular culture of the war. They were encountered, sometimes as stand-alone traps, sometimes as something the VC would lure into during a firefight - but not in a widespread sense nor something... | null |
1hex4k | who makes malware, viruses, and trojans? | [
{
"answer": "Pretty much anyone with a knowledge of computer programming and code. As to why they make viruses/malware/trojans and their motivations really varies from person to person and could be for a multitude of reasons (everything from politics to \"lulz\").",
"provenance": null
},
{
"answer"... | null |
fgnai7 | How far does sunlight go through space? E.g. does Pluto still have the same bright daytime, or does only part of their sky get lit up? | [
{
"answer": "\\- how far does sunlight go through space?\n\nThis doesn't really differ from light on earth, it will go in a straight line until it hits something. So unless it hits one of the other objects (planets, moons, asteroids, dust, ...) in our solar system first it will reach Pluto. Just like on earth, ... | null |
9sulri | how does esp and crystal ball psychic readings work? | [
{
"answer": "I read in a book on body language that they're experts at it. They start with very vague assumptions that could fit anyone and then read your body language to find out what you is lighting bulbs for you. For example, they they'll act like they're getting something and say guess some relatives until... | null |
2l9r2w | the phrase 'uncle' meaning 'i give up' | [
{
"answer": "It's not really known. But, the romans said a similar phrase, also of an origin that is not known. The best theory i've seen as that you're just calling out - in weakness - for an adult.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "230... | null |
dsiyvj | why is it whenever someone is watching me do something, or if i'm doing something with someone, i suddenly get worse at that thing? | [
{
"answer": "Even if the person watching us is totally cool, a part of us still worries that we'll be judged for the little mistakes we might make. That anxiety in turn causes us to lose some focus and make mistakes that we wouldn't otherwise make.",
"provenance": null
},
{
"answer": "If you put 100... | null |
109uo4 | What was life like for a Babylonian under Nebuchadnezzar II? | [
{
"answer": "If you don't mind my hopping on this to ask;\n\nWas Nebuchadnezzar a popular name at the time? or was the 1st one so fucking awesome that he became many people's namesakes? ",
"provenance": null
},
{
"answer": "Sounds like a difficult but interesting question, do we have any sources fro... | null |
2skjc8 | Were there any large IRA raids/attacks against British forces in Northern Ireland during World war two? | [
{
"answer": "No. The IRA did not have the resources for anything that big. They had run a bombing campaign in England in 1939 before the war but were in pretty bad shape afterwards. Both Éire and Northern Ireland used emergency laws to suppress them and Nazi Germany never provided the help the IRA wanted. \n\n... | null |
1egl4e | Does your body's production of Vitamin D change depending on your dietary intake of Vitamin D? | [
{
"answer": "That particular question either has not been addressed, or it is not documented in this summary. \n\n_URL_1_\n\nHere:\n_URL_0_\n\n\"The evidence indicates that the synthesis of vitamin D from sun exposure works in a feedback loop that prevents toxicity.\"\n\nThis would seem to indicate that your bo... | null |
1diuyk | where do fake twitter accounts come from, and why do they keep following then unfollowing me? | [
{
"answer": "They want you to refollow them. Once followed, they hope that you are more likely to click on their malicious links. Alternatively, if they gain enough followers they can sell the account to some dodgy PR company.\n\nAs for why they find you. Could be keywords in your tweets, or maybe at some point... | null |
3104yz | If I pour boiling water into my metal water bottle, will it kill off most/all of the bacteria inside? | [
{
"answer": "The CDC suggests that you have a rolling boil for 1 minute to ensure the water is safe to drink. Once you take the water away from a heat source (and pour it into your container), it will start to cool, and stop boiling. \n\nI'd stick to soap and warm water, rather that boiling water.",
"prov... | null |
4aze6b | the exsecant and excosecant in trigonometry. | [
{
"answer": "If you're trying to use exsecant to simplify the explanation of tangent, I think you'd be better off with secant instead. Exsecant is just (secant - 1), so it takes one more step to explain. It's also barely ever used.\n\nA *tangent line* to a circle is a line that touches it at just one point (*... | null |
1c3u5z | How did a nation as politically unstable as the Roman Empire last as long as it did? | [
{
"answer": "From my understanding its because even though Rome had many usurpers to the throne, they wanted to be emporer and not destroy the empire itself. I'm going to assume by politically unstable your referring to the 3rd century crisis were there were at least 60 emporers or userpers. The enemies Rome fa... | null |
2xm65n | how do previously prescription-only medications become over-the-counter medications? | [
{
"answer": "After they've been on the market for many years, and proven to be effective and not having any major serious side effects, the drug maker can apply to the FDA to sell the product over the counter. If and when the FDA approves their application, that's all there is to it. ",
"provenance": null
... | null |
6dg2oo | why is it some people can naturally throw a ball (like a tennis ball or a baseball) whilst others seemingly can't? | [
{
"answer": "Form most likely. As in most things, proper form outpaces brute force. \n\nSome people either don't know there is a technique to throwing a ball, or do it badly. I used to basically just go with 'fling my arm as fast as possible and the ball will go farther', and could never understand why other pe... | null |
1wl2jv | how does the boston bomber face the death penalty if the death penalty itself was abolished in massachusetts | [
{
"answer": "He is being tried in a Federal court. Because the bombing is considered an Act of Terrorism, it gets bumped up above the state level.",
"provenance": null
},
{
"answer": "He also committed federal offences which can carry the death penalty. In the US, geography isn't the sole determine... | null |
2u02ug | After America tested its first nuclear weapons (before being dropped on Japan), how did they keep the weapons program a secret after the first test? | [
{
"answer": "You might be interested in a previous question on a nuclear secrecy:\n\n* [Why was the design of Nuclear Submarines not given the same level of secrecy as the development of the nuclear bomb?](_URL_0_) - 2 comments, over 1 year old.\n * One of the commenters is a flaired expert on Nuclear Technolog... | null |
pbtgz | Is there a correlation between introversion and intelligence? | [
{
"answer": "[source](_URL_0_)\n\n > It is usually assumed, with good reason, that intelligence, as defined by Spearman's g, is not correlated with personality. A good deal of work has been done, for instance, on the possible relation between the WAIS, as a good measure of intellectual ability, and the MMPI, a... | null |
jhaac | why do onions make me cry? | [
{
"answer": "Your eyes produce tears to wash away any irritants, such as smoke. Onions absorb chemicals from the ground when they grow, which are released as gas when you cut the onion open. This gas, like smoke, irritates your eyes, leading to the production of tears.\n\nEdit: I do not know what I am talking... | null |
3bmujd | why is the sea clearer on beaches in spain and italy for example rather than england | [
{
"answer": "In warmer climates the top layer of water is much warmer than the deeper water. This results in a more pronounced layer of warm water over the cold, which reduces mixing.\n\nAt least, that’s the explanation I’ve read before. Here’s a [detailed explanation](_URL_0_).",
"provenance": null
},
... | null |
9v37kw | politicians forced to resign instead of getting fired? | [
{
"answer": "It's extending a kindness to allow them to resign with dignity. The implication exists that if they don't, then they'll be fired. In those cases, if someone refuses, it's to take a stance and attempt to become a martyr. ",
"provenance": null
},
{
"answer": "Not just politics. In many hi... | null |
njuz5 | What is the actual benefit a sauna has on your health/body, if any? | [
{
"answer": "Our bodies react to heat and cold. If it's cold out, blood gets shunted away from the periphery and towards the core. (Of course after about 10 mins or so, you get the hunter's response where blood goes back into the periphery so you don't get frostbite and all.)\n\nWith heat, it's the opposite. ... | null |
4aet4y | What did the vikings (8th century) call England? | [
{
"answer": "This is actually a pretty hard question to answer with the specific qualifier of the 8th century, as the name \"England\" didn't become commonplace until the 10th century or so, as we can see from the [England runestones](_URL_1_). In that later period it would be *Ængland* in modern East Norse ort... | null |
6wejr0 | what determines when water is too deep to drive through? | [
{
"answer": "Physics issue, vehicle becomes buoyant and drag from the water exceeds friction from the tires, usually when the water gets several inches above the floorboards.",
"provenance": null
},
{
"answer": "Mostly it's electromechanical & air related.\n\nIf air can't get into or out of your c... | null |
4wjlql | why is the ocean sometimes really dark, like in the north atlantic yet in some places a turquoise colour like in the caribbean or south pacific? | [
{
"answer": "It’s because dead animals and plants sink in water. That might seem obvious, but it means that any nutrients in sea water are rapidly used up by animals and plants and when those organisms die they sink to the bottom taking the nutrients with them. The only way those lost nutrients can be replaced ... | null |
3vn11s | how can a corporation know how much will it gain by naming a stadium in sports? | [
{
"answer": "Tons and tons of market research, such as comparison of how much sales figures of other companies have risen when they have named a sports arena after their company/a product.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "623839",
... | null |
1cwb1q | "I am Arthur, King of the Britons!" "Who're the Britons?!" To what extent did medieval peasants have a sense of nation and state? Did they know of, or care about, their kings and lords? | [
{
"answer": "By the 12th century, you have the Historia Regum Britanniae by Geoffrey of Monmouth and it was quickly adapted by Wace and Layamon into different styles. Basically, it's a creation story that makes Brutus of Troy the founder of Britain, which was an uninhibited island at that point except for mons... | null |
6d9k66 | Were the Parthians/Sassanids extreme in their way of humiliating rivals compared to the Romans or other ancient empires? | [
{
"answer": "The Romans were great fans of crucifixion, which is truly a horrible, agonising way to die. Allegedly the Crassus who got gold down the throat put up 6,000 crosses along the Appian Way after Spartacus' revolt (Appian. 13.120) to punish the rebellious slaves he captured in the third servile war. Not... | null |
4ptfu7 | Why is it that our fingers can support our body weight, but people struggle lifting themselves with their entire arms? | [
{
"answer": "Skeletal system vs muscular system.\n\n",
"provenance": null
},
{
"answer": "Because supporting yourself is easy. You're just putting something between you and the ground and it's not gonna compress (ideally). \n\nIf you want to lift yourself, you have to be able lift your whole body we... | null |
4gam65 | antibiotic resistance? does dosage time matter? | [
{
"answer": "I'm definitely not a healthcare professional, but I do have a double major in bio and micro bio.\n\nThe general question of duration seems straightforward.\n\nHypothetically, yes increasing the time between antibiotics could allow resistance to develop.\n\nYou can imagine that the first mutation th... | null |
5nq3fy | from a tap, why is a low-pressure stream clear, and a high-pressure stream white? | [
{
"answer": "I'm going to go out on a limb here, not sure how correct this is going to be...\n\nLow pressure streams would be clear as they are a solid stream of water, whereas high pressure streams would create cavitation (tiny air bubbles) from the water moving quicker out of the faucet. These tiny air bubble... | null |
4mcll4 | Where did the idea of the U.S. in WW2 having immensely inferior technology and skill come from and why is it so prevalent today? | [
{
"answer": "I've literally never heard that view expressed. Can you give us an example of that view being supported?",
"provenance": null
},
{
"answer": "You can thank a mixture of [Rommel Myth](_URL_3_) style politics that downplayed internal failures in favor of praising the enemy- because rather... | null |
3nkhwg | questions about dinosaur size. | [
{
"answer": " > because an animal any larger than an elephant would collapse under it's own weight.\n\nThis is incorrect. Check your source, or stop reading that source if this is what it is saying. \n\nPart 2: A couple of theories are out there. The levels of CO2 (carbon dioxide, the gas plants breathe) was a... | null |
eblwhm | How did Large Armenian Communities End up in the Levant and Balkans during the Middle Ages? What Roles did they Play in Society? | [
{
"answer": "Armenian dispersal throughout the Middle East and Europe is largely attributed to the Byzantine Empire and their policies towards the many ethnic groups of the empire. The Byzantine Empire, while by virtue being Greek, it was never an empire of Greeks (except maybe for the last years of its existen... | null |
2ssis0 | will we gradually max-out the internet speed? | [
{
"answer": "What you think of as \"internet speed\" is really more about \"how much data can you get per unit time?\" It's not like a car where you can look at it and say \"it's going 60mph.\" In that sense, we can't really do all that much to make the internet go faster except lay more point-to-point fiber ... | null |
u6ujf | When is a person at their physical peak? | [
{
"answer": "Female or male (to your edit)? Females, in their teens. Males I believe in their mid to late twenties. I wish I had a source, but I read something about humans reaching their peak running shape at 27, and interestingly, it takes them until 62 to hit the point they were at 19.",
"provenance":... | null |
241h9x | As sound has a greater velocity when passing through a denser material, would it be possible for sound to travel at the speed of light if the material were dense enough?? .... and if so what could happen if the material were even desnser? | [
{
"answer": "Sound actually has a lower velocity when a material is denser. And no, the sound wouldn't be able to travel faster than the speed of light. In a perfect material, the speed of light would be the maximum speed of sound. ",
"provenance": null
},
{
"answer": "Sound speed actually goes *dow... | null |
oldlt | how was the united states able to win the 1991 gulf war so quickly? | [
{
"answer": "I'll try and go against my nature and be brief. \n\n1). Air power is the only power-You have your army sit still though a 6 month bombing campaign (the first to use revolutionary guided missiles) and see if they can put up a fight after wards. Also it's a freaking desert and Saddam was using conven... | null |
32cjue | how come my wireless mouse works with one battery? | [
{
"answer": "Because the device has a low enough voltage requirement that the batteries are wired in parallel rather than in series. This gives a longer run time, and since people are used to putting two batteries in mic, and there's room enough, they just continued doing that rather than using only one cell bu... | null |
fk5wwl | What explains the denigration in Scots/Anglo relations from having Scottish James VI becoming King of England in 1603 to the Battle of Culloden in 1745? | [
{
"answer": "Essentially the answer is that thinking of both of these events simply in terms of 'England' and 'Scotland' is not the full picture. This answer might get slightly long-winded (what can I say, I'm quarantined!), but hopefully I can help.\n\nFirstly, to simplify things somewhat, James I was crowned ... | null |
9zmbty | what is docker and docker-compose | [
{
"answer": "Docker is a Tool for container virtualization, it is like running a virtual machine but multiple container can use one operation system, making docker more scalable, faster and smaller.\n\nDocker compose is the file with the commands which are getting executed. In there you are using Docker Images.... | null |
3hrl4h | why can someone's teeth feel fine yet they can go to the dentist and have multiple cavities? | [
{
"answer": "Only the very inside of teeth have nerves in them, the rest is just specialized bones. You can't feel if the hard calcium parts have holes in them, you only feel when the nerves start being damaged. ",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedi... | null |
7459r0 | While cleaning out my grandmother's closet, we came across a Nazi armband. Can any WWII/Nazi historians weigh in on the authenticity of this piece? [PICS LINKED] | [
{
"answer": "Based on the tag it is real.\n\nDid your grandmother have a husband, brother, or father who fought in WW2? Nazi paraphernalia often shows up in estate sales because it was often brought home as trophies from the war. Common items include the SS daggers, armbands, flags, lapel pins, and other smal... | null |
1zmtdm | In actual medieval warfare, how likely was it for a sword to get stuck in a body that it was striking? As often as seen in movies? | [
{
"answer": "Very uncommon for the simple fact that the force needed to swing a sword so deep into a man that the blade sticks and is clenched by the flesh is ridiculous. you would more likely see weapons like Axes or Spears be stuck in bodies, though an axe wouldn't be incredibly hard to withdraw. ",
"pr... | null |
pl0x8 | Why were the Sudeten Germans so unsatisfied with being part of Czechoslovakia? | [
{
"answer": " > Were they discriminated against, or was the reason just nationalism (stemming from historical anomosity)? Given that such a vast majority of the Sudeten Germans supported the Nazi party (over 90% if I remember correctly from school), there must surely have been discrimination that turned even th... | null |
4fzbqx | Does how much a person dream effect how rested they will be after waking up? | [
{
"answer": "I'll do this one mostly from memory, I hope others can back me up or correct me if needed.\n\nFor sleep, the REM phase is often considered one of the most important parts of good quality sleep. There have been experiments where they continuously woke somebody up when they were entering REM sleep, t... | null |
3rar35 | When and how did 750 mL become the standard size for wine and liquor bottles? | [
{
"answer": "Moderator note: This is an AskHistorians thread. We expect answers to be in-depth, comprehensive and, more to the point this time around, *actually answering the question the OP asked*. \n\nSo far, we have had to remove endless discussions about *where* 750 mL is a standard size, *whether* it is at... | null |
3tmaf4 | why is the last minute on a washing machine always like 2.5 minutes? | [
{
"answer": "I don't know about yours, but my front loader has an automatic balancing mechanism which sometimes takes several tries to get up to high speed without wobbling. They don't factor this time into the estimate. (But it's a lot better than our top-loader, which would sound a loud buzzer to tell us we... | null |
kqxbj | continuously variable transmissions | [
{
"answer": "I'll give it a go. There are a few different ways of making a CVT, so I'll just stick to the basic principles for now--the idea behind the CVT.\n\nBecause this ended up being pretty long, I'm breaking it up into sections, commenting on my own comment, and linking to them to let you more easily skip... | null |
f64d24 | How does an airplane's tailwind effect it's lift and thrust? | [
{
"answer": "All that matters is your relative speed towards the air surrounding you. That's what your airspeed indicator shows. So, in level, stable flight, a constant tailwind doesn't matter at all. However, when conditions change, it becomes relevant. For example, you want to take off into the wind. Assume a... | null |
4bd84d | Why did soldiers of the Napoleonic era march in neat lines into gunfire without breaking into a run/ ducking? | [
{
"answer": "I would recommend you look at this [previous answer I gave](_URL_0_). If you have any other questions, I would willingly answer them.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "185324",
"title": "Musket",
"section": "Se... | null |
1sxgnq | hi reddit. what is privatization and why is it bad for a country? | [
{
"answer": "Privatization is where the company is sold off by the government to private shareholders. This means that the government is no longer in control of the company. This is bad for energy and service companies, because they can now charge what they want for their services, instead of having the governm... | null |
4d9wha | How disastrous were the Napoleonic Wars to Spain's economy and empire? | [
{
"answer": "There are some very interesting answers in this thread particularly regarding the loss of Spain's empire during this period:\n\n_URL_0_?\n\nBut basically, Spain's economy had been on a downward slop for a long time prior to the Napoleonic wars, and the French coup and invasion severed administrativ... | null |
8e19k5 | How Did The Depiction Of Frankenstein's Monster Become What It Is Today? | [
{
"answer": "There's really not a lot of mystery here. The popular depiction is based on the 1931 Universal Pictures film *Frankenstein* starring Boris Karloff.\n\nEarlier film depictions of the monster are much different. The earliest surviving *Frankenstein* film comes from 1910 and was produced by Edison Pic... | null |
6xjrkm | how do we see the full moon? | [
{
"answer": "The moon doesnt orbit the earth at the same angle that the earth orbits the sun. This means that the shadow of the earth will usually land below where the moon is located. ",
"provenance": null
},
{
"answer": "It explains that in the same article:\n\n > Lunar eclipses do not occur ever... | null |
dl3mi6 | why are astronaut's movements in space seemingly slow motion when there's no air/water resistance to slow them down? | [
{
"answer": "There are a few reasons. Their suits are pressurized. The joints of these suits want to fully extend due to this pressure. This makes it difficult to move and do things, and reduces precision substantially. Not only this, but the suits are quite heavy, and have inertia to slow movements. Lastly, th... | null |
8qvoti | why is it not possible that dinosaurs had beaks that didn’t fossilize? | [
{
"answer": "Many dinos did have beaks, and those beaks fossilized with them. That said, even if no part of the beak remained, it would still be obvious that the had a beak, as we'd be able to see it in the skull structure, the same way we find feather and muscle attachment points on the other bones in the body... | null |
4kfj6f | how does gps work by just asking a satellite what its time is? | [
{
"answer": "Yes - all the satellites have the same time, as they each have an atomic clock on board.\n\nNow, the signal takes an amount of time to travel from the satellite to the GPS receiver.\n\nWhen you look at the times you're receiving from all of the satellites, due to the fact that it takes a certain am... | null |
a7akxd | How were Confederate veterans treated in the decades after the American Civil War? | [
{
"answer": "More of course can be said, but this previous answer of mine on [commemoration I suspect will be of interest for you.](_URL_0_)",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "2296348",
"title": "History of Louisville, Kentucky",
... | null |
6tsf7m | how come so many electronic devices can run the old doom so easily, and can other games like mega man or mario be played on the same devices | [
{
"answer": "Doom was originally programmed for multiple platforms (e.g. PC, Mac...) and pretty much had multi-platform support from the get-go. Nowadays Doom's source code is open, which makes it even easier to make it run on different platforms.\n\nOther games from the same era might not run on other platform... | null |
1ri7su | If you were to defend Louis 16 against his charge of treason, what would you say to defend him? | [
{
"answer": "I think that it would have been impossible to defend Louis whilst keeping your own head.\n\nFrance was scared at this time and lashing out at anyone that was even tagently connected to royalists, so defending Louis would be impossible since the prosecution wanted him dead.\n\nIt must be noted that ... | null |
117nqg | Does it (technically) take an infinite amount of time for an event to occur? | [
{
"answer": "No, it would take 10 seconds.",
"provenance": null
},
{
"answer": "No, things can happen in finite time. The problem you're referring to is known as [Zeno's paradox](_URL_0_). You can add up infinitely many finite numbers, and end up with a finite number.\n\nIn your example, even if w... | null |
7typo4 | why is there so much innovation & improvement with cellular technologies & speed(3g, 4g, 4g lte, 5g), but not with wired speeds? | [
{
"answer": "You would be referring to the US I suppose? Because the cable companies have a monopoly and don't have an incentive to upgrade their service.",
"provenance": null
},
{
"answer": " > What are some of the reasons why cellular internet makes such huge strides while wired internet speeds ha... | null |
buafu8 | how can certain camouflaging octopi and squid emulate their surroundings as close as they do? | [
{
"answer": "I can only answer on a cellular level: the skin cells of the octopus/squid have little packets of pigment stored within the cells. When the squid wants to change color, its brain sends a signal to these cells, which directs some proteins to transport these packets from the interior of the cell to t... | null |
614z2s | What do you think of the accuracy of the book Lies My Teacher Told me by James w. Lowen ? | [
{
"answer": "This question has come up a few times before. You may want to check out [this thread](_URL_1_), or [this one](_URL_0_) for answers about the general accuracy of the book. Are there any other particular things mentioned in _Lies_ which you were wondering about?",
"provenance": null
},
{
... | null |
2a211k | -why do we get darker in the sun but if we leave something outside it gets bleached white? | [
{
"answer": "We get darker in the sun because our body is reacting to the sun damage, making us darker to try to protect us.\n\nRandom objects don't have any such defenses, so the colors are bleached out.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "... | null |
3eb00c | What is holding us back in making more efficient batteries, to store e.g. solar generated electricity? | [
{
"answer": " We are using batteries to store excess renewable energy. Just not the kind of battery you're familiar with. There's something called a flow battery, explicitly designed for grid-scale energy storage. Many companies are racing to commercialize their products to handle the burgeoning demand for ... | null |
29vvm0 | why when i kick a basketball hard enough it creates a lump? | [
{
"answer": "Basketballs are made of a rubberised (elastic) material. Every elastic material stretches and returns to its original length unless you stretch it past what is called 'the permanent stretching point' then the structure of the material is altered too much to go back to its original form. \nBasically... | null |
b48bq4 | what are yield curves in finance | [
{
"answer": "A yield curve is a graphical representation of a bunch of different bonds with the same credit quality, but different maturity dates. It helps you visualize how overall yield (money you will earn) changes as the length of the bond goes up or down.\n\nNormally, as time increases, so does yield. Th... | null |
dlb3gu | From the Siege of Yorktown in 1781, to the signing of the Treaty of Paris in 1783, what was the American Revolution like? Was there any fighting or major events? | [
{
"answer": "The Battle of Yorktown was the end of major engagements between the Continentals and British. Henry Clinton was replaced, North and his government were replaced, and the British and Americans for the most part wanted to see how things went in Paris.\n\nThat did not stop militia on the frontier fro... | null |
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