id stringlengths 5 6 | input stringlengths 3 301 | output list | meta null |
|---|---|---|---|
b28rfs | Why do heavier patients need higher doses of medication? | [
{
"answer": "It relates to body fat content and how lipophilic drugs are. Things like general anaesthetics and ethanol are highly lipophilic, and readily distribute into fat. This basically gives the drug a much larger volume to distribute into, thus the concentration of drug in the blood plasma/at it's target ... | null |
4y93pl | a presidential pardon decades after death | [
{
"answer": "Basically it's just to officially acknowledge that the person was innocent. It brings some justice to the family",
"provenance": null
},
{
"answer": "Well, it officially acknowledges an injustice was done. Otherwise, there will be people out there who will still be insisting that the p... | null |
3p8u20 | Everything else equal, what effect does tire size have on a vehicle's gas mileage? | [
{
"answer": "Changing the tire size will essentially change the gearing ratio. If the car is manual you could get essentially identical function and efficiency by shifting gears appropriately. If the car is automatic then the shifting may be suboptimal depending on whether the speedometer is used to control shi... | null |
b97ri2 | when something breaks the sound barrier. what is the visible cone shaped thing behind it? | [
{
"answer": "Are you talking about [this](_URL_0_)? If so, it's called a vapor cone or a shock collar. It's a cone of water vapor that can form when a plane flies at high speeds (transonic but not necessarily supersonic, although some airflow will be supersonic) through moist air. The area behind the shock wave... | null |
bodfxl | how does oxygen reach the brain? | [
{
"answer": "The red cells in your blood pick up oxygen in your lungs, then the heart pumps the blood around your body, including to the brain.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "546712",
"title": "Neurotoxicity",
"section":... | null |
3zs7kn | what is mb/s and how is it related to mb/s | [
{
"answer": "Mb/s is Megabits per second. MB/s is MegaBytes per second. A Byte is 8 bits, so MB/s is faster by a factor of 8x.",
"provenance": null
},
{
"answer": "In addition to what others have said. Mb/s is typically used when referring to network speeds, where as MB/s is referring to file tran... | null |
17gsp7 | How is it that if Earth exerts a force of gravity on you of 600N, then you also exert a force of gravity on Earth of 600N? | [
{
"answer": "I don't really know what you're asking. If you're wondering why the Earth doesn't move because of the 600 N you're exerting on it, it's because the earth is very big. A force of 600 N on an object the size of the earth causes it to accelerate by 1 x 10^-22 m/s^2 which is VERY small. ",
"provena... | null |
v5v6g | Question regarding Wasps/stinging insects: How did the biology of a stinging insect evolve correctly to produce a formula that would effectively hurt or "sting" its victim? | [
{
"answer": "Its a series of steps and adaptations. They evolve a more potent venom and a stronger stinger when its main prey or attacker devolps to have a natural resistance or thick exoskeleton. Its essentialy a very long process of one-uping the other species. Oh and mods can go ahead and delete this if they... | null |
3z7chd | Why did Christianity (Nestorianism) fail to create a significant and lasting Chinese Christian population, while Islam did? | [
{
"answer": "I can't comment on Islam, but I can explain why Chinese christianity did not last to the modern day (of course, there are plenty of Christians now, but they only date back to European missionary activity).\n\nFirst, about its origins. My source for the first part of this is a tablet in a museum in ... | null |
5npdnp | why are us troops being deployed to poland? | [
{
"answer": "Because Russia. Like it or not, NATO is primarily the Club of Countries the US Promises To Protect. Its ludicrously massive military is what everyone wants on their side.\n\nAfter Russia's adventures in the Crimea and Eastern Ukraine, there are suspicions within NATO that either Poland or the Balti... | null |
1h8c12 | Did civilizations like Rome and Greece participate in espionage? | [
{
"answer": "A contemporary source would be Historia Augusta, but dont expect to find that many details. Chapter 11, part 3-4 in [Historia Augusta](_URL_1_) (Hadrian) ; *He removed from office Septicius Clarus, the prefect of the guard, and Suetonius Tranquillus, the imperial secretary, and many others besides... | null |
5hfedt | how do people build programs inside of minecraft? | [
{
"answer": "Practically the same question was posted less than an hour ago: \n_URL_0_",
"provenance": null
},
{
"answer": "Early computers were basically a bunch of switches that were either ON or OFF. By arranging some amount of switches ON, you would store that information.\n\nIn MineCraft, you... | null |
7ravti | Why were smaller penises desirable in classical civilisation? | [
{
"answer": "You might enjoy /u/PapiriusCursor's answer to [Ancient Greek men thought the ideal male body possessed a small penis. Do we have any idea what Greek women thought?](_URL_0_).",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "20598355",
... | null |
33knqg | How devout were ancient people when it came to their religion(s)? | [
{
"answer": "My reference point is pre-Christian, which has it's own problems, but can shed some light on your question. Ancient Greek religion is largely understood in the socio-cultural terms that /u/Fireproofspider has already referred to. \"Belief\" isn't a term that really enters the religious equation u... | null |
egoo7j | how is the videogame skyrim seemingly endless? | [
{
"answer": "A small portion of the quests are procedurally generated. This means that there are is technically an infinite amount of meaningless fetch quests that reset every \\~3-ish in-game days. Every gathering node is preset and finite, though, they just respawn.",
"provenance": null
},
{
"answ... | null |
55h377 | In terms of anatomy, why are some voices husky and some smooth? | [
{
"answer": "It has to do with your vocal cords. [This link](_URL_0_) (Warning, sort of gross) is a video of a camera recording someone's vocal cords while they talk and sing. The white area in the middle is the vocal cords. They're very easy to damage in the long run, through things like excessive yelling or s... | null |
6amq92 | why is a long one hour walk (4 miles) as tiring as a hard workout, but the walk burns far, far less calories? | [
{
"answer": "Unless you're walking over rough terrain or up steep inclines a 4 mile walk should not be tiring on the level of a strenuous workout. In general your perceived exertion is a good guide for how fast you're burning calories ",
"provenance": null
},
{
"answer": null,
"provenance": [
... | null |
f6vyhv | scars | [
{
"answer": "They would and do exfoliate, eventually. The “lifespan” of a scar is dependent on how deep in the skin it is, and the size of the scar. As time passes, all or parts of the scar tissue will be pushed out. This is why some scars disappear over time, especially with proper skin care. However, if a sca... | null |
3ixs98 | If gravity is the weakest fundamental force, how is it able to have a noticeable impact across such greater distances? | [
{
"answer": "Because there is no anti gravity. The earth is made of a huge number of particles with different electric charges, but on average they all cancel out so that the earth as a whole has no net charge. Because of this the electrostatic attraction of the earth to other planets/stars is very small. In c... | null |
3kqqzl | major differences between eastern orthodox and catholicism besides religious leader's authority? | [
{
"answer": "Authority is the big one.\n\n* Catholics mostly^1 use the Roman Rite liturgy; Orthodox groups tend to have their own liturgies.\n\n* Catholics still say the Holy Spirit proceeds \"from the Father and the Son\"; Orthodox usually draw more subtle nuances and may say the Holy Spirit proceeds \"from th... | null |
1yizor | why do so many law enforcers/military personnel support their governments during popular uprising? | [
{
"answer": "Paychecks and false security",
"provenance": null
},
{
"answer": "The types of people who become cops and military also tend to be OK with authority and think serious disagreement with the government is inappropriate/misguided at best.\n\nSee also: the eternal debate between \"fix the s... | null |
s4ezv | Why can you lift a bigger weight after warming up? | [
{
"answer": "Do we know that this is the case? Or is it that you can lift more weight **safely** after warmup?",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "3821985",
"title": "Complex training",
"section": "Section::::Complex training... | null |
32wy16 | Why are some groups of animals, like rodents, not sexually dimorphic? (or at least as obvious as other mammals) How have social systems pressured changes in sexual dimorphism? How are species that aren't sexually dimorphic able to differentiate sexes before encounters? | [
{
"answer": "How are you defining \"dimorphism\"? Are you approaching it with human bias towards visible differences?\n\nRemember that there are other important sensory and behavioral clues to look for. Smell, in particular during estrus, is quite powerful, as are certain innate behaviors associated with mating... | null |
1s76gj | free radicals, oxidative stress, and anti oxidants. | [
{
"answer": "Oxygen is a corrosive gas. It literally steals electrons from other atoms (ie oxidizes them). Our body uses oxygen this way to forcefully pull electrons through several chemical reactions, such as breaking down digested carbohydrates into biochemical energy. This is why you breathe.\n\nUnfortunatel... | null |
1szzhg | how do other websites use reddit's content without backlash? | [
{
"answer": "It depends on what kind of content you are talking about.\n\nFirst there is the question about what is and what isn't covered by copyright, and also who would own said copyright. Take something like memes. It could be argued that most memes do not reach the level of originality needed, and therefor... | null |
123r7i | What would happen if you could get rid of the Higgs bosons in an object? | [
{
"answer": "The Higgs boson does not give particles mass. There are not Higgs bosons inside ordinary matter.\n\nThe Higgs mechanism is associated with the default value that the Higgs field takes throughout space. The Higgs boson arises as a sort of deviation of the Higgs field from its default value.\n",
... | null |
232en9 | why are steel surfaces relatively inhospitable to bacteria and other germs whereas stuff like acrylic are not? | [
{
"answer": "I believe it has to do with the surface and how porous it is/isn't. Bacteria need tiny holes to hang out in (which also traps stuff they feed on), otherwise they get brushed away easily and there is less available 'food' for them. Also some metals give off ions that apparently kill bacteria. I... | null |
89yfpi | why does visible heat* have a shadow if it isn’t causing an absence of light? | [
{
"answer": "When air gets hot, it changes the density so you have swirling patches of hotter & cooler air.\n\nAir of different densities passes light differently, creating those shadows.",
"provenance": null
},
{
"answer": "Heat wave changes the density of its surrounding medium. Therefore refrac... | null |
7lk6yo | why do car windows get a grid pattern on them | [
{
"answer": "Whenever the glass is rapidly cooled during the tempering process there are these air jets that blow cool air on the glass. This creates distortions in the glass that are almost invisible, until you put on polarized glasses. Different automakers have different (patented) patterns or cooling methods... | null |
ney9s | How does evolution increase biological complexity? | [
{
"answer": "Your 'relatively simple' example is actually perhaps the most complex; the jump from single to multiple cell is probably the most significant. Hence why it took so long (something in the order of a couple of billion years). From there on it's just a case of structural specialisation.\n\nEvolutio... | null |
e3ti4b | how does opening new lines of credit *help* your credit score? | [
{
"answer": "It increases your cap making it easier to maintain a lower percentage use of your overall credit. Lower overall use increases your score.",
"provenance": null
},
{
"answer": "Your credit score is really, really important. It’s a measure of how worthy of credit you are considered, and y... | null |
35vjio | can a communist economy work with a democratic system? | [
{
"answer": "Ideally, all communist nations are democratic, since the idea is that everyone works towards a common goal and everyone is equal. Post- Stalin USSR and post- Mao China were/ are democratic, in that you can vote for the leader. There's only one party, however so this winds up being a choice between ... | null |
1zdw6c | is there an easy explanation or visual for the organization of the us army? | [
{
"answer": "Organisation of ranks? Organisations of armies, corps, divisions, battalions, etc? There's lots of things that fall under this question. ",
"provenance": null
},
{
"answer": "*nice try, Russia*",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"... | null |
ol0ov | If I smell a strong scent while eating, does it influence how I taste the food? | [
{
"answer": "You only have five basic tastes: sweet, sour, salty, bitter and umami. Everything else is smell, which is why things taste bland when you're congested.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "10591",
"title": "Flavor",
... | null |
2glaao | French (or Allied) perspective of WWI trenches | [
{
"answer": "You could try Charles Carrington's A Subaltern's War or Guy Chapman's A Passionate Prodigality or Robert Graves Goodnight To All That.\n\nI'm afraid these are British (and may be hard to come by), I don't know of any French ones.\n\nAlso, since its the centenary, quite a lot of diaries have been up... | null |
2tkszs | Is there a part of the brain that controls the perception of time? | [
{
"answer": "Great question, and the simple answer is that many different parts of the brain help you to perceive time... because time is crucially important for many types of behaviors we engage in.\n\nOne area of the brain, the [suprachiasmatic nucleus \\(SCN\\)](_URL_0_) affects circadian rhythms -- tracking... | null |
2ucg1d | why do we not all adopt a race-nationality identification like african-american (ex. asian-australian)? | [
{
"answer": "what would be the purpose of this? except to further create race/ethnicity issues. ",
"provenance": null
},
{
"answer": "It's too broad. Under that you could say I'm a European-American, but to be honest I don't really see myself as European at all despite my ancestry. I just wish we ... | null |
664iv4 | why are hand dryers in public restrooms considered more hygienic than paper towels? having forced air blowing germs all over the place doesn't seem very hygienic at all. | [
{
"answer": "It turns out that you are correct. Not only do they blow germs from outside the blower... What happens when someplace is dark, warm, and moist? Mold grows. So you're getting mold spores and waste from INSIDE the dryer on your hands, too.\n\n_URL_0_\n",
"provenance": null
},
{
"answer": ... | null |
smlbo | the different divisions of the nervous system. | [
{
"answer": "The Nervous System(NS) is composed of 2 major divisions which are: \n\n(1) **The Central NS**; which is made up of the brain and the spinal cord. They are *both enclosed in bony structure* (skull and vertebra) because of their importance. They control either voluntarily or involuntarily almost all ... | null |
e5i60m | How do mitochondria change their internal proton count to initiate electron chain transfer ? | [
{
"answer": "By that, I assume you’re talking about the proton gradient? In which case the ions cross the complexes that are in the inner membrane, and move into the inter membrane space. Those ions of course come from the NADH that oxidate into NAD+ when the come in contact with the complexes, passing their el... | null |
5wrtwd | why couldn't giant mirrors (like the entire industrialized world focusing on producing giant mirrors) eradicate global warming by reflecting the suns rays for a while? | [
{
"answer": "How would you make those mirrors?\n\nIn some kind of industrial plant, right?\n\nAnd to smelt all that glass you'll need some big natural gas burners.\n\nAnd you'll burn a lot of it which will produce an extraordinary amount of carbon in the atmosphere.\n\nWhen you're all done you'll have some grea... | null |
187w20 | How did powerful families come by their power in the first place? | [
{
"answer": "I can't talk about the Rothschilds or the like, but I certainly can talk about [the Tudors](_URL_5_) and [the Plantagenets](_URL_1_) and the like. \n\nHenry Tudor, who became King Henry VII of England, of the House of Tudor, was the victor of the [the Wars of the Roses](_URL_3_) between the House o... | null |
1ptsiv | Sibling birth order: does it affect anything? | [
{
"answer": "The only thing I know of is the potential link between fraternal birth order and male sexual orientation.\n\n_URL_0_\n\n > In several studies, the observation is that the more older brothers a man has, the greater the probability is that he will have a homosexual orientation.[1] It has sometimes be... | null |
4y1uyc | what's going on in milwaukee ? | [
{
"answer": "A young African American man was being pursued by the Police. He displayed and aimed a weapon at the Officer. He was promptly shot. He passed away. The community rioted since their perspective is that any shooting under any condition is unlawful. As it turns out the young man has a record and ... | null |
1n93hn | Maximum rotation of a pulsar | [
{
"answer": "Speed of light is always a limit, but not here. Here, the limiting factor is the fact that at ~1500 rotations per second, gravitational radiation would release more energy than accretion could compensate. For an average 12km pulsar, that's less than half the speed of light, and even that's pushing ... | null |
1e8xe9 | Are animals immune to poison ivy? | [
{
"answer": "Humans are generally allergic to an oil in poison ivy called urushiol. Other animals are not affected, and many actually eat poison ivy. Sources: [1](_URL_1_), [2](_URL_0_)",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "3255767",
"... | null |
1mhd6y | What rate would glaciers be growing or melting without human intervention? | [
{
"answer": "Before I start, I'm no glaciologist, but I can address some of your points and maybe hope that someone more knowledgeable can come along and set me straight if I get anything wrong, and maybe add some sources...\n\nIt's important to realise that *all* glaciers are melting. Due to the huge pressures... | null |
a6j4c3 | why is a p/e ratio called price to earnings and not just price to profit? | [
{
"answer": "Profit can vary wildly from one reporting period to another. So many aspects of business can impact it both positively and negatively. In addition some things might lower profits during only one quarter, which if you only tracked profits might make it seem the company had begun performing poorly. \... | null |
939pt1 | how does the internet’s wayback machine work? | [
{
"answer": "Correct me if I'm wrong, but this is how previous projects that were similar worked. They have bots (automated software) that crawl the web looking at different webpages and archiving them. Every time it takes a snapshot of a webpage (usually including its source code and, if I remember right, copi... | null |
198fu1 | what is "sequestration" in the context of current events? | [
{
"answer": "Basically its been decided that the US has too much debt, were spending too much money. To fix the economy, many think that the US Government has to start paying off some of the debt that it has been racking up. There are two ways to do this, either increase the amount of money that it makes or cut... | null |
4z0c0q | Did Alexander the Great really fight in every battle and siege he waged? | [
{
"answer": "Alexander the Great by Philip Freeman is a good read. It's directed at laymen and thus is less dry than most strictly academic works. I can only answer for what Freeman's work says, so if he was wrong, I hope someone can post a correction. \n\n1. Yes, according to the sources we have he fought in a... | null |
7n4nn8 | how is the criterion collection able to restore movies that are 50 plus years old to blu ray quality? | [
{
"answer": "35mm film still has more detail contained on it than any digital camera can capture. It captures far more texture and nuance, this is why some directors (Tarantino being a popular example) still use \"real\" film. This is comparable to the old records vs. digital format debate in audio recordings... | null |
2gnxl5 | Has there been any research into the origin of viruses that cause the cold? | [
{
"answer": "Human Rhinoviruses are so different from any other kind of rhinovirus that it gets really difficult to work out which animals we got it from. The truth is, it probably evolved from human enteroviruses that live in the gut, and merely adapted itself to a new niche.\n[Here is an article for you]( _UR... | null |
1g8exs | how can a judge make a decision without letting his own beliefs and opinions interfere with his decision? | [
{
"answer": "A judge is allowed to use the wisdom picked up from her life. There is no bar against it. \n\nA judge is often called on to judge things like credibility--out of the two witnesses with conflicting testimony, which witness does the judge believe more? Usually, at the end of an evidentiary proceedi... | null |
9jxrts | Why is there an EpiPen (and generic alternatives) shortage? | [
{
"answer": "EpiPens are a medical device. Medical devices don't really have a \"generic\" regulatory option so any company that decides to sell a EpiPen knock-off needs to do all the testing over again except less testing for the drug. \n\nMoreover, some companies decide to file patents around the device compo... | null |
5f8lp1 | why do we sometimes, out of the blue, have the urge to breath deeply? | [
{
"answer": "When at long periods of rest your body can start to breath less and less l. After a time your brain goes fuck I need air and tells your lungs to reset themselve l. This can also be the cause of yawning sometimes (not the only cause thow)",
"provenance": null
},
{
"answer": "I believe it... | null |
1f1alj | How did American politics move so far to the right? | [
{
"answer": "Depending on how you define left/right American politics really aren't that far right. In America the far right is usually classified as being small government. Reagan's quote, \"Government isn't the solution to the problem. Government **IS** the problem.\" encapsulates this well. If that is an acc... | null |
7wb8u7 | How exactly does fluticasone nasal spray work? | [
{
"answer": "[From the package insert:](_URL_0_)\n\nFluticasone propionate is a synthetic trifluorinated corticosteroid with anti-inflammatory activity. Fluticasone propionate has been shown in vitro to exhibit a binding affinity for the human glucocorticoid receptor that is 18 times that of dexamethasone, almo... | null |
14ewe6 | If a human had to live on only one food (eating as much as necessary, but all the same thing), what would the best to live off? (Assume otherwise healthy adult). | [
{
"answer": "I may be mistaken, but I read an article that said a human could live off baked potatoes and butter indefinitely as it provides all the necessary nutrients",
"provenance": null
},
{
"answer": "There are several existing threads about this.",
"provenance": null
},
{
"answer":... | null |
94f7me | WW2 buffs, were there any instances of any bombers doing gunships runs like a AC-130 would? | [
{
"answer": "The short answer to this is \"No\". There wasn't a comparable weapon - an aircraft designed for heavy, air-to-ground fire over long durations - to the AC-130 gunship during World War II. The AC-130's predecessor, the AC-47 \"Spooky\", or more popularly, \"Puff the Magic Dragon\", while using the C-... | null |
21dur8 | When (or how) does a religion become mythology? | [
{
"answer": "Technically speaking, every religion have mythology (a set of myths and stories), but in common use, the word *mythology* is typically used for the myths of religions which have no more active followers. So in short, Norse religion became mythology when the Norse became Christianized.\n\nA living r... | null |
3qyblt | what would have happened in china if you got pregnant with a second child? | [
{
"answer": "The one child policy wasn't as rigidly enforced as people may think.\n\nI don't know the exact number, but I think the average family size in China since the policy started is something like 1.5 children.",
"provenance": null
},
{
"answer": "You would pay a one time fine at the birth of... | null |
1x3l6e | Did professional assassins exist in medieval Europe? If so, where would they be trained? How would one become an assassin? | [
{
"answer": "If I may ask a question in this thread relevant to the main question -\n\nDid any of the holy orders have people trained to fulfill the roles of assassins/spys during the medieval period?\n",
"provenance": null
},
{
"answer": "I think I can probably answer the question by answering a sl... | null |
4mgw1b | why is saying hello to people socially so important ? | [
{
"answer": "It isn't. But it's the most socially neutral equivalent of a greeting. Greetings or acknowledgement at first meets are important. If you don't acknowledge someone you are sending pretty much the opposite signal of a greeting, and depending on the person that can be a can of worms. There are tons ot... | null |
14fomq | What percentage of the worlds land mass is used for the production of food? | [
{
"answer": "153,335,392,000 Hectares are used for food (arable & permanent crops)\n\n1,300,346,805,000 Is the total land surface\n\nThats 11.79188439%\n\nSource: [FAOSTAT](_URL_0_)",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "7757190",
"ti... | null |
dhb9b9 | What are the most concerning potential shortages in natural resources? | [
{
"answer": " > Helium? Lithium? Sand?\n\nNone of those are required for our survival. Compare this to the [loss of insect biomass](_URL_0_) or a [shortage of farmland](_URL_0_) due to climate change. Either of those things would mean that humanity will eventually run out of *food*. That means mass starvation a... | null |
2lr1nm | how does the binary options scam work? | [
{
"answer": "After sifting through a few pages, it's just gambling, plain and simple.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "502104",
"title": "Binary option",
"section": "Section::::Function.\n",
"start_paragraph_id": 1... | null |
a5h2dz | Need help with advanced ceramics(?) | [
{
"answer": "Manufacturing methods are pretty broad, depending on material. Many are made in similar, but more carefully controlled, ways to pottery: a slurry that is formed or cast, etc., and then fired, often under even higher temp and possibly under controlled atmosphere.\n\nA more unique route, which is als... | null |
2e0jod | Were there many historically significant battlefields in WWI and WWII? | [
{
"answer": "There was quite a sizeable battle in Verdun in 1792. \nA better example might be Metz where there was a big battle in both the Franco Prussian war and the second world war. \nBesides that, it wouldn't be too hard to find battlefields in Belgium or northern France whereseveral battles could have tak... | null |
p1igy | There are obvious reasons behind human beauty (fertility, child raising) but why do we perceive non-human things (natural vistas, cute animals) as beautiful? | [
{
"answer": "_URL_0_\n\nDespite not being human, \"cute\" things still display neoteny, which as mammals we have a vested evolutionary interest in, given the importance we place on raising offspring. \n\nOne could \"layman speculate\" that this is exacerbated in humans, which care for their young much longer th... | null |
5fzl6g | What was the Jazz scene in 1920s/30s Shanghai like? | [
{
"answer": "Jazz at this time was *the* thing to do for nightlife, and Shanghai was the centre of jazz in China.\n\nJazz was introduced to the city through the foreign concessions in the 19-teens. The International Settlement and the French Concession both regularly had jazz musicians, often coming from the Un... | null |
3m87fq | why do rock bands often have a carpet on the stage? | [
{
"answer": "Stages are very hard. The rugs provide a softer surface to stand on. There is usually an additional layer of padding under the rug as well. ",
"provenance": null
},
{
"answer": "Drummers do it to keep their drums from 'walking' away. Even though all your hardware have little rubber ... | null |
5mp9n4 | why can you hear the voices in the apartment above you so easily, but not the voices in the apartment below you? | [
{
"answer": "Because sound travels through the solid medium ( the floor slab). On the floor above, people are directly in contact with the surface; while on the floor below, you're only depending on the noise traveling through air and noise traveling in air is divided into reflected, absorbed and transferred, m... | null |
2fozmj | if companies already know that most(if not all) people don't read terms of service, whats stopping them from hiding a hidden rule on page 500 of 3000 that makes you sign over all your possessions? | [
{
"answer": "It would be considered an unconscionable term and thrown out in any reasonable court.",
"provenance": null
},
{
"answer": "There's actually some precedent on EULA contracts, which are kinda similar to Terms of Service:\n\n_URL_0_\n\nFurthermore, it's not like this kind of legal situatio... | null |
10dhv4 | What's the average age of a species? What non-human factors determine when a species ends? | [
{
"answer": " > I remember reading that sharks as we know them today have remained unevolved for millions of years.\n\nWhat you might have read about were [living fossils](_URL_0_) which is a species that resembles a species from tens of millions of years in the past. For instance, sharks have changed little in... | null |
27fpr9 | why do people like jesse jackson and al sharpton march for white on black crime but not black on black crime? | [
{
"answer": "I recall Bill Cosby speaking out against black on black crime. The media called him racist and some members of the black community accused him of turning his back on the people who got his career started. ",
"provenance": null
},
{
"answer": "Because the racist tag they put on everythin... | null |
1ka5ft | elon musk's/tesla's hyperloop... | [
{
"answer": "Ooh, I understand it quite well :)\n\n[pdf link](_URL_0_)\n\nMultiple special vehicles ride through the tube. This tube, initially stretching from San Francisco to Los Angeles, has low air pressure so that the vehicles don't have to use so much power to go through it.\n\nThe vehicles have a big ele... | null |
3v3yes | why is most of the juice available in the supermarket a mix with cranberry juice? | [
{
"answer": "I also want to know this. I went to the store one day because I wanted juice that didn't taste like cranberry. So naturally I tried to find juice without cranberry in it. The only one I could find was cherry juice mixed with apple juice. Guess what. That mix tasted exactly like cranberry juice... | null |
6ebhwd | Where do Newtonian physics stop and Einsteins' physics start? Why are they not unified? | [
{
"answer": "They are unified, in the sense that when the velocity is slow enough, both of them give the same answer (you can express this formally for example through the use of Taylor series). They only start to diverge when velocities approach the speed of light and Newtonian physics is no longer an accurate... | null |
4l3tp8 | Why was Scipio Africanus so disliked by his political peers? | [
{
"answer": "Scipio's not exactly the only Roman aristocrat to be prosecuted following great service to the state. Actually, it's kind of common. The Roman aristocracy relied on the individual magistrate or promagistrate to get anything done, but was highly suspicious of the individual standing head-and-shoulde... | null |
gmgjq | Evolutionary, will we be fatter or thinner in the future? | [
{
"answer": "I think we are a few decades away from drugs that will safely control fat accumulation.\n\nIf that occurs, the genetics will become irrelevant.",
"provenance": null
},
{
"answer": "How fat we get is more of a reaction to our environment rather than our evolution. A creature with a lot o... | null |
21jj18 | is the buddha still 'alive'? | [
{
"answer": "There are different buddist schools. In Theravada buddhism, anyone that reaches nibanna is removed from circle of life and is never born again.",
"provenance": null
},
{
"answer": "Interesting note, reincarnation was around before Buddhism was founded. Borrowed ideas?",
"provenance"... | null |
2a84rc | what was the fault in brazil's defense ? | [
{
"answer": "their strategy of panicking and running around in a state of confusion, while bold, was ultimately spectacularly unsuccessful ",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "651571",
"title": "Association football tactics and skill... | null |
5dkc6d | is the world really round\spherical (exactly 360 degrees)? | [
{
"answer": "It's not *exactly* spherical. If it were, there would be no variations in terrain like mountains or valleys.\n\nIn fact the Earth is slightly shaped like an oval. But it's mostly spherical.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "29... | null |
5vwj41 | special relativity says the mass of a moving body _url_0_ has the mass of the universe been increasing since the big bang? | [
{
"answer": "I'm assuming you think the mass of the universe is increasing because of expansion. You can't talk about 'the universe' as an object, even taking into account relativity, because the universe is the thing that all the objects are in. The expansion of the universe is talking about the space itself e... | null |
79fs3x | What is the farthest direct parallax measurement of an object? | [
{
"answer": "GAIA hasn't released parallax measures of distant stars yet, that's going to take some more time. While optical parallax has been limited to the nearest 100 pc or so, parallax from radio measures can go significantly further by using interferometry, where multiple radio telescopes across the globe ... | null |
33awbu | do animals (especially those who mate for life) feel love like we do? | [
{
"answer": "What happens when we die? Nobody can actually perceive the reality of a dead person just like nobody can perceive the reality of a swan. This question will only bring opinionated answers not factual ones.",
"provenance": null
},
{
"answer": "Hard enough to prove love really exists in hu... | null |
3wgxrq | the height of the average american male has risen roughly 3 inches in the past 200 years. is this an example of evolution, coincidence, or something else? | [
{
"answer": "It is probably due to better nutrition. People are more likely to reach their genetic potential.",
"provenance": null
},
{
"answer": "People are fed better. 200 years ago you were rich if you got to eat meat every day. Now, everybody does.",
"provenance": null
},
{
"answe... | null |
205i37 | What was the impact of the First World War on eastern Europe | [
{
"answer": "World War I had some pretty big consequences for Eastern Europe in all sectors of life, including the economy, culture, and politics. I'll focus on the most obvious consequence: the redrawing of borders in Eastern Europe. The dissolution of the of the Austro-Hungarian, German, and Russian Empires a... | null |
4vw5ts | how are we able to animate so much more realistically now than ten, fifteen, etc. years ago? | [
{
"answer": "It's due to a combination of better software and better hardware.\n\nAs animation became more popular, newer and better methods were developed. For example, the way animators now move a person is through a inverse or forward kinematics rig. This basically lets the animator assign \"bones\" to diffe... | null |
3rlxgv | What tactics did medieval European armies use when fighting horse archers? Did European armies ever employ horse archers? | [
{
"answer": "The Byzantines used Horse Archers as well as Cataphracts. They adapted their armies to be very Calvary based due to their fighting with the Sassanids.\n\nThat said horses were very expensive to buy and maintain and horse archers were not all that effective in the heavily wooded German regions. Ho... | null |
3oe55s | Does raising acetylcholine increase or decrease dopamine? | [
{
"answer": " Where? Acetylcholine is not generally just freely diffusing throughout the CSF, as there is a relatively large amount of chemicals that break it down diffuse in the CSF. Also it's not like you could just eat acetylcholine and get more at your synapses or something.",
"provenance": null
},
... | null |
1786ki | Why does an aluminum pot turn dark grey if left on the stove for too long? | [
{
"answer": "Oxidation, Al2O3 is grey.",
"provenance": null
},
{
"answer": null,
"provenance": [
{
"wikipedia_id": "1317767",
"title": "Window capping",
"section": "Section::::Criticisms.\n",
"start_paragraph_id": 9,
"start_character": 0,
"en... | null |
442tyy | When did women first start outnumbering men as teachers? | [
{
"answer": "Not OP, but to qualify the question:\n\nAt least in the United States, teachers at early \"public\" schools seem to have been mostly male. At the very least, this is how 19th century writers like Hawthorne depicted their 18th-century ancestors. By the mid-19th century the \"schoolmarm\" stereotype... | null |
30nks0 | why is toronto the only canadian city with sports teams in the mlb and nba? | [
{
"answer": "Toronto is the biggest city in Canada. Big cities tend to have more diverse tastes and larger markets, so there are more people interested in American sports.\n\nAlso, it's on the Great Lakes, so it's very close to a number of major US cities.",
"provenance": null
},
{
"answer": "Vanco... | null |
2sj2g6 | what do boy/girl scout actually do? | [
{
"answer": "In norway we try to have fun. Light fires, Cook Food on fire, build stuff with lumber. Also do some camoing,m in cabins, tents, under tarp or under gods sky.",
"provenance": null
},
{
"answer": "we are just finishing up a 5 year run in Cub Scouts (ie, the junior level of Boy Scouts). T... | null |
684kdo | were anatomically modern humans from 200,000 years ago exactly the same as us, except without language and culture? | [
{
"answer": "They were close enough that we could bump junk with them and produce viable offspring.\n\nThere would be some differences (200,000 years is enough for SOME drift) but they would be pretty similar to us. They would be on the short side, and have a lot of injuries and scars that we don't have... but... | null |
1fd79e | What were the long term effects of D-Day? | [
{
"answer": "If you mean going beyond the war itself you end up with decades of US soldiers being stationed in mainland Europe. Without Operation Overlord (DDay actually means the day on which a campaign starts and was not the name for the invasion of Europe) it's possible that the Soviets would have overrun a... | null |
8z44t1 | why can’t the panama canal just dig a deep canal and remove the locks? | [
{
"answer": "Oceans are in constant motion. This means that they surge up and down.\n\nBecause the Pacific and Atlantic Ocean aren't connected anywhere *but* the Panama Canal, you're channeling the entire difference in wave height at any given time through the canal.\n\nWithout the locks, that means you'd mostl... | null |
6d24vd | as diseases like polio are eradicated why do we still need to vaccinate against them. | [
{
"answer": "When a disease is considered eradicated, it is saying that we (\"we being whatever group(s) keeps these records) haven't heard of any recorded cases in ___ number of years. It's possible the disease is still out there and it's just not being reported. Vaccinations continue for a little while just i... | null |
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