Split (3)

train · 273k rows

title stringlengths 0 299	text list
How do they release HD movies that were out decades ago?	[ "Because the film originally used had higher resolution than the standard HD formats anyway. Quality 35mm film has a horizontal resolution of approximately [4096 pixels](_URL_1_), which is about twice the resolution (and four times the pixel count) of the [1080i/1080p](_URL_0_) HD format.", "Imagine getting a VHS...
Where are the colors that a human can't see? Is my wall secretly another color?	[ "The electromagnetic spectrum of light is very, very long. We call colours the wavelengths that we can see with our eye. But there is a lot more in the electromagnetic spectrum than the range between 390 and 700 nm. The wavelength is a particular feature of the wave, imagine a sinusoidal wave (a nice smooth curve t...
Neural Net "dreams"	[ "They are using a very large neural network model that was used to classify images into categories.\nIts probably a convolutional neural net which looks for small features in the image by \"scanning\" it.\nThese learned features are pretty much stored inside the neural network. which it sees them those neurons fire...
Why are added sugars so much worse than natural sugars?	[ "> Wouldn't it be just as bad to eat an excess amount of natural sugars?\n\nYes. Eating an excess amount of anything can be bad for you. There is nothing inherently \"worse\" about eating something that has added sugar instead of natural sugar. So long as you are eating the right amount for your body, it will be go...
Difference between 32bit and 64bit	[ "Think a 4 lane highway (x32) vs an 8 lane highway (x64). The cars are the information. The amount of lanes does not effect the speed of the cars.\n\nPicture 8 cars going down each highway.\n\n8 cars on a 4 lane highway, the car will have to go in two rows of 4. The second row will get there after the first row.\n\...
If I got a lot of extra sleep last night, and very little sleep tonight, will that balance out and leave me well rested on Saturday?	[ "Your body does best with a consistant amount of rest. The extra sleep will likely help get through the long night, but it is unlikely that you'll wake up feeling well rested.", "No. Sleep is a bit like charging a battery. You can do it until you're fully rested, but sleeping longer won't let you \"overcharge\"."...
; hardbacks and paperbacks	[ "In general, hardcovers tend to be more expensive, as They cost more to produce. Hard cover books are more durable than paperbacks. The hard cover allows for fancier cover work in the form of engravery, reliefs, stiching, ect. as well as a jacket, that provides additional art. I think hard covers are more satisfy...
If binary is a deterministic process how are computers able to so randomized operations/calculations?	[ "Usually they're pseudo-random number generators. They're actually deterministic, but they're random enough for most purposes. Typically the process is seeded with something like the current time so that the deterministic process starts from a different place each time and you don't get exactly the same results e...
What exactly is REALLY going on in the American political scene right now?	[ "We have a controversial president. He didn't win the popular vote but because he won the right states to win, he beat his opponent. Some argue that he's crass, sexist, and racist and doesn't know what he's doing. Some argue that he's incredibly smart. Some argue that he won because of Russian hacking. Some ar...
Why our bodies are more sensitive to wind when we are wet.	[ "We sweat to release heat from our body. Sweat evaporating takes heat with it. When we are wet, the water is taking heat from our body, too. As it evaporates, it cools us down. Wind removes heat as well, as it is almost always colder than our body. Wind plus water just removes far more heat than either alone.\n\nIf...
How are LCD/LED TV screens made, and so reliably?	[ "So there's actually 2 questions here, what the production process is, and how to get rid of dead pixels. The first one is pretty complicated, it'll take too long for me to describe it, but I'll describe the second one. This is highly simplified. (I used to work at a LCD fabrication plant...yes, taking bare glass i...
Why can't I use my Canadian passport in America when I have dual American-Canadian citizenship?	[ "Most countries don't recognize dual citizenship. They don't outright ban it, but they don't care what other countries think...first and foremost, you are their citizen.\n\nSo to the US, you are an American, how Canada feels about you is irrelevant. Americans must enter the US with a US passport. It is probably ...
Why does it take Android OEMs so long to get new versions of Android to their phones?	[ "One of the biggest parts of it is that every phone has a slightly different kernel (the core of the OS). Yes, it's all Android, but the specifics are tailored to that specific phone's hardware. If you took the version of Android running on your Galaxy S5 and tried to run it on my Nexus 4, for example, it wouldn'...
How does 'getting used' to spicy food actually work?	[ "When you repeated eat spicy food you're over stimulating the receptors that sense heat. The receptors deactivate themselves so they can better handle the heat. It's kind of like having an annoying younger brother who you eventually just decide to start ignoring instead of dealing with.", "This is just a practi...
Why can't we dispose of nuclear waste by putting on a subduction tectonic plate to sink it into the earth's core?	[ "It would work. But the subduction plates move at the same rate that your toenails grow, or thereabouts. So it would take years and years and years for the waste to disappear. Years that highly radioactive/toxic material is sitting on the ocean floor, polluting the water and killing nearby organisms.\n\nNot to ment...
Why are foods associated with times of the day?	[ "Not scientific at all, just a possible observation.\n\nImagine it's 1910. You don't own a refrigerator. When you wake up in the morning, what seems fastest? \nGoing out to get eggs from the chicken coop, milking a cow, and eating some leftover bread (or even baking some fresh bread). \nSlaughtering a chicken, de...
- Why do I see green patterns of flashing light when I press in my closed eyes?	[ "Basically you can stimulate photoreceptors in the eye with pressure, as opposed to light. The stimulation causes you to see something, in this case a green flashing light pattern." ]
How does a Tesla vehicle "see" the car AHEAD OF the car in front of it?	[ "> Taking this one step further, a Tesla will also be able to bounce the radar signal under a vehicle in front - using the radar pulse signature and photon time of flight to distinguish the signal - and still brake even when trailing a car that is opaque to both vision and radar.\n\nsource: _URL_0_" ]
Why the Xbox One included what was used in 4Chan's latest exploit	[ "This particular set of instructions is not a single feature of the Xbox One, but the linking of a couple of features together to prouce an undesired outcome.\n\nAccess to a developer console is rather common and whether they intended to leave this access in the shipped product is unclear to me. It can be useful to...
Why didn't the Nazis attack Switzerland?	[ "For a bunch of reasons: \n\n* It would have been difficult to drag their tanks in there because Switzerland is, mostly, surrounded by mountains. Mountain fighting alone is pretty deadly but one of the major advantages that Germany had early in the war was the speed of their tank attacks. \n* Swiss had a conscripti...
Why does it take so long to cancel when you're copying files?	[ "When you hit cancel, it's un-copying whatever that has been copied." ]
How am I able to make it home safely after being blackout drunk?	[ "As your car gets older, you can expect certain things to stop working, but you don't know the order in which they'll stop working. If you car's brakes stop working, that's bad, you're not going anywhere. But if your headlights stop working, it's not going to prevent you from getting home.\n\nBeing blackout drunk...
why are there so many reports of incidents involving incompetent police officers, what does it take to become one?	[ "we only hear about the bad ones. in reality there are FAR more good cops than bad" ]
Why do eyes sometimes change color depending on the day/time of day?	[ "Eyes do not change color, outside of a slower change as a result of certain diseases. The differences you see are caused by varying light levels, angles, etc. The same way a shirt can seem blue in one light and green in another." ]
Difference between United Kingdom, Britain and England	[ "So if you look at [this map](_URL_0_), you will see that England is pink, Scotland is blue, Wales is red, Northern Ireland is yellow, and the Republic of Ireland is green.\n\nThe United Kingdom is a country made up of England, Northern Ireland, Wales, and Scotland. Great Britain is the island that contains England...
why fingertips hurt for a few days after cutting nails a little too short	[ "The top of your nail is dead, so it doesn't hurt to cut it.\n\nIf you cut too short (to the quick) you cut the part of the nail that is alive (and grows the nail), this will result in pain and possibly bleeding." ]
Why do we "run out" of laughter after a laughing fit?	[ "I don't understand why every person in this sub assumes that everyone experiences exactly what they do. I have no idea wtf you are even talking about here." ]
How did they do those human transformations at the end of Michael Jackson's 'Black or White' music video?	[ "They used \"[Morphing](_URL_0_)\" software to take 2 images, plotted out the similar parts of each (nose, eyes, mouth, etc...) and blended them from one to the other." ]
Why, when baking, do you have to add different ingredients at different times, using different techniques?	[ "Cooking is just science that makes you poop.", "Well, for instance, butter is a solid at room temperature.\n\nIf you were stirring a bowl of room temperature batter and just dumped melted butter in it, it might form clumps as it re-solidifies, so you pour it slowly while stirring so it mixes evenly in.\n\nWith w...
How radiation and radiation poisoning work?	[ "depends on the exact type of radiation. there are two types, particle and electromagnetic. bit cause problems by breaking apart molecules in our cells, but how they do this is a bit different.\n\nElectromagnetic radiation, which is photons/waves of energy, (visible light is a type of EM radiation, btw, as are x-ra...
What is the Purpose of the Pad Part of a Water Lily?	[ "Since it's a plant, it needs to get energy from the sun to live (through photosynthesis). It's easier to do this on the surface than underwater, especially in murky waters like are often found in ponds and lakes.", "The flower of a water lily is for mating, trading pollen with other lilies, and eventually formin...
Why have the majority of men in recent history preferred shorter hair then women?	[ "Hair that is very short cannot be grabbed in battle, so that's why the military uses short hair, traditionally. You might be surprised how much influence the military has on fashion. I believe the modern business suit is a reflection of officer uniforms." ]
What causes the "dry spot" in your throat?	[ "If you feel like just one spot is dry, this is an illusion -- it's actually irritated, not dry. This can be caused by a persistent drip of mucus from your sinuses into your throat, or by a throat infection." ]
Why do bugs seem to fly in circles around one when out hiking, particularly around the head?	[ "Generally, they are either attracted to the carbon dioxide you are exhaling or the body heat you are giving off. For flies, it's the CO2, mosquitoes seek body heat. And the head is usually the hottest part of your body, and it's usually exposed, especially in the type of weather that mosquitoes are an issue." ]
Why do YouTube comments' dislike button exist? What does it do?	[ "It does literally nothing. In fact, if you dislike a comment then hit f5 and it won't even show that you hit the dislike button." ]
Why do people post questions here that could easily be googled?	[ "Because googling it wouldn't get you an answer that is dumbed down and simplistic. It also wouldn't give you the opportunity to ask follow-up questions of the answerer if you still don't understand the concept.", "To get people's opinions and respond back and forth with what is posted, as opposed to just readin...
What is a "non-member observer state", and what does this mean for Palestinians?	[ "Its a half-way step to becoming a full-blown member of the UN. It is recognized as an official country (State), which means they get to send a representative to sit in and listen to the goings-on in the UN (Observer), but not cast any votes (Non-Member)." ]
What does it actually mean to be Left wing or Right wing?	[ "It's a very rough guide to explain some of the differences between political parties -- but very rough. It works reasonably well when you're talking about mainstream politics, but when you get to the extremes it becomes less accurate (for example, Germany's National Socialist Party of the 1930s is usually consid...
How do they take crystal clear pictures of jets going supersonic speeds?	[ "Two methods in combination: very fast shutter speeds, like 1/1000 of a second or less -- I've taken pictures of helicopters this way where it doesn't look like the rotors are moving. Also, follow along with the plane as it moves. Any background trees or whatever will probably end up blurry, but the plane will be s...
(Serious) The thought process that leads doctors to choose to become proctologists, gynecologists or urologists.	[ "I can think of three reason:\n\n1) Money - If these positions pay more money, doctors will follow.\n\n2) Demand - Perhaps a lot of doctors do not want want to be urologists and such. However, since fewer doctors take these jobs, these positions will more available. So the doctor has the choice to compete against...
Why are movies all 1.5~2 hours long?	[ "It's an average at which a compromise occurs between holding the audience's interest and attention and the feeling of getting value for money paid. Any longer and the brain starts thinking about doing other things; any shorter and the brain starts thinking it's been ripped off because it paid for a certain \"durat...
I don't have a lisp speech impediment but can mimic one if I try, why can't someone that has a lisp speech impediment do the same in regards to speaking without one?	[ "Sometimes, the lisp is the result of the shape of the mouth and teeth. In such a case, you may as well say \"I don't need a wheelchair, but I can still use one. Why can't disabled people just walk?\"\n\nOften, though, it's psychological, and can be trained away by a speech therapist. That's why lisps are more comm...
how gas planets form differently than terrestrial planets	[ "Two major theories: \n\n1: They form much like rocky planets and infact have a rock or ice core. Basically they just form earlier when there's more gas in the disk around teh star. \n\n2: They form kinda like stars in that you get clumps of denser gas in places which can pull more gas toward itself and so on. The...
How does Walmart justify its employees costing taxpayers $6+ Billion in government assistance a year? How (why) do they get away with it?	[ "Why does Walmart in particular need to be held responsible for the government assistance its employees use? Is Walmart is inherently more evil because they pay people similar wages/benefits as other retail stores simply because they're larger? What about food service giants or other industries which predominantly ...
How the fuck do I keep coriander/cilantro alive?	[ "Give it deep soil, water enough to just keep 1\"down damp. DO NOT overwater and give at least 5-8 hours of sun each day. Anything above 20° 60° is warm enough." ]
Why do some fermented drinks need yeast, and some other drinks need yeast and bacteria (scoby)?	[ "Fermentation with yeast and without bacteria is alcoholic fermentation, with bacteria lacto fermentation. Kombucha (scoby) isn't intended to be an alcoholic drink, although it does contain some alcohol.\nBut if you want an alcoholic drink you would use yeast and not a scoby to ferment the sugar water. If you want ...
How much did the recent deluge in SoCal help the drought?	[ "Helps a little short term, but yeah, it needs to be in the mountains and a lot more than what we just got. The ocean is pretty gross right now, for what it's worth. I wouldn't swim for a few days at least.", "From my understanding snow pack is what we need. Rain like this dosnt really do much except cause mu...
Why aren't more laws created or changed by grandfathering them in years or even decades from now?	[ "Because a grandfathered in law can still be changed before it goes into effect. Sure, now it won't hit hard, but in 10 years when it's about to happen? People in Congress then are going to be de-elected if it actually goes into effect. So, they'll put it off, or scrap it.\n\nBesides that, setting a policy to h...
Lewy Bodies and Parkinson’s Disease	[ "Basically, there's this region in the brain called substantia nigra pars compacta. This region is rich in dopaminergic neurons and is, roughly speaking, responsible for fine motor movement.\n\nParkinson's disease happens when dopaminergic neurons on this part of the brain begin to commit apoptosis (cell suicide,...
How to count cards.	[ "Blackjack is the most common game where people count cards. It doesn't guarantee you will win, but it helps you know how much to bet on each hand. The idea is to bet more on hands where you have a high chance of winning, and less on hands where you have a low chance of winning.\n\nGenerally, in blackjack, people d...
How do cold chills work and why do they make people involuntarily spaz out for a second?	[ "Yer not alone in askin', and kind strangers have explained:\n\n1. [ELI5: What causes us to get those random cold chills? ](_URL_5_)\n1. [ELI5: What are \"chills\" and why do we experience them? ](_URL_3_)\n1. [ELI5: Why do people get an involuntary shiver, or chill, at seemingly random moments? ](_URL_2_)\n1. [ELI...
Why do bees die when they lose their stingers?	[ "Most bees will never reproduce, so sacrificing their lives for the colony does not effect the evolution. When a stinger is left in its victim it causes greater pain and incentive to stay away from the colony, effecting the evolution.", "They die because the stinger is barbed and sticks into the skin and doesn't ...
How does my car radio pick up digital details (station, artist, song) on just FM reception?	[ "The FM signal actually contains different parts separated from eachother and one of those is the [RDS or Radio Data System](_URL_1_) (regular wikipedia) used to send program information.\n\n[Here](_URL_0_) is an illustration of different parts of a FM signal. The green to the left if the mono signal, after that co...
If we (the human race) somehow become immortal, aren't we basically dooming ourselves?	[ "If we were to become immortal, there wouldn't be a need to adapt. If the end game of evolution is to create something that is able to survive as long as possible, then immortality would be the endgame.", "no.\n\nEvolution would still favor those more likely to reproduce and in greater number. Evolution doesn't ...
why does hearing and balance happen in the same organ?	[ "Evolution often creates the simplest system that works the most efficiently. \n\nIn order to hear, your body has a complex series of physical reactions that happen in your ear transcribing sound waves. The last stage of this transcription, which converts the sound wave messages into neural signals, takes place in ...
Why are domestic or shorthaul flights in the USA/Canada so much more expensive that comparable distance air travel in Europe?	[ "A main reason: more competition not only by other airlines but also trains, as Europe has a resonabley fine rail network including highspeed trains between mayor centers. Also you have to be carefull with airfare quotes as they often do not include various fees.", "It actually has a lot to do with Airport taxes,...
How do animators match up the characters' mouths with the voice actors' words?	[ "They record the voices first, almost always. They time out the syllables by listening to the audio, and figuring out when each syllable hits what frame in the timeline. They then animate the mouth syllable at a time, and then fill in \"half-way\" drawings between the syllables, as necessary.\n\nIn computer animati...
Why can't I tickle myself but can sexually stimulate myself?	[ "Ticklish-ness is thought to be a warning system against spiders and insects that could present a bigger risk that their actual size/touch would indicate. This is why a light, unexpected touch causes an overreaction from the nervous system - tingles everywhere.\n\nSex is different - it's not a reflex sensation, and...
- Why do we laugh? Is it learned, or is it something that we just do?	[ "I read recently that blind people smile instinctualy even though they have never seen others smile. Perhaps laughter is the same." ]
Why are movies able to break record sales in box office when the price of tickets are different from other movies before? Why are movies not based on the actual number of tickets sold to have a fair comparison?	[ "Mostly because it doesn't sound as good.\n\nThe movie that has sold the most tickets ever was Gone With the Wind (1939), followed by Star Wars (1975); ET (1982) or The Sound of Music (1965) (my two sources disagree on the order); and Titanic (1997) or Ten Commandments (1956) (another disagreement). If you look at ...
Why is it really necessary to blur out product names on some shows?	[ "There are quite a few different reasons why they'd block out the logo on a can of cola, for example, but there are 3 primary ones I can think of:\n\nA) They want to avoid conflict with companies whose advertisements run during the commercial break (ie Coke is a \"sponsor\" by running an ad during break, but a can ...
Why are there no national referendums in the United States like there are in other countries?	[ "The US constitution simply does not have any procedures in place or allowance for a national referendum, so there isn't one. There have been amendments proposed to do just this, usually with a specific case in mind, but they have never gotten anywhere.\n\nThis makes tremendous sense that the framers of the consti...
Why do some websites don't open without "www." when most websites don't need that?	[ "Pre-emptive tl;dr: There's no reason that www needs to be part of a domain name, it just exists as convention. Usually they point to the same place as the primary domain, but sometimes not. Sometimes it doesn't exist at all.\n\nWebsite addresses are basically just a fancy shortcut to an IP address, at first th...
Why can programmers write code easily but have difficulty reading it?	[ "It's very easy to write code that is unreadable. Some programmers test every 15-30 lines or whatever of code, so they work on their own momentary memory of what is supposed to happen. On top of that some don't have a good sense of organization or how much responsibility to give one method or function or class.\n\n...
Why can't we move our toes independently like our fingers?	[ "Human here: You can, it's just harder. Your fingers are easier to move because they have 3 bones connecting them to your hand but your foot only has 1. If you try hard enough you can move only 1 toe at a time. At least I can.", "You can, it's just that you never do so it's harder when your first try. There are p...
What is the financial benefit to EA for not selling games on Steam?	[ "Valve takes a ~30% cut of every game sold on Steam. That 30% is a whole lot of money when you're settling millions of every game you put out. It's so much money that the expense of creating and maintaining your own distribution platform STILL saves you money.", "They honestly probably lose sales by not being on ...
Do you need to have some sort of condition for euthanasia/assisted suicide?	[ "Well, the laws vary considerably based on where you're planning on doing it.", "[Here is a page](_URL_0_) on various legal requirements for euthanasia in different jurisdictions.", "In what country? In my country there is no possible scenario you can be in for it to be legal." ]
Why do human bodies build up tolerance to alcohol/drugs but not daily medications like antidepressants/cardiac/etc meds?	[ "I can't speak for the other meds, but you absolutely can build up a tolerance to antidepressants and painkillers and the like" ]
We make leather from cows, sheep and pigs. Why not horses?	[ "We can. A horsewhipping is not just an expression. The other animals are food animals. While horses are eaten, they were a delicacy for stone age people, horses are not meat animals the way the others are. The other hides are products of food production. Most likely an old horse is an old friend and just buried." ...
Why is it so much harder to read a phone when someone else is holding it, as opposed to when you are holding it yourself?	[ "We can't hold our body completely still. When you're holding the phone yourself, it moves together with your body - your movement is synchronized with the phone's movement. When someone else holds the phone, that's no longer the case - the phone swings together with the other person's body, not with your's.", "V...
If 'white' and 'black' are politically correct terms for Caucasian and dark-skinned people, how come using 'yellow' and 'red' to describe Asians and Native Americans is considered offensive?	[ "Because black was used less as a derogatory, and more as a descriptor, maybe? For the record, in social activism circles, the politically correct term to use is \"people of color\", or POC. Not \"colored people\", but you put the person first with \"person of\".\n\nYellow and red as descriptors have also been us...
Is "quark" really a nonce word?	[ "It is a type of cheese, but the name likely comes from Late Middle High German. So it could have been a nonsense word in English at the time.", "ELI5 Where the hell does \"nonce\" come from?", "Quark, in Germany and other German-speaking places (as well as Netherlands and eastern Europe), is like a soft chee...
What happens to my iris when my pupil dilates? Where does it go? Does it compress? Is the pupil in front?? I must know!!	[ "The pupil is the hole; that's like asking if a donut hole is on the front or the back of the donut.\n\nThe iris is a muscular ring -- the \"donut\" -- which just gets \"squished\" into a thinner ring when the iris dilates, it's still there, it's just smaller, which causes the pupil to get bigger, because it's the ...
How does your body know the difference between sleeping and napping? (i.e. when you nap, you wake about in a half hour or hour as opposed to a full sleep)	[ "Waking up from a short nap or a full night's sleep depends on your body's [sleep cycle](_URL_0_) which lasts about 5-6 hours. It takes about 45 min to enter deep sleep, and once you do, you are very likely to stay asleep for the full cycle. \n\nHowever, during the first 10-30 minutes, your body is still transition...
why do humans love spicy food	[ "The molecule that causes the sensation of spiciness is capsaicin, which binds to the nerves responsible for registering heat and more importantly pain. This causes these nerves to fire, making us feel these sensations. In response to pain, our bodies release endorphins, which help to nullify the pain and create a ...
Pawning	[ "My buddy owned a very successful pawn shop where he would turn about $500,000.00 a year in just loans. \n\nThe simple explanation: \n\n1. Hold an item for people in exchange for a very small loan.\n\n2. Charge a high percentage of loan interest/fees for this service.\n\n3. If they pay, you make money of the inter...
Why are so many people "excited" about the Fifty Shades of Grey movie if everyone seems to be (rightfully) making fun of the book?	[ "There's two \"everyone\" out there.\n\nOne is the \"everyone\" that makes fun of Justin Bieber, Nickleback and Twilight.\n\nThe other is the \"everyone\" that throws money at that shit and makes it insanely popular.", "The thing you have to understand about Fifty Shades of Grey is that it is, fundamentally, porn...
How is it that Singapore, UK and the US found Nestle India's noodles safe to eat, but India found the opposite?	[ "There's a possibility Nestle manufactures the noodles differently for exporting to countries which are more stringent with their checking. \nHowever, there's also the possibility that it was a shakedown by the government, possibly due to some bribe that Nestle refused to pay. That's the sorry state of politics ar...
What's the reason pirates are depicted wearing eyepatches?	[ "The fact that some pirates wore eye patches most likely had nothing to do with a missing eye, and everything to do with being able to see—specifically, above decks and below them.\n\nJim Sheedy, a doctor of vision science and director of the Vision Performance Institute at Oregon's Pacific University, told the Wal...
Why are so many freekicks in professional football/soccer shot so badly?	[ "Perfection is what they are going for. They are aiming for the very edge of the net, the furthest distance from the goal keeper because anything aimed in the middle of the net is easily going to be blocked. Being just a little bit off will cause their shot to miss the net but missing a little bit the other way is ...
Why can most people cross their eyes easily, but not point them in opposite directions outward?	[ "Because when you cross your eyes, you move your focus points closer together, and that has a function for seeing things close up.\nSeeing as far as possible will require your eyes to be pointed somewhat straight forward, not outward.\nThe reason we can't move our eyes in different directions like chameleons is tha...
Why is a big screen that is far away more pleasant to watch than a smaller screen closer to your eyes (which covers the same space in your field of view)?	[ "Your eyes can tell how far away objects are, especially if they're only a few metres away. This messes up your feeling of immersion so TVs don't feel as realistic as a cinema screen. VR headsets use optics to avoid some of these issues." ]
Ghost in the Shell - Free Will	[ "Well it is perceived on a delay of around 4 or .004 nano seconds for a brains command to be active. For ghost in the shell, she is constantly getting upgrades to help with a sense of phantom limb pain that she has randomly. Due to the fact that she was a fetus at the time of augmentation her brains wiring and impu...
single camera vs multi camera setups for filming TV and movies	[ "Multi-camera is often used in sitcoms. It's a cheaper way to shoot the show because you have multiple cameras filming things.\n\nSingle camera is just what it sounds like -- just one camera. If you have a scene where you see three different camera perspectives, that means they re-positioned the camera for each per...
Why do I hear so many radio ads for companies hiring truck drivers?	[ "It's because truckers spend a lot of time on the radio\n\nThe marketing ppl did a study and found out that truckers spend a lot of time on the radio so they put their ads targeting truckers on the radio\n\nThe problem is that truckers don't listen to the radio, the radio they spend so much time on is their CB radi...
What does a Master Sushi Chef to better/differently than a mediocre one	[ "A few small things that, together, can greatly affect the overall taste: \n\n1) The quality of fish. A chef may or may not have much control over this, depending on where their restaurant is and what sort of connections they have in the industry. However, for chefs who have more control over where they get their f...
Is there a condition that causes temporary super normal hearing?	[ "Any particular triggers? I get something like that occasionally, but usually in a situation like being in a very quiet house and trying not to wake people up.", "That sounds like a [migraine](_URL_2_) which can sometimes cause [over-sensitivity to sound](_URL_1_). Some people never develop the headache which is...
This may have been asked before but: How do radio waves travel in space?	[ "So if you think of sound traveling, it is using some kind of medium or material. It moves the molecules and they hit each other. When you hear something it is actually the pressure of the air changing minutely.\nIn space, however, sound cannot travel. This may be where you get caught up. \n\nLight, however, travel...
- Why did a downgrade of the US Gov't lead to more people buying treasury bonds?	[ "I posted an answer already, but I forget to explain it like I would to a five year old. \n\nSay your friend owns a lemonade stand, and wants to grow. He tells you how at the moment he is making $10/day. He says that if you give him $20, he will make you part owner and give you back $2/month and you don't have to d...
What are the cultural and social reasons to throw a sexual bachelor/bachelorette party?	[ "Bachelor parties date back to ancient Sparta, where where men would eat and drink the night before a friend's wedding. That was all about celebrating the union, saying goodbye to the 'carefree' days before a man took on the responsibility of a family, and swearing allegiance to one another for battle and stuff. I...
Would an object fully submerged in water be considered wet?	[ "This is more of a philosophical question than a chemical one. What makes something \"wet\"? I'd say that objects that don't absorb water can't be wet, but surfaces with water on them are wet. So a caught fish can be wet (if it has not been dried), or a person can be wet, though when we say that we really mean thei...
Does it take more energy to heat things up or cool them down?	[ "Assuming your question implies that heating things is raising them higher than the room temperature and cooling them down is lowering them from the room temperature.\n\nThe second law of thermodynamics says that you cannot transfer heat from a cooler body to a hotter body without some additional work(energy) invol...
What is the precise definition of a limit in calculus?	[ "Epsilon-delta was mysterious for me at first, too, but became quite intuitive later on. Think about it like a test.\n\nSuppose Bob says \"L is the limit of f(x) near x=a. I'm sure of it!\". Alice says \"Oh really now... prove it to me! Let's zoom in on a graph of f(x) and check it out. Show me a plot of *f...
What is the likelihood of a US economic crash and how likely is it?	[ "Here's what you have to remember: we have real wealth. I don't mean numbers in a computer. I mean real, tangible things: strong houses, excellent roads, high-tech factories. We have a very skilled workforce. We have farms that produce tremendous amounts of food per square foot. We have incredible technology...
Why do commercial airlines rarely have accidents whereas private jets and planes are frequently involved in accidents?	[ "Because the commercial airlines usually have the stricter training requirements, the higher cutoff point and their pilots fly even more regularly." ]
What are pressure points? Do they work like they do in movies? Can you really disable someone by tapping or pinching specific places?	[ "Best I can tell they are nerve bundles, and yes you can. Generally, it's not a 'incapacitate' but rather can cause intense pain which most people react to. Some people you, can it fact hit them and they can take the pain." ]
Why do some drinks need foil seals bellow their caps and others don’t?	[ "If you can open the lid/cap and replace it without out someone knowing, it needs a seal underneath. If the lid had a plastic piece that breaks, or you have to rip a wrapping to get to it, it doesn't need a seal underneath. It's all about whether you can detect tampering or not.", "Drinks with foil seals aren't...
Why must our vote for president have to be private? Wouldn't E-voting be alot easier if we didn't care who saw?	[ "The challenges with e-voting have nothing to do with preserving the secrecy of a voter's choice.\n\nAlso the reason to protect that secrecy are very important. Being forced to reveal your vote can lead to voter intimidation which is disastrous for democracy. \n\nIt might seem counter intuitive because so many peop...
why is it bad to ask a woman's age?	[ "Ask her if she knows what VHS is, if yes, she's old enough.", "It is because of the societal view that women should look the same age as, or younger than, what they really are. If you ask a woman how old she is, it is considered offensive because that means you could not tell by just looking at her. Try asking i...
Why there's a shadow of heat, but I can't see it with my eyes?	[ "The reason you can't see heat is because it is emitted as infrared radiation which has a much higher wavelength than the eye can pick up. The heat waves you see and this shadows are caused by the varying density in the air. \n\nHot air is less dense than cold air. Fact. \nAs light passes through air, we don't see ...

Subsets and Splits

No community queries yet

The top public SQL queries from the community will appear here once available.