Split (3)

train · 279k rows

query stringlengths 8 249	answer stringlengths 45 7.8k
Does anesthesia block the perception of pain, or just the memory of the painful experience?	I just had mine extracted a couple days ago. I believe they give you different medications. One to "put you to sleep" and the other as a nerve block. When my sedation finally wore off, I was still numb for a few hours.It depends on the specific kind of painkiller, but in general it blocks the pain signal. Your body doesn't feel pain, because the signal that gets sent to your brain saying 'I'm in pain!' never reaches it.
If the USA decided to go with full universal healthcare, what would happen to the private insurance companies?	There are a lot of models for universal health care, so it depends on how it gets implemented. For example, in the UK, the NHS covers all basic services, but plenty of people buy private insurance for increased convenience of services. Any way you cut it, private insurers are going to lose a huge number of customers and have to drastically cut back their workforce.
If we were a computer, what would be our equivalent specifications?	Most of us would be the free calculator that you get when you open a new checking accountThere really is no way to measure it because we think in an entirely different way. On a computer it is relatively easy to measure this stuff, because everything, everywhere comes down to a flow of bits. With humans, it's not entirely clear how exactly we process or store ideas. Human memories are a lot fuzzier than computer storage -- digital storage is perfect in the sense that it will always stay the same provided the media is uncorrupted. Even if you could decide how much "data" a memory in your head took up, how do you describe how you slowly lose tiny bits and pieces of it through out time? And the fact that, if you do the right thing, you might remember parts of it that you didn't know you could. There isn't really anything like that on a computer.Apples to oranges. There's no direct comparison because the human brain isn't a deterministic digital device. Computers are much faster, but also much more linear.
How does an octopus know when its changed to the correct color of its surroundings?	There is a theory that their weirdly shaped pupils result in something called "chromatic aberration", the result of different wavelengths of light refracting at different angles. In humans this causes colored "fringes" around objects which can be observed at the edges of eyeglasses or if your eyes are dilated at an optician. Octopus and squid may be able to use this to determine the color of their surroundings in order to create a match.
Why does it take weeks (or months) to receive results from multiple choice exams when everything is corrected and generated by machines?	I would imagine they have tens of thousands of sheets to mark. Then keying in marks, typing out certificates, etc for some exams. I've been waiting on my UNSW ICAS results for MONTHS.
Why do streamed movies cost the same as DVDs/Blu-Rays?	They charge that amount because people pay it. Yes, it's cheaper to stream than to produce a physical product, but since people will still pay the blu-ray prices for a streamed movie, that's what they charge.Its because people pay it for that price. If everyone stopped paying for digital copies at the same price as DVDs, digital copies will go down in price. Simple supply and demand. The corporations argue that the price of the digital copy is the same as the physical copy because a majority of those profits are used to pay the workers and server costs.It's a convenience fee. I mean, it's really always been like this. You go to a Hotel room and you can order off of the pay-per-view system for $8.00 a pop. Or you could go out to the local rental store and rent a VHS tape. The only difference now is that the rental option has mostly vanished off the face of the Earth.
Why do we all make the same faces for x emotion?	Quite simply, because they're genetically ingrained. These expressions are not something learned, but rather are hard wired into our brain to express an emotion.
- Why do we only ever see white people with down syndrome	Nobody is exempted from having Down Syndrome. But, there may be a variety of factors at play that have resulted in your lack of encounters with non-white people with Down Syndrome. First, according to the Centers for Disease Control, the mortality rate for black infants with Down Syndrome is higher than for white infants. Second, there is some interesting sociological evidence to suggest something called homophily in general social networks, which means that people tend to interact, by and large, with people like themselves. I'm assuming some things about you with this explanation: You're relatively young, white, middle-class, and from the US. If my assumptions are accurate, your exposure to a wide enough range of black/mexican/asian folks is limited enough that you're less likely to encounter someone in those racial groups with Down Syndrome. Third, DS is fairly rare. 1 in 691 children, roughly, is born with DS. . It occurs more often in children whose mothers are over the age of 35. There may also be some cultural/sociological issues at stake there too, younger motherhood rates amongst those populations in the US, for example. But, I suspect that the second reason is the most likely explanation, at least in part, for why you haven't ever noticed a black/latino/asian person with DS.
What effects would consuming an excess amount of protein do in the long term?	According to the Wikipedia article on "protein poisoning" or rabbit starvation , excessive protein in the human body would lead to excess ammonia and urea in the bloodstream due to amino acid decomposition which leads to the blood becoming too basic. Excess urea usually gets deposited into the joints, and so one long-term result of this diet is gout, assuming one doesn't die earlier from blood pH imbalance.
Who sets the start time for basketball/sports games and why do they start at random minutes?	Short answer: Because TV Longer answer: By starting 11 minutes early, in your example, the broadcast has time to start, do a little lead-in/pre-game show, if you will, and get things rolling before the actual game starts at the top of the hour. Also, it doesn't happen as much anymore with people DVR'ing everything and using built in channel guides, but it used to be to catch the channel flippers as well. They'll catch that the game is starting and stay there rather than keep flipping and miss the beginning.
When i eat am I actually chewing as loud as it sounds like to me?	No, when you chew, vibrations travel through your jaw bone and directly to your inner ear, where you hear them. On the other hand, the vibrations have to travel through air to get to someone else's ear. Sound travels best in solids, followed by liquids, and worst in gasses. This is because molecules are closer together in denser materials which allows for better transference.
How does a show like Survivor / The Amazing Race capture so many angles in a scene, especially the critical ones in the plotline?	I have an anecdotal answer for you. Several years ago, I spent a while working with a guy who won a season of the Israeli Survivor. Talking about how "real" it was, he said that all the tasks and results were legit, but that they often reenacted them shortly after they finished to allow the camera crew to get better anglesIn addition to having numerous cameras running at all times, the "storyline" doesn't come together until the editing room. In most every reality tv show, if the show isn't heavily scripted, there is NO story until the editor gets ahold of itThey have several camera crews, not just one. They ask the participants to cooperate by not having crucial discussions off-camera.
Why can cops let you off the hook in certain situations? Wouldn't letting them do something illegal be illegal too?	He's hoping that he has scared you into learning the error of your ways. The best form of policing is preventing crime, and by doing things the way you described, it sounds like he's achieved his goal. You're thinking about it. "I got away with it this time - next time I might not be so lucky, so I won't do it". funnily enough, I had this very conversation with a policeman friend of mine just a couple of months agoCops have discretion to arrest or not arrest people, based on the seriousness of the infraction and the likelihood of a conviction. If two drunks get in a shoving match, that is technically assault. But little harm is done, it is unlikely they pose a risk to society, and they would probably refuse to testify against each other then they sobered up, making a conviction unlikely.Yes, police can use discretion when deciding how hard to go after something. He probably didn't think you were high at the time and didn't want to search your car for pot, but he was trying to let you know there was an obvious smell. Edit: if he saw a bag, he'd have to do something though.
Why can we walk for hours without our legs hurting but standing still for less than an hour starts to hurt	We evolved to stand as a way to walk, and everything about it is adapted to that purpose. Our balance is better when walking than standing still, circulation better, everything about it revolves around movement. To stand still is inefficient, joints don't work as well because they're not being regulated by a rhythm, we have to keep making all sorts of fine adjustments to stay flexible , and aches and pains will pile up more quickly.
Why do I gag when I put a finger down my throat but food doesn't have the same effect?	Because when you swallow, peristalsis is pushing the food down that way and your brain recognises that. Also, you tend not to hold food right at the back of your throat with your throat open. If breathing through your mouth, your tongue tends to hold the food away from the back of your throat anyway so you don't inhale it. Edit: spelling
How do animals know who won a fight for dominance?	The victory for dominance comes when the an animal has established dominance over the other. Whenever the other animal feels powerless to continue, the dominating animal will psychologically feel being "in charge". The other animal might feel "under control", and thus he/she isn't dominative. How an animal "knows" who won the fight is how their minds make them feel. Dying is not necessary for this to happen, mere circumstances can be enough to induce these feelings. In battles of power, the classic psychological reactions are "fight
How do surfers speed up to escape a crested wave?	It's mostly unweighting off the bottom of the wave, the "flats", and hopping the board up onto the face of the wave, even ever so slightly like you see when she is near the white water. By unweighting and getting the board up, she can then redirect the board down and use both gravity and the push of the wave from behind to generate speed. There may be other subtle factors, like if she's riding a three fin board they create a bit of drag when going straight and release when turned using two of the three fins, but it's mostly the unweighting, hopping up, and coming down to make speed.
What would happen if The Moon was to blow up tomorrow?	We'd have to worry about several things: 1) the tides. The tides would be all messed up, and we certainly would see changes in the way our seas and oceans behave. 2) We'd have to worry, possibly, about pieces of the moon falling on us.
When we launch space missions, what's stopping other nations from believing that's a targeted bomb or nuke and how is it different from an actual attack?	First of all, its not like a space agency fires up this massive and amazingly complex rocket with complete secrecey, and goes "surprise! Its STS-134. You know, delivering supplies to the ISS. Yeah, usually we plan these things but we had a spare shuttle stack lying around and a few astronauts were looking for something to do this weekend, so we thought we 'd go up and take Hadfield a Pizza." The mission parameters are publicized in the news a long time ahead. Not only that but its professional courtesy in the space biz to keep everyone else in the biz up to speed with what you're launching. For exactly that reason. Noone wants to set off some ICMB detection system. Military launches on the other hand, I 'd say no - the air force isn't going to communicate to the Chinese that they're launching SuperKeySat-11 to photograph the chairman's bedroom. But the launchpads are fairly open, and the people who make and launch the military/spy stuff at least put out a vague non specific press release about a "New communication satellite. For the Air Force." - and everyone reads between the lines on what it is.Massive differences in the way they are launched. Space launches direct the craft upwards until the gravity turn which applies the force necessary to attain orbit. ICBM's, however, would never waste the fuel in doing such a maneuver as it would severely reduce the payload of the rocket. Even if a nation were to try and fool everybody with a space-launch-looking ICBM, there is still the problem of the fact that it's really easy to differentiate a sub-orbital flight from an orbital flight. Orbital launches are defined by exerting massive forces at the desired altitude to get into orbit. Not applying that force would be highly irregular. Even if a nation managed to fool another nation with a space-looking launch, it would be one, small, payload. It doesn't give you first strike capability, thus making the attack no more useful then a 'conventional' missile bombardment.
Why do you get hungrier after we snack on something?	When you are really hungry for a while, your brain realizes that you're not going to feed yourself, so it shuts down the thingy that makes you feel hungry, after eating something small your brain realizes that you are feeding it and since you need the food it turns the thingy that makes you feel hungry back on
why a manual transmission vehicle can sometimes stalls from a hill start	Manual transmissions work by manually selecting a gear and then supplying the engine with the right amount of gas to get a 3,000+ lb car going as you engage the gear. Normally, you're on a flat surface so the amount of gas required is that which generates enough energy/momentum to "push" the weight of the car forward. On a hill, things are slightly different. The moment you take your foot off the brake , the car starts rolling backwards. To counteract this, you have to feed the engine much more gas than you normally would because you have momentum in the opposite direction of which you want to go. If you're not VERY familiar with the engagement point of your clutch , you likely won't feed the appropriate amount of gas into the engine, which will cause you to fry your clutch or stall out . Since most people are afraid of doing the former, they undershoot the increased gas requirement because of the hill and stall the vehicle.
Why do Americans dye their cheese orange?	What color is cheddar cheese where you come from? All cheese is naturally white, or off white, or even a golden yellow, depending on the type of milk used. But you'll never find a cow that gives orange milk. The color instead comes from the flavorless Annatto seed, which gives Wisconsin cheddar that pumpkin orange hue. Found this cool article explaining the history which actually started in England by the way._URL_0_
What makes Unreal Engine 4 so... unreal?	In simplest terms, no other game engine has the sheer amount of man hours poured into it as Unreal Engine. UE has had a ton of resources available to hone their craft. Keep in mind this is the 4th iteration Unreal Engine 1 came out in 1998. [Here's a pretty comparison of versions 1 through 3]", 'So you ask why the Unreal engine so unreal then proceed to continue your question citing that it looks super real. It is the march of progress, each new engine is getting better and better at handling details and graphics
Why do we hear our own chewing loudly when we close our ears?	Normally you're hearing the sounds from outside your head, that go into your ears. But, you also hear a lot of sounds from inside your head, that are less from the vibration of the air but the vibration of your actual body/head. This is actually why your voice sounds different recorded than it does when you speak - because you're used to hearing your voice vibrating inside your own head. So, when you chew, especially with headphones or something on, you're ignoring all the normal external sounds and instead focusing a lot more on the sounds inside your head that other people can't hear.
Why don't we trigger our gag reflex when we swallow food, but we do if we put our finger down our throat?	Our body doesn't like something being both down our throat and out of our mouth at the same time as it will choke you. Same goes for toothbrushes. You mouth is very aware of the size and shape of things you shove it it.
How does the "bidding website" scam work?	Those web site you see ads for that say PS3 just sold for $2.56. Well it did "sell" for that but the trick is that you must pay for each bid you enter like $1.And they will keep changing the end time of the auction so more people will pay that dollar to enter a bid. Technically it did sell for that, but that was after several hundred bids were placed at a dollar each, so really it is that sell price plus how many bids were placed, they make a lot of money off thatIt's basically a lottery. You are betting you will be the last person to buy a ticket. With each ticket costing you $0.60, $1, etc. The so called "price" of the item is irrelevant.
Why when you pour water into a pot with hot oil it reacts like that?	Oil floats on water, so the water gets under the oil, quickly boils, and the escaping steam blasts little droplets of oil all over the placeWater immediately falls to the bottom of the pot/pan, underneath the oil. Because the pan/pot is presumably at a high heat, it vaporizes very quickly into steam. Since the water is coated by oil, the steam can only escape by "exploding"Oil is really, really hot , so when you pour water into it it will turn into steam more or less instantly, and that "explosion" of steam will throw oil into the air as well
How do meteorologists report what the temperature “feels” like	How the temperature "feels" actually matters. The feel is actually a better measure of how much heat loss/gain your body is experiencing than the actual ambient air temperature. For instance, say it is 1F today, and the Wind Chill makes it feel like -10F. As your body radiates heat, a buffer of warmer air forms around your body , helping insulate you from that 1F cold air. The reduced temperature gradient means you lose heat more slowly. However the wind _blows away_ that shell of warmer air, constantly replacing it with 1F air, which means the temperature gradient between your body and the air is steeper, and you lose heat faster. That is why it feels colder, and that heat loss is much more relevant to your health than ambient air temperature. The same sort of thing is involved with humidity, when it feels hotter than the ambient air temperature. High humidity inhibits your body's evaporative cooling system , and therefore your body has a harder time getting rid of the excess heat it is generating. That is why it feels hotter, and that heat retention is much more relevant to your health than ambient air temperatureThat number is a combination of the temperature, wind chill, and heat index. Basically it takes wind speed and humidity into account.
EL5: Honestly, what the fuck could happen if my iPad stays on when the plane lands? (I'll check this in 15 minutes when I'm on the ground)	Nothing electronic-wise. Its so you 1)Will pay attention if there is an emergency and not be listening or music or distracted. 2)In case there is a hard landing they don't want those things flying around the cabin . Off is so you won't be tempted to grab it anyways.The issue with electronics on a plane isn't so much "what could one iPad broadcasting in the 2.4GHz band do to our systems?" as it is "what could thirty-one laptops, forty-seven cell phones, eighteen tablets, fourteen iPods, and twenty-three e-readers broadcasting on a variety of 2.4GHz, 700Mhz, 1700MHz, 2100MHz, and 5GHz do to our systems in a worst-case scenario?" So, no, your iPad is not going to crash the plane on its own. However, in combination with the sixty to a hundred other people on the plane, you definitely have enough broadcasting power to mess some shit up.The reason you have to turn it off is that there's an FAA regulation that says you have to turn it off. The regulation was put in place for a few reasons, but really not a lot of people were carrying electronics onto planes when the regulation got put into place, so it wasn't really a big deal. The regulation never changed back for several reasons: 1. If a plane crashes because it turns out some device actually WAS dangerous, the guy who changes the policy gets fired. If the guy never changes the policy, he doesn't get fired. So the policy stays the same.2. It's possible, although VERY unlikely, that some devices or combination of devices could actually interfere with a plane's electronics during landing. Figuring out which ones might be dangerous is complicated. So they just all stay banned. Weirdly, although I have to turn off my Kindle during take-off, nobody's ever asked me to take the battery out of my digital watch. They probably use about the same amount of power.
If I pay off my visa with a mastercard within my 21-day grace period, assuming the mastercard had said grace period as well, could I not just shuffle a debt indefinitely?	What you're describing is called a balance transfer. Most credit cards only give you the 21-day grace period for making purchases. You have to pay interest immediately on cash advances and balance transfers. TL;DR - probably not. You'd have to pay interest on your MasterCard from the day you use it to pay off your Visa. But check your cards' terms and conditions, because I'm only generalising.
Why do I feel like shit after a nap?	You wake up in the middle of a sleep cycle. When you sleep, your body is reorganizing your brain. Waking up in the middle of a sleep cycle is like waking up when your body has pulled everything off the shelves but hasn't started putting it back yet. I started using _URL_0_ and it made a HUGE difference.I was always the same way. I never could take a nap without feeling like crap when I wake up.It depends on when you're waking up from your nap. While asleep, you'll cycle between lighter and deeper sleep. . As a result, waking up in a 'deeper' stage of sleep will leave you often with 'sleep inertia', feeling tired if not more than when you went to sleep! Try fooling around with how long your naps take. 30-50 minutes, or 90 minutes, has generally been a good time for me, but everybody has a different cycle.
How is it possible that I can completely forget how to do something that I've done hundreds of times, even immediately after successfully doing it once?	I have discussed this with my Psych professor a few times. Our brains are still a deep mystery. I can give an example of myself struggling with this. I have put in my passcode for my dropbox hundreds of times. Then one day I forgot. I did not have the faintest idea what my code was. I didn't forget for a day or week. I forgot for a whole month a passcode I had used plenty of times before. So can we forget? I have discussed with him cases of people having strokes and forgetting how to do most tasks. However, a few of the tasks they had done many of times were easily remembered. Certain diseases like Alzheimers will make you forget those tasks. So there can be different causes for you to forget how to do something. You never really have to think about certain actions but there is still a cues that will go off and set off the set of actions required. If the cues aren't there, then that set of actions aren't correctly activated and just sit in your mind. I hope that makes sense.
How does mopping clean the floor, if the soapy water just stays on the ground?	you will typically mop in back and forth passes. The mop will get the floor wet which will help dissolve dirt on the floor. A second pass will catch the dirt. You repeat multiple times until the floor looks clean. You then put the mop in the bucket to get fresh water and release the trapped dirt. You do not necessarily use soapy water. That can leave a residue. Other cleaners that evaporate however can be usedUsually the mop soaks up the dirt and releases into the bucket of water you dip it in. Thats why if you mop a big area, you have to change out your water.
Why does the scent of petrol, cellotape, glue, correction fluid and a few other objects that aren't used for their scent appeal to people?	A lot of those chemicals contain some amount of benzene. Benzene-like compounds are referred to as "aromatic". They have a fairly strong and often pleasant or sweet odor.I find the smell of gasoline and diesel appealing. Pretty much any fluid for a vehicle other than coolant I like. I assume it's because I am a gearhead and the smell of fresh fluids means that everything is working great, and you're getting to work on your vehicle. The smell of Coolants however is known as a problem, as the vehicle is overheating or having issues. It might just be psychological me not liking coolant though.Diesel exhaust smells amazing to me but this is probably just nostalgia for childhood boat trips.
How does a speedometer work?	Speedometers work by linking a flexible cable to the car's transmission. As the engine powers the drive shaft, it spins the cable about it's central axis ? The cable then spins a magnet near the speedometer. The speedometer has a metal needle and a spring that pushes the needle towards 0 mph. As the magnet spins faster, the needle is pulled along with it. The spring prevents the needle from just flying wildly around. The physics behind how the magnet pulls the needle is fairly cool. It involves eddy currents, but it might be too much for ELI5.In newer GM FWD speedos, the VSS is a simple electrical generator, sitting right next to one of the transmission gears . Every time a tooth from that gear passes by the VSS, an electrical pulse is generated. The rate at which they are created varies from transmission to transmission; but for example, the Getrag 282 generates 4000 pules per mile. The shorter the interval between pulses, the quicker the car is travelling. Circuit boards in the dashboard interpret the VSS output and move the speedo needle accordingly. Here is a ELI25 explanation: > The speedo needle is driven by a so called air-core meter . Regular meters work by a needle which is pulled back to zero by a spring and a coil forces a magnet away from the zero position if current flows through the coil. An air core meter uses two coils which are at an angle of 90 degrees to each other. These coils are called the sine coil and cosine coil. Each coil produces a magnetic field proportional to the current flowing through it. Since the two coils are at a 90 degree angle, the two fields add up to a "magnetic vector". If a magnet is placed in the middle of this field, it will point in the direction of this magnetic vector. By varying the current through the two coils, the needle can utilize all 360 degrees of the gauge. [Source]
How hard is it to change your name?	In the UK, it's similar to what RabbaJabba says about the US. Here, we call it "changing your name by deed poll". You obviously need to prove who you are, and there are rules about what you can change your name to. The really don't care why, although you do have to affirm that you aren't trying to get out of something legally - under oath. When I did it, the law here was disjointed between the sexes - women can get it easier - when getting married or divorced, for example, it's free and there are no special forms to fill in other than the marriage papers. On the basis of equality, my wife and I decided to double-barrel our names meaning we would both have a name change. We could have gone for the option of recording her name change on the marriage papers, which would have been cheaper, and instant, but our names would have been different for a while. In the end decided to both of us would go down the "deed poll" route.The process will vary depending on where you live. In the US, it'll even vary by state. Usually, though, as long as you're not doing it to evade legal troubles or to change your name to something to intentionally confuse or incite people, it'll fly. Usually it'll be something you file with the state, after which you have to contact Social Security and one or more state agencies to update your information. In many states, though, you can just start using a new name , and it can become your name for legal purposes.
why are certain products designed so differently in different markets?	Some of it is market preferences, which may simply have been set way back when products were first introduced decades ago. Could also do with things like what surfaces get cleaned most — Americans have more carpeting on floors while I think European homes use vacuums on hard floors, drapes, etc. Trucks are a combination of road/space constraints, various safety and fuel economy regulations.The truck design have a lot to do with the law that regulate them. The US limits are for the semi trailer only and not the total length including the truck. The EU limits are for the total length of the vehicle including the truck. So a long engine i front of the truck is simpler to access the one where the engine is below the carbine. So the US truck are longer because the are simple to manufacture and manage. EU truck are included in the length limit so if it is shorter you can have more cargo so there is a reson to build them that way even if it complicate maintenance and make them a bit more expensive because you get more cargo space. I don't know why the regulation are different. The US federal regulation done have a max length but say that a stat can't have a lower limit then 48 feet for the trailer and cant limit the total length. I don't have a good idea for vacuum cleaner but the likely explanation is when they where introduced the manufacturers in the US for some reson designed one model and manufacturers in Europe made another model. The design stuck and is what the consumer are used to. Product like vacuum cleaner was back in the day manufactured locally and international trade was lower then today. They was also design for 110V vs 220V so you could not import a US vacuum cleaner without a total redesign of the engine so the US and EU marker are a bit more separated then one would guess today compared to other product that don't use mains power directly.
Why Intel and AMD don't make smartphone CPUs?	Because they were making a lot of money off of desktop and server CPUs. And smartphone CPUs need to be fundamentally different from desktop CPUs because they need to be very power efficient. Thus they would effectively have to start from scratch to create a mobile CPU or try to make their x86 CPUs more power efficient. By this time ARM had already cornered the market. We do see that Intel has been slowly trying to get their inherently bulker x86 architecture on mobile CPUs, such as Atom and whatever they put into the rare Intel smartphone/tablet, but in terms of power efficiency, they are still catching up to ARM based CPUs.
How Stephen Hawking has managed to survive with ALS for so long?	It is common knowledge that Stephen Hawking died long ago. His chair achieved sentience at some point, critics disagree on when, and is currently posing as the scientist.> Don't people usually die much sooner? Usually, but he got the [early and slow version]. Most ALS patients don't live past five years or so after diagnosis.
Why Google might possibly not go national with fiber when internet is an industry in desperate need of disruption.	They don't have to offer fiber in every single market to disrupt the ISP ecosystem. All they have to do, and all they're trying to do, is embarrass the ISPs into making progress. Google doesn't really want to be everyone's ISP because that's not their core business.
Where did the idea that classical music makes infants smarter come from, and has it been proven?	There was a study that showed pretty well that listening to music made adults temporarily better at doing a spatial reasoning paper folding task. This sort of melted into "classical music only specifically makes people smart" to "classical music makes babies smart". It's some pretty big leaps from the original study.
If elephants are being slaughtered for their tusks, why don't reseves remove them without injuring the elephant so the poachers have nothing to slaughter for?	Quite often, poachers don't kill the elephant first-just cripple or sedate as necessary. Removing the tusk is a severe enough injury that the elephant will die from blood loss soon after, while in debilitating pain for the remainder of their life. Keep in mind, they go deep into the elephant's face, often a foot or more. There's no safe way to de-tusk elephants. ", 'I think everyone is also missing the fact that elephants have tusks for a reason in the first place. They kind of need their tusks: "Tusks serve multiple purposes. They are used for digging for water, salt, and roots; debarking or marking trees; and for moving trees and branches when clearing a path. When fighting, they are used to attack and defend, and to protect the trunk." - Wikipedia. Even if it were possible to safely remove the entire tusk and remove any incentive for poachers, the elephant probably wouldn't do well living in the wild without them. You may have saved it from a poacher only to die from an injury when a predator or other elephant attacks and it can't defend itself.For one thing, it's difficult to 'remove them without injuring the elephant.' Sedating a large animal is not an exact science, and tusks are like our teeth, connected to the animal in somewhat more complicated fashion than a rhino horn. Also elephants use their tusks, so you're potentially reducing the animals' chances anyway. And it's also simply not certain that removing the tusks will save the animal. If you are a poacher and you track some elephants only to find they have no tusks, you don't want to wind up tracking them again next week and wasting your time. Killing the elephant prevents that problem.
the U.S. fiscal cliff approaching and why it's coming?	This was asked a couple hours ago and got a pretty good response I thought. I'll link it _URL_0_
What has atmospheric pressure to do with wind speeds and the wind force? More Info In Text	Atmospheric pressure is basically the weight of the column of air sitting on top of you, so it's directly linked to the atmosphere's density. Wind speeds are just, well speeds, it's an important factor but in physics, we know kinetic energy is directly proportional to the object's mass. Mars' surface pressure is only 0.6% of that of Earth, which makes its strongest winds incredibly weak compared to ours.
What happens if you move a nocturnal animal from one end of the world to the other?	No, it would be active at night. In the same way that we adapt to time changes when we travel so would theyWe moved our cat with us across time zones and he adjusted to the new day/night schedule just like we did.
Why is the Swiss National Bank saying it will buy all other currencies in unlimited quantities? ELI5	The Swiss Franc is actually too strong verses other currencies right now. This sounds like it would be a good thing and too a degree it is but Switzerland relies on exports as a major part of its economy and if no one can afford your exports then you have problems so they wanted to cap the value of the Franc verses the Euro at 1.2 Euros per Franc. Now capping your currency on paper is one thing but actions is louder than words so they feel they have to enforce this by buying the crap out of currencies in an effort to make the market do what they want it to do. The idea is, we set the cap, now we are going to buy currencies and make the currency market follow what we are doing.Maybe not quite at the 5-year-old level, but here's a good podcast about this topic: _URL_1_And a blog post: _URL_0_ The gist is that because of all of the uncertainty in the markets, a ton of investors have been buying up the Swiss Franc over the last couple weeks drastically inflating its price and making their exports too expensive.How much does one who lives it Switzerland earn? - could you work in Switzerland buy currency and retire in america like a king?
Why is the Middle East perpetually in conflict?	* Muslims have multiple sects and some of the members want the others dead. * Israel and Palestine both feel they have divine claim to the same portion if land. Neither side has a point of compromise and many would rather die than lose.* The US and Russia have enormous monetary interests in the area and use these countries for proxy wars from time to time. The first gulf war was a great example of this; it was a weapons demonstration between the US and Russia * Countries like Afganistan have some 3 trillion dollars of untapped natural resources* Little wars used to be common everywhere Before machine guns became a thing. A lot of the world fought two world wars learning how machine guns changed thingsThe area was cut up like Africa. Meaning none of the conflicts between cultures was an influence in the diving up of land.Basically, they invented three different religions that all claim the same cities as 'holy ground'. That kind of thing seldom ends very well.
why does turning on your wifi on your phone, even if not connected to a wifi, help pinpoint your location.	In the background the phone is scanning for which wifi hotspots it can see around you. Given this information your phone can ask Google/Apple/etc over your mobile data connection where hotspots with these particular names are located, these companies will have large databases of such information and can tell you roughly where you are given this list of hotspots. The relative signal strength of these different networks can then be used to calculate where you are relative to all of them. Google/Apple/etc build these databases by occasionally having your phone report it's GPS coordinates along with what hotspots it can see. I think androids used to commonly do it when you put them on charge. Google also used their streetview cars to do the same thing on a slightly larger scale, recording what hotspots they could see constantly as they drove around photographing.Google Street view cars also catalog access point ssid's and Mac addresses and bind them to the GPS location of the car. Then your phone says, "yo Google, here's some info. Where I be?" . The info is then triangulated using info in the database created by the street view cars, to give your phone its most likely position on this pale blue dot. I believe Google was sued by some jack knob for collecting this additional information, but I'm too lazy to do a simple Google search, so I'll leave the rest up to the reader.
Why can it be really bright inside and I can see my phone screen just fine but when I'm outside it becomes hard to see?	It's because the surroundings are really bright, your pupil contracts. This helps you see the surroundings. But your phone can't match the brightness. This makes your phone appear darker.
Why do we get white marks on our fingernails?	Your nails are actually layers bind together. When something hits your nail the layers separate and the trauma spot will become opaque. The only way diet could affect it is when you don't get enough nutrient and your nail becomes weak and more prone to damage.
When birds fly, do they know where they're going every time or do they just land wherever?	I live near a long string of parks. Over decades I have watcher the behavior of Canadian geese in particular. Groups will do to the golf course or another pond on a regular schedule. They fly a direct route between these locations. They definitely know where they are going. I remember one terribly windy winter day when a group wanted to go up wind about three miles. They all took off, but one goose could not keep up the pace in the wind. The lead pack turned around and landed while the tired goose rested. I don't think they ever visited the other pond that day. I have seen many examples of such behavior. Other observations: you can tell how far a group is going by how high they fly. Geese flying from pond to pond may fly 100M above the ground whereas birds going 10 miles or more will fly 500m or more high. I conclude they know what they are doing.i believe birds have a "magnetic sence" that allows them to always have a mental compass. They also have pretty good memory. back in my grandma's house there's a chandelier just next to a window. every year at the same month the birds would come in and make their nest on the chandelier. my grandma just lets them be. I figure either they are the same birds or the children of said birds
Where does the term 'ninja' come from if in Japanese it's 'sasuke'? And is ninjutsu something different in Japanese? Sasukejutsu?	Are you talking about the show Ninja Warrior? That show was called Sasuke. Ninja is a Japanese word, as is the alternate reading, Shinobi. The word literally stems from the character "endure." There's arguments that there was never really a historical ninjutsu, as a distinct art, but that most of the ninja aesthetic comes from theater, where the all-black outfit originated with stagehands.The word ninja is made up of two different 'kanji', characters that have pronunciations and meanings. The first character that makes up the word ninja is '忍'. It can be seen as the verb 'shinobu', or to sneak around . Now, to indicate someone is what we would call a ninja/sneak thief/incognito traveller, you could use 'shinobi no mono' , or, roughly translated, a person of sneaking. Abbreviated, you get 'shinobi' referring to these sneaky ninja guys. Ok, with me so far? I'm not too good at explanations. The first character in the word 'ninja' has an alternate pronunication from the one given above , that of 'nin', again with the same sneakyness-meaning. The second character simply means person . Notice that this second character is also used as 'mono' in my example of 'shinobi no mono'. TL;DR: Shinobi and ninja are the same thing, they're Japanese words with basically the meaning of 'sneaky person'.Sasuke is a term used to refer to male ninja, while Kuno-ichi is used for females. You have probably heard of the term "Shinobi" used to refer to what you know as ninja, written as 忍 in kanji. Each kanji character can be read in many different ways, and so ninja which basically means "shinobi person", can be read as both "shinobo-mono" or "ninja".Not sure where you're getting sasuke from. But shinobi is the other word more commonly used for ninja.
Why is the 1-2-3 on the top row of a phone keypad but on the bottom row of a calculator?	the first phones with an actual keypad used it to match the old rotary phones, which had the lowest number first. calculators existed before that, and had already established the 7-8-9 on the top row', "Numberphile did a video on this: _URL_0_ Tldw; The 3x3 grid style was settled on because it was the easiest to make. Calculators existed before phones with keypads and that layout was decided upon without much thought. When keypad phones came in, Bell labs performed experiments and found that the 'phone layouts' led to fewer errors in entering the numbers and was considered more natural by the general population. So, phones adopted the new, better layout whilst calculators stuck with the older layout.
Why is the search for "intelligent life" so widely talked about and seems to be a prominent goal for NASA?	First of all, you're correct. Finding any life would be a big fucking deal. However, that's actually not very likely to happen. What's much more likely is that we will find evidence of alien technology, such as radio signals or something else that travels at light speed. Remember, any evidence that we find will have to travel from where the aliens are to where we are. If you think about a cow, or a worm here on earth, there would be no way for an alien who is not on earth to know that the cow is here. But humanity's technology does have signals that could be picked up from other planets . So the assumption could be made that without setting foot on an alien planet, the only way we are going to detect life is via the signals that technology puts out. Therefore the life would be intelligent.
Why do we use White and Black to describe race when the skin tone is actually Beige and Brown?	Color vocabulary has evolved and expanded throughout time. I highly doubt the word \'beige\' was around when this usage was solidified. We do this all time time when it comes to naming binary pairs, in order to easily distinguish them, even when the designations don't match up perfectly. Think about white pepper. It's definitely beige, but we call it white because it's easy to contrast with "black," which is the name of the other kind of pepper we use[Some people are actually black or white]. Either way, the words beige and brown were probably not around back when they needed a word for it.White people are pink/peach/brown. You don't notice until you open a photo of someone and use the colour-select tool n random places
Why do TV shows do the fake lines on the screens to make it look like a home recorder, when today they look the same quality?	To convey to the audience that the scene is taken with a recorder, in universe. They do a lot of shorthand like that. The "shink" sound of a knife being picked up. Dial tones on cell phones. People typing on computers and the individual letters appear on their face. It's not realistic but serves the story.
We are one consciousness experiencing itself subjectively	Here's a short story that I think gets the idea across very effectively: _URL_0_ There might be more 'philosophical' ideas about it out there, but this introduces one idea about it in a very understandable way; with this context, it might be easier to understand the more complex ideas.
Why the smoke curling off the tip of the cigarette is blue, but when you smoke the color of smoke is white?	It has to do with the lungs adding water vapor / stuff to the smoke which affects its Rayleigh scattering. Walter Lewin has a nice demonstration/explanation of this in one of his MIT lectures. [_URL_0_]. .
How anxiety and stress cause physical symptoms (Specifically tinnitus, dizziness, headaches, numbness)	Stress causes your blood pressure to rise and this causes the headache and numbness. Higher blood pressure also makes it easier for your blood to transfer oxygen therefore increasing your stamina. This helps if you are being chased by a lion but is bad for your health if you are always stressed out. Check with your doctor if you have high blood pressure, maybe he will give some high blood pressure med's or an anti-anxiety drug like Valium.
when my phone is fully charged it tells me to unplug it to save electricity. Is it actually more efficient to run it off the battery?	power is being converted by the transformer even when it is plugged in and being converted to heat, so yes sort of.A phone uses an infinitesimal amount of electricity when charging. Let's do the math. 1 amp X 5 volts = 5 watts 5 hours a night = 5 watt hours. 365 days per year = ~2 kilowatt hours. In NYC right now, the cost is 20¢ per kilowatt hour, so, a year's charging is around 50¢. For those saying there are power losses from the transformer, I'll round up to $1 per year.
Do twins get concieved from the same singular sperm that reaches the egg first?	There are two types of twins, identical and non-identical . Identical twins form when a single sperm fertilises a single egg, but somewhere, early in foetal development it splits in two and both continue developing into children, resulting in two children with identical DNA. Fraternal twins form when two different sperm each meet a different egg, and both fertilised eggs develop into children. This results in two different children in one pregnancy.
Why do newly released blockbuster films only circulate on the internet when they have been released on DVD?	First of all, cinemas don't get their movies on DVDs . They used to get movies on movie reels back in the days of analog film. These days cinemas receive a Digital Cinema Package, or [DCP], which is basically a computer hard drive in a special enclosure which contains the movie. So, as long as a movie is still only in theaters, versions of it in the wild on optical media should be few and far between. A proverbial handful of 'screeners' is likely in the hands of journalists and critics around the world though, in the form of DVDs usually, for reviewing purposes. Security on these is really, really strict. They are usually unique for each person that receives one and contains secret watermarks and other security features. As for the previously mentioned DCP's: the format the movies are in on these devices is very unusual, consisting of hundreds of thousands of individual files . Besides that, it probably has additional security to prevent copying, if it can be done at all. So, in a nutshell, that's why we have to wait until the retail release for good quality releases of movies.
Why do guys insist on sending unsolicited dick pictures. Does that ever REALLY work?	Men are very visual creatures, and quick to arouse. A man can go from no arousal to immediately turned on just with a quick flash of a girl's boobs. As a result of this nature, many men don't grasp that women don't work the same way, and aren't interested much in seeing a dick unless already aroused. Combine that with the general negative effect that arousal tends to have on your ability to make good decisions, and you have horny men sending what they think are arousing pictures to someone who is in no mood for them.
Why don't phones just capture video in horizontal mode no matter which way you hold it?	The actual sensor in the phone that captures the image is itself also rectangular - in the same direction as the phone screen. To make the phone record video in horizontal mode when it is held vertically would result in using a lower resolution, as it would require ignoring a large portion of the sensor . To continue to capture the image in full resolution, horizontal mode would require the sensor to rotate with the phoneIt is capturing in "horizontal mode" - people are just holding their phones the wrong way.
why storing 256mb of data in the 70s require a massive machine, compared to a tiny USB stick now?	There's two reasons, really: the second is as a result of the first, to some extent. 1. Our ability to manipulate minute things has improved, as has our capability to mass produce fiddly little things. 2. We've developed different things to store the data in/on. Back in the day electronic data storage was limited to tape - yes, the same kinda stuff as your old audio cassettes/VHS and Betamax. The tape is magnetically charged and the charge can be altered along the length to produce a string of different states which represent your data . Storing data like this is sequential, so it means that you have to rewind to the right part of the cassette to find your data - it's slow & clunky. Hard drives employ a similar idea in that the data is stored as magnetic charges, but instead of being along a strip of tape, it's stored on the surface of a coated metal plate. The data is stored along a spiral path a bit like the groove on a vinyl record. This is much more densely packed and precisely made that it can spin at high speed making it much faster to access than a tape - but you still need to find the right part of the drive before you can access your data. Flash drives work on a different principle. They are a series of memory locations which can be electronically written to & read directly. You specify what you want to write, & tell it the memory location, and it writes directly to that location without the time needed to find the right part of the drive. The reason these technologies have gotten smaller is that each one reduces the need for any mechanical parts which take up a lot of space. In addition we have become more adept at packing data in more densely.
What happens if I bring a plant with a seasonal lifecycle indoors? Will it skip its dormancy or die out of confusion?	That depends. Plants are numerous and very diverse. The easiest example I can think of is the Venus Fly Trap. The biggest mistake short of not giving them full sun is that people bring them indoors to keep them warm over the winter. These plants require a cold, relatively dark winter dormancy or they will die of stress after two or three missed dormancy. Other plants might be fine, and others might enter and leave dormancy at arbitrary points. It depends if the dormancy is strictly required or not. As for annuals, it depends if it is a true annual or just a plant that happens to live as an annual. True annuals will die after reproducing regardless of temperature. Plants that happen to live as annuals in the area can live much longer, but are killed by unfavorable environments first. True annuals will live no longer, and might live shorter indoors, while plants that are really perennials will live for years if you actually take care of themThis will very much vary between plants, and the environment they expect vs what they experience indoors. Some might be fine. Some will still have cycles but they will be different than the ones they 'd experience in nature. Some will die, because they need that dormancy period .
Why don't submarines have cameras mounted on the outside to aid in the use of sonar?	It gets dark underwater really quickly. Without a visible light source, you probably wouldn't see more than a few feet, which is vastly less than what sonar can give you. And that's assuming you got clear water, which usually isn't the case.
Why does my room not stink to me, but when my mom walks in she thinks it's horrible.	Animals rely on scent as a sense to understand their surroundings. Take a poodle, give it a perfumed bath, and it'll still sniff that fire hydrant given a chance. Take a retriever, have it roll in a carcass that it uncovered somewhere, and it'll still be able to whiff out a concealed hot dog. Our mammalian brains have figured out how to filter and erase the most common and strongest scents that we are exposed to over time so we can smell new ones that might mean "food" or "danger", and we 've carried this forward into our modern lives. It's why we can't easily smell our own B.O., but other people get a nose-full and WOOO.Simply because if you're in your room more often than her, your nose is far more used to the smell of your room than her. That's it.
Why does your jaw drop when you are amazed or horrified?	Does it actually do that for most people? I've always just thought that was a cartoonish way to show those reactions so it would be clear.
why should the ex-partner of a marriage get half of their ex-partner's business when they divorce	You have to look at these things from the perspective of the "whole family". One spouse might be working day and night to build a business and generate a lot of money for the family. But in doing that, they're NOT looking after the house or the kids or the dog, they're not cooking or cleaning or setting up the house for a business social function. The business person's spouse is often doing all of that, contributing to the whole family in other ways while the moneymaker is off earning money. In the eyes of the court, the stay-at-home spouse deserves half of the money that the business spouse makes because they contributed all those other things to the marriage and made it possible for the moneymaker to spend their time and energy on non-family activities. It's the equivalent of their salary for all of the years of service that they pumped into the marriage. There's other factors such as "maintaining a certain standard of living" and "funding the raising of the children" , but the contribution to the marriage is usually the biggest factor.The reasoning is that if you share your life with someone then anything you do during that time is made possible by their support. For example if your wife is a stay at home wife and your a business man making lots of money, the reasoning is that you would not have the same amount of time to dedicate to work if you had to look after your own house and/or children. That being said many place only take into account what happened during the marriage in the 50/50 split as they understand anything accumulated before the marriage was done on your own. It gets tricky when things persist before and after the marriage like a business because it's an ongoing effort to maintain it that in theory was made easier by your partner joining you. That would entitle them to some percentage in most areas but possibly not 50% This is all dependent on the divorce laws in the area your talking about though as they vary widely and some are more strict on splitting assets than others.
Why do our noses run when we're outside in the winter?	In the winter, it's important that air becomes warm and humid before entering your windpipe and lungs. Cold, dry air would harm the delicate tissues there. One of your nose's jobs is to help make air more suitable for breathing. The snot your nose is producing helps moisten the air you're inhaling. It actually has fun-shaped chambers inside that air swirls around so it has plenty of time to get warm/wet/whatever enough.
Why is it obvious when someone deliberately avoids looking at you?	There are very few people who can exude a natural demeanor when they are actually forcing it. Basically, they are trying to physically fake what they think they look like when they aren't paying attention to a specific stimuli. It's easy to spot because people aren't good at this and it's apparent in their face, body, and just how they carry themselves in general.
Knot, as a unit of speed	If you represent the earth as a circle containing 360 degrees, a nautical mile would be one minute of a degree. A knot is one nautical mile per hour, or one minute of a degree per hour. Very usefulA knot is a nautical mile per hour. A nautical mile is 6000 feet, so a knot is slightly faster than 1 MPH.
Why does intense hunger sometimes cause nausea? That seems like the opposite of what should happen.	Because your body is trying to encourage you to eat! Here are the two possibilities I've read about: According to when you eat, your body will release a hormone called Ghrelin which makes you feel like you're starving, possibly to the point of feeling nauseated. So if you normally eat every four hours and you missed a meal, your stomach starts to release ghrelin whether you need food or not because you've trained it on a schedule. Ghrelin normally stops being released after 30-60 minutes so it doesn't impact you actually getting food and that feeling of nausea will go away. It could also be low blood sugar! Your body could be releasing the hormone, Glucagon, which can cause nausea. If your diet is higher in refined carbohydrates, you're not used to burning fat because you have more sugars in your diet. If those sugars run out, your body starts to burn fat and this might cause a dip in your energy levels, headaches and nausea.
Why do most SUV's, Hatchbacks, Station wagons, Vans all have rear window wipers, but almost ALL sedans, never do.	I think I know the answer to this one! The near-vertical boxy non-aerodynamic shape on the rear of SUVs vans etc tends to cause dirt from the road to end up on the glass, sedans don't suffer from this effect as much.
What does the "Night Shift" feature on an iPhone actually do? What are it's benefits?	it basically reduces the amount of blue light that's displayed by the display when the ambient lighting is low. blue light can interrupt sleep patterns and is generally bad for your eyes in low light.
why is the reverse side of a coin called "tails" ?	Typically the other side has someone's head on it, so the opposite of "heads" being "tails" is rather fittingBecause "Head or Ass?" is a question for a different situation.
Why do we find organs and other insides of the body so revolting?	I would have to say that it's just a natural response. Those things are supposed to stay inside and when they come out your brain just automatically knows something isn't right.Because it's all one giant blob you see, and then realize that that stuff is inside you too! If you are over your initial shock and take things apart however you will go "oh cool, that is a kidney."I accidentally looked down after my wife had her C-section It was the grossest thing ive ever seen.
How do you train a dog to do complicated tasks like grab something from the fridge?	Operant conditioning. Basically, dog does something vaguely relating to the task and gets rewarded. Teaching a dog to open the fridge would start with the dog being rewarded for approaching the fridge upon command. Them rewards would subside and they would be encouraged to interact with whatever handle is given to them on the fridge. Often times this "handle" is an object they 've already been trained to pull. Essentially, be patient and reward baby steps. Spoiling your dog is OK, as long as it's done at the right times. Dogs will do what gets them rewards. If you reward them for nothing, they'll want to do nothing. The thought process is "why should I work for this thing if I get this thing from [easier behavior]?" Don't feel bad about your dogs rolling over btw, a lot of dogs aren't comfortable doing it on command. I don't believe in dominance based training but rolling onto their backs is body language for "I am begging you not to hurt me," so it's very uncomfortable for a lot of dogs especially if you're pushing them over with your hands. [The now passed Dr. Sophia Yin] has amazing resources for positive trainingIf you haven't already then you MUST watch the documentary about how they trained dogs to drive a car! _URL_1_ Edit: the above link is the short version. Find "drivingdogs" on youtube and they have a video on each of the stages. Makes it even more impressive!
Why does attraction cloud judgement?	You have a reproductive instinct that drives you to breed. It is outranked only by basic survival - the hierarchy of needs Genetically, reproduction is your one and only purpose beyond survival, and even the quality of your attempt is secondary to any mating at all. The reproductive drive also doesn't need any rational analysis getting in the way, so it can't let you stop and think whether you actually want to breed. The solution is to slam you with a wall of endorphins and similar substances that basically intoxicate you and affect your decision making. Life itself invented the idea of getting us drunk so we get laid.It's the "What would you do for a Klondike Bar syndrome". While you may not want to do X for "reasons of judgement", you may reconsider your reasonable judgement if you get Y in exchange for X.
What causes the rhythmic beating of helicopter blades in motion?	Vortexes! A wing moving through the air creates high pressure below it and low pressure above it. At the tip of the wing, the high-pressure air from below spills sideways and swirls around to the top of the wing, creating a [wingtip vortex]. The rotors of a helicopter are just like the wings of a plane, so they have wingtip vortices too. But unlike a plane where the vortices just dissipate after the plane has flown by, with helicopters there's an extra layer of difficulty. As a rotor spins around, it ends up slamming into the vortex of the rotor ahead of it! This creates a whumph sound as the moving air hits the moving aluminum at high speed. When it happens repeatedly at certain speeds, you hear a repeated whumph whumph whumph whumph.
Why is being fat less attractive?	I read somewhere once that attraction has a lot to do with a primal/subconscious desire to pick a mate based on chance of success for offspring. Like a woman would want a muscular man because her children could be strong. So maybe more obese people would be unlikely to out run danger and therefore not a good choice as a mate. Additionally as someone pointed out society/culture probably has some influence as well. Source: I likes to internet', "Attraction is partially culturally determined. Past cultures have viewed fat as attractive. One of the earliest works of art is a stone piece of a very large woman. Perhaps to represent fertility. If you look at older works of Art in the west, you'll notice that the women are rarely thin. They're not necessarily obese, but they're definitely bigger than the current standard.
How does wrinkle-free clothing work?	Fabric wrinkles because the chemical bonds that hold it in place are broken by heat and water. When they dry and cool the bonds reform and they get stuck in the new shape. Different materials are more or less susceptible to this. Polyester for example is not so bad. But it not so nice to wear. For example: Water breaks the hydrogen bonds in cotton that's why it's really wrinkles easily. Manufacturers replace these hydrogen bonds with other chemicals so that they don't break when they get wet. So it can stay wrinkle free-ish. There is are problems with changing the chemical bonds in fabrics that make them weaker and less pleasant to wear. That's why there are no really great wrinkle free fabrics yet.
Why dont other countries have military bases in the US, While the US has bases in many other countries?	The US has a huge military force with the primary mission of projecting force worldwide. Most other countries have comparatively small forces with a mission of only local self defense or regional force projection. Local self defense obviously does not require bases half the world away. Many countries also depend on the US for military protection. The US has always been the backbone of NATO forces, with the other members being a relative footnote. Western European states therefor have many US bases because they depended on US forces to protect them from the USSR during the Cold War.It is the result of the end if World War 2. In short, as the war was winding down, Stalin, Churchill, and FDR convened in Yalta in Crimea to discuss how the liberated countries of Europe would be granted self governance. In reality, as the war ended, the Russians already had plans for occupied territories. The UK and U.S. realized this, so it outlined essentially how the powers would be divided as the Cold War commenced at the end of WWII. The U.S. began spreading its military throughout its occupied territories as Europe was rebuilt and subsequently divided across ideological lines. Furthermore, Europe lost a lot of power after the war. As a result, their territories fought and gained independence quite rapidly. Power vacuums were left, and communists, nationalists, republicans, etc. fought for control of their governments. Well, that, or brutal dictatorships developed from offices once regulated by European powers. These nations were easily exploited and/or open to influence from both the Soviets and the Americans. As a result, aid and resources flowed from both the world's superpowers. A lot of countries had resources from either power, especially in the Southeast Asia and some Latin Countries. Because our power and influence was contingent on having control of these countries in some regard, the U.S. stationed basis there. For instance, n Europe, the U.S. had control of military strongholds.
How do pictures get from the hubble telescope back to earth?	Pictures are taken by instruments, digitized, and sent to Earth by radio. It's sent to a Tracking and Data Relay Satellite, from there to White Sands New Mexico, via ground optical fiber to Goddard Space Flight Center in Greenbelt Maryland, and finally to the Space Telescope Science Institute in Baltimore. About 125GB/day is sent through this path.Radio. The HST uses a digital image sensor, so all the data it works with is digital, and is transmitted to the ground on S-band microwave at 2255.5 MHz.
How did the word sanction come to have two completely different meanings: 1. to approve something and then 2. A threatened penalty?	It comes from the root sānctiō, meaning "a law or decree that is sacred or inviolable." The verb sanction still essentially means the same thing for the positive or negative - to 'sanction\' something is to give it official approval. So technically the noun also means the same thing - a rule or decree that has official approval - even though this rule can be a positive or a negativeIt's an [auto-antonym] or "contronym", a word that also means the opposite of itself. Other examples are: * clip - to attach or cut off* dust - to remove or add dust* literally* overlook - miss something or watch over something "Nonplussed" is also one. It actually means "surprised and confused" but because of how it looks people thought it meant the opposite and started using it that way, so now it's a contronym. "Literally" went down a similar path when people were using it for effect to mean the opposite, so now it means both.
Why is it that mirrors flip images horizontally (i.e. Left to right) but not vertically (up and down)?	They flip front to back, up remains on your up, and your left remains on your left. You just see a face in the mirror and assume that you must have rotated, since you have an arm on your left and an arm on your right, you assume that they were swapped since that's the only way people can do that in real life. You don't think people flipped top to bottom because they have a head on one side and feet on the other, that obviously didn't happen.
Why does inhaling helium from a balloon make your voice sound high pitched like a cartoon character?	Helium is 6x less dense than oxygen, so the sound waves travel through them faster and you sound like a cartoon character speaking quickly. Fun Fact: Sulfur Hexafluoride is 6x more dense so it'll make your voice sound slower.
Why do I suddenly shake when I have to pee really bad?	When your bladder starts to fill the pressure sensing nerves present on its outer walls send a signal to your brain alerting you that you need to pee. The pressure sensing nerves send this signal before your bladder is completely full to prevent damage. When you ignore that signal, your bladder continues to fill. You still have to pee, but you have decided it is ok to ignore your bladder approaching full. Your bladder is and can never be completely empty, because your body is constantly producung and filtering liquid waste from cells into your bladder. Luckily the bladder walls are very stretchy. Everytime you get the urge to pee, but ignore it, the walls stretch further. When you really have to pee and suddenly shudder, your bladder is full. At this point, the filtration system has backed up. Your bladder can rupture. You will probably pee your pants, as that is a natural way for your body to override your brain to keep from damaging the system. TL;DR The shuddering is the result of your body telling you it is in pain and you really need to pee. You can cause permanent damage to the stretchy properties of your bladder if you hold your pee for too long, too often. Basically, you cause micro-tearing that heals and forms scar tissue, limiting the bladder's ability to stretch in those scarred areas.When you pee, your body loses heat . To compensate for this loss, your muscles "shake" to create more body heat. It's your body maintaining homeostasis.
Why does most graffiti look similar?	It looks similar to you because you haven't learned how to distinguish styles or quality. If you had, you'd be able to pick out good from bad.
When scientific papers refer to the mass/size of the Mt. Everest (to compare), what numbers are they actually taking?	This is why real scientific papers use actual numbers and actual units, not "as heavy as a fully loaded 747" or your example. There is no official answer. They're winging itWhen you get to huge numbers like that, size comparisons are usually a pretty rough estimate. So it doesn't especially matter whether they mean just Mt. Everest itself , or the whole Everest massif , because both of those numbers are pretty similarly massive. So the article is just trying to say "really freaking heavy" and it's not trying to say "nearly this exact number." If it helps, the mass that google gives for a teaspoon of neutron star is somewhere in the range of 5 trillion kg. Which would probably closest to the mass of Everest himself - the smallest division of your picture. Which is incidentally around 1000 Great Pyramids of mass. All of those numbers are estimates and there's nothing really scientifically rigorous about them - all they're supposed to convey is scale rather than exact comparison.
what would the Catholic Church do if Jesus came back?	Probably flip a shit, when he turns out to be brown.They'd probably ask him to perform a miracle or two to prove it
Where does award money on game shows come from?	The TV company producing the show. A game show usually has significantly lower costs than a normal show, the only have to pay the salary of the host, there is only one set and very little special effects. That allows them to spend that saved money on prizes.
Why don't I always have the same level of cell phone service in the same spot?	The service depends on how many people are also using the same tower - the bandwidth is like a pipe. If there are lots of people around you with lots of pipes branching off the main one, there's only a little bit of water for each person.
I'm 27/m. How can girls on "The Bachelor" be ok with dating a guy who's making out with 20 other girls and in fantasy suite when there's 3 girls?	Most of them aren't. That's pretty much the entire plot line of the show. Jealously, cat fights, and falling in love for the "right reasons." The show has it all--except reality, basicallyYou'll come to realize that the term "reality show" is only half correct. They are shows that have almost no basis on reality. Heck, most of them are rigged before the season premiere.
Who authorises drone strikes and ground missions on foreign ground?	The person that authorizes it is different for each military. It is the person that is in charge of the military. For the US it is the POTUS. There is no higher authority that a country has to seek permission from, there is no global government. Edit: The link you are talking about is about Yemen giving aid to the US for their actions on Yemen soil. But the US does not need permission to carry out those actions. Yemen can choose to help , Choose to ignore it, or choose to attack the US for being on their soilIn the US, it is ultimately the president. They might authorize it personally, or they might issue an executive order stating the conditions needed to authorize a strike and leave it at the discretion of the military. Note this is essentially true for all military action. The president issues executive orders, which the military turns into policy and rules of engagement.
How are popular animated TV-shows made these days? Who draws all the frames?	Some are still produced in the West, usually with computer technology as a major enabler using tecniques like keyframing . One example would be [Friendship is Magic] which is produced in Canada. Many are also outsourced to lower-cost countries as you say. For an example, the [Avatar] series and The Simpsons are primarily animated in Korea but writing, storyboarding, sound recording and such happen in America. The artist Banksy famously made [a Simpsons intro] commenting on sweatshop practices in this kind of production, but it should probably be taken with a grain of saltA lot of shows are flash animated, such as MLP, using "symbols" that correspond to different body parts and animation.Other showed use a type of animation called reverse kinematics. This animation works by have you draw and character as separate pieces that are then set up with motion pegs or "bones". This animation normally looks horrible. Animation is both jerky and rubbery, there's nothing natural to it at all. The effort needed to make this sort of animation look good is more time consuming than learning to simply draw out every frame.Many shows are still drawn "by-hand" even if this means drawing all the frames digitally. Companies like Disney still do initial pencil animation drawings that are then cleaned up via computer.In the end a lot of shows will have a combination of techniques. They'll have some hand-drawn sequences, some computer generated animations, and whatever else fits the style of the show. Usually shows that are heavily stylized fall more on symbol and reverse kinematics use and shows that are more realistic are more hand-drawn.
why did Apple buy Beats?	_URL_0_ Nobody really knows, but the talks are happening. I personally think Apple made a mistake. Unfortunately Apple is getting a notorious reputation for coming out with stale ideas and overpricing . If they came out with their own awesome headphones it would be great, but instead buying another company means you aren't innovating. People liked Apple when they were innovators like Steve Jobs was.
Hat happens to water/food when it falls in the lungs?	A small amount of water will usually be okay provided it wasn't contaminated with bacteria. The tissues basically just absorb it. Food almost invariably results in something called aspiration pneumonia, basically it makes your lungs really sick from bacterial growth, and because of that your entire body responds as well . That pneumonia can be deadly.
How does vacuum insulation (like in a Thermos) work? Why is it so good at keeping things hot or cold?	Heat travels in three ways, convection, conduction, and radiation. Convection is from an air or fluid flowing over the object. Example: the steam coming off tea, or when you open a hot oven and feel a blast of heat on your face. Conduction is from the two objects physically touching each other to transfer heat. Example, how an egg cooks when it hits a hot griddle, or how you burn your hand on the stove. Radiation is from energy carrying particles hitting the object. This can travel through a vacuum and is how the sun heats the earth. By putting a hot or cold liquid in a thermos, you are preventing two of the three methods of heat transfer. You prevent convection because it's sealed so no flowing air goes over it, and Conduction because there is no matter in a vacuum, meaning there nothing touching so the heat can't transfer on touching things. Plus most radiation is blocked by the thermos not being clear . So you are slowing down heat transfer like how shutting down lanes of a road slows traffic.

Subsets and Splits

No community queries yet

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