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How would I get a visa to permanently move to the USA. Currently living in the UK. | Do not ask here. Call the US embassy. Look online. How would you earn a living? Remember, here there is no universal health care, no provision for your retirement unless you work at least ten years, then it is skimpy. Our taxes are high and benefits skimpy because we fund an expensive military. |
Why/How is abortion still is a huge issue in America at this time? | Why would it not be? Anything that people have a fundamental disagreement on is going to be an issueAmerica is an extremely religious country with some powerfully fundamental Christian veins running through certain levels of power. As such, there is a fierce debate over the morality of abortionBecause some people, incl... |
Why do call-ins and phone interviews on radio and TV shows sound so much lower in quality than actual phone calls? | In audio engineering, there is a saying that goes 'anything louder sounds better' - it's something a producer has to take into account when mixing a track. In this case, it is likely that when you talk to someone on the phone, your ears are right beside the source, which is why it sounds better than if you were to hear... |
If the landscape was dominated by giant 20 foot tall mushrooms 350 million years ago, and mushrooms spread like wildfire if their caps are kicked off, where did they go? | You appear to be talking about Prototaxites, giant fossilized columns discovered in late Silurian to late Devonian strata. First, not all fungi are mushrooms. These probably looked more like asparagus spears than capped mushrooms. Second, there is some debate whether Prototaxites are fungi at all. But putting both of t... |
How do shows and movies get converted to higher resolution copies? | Older movies are shot on film, which holds much more information than 1080p resolution is capable of displaying. 10 years ago, 1080p technology was new and expensive. There was barely a market for it and certainly no market for 4K. All older films were being scanned at 1080p for eventual blu-ray releases. These 1080p "... |
Why is it that in the ocean so many different species can live in such close proximity to each other but on land it seems like they live separately. | Volume of room. On land you have one flat plain while in the ocean layers. It boils down to volume vs. Surface area.First, the ocean has way more nutrients per volume than anywhere else on earth. Almost every river in the world dumps water full of dissolved minerals into the ocean. So there is a lot of algae, plankton,... |
Why did George Lucas make the last 3 movies instead of beggining with the 3 first movies? | When he made the first film , he didn't know it was going to be part of a 6-film franchise. He was just making a film. Sequels followed naturally, and I guess at some point he decided to do the prequels.Because he lied about the history of his own movies. The original "Star Wars" was released as just "Star Wars". It wa... |
Why do rabies cause an increase in aggression in animals? | The rabies virus has evolved the ability to modify the behavior of its hosts - making them more aggressive to increase the likelihood that the host will spread the virus to another animal via biting. Rabies is [not the only pathogen] to have evolved this behavior-altering ability. As for how exactly it increases aggres... |
If the government actually shuts down what does that mean for me. | Probably the same thing it did when the government shut down 5 years ago. If you have to ask: probably nothing.Not much day to day change for average Americans who don't work for the government. Most essential services will remain in operation, but if you want to go to a national park or renew your passport, you might ... |
bubbles! How can they hold their shape? What characteristics must a liquid have to be able to make bubbles? | The liquid must have strong cohesive properties. Cohesion means "sticking together", so the liquid molecules must have strong bonds to other molecules of the same liquid. |
What transforms otherwise normal people into "criminals"? | Well the most direct answer is that you become a criminal when you commit a crime. But the deeper answer is it depends. Some are doing it out of desperation, others out of greed, others out of rage sadism or some other misplaced emotion. There isn't really a simple answer to the question "what pushes someone to commit ... |
why does hydrogen peroxide works so well as a disinfectant? How does a substance necessary for life turns into another that easily becomes toxic? | Hydrogen peroxide is two oxygen atoms and two hydrogen atoms stuck together, but this is incredibly unstable. Oxygen *does not* like to be stuck to other oxygens, except for perhaps O2, but even that isn't particularly stable, hence why it will readily burn and become CO2 and H2O. Hydrogen peroxide would much rather be... |
What is the sound that hurts my ears when there's only one window down in a car and where does it come from? | It's basically the same thing that happens when you blow over the top of a bottle and it makes a sound. When you "push" on the air inside a container, it will compress and then push back out in a certain amount of time based on how much air is in the container. Basically, the air moving over the edge of the open window... |
Why did WWII bombers always fly in formation? | Formation allows for each bomber's guns to support the others. If a fighter takes on a bomber one-on-one, it's probably likely that the bomber will go down, if the fighter knows what he's doing. If ten fighters approach ten bombers in formation, it's going to be a lot harder to destroy the bombers, because there's goin... |
why is some snow great for packing and fight with, while other snow just falls apart? | The amount of moisture inbetween the snowflakes determines how well the snow packs. Wetter snow makes better snowballs -- drier snow does notThis is why the eskimos have like 100 different words for snow. Because snow is not always just snow, it has many different looks and feels.It needs to be dense and a tad moist to... |
How do people who aren't vacinated effect people who are? | It creates a breeding ground for the disease thus making it able to evolve. If there are no susceptible hosts, the disease will go extinct.Firstly, it's because not everybody can get vaccinated due to reasons outside their control, such as an allergy to the stuff in the vaccine . Secondly, vaccines can lose their effic... |
what is the purpose of having an RPM gauge on the dashboard? | The tachometer is the sensor which measures the rate of revolution of the engine shaft. It is mostly useful for determining if you are in the correct gear given your speed and throttle. Combustion engines have peak power output in a rather narrow range of RPMs, which is why we have transmissions with multiple gears as ... |
The protective qualities of charcoal | It is extremely porous and has a large capacity for adsorption, meaning substances can stick to its surface and be bound up. Its doesnt have as high a capacity as some other materials, but is cheap and can be made with varying pore sizes to suit the substance being targeted. |
Is there any particular reason beer bottles are brown? Or clear? Or green? Or is it purely aesthetic? | Sunlight causes some beer to get "skunky". Amber and green bottles help protect the beer from light and allow it to be stored longer. |
- Why does Technetium not occur naturally? | It does occur naturally. It's created in supernovas . But it's unstable, and even its most stable isotopes have a half-life of "only" 4.2 million years. Which means that, 4.2 million years after the creation of technetium in a supernova, only half will be left, and 4.2 million years later, only half of *that* will be l... |
Why arent any saudi royals on the top billionaire lists? are they not filthy rich from oil? | Those guys are also not particularly transparent. Since Saudi Arabia is an absolute monarchy, the country's budget and state investment funds are also the royal family's own wallet, whereas "conventional" billionaires own far more easily detectable corporate assetsThere are thousands of Saudi royals. Saudi Arabia is si... |
Why don't the media use another term for those extremists who hide behind the Quran? | They are Muslim. When right wing militias do violence in the US they are labeled Christian fundamentalists. When Hindus attack mosques they are labeled Hindu militants. Problem is Islam seems to generate more terrorism than the other religions. Either way -- they are Muslim and killing for Allah. |
How come when a TV station plays reruns of a show they don't play them in order but instead play the same few that repeat every few weeks or so? | Those episode have the highest ratings and attract most viewers, meaning the station can pull in more advertising revenue |
Why do artist still release singles? Especially now that with streaming services, you can buy/listen to individual songs. | Publicity mainly. Big singles generate buzz for artists in the run up to an album release and can pump up salesPublicity, plus the music business hasn’t really caught up to the technology that’s available now, minus the embarassing attempt to make everyone with an apple device own a U2 album.Singles are solely used to ... |
Why do I experience a drop in volume when I yawn? | In most basic terms - yawning blocks the amount of sound vibrations that are required for the transmission of sound. [This] does a better job of breaking it all down. |
If health care plans were canceled because they did not meet new standards of the ACA law (Obamacare), how can the president say that plans can be kept without changing the law? | By fiat accompli, Congress would "own" the problem if they challenge him on not enforcing the law and they 'd prefer not to do that. |
Why do some exclamations/outcries mention religious places and people? | When Swearing first became a widely used thing, the world was, generally, much more religious than it is now. Swearing was and still is used to demonstrate an emotional state that is unusual or more extreme than the usual. Therefore, when these two things combine, you get phrases that use the terms associated with reli... |
Why is India's garbage/river pollution situation so bad? | Actual indian here Our pollution is so bad, because the people in power don't care, and the people who do care can't ever get to power. The indian government is a carefully balanced pile of bribery and corruption built over a foundation of pure apathy and greed. While sure, there are some diligent workers at the grassr... |
Why are the letters on a QWERTY keyboard placed where they are? | It is related to how typewriters used to work. As I understand it, when some keys are pressed too soon after eachother, the typewriter gets stuck, and QWERTY was developed in order to minimise the cases where this would happen[Google exists.] The keys were placed in that order to prevent jams on typewriters from common... |
How does Intel physically link together billions of transistor's to work on computer chips? | As others have said, light and chemicals are used to "flash" the transistor pattern onto the silicon using light and chemicals, but do not think this is necessarily a foolproof process. This is why Intel has several different types of chips for each generation of iX. For example, when manufacturing an i7, something scr... |
What led to the rise and fall of Ringtone Rap? | Maybe let's start with: what is ring tone rap?", 'Probably because it's terrible, immature music and nobody wants to listen to it anymore. That type of music was really just a gimmick, it became somewhat popular for a while, but then it went out of "style". Which is usually the reason for why any music genre dies out N... |
Why do people typically open their mouths when experiencing shock or disbelief? | To take in more information. Mouth gapes open, body hairs stand on end , eyes widen all of which help us gather a ton of information really quickly when we see something incredible. |
What do fraternities and sororities actually do? | They do many things. 1) Set up a structured way for people with similar interests to become friends. 2) Provide student housing. 3) Network with Alumni giving professional contact points for after you graduate. 4) On most campuses they provide community outreach with various volunteer activities such as habitat for hum... |
Why is the 40-yard dash the magical number for gauging a football player's speed (as opposed to some other metric)? | While coaching Ohio State University Buckeyes football team in 1941, Paul Brown emphasized team quickness. One way to calculate this was for him to time his players covering a punt. At the time, the average punt went about 40 yards from the line of scrimmage and had a hang time of about 4.5 seconds. He would then time ... |
Why do black people and white people have distinctly different voices? | The great majority of differences between how people speak is cultural. Grow up without access to a culture and you aren't going to develop that culture's speech patterns. A smaller factor is that the structure of the organs which produce our speech does vary a bit between people with different recent ancestry . Even t... |
How is a fan able to keep a ball floating above it with the ball flying away? | You're referring to Bernoulli's ball. There's not really an ELI5 explanation for it, but I'll give it shot. Bernoullis principle says that if you have two streams of air, which ever stream is moving faster will have a lower pressure. In the case of the fan blowing on the ball, you can think of the air divided into two ... |
Why do lightning strikes leave a branching pattern on whatever they strike? | In the air, lightning initially [branches out all over the place] searching for a path to the ground. Air is normally a bad conductor of electricity, but once the electricity starts flowing the air becomes a plasma that conducts quite well. So all the lightning follows the first path that made a connection. Once it str... |
Why, in virtually every picture of the Earth taken from space, is North shown as being at the top of the picture? | Just by convention. That's what most people are used to seeing. Same reason why when you take a picture, you hold your camera so the top is on top. Nothing's stopping you from holding your camera upside down when you take the picture, or from showing people your upside-down pictures. It's just that by convention, we or... |
Can you explain second and third sounds? | Second sound isn't sound at all. When helium is super cooled , heat is transfered in a wave-like motion rather than the more usual methods. It's called the Second Sound becauase the heat is transfered in a wave-like motion, similar to houw sound propogates through air. Third sound isn't a sound either . It's another wi... |
When an artist/band's "Greatest Hits" or "Best Of" album is released, how does the process take shape? | A Greatest Hits album is common in any record deal. After so many releases, the artist and the label will get together to assemble the track listing and many times, the artist will be required to produce a number of exclusive tracks for the release. All of this will depend on the artist and their dealMy sister works fo... |
Why are multi-billion dollar companies able to file for bankrupcy and why does the government bail them out? | Some companies may be considered 'too big to fail' because so many hundreds of thousands of people fully depend on these companies operating that it would arguably do more harm than good to the greater society to let the company fail as opposed to provide bail-outs to get them back on track. In other words, letting som... |
why do your ears ring after loud noise and have been damaged? | The cochlea in each of your ears is a spiralling organ that contains a bunch of tiny little "hairs." When sound is transmitted from the air into your cochlea, it travels through the cochlea and depresses hairs corresponding to different frequencies. [The hairs further and further in the spiral] correspond to lower-pitc... |
If weed is a depressant, why does my heart start to beat faster whenever I smoke? | > If weed is a depressant That's just it. It's not a depressant. At the high level it's a psychoactive compound - it can cross the blood brain barrier and can act on parts of the brain. Depressants, stimulants, and hallucinogens are all psychoactive. Weed is basically in a category of it's own since it doesn't fit into... |
How do they blur moving things for TV shows, do they have to do it frame-by-frame? | Yes, or some software let you put a marker on the image. Let's say, a finger. Well, a finger is going to be a bunch of beige pixels. So when it moves, the computer only has to track a bunch of beige pixels around, it knows where to censor. It's a bit harder when you have to track something small, or something that chan... |
Why does a battery decrease without being used? | All batteries slowly lose charge over time. This is because all batteries use a chemical reaction to store energy. Over time this reaction breaks down inside the battery. Without getting too deep into the chemistry the reactions in batteries are non-spontaneous, meaning they won't just happen in the world on their own.... |
Would the predator on to Catch a Predator still get arrested if they never ended up showing up? | Likely not since you can't prove they were ever actually going to show up at all. You can't arrest someone for thinking about committing a crime.Yes, because a lot of them send pornography/nude pictures to what they believe to be a minor, which is a felony and a federal offense. They also break the law by engaging in v... |
Why do we still take test and learn the same as how people did in the whole of history when technology has advanced so far? | Learning has advanced a great deal since formal education began. There are some things that have become redundant, and some things may seem useless. For instance, why bother learning that there are 4 quarts in a gallon when I can just look it up? But many people, myself included, would argue that a fundamental understa... |
why do we lose our appetite when we see/hear something unpleasant? | It's an evolutionary thing. What if every time you saw a piece of poop, it made you hungry? You would be much more likely to eat poop. And people who eat poop tend to get diseases and die. So we're programmed to be disgusted by it. It's the same reason why people like unhealthy food. We're biologically programmed to go... |
why does everyone want 60 FPS for games? | You probably know that TV and film usually sit around 24/25/29.97/30 fps. But it's well-known that games need to run at 60 fps in order to achieve the same smoothness. Why is that? Well, when we film something, the video camera exposes the film to light for a certain amount of time. It's probably in the micro- or milli... |
Why do we enjoy watching televisions shows that involve drugs/killing/relationship drama/anything else that we would never want to happen to us in real life? | The same reason we have nightmares. It's emotionally healthy to explore dangerous and upsetting situations in a healthy and safe setting. |
Why can't you remember when you were a baby? | If you don't have storage space, where do you put stuff? The neural structures that store memories and things literally don't exist in a newborn's head. They've got no storage space. They literally don't possess a conscious memory yet. |
Why do we have to eat and urinate throughout the day, but can make it through 8+ hours of sleep just fine? | During sleep, your metabolism slows. Your digestive and renal systems shift into a slow mode so they produce less waste.1. You are not drinking or eating2. Your metabolism slows down so your body can use that energy to repair damages you've done to your body during your time awake. _URL_0_", 'Because during that sleep ... |
What wars are being fought today and why? | 1. Ukraine - Oil and gas infrastructure, naval bases, ethnic tensions 2. Syria - Extraordinarily cruel regime inevitably led to a complex civil war, which has spilled over into Iraq 3. Nigeria - History of tension between Muslim north and Christian south, plus the difficulty of maintaining control over a huge country, ... |
Why do even videos from the 2000's appear to be very old/low quality when we remember viewing them in higher resolution. | You said it, higher resolution. They'd look just fine if you were viewing them in 800x600 or 1024x768, but you're not. You're viewing them in 1920x1080 or higher, stretching the video onto an area several times bigger than intended. |
Why don't we experiment with colonizing new worlds by building on the Moon first before going to Mars? | That was exactly the plan with the [Constellation Program] but then the financial crisis hit and suddenly no-more moon money.The Moon and Mars are two different environments that face different technical challenges. You wouldn't build a house in the desert and expect it to work in the Arctic, and likewise you can't nec... |
What is the difference between watts, volts and amps? Amp hours? | Watts is power. It's how much work you can do in a given amount of time. Work is energy, usually expressed in Joules. Amps is current. It's how much charge is going through in a given amount of time. Voltage is potential. It's how much energy can be released per unit charge. Volts * amps = watts. Amp hours is current *... |
Why do cats like sitting/laying in cardboard boxes so much? | Paper is a remarkably good insulator. In the second world war poor families would literally rap up their children in newspaper to keep them warm. Cats enjoy having warmth on their stomach and lying on paper provides thisI think they like the closed confined feeling they get from being in the box. Makes them feel warm a... |
Why do we sound different to ourselves on camera or audio recording? | Sound reverberates around inside our head through numerous large sinuses before we "hear" it. This distorts what our voices actually sound like. Assuming proper recording tools, what you hear on an audio recording is exactly what you sound like to other people. |
Why do we have to go through US customs in Canada, but not the Canadian customs in the US? | It used to be that you went though US customs in the US, and Canadian customs in Canada. Some smaller airports continue to work this way. But then the US introduced customs pre-clearing, so instead of checking after you've arrived in the USA, the check everything before you get there. |
Why do trees have rings? | Trees grow slower in winter and faster in summer. In winter the wood that is grown slowly is denser and has a darker tintThe tree rings themselves are vascular tissue which transport nutrients and water and such to the plant through xylem and phloem, the two types of plant vascular tissue. these are produced by cambium... |
What causes the blacked out eyesight when people stand up to fast? | [Orthostatic hypotension]. The blood literally drains out of your brain as you stand up, before your heart can adjust to your new posture and up the pressure enough to keep you functioning normally. As a result, you go a bit woozy, see stars, and sometimes even pass out.I assume you're referring to head rush, which can... |
Why are some sports teams historically more successful (NY Yankees) than others (Cleveland Browns)? | It's a vicious circle. Teams that do well earn more money and have higher prestige, so they can attract better talent. |
What causes the jumping feeling in your stomach when you go down a quick hill while driving? | Your innards/gut is used to gravity. It doesn't have the normal sensory nerves that your skin has. Upon traversing a sudden drop/hill, for microseconds you experience a "less than 1g" environment. Your body reacts but bones and muscle react differently than inner squishy, liquidy guts. They probably rise a bit and rath... |
What happend to Apple patent for Multi-finger gestures? | The mobile telecommunications industry is a web of patent holders all licensing each other's patents. Pretty much every software and hardware manufacturer holds a couple patents that are absolutely essential to the experience. Basic stuff, like the concept of nested menus . Essentially everybody in the game has to cros... |
Why doesn't our vomit contain the strong acids in our stomach and react (burn/melt) with things once it leaves our body. | It does. But the acid in our stomach is dilute, it is not like some kind of super acid you see in movies. If you vomit on some metal and leave it there/keep vomiting on it, you will see that it erodes. This is also why people who have bulimia damage their esophagus and teeth. The acid from their vomit is constantly ero... |
Why do grocery stores have paper bags for mushrooms and plastic bags for everything else? | Moisture. Moisture ruins mushrooms. Plastic bags hold the moisture in, while paper bags will absorb the moisture and keep the mushrooms looking fresh. |
What made Ronald Reagan such an amazing president according to the Republicans? | ELI5:We sonny, the gipper came to DC and gave those useless government bureaucrats the old California one two! He broke up unions, slashed taxes on the rich , took a fire ax to business regulations. He ignored those silly gays and their AIDS, he said damn the diplomacy and butted heads with the soviets. He wasn't afrai... |
1000 years frozen in Futurama | If\xa0you're wondering how he eats and breathes, and other science facts, just repeat to yourself "It's just a show, I should really just relax."The cryogenic computers took care of all those calculations. Idk why they set it for a few hours less than 1000 years. Maybe the person who was supposed to use the tube reques... |
What led game designers away from Mac as a viable platform for their content? | The most likely reason is market share. If you have a set amount of resources, do you design for the 95% or the 5%.I think the market share answer people are giving is only half the answer. DirectX is a graphics/sound/etc. library Microsoft developed for Windows, and were able to optimize better than OpenGL. Game devel... |
Why does the right hand rule exist? Why don't the laws of the universe result in a left hand rule instead? | The right hand rule could totally have been the left hand rule. You just need to use different fingers with a different gestures if you think about it. The right hand rule does not define the laws of nature. It is just a way people come up with to visualize the relations of all of those forces and directions of movemen... |
Why are most corporations considered evil? | Most corporations aren't evil and just do useful things like make your bread for your breakfast toast or make wires for your house. Of those that are evil often their evilness can be often put down to either to outright corruption in management ranks, which is just the human condition. And secondarily companies often d... |
I know this is bad but what is karma? (On reddit) | Basically what karma is, is a form of virtual pat on the back or scolding. You post a witty, funny or factual comment or post and users can give you karma if they like it. If you don't add to the discussion, or troll or say something they don't agree with they downvote you. From my experience in reddit, don't expect a ... |
why did Japan attack Pearl Harbor if America was minding its own business | The US wasn't really minding it's own business, and it inevitably was going to start minding its business less. It was supplying arms and finance to the enemy if Japan's allies, it was helping embargo fuel against Japan, and it was unlikely to go very long without entering. Japan actually was able to temporarily crippl... |
What are the key differences between endangered native New Zealand birds and birds from basically every other country that makes them so vulnerable to mammalian predators? | That evolution is exactly what's screwing them over. Not only were there no mammals but a few bats, there are also no snakes, very few poisonous spiders, no lizards that could eat a bird no natural predators whatsoever. Correct me if I'm wrong, folks from other countries, but that's a pretty unique position for birds t... |
Why is 12:00 the beginning of the 12-hour cycle, instead of 1:00? | Think in military time. There are 24 hours in a day. In military time midnight/12am is 0000 time. then from 0 it goes to 1. so in the 12 hour am/pm system the 12 acts as our 0 and is a placemarker telling if we are in the am or pm section of the day. 12:00 AM is the beginning of the first half - am half of the day. 12p... |
if you tell me your name, I forget immediately yet I remember every lyric to 1000 songs on my Ipod? | You have heard those songs 100's of times and the music helps you remember plus the singer is filling in the blanks helping you remember too. Where as a name is just one word with nothing for you to connect it to, to help you remember it. |
What are the differences between strategy and tactics? | Tactics are low level small tasks, and strategy or higher level planning. So in war tactics would be how to maneuver your forces to take possession of a hill, where strategy would be that a specific hill is important to winning the battle/war.Short-term vs. long-term. Tactics are used to overcome an immediate problem, ... |
if atoms don't actually ever touch one another - how can we feel things? | We never 'touch' anything because electrons in the outer shells of atoms repel each other at 10^-8 metres. What you feel when the surface of your finger touches another surface is a repulsion force between the electrons from the atoms that make up your skin and the electrons from the atoms that make up the surface you'... |
Why do humans, even from an extremely young age, have the predilection to dance? | Hearing music and rhythm moves about the fluid responsible for balance in our ear, and even thinking about a beat can induce the same feeling. We bob our heads and dance naturally because moving the head in the opposite direction of the disturbance to equalize our balance gives us a pleasurable feeling and a dopamine r... |
How does rendering a video game at a resolution higher than what my monitor can show make things prettier? | Imagine that you're just drawing something black and white, like text. At low resolution a particular pixel at the edge of the letter is black. But at 4x that resolution, it's a 2x2 square, of which 3 pixels are black, and one is white. These pixels are then averaged to a dark gray, which is what's displayed at the low... |
what makes hybrid animals like the mule sterile, and is there anyway to make a hybrid animal that can reproduce? | Mule is not able to make sperms or eggs on its own, so it is sterile. This is because of difference in number of chromosomes in horse 32 and donkey 31, as they are not of same species. If you crossbreed within species, like in different type of dogs,they would be fertile. Because of the cross between horse and donkey, ... |
What is the Trillion Dollar Coin? | The US Treasury has an account with the Fed. When the Treasury writes a check , that check is cashed with the Fed. The Fed will cash more checks than is in the bank, based on the amount of credit that the government is allowed to carry. We're coming up on that limit shortly, so at some point the Fed will have to tell p... |
Why do we randomly recall part of a dream, weeks or even months after it happened? | I can't provide a full answer but when I was taking a cognitive psychology course we covered state-dependent memory. _URL_1_ The idea is that memory works best when you are in a similar state to when the memory was stored. This is part of the reason why people can become intoxicated, have very few memories of what they... |
Why do some mobile apps require so many seemingly unnecessary or invasive special permissions? | they arent actually invasive, it is the basic requirements for the function of the app. if you have a small free game then it will often say 'there are no special requirements' but an app like tinder where you are connecting to facebook, using the wifi or data connection and also sending and recieving pictures and usin... |
How does a towel get dirty if we're clean when dry ourselves with it. | Even though we have removed dirt from our bodies, bacteria can still reside on our skin, and when we wipe off the water we are also wiping off the existing bacteria onto the towel. There is also airborne bacteria that can get on the towel, and since the towel is wet and sometimes warm, it allows bacteria to grow much f... |
How do people that sell instagram/twitter followers and likes create that many accounts? | Many are accounts that post requests for likes and shares. Then, those posts are deleted and the accounts are sold. It's best to report them for spam. |
Why are the biggest burger chains promoting fish sandwiches right now? | During Lent the only meat Catholics will eat on Friday is fish. Thus up until Easter they will all promote fishIt is Lent. Between now and Easter, many Christians, notably Roman Catholics, do not eat meat on Fridays. So, fish is very popular this time of yearI mean, reasonably, the only explanation is that promoting th... |
How can Google offer such superior service with Google Fiber? | Actually Google is not dumping insane amount of money in the project. The cities selected for the fiber project provides Google subsidizes pricing on permits and somewhat pre-existing fiber capabilities.In Kansas City, an Internet-only package costs $70 a month. A TV and Internet package goes for $120 per month. Google... |
In Games, why are the team colours facing off against each other usually red vs blue? | Because you need two bright, primary colours that can be easily distinguished both against each other and against the environment. In Video games you're unlikely to come across large sections of bright and flat red or bright/deep blues, whereas you will come across a lot of greens and yellows. Red and Blue are highly d... |
Why are some people photogenic? | Cameras have only one lens, this is like looking at an object with only one eye, you will lose a lot of depth perception. Photogenic people have faces that are a lot more "3D" so their faces are not flattened by the camera's lack of depth perception. Back when photos and movies were black and white, it was even more im... |
Why are new technological leaps so expensive? For instance, it can't seriously cost so much more to produce DDR4 memory than it does to produce DDR3. | It's a couple reasons. One is research. New technology requires millions and sometimes billions of dollars of research and development. For the first years of a technology's release, its price is higher to repay these costs, as well as the costs of failed designs that came before it. Another is scale. It takes time to ... |
How does the sand river in Iraq actually work? | It is blocks of ice floating over water down the slope. Sand on top of the ice might make it look like sand, but it isn't sand all the way through. |
What is pi and why does it work? | Pi is the ratio between the circumference of a circle and its diameter. It works because it's a geometric law - if you draw a circle, c/d = pi.Imagine a circle. This circle has a circumference, which is the length of the actual circle and a diameter, which is the length of a straight line from one side of the circle to... |
How do some digital clocks still know the time after being powered off. | It has a small battery inside of it that keeps the clock running. Your computer, phone, etc. maintain time when powered off in the same wayIt has a little battery inside it that runs something called RTC, or real time clock, which basically keeps tracking the time when the device is not powered from the outlet. When yo... |
why do people call Buffalo Wild Wings "BW3" when there are only two W's in the name? | it used to be Buffalo Wild Wings and Weck. Roast Beef on Weck is another traditional Buffalo NY food. But the Weck didn't catch on outside of the Buffalo area, so they stopped serving it and took it out of the name. It is really good though, and if you are ever in Western NY state you should try it. I recommend Charlie... |
Why can't pilots see when a laser hits them? | Lasers spread out the farther they travel. That "tiny dot of light" isn't so tiny after it travels 1000 feet through the air. If it hits the plexiglas cockpit window, it diffuses out even more. The result looks [something like this]. You're right that it only flashes for a split second, but that's all it takes. When pe... |
Why do fiscal years start in April (usually)? Why don't companies just pick Jan like the calendar year? | Depends on where you are. UK fiscal years are based on the old Julian calendar, where the new year started on what is now ~April 5th-6th. Changing it now would mean everyone would have to balance the books over Christmas, which I don't imagine would go over very well. Other countries like Germany and China do line up w... |
why do you go light headed and queasy when seeing a bad cut | This is caused by what is known as the vasovagal response. It's a reaction by the body to certain triggers that causes the heart rate and blood pressure to drop, which in result causes you to feel lightheaded and queasy because the brain doesn't get enough blood. One of the thoughts is that it is an evolutionary mechan... |
Why didn't America start off using the metric system? | It was actually introduced after the USA was founded. France introduced the whole system in 1799, America was founded in 1776. Parts of it have been around for much longer, but the system as whole was not introduced until after we were founded.Side note: It's slightly incorrect to say that the U.S.A. does not use the m... |
How would I find the most downvoted stuff on reddit? | A quick search turned up [this] gem: Karmanaut removing Bad Luck Brian's AMA since it conflicted with the stated rules of the subreddit . There's also the classic [Geraffes are so dumb], but that got an order of magnitude fewer downvotes. Karmanaut's post dethroned [Fucking faggot] as the long standing champion of down... |
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