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Why is it that sometimes when water touches me unexpectedly, it feels painful? | It's simply that you aren't expecting it, and the temperature difference is usually very different to your skin. As soon as you feel this difference, your body jumps and reacts. |
How does 3 phase power work? | There are three "hot" AC power lines, and the voltage on them moves up and down at different times. When the first one is 2/3 of the way through a cycle, the second is 1/3 of the way through a cycle, and the third just starting a cycle. This is depicted in [this graph.] |
How do you use unique rectangles to solve sudoku? | A standard sudoku puzzle has *only one* solution. Unique rectangles let you eliminate possibilities because those would lead to a situation with two solutions, which you know to be impossible. So in a sudoku puzzle, if you pick any four spots that forms a rectangle, those four spots will always have more than two diffe... |
Would it be possible for another country to BUY a country in debt? | The only ways to gain control of a country is through conquest or treaty. In a treaty, you can theoretically place a condition by which the annexing nation pays the remaining debt of the nation being annexed. This would effectively be "buying" a nation, though it is not something that could be done without the debtor n... |
the observance of Halloween in European countries. | In Denmark, we barely celebrate it at all, some stores will do like halloween area and have some halloween stuff like pumpkins and a few people will make pumpkin heads , but that's about it. |
Where in the toilet should I aim to have the quietest pee? | I go for the side of the bowl on the right side. This way the stream is a "glancing blow" of sorts and minimizes noise. Never thought I 'd answer a question like this |
Why do Electric Dryer Cords not just plug in like every other power cord? | It has to do with building codes. Let me explain Dryers and homes can have two different main types of plugs for dryers. A 4-prong and a 3-prong. Old dryers and homes have 3 prong plugs/outlets, new ones have 4-prong plugs/outlets. Obviously, if you mix and match old/new home or dryer it won't work. Now the codes also ... |
what are laser beams & how are they different from light beams? | A laser beam is a beam of light that has some specific properties. A laser beam is monochromatic, meaning it emits a specific wavelength of light . Normally lights emit a fairly wide range of wavelengths. Even a normal beam of red light will emit a range of wavelengths, just mostly wavelengths that fall within the rang... |
if our bodies are around 97 degrees Fahrenheit, then why don't we feel comfortable in 97 degree weather? | Because we're exothermic. We make more heat than we need and have to get rid of the excess. We need a temperature differential to get rid of heat at a comfortable rate. |
why do progressive Estates put their focus and resources on free healthcare and free education and not on free food, free clothing and free shelter? | I'm a little confused by your use of the word Estate, but I assume you mean state. The reason is that most progressive states have already taken care of their citizens\' need for food, clothing, and shelter. People in those countries are either able to buy their own food, clothing, and shelter easily or there are gover... |
How do constellations stay the same in such a violent place like our galaxy? | They don't. But you'll never live long enough to see them change. The stars are moving relative to each other, but it's happening so slowly it's very hard to notice. In the 17th Century, Edmund Halley noticed that the then current position of some stars did not match the ancient Greek recorded position of these stars- ... |
Reddit, please explain like I'm five what string theory is. | Everything in the universe is made of things way, way, smaller than atoms and even electrons called strings. They look like little rubber bands stretching everywhere. [This shows everything from what you can see, like a diamond, to what you can't see, like a string. Number 6 is a string.] |
How does Fusion work? What are it's possibilities as a means for energy in the future? | There's an experimental plant called [ITER], still under construction. The trouble with fusion is that you're basically putting the sun in a bottle, but we're still figuring out how to make the bottle. |
Why are some food allergies much more common than others? | The best answer we have is, "we don't really know". This is still a hot topic of research. Allergic reactions are basically your immune system overreacting to things it deems dangerous. Most of the time when you talk about allergies, those "dangerous" things aren't actually dangerous. One of the current leading hypothe... |
Why only somethings work on touch screens, and others don't, fingers but not fabric? | Most touchscreens work using something called capacitive sensing. Basically, the touchscreen uses a conductor to detect when something is nearby. The human body is also a conductor, and therefore it can interfere with the electrical field of the touchscreen. The screen uses this to detect how a human is interacting wit... |
Could same sex marriage in the United States be legalized nationally, forcing states without SSM currently to perform these marriages? Or would each state have to legalize individually? | It's not really a matter of the federal government legalizing same sex marriage per se, since marriage has traditionally been a state issue. But the federal government does need to unilaterally recognize same sex marriage across the board and when they do the remaining non-SSM states will have few options since now it ... |
How do Young Earth Creationists rationalize radiocarbon dating? | I grew up in a moderately fundamentalist community, so I'll speak from personal experience. From the point of view of a fundamentalist, you are approaching the problem backwards. When you and I look at a problem such as "how old is this item," we look for a method or data point to work from. When a fundamentalist looks... |
What's the difference between Miss USA and Miss America? | It's just two separate competitions, run by competing organizations. It's Coke vs. Pepsi, or IBM vs. Mac, or Jif vs. Skippy -- just two separate companies, each trying to do it best. There is nothing whatsoever official about it. If you wanted to, you could set up a "Ms. Americas" competition and try to get people to b... |
Why are some people "heavy" sleepers, and some "light" sleepers? | Everyone's brain is a little bit different. Sometimes it's the physical structures, sometimes it's the chemicals the brain makes, and how it uses or responds to them. There are at least 2 chemicals that play a big role in being awake versus sleeping, and how we go from one state to another: GABA and histamine. Some peo... |
What is happening biologically and psychologically when someone witnesses something so horrific they throw up? | Stress reaction. Stomach acid, bowel contents, bladder contents -- they all do really, really bad things to you if they end up outside of their designated organs. Waaaay back in the day, if you saw someone getting mauled by a lion, there was a good chance you're next. So your body then proceeds to evacuate those solids... |
Why does it seem to take so long to warm up after being cold for so long. | I hope I'm understanding your question right. Your body's reaction to being cold is to go into a survival mode, moving blood away from the extremities and toward the organs in your core. Your body is willing to sacrifice limbs to stay alive, which is why hands, feet, nose and ears are often the fist things to get frost... |
Do dancers count to 8 for every song? Or in songs that use 3/4 or 6/8 time do they count differently? | Do dancers count to 8 in every song?Yes. Understand they arent counting music, they are counting movements. Sometimes we do "1, e and a 2, 3 and 4, 5, 6, 7 and 8." This is for highly syncopated stuff. Accents and such. Each word represents a movement. Always, always we count to 8 no matter the song.Absolutely not, no. ... |
Why do we still make pennies in the USA if they are barely used and cost more to make then they are worth? | Because the Zinc Industry in America has a powerful lobby and would not allow it .Yes, it does cost more than a penny to make a penny -- but a penny has a very, very long useful life. And, if you'll excuse the phrase, the mint isn't in the business of making money -- they're in the business of making money.[This video]... |
How can satellites be free-falling towards earth all the time and never touch ground? | It's not Earth's velocity, it is the satellite's. The best way I have found to describe it is that the satellite is going so fast in the perpendicular direction of Earth's gravity such that it missed the Earth, and continues missing. |
how come there isn't life that silicon based like carbon | Silicon and Carbon, despite being in the same column on the Periodic Table, have fairly different properties. In particular, silicon does not form long chain molecules as easily or as frequently as does carbon, and those long chains are essential to organic chemistry.Maybe all carbon based life simply ate silicon based... |
What are lobbies in politics - how did they develop, what are they, why do people hate them? | Let's say you are a wombat rancher. You prefer that laws get passed that benefit your business like low taxes on wombat related goods, and regulations that make it difficult for foreign wombat ranchers to sell in your country. You might write your representatives in congress, but you are just one person. Instead, you m... |
Why are MRI machines so loud and differ in the noise made? | Hard to ELI5, but here goes . MRI works by causing the protons in your body to emit a radio signal. This signal is different depending on where in your body it originated. To embed this spatial information in the radio signal, the MRI needs to create a magnetic field that varies with position. To achieve this there are... |
I have often heard the term "pain is subjective". What exactly does this mean, in laymens terms? | Different people feel pain to different degrees. Someone could pinch me and because I'm hypersensitive it would hurt like a cut, but too someone else it wouldn't be too bad. |
Why did Tomorrowland's "failure" at the box office make Disney stop production on Tron 3? | Based on the article, if you want a tl:dr version- Tomorrowland's flop killed Disney's confidence in upcoming big budget movies like Tron 3, especially since Legacy did so-so in the box office. |
Outside of personal life, has Rob Ford been a good mayor (policies, economy, etc.)? | ELI5 isn't for questions on opinions. People who agree with his policy will say he was good, people who disagree will say he was bad. |
Why is the thought of incest repulsive? | Humans are predisposed to passing on their genes and producing strong offspring. Children born of incest, particularly over multiple generations of incest, are prone to genetic faults due to the lack of genetic diversity among their parents/ancestors. Cousins having web-footed babies, for example. It's possible that we... |
Why is bad posture so much more comfortable than good posture? | It isn't. "Good posture" is the practice of using your muscles to hold up your body, rather than leaning against them . The reason people don't like to do this is because it takes muscular control - you're probably thinking "Well, I don't want to do a work out just to stand still" - but what you don't realize is that y... |
The Samsung/Apple patent war and it's implications | Companies have been suing each other as a form of stifling competition since the beginning of well, since a long time ago. Apple is in the news recently because they are doing it a lot. They are exploiting a patent system that allows this kind of environment. > What could this mean for the future of technology? This is... |
Why are there so many languages around the world? | Most human languages seem to be related to each other at some level, and all ~~evolved from a small, local, protolanguage.~~ languages that still exist seem to have evolved from a very small group of protolanguages. . As people move away from each other, their dialect drifts slightly. As groups move further from each o... |
Why are planets spherical and not odd shaped? | Objects are attracted to something's center of gravity. The force of this gravity increases with the size of that something. In asteroids the force of that gravity is too small for it to overcome the forces that hold a rock together, so the rock stays the same shape. For planets this force is on average greater than th... |
Why do some things that smell good don't taste good? | Actually they're not so much connected as they are the same sense. Our noses sense both smell and taste and they respond differently to exactly the same chemicals depending on direction those chemicals are moving. If they are coming in the front of your nose they produce a different response from the same chemicals goi... |
The Naturalist Movement in American Literature | Don't know if you studied the Romantic period before it, but the Naturalist movement is a reaction to that Romantics focused on the beauty of nature and the infinite potential of the individual. Reading Whitman and Emerson will give you the best examples. The writing is highly idealistic and optimistic, and the world i... |
What justification do Jewish people use for not following much of their own ancient law? | *some jewish people. Orthodox jews follow everything in the torah with the exception of things that can only be done when the great temple exists. I think conservative and reform jews believe that the torah is a living document that needs to be changed here and there to remain relevant in modern society, to address how... |
How come we can take long 40°C+ showers and feel great, but hot summer days over 30° feel like crap? | Showers last 15 minutes, try an 8 hour 40-deg shower and it will feel bad too.That's 104°F for US people. It's a core temperature thing.. The shower never heats your core up more than a couple of degrees. Interestingly my wife heats up in her sleep to about the same temperature It's gotten her pushed off the bed a coup... |
Why is whole life insurance considered to be better than term life insurance? | Generally term life insurance is for a fixed period. Like 15 years or whatever. And the premiums are set based on your risk category at that time. However it's going to expire when the term runs out, and no matter what you will have to shop for more insurance after the term. It's definitely got its uses, like if you ha... |
Rain-sensing variable-periodicity windshield wipers - how? | It is a sensor in the windshield. It detects the amount of liquid and adjusts automatically.I work for Mercedes and this question gets asked a lot hahaAn invisible infrared light is traveling inside the windshield glass. It goes from the top down to the bottom, where a sensor measures how much of the light reaches the ... |
Why a nearly empty pen that stops working and then when we tested it still writes in a corner of the paper, but rarely rewrites where we left off? | Friction. The almost empty pen has less ink to press on to the ball, giving it less and less of ink to move in. When you draw a line on the paper you not only leave ink on it, but you also press a tiny imprint into it, this makes the surface less rugged than it was, so when you have a ball with less ink that dries more... |
Why is it that sometimes I'll wake up congested and sneezy even when I'm not sick, and it'll go away as the day goes on? | It's most likely tied to the Circadian rhythms in the body, basically fluctuations in biological functions throughout the day. If you're affected by allergies, your body's lower concentration of cortisol in the morning would cause increased symptoms of the allergies. Cortisol helps regulate histamines, which are a know... |
What happens to batteries in electric vehicles after they can no longer hold a charge? Are they really better for the environment than burning oil? | Many are retasked to store power for homes or even at places like wind power generating facilities. They'll still have about 80% of their total capacity at the time that they're no longer really useful in a car. Otherwise they can be recycled. Most lithium batteries are almost entirely recyclable. Worst case scenario, ... |
Are airlines constantly buying airplanes? | From what I understand, Boeing, Airbus, and other aircraft manufacturers fill orders made by airlines. It's not like buying a car where Boeing has a lot full of new planes and a showroom floor. You see headlines like "Emirates oders 20 new 787s from Boeing." Boeing has a production plant and has a steady supply of orde... |
How does a computer tell us how much battery percentage is left? | They use a method called "Coulomb counting". Imagine you bought a wallet to store your money. You know it's empty. Now you put $100. You know, the wallet holds $100. Then you stopped by a gas station and spent $20. Now, even without looking, you know that there are currently $80 in your wallet. Coulomb counting works s... |
Is there any motive behind politicians speaking about their families? | There is. When politicians talk about their families we build a weak relationship to them. It feels More personal for us . Some people don't see politicians as normal human beings, but they really are. When they talk about their families we get reminded that they are people as well, which is good if you want votes. Nob... |
What is that "feeling" you get in the pit of your stomach? | > "Our gut, AKA the gastrointestinal system, is comprised of the esophagus, stomach, small intestine and colon. It is lined by mucous membranes and wired by a complex of neurons more numerous than the spinal cord. These neurons are called the enteric nervous system, and some scientists think the gut has a mind of it’s ... |
Why are humans required to eat a diet seemingly so much more complex than animals? | In essence our diet isn't that complex and for thousands of years we got by on a much smaller range of foods. The diversity in many different food sources is mostly a luxury in that regard. > there something different between us and most animals who seem perfectly happy to live off a small range of food sources? The ab... |
Why do my cock and balls seem to be acquiring an increasingly healthy tan as I get older, despite their very limited exposure to daylight? | No seriously. Someone smart please answer this. Why is my genital skin darker than most all of my other skin. And darkening as I get older', "The expression of Androgen receptors is greater in melanocytes located in the areolas and genital area. Thus, Androgen stimulation promotes the synthesis of melanin and pigmentat... |
Why are high speed cameras so expensive? | 1) Specialized pieces of equipment tend to cost more no matter what you're buying - smaller volumes = higher costs. Plus, they can sell them for more because companies are willing to pay more if the return on investment is good . 2) You need some decent processing firepower to move that much image data through your pro... |
Why does paper make so much noise when crumpled? | Other materials that are shaped like a semi-rigid sheet will make similar amounts of noise when crumpled: aluminum foil, thin sheets of plastic, etc. Each bend that you make in the sheet causes vibrations in it, and the vibrations are amplified similarly to how the cone of a speaker in your stereo makes loud sounds: th... |
Why are more and more laptops coming with out a dvd drive? | Pretty much the same reason more and more started coming without a floppy drive 15 years ago. Between huge flash drives and fast online storage, it's a dying medium. |
If we were to replace our neurons one by one with exact copies, would we still be "us"? | In a more philosophical sense the dilemma you're describing is known as the [ship of Theseus]. If you're asking if neuron replacement is possible the answer is "hell no" in the foreseeable future. Humans have some 20 billion neurons, each of which connects to thousands of others. Trying to replicate that sort of comple... |
What is it about alcohol that causes some people's faces to turn red and feel warm? | This is a common reaction for people of Asian ancestry. It has to do with lacking an enzyme, alcohol dehydrogenase. It means the person does not metabolize alcohol easily. They get drunk easier. _URL_0_ |
Cooking term: breaking sauce | When making a sauce like hollandaise, the butter and egg yolks can separate, or the egg yolks can scramble and become solid.Any sort of emulsion, or forced mixture between components that don't normally blend like oil/fat and water, is held together usually with a binder like egg yolk. If the oil is introduced too quic... |
Why are pyramid schemes illegal? | > It's not like they're lying to people. That is exactly why they are illegal*. The fact that most \'investors\' will never get any return is not disclosed. Except for -perhaps- State Lotteries, there aren't many situations where people will willingly risk money knowing they can't get it back. *"Illegal" refers to spec... |
Why do different U.S. states have different start dates for back to school? | It can differ even from school district to school district! Education policies are set at a local and state level, not federal. State sets things like number of days/hours of classroom instruction each school year. But actual calendar can be set even more locally. When I grew up, we started the week before Labor Day in... |
How come when you shine a laser the light doesn’t automatically try and spread apart? | Light comes in little packets called photons. These packets can't exactly spread out on their own. They travel in the direction they are emitted in until something like a lense or mirror makes them go a different direction. A laser is set up so that light bounces in a particular direction inside, and this stimulates at... |
Why, in well over 5 decades, has the United States cut out any major overhaul on infrastructure? | This just isn't true. The US has grown insanely in the last 50 years and grew all the infrastructure to go with it. The interstate highway system expanded tremendously. Ports grew to incredible size and scale, public transport popped up and grew in various cities across the country oh and cities! Places like Phoenix, D... |
What is a promissory note and how/why/when would you use one to buy a house? | A promissory note is related to mortgages and is the official document you sign that the lender keeps to prove you owe them the money and agreed to pay it back. |
What do large marine mammals drink? | Many marine mammals have a built-in filtration system that allows them to drink sea water and filter out the salt. In addition, they get a fair amount of their water from the contents of prey that they eat, which is often less salty than the water. |
Is it possible for an unfit, out of shape, overweight, 40 year old male to ever do the Jean-Claude Van Damme split? | Maybe. Suppose it takes 10 years of dedicated training to reach this goal - from my own experience of doing yoga 3 mornings a week for 2 years in my early 40's, I think that to get to such an accomplishment in 10 years would be a best-case scenario. So that means spending your 40's working towards that goal. There are ... |
Why can't popular singers stream a show live on YouTube and profit money with ads and stuff | Too much time and not a lot of money in it, it would be like giving away a free concert honestly. |
How exactly do brethalyzers work? | For the ones which count as evidence in a DUI, there are two mechanisms which measure the alcohol. One is infrared, the other is electrochemical. One of them falls for the liquor-swishing, the other guards against it. Some of hand-held ones are electrochemical and will be duped by mouth alcohol. But those aren't valid ... |
why hasn't any space program accepted astronaut applicants between the ages 20 and 30? why only 35+ | They want extremely experienced people to admit into years and years of training. There's just no way you're ready for what they want out of you at age 20 and even 30 is certainly pushing it. That said Gherman Titov was 25 when he flew a Vostok mission.From the NASA website: > Are there age restrictions? > > There are ... |
When you get a shot, like the flu shot or b12, why do you have to get it in certain areas like the arm? | It depends on what kind of shot you get, but often if you get a shot in the arm it is because it is easiest and least irritating for the patient', "Yes and no. Yes in that certain shots need to go into certain types of tissue. This means some shots need to go into your muscle, some need to go below your skin and actual... |
If artists can draw realistic drawing and paintings, how come there's no good realistic drawings of people from the past? | Most artists nowadays learn about musculature and other superficial human structures. As the knowledge of medicine increased, the level of detail increased. Art is not always "see and copy", it's more like "see, understand, and replicate". This is the reason da Vinci is considered a pioneer is because he studied the hu... |
What's the whole Bill Cosby scandal and does it seem like he's guilty? | Cosby had been accused of drugging and raping women several times, and in 2006 he paid a settlement to prevent a civil suit about it from going to trial. This was reported in the media at the time, but not widely reported, and it did not receive much attention until earlier this year. Comedian Hannibal Buress mentioned... |
Why do americans seem to have a lot of bank accounts across different banks? | I'll explain my reasoning. PG County Credit union savings from when I was a minor and my parents belonged to that credit union. My first account. Baltimore credit union savings and checking through my current employer because it was required for direct deposit of paychecks. Also have an IRA and deferred comp account wi... |
Why are animals physically superior to cats (such as alligators) manage to still be afraid of them? | two reasons: First, animals are afraid of things that are unknown or mysterious, even if the danger might not necessarily be life-threatening. Think about how many human beings are afraid of spiders, or non-venomous snakes, or small dogs? Second, threats aren't all life or death. Sure, that alligator might have been ab... |
Why does your phone (or any flat rectangular object, like a credit card) flip on both its x and y axis, when you flip it from just the bottom? | It's called The intermediate axis theorem. Rotating your phone with its axis perpendicular to its face takes the most energy to spin it, because the corners are far from the axis of rotation. Rotating your phone with its axis perpendicular to the narrow usb end takes the least energy to spin it, because the corners are... |
What happens in a molecular level when wood ages? | A chemical bond is either a "yes" or a "no". It doesn't weaken so much as get converted into some other form of molecule. Wood is mainly made up of long chains of molecules from the "sugar" class of compounds. And different types of wood have different densities of the sugars - oak, for example, has a lot more than sof... |
How do they stop a large gas main fire? | Depends on the intensity of the fire. Generally they shut off the flow of gas further up the system. Letting the remaining fuel burn off, cooling it with water or foam and sealing the well. There are methods to shutting off fires at oil wells which can involve the use of explosives or other methods of capping the well.... |
What is a computer server? | A computer. It's a computer that has a whole lot of storage space and a really sturdy processor. It also runs specific software for specific tasks. An office's file server, for example, would be a totally normal computer except it would have, say, four terabytes of storage. That computer goes on the local network and i... |
What's the relationship between taste and smell? | > Why does losing sense of smell cause reduced taste buds It doesn't. Your taste buds can only tell if something is salty, sour, bitter, sweet, or umami flavor. That's **it**. Those are the only tastes that exist. So a banana, a pear, an apple, a tablespoon of sugar, and a piece of candy all taste the same as far as yo... |
Why are cooling towers shaped the way they are? | _URL_0_ This is probably the best answer you can find. From my knowledge, , it has to do with the pressures of keeping cold air down toward the base, while efficiently evacuating hot air through the topThey are hyperboloids because it’s easier to create structures of this size with this form since it requires less mate... |
Why do Muslims call their God 'Allah' even though they believe in the same God as do Christians and Jews? | Allah is simply the Arabic word for God. Christians Arabs also used the word Allah to refer to the same God"Allah" is just the Arabic word for "God." However, Arabic is a very important language to Islam: the Quran is in Arabic; it's the language of the major figures . So English translations often preserve the Arabic ... |
How was the first language created and what was used for communication before? | **Edit:** If this isn't "ELI5" enough, please ask me to rewrite or explain any part of my answer. I don't mind! :) You would be interested in reading The Unfolding of Language by Guy Deutcher. The book is about how language may have developed - going through the phases of first nouns, then nouns and verbs, then nouns a... |
Why are insects attracted to shiny surfaces/lights? | I have read that nocturnal insects use far away light sources to help them navigate. Consider how some small kids think the moon is following them when they are out at night. This is because it is so far away that it seems to stay in the same place relative to you as you walk in a straight line. If a moth flies past yo... |
What is a 'beer belly'? | It's actually a combination of fat from a poor diet and an inflamed liver. Alcohol causes inflammation of tissues, particularly in the liver. Add in a crappy diet with carb-heavy beer, and the gut takes on a swollen appearance. Just a plain old fat belly won't be as round and swollen looking as a beer belly because a b... |
How have there been so few fatalities due to the storm in the Philippines? | This isn't the first time its happened. When you live out on an island in the pacific where these storms happen regularly, you get used to it. Its kind of like how Florida can regularly get hit by high category Hurricanes with minimal damage, while someone further up the coast gets hit and its virtually ends the world.... |
Why is it so hard to grip things or twist things open right after you wake up? | In order to stop you from injuring yourself when you're dreaming your body paralyses you. When you wake up you're still under the influence of these chemicals which takes a while to get over. Additionally when you sleep you often compress the carpal tunnel . As you wake up, the pressure on the nerve is relieved, but it... |
Why do I laugh when I'm in pain? | Generally, people that do this grew up in an environment where the strong dominate the weak, and only the strong are the ones who's genes are passed down. When in pain, you do not want to appear weak, so you laugh to make look like it's not that big of a problem to you; that you can deal with it. If you, for example, c... |
How does an antenna transmit and receive signal? | /r/hamradio/r/amateurradio/r/askelectronics ^Those folks will LOOOOVE explaining this to you .Edit:formattingantennae do not transmit signals, transmitters transmit signals, antennae are cut at resonant frequency of the transmitted signal, which mean a whole wave must be able to fit on the antenna but in reality, you c... |
why can a fan make a room cooler when the room is a constant temperature? | The room doesn't necessarily get cooler, it just *feels* cooler. Transferring heat form your body to the air works best when the air is moving, even if the air is warm your body can sweat and cool itself from the evaporation.When the fan moves the air, it is transferring heat away from your body and letting it disperse... |
Who is the 'affluenza' teen, and why is everyone pissed about him? | They're up in arms because the court decision at the time effectively said that he is so rich and therefore so out of touch with the concept of responsibility that he could not be held responsible for his actions. Basically that there is a level of "spoiled brat" that legally makes you immune to punishment for function... |
How does thermite work? | Thermite is a mixture of a metal and a metal oxide - a common choice is aluminum and iron oxide. When the thermite is ignited, the aluminum is oxidized and the iron oxide is reduced, leaving aluminum oxide and pure iron. This reaction is exothermic, meaning it releases heat - lots of heat. The temperature can reach 250... |
How come shoes in sizes 7 and 14 are listed as "special sizes" and also so hard to come by? | This is because in most shops a men's size is from 8 to 13, this is based on average sizes Women's sizes go from 5 to 9. That being said, a women's size nine is the exact equivalent of a men's 7, so maybe try that as you can usually get basic shoes in both men's and women's |
Why hasn't Esperanto taken off? | Lots of reasons. 1. Esperanto isn't a functional langauge in it's original form. It turns out, human language has certain universal rules that require layers of complexity that perfect logic doesn't allow. It has since, of course, been reworked into a usable language, but the "simple and consistent" claim doesn't hold ... |
Why do flight fares change all the time instead of having fixed fares like buses and trains? | Trains and busses for public transportation are regulated and subsidized by the government. The city or state will have a transit authority or department of transportation negotiate and partially subsidize a fixed price. Public transportation is subsidized by the government as a public service and to encourage commerce... |
What happens to a file after it has been deleted? | It is removed from the active file directory so you can no longer find it. Then the spot on the hardrive that stores the data is marked as free space. The data is still there for a little bit until you write somethings over itFile systems have some kind of indexes, which lists where each file exists, and where do you h... |
why do catholics worship the virgin Mary? | Common misconception that they "worship" her, she's just held in really high regard as she is believed to have been born without original sin and obviously birthed Jesus, who is an important guyThis is a misconception. She's just treated VERY well. It's a bit like respect for a friend's mother, only that the friend is ... |
What is the "c" character with the little squiggly thing at the bottom for? | It represents a "soft" c, or S sound in French and Portuguese. For example, the French word français is pronounced "frahn-say" whereas without the cedille, francais would be "frahn-kay"In a lot of languages, including English, you can tell whether the letter "c" represents a [k] or an [s] sound by the vowel that comes ... |
How can someone be lost at sea with all of the technology and satellites we have now? | > pick them up on a satellite Satellites don't have any special abilities to "sense" where people are. Most satellites aren't cameras, those that *are* cameras are in use by spying agencies and they cost a trillion dollars. If those lost people were floating around the Indian Ocean spotting them with a spy satellite wo... |
Why can't we drill 1m diameter hole above the location of taiwan kids trapped in a cave instead of diving to try and rescue them ? | Experts are considering it _URL_0_ PS - It’s in Thailand not Taiwan What if that cause the cave to collapse onto the kids trapping them or even killing them. Their safety is more important than getting them out hastily and risk getting them in harm’s way', "Any idea why can't a scuba diver go down there with breathing ... |
With regards to documentation, what is the difference between "format" and "style"? | It's a little context sensitive but I'd say that document format dictates how your document is structured while style dictates what that structuring looks like. For example my format defines paragraphs, headers and hyperlinks. My style defines that paragraphs have a normal font weight, headers have a bold font weight a... |
Why do we get nightmares when we are feverish or sick and fall asleep? | Dreams are not fully understood, and neither are nightmares. Based on empirical findings there are several theories that present themselves. Based on those different theories there are different explanations and answers to your question, but our knowledge in this area and the brain as a whole is surprisingly limited. N... |
why doesn't ice cream freeze into a solid? (it remains softish) | There are two key ingredients/additives in commercial ice cream. These are called **Stabilisers** and **Emulsifiers**. The two used in Ice Cream are called **Guar Gum & Xanthan Gum**. ***Guar Gum*** comes from seeds from the Guar Plant. It is a refined additive which acts like a Thickening Agent/Emulsifier. When used i... |
Would Michael Phelp's 'special' genes make him good at sports other than swimming | No sport puts as much emphasis on upper body strength as the Butterfly, except probably wheelchair racing. His reaction time seems pretty good, and he could probably hit baseballs pretty well. Translating that into a baseball defensive position seems questionable. Maybe golf, though that's much more finesse than raw fo... |
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