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Why head hair continues to grow, while pubic/leg/arm/underarm hair seems to reach a limit growth?
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All hair has a limit on how long they can grow. Most people's hair on their head will generally stop growing when it's waist-length. Different hair have different length because they all have different length of life-cycle. Your eyelash has a life of 7-8 weeks, therefore it will only grow to a very short length before falling out. Hair on your head on the other hand, have a life of approx. 7 years, so those hair can be very long. Genetics can determine exactly how long your hair can grow, and some people's hair might have longer lifespan than others.
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China vs Porcelain vs Ceramic vs Earthenware
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All of these are examples of Ceramics, which covers the entire set of the other items you are asking about. Ceramics are typically any sort of hard shaped material formed at least partly out of Kaolinite Clay. The main differences between the types of ceramics are: * Earthenware, fired at lower temperatures than other types. It is not shiny, and is permeable to water. * Stoneware, shiny types of pottery like toilet bowls, not permeable to water. * Porcelain, which contains a high content of kaolinite. It's heated to the highest temperature resulting in a very hard shiny non-permeable surface. * China, which is a type of soft-paste porcelain that is composed of bone ash, feldspathic material, and kaolinite. These extra ingredients give it a high strength relative to other types of ceramics, allowing for thinner products Other than that it is prepared the same way as Porcelain, and in fact many items referred to as "China" are actually "Porcelain" insteadChina is an informal word for porcelain. Porcelain is a type of "ceramic", a scientific term for a category of materials with a certain set of properties. Earthenware differs from porcelain in that it is water-permeable because it hasn't been fired all the way to vitrification in a kiln.
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What causes muscles to twitch or vibrate randomly and uncontrollably?
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Several things. It could be siezures, but since you are writing about it instead of being rushed to the hospital, that seems unlikely. Sometimes, the brain can randomly misfire and send a pulse to a muscle, but that doesn't happen too often. The third reason is that, when your brain hasn't recieved any messages from a limb for a while, it likes to make sure the limb is still there by sending down a pulse. The best way to combat this is by stretching occasionally.
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Why is thirst instantly relieved as soon as you drink but hunger is delayed for several minutes?
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If you become full on the first bite, you wouldn't eat anymore - drinking a single gulp of water gives you a much higher % of how much you need than a single bite of food. Brain just knows the difference. Plus liquids are absorbed much more quickly than solids, so that's another factor.
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How do they flavor potato chips and other snacks?
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They literally have a lab, where people mix different ingredients, experimenting with flavor combinations. They then find a way to get that mix into a powdery form, and dust the intended chips during production. Artificial flavoring could be anything "food stuffs" as it's called. Stevia, Fructose, sour powder, anything like that', "Each food has a main chemical that gives it its flavor. Some have one dominant chemical, and others have many. That's why some foods taste so natural, such as orange ans most fruits, and others taste fake: it's hard to synthesize a flavor that doesn't have a strong predominant chemical. [This article] covers it pretty well._URL_1_ here is a great video of how flavor labs work', "it's a bit of a science, however, to give more insight, there are a few companies, but IFF is the biggest one. They are responsible and they 'create' these flavors along with many flavors you may not even think about. For example, McDonald's literally has a McDonald's French Fry Flavor they buy from IFF and put into their french fries source - Co-worker audits IFF and I get to hear all about it.
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How to properly jump onto a stunt airbag. Is there any specific way?
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Yes. You want to maximize your surface area. Diving head first will get you killed as the bag will do next to nothing. If you land on your face, it'll suck. So you want to land on your back. I'm not sure if the pros would extend their arms and legs, but I'd try to land like a starfish, with my arms and legs stretched way out. That, in theory, *should* maximize the energy transfer to the airbag.
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How do audio wires work? How does a unit send something through metal wires that comes out of a speaker as a song/voice/etc?
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Ever shaken a large sheet of paper back and forth and listened to the wobbling sound it makes? It's from the air being pushed back and forth. In other words a very primitive speaker. Next, take 2 magnets, in one position, the attract each other, in a different position they repel each other. Now what if we can turn one of those magnets on and off? Such as sending current through an bit of coiled wire, and making an electromagnet. Now we can make the magnets repel or attract with out having to turn the magnet around. Now we've got a very primitive voice coil. If we attach this primitive voice coil to a diaphragm, we can make the voice coil move back and forth, which moves the diaphragm back and forth several hundred - thousand times a second. That movement of the diaphragm moves the air, which transmits those vibrations to our ear, which we hear as sound. Put your fingers on your throat, and making a hummm sound, you'll feel those same vibrations. The more complex the range of vibrations, the more complex the sounds.
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How do some countries have nuclear weapons without nuclear power, but everybody argues that Iran can only get nuclear weapons with nuclear power?
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There's a difference between a nuclear power plant, and a nuclear reactor. Both Israel and North Korea have nuclear reactors, though those do not provide power, and are primarily intended for weapons production and/or research. There are 2 ways to create an atomic bomb. Either you enrich nuclear material until you reach weaponsgrade levels of enrichment, or you build a reactor which can turn your uranium into plutonium. The latter is generally preferred, as plutonium is a much more efficient material for nuclear bombs. The problem with Iran is thus not it's nuclear power reactor , but it's enrichment program. Israel and North Korea don't need enrichment, as their reactors are respectively a heavy water reactor, and a Magnox design. Both can run on natural uranium. Edit: In fact, nuclear power reactors are usually not used for weapons production, as for weapon production you need to irradiate the fuel for relatively short amounts of time, while for power production you kind of want your plant to work as long as possible.
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what if someone got to the moon,and started committing crimes....What could the government do about that?
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Not a lot as long as he stays on the moon, since there's a shortage of police and courts there. If he returns to Earth, he could potentially be prosecuted by the country that launched the spacecraft, his home country, or the the home country of any victims, depending on how those countries feel about extra-territorial jurisdiction.Well, there are space treaties, which basically say that outer space is for everyone, and no one can claim it for their own country. If someone were somehow to establish a moon base and use satellites to engage in illegal activities -- let's say offshore gambling -- the perp would be literally in "no man's land," and any country who could afford to would go get them and prosecute them. This is a little different from what happens now -- people engaging in these activities in countries that don't have extradition treaties. If I open up shop in the Cayman Islands, or certain African countries, and engage in cyber attacks in the U.S., the U.S. can't come to that country and get me because the country where I'm at hasn't agreed to it. For now, we don't have that problem in spaceCommitting a crime requires breaking a law. Please provide the legal code for the moon and describe what laws they would be breaking
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when muscles get stronger they grow. How do our lungs get stronger if you go for a long run?
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Your lungs aren't actually a muscle. They themselves can't get stronger, because they're not the thing providing the power to breathe. You breathe with a muscle called your *diaphragm*. It's a sheet of muscle that separates your chest from your belly. When it contracts, it moves downwards. This increases the pressure in your belly and decreases the pressure in your chest. As the pressure in your chest decreases, air rushes in from your nose/mouth and inflates your lungs, like two little balloons. To breathe out, the diaphragm relaxes, moving back upwards. This increases the pressure in your chest again, squeezing the air out of your lungs back up your windpipe and out your mouth/nose. Your lungs never actually do any work; they only ever "get inflated" and "get deflated". When you go for a long run, you're strengthening your diaphragm.They don't particularly get stronger. You just increase the efficiency of your body. So much so that you can better process's oxygen. When you get fitter, your heart doesn't need to work as hard to pump blood around your body, so that is more efficient. Your muscles get stronger so exercise gets easier, which in turn makes breathing easier as you don't need as much oxygen. Have a look at VO2Max. It's the efficiency of your heart/lungs.
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When companies get called to Capital Hill, to explain a fuck up or price hike, what actually gets accomplished?
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In theory, Congress is having a hearing so they can better understand what is going on, so that they can consider passing a law to improve the situation. In the real world, they are mostly just putting on a show to impress the voters back home.
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The word 'Meta'.
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The term "meta" has also become a slang term recently, as an expression of something in some way referential to it's own contents. For example, a painting of someone painting might be called "meta" or a play about making a playThere are generally 2 uses these days. The original use of Meta meant "above, around, outside, or about" frequently in sciences. Metadata is data about data. For example, your MP3 files have meta-tags which contain data "about" the data in the rest of the file, such as the name of the track, its bitrate, among other things. This is kept separately from the main body of the file, in the case of MP3, this main data is digital audio. The second use, and likely what you're asking about, is meta's use as a slang term. "Dude, that's so meta". And this generally means "above" or "beyond" in the philosophical or practical sense, whatever it was that was initially being talked about. A good example is "meta-game". Such as participating in a web forum about a video game, where the forum is outside the game but may have an impact on what happens within the game itself can be considered participating in the meta-game. Another example possibly more relevant to forums use is meta-discussion. Where the subject of the discussion takes a backseat to discussion about the way the subject is being discussed; or even a discussion about the discussion itself. Another is meta-posting or posting things outside the normal boundaries of a subject in order to derail the conversation.
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Why does different USB cables, connected to the same power source, charge my phone faster or slower?
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The resistance of the cable affects how fast electricity flows through it. Longer cables, and cables with thinner wires have higher resistance. [Here's an article that goes really in depth on the subject.] In a lot of ways, [electricity moves like water]. In this case, it's like hooking up a hose. If you use a longer or thinner hose than usual, you get less water out the other end. Less water can fit through a thin hose at a time; and it takes more energy to move water through a long hose because the same pressure has to move more water.Something not mentioned in the other answers, some cheap and crappy "usb charging cables" only have 2 conductors, so the data lines are unconnected, and those data lines can be important in negotiating charge current. That means the phone is unable to request a faster charge and higher charge voltage , and so the charge rate is limited to 5v500mA. Cheap USB cables are a false economy, as you may also find less conductor in the cheaper ones, and so that adds resistance to the circuit further slowing chargeThe old USB standard says the maximum current a device can pull from a port is 500 mA at 5 volts . However almost all modern phones need much more than that to charge at a reasonable speed, so they request more current through various protocols. These work by communicating with the PC/charger using the two wires in the USB cable that are normally used for data transfer. And here is the problem: since most people only use USB cables for charging, Chinese companies started making cables that lack the data wires. You can check if your cable has them by using it to connect your phone to a PC: if the phone doesn't show up on the PC then the cable is "slow charging only" and not very useful. BTW, cable length does matter but only if the cable is very long .
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Why does my stomach hurt when I take certain pills on an empty stomach?
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the medicine can irritate the inning of your stomach based on how concentrated it is in the cavity. i f you take it with food or water this will dilute the medicine as it dissolves and reacts with the acid in your tummy.
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what is happening to our eyes when we "defocus" our vision on purpose?
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You have small muscles that warp the lens in your eye, to change whether you focus on nearby or distant objects. When you are focusing on a nearby object, distant objects are blurry and out of focus. You usually don't notice, because you aren't paying attention to them. So when you use those muscles to focus your eye to a level appropriate to a nearby object, but there is no such object to capture your attention, everything becomes blurry.The eyes look inwards at all times. Essentially, you are always cross-eyed, but the farther away you focus, the harder it is to tell. So your Eyes always look in a / pattern. If you look at someone looking at their nose, the eyes will point more inward. When you de-focus, the eyes are changing the angle they are looking at.
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Why are there so many toll roads in the USA?
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You can pretty much drive across the US without hitting a toll road, its just that some of the most convenient routes in the north east have toll roads. There are usually alternate routes that avoid tolls, but are much slower. There are also toll roads in Canada around Toronto, like the 407.How else would we get to that boy's hole?
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The process of music recording, mixing, and production and the difference between low quality and high quality recordings.
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Basically, the process goes like this; **Recording** - you set up microphones and instruments and get the raw sound. This tends to be the simple part, although there's a saying in music production that "you can polish a turd as much as you like; it'll still be a turd". Poor playing and songwriting are always going to sound bad. If something has been recorded badly, this can also have a very damaging effect on the overall album quality. There's huge variation in sound you can get from microphone choice and placement, the room you're using and obviously the gear that's being played. Editing is often folded into recording as a general category. Mistakes are silenced out, background noises squashed where possible, etc etc. **Mixing** - the point of mixing is generally to make all the instruments audible and distinct in the "mix". This can involve balancing volume and also panning instruments from one speaker to another, but a large part of this is adjusting the EQ. Basically, sound comes in a range of different frequencies, and most instruments sit at different frequency ranges. The point of EQing is normally to try to get instruments not to overlap too much in terms of frequency. If you have too many instruments sitting in the same range they obscure each other. I believe reviewers frequently refer to this as sounding 'muddy\'. It's hard to pick out instruments distinctly and everything sounds confused. **Mastering** - essentially mastering is the polishing job. It frequently involves applying effects like reverb and compression that, if applied skillfully and sparingly, makes everything sound better. If overdone, of course, it can sound bad. Compression basically means levelling things off to the same max. volume. Metal albums often suffer from over-compression.
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Why is cigar smoke so much more odorous/long lasting compared to cigarette smoke? Aren't they both tobacco?
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Cigar is pure tobacco, when cigarette is chopped up leaves with a lot of other stuff. Also size. If you take just 2 puffs from cigar it will go away just as fast as cigarette. But if you spend 30min chain smoking cigarettes it be pretty long lasting.
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What is happening inside my brain when a song is stuck in my head? and how do I MAKE IT GO AWAY??
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Getting music stuck in your head is an emergent reaction/behavior of the evolution of our auditory cortex. Human brains have evolved to excel at certain things: learned behavior, mimicry, social abstractions, etc. The catchy songs you get "stuck" in your head are due to a *side effect* of a few of the various amazing things your brain has evolved to do. An analogy is the question "why do leaves get stuck in rain gutters?" Rain gutters happen to catch leaves, but it's not why they were put there. Usually rain gutters don't get clogged, the leaves just get washed out when it rains, but occasionally a clump will get stuck and need to be dislodged. It's a side-effect of the construction of the gutters; they are just good at catching things that fall from the sky.it's called an acoustic feedback loop, or something similar. we're not entirely sure of the why. to fix it, try to think of another stupidly catchy song, and sing that in your head. works for me.
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How is it possible for 2 quarks to cause the universe to collapse?
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There are two types of matter particles, hadrons and leptons. Leptons are themselves fundamental they can't be subdivided. Hadrons are not fundamental. They are made up of three quarks, bound together by the strong nuclear force. Quarks are fundamental. I have no idea how 2 quarks could cause the universe to collapse, though.
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How can corn go through your digestive system and come out whole on the other side?
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It doesn't. Only the outer shell does. The "skin" on a corn kernel is made of cellulose, which cannot be digested by humans. The inside is made of starches and proteins, and they are properly broken down. So, you're not actually seeing whole kernels on "the other side", you're just seeing the shells.
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Can someone ELI5 what humidity is?
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Humidity is the amount of water in the air. Your body uses sweat to cool off. The sweat evaporates into the air, taking heat away with it. When there's a lot of water already in the air , it's harder for sweat to evaporate off your skin. So the same temperature can feel a lot worse if the humidity is high.
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How are different types of cancer (ex. skin, brain, breast cancers) different/similar to one another? If you cured one type could that same solution cure another?
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The short answer to the second part of your question is no. There might be similar treatment/cures for similar cancers, but YOUR left thumb tumor is not necessarily the same as the other guy's left thumb tumor. There's no universal cure since we're all unique snowflakes.
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DNA Transcription and the roles of mRNA, rRNA, and tRNA
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So in the nucleus of all our cells, we have strands of DNA, which provides a code for the creation of proteins out of little building blocks called amino acids. There has to be a method for the code in the DNA to be interpreted to turn into proteins. This is where we have mRNA , tRNA , and rRNA . mRNA literally performs the job of the "messenger". A little "computer" if you will, called RNA polymerase, basically "reads" the DNA code and interprets it , making a strand of mRNA . This mRNA moves out of the nucleus and goes toward a ribosome, which is the construction plant for making proteins. The ribosome is made out of rRNA. Now the ribosome is the construction plant, but it cannot fetch the materials by itself. So when mRNA comes over and gives the ribosome instructions on how to make a protein, tRNA "fetch" the building blocks needed to build it . The tRNA has a structure such that it ends up attracting the amino acids , and it carries the amino acids to the ribosome. The ribosome then takes these building blocks, and joins them together to make proteins_URL_0_ There! This is how I learned it in school :)
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What is a "choke" in electronics
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A choke is an inductor, which at its most basic is a coil of copper wire. It has the effect of limiting high frequency from passing through it. The limiting is based on the Henry rating . It is seen in crossovers to send lower frequencies to the woofer and block the high frequencies from going to the woofer.In a power supply section, the choke will take a sinusoidal power wave and smooth it out. When the power sinus wave is at maximum, all the power goes through. When it hits minimum no power goes through. In between, the choke will release stored energy to partially fill in the falling power output. It helps to convert AC to a smooth DC, especially in vacuum tube amps, which run at high voltages. It is usually placed directly after the rectifier, or after a capacitor that follows the rectifier.
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in the shell sort algorithm, why are the numbers 1,4,10,23,57,132,301,701,1750 used? They seem to be ambiguous and are really confusing me...
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Shell sort partitions the data. The exact partition is not that important, but the properties of the partition do affect the runtime. "Gonnet and Baeza-Yates observed that Shellsort makes the fewest comparisons on average when the ratios of successive gaps are roughly equal to 2.2." You need to have some numbers to do the partition, so those numbers are one set that is known to work well, but you can change them and it will still work. _URL_0_
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What are the rules/gameplay of Craps?
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1. New player rolls two dice. The sum of their two dice is taken. 2. If the result is a 7 or 11, the player wins immediately. If it's a 2, 3, or 12 the player loses immediately. 3. For all other rolls the player establishes a "point" and rolls again. 4. From this point forward the player continues rolling until they roll their point number again or roll a 7 . In addition to the main game, there are a large number of side bets that can be made on outcome of the next roll of the dice.
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Why does 'Latin' mean Hispanic?
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Likewise, Hispanic means you're from Hispania, or Spain. It doesn't really make sense to call someone from say, Venezula an Hispanic, even if they speak Spanish. That's like saying someone from Minnesota is English. Regardless, Hispanic is still used that way.
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Why do East Africans have Caucasian features?
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East Africans, especially around the Horn, have significant amounts of Eurasian ancestry from back-migration into Africa thousands of years ago. This ancestry is also present in a lesser degree all the way down East Africa, and is least present in West Africa.
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How to write a symphony?
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The basic structure of a symphony is that it has four movements. The first movement is typically in sonata form, which is a pretty highly structured way of building a piece of music based on a few musical ideas. It's usually quite fast. I can try to explain Sonata Form like you're five if you really want The second movement is typically a slow movement. It doesn't have a particular structure, but is likely to be more reflective in mood. The third movement is traditionally a dance - a minuet and trio. This is sort of a pre-cursor to a waltz, and is in three time, and quite fast. You have the "minuet" section, then the "trio" section which is a change in tune/mood , and then a repeat of the "minuet" section again. The fourth movement is fast again. It can be a rondo, which is a structure with a tune that you keep coming back to, then a bit more music, then the original tune again, and then more music etc. As well as knowing the basic structure of a symphony you 'd also need to be familiar with the instruments in the orchestra, what you can do with them , and what sounds good with what . Finally you would also need to know about harmony, as in what notes sound good together, and which ones don't. Different composers have done different things with symphonies, but generally it's a good idea to know what the Classical rules are first so that you can break them effectively. :)
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How come Britain is on the same latitude as Canada but comparatively so much warmer?
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The [gulf stream] is an ocean current that carries warm water up from the tropics and to Great Britain, among other places. [You can read more on the gulf stream here]Canada is a huge country. I live in the southernmost part and our weather is definitely warmer than most of the UK. A/C is a necessity in the summer. Winters are quite mild. In the UK, It is more temperate though.It's only warmer in the winter When all the Brits were complaining about the 25 degree temperatures it was 40 where I live in Canada. Vancouver is the same way, it's because of the water like some other people were saying.I just want some people to know that I live in Canada, and it pretty much NEVER snows where I am from. So not all of Canada is cold just trying to clear that up
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Why is it considered respectful to take your hat off in some situations?
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Wearing a hat can obscure your face which is rude when greeting people and its normally considered outdoor wear so wearing it inside can be rude and wearing at at the dinner table can be very rude like leaving a coat on, it implies you are not planning on staying very longIn medieval Europe, knights would take off their helmet as a sign of respect and trust, showing that they dare be vulnerable in your presense. They would also take their helmet off when entering a home to show they were not a threat. These courtesies continued on with hats, eventually saluting and tipping your hat became almost synonymous. Hats would be taken off in the presense of a lady or when entering a building .
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Wine and food pairings.
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Keeping it simple: - light wine for light food, strong and heavy wine for hearty meals - the sweeter the food, the sweeter the wine In practice, white wines go well with soup, risotto, fish, asparagus, and other "white" dishes, while dark meat, hearty cheese and anything with dark gravy should be matched with red wine. For pasta, you can experiment, but red wines are usually preferable. Some people equal white wine with vegetables and red with meat, but all of these are just rules of thumb. I 've had roast beef with a lovely Riesling -- can be an eye-opening experience, can be a total disaster. The important thing is what appeals to YOU. Lots of self-proclaimed connoisseurs don't really know and just make stuff up based on their limited experience. Just like I'm doing right now. EDIT: Avoid combining any wine with *extremely* spicy or acidic food as the wine will get a metallic taste. Use red wine with lots of tannins for very heavy, fatty dishes -- tannins cleanse the palate so you will actually taste the meat better.Most important thing to note is that there are no rules! If you like the way a particular grape tastes, drink it! I've done Syrah with Tuna and Sauvignon Blanc with Rib Eye and it was just fine. Find whatever works for YOU
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(for my son): why does keeping food cold make it last longer?
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Basically, bacteria don't do their decomposition thing as well when it's so cold. Not to mention, all the water is trapped in ice if you completely freeze it.
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Why are fraternities/sororities named with greek letters?
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This particular story may be apocryphal but they were predated by Latin letter organizations. One guy was denied entry into one so he started a Greek letter organization. The Greek letters are initialisms of their mottos i.e. Phi Beta Kappa = Philosophia Bios Kybernethes which is "Philosophy is the guide to life." They are not really for partying but are meant to form lasting connections within a field of study for future networking. They also allow for expanded discussions on subjects from class that the professor didn't fully cover.
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How is a nation's economy affected when its biggest export is an illegal good, a la cocaine via Pablo Escobar?
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My understanding is that the value of the dollar is dependant on the number of dollars in circulation that represent the effective total 'worth' of a country. By printing money, more dollars represent the same amount of 'worth', meaning that each dollar is effectively worth less and less, and this is how countries printing money destroys the value of their dollar.In the context of Pablo Escobar giving money to the poor, I'd think it would function effectively the same way that any export or tourism business that brings foreign currency into a country. Pablo would export Cocaine produced in his country, and then distribute the wealth that came in from foreign nations, effectively giving people more money to spend and more active circulation of wealth in the economy . Tl;dr Large scale successful exports which bring wealth into the country would positively stimulate the economy.
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Why does our tongue have a "life of its own"
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If it moves out of your control you might have a parasite that latches into your tongue and slowly dissolves it. Eventually it complely replaces your tongue. It's more common in fish. [the tongue-eating louse], is a parasitic isopod of the family Cymothoidae. This parasite enters fish through the gills, and then attaches itself to the fish's tongue. You might be experiencing a hemispheric problem with your brain as well. Where the communication between the halves of the brain are not going correctly and so you seem to lose control of body parts. A version of [alien hand syndrome.] Essentially not having control of what you should have is a bad thing and you should go to the doctor. Edit: added links
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Why do video games have load screen when simple 32GB games that people adore rarely did?
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Because modern games have models, meshes, textures, particle effects, sound effects, shaders, and a million other things that are part of a data density in some cases exponentially higher than that of older, more simple games. That data can't just magically move from storage to RAM. It has to be processed. That takes time, especially with optical media like CDs and Blu-Rays that have to physically seek locations on a disc. Many game developers attempt to get around this by using continuous data chunk streaming , but a lot of them are content simply segmenting the experience to ensure smoothness and performance at the expense of a less seamless play experience.
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Why are some people affected so strongly by certain sounds, such as squeaking Styrofoam?
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There is a condition called [Misophonia] that causes extreme negative responses in response to certain sounds. Mouth smacking noises drive my husband pretty nuts; for others it could be the proverbial chalkboard or styrofoam or whatever. It's a neurological condition, and as such, is about as mysterious as the rest of the brain.
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Why can sites like 9GAG take/use my content without any credit to me and without me posting it myself?
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Because you haven't sued them. It's not allowed, but what are you going to do about it? You could start with filing a DMCA take-down notice, and perhaps that would work quickly and cheaply. Otherwise you would have to hire lawyers, sue them, pay court fees, and see where it goes. Is your photo worth a few thousand dollars and up? Cute dog, though!
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Why are diseases such as chickenpox deadly to adults, but practically harmless to children?
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You seem to have your facts wrong. Chickenpox is not deadly to adults. Mumps poses a great risk to post-pubertal males, because it can render them sterile once the testes have fully developed. However, it won't kill them. Rubella poses a great risk in pregnancy, as it causes birth defects. Measles is dangerous to everyone, but moreso to children.
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Why aren't there any successful third party candidates in major United States Elections?
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First Past the Post voting, which is the system we have, encourages strategic voting, which discourages diversity. Basically if a simple plurality wins, then everyone is encouraged to pool together and vote together, and it always devolves into a 2 party system, even in mathematical models. CGP Grey has some really good videos on this. Basically everyone chooses the lesser of two evils until it's just two parties fighting for the few swing people in between.
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what do motion detectors actually detect?
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There's a few types of motion detector, but the most common is the Passive Infra-Red sensor . They spot sudden changes in the amount of infrared radiation in front of it - if a person suddenly appears in front of it, then things will suddenly get warmer, and that'll trigger the sensor.
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Why causes long wait times in the ER? What can be done to shorten wait times? Is this bad for patients?
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It's called triage. As each person arrives they are assessed and then put into the queue. Just because they arrived last doesn't mean they get seen last. If they're the next worst off person they'll go in next. A few years ago I was in an ER here in Australia. A guy was yelling at a nurse because he'd been there for hours and was in pain. They told him that since he'd come in there'd been a number of other people arrive with heart attacks and even a few stabbings and since he wasn't going to die from either a bad sprain or a broken bone he'd just have to wait. He looked at me pretty pissed off because I'd been seen right away and then put back into the ER for observation since there were no beds available. I'd been bitten by a spider and reacted so too bad for him.
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Why are the letter arrangements on keyboards are designed like that?
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Has to do with type writers. They are arranged strategically to avoid as often as possible having to press two keys that are next to each other to avoid jamming. Also for efficiency of motion, though some people prefer another layout called dvorak which is actually much more efficient"The type bars connecting the key and the letter plate hung in a cycle beneath the paper. If a user quickly typed a succession of letters whose type bars were near each other, the delicate machinery would get jammed. So, it is said, Sholes redesigned the arrangement to separate the most\xa0common sequences of letters\xa0like “th” or “he”. In theory then, the QWERTY system should maximize the separation of common letter pairings." After Remington started producing typewriters as well, another version of the keyboard was introduced, but was not received well. Also, the theory that key arrangements had anything to do with the mechanical capabilities of the typewriters was later debunked. However, it was already the learned norm and has simply never changed since then. Source: _URL_0_
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Science models. What program or software do they use to "run" climate and other science models?
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Models are usually run on computing clusters with a large amount of memory and CPU power. It's often a custom program, written by research meteorologists and programmers that they work with.
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How can life start from non-organic matter? You mean we came from tiny non-living particles in the big-bang?
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real answer: at this time, we dont really know, we only have speculative theories.Imagine you have a chemistry set with an infinite number of chemicals/elements and any tools you need to combine them any way you can. Now imagine that you have an infinite amount of time to create, test, and learn about new formulas and combinations of said elements. After such a long time, you're bound to create something unique, like life. Basically, no matter how miniscule the possibility of creating life is, the proper variables will eventually fall into place for such and such to be created.
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What is 'Old Style' and 'New Style' dates
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The Gregorian calendar we use today wasn't adopted by all European countries at the same time. Britain and its territories didn't adopt it until the 18th century, for instance. Russia didn't until the 20th. This means that there are a bunch of historical events that took place on a given day, but were 12 days later according to the calendar we use today. To take another example, George Washington's birthday happened before the adoption of the calendar reforms, so is often cited in both old and new styles. It's even more annoying for British events, because before the reform, they reckoned the new year as starting on March 25, so you'll sometimes see old and new style dates that are in different years. Again, George Washington, who was either born in 1731 or 1732, depending on which calendar you use.Let's see _URL_0_ > The battle took place on 1 July 1690 in the "old style" calendar. This was equivalent to 11 July in the "new style" calendar, although today its commemoration is held on 12 July,[1] on which the decisive Battle of Aughrim was fought a year later. Ah, so the difference between Julian and Gregorian calendar systems. The short version is that the Julian calendar was buggy, and was slowly drifting. The calendar year wasn't staying in sync with the seasons. The Catholics rejiggered things somewhat, mostly changing the number of leap years. The resulting calendar better reflected what the Earth was actually doing, but it took a while to receive widespread adoption.
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With the earth running out of drinking water, and over 70% of the earths body being covered in sea water. Why can’t we just convert sea water to drinking water?
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Short answer: we can. Long answer: it's expensive in terms of both money and energy. There are a few methods, but the ones I'm familiar with boil down to either a filter or boiling the water and condensing the steam. The boiling method requires a huge amount of energy to do on a large scale. The filter method is good, except that the materials tend to be very expensive.Desalination is an extensive process, but, some countries do already We can and do, but it’s expensive. However, necessity being the mother of invention, the cost will go down eventually
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How are rocks older than each other?
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Rocks come in 3 types: Igneous Rock: Formed out of lava. Sedimentary rock: Formed out of stuff on the Earth's surface. Metamorphic rock: One of the other two types, whose structure was changed by heat and pressure. Rocks are dated from when they formed. So you could have a sample of basalt that formed billions of years ago when the earth was cooling, and another that formed last Tuesday after a volcano erupted. You can have a sedimentary rock that formed out of mud on the bottom of the lake 100 million years ago, under rock formed from 80 million year old mud, under rock formed from 60 million year old mud. If you have 100 million year old limestone, and subjected it to heat and pressure 50 million years ago, you'd have 50 million year old marble.the easy answer: they are talking about when the rock *solidified*. I was like you, I thought since all of the silicon matter has been on earth, it should have that age, but for the most part the matter has been liquified . When they harden, that is what the age is talking about. For most rocks, we can't "carbon date" or do anything similar, so we rely on things like Index Fossils! . Index fossils are little tiny fossils that we use to relatively date layers. If we know little fossil X is 365MYA but not 364MYA, then we know this rock that has these little fossils is from 365MYA or older! aah science. let me know if i can help you out in any other way. Just graduated with my degree so its freshRocks are one of three types, the three types are made form different ways. Volcanoes make one type of rock, each time they blast out stuff new rocks are formed.
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If I am charging my laptop at the same time I am using it to charge my phone (via USB) should the charge on the laptop remain steady?
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No. The laptop takes a larger charge than the phone so more juice is going in to the battery than is coming out into the phone.
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How and why did “male pattern baldness” come about?
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We have 23 pairs of chromosomes . 23 come from your mother, 23 come from your father. While what is on each chromosome in a pair may have a different value, the members of the pair correspond to each other. So if eye color is on 12, your mother's eyes are on one of the #12 pair and your father's eyes are on the other of the #12 pair. Most of male pattern baldness comes as a sex-linked trait. Sex linked traits are traits on the 23rd pair of chromosomes where women have an XX and men have an X and then a half-X, we write it as XY, But it's like one of them is half-missing. Any trait that would normally appear on that "missing" half X means men only have that trait from their mother, and do not have a corresponding trait from their father. Whereas women get the trait from both parents, which can prevent the expression of the recessive gene. There are also factors that come from epigenetics . as far as a "why," it's hard to say, but generally, if a trait is something that isn't preventing a person from having children, it will get passed on and make its way into a population over time.OP, is your question more about 'evolutionarily, what is the point of male pattern baldness?' Because no one really seems to be answering that question.
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Why does water taste sweet when you first wake up?
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The same thing happens to me: I absolutely cannot stand water in the morning, to the point that it makes me gag. Nobody in my family has this and whenever I mention it they look at me as if I was off my rocker. Problem is, I can't actually describe the taste, because nothing I know of tastes like it. It's definitely not sweet, though.
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Why's there still a "share" button for internet porn videos despite there being zero demand for it?
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Three possibilities: 1) Someone out there actually uses the porn sharing function, so websites continue to use it. 2) Its a default option in the web video program that porn sites use, and removing it would cause some issues with the playback. 3) Web developers have a weird sense of humor, and have programmed it in the hopes that people click it on accidentRelevant answer from the pornhub team: _URL_0_ Apparently - at least on pornhub - the share buttons see a significant amount of useIt is better to have it and not need it, than need it and not have itIn a PornHub AMA, someone asked this very question, and the response was that quite a few people actually do click on it. Many more then you might suspectThose buttons generate data by simply being loaded onto the webpage. Lets take facebook for example: If you are logged into facebook or log in until the cookie expires facebook will know which movie you saw even if you havent shared it.Web developer here. It's because most clients want share buttons regardless of how useful they are in context to the content. I guess it's due to them thinking it's hip and important because they see it everywhere else.If it doesn't stop their users from coming back I don't see why they would spend money to fix this "issue"Can you honestly not imagine a group of people who would share porn links. it could be young people joking around or anonymous communities set up to find and share good porn sources some people need to expand their horizons. not everything in the world is designed for you and your facebook friends/family
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Why does tilt-shift make everything look like toys/models?
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I'm assuming you mean the "tilt-shift effect". Basically, because it mimics how we see miniature models. There are 3 things the photos have: 1. The photo is taken from a higher vantage point . 2. A shallow depth-of-field, mimicking our natural DOP when viewing something close up. 3. Increased saturation, as miniature models usually have vibrant colors to make them look playful.When you look at something close up, your eyes focus in the way that allows you to see them close up. That sounds obvious enough, but what this does is create a characteristic look to things that is almost something you don't think about, but it's definitely there. The main thing with it is down to how the nearer parts of the view and the more distant parts are very blurry, and only a small amount of the middle of the view is sharp. If you get down up close to something and look at it, this is how you see it, so when you see that effect on something else your brain tells you that you're up close to something very small. As you've noticed, it's quite a powerful effect.
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If the music industry wants to discourage piracy,why do they release songs/albums digitally?
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Because people want digital copies of their music. The music industry tried to fight digital downloads for a while, but ultimately there's too much money to be made from giving your customers what they want.
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Why do we need water to survive? What happens on a microscopic/cellular(?) level when we're dehydrated?
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> Why do we need water to survive? Humans need water for circulation, respiration, and converting food to energy. After oxygen, water is the body's most important nutrient. Your body loses water constantly through sweat, urine, and even breathing. You must replace the water your body loses for your organs to continue to work properly. > What happens on a microscopic/cellular level when we're dehydrated? By the time you feel thirsty your body is already dehydrated; our thirst mechanism lags behind our actual level of hydration. Research shows that as little as 1 percent dehydration negatively affects your mood, attention, memory and motor coordination. Data in humans is lacking and contradictory, but it appears that brain tissue fluid decreases with dehydration, thus reducing brain volume and temporarily affecting cell function. As you 'lose' body water without replacing it, your blood becomes more concentrated and, at a point, this triggers your kidneys to retain water. The result: you urinate less. The thicker and more concentrated your blood becomes, the harder it is for your cardiovascular system to compensate by increasing heart rate to maintain blood pressure. When your dehydrated body is 'pushed' – such as when exercising or faced with heat stress – the risk of exhaustion or collapse increases. This can cause you to faint, for instance, when you stand up too quickly. Less water also hampers the body’s attempts at regulating temperature, which can cause hyperthermia . At a cellular level, 'shrinkage' occurs as water is effectively borrowed to maintain other stores, such as the blood. The brain senses this and triggers an increased sensation of thirst.
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Why are the Japanese not having children?
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So it's a pretty common phenomenon that [as wealth rises fertility rates fall]. Lot's of rich countries have low fertility rates in the same neighborhood as Japan. The overarching theory behind this relationship between wealth and fertility is that richer countries have more educated women with more economic opportunity and that in especially poor families children are still seen as an economic investment.Tricky answer because nobody knows. The crux seems to be that modern Japanese men are not interested in relationships. I have seen everything from internet culture to estrogenic compounds in their food blamed, but really nobody knows for sure.There are multiple explanations, which have been pointed out by other redditors, but I'd like to point out the economic factor. Japan's economy hasn't been great, wages have stagnated, and people are working more. Many people I personally know have started to get married, but they feel too financially limited due to pay vs. cost of living balance and have no plans to have kids . The two couples I know who have kids live with their parents, so at least they don't have to pay rent.
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Explain what he means when Wittgenstein says "if suicide is allowed, everything is allowed."
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Truth is, that paragraph gets quoted a *lot* more than it deserves. It wasn't a fully developed idea that Wittgenstein was expressing; it was literally just a thought he jotted down in one of his notebooks but which he never really fleshed out. The basic idea he was getting at was that suicide is the purest expression of will. It affects no one but the self, thus no ethical system can prohibit it without permitting the prohibition of *anything.* You can't say "suicide is forbidden because X," because there's no X that can be put into that blank. But as I said, this was a half-baked idea. Wittgenstein never went any further with it, and it's not hard to guess why. Suicide is *not* an act in isolation, for no man is independent of all others. So the premise that suicide is purely an expression of the will upon the self is bogus, meaning everything that follows is equally bogus.
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Why is it legal to fire missiles against uncertain targets with a drone?
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This doesn't seem like a very ELI5 kind of question. There's no simple way to explain an answer to really any of your questions, and you'd be even less likely to get an unbiased one. I mean, look at the comments so far.
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How does compressing a video file work?
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The most common type of compression is lossy compression. Think of a video file as a series of jpeg files, which is a type of lossy compression for still images. When you want to compress a still image using JPEG compression, the computer is looking for parts of the image that look similar to each other and group them together. Take this image for example: _URL_0_ This is uncompressed. If we want to make the file size smaller, we can group together parts of the image that look similar to each other and throw out unnecessary information: _URL_2_ As you can see in the second image, the leaves in the background are pretty blurry, but the image is still usable. If we go too far, we start to get ugly compression artifacts and blockyness: _URL_1_ In regards to video compression, it works the same way, except instead of compressing individual image files, we're compressing the frames of the video.
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How is vodka made?
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Depends on the type of vodka. Generally you take a lot of wheat or potato, some sugar, water, and yeast and let it ferment together. Then you heat the hell out of it and it evaporates and goes through a series of condensers.
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When earthquake / tsunami hits a region, how are inmates / patients handled in prisons / mental institutions?
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Involuntary commitment facilities should have disaster preparedness plans already in place, so it's not like they'll just be winging it. There are two kinds of natural disasters, relative to your question: sudden and unpredictable ones, and ones you can see coming. If it's something you can see coming , someone with the relevant authority will make a risk assessment, and if necessary, conduct an orderly evacuation of the facility according to the disaster plan, until such time as the inmates can be moved back in. If it's not something you can see coming , there will still be a plan in a three-ring binder on somebody's shelf, but it will go roughly like this: * Ahh! What's going on! Freak out!* As soon as the immediate event has passed , the facility staff will respond.* If the facility has survived relatively intact or with only minor damage, they'll probably just cope as is, leaving the detainees where they are.* If the facility is damaged enough to be unsafe, to pose an escape risk, et cetera, but the staff are still able to do their jobs, they will first work to assert control and then, again, conduct an orderly evacuation.* If the facility is heavily damaged, staff are injured or dead, et cetera, then whoever's able to is most likely going to report the situation to higher authority , do whatever they can to protect and secure the detainees, and wait for help to arrive. It's basically common sense stuff, based on priorities of safety and continued performance of the facility's primary function.
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What’s the difference between Suntan lotion and Sunscreen lotion
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Old "suntan" lotions - most of which don't call themselves that anymore - are sunscreens with a lower SPF . The idea being that they would keep you from burning as quickly, whilst still allowing you to tan relatively naturally. They don't provide enough protection, however, to keep one from burning completely and should not be confused with higher SPF sunscreens
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How do we build stamina over a period of time of doing something like playing a sport or running? What is going on "behind the scene"?
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The answer by /u/thedylanackerman of "muscular efficiency" is partially correct. While participating in endurance training your muscles will in fact become stronger, but that is only a small part of the story . The larger part, your muscle fibers get better at using Oxygen . This increased ability to use Oxygen is what allows our muscles to get \'better stamina\' this process is a bit different for other performance variables, but that is the ELI5. Source: Strength coach/Exercise ScientistThe muscles needed for an regular activity grow stronger, having stronger muscles they become more energy efficient. So the same exercise repeated becomes a lesser struggle for the muscle .
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What engineering/design feature prevents every car from allowing air to flow from the front defrosters and forward(face) vents at the same time?
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Pretty much a shared duct between the front vents and the defroster, and a flap that redirects air depending on its' angle. In some cars, there are options to enable all three, but for a lot of people this isn't desirable; for some dry hot air in the face causes drowsiness and dry eyes, so even if my windows aren't foggy in the winter, I'll err for defroster or defroster/feet rather than any use of the face vents.
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What does the keyword 'static' in java programming mean?
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'static' means that something is associated with the class as a whole, and not an instance of the class. For instance, if you have this declaration: static int count = 0; And you have 100 instances of your class which run this line of code: count++; At the end, this line: System.out.println; Will output: 100 However, if the declaration is this: int count = 0; Then at the end, the output will be: 1 Because each instance only incremented their own copy of the variable instead of a class-wide copy.
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(Q,r) Inventory Model. What is it, and is it relevant to online businesses like Amazon?
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Say you're selling cheese. If you use the inventory model, you pick two numbers of cheese wheels, Q and r. Whenever you have r or fewer wheels remaining on your shelves, you immediately place an order for Q more cheese wheels. The hard part is determining what numbers are best to use for Q and r.
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Why does water evaporate all the time on a normal day when it's boiling point is 100°C?
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Evaporation of liquids into the atmosphere is a normal process that slowly takes place at any temperature. Individual molecules near the surface will occasionally escape away into the atmosphere, but below the liquid's boiling point, air pushes down on the liquid harder than the liquid pushes back, so evaporation is limited and slow. As the liquid heats, its molecules have more kinetic energy and start pushing against each other and against the air with more force. The boiling point is defined as the temperature at which the liquid and air are pushing against each other with equal force. At this point liquid molecules will very quickly start escaping into the air. The boiling point of a liquid is actually not a constant number either. Water boils at 100C *at sea level*. At higher altitudes the atmosphere is thinner and pushes down on the liquid with less force, so the boiling temperature lowers. This is why you'll often see special "high altitude" baking instructions for cakes and the like.
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What is actually happening when your body builds up a tolerance for something? (e.g. alcohol, caffeine, etc.)
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drugs affect the amount of available neurotransmitters, which get picked up by corresponding receptors. like a lot of physiological processes, the body self-regulates in an attempt to maintain balance. if you continually flood neurotransmitters, the body will increase the number of receptors, which means overall you need more pumping to get the same level of activation.
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How are federal buildings considered private property?
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The land is owned by the federal government, as are the buildings, as is everything inside of them.Could you expand? What building are you talking about? For example you aren't going to be able to walk into the Pentagon because its the fucking Pentagon.They are not, they are considered Federal property. The land, the building, and the equipment inside it is all owned by the government, not an individual.
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What is happening to my blood when I get so mad it feels like it's boiling?
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If you're in an argument and get angry, your fight-or-flight response kicks in and causes an increase in heart rate and blood pressure. Many blood vessels throughout your body constrict, which causes body temperature to rise quickly.
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Why don't christians have jesus as a name, like how muslims have mohammad as one?
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In spanish, Jesús is a very common name, like José or MaríaThe English version of Jesus is Joshua. And, as every other person has already indicated, in Spanish, that same name is Jesús.
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Why are college basketball/football rules different from the pros?
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The governing bodies of each league, be it NCAA or NBA, want to put a good product out. The rules are different because each league has found a reason to have different rules. Some of the rules encourage competition, such as the ground causing a fumble in college football. Some of the rules are just different because that is the way the game is played, like 20 minute halves in NCAA and 12 minute quarters in NBA. Even in the Pros, you have rule differences sometimes between the leagues, such as the DH rule in the AL baseball. Or the XFL with no fair catch.
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What happens to drug money / laundered money after it is confiscated by authorities?
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It is forfeited to the gov't. In some jurisdictions, it goes to the agency that seized it. This has caused a lot of problems, as those agencies more aggressively pursue causes where they smell money, often illegally. More often, that money goes to a general fund and is spend like any other money the gov't collects._URL_0_ ^ This. It has TV screens, speakers, and subwoofers all over the trunk/interior.This is a good example of a question that belongs in [r/answers]. It's not complex enough to warrant a simplified explanation. Great question though!
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Why people don't just type their question into google to get an immediate, detailed answer instead of submitting it to ELI5.
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I appreciate the people who post to this sub instead of using Google. I can now spend hours sifting through answers to pointless questions I didn't know I wanted to know answers to!", 'People want explanations they can understand in familiar terms, not highly detailed information full of inpenetrable jargon.A lot of times, explanations from google are either unreliable or highly technical. Granted, there is no guarantee that reddit's explanations will be reliable either but other users will check.One huge advantage to ELI5 is the interaction the OP can have. Asking for further explanation or clarification is a huge advantage to google resultsThey want the answer explained in simple terms.
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Why is Jesus holding an orb and putting up two fingers in many of his portraits?
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The orb is called a [globus cruciger], and symbolizes Christ's sovereignty over the world . In an interesting side note, this is yet another thing pointing out that yes, people *did* know the world was spherical before Christopher Columbus.
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If taste is 80% smell then how come soap tastes horrible?
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It's not that the strength of the experience is 80% smell, rather that out of the number of different flavors, most are smells. The basic tastes we have are salty, sweet, savory/umami, bitter and sour. The rest, like "vanilla" or "flowery" or "smokey" are smells. But the basic tastes can still create very intense tastes. Like eating a spoonful of salt will cause a horrible taste experience, even though it is only one single taste. The strength of the taste is just so overwhelming that a million floral and fruity smells don't mitigate it.
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What a Mechanic's Lien is/does?
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You take your car into the mechanic's shop to get it repaired. The mechanic fixes your car, and says you owe him $1,000. You don't have the money to pay him right now, but you need your car to get to work so you can make enough money to pay him. So, the mechanic gives you your car and keys back anyway and writes down that you owe him. However, if the mechanic is concerned that you are not going to pay him back quickly, he can put a mechanic's lien on your car. It is a legal thing that states how much you owe him and that the repaired car is basis for the debt. The existence of the lien can potentially prevent you from selling the car before you've paid him back, or force you to take the money you get from selling the car and pay the mechanic first before taking any for yourself. The exact details may vary depending on the state, country, or other jurisdiction you are in, and the details of the contract. This type of lien can also be applied to buildings and other properties that have been repaired or worked on by a laborer or craftsman of any type, such as a plumber repairing pipes in your house. EDIT: After doing a little more reading, I found that a lien can actually even be used to force you to sell the property in order to pay the mechanic or whoever holds the lien against you. This is somewhat similar to a bank foreclosing on a house or repossessing a car if the owner can't pay the loan off.
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During hot weather, why does my house seem to get hotter in the evening even though it has cooled down outside.
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Could be any of several reasons: 1) there are things in your house generating heat ; 2) residual heat from the walls and roof of your house radiating it back into your house; 3) if the sun is still shining, could still be heating the inside of your house faster than the heat can go back out the windows. Edit: spellingYour house is decently good at insulating warm or cool air, and when it cools down outside, there is a bigger temperature difference between outside and inside your house, so it also just appears to be warmer than earlier in the day. And of course there is also all the equipment in the house that creates heat as was said by another commenter.
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What's the facts on Kwanzaa? Is it a real thing?
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.The reasons it's a joke is that the sentiment of a new Christmas celebrating Africanness is a bit odd, those who would celebrate it probably already celebrate Christmas, and the traditions have no cultural or emotional root with people Imagine if I made a new holiday up of whole cloth celebrating Asian culture and all its splendors, celebrating the 3 things that make people Asian where its now traditional to put on ancient Mongolian headgear.You'd consider it a bit odd too, especially since some people don't feel they are represented by these ideals, or these traditions.yes its real. and still celebrated. back in the 60s, blacks didnt like the treatment they were being given. so Dr. Karenga created a holiday to bring the black people together as a community, bring back pride in themselves, and reintroduce african traditions back to them. kwanzaa is about 7 things Nguzo Saba-7 principles 1. umoja to bring the black community, families together as a race2. kujichagulia we have our own free will. and we should use that to the best interest of family and community3. ujima look out for our community. help those that need it. we have a responsibility to our family,community and world.4. ujamaa build our own stores and shops and reinvest back into the community so that we all benefit5. nia make it our purpose to see that we do things at will benefit the community as a whole6. kuumba your our creative energy to make the community stronger and healthier7. imani to believe in the best of ourselves and community, when we do so we we will succeed in our struggles and raise or self esteem ** side note: my family and i celebrate kwanzaa, and have since i was a teenagerReal as any other holiday or occasion/philosophy we feel needs to celebrated. Just like Festivus , which did start out as a joke, and is mockingly celebrated by some for the last 14 years or so.
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Why are bitcoins worth money?
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Bitcoin, like anything else, is worth money because we agree that it's worth money. Any value that anything has is only because someone else agrees that that something is worth trading for. The same is true of cars, diamonds, gold, and money. If it is accepted that X amount of Bitcoin is worth Y dollars, then that's what it's worth. If no one believes that it's worth Y dollars, then it's not.
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How can we be sure of the dates of historical events
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Knowing how they were implemented, we can sort of "convert" the dates from other calendars like Julian to our own. The Julian calender has a 365.25 day year. Gregorian uses 365.2425. That's a difference of .002%. Most of Europe adopted the Julian calender so it is pretty easy to convert since 45 BC. Before true dating, or using sources in cultures that do not date their events that did not date their events accurately or at all, we must cross-reference them to other known events. If all else fails, we guess.
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Why does adding slow motion to certain videos create a shutter effect?
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Imagine you have a video. You open it in your video software. After some investigation, you learn your video is 1 second long and consists of 24 individuals photos of a cat running. Cute! But one of your friends comes along. She isn't very impressed by the video. She says it would look cooler if the cat was moving more slowly. You find the option in your program to slow the video down so it's instead 2 seconds long. That should make it move in slow motiom, right? But when you play your now 2 second video back, it looks odd: there's a strange stuttering effect! This is because you only have a total of 24 original photographs in your video. The program you put your video into needs twice as many frames to create a video slowed down to be twice as long. Since you had 24 photographs in your video instead of 48, the program compensated for this by creating duplicates of frames you already had. Some programs compensate for this by creating a strobing effect between each frame in an attempt to blend them together as if the frames you have missing do exist. Ideally for slow motion footage, you need a camera that will take more than the average number photographs per second. Typically film will record around 24 frames per second. Many true slow motion scenes are shot at frame rates much higher than that.
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Why did Blu-ray win the war over HD-DVD?
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Sony owned blu Ray. They ps3 released in 2007 I think came w a blu Ray player That ended that. But Sony did let you bring your hddvds back and paid for blu Ray replacements. And hddvds players also you could return for bluray. I only remember that because a friend of mine at the time bought an hdvd player for his dad. And he returned it for a bluray no charge.I choose to believe Tropic Thunder: Because of the sheer volume of content it produces, the porn industry basically dictated the decision. Porn studios chose Blu-Ray, and the rest of the film industry followed suit, because by that point Blu-Ray had won. But why did porn go blu-ray? Well the PS3 came with a blu-ray player built in, and gamers love porn almost as much as they love games. I tried to find the scene on YouTube where Jay Baruchel explains this, but I couldn't. So just watch Tropic Thunder - it's a great movie.
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Why the asteroid in this .gif take the path that it does [particularly the parts where it speeds up and then suddenly leaves]
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The initial change in direction occurs because the object passes into a region of space where Earth's gravity outweighs that of the Sun. It's not a sudden change, which is why the path is curved rather than a sharp corner at this point. The final loop is special because it happened to bring the object close to the Moon. This part is a gravitational slingshot effect - the object "steals" some angular momentum from the Moon, and the amount transferred increases if the object gets closer. With a particularly close approach, enough angular momentum is transferred to hurl the object out of the Earth-Moon system. I 've been saying object because it's not an asteroid - it's [part of an Apollo spacecraft]Sounds like you need to play some [Kerbal Space Program] if this sort of orbital mechanics is interesting to youThe asteroid is essentially in an odd orbit about the earth until it comes into close proximity with the moon, which accelerates it out that elliptical orbit. By sudden change in direction are you referring to it arcing back toward earth after seeming to have passed by?', "The point where it enters the picture is right around the L1 Lagrange point, where the gravity felt by an object is equal from the Sun and the Earth, so an object left there will essentially stay there forever, without outside forces acting on it. When it crosses that point, it is absorbed by Earth's gravity, and starts a normal orbit. When something gets close to the body it's orbiting, it speeds up. When it leaves the system is when it gets attracted by the moon just ahead of it which pushes it into a higher orbit, and that orbit takes it back beyond the Lagrange point, so the Earth loses its hold.
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Why does everything continue to exist, from moment to moment? What prevents the all-ness of everything from randomly, suddenly ceasing to exist?
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Your question is similar in feel to the question 'why is there anything at all?'. Thinking about this sometimes gives me vertigo, or makes me scared of death. Imagining the reality in which nothing exists feels like trying to imagine myself not existing . So I guess I'd say there is no answer because it would need an underlying understanding of why anything exists at all .which we don't have. Another answer to your question could be 'due to the beings running the simulation'. The idea that our universe is actually a simulation has been around for some time. If you believe this then the reason things continue is because those running our universe don't want it to end yet.
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Why do different types of alcohol have different effects on behavior?
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To my knowledge, little to no actual data exists on this. It is mostly anecdotal. However, alcohol makes you drunk. It really doesn't matter what kind of alcohol it is. Apart from the likelihood of a hangover the next day, the type of alcohol you drink actually doesn't actually have different effects on your behavior. However, if someone is convinced that they will get into a fight if they drink whiskey, they may well end up getting into a fight if they drink whiskey. But, this seems like it is due more to a state of mind than to the type of alcohol consumed. Unless we're talking about chasers. Those actually would contain things that would make you act differently. You simply are more likely to do something stupid with a red bull a vodka than with a neat whiskey, for two reasons: 1) alcohol lowers your inhibition, 2) caffeine gives you more energy. That just isn't a good combination.
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Why do bees produce honey? Why is it not harmful for the hive when we steal it all?
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They use it as a food source through the winter. It IS harmful if we steal it all; the hive will die without it. That's why people interested in keeping the hive alive only take some, or take it all and provide them with another food source.
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Why does 'humid' cold feel colder than 'dry' cold?
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Humidity is the amount of moisture in the air and water is a good thermal conductor so when its cold water is cold and hot water gets as well. So when its cold and humid it will feel colder than when its dry because of the moisture in the air. It also has the reverse effect hot days will feel worse when it's humid.
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What exactly causes mouth ulcers? Why are they white and why does salt help to heal the ulcers?
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Replying from phone. apologies for any typos. Ulcers can be caused by a number of things. Stress, viral infections, bacteria, allergic reactions, etc. So no one thing causes it. The whiteness, is basically your mouths way of scabbing over. Combination of platelets, mucous, and pus. If you have ever gone swimming and had a scab, you'll notice it starts To turn white after a while. Sort of the same thing Salt helps to cauterize and sanitize the wound. Alum rocks are a popular treatment in the Philippines. In my experience this works better than table salt. Especially if you clean the area first. You can find alum in most spice sections of grocery stores. it's a popular pickling agent. Ulcers are painful and this isn't really recommend because of the pain involved. plus there is no way of checking how clean the alum/salt is. although generally things that can infect us can't survive on salt or alum. It's also not recommended because it damages healthy tissues. Still, I find it causes it to heal faster, so I generally do it anyway. The initial jarring pain of the salt desensitizes the area. It may also be outright killing some pain recepters. I've experimented on treatmentmyself. I find the oragel stuff works ok. Provided you clean the area. It also has benzocayne to Help with pain. This may work better as it is less harsh than chemical cauterzation via salt. Alum and this stuff are my go to treatments.
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What can OSX not do that Windows and Linux can?
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I use all three on a regular basis and I find the pro/con arguments for each system to be a bit overblown. For the average end user there is little difference other than aesthetics. Chrome looks the same on all three operating systems, and that's about all the average person uses their computer for anymore is web browsing and the occasional word processor.
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Why are there different screw heads? Why not just one head, used everywhere?
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Originally, screws were designed for flat-headed screwdrivers and were very expensive to produce. With the advent of automation in factory settings, however, screws were needed which could better stand up to the power of automated screwdrivers. Thus, the Phillips-head screw was designed to help better center the screwdriver and protect the head from stripping. Thus, it appears durability during the insertion process is a major reason for different types of screw heads. Link: _URL_0_', "I can tell you that the [Robertson] screws are popular in Canada, for being objectively better than other kinds of screws. They don't cam out, and a screwdriver will hold a screw horizontal, so you can use it with one hand.
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How much is the average college partier doing to his/her body, by binge drinking every weekend over the course of four years?
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Follow up question: how much is that damage exacerbated by continuing for the following 8 years?Binge drinking alcohol is actually one of the most harmful drugs to your brain. "“Frontal white matter tracts are the pathways that connect the frontal lobes to the rest of the brain,” study co-author Catherine Brawn Fortier, a neuropsychologist and researcher at the VA Boston Healthcare System and assistant professor at Harvard Medical School, explained in a press release. "The frontal cortex is the integration center for all other parts of the brain that are important to behavior and cognitive function. These pathways support self-monitoring, planning, judgment, and reasoning." Not only that, but Fortier added these frontal pathways drive the ability to learn and change new patterns and behaviors. By using high-resolution structural magnetic resonance scans to create and assess a 3D structure of "global and regional white matter," Fortier and her team could see reductions in middle-aged recovering alcoholics\' white matter pathways compared to non-alcoholics. Recovering alcoholics included participants who were five years sober after 25 years of alcohol abuse. Damage to the brain’s white matter was a result of higher quantity and exposure. Basically, the more you drink, the more damage you do to your brain. Gray matter is negatively affected by years of heavy drinking, too. Gray matter is a major component of the central nervous system, and it's a large group consisting of neurons responsible for brain function. The structure of this group processes the information from our sensory organs and other gray regions of the brain. And like white matter, reduced gray matter worsens a person's planning, prioritizing, impulse, and memory. The message is clear: The longer and more a person drinks, the worse their control and judgement is, lessening the chances of sobriety as they get older. Heavy drinking hurts the brain's ability to function and heal all at once. The time to get help for alcoholism is now."
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Why is the sign for a dollar $ when the dollar starts with a 'D'
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historical reasons, it's easy to find on [wiki dollar sign]. there are two possibilities, it evolved from spanish peso ) by merging of two letters and evolving into $ picture)
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What's going on with Nick Clegg?
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Nick Clegg is the deputy Prime Minister and leader of the Liberal Democrat Party. The current Prime Minister of the UK is David Cameron; however, he is only Prime Minister because his party entered into a coalition with Nick Clegg's Party. Nick Clegg is in the news a lot now because his party is having its annual general conference . Basically, many people feel that the Lib Dems haven't been doing what they promised to in their manifesto. The Lib Dems themselves claim that this is because they are in a coalition government and, therefore, **can't** deliver on them because they would just get overruled by the conservative majority. Clegg doesn't "like" Miliband and Cameron because they are the leaders of the main parties . Boris Johnston doesn't really have anything to do with anything. He's the Mayor of London, and, as such, holds no real power to speak of. However, he's been given more media attention lately because there are rumours that he's going to try to move up in the conservative party . Ed Balls is the Shadow Chancellor.
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Why are there so many Saudi Princes? And how many are there?
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There are 15,000 members of the royal family in Saudi Arabia, all princes/princesses or better. Part of this is just due to the fact that Saudi Arabia has practiced, and still practices, polygamy. The founder of modern Saudi Arabia had at roughly 100 children, 45 of them sons. His youngest was born **52 years** after his firstborn. Picking three random sons : Saud, Faisal, and Khalid. Saud had 115 children, Faisal 19, Khalid has 9. The "norm" for Ibn Saud's sons and grandsons is closer to Faisal and Khalid than Saud, especially now that the law states a man can have no more than 4 wives, but that's still wayyyyy more than the British royal familyKing Abulaziz Ibn Saud who established the Kingdom in 1932 had 36 sons during his life time. The system is complex, but the succession to the throne is passed down to brothers - ie. sons of Abdulaziz Ibn Saud> It seems every time you open the news, there is another story about a Saudi Prince Doesn't help that they're basically the "Florida Man" of the Middle East
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Why do they still paint airforce planes in camouflage?
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The paint on the B2, F22, F177 is radar absorbing paint which helps reduce it's radar signature. And the paint on the other planes is CARC paint which is chemical and radiation resistant.They are not painted for camouflage. It may look like camo but the paint is special and has other purposes.
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Why is standardized testing such a big deal?
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Your GPA depends as much or more on how easy of a grader your teacher was than how good of a student you are. Standardized tests don't tell them much, but at least it gives them something they can use that can compare between students in different schools.It gives the country an easy way to compare scores and track progress and trends of different schools.
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Why haven't insects evolved to be able to avoid spider webs?
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What makes you think they haven't? They're in an evolutionary arms race. Bugs that can't escape or avoid spider webs die. Spiders that can't make a spider web that catches bug dies of starvation. Each generation the poorest web making spider dies of starvation, and the insect least able to avoid or escape spider webs dies as prey. Repeat that for the millions of years.
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