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Why does everyone hate flash so much? Why is everyone trying to get it blocked everywhere?
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Flash is a system where web designers can do things on a webpage that is not usually possible through html. It can play video, connect to servers, read and write to the operating system files, and more. Unfortunately, to achieve all of these features, flash had to give its programs increased access to the operating system. Flash tried to protect the operating system by creating a 'sandbox' - forced limitations of how the flash programs can use the operating system, but Flash has failed to keep its programs in the sandbox in many, many cases. So now a programmer could use one of these holes in the sandbox to install viruses, steal data, control the web browser, and other bad activities. Flash tries to block the holes, but new ones keep popping up. The public has lost trust in Flash, and now there are efforts to remove it completely from the web to better protect all of us users. Additionally, advertisers were able to use Flash to to make the web annoying. Advertisements would make noise, flash, play video, and talk. Compared to the pages, the flash advertisements were large and could slow down the computer. So now you are trying to read the news, and right in the middle of the article are 3 monkeys trying to dodge your mouse cursor, a car driving through a box, and bags of money enticing you to click on one. So in addition to the security issues, Flash became synonymous with advertising, attracting even more hatred.
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How do I use a semicolon?
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Basically you use them to replace transitional phrases like: "such as," "and so," "hence," or "that is to say."', "A couple cases: * 1) Lists that contain internal punctuation* 2) As a substitute for a conjuction between independent clauses* 3) Between independent clauses that are linked by a transitional phrase or a conjuctive adverb * 1) I need to buy an old, ripe banana; a crisp, red apple; and some fresh, cold water.* 2) I need to go to the store to buy some things; we don't have much around the house.* 3) I need to go to the store to buy some things; instead I will be lazy and play a video game.
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Where did the stereotypical image of the Halloween witch come from?
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The idea of witches riding brooms is hundreds of years old. Otherwise, witches in history were depicted as regular looking women . The green skin, long pointy nose, and regular witches hat come from ~~Dorothy~~ Margaret Hamilton as the Wicked Witch of the West in The Wizard of Oz . Prior to that film, the Wicked Witch of the West was short, squat, one-eyed and had a big bulbous nose and a either an extremely tall pointy cap covered in decorations or a floppy Papa Smurf stocking cap ).From the Wicked Witch of the West, from The Wizard of Oz. Seriously. Much like our modern depiction of Santa Claus as a jolly and tubby old white guy with a long white beard and dressed in a night gown comes from the old Coca-Cola Christmas-themed advertisement.
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Why aren't can't people remember distinct memories from their childhood?
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Human memory is actually a very flawed system. We have forget lots of things - most of our sensory input is almost immediately dumped and we retain a very small fraction of what we perceive.Also, memory is highly fluid. The current understanding of memory is that memories are re-experienced and recreated every time we recall them. Memories, even those in which we are very confident, change over time and drift farther and farther away from what actually happened. So yes, we have the issue of general flaws in human memory combined with the fact that much of our very early life ends up being irrelevant to our adult lives. On top of that, brains aren't fully developed until later in life. So not only are the memory systems you have in place now deeply flawed, but they weren't even fully operational back when you were a toddler. Source: BS Neuroscience.
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The "jet fuel can't melt steel beams" conspiracy, it's plausibility, and scientific evidence related to the conspiracy.
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Jet fuel burns from 800° to 1500°F, not hot enough to melt steel at 2750°. However, for the towers to give way, their steel frames didn't need to melt, they just had to lose some of their structural strength, which was entirely possible. Hope that clears that up a bit for you.
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Why don't we use anesthetic before getting piercings and tattoos?
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Because administration of anesthesia is a potentially deadly activity requiring generally a much higher level of training and credentials then administering a tramp stamp.Anesthesia potentially has very serious side effects, so whenever possible it's not administered. The pain of a tattoo or piercing is very much bearable without anesthesia, so it's not administered. Furthermore, the use of anesthesia requires expensive training. So all in all, it's not worth spending a lot of time, money and effort to take a completely unnecessary risk.In a response to the other people who commented some people enjoy the pain of a fresh new tattoo getting put onto their body.Anesthetics can be dangerous, and piercings and tattoos aren't very painful.
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Where do the rocks around the perimeter of lakes come from?
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I suspect the reason is that: Rocks around the lake are those we see laying on the soil's surface or partially in-bedded, being as water from rain, melting snow, the natural level of the lake water rising and receding, washes the surrounding soil into the lake leaving the heavier rocks visible. Take a flat area of land not far from the lake, the rocks are there, too. But still under the soil from not being subjected to the water erosion that leaves them nearer the surface when closer to the lake.
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Why does cleaning our tongue (I.E When brushing our teeth) make our breath smell better?
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Because your tongue is home to tons of bacteria that cause bad breath. Brushing your tongue removes themYour breath goes over all of the tongue to get out of the mouth. Getting rid of the bacteria causing bad smells on the tongue reduces the smell picked up by your breath.
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how do satnav routing algorithms work?
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[This animation] shows the basic way it works, using something called "Dijkstra's Algorithm". In this algorithm, junctions or intersections are called "nodes". Paths between nodes are assigned a "cost" - the cost might represent the distance, or the journey time. In the animation, we are trying to find the best route from A to B. From A, we look at the cost of getting to each node joined to A. Then, from each of these nodes, we look at the total cost of getting to the next node. When we do this, we check whether we 've already found other ways of getting to the same node which cost less. When we find a node, whose onward nodes *all* have less costly ways of reaching them, we disregard that node. Then we repeat this until we 've disregarded all routes to B except one.
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Why do new games sold digitally on steam cost as much as physical disks for consoles?
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Not sure but steam library usually doesnt scratch, can be re-downloaded to a new hdd on a new pc, game is usually full of more goodies/customizable than a console disk blah blah. Also disks are obsolete. I dont even have an optical drive and the only time I would have ever really needed one was installing drivers, which a wired connection got me all groovy for. I guess if you got dat crysis 1 or oblivion on disk but really they want money too. I havent actually seen a newerish, even, game on disk for years. It is a very valid question but in my opinion I would rather pay the same price for a superior product in comparison to the console version even though I dont retain a physical copy. Unless I accidentally format my hdd afyer moving to the Yukon territory', "Because people will pay it. They could logically charge more because people would pay it for the benefit of it having to deal with the physical disc. Cost isn't just based around how much something costs to produce, it depends on how much you can negotiate for.
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Why can I always see the moon? During the day, why can I still see it, though slightly faded?
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Because it's there. The moon is a big ball of rock and dust about a quarter of a million miles above us. At night, the part that the sun shines on is easily visible to us, but the rest of the moon is still there. During the day it gets just as much light as Earth, and is quite reflective, so it's bright enough to be seen during the day.
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Why are "weeds" more fertile than other plants?
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This is essentially *why* we classify them as weeds. The defining trait of weeds is "they grow where we don't want them to" and fairly typically this involves invasive growth, tolerance for disturbed earth, and rapid spread/growth. In other words, "they show up where we're doing yard work, and won't go away" Biologically, the plants we call weeds aren't necessarily all that closely related, they just share traits a particular population finds annoying. So the mechanisms for how, and even the environments they prosper in, can vary widely. Beyond that, many of the plants we *do* want, we are growing outside of their natural environment. We choose them for ornamentation, not suitability. So they may require specialized care and be relatively incapable of spreading in the garden, even though they could spread all over the place they call "Home."
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Pointers in C++, how to use them and why we need them
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It's a pointer to a memory location. If you have a massive data structure then it's more efficient to pass a pointer which just points to a memory location than it is to pass it as a variable that will duplicate the data structure.
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Where did the bacteria in our mouths come from?
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Your fingers, straws, cups, forks, spoons, the air, the food you put in your mouth has bacteria on it your toothbrush has bacteria all over it. Bacteria are extremely numerous and extremely common. Brushing your teeth doesn't eliminate all of them, cooking your food doesn't eliminate all of them. They're a fact of nature, good or bad, and you do need them to survive. Your body is covered in them, inside and out.
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does every living creature feel pain?
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No, many animals lack the nervous system requirements to feel pain as we would understand it. Plants are totally out of the running and bacteria are just single cells.Apart from the excellent answers already given, it is also thought insects can feel no pain.This is because mortally wounded insects often don't even seem to notice they are missing half their bodies and go about their business trying to mate and eat as if they weren't dying.
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Why do Atomic Bombs make a "Mushroom" shaped cloud when they detonate?
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Hot air rises. When there is a large enough source of heat, it creates a column of hot air that is much hotter in the center than on the edges. The center of the column rises faster, causing the air around the edges to curl and create the mushroom shape. Then, with a big enough explosion the air eventually reaches the point in the atmosphere where the hot air isn't any less dense than the surrounding air, and it stops rising and instead spreads out, forming the cap of the mushroom.
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Why do hackers feel the need to release private information to the public like officals' names and addresses? What do they gain from this?
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The same thing that kid in middle school got out of making fun of your shoes and squirting ketchup on them. Publicity and embarrassment. Bullies thrive off of the reaction they get out of it, my assumption is thats what pointless hackers get out of pointless hacking.I writing this under the assumption you mean blackhats. Sometimes it's the appeal of vigilante justice such as when a group of hackers released a list of public officials who are a part of the KKK. Everyone wants to be like Batman in their own way. Other times it is just a ploy to embarrass their enemies and gain street cred .. er, web cred.Could be lots of reasons. The chief reason I can think of is control. I assume OP's question refers to black hats, or criminal hackers. In these cases, they may publish the data for publicity or acclaim, even if it's only among other hackers. Sometimes an amateur security enthusiast may discover a security flaw in a piece of software, merely by tinkering. The company who designed it is likely devoted full-time to developing new tools, so if this person contacted them and said "Hey, heads up, I figured out your shit can be broken by doing steps 1, 2, and 3," it's entirely likely that the flaw would get put on the to-do list and then never get done. So, sometimes good hackers will tell a company "hey I found a bug, you have 3 months til I release it on the Internet." This provides incentive for the flaw to be fixed, but if you buy things from a shady manufacturer, they may not bother fixing it and then your things can get compromised.Mostly to demonstrate that their data is not save and that they should invest in making their systems more secure or possibly not store such data in the first place. Some times there are political reasons. Some times it's for the fun in it.
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Why fog lights are able to cut through fog while brights only light up the fog more.
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Fog lights are closer to the ground and are aimed slightly downward, so that only the fog very close to the road's surface reflects light back. High beams are high and have a wide beam that sends light upward, so that instead of just a thin layer of fog between you and the road being lit up just about everything in front of your car is.Fog lights aren't able to "cut" through fog any better than any other kind of light, regardless of color temperature. Fog lights work because they are low on the car and focus their light directly in front of the car. More light is put onto the ground in front and to the sides of your car and less light is scattered. To effectively use fog lights, you would have to turn off your low/hi beams and drive slowly. This allows you to watch for hazards, as fog lights do not throw light far enough to drive fast. Most fog lights seen on modern cars aren't actually true fog lights. They are an aesthetic feature and are often times on at the same time as the low beams.
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What is turbulence? And how do airplane pilots sometimes know when they are about to hit turbulence?
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Pilot here Pilot reports are really the best way to know when it will be bumpy. One plane 100 miles ahead will report turbulence at a certain altitude to ATC and then they will relay the message to other planes. Those other planes can then decide if they want to deviate course or altitude Also just don't fly into those big puffy white clouds, they are bumpy.
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What's the difference between RealD 3D & IMAX 3D?
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IMAX uses a different polarization technique . RealD 3D can tolerate a lot more head movement, while with IMAX 3D you pretty much have to keep your head focused on the screen, but can work even when sitting at an extreme angle, RealD 3D has a more noticeable sweetspot . RealD 3D is shown on a single 2K projector or a single 4K projector, with the projector alternating at 144fps . IMAX 3D use dual 2K projectors, which gives you much brighter picture . IMAX also has their new dual 4K laser projection which is their renovated 70mm IMAX theaters, only a handful exist currently but over 70 around the world are confirmed to switch in the near future. IMAX 3D is also more "3D" meaning the separation between the front and back of the screen is more noticeable . The IMAX Corporation analyzes all 3D movies they are set to screen to make sure everything looks good.
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how do your eyes get dilated?
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How: A little muscle called the iris dilator constricts and relaxes according to stimuli, to let more or less light in as needed. Good info here: _URL_0_. Sometimes your optometrist will use drops to see inside better. Drugs and trauma can also make one or both eyes dilate improperly. Fun fact: Women used to put drops of foxglove in their eyes to make themselves more attractive. When you're excited, your pupils will dilate. ;)
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What is the difference between Shia and Sunni branches of Islam
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It started after Muhammed died and there was a power struggle over who would be caliph. Basically that's where everything went to hell. Sunnis believe that Abu Bakr, the father of Muhammad's wife Aisha, was Muhammad's rightful successor. Shias believe that Muhammad divinely ordained his cousin and son-in-law Ali Ibn Abi Talib in accordance with the command of Allah to be the next caliph, making Ali and his direct descendants Muhammad's successors. Shia theology discounts the legitimacy of the first three caliphs and believes that Ali is the second-most divinely inspired man and that he and his descendants by Fatimah, the Imams, are the sole legitimate Islamic leaders.The Imamate of the Shia encompasses far more of a prophetic function than the Caliphate of the Sunnis. Unlike Sunni, Shias believe special spiritual qualities have been granted not only to Muhammad but also to Ali and the other Imams.
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How can any drug cost $360,000 a year for a patient.
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When a pharmaceutical company creates and patents a new drug, they can charge as much as they want for it, since no one else is able to sell or produce it without their consent. The reason this doesn't completely prevent people from accessing the drug is because their health insurance providers often pay for it. On top of making a profit, the pharmaceutical companies use the money to research and develop new drugs and to cover the costs of other drugs that didn't make it to the market.I know a lot about this topic because currently my mother is using herceptin that is costing around 2,000 USD a shot that is required every 2 weeks for around a year and health insurance in my part of the world only covered like 5,000 USD a year and thats considered to be one of the better plans out there. Anyhow its R & D that makes up most of the cost not the medicine it self. Also most of these life saving drugs fail in trial basis before even entering the market and those cost also have to be calculated in R & D Cost. Pharmacetical companies have to make money or simply put they will stop researching new medicine. Coutries like India for example, do not follow patent rules in the medicine industry and after a few years the exact duplicate do come out for a fractional of a cost. Yes, its not fair for the companies but i dont think even 1% of the population here can afford to buy these medicines at full price
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Why are some foods high in sodium but they don't taste particularly salty?
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Not all sodium is in the form of salt . Baking soda, for example, doesn't taste nearly as salty as the same amount as salt. MSG has sodium and isn't salty . Also, other tastes, especially sweetness, can hide the taste of salt.
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How is the curiosity rover different than the mars rover?
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NASA has successfully landed three rovers on Mars. You can [see the differences here]. The Curiosity rover has 10 times the mass of scientific instruments than the Spirit or Opportunity rovers. It will be much better at studying the climate and geology of Mars, and better at determining whether there is/was life there. Basically, it is much bigger and can do a ton of stuff that the previous rovers couldn't do.
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Where does the money dissappear in a financial crisis like the one in 2008?
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I believe it was never there. It was money 'shown' on shares of all the worlds companies. As soon as the confidence goes, the share price falls and therefore even with the same amount of shares the value is lost if no one is willing to pay for them.
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Tipping in the US.
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It's a cycle. Tipping may have originated because wages were low, or customers were being generous. From there however, wages were cut because employers realized that servers were making more for tips. Then there was more pressure to tip, so more people did, and then wages were cut further, etc. No one minds the system. Food prices tend to be a bit cheaper, so you end up paying about the same in the end. And, since the vast majority of the server's salary is based on tips, service tends to be very good. Obviously there are exceptions, but on the whole it's not so bad. Very good servers at expensive restaurants can make a lot of money, and this money is often shared with the busboys, the cooks, and whoever else.
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why do we have recurring dreams. What makes our brain think those things over and over again? Also what makes us think of things in dreams?
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Ok. This is going to sound a bit strange, but you can trust what I say around 70% of the time. Ok, here we go: There's a structure in your brain called the hypocampus. Its job is to collect your audio and visual senses and relay them to your higher brain for processing. Much like many businesses have a department dedicated to collecting and organising data for the higher ups to analyse. When you fall asleep, most of the input to your hypocampus from your eyes and ears is shut off. So your hypocampus is only receiving a fraction of the information it was receiving before. What it does now is quite strange. Your hypocampus, much like the data collection department in a large company would do, simply makes it up. In order to keep the nerve pathways healthy and active, it fires messages off into the higher centers semi-randomly. The reason I say semi-randomly is because these messages can sometimes be affected by the upper brain, or other parts of the brain and spinal chord while you sleep. Ever wonder why when you really need to pee while you're sleeping you sometimes have a pee dream that wakes you up and makes you run to a toilet? That's an area of your lower brain that would normally send the "I need to pee" message to the higher brain to make you think about it. Except while you're asleep it gets jumbled up with a lot of the random stuff. Now, recurring dreams are a bit different. That could probably only be explained by imprinting or overactivity of the higher brain during sleep . So basically, your higher brain is stressing something. Like "fuck that was embarrassing", or "that bastard killed my parents in an alley behind a theatre", and the messages from your hypocampus jumble it a bit and it gets accidently saved as a memory. Hope this helped!
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The difference between OOP, Top-Down programming, and bottom-up programming.
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[This is bottom up programming.] The first sentence says it all. [This is top down programming.] Again, the first sentence says it all. [Object Oriented Programming] is a concept of encapsulating tuples of data as "objects" as a type and associating them with behaviors relating to those types. It takes a bit of description for it to make sense, so read the Wikipedia and look at the examples. In a practical sense, you express a bunch of variables and assign them a type name. For example, you have wheels, doors, and an engine, and call it a car. This is distinct from wheels, doors, and an engine and calling it a plane. Yes, they have all the same parts, but that does not make them the same thing. The distinction is important. And now that you have a type, you can instance variables of that type. "car A; car B;" for example. You don't act upon the collection of variables, you act upon the object. You don't "A.door = open;", you write functions that know how to do it - "open_door { c.door = open; }" This just barely scrapes the surface; it doesn't describe *why* you would want to do this, or how it's helpful, but that's because I didn't introduce you to polymorphism. There's so much more, but it's an academic exercise. Start with the Wikipedia article, if you're interested. And if you're studying C++, you'll eventually want to [read this]. Long story short, if you don't have to make that function or variable a member of a class, don't. If this doesn't make sense, it will. If you're not using C++, then ignore this paragraph entirely; other languages will be very different.
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Why is healthcare in the US so connected to religion?
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One of the inherent values of Christianity is taking care of the sick and the infirm. Providing medical care is a natural outgrowth of this belief. It is my understanding that medicine was not always the respected career field it is now. It was once sort of looked down upon because you spent your time around sick people, and were much more likely to get sick yourself. It took real selflessness--the sort that would be found in joining a religious order , to help sick people. So, many hospitals were started by religious groupsIn the US, there are hospitals that are publicly owned and hospitals that are privately owned, and some of those are non-profit. There are tons of secular ones as well, but plenty of religious groups open hospitals because they believe caring for the sick or weak is something Jesus would do.When religious groups are looking for ways to help their local community, founding a hospital or medical center seems like a fine idea. Many such hospitals are also the sort of non-profit that the church administrators have experience running. They also build homeless shelters and run other projects, you may just be recognizing the medical facilities more.
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Can lakes that are dead zones be "un-dead zoned" or purified
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Possibly. The problem is the absence of adequate oxygen, but the underlying cause can be different. For instance the most common cause is the increase in phosphorus allowing the bacteria that feeds on it growing at a faster rate, and they eat up the oxygen. So we could find something to destroy the bacteria in large quantities. Radiation might work. We could possibly find something else that eats the phosphorus but doesn't consume the oxygen. At which point it is a race between the two phosphorus eating things to see which outlasts the other. In the oceans either solution is difficult to do because of tides, the sheer size, ocean currents and a number of other factors. Lakes are a little easier because it is a more enclosed environment. Also there can be unintended consequences of either solution. However all of this is theoretical, we don't have a good solution as of yet.
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How does a gentle rocking motion help send people to sleep?
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Because it reminds then of being in the woumb. Same reason that white noise lulls people to sleep.
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How does Google or _URL_0_ still know my real IP address when I'm using a VPN?
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They shouldn't be able to do that. But, as [this page on the whatismyipaddress website] describes, it may be that the real IP address is being "leaked". The leak is using something called "WebRTC", which can be tricked into finding your real IP address and sending it to the server. The page also describes how to prevent this happening in several major browsers, if it's something you're worried about.
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Why does human hair grow for so long that it has to be cut while the hair on chimpanzees or cats for instance just stop at a certain point?
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I think that's because they have fur/body hair rather than hair. Poodles, for example, have hair and they need regular haircuts, i believe. I don't really know why the body hair/fur doesn't grow, probably just falls out before it gets too long whereas the hair on our head doesn't do the same or had a longer life.
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Why do minor illnesses like a head cold take the body sometimes weeks to get rid of, whereas Gastroenteritis or Influenza can take a day or two?
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Different viruses/bacteria have different durations before our immune system can eradicate the pathogen. Also, in areas like the sinuses, inflammation from allergies or viral infections can predispose the tight areas to subsequent bacterial overgrowth/infection due to lack of ability to drain properly.
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Why when I think about actually breathing do i find myself having to breathe "manually" until I forget about it?
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Breathing is an act that is based in an involuntary part of the brain but a portion has become voluntary . Two different brain circuits can control it, therefore it seems necessary at times and completely automatic at other times. Edit:typos, typos, typos
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What actually happens when food or a drink "goes down the wrong pipe"?
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I seem to be prone to this for some reason, I've never figured out why. I figured out years ago that when I feel this is about to happen I just quickly bend over as if reaching for my toes. I can literally feel the liquid draining back up my throat and the problem is gone. I cannot stress how much this one weird trick has actually made my life better. It would happen so often, and I wouldn't feel right for a good 30 or so minutes after. Now I just bend over and I'm fine. However, I have the new problem of having to explain to people around me what I'm doing.You have two tracts in your mouth called the larynx and the esophagus. Basically one is for breathing while the other is for swallowing food & drinks.
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how can the majority of large animals eat so infrequently and such simple diets yet maintain such strength and mass?
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They eat 5-7000 calories/day. That is a huge amount for a < 300 lb animal. Meat is very calorie dense and they eat a ton of it.
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How to claim unfair dismissal in the UK?
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You can read about [employment tribunal] over at _URL_0_. If you scroll down there's a enquiry line you can call.
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Why am I no longer hungry after being hungry for a long time?
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You eat food and your stomach has stuff in it, then when it starts to be digested your body want to replenish the lost food in your stomach. After there is no more food your body adjusts to have little of no food and you wont get hungry for a little while. ', "It's a survival thing I'm case of famine so you'll still be hungry, but not uncomfortable.
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How can it be that my singing Hallmark card has more technological power than Apollo 11?
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This trope is accurate when discussing processing power, but not technological power. I'm not even sure how one would measure technological power.Exponential growth is pretty staggering, and transistor-based electronics have experienced a pretty steady exponential growth since their inception. Microscopic-scale transistor technology has become so cheap, that although your singing card by no means is more complicated than the Apollo mission electronics, the most economical solution is probably to implement the card's circuitry on a chip that has waaaaaay more "processing power" than you need. The scenario I'm envisioning as probably the most economical for mass producing a singing card is to use a Programmable Gate Array or a small microcontroller. Either one can be readily purchased in bulk, stuck onto a battery and a speaker, programmed and that's it. Both a PGA and a modern microcontroller could be considered far more advanced and powerful than the Apollo computers, and could probably be programmed to do the same job. The singing card could also be implemented with something far less powerful, but companies making these in bulk are interested in making a product that will appeal to a wide variety of uses. Yes, they have "tiers" of different products with different levels of "power" but there's a lower limit where they're just so cheap to make, it doesn't benefit them to keep making smaller/simpler models.
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What is abstraction in computer science?
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Computers do lots of really complex things, right? In order to make them simple for people to understand and work with, we provide *abstractions* of them. Let's say we want to have a linked list of numbers. You could, every time you want to add an element to that list, allocate the memory, put the value in your new data structure, find the end of the list and then update that to point at your new element. You could, every time you want to access the *N*th item, loop through all the elements of that list until you've gone through *N* and then use that value. This is not only a lot of typing, it's error prone & all that duplication makes it hard to modify your code if, for example, you wanted to replace your linked list with a more efficient skip list or something. What do you do? You write some functions that give you an `add_element` function and a `get_nth_element` function. You can use these when working on a list *without caring how it works under the hood*. This leaves you free to use linked lists without massive code duplication, easily fix bugs or even change how it's implemented. Providing that interface over a complex underlying implementation is an **abstraction**. Abstractions are everywhere. When you open a web page, you're not telling the computer how many volts to shoot across your ethernet cable, you're working on top of a bunch of layers of abstraction that give you a simplified way of doing a complex task.
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How is it that during the day I can see the moon and the sun, but on the opposite side of the earth it's night time and the moon is clearly visible?
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If the moon is directly above you, the it will NOT be visible on the other side of the earth. It will be a dark, moonless night for them. If the moon is to your left, it will appear to the right in the sky of someone on the other side of the earth from you. The moon is high above the earth. Therefore visible to a large part of the earth simultaneously.I'm not sure if this is the case, but it seems like you're under the impression that the moon is always visible at night. Sometimes it's not.
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What's going on with the NBA?
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Some NBA owners are terrible businessmen who negotiate contracts they can't afford to pay. The rest of the league can't tell them to fix it themselves, because as soon as they stop operating as a single entity they lose anti-trust protection. As a result, the league has to protect the mismanaged teams. They chose to lock out the players and try for a bigger slice of the pie. The difference between the NBA and the NFL lockouts is that in the case of basketball, its now the second or third most popular sport in the world. This gives the players enormous leverage, as a majority of them can find work overseas. And remember, the players want to play, its the owners that locked the doors. That's why you don't see the players chomping at the bit to compromise. The lockout hurts the owners more than the players, and eventually they're going to need to generate revenue outside of jersey sales.
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Why do people become more religious as they get older?
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Statistics notwithstanding, you're generalizing. I'm in my 70s, never thought much about religion when I was young , but as I've gotten older I've become more and more aware of the damage religious belief and doctrine does to people -- especially younger people who have been brainwashed. The older I get, the more ANTI-religious I become.
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Sleep? What is that?
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Sleep is a metabolic process where your body is put at rest because your brain needs some time to cool off from all the information it had to process that day.A good analogy is a not so perfect vehicle. Imagine a vehicle that can only be driven 2 hours at a time before it overheats. To be able to drive long distance, you would need to immobilize it so you can safely turn the engine off to let it cool down. When you stop, you have 2 choices, you either turn the engine off right away or you can just sit there and rev the engine up and down by playing with the accelerator, which will increase the amount of time to cool off. Well, same thing for our brain, when we lay down , we are immobilizing ourselves but our brain might still be going. An irregular melatonin production is probably the main culprit as this chemical is needed to regulate sleep. Melatonin production is affected by a lot of factors but 2 of them are the main culprit. Stress and Environment. Obviously, a stressed person will take longer to go to sleep but what about the environment. Well, It is now being acknowledged that looking at a bright light will reduce your chances of falling asleep fast. Cellphone, computer screens, TV screens wake us all up. So if you want to fall asleep fast , try no to look at a screen or in the presence of bright lights 1 hour before going to bed.TLDR: get off reddit 1 hour before bedtime.
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When nuclear bombs are tested over water, what happens under the water's surface?
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The water's surface is vaporized immediately due to the extreme heat. Those water vapors travel upward and mingle with all of the radio active particles before going far up into the atmosphere. Those tiny water vapors carry radioactive particles with them until the vapors condense and fall as a rain drops. Then you have radio active rain.
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how a suppressor can thread into a barrel, and the bullet still pass through, since there is now less space?
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Threaded barrels have the threads on the outside, not the inside. The suppressor will thread onto that, so the internal barrel diameter will not change. [Here's a picture of the threadings on a barrel.]", 'There would have to be pre built in threading for it to fit. You are correct that you would not be able to just add a suppressor to any gun and it still be funcitonal.The threads are cut on the outside of the barrel, not the inside, so there's no restriction.
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Why are movie tickets so expensive?
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If that were the case, they would do it. The prices are pretty carefully figured out to maximize profit. If they cut the price they wouldn't get enough people to cover the lower per-ticket price, and if they raised it they wouldn't get enough extra to cover the lost people. Note that this balance point is different for different theaters, that's why ticket prices vary.
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When you look in a mirror why is left and right reversed, but not up and down?
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It isn't left-right reversed. It is front-back reversed. It *seems* like left and right flip because in order for you to normally turn yourself around, you rotate to one side or the other 180 degrees. If you were a being that normally faced the other direction by rolling yourself forward or backward 180 degrees, mirrors would appear to flip your up and down.To expand on the other answer a bit, you expect your image in the mirror to be how you would look if you walked forward and turned around. That rotation has the same effect as flipping front-back and left-right. When you see an image which has only been flipped front-back, you decide that the mirror has started with the rotated image that you expected to see and flipped it left-rightIt's not reversed in any way. If you move your left hand, the hand on the same side moves in the mirror. Text appears backwards because it is a mirror image. For example, you have "USA" on your shirt. You look in the mirror and you see "AUS" . Now look down at your shirt. The "U" is on the right, just like you see it in the mirror. When looking at a friend's shirt, it looks correct because they are reversed. Ask them to move their left hand and to you, it looks like their right hand moved. the "U" is now on your left, like it should be, though to them it's on their rightBecause you have to turn left or right to view what is reflected in the mirror. If you were to turn a back-flip to see what is being reflected in the mirror, you would perceive things as being reversed up and down. In reality, the light is being reflected back exactly on the side it came from, but since you are turned 180 degrees on the horizontal plane, the light that is coming on your left side looking at the mirror is on your right side looking at the original source. We interpret this as being reversed left to right.
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If i cut a human in half using a sword at the speed of light will i kill him instantly?
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[Everything within roughly a mile of you and your target would be leveled, and a firestorm would engulf the surrounding area. Where you stood would now be a sizable crater.]', "Since matter can't accelerate to the speed of light, let's assume the sword's just moving very close to that speed. Then the movement of the sword through the air would vaporize the target before the sword even arrives. Even in a vacuum, the heat released as the sword moves through the body would vaporize it before you got to the other side. _URL_1_", 'You, him and the city you are standing in. Hit something with something else that is travelling at near the speed of light, and atoms in both things will start fusing and fisioning. You would create an enormous atomic explosion, destroying everything in the area instantly.So, basically, you vaporize. Say in the future, we invent a space ship that travels near speed of light. If you're traveling through space and hit a particle of dust, would you vaporize?", 'It's more a matter of human biology and function. Even without oxygen, the brain can still be techincally alive which is where the term "brain dead" comes from. I *suppose* the net version is, no matter what you do, no one will ever die instantly. With in seconds, yes. But instantaneous death doesn't happen save circumstances where the body is entirely decimated . Though the landmine theory is simply an educated guess based on the fact that it isn't logical for a part of your body to still be alive if it no longer exists. So, no. You will not kill them instantly just very quickly like most other forms of violent death. As for the atoms aspect, I really don't know. I just know that it's very difficult to achieve "instant death".you'd kill him with the nuclear explosions as your blade splits the very atoms in the air. xkcd did this with a baseball.
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Why does my voice sound different (and awful) when it's recorded and I hear it replayed?
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When you normally hear your own voice you are hearing two distinct things. First, you hear the normal sound waves coming through the air, into your ear just like everyone else. Second, you are hearing the bone conduction. This is the vibration that your voice causes in your bones that gets transferred to your inner ear. The combination of these two is what you think of as your own voice. Other people only hear the first part. It sounds so awful to you because it sounds kind of like your voice, but slightly off. The familiar thing that is changed just a little is more disconcerting than a completely different voiceYou hear your voice through your jaw and skull when you speak, so it sounds different to you. Everyone else hears you the way you sound in recordings, though.While the others have it spot on, you also need to realize phone speakers and receivers actually *suck* at their jobs. Everyone sounds different on those things because they aren't built like proper sound equipment.
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How can entropy be reversed?
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The traditional answer is There is insufficient data for a meaningful answer. However, simply put: at this point it does not appear to be something we can do *universally*. Entropy is simply the universe's tendency to "settle out" with time; everything gradually settles into low-energy states where they can "jostle" the most. Open a bottle of perfume, and the perfume evaporates, eventually spreading evenly through the room - that's entropy; just thanks to the random bouncing and wobbling of the molecules that make up the perfume and the air, it will diffuse. We can cause things to adopt less entropic states by expending energy, but some of the expended energy is lost. Think of it like building sand castles; we can take diffuse, entropic sand and bind it into form, but doing so is work - hot and sweaty work, to be specific; we lose energy to heat. This is one potential way by which the universe "dies" - it's called [heat death], where the energy of the universe is too diffuse to do work, and everything simply settles to an entropic minimum. However, as that article mentions, it may not actually happen; we don't have sufficient data to say. Mind you, if it *does* happen, it won't be for googols of yearsBy putting energy into the system. If I have this cylinder of gas, I can lower the entropy by using a pistol to squish the gas together. This naturally takes energy that I have to use to power the piston. That is just the simplest conceptual example I can think of. Did you have anything specific in mind, OP?', "Across an entire closed system, it can't be reversed. This does not mean that it can't be reversed locally, though. Earth is not a closed system, but has used energy inputs from the sun to build ordered things .
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Why does the tap water at another persons house taste different than the water in your own house, even though it comes from the same source?
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Not always, maybe from different wells, or different water treatment plants. Maybe different type of plumbing in their house. PEX vs copper pipes?
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Why Does Adding CO2 To Water Change Its Taste?
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When CO2 dissolves in water, part of it actually undergoes an acid-base reaction with the water. That reaction creates a small amount of carbonic acid . Being an acid, it makes the water taste mildly sour. The taste also can vary depending on the origin of the water as well as the process of carbonationWhen u add CO2 gas to H2O, they form H2CO2 Carbonate acid. The tangy sour taste you are tasting is that. Acids are always sour. Imagine citrus acid you find in lemons and oranges.
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How do writing credits work on TV shows?
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It's the main people in the making of the show that get the "big credits" so the staring actors, director, editor, producer etc. Anyone else is just seen as regular crew members and easily be replaced, it's these bigger names that make the show what it is.
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when someone finds treasure, do they get to keep it?
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It's a big, fat it depends. Typically if you find something, you have an obligation to try to return it to its owner. Only after you do that and wait long enough does the property become legally yours. However, there are laws governing salvage and abandoned property that apply. If I go through the effort to recover something from 200 feet underwater, you can't just swoop in and take it because it was yours. Finally, many gov'ts have asserted that treasures are protected historical artifacts, and will try to claim them on that basis.This depends entirely on where in the world you are, but in most cases, the local government has some right to take whatever you find, based on the premise that it is of cultural or historic significance. In the UK, the law also depends on the size of the find, as a single coin or small item you are allowed to keep, but a horde or treasure must be declared to the state. The state then evaluates it an forcibly acquires it. The obvious flaw in this system is that the state decides what it will itself pay, so often people are severely underpaid for their finds. Further, it encourages people to lie about what they found where, which hampers academia, and also to split items up and sell them individually so as not to declare that they have found a large treasure. There are very specific salvage laws for the sea.
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How much damage does a beer, or 2, or 3, etc do to your physical health?
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In moderation? Unless you have an alcohol triggered medical issue it's gonna do damn near nil to your overall health.
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Why isn't there any war on japan. Are they simply peaceful?
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There are still attacks on Japan. In 1997, there was a terrorist attack on the Tokyo subway, which used Sarin Gas. The gas is a deadly nerve agent , and is manufactured only for use as a chemical weapon. Also, Japan, after the end of World War II, became a new country, with the old, military-run government removed. Because if it's violent past, the peacemakers decided that Japan would not have an active military, and that Japan could not declare war on anybody. Therefore Japan has had 70 years of peace since the end of WWII. However, Japan does have a self-defense force, which is essentially an military, but one which can only be used if Japan is attacked. Japan also has other problems, like it is feuding with China over some islands that they both claim belong to them. While Japan hasn't been involved in any wars recently, it still faces threats and violence, but it doesn't make the news that often, because it is usually not as 'newsworthy' as other stories, like ISIS and Ebola in Africa.
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Why are the tips of our fingernails white?
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I'm sure you 've heard about [tape over frosted glass] trick right? Your nail is actually rough on the underside, especially with bits of dead skin still attached. The part of your nail that didn't grow out is firmly "adhered" to the nailbed so it appears translucent because the hydration provided by the nailbed smooths the rough underside like the tape smooths the rough side of frosted glass. If your nails are better hydrated then they dry out slower so sometimes they might still be transparent immediately after growing out .
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how do blind people know where to find the little Braille signs?
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They don't know where to find them, they just check the most obvious locations, you may notice that the signs are at natural level in a natural location and not hidden.Aside from the answer already given, Braille is also a dying language. With the rise of screen readers , voice recognition software and other technological advancements, only a minority of blind people actually know how to read braille these days. The wiki article on braille has some numbers.
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How the "Mass Effect" concept works
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It's a made up hand-wavey sci-fi excuse to not think too hard about how your video game spaceship gets from place to place. There is no scientific explanation.
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What did Aristotle mean when he said man was a "political animal"?
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Aristotle constructs man as a fundamentally political animal as opposed to other philosophers like Hobbes or Locke who construct man as individuals who just happen to enter into a society for individual benefit. Aristotle was a realist, and since the only men who exist purely alone were either "beasts or gods", it makes no sense to construct society as a conglomeration of fundamental individuals. Like bees, we exist *only* as part of a broader social structure. What makes us more political than bees is what Aristotle calls ορισμος, translated as "definition." Humans can understand and, more importantly, describe to each other abstract concepts through the use of definition and language. This allows us to discuss things like ethics and debate the purpose/nature of our societies, something that bees cannot do. They are more akin to robots. There's *a lot* more to this, my thesis on the topic was 100 pages long, but that's a condensed two-paragraph explanation.It appears to me that he's describing our natural tendencies to establish hierarchies within social groups. This can be on a large scale, like civilization-type shit, or even within friend groups. You generally see back and forths of shifting dominance and submission between individuals, which, in my mind, is what Aristotle is describing here. Thoughts?", 'so like he points out, obviously we're what we now call a "social animal," like bees and such. but they act, from what we can tell, on instinct. whereas people have developed a theory of mind and can guess what others are doing or will do, form alliances, establish various social orders, etc.
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Why was Muammar Gaddafi such a bad person?
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Mostly the standard dictator spiel - took power in a coup , ruled undemocratically, suppressed any opposition. He distinguished himself by his particular attention to cultivating his cult of personality. He was a particular villain in the West because he identified as a socialist, opposed the US, and aligned himself with the USSR during the Cold War. The most prominent incident that brought him scorn was when he ordered the [bombing of an American airliner in 1988]. He was basically a classic dictator who was particularly antagonistic towards the USState sponsored terrorism including bombing of two airliners . Bombing of the La Belle Discothèque in Berlin. Attempted assassination to kill Crown Prince of Saudia Arabia. Cash and weapons support of multiple terrorists organizations including the IRA and the PLO. Support of armed guerilla movements not only in the Middle East but also in Africa and allegedly in Central/South America. Multiple human rights violations and programs for weapons of mass destruction. *edited La Belle numbers as I got it wrongSome say the real reason the US wanted to get rid of him, was because he was trying to replace the dollar with the gold dinar. Basically creating a gold-backed Arab economy around oil. Take this with a lot of skepticism, the sources are suspect also, he was a brutal dictator, but there are still plenty of those around, who are left alone by the West for various reasonsHe was internationally condemned as a dictator and autocrat whose authoritarian administration violated the human rights of Libyan citizens and supported irredentist movements, tribal warfare, and terrorism in many other nations.
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Why does cancer cause so much pain, and which types are the most painful?
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My guess would be Liver or Kidney cancer would be the most painful do to the fact that you could not take pain meds. If the meds dont get filtered out correctly they can not be proscribed.
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With what technology do scientists find new planets and explore deep space?
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We are not actually observing the planets themselves, they are too far away for our telescopes. What we are observing is how bright the stars are. If a star gets dimmer every now and then, at the same interval, again and again and again, then obviously something is passing in front of it at regular intervals.
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How are traffic light timings decided? Is there a kind of formula for determining timings?
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The short answer is yes. For individual signals or small networks, the timing can be figured by hand, but for larger networks, civil/traffic engineers use models and even purpose built computer software to link every light in a massive network together to try to prevent jams and keep traffic flowing. Contrary to what feels right, the longer a "cycle" is, the more efficient an intersection tends to beThere are also areas where there are sensors. Some lights will not change unless you are a certain closeness. But obviously there are also areas where the lights are on timers.
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things that glow in the dark
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First, let's think of [Newton's cradle], consisting entirely of two balls. One ball falls, transfer that energy to a second ball, which rises. It eventually falls too, and transfer that energy back to the first ball. The key concept here is that energy is conserved. What happens when you shine light on a material? There is a phenomenon called [fluorescence]. Basically, a photon hits an electron , and transfers all that energy to that electron. This electron is now excited - when it eventually relaxes , it will emit a photon. So basically light comes, excites electron, electron relaxes, light is emitted. There is a related phenomenon called [phosphorescence]. It's almost the same as fluorescence - however, the electron stays excited for a _long_ time. In our Newton's cradle analogy, it's like when someone catches the second ball after it has received that energy, and holds it there. So we wait, say, 30 minutes, before we release that ball, and the energy transfer continues as described before. This is what happens with glow in the dark materials - light comes in, excites an electron, but the electron gets trapped in the excited state. It takes them a long time - over minutes or hours - before they relax and emit light. This is why, when you turn off the light, the glow in the dark material glows. It's also the reason the glow fades over time unless you "recharge" it. There are actually many different colours of glow in the dark material, and it depends on the type of "activator" used. Copper is used for the green colour, and it's most common because it's long lasting. Edit: Formatting.
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Why does plastic get hot when you bend it really fast?
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Essentially: Hot means heat. Heat is energy. The energy comes from forcing mechanical energy into the plastic itself.
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How is it that something physical happens in your dream and then you wake up and can still feel the sensation?
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You don't ever directly experience sensation , you only experience *perception* — the mental state *caused* by sensation. But the brain can also generate false perceptions. That is, it can experience mental states usually experienced in response to sensation, even without the sensation. Dreaming is the most common condition under which this occurs, but hallucinogenic drugs or mental illness can also cause it.
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Redditors, what's the difference of Best, Top, and Hot?
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"Top" has the most up votes. "Best" takes into account the ratio of up to down votes, how quickly they get the votes, etc. "Hot" are those which are getting votes and responses regardless of if it is highly voted overall. "Hot" would tend to include highly controversial comments which the former options may notBest - Highest upvoted comment based on an equation that adjusts for votes received quickly, the difference between "up" and "down" and a bunch of other stuff. Top - Highest scoring comment Hot - Highest scoring comment, adjusted for recency of votes. _ Now let me ask a question - You addressed your question to "Redditors" on Reddit who else was going to answer your question? Do you go to Subway and say "Sandwich Maker, I desire a Ham and Turkey with Mayo"?
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How do they plan and simulate fireworks?
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I can speak to how it's done by professional display companies. Specialized software such as [Finale] allows you to set your firing positions or create a rendering of the structure you're shooting from. The software has a wide variety of preloaded fireworks and effects, and you can basically drag-and-drop them. Well it's a bit more complicated than that, but that's it in a nutshell. It also does its rendering much like other pre-viz software so you can get a basic idea of how the show will look. Scroll to the bottom of the page I linked to for a series of how-to videos. The show is laid out in a "timeline", and you can set cues within this timeline which determine what goes off and when. This is also where music can be imported and cues can be timed based on that.
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What would happen immediately if i were to hold something that was incredibly radioactive
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You 'd end up like this guy: _URL_0_ > Over the next nine days Slotin suffered an "agonizing sequence of radiation-induced traumas" including severe diarrhea, reduced urine output, swollen hands, erythema, "massive blisters on his hands and forearms", intestinal paralysis, gangrene and ultimately "a total disintegration of bodily functions"', "Burns, nerve damage, providing you haven't ingested a large amount of alcohol or a experimental radiation drug. You gonna die. Anything above 6gy of exposure means they can't save you. Hit the 25gy+ mark and your dead in about an hour.
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Scientific Theory vs. layman's idea of theory.
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Scientific concept of a theory: "Based on our testing and observations we believe this is the way things generally work." Layman's concept of a theory: "All that science and you guys only have a *guess*?"', "* Scientific Theory: An idea supported by a great base of corroborating evidence. This is because in science, aside from the most basic facts, we can never say with 100% accuracy that we are absolutely correct, or that there isn't anything more to a problem . * Layman's Idea of Theory: A guess The best retort to someone like Sarah Palin shooting down evolution as a theory is to remind her that gravity is only a theory, too.
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What is the strange tingly feeling I get when I consciously relax or 'reverse-flex' my legs?
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I can also do this but have never been able to describe it and thought I was alone. I can seem to do it with my entire body.
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What keeps other countries from "bringing the war" to US soil?
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"Force projection", or being able to attack targets a long way from your own country, is not easy. If you want to attack by air military aircraft don't tend to have very long range, especially fighters. The options are to have a conveniently located airbase, have an aircraft carrier, or run a complicated air-to-air refuelling operation. Most countries can't do any of those. Oh, and you also have to get past the US Air Force. If you want to attack with missiles, most missiles don't have long enough range, and the ones that do are considered reserved for nukes and ALSO not many countries have them. You don't want the USA thinking you're launching a nuke when you aren't. If you want to attack by sea, you need a warship or a submarine capable of crossing oceans and operating for a long time. It's yet another thing a lot of countries don't have - such warships are more expensive and harder to make than a ship that just stays close to your own shoreline. Oh, and you also have to get past the US Navy. And if you want to attack by land, you 've got to be Canada or Mexico. Most countries aren't Canada or Mexico.Look at a map. You see those two huge blue things in between the US and everyone else? Turns out, they're a pretty great defense against an invasion.
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The differences between cow's milk, soy milk, and almond milk.
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Well almond milk is blended almonds in water and soy milk is blended soy beans in water. I'm not too familiar with cow's milk but I assume it is blended cow and water", 'Milk: Liquid extracted from the teets of cow Soy Milk: Soy beans mixed with water and ground in a blender in to a very fine mixture, then all of the larger pieces of soy bean skin strained out leaving a white liquid of suspended soy bean particles Almond Milk: Same as soy milk, but with a bit of sugar added for flavor', "Almond milk is mostly carbohydrates - not much protein or fat. Soy milk has some fat - mostly polyunsaturated, some monounsaturated, and a tiny bit saturated. It also has some protein. Cow milk has double the amount of fat as soy milk - mostly saturated and monounsaturated, tiny amount polyunsaturated. It has the same amount of protein as Soy milk. I would say that, if you can digest it, cow's milk is the best. It has the most complete protein . This means that it has greater amounts of the amino acids that we need. It's fat content concerns some people. However, the omega 3:6 ratio, especially of milk produced by grass-eating cows, is higher than the ratio found on soy milk. A major problem in modern diet is that we eat far more omega 6:3 that we should, so this is a good thing. Lactose in cow's milk is only digestible by people who have a genetic mutation that is common in Europe, India, Middle East/North Africa and other peoples who were traditionally pastoral.
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Why do some movies and games come out later in certain parts of the world than others?
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If you're talking about theatrical releases, sometimes, even if theater owners are pretty sure a movie is going to be a hit, they like to wait until it is in fact a hit so they can use it in their advertising: "The Number 1 movie in America" etc. It also helps to build up buzz. This is why there used to be "road shows," where a movie would open in one city—usually a big city like New York—first, then another city, then another, so nationally syndicated critics could praise it up and down and get people's appetites good and whetted by the time in opened in the rest of the country. As for Blurays and web DLs, the same marketing psychology may be at work. Piracy must not be taking *that* big a bite, because the "let it out a little at a time" approach still seems popular. Also, because of big price differentials companies want to release it in the expensive countries first, so people there can get their fill before the disc is released in the low-price countries, where the temptation to pirate into the higher priced countries is greater.
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Why does turning the batteries (in a remote control for instance) provide a little bit more energy?
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The battery contacts get corroded by a thin film of oxide, and moving the battery scrapes the oxide clear or moves to a spot with less oxide.It doesnt add more energy. The voltage of the batteries begins to sag both under load and when being depleted. Once the voltage drops to a certain point, the device is unable to operate and shuts off. The voltage drop from useage only happens when the battery is in an active circuit, so when it's powered on, it may take a second for the voltage to drop to the point that it can no longer power the device.
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why is a tomato considered a fruit?
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Any plant that has seeds is a fruit. “Vegetable” is strictly a culinary term, to distinguish sweet fruits like cherries from savory fruits like tomatoes.
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Why does a hovering helicopter rotate with the Earth?
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When starting off on the ground the helicopter already has inertia, going around the center of the Earth. After lifting off, that inertia can't magically go away since that's a violation of conservation of momentum. This is also true with rockets. NASA prefers to launch rockets in the direction of the planet's rotation, since it can use the planets spinning momentum to get into orbit for slightly less fuel. If you launch a rocket into orbit going the opposite direction of earth's rotation, it costs more fuel. - - - EDIT: Wow, most of the other explanations offered here are terrible. No, this has nothing to do with air. This effect would happen with a rocket powered vessel lifting off of the moon's surface too. Clearly atmospheres aren't required for this. Here's another way to explain conservation of momentum: Imagine Earth isn't round, but instead is a flat disc shaped world. Now imagine a train is moving at 60 kph across the surface, and on top of the train is a helicopter. As soon as the helicopter lifts off of the train, it will continue to move at 60 kps with the train because the momentum/energy put in the helicopter by the train's motion won't go away. The energy the moving train put into it cannot be destroyed . To suggest the helicopter is stationary relative to the ground as soon as it stop touching the train implies energy can be destroyed. Now replace the train with the ground of a round rotating Earth… same exact thing.
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Why do Television News Programs get locations completely wrong on maps so often?
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In the past you had a newspaper once per day. The journalists supplied the stories, editors checked them for editorial issues, content checkers would fact check them and when the newspaper went to the printer it was checked and double checked. Then some people in the publishing company went from "If we get rid of the content checkers who don't generate any contents anyway, we can save ourselves money on that." and the content checking was then done by people who were supposed to do editorial checks. And then the editorial checks got cut down because the stories coming from the journalists were good enough. So, nobody is checking the content before publishing, nobody is checking the facts before publishing. And that is how you end up with embarrassing mistakes like Brussels ending up in over Paris.
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how does sound travel on the ISS
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The air inside the ISS is travelling right along with them and isn't accelerating. It's no different from how you're able to talk normally on a plane despite going ~2/3 the speed of sound. Or why when you toss a ball up in a vehicle it doesn't fly to the back.The earth is also rapidly rotating and hurling through space at millions of miles per hour but we have no trouble speaking down here on our organic space station. All velocities are relative and the air on board the ISS is stationary relative to the ISS and its inhabitants
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How come a lot of styles 50 or so years ago dated very well, yet a lot of styles from only 20 or 30 years ago seem to have aged horribly?
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Actually, that seems to be the standard cycle. From my experience. In the 70s retro-style/fashion from the 30s was "in".Today, it's from the 60s. In the 70s and 80s, 60s style/fashion just looked ridiculous. Give it 20 or 30 years, and we'll be reliving the 90s. Get your flannel shirts ready!
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How did the Soviets make their submarines quieter than American submarines?
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Perhaps I'm missing something, but Soviet subs were pretty much always noisier than US ones if you compare like with like. The latest Red Navy ones were usually about as stealthy as the previous generation of USN boats. Unless you're comparing diesel electric subs with nuclear ones, which isn't really a valid comparison. What specifically do you mean? Do you have specific comparisons as examples?
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Why can i vividly remember something from 10 years ago but cant remember what I ate a week ago?
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Our brain has two places where memories are stored - one is temporary and another is permanent. So everyday things like the food you eat, dress you wear,etc. are stored in the temporary compartment. Other things that happen during the day - like you getting your first car,etc. too are stored in this unit. When you sleep at night, our brain sifts through the temporary folder and finds out things that are important and need to go to the permanent folder. So the food you eat is trivial, but your first car is important and gets into the permanent compartment.think of your memory like a muscle in your body--the more you use it, the stronger it gets. what you remember 10 years ago is probably something very important to you; you probably think about it often. but the dinner you had a week ago? that's probably something that isn't very important, so you don't think about it much and that memory dies.
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Why do objects turn bright red when very hot?
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All objects emit some radiation, as objects get hotter, the frequency of the radiation gets higher. Objects that are around room temperature emit radiation that has a lower frequency than we can see. As the objects get hotter, the frequency goes up until we can see it as red, then yellow, all the way up to blue. This might lead you to think that eventually really hot objects will emit only ultraviolet radiation that we can't see. However, objects don't emit just one frequency of radiation, they emit an entire range. The strongest frequency might be red, purple, or in the ultraviolet range, but there are always other frequencies emitted, most below the strongest frequency. So even if the strongest frequency is above our visible range, frequencies in our visible range are still emitted, so an object will never "disappear" because it's too hotThe valence electrons get excited and jump into a new orbital . The electron then releases energy gained by the heat and drops down to its original orbital, and simultaneously emits light> Black-body radiation becomes a visible glow of light if the temperature of the object is high enough. The Draper point is the temperature at which all solids glow a dim red, about 798 K. At 1000 K, a small opening in the wall of a large uniformly heated opaque-walled cavity , viewed from outside, looks red; at 6000 K, it looks white. No matter how the oven is constructed, or of what material, as long as it is built so that almost all light entering is absorbed by its walls, it will contain a good approximation to black-body radiation. The spectrum, and therefore color, of the light that comes out will be a function of the cavity temperature alone. A graph of the amount of energy inside the oven per unit volume and per unit frequency interval plotted versus frequency, is called the black-body curve. Different curves are obtained by varying the temperature. [Link]Wow this post is fairly new and its already got sciencey replies. I feel like I should know more to post on reddit :(
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How is it that approaching rain has a smell? What is it that we're smelling an hour before a storm arrives?
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My old organic chemistry professor explained the smell of rain coming in class once. It's also on his [website]: > People often think that they can smell rain coming before it actually starts to rain. Strange, as we would be in rough shape if we actually could smell water as it makes up most of our bodies . > There is a simple explination [sic] that seems strange at first. Organic compounds are much more soluble in wet air than dry and the world is full of molds that produce organic compounds with aromas. Typically gust of moist air preceed [sic] the onset of a rain storm and this wet air brings with it the smell of the molds. TL;DR Rain-a-comin' = more humidity. Chemicals we can smell are dissolved in the water in the air, such as molds. More humidity, therefore more smelly chemicals. Hence, rain smell!
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How does a person that never drinks untreated water not become ill after swimming in a lake or ocean?
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You are absolutely right to think that we ought to pick up diseases. The reason we don't is because the authorities go to great lengths to ensure that the water we swim in is kept relatively free of nasty stuff. It's [not recommended] to swim in water which is not properly managed and monitored.Your body has white blood cells, or antibodies, which help defend against microorganisms. This is called an immune system. Any bacteria picked up while swimming will be destroyed by it. You only get sick if the strain is unfamiliar to your antibodies.You get germs from a lot more sources than just drinking water, so it's not like you are never exposed to bacteria if you only drink untreated water.
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What is so appealing about Doctor Who?
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I hated the first couple random episodes I watched. Totally didn't get it or the people who like it. Yet now I'm a great fan. I got sucked into that universe immediately after watching the 2005 first episode with Rose and the ninth doctor. It may have been a more accessible entry point because the doctor, the companion and I were new together or simply because that doctor was not so campy and over the top. Dr Who can be very weird and hard to get into, but it is also a 'Hotel California' state of mind that you can never really leave. Dr Who fans are Dr Who fans forever. The main thing I love is that the superhero is a doctor who helps people and other creatures feel better and we all win when nobody dies. Yeah. It soothes my inner three year old.A few things: * This is a show with a long history. The first episode was shown nearly 50 years ago, and so it has picked up a lot of fans along the way* The show was cancelled for a while but then "rebooted" in 2005 with better visual effects . In other words, the effects used to be much more basic* It's also a show with tradition - the Doctor has a companion to accompany him; he keeps defeating his enemies the Daleks and the Cybermen, but they keep coming back; there's the TARDIS, his vehicle; and the stories are usually about overcoming evil with good, doing the right thing, and the importance of things like family, love and teamwork; and there is a huge backstory too. This can have the effect of making the show look formulaic. Because of this, you really need to watch more than one episode to get a feel for it. I recommend you watch a whole series and see what you think of it then.
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Why does some tap water have so many small air bubbles that it looks like its actually white?
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I think OP asks the milky white type of water that takes some time to clear up. That's caused by the pressure in the main pipes. Water needs pressure so it can travel from the reservoir to your home. Increasing pressure makes air more soluble and it mixes in easily. Once it is near your faucet, the water loses pressure and the dissolved air separates, leading to super small bubbles that create a milky white appearance as these bubbles also disperse light .As MarkHFX said, the bubbles are caused by an aerator. I think this is normally for efficiency; the nice wide flow of water allows you to wet your hands easily, but the bubble mixture means that the total amount of water flow is still not too highThe screen in the facets cap is an aerator. It breaks the water stream up which catches air in the stream and pushes it under the water. Some aerators make a lot of fizz others a few bubbles
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Why does Kim Jung Un wear a western suit?
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They don't really see suits as "innately western," they also use architecture designs from the west and even the Android operating system . Because it works fine. There's also evidence he himself isn't anti-west, seeing as how he went to school in Switzerland, loves US basketball to the point of inviting Dennis Rodman. It's an act put on for his peeps, and the messages largely target the leadership & political ideas of the west anyway, not really their products or stuff.
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3D that doesn't require glasses, like the Nintendo 3DS
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It works because the LCD screen on a 3DS is not your conventional LCD. It uses a technique that basically splits the images sent to each eye based on the angle the eye is to the display. You know those funky strips that changes the picture when you move it? It's a similar effect, only your brain interprets the result as 3D even though it isn't in the sense of everyday objects that you can hold.
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How was google earth created/made, and how how did google complete it so quickly?
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It was funded by the CIA and made using satellite imagery, aerial photography and GIS, or geographic information systems. This project had access to all the images already taken and just compiled them into a single globe. Also if you are asking about street view, Google is an international company and has street view cars all over the world. Look [here] and [also here]
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Why do our tastes change over time?
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Very likely our tastes change for the same reason everything else about us changes: We grow, we have new experiences, we learn new things. Most of the cells in our bodies are less than seven years old, and our brains rewire pathways every time you learn something new or have an emotional experience. So there is every reason to think that your tastes will change over time. *Example: You eat chocolate covered marischino cherries because they taste amazing; but one night you eat an entire box of them, get sick, and violently throw up, leaving the taste of marischino and bile in your mouth. After that, cherries just don't seem as good as they used to.*", 'I believe as a child, your senses are much stronger then they are as an adult. I remember hating going to my grandmas house as a kid, because everything she cooked had garlic in it and I hated - absolutely hated - the smell of garlic, at the same time I couldn't sit next to my mother for holiday meals because she put mint jelly on everything, again the smell was excruciating. Now, as an adult, I love garlic on everything, and while I still think mint jelly is gross , I am not so revolted by it. Foods I love now that I hated then: onions, peppers, broccoli - your 'strong\' or \'bitter\' flavored foods Foods I don't like now that I loved then: Beets, cauliflower, bananas - your 'sweeter\' foods I have a distinct memory, where my babysitter was telling me that I would grow to like broccoli one day, and my ~8 year old mind clearly said "I'll never grow to like broccoli". 20 years later, it's one of my favorite vegetables
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What happens to a spider after it gets sucked up the vacuum cleaner?
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Already answered this one, then you deleted and posted again? Original answer:"Suffocation in the dust I suppose but if it survives the thrill ride of the vacuum hose then I would guess a death by starvation."
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Why do I get irritable when I'm hungry?
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Because the animal inside you activates and you engage in "Predator" mode, doing everything in order to secure food and guarantee the survival of your speciesLow blood sugar. Your body has burned through the glucose it has on store and one of the side effects of [hypoglycemia] is irritability.Because when you're full, it's easier to share.
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Why do we squint to focus on things far away?
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Our vision basically comes from light passing through the pupil and focusing on the retina, which is the back of the eye. So when you squint, you are changing the shape of your eye and decreasing the amount of light that will enter your pupil. The limited amount of rays make it more likely that they will become more easily focused. The smaller aperture creates greater focal depth. Same is true for a camera lens.
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Why deep 'cones/holes' are created in the centre of a whirlpool
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While the other comment makes sense I think this is more ELI5. Remember the centripetal force from highschool physics? The rotation of the water causes the water to want to move more to the outside, causing a water deficit in the center. You probably remember from highschool that in order to keep something in a circle spinning you need to keep it pulled towards the center with a Force equal to mV^2/R. In the spinning water this force is absent.
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How come people might stutter when they talk, but you don't stutter when you sing a song?
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Music therapist here. It's the same reason why people with traumatic brain injuries who loose all ability to speak can sometimes still sing. The speech center of the brain is located in a very small part of the left hemisphere. When we are speaking, that part of the brain lights up. But music is associated with many parts of the brain, in the left and right hemisphere. Essentially, more of your brain is working. I'd advise everyone to check out the story of Congresswoman Gabby Gifford who lost her ability to speak after a gunshot to the head. Over the course of many months, and work with a speech pathologist and a music therapist, she regained her ability to speak through singing. Now the opposite side of her brain lights up when she speaks. #musictherapytransplant
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