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How does sharing a facebook post help the person who posted it? | Er people like to think that others care about the stuff that they post. The fact that people like/share it shows that I guess? It's validation from others and adds to their self-esteem. Very toxic in nature though, when people rely on it to fuel their self confidence. IMO I find it really really pointless and sometime... |
how do companies like Amazon buy consumer products to resell and still make profit? | They most likely make a deal with say Sony to sell a TV. We'll say the TV only really costs Sony $500/unit to produce. Sony will say that they will sell that TV to Best Buy for $800/unit. Best Buy retails that TV for $1,200/unit. Best Buy gets that price from Sony because they will tell Sony that each quarter they are ... |
why can't I donate blood if I had hepatitis B | While this happened a long time ago, and in all likelihood, you are now free of Hepatitis B, blood banks don't want to take the risk that they may infect someone else with hepatitis B. The nature of viruses is that they are very hardy. Just because you don't have symptoms doesn't mean that you aren't still infected. If... |
What's the difference between regular gas and premium gas? | The difference is the octane ratings. Premium gas has a higher octane rating. The higher the octane rating the less likely the fuel is to ignite under heat and pressure. When your engine is running very hot and hard sometimes the fuel ignites before the spark lights, this is very bad because the fuel is burning when th... |
How does what we eat and drink eventually become so much different stuff like skin, brain cells, hormones etc.? Are our fingernails really just remnants of dinners gone by? | What we eat is essentially building blocks for our body. When we digest the food, our body breaks the pieces apart into individual blocks. Our body then reassembles the building blocks in a different order to create the parts it needs. Some of the food is used as energy for this reassembly to occur. But yes, you are es... |
What is the no true scotsman theory? | It's where you make a statement, and someone finds an exception to what you just said, and so you come up with a non-reason why the exception doesn't count. [Wikipedia] gives this example: Person A: "No Scotsman puts sugar on his porridge." Person B: "But my uncle Angus likes sugar with his porridge." Person A: "Ah yes... |
Why doesn't the ocean's water leak out the bottom and into the earth's crust/mantle? The ocean bottom can't be completely free of fissures, can it? | * the water doesn't have anywhere to go. There aren't gaping holes for stuff to fall into. Any holes there are has stuff coming out , not stuff going in.* any water that does actually make it to a hole gets turned to steam pretty quickly , and starts going right back up.* rock is more dense than water. That doesn't jus... |
Why are my USA made Craftsman tools better than my neighbors China made Craftsman tools? | Because of higher quality standards and price. But if you are willing to pay same price for the Chinese counterparts, they'll be better.But the first thing we think about Chinese stuff is that it got to be less expensive and that is where the problem stands.we go so cheap that the thing aren't really worth buying. |
Why can diesel engines not rev as highly as petrol engines? | In a petrol engine, the fuel is designed to ignite smoothly and burn in a controlled manner. This causes even, smooth heating in the combustion chamber, and produces a smooth force on the piston. In a diesel engine, the fuel ignites spontaneously and explodes as soon as it is injected. This explosion causes a shock wav... |
How is it that rich kids in can get into the best and presumably most exclusive (e.g. Ivy League) colleges, despite having average or poor grades in high school? | Give an example of a rich kid getting into an Ivy League with poor High School grades I think you will be hard pressed to find one. Sounds like you are trying to say that rich people don't have to have good grades to get into college, which is a not true generalization. That being said, many private schools take a few ... |
how do two brown haired people create a blonde baby? | Could be that you carry the gene, as does the father. Genes can be determined using Punnett squares, specific gene combinations are given letters, either capital or lowercase. Capital letters denote a dominant trait that will mask a recessive trait, marked with a lowercase letter. In this example I’ll say that hair col... |
How come you can put your finger in a bubble if your finger is wet, but not if it is dry? | Water is made up of many tiny molecules.These molecules are too small to be seen with our unaided eyes. One drop of water is made up of thousands of water molecules. These molecules are attracted to each other and they stick together creating a force called surface tension. Surface tension is one of water’s most import... |
Second Quality Idealism (Epistemology, Philosophy) | I'm not a philosopher, but maybe I can help. I'm not sure about Descartes, but with regards to Kant, could you be talking about his Transcendental Idealism with the Secondary Quality Analogy? I found this article, maybe it will be of use: _URL_0_ Hope this helps!-Nibblelard |
How do you just lose a Boeing 777? | Satellites and radar are notoriously poor at seeing under the surface of the ocean. Which is where that jet undoubtably is, unless a James Bond villain has it in his secret volcano lair. Plus there's a pretty large area to cover. There are special radars that can be deployed by ship , but they still have to pass near t... |
In chess, why do players resign when it seems like there is alot more of the game to play? Why not play to the end in case the opponent makes a mistake? | Either you're in a situation where it would be an insult to imagine your opponent making the kind of mistake that would result in a draw, or you're in a situation where you can salvage a little bit of grace by recognizing an inescapable trap before it's completely obvious. It's saying, *I wasn't good enough to avoid it... |
How and when did capital letters become associated with screaming and loudness? | Pretty sure that's inherited from comic books. The bigger the text, the louder the character is speaking. _URL_0_ |
Why are remote lock controls so common in cars, but not on buildings? | well there are electronic locks now, some that can unlock by cell phone/wifi. some use bluetooth in close proximity. not sure why its taken so long though |
Why do voters have to register their party affiliation, and what does that mean? | IIRC: you only have to register your party affiliation if you want to vote in the primary. If you want to vote in the actual presidential election, you are not required to do this. The primary itself wants only their own people to vote in the primary, so people from across the political aisle won't be involved in putti... |
If there is a past image of our world being projected through space, could we use technology to intercept those images and see what our world looked like millions of years ago? | The only way we could see an image of the past earth would be if it were reflected back to us. If there was some gigantic mirror out in space then we could look at it to see what the Earth looked like in the distant past. But, for many reasons, this isn't practical. But, we can't directly catch up with the image of our... |
Why do far Eastern people generally have thin eyes? As in the genetic reason if there is one. | I have read it is thoughts be an adaptation to extreme cold. Eskimo use snow goggles that have no lenses but have thin slits to prevent snow blindness similar to squinting all the time. Also, Asians have the epicanthic fold, which is like an extra eyelid over to top one, possibly adding some insulation from cold or mak... |
Can someone explain the Story of Classic Doctor Who and the history of the Great Time War? | The time war is not explained during the classic series. It was something that happened between the classic series and the new one, and has only been elaborated on in brief mentions and a flashback or two. There's been a lot of speculation that this will be the subject of this year's Christmas special, which is rumoure... |
Why do people upload torrents? | On private trackers it's important to seed as much as, or more than, you download, both for the community contribution and to simply be allowed to continue using that tracker. On public trackers it's probably either a sense of community, or people just don't realize that they're also seeding when they finish a download... |
Why do electronics get ruined by water? | Non purified water is a wonderful conductor of electricity. electricity will follow the path of least resistance. In devices electricity is only supposed to go where it is designed to go. the water lets the electricity go places it shouldnt and the magic smoke escapesThe water basically creates circuits around the circ... |
Why can't recovering drug addicts have alcohol? | Some recovering drug addicts do drink alcohol without abusing it. Though, the statistics seem to say that most recovering addicts cannot drink alcohol without also abusing it. Most recovery programs teach that if you are an addict to once substance, you have the increased likelihood to abuse other addictive substances.... |
How/Why does the NBA's poison pill contract, like the one offered by Houston to Asik and by Toronto to Fields, work? | Some teams cannot go over the cap or wish not to hurt themselves in the long run with a contract that is "poisoned". Using Asik's example, his contract I believe is made to go 5m/5m/15m in \'13, \'14, and \'15. But when an opposing team offers this kind of contract to a restricted free agent, it is counted evenly acros... |
Yeti Coolers in Southern Culture | It's not really an explainable thing. It is just like any other luxury item. There may be better cheaper options but people want the brand. It is like buying a store brand cereal vs a name brand cereal. There really is no difference and the taste is virtually identical but people have an idea in there head that the nam... |
why there is so much "US Only" content on the internet | You mean TV shows, like how we can't get on the Daily Show YouTube channel in the UK? It's largely because once you 've made your programme in your native country, you can then sell the broadcast rights to channels in other countries. When you 've got a show to sell, the price will be much higher if you can go to the n... |
Where does the energy for the rotation of the earth come from? | Gravity and conservation of angular momentum. The planets and the solar system all started out as a big ball of gas/dust. As this ball collapsed inwards due to gravity, it gained rotation. The more it collapses in, the more the rotation increases to conserve angular momentum. The energy for this increased rotation come... |
How the hell does gravity pull things through a vacuum? | It doesn't pull, exactly. It may be easier to think of space as tablecloth pulled taut; if you put something on it, it makes a dent. The "dent" is the deformation of space by the mass of the object. This deformation literally bends space and results in the object still going in a straight line that has been deformed by... |
Why do my joints crack and click during random movements? | Your joints or ligaments are filled with fluid and when you move it can create a partial vacuum. It expands and then rapidly collapses, creating a popping sound. Reduce the amount? Don't crack your knuckles. But there's no evidence that this can lead to arthritis or any other harm. |
Why are 'geniuses' always good at math? | It honestly depends how you view geniuses. If like a lot of people you think geniuses dont simply have to be very smart and have a high IQ. For example if you think people can be lyrical geniuses or comedic geniuses etc. Than they likely wont be good at math. If you are only talking about smart people they are likely g... |
What would happen if the United States stopped paying toward the national debt? | The US defaults on its debt. Several nations with abysmal financial systems have done this in recent years. If the US government defaulted and needed to borrow money in the future it would have to pay a significantly higher interest rate, since creditors would no longer see the debt as highly secure. The US pays a real... |
Why is Russia attacking ISIS a bad thing? Why are not more countries fighting it? | One of the biggest issues is its approach. IS is one of three issues in Syria currently. On one side you have Assad's regime, which Russia supports. On the other, you have the rebels fighting to overthrow Assad's regime, which America supports. This is the main issue between Russia and America. America sees the Assad r... |
Why is the standard for songs 3.5-4 minutes? | Because of vinyl. When records were the standard for recorded music, the standard size for a record of a single was just large enough for, at most, four minutes of audio. To make the records much larger would have made them more costly and thus the music industry would not have been able to sell as many due to increase... |
How do cops arrest one armed people? | *The usual method is to cuff the existing hand to the rear, and then put the other cuff through the prisoner's belt. If they don't have a belt, it's preferable to use a belly chain. In an extreme situation where you needed to immobilize someone briefly, you could cuff the existing wrist to the prisoner's ankle.* ^Sourc... |
Why is self-plagiarism a concept (outside of academia)? | The author might not own their own work. If King had written those words in an essay and sold or given publication rights to a magazine, it would be self-plagiarization. Also, the audience generally has the right to know whether they are hearing an original work. A lot depends on what a reasonable expectation of origin... |
When the Reserve Bank 'makes' money, why does it give it to the banks, and not me? | The Federal Reserve creates money by purchasing things known as Treasury bonds. They aren't just handing it out to banks. |
Why does a lower value currency have an advantage in international trade? | When you export goods, you usually make the people buying your goods pay you in your domestic currency. If I'm an American company, I want U.S. dollars for my wares; I don't want you to pay me in a foreign currency. This means that if the value of the U.S. dollar goes up, it becomes more expensive for people abroad to ... |
How animals seems to have the sense from birth that fire is bad but humans often have to get burned before realising? | Humans have made a sort of evolutionary tradeoff: we are born with our brains much less-thoroughly developed compared to their adult state than other animals, with the result that we are more adaptable, but must learn all sorts of things that most animals are born knowing, such as how to walkRegrettably, my cat tried t... |
Quantum Computing and Quantum Mechanics | "Quantum" just refers to the idea that you can break up any quantity into small bits, but no smaller. So a "quantum" of light is called a photon - you can't have half a photon. Quantum mechanics is just the study of physics when you're dealing with individual quantities like this. As for quantum computing, it deals wit... |
EL5 What exactly is meditation, how does it work, and what are the benefits of it? | Meditation, as a broad topic, simply refers to any kind of focused thought. This can be anything from thinking deeply and critically about something you have learned or experienced to religious reflection to striving for complete absence of conscious thought. As for the benefits of such practices, in many ways you can ... |
Why do we say "cold doesnt exist - its the absence of heat"? Can I say it backwards? "Heat is the absence of cold" | Heat is a form of energy. Cold is nothing, a lack of energy. You can supply energy to something, but you can't supply a lack of energy--you can only draw energy away to another place. The concepts aren't arbitrary; energy is something measurable that follows physical rules, just like matter.It's linked to movement. Hea... |
Who are the "famous" redditors, and why are they famous? | They have a LOT of Karma, and normally make good comments. They appear everywhere and they're normally at the top of the comments on the top posts on the front page. And as we all know, bitches dig karma = Famous. |
Why do we get "sand" in the corners of our eyes when we sleep? And why do we not get it during the day when we're awake? | The "sand" is actually dried tears. That is, tears are similar to salt water -- liquid with salts in them. Overnight, when the tears at the edges of your eyes dry, the salt is left behind as "sand"To expand on what above said, the reason it doesn't happen we are awake is because we blink which spreads the "tears" aroun... |
Does my breastmilk have healthier properties if I eat healthier food? | Regarding healthy and unhealthy fats:generally speaking: the membranes of your cells always feflect the stuff you eat. Of course the body has its own fattyacid metabolism and can contribute here. but regarding the fats the general rule applies: you are what you eat.On the other hand: the milk you produce contains still... |
What is a superdelegate? | A superdelegate is a high-ranking official of either the Democratic or the Republican party who is automatically seated to their respective conventions without having to be elected to participate. Usually, these are current or former holders of high-office or high-ranking party officials. In the context of the presiden... |
If you jumped in a giant hole in the earth that was deep enough to reach the other side of the planet, what would happen to you? | Let's say the earth is cold and there is no wind resistance that can heat you up. Also the earth is not spinning, this would result in you ricocheting of the walls. You would accellerate all the way to the center of the earth, there you will be traveling at your fastest speed. When you are past the center you will slow... |
what is "Tilt table test" | When people stand up, their blood pressure often goes down . When this happens, in most people your body senses the drop in pressure and compensates by increasing your heart rate and constricting your blood vessels using whats called your autonomic nervous system. If people have trouble with this system, or can't compe... |
When a woman gets pregnant, the present "physiological status" of the parents affect the baby? [read the text] | If the damage doesn't affect either parent's DNA or the baby in the womb damage to the parents won't affect the baby. For example if your left leg is blown off in an explosion your genes still have the code to grow a left leg - it's just not there anymore. When you have a child, they will grow a left leg like normal ev... |
Why do bubbles appear at the heated area of a boiling kettle? | All matter can have three states: solid, liquid, and gas. Normally we see water as a liquid. When water is heated above 100 degrees C , it becomes a gas. This requires a lot of energy to turn the liquid into a gas . Energy comes in many different forms. The one that we care about is thermal energy, which in layman's te... |
What is the evolutionary benefit or reason for the Tyrannosaurus' small arms? How did it succeed as a predator with this shortcoming? | It's very unusual for a body part to evolve away completely. All land vertebrates are tetrapods - this means they have four limbs and a head. The only vertebrate I'm aware of to have completely broken that is the snake - other than that, everything has four limbs . So in all likelihood, the evolutionary benefit for the... |
Why Operating Systems are architecture specific (ex. X86 , ARM) but applications are not. | Applications are architecture specific. It's just that you mostly use AMD64 CPUs with fitting OS and then run x86 applications. Like the name suggests, x86_64 is just an extension of x86 and x86_64 is backwards compatible. You just can't mix both in one application. That's why your Windows has a System32 directory and ... |
How did we discover math? | Math is so pure and simple, facts are facts and concrete rules define all the relationships. Only Barbie thinks "Math is Hard", but her head is full of hair. Counting started before written history, systematic numbers were defined by the Sumerians, number place was invented by the Babylonians. More kinds of math were i... |
Why is tap dancing so ubiquitous in old musicals? | Movies were still close to their live theater roots at that time, a genre where microphones could not be used. To entertain a large theater, you spoke loudly, sang loudly, and when possible, danced loudly.They were made by people from an era where dancing was public performance. Half the actors in old musicals are Broa... |
when you hyperventilate, why do your hands and face (and other parts) go numb? | Well, I'm no doctor, and I didn't look it up real fast so this is just what I think: Hyperventilating makes you breathe faster, making oxygen travel quicker out, right? So maybe the 'numbness' is less oxygen in your body? Just how I see it, not actually what it may be. |
Why do some people go blind after getting eye color change surgery? | I'd say it's Darwins law punishing them for spending their time and money on unnecessary cosmetic eyeball surgery. |
Why is deafness and blindness fairly common, yet we never hear of people with impaired smelling or taste? | Impaired taste and smell is also fairly common. It however does not prevent you from doing most jobs, and does not hinder your social interactions so it being known publicly is not very important.Because they get along in society just fine. Your co-worker or neighbour or cousin might have it, but he doesn't bring it up... |
Why is green poo bad? | Like a lot of medical symptoms, it can be concerning, but isn't necessarily bad. In brief, though, sometimes green colored stool is just the result of eating a lot of dyed food . However, the green color can also indicate the presence of bile in the stool. Bile is a fluid made by your liver and used by your small intes... |
How come so many people believe that "the _URL_0_" is real? | My guess is that its the same way telemarketers work, they ring heaps of people and maybe only 1% of people will buy, but that 1% is enough to become rich. Since this website is a $100 subscription, all you need is 100 gullible people to scam and you're already $10,000 richer.I don't know if its a scam or not but XPRS ... |
Gene therapy and how it works in this article about my disease | So your body's "blueprint" is kept in a giant molecule called DNA, and a small section of that DNA is flawed causing your disease. It's like a lengthy instruction manual with a page ripped out or smeared. So that part of your instruction book is now telling your body through a series of indirect steps to produce a cert... |
Does weed being in your system have any mental effect on you when sober? | THC has a half-life of 2 to 56 hr. It takes 5 half-lives to clear the drug from your system. So if you are a "slow metabolizer" , you may be "high" for a lot longer than you think .There are two effects. First, marijuana does cause mild withdrawal symptoms if you're a regular smoker. The second is that there is still s... |
don't drivers' weights mess with the overall stability / weight distribution of those expensive, high performance cars? how is this solved? | The Mazda Mx5, as far as I'm aware is designed to be "perfectly balanced" on half tank of fuel, and a driver of a specific mass . No passengers either. I have no idea how this is achieved, but the design does take into account that the driver sits to one side.They do. And people who care enough go to the trouble of dea... |
What is Glencore and why is it a threat to the control of mankind's resources? | It is a mining company. It controls 60% of the World market for zinc, 50% of copper, 9% of grain, and 3% of the oil market. This would be all well and good if they were a nice friendly little outfit committed to sustainable development. However their history "reads like a spy novel", and they have been involved in a ho... |
Do you lose apps/data when unlocking a phone through your carrier and switching carriers? | You could always download an app such as Helium to make sure any data that an app has created on your phone isn't lost, such as game saves etc. |
The circumstances surrounding Army Sgt. Bowe Bergdahl? | The people we released were dangerous, the conditions of his desertion are cloudy. This biggest question is what takes precedence: No man left behind or we don't negotiate with terrorists? Both are mantras we live by. It is also important to note that he was on the brink of death and his health was very poor. We also d... |
why does a cold bed feel awful but a cold pillow feel amazing? | IMO a cold bet feels amazing sliding into cool sheets is wonderful. I wouldn't want it to stay cool, but neither would I want my pillow to stay cool all night. |
Why are bidets and other water integrated toilet seats common in Europe and other countries but almost non-existent in the US? | I come from a country in Europe where bidets are normal. The main use is to ~~earth~~ wash your feet and to place the dirty clothes while you shower. Babies use them as washbasin.Adam ruins everything did a piece on it in his flushable wipes video Pretty much they became synonymous with hookers and brothels. because of... |
the physiology of that "butterflies in your stomach" feeling. | From what I've heard before, that feeling comes from our Fight or Flight instinct. Your body senses that you're nervous for something coming up, and as a natural response from the fear, your body begins preparing itself for the potential of fighting/flight. It sends more blood to the more important areas of your body s... |
How the hell does a 3D printer work? | It works like a plotter, only it is oriented with the "pen" facing downward instead of parallel to the ground like on a traditional plotter. The robotics are controlled by computer software, and typical 3d printers use a plasticy resin. The resin is melted and pushed thru the "pen" to go down onto the base, dries and t... |
why do modern rockets blast off with zero initial velocity (standing straight up)? | The biggest difficulty in getting enough speed to get to orbital velocity is how the earth's atmosphere slows you down. It is most effective to blast straight up until the atnosphere becomes thinner and the drag caused by the air becomes very low, then level out and accelerate sideways towards an orbital speed. Also tu... |
how does thought work without language? When I think, I formulate ideas in words. How did this work either prior to language or for people who have no concept of language? | Most thought does not use language. When you see a scary spider you don't feel the scariness because of the word "spider." When you are hungry and know you want to eat, that didn't come from language. When you see a beautiful nature scene, it's not beautiful to you because of language. When you decide to put on your so... |
Why does the letter H exist in Spanish if its silent? | For historical reasons. Languages change and evolve over time, and the way sounds are pronounced change according to some definite rules. One of those is called Grimm's Law, after the person who first discovered it, Jacob Grimm of Brothers Grimm fame , and one of the consequences of this is that the "h" sound can fall ... |
how does dust settle on vertical surfaces like glass panes? Shouldn't it just fall off? | It may be due to the irregularities in the surface, but it is more likely caused because the dust particle is statically charged, and it attracted to the vertical surface. Glass panes can be charged relatively easilyThings only look flat to us because of our size. Zoom in on your tabletop enough and it would be as fill... |
Are there actual modern-day hitmen? How do people find them? How do they not get caught? | "Local Man Asked For Hit Advice On Reddit Before Murdering His Wife, Police Say" - I can see it now ', "yes there are hitmen. most can be found through gangs or other organized crime rings. not getting caught is relatively simple. most murders are committed by people who knew the victim. hitmen lack any real connection... |
How do towing companies tow away cars when the car has its parking brake engaged? | On most cars the parking break only locks the back tires. The towing company lifts the car by the rear end, because the front tires turn freely. Some models of cars only lock the front tires though, and they'll just reverse the procedure. When those aren't viable options the towing company will place a set of tires, co... |
Why do people buy the turbo tax software sold in stores when you can just use their website? | Tax information is pretty personal stuff, I'd pay more not to have them hosted by someone else. I can encrypt and store my tax records offline . Also one can create any number of printed returns for no additional cost with the software. |
So I wanted to understand how do authorities verify when a mountaineer has actually reached the peak of a mountain. | They don't and there are no authorities. Historically there were so few people climbing mountains for fun that they all pretty much knew each other and climbing a major mountain usually involved a large team of climbers and an even larger team of support staff that you really couldn't lie about it. TL;DR, Honor system. |
Car related terms such as... | Liter is a unit of volume, like a gallon. The more liters an engine has the bigger it is, which means it has more power, but uses more gas. Torque is a unit of force. You can think of it as like the strength of car. A high torque vehicle, like a strong person, can carry a lot of weight without straining. Horsepower is ... |
why does the American Military measure distance in meters? But the rest of America uses feet and yards? | The last thing you want in the middle of a firefight where multiple countries might be involved is to have two different measurement systems being used. Example being Brits come under contact and U.S. is in the area to provide assistance and everyone is giving different measurements to pass information on enemy positio... |
What are the differences between ego and self respect? | Well, they are both related to how we view ourselves but I would say the difference is self-respect is healthy, and ego isn't. Ego leads to thinking someone is superior to others, prevents one from admitting mistakes, or leads to not taking the experiences and feelings of others into account and only considering one's ... |
Why exactly is it that when siblings (or closely related people) reproduce, there are problems? | It's because lots of defective alleles are recessive and rare. So they almost never cause problems because it's very unlikely that both parents have the same defective allele. Even if you have a defective allele and pass it to your child, your mate will provide a functioning allele that can compensate. But now say that... |
Why do some people have a myocardial infarction after losing a loved one? What chemical processes are taking place? | In advanced I'm on my mobile so I apologize. I'm also going to bring it to layman s terms so I'm not concerned if it's not **exactly** correct This condition is called Takotsubo Cardiomyopathy aka "Broken Heart Syndrome." It does not need to be a sad event it can also be a joyous occasion. In every way it's symtoms mim... |
That feeling when your on a Roller Coaster and you go over a hill. | you're* The feeling is you feeling lighter because some of forced caused by your momentum is still going in the upwards direction for a short period, cancelling some of the force caused by your weight. |
the difference between Ethnicity and Race (i.e. hispanic) | Because Hispanic isn't a race. There are Asian Hispanics, there are South American Hispanics, there are black Hispanics, and there are Spanish Hispanics. If you/your ancestors spoke Spanish, you put down Hispanic. For race, you put down what your race is. This could be white, black, southeast Asian, or any other type o... |
How do pinhole cameras work? | If you can imagine the camera in the shape of an hourglass, with the pinhole being the center of the hourglass, it's a lot easier to visualize. You can think of light rays traveling in a straight line, and every light ray that passes through the pinhole gets projected onto a surface, only it's in the opposite position ... |
How did Russia breach international laws? | Article 2 of the U.N. Charter prohibits states from engaging in any threats or uses of force against other states, of which Russia and Ukraine have signed and are members of. _URL_0_ The problem with international law is that it is nearly impossible to enforce or pass judgement on. It is purely a basis for argument and... |
When a surface is sticking to another surface (like tape) what is actually happening? | So there are a lot of [intermolecular forces] adhesives like those found on tape are very good at forming interactions with themselves and other surfaces. They are technically highly viscous liquids just like sugary things like syrup you might spill on your table.I would go with yes that they're both the same process. ... |
Why does selling college handwritten notes qualify as copyright infringement? (Why or why not) | This [University of Maryland] site does a good job of explaining why. On a related note, back in the late 1990s, my university was pressuring professors to convert their courses into web-based versions. Many professors were against this saying, "If I do that, then the university can get rid of me and just pay any numbn... |
Why does whipping cream make it fluffy? | The whipping action forces air into the cream, where it gets trapped. The trapped air is what makes the cream light and fluffyThe protein molecules in cream have formed formed a gel matrix, or foam, by being repeatedly beaten and whipped, which allows it to denature slightly. This denaturation allows tiny pockets of ga... |
Why do planes crash into each other when they have so much open sky and space to fly in? When I look up at the sky, it seems almost entirely clear of planes. | Almost all air accidents happen near takeoff/landing where all those planes are in a tight area. There is a very narrow path to use a runway. That said, air accidents are EXTREMELY UNCOMMON. You're safer on a plane than you are in your own car, by a huge margin. |
Why do people have different voices? | Vocal chords vary in shape and size which vibrate with air to produce sound. Think of these like a guitar string. Changing the string changes the sound. Head and facial shapes are different. The cavities in the head affect the way sound reverberates. Imagine taking the same strings from an instrument and attaching them... |
Black holes. Ive watched lots of videos but still cant rap my head around them. Explain like I am dumb 5 year old. | The traditional method of black hole creation is in supernovae. A supernova is when a massive star dies. When a massive, well, massive star goes supernova the forces acting upon its core crushes it until it becomes really small. This means there's a lot of matter in a really small volume. Now, gravity is caused by mass... |
Why isn't Russia considered a part of Europe. Geographically, most of their citizens, and even their capital, are on the European side of the country. | Russia is a part of Europe. It's also a part of Asia. Or are you asking why Russia isn't in the EU? That's a whole separate question.Russia is obviously Europe. FFS it was part of the holy alliance _URL_0_. Anglophone countries seem to know nothing about Europe. The Slavic ethnic group is European. The Russian Language... |
Can someone ELI5 why this water simulation works very well in a web browser, but is hardly used in video games? | Although this water simulation works awesome you have to be careful when using it on a larger project. The first thing to notice is the number of polygons or shapes used in this project. This whole project is simply a cube and ball. This makes the program use so little cpu because there are less polygon to render Marc... |
What is the deal with Dubai? | Oil money. Then they leveraged that oil money for credit to build up Dubai, initiating a huge slew of construction projects . Some of these building projects are so ostentatious and excessive that people took notice. They have been building a Las Vegas in the Middle East . However, with the recession that hit in 2007, ... |
why units of time are universal across modern cultures and languages | Probably because once the first working system was developed it was adopted and spread all over .. Most cultures will probably have time units that are derived from periodic events, like the rising and setting of the sun, the phases of the moon, and the movement of the planets. However counting these particular cycles ... |
How were photographs edited prior to advances in editing software? i.e. those old photographs of Stalin where people were phased out | For that kind of thing, they literally used an actual airbrush -- which is why photo editing software has "airbrush" tools, and why we use the word "airbrushing" to mean both retouching of photos and the practice of excluding people or events from the history books. A skilled artist using a small airbrush would paint o... |
Why are realistic CGI movies so expensive to produce? | As with most things expensive; it's difficult, it takes time and it requires a lot of resources. For one scene of CGI it might be months of work behind it, with everything from motion capture actors , scrubbing of the motion capture data, creating all the 3D models, painting or creating textures and mattes, staging it ... |
Why Germany decided to go Nuclear-free | Well, although Germany is not as seismically active as say Japan, there is seismic activity there which can be a cause for concern. Overall, I would say Germany made the decision because there is a strong environmental movement in Germany. Germany has already started building wind farms and is big on solar technology b... |
Why is there muscle strength loss after surgery? | Fun fact muscles are always in decline. Muscle cells are always dying off, body is always consuming mcules for energy. But the body replaces that if you use them, if not, body doesn't have a need to replace "damaged" muscles. Hence the loss of strength. As soon as you start using them, the strenght returnsThe body slow... |
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