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Why head hair continues to grow, while pubic/leg/arm/underarm hair seems to reach a limit growth? | All hair has a limit on how long they can grow. Most people's hair on their head will generally stop growing when it's waist-length. Different hair have different length because they all have different length of life-cycle. Your eyelash has a life of 7-8 weeks, therefore it will only grow to a very short length before ... |
China vs Porcelain vs Ceramic vs Earthenware | All of these are examples of Ceramics, which covers the entire set of the other items you are asking about. Ceramics are typically any sort of hard shaped material formed at least partly out of Kaolinite Clay. The main differences between the types of ceramics are: * Earthenware, fired at lower temperatures than other ... |
What causes muscles to twitch or vibrate randomly and uncontrollably? | Several things. It could be siezures, but since you are writing about it instead of being rushed to the hospital, that seems unlikely. Sometimes, the brain can randomly misfire and send a pulse to a muscle, but that doesn't happen too often. The third reason is that, when your brain hasn't recieved any messages from a ... |
Why is thirst instantly relieved as soon as you drink but hunger is delayed for several minutes? | If you become full on the first bite, you wouldn't eat anymore - drinking a single gulp of water gives you a much higher % of how much you need than a single bite of food. Brain just knows the difference. Plus liquids are absorbed much more quickly than solids, so that's another factor. |
How do they flavor potato chips and other snacks? | They literally have a lab, where people mix different ingredients, experimenting with flavor combinations. They then find a way to get that mix into a powdery form, and dust the intended chips during production. Artificial flavoring could be anything "food stuffs" as it's called. Stevia, Fructose, sour powder, anything... |
How to properly jump onto a stunt airbag. Is there any specific way? | Yes. You want to maximize your surface area. Diving head first will get you killed as the bag will do next to nothing. If you land on your face, it'll suck. So you want to land on your back. I'm not sure if the pros would extend their arms and legs, but I'd try to land like a starfish, with my arms and legs stretched w... |
How do audio wires work? How does a unit send something through metal wires that comes out of a speaker as a song/voice/etc? | Ever shaken a large sheet of paper back and forth and listened to the wobbling sound it makes? It's from the air being pushed back and forth. In other words a very primitive speaker. Next, take 2 magnets, in one position, the attract each other, in a different position they repel each other. Now what if we can turn one... |
How do some countries have nuclear weapons without nuclear power, but everybody argues that Iran can only get nuclear weapons with nuclear power? | There's a difference between a nuclear power plant, and a nuclear reactor. Both Israel and North Korea have nuclear reactors, though those do not provide power, and are primarily intended for weapons production and/or research. There are 2 ways to create an atomic bomb. Either you enrich nuclear material until you reac... |
what if someone got to the moon,and started committing crimes....What could the government do about that? | Not a lot as long as he stays on the moon, since there's a shortage of police and courts there. If he returns to Earth, he could potentially be prosecuted by the country that launched the spacecraft, his home country, or the the home country of any victims, depending on how those countries feel about extra-territorial ... |
when muscles get stronger they grow. How do our lungs get stronger if you go for a long run? | Your lungs aren't actually a muscle. They themselves can't get stronger, because they're not the thing providing the power to breathe. You breathe with a muscle called your *diaphragm*. It's a sheet of muscle that separates your chest from your belly. When it contracts, it moves downwards. This increases the pressure i... |
When companies get called to Capital Hill, to explain a fuck up or price hike, what actually gets accomplished? | In theory, Congress is having a hearing so they can better understand what is going on, so that they can consider passing a law to improve the situation. In the real world, they are mostly just putting on a show to impress the voters back home. |
The word 'Meta'. | The term "meta" has also become a slang term recently, as an expression of something in some way referential to it's own contents. For example, a painting of someone painting might be called "meta" or a play about making a playThere are generally 2 uses these days. The original use of Meta meant "above, around, outside... |
Why does different USB cables, connected to the same power source, charge my phone faster or slower? | The resistance of the cable affects how fast electricity flows through it. Longer cables, and cables with thinner wires have higher resistance. [Here's an article that goes really in depth on the subject.] In a lot of ways, [electricity moves like water]. In this case, it's like hooking up a hose. If you use a longer o... |
Why does my stomach hurt when I take certain pills on an empty stomach? | the medicine can irritate the inning of your stomach based on how concentrated it is in the cavity. i f you take it with food or water this will dilute the medicine as it dissolves and reacts with the acid in your tummy. |
what is happening to our eyes when we "defocus" our vision on purpose? | You have small muscles that warp the lens in your eye, to change whether you focus on nearby or distant objects. When you are focusing on a nearby object, distant objects are blurry and out of focus. You usually don't notice, because you aren't paying attention to them. So when you use those muscles to focus your eye t... |
Why are there so many toll roads in the USA? | You can pretty much drive across the US without hitting a toll road, its just that some of the most convenient routes in the north east have toll roads. There are usually alternate routes that avoid tolls, but are much slower. There are also toll roads in Canada around Toronto, like the 407.How else would we get to tha... |
The process of music recording, mixing, and production and the difference between low quality and high quality recordings. | Basically, the process goes like this; **Recording** - you set up microphones and instruments and get the raw sound. This tends to be the simple part, although there's a saying in music production that "you can polish a turd as much as you like; it'll still be a turd". Poor playing and songwriting are always going to s... |
Why is cigar smoke so much more odorous/long lasting compared to cigarette smoke? Aren't they both tobacco? | Cigar is pure tobacco, when cigarette is chopped up leaves with a lot of other stuff. Also size. If you take just 2 puffs from cigar it will go away just as fast as cigarette. But if you spend 30min chain smoking cigarettes it be pretty long lasting. |
What is happening inside my brain when a song is stuck in my head? and how do I MAKE IT GO AWAY?? | Getting music stuck in your head is an emergent reaction/behavior of the evolution of our auditory cortex. Human brains have evolved to excel at certain things: learned behavior, mimicry, social abstractions, etc. The catchy songs you get "stuck" in your head are due to a *side effect* of a few of the various amazing t... |
How is it possible for 2 quarks to cause the universe to collapse? | There are two types of matter particles, hadrons and leptons. Leptons are themselves fundamental they can't be subdivided. Hadrons are not fundamental. They are made up of three quarks, bound together by the strong nuclear force. Quarks are fundamental. I have no idea how 2 quarks could cause the universe to collapse, ... |
How can corn go through your digestive system and come out whole on the other side? | It doesn't. Only the outer shell does. The "skin" on a corn kernel is made of cellulose, which cannot be digested by humans. The inside is made of starches and proteins, and they are properly broken down. So, you're not actually seeing whole kernels on "the other side", you're just seeing the shells. |
Can someone ELI5 what humidity is? | Humidity is the amount of water in the air. Your body uses sweat to cool off. The sweat evaporates into the air, taking heat away with it. When there's a lot of water already in the air , it's harder for sweat to evaporate off your skin. So the same temperature can feel a lot worse if the humidity is high. |
How are different types of cancer (ex. skin, brain, breast cancers) different/similar to one another? If you cured one type could that same solution cure another? | The short answer to the second part of your question is no. There might be similar treatment/cures for similar cancers, but YOUR left thumb tumor is not necessarily the same as the other guy's left thumb tumor. There's no universal cure since we're all unique snowflakes. |
DNA Transcription and the roles of mRNA, rRNA, and tRNA | So in the nucleus of all our cells, we have strands of DNA, which provides a code for the creation of proteins out of little building blocks called amino acids. There has to be a method for the code in the DNA to be interpreted to turn into proteins. This is where we have mRNA , tRNA , and rRNA . mRNA literally perform... |
What is a "choke" in electronics | A choke is an inductor, which at its most basic is a coil of copper wire. It has the effect of limiting high frequency from passing through it. The limiting is based on the Henry rating . It is seen in crossovers to send lower frequencies to the woofer and block the high frequencies from going to the woofer.In a power ... |
in the shell sort algorithm, why are the numbers 1,4,10,23,57,132,301,701,1750 used? They seem to be ambiguous and are really confusing me... | Shell sort partitions the data. The exact partition is not that important, but the properties of the partition do affect the runtime. "Gonnet and Baeza-Yates observed that Shellsort makes the fewest comparisons on average when the ratios of successive gaps are roughly equal to 2.2." You need to have some numbers to do ... |
What are the rules/gameplay of Craps? | 1. New player rolls two dice. The sum of their two dice is taken. 2. If the result is a 7 or 11, the player wins immediately. If it's a 2, 3, or 12 the player loses immediately. 3. For all other rolls the player establishes a "point" and rolls again. 4. From this point forward the player continues rolling until they ro... |
Why does 'Latin' mean Hispanic? | Likewise, Hispanic means you're from Hispania, or Spain. It doesn't really make sense to call someone from say, Venezula an Hispanic, even if they speak Spanish. That's like saying someone from Minnesota is English. Regardless, Hispanic is still used that way. |
Why do East Africans have Caucasian features? | East Africans, especially around the Horn, have significant amounts of Eurasian ancestry from back-migration into Africa thousands of years ago. This ancestry is also present in a lesser degree all the way down East Africa, and is least present in West Africa. |
How to write a symphony? | The basic structure of a symphony is that it has four movements. The first movement is typically in sonata form, which is a pretty highly structured way of building a piece of music based on a few musical ideas. It's usually quite fast. I can try to explain Sonata Form like you're five if you really want The second mov... |
How come Britain is on the same latitude as Canada but comparatively so much warmer? | The [gulf stream] is an ocean current that carries warm water up from the tropics and to Great Britain, among other places. [You can read more on the gulf stream here]Canada is a huge country. I live in the southernmost part and our weather is definitely warmer than most of the UK. A/C is a necessity in the summer. Win... |
Why is it considered respectful to take your hat off in some situations? | Wearing a hat can obscure your face which is rude when greeting people and its normally considered outdoor wear so wearing it inside can be rude and wearing at at the dinner table can be very rude like leaving a coat on, it implies you are not planning on staying very longIn medieval Europe, knights would take off thei... |
Wine and food pairings. | Keeping it simple: - light wine for light food, strong and heavy wine for hearty meals - the sweeter the food, the sweeter the wine In practice, white wines go well with soup, risotto, fish, asparagus, and other "white" dishes, while dark meat, hearty cheese and anything with dark gravy should be matched with red wine.... |
(for my son): why does keeping food cold make it last longer? | Basically, bacteria don't do their decomposition thing as well when it's so cold. Not to mention, all the water is trapped in ice if you completely freeze it. |
Why are fraternities/sororities named with greek letters? | This particular story may be apocryphal but they were predated by Latin letter organizations. One guy was denied entry into one so he started a Greek letter organization. The Greek letters are initialisms of their mottos i.e. Phi Beta Kappa = Philosophia Bios Kybernethes which is "Philosophy is the guide to life." They... |
How is a nation's economy affected when its biggest export is an illegal good, a la cocaine via Pablo Escobar? | My understanding is that the value of the dollar is dependant on the number of dollars in circulation that represent the effective total 'worth' of a country. By printing money, more dollars represent the same amount of 'worth', meaning that each dollar is effectively worth less and less, and this is how countries prin... |
Why does our tongue have a "life of its own" | If it moves out of your control you might have a parasite that latches into your tongue and slowly dissolves it. Eventually it complely replaces your tongue. It's more common in fish. [the tongue-eating louse], is a parasitic isopod of the family Cymothoidae. This parasite enters fish through the gills, and then attach... |
Why do video games have load screen when simple 32GB games that people adore rarely did? | Because modern games have models, meshes, textures, particle effects, sound effects, shaders, and a million other things that are part of a data density in some cases exponentially higher than that of older, more simple games. That data can't just magically move from storage to RAM. It has to be processed. That takes t... |
Why are some people affected so strongly by certain sounds, such as squeaking Styrofoam? | There is a condition called [Misophonia] that causes extreme negative responses in response to certain sounds. Mouth smacking noises drive my husband pretty nuts; for others it could be the proverbial chalkboard or styrofoam or whatever. It's a neurological condition, and as such, is about as mysterious as the rest of ... |
Why can sites like 9GAG take/use my content without any credit to me and without me posting it myself? | Because you haven't sued them. It's not allowed, but what are you going to do about it? You could start with filing a DMCA take-down notice, and perhaps that would work quickly and cheaply. Otherwise you would have to hire lawyers, sue them, pay court fees, and see where it goes. Is your photo worth a few thousand doll... |
Why are diseases such as chickenpox deadly to adults, but practically harmless to children? | You seem to have your facts wrong. Chickenpox is not deadly to adults. Mumps poses a great risk to post-pubertal males, because it can render them sterile once the testes have fully developed. However, it won't kill them. Rubella poses a great risk in pregnancy, as it causes birth defects. Measles is dangerous to every... |
Why aren't there any successful third party candidates in major United States Elections? | First Past the Post voting, which is the system we have, encourages strategic voting, which discourages diversity. Basically if a simple plurality wins, then everyone is encouraged to pool together and vote together, and it always devolves into a 2 party system, even in mathematical models. CGP Grey has some really goo... |
what do motion detectors actually detect? | There's a few types of motion detector, but the most common is the Passive Infra-Red sensor . They spot sudden changes in the amount of infrared radiation in front of it - if a person suddenly appears in front of it, then things will suddenly get warmer, and that'll trigger the sensor. |
Why causes long wait times in the ER? What can be done to shorten wait times? Is this bad for patients? | It's called triage. As each person arrives they are assessed and then put into the queue. Just because they arrived last doesn't mean they get seen last. If they're the next worst off person they'll go in next. A few years ago I was in an ER here in Australia. A guy was yelling at a nurse because he'd been there for ho... |
Why are the letter arrangements on keyboards are designed like that? | Has to do with type writers. They are arranged strategically to avoid as often as possible having to press two keys that are next to each other to avoid jamming. Also for efficiency of motion, though some people prefer another layout called dvorak which is actually much more efficient"The type bars connecting the key a... |
Science models. What program or software do they use to "run" climate and other science models? | Models are usually run on computing clusters with a large amount of memory and CPU power. It's often a custom program, written by research meteorologists and programmers that they work with. |
How can life start from non-organic matter? You mean we came from tiny non-living particles in the big-bang? | real answer: at this time, we dont really know, we only have speculative theories.Imagine you have a chemistry set with an infinite number of chemicals/elements and any tools you need to combine them any way you can. Now imagine that you have an infinite amount of time to create, test, and learn about new formulas and ... |
What is 'Old Style' and 'New Style' dates | The Gregorian calendar we use today wasn't adopted by all European countries at the same time. Britain and its territories didn't adopt it until the 18th century, for instance. Russia didn't until the 20th. This means that there are a bunch of historical events that took place on a given day, but were 12 days later acc... |
With the earth running out of drinking water, and over 70% of the earths body being covered in sea water. Why can’t we just convert sea water to drinking water? | Short answer: we can. Long answer: it's expensive in terms of both money and energy. There are a few methods, but the ones I'm familiar with boil down to either a filter or boiling the water and condensing the steam. The boiling method requires a huge amount of energy to do on a large scale. The filter method is good, ... |
How are rocks older than each other? | Rocks come in 3 types: Igneous Rock: Formed out of lava. Sedimentary rock: Formed out of stuff on the Earth's surface. Metamorphic rock: One of the other two types, whose structure was changed by heat and pressure. Rocks are dated from when they formed. So you could have a sample of basalt that formed billions of years... |
If I am charging my laptop at the same time I am using it to charge my phone (via USB) should the charge on the laptop remain steady? | No. The laptop takes a larger charge than the phone so more juice is going in to the battery than is coming out into the phone. |
How and why did “male pattern baldness” come about? | We have 23 pairs of chromosomes . 23 come from your mother, 23 come from your father. While what is on each chromosome in a pair may have a different value, the members of the pair correspond to each other. So if eye color is on 12, your mother's eyes are on one of the #12 pair and your father's eyes are on the other o... |
Why does water taste sweet when you first wake up? | The same thing happens to me: I absolutely cannot stand water in the morning, to the point that it makes me gag. Nobody in my family has this and whenever I mention it they look at me as if I was off my rocker. Problem is, I can't actually describe the taste, because nothing I know of tastes like it. It's definitely no... |
Why's there still a "share" button for internet porn videos despite there being zero demand for it? | Three possibilities: 1) Someone out there actually uses the porn sharing function, so websites continue to use it. 2) Its a default option in the web video program that porn sites use, and removing it would cause some issues with the playback. 3) Web developers have a weird sense of humor, and have programmed it in the... |
Why does tilt-shift make everything look like toys/models? | I'm assuming you mean the "tilt-shift effect". Basically, because it mimics how we see miniature models. There are 3 things the photos have: 1. The photo is taken from a higher vantage point . 2. A shallow depth-of-field, mimicking our natural DOP when viewing something close up. 3. Increased saturation, as miniature m... |
If the music industry wants to discourage piracy,why do they release songs/albums digitally? | Because people want digital copies of their music. The music industry tried to fight digital downloads for a while, but ultimately there's too much money to be made from giving your customers what they want. |
Why do we need water to survive? What happens on a microscopic/cellular(?) level when we're dehydrated? | > Why do we need water to survive? Humans need water for circulation, respiration, and converting food to energy. After oxygen, water is the body's most important nutrient. Your body loses water constantly through sweat, urine, and even breathing. You must replace the water your body loses for your organs to continue t... |
Why are the Japanese not having children? | So it's a pretty common phenomenon that [as wealth rises fertility rates fall]. Lot's of rich countries have low fertility rates in the same neighborhood as Japan. The overarching theory behind this relationship between wealth and fertility is that richer countries have more educated women with more economic opportunit... |
Explain what he means when Wittgenstein says "if suicide is allowed, everything is allowed." | Truth is, that paragraph gets quoted a *lot* more than it deserves. It wasn't a fully developed idea that Wittgenstein was expressing; it was literally just a thought he jotted down in one of his notebooks but which he never really fleshed out. The basic idea he was getting at was that suicide is the purest expression ... |
Why is it legal to fire missiles against uncertain targets with a drone? | This doesn't seem like a very ELI5 kind of question. There's no simple way to explain an answer to really any of your questions, and you'd be even less likely to get an unbiased one. I mean, look at the comments so far. |
How does compressing a video file work? | The most common type of compression is lossy compression. Think of a video file as a series of jpeg files, which is a type of lossy compression for still images. When you want to compress a still image using JPEG compression, the computer is looking for parts of the image that look similar to each other and group them ... |
How is vodka made? | Depends on the type of vodka. Generally you take a lot of wheat or potato, some sugar, water, and yeast and let it ferment together. Then you heat the hell out of it and it evaporates and goes through a series of condensers. |
When earthquake / tsunami hits a region, how are inmates / patients handled in prisons / mental institutions? | Involuntary commitment facilities should have disaster preparedness plans already in place, so it's not like they'll just be winging it. There are two kinds of natural disasters, relative to your question: sudden and unpredictable ones, and ones you can see coming. If it's something you can see coming , someone with th... |
What’s the difference between Suntan lotion and Sunscreen lotion | Old "suntan" lotions - most of which don't call themselves that anymore - are sunscreens with a lower SPF . The idea being that they would keep you from burning as quickly, whilst still allowing you to tan relatively naturally. They don't provide enough protection, however, to keep one from burning completely and shoul... |
How do we build stamina over a period of time of doing something like playing a sport or running? What is going on "behind the scene"? | The answer by /u/thedylanackerman of "muscular efficiency" is partially correct. While participating in endurance training your muscles will in fact become stronger, but that is only a small part of the story . The larger part, your muscle fibers get better at using Oxygen . This increased ability to use Oxygen is what... |
What engineering/design feature prevents every car from allowing air to flow from the front defrosters and forward(face) vents at the same time? | Pretty much a shared duct between the front vents and the defroster, and a flap that redirects air depending on its' angle. In some cars, there are options to enable all three, but for a lot of people this isn't desirable; for some dry hot air in the face causes drowsiness and dry eyes, so even if my windows aren't fog... |
What does the keyword 'static' in java programming mean? | 'static' means that something is associated with the class as a whole, and not an instance of the class. For instance, if you have this declaration: static int count = 0; And you have 100 instances of your class which run this line of code: count++; At the end, this line: System.out.println; Will output: 100 However, i... |
(Q,r) Inventory Model. What is it, and is it relevant to online businesses like Amazon? | Say you're selling cheese. If you use the inventory model, you pick two numbers of cheese wheels, Q and r. Whenever you have r or fewer wheels remaining on your shelves, you immediately place an order for Q more cheese wheels. The hard part is determining what numbers are best to use for Q and r. |
Why does water evaporate all the time on a normal day when it's boiling point is 100°C? | Evaporation of liquids into the atmosphere is a normal process that slowly takes place at any temperature. Individual molecules near the surface will occasionally escape away into the atmosphere, but below the liquid's boiling point, air pushes down on the liquid harder than the liquid pushes back, so evaporation is li... |
What is actually happening when your body builds up a tolerance for something? (e.g. alcohol, caffeine, etc.) | drugs affect the amount of available neurotransmitters, which get picked up by corresponding receptors. like a lot of physiological processes, the body self-regulates in an attempt to maintain balance. if you continually flood neurotransmitters, the body will increase the number of receptors, which means overall you ne... |
How are federal buildings considered private property? | The land is owned by the federal government, as are the buildings, as is everything inside of them.Could you expand? What building are you talking about? For example you aren't going to be able to walk into the Pentagon because its the fucking Pentagon.They are not, they are considered Federal property. The land, the b... |
What is happening to my blood when I get so mad it feels like it's boiling? | If you're in an argument and get angry, your fight-or-flight response kicks in and causes an increase in heart rate and blood pressure. Many blood vessels throughout your body constrict, which causes body temperature to rise quickly. |
Why don't christians have jesus as a name, like how muslims have mohammad as one? | In spanish, Jesús is a very common name, like José or MaríaThe English version of Jesus is Joshua. And, as every other person has already indicated, in Spanish, that same name is Jesús. |
Why are college basketball/football rules different from the pros? | The governing bodies of each league, be it NCAA or NBA, want to put a good product out. The rules are different because each league has found a reason to have different rules. Some of the rules encourage competition, such as the ground causing a fumble in college football. Some of the rules are just different because t... |
What happens to drug money / laundered money after it is confiscated by authorities? | It is forfeited to the gov't. In some jurisdictions, it goes to the agency that seized it. This has caused a lot of problems, as those agencies more aggressively pursue causes where they smell money, often illegally. More often, that money goes to a general fund and is spend like any other money the gov't collects._URL... |
Why people don't just type their question into google to get an immediate, detailed answer instead of submitting it to ELI5. | I appreciate the people who post to this sub instead of using Google. I can now spend hours sifting through answers to pointless questions I didn't know I wanted to know answers to!", 'People want explanations they can understand in familiar terms, not highly detailed information full of inpenetrable jargon.A lot of ti... |
Why is Jesus holding an orb and putting up two fingers in many of his portraits? | The orb is called a [globus cruciger], and symbolizes Christ's sovereignty over the world . In an interesting side note, this is yet another thing pointing out that yes, people *did* know the world was spherical before Christopher Columbus. |
If taste is 80% smell then how come soap tastes horrible? | It's not that the strength of the experience is 80% smell, rather that out of the number of different flavors, most are smells. The basic tastes we have are salty, sweet, savory/umami, bitter and sour. The rest, like "vanilla" or "flowery" or "smokey" are smells. But the basic tastes can still create very intense taste... |
What a Mechanic's Lien is/does? | You take your car into the mechanic's shop to get it repaired. The mechanic fixes your car, and says you owe him $1,000. You don't have the money to pay him right now, but you need your car to get to work so you can make enough money to pay him. So, the mechanic gives you your car and keys back anyway and writes down t... |
During hot weather, why does my house seem to get hotter in the evening even though it has cooled down outside. | Could be any of several reasons: 1) there are things in your house generating heat ; 2) residual heat from the walls and roof of your house radiating it back into your house; 3) if the sun is still shining, could still be heating the inside of your house faster than the heat can go back out the windows. Edit: spellingY... |
What's the facts on Kwanzaa? Is it a real thing? | .The reasons it's a joke is that the sentiment of a new Christmas celebrating Africanness is a bit odd, those who would celebrate it probably already celebrate Christmas, and the traditions have no cultural or emotional root with people Imagine if I made a new holiday up of whole cloth celebrating Asian culture and all... |
Why are bitcoins worth money? | Bitcoin, like anything else, is worth money because we agree that it's worth money. Any value that anything has is only because someone else agrees that that something is worth trading for. The same is true of cars, diamonds, gold, and money. If it is accepted that X amount of Bitcoin is worth Y dollars, then that's wh... |
How can we be sure of the dates of historical events | Knowing how they were implemented, we can sort of "convert" the dates from other calendars like Julian to our own. The Julian calender has a 365.25 day year. Gregorian uses 365.2425. That's a difference of .002%. Most of Europe adopted the Julian calender so it is pretty easy to convert since 45 BC. Before true dating,... |
Why does adding slow motion to certain videos create a shutter effect? | Imagine you have a video. You open it in your video software. After some investigation, you learn your video is 1 second long and consists of 24 individuals photos of a cat running. Cute! But one of your friends comes along. She isn't very impressed by the video. She says it would look cooler if the cat was moving more... |
Why did Blu-ray win the war over HD-DVD? | Sony owned blu Ray. They ps3 released in 2007 I think came w a blu Ray player That ended that. But Sony did let you bring your hddvds back and paid for blu Ray replacements. And hddvds players also you could return for bluray. I only remember that because a friend of mine at the time bought an hdvd player for his dad. ... |
Why the asteroid in this .gif take the path that it does [particularly the parts where it speeds up and then suddenly leaves] | The initial change in direction occurs because the object passes into a region of space where Earth's gravity outweighs that of the Sun. It's not a sudden change, which is why the path is curved rather than a sharp corner at this point. The final loop is special because it happened to bring the object close to the Moon... |
Why does everything continue to exist, from moment to moment? What prevents the all-ness of everything from randomly, suddenly ceasing to exist? | Your question is similar in feel to the question 'why is there anything at all?'. Thinking about this sometimes gives me vertigo, or makes me scared of death. Imagining the reality in which nothing exists feels like trying to imagine myself not existing . So I guess I'd say there is no answer because it would need an u... |
Why do different types of alcohol have different effects on behavior? | To my knowledge, little to no actual data exists on this. It is mostly anecdotal. However, alcohol makes you drunk. It really doesn't matter what kind of alcohol it is. Apart from the likelihood of a hangover the next day, the type of alcohol you drink actually doesn't actually have different effects on your behavior. ... |
Why do bees produce honey? Why is it not harmful for the hive when we steal it all? | They use it as a food source through the winter. It IS harmful if we steal it all; the hive will die without it. That's why people interested in keeping the hive alive only take some, or take it all and provide them with another food source. |
Why does 'humid' cold feel colder than 'dry' cold? | Humidity is the amount of moisture in the air and water is a good thermal conductor so when its cold water is cold and hot water gets as well. So when its cold and humid it will feel colder than when its dry because of the moisture in the air. It also has the reverse effect hot days will feel worse when it's humid. |
What exactly causes mouth ulcers? Why are they white and why does salt help to heal the ulcers? | Replying from phone. apologies for any typos. Ulcers can be caused by a number of things. Stress, viral infections, bacteria, allergic reactions, etc. So no one thing causes it. The whiteness, is basically your mouths way of scabbing over. Combination of platelets, mucous, and pus. If you have ever gone swimming and ha... |
What can OSX not do that Windows and Linux can? | I use all three on a regular basis and I find the pro/con arguments for each system to be a bit overblown. For the average end user there is little difference other than aesthetics. Chrome looks the same on all three operating systems, and that's about all the average person uses their computer for anymore is web brows... |
Why are there different screw heads? Why not just one head, used everywhere? | Originally, screws were designed for flat-headed screwdrivers and were very expensive to produce. With the advent of automation in factory settings, however, screws were needed which could better stand up to the power of automated screwdrivers. Thus, the Phillips-head screw was designed to help better center the screwd... |
How much is the average college partier doing to his/her body, by binge drinking every weekend over the course of four years? | Follow up question: how much is that damage exacerbated by continuing for the following 8 years?Binge drinking alcohol is actually one of the most harmful drugs to your brain. "“Frontal white matter tracts are the pathways that connect the frontal lobes to the rest of the brain,” study co-author Catherine Brawn Fortier... |
Why is the sign for a dollar $ when the dollar starts with a 'D' | historical reasons, it's easy to find on [wiki dollar sign]. there are two possibilities, it evolved from spanish peso ) by merging of two letters and evolving into $ picture) |
What's going on with Nick Clegg? | Nick Clegg is the deputy Prime Minister and leader of the Liberal Democrat Party. The current Prime Minister of the UK is David Cameron; however, he is only Prime Minister because his party entered into a coalition with Nick Clegg's Party. Nick Clegg is in the news a lot now because his party is having its annual gener... |
Why are there so many Saudi Princes? And how many are there? | There are 15,000 members of the royal family in Saudi Arabia, all princes/princesses or better. Part of this is just due to the fact that Saudi Arabia has practiced, and still practices, polygamy. The founder of modern Saudi Arabia had at roughly 100 children, 45 of them sons. His youngest was born **52 years** after h... |
Why do they still paint airforce planes in camouflage? | The paint on the B2, F22, F177 is radar absorbing paint which helps reduce it's radar signature. And the paint on the other planes is CARC paint which is chemical and radiation resistant.They are not painted for camouflage. It may look like camo but the paint is special and has other purposes. |
Why is standardized testing such a big deal? | Your GPA depends as much or more on how easy of a grader your teacher was than how good of a student you are. Standardized tests don't tell them much, but at least it gives them something they can use that can compare between students in different schools.It gives the country an easy way to compare scores and track pro... |
Why haven't insects evolved to be able to avoid spider webs? | What makes you think they haven't? They're in an evolutionary arms race. Bugs that can't escape or avoid spider webs die. Spiders that can't make a spider web that catches bug dies of starvation. Each generation the poorest web making spider dies of starvation, and the insect least able to avoid or escape spider webs d... |
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