Split (3)

train · 279k rows

query stringlengths 8 249	answer stringlengths 45 7.8k
Does my dog hear his name like I do?	No. To him, his name is a command just like how "sit" is. But instead of asking him to sit, his name means "look at me/come to me" which ever way you use it.
Why are people so critical of their own work?	Because any medium is an imperfect translation of abstract thought. I'll use books as an example, but it works for any media. Everything you know about a language paints a picture in your mind. When you read something someone has written, you can't help but see it. When someone describes a character, you picture that character. This is why it often feels weird when a movie is made about a book, and you see a character who doesn't match the one you have in your head, and it creates dissonance. Sometimes all of the magic movie parts come together and you get someone who is "perfect" for role: this is simply someone who matches up what's in your head. When you're writing, you're playing a game of telephone. I don't care how good a writer you are, your translation is still imperfect. I can assure you that the Hamlet in my head is not the same Hamlet that was in Shakespeare's head. When you read your own work, your mind reflexively tries to create a picture based on what you're reading, but since those words are an imperfect representation of the idea that was already in your head, your new mental picture doesn't gel, and you get that same dissonance. The fact that they don't match up is frustrating, and you can't help but feel like your writing is terrible because it isn't painting the picture that you wanted. And you may be right! But even the greatest authors experience this self doubt and frustration and endless revision, sometimes as much or more as beginners. Being a successful artist means learning to work through this process, and teaching yourself how to speak your own language, where you can learn how to translate your own thoughts into a medium or media which others can take in and appreciate.
How do trains pull so many cars? What is the limit to the amount of weight they can pull?	The locomotive is large, and is pretty much all engine and fuel. Of course there's a limit, but you can increase that by adding more locomotives. This [Wikipedia article] describes the record for the longest and heaviest train ever; eight locomotives pulling a train of 682 cars. It was four and a half miles long and weighed nearly 110,000 short tons.
How to Buy Groceries Properly	Bigger problem with 6 people in an apartment is keeping track of who owns what. I suggest, at first, generally just buying what you plan to use immediately , with a few frozen/canned things that you can break into on short notice. This will prevent you from buying too much of things you don't need & having them go to waste. Things you can safely stock up on are dry staples , small pieces of meat frequently go on sale & freeze well if you put them individually in ziplock bags). You might also want to consider frozen veggies. In general, you want to refrigerate your fresh veggies & buy things frozen that you want to freeze . Meat, OTOH, should be frozen if you're not going to use it within a few days . As for separation, you want to leave your veggies alone until you're ready to use them. Most of you meat will be butchered for you unless you're buying whole chickens , so that's not really an issue. and fuck ramen. Spend $15 on a rice cooker and buy a 20lb bag of rice> How do you separate what goes in the fridge/freezer Seriously?
Is there a correlation between a full moon moon and odd behavior?	My girlfriend works as a midwife and says the same thing. She hates working night shifts on a full moon, "because it is madness". I don't believe it actually makes a difference, there is no scientific proof. Although I'm aware that these old wives tales, and a lot of folklore regarding full moons does stem from odd behaviour at these timesThere has been a bit of research done in this area for quite some time. The phenomenon is called "The Lunar Effect". It refers to a change in animal behavior that coincides with phases of the moon. The belief that the phase of the moon affects behavior has been around centuries if not millennia. The research into the effect especially in regards to humans has come back indicating that there really is not much of a difference in behavior nor is there a noticeable change in violent behavior. [A meta-analysis of 37 papers performed in 1985 indicated that any prior indication of the effect can be accounted for by errors in the experimental procedure or interpretation.] If I were to speculate, I would say that your friends might be falling prey to the confirmation bias and are more inclined to notice the behavior of patients when it is a full moon rather than when it isn't.No. There is no correlation. However, there is confirmation bias, so when you hear the rumor that the moon affects behavior, you pay more attention to odd behavior on the full moon and forget odd behavior that isn't on the full moon.I work in the ER, often night shifts. There are just as many crazy nights with crazy patients on dark nights as there are full moon nights. Craziness just comes and goes.
What is corporate welfare? (no politics please)	Take major league baseball for example. For a particular team, the stadium they play in may be 50 to 100% public money. To build the stadium, local government may take away land from other private owners. The team is exempt from local and state taxes that other local businesses have to pay. For agriculture, farmers get very cheap crop insurance from the government. Subsides to grow and not grow certain crops. For technology and manufacturing. Some companies get low interest government back loans, free government land and no tax for a number of years. For oil, gas, coal and mining. Companies get to take valuable minerals out of public land for a very low price, and they often leave the land in a very polluted state. For finance companies. Government often assume the risk , but let the financial institution earn the rewards . For government contractors. Government overpays on services and products, it may not even need.
Why is it that when i get 8-9 hours of sleep i wake up tired but when i get 3-4 hours i wake up energized?	When we sleep our brain goes through a cycle of activity. This cycle will vary between 80 - 120 minutes and may repeat 4 or 5 times during the night. The "deepest" part of this cycle is called REM sleep. This is the state usually associated with dreaming. We will enter REM sleep various times throughout the night, each time lasting longer than the last. If you wake up during REM sleep, you may feel more groggy than if you woke up in an earlier stage of the sleep cycle. If you don't have a regular sleeping schedule then your body may not regulate these cycles and you might wake up in the middle of one and feel "worse". Where if you wake up after 3-4 hours of sleep you may be waking up during a more natural part of the cycle.I use a smart alarm clock to monitor my sleep, and wake me when I'm in a light sleep. If I wake up to my alarm from a deep sleep, I feel awful. Sleeping 3 or 4 hours probably isn't enough time to get you into a deep sleep, therefore you feel more energized when you wake.
Can 2 or 3 people have the exact same voice?	Close enough to cause confusion, anyway. When I was in high school, this happened more than once: SFX: Phone rings My Dad: Hello? My Dad: I think you must want PossibilityJones. Just a moment. PossibilityJones! Phone! Me: Hello? My Girlfriend: Stop it! You're just screwing with me! I know it's you all along!
How are the songs on the radio encoded into radio frequencies?	If it is analog radio there are two ways AM and FM. In both cases you have a carrier wave at the frequency you set your radio to. The carrier wave has higher frequency then the sound. The sound you can hear is < 20,000 hz and the carrier wave is in the 1,000,000 hz range AM changes the amplitude of the carrier wave with the amplitude of the sound ie a multiplication of the signals. FM is more complex and you change the frequency of the carrier wave with the amplitude of the sound and keep the same amplitude. You can see an [animation] on the wikipage of how it looks. And if the question is for digital radio then the answer is more advances because the song is encoded like a mp3 on a computer and then transmitted digitalt on like hos WiFi works .
How are nearly perfect polygon (usually hexagon) bubbles formed when I submerge a drinking bottle, with a circular mouth hole, under water and let the air escape?	For the same reason [these suckers] make hexagons; it is the least amount of edging surface required to make the cells or bubbles.
How are jars vacuum-sealed?	The contents are heated as they are packed, at very least to pasteurize them. Lids are applied hot, and as the content cools, it creates a partial vacuum.
Can you explain to me (like I'm five) what microprocessor stepping is, and how it works?	The speed usually advertised on your microprocessor is it's highest speed. When the processor is running at it's highest speed, it can do the most amount of work . But running at the highest speed also makes it use up the most amount of electricity. What microprocessor stepping does is limit the speed of the processor to only what it needs for it's current job. For things like typing an essay, or browsing reddit, a modern microprocessor usually needs very little speed . But if you are watching a movie, or playing a video-game, it will probably need all of the speed. Almost all processors today use stepping to conserve power, while still being able to do the most complex tasks you need. This feature is built into the microprocessor, and can be used by any operating system to control the processor's power usage. Hope that explains it :)
Why do movies use a green background to film with CGI and not other colors?	Green is generally the farthest colour from human skin tone, being the opposite of red, so when it comes to removing it you avoid issues with holes in the person. Also modern digital cameras devote twice as many pixels to green as for blue or red, so they're a lot more sensitive to the green spectrum.
Difference between a key change and mode change in music.	From what I understand all the modes retain the same base note. So if you know enough about whatever mode they are playing in you can figure out what note they keep ending with or going back to. When you change the key the base note is different. For example the difference between C major and C mixolydian is that in the latter the 7th note goes down a half-step. They both have the same base note , but the scales are different.
How does discarded yard debris, such as a pile of grass clippings, get hot enough to combust?	I'm confused as to what you mean, but here's what I think you mean: "How can very green plants burn if there's so much water in them?" Water interferes with combustion because it boils at a lower temperature than the thing that we're trying to burn. This is important because water stays at the same temperature as it boils, so the material can't get above that boiling temperature until all the water has boiled. Boiling water takes a ton of energy. The energy released by the material burning has to be greater than the amount of energy needed to boil the water and ignite surrounding material. For a damp log by itself, there's no way. But if we get a nice fire going, the energy released by the fire will be more than enough to drive off the water, allowing the wood to burn.
Why can't electric cars charge themselves like combustion engines can charge it's own battery?	Because the combustion engine uses the combustion to charge the battery via a generator . The electric car uses the battery to run the car. So using a battery to charge a battery is both pointless and will result in a net loss of energy due to heat. Also, electric cars do charge themselves when you use the breaks or are coasting downhill in cruise control and it's slowing you down by applying a generator to the drive shaft causing resistance while generating electricity
How does Shampoo and Body Wash work so effectively when it only stays on our body for a few seconds before getting washed off?	If I understood correctly, you are basically asking how soap works. Soap/shampoo/body wash has molecules that can interact with both the water and the fat/dirt you want to remove. These molecules have a polar portion, which binds them to water, and an apolar portion, which makes them able to interact with organic matter . So in a way, soap allows the organic matter to become "soluble" in water. You're not really destroying the dirt molecules per se, as much as allowing them to be washed away and go down the drain.[There's a Magic Schoolbus Episode featuring Wynonna Judd about this.]
Why is red, white and blue so prominent in flags throughout the world?	Red often symbolizes bravery, courage, or blood shed in warfare. White usually symbolizes purity and peace. Blue symbolizes peace, justice, and vigilance.
Why does squinting improve my eyesight when I don't have glasses on?	Glasses bend the incoming light to focus it appropriately to the back of your eye. When you squint, you're doing the exact same thing, but very imprecisely. It bends the light just enough to help you get by in a pinch.
Why are some economies self-sustaining while others require a massive trade surplus just to function?	A lot of the value produced in the USA is by peoples brains and not their hands. If you import a ton of cheap garbage from china for pennies and export knowledge in medicine, engineering, business, finance, etc. For hundreds of dollars per hour, its hard to look at that as being BAD for the us.
If two half-asian, half-caucasian people have a baby, is there a small chance only the caucasian genes are passed on?	Mathematically yes. Statistically no. That would require: - that each parent had EXACTLY half of its genes from each origin, which is a very small chance. - that they have EXACTLY complimentary halves , which is again a very small chance. - that the chromosomes all crossed over at exactly the right place to switch it out, which it another very small chanceAncestry doesn't depend on what genes you have. No matter what happens the baby will technically be half white half Asian. That being said a lot of genes conform to gene blending. Skin tone, eye shape, etc. Only some genes are a one way or the other thing, like eye color. tl;dr No such thing as "caucasian" genes', "As far as genotypes go, it would be statistically impossible. Phenotypes are what I believe you are thinking about. Phenotypes are dictated by genotypes therefore the same concept applies. However nature is not known for strictly following the rules and small wonders do occur. Take for example a set of twin girls born to parents with mixed heritage. Their physical appearance is quite unusual and interesting. I wouldn't rule out everything as impossible. _URL_0_
Why does our electoral system have "super delegates" who don't have to cast votes matching the popular vote of their district?	It's not really "our electoral system", it's the Democrats\' nomination process that has it. Technically, those people don't have to cast votes based on anything, but the majority are almost certainly going to vote for whoever ends up winning the vote-based delegates. It came up in 2008 - a lot of superdelegates came out to support Clinton early on, and ended up switching their votes to Obama after it was clear he had won the popular process. It 'd be political suicide for the party to swing the vote away from the primary results. As to why it exists, the cynical reason is that candidates do a lot of work to try to convince these superdelegates to come out in support of them early on in the process, and they don't want to lose that feeling of importanceOne aspect of American politcs that many fail to realize is that political parties, including our modern Republican and Democratic parties, are not codified in any official governmental capacity. In reality, both parties are informal, _private_ organizations who can set up whatever systems they want with regards to who to nominate for what offices. The concept of superdelegates exists as a way of exerting the will of the higher-ups in the party , while still leaving a large portion of the nomination process open to the rest of the party membersBecause democracy is too important to be left to the masses. Usually the excuse given is that they are a "protection mechanism" or a way of short circuiting rare, bad situations. Like what if a candidate was steaming along, winning primaries, and other contenders dropped out, and then the night before the nomination, it turns out that this leading candidate had done something horrible - like had sex with a dead pig.
How does the body make blisters?	heat damage increases capilary permeability and plasma "leaks" under a thin skin layer, getting trapped under itTangentially related: use tincture of benzoin to treat them if you want to keep using the blistered body part quickly. Works great.
Why do we hear about so many soldiers in the present day wars in Iraq and Afghanistan returning with PTSD, yet it seemed to be nonexistent in those returning from WWII?	Back then it was called shell shock. Damn sure happened frequently but just not as discussed much like most mental illnessesSource: I am in graduate school getting my doctorate in psychology Answer: There was always PTSD. Unfortunately, untill fairly recently, mental health in general was not something people would talk about and at the very least, admit that something was bothering them. Moreover, when people would go to the doctor, they would go for phsyical symptoms in hopes to get something, anything, for help; all without actually saying they were bothered from PTSD symptoms. One of the reasons this happened was because it was a very commonly held opinion that you were morally weak if you could not handle going to war. As others have said in other answers, "Post-Traumatic Stress Disorder" was only coined in the 1970's, but not formally recognized until the 1980's . It was known as, "Soldier's Heart
Evolutionary History of Pandas?	I suspect it is because of their diet. Taxiphyllin, what babmoo shoots produce, is a toxin that produces cyanide in the gut. So most animals can not eat it or in large quantities. We can only eat bamboo after it has been prepared correctly. Basically the giant panda was able to survive because it could eat a plant that most animals could not.
Why can't Palau, Marshall Islands, and Micronesia provide for themselves and not be in Free Association with the United States?	Ever since WWII ended, there has been a strong decolonization movement throughout the world, and many countries are either granting their overseas possessions independence, or giving them full status as an integrated part of the nation. Many of these places want independence, but aren't equipped to take on all of its responsibilities. Many of them take intermediate steps first, like a free association, before they are ready to break free entirely.
Why does Google Maps suggest a slower route?	The problem is if two places are far away there are too many possible ways to travel. Instead google thinks of points along the way and calculates the fastes way between those points. It then adds those ways upBecause the devs want to give you options. You may think "I know that's a faster route, but I want to take the scenic one" So maps may suggest it, even if it's slower.
how do birds mate, and why can we still eat an egg?	The chicken eggs in the grocery store have never come in contact with a rooster. They are unfertilized eggs.Hens lay eggs whether they are fertilized or not, and aside from the presence of the embryo, there's no difference between fertilized and unfertilized eggs. The eggs we buy in grocery stores are unfertilized but you can eat fertilized eggs too.
Why is a bra just called a bra when it covers two things, but a pair of panties is called a pair when it only covers one thing?	We don't call them a pair of shirts either. Panties came from pants, and pants originally came from hosiery, which came as two separate pieces. We kept the "pair" nomenclature even after we starting joining the two leg pieces together in the middle.same reason you drive on a parkway and park in a driveway, and that cargo goes by ship but a shipment goes by truck. and that it's called a hot water heater but you don't need to heat hot water. just to be silly
- Why is it that Peter Pan is portrayed so much by women in plays and new reboots of the story?	It's much easier to make a woman look like a 14 year old boy than it is to find a man that looks like a 14 year old boy.Peter Pan is supposed to be a boy who is, at the very most, 14. However, not everyone wants to work with child actors, and grown men are typically very obviously post-pubescent. So instead, they use women - women who can be grown but will have higher voices, less facial hair and maybe even dewey, younger looking faces than men of their same age. Often, these can pass for pre-pubescent boys more easily than menThe list of 14 year old boys who want to put on tights and get permission slips to be hoisted on stage who also have the talent to sing and perform the lead in a production is pretty small.
Why do I get hiccups after one tiny swig of whisky?	Hiccups are a result of one of three things : expansion of the stomach, movement of stomach acid or irritation of the phrenic nerve, which controls the diaphragm. As it is unlikely that a swig of whisky can cause the stomach to expand, it is most likely whisky irritating the phrenic nerve or a less likely, a quick reflux action of stomach acid.
What would happen if every single American with student loan debt simultaneously defaulted on it?	The banks would be bailed out by the government, who insured the loans. Taxpayers, including those newly-graduated and working debtors, would have to make up the losses in higher taxes. Deadbeats would lose their credit rating, and have to pay exorbitant interest rates for years to come. Student loans would become prohibitively expensive and fewer of the next generation would be able to attend college. The job market cannot find adequately-trained Americans and seeks visas to hire foreign guest workersIt will be the housing bubble busting all over again. It will probably happen in the future, too.Just a heads up you really can't default on government backed student loans. Even if you never pay, the government will take it out of your taxes or simply garnish your wages until it gets the money. That means they will still get the money, you will still have to pay them, and now your credit is shit because of it.Their credit would go to hell while the companies well those with lobbiests would get a nice gov funded paycheck.Total student loan debt outstanding is about [1 trillion dollars]. If the government doesn't own the debt outright, it has guaranteed it. The bank bailout was underwritten by the Federal Reserve to the tune of [7.77 trillion dollars]. And what happened to the banks? A bit of extra scrutiny, and not much else. So, if you're thinking of some silly doomsday scenario, then I'd say nothing would happen. What would happen is the Federal Reserve would create enough money to deal with the debt, and the defaulters minimally wouldn't get a tax refund until they'd paid it all back. Or, the government could use IRS tactics to seize anything in the defaulters' bank accounts and take money out of their paycheck until the debt was repaid.
What causes the need to pee?	It's been a while since I've studied it so I can't elaborate too much. Basically after we reach about 200mL of urine our bladder stretches too much and we feel the need to pee. I was taught that every 50~100 mL of urine will re-trigger this feeling until your bladder can't stretch enough and is forced to contract which causes you to pee. The nerves are called the pelvic splanchnic nerves which is part of the inferior hypogastric plexus. _URL_0_ Source: Working on my masters in exercise physiology Edit: If you want to read about [the plexus] or the [Splanchnic nerves]
When you burn your tounge, why does it feel like a different texture?	The answer is in the question. Burning skin damages it. If it's damaged, it's going to be a different texture until it heals. Also, your tongue has nerve endings just like the rest of you. The tongue itself can feel things. When burned, those nerves aren't working properly any more. So your tongue will feel different to the rest of your mouth, and your mouth will feel differently to your tongue.
What is the purpose of the "Do not eat" packets often found in packaging? What would happen if it was to be consumed?	it is there to absorb moisture and keep the thing its packed with dry. it is non toxic but may irritate your digestive tract.. btw its silica gel _URL_0_
Why can reading glasses be purchased over the counter, but glasses for nearsightedness cost hundreds of dollars?	As I understand it, "reading glasses" are basically wearable magnifying lenses at various strengths. Glasses for nearsightedness are far more than that - in essence, they need to be carefully shaped to reverse the abnormalities of your natural lenses and eyeball. This is a somewhat complicated calculation, and the cost of the glasses reflects the complexity of creating your custom lenses. The charge for an eye exam is completely separate from the cost of a new pair of glassesThe optometrist thing is important because they can check the health of your eyes. The reason glasses are so expensive is because one company called luxottica or something owns everything and price gouges. Go to _URL_0_ for glasses.Reading glasses are basically just magnifying glasses that assume your vision is the same in both eyes. They are mostly made for older people suffering from presbyopia. Some people who are far sighted can use reading glasses, and some can't. Prescription glasses are created specifically for your eyes, and each lens is likely different. Since you wear them all the time, they are made to be lighter and more fashionable.Reading glasses are general strengths. Prescription glasses are tailored to your exact needs. That extra specificity means extra work and extra cost.
how are ETFs priced?	Each share of the ETF owns very specific fractional shares of the other stocks. If we have an ETF that is 0.01 shares of AMZN, GOOG, and AAPL per ETF share then it should be priced at 0.01* or $30.57 per share. If you were a market maker and you owned a large number of shares of this ETF, you could turn them into the underlying assets. If you have 1 million ETF shares you could trade them for 10,000 shares of AMZN, GOOG, and AAPL which you could then sell for their listed prices. You could also take 10,000 shares of each and turn them into 1 million shares of the ETF If the price of the ETF diverges from the price of what it contains then this creates an arbitrage opportunity where you can buy the stocks cheap in one form and sell them for a profit in another. The automated traders are quick to take this chance for free money so the price of an ETF is usually pretty close to the price of the assets that make up each share of it
How do muscles get stronger as you workout?	In a couple of different ways, actually. First and foremost they get stronger with lots of exercise because they get better at recruiting more fibers and contracting harder, which is mainly due to the training effect on your central nervous system. Secondly the muscles themselves get little micro tears in them as you lift weights. When these little tears heal back your body heals them back bigger and stronger than they were before.
how are chip cards more secure than swipe cards?	The chips generate a rolling code and would be imposible to predict or duplicate. So suffice it to say that you cannot spoof the card. So unless you actually steal the card you are out of luck. so any retailer that uses a chip is effectively immune from credit card fraud or atleast bogus claims of fraud.Chips on a card is like a tiny computer processor. Where as the mag strip is simply a line of data. Functions and benefits of a chip:stores lots more dataperforms cryptographic functions safelycan process instructionsis tamper proof Functions and benefits of the mag strip.* we still use it only because some places can't read the chip.stores very little information stores your pin for offline transactions. Just be sure that you use the chip as much as possible. It is a lot safer, as the card uses some crypto black magic to keep your data safe. Sources: I develop software for bank cards. To make it very simple when working with the chip it's like speaking to a teenager where as the mag strip is like reading a note of approximately 37 characters.The swipe card has no security features by itself. Anyone can read the content of the magnetic stripe and copy it. Then all they need is your PIN. The chip is a tiny computer that can actually do things. Using cryptography, it can refuse to cooperate unless the reader identifies itself properly. Or it can even itself encrypt a message saying "this is /u/osmosisparrot wanting to buy something for 17 dollars at McDonalds and I used the PIN 1234" which will be sent to your bank, so that nobody can do transactions in your name unless they have that working chip and an authorized reader and your PIN.
Why are rainbows always curved?	Rainbows are actually circular, however, ol' earth gets in the way. But there's more to it, too. The sun's light has travelled so far that it's coming basically straight at us, there are droplets of water in the air that splits the light apart into colors, and bounces them back towards you. However, there's only a certain area where the water can be where it's perfect for this. The real reason, however, is because water droplets are round. So since when they're at a certain distance with light coming in at a certain angle, any droplets in that circle will project those colors to your eyes.
Why do obsessed fans develop the desire to kill celebrities or the object of their obsession and idolization?	I'm sure someone with psychology credentials will come up with a much better response, but my guess is that it has something to do with a sense rejection. These people "fall in love" with the people they are obsessed with and feel rejected that the feelings they have are not mutual. In extreme cases this manifests in a real world way but in many it's probably mostly imaginary or fantasized. Out of rejection-driven rage they get revenge by trying to kill their obsession and/or they attempt this based on the "well, if I can't have you then no one will!" mentality. In any case, I'm sure that there's also some undercurrent of jealousy in play as well.
Why does it feel warmer when it's snowing outside, compared to it just being cold without snow?	Bunch of wrong answers here Snowfall implies negative degrees celcius . As the temperature drops below zero, the humidity in the air quickly drops aswell. Dry air is much easier to shield yourself against than humid air. This is why 1 degree celsius above zero is such an awful temperature. You get all the cold with the humidity.
What are “non-free” packages in Linux?	Used in debian-style repositories and others, the non-free section refers to packages that do not have source code published under a "free" license. Such packages/software are distributed free of charge, but the source code is not available and/or users are not allowed to modify and create derivates of the codeLinux like to point out the distinction between "Free as in Beer" and "Free as in Speech". Open-Source software is supposed to be free as in Speech. You can still charge money for it, but if you publish software you have to make the source code available. Many open-source programs are also free as in Beer, as in, they don't charge you money for them. But there's no prohibition against doing that. When a Linux distribution includes "non-free", it means that the software in those repositories does not comply with that distribution's idea of what Free Software is.
Why does an explosion "suck in" the surrounding environment and then light up?	There are three different aspects to that that together form your "explosion": 1. If anything gets "hot", it starts to emit light. If air and gas get hot because of a chemical reaction and as such starts to glow we call that "fire". 2. If anything gets "hot" it expands its volume. If you make gas very hot, it expands outside and pushes everything away. That is what we call "explosion".3. If the gas in 2. got pushed away "fast" and "thorough" enough, the original spot has lower pressure than the area surrounding. If you want you can call that a weak vacuum. The air around flow back and if that flow is strong enough, it can "pull anything with it", i.e. the "sucking in" from the title. If you have a "lot of heat" very "sudden" - then the "expansion" and "lighting up" happens very fast. That is what we call "explosion". If it was very, very sudden, you also can get a "sucking" effect, but you need a really sudden explosion for that to be significant, the "throwing away" is usually much stronger.
Is there a scientific reason my room gets colder with less stuff in it?	When you've got a lot of stuff in your room, you've got less air in it. In the same enclosed space, it takes less energy to warm a smaller amount of air than a larger amount. So when you have less stuff in your room, you have more air and better circulation, and it takes more energy to warm it, and if you're the only source of energy, it's not going to warm as much, and will feel colder.
Why does my nasal sinuses clog up once I lay down to rest?	Nasal sinuses are essentially holes inside your skull that clog up with mucus when you have a cold. Each of these sinuses have an opening in them which allows the mucus to drain from the sinuses into your nasal cavity . Most of the sinuses have their drainage openings on the bottom of the sinus so when your head is upright the mucus can drain into your nose pretty easily via gravity. This means that when you are lying down, they tend not to drain so well and clog up.What is the best way to combat this? I ask because the past 3 nights have been hell for me. I lay down, finally fall asleep only to wake up an hour later unable to breath. I can hardly keep me eyes open today at work. I tried Nyquil, allergy meds, and same problem. I seem to have this once a year around winter time. I do go to my doc everytime, but he doesn't really offer any good resolution. Pretty much just deal with it. If the mucus becomes green and smelly to see him again. I did have allergy testing and the results came back as fine.
How Bi-Planes are able to time/shoot their guns without the bullets hitting the propellers.	While all of the responses so far are good , I'd like to try making this as ELI5/TL;DR as I can: The pilot's trigger is not really the same as a trigger on a handgun - it does not make the weapon fire. Instead, it works more like a safety - when pressed down the safety is off. The trigger is attached to the propeller - the propeller will pull the trigger each time it is in a position where the bullet will miss.As others have said they invented a gear to fire between the props. The machine guns were turned into semiautomatic guns that were fired by the props. The props would send a signal to the gun to fire when it was out of the way. This would fire 1 bullet. This technically means that they were no longer machine guns. However, there were other methods. One involved reinforcing the props with metal and angling them and just letting bullets hit them. This did result in planes shooting themselves down. Another method was to put the guns on top of the wing above the pilot so it fired over the prop. Another was to put in a second seat and that person would have a gun that could fire to the sides and rear.In the very earliest aircraft, they wouldn't shoot at all. Aircraft were used for reconnaissance, not for fighting, and pilots of aircraft on opposing sides would wave at each other as they flew past each other. Then, people started to figure out that, if they had guns, they could shoot down the other side's aircraft to prevent them carrying out their reconnaissance. But shooting had to be done sideways, so that you didn't shoot your propeller. Eventually, the [gun synchronizer] was invented. This times the gun's shots so that they went between the propeller blades, and allowed pilots to shoot forwards for the first time.In some earlier cases, there were actually wedges attached to the back of the prop to deflect bullets that were fired at the wrong time.
Does wearing a hat contribute or cause hair loss in any way?	You said in any way. Yes it can, if you have psoriasis, wearing a hat can trap heat and sweat, aggravating the condition. Which can cause temporary hair loss. Otherwise generally no.
If every company that has moved "hq" overseas suddenly had to pay the taxes owed to the US gov't, what would happen?	The better question is: why should we tax worldwide profits of corporations anyway? The taxes that they are avoiding by moving overseas are taxes on profit made outside of the US. We are alone in doing this, since every other country in the world only taxes corporate profit made within their borders. It doesn't make sense, and it puts American companies at a disadvantage internationally.
Is there a reason that some devices (like a remote) have their batteries installed in opposite directions, as opposed to a flashlight which does not?	When you put batteries in series , their voltages add together but the current stays the same. When you put batteries in parallel the voltage stays the same, but the currents add together. Installing the batteries in opposite directions is a way of putting them in series without having to have a really long thin stack of batteries. The top of one battery connects to the bottom of the next, and so on.It's just a matter of deign preference, having them in opposite directions Allows the wires that carry the power to the main board to be near each other, this is not as necessary with flashlights as they are more simple electrically.
How does carbon dating work if all of the atoms being tested were originally created in stars?	That's because the Carbon-14 was not made during the big bang, or even when our sun and the earth were formed. Carbon-14 is constantly being created by decay of Nitrogen-14 in our atmosphere. When something is carbon dated, it's dating the carbon that was created during the lifetime of that organism. Radiocarbon dating is really only useful for organic material, and only to about 50,000-60,000 years ago, due to the half-life of Carbon-14.Actually false, due to cosmic radiation, there is some nitrogen 14 which is converted to carbon 14 every year, which falls to Earth. It becomes sealed within the coin, though it is better at dating biological remains because life constantly absorbs carbon until it dies, but knowing how much carbon 14 is made in the atmosphere on average for a select period of time, we can date it since the point it was sealed.you carbon date living things, because a living thing has carbon 14, and once it dies the carbon 14 over time decays to carbon 12. you don't carbon date a coin, maybe some living material on the coin
Why are certain animals (e.g. dogs, cats) domesticated more commonly than other animals (e.g. deer, raccoons, etc)?	Dogs and cats are better suited for the tasks we give them. There is not a lot that a deer can do that something else we have tamed could do more efficiently. Although reindeer are used in extremely cold environments that would not be good for horses.Put a dog on a farm. What value is added? A dog will naturally protect it's territory from many animals that could harm crops. Cats kill vermin. Birds drive away predatory birds that'd like to eat your chickens. A horse allows one man to move a large load. A domesticated deer runs from predators and eats your crops. There's little to no value.
Why does it start to rain much more heavily immediately after thunder?	Thunder is produced in a type of cloud called a "cumulonimbus". In this type of cloud, air gets pulled higher and higher by the air currents. As it does so, its temperature decreases, and because cold air can't hold so much water in its invisible gas form, the water turns to visible liquid water droplets. Eventually these droplets get large enough that they can't be carried in the air current any more, and they start to fall. This on its own would be enough to cause rain. But what makes cumulonimbus different is that the rain drops get caught in further air currents on the way down, and get carried back up into the cloud again. The cycle repeats many times, with the rain drops going up and down many times, each time getting bigger. This movement results in droplets rubbing against each other and building up an electric charge, which is why we eventually see lightening and hear thunder. And the movement also results in the droplets getting bigger because they spend so much time in the cloud, resulting in heavier rainfall.
How does a song "grow on you" after a few listens	Our brains like repetition. We like being familiar with something. So after you hear it multiple times you "know how it goes" and automatically start liking it better.
Why, when I have a headache - If I bend over or bend down, the headache becomes instantly much more painful until I stand up straight again	Increased pain when you bend over or press on the area is symptomatic of a sinus-related problem, possibly a sinus infectionMaybe because more blood is flowing into your head due to gravity, which causes an increase of pressure in the brain.That sounds like a classic sinus headache - they're a little different to a normal headache but that's one of the tell tale signs. Once you've got one only caffeine, a super hot shower and painkillers will help. But you can work on minimising getting them. Read up on sinus headaches and good luck.
Why do University computers get a 200+Mbps connection while my laptop only gets 10mbps.	Gigabit speeds are pretty much restricted to wired connections. Shared wireless isn't up to the task.
How do mirrors have different levels of "zoom"?	By being curved - Convex mirrors have negative magnification, making things look smaller than they actually are. Car side mirrors are very slightly convex so that you can see a wider angle of view, which is advantageous when driving. Concave mirrors like those on a telescope are the opposite, having positive magnificationIts how concave or convex your mirror is. If its bent inwards it zooms, if its convex then you have that wide angle "things in mirror may be closer than they appear) view.
so why do companies make mail-in rebates?	People who are attracted by the rebate price and buy it, but never mail it in.The advantage is that the company still gets to advertise savings - Pay 200 get 100 rebate, that's just 100 dollars! - and still benefit from a substantial number of 200 dollar sales from people who forget or don't bother to send in the rebate.Lowering the price would give the manufacturer no information about who is buying their product. A rebate gives the manufacturer your address and usually your phone number, which can be sold to marketing companies. The rebate card will often ask some demographic information as well, such as gender, age, income level and the like. The manufacturer will use this information to target their advertisements to the appropriate audience.they work and are effective. Companies do not want they products being sold at certain prices because it cheapens the brand. See Apple. Another idea to consider is the online ads that want you to click to see the discount price. That is so website search engines will not pick up the discount price and start online price wars. On the other hand rebates are considered ok because it looks like the consumer is getting a better deal whereas in reality most people don't bother to send them in in time.
Why do people keep buying EA games if they know they will have to 'pay-to-play'?	Because EA games is the biggest player in the gaming industry and they make a lot of games. Remember that Reddit is a forum for people who have a problem. You don't hear the people who are happy because they are either downvoted to hell or too busy having fun to engage with those who are unhappy. EA is making an unbelievable amount of money off of these games, otherwise they wouldn't make them. A few people pissing and moaning on Reddit isn't going to stop them if the profits keep coming in.
Why are razor cartridges so expensive?	1. People pay that much for them2. Once you buy the handle, since each has it's own interface, the choice to swap razors includes more costs than just the difference in blade prices. 3. The major razor companies pay stores enough to ensure that only a few brands will fill the shelves. 4. Go check out Dorco Razors or old-style double edged razor blades, for much less expensive options.
The enormous salaries of professional athletes. When did this madness start? Is it a result of owners, players, or consumers?	Let me ask you this, what would you rather be done with the money? If the sport is making enormous sums of money, based on the efforts of the players, would you rather the money just go to the CEOs of the sports team? If you look at professional athlete's salary as a percentage of what the team makes, as oppose to how many dollars they get, it puts it in a much better perspective.Advertisers, TV contracts, sponsorships, etc have led to team owners making BILLIONS of dollars. Therefore, those owners will pay the players that can provide a successful product -- athletic play, game wins, etc.. -- millions upon millions of dollarsIt started when free agency came to sports. So what you are seeing is a free market for talent. Those teams pay those salaries because there is a very small number of people who can do what those players do, and to get the players the teams want, they have to meet or beat the financial offers of other teams.
What's it called when you have a memory of hearing something while looking at another source?	It's called associative memory. Any time you're remembering things, there's a whole lot of other potential activations than what you recall. Sometimes the connections are strong enough to pull a peripheral memory into full recall.
Why do we feel the need to use hand motions when talking even over the phone when the other person can’t hear us?	The real question is why we bother to talk on the phone in the first place when the other person can't hear us.
Why does it hurt if I drink through the nose?	We didn't evolve to drink through our noses like for example elephants. We evolved to drink through our mouths. We smell and breath through our nose. Water getting in our noses implies to our body that we might be underwater and getting water inside us, so we might be in danger of drowning. So the unpleasant feeling of water in our nose acts like a warning and motivation like "avoid this happening, get out of these conditions", instinctively directing us away from the danger of drowningBecause the lining of your nose is WAY more sensitive than that in your mouth. Also your throat has both the oesophagus and the trachea and stuff that goes in your nose generally heads for the trachea, which is also more sensitive than the oesophagus. Some of what you drink through your nose will hit the trachea before it hits your mouth and your swallowing opens the oesophagus instead.The body is evolved to register pain when water gets in the sinuses because it is extremely dangerous to get an infection, particularly from dirty water, in the sinuses. It can combat airborne pathogens fairly well, but water-borne ones are more dangerous. Worms, parasites, viruses, bacterium. All kinds of nasty stuff exists in water that can't survive in the air.
Why are stocks worth anything? (particularly ones that don't pay dividend)	As a shareholder you are a part owner of the company and are entitled to what an owner would be entitled to. In the short term the company may not have profits, or wants to grow the business so the Board of Directorsdecides to reinvest the profits instead. In the long term, the goal whether you're .00001% owner or 100% owner is to grow the company to a degree that you can pocket the profit. Also the shares themselves change value. As late as 2001 you could Apple shares for under 15 bucks. By 2011 they were over 400 dollars a share. A 40,000 dollar investment back then would make you a millionaire just in the value of the shares not to mention the 17,000 plus a year you'd be collecting in dividends. They've since done a stock split so their share price is much lower, but you'd have more of them.
Why isn't all internet data encrypted?	Encryption adds overhead, notably CPU time in encrypting/decrypting the payload and the accompanying latency of doing so. The vast majority of traffic gains no benefits from being encrypted, so it would be a waste of time and resourcesIt would be too much overhead, both on the server side and the client side. It is a simple task given a single email. But when there is a site such a imgur, the images and image encryption is quite resource intensive. The server capacity in terms of handling requests, drops down considerably. It would necessiate more servers and rack space. This finally boils down to money. You can, but does the need justify the cost?
What is with the fighting culture in hockey?	Your question's a little vague. If you're asking why do people like watching people fight in hockey, it's because it's entertaining in the same way that mixed martial arts cage fighting events and boxing are entertaining. People get a kick out of people kicking the shit out of each other, even if that's not the prime purpose of the sport. If you're asking why there's fighting at all in hockey, it's because it's a violent sport that requires strength and endurance to play at the professional level and is extremely competitive and makes players' blood run hot. If you're gonna play and win, one of your team's weapons is intimidation, and one of your own team members beating the hell out of some member of the other team is one way to either put them in their place or let them know you're not gonna be pushovers yourselves.
had a shower thought...why do the drawings you put in fogged glass stay there even after a session of defogging and into the reformed glass?	The oils on your finger stick to the glass and less water vapor will stick to the oily sections of the glass when you re-fog it.
What makes computer hacking difficult, and not something a computer itself does?	Well in some cases, it does. But that's another story. Consider what computers do: very simple tasks, very fast. They don't screw up. Now hacking consists, fundamentally, of finding cases where people told the computer to do the wrong thing. At a very basic level, this is a deviation from expected behavior, which makes it unpredictable. Computers suck at it because it's a difficult problem that can't easily be broken down into simple problems. Or in a nutshell, it is very hard to predict the unpredictable.
Why do some biscuits take longer to completely soak if completely covered by liquids instead of slowly dunked?	When you dunk the biscuit, the tea replaces the air inside the biscuit. The air has to be able to escape the biscuit for this to happen. This is easy if part of the biscuit is still dry, because the surface is porous. But when you completely dunk the biscuit the porous surface is covered by tea, which resists the passage of air. Try putting a handkerchief up top your lips and blowing through it. Then try it with a sopping wet handkerchief, and you'll see the difference.Bruh you talkin bout cookies bruh. Biscuit be like _URL_0_
How do us humans know how to have sex?	If nothing else, experimentation with sticking one thing into another and having it feel good. A penis and a vagina are located in the same general region and probably wouldn't be difficult to figure out that one fits the other pretty well. No contact with any other human being would likely also come with no stigmas attached to such experimentation.
Why, if I live in Jackson, MS, my Amazon package went from South Carolina to North Carolina (the opposite direction).	Not if it had to have it's own truck to do so. Most of the carriers use a "star and connector" model for delivery. For a long time, every fedex package that left it's "region" was routed through TN because this simplified logistics and made economic sense. Increased volume has allowed for more local replications of this model, but the same principle is used. It's better to have full trucks and planes then empty ones even if it means transporting a given package the long way.Yes, it would if they were only delivering your package to you. But in reality, your package is just one among many, and so it has to ride the routes. It is the same as when you fly to an out of the way airport and then catch a second flight to your destination. You just rode two popular routes that satisfy a lot of people, because you don't have your own plane to fly in a straight line.
Why don't cars sound like the explosions in their engines?	As others have said, insulation plays a great role - an explosion in a sealed box is not going to cause much displacement out of the box. However, there's another factor. Explosions are discrete when you have spaces between them. But what if they are really close together? A car going past you might have an engine running at 2000-4000 rpm - which is more like 33-66 rotations per second. It's kind of complicated but each rotation of the engine fires multiple cylinders - maybe 2 or 3 depending on engine type. So we're now talking about 100-200 explosions per second. This means that the explosions of the exhaust are vibrating the air at 100-200Hz . These frequencies are right in the range of human speech - 85-180Hz for males, 165-255Hz for females. It explains quite clearly why an engine could have a "Haaaa" sound - the detonations of the engine are pretty much at the same frequency as a person humming. This is quite remarkable - that the physics of an internal combustion engine would happen to provide for detonation at the same frequency as a human voice. Depending on how the physics of engines turned out it could easily have been super low to super high where a toddler could not make a "Brrrr" sound to imitate a running car - he/she would simply be unable to reproduce the sound. Needless to say, future toddlers might make no sound at all when playing with their toys since cars are rapidly turning electric and therefore nearly silent.Because cars have a longer exhaust pipe, which may be wrapped in insulation and the engine is usually kept in an engine compartment that's often insulated as well. Finally the exhaust pipes are connected to a muffler and catalytic convertor. All of that helps suppress the sound of the engine. A car with a cut exhaust is plenty loud.
How is online shopping safe?	For example, when I buy something online, the online shop uses my card details and uses that to take money from my bank account. So why can't they just randomly take large sums of money from my bank account? Is it all just based on trust? The bank account doesn't know any difference between "The customer just bought $5 of stuff, transfer the money to me" and "The customer just bought $2,000 of stuff, transfer the money to me". The vendor can easily fake large orders like this.
Why aren't we doing anything about the colossal amount of trash in the pacific ocean?	Because it isn't what people think. The Pacific gyre is filled with plastic, it's a huge problem, but the plastic is millions of tiny pieces suspended in the water. To 'do something' you'd have to filter billions of gallons of water without killing every living thing in it and then find some way to remove the plastic accumulation from the local biomass without again killing everything.
Why gas stations promote that their gas is ethanol free.	We as humans figured out a way to turn corn into a fuel-additive. It's cheaper but our current internal-combustion engines aren't really built to effectively utilize it. Like you're five You freakin\' love some mac \'n\' cheese and can eat it all day, every day, for every meal, and be fine. Mac \'n\' cheese is a bit expensive so Mom finds a way to mix in some 2% milk and not use as much cheese so she can save a few pennies. Only, your stomach isn't used to 2% milk, so you occasionally have cramps. And the milk doesn't provide as much nutrition so you require just a little bit more of it. EDIT: To angle this towards your original question: They're saying that their gas is better for your engine and not "corned down" with ethanol Because the energy content of ethanol is lower than gasoline. Heat causes things to expand, including the gases burning inside your engine that make it run. Lower energy content means less expansion, which means less energy makes it to your wheels. A 10% ethanol blend has only about 3-4% less energy than regular gasoline, but for some people this is a sticking point. I can go into a lot more detail if you want the non-ELI5 version. :)', "Also gas with ethanol is not good to leave in engines over a long period of time as it can gunk up or even corrode.
Why would the U.S. or its companies sell military technology it currently uses to other countries allies or potential adversaries?	Lets look at it this way. Israel, for example, is the US's ally, right? Generally speaking, the US and its allies have common goals and mutual interests, so Israel having superior American weapons means that they are better suited to pursue and/or defend their mutual interests. Secondly, allegiances are generally pretty strong. It's rare that a country with strong vested interests turns coat and dumps their current ally, so the idea is that they are safe. That being said, not all allies are treated equally. While the US might form an allegiance with Ethiopia, it might send or sell retired obsolete military equipment, but it probably won't send F-35s for the reason you suggested, that it may be vulnerable to intelligence breaches or the ally changing. Finally, allegiances are a tit for tat arrangement. Going back to Israel, they are firmly American allies, but its not always a smooth relationship. Lets say Israel is causing more problems on the Gaza Strip than normal. The US can say "We will withhold the next shipment of F16s until you guys take some heat off the strip." Or the other side, "Israel will continue to offer public support of American interests in North Korea, as long as you keep the planes coming." None of these analogies are perfect, but you get the idea.It is actually against the law for the US or companies of the US to sell a WHOLE range of things without very special permission, and for some countries, the answer is often no--like China--and always no for some - North Korea. This is why espionage and spying on technology is such a high stakes activity. Like here:_URL_0_ We also do not share everything, as a rule. Nobody else has the stealth bomber and in the meantime, the US continues to invent the next model even as the current model is getting launched. The US doesn't sell to unstable countries and usually what they get is something we've already left behind and can easily take out.
when resetting electronics such as a wireless router, why does the amount of time matter with regards to unplugging the device?	Most electronic devices have circuits built into them that "level out" the electrical current coming into it, to prevent the device from malfunctioning if there is a power surge or a sudden drop in mains voltage. That circuit has some electrical elements called capacitors in it. Those capacitors can keep a device running for a few seconds , even if the power is unplugged. This is where the wait time comes in when unplugging: You have to wait for the capacitors to discharge, or you haven't really done anything by unplugging. Very low power devices can run for significant periods of time on leftover capacitor chargeWhen you unplug an electronic there is some residual power left. The 10 sec. wait will ensure the device has fully turned offWhen you are told to restart your router, and leave it off for a certain amount of time, I promise you, its not a lie! Its for a reason! Specifically with a router, when it connects to your broadband service, it creates a PPPoA connection back to your ISP - Sometimes resetting this session can help with common internet issues, the issue is turning your router off and on again doesn't let the session drop totally, and when you switch stuff back on, you are still on the same PPPoA session. Switching it off and waiting 10+ minutes and then turning everything back on lets you pick up a new session, and hopefully resolve slowness issues, ect. So the next time you call your ISP if the internet is slow, and they give you "Turn it off for 10 minutes, then turn it back on" they are not trying to lie to you!', "It's 2016, why do I have to continually reset my router?
Why does a single repeating drip of water drive us crazy when a small trickle of water does not?	A trickle is a constant noise and is easy to cancel out. A drip is catching your attention every 5 seconds because there is silence in between the drips. This makes it hard to focus on anything else which is more and more frustrating for each drip.The dripping water torture thing is probably overrated as to its effectiveness. But anyway, if you really want to drive someone bonkers what you need is an irregular drip so that each time it catches them unawares . And how do we know a trickle isn't as effective as a drip over hours or days without any data?
Why do I feel sharp pains in my pelvis and ass when I see videos of people getting hurt?	I've tried to research this and not come up with much, but I've been searching for a sensation between my navel and solar plexus.
If I froze some ice at -10 degrees and another piece at -50 degrees, would the -10 melt faster because its less frozen?	It would melt sooner assuming they are both heated at the same rate, yes. One piece of ice would need to absorb 10 degrees C of heat to start melting, and the other would need to absorb 50 degrees C of heat.
Why do we have that special attachment to our own bed?	It's because we spend fully one-third or more of our lives in it. We sleep in it almost every single night. When you see something or do something that often, it becomes familiar. when humans become familiar with something they grow to like it and the attachment often grows the longer it goes on. Think about the foods you loved as a kid. You probably are it a LOT, and that's one reason you love it, because you are it so often that it became familiar. It's the same way with your bed
How can Donald Trump, a man who regularly makes obscene statements and engages in twitter insults, be at the forefront of Republican nominees running for president of the United States?	A large part of it is that Americans are very tired of politicians that pussy-foot around topics, pander to the political wind, and are percieved to be beholden to their campaign donors. Trump is percieved to speak his mind honestly, and he's rich enough that he isn't dependant on campaign donations from special interest groups. This is refreshing compared to what Americans have come to typically expect from politicians that refuse to address issues directly and speak a thousand words without actually saying anything. Note: I do not particularly support Trump, and several of his possitions conflict with my political values. This is meant as an explaination of my assessment of his appeal.
What is a spider doing when it sits on the wall for an extended period of time?	In a parallel universe, on spidereddit: "What is a human doing when it sits in front of a screen for an extended period of time?"Waiting for food. Spiders have a super-slow metabolism, and part of the reason why is because they just kinda sit there and chill in between meals. This allows them to go for days/weeks without eating if they have to.The spiders that are allowed to inhabit the upper corners of the room are generally of the more wispy variety. Every now and then I'll brush back a percentage of their web just to assert my dominance.
Why are bus steering wheels (nearly) parallel to the ground whereas car steering wheels are (nearly) perpendicular to the ground?	Professional bus driver here. It has to do with the angle of the rod that connects the steering wheel to the tires. Since the bus driver is much more elevated and basically sits directly above the tires the steering wheel needs to point almost straight down in order to connect. The driver of a car sits behind his wheels and as a result, the steering wheel is at a different angle. Here are some diagrams to better explain it. The first one is a bus, the second is a car. _URL_1_ _URL_0_ Side note: In most newer buses you can adjust the steering wheel to make it more like a car's.Because with a horizontal wheel, you have much more leverage to turn the wheel. This was necessary in a time before power steering was implemented, and is still done because power steering can/does fail sometimes. Another reason to keep it that way is the air ride "bouncy" seats would make it very uncomfortable to have your knees beneath a vertical steering wheel on a bumpy road.I have a vehicle where the front wheels are directly under me, though the steering wheel is angled much like a car's, not flat, and the steering column goes to the front, not down. There is a gearbox that handles the transition of the steering column to steering the wheels. So I am not sure the angle argument makes sense. I suspect it's more about visibility, keeping the wheel low and out of view. Source: VW vanagon driver .
Why does it feel like your heart is in your throat when you're nervous/anxious?	You have major veins and arteries with blood pumping to and from the heart in your neck. What you're feeling is the increased blood pressure from an increase of blood flowing through those veins and arteries in your neck.
Why is it that when I fart while wearing pants and sitting down it feels like there is a bubble moving between my jeans and skin?	My guess is that it is an actual bubble. Fabric can contain gasses , so it might very well be that a bubble of gas lifts the fabric from your skin and moves until it comes to a place where it can freely escape into the air and poison you enemiesIt feels like a bubble because it is a bubble of gas. What more do you want to know??', "You're worried that what is holding the gas in bubble form is liquid poop. Don't worry, most of the time this isn't the case. What happens is your butt cheeks are pressed together tight enough to form a seal . The gas is moving between your cheeks and forms a bubble between them.
Why have Washington and Colorado not released people imprisoned for pot?	Because those people committed crimes. Just because something is legal today does not suddenly make them not-illegal when the crime was committed. The flip side of this is that you can do something that's legal today and not be charged when they change the law next week.
Why can small creatures such as Ants lift things much larger than themselves?	There's an mathematical law that pops up in nature called the [square-cube law] which simply states that as an object gets bigger, its volume increases faster than its surface area by a factor of a cube compared to a factor of a square. This is relevant to biomechanics because muscles get stronger according to their cross sectional area, which grows with the square of the radius of the muscle. The volume of the muscle grows with the cube of the radius of the animal. This means smaller muscles are proportionally stronger per unit weight than larger muscles, because the volume shrinks faster than the cross sectional area. Other small animals use hydraulic pressure and not muscles to move, but the explanation is the same.
When you look at someone welding, it hurts your eyes. Why is it that when you look at a video of someone welding, it doesn't hurt your eyes?	Welding torches emit ultraviolet and infrared light, which can hurt the eyes. Since cameras are only designed to pick up visible light, and monitors are only built to display visible light, UV and IR don't get projected by the video.
Why are rocket scientists considered some of the smartest people?	The USA went through a period where we were racing with the Soviet Union to make milestones in space exploration. During that time there was a huge amount of government investment and public expectation toward the field, and this attracted the best of the best in many fields toward constructing the technological marvels that space rockets are. A rocket scientist would need both advanced education in engineering and physics, and was afforded generous salaries and social benefits for their contribution to the space race effort. This reality of such a person's value to society fueled the birth of the saying.Because the amount of thought and work that goes into making a rocket to go to outer space is mind-blowing compared to the amount that goes into most other jobs.
The existence of North Korea	NK is still a place because it is a country. China hasn't taken them over, because Russia and China have diplomatic ties with NK. They may not be good, but there is ties. As others have said, they gain nothing from taking over NK.
Why buying a new car is a negotiable price instead of being a fixed price	Because in any business, if you're fighting for one dollar and ended up losing ten because of it, you'll get fired. So they're not gonna lose ten-whatever thousand just to save one or two. With cars, there's a minimum price that they have to sell at . The sales person then has that margin of trying to get the biggest profit possible with that car, and even if you go for barter the fuck outta the car and manages to make a massive saving, they're still making the intended profit. You're not actually losing them any money by negotiating, you're just doing yourself a favour.Car salespeople have a certain leeway in their selling price. The less they sell it to you for, the less commission they will get. That being said, little commission is better than no commission. There is also competition in car sales - both between brands & between one brand. One brand of car can have multiple dealerships in the same city, or another dealership in a town close by. Since these dealerships want to make money for themselves, they will want their prices to remain competitiveYou can negotiate anything, but most people don't bother negotiating on a small ticket item. I can walk into most retailers and negotiate the price down with a "price match", for example. That's basically saying "I can get this cheaper elsewhere, what can you do for me?" There is such a small margin on lower cost items, so there isn't a lot of room for negotiation.
Does the earth 'leak' into space?	it does, solar winds strip little bits of our atmosphere away, we lose a few tons every day. some is replaced by micro comets/asteroids. net net its relatively small, and does not pose a threat to us on geological time scales ', "Yes. Light gases like hydrogen and helium escape quickly into space because earth is too small and warm to hold them. Heavier gases like oxygen, nitrogen, and carbon dioxide slowly get stripped away by the sun's intense radiation, but can't escape on their own. The Earth replenishes the atmosphere periodically with volcanic gas emissions and biological actions, otherwise it would eventually get whittled down to just the heaviest and most stable gases that are hardest to strip. See mars for an example of a planet that didn't replenish the atmosphere very long and wasn't massive enough to hold on against the solar wind.
Why does the cold cause your teeth to chatter?	It's your body shaking to attempt to make you warmer, the teeth chattering is just a side effect of the shaking", 'You shiver when you are loosing body heat. The shivering is the way your body attempts to generate heat.
What causes your body to feel different types of pain? From toothache to paper cut to sunburn, why does the physical sensation vary so widely?	Your brain is responsible for different types of pain Your brain 'knows' where the pain is coming from and associates it accordingly. Its a useful feature to have because if you say, get scratched by an overzealous cat across the face, you need to be able to differentiate the pain to know what is hurt. If pain was just general, you wouldn't be able to differentiate what was broken, and possibly miss important stuff to treat. The other variable is the strength of the signal. A broken leg hurts worse than a paper cute because more pain nerves got activated in the accident, you brain interprets that to mean more sensation of pain. Those 'levels' of pain is your body's way of telling you how 'bad' your injury is .
How does Canada have access to US citizens criminal records?	Your criminal record is public information in the United States, barring circumstances like being a minor at the time or some kind of conditions on expunging it. It's not just Canada that can see it, anyone can see it if they ask.> Is the USA providing this information to Canada? Short answer is yes they are And it will be a treaty or something signed between the two countries on what they share with each other. You probably find Canada shares the same info back
why rappers like soulja boy who are awful at rapping are still rich off of one hit wonders?	The same reason movies like Transformers are made Basically, record companies need to hedge their bets. Now, all record companies have people in them interested in producing quality music but they still need to return consistent profits. It's very hard to find high quality acts that consistently, because generally their music takes a longer time to produce and they are harder to find but most importantly, they only appeal to a particular niche market. Someone like Soulja Boy can make music that, although very few people actually think is good music, a lot of people can listen too. Like McDonalds, it appeals to everyone but not particularly to anyone. This makes it ideal music for large nightclubs and any other place with a large group of people with varied music tastes. This is why Baauer is signed to the same label as Zebra Katz and Duck Sauce to the same label as Action Bronson. Every label needs people on it who can make music that everyone finds tolerable at a party
Why do i have to cough when i'm cleaning my ears?	Its because the two areas associated with the sensations are so so close together in the brain that ower-sensation can trigger the other. It will take a few seconds of cleaning before the cough is stimulated. Not everybody has this, but another common example is people sneezing when the pluck their eyebrows. The area associated with the pain sensation of hair plucking is right next to the sneezing mechanism, and so it sometimes triggers a sneeze!ive never had this happen before, is it normal to cough when cleaning ears?', "Either I'm not normal or you're sticking them qtips in wayyy too deep
What are saccades, and why do eyes need them?	A saccade is a quick, jerky, near-instant movement of the eye. The speed can't be controlled; the muscles controlling the eye move as fast as they can. One popular suggestion for the necessity of the saccade is that the central part of the retina, called the fovea, that provides the clearest, sharpest vision, is very very small. By jerking the eye from point to point to point, the brain can build up a map of the areas the fovea's passed over and thereby get a very detailed picture of what it's seeing.

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