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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 c... |
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 we... |
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 w... |
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 beh... |
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... |
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... |
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 wit... |
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 ... |
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 th... |
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 bo... |
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 ar... |
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 matte... |
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 o... |
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 o... |
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 illnesses**Source:** 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 w... |
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... |
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 r... |
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... |
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 ... |
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 car... |
- 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 w... |
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 refl... |
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 proh... |
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... |
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 t... |
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... |
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 u... |
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 l... |
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... |
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 cert... |
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... |
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... |
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 li... |
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 o... |
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 s... |
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 upr... |
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 -... |
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 mak... |
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 st... |
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... |
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 protec... |
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 th... |
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 nor... |
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 magnificat... |
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 rebat... |
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 unbeli... |
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 ol... |
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 ... |
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... |
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%... |
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 s... |
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 p... |
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 mak... |
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 passa... |
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 at... |
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 thi... |
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 runn... |
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... |
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 a... |
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 ex... |
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 prett... |
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 runni... |
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 effecti... |
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 ... |
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 intere... |
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 witho... |
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 wheel... |
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 wa... |
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 cr... |
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 marvel... |
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 p... |
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 s... |
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... |
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 wil... |
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 thei... |
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 a... |
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 v... |
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