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Why people don't like Yelp. | Yelp has recently become a bit extortionist in regard to which reviews they show. Business that are Yelp-members may have the couple reviews that show by default be very high ones, even if the majority of their reviews are poor. Additionally, companies that choose not to become members will show poor reviews, even if m... |
We helped the Jewish people tons after WW2 , even helping with establishing Isreal. Why have we not done more for Poland who lost 6 million people as well? | Mainly because the Soviets took control of Poland and there was very little the US could do without starting another war.As others have said, Poland fell under the Soviet's influence. You will notice a trend that countries that fell under Soviet influence suffered and to this day many have not been completely rebuilt. ... |
Apples iTunes user agreement. | You can't use it in the production of nuclear or chemical weapons.Just your general "Don't pirate shit or we ban you" kind of agreement, but they have to use loads of big lawyer words because they're dealing with big name record companies. Not much interesting stuff in there, and nothing even remotely sinister. Source:... |
Why can we hear ourselves clearly when yawning? | there's a tiny flap in your inner ear. it needs to be closed for all the vibrations to work properly, but it opens so the pressure inside can match the pressure outside. yawning opens that flap causing your ears to "pop", and making it nearly impossible to properly hear until it closes again. you hear yourself through ... |
What's the difference between a community college and a university | Community colleges tend to be two-year programs. They usually are required to accept anyone who applies and who has a High School Diploma or GED equivalent. Because anyone can get in, they're academically a little less rigorous than more selective universities. It's not that what *you* are learning will be worse, so mu... |
when you squish a bug, why does yellowish goo come out instead of organs and red blood? | Some insects don't use the same oxygen transport molecule that humans do, instead preferring other molecules that are yellow, green, or blue in color. When you kill them, the blood is greenish. Many species do have red blood though, they're not all the same. Organs are tiny and well secured to the inside wall of the ex... |
- The Lie Group E8 | A group is a set of things with in operation. Think like addition or multiplication: it takes two objects, and spits out another object. This operation satisfies some properties. The set of positive and negative numbers with the operation of addition is an example of a group. A rubiks cube is also an example of a group... |
Why are the populations of India and China just so huge? | As far back as we can reasonably record, India and China were massive civilizations containing the bulk of the world's population - they're both excellently suited for large-scale agriculture.Rice, rice, baby. Of all the pre-industrial food crops, rice provide about the best calorie/acre ratio. At the same time, rice i... |
How do researchers find "Patient Zero"? | Contact tracing. Ask everybody who is sick who the have been in contact with, where they've eaten, etc. test all those people, and eventually you'll find someone who was first . With something like ebola, where the symptoms are relatively clear, it's not difficult to find somebody who knows somebody until you eventuall... |
Why do raisins taste so much different than grapes? | A lot less water. It's sort of like asking why beef jerky tastes different from regular beef. |
What's the point of a $5 minimum balance in savings accounts? | The bank does this to avoid people just leaving their old savings accounts with no balance on them. Maintaining the account takes a tiny bit of work and the bank does not like that people have a lot of unused accounts that they have to keep track of. $5 is a high enough sum that people care about it and take two second... |
Will my solar panel be a backup? | Probably not. Most grid connected solar systems will automatically shut down if the grid power is lost. This is to prevent danger for anyone who might be working on the lines. Off the grid systems are generally tied to banks and banks of batteriesUnless you payed extra for it then no. You need something to regulate the... |
why is the risk of poisoning higher in chicken than red meat? why can't chicken be cooked at different levels like steak? | It has to do with the bacteria. Beef only has bacteria on its surface which is why you can have a steak [Pittsburg Rare] if you want too. Chicken and Pork both have bacteria through out the flesh of the animal so you have to fully cook them. |
when people say certain foods "strengthen" the immune system (like garlic?), what does that actually mean? | Mostly old wives tales. Sometimes simply filling deficiencies you have day to day that interfere with your body doing a good job of fighting disease. But the placebo effect is real so keep at it if it helpsUsually nothing. If there was an easy way for your body to fight off infection even better, it would already be do... |
why does sucking the helium out of a balloon make our voice sound cartoonish? | Helium is 6x less dense than air, when helium passes over your vocal chords it causes them to vibrate in such a way where it makes your voice higher. Similarly many people will inhale sulfur hexafluoride which has a density 6x greater than air, this creates the opposite effect!Helium is lower density than normal air an... |
How come math teachers don't teach how to calculate square roots by hand and this operation is not considered useful after learning how to square a number? | Various reasons: * You need to add/subtract/multiply a lot more commonly. So it makes sense to teach you how to do that by hand. * Add/subtract/multiply have relatively fast methods to get the answer* MAJOR REASON: Square roots are almost always irrational . It's pointless to try to write that decimal out. √2 is more e... |
How do people living in poverty afford rent downtown? | Homeless people you mean? If they're not homeless, there are always run down buildings that don't get caught up in downtown gentrification. The high rent downtown scene was not always like that in most big cities, it's only been maybe the past 10-15 years that living "downtown" has become desirable to people with more ... |
The logistics of Google updating their logo so quickly. | Web pages aren't stored as one big word-document style file. The images are stored separately from the actual web page file. When you put an image in a web page, you're basically just leaving a note telling a web browser where to find the picture you want. Since the images aren't actually built into the web page, you o... |
Before pressing it, how can you tell if the space bar will pause the video or scroll the page? | It depends on if the last place you clicked was in the page, or in the video frame. The video player itself is a small contained script/program. If you clicked on the page itself, the browser registers it as input for the website you are viewing. If it was in the video, the program running inside the browser gets prior... |
What exactly happens to trees when you take their bark off? | A tree's bark acts as a barrier to protect the sap wood from the elements, insects and bacteria. Removing it, creates an opportunity for insects get in and damage the tree. |
Instead of telling me that "this action cannot be competed because the file is open in the system", why doesn't Windows tell me *WHAT is opening it? | Okay, this is just a guess.. Applications in Windows often have quite complex interactions. To read a file, a program can run another program, which can call a function in a .dll, which calls another .dll to actually open the file. Your desktop could be running a widget, which could use Internet Explorer to render a fo... |
How come people drown in water and yet are usually found dead floating? | The answer is that after death, bacteria do not die, they form gases, often using the dead tissues as a base. Basically, rotting people form gas. That floats us. |
Why is "she" used as a third person reference in textbooks to replace he/she? | Writing he/she is considered awkward by many authors. So instead, they'll alternate use of he and she between the chapters. |
What does migraine/epilepsy do? | Migraine headaches and epilepsy are two very different conditions. Migraines are painful conditions where the brain experiences discomfort to the point of pain and possibly disorientation, although you can still partially think and function in most cases. Epilepsy is like a lightning storm in your brain where a seizure... |
Why do some stores have their merchendise thrown out with strict orders to not let anyone buy any for a cheaper price after. | In some cases it devalues their product. It makes since they can't give it to would be customers or else the customers would just wait till closing and take free food. That said I have no clue why they can't donate to homeless shelters etc. |
Why do concept cars look really futuristic like something from a Sci-Fi movie, yet the actual road cars they develop into look like normal/standard cars? | It's a different kind of marketing, targeting investors. You want to show off your company as being cutting edge, and cool. You're right that emission standards get in the way of the final product looking that cool , but if their concept cars weren't as "cool" as the next company's, they 'd lose investorsThe sleek futu... |
What's happening when something acidic (i.e. lemon juice) touches an open sore? And why does it hurt so bad? | Our body is more or less a neutral pH, being somewhere between acidic and alkaline. Its not to say our ENTIRE body is neutral as denoted by the term stomach acid. The difference in pH can influence things like transmission of nerve signals. At a lower pH the chemicals that signal pain can flow more easily and freely ca... |
How do babies gain so much weight with so little protein? | People don't need *that* much protein to grow healthy tissue. Babies and children get plenty of protein from regular-ass food . Breast milk has a lot of protein, as well as fats, carbohydrates, vitamins and minerals, which you also need to make killer gainz bro. You could argue it's the most "well-balanced" diet out th... |
Why does liquid helium flow against gravity? | Liquid helium does not flow against gravity unless it is cooled to a point where it becomes a "superfluid". The point at which it does this is called the "lambda point", and is about 2 degrees kelvin- *very* cold. When helium becomes "superfluid" it achieves a state of zero viscosity . It can then flow over surfaces su... |
How does apple cider vinegar help digestion? | The short answer is "it doesn't". Nearly all the claims of apple ciders effects on health are unsubstantiated by rigorous science at best and pure fabrication at worst. You are correct in that a base is required to neutralize an acid. As such, *if* apple cider vinegar has any effect on digestion, it is definitely not t... |
Why does cold air smell different than warm air? | Warm air is more humid, so the moisture soaks into absorbent stuff around you , which causes different smells to bloom. Now, warm air is also more humid because it can "hold more stuff", if that makes any sense--more can be dissolved in it. So in warm weather, scents will be held in the air rather than staying on their... |
Why do people have to push the crosswalk button after they know its already been pushed? | There's no relationship of trust between you and the individual pushing the walk button for the second time so in their mind - you may have done it wrong, and the only way they can verify that the job's been performed properly is to do it on their own. |
Why are my car key buttons disabled when it's in the ignition | > Why are my car key buttons disabled when it's in the ignition To prevent people from accidentally pressing buttons when turning the key in the ignition. Because the trunk accidentally popping open when you start your car is something that most people would like to not be physically possible. |
Stocks that don't pay dividends | There are two types of earnings you can have by holding stocks: capital gains and dividends. Capital gains are when you buy the stock at one price and sometime in the future you sell it for more. Thus, if you sell it for less, you have a capital loss. Dividends are when the company pays part of its earnings out as cash... |
As a woman, why is it that I can painlessly poop but I cannot have anal sex without crying in pain? | Poop is slippery and malleable. Not so your partner. Lube can help with the slippery part, but the size isn't adjustable.When you poop you relax the muscle. My gf tells me she "pushes" like she's pooping when I'm sliding in. Then she just relaxes and I wait for her to adjust for me being in herits not just a female thi... |
Why do some peoples beer bellies/belly fat stick out hard like a pregnant belly while others hang down? | Beer bellies which protrude are caused by fat building up around your organs, inside the abdominal wall . That's where the uterus is, too, obviously. Hanging belly fat is sub-cutaneous, meaning just below the skin. Men are more likely than women to have the fat around their organs, and that fat is more likely to cause ... |
why does antipsychotic medication mess with motor function and cause the body to tense up? | The movement issue is specifically related to Dopamine. In Schizophrenia it is believed that dopamine transmission is over active in the pre-frontal cortex . In the basal ganglia , Dopamine signals trigger start of movement. An ideal anti-psychotic drug would reduce dopamine activity in the prefrontal cortex but leave ... |
How has it been decided that the second amendment applies only to guns? | The simple answer is the Court hasn't addressed the issue yet. Incorporation of the Second Amendment is recent , and a case involving other arms hasn't worked its way up yet. In my view, knives are the most likely arm to be challenged. We know at the time the Second Amendment was drafted that many men carried knives. S... |
Why does Japan have such a low birth rate compared to the rest of the world? | Its birthrate isn't appreciably lower than that of most European countries. Greece, Spain, and Italy are 1.3 children per woman Slovakia, Poland, and Portugal are 1.4 children per woman Switzerland, Luxembourg, Austria, Hungary, Ukraine, Germany, Serbia, Croatia, and Bulgaria are 1.5 children per woman. Japan is also 1... |
Why do Dead animals stay preserved in alcohol instead of rotting like it would in water? | Rotting doesn't just happen, bacteria and fungi have to breed in the dead tissue and start consuming it. Alcohol kills them all off. If the environment around the body is too cold, too dry, too oxygen poor, or too toxic, the decomposers die too and the body is mummified. |
Why do some conservatives and neoconservatives see the 17th Amendment (popular election of Senators) as such a crucial failure that needs to be repealed. | Many conservatives are strict constructionists who, in addition to disliking reinterpretations of our charter of government in general, saw the indirect election of senators as being a hedge against "the tyranny of the majority" and ensuring that states retained more power.Far-right conservatives tend to be big on stat... |
The difference between local banks, national banks, credit unions, etc and why should I care? | Generally, anyone can open an account at local or national banks. If you travel, it will be easier to get more cash from your accounts/find a bank/atm if they are with a larger chain. Think about it like your favorite local restaurant vs McDonalds. Both provide the same general services, but their actual products might... |
What is gerrymandering and why do we want it gone? | Gerrymandering is altering voting districts to favor one party. For example, a region can have 60% of people supporting one party, but if the district lines are carefully drawn, the party with 40% support can win more districts in the region and therefore more sway in regional politics. _URL_0_ |
Why do Windows drive designations start at C? | A and B used to be used for floppy disks. After they were no longer a thing, C stuck around because people were used to it. A very basic explanation, I'm sure others will correct me and you could also ask Google for much more information. |
What's stopping a vertically positioned phone from taking a horizontal video? | It could have to do with the orientation of the camera CCD and the lens, camera optics. The CCD is a grid of light sensing cells that translate light intensity into electrical signals that can be digitized into a number. A CCD capable of landscape resolution video isn't going to be square, its going to be wider in the ... |
How can I make sure I'm using proper posture when standing or seated? | The only way is through your body's innate sense of which body parts are where. Stand with your back against a wall. Place your head, shoulder blades, lower back, and buttocks against the wall. Try to remember how it feels when all your joints are straight like so. Then later when you sit or walk around, try to |
Do our bodies naturally toss and turn in our sleep to subconsciously avoid pressure ulcers/sores? | Yes exactly. Our bodies are wired to move on occasion while in sleep in order to avoid pressure building up in the same spots which will lead to ulcers. We learned this in my CNA courseYour body automatically tosses and turns to adjust your spine into a position that is comfortable so you dont wake up sore in the morni... |
Why do musicians and authors seem to do their best work when they're younger but their work seems to become "stale" as they get older? | 1. You've heard their style before, so it's growing stale to you. 2. They used all of their A material when they were younger and trying to break into the scene. 3. As musicians become more popular, they have to give up creative input to please producers.I forget who said it, but you have "your entire life to write you... |
Why don't we prescribe placebos? | It's grossly unethical to knowingly prescribe and charge money for a product that doesn't actually help. That a certain percentage of people would self report some minor improvement doesn't negate this fact. That's one reason why so many people are angry with, say, homeopaths.Prescribe? No way. Over the counter vitamin... |
How the universe was created | Are you asking what caused the Big bang? No one knows.I'm not sure, but it has made a lot of people very angry and been widely regarded as a bad move. |
How do banks refund fraudulent purchases on your credit card? | To add, in the US, there is a maximum customer liability of $50 dollars for fraudulent purchases. Anything more than that has to be covered by the institution offering the card. Since fraud is often much more than that limit, most companies waive the whole amount as a courtesy, knowing that it buys them gratitude from ... |
Why do we get scared even when we know something is coming, like a bad scary movie or the damned toaster? | Not scared, startled. This happens because your brain's job is to protect you A sudden noise causes a reflex that protects the most vulnerable areas of your body. Doesnt last very long, but long enough to make a difference if something happened just then. Your brain doesn't take chances with this sort of thing. It will... |
What's the difference between antidepressants and anxiety medication? | > Holy crap, this was enlightening. It's like you came from the heavens for the sole purpose of ejaculating vast amounts of knowledge all over me. > And I expressed gratitude for your answer. I'm serious. I 've finally reached zen state because of you. This sounds like an utter troll. I'm sorry but clearly with the nam... |
Why do objects that are wet look shiny? | Water fills in all the tiny dents and cracks in a hard, rough surface and creates a smoother, more reflective surface. Both surfaces reflect, but the uneven dry surface just bounces light around randomly instead of creating a clear reflection. |
How Being Good Looking Works | Your bite becoming misaligned would change the symmetry of your face. Much of what we find attractive in the opposite sex involves symmetry. You wouldn't be attracted to the most beautiful woman in the world if her left ear was three inches too low. So changing the symmetry is probably the problem here. There's a subre... |
Do generic drugs (generally) have the same efficacy as brand name drugs? If not, why not? | Same ingredients, same results. Placebo effect might lead you to believe otherwiseThey are exactly the same as name brands. generic acetaminophen is tylenol without paying for the tylenol name.In Canada, like with most other countries, a generic drug has to be bioequivalent that is if you take the generic drug and the ... |
how a currency's 'value' gets determined with inflation and exchange rates. | By how much people are willing to pay for them. Currency exchanges are like a never ending auction. One guy might offer $1.36 for a euro, while another might want $1.37 for it. Eventually one of them budges, and it gets sold for say $1.37. They take into account inflation and investment opportunities when making their ... |
Why do women get so mad when you accuse their emotional outbursts on their period? | It invalidates whatever they are upset about. Its dismissive and rude. It also, in my experience, is said mainly by those who have no idea if said woman is menstrual at the time as well.You're suggesting that their feelings are irrational and unimportant. |
The science behind self balancing bench press bars? | Can you please provide a link to the thing you are asking about? An article, photo, for-sale page, etc.? |
How do domains work, like .com .ru? Why can sites like discord use a custom domain like .gg? | .gg isn't a "custom" domain. It's a top level domain registered to "the crown dependency of Guernsey" . The little small countries like Guernsey have TLDs allocated to them and then they can either hold on to them or turn around and sell domains registered under their top-level domain and make some money off the dea. |
What happens to your vocal cords when you lose your voice? | Yo ho ho! Yer not alone in askin\', and kind strangers have explained: 1. [ELI5: How does losing your voice work? ]1. [ELI5: What happens when you lose your voice? ]1. [ELI5: What happens when you "lose" your voice? ]1. [ELI5: What happens to our vocal chords when we lose our voice? ]1. [ELI5: what happens when you "lo... |
How do companies like Google able to get permission to put satellites into orbit? And what keeps satellites from hitting one another while in orbit? | They get permission from the relevant body within whatever country they are launching from. In America that would be the [FAA Office of Commercial Space Transportation]. The answer as to how they avoid running into each other is twofold: 1: International cooperation. If you have enough cash to fund a satellite you are ... |
How does exposure to negative decibels affect the human body and psychi? | the thing with decibel is that it isn't a linear, absolute measurement of sound pressure. it's a rather subjective measurement, 0 is a reference point. negative decibels are sounds exponentially quieter than the reference point - usually sounds quieter than we can hear. negative decibels are just really really quiet so... |
What causes those sudden moments when you realize you exist? | Your cortex, the most advanced part of the brain that separates us from pretty much all other animals. The cortex is capable of such things as planning and reflection, which is why we are so advanced and also why you sometimes have moments where you suddenly operate almost entirely inside the cortex and are observing e... |
What's the science behind the weird, completely illogical thoughts I have while falling asleep? | Just like you are left with noise when the signal of a camera, TV or radio is too low, the randomness is the "background noise" of your brain. When we are about to fall asleep, the conscious part of the brain is "turned down". This makes us more aware of the noise. Personally, I like the random thoughts. It means that ... |
Why can there only ever be 21 million Bitcoins? | The original creator designed it that way. Think of mining for Bitcoins like solving for a polynomial equation. If I give out the equation x^2 - 3x + 2 = 0, and give the first person who finds each unique solution a Bitcoin, only TWO people in the world can get Bitcoins. There are only two solutions to that equation, x... |
SATA, PATA, SCSI, SAS... are these different types of hard disk drives, or buses, or interfaces, or just industry standards... I'm so confused! | A hard drive has two major component subsystems: 1. The platters, along with the mechanism that turns them, read/writes the data, and takes care of all the physical aspects of the device.2. The controller board, which *interfaces* between the physical/magnetic storage system in item 1 and your computer. Since different... |
Why does the difference between 70 and 80 degrees Fahrenheit feel greater than -10 and 0? | It has to do with relative differences. Let's imagine you're in a car, and currently you're parked . Great. Now really hit the gas and accelerate to, say, 10mph. Wow! You're really moving now! You can easily tell the difference by looking around; your surroundings are moving a lot more than they were a moment ago when ... |
Why do some jokes lose their funniness after the first time, while some jokes make you laugh every time you hear them? | Laughter does not happen just because something is "funny" but because of surprise and unexpectedness. After you hear a joke, the punch line is no longer unexpected, so it's less humorous.There are different kinds of humor. Some things make you laugh because they are unexpected . Other things make you laugh before it p... |
Why do tennis balls come in pressurised containers? | The air pressure inside the rubber balls tends to leak out over time, unless surrounded by equally pressurized air. |
Why does NASA and other space agencies launch their rockets pointed straight up, at a dead stop? (MIC) | One of the most fuel-intensive things about getting into orbit is trying to overcome atmospheric drag. It really kills your fuel efficiency. So launches start by going straight up in order to get through the thickest part of the atmosphere as quickly as possible. As early as is practical, the vehicle then executes a [g... |
Why when you cut yourself with something sharp accidentally it hurts more when you see a wound? | It's mind over matter. Your brain makes things worse than they actually are, in almost all circumstances. It's the real reason why people can't do their exercise plans: if they thought they could do it, they could do it. But they think they can't, so they can't. It's the same with your cut. Your mind assumed it was jus... |
Why sometimes people have a single hiccup and at other times a never-ending series of hiccups? | Hiccups occur due to an irritation of the diaphragm such as eating too quickly or drinking a liquid too fast. When the diaphragm is irritated it contracts trying to pull air in while the voice box and glottis contract and close the airway causing the "hic" part of hiccups. It can be caused by a malfunction of the neura... |
How we don't have the technology to equip a rover with a color camera. | It does have a color camera. We didn't want equipment damaged during descent, so anything sensitive was protected during that time. The pictures we have seen already are from low-res cameras intended to check to make sure things are all right around the rover and help it navigate. Even these still have a plastic cap ov... |
Duel citizenship rules between the US and UK | Yes, as long as he was actually born in the UK. You can submit his British birth certificate as evidence of this ) and details about applying can be found [here]. |
Why are video games usually released in the fall? | Mabye you more likely to stay inside and play video games in the colder weather. Rather than the Spring/Summer when everyone is going out. |
why aren't sunrise and sunset an equal amount of time away from noon? | It depends on what you mean by "noon." When most people use that term, they're referring to *civil* time: when the clock on the wall reads 12:00, it's noon. But there's also *solar* time, which is based off of what angle the sun is at in the sky. Solar noon is defined as when the sun is at its highest point in the sky.... |
What is the p-value in psychology? | p-value is a statistical term, not a psychological one. In order to do statistics, you're attempting to *disprove* a particular idea, which you call the *null hypothesis*. For example, if I have a coin, and you think I 've loaded it, you might do an experiment by flipping the coin 10 times. Your null hypothesis is "the... |
How much regional variation is there between bugs that make you sick? If I get a cold on in Los Angeles, will the antibodies protect me from a cold in New York? | The short answer is not all that much. Certainly pathogens can be more common in certain geographical areas but the major ones such as the various 'cold' viruses are global. There is more geographical variation between strains but given that New York and LA are both major cities in a single industrialised country I wou... |
why do distant galaxies often look like they're spiralling? | Because they are. As is our galaxy. That's why it's called a Spiral Galaxy .Because they are. The galaxy itself is spinning and moving through space relative to other celestial objects. Our galaxy is doing this as well. There is a large black-hole at the center around which things are essentially "orbiting"Because they... |
how do electronic devices know how much charge is left in the battery? | By measuring the voltage the battery has currently, and comparing it to a specified value of what it would have when fully charged. |
how/why does incognito mode bypass some paywalls? | Those paywalls are based on a cookie , and incognito mode creates a virtual cookie jar that doesn't copy the cookie used to enforce the paywall . |
Why are babies' immune systems so fragile? If the mother has built up immunity to a number of pathogens in her lifetime, why is this not passed to the fetus in vitro? | Imagine a company named Mothersoft. Every one of the cells has identifiers like an ID badge that tell the immune system that they belong to the company. The security will respond to anything foreign that doesn't belong in the company. Now imagine that the company wants to spin off a smaller company based on a partnersh... |
How does a particle become a wave? And how does a wave become a particle? | I'm guessing you're talking about wave particle duality? In this case what you're describing does not happen. Electrons exists as something which is neither a particle nor a wave, but which exhibits properties of those things in different circumstances. |
Why do smells (as opposed to other senses) trigger such intense memories, even those from so long ago? | The olfactory bulb starts in the nose and stems into the brain, passing 2 brain areas that are implicated with memory and emotion ; the amygdala and hippocampus. Other senses do not pass these 2 areas, thus giving olfactory a larger presence with memory and emotion. |
What happens to sea life when lightning strikes the ocean? | Very little, the ocean is very large, and disperses electricity quickly. Only creatures very close to the strike would be affected. |
How humans get the feeling of "being watched". | It's not a sixth sense, but confirmation bias, pure and simple. There's also some subconscious cues involved. Explaining the first one is simple - if you get the feeling of "being watched", and turn around, and someone actually IS watching you, then you remember that moment. But if you get the feeling, turn around, and... |
How does a hydraulic hybrid vehicle work? | Under braking, fluid is moved from a reservoir into an accumulator. The accumulator is filled with compressed nitrogen - I think this is the part you've missed. As the fluid is pumped in, it's the nitrogen which is compressed, thus keeping the fluid under pressure. |
How do car manufacturers differ the signal made by one remote unlocker from another? And how do they prevent 'brute force' hacking? | The codes rotate based on an algorithm shared between both the car and the key every time you use it. The format of the code, and the algorithm change between manufacturers, so they don't unlock other cars by mistake. When you get a new fob, they program it with the same algorithm seed, so the car and remote come up wi... |
Why can I prevent the taste of something when I hold my breath? | Taste and smell are very much related to each other. Taste relies on smell heavily to add to the sensation of flavors, so the perception is changed, or in this case, nearly totally subtracted or distorted. |
why is it bad to watch t.v. with the lights off. | Watching TV with the lights off does have an effect on your eyes. This [study] found that there was higher visual discomfort, higher frequency of blinking, fatigue and eyestrain. However, the key word is ***fatigue***. Watching TV in the dark does not cause *damage*, but it causes your eyes to tire out. |
If Beijing expects the weather to blow all that smog away, where does it end up? | I read an article on reddit the other day sayinng that 50 - 60% of the polution in California comes from Asia Edit: it is actually 20 - 30%Cartoons tell me Captain Planet takes care of it as long as I recycle the can from my Beanie Weanies. |
How does terminal Velocity work? | There's a thing called gravity that pulls things towards each other. When you fall from really high up, the earth is pulling you towards it . Now, when you fall, what are you going through? That's right! You're going through air. What's air made of? Lots of tiny particles. Now, the thing is, the faster you fall, the ha... |
How come I can sing along to a song almost perfectly in my head but if i try and sing it out loud I am half a second off and stutter some words? | Short explanation: humans are quite brilliant in lying to themselfMost likely it's like -iFunny- says, when you are singing along "in your head" you are actually just listening to the song, one thing you can try figuring out is wether or not it's your own voice your hearing. If it is not, or it sounds a bit off you are... |
what Facebook stands to gain from buying Instagram | Removal of a potential rival. Sometimes it is easier to buy them off now then wait for them to become an even bigger profitable company. Facebook clearly wants to be the main photo sharing service on the web . Gain of patent rights. Maybe Instagram owned several key patents to photo sharing software/hardware and facebo... |
Why are some medicines dosed per Kg of body weight and some have a standard dose for everyone? | Most over the counter medicines are dosed at a standard weight. Usually this works for everybody, but for the extremes not so well. However when accuracy is needed, such as with children or certain antibiotics, we dose by the kg to prevent complications. Source: I'm a nurse.Over the counter medications are usually hard... |
Why do CPUs and GPUs become unstable at a higher clock rate than intended? | Every element in a combinatorial circuit needs time to get ready for input and process the input.Its called setup-time, hold-time and propagation-delay. If dont let the element enough time to "process" the input your logic output can be wrong.You can read about it here: _URL_0_ -------------------------- For modern com... |
Why does our sense of taste generally prefer unhealthy things (pizza, burger etc.) over healthy ones (broccoli etc.)? | We evolved as wild creatures where crucial nutrients like fat, salt and sugar were hard to find, so we crave them. Now due to modern technology/agriculture they're everywhere, but our urges haven't changed. |
How do we have pictures of the Milky Way from a perspective looking straight at at, despite being in the Milky Way ourselves? | The same way they have movies set in the Middle Ages even though there were no recording devices capable of filming it at the time. They're either drawings, computer simulations, pictures of other galaxies that are believed to look like ours, etc.We use a complex array of mirrors we launched in the 60s. However nasa is... |
Why are guitarists like Eddie Van Halen, Jimi Hendrix, etc. considered the "best" in their genres? | You answered your own question. It's because they were breaking ground and playing in ways that weren't really the norm for their respective times. True there will always be somebody out there who was better, but Eddie and Jimi had the good fortune to have music that made its way to popularity and had the whole world w... |
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