text stringlengths 38 76.6k |
|---|
The way most modern touch screens work is the folowing (very simplified): The phones screen creates a magnetic field. Your finger (or basically any conducting object) changes that field when it is inside of it. The screen then calculates where those changes happened and therefor have the position of the touch input. An... |
The evap system is for controlling evaporative emissions of hydrocarbons. The gasoline in your tank evaporates just like water off the ground on a sunny day. Unlike water however, the vapors from gasoline are harmful to the environment. So what we like to do with these vapors is capture them and use them. One part of t... |
A lot of it is because metal likes to expand when it gets hot and contract when it cools down. The borderline microscopic expansion and contraction make lots of little stress points while the material essentially fights itself to either push itself out or pull itself back into shape, and they go "ping" and "tick tick t... |
Seizing power in that fashion would require use of force - which requires giving the military illegal orders. Either the military would obey and that's more or less that, or the military would disobey and take the president into custody. The military would be required for such a move and it is sworn to refuse illegal o... |
They point it at your car. They can observe you are moving faster than the other traffic and they stop you under their own judgment. In court their judgment is generally considered to be reliable evidence that a particular motorist was behaving incorrectly. Kinda related.....LIDAR guns have a sight on them with a cross... |
The Rings power is not exactly explained in full, that was kind of the point of Tolkein's magic system - magic does really subtle things, and is very "story" driven rather than mechanical like a Vancian system (think DnD). In general, the Rings of Power responded to their wielder granting them what they truly desired. ... |
Because that's how you hold a phone when doing most other things. It doesn't occur to them or they don't care. It's easier to hold a phone one handed especially with how huge phones are these days. 1) That's how people hold their phones 2) They're usually filming something that goes up and down, like a person, or a tre... |
Bruises are caused when tiny blood capillaries are ripped and the blood leaks out under the skin. They can be ripped by an impact or, in the case you mention, when a vacuum is applied. The vacuum removes the air pressure that normally squeezes in on your body all the time. Your blood vessel pressure remains the same, a... |
Nope. Water vapor occupies space between gaseous molecules like carbon dioxide and oxogyen. You could have an area of 100%water vapor if it occupied a space that didn't have any other gasses in it before but if not the gasses would mix almost evenly. Quite simply, no. The human lung has evolved to operate successfully ... |
They don't need to be. Most mobile banking apps are capable of doing 90% of what you need to do for online banking - you can check your balance, transfer funds, deposit a check, pay a bill, etc. The more complex functionality, like opening a new account or applying for a loan, is done very rarely and requires more inpu... |
[Newton's Cannonball]( URL_0 ) > Newton visualizes a cannon on top of a very high mountain. If there were no forces of gravitation or air resistance, the cannonball should follow a straight line away from Earth, in the direction that it was fired. If a gravitational force acts on the cannonball, it will follow a differ... |
The way the shadow moves on sundials in the northern hemisphere. That's really all there is to it. People were used to reading sundials, so when clocks were invented, it was a natural choice for the hands to move in the same direction as the sun's shadow. |
When drawing a card the odds that it will be any one particular card are 1 in 52. The odds that it will be **somewhere else** are 51 in 52 - that somewhere else could be still in the deck, mucked or in someone else's hand. Where that card is doesn't change the statistical odds. Excepting of course that the odds reduce ... |
Delaware has both favorable laws for corporations _and_ very well established case law regarding corporations. It benefits a company to be based in Delaware both because of the favorable laws and because, if you are sued or engaged in other legal activity, you are able to predict with high accuracy how those lawsuits w... |
Darkness in humans ([skin color]( URL_2 ), [hair color]( URL_3 )) is tied to [melanin]( URL_0 ). All shades of skin and hair color is based on the type and amount of melanin production. Producing melanin was very advantageous early in human development as it protected us from [UV radiation and folate depletion]( URL_6 ... |
> Obviously it never happened, so is it still a legitimate concern that a freak occurrence like this could happen? No, the idea was sparked by the realization of nuclear fusion of hydrogen. The ocean or perhaps even the atmosphere might set off a self-propagating fusion reaction. Of course it can't but they needed to r... |
My understanding is they reshape the eye. The degree of how concave or convex the lens of the eye causes near sightedness or far sightedness. Sleep contacts temporarily shape your eyes back to neutral. |
I've seen fundraising black tie dinners for $100 a plate for zoos, and here we have colorful giant fiberglass penguins all over the city that I believe raised the money to make a new penguin habitat. Local businesses bought them to attract customers. Google "Tulsa penguins". I've also seen memorial bricks where you get... |
One of the main ways that caffeine works is by blocking a chemical called adenosine. Adenosine is produced naturally by some of the body's energy-creating processes, and when it hits the nervous system, it sends your body a message "Get some rest." Which is one of the reasons you feel tired after working, exercising, e... |
In fact they already have parsed all pages in the planet and created a database of relevant words and how these words relate to the pages. By doing that they have created a rank by words and what pages to show. Then they measure the distance between words and incorporate that in the rank. For example: a page talking ab... |
It determines it by context. If you just said that single word it would just have to pick one or the other, but as you add more information it can make a determination which is more likely. If you watch siri you can actually see it do this in real time. It will put a first guess for the word, but as you continue to tal... |
This goes back to the French Revolution. Before the revolution, members from different classes would very occasionally meet when called by the king to advise him. The assembly of the different classes (also known as estates) was called the *Estates General*. The king called a meeting of the Estates General shortly befo... |
I grind my teeth when I'm stressed, during my GCSEs at high school my mum and dad split up as he was having an affair and it got so bad my jaw would lock and I couldn't eat, ended up going to the ENT specialist with an emergency referral from my doctor, turns out I have over developed jaw muscles from it. I've done it ... |
GDP is Gross Domestic Product. That's how much revenue the country PRODUCES, not how much the country is worth. Just because a company for instance makes $1 mil a year in revenue does not mean it's worth 1 year's revenue. Wealthy capitalists have tried to buy control of large amounts of land and resources from poorer c... |
Anger is considered a "secondary emotion." Meaning that we feel another feeling first. This feeling is usually fear or sadness. By getting mad, we are able to protect ourselves from the people or situation that causes our sadness or fear. We can then deal with this feeling of sadness or fear later when we are no longer... |
Its been a while since I worked in telecomm infrastructure but I'll take a stab. > I've read that mobile networks possibly allow calls to be free You're talking about the rule that says all cell networks have to allow emergency 911 calls to any mobile subscriber regardless of plan status. Yes, even if you don't have a ... |
When you experience something, neurons in your brain fire. That is a disgustingly simplified explanation but it'll do for now. Anyway your neurons fire chemicals called neurotransmitters, and these neurotransmitters bind to receptors on nearby neurons to create a signal. When an event happens that is stored as a memory... |
This number is technically true (which might a first for Trump) but nonetheless misleading. The 94 million statistic includes retirees, full-time students, full-time parents, and the disabled. In other words, he is counting everyone who doesn't work... Including the ones who don't want to or can't. This is not the same... |
The key part of the molecules are nitro compounds. Those are two or three oxygen atoms bound to a nitrogen atom, which you can see quite well in [TNT]( URL_1 ) and [Nitroglycerin]( URL_0 ). These can split into nitrogen and oxygen under stress or heat. This oxygen can then react with carbon and hydrogen atoms in the mo... |
A larger tile is going to be subject to a lot more force from wind. It would need to be thicker to avoid breaking if wind gets under it. It also takes more to hold it in place. When it does get damaged, it's more expensive to replace a large tile than a small one. |
Because if you fall forward while going up the stairs you're only going to fall a short distance before you hit the steps in front of you and risk of injury is quite low. This gives you more confidence in your movement and allows you to move quicker and with more agility. If you fall forward while going down the stairs... |
The market has said that all else held equal, they want thinner phones over doubled battery life. Every phone has to have some sales niche. Some will be designed favoring battery life over thickness, others will be extremely thin and lightweight. Tablets can be phones too if you're looking for maximum utility over bulk... |
Part of it is, commercially made cigarettes are strong enough to be held with 2 fingers on the filter. Hand rolled cigarettes or joints need to be held differently. Part of it is culture, in western countries, "everyone" knows how to hold a cigarette. Mostly because that's how you see others hold it. In Cambodia I saw ... |
It's not. They can easily go down the rope. The belay man is just there to provide a second set of eyes and stop the descent if the other person begins to fall. It is entirely possible to descend solo, it's just that the first person takes on more risk in doing so. The person at the bottom is for safety, not a requirem... |
The problem is that you have to carry your fuel with you, so to do this you would need a fuel source so efficient that even a miniscule amount can provide massive force to accelerate the spacecraft *and* the unspent fuel. No fuel source currently available to us can accomplish this. Unless we discover new substance wit... |
Men's T-shirts have broader shoulders and more armpit space. Women's T-shirts are shorter and stretchier. I tend to roll mine also to protect the structure/stretching of the shirt. URL_0 It probably is both in part due to different shapes/sturdiness of men's versus women's fabric, and learning how to take off clothes w... |
To quote from the Simpsons: If it's clear and yellow, you got juice there, fellow. If it's tangy and brown, you're in cider-town. Now,of course, there are two exceptions... URL_0 > according to its Department of Agricultural Resources, "apple juice and apple cider are both fruit beverages made from apples, but there is... |
You've got a tube that connects your inner ear to your throat called a Eustachian tube. Normally this tube is pretty much open, except for a 'door' on the throat end to keep stuff out. When you've got a cold, the tube can get infected and it gets swollen, so even if the 'door' opens it can't equalize pressure between t... |
The US limits the amount of sugar that can be [imported]( URL_2 ), leading to a [higher sugar prices in the US]( URL_0 ) than in the rest of the world. That difference in price means that for many products made in the US, corn syrup is less expensive than sugar, but elsewhere sugar is less expensive than corn syrup. Th... |
A chemical called bromine is added to plastic as a flame retardant; it's usually white/colorless, but when exposed to UV light for a long time it turns brown/yellow. |
It's not necessarily the dollar (or other currency) amount that country spends on defense that's significant, but rather the overall percentage of their gross domestic product. Out of all the profit a particular country makes as a whole, how much do they dedicate toward capabilities of war. This is further scrutinized ... |
Is there air in the passage? If there is, eventually air resistance will slow the penny until it is still in the center. Is the sphere rotating as the earth does? If so, rotational velocity will drive the penny into a wall and it will eventually be slowed and stop in the center due to the collisions (unless your hole i... |
the fob sends out a signal that acts like a password only your car knows. if it recieves a signal with the wrong "password" it wont respond, so as long as nothing goes wrong each car should only respond to its paired fob to prevent someone from duplicating the signal to break into your car, it generates a new one perio... |
Former game developer here, Principally the reason to stay on a given platform is either because of licensing or because you're invested on a particular version and there are breaking changes if you upgrade. So what is more important? Upgrading your engine and fixing what breaks or using the engine you have because it ... |
They do. Oyster pearls are just the highest quality because they're so round. [Here's one produced by T. gigas, which is a clam.]( URL_2 ) [These ones came from scallops]( URL_0 ) and [these aren't really pearls but a pearl like production from a snail.]( URL_1 ) |
There is no "exact time" when you fall asleep. Falling asleep is a gradual process where brain activity across many different areas of the brain slowly shift into sleep over many minutes. Your brain activity can be measured in waves, these waves are measured by an EEG. When we are awake and active, our brain produces b... |
It's just euphemisms. The two surgeries are essentially the same type of surgery, but the vasectomy is far easier simply because the surgical site lives outside the body and is easier to get to. Imagine that you have a garden hose and you want to make sure that nothing goes through that hose because you don't want your... |
First, let me just say that, by necessity, this is going to be a crib notes version because to explain in detail would take more time and space than is available at the minute. At the time when Hitler first came to the forefront, he'd already been active in the political scene in Germany for some time. The mood in Germ... |
There's still gravity underwater, though yes the effect is not as pronounced as in air. Fish actually aren't naturally "neutral" floaters who can just position themselves willy nilly. What makes it look so easy to stay neutral in the water is their swim bladder. This gas-filled organ located near the center of the anim... |
It's powdered sugar and it is their to make the gum less sticky (so it is easy to unwrap) and more sweet. As someone who's made chewing gum from scratch, I can tell you, the reason it's there is to keep it from sticking to EVERYTHING. Fresh chewing gum is like hot tar, it sticks to absolutely everything. The powdered c... |
The 'price point' is only to get you in the door. Many of their products are over priced to make up the difference. Games aren't manufactured in third world countries that WalMart can string arm into lower prices. Walmarts 'cheap prices' are only cheap here because the price is paid somewhere else. |
There are actually many types of pigeon around the world. However, the ones you commonly see in cities are the domestic pigeon, which is a specific variety of rock pigeon. The rock pigeon is the world's oldest domesticated bird. As the name implies, these are birds that have been domesticated by humans. The rock pigeon... |
Oxygen is highly reactive. It's that reactivity that makes oxygen useful in your body, but too much can be toxic. Your body has a lot of precisely tuned molecular machinery dedicated to managing the harmful effects of oxygen, but if you breathe in too much, you overwhelm it and the oxygen starts damaging your cells fas... |
It is code, often written in archaic languages running on archaic systems, that no one who has to work with it really understands anymore. The original programmers have retired or are dead, the company that made no longer supports it or is out of business, and the requirements are lost or never existed. If it serves a ... |
Group instinct, cow and sheep follow a leader, human control the leader cow/sheep. Utility, ox work, horse ride, sheep wool. All can be good food, pig, rabbit. Easy of multiplying, pig, chicken and rabbit are easy to breed. Easy of feeding, well you ain't gonna domesticate no lion, might be a problem to feed it. Also p... |
There's a good read [here]( URL_0 ) that explains the chemical cocktail your brain releases after....well, release and how it contributes to the "sleepy " feeling. Token lady here; I definitely get sleepy after orgasm. If alone, sleepy after I give up trying for more orgasms (max number changes based on meds, diet, tim... |
Because attractive people are and were typically more healthy. We are biologically wired to look for healthy mating partners to further the offspring's lives and capabilities. You could be unattractive and healthy, but due to years of looking for attraction when looking for health, we naturally lean that way. I have of... |
Your taste perceptions over time change. As children, things taste the most vivid because your taste buds are young. That means that bitter tastes are Ultra Bitter to children and this may be one reason that kids are said to hate vegetables. As you age, your taste buds lose sensation, so it takes more and more flavor t... |
Your head ISN'T getting thrown back. The car is moving into your head! Inertia is a property of matter which states that all objects will maintain their state of motion (moving - > still moving / still - > staying still) unless acted upon by an outside force. A force changes acceleration, not velocity. Fnet=ma is the f... |
No. The light is shining through the translucent parts of your finger - not the bone. The visible spectrum can't go through bones. |
Memory is heavily rooted in context, like the room or environment in which a memory is made. This is called the Encoding Specificity Principle. When you are going about your life trying to accomplish some goal you will occasionally forget what exactly it was that you were trying to do, however it is important to note t... |
The pruning is actually to increase your grip. Think of it like lizard feet, the ridges add extra grip. Your hands and feet are your grabby parts, therefore biologically they need to be pruned to gain extra grip in the water. |
I commented this on a similar thread a while back, but here's my two cents again: Although it is not entirely known why we even sleep and/or dream in the first place, there are a few rather well accepted theories. First, theories on why we even sleep: 1. The restorative theory: Being awake and active takes a lot of ene... |
I'm a school psychologist, so I giving kids IQ tests is actually a big part of my job. Every test is a little bit different, but the ones worth their salt are typically based on CHC theory, which divides intelligence into different broad and narrow bands, and then uses different subtests to measure those. So, the gold ... |
in very simple terms, weed blocks certain neurotransmitter reuptake. so, if your brain sends a signal that something tastes good, that signal will have a hard time turning off. so, that "this tastes good" signal will just keep firing. Alcohol consumption makes you crave greasy food. It has to do with stimulating the pr... |
Sorry for the long winded answer, I kind of like math a lot. Math as logic and a description of the world: Numbers are a concept that just exists logically. There can be one of something, two of something etc., and if you cut something down the middle, there can be a half of something. It also follows that if you put t... |
Two high-energy photons of light can be converted into one particle of matter and one antiparticle, such as an electron and its antimatter counterpart, which is called a positron. This process is called pair production. The reverse process, annihilation, combines matter with antimatter to produce photons. (These are th... |
Your stomach expands and contracts to accommodate food. When you don't eat for long periods your stomach contacts. If left in this state for any extended period of time just like any muscle that is not exercised regularly, it begins to atrophy. sudden use (or in this case expansion) will strain the muscles that control... |
Viewers tend to change the channel once their favorite show is over. By aligning the commercial in this way, they might sit through the ads to catch the end of their show and then get "hooked" by the next show that starts immediately afterward. For example, a Daily Show viewer might've been enticed to stick around for ... |
**TL;DR**: *The sorting mechanisms weren't quite perfectly calibrated, or are dirty or loose or otherwise have moved away from perfect calibration over time, or the coin went too fast or is a mess, and so the coin doesn't get slotted correctly and falls through to the return slot as a reject the first time. But you got... |
As website you can make money by selling ads, but also by selling user data. Alternatively, the site is devoid of money making schemes as part of its growth strategy, and will monetize once it secures enough market share. Why bother showing adds when you barely get 100 visitors a day, better keep it add free to develop... |
Last year, a Democratic Party-affiliated super PAC called Correct the Record launched a digital campaign to attempt to influence the narrative on social media. They also skirted with FEC rules about cooperation with official campaigns. So a lot of people view them sinisterly. URL_0 URL_1 ShareBlue is another arm of the... |
Resignation is the preferred method because it's the quickest and least politically messy. With a refusal to resign, a formal impeachment process would have to be initiated in the House of Representatives, beginning with a Judiciary Committee investigation, articles of impeachment being voted upon and presented to the ... |
The big bang is where physics, as we understand it, breaks down. Before that, the laws of physics we know cannot be used to describe anything, don't work and don't even make sense. So we literally have no way of knowing what, if anything, was before the Big Bang. All we know is that there was a 'hot, dense state'. It's... |
The allegations claim that hackers working for two Russian intelligence agencies broke into email systems belonging to the Democratic National Committee as well as email accounts of other Democratic figures, such as Hilary Clinton's campaign chairman John Podesta. The emails they found were then released through Wikile... |
Some people identify themselves as 'alternative' or 'underground' or whatever you want to call it, and things like music and clothing can be part of that identity. They can feel smarter or more 'involved' in the music scene if they listen to non-mainstream music. If something becomes popular it doesn't fit that identit... |
I don't know who recommends this, but as someone who's volunteered a lot at shelters, I can't agree at all. For the simple reason that in many people's opinion there's no such thing as a "no kill" shelter (at least in the US). Right now in the US there are about twice as many dogs and cats born every year as people wan... |
Release forms aren't mandatory, they are a preventive measure production firms use to protect against lawsuits, monetary demands, etc. So it's not like there is some different law regarding the two video sources or that one has to do it and the other doesn't. Simply put Vloggers are still at a strange intersection betw... |
So imagine a fast food place that can make burgers really fast, on demand. This is like the game when it's loaded and running, it's rendering stuff quickly and on demand. In the morning someone has to open the fast food restaurant, warm up the grills and get the ingredients out and prepped for rapid burger making. This... |
It's because it is the most compatible temperature for baking pastry, breads etc. Also when baking at 350ºF to 400ºF, chemical reactions and phase changes from liquid to gas happen in a speedy and efficient fashion. For example, cake batters yield fluffy, light, tender cakes, and not flat, chewy disks of cooked dough. |
There are instant computers, you just don't think of them as "real" computers. Tons of devices with embedded microcontrollers (household appliances, elevators, traffic lights, you name it) have real computers in there that load their resources almost instantaneously and can get going. As for "real" computers, we'll pro... |
Everyone or, at least, most people are capable of having sleep paralysis. Its nothing special as far as chemical imbalance go or something in genes or dealing with immune (it's been noted to be a common occurrence in narcoleptic people). But experiencing that transition from physically awake to mentally awake can vary ... |
So we know that light hits the receptors in the eyes (rods and cones). We know that certain wavelengths and frequencies will send different signals to the brain. We also know the frequencies will always match a certain color, frequency X gives color Y. But we do not know if the color green is the same for all people. P... |
There are certainly short term limits for the average person, eg "How many random numbers can you memorize in order in 5 minutes?" However, our theoretical long-term limits haven't been explored much yet. It would understandably be nearly impossible to study, and any upper limits are probably based on practicality, mot... |
Well, the term processed is quite literal. Pick some fruit, it isn't processed. Smash it into a smoothie and it is lightly processed. Smash it into a smoothie, pasteurise it, add preservatives and put it in a carton, leave it in a warehouse for a month before it sits on a supermarket shelf for a week, it is much more h... |
First, look at the reputability of the source. The source may be a *biased* source (every source is biased in its own way), but if it's reputable, then you can typically trust the facts. If the source has a print edition or was around 30 years ago, its reputability increases. If the source's headlines are typically sen... |
In any sort of formal deliberation, you need to have rules of order, or it will break down into a chaotic shouting match. The various ways of accomplishing this are known as **parliamentary procedure**. One common rules is to nominate a speaker, and have all communication run through them. |
A lot of people wouldn't consider chess a sport, a few people would consider checkers a sport. To get to what you're asking in why someone would consider chess a sport, but not checkers, chess has a damn near infinite amount of possible moves that to this day, we've not been able to build a computer that has solved che... |
So in the American education system, a child is generally locked into the schools around where they live. You cant try to transfer to a different school, but priority is given to the students who live closest to that school. The problem is that some neighborhoods have bad schools, which means that kids in those neighbo... |
Blue ink is common for writing, at least partially to differentiate wet ink signatures from photocopies. Black ink is very low cost, because everybody wants the same color. Blue ink is problematic, as Dodger Blue isn't the same as Prussian Blue. |
Just as a side note to the liquidators, there were a few VERY brave men that made it so the disaster was not nearly as bad as it could have been. And these men KNEW that they were killing themselves: URL_0 |
The skin pulls on your eyelid and the lid puts pressure on the eyeball. This slightly deforms it and messes up your focus. |
If you drop a bouncy ball on a smooth floor like wood or even most cement, it will bounce straight back up. If you throw it at an angle, you can pretty easily figure out where it's going to bounce based on that. Now drop or throw the same ball outside on some rocky or uneven ground and the direction the ball will go is... |
They keep the viruses contained, for instance in rooms with negative air pressure (so that any airflow runs in instead of out) and containers that the virus cannot penetrate. Then, they study them wearing gloves, or environmentally sealed garments, or with indirect tools like monitors, instead of nakedly handling them.... |
They still use nielsen pretty much exclusively. And nielsen still relies almost entirely on set-top boxes. They have a competitor in rentrak which uses actual data provided by cable provider partners. nielsen recently [struck a deal with dish network]( URL_0 ) to do the same. Their numbers are garbage and that's no sec... |
Why are you asking about ads specifically? The reason to infect someone via an ad is the same as any other infection, and there can be a multitude of answers ranging from botnets to trojans to just plain causing havoc To make money. There are many ways to do that. "Ransomware" blocks you from accessing your documents a... |
Thunderstorms generally occur when a cold front moves in a warm area. The way fronts work is that the colder ones shove the warm air mass upwards since cold air is more dense. In this same way, the warm air has more energy than the cold does, so when the cold from moves in, the air is calmer. Often during the summertim... |
There are a lot of reasons for you to get a headache, but the one that pertains to the glass of water solution is that your brain needs water to survive. Your brain runs on various chemical reactions which require a balance of salt, and many other things, to stay regulated. If you don't have enough water, those chemica... |
Your calculation is definitely right. I'd say they made a mistake there. On the other hand I know people and some are devilish misanthropes. Therefore you should consider that this could either be part of your test or they provided some additional information within the test (or not, in this case they are absolute bers... |
Human parents invest a lot of time and effort into raising their children. If you think about it, you usually finish your studies in your early twenties and even then, even if you start working and living on your own or are living abroad or distancing yourself from your parents because the differences between you and t... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.