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You don't need sunlight specifically. You need ultraviolet light specifically. And sun exposure is the easiest way to get UV exposure that your body needs to synthesize vitamin D They already make phototherapy lamps that do this very thing. [Here]( URL_0 ) is an article about it. |
Why not a DNA sample as well? A few hair follicles? Blood sample? The crux of the issue is your 4th amendment and right to privacy. There is no logical reason that you should have to provide any of this to be allowed to utilize public roadways and therefore it is a violation of your rights to collect this information w... |
No, the protocols are different where the mobile network has individual encryption to each end user. A wifi network only has one encryption for all its users. |
Dangers: civil logical people become less so as tensions build causing people to do things they never normally would if on their own. The perpetuation of emotional response overshadows logical reason and herd mentality forced people to follow before fully evaluating the situation. Warning signs: there's a mob. But seri... |
The spinning of the top cup at the beginning makes room for a pocket of air. The kid then blows into the pocket of air enough that, between the spinning and the expansion of air below the top cup, he's able to get lift out of the bottom cup. The rest is good aim and good alignment. |
Short answer: The start of the second track dropped faster that the first, meaning the ball was moving faster over the majority of the track. In general, it's a trade off; the faster the track drops, the faster the ball will move. But the more the track deviates from a straight line, the longer the path will be. There'... |
Like any software development, there are various version control systems (VCS) applications that help keep track of source code an resource files, allowing different members of the team to access the latest and merge changes. A lot of open source projects use Git, hosting on Github while private companies may use somet... |
It is similar to when you are at a restaurant and they give you your drink in a plastic cup that looks like glass, and you pick it up much faster than you mean too. You aren't aware, but you tend to have a very good sense of how much effort it takes to lift something. So in TV and movies it is really clear when the obj... |
Stratum lucidum There is a fifth histological layer for palms and soles of the feet. Literally thicker skin and greater distance to the melanocytes. Less light stimulation gets through less pigmentation. Yada yada. Why is the skin on a vagina darker than the rest of the body? |
Because the wealth has gotten spread out over so many people over the last few centuries. There are a number of members that are still pretty wealthy, but no single member of the Rothschild family has anywhere near as much money as someone like Bill Gates or Warren Buffett. They're only so rich if you add up the wealth... |
It's the vapors that actually contain the chemicals to reduce coughing (thus the term, VapoRub for vapor rub). Rubbing it on your chest or neck simply puts it in close proximity to your mouth and nose where you can inhale it. It's not an antitussive (anti-cough) as far as I know, it just uses natural airway assisting a... |
Treads help water under the tire move to the side and prevents the water acting as a lubricant, reducing traction and causing hydroplaning (car sliding). So in wet conditions the traction is vastly improved with treads, however in dry conditions the traction will be slightly less due to a reduced contact area between t... |
Personal finances are vastly different than a government's and certainly a country's. Many firmly believe that the level to which the U.S. is in debt is getting close to the unmanageable (or past) level. That being said the idea of borrowing money to invest in the future is very appealing, it allows you to advance as a... |
Electricity stems from a property of matter called _charge_. Electric charges exert forces on other electric charges through what is known as an electric field. There are positive and negative charges that can be found independently. Magnetism is pretty analogous to electricity. It is governed by very similar equations... |
I believe that subconscious trigger, like many we used to have, no longer plays a role for certain people. In the same way's that we have learned to nurture and care for the sick and wounded, rather than leaving them behind. I think humans in civilized parts of the world are no longer concerned for survival of our race... |
It's so reddit doesn't go all medieval and try to track down the owner of the car - something that is surprisingly easy to do if you have a plate and a photo with some context. This particularly applies to photos of people being assholes. For the same reason people have their faces blurred out on TV or in pictures. In ... |
Muscle memory. Like playing a piano or hitting a baseball, your "speech muscles" (tongue, lips, jaws etc) get better at remembering certain movements with practice. With enough practice, the muscle movements become almost reflexive, making it more effortless to produce the desired speech sounds over time. |
Because the RFID cards generate a unique, encrypted code every time they are used, making them substantially more secure. They are much more secure. They use a 1-time code to verify the transaction. Swipe cards have all their data on the magstripe. The only area chip cards aren't more secure is online transactions, tha... |
I don't think freezing will destroy the virus. But I don't think you can catch the same cold twice. URL_0 No, its my understanding that you cant get infected with the same strain/ virus twice so even if you didn't freeze it, you wouldn't get sick |
Lots of budget for advertising, pioneering technology, looked beautiful, lots of action, and James Cameron was attached. Any time you can say "From the Director of Titanic" and the movie looks and feels "big," you're going to make a lot of money. I think they caught on early to the 3D craze, and maybe it was one of the... |
Lewinsky was an intern at the White House. She had nine sexual encounters with Bill Clinton and started confiding the details of these to a coworker named Linda Tripp, who tape recorded their conversations. Tripp also encouraged Monica to save souvenirs of their encounters, including a dress that had semen on it. Tripp... |
Needing to urinate is something which can be suppressed by the sympathetic (fight or flight) nervous system activity, or becomes more obvious when parasympathetic (rest and digest) nervous system activity predominates. Exercising shifts the balance towards the sympathetic nervous system. Seems like this could possibly ... |
The first (7.9 Km/sec) will put an object into orbit around the Earth. The second (11.2 Km/sec) will allow it to leave the Earth's gravity well and truly escape. [This paper]( URL_0 ) shows the calculation for both. |
Sunlight gets scattered by the molecules in the atmosphere. This is why the sky is blue - those wavelengths scatter easiest. But in the morning and evening, there's much more atmosphere that the light must travel through to reach you. Thus, more light is scattered and less gets to you, so it's not as bright. |
For: wash off pesticides, dirt. Against: why the hell would there be anything against washing your fruit. for: wash off pesticides and bug shit, avoid cancer. against: strengthen your immune system, live fast/die young Something to be careful of when washing fruit and veg is that you may wash off a protective layer (wa... |
The basis of Mulesoft's offering is the mule Enterprise service bus (Mule ESB). For the non technical, a bus in computer science is something that can transport data for a variety of reasons. (Hence the term bus, it easily transports many different things). The ESB allows for extremely fast creation of integrations bet... |
Because normal people typically avoid talking to themselves out loud, because they are able to internalize their inner dialogue (and also don't mistakenly believe they are talking to something other than themselves, as some people who are crazy do). Especially if other people are around, it is not socially acceptable t... |
Long time surfer here so I know about wet skin. When you spend a lot of time in water your skin cells become bloated and burst very easily. The cells become very easily damaged because of the water entering the cell through osmosis |
I asked a neurologist about this, and he said that he leading reasons were (1) Lack of sleep; (2) Stress; and/or (3) Too much caffeine. |
Sallie Mae is more or less an organization that was powered by the government. Now it is the largest US student loan provider and collects for the dept of education. Because of its size it can give fairly low interest loans and it quite safe from failing at any point. It is a privately traded company as well. There wer... |
Because Antarctica is a continent, so it is made of land. All the ice is on top of the land and not currently in the water. Because the majority of the frozen water is outside the sea. Much of it is wrapped up in ice shelves or glaciers, both of which are melting due to climate change. As they melt and fall into the wa... |
The Earth and the moon are very similar in age and over their lifetimes have had similar amounts of impacts from asteroids. However, the Earth is very geologically active. Continental plates keep moving around, and with a complex atmosphere and weather beating down on the surface, any land formations caused by asteroid... |
There could be many reasons for content not being available in a specific region. A few examples: 1. The content owner wants you to get the content in another way (popular for sporting events where the content provider will do a local blackout to increase game attendance numbers) 2. Monopoly; a conflicting provider has... |
Yes and no. These programs are backed by statistical sales analysis that you can draw various conclusions from. Loyalty programs provide troves of data on consumer behavior while also incentivizing loyalty and creating another avenue for the organization to push their brand image. Typically, consumers in these programs... |
Accomodating the poor English, are you asking why you can't take the whole course of medication at once? Let's use the antibiotic 'Gentamycin' for example. The drug is not easily filtered out by the kidneys, and an overdose would cause the kidneys to not work. That results in kidney failure and you'd potentially die. D... |
Cop here: No. They are not required to tell you anything. In most circumstances they will, however. If you try to walk away and you are being detained, then you will be kept where you are. If you are not being detained, then you'll be free to walk off. Police in the US need only *Reasonable Suspicion* to stop/detain so... |
There are two types of sweat glands. Eccrine sweat glands, which occur all over our body, are used to cool is when we are hot, and produce a thin, watery liquid, with salt and antiseptic properties. Apocrine sweat glands are attached to hair follicles, particularly those at in the armpits and groin, and are activated b... |
Flesh, and cells start to form beneath it, forcing it towards the surface of your skin. The same can happen with piercings, it's called migration. |
Actually, red blood cells, RBC for short, mature, their nucleus and its DNA shrinks and disappears. This allows that concave shape that they appear to have, which fills with oxygen/CO2. Only mature cells have no DNA or nucleus. The thing that gets tricky is the antigens and antibodies associated with the blood types. F... |
From URL_0 Seems like the gums are like any other part of the body. When cut they become inflamed and clot then heal. > The healing mechanism involves the inflammatory process, which is the same in almost the entire body. In particular in both skin and mucosa (both referred to as "epithelial" tissues), when there is a ... |
It's not so much the light as the ultra violet light that is created. It's extremely damaging to the retina. No sure if it's an urban myth but I once heard of someone with contact lenses having them bonded to their cornea by looking at the welding without a mask. They only discovered the problem when they went to remov... |
It's worth noting that while many animals have similar sleep to humans, it isn't entirely the same. For example, a lot of animals have fragmented sleep, basically multiple naps rather than a solid one-time block of sleep. Cats spend much of their sleep time in very light sleep, the human equivalent of dozing off, and o... |
It's easy to determine which company owns which IP address. When you use a VPN your IP is changed from the one you are using with your ISP to the one you are using with your VPN. If your vpn provider own their own pool of up addresses then it's easy to just block all the ip's belonging to that company. If your a smalle... |
Humans are a tropical species, so there's no need for us to hibernate. When we left the tropics, we just made it feel like we were still there rather than evolving to hibernate because no one wanted to die of the cold. Cabin fever can basically lead to hibernation. Mythbusters did an experiment over cabin fever which i... |
Nope. Because of mass-energy equivalence, as something gains speed (kinetic energy) it actually becomes more massive. Any object will gain less and less speed per unit of force applied to it, to the point where reaching light speed (referred to in physics as *c*) requires an infinite amount of energy. Continuing to acc... |
Interesting question. Openings to the body create other issues, one being the maintenance of a sterile environment inside the body. All of them can be pathways for infection to enter the body. The respiratory "tree" is lined with cilia that move mucus up to the throat, then it is swallowed into the stomach, where stoma... |
The choice between "a" and "an" is based on how the word sounds, not how it's spelled. If it starts with a vowel *sound*, then we use "an". We pronounce "United" like "Yunited", so it's "a United States ship", but it's "an unsinkable ship". You used 'an' if the sound following is a vowel sound. United stated is pronoun... |
It's a little burst of adrenalin, the hormone which stimulates the body's fight-or-flight response to threat. Parts of your nervous system go on red alert when you are in immediate danger. If you actually fell, your nervous system would dampen the pain somewhat, but the impact would be the main thing you felt. Since yo... |
It takes processing power to de/compress stuff. You notice how smoothly video plays nowadays? Pretty much every computer now has a dedicated piece of silicon for decompressing h.264 Many file formats use specialised compression algorithms suited to the type of data, which do a better job than zip can because they're ab... |
That is known as "Globus Hystericus" or, a sensation of a lump in your throat as a response to an anxiety provoking situation. Common emotional response. Not everyone gets it. Note: if you are having constant difficulty swallowing, please see a doctor Edit: correction |
When the water ends up in the oceans, it slows down the cycling a lot. Water in aquifers (the stores under the ground that we access when we use wells) and water on Earth's surface are the cheapest to use. We have been either polluting these (surface) or using them too fast for new water to filter in. We have also allo... |
The only bing I can think of is that the Romans used an "x" on contracts. Back before signatures, people would kiss it or something as a signature which is why we use "x" for kiss and at the front of signature lines. An x without a signature would mean a contract voided or cancelled, so maybe that's why it is. As for x... |
As a star ages, it converts hydrogen into helium, and eventually heavier elements. When you pass a star's light through a prism, its spectrum tells you the relative amount of elements in the star. By seeing how much hydrogen a star has compared to other elements, and consider other factors like its temperature and appa... |
While the other reply is correct and there used to be a "waker upper" what we're failing to realize is that in times that long ago, waking up "on time" just wasn't as important. Without widespread electricity it was unusual for people to stay up into the night. Basically most people would go to bed after sundown and wa... |
When left to themselves, languages drift pretty quickly, especially when literacy is low and populations and immobile and isolated. It only took a few centuries for Latin to become French, Spanish, Italian, Portuguese, Romanian, and all the other Romance languages. The drift slows when things start to get written down ... |
The metal walls of the oven reflect the microwaves. The door also contains a metal mesh which reflects microwaves back into the centre of the oven. |
Many animals have incredible memories. In fact even goldfish, who were thought to have 3 second memories, have been found to have memories lasting over 3 months and are even able to be trained. Most pet animals have memories extending several years, and may even have facial recognition in some cases (cats maybe, also h... |
Rendering a video is doing more than just putting images back to back and then creating a video that puts those images on the screen. It also does a lot of compression to the video so that the file size is much smaller and can be transmitted across the internet without using up all of your data limit. Lets do some quic... |
To help you digest your food, your stomach contains hydrochloric acid (HCl). This helps to break down food molecules (along with enzymes) and kills any bacteria in your food or anything else that human may find appetising. Because we tend to eat at set times of the day, there's a set amount of HCl in our stomachs - any... |
Keep your room absolutely pitch black until you want to wake up. Light is the main signaler of your body to be awake, so if you have a window, especially a window that faces East (where the Sun rises in the morning), more than likely the sunrise is waking you up. Get some blackout curtains, and keep your room dark. Put... |
It's a virus, so antibiotics don't work. It's also a virus that mutates constantly and is present in the population in a wide range of strains so vaccines are pretty much useless- a vaccine for one strain won't help after it mutates again. (you can get a yearly *influenza* vaccine effective again a small number of sele... |
Memory may not be *completely* understood but the basic understanding of it is there. Essentially, memory is just associations between neurons firing at the same time. The saying in neurology is "Neurons that fire together, wire together." What this means is let's say you smell smoke and hear someone says "I smell the ... |
In principle: * Promoting economic development which promotes global stability and US economic interests In reality (the vast majority of the time): * Effectively buying favors from foreign governments. |
You're correct that computers simply brute force every possible move, but beyond that, every possible sequence of turns for x number of turns into the future. Every program has an algorithm for the value of a particular move, general based on the value of capturing specific pieces vs. pieces lose. More sophisticated pr... |
White, black, brown, tanned. Hairy, practically hairless. 6 eye colors. Short, tall. Muscle definition inclined, and not. highly intelligent, not and in-between. High metabolisms , and not. Some have a natural endurance to cold, or heat. Some suffice with little nutrients while others don't . Hair color. These are just... |
The etymology is unclear. It appears to go back at least to the late 60s, and there's an occurrence in a 1982 novel. Wikipedia [cites a couple of articles]( URL_0 ) connecting it to "Piccadilly Commandoes" as a slang term for prostitutes back in WWII. |
Not much. Most of Mossack Fonseca's clients were Western Europeans and most of the companies that Mossack Fonseca created were legitimate entities that were being used to carry out investment activities or purchase property in the third world. A small subset of the companies were being used for tax evasion or money lau... |
nothing to do with anything. it's learned behavior. it is only done by people who have been exposed to other people doing it. stop next time you're doing it and ask yourself why. you'll have your answer. you're doing it so the person you're snapping at shuts up and lets you think and doesn't interrupt you. its your loc... |
At the microscopic level, wooden spoons are very rough. They provide a lot of craggy surface area to pop bubbles that touch it. As the bubbles on top of the water get higher, they hit the spoon, pop and the popped bubbles fall onto the bubble below either slowing down their progress or possibly popping them as well. |
Unix time is how computers keep track of time. Unix time is the binary number for how many seconds have passed since 00:00:00 UTC on 1 January, 1970. It is used to keep track of the date and time in pretty much every application on computers and phones because it's such an easy algorithm to use. |
Hard drives are always failing. The drives are in arrays, your data is stored across multiple drives instead of just on one drive. Parity is used to reconstruct data when a drive in an array dies. For an example of parity we can use addition. We know that 1+ 2 = 3. Let's say you erase one of the numbers so you have ? +... |
energy increases with the square of the speed. E = 1/2 m * v ^ 2 is the kinetic energy of a thing (with m being the mass and v being the speed). so if you double the speed you need to quadruple the energy (2 ^ 2 ) to keep that equation true. or put differently: if you double the kinetic energy of something then it will... |
Some background: Breathing is controlled by a part of your brain called the medulla oblongata which is involved in regulating many of the bodily processes that are controlled automatically like blood pressure, heart rate and respiration, and your breathing rate depends on the concentration of acid in your blood. If you... |
Traditionally, one core would handle one thread at a time. if it needed to process information from another thread, the first thread would be put on hold for a short amount of time until the core was done doing what it needed to do on the other thread. However, a core contains several types of circuitry. Let's say one ... |
World War II provided an economic boost because most of Europe was devastated while the US was largely untouched. The US was able to fill the economic void while Europe was recovering. If there was another war that allowed the US to sit on the sidelines, enter halfway through, win decisively, and emerge relatively unsc... |
Some people can wake up from their snoring if it is loud enough. I know this because my friend did this (hilarious). |
There are at least two accounts of dolphins committing suicide. URL_0 |
Look how thin those pitchfork tines are compared to a pike or a halberd. Those things would snap like twigs if they met any kind of resistance. Pitchforks are designed for hay and leaves; not exactly the toughest of targets. If you reinforced the blades to make them more spear-like, congratulations, you've just invente... |
Glass is generally chemically inert, which is why labs use glassware and not plasticware. Some plastics can leach chemicals into the contents. Not all, but since most people don't know which ones are safe for what purpose we rely on manufacturers to choose wisely. That puts your health in the hands of people who's only... |
If you're talking about pouring hot grease down the sink drain, I wouldn't. It may be nice and liquid while you're pouring, but it will cool off quick when it hits the cool pipes, and unless you've got lots and lots of hot water to follow up, you will end up with possibly clogging your drain. Let the grease harden and ... |
This is precisely why the Federal Reserve has targeted inflation in the first place. It punishes people who keep their assets in cash. They want money to keep moving because that's better for the national economy. However, if rather than saving in a bank you invest the money in something like mutual funds it insulates ... |
The reason they have you pull the parachute at about 5000 feet is solely for your own safety. You *could* pull it at a much much lower altitude, but the lower you get the more risk there is of something going wrong. Parachutes sometimes get tangled and need to be untangled, sometimes they fail and you need to deploy th... |
This is kind of an accident of evolution in a sense. The prevailing theory currently is that eukaryotes (fungi, animals, plants) emerged when the ancestor of eukaryotes "ate" a prokaryote (bacteria). However, they formed a symbiotic relationship where oxidative respiration occurs in the mitochondria and the cell encomp... |
Airbags contain a compound called sodium azide, which is a combination of sodium and nitrogen. When an accident happens, the accident triggers a mechanism that ignites the compound. Sodium Azide separates into sodium and nitrogen gas, and it's the nitrogen gas that inflates the airbag. |
When you are sick your body is actively fighting off infection and using most of the bodies resources for that reason. You get sore for several reasons during this process. First and foremost, you are either not eating/vomitting/shitting so you arn't replenishing what you are losing in proper amounts. Your body is burn... |
Simple answer: they don't. They likely just want to entice you to get back on the platform. At most, they run a machine learning algorithm on the frequency at which you receive messages and store this locally in each person's phone, thus over time, predicting with some accuracy if you'll get a message. |
Depends, but generally both. "Impressions" are the number of times an ad is loaded. Impressions are very cheap; millions of impressions might only generate a few dollars. Clicks are "interactions," these generate a TON more money for each interaction. That said, this might be a general "click = $" or could be a more co... |
Picture a pond full of reedy plants: disturbing the water causes the reeds to move. It's the same with our ears: the inner ear contains thousands of tiny hair cells, and the motion of the surrounding fluid pushes them around. The brain then receives a signal that tells it 'okay, we're walking', 'we're laying down' or '... |
Different people within different disciplines prefer a certain style, and over the years, styles have morphed and changed. URL_0 |
Many languages have a "diminutive" form, usually a suffix, for names and objects. In English, it happens to be -y (or rarely -ie, same sound); in German it's -lein and -chen; and so forth. In other words, "Why?" "Because." It's a fairly common construct. ---- Now, if your question was actually "Why is the standard dimi... |
It's not about coal mining jobs, its about ANY jobs. Most of the areas that mine coal in the US, particularly those in Appalachia, are pretty poor, working class areas, there simply isn't many opportunities for work. In the past days, having the coal mines meant these people could get at least reasonable work and paych... |
Sugar levels, cholesterol levels, all affected by food. Need to not have eaten anything to get accurate readings. |
The gravity concentrations are related to the density of the crust of the moon. You can see areas such as craters have altered density and thus gravity strength. |
Same reason "twenty" doesn't have an "o" in it and "thirty" doesn't have "ee" in it, and fifty doesn't have "ve" in it. "Fourty" is an archaic form. I always tell my third (not "threeth) grade students that words and spellings get changed over time. I tell them we don't say fivety, or threety, or twoty, and they always... |
Once upon a time, people retired at a certain age. They got a watch and a party at the office, and went home to collect their pension. That freed up space in the company to promote people up the chain, eventually opening up a space at the bottom for someone to start. That doesn't happen anymore. People die at work rath... |
The difference really comes from how deep the cut goes. The deeper the cut, the higher the risk of infection. Stitches are really only there to close the wound, and to be able to prevent infection, not to actually regenerate the skin. A Cut/Paste from WebMD (IT'S GAWTA BE CANCER!!!!!!!): Treatment by a doctor is more l... |
it means their viral load is so low it cannot be detected by current tests. They are still HIV positive, but the disease is in check, and their risk of infecting someone else is significantly lower, but never eliminated. It means that no virus can be found in blood samples from that person. This generally happens to HI... |
> Are we obliged legally to give the right data to them? No. But they're also not obliged to allow you to continue to use their products/services if they find out that you've given them incorrect data. |
I think the prevailing theory is that when someone is dying, their heart eventually stops and they pass out, so although their brain is active for another minute or two or three, they are unconsious, so they don't experience any of it. It would be like asking someone what they experienced when they fainted. They don't ... |
They are actually charged every time you drive. This happens with a machine called an alternator. When your car engine is running, it also turns a little electrical generator that helps keep the car battery charged. Car batteries are kept charged by the alternator, which is turned by the engine. 12-volts DC is the nomi... |
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