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While not exact, and assuming only minimal physical exercise, a person needs to eat roughly 11x their body weight in pounds to maintain their weight. For instance, the average male is 180lb (~82kg), which means they need 1980 calories to maintain their weight, which is where the 2000 diet comes from on nutrional labels... |
It's mostly CYA. You are probably removed from the "get new email" list quickly, but they can't guarantee there isn't an already sent email sitting in a mail servers queue somewhere you haven't received yet. Easier to give you a few day buffer than have you call up angry the next day. When bulk emailing normally these ... |
You brain has a part that tests reality. When you see something weird, like a man with three arms, it says, "whoa, that's not right, better take a closer look." So you do, it turns out to be two people standing at a funny angle, and all is well. When you dream, the part of your brain that tests reality is less active. ... |
Android? It's a popular topic that Snapchat on iOS produces much better images than on Android, and an answer I saw was because the Android version only screencaps your live-preview and actually doesn't use the camera to take a picture. So, whatever app you are talking about may do the same. However, worse focusing doe... |
By detecting the release of two specific chemicals (GABA and Glycine) and observing their interaction with the body. Edit: Grammar |
Different people have different cardio vascular systems. He may also be more fit than you, yes you read that right, sweating a lot and quickly is a sign you are in good shape. Sweating is a means to cool the body temperature. Your skin has a lot of surface area, and sweat acts as a medium that cools when in contact wit... |
Animals can faint if their blood supply to the brain is disrupted, as it can occur in humans, such as by the heart not functioning properly. That being said, I'm not sure animal fainting would be especially noteworthy. The most newsworthy case, "fainting goats" and the like, aren't actually fainting, and even they only... |
[Grammar Girl]( URL_0 ) is a good resource for learning grammar rules. In a professional setting, you'll probably need to use commas to separate items in a list (I think we'll need to get Janine in Accounting, Kevin in Legal, and TJ in HR involved in this), to join two clauses using and/but/or (I emailed Kevin about th... |
Yes. To the best of our knowledge, quantum mechanical processes are truly random! Let's back up a little: The most common interpretation of Quantum Mechanics - the Copenhagen Interpretation - states, that the wave function of a system only collapses into a defined state when it is being measured. Before that, the wavef... |
There are many levels of consciousness (or unconsciousness) from fully awake to daydreaming to no self-awareness. Depending on what is causing it, you can be alive, but brain function is minimal and you feel and know nothing. People rarely recover from this state. A medical coma is one where the brain is at a level whe... |
LFTR is a generation 4 molten salt type breeer reactor where the nuclear fuel and coolant are all melted together. It doesn't need large containments or high pressure reactor vessels. But it does have huge corrosion problems that still aren't solved yet and needs a specialized reprocessing system which also isn't desig... |
URL_0 > Near the Equator there is little distinction between summer, winter, autumn, or spring. The temperatures are usually high year-round—with the exception of high mountains in South America and in Africa. (See Andes and Mount Kilimanjaro.) The temperature at the Equator can plummet during rainstorms. In many tropi... |
Not quite like you're 5 but.... All foods we eat have fats and oils right? Well heat can make food break down making it easier for our taste buds to recognize certain flavors and aromas. As with anything cold, it tends to dull our senses. When your taste buds get cold, it makes it harder for your body to recognize flav... |
What you are seeing is fluorescence or phosphorescence. This happens when certain materials absorb light of one color and emit light at a different color (this is *not* the same as reflection). All colors of light correspond to different amounts of energy. Blacklights produce ultraviolet (UV) light, which has more ener... |
Most things in our body are symmetic, on a cellular level this is because very early in embryogenesis a front and a posterior("back") are defined and along this axis initiated by different concentrations of signal molecules, symmetrical expression patterns are developed. They serve different purposes. Herbivores such a... |
A Congressman in the House represents the interests of individual districts where you live. A Senator in the Senate represents the interests of the state at large. The reason we have two chambers is because the Framers were concerned with balancing out the power between the states. If we only had the House, then the la... |
From what I've seen on some Linus videos, many servers use 10GBit but the cost is so high that most consumers can't really justify the premium cost. |
Many computers do momentarily power off when restarting. However the capacitors on the motherboard have not been lacking power for long enough to completely discharge their power and so can still hold some things in memory. Sort of like when you unplug a power adapter from the wall but the little light on the brick sta... |
Like all mental illnesses, schizophrenia is most likely caused by a combination of genetic, biological, social, and environmental vulnerabilities. Something to keep in mind is that effects, like changes in neurotransmitters, may come about as a result of schizophrenia--they may not cause schizophrenia itself. For schiz... |
Entropy man. It takes more energy to keep something "clean" or "arranged" than it does to let it go to chaos and become a mess. Put a bunch of strings in a box and shake it. Things will get tangled up quickly, and take more time/energy from you to untie/unknot the item(s). User /u/crnaruka answered this best in this th... |
USPS is an "independent establishment of the executive branch." It functions more like a corporation whose assets are public and whose services and pricing decisions are controlled by the federal government than a traditional government agency. It still is considered a federal agency, though many statutes about agencie... |
The animal can play dead. I did a movie and the animal had to act like it was being killed, while fake guts and stuff were put on top of it. It was eaten by a zombie, btw. So. The animal doesn't actually get hurt. It acts...just like an actor. Pretty much the same way they show humans being harmed without CGI - practic... |
First, the program using the data takes data and chops it up into reasonable chunks called packets. Each packet has an IP address and port number where it is destined to, in addition to the data. It's kind of like the address on an envelope. It gives this packet to the operating system. The OS keeps a list of all the I... |
Infrastructure in place to deal with it, both people's stuff and city wide. If you live in an area that regularly gets snow, you have snowblowers. You have shovels. You have winter tires, and they're already on the car. The city has huge salt reserves, plows, you name it. if you live somewhere that *doesn't* get snow r... |
Sometimes it is as simple as which sleep cycle you woke up from or plain ol' lack of sleep. I just hate mornings. I like to stay up late and sleep a little late. Even if I go to bed early, I wake up feeling all "bleh". |
I don't know why Microsoft does it, but when Google switched they specifically stated their reasoning. They want to make it possible in the future to support alternatives to passwords. For example, you put in your email and Google asks you to either scan your thumbprint or enter your password. [Here's a good link expla... |
Curing is a process that involves using salt(normally) to kill organisms living in or on the meat. Smoking technically counts as a cure, I believe, because compounds in wood smoke are hostile to microorganisms as well. The basic idea is that by inundating the meat with antimicrobial substances, you prevent rotting, mol... |
Yes is theoretically possible. Build safe nuclear plants and renewable energy supplies. Convert everyone to electric powered cars. Stop building war machines. Disband all armies. Put them to work building infrastructure. It will not happen. Sure, many of those people *do* have first world lifestyles...for 1905. That's ... |
California originally had 27 counties. New counties were formed out of old ones as populations rose in the years after statehood. With most of Southern California being desert, there weren't many people there to support forming new counties out of the original large counties. The last time a new county was formed in Ca... |
For one thing, it is pretty big. If there was a gold rush in South Dakota followed by a mass migration to Minnesota, we wouldn't be talking about one place being a magnet. But mostly it is a lot of little things: * the weather is nice * it is on the coast * lots of natural resources * good agricultural land * the Spani... |
This is one of many fascinating illusions that the human mind is capable of creating. While there is no separate "you" that moves outside your body and then returns later, in your mind you get the impression that this has happened. Thus it is similar to a dream or hallucination. In a typical such experience, the person... |
Autopsies can be very lengthy and detailed operations. Even a case which seems cut-and-dry may have additional facets. For example, someone was found washed up on the shore, but was their death by drowning? The lungs may be examined to see if water was inhaled, the brain to look for other signs of trauma, and the blood... |
In theory, war itself is a diplomatic state between two nations, where in those two nations will use their respective militaries to sort out what ever disagreement brought on the state of war. War crimes are, in theory, defined by a breach of the Geneva convention, which are the rules by which nations are required to m... |
It usually takes a number of people getting fairly ill and reporting to emergency rooms or urgent care centers in a relatively short amount of time. There are a number of metrics used, but usually several people report illness within a short distance of each other. Data starts to build and county/state health departmen... |
A mouse will eat almost anything it can find and fit into its mouth, and although cheese isn't among its favorite foods it will eat it up if that's all there is. And that's probably how this myth of mice loving cheese got started. They were constantly being discovered in medieval cupboards eating the household cheese s... |
Any bubble that touches the spoon pops because it is so rough. That leaves a gap that the other bubbles fall into. Since no bubble can go higher than the spoon, the pot doesn't overflow. It does, it's a myth. What it does do is pop the bubbles which potentially slows down the boiling over but if the pan is hot enough a... |
Reverse osmosis is one way and I believe that I what they use on the ISS where they have to recycle all their water. I'd do more reading into how they recover water in space stations. |
At a guess I would say that new games are bigger then a disc can hold, my battlefield 1 digital game was 43 GB (rip my data cap :( ). Im willing to bet that if everything has to be read off the discs the load screens would be all over the place and, with all the massive open worlds lately, that would be a game killer. ... |
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 (you're also pulling the earth but since it's *way* bigger you don't really move it, it can move you though). Now, when you fall, what are you going through? That's right! You're g... |
there is a gaping hole. Just had one out myself. Takes a long time to heal over and you need to take care not to have the blood clot come loose or you'll get dry-socket. it's exposed bone with a blood clot. Eventually will heal over and be just the ridge you're describing. Months of time need to pass. |
Lots of people confuse internet speed (measured in megabits) with file transfer speed (measured in megabytes). One megabyte is eight megabits. |
We don't need to. If the brain interprets that limb as our own, it will go on to fabricate sensations based on other sensory input. [Watch this]( URL_0 ). > And on top of that, how can we connect the brain to the limb allowing for our brain to control said limb? Cybernetics. Stick wires into the brain. Learn the rest t... |
The standard deviation is, roughly speaking, the average distance from the mean of each of your data points. However, your data can be greater than or less than the mean, so you can't just directly take the average of all those distances. Instead, we square all of those discrepancies so all the signs cancel out and the... |
We don't know. We don't even know under which circumstances it happens. All in all, the [Mpemba effect]( URL_0 ) is a very hazy subject. Possible explanations for the [Mpemba effect]( URL_0 ) include: * Evaporation: The evaporation of the warmer water reduces the mass of the water to be frozen. Evaporation is endotherm... |
Because there is no objective basis for comparison. You can't get two people to agree on almost anything; your raters will have to become the ultimate arbitrators of what is true or not. It will be a shitstorm. The "post-truth world" is not a new thing; we've always lived in it. Significant portions of the global commu... |
Oxygen is present in water, but our lungs do not have the capability to separate the water molecules into oxygen and hydrogen. Jello is mostly water but you can't exactly drink it after it has set. |
Not everything that is worth doing can be described simply. For example, suppose you want to do something simple, like come up with a mathematical model to figure out how much snow will be on a road a few hours after it has snowed. To be able to decently capture this, at a minimum you will need to include: * temperatur... |
Muscles have lots of blood vessels and the medication can get to work pretty quickly, so they're a good place to inject. Veins work even faster but they are harder to inject but because of that speed there is a higher risk of accidental overdose or side effects. There is also more danger of infection. So intramuscular ... |
Let's use a 1-pound chocolate bar. Multiplication: if you have a 4 count of 1-pound chocolate bars, you have 4 pounds of chocolate. If you have no 1-pound chocolate bars, you have 0 pounds of chocolate. Makes perfect sense. Division: If you cut the chocolate bar into 4 equal parts, each part is 4 ounces (1/4 of a pound... |
The 'catch' is getting more people into the areas with net. Those areas will have all kinds of things that mean more taxes going to the city, like business revenue or land ownership. City-wide internet usually either means free wi-fi blanketing the city (via routers placed all over the place like lamp posts etc). This ... |
Because they have a long track record of misrepresenting the truth and frequently spreading baseless (right-wing) conspiracy theories (climate change is a hoax, Obamas' birther stuff, gamergate, pizzagate), knowingly using fake or debunked sources ( URL_1 ), and occasionally lying outright. It is propaganda more than n... |
Where I live, Odd and Even correspond to cardinal directions. North sides of streets are odd, even is south; West sides of avenues are odd, even is east. Addresses are based on distance from the American border to the south and from the ocean to the west. It's really easy to figure out where any given house is even wit... |
He didn't go from loved to hated. He was and remains incredibly divisive. People tend to have very polarised views and either love or hate him. What he did, and continues to do, is release private (often classified) information from governments, corporations and organisations. He is variously viewed as a vigilante, a t... |
They walked. You can ask from Africa into India, Asia and Europe. Back then there was a land bridge between Europe and North America at the Bering Straits. They walked over that and walked south. More interesting in the migration of humans to Australia 40K years ago. Also the migration from the southern China coast of ... |
They are capacitive touchscreens. They rely on human skin or a special conductor to sense where you pressed, instead of just registering a press like older touchscreens. URL_0 Small layer of fraction hair thin wires are Layn across your screen. These sense a magnetic field that when disturbed, changes the voltage at th... |
In chaos theory, there's this concept known as bifurcation, which is when the behaviour of a system changes drastically as a parameter of the system crosses a certain threshold. The particular bifurcation that's relevant is this situation is the bifurcation of the logistic map. Let's break that down a bit. The logistic... |
Students and young people are often more idealistic and more likely to believe they can effect real change, while older people tend to be more pessimistic and resigned to things being hopeless or impossible to change. You can put this partly down to naivete on the part of young people, who lack experience and haven't s... |
The minimum amount of effort/skill needed to play a character/role. If a character/role has a high skill floor, they're pretty hard to play at even a basic level. For example in Dota2 there's a hero called Meepo. To play Meepo you have to control 5 different units, and therefore he's very difficult to play at even the ... |
imagine that you are in a room in witch the floor is all covered in rocks. random rocks of all sizes and shapes. if you vertically drop a tennis ball it will not bounce vertically because the floor wasn't smooth. on the micro scale the wall, too, isn't smooth and the photons will scatter in every direction once they hi... |
Well, assuming the Planck units are what we think they are, it's just the way the universe works. They're what we call natural units, because they are derived from natural constants and not human-centered stuff (for example, meters originally come from the Earth's diameter, Celsius and Kelvin come from the boiling poin... |
It is called [Helmholtz Resonance]( URL_1 ). This is basically where there is a low pressure area outside your car because the air is moving relative to the car which, according to [Bernoulli's Principle]( URL_0 ), lowers fluid pressure. The air in your car wants to equalize with the lower pressure outside your car, so... |
Are you taking into account the environment? The temperature of hot water will drop much quicker when the air is cold/dry than it will when the air is warm/humid. If you only drink hot chocolate when it's cold out, but drink coffee at other times you may be introducing bias into your results. |
The Body raises its' temperature as this kills/slows the infection. Human cells can tolerate the slight increase so only the infection is targeted. You feel cold for two reasons: One is your body itself making you feel cold, this makes you shiver to heat up(and also seek blankets and heaters). The other is you sweat pr... |
There's a fair amount of Canadian currency circulating in the US as well. For the most part, small change is inter-changeable between the two nations and there no exchange rate applied when making a purchase. But if you insist, yes, you can absolutely exchange it at a bank. Just note some banks may have minimums, charg... |
Volkswagen isn't being sued over the pollution that the cars are putting out, they're being sued because they altered their emissions standards testing to report that the vehicles they produce are more efficient and create fewer carbon emissions. It's a case of false advertising and a "defective" product. Vintage cars,... |
Basically it's your 'fight or flight' mode going into overdrive. The psychology is a bit more complicated, but essentially because of a mental condition such as a phobia or panic disorder, your brain decides that there is an immediate and very serious threat to you even though there isn't. Your brain then tells your bo... |
Red cheeks is an outward display of embarrassment. There are all sorts of examples of involuntarily facial expressions that are tied to specific emotions (think crying for sadness, downward eyebrows for anger, smile for happiness). These expressions signal our emotional state to other people. It's important that they a... |
The reason for this is the tapetum lucidum, a reflecting layer in the retina of those animals. It improves their night vision. Roughly speaking, how well you see is linked to how many light photons reach the sensors in your eyes. When it is dark there are less photons around to trigger the proper responses in these sen... |
You've never listened to women playing tennis or men struggling to lift something? Most sexual grunting and moaning is a result of strenuous exercise and tension, plus the sounds of pleasurable release (which people can often make in nonsexual situations as well). |
Check/scan disk is not fixing hardware. It's fixing bad data on the hard drive. The OS was in the middle of writing data when it lost power, and that put the data on the disk in a bad state that makes the OS unable to boot normally. Check/Scan disk is one of the tools that your OS has to fix the problem. It's still par... |
Eggs in the US are washed of a natural protective coating. Reason being it contains trace amounts of fecal matter. This lowers the risk of infection from accidental handling, but means the eggs themselves ar emore likely to go bad if left un-refrigerated. In the US, eggs are pasteurized to kill any salmonella. The past... |
Microwaves are electromagnetic radiation with fairly large wavelength. If you take away the spinning mechanism and put in something like a block of cheese, you'll pretty reliably be able to see that the heat will most be applied in certain sections. If you measure the distance between those sections, you'll be able to ... |
The movie sound recording is mixed for use in theaters, which have different standards for audio levels, having a large dynamic range. Its an artistic choice of sorts, to give impact to loud sounds like explosions, gun shots etc. They could of course remaster these levels for home audio, but they don't because it costs... |
Pure, distilled water when frozen melts at 32 degrees F/0 degrees C. By introducing impurities, such as salt, into the ice the bonds between the ice molecules become weaker, lowering the temperature that it will melt at. A lower melting point means that the ice will melt sooner. Standard road salt allows ice to melt do... |
There's actually no conclusive study on this that shows that serif fonts are genuinely easier to read than san serif fonts. The idea is that the extra markings make a letter more immediately distinguishable from another letter. By having more angles on a letter, there is sharper contrast to one another and to the white... |
The simplest answer is, they increase dopamine in different areas of the brain. If you divided your brain into 4 zones (1-4, and analyze only dopamine/serotonin) in zone 1 an increase in dopamine may cause excitable neurons which makes you happier whereas serotonin inhibits those neurons, in zone 2 serotonin may depres... |
Tears come out of your eyes because when you yawn you're flexing the muscles near your tear ducts. You're essentially squeezing the tears out. Nobody's sure why exactly that happens, but some have suggested it's because your eyes tend to get dry when you're tired. Yawning relubricates them for you. Interesting fact: th... |
Outside of heating therapies (same as a heating pad), it sounds very bunk, and the vast majority of the studies in that review are shit. To the point where I'm surprised they passed peer review. |
I think it is almost a negative image of the ring or the bracelet. When you wear a ring or bracelet, the nerve endings beneath the skin are constantly being stimulated by the jewelry, so they grow desensitized to avoid overstimulating your brain. This means that after removing the ring or bracelet, you are exposing the... |
They tailor the tastes to the local market so they'll sell more, but there might not be much call for these items in other markets. For example, Big Macs are pretty popular world wide, but in India, not many people eat beef. Instead, McDonalds has the Maharaja Mac, which uses chicken patties and has a spicy sauce in pl... |
Err. I haven't noticed this to happen in any online game so thought I'd start with that. Video games online don't use much bandwidth so getting a faster connection doesn't really impact them that much. (Unless it comes with better latency) Games are mostly impacted by latency or ping, this is how long it takes for a pi... |
I thought this was just a personal thing. I chalked it up to being non-stop occupied from the minute I wake up till dinner is finished and cleaned. Then alone with my thoughts. Thoughts lead to the emotions. Also tiredness/fatigue. From where did you get this idea? Just personal experience? I notice that I'm busier (i.... |
If I remember correctly that is where they attach to the muscles to transfer oxygen and haul away waste. |
Microwaves are photons, like light. They are much longer (lower frequency) than light, about a 1cm wavelength. [This nice graphic]( URL_0 ) shows the whole spectrum. |
Chemo drugs are actually just poison. It inhibits cell reproduction so it kills cells that are reproducing. The hope is that because cancer is just a set of rapidly reproducing cells, it will kill the cancer faster than the rest of your body. This is also why people going through chemo tend to lose there hair. Hair cel... |
1. Studies show that many people won't put on their seat belt *at all* if it's too much work. 2. These harnesses make it hard to do tasks inside the car that involve reaching. Nylon loses strength as it ages from being exposed to uv light. The certification for strength becomes invalid after 3-5 years. You'll see this ... |
Cheese ages with controlled temperature & humidity. It is often allowed to grow a rind or sealed in wax that keeps bad stuff out. When you cut it into blocks in your fridge, you lose the protective layer & humidity controls, exposing the cheese to microorganisms that want to eat it. Ripening cheese is protected in some... |
This is my first ELI5 answer, so I hope I'm ELI5'ing enough... For simplicity's sake, let's assume the entire depth of the atmosphere is below freezing, so all precipitation will fall as snow and accumulate. The amount of precipitation that falls from a given storm is influenced by numerous factors. Moisture in the sys... |
What you may be refering to is the Pitch Tone of the message. High pitch notfication sounds are going to sound higher than lower pitch ones. When i get an amber alert, it uses a stock notfication sound not my normal one which is a higher pitch however it will not bypass my volume settings so that might be throwing you ... |
Gold is much rarer, resists corrosion almost indefinitely, and (recently) is used in a lot of high-end electronics. Silver is more common and eventually tarnishes, so it was considered inferior for ornamental uses back in the day. |
This might depend on the city/country, but in Germany works like this: There is a antenna in the front of the tram or bus (which you might be able to see) which sends a signal on a specific wavelength which includes the tram/bus number (the number of the vehicle, not the line) and the current time as information. All o... |
lasagna (like many foods) have a lot of seasoning (the tomato sauce especially). the longer the food sits, the longer the seasoning marinates. thus, more flavor |
Everyone here is wrong (except Mjolnir2000). Socialism doesn't mean state ownership. Communism doesn't mean totalitarianism where no one owns anything. Capitalism doesn't mean free-market economics. Socialism is when workers democratically own productive property. Capitalism is when productive property is owned private... |
The air bends light very slightly, and in a somewhat random direction. These tiny changing perturbations cause lights to twinkle and shimmer. It is why the stars twinkle! |
Most TV commercials are about creating and reinforcing a brand. Quick question: off the top of your head, when you think of NFL football, which beer comes to mind? If you live in the US, chances are you answered "Bud Light". And that's because TV advertising works. It doesn't necessarily mean you are going to go out an... |
Well basically Pemex raised the rate to rougly 16 pesos per litre. That's roughly $1.30 Canadian. But the minimum wage remains around 80 pesos/day. So people are looting in rebellion, but also to get the stuff they need. But there's been some speculation that the government is arranging the lootings Some context is nee... |
My guess is that one of the drawstring ends can easily get snagged by other garments or other parts of the hoodie, then as the washer or dryer turns the clothes are tossled and the string is pulled. Imagine the drawstring end getting sandwiched in some jeans then as the washer spins the jeans move away from the hoodie ... |
It's just a super-fine abrasive, and acts the same as a super-fine-grit sandpaper. There's really nothing magic going on there. In fact, the material itself is something called [melamine foam]( URL_0 ), and you can buy generic versions of it on Amazon crazy cheap (like, 100 of them for under $15). |
Sexual arousal is a very base part of the human body, one we share with most animals. When we are aroused, arousal starts to interfere with higher brain functions as, being a base trait, it is strong and simple. Orgasm is even more interesting, with males' brains switching off mainly in points such as the amygdala, res... |
Because sound travels through the solid medium ( the floor slab). On the floor above, people are directly in contact with the surface; while on the floor below, you're only depending on the noise traveling through air and noise traveling in air is divided into reflected, absorbed and transferred, major percentage of wh... |
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