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How does the circulatory system handle/adapt to the loss of an extremity or limb creating apparent dead ends in the veins?
Major blood vessels have smaller vessels and capillaries branching off them along their entire length. If the main vessel is severed, these smaller vessels take over as the return route. If a section of a major highway is destroyed, the cars aren't trapped forever. There are lots of offramps they can use.
ELIM: Why do I feel hungry when I'm bored? Also, why do I still fee hungry even after eating a sufficient portion?
When you eat it doesn't instantly make you full, it's only when it goes through your entire digestive system and gets absorbed as much as possible do you get full. This progress takes about 20 minutes to occur, which is why you're full at really big feasts and birthday parties. Be aware that I may be wrong, but as far ...
Electoral College Why Do We Need It?
America made the electoral college because a majority of the population were uneducated at the time. This prevented inadequate candidates from winning the election.Now a majority of Americans ARE educated so obviously we don't need the electoral college any more. We are willing to transition the method of picking the p...
Why shouldn't I use accelerant to start a fire?
I think this is a general rule to prevent people from doing stupid things. With petrol. There is a world of difference between a small rag lightly soaked in a heavy petroleum destillate used on a small stack of wood and dousing a bonfire in petrol before throwing a match on it. Also, a world of difference between being...
Do energy drinks (Red Bull, Monster, NOS, etc.) really wake you up/energize you? Or is just advertising?
It is both, actually. They have a lot of caffeine which is a perfectly legal stimulant to sell. But some of it is just BS. Red Bull gets it's name from taurine. Which, in turn, means bull. So, they put in lots of taurine, tell you it gives you energy and never explain why lots of taurine is a good thing.
what is wrong with the FIFA organization?
1/4 of the world loves soccer. Therefor there is a lot of money involved. Where there's a lot of money, there tends to be corruption. Hosting the World Cup is seen as a huge deal. Showing off the prestige of your country. Delegations have been bribing Fifa officials for years to get the hosting rights of the World Cup....
why in the age of instant electronic communication does it take 3-5 business days for a bank check to clear?
Float. The money you deposit by check is immediately available to the bank to use, but they don't credit you so they can have a few days of having money that you can't take back. Want it to post quicker? write a check for slightly more cash than you have in your account, it'll clear instantly AND bring its Overdraft Bu...
How and Where do websites store their massive amounts of content?
Major web service providers like Google, Facebook, Amazon, etc. have their own data centers—basically warehouses full of hundreds or thousands of servers with a combined total of petabyte worth of storage capacity . Data is also often replicated across multiple servers / storage units for greater durability and availab...
How do you build synthetic molecules?
The best way I can explain it is to think of going on a road trip. To get from A to B, there are several routes you could take. You want to stop at a particular tourist attraction on the way, so that eliminates some of the possibilities. Another route is notorious for constant traffic jams, so that's out. Eventually, y...
How can people drive from one point to another point without remembering every detail of it?
People create memories better when there's some emotional association with it, so when you're driving on a plain highway often your brain doesn't pick out anything special to remember so it just forgets it.
How does a natural lake not drain completely into the ground it is above?
They do. That's what saltpans and some flatlands are. However, the only do this if they don't get constantly fed by rivers and streams. When there is no replenishment, they begin to shrink. Largely through evaporation, but also by seeping into the earth below, creating a watershed.
How do games randomly generate a map using a "seed"?
Should there be a mountain or a valley here?", and other such questions. It decides how to answer these questions by looking in a big book of random numbers - it picks a place to start reading, and moves along as it answers all those questions about the map. A "seed", in this metaphor, is just a way of saying where in ...
How are unpaid internships even legal?
It's legal for non-profits because of their tax-exempt status. As for other types of organizations, it seems their legality is contingent upon providing credit for school. Like in your case, instead of going to class you go to your internship. So it's as if you're studying, which schools don't pay you for . On my job h...
Why so much hate on the Olympic Games in Sochi?
Honestly the propaganda machines from Russia and the USA are in full force. Both sides want to make the other side appear weak. I would say between the EU and the USA, that is where the bulk of the criticism is coming from. If the reports of massive corruption are true than I'm sure some of the Russian people are feeli...
Apparently there have been thousands of nuclear bomb tests conducted worldwide, how come there is little to no recent video footage of these tests?
For a while it was a tourist attraction in the deserts of the southwest US. But, when it was realized that the explosions caused radiation sicknesses and cancers even for people far away from the explosions, they were moved to areas away from people . like the Bikini Atoll, or underground in caves. There hasn't been an...
How do children who grow up with more than one language separate them? Why doesn't it come out out as one mashed up language?
I suspect there's more than one answer to this, with different factors for different children. For example, I have a bilingual niece. When she was growing up, her mum would only speak Hebrew to her, while her dad only spoke English to her. As a toddler, she was ask her dad if she could have some sweets in English, and ...
What is the black stuff athletes put on their cheekbones? What is it's purpose?
In Pee-Wee football our coaches would burn one end of a wine cork until it was black with ash, blow out the flame and smudge it on our faces. I don't think it did a darn thing but it did make us look like bad-ass Pee-Wee football players.
How come Indian-American immigrants are the highest income group in US
There's a lot of people in India, with a huge difference between the ones at the top and the ones at the bottom. The people from India that get visas to work in the US are all at the top of their field in high-paying professions like software development and medicine. The call center employees and the people that make ...
Why do I feel like the strife between Police and minority communities is at an all time high? Has it always been this prevalent? Is the media sensationalizing unlike before?
This is an all time low. There were dozens of huge riots from 1965 - 1977. Back then there was segregation, poverty, lynchings, and widespread police violence. Considering schools are more segregated than they were then, minorities live in communities which are actually poorer than they did then, it's amazing that ther...
What is "Profit Sharing", and is it an effective way to boost morale and production at small businesses for otherwise hourly employees?
A lot of people are talking about the 'morale boosting' effect and how it can benefit everyone - but as someone who works in the 401k industry, a lot of the 'Profit Sharing' programs are really a way to maximize the owner's ability to contribute to their retirement plan. For many of them, the goal is to maximize their ...
What is an IPA, and why does it seem a lot of people are on the IPA bandwagon train?
I'd like to know this too. I've never heard anybody talk about IPAs untill this year, and it's now an all time favourite. Where were all of these people before? Seems like everyone was drinking regular beer before unless I haven't been paying attention to life.
How come child prodigies usually have ADHD?
ADD/ADHD is one of the most rampantly misdiagnosed things ever. It's common for kids to have fleeting interests/not have the same level of intense concentration as adults.
Why do dogs love to play fetch so much?
They love fetch because it is an outlet for their natural prey drive. They get to chase down their 'prey' and have the satisfaction of catching it and sharing it with their family. Then they get to experience it all over again as soon as you throw their toy.
How does Google Maps obtain my computer's exact location if my computer doesn't have GPS?
The network you're connected to has an address associated with it. If they know the IP address of the modem you're being routed through than they know your location to within however big the building you're in is.
Why do natural gas water heaters need venting but a gas stove does not.
First off, lets be clear that a typical 40 gallon gas waterheater is 40,000 BTU. When I checked my gas range, it was more than that. So venting is not based on the quantity of gas burned. Some years ago I taught night classes in HVAC for the local vocational school. In the mail that I received was a report on children ...
why does it feel like I am traveling really slow in an airplane when really we are flying at speeds close to 900 km/h?
Because of Newton's First Law of Motion. It feels like you're traveling slow or not traveling at all because you're moving at a constant speed. Objects moving at a constant speed or not moving at all aren't accelerating so there's no force acting upon them to make them move any faster. There ARE forces acting on them b...
What is the best way to get drunk and have a minimal hangover?
Sorry man, but you've pretty much exhausted the list there. Hangovers are due mostly to severe dehydration. Have one drink of water between every alcoholic drink and your morning self will thank you. You won't get as drunk, but that's not necessarily a bad thing.Pedialyte! Buy two bottles, pound an entire bottle before...
why is democracy generally praised while populism is generally denounced?
In my experience, people call it democracy when they're in the majority, but when the politicians do something with majority support and that person is in the minority, they call it populism.
When my phone doesn't have signal it says "emergency calls only." How can I still make emergency calls without service?
Normally you are only allowed to make calls on the towers that your cell provider operates or has roaming deals with. But emergency calls anyone with a tower must carry, so you may still be able to reach a competitor's tower.
Why do physicists believe nothing can go faster than the speed of light?
Speed is relative. If a person is standing by the side of a highway and sees a car go by, they would say it is passing them at 100km/h. A person in a slow moving truck seeing the same car pass them would say it is only passing them at 10km/h . Furthermore any position can be taken as stationary. The person in the car w...
Why do jet fighters fly so close together? Isn't that an unnessecary risk?
When under radio silence, they exchange hand signals, so being close together helps. It also helps mask the number of planes to enemy radar, because it's usually not sensitive enough to distinguish close together planes.it also reduces the total radar cross section, so 2 or more fighters flying close together might onl...
Why are certain video games significantly more expensive in AUS than they are in the US.
Our dollar is/was crap. Even when it's not crap, we have to put up with the prices from when it was crap because the companies know they can charge us that, because they always have and we've always paid.
Court ruling regarding the shooter's iPhone in San Bernardino.
The FBI got the shooter's iPhone. They can't access its contents because of how the iPhone's security is set up. The FBI requested that Apple creates a version of iOS that allows them to break into it to access the guy's information. Apple is refusing because they say if they create it, it could fall into the wrong han...
Why I don't wet the bed after dreaming of peeing at an older age, but I used to when I was a child?
A lot of things contribute to bed-wetting. There are genes associated with it , reduced functional size , and a reduced level of communication between the bladder and the brain. The genetic component never goes away, of course, but some of the other factors do, and mitigate it so you don't wet the bed as an adult . One...
Where does wind and wind gusts come from?
The sun. It sends radiant heat down on the earth, and it is absorbed unevenly. That difference in heat makes pockets of different densities in the atmosphere, causing the air to move around in an attempt to equalize the pressure. But since the earth is always turning and both absorbing heat and releasing some into spac...
Why does Hepatitis B have DNA and Hepatitis A, C, D, and E have RNA?
They're different viruses that are generally unrelated, but all cause an inflamed liver. They actually have wildly different presentations/courses They're, very unimaginatively, named A, B, C, D and E in the order that they were confirmed as separate species of Hepatitis causing viruses.
Why do some animals hibernate in the winter instead of migrating or simply living somewhere warmer?
A mouse would really struggle to migrate to somewhere else - they're just too small to cover any distance which would make a significant distance. And if they did, they'd be moving into areas which already have a small mammal population, which almost be definition is stretching the local ecosystem to its limit. They st...
How does buying and selling debt work?
Also, a lot of banks aren't in the business of collecting, so it's a lot easier for them to just sell debts to get it off the books, and not have to worry about it.
How do people find marijuana dealers?
it isn't taboo. If you are aware that someone smokes weed, they are usually happy to share their sources with you. That's how I've always done it anyway.
Can diplomatic immunity really let you get away with crimes like murder as they say on TV?
Strictly speaking, yes. Full diplomatic immunity means you cannot be sued or charged with a criminal offense by the host country. This only applies to diplomats and their official administrative staff and families, not consuls . That doesn't mean diplomats can just get away with crimes. At the very least, the host coun...
US Politics & House Of Cards
TLDR: All senators are congressmen, but not all congressmen are senators. Congressmen create law, Governors enforce law. In House of Cards, the Congressmen are on a federal level, while the Governor is on a state level. Think of the Governor as the state's president: Executive powers fall to him/her. The Governor doesn...
Why are some incidents covered very heavily in media [every single ISIS move in Syria], whereas others don't [Kenya college shooting]?
The media is generally comprised of businesses. So a news outlet's first priority is not actually reporting on things they find important or somehow newsworthy. Their first priority really is to attract views. It might not be particularly important, or there might be other important things going on as well , but since ...
Why are satellites and the likes covered with gold foils before thier launch?
One of the trickiest things in satellite design is thermal control - keeping the satellite's insides at the right temperature. The biggest problem is overheating, both from the electronics inside and the heat from the sun shining on the satellite. On the earth, thermal control is easy - just add a fan, and let the cool...
What is the escape velocity if a black hole?
A black hole has a feature called the event horizon. Beyond this point there is no escape velocity. Once you've crossed the event horizon you're going in.
Why cats only move their heads to look, instead of their eyes, like humans or some dogs?
My first guess would be because that's what predators do. They use stereoscopic depth perception to accurately track whatever it is they're about to attack. They could also lack the muscle control to move their eyeballs around freely as we do.
What are weak and strong nuclear forces?
Simplest terms with some inaccuracy - atomic nuclei are made of little particles called protons and neutrons. The protons themselves are made up of quarks. The quarks are held together by the strong force, to make the protons and neutrons, and the protons and neutrons are also held together by the strong force to make ...
Why do courtroom sketches always look the same?
The layout, furniture, lighting, and dress code for courtrooms is generally very consistent. It's fairly systematic / ritualized through tradition and culture. People are instructed on everything from body language to facial hair / grooming norms before appearing in court.
Why saliva doesn't quench your thirst
Because there usually isn't enough of it compared to how much you want to drink. The effect is only temporary though, as the net intake of water was zero, it will take a while before your body realizes this though.
Why poultry is more dangerous to consume raw than beef?
There are many theories, but mostly I've heard its due to unsanitary slaughtering. The chickens are hung upside-down before death and have their heads chopped off while hanging. They end up defecating all over themselves and they are poorly cleaned after defeathering. This results in contamination of the skin and flesh...
What happens to our bodies during say, a car accident, that makes time "slow down"?
The traumatic impact your brain has and perceives it's surroundings. So many things are happening at once and your brain does its best to comprehend it. Just my thought. Could also be a force of impact that affects your brain. Personally as a racecar driver, more dramatic looking and painful impacts I had seemed to hap...
Why do countries need gold (like the gold in fort knox) to maintain the value of their currency? How does this work?
It doesn't anymore. Most nations have abandoned the gold standard, which is what you call tying our currency value to the gold. Under such a system, your money is basically worth some amount of gold. Nowadays we use fiat money. It's basically worth what it is worth, because the government says so. That is to say, unlik...
why would a publicly traded company go private? How?
They would want to go private because if they company is doing well the owner would want to own as much of the company as possible. Companies mainly go public because they need fast money buy selling shares of the company it also opens up a lot of bullshit for the business mainly pleasing stockholders who don't have an...
Why is it dangerous/deadly to inhale helium?
It's not. Helium is completely inert and doesn't react with anything in your body. However, it is not oxygen, and if you keep inhaling it, you're not getting any oxygen and suffocating.
why are aliens generally portrayed/imagined as green or gray?
I've heard a few theories of the stereotypical alien abduction being possible repressed memories of child birth, being pulled into the light, slender white beings examining you with lights and objects.
Why do sci-fi films depict big explosions in space as a ring instead of a sphere?
It's a stylistic choice. I'll use Star Wars as an example. In both Star Wars and Return of the Jedi, when the Death Stars explode, they filmed an actual explosion and that was what was put to film. You could call them spherical. But George Lucas started tinkering with the films, and they added those rings for the explo...
Why do girls matte their hair to the side of the shower?
It's so it doesn't clog the drain, which would be way grosser to clean up than some dried hair on the wall of the shower. If they tried to throw it in the garbage during the shower , they would have to stick their arm out of the shower, aim, and throw it. Odds are they would miss, since hair is hard to throw. In the me...
how do bulls not impale people more often?
How often are people hanging out with loose bulls? They don't regularly, and typically those who do are trained to minimize risk. Also, there just aren't that many bulls relative to cows because they don't produce milk so they are usually used for beef at a young age.
Why do shows have to change or make puns of famous brands while other shows like South Park can just say the brand?
They don't *have* to change it, although if they portray the product badly the original owner might sue for libel. South Park is widely known to be satirical and in order to win a libel suit, the company would have to prove that people would take the claims seriously so South Park has a stronger defense in that departm...
Why is fire often described as the most dangerous threat to a warship?
One of the threats on warships comes from fire getting to sources of fuel or ordinance and setting it off. Older battleships such as the *Maine* used coal bunkers to store fuel to power the ship -- the type of coal it used gave off a volatile gas while in storage, which led to a fire, which led to ordinance stored in t...
how do cat allergies work?
It depends. Some people are allergic to the danger , others the saliva that cats have on their fur from grooming. It's more often than not the saliva left on hair that people are allergic to. The severity of the allergy can vary person to person, I know someone who can't be around any cat hair, while another will break...
Why do people who have downs syndrome have that 'look'?
They share the same genetic defect of the same extra chromosome, which codes for the same type of things and tends to cause the same type of developmental problems. It is sort of like how people with broken arms tend to share the same sort of look; pain in the arm, problems with moving their arm, that sort of thing. It...
Why does bread suddenly start growing mold after a certain amount of time?
Mostly harmless stuff. Rule of thumb; if you can see it, scrap it. Also, most molds don't penetrate very deeply. If you don't want to waste just cut off the affected area.
Why is a bottle of orange juice less expensive than than the oranges it would take to make that much orange juice?
It's such a perfected manufacturing process they have for OJ, that their buying power and lower overhead can keep prices low.
Has anything actually changed since the Edward Snowden leaks of 2013?
A handful of things. First, a lot of services, such as [Telegram] and [Whatsapp] are implementing end-to-end encryption, deliberately designing their software so even they can't snoop on it. When properly implemented, this sort of change sidesteps government ability to do dragnet surveillance and forces them to have to...
what's better for your body? 50 push-ups in the evening or 50 push-ups in the morning and why?
I have to do this because the pizza bagel song is stuck in my head.. *50 in the mornin'*50 in the evenin'*50 at suppah' time*When your doin' push ups, any part of the day is fine
What is Fortnite, how does it work, and why is it so popular right now?
It's just been released on mobile too, it's probably why you've seen a lot about it right now
Why are Stradivarius violins considered musically superior to modern-day violins despite being made more than 300 years ago?
The price. [They're not actually superior]. > Despite a general belief among violinists that Stradivari and Guarneri violins are tonally superior, the participants in Dr. Fritz’s test could not reliably distinguish such instruments from modern violins. Only 8 of the 21 subjects chose an old violin as the one they’d lik...
Why does voltage tester shows phase in only one hole of an outlet?
A sine wave spends half the time above zero, half below. If zero represents ground, that means half the time the 'hot' wire is at a higher voltage than the ground wire, the other half of the time it is at a lower voltage than the other wire. Current flows when there is a voltage *difference*, so both states cause curre...
When I am falling asleep, why do I suddenly know that turning over will be more comfortable and can't sleep until I do?
another question i have bout sleep is why, when i lay down for bed, do i twitch a couple minutes before i go unconscious? it's happened all my life. i now know when i twitch, sweet sweet slumber is not far off but i've never known why this happens.
Why don't the 911 emergency operators just trace the caller's location via their registered phone number?
Because it's not always accurate. Let's say you call 911 from your cell phone. You're in a 15 story hotel, and someone you love is in front of you having a heart attack. Don't you think that the ambulance crew would benefit from knowing which of the 300 rooms you are in?", 'It takes more time to trace it than by gettin...
How the Bible is organized in both the OT and NT and how it flows.
OT is part one of the story. It talks about the beginning, a King over all the world, all the good guys and bad guys, wars, and what you can and can't do. It also talks about the really really good guy that will show up later. The NT talks about how the really good guy gets here, how he hangs out with his friends and t...
Why do children pick up the accent of their locality, rather than their parents?
I teach ESL, English as a Second Language, and students that come to the US prior to puberty have a much greater chance of speaking English like a native speaker. If they come after, they will more than likely always have an accent. Students that learn a second language or accent at an early age and maintain their nati...
how piracy is not considered as theft (by some)
Why is it obviously incorrect? It's *true* that piracy doesn't remove the original; that doesn't necessarily mean that it isn't theft, but at the least it's a different kind of theft than taking someone's stuff from their house.
If Russia is denying that the troops in Crimea are theirs, why would it be an international incident if someone attacked them?
Didn't Russia say they were ready to step in if ethnic Russians who are in Ukraine get targeted?
How are Audi & BMW able to take jabs at each other without getting into trouble?
Also, see it from this perspective. By making fun of each other, they get free media coverage because all media will put this in their frontpages. Quite smart actually, free promotions. Plus their targeted consumers will think it's fun. Also, both brands are top-notch, they know that. No need to sue. Keep it going and ...
What is happening physiologically when I listen to individual instruments in a song? e.g. when transcribing
I believe the brain filters out the other instruments using a variety of techniques. It is a bit beyond ELI5, but if you look the Fourier representation of an audio signal, it is essentially a collection of waves of various amplitudes that simulate different parts of your Cochlea, forming electrical signals that you br...
How can an old countertop radio with no apparent antenna pick up fm signals very well while every expensive receiver I have ever owned just receives static?
If I'm not mistaken, the fancy receivers require that you connect an external FM Antenna to the back. You can get pretty elaborate FM Antennas . For example, here is one from Crutchfield. _URL_0_ Your clock radio has an antenna already, and doesn't require an external one. It's just built in.
If you're trying to drink more water, does it make any difference if you drink it all at once or small amounts more frequently?
If you're trying to get hydrated drink pedialite it has the proper isotonic properties to be most efficiently absorbed by your body. you can also make it yourself with sugar and salt. correct proportions are somewhere floating around the internet.
Why would I rather stare into space and do absolutely nothing than do something productive such as revise for exams?
Your brain needs time to process new material, just because you're not actively studying doesn't mean you're not learning anything. Studying in regular bursts with undemanding or unrelated activities in between is more effective than studying long hours.
What is happening on a microscopic level when you polish rough/tarnished metal to a shine?
So, come think of it as a desert. That is, the surface of a metal is actually formed by a bunch of dune-like, rough spikes, facing different directions, with different slopes, and little valleys of diverse width and depth. This means that when light strikes the surface, it is scattered heterogeneously, no definite dire...
Why do flies like landing on humans? What are they getting out of it?
Flies hover because they sense the heat and odors that indicate the liklihood of something potentially nourishing - the gunk that grows on our surface when we sweat and the bacteria starts up on it, and probably the lovely CO2 and our breath that also indicates spoilage . If they can set down for a few moments to rest,...
Why don't desktop computer have their own battery?
You can get one but they're often fairly expensive . Desktops are often trying to compete to be the cheapest one possible and having a large battery drives up the price unnecessarily. Laptops can have a battery for a few reasons. First, they're designed to be portable so a battery is core to that design. To help with t...
Not trying to be crude but... How do porn stars with gaping anuses hold in their waste??
Do you mean during filming, or in general? Before filming, they get enemas to keep things clean. In general, the anus is pretty good at snapping back to it's original size, but if you really stretch it out, it will be permanently disfigured. Those individuals need to start wearing diapers regularly.Is the legend of ret...
How come `60s technology got us to the moon but today`s tech cant get us to Mars?
It has a lot to do with finances. In the 60s a considerable amount of the country's gdp was spent in the space race. Account for inflation and the fact that it is a high bidding market with the addition of spaceX and other countries entering the space race and you see quickly that NASA prioritizes on research rather th...
Do missiles detonate when they are fired at the ocean? How do [the agencies firing the missile] know that there aren't boats in those areas at the time of impact?
Test missiles are launched without bombs on them, so they don't detonate at all. But they're heavy and fast-moving and if one hits your ship it may kill you anyway. Most countries will only fire missiles at a test area where they have just sent scout planes and ships to ensure no one is there. Some country might be rec...
How the Nazi party got total control of the government of Germany so quickly after Hitler's election
The best way to understand it is through the account of a teacher who performed an experiment at his school, called 'The Third Wave'. It is a long read but it is worth it and gives you a much better insight than a few succinct paragraphs on ELI5 would. _URL_0_
Why do anime episodes often get removed from YouTube for copyright but never get removed on sites like Crunchyroll?
Presumably because Cruncyroll is an anime hosting service that has gone through all of the legal steps to display the content. While some random user on YouTube has not, and YouTube takes it down because they don't want to host copyright content without the permission of the distributer.
Why do most if not all businesses in the US have a flag hoisted in front?
Did you, by any chance, visit on the last weekend of May, June 14, July 4, the first weekend of September, September 11, or December 7? Did you walk past schools or government buildings a lot? I've lived in the U.S. all my life, and I don't recall seeing very many businesses with flags in constant display. I'm even in ...
Why does breaking the sound barrier create a white cloud?
The white cloud is literally a cloud - it's not dense air, it's water vapor. The speed of sound is the maximum speed that a pressure wave can travel in air. When a plane moves, the air in front of it is compressed. The compressed air normally expands out in concentric circles. When a plane exceeds the speed of sound, i...
Why do turn signals always flash at different rates?
It's a very simple circuit where a capacitor\u200b builds up a charge over x time then releases that charge over x time. Like a battery, capacitors don't all hold the exact same charge so their cycles are slightly off.Here is an explain it like I'm 10. _URL_0_ Here is an ELI5. Imagine the water is electricity and the b...
Why do guys grow hair on their chests and backs, but girls have none? What's the point of even having any in those places?
Aside from the how answers regarding the testosterone and genetics, the why answer is a little bit more mysterious. It's likely a combination of cultural sexual selection and possibly some environmental benefits or drawbacks to increased or decreased body hair. There are plenty of places in the world where women are ha...
When a tank is filled with helium does the tank become lighter or heavier?
If you pump helium into a tank, compressing it, it gets heavier . But only 1/8 as much as if you'd pumped oxygen into it.
What effect will Mt StHelens apparently refilling with magma have?
Maybe something maybe nothing, it's all about the pressure. If you cap a 2 liter of soda and shake it up a lot, it will pop explosively. If you uncap a 2 liter of soda and shake it up a lot, it just spills everywhere.
Why vitamin supplements can't be used as substitutes?
Dietary supplements are not FDA approved and therefore manufacturers cannot legally claim their products can replace any part of a healthy diet.\rMost of your other thoughts fairly accurate. The body cannot absorb certain vitamins/minerals in the large quantities found in supplements, and instead the vitamins pass thro...
why can costco provide benefits and a living wage to employees but Walmart claims not to be able to?
Costco has perhaps 400 warehouses, largely in big cities. Walmart has at least 3000 stores mostly in small towns up to medium cities and outer suburbs. Costco is essentially betting that they can offer a high wage and pull the best and brightest 1% of all retail employees after they've learned skills from working at ot...
Why do dogs "fetch" only to have the item they fetched thrown again?
Also remember when we say fetch to a dog, the dog doesn't understand the word fetch like we do. You teach your dog the game of throwing a ball, retrieving it, bringing it back, throwing it again, and you assign the word fetch to it.Dogs have a chase instinct when hunting prey, and a pack instead where they retrieve and...
Why are the Chinese so obsessed with aphrodisiacs and sexual potency cures, and why does it always seem to involve killing endangered animals?
Because it's not only about aphrodisiacs and sexual potency cures. Chinese medicine includes drugs for every possible ailment you can think of. Some of the ingredients, from endangered animals for example, can make a variety of medicines. The media tends to focus on sexuality related drugs though, because let's face it...
Why Miley Cyrus gets away with smoking marijuana on TV?
Was this done where it is legal? I'm unfamiliar with what happened. Also smoking weed/being high isn't really illegal, possessing it is, which means by the time anyone got to her it wouldn't matter because it is likely all gone.
Why haven't traits such as laziness or social awkwardness been bred out of the human race?
Those traits are not solely due to genetic factors. Even if they are due to genes, there isn't enough selective pressure to breed those traits out.Half joking but I would imagine laziness is just conservation of calories which for most of human existence were scarce. L
Why are concert volumes so high?
A certain amount of volume is necessary for the experience to be immersive, to make the audience feel like they're at a rock concert. If you've ever been to a show that's too quiet it's a very weird experience, feels like you're just listening to the radio and it's easy to be distracted by anything other than the band....