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If explain like I am five is for complex topics why can I google 90% of the answers? | First, I'll just say that you have a good point for some of the questions here. However, ELI5 isn't so much about topics that you can't find an answer on Google as it is about topics that you can't find an answer *that you understand* on Google. It can be difficult to get a good explanation of something like black hole... |
Is Sweden a Capitalist or Socialist Country? | > I understand that socialist governments manage the distribution of property, possessions, money etc this is not true. You seem to be conflating socialism with communism. Socialism is essentially deciding that it is the government's job to provide certain services for its population. So, low cost of education, single ... |
Caitlyn Jenner in Vanity Fair and the big deal of it? | A famous Olympic athlete named Bruce Jenner , came out as transgender a little while back. Since Bruce was a huge star and pretty much the national standard for masculinity back when he was competing, this was pretty big news, and raised a lot of people's awareness of transgendered people. So Vanity Fair has now given ... |
Why can't we harvest all the worlds energy from the Earths magma core? | Several reasons. First, geothermic energy is actually a viable energy source and we do use it in small scale energy production. However, I assume you're talking about the outer liquid iron core. Just as a point of clarification, that stuff isn't magma; magma develops in the mantle in small pockets of really hot rock, t... |
Why are inconsistent costs of procedures and price-gauging within the healthcare industry passively accepted in the United States? | people won't like this, but please stop loading the questions so much. we may agree, but try to be objective to get a simple explanation for your issue. |
most sounds seem to be made by objects bumping into each other, so why does tearing a piece of paper in half, make a sound? | Imagine Velcro, as you separate the two parts, it makes a sound. In this larger scale, you can easily understand that the sound is from the plastic snares rebounding after being stretched apart by the opposing fibers pulling away from them. Paper is nothing but overlapped fibers pressed flat, so when you're pulling it ... |
How come the US spends a higher percentage (25%) of its budget on healthcare than the UK (18%) even though it doesn't provide free healthcare like the UK does? | Politics. By law, negotiation for lower drug prices is forbidden, and also the private health insurance industry formed in response to US involvement in WWII. Employers here were having difficulty attracting good workers, so they started offering health insurance as a benefit of employment. Also, after WWII the US was ... |
Why I have to wait ten minutes to post another post on Reddit. | This is not an ELI5 question, but I'm nice so I'll answer. The wait time is to prevent spam. If there was no limit, people could just continuously post, flooding the subs with terrible, terrible posts . |
How do solo concert performers memorize such long pieces of music | It's less about memorizing, more about knowing what you want to hear and being able to translate that into your instrument. When performing solo you can even change songs up and many people often do because you don't have to follow what other band members are doing. Take this guy for example. You will never hear this s... |
What is the reasoning behind above-ground power lines? Germany buries them, mostly, but the USA keeps them exposed to the elements. | I have underground lines in my neighborhood. As I fount out several years ago when we lost power, repairing underground lines is the homeowner's responsibility. If they were overhead lines, the power company would do it. So I had to spend $3,000 to have my lines dug up and replaced. |
Why do doctors have very tiring work schedules that may risk harming other people? | Because hospitals have found that more mistakes are caused by more frequent doctor changes, since information doesn't get passed on. Therefore, it's better to have doctors stick with patients as long as possible.In Europe, generally, they have changed things so that doctors - particularly residents - work less hours. |
is looking for moderators! | So i don't have 2000 karma, but if you look at my history, my top comment is from this subreddit, and most of the comments are me on askreddit or this one trying to help or get into hobbies with the other random subreddits. I am in a pre-medical school program, so biology, physiology, a bit of psychology, etc. is what ... |
Kevin Spacey's escape in The Usual Suspects | No one will ever see his face again if he doesn't want them to, so getting the description out does you no good. He can vanish at will for decades at a time, as the movie established earlier. *and like that he's gone.* |
Why is it that some people can sleep through loud alarms and noises while others seem to be awoken by the drop of a needle? | Some people might remember hearing a noise in their dreams- their subconscious wasn't alarmed by the loud noise.But generally- some people are too deeply asleep to 'listen' while others are lightly asleep and prone to being disturbed.If your subconscious is 'watchful'- having been a soldier or being a parent of small c... |
Why isn't there a murderers registry like there is for sex offenders? | Despite the fact that it isn't true, lots of people think that all sex offenders go after strangers' children. To placate this vocal portion of society, politicians put in place the registration requirements. Fewer people are worried by ex-murderers indiscriminately murdering their children .Did nobody really read the ... |
Why is Saudi Arabia not diversifying their economy to include solar or wind power? | Solar and wind are strictly local power sources. There isn't any feasible way to transport wind or solar energy to Saudi Arabia's main oil customers and the countries immediately bordering SA do not have energy needs on the same level. |
Why is it that the velocity of a ball when it reaches its highest point is zero? | It's pretty simple actually. Let's say when you throw the ball, it's going 10m/s up. Gravity accelerates everything down at 1m/s/s. 1 second after you throw it, it's going 9 m/s up. 2 seconds after, 8m/s up. And so on. 10 seconds later, it hits zero. Then a second after that, it's at -1. And so on. So, for the same rea... |
What does LSD do? | It does great things. But seriously, it latches onto a specific serotonin receptor subtype and activates it. I don't think the process is fully understood, but this inhibits activity in the part of the brain associated with logic and the ego; not ego in the sense of self-esteem, but ego in the sense of recognizing ones... |
Why, when the majority of African Slaves went to South America and the Carribbean, in dramas is it almost always shown in relation to US slavery. | American slavery continued much longer. Combine that with the history of extreme racism in the US, and you have the answer. SA and Europe didn't have the same extreme racism as the US afaik.The United States only took 6% of slaves that were imported from Africa. However, they had much more than 6% of the total slaves i... |
How realistic is the shot and the recovery from the bullet "into the lung" in the movie Focus (2015)? | I'm just going by the plot synposis on IMDB since I haven't seen the movie. > Nicky then gets shot in the chest by Owens, which horrifies Garriga and causes him to leave. Nicky appears to bleed out as Jess cries and tells him she loves him. It looks like Nicky dies until Owens says he shot Nicky in the right spot to av... |
Why do dreams appear to happen moments before we wake up, with his waking up and terminating them at the most dramatic moment? | In regards to waking up with dreams reaching a climax. I have actually thought a lot about this, and I'm not sure exactly, but, your brain at literally all times is ahead of you. What you perceive as reality is only after it's been funneled through your unconscious mind. When you sleep you are in its world. It's realit... |
Re:The Last Man on Earth. What is the best way for them to repopulate? [Spoilers-ish] | There was an article I read a while back about the absolute minimum required for repopulation. I'll try and find it but I think it was around 16 with the majority being female |
Why you are not allowed to take pictures in museums, can flash photography damage paintings and other artefacts? | I once heard a security guard in the National Gallery of Art in DC talk about this. He said that photography was not allowed in a certain exhibit since the works of art were not owned by the gallery but only borrowed from other museums and/or private collectors who didn't consent the visitors being allowed to take phot... |
Who is a Republican and who is a Democrat? | i'm actually really interested in what people say. This could be good.There are 2 very major parties, Democratic and Republican. We call the Democratic party "the left" and the Republican party the right. There are also 3 second tier parties; Green, Libertarian, and Constitutionalist. Below the above 5 parties, there a... |
In cooking what does a pinch of salt actually do? | According to various Cooks Illustrated articles I've read, changing the ionic concentration of cooking liquids outside the cell membranes of the vegetable, starches and meats you are cooking influences the movement of liquid into and out of the cells, which changes the texture and taste properties of the foods as well ... |
What stops private entities from pursuing a weapon of mass destruction project? | > So we have a guy that uses his privately earned money to fund his own space project. He still has to get clearance from the US government before he can launch anything . > buy uranium from Iran and then threaten people with his nukes if they don't start playing by his definition of nice. It is HARD to buy fissile mat... |
Why don't illegal immigrants drive into the U.S. instead of hiring coyotes to smuggle them? | My understanding is it's all about having the right documentation. People from some countries can enter the US without a tourist visa - for instance, Canada. People from some other countries have to get a tourist visa before they can enter, so for your scenario to work they first need a visa. I believe Mexico is one of... |
Why is everything mouth related "mint" flavoured? | It's a strong flavour that masks the bitterness of the cleaning product, makes your mouth smell clean , and importantly, makes children not want to swallow them. |
What exactly is a secular jew? | Jews form both a religion and an ethnicity. Secular jews are simply jews that don't have the religious part but are still identified as part of the ethnicity. |
Why does my computer prompt me for a JAVA update at LEAST once a day? | Think of Java like a bucket that holds water. People are always trying to find ways to get water out of the bucket without tipping it over . Now imagine that all of your friends and family use the same type of bucket. When someone finds a way to get water out of the bucket without anyone noticing it's bad. This water c... |
Is sleeping in a fetal position (curled-up back) as bad for your posture as slouching for 8 hrs a day? | My girlfriend is gone for the summer, I honestly have not left our bed for the last 3 weeks, gone so far to even pee in a bottle, and put the microwave and mini fridge on the nightstand. It's amazing.im no scientist, but it seemed clear to me that the problem with slouching is that gravity is weighing down on youI inst... |
What are the benefits of a smaller processor nm? like from 32nm to 14nm to 10nm? | The nm number is a measure of how small they can make the components on the chip. Smaller numbers mean that the transistors and other components are smaller. This in turn means that more can be packed into a given area, or making a chip with a given number of transistors will be smaller. This is one of the main benefit... |
how do we know the laws of physics are constant through out the observable universe? | Two points. 1) We can observe some of the physics in other galaxies. Mostly in the way they move and things of that nature. 2) Occam's Razor. When solving a problem, it is best to start with the simplest solutions and work your way to more complicated solutions. It does't mean that simple is alway right, it just means ... |
Why does it take so long before we get pictures from space? | From NASA: > The short answer to that question is: Pluto is far away -- very far away, more than 30 times Earth's distance from the Sun -- so New Horizons' radio signal is weak. Weak signal means low data rates: at the moment, New Horizons can transmit at most 1 kilobit per second. Even at these low data rates, only th... |
How could disappear over 4 trilion USD during the financial crisis from 2007? | Don't think of it necessarily is money lost but wealth lost. For example, if a company has a share price of $50 and is valued at $1B and the share price falls to $25 $500 million was just erased from that company's evaluation and so is worth that much less. If you go to the grocery store and buy milk for $3 a gallon an... |
What would actually happen to our body if we were to step out into space without a space suit and why? | The lack of pressure would suck, and make you miserable, but the biggest effect it would have would be to start boiling the fluids in your body. Also, it would be almost impossible to hold your breath and if you managed, the expansion of air in your lungs would start doing damage to your insides regardless, so you'd be... |
What actually happens to the body during chemo and radiation treatments? | Radiation if used properly can limit the side effect, but basically it targets the tumor with a concentrated amount of radiation that is toxic to the cells and kills them. Chemotherapy is the scorched earth of cancer treatments. It's one of the most effective, but it is brutal. Chemotherapy is basically using chemical ... |
Why do PC's have to download games while Consoles do not? | Older PC games could run from the CD or Floppy just like a console, but since PC hard drive storage exploded , it became a lot more efficient to copy the game to the computer, then run it off the hard drive. Consoles came standard with hard drives this generation and we are starting to see the ability to install games ... |
The slow horses in horse races | Horses sometimes have bad days. And unlikely humans, they don't really care who wins, and can't tell their trainer their are feeling off. Also, the like to run the races with a full field. If they are short, they'll scrape a few more out of the bottom of the barrel. |
- Why do pulley systems work? | Okay, so a pulley is basically a kind of lever. If that answers your question, you can not read below! Now how do levers work? Think about this. By putting a small weight on a long end of the arm, you're adding x amount of energy in the system - by moving a small amount of mass a large distance Now, that has to balance... |
How do lifelong politicians, (for example Dianne Feinstein, John Kerry, John McCain, etc) have net worths of tens or hundreds of millions of dollars? | How much do lobbyists contribute directly to politician's wealth, or is it mainly donated to organizations/businesses that the politicians then profit from?", 'John Kerry was born with a silver spoon in his mouth, and married a ketchup heiressKerry and McCain both married very wealthy women. |
How much (aesthetically) will a child from one sperm vary from another? | Think about a couple who have more than one kid. The differences can be seen in those two children . I can't think of any other way one would be able to tell, other than how two children from the same parents would differ.Exactly as different as two siblings can look from each other. The other you would still have the ... |
Why do contractions in writing exist and why do they stop at two words? | 1st question: Because people are lazy and like to shorten common things. You wouldn't've asked your second question if you grew up where I grew up though.Contractions were designed in order to more accurately reflect common speech in writing. Authors like to do try to write in such a way that accents and dialects come ... |
why all major objects in our solar system orbit in the same direction? | I'm no astro physicist, so I hope I am right on this. The solar system has had over 4billion years to turn gas,dust and rock into a set of major planetary objects. Over that grand timescale everything would have it's own orbit but the larger a planet became the more influence it had in corralling other objects into con... |
when I look at the sun or another bright light, my eyes hurt. What exactly am I feeling that causes this pain? | In the same way that too much pressure hurts when you're crushing delicate tissues and too much sound hurts when you're potentially damaging your eardrum, your eyes hurt for the exact same reason; your body telling you that it's not a good idea. |
Why do they air the same TV show repeats when the show ran for years and has tons of episodes? | Another thing that may come about is how many hours a show will air on syndication per day/week, and how much the network is willing to overlap these episodes . This has especially been prevalent with my parents' choice in crime dramas |
In Nascar or other car races, why doesn't everyone go the same max speed and finish in the same position that they started in? | Drag. When you are directly behind another car, the wind isn't hitting the front of your car as hard as the car in front of you. Your engine doesn't have to work as hard, and because of this you can race up behind a car and perhaps overtake them, But then you have to deal with the drag yourself. |
How does a bar of soap reduce germs, when germs are rubbed directly on it? | The soap itself isn't reducing germs. Without getting into the details of how, soap aids in removing things from your skin when you are washing your hands. It's the mechanical action of washing your hands under the running water that actually gets rid of whatever gunk is on your hands. Also, people who don't properly w... |
Why is it magically ok to blatantly steal someone elses song and make money from it, just by slapping the "cover" label on it? | Believe it or not, there was a time when song writing, singing and playing an instrument were all separate trades. If a song writer penned a good song everyone would add it to their repertoire. Go watch some old Elvis movies. He never wrote his own songs, and he never played an instrument although he sometimes used a g... |
Is there a reason why flight data is stored on a black box instead of being transmitted to a land based storage? | There's really very little need to. It would be very expensive. See, you have to buy a black box once per airplane. You'd have to buy the bandwidth for each and every flight. That's 87,000 flights per day in the US alone. The black boxes are very rugged, and are nearly always recovered. |
Why are cars maximum speeds higher than the actual speed limit? | Because speed limits change. In the US they can vary wildly from state to state, and in some places like segments of Germany's famous autobahn they don't exist. There are also times where you may need to speed, such as in an emergency. |
When your sick everyone tells you to drink lots of water, how effective is increased water consumption when your sick? | It helps you get the snot out. There is lots of water in snot too so you need to replace it as it comes out. Also if you have any inflamation water help reduce it by lubricating your innards essentially as well as moving the snot the inflamed areas can heal. They can't heal if there is dirty bactirea laced snot on them... |
Where does the water in rivers come from? | > How do rivers stay so full all the time? Many don't. But those that do are fed by natural springs, rainfall in what is known as the drainage basin feeding it, and snow melt. > And if it all flows into the ocean, how come the oceans haven't become fresh water after millions of years? Salt and other minerals are carrie... |
Why is it when I'm upside down, the blood is "rushing to my head", but when I'm standing it's not "rushing to my feet"? | Once in a while you'll find a question on here that you didn't even realize you needed to know the answer to. Today was that day. Good question brochacho! |
Why are Republicans stereotyped as racist when Lincoln (who emancipated the slaves) was Republican, and Democrats perpetuated and enforced Jim Crow era laws? | Basically, because neither party is anything like what they were 50 years ago, or 100 years ago. The Democrats of today have many differing positions and beliefs than the Democrats of just a few decades ago, and the same goes for the Republican party. The reason that the Republicans are more often stereotyped as racist... |
How chemicals such as those used by exterminators can be classified as 'safe for humans' if they aren't tested on humans? | It would be unethical to test chemicals on humans for the purpose of determining if they're harmful. What if you accidentally make something highly poisonous and make a bunch of people sick? Also, who would volunteer to get potentially toxic substances tested on them? So instead we test things on animals. Something tha... |
Why is it some people talk to their cellphone by holding it in front of their mouth and not by their ear? | The microphone is on the bottom, if you're not talking to someone on the other end you can get clearer sound by speaking directly into it, say if you're dictating notes. |
How are undocumented immigrants in the US able to do things like enroll in schools or get a driving license? | A lot of them do have SSNs, only those SSNs aren't technically theirs. They use them for the purpose of working and paying taxes. Many never get driver's licenses. |
Why do Latin translations also change names? | If you're like me, you struggled a bit in grade school with the English parts of speech -- subject, object, indirect object, etc. -- because in English, the part of speech is primarily determined by where the word falls in the sentence. For example: *I* [Subject] *see* [Verb] *dead people* [Direct Object] versus *Dead ... |
What is the Black Swan theory? Why is it important? | The phrase 'black swan' was once used to describe something impossible - much like the phrase 'when pigs fly'. Then black swans were discovered in .Australia I think. So the idea is that we should never assume that something is impossible. More specifically, an extremely low probability of something occurring does not ... |
How hard is it to assassinate the President of the United States? | Well it's been 36 years since someone got close, so I'm thinking it is pretty difficult. On the other hand, there is a limit to what even the finest security can do. So I'd say extremely difficult but manageable with great planning, intelligence and commitment. Keep in mind, the commitment portion is accepting you won'... |
The Great Depression and how it happened. | There is debate and different economists have different perspectives on the matter. Keynesian economists say that the Depression was caused by underconsumption, i.e.: people weren't spending money. As prices started going down, and deflation started to set in, it was profitable to simply hold money, so people stayed cl... |
Why can humans control their body but not their mind | That's a strange way of looking at it. Your body, even your muscles, are constantly doing things you have no control over. Your heart beats, your guts churn your food, your internal sphincters pass fluids around, your hair stands on end. This is all done by muscles you can't control. So you only have partial control of... |
How do pharmacists prevent people from wrongfully taking other people's prescriptions when all you need is a name and a birthday to pick one up? | Here in east Europe, they don't. My mom has bought meds with my prescription numerous times. Thus, faking receipts here is extremely easy. Faked name, fake address, etc. No one cares really, and the receipts get destroyed after a month anyway. |
Why do LED lights look jittery or like they're strobing when you look at them quickly? | Ooo something I can actually help with. I'm currently working for a company investigation the health risks to this strobing and trying to develop better LED lighting for the world! But seriously, most LED lights are flickering, especially ones that dim. It's all due to the conversion from AC electricity to the DC requi... |
(or more like I'm 13) Why would it be so difficult to break America's two-party system? | [This playlist] explains why our system doesn't allow third parties very well, and proposes some alternatives. TL;DW: The way we vote causes a “spoiler effect”, where it makes more sense to vote for whichever of the two biggest parties you hate least than for the party you like most, because the party you like most won... |
why if skin cells constantly shed do tattoos not disappear. | Tattoo ink is below the skin that sheds. That's why it needs a needle, and a permanent marker won't work.Only the epidermal of skin sheds continuously. Tattoo guns use a needle to inject the ink below into the dermal layer, making it much slower to fade awaySmarter Every Day has 2 very good videos on this Getting Tatto... |
If the pressure at the sea floor is 3 1/2 tons per square inch, why is the Titanic not crushed flat? | The Titanic isn't a pressurized system like a submarine or a human body. There's just as much water *pressure* inside of it as outside.The first half of the titanic went down fast enough that the air did not escape and it indeed imploded. The second half went down much slower and actually traveled somewhere around 3/4 ... |
Why is asking how much people make and their salary considered rude and bad? I don't get why asking how much they make is considered a bad thing. | There are two reasons - external and internal. Internally, people don't want to be judged based on their income. Externally, many employers don't want employees discussing salary so that they can't find out that the kid with no experience just hired is making more than the 10 year vet who practically runs the departmen... |
Why are people in ebola-stricken nations so against accepting help from ebola workers/ relief efforts? | A lot of the countries affected by the outbreak have spent literally decades in some kind of civil war or iron fisted dictatorships. The common people's level of trust of any message from the government is nearly non existant. [Source] |
Why do judges sentence something like three life sentences without parole instead of just one without parole? | To expand upon this a bit: when people get life sentences, they can be given consecutively or concurrently . This gives judges and parole boards more leeway in adjusting sentences. If served concurrently, then there's more of a chance that a person will be able to get out of prison eventually, because they will come up... |
why do apps require full permissions like making phone calls or reading sms etc? | It is either laziness or maliciousness - not bothering to limit permissions to what the app really needs, or gathering data to sell to data companies, or setting themselves up to profit by making calls or SMSes to premium numbers. It may be making the app more profitable to sell to a malicious party later. Sometimes it... |
From a scientific view, what would happen if the Earth split in half? | If you were to take a giant knife and literally slice it in half, it would just stick back together because of gravity. In the long run, not much would change. It might have an effect on the spin of the outer core though, which could affect Earth's magnetic field . Short term however, there would be massive earthquakes... |
Exactly how does an MRI work? | I heard a quote once that MRI's provide medical info from heaven using Physics from hell. Basically it all comes down to the hydrogen nucleus and how it behaves in a magnetic field. The magnets in the MRI are able to spin up the hydrogen protons which adds energy to them. These protons then relax releasing the energy t... |
How does Anonymous actually "takedown" a twitter account? | I asked a similar question on ELI5, but it got taken down by mods because it was considered too sensitive to recent events ? But I wanted to know how Twitter itself isn't being held responsible for these accounts and not being able to track where they're being sent from, etc. |
Why does left or right handedness just affect precision and not strength? | It does affect strength, usually because you use that hand/arm/leg more often. You're more likely to exercise the muscles in your dominant side when picking things up, kicking/throwing a ball etc Best example would be to arm wrestle. If you're both right-handed then its an even fight regardless of which hands you use. ... |
I spilled hot coffee on my hand. Why does this burn hurt more/longer than a brief oven-temperature burn? | Temperature isn't what burns us, heat is. Water takes in a lot more heat to get hotter by one degree than most materials; and the same goes for when it is releasing heat. So water at 100C when touching your skin at36 will release much more heat than some metal at 100C. That's the part of the tea that is hurting you. St... |
Can anyone explain this math problem to me? | This is known as the missing dollar riddle. There is no missing dollar because you aren't supposed to add $27 with the $2. The room cost $25 and the bell hop kept $2. This is equal to the $27 that the three guys paid. |
Why do I feel as if I get tired more quickly when running outside than I do when running on a treadmill? | 1. When you run outside, there is wind resistance. It's minor, but it does some effect.2. Unless you're running on a race track, the pavement outside isn't always even, with subtle slopes, bumps and potholes.3. Treadmills usually have springs for shock absorption, make the running easier on your legs, especially the kn... |
Why don't they just make built in solar panels for phones so they have better battery life? | I have a solar panel for charging phones and such while camping. It's the size a laptop and take 2 hours in good light to charge the phone. A panel on the back of the phone would probably need at least 6 hours- with the phone turned off- to charge it. Which is not ideal. Normally my phone sees about six hours in direct... |
Why shouldn't you reheat food more than once? | Its more of a rule for the culinary industry then home use. Not to say it doesn't apply. But people hear it and assume its a forever no. The same goes with freezing something more than once. If you double cook food, its usually dry and nasty tasting. |
How lazy people can ask easy, totally goog-able questions on this subreddit and actually get answers when it's original intention was to explain complicated things to the average person? | I'd rather people ask the question here than on Google and hope they get a credible source. At least we're fairly level-headed here and aren't trying to steer people in the wrong direction. So many questions in this subreddit come from flawed premises, and for the most part, it's discussed in a nice adult fashion that ... |
What are the practical uses of logarithms in real life ? | As one example, logs are used in a lot of finance, data, and statistical analysis which then translate to real world stuff. Let's say you're walking down the street to get a coke at 7/11. The street lights may be placed and time based off this analysis. The 7/11 may have been placed in that spot due to it, the can of c... |
What exactly is radiation/ radiation poisoning and why aren't there ways to "flush" it out of your system? | It depends on the method that you've been irradiated by. For example, the standard treatment in Europe for Tritium poisoning is a skinful of beer. This is because the radioactive tritium gets into your body in water and thus in order to get rid of it, you want to piss out as much water as possible, which is why alcohol... |
Why is it that Asian Countries tend to score much higher than the West in terms of Education, yet it seems the most innovation in almost any scientific/technological field comes from the West? | have you looked at alot of the papers that are coming out of /r/science and /r/technology? most of the researcher names are Patel's, Zhang's, Wu's, Yang's, Nokimura's, Takahashi's. what does the US have that Asian countries don't? The H1-B visa. _URL_0_ |
How do mathematics explain such complicated concepts in science? | Mathematicians and scientists recognize **functions** that have certain features. For example, they know that sines and cosines are oscillatory functions and that they almost always can be used to account for wave behaviors. Another example is recognizing that throwing things in the air results in a path that's a parab... |
How does National Geographic gain the trust of drug dealers for interviews on documentaries? | The same way they photograph polar bears. All National Geographic photographers are badasses. It is a harsh work environment, and all the people who aren't superhumanly tough get raped to death by ostriches or eaten by sharks on their first assignment. These are the sort of people who crawl unarmed over rocks in Afghan... |
Why does sweat smell bad? | Sweat is mostly a mixture of salt and water. Now if you soak a sock in this mixture, there will probably be a smell, but nothing like the smell you associate with sweat. The smell comes from the waste produced by the bacteria that break down you sweat. So what you're really smelling is bacteria shit. |
Why do smoke detectors run on batteries instead of mains power? | Just had a house built last year, all of my smoke detectors receive mainline power and have battery back up. They're not connected to a security system, but are connected to each other. |
If our blood travels through vessels in our bodies, how come we bleed no matter where the cut is located? | Your blood vessels are pretty much everywhere. Since all of your cells, everywhere, need access to the bloodstream, the smallest of your blood vessels snake into pretty much every nook and cranny of your body. It's hard to cut past the skin without nicking a few. |
How were colors standardized before we started thinking of them as RGB values? Like how did they keep the red on the American flag consistent? | We don't specify physical colors in RGB even today; RGB is strictly for electronic displays. Furthermore, RGB isn't even one standard - it's several , each of which results in a different color for the same RGB values - and each one only covers a fraction of the colors we can see. We specify standardized colors in Lab,... |
Why don't ovens have built in thermometers? | You're asking about a real time temperature display. No idea why this isn't a feature. It does regulate itself when it reaches the desired set temperature, it doesn't display it though.They do. How do you think they know what temperature they are. Also some have ports for thermometer probes you can put into your food |
Why can you sometimes feel well rested after minimal sleep ( > 4 hours) yet sometimes will sleep 8 hours and wake up exhausted? | It's because of your internal clock. I am so used to going to bed at 1-2 AM and waking up at 6 AM for high school that any more sleep causes me to feel extremely tired. So, making any changes to your sleep schedule should be gradual to ensure minimal discomfort. It's the same reason why people who get 8 hours of sleep ... |
Why do tattoo's stay on your skin for your whole life? | Well, first, a tattoo isn't ON your skin, it's on the middle layer of your skin which is relatively stable. Unlike the top layer of your skin this layer isn't replaced over time or at least not as often. However, Your immune system basically treats a tattoo like an infection. The ink is a foreign body that your immune ... |
Why people still maintain that Obama is a Muslim, terrorist, not born in America, etc. | Some of them are big fat racists. There's the assumption that because he has roots in Kenya he must be a Muslim, and who would want to have one of *those people* running this country? Others really just don't like him politically and want to find a way to get rid of him or, at the very least, delegitimize him. They say... |
How is the list of names for the credits in movies compiled? Is it someone's dedicated job? | Sometimes it *is* someone's dedicated job, yes. There are even companies that specialize in it. The one I see most often is Scarlet Letters. Sometimes one company will do the main titles and another will do the end titles. If you want to find out who they are for a given project, it's often easy, because they're listed... |
Is our perception of time relative to our mass? Eg: an ants lifetime seems to them, the same amount of time as what our lifetime seems to us? | I see two ways of looking at this, I will explain both. First perception- If I lock someone in a room for there entire life and give them fish to eat only and don't tell them there is other food they will like fish. If I give them fish and have pictures of other food then they will desire that food and not like fish so... |
The Federal Reserve's Dual Mandate | This basically means that the fed has the job of keeping employment high *as well as* keeping inflation low . Its referred to as a dual mandate because of having responsibilty over the two aspects. Other central banks might have one job or the other. |
Why does light only penetrate 1000 meters of the ocean and not the entire ocean? | Light runs into stuff and bounces off stuff. At some point there's no more light to continue. Same thing happens in space too. Space isn't completely empty, and over a large enough distance, the light can be obscured. |
The Walton family is worth $150 billion. Why can't Walmart hire more employees at their stores? | They can. They don't want to. I have 50 bucks on me. I *could* give them away, but I don't want to. |
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