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Would it ever be possible to create a camera that is a higher resolution than our eyes? And would our brains be able to perceive the image? | Ever had to zoom in on a photo to see something you couldn't see before it was zoomed? Our brains can't perceive the image, even though the picture clearly contains it and even displays it. So..no, our brains can't perceive a greater resolution than they can perceive. But we can create tools that adjust the additional ... |
Why are there so many advertisements to the general public for drugs that can only be prescribed by a doctor? | Most countries don't allow this, presumably with the logic that it isn't patients that should decide what drugs they get, but the doctor. Advertising drugs to consumers is only legal in the USA and New Zealand. They do it because they are allowed to, and they want to encourage consumers to ask doctors to prescribe them... |
Why aren't women required to sign up for Selective Service in the US? | Because when the Selective Service framework was actually used, women were seen as weak. Many people don't think there should be a draft at *all*, so they would be very opposed to any change in the Selective Service Act except eliminating it. e: To be clear for anyone who doesn't know, the Selective Service is America'... |
how can we know what dinosaurs sounded like? | It's mostly speculation based on inferences from modern relatives like birds and crocodiles. It's a subject of ongoing research when specimens are found with discernible head and neck structures. The book [My Beloved Brontosaurus by Brian Switek] discusses the subject briefly in chapter 8. The book also covers topics l... |
How do GPS apps such as Maps or Waze know the new formation of roads after construction? | It first important to understand how Google Maps gets all if it's data. Some of it's data is pre-programmed into their systems. This is usually used as initial data, especially for testing. Google provides many more features, however. They also show traffic and other information for your daily traveler. A few years bac... |
- Why is conditioner important for hair and is it a necessity? | When you use shampoo, you are stripping your hair of dirt, but also stripping away your natural oils. Hair is not a living thing, just at the roots, so longer hair after continued stripping will begin splitting and breaking due to dryness. Most shampoos contain sulfates that are particularly harsh. It's what gets you t... |
What would it take for telekinesis to be real? | To move an object you have to apply a force to it. That usually requires touching it. If you want to apply a force from a distance you have a couple of options. Electromagnetic fields can repel magnetic objects. But you cant just spontaneously make a magentic field around an object to precisely control its movement. Yo... |
Why is mint the optimal flavor toothpaste and mouthwash? | We strongly associate the sensation of mint with coolness & freshness. Naturally, toothpaste/mouthwash companies want you to feel fresh when you use their product, as that will make you trust it more - so they flavour it with mint. Mint contains a compound that is sort of the opposite of capsaicin - it tricks your body... |
How, despite having historically little linguistic, geographic, or political barriers, has Germany become a STEM powerhouse while Austria has become one of culture and fine arts? | Your assumptions don't really hold up. Austria has a very modern and capable industry and Germany has a rich cultural history which continues to this day, especially in literature, but also in music, film etc |
how do emergency rafts/life preservers inflate so fast? | They use compressed air under high pressure. Somewhere on the raft or vest is a cylinder of air. When you need to use one in an emergency, generally you pull a cord or lever that releases all of the high pressure compressed air into the raft/life vest, etc. |
Why is humour such a large part of culture today? | Humour has always been a part of culture. Every culture has their puns and their drinking songs full of sex jokes and their nasty little cartoon doodles on walls. People *like* to laugh. You say you can’t imagine George Washington laughing. I promise you, he did. The late 18th to early 19th century were a really busy t... |
Question about importance of circular movements, circles in mathematical representation. | We don't need to use circles to have a specific coordinate system. Sometimes nonconventional systems produce cleaner results. [Here] is a link to elliptic cylindrical coordinates. There are many many different types of orthogonal coordinate systems and some that are not orthogonal. Have you solved any PDEs yet as an EE... |
Why are train tracks built on rocks? | the rocks, called ballast, is used to keep the railway ties in place and to allow for water drainage and to prevent vegetation from growing up through the tracks, possibly disturbing the position of the railsRocks are strong, cheap, ubiquitous, and do not absorb water. They are a good choice of material for transferrin... |
Why are certain meats so universally popular as ingredients? | Pork, chicken, lamb and beef are almost universally available because these animals are easily domesticated and productive animals. They are comfortable around humans, not particularly aggressive and can grow very rapidly. Due to the long history of breeding these animals, there is also a huge variety of them available... |
Space is a vacuum where no sound can be heard, but there is sound inside a space shuttle. So can astronauts hear the outside engines in spaces ? | It depends, they can hear the engines from their own shuttle as the vibrations travel through the hull, then to the air inside the shuttle They would not hear another ship's engines, as there is nothing to take the vibrations from the other ship to theirs", 'Sound is vibration. Engines vibrate the hull. The hull vibrat... |
How is a cease-fire enforced during a war, what is stopping rebels from attacking? | When both sides agree to a ceasefire, it is the responsibility of both parties to exert control over their respective forces to enforce it. The rebels on the other hand have a vested interest to follow the terms of the ceasefire in order to maintain their legitimacy in the eyes of the world. Assuming this is related to... |
Why does our own voice sound so bad ourselves? | We don't hear it very often. When you speak, you hear your voice, but that's not because it's going into your ears from the outside. It's going from your throat right up into your inner ear. So you hear your voice differently than everyone else does. When you hear a recording of your voice, it doesn't sound the same be... |
What is the concept of "Most Favorable Nation" in the international trade market? | Most favored nation is an approach to tarrifs where you promise low tarrifs not just at the time of the deal, but also promise to lower tariffs again if you make a better deal with some other country. It's sort of like a promise to match a competitors coupon. So imagine India puts a 20% tariff on rice from China and a ... |
Why do our hiccups go away when we get scared? | I think that's a myth. Or maybe a coincidence. When you get spooked, you get your adrenaline pumping and that might alter muscle functions. I've found that just sitting and breathing slowly makes them go away. I suppose I could just look at my bank statement and never have hiccups again. |
What is intertextual comparison? | > What does it mean? It means the person is either a pretentious twit trying to look smart, or they're trying to make lemonade out of the fact that they dropped a quarter-mil on a Literature degree :) In all seriousness, intertextuality is simply a property of a work that means that its own meaning is modified by its r... |
In a video, a clay man being crushed by a hydraulic press causes the clay to shoot straight up towards the press itself. Why does the clay squeeze UP instead of OUT? | The clay that has reached the edge of the cylinder is no longer being smashed into a thinner, wider circle. It keeps its same diameter at that point, but is pushed up and out of the way by the clay behind it that is still being pressed. |
Why is there so much fake-rayban-sunglasses spam on facebook? | YEAH! Why is it sunglasses? Why is it all the time?!?! I wonder if it is some kind of secret code or something. |
The differences between the following economic schools of thought: New Keynesian (not classical Keynesian), Chicago, Austrian. | Disclaimer - All of these economic theories are pretty complex and thousands of economists have either added their own little take on them or offered their own interpretation. I'm just trying to offer the simplest possible explanation. Austrian School - Austrian School theory is largely based on the works of Austrian e... |
Why are the bottoms of colored people's feet white | The original Homo sapiens came out of Africa and was, fairly certainly, "black". Not being black is an evolutionary advantage in areas of the world with less sun light and not eating lots of meat. Vitamin D. But if you look at the soles of anyone's feet and the palms of their hands, it's a different kind of skin. There... |
Why is it that the only part of my body that sweats while I fap is my ass? | Think God I'm not the only one. I think it might have something to do w/ clenching buttcheeks a little harder than normal |
What caused segregated recycling to disappear? | It's easier and more cost efficient to do the sorting at the recycling center. You only need one collection vehicle with one single space, rather than devote space to each type. Also, people who recycle are notoriously bad at separating things.This might be a USA thing? In the EU segregated recycling is still very much... |
What is a more accurate representation of oneself, a mirror or an image, and why? | The answer is actually very relative based on preference. An image taken with a camera would allow for more angles and can show places that are not viewable with a mirror. However, a clean mirror will always have a higher resolution image, but can only show what you are able to contort yourself to show. |
Why do our faces pucker when we eat something sour? | It reduces surface area of sour substance on the receptors on your tongue, as well as concentrates saliva around the sour substance, diluting it. Both of these responses "protect" your tongue from sour substances.I don't think there is a solid, conclusive answer but for some people it's a response to the flood of stimu... |
Why new vehicles have that "new car smell" and why they can't just keep smelling that way | That smell is actually the smell of the petroleum based solvents used to make the plastic and vinyl parts of the car evaporating. You wouldn't want it to keep smelling that way because those fumes are actually toxic. |
How did hand-to-hand combat in large scale infantry battles work? | Depends, commanders would avoid the brawl since their forces could be over run and then their ranged support was useless. Here's the best way to think of it, go watch videos of rioters vs police, that, that's hand to hand combat in a nutshell. One side is more professional and has a formation while the other would just... |
How are internet speeds throttled by ISPs? | Internet traffic comes in packets of data of different sizes. Your ISP have a router that have what is called a leaky token bucket to throttle your data. If no traffic is coming through there is a "bucket" with the value zero. When a packet comes through the length of the packet is added to the bucket and the packet is... |
How much faster would scientific discovery go if all human bodies would be go the state for research after death instead of a grave? | I don't think there's much medicinal information we have to gain anymore from dead bodies, at least compared to living bodies. Because, you know, diseases and psychology. So really, I doubt all bodies going to research would make much of a difference, if any at all. |
Dollar is up, Gold is down but goods are still getting more expensive? | When we say the dollar is stronger, that means in comparison to other currencies like the yen and the euro, not in comparison to consumer items. To see how the dollar has changed compared to consumer items, you should look at the inflation rate, which is about 2% right now. That means an item that cost $100 last year w... |
Why are horizontal and vertical speeds independent of each other? | Think of it like this: Say we have two balls, A and B. For every second that goes by, ball A moves one inch down, and two inches to the left. Also for every second that goes by, ball B moves down once inch only. Now say balls A and B both start 5 inches off the ground. Because they each move down one inch per second , ... |
If you take a multivitamin when you've already had your daily recommended amount of one or more vitamins or minerals, does your body get rid of the excess or can this hurt you? | If you just take one there shouldn't be a problem, some vitamins and especially minerals can be a problem in very high dosages. The quantity in those pills is the RDA your body can handle many times more before it becomes a problem. Of course, if you suffer from certain medical conditions this may affect how your body ... |
Why does diesel car feel faster when accelerating than regular gas car when in reality their acceleration times are similar? | If their acceleration is the same it should feel the same. Likely what you are percieving is that diesels have more low end torque, while gasoline engines achieve more high end torque. So the diesel may accelerate faster at first, then reduce its rate of acceleration relative to a gasoline engineVery simply, Diesels us... |
That feeling you get when you're accelerating uphill and you suddenly go downhill. | Your body is still moving uphill, so there is a law between when the roller coaster starts to drop, and for a split second you're still moving up and the coaster is going down so you separate, then gravity catches up and you keep on chugging. It's the same thing that happens when you jump in an elevator right when it s... |
how do people "clean up" radiation and nuclear waste? | It's a matter of relocating it. Getting it out from where it is. For water, we use ion exchangers, filters, and distilling processes for separating radioactive materials from the water. For solids with contamination, you can wash it off, but now you have radioactive water runoff. It's usually a matter of relocating it. |
Why do stress pimples form? | Stress doesn't cause acne or pimples if you already have them. An oily substance called Sebium clogs your hair follicles causing acne, when under stress more Sebium is produced which leads to more acne", 'It would not be just from the stress. Often when someone is upset, without realizing it they might rub their chin o... |
How millionaires and billionaires keep their cash that isn't invested. Isn't it dangerous to store all your cash over $250,000 in one bank? | Most millionaires and billionaires keep the majority of their wealth in investments, not cash. It's how they get richer without doing necessarily as much work. What liquid cash they have, they likely keep in multiple banks, not just one. |
Did citizens of the USSR automatically become citizens of Russia when it switched over? | Are you asking about the USSR or The Russian [SFSR]? The USSR was a federation of countries and 'russia' was one. When the USSR dissolved people were still citizens of whatever country they lived in. |
Does it really matter if I get a 30 day air filter or a 90 day filter for my house? Why? | I am assuming that you are talking about the difference between fiberglass filters and pleated filters. The main purpose of an air filter is to remove stuff from the stream of air. A majority of them do it by the physical process of capturing the particle as the air passes through much like a colander catches pasta. Ai... |
What type of data is obtained from underground nuclear tests? | The main purpose of a test is find out whether the device can be safely armed and successfully detonated. The tests are performed underground for environmental and safety purposes, but can make taking precise measurements difficult. If buried at an adequate depth, yields can be roughly estimated based on the size of th... |
How is the URL randomized in big website like Facebook and YouTube? | Random number/character generators aren't that tough. YouTube uses an 11-digit ID for their videos like this: [_URL_0_] 11 characters, using upper/lowercase letters and numbers, yields this many possible combinations: 52,036,560,683,837,093,888 YouTube hosts a damn large number of videos, but with that many possible co... |
Why do different parts of our body twitch at times? | An involuntary muscle twitch is caused when the neurons responsible for that muscle group depolarize. its usually harmless and goes away for most people. There are some diseases responsible for severe twitching, but its quite common. I had this happen a few times with my nose or eyelid. Magnesium is good for stabilizin... |
How do water powered hose reels work without electricity? | There is energy in water pressure too, in fact electricity is often generated from the movement of water. Just like the pressure of flowing water can turn the generators in a water dam, it can be used to turn the reel back in. If that was clear to you and you rather wanted more detailed explanations of the exact mechan... |
Why in 36 years' time (1865-1901) were 3 U.S. Presidents assassinated? | Small data set, mostly. There have only been 4 US presidents assassinated. That's just not enough data to distinguish between trend and coincidence. There have only been 6 presidents names James. There were 4 among the first 15, then we go over 100 years and only have one. Unsolved mystery? Conspiracy against Jimmies? ... |
Why do my eyes hurt after I shower a while? | Bot removed my previous comment because it was too short. Albeit, it was kind of a smart ass answer, so I'll let it go. But it probably has to do with your eye's ph level or something. Tears have a lot of specific traits that make your eyes feel comfortable. So whether you are getting water in them or a little bit of s... |
How can our eyes switch focus between a mirror's surface and the shown reflection as if they are at different depths? | The reflection behaves as what is called a virtual image. You aren't focusing on the surface of the mirror, you are focusing on the components of the image as though you were looking through a window at the objects themselves. |
Why does a phone "selfie" not look like the image of yourself you see in a mirror? | It's wide-angle lens distortion. Human faces look goofy with wide-angle, but without it selfies would be impossible in the first place. All smartphones have wide angle lenses. [Here's an example].Mirrors flip your image so that the left and right are reversed . Humans rarely have perfectly symmetrical faces, and you're... |
Where do virtual particles come from? | If virtual particles are to be considered to exist at all then they would be sourced from the underlying spacetime manifold which is our universe. But virtual particles are limited by the uncertainty principle, an asserted fundamental limit to the precision at which certain pairs of physical properties of a particle ca... |
Why do domestic trailers have less material than international ones? Why not just use the international trailer for foreign and domestic audiences, especially when YouTube exists? | Trailers are often made to appeal to a specific audience. For the most part, trailers for western countries will all be the same, but you may see some difference in trailers for Japan and China, as those audience have different tastes for films and content then western audiences, and if the film contains asian actors, ... |
How do dogs know their food is their food? I mean their dog food in their bowls? It looks and smells nothing like real food | Well, what is real food? Obviously a dog isn't smart enough to rationalize concepts like spices. Their sense of smell and criteria for food is very basic. If it smells like meat or anything they've ever been fed or ate and came to realize it was food, they will eat it. That's also why dogs eat poop and garbage. To them... |
Why can some people whistle while others can't? | I can whistle, but I can only do it while sucking in air I guess it's just a skill you need to learn. You need to find the exact sweet spot to make that whistling noise. I think the hardest part is finding how to shape your mouth in order to whistle. After you know, doing it again becomes a lot easier. |
how can the human body still have organs that are useless after so many years of evolution? | Evolution is not meant to be perfect, it is meant to make you survive until you reproduce. If an organ is useless, but not hurting enough humans to threaten the species, there is no point in removing it.Which organs do you mean, specifically? Evolution will only get rid of an organ if it has a negative effect, so if it... |
Why do mammals and birds have a sense of maternal love and bonding yet reptiles don't? | It has to do with brains. Reptilian brains only have basic structures that would make up a human's brain stem. All of their brain structures are centered around survival as well as some of the more base actions and emotions like aggression, fight or flight, etc. Reptiles are literally not hardwired to have the type of ... |
How does an electricity company know how much electricity you use? | The meter measures both voltage and current going into your building/home/whatever to calculate the amount of electricity you're using. Voltage remains the same, but the current flowing in does change when something is drawing electricity from the circuit. > and the amperage depends on the appliance Ah, but it does: yo... |
Why is "Boo" the go-to means of expressing discontent in a public setting? | From etymonline: expression meant to startle, early 15c., boh, "A combination of consonant and vowel especially fitted to produce a loud and startling sound" [OED, which compares Latin boare, Greek boaein "to cry aloud, roar, shout.; as an expression of disapproval, 1801 , 1816 ; hence, the verb meaning "shower someone... |
Why does yellow look "brighter" than red or blue? | [Eyes happen to be most sensitive for green and yellow] But why?!! [That curve closely matches the light from the Sun that reaches the ground.] But why do they match?! Because it is practical to sense the strongest light the best. [Actually our eyes have also night mode. Called scotopic vision. With WAY more sensitivit... |
What happens to stolen cell phones? | All phones have an IMEI number which can be used to cancel the phone quite literally, it can never access a network again as it gets flagged as stolen. The problem is not everyone keeps a note of their IMEI serial number so this rarely happens. Usually what happens once stolen is the thieves perform a basic factory res... |
How come when we see violence against humans we don't feel the same empathy if it were against an animal? | Because we process in kin with our ability to defend ourselves. Animals do not have the same abilities. This is the reason why we cringe when a child is slapped or someone assaults an elderly person.Because animals, most of the time did not do anything wrong to deserve getting threated bad and getting beaten, excluding... |
why inflation is necessary for economic growth. | So the basic idea of inflation is that money becomes worth less and less over time. So back in the 1970s, $2000 could buy you a new car. These days, that's not even a large downpayment. This means that people are motivated to actually use their money *now*, to invest or to purchase goods and services, since it'll be wo... |
The free courses that major universities offer, how can those help a person professionally? | There are classes that do not offer any form of certificate, it is just the class materials posted on line. For example MIT's open courseware. There are classes that offer a certificate of completion, but do not guarantee anything else, such as Coursera. These are generally actually graded and you can get feedback from... |
Why are people hating on FIFA about the upcoming world cup in Brazil? | [John Oliver has a nice video about it.]Its mostly Brazilians because the government is spending a fortune on the word cup yet the country has a terrible medical/ educational system', "In addition to complaints that the money would have been better spent on fixing problems Brazil had already, as of two weeks ago the ve... |
At what point did the U.S. government, the White House especially, stop being terrified of bad press or being seen negatively by the public at large? | Around the time they realized they could convince the population that the "bad press" is a lie or that they shouldn't care about it. There is no definitive date but, bad press was never the true problem, it was the publics reaction to the bad press that was the problem. I would say the tipping point was the internet be... |
Why does water vapor condense into clouds instead of diffusing? | Clouds are diffusing all the time , especially the first 12 seconds or so.) Warm moist air rises and cools off, and can no longer hold as much water vapour as it could before. The water vapour condenses into droplets, which we see as clouds. Over time, the droplets disperse into the surrounding cool, dry air and they b... |
Why can't I use Dish Washing Liquid to wash my face? | It may be gentle for your hands, but your face is a sensitive area.It may seem safe, but you'd be surprised as to what isn't safe to put on your face that is for most of your body. |
Wouldn't it would be a good idea to buy from the stock market now that its so cheap? | Well you have the right idea to buy cheap. The issue comes when the market is very unstable. Are you willing to risk buying stocks and instantly losing a large chunk of the investment? When you buy stocks you really need to know all the latest details and news about the company you are buying shares from. I just lost $... |
What is data mining and why is it considered to be un-ethical? | It's not considered unethical at all. Data mining is nothing more or less than extracting *information* from *data.* Data and information are two different things. Data are just uncorrelated facts. For example, I could tell you that the temperature outside where I am right now is 72°. That's a fact, a *datum* as they'r... |
Why does it feel so weird to step onto an out-of-order escalator? | Escalators are built to different standard dimensions than stairs, so they actually do feel different to walk up than most staircases.In addition to what the only comments have said, there is a psychological aspect as well. If you have used escalators often, your brain has become familiar with them and developed expect... |
What is the crust around your eyes when you sleep and what is its purpose? | It is just dead cells, blood cells & skin cells, some dust, even some boogers from the nasal section . The action of blinking 'washes this away' during the day, down your tear ducts, but at night your don't move your eyes much at all or blink so this secretion/excess builds up in the corner of your eyes. |
Why is "From 0-60" the standard measurement for a car's acceleration performance? | 60 mph is a typical freeway driving speed, so this is a good approximation of a car's ability to get on a road and get up to full speed. Obviously for racing it's not the most important figure.60mph is roughly 100km/h. A lot of cars, especially older models, have top speed just higher then this. Most drivers will not d... |
Why is 2,147,483,647 the highest 32-bit integer? Why so specific? | It's kinda like how 99 is *so specifically* the highest two-digit decimal number. Only, since it's a binary number converted into decimal, you can't see the pattern.Start with 2^ then divide by two cuz we allow negative numbers and then subtract an extra 1, because we allow 0', "In computers, you need to be able to uni... |
Why do they say it takes 7 half-lives of a drug to be out of your system when there's actually about 0.8 mg left after 7 half-lives from a 100 mg dose? | Half-lives are basically the time it takes for whatever drug you have to halve. If the half-life is 1 hour, for each hour that's passed, you'll have : 100mg, 50mg, 25mg, 12.5mg, 6.25mg, 3.12mg, 1.56mg, 0.8mg, 0.4mg and so on. If you take a 100mg drug at the 7th hour, you'll have 100.8mg. The next hour you'll have 54, 2... |
how do restaurants know how many portions of slow cooked food to prepare? | When I worked in restaurants, we had prep guides that compared the last week and last year sales of items. It gave us a rough estimate of what we needed. Sometimes it is too much, sometimes too little.I hate food waste too! They mostly guess based on the particular day of the week, weather.. as to how popular something... |
Why is there such a wide gap between the rich and poor and why does it continue to grow? | The easy answer to this is because the rate of return on capital investments is greater than the rate of growth. It's the central thesis of Thomas Piketty's *Capital in the Twenty-First Century*, and he does a great job of explaining how and why it occurs, and obviously the implications of it happening. It's a very goo... |
What causes a country to divide heavily into left wing vs right wing rather than being united somewhere down the middle? | The effect is magnified with low turnout activities like primaries, caucuses, and the like. The events tend only to be attended by those with a strong opinion. This causes candidates to seek the center of the goupd that's voting in the caucus, even though those folks are unlikely to appeal to moderates in the middle. C... |
What are tonsils, what do they do and why is okay for us to have them removed? | Basically the role of tonsils is mostly to be among the first lines of defense against pathogens. They identify compounds produced by pathogens and alert the immune system. It is ok to remove them when they get swollen because the alternative is to allow them to block the airway and potentially suffocate the person. Be... |
How does highlighter ink always stay "behind" regular ink? | It doesn't. It's just less dense, so it doesn't cover regular ink. If you have access to watercolor, you can see the same effect: if you use just a little water, and a lot of watercolor, you get a dark color that will cover up other colors. If you use a lot of water and not much watercolor, you will get a light color t... |
is there a reason why cable TV hasn't won out over satellite? | Why do you think that taking a cable and burying it underground is more futuristic than launching a satellite into space? I'm sitting here at my satellite internet and video provider, and wondering wtf youre talking about. |
Why hasn't Obama just appointed the Supreme Court Justice already? | He has. The Senate needs to confirm his appointment, Merrick Garland, in order for him to actually take the bench, though. The Senate refuses to hold hearings on his nomination, let alone bring it to a vote.Republicans in the Senate do not want to allow Obama to appoint another Justice. Being so close to an election th... |
How do you harvest energy from a fusion reactor? | There are several proposals for energy capture. The simplest is using a heat cycle to heat a fluid with fusion reactions. It has been proposed to use the neutrons generated by fusion to re-generate a spent fission fuel. In addition, direct energy conversion has been developed as a method to maintain a voltage using the... |
Why do a lot of people not like to talk about how much they make? | In addition to rhomboidus's reasons, if you make too much, it can make other people jealous or if word gets around it can attract people who want to mooch off of you. Or other unwanted attention. To elaborate on rhomboidus's answer, class and social situations are best left unmixed. If your friends are conscious of how... |
What exactly happens when you black out while drinking | Apparently you don't lose any memory, you just stop 'recording' memories in general after a certain point of drunkenness. |
Fingerprints: Why we have them | One word - friction, sole purpose of fingerprint is to help you grab stuff. Look at the time when you soak your hands in water, you get this wierd wrinkles on your skin, it serves the same purpose. EDIT: Double chcecked, and it seems that I may have been a little of the track. Recent studies proves that fingerprints se... |
What is the International Phonetic Alphabet for? | There are multiple respelling alphabets, but the IPA is the most common. As others mentioned, it gives the *exact* pronunciation of a word in a specific dialect. Think of how someone from midwestern USA would pronounce "garage" compared to a French person, or someone in London. All three are spelled the same, but prono... |
Why do we eventually get sick of eating the same thing if at one point it was the best thing we ever tasted? | It is unlikely you would get all nutrients from a single food item alone. This is your brain telling you that you should eat a wider variety of foods. |
What is it about the Belmont Stakes that makes it so hard to win when compared to the Derby and Preakness? | The Belmont Stakes is a longer race. Kentucky Derby is 1 1/4 miles, the Preakness is just a hair shorter at 1 3/16 miles. The Belmont Stakes is 1 1/2 miles. Horses that run well for 1.25 miles may not be the best at a race that is 1/4 mile longer. It doesn't seem like much, but it is a huge difference when dealing with... |
How can speed be relative but still have a maximum? (the speed of light) | To understand this, you have to mostly ignore your intuitions about how motion works. Relative to you, nothing can be moving faster than the speed of light. Wherever you are, and however fast you think you're moving, nothing you can ever observe will be going faster than the speed of light compared to you. It works out... |
Why were so many PoWs tortured during the Vietnam War compared to other wars? | From the very beginning of the war, North Vietnam’s stated position was that American prisoners captured in North Vietnam were “war criminals” who had committed crimes against the North Vietnamese people in the course of an illegal war of aggression and that therefore the American prisoners were not entitled to the pri... |
Why don't lawyers directly compete for business like other business types? | In big cases like this, transitioning from one law firm to another mid case is extremely difficult and isn't likely to save you very much money. Running a case as a law firm is kind of like writing a big group report. Your professor gives you a prompt and you start researching, interviewing experts, etc Half way throug... |
Why does reddit suppress free speech? | Free speech is for governments. Corporations and companies are totally allowed to restrict speech on their services as much as they want to. Reddit restricts speech that they feel would reflect poorly on them, or otherwise be disruptive.Because Reddit likes to keep a clean image in order to attract ad revenue, while tr... |
Is there any science in loving or hating marmite? | Marmite is a beer byproduct. Some people like beer and others don't. Some people think their beer should be a liquid, not a spread, and others are more flexible. Taste is very subjective. |
Please help me understand Time Travel Einstein's Theory | This is indeed something special relativity has a hard time portraying, and is only really understandable in general relativity. The simple answer is that it's about the decelleration and acceleration when you want to come back, the astronaut ages slower relative to the earth, and not the other way around, because he w... |
How are people still being arrested for prostitution related offenses? | That is a defense that you could try in court but I doubt it would work. Arresting someone only requires probable cause. Meaning a reasonable officer would believe that the woman is probably lying about the haircutsBecause there is a difference between "coming up with a lame explanation that makes your actions technica... |
If you fed a herbivore meat what would happen? | Certain herbivores have an organ called a 'rumen,\' which helps digest plants that we would have a hard time eating. However, these animals can still eat meat, and I bet you could find videos online of any herbivore eating meat . From an evolutionary standpoint, animals that are \'picky\' are at an disadvantage. The mo... |
Why do other cars' left/right blinkers seem to sync up with mine? | They don't. They are at different speeds. Because of this, at some point they will seem to be the same, then drift off back to being different. |
Dear Swedish Redditors, why would Stockholm University take down their professors' portraits and put a fake moose on the wall instead? | First of all, the article is written by right wing extremists so it might be a bit biased . SU probably wants to promote diversity more than anything else and so the moose was put up. But Sweden is a country which is so scared to offend anyone, so they will make a move like this before too many has a chance to get offe... |
Why should I not store my PH meter in RO water, even though the RO water keeps it perfectly accurate? | Storing a glass pH probe in RO water strips the ions out of the glass, thus rendering the probe useless. If you've been storing it in RO for 6+ months with no need to calibrate it, I'd seriously question its reliability/accuracy. They tell you to store it in buffer solution for a reason. |
How do different animals know how to communicate with each other? | This answer could be the length of a full college textbook, which is why Behavioral Ecology textbooks do exist. In short, animals of the same or different species have instinctual behaviors of communication, and some are learned. Common patterns appear within the animal kingdom to communicate, whether it's directly or ... |
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