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What is "hidden hearing loss", why are people on the ASD more prone to having it, and what can be done to improve it? | I think by "hidden hearing loss" you mean Auditory Processing Disorder ? ie, there's no actual hearing loss, in the sense of being able to hear pure tones, but ability to process sounds are impaired to some degree. I can't answer why people on the ASD are more prone to have it, though when you consider that individuals... |
Why have the price of Legos gone up so much since my childhood. | I don't know this entirely, but here is what I think. Oil makes plastic, and oil has gone up, so plastic goes up, so LEGOs go up. |
How could an asteroid that's only 6mi wide cause a mass extinction event? | The meteor won't do anything to the Earth itself. What it will do is throw up a cloud of dust that blocks most of the light from the Sun from reaching the surface. This cloud not only blocks infrared heat but also blocks visible light. Alot life on Earth derive food from plants, either directly or indirectly, which use... |
Why do my ears burn when I eat temperature hot foods? | Capsaicin, the chemical that makes hot foods hot, tricks your nerves into thinking they are experiencing heat. This "burning" feeling sets off a reaction in your sympathetic nervous system. Side effects include increased heart rate and inflammation. These side effects cause the redness and hot feeling in your ears. |
What is being done to minimise the chances of IS/ISIS fighters from using the refugee/migrant crisis as cover to get into Europe? | I'm not sure of the precise controls being put in place, but this is a big, legitimate concern. It's a big part of the justification of EU countries that want to take on fewer migrants. AFAIK the controls against that are built into the asylum process. Obviously, there's a huge problem in that migrants are attempting t... |
What is the difference between prosciutto, pancetta, capicolla, salami, etc.? | prosciutto is dry cured pig thigh . Capicolla is dry cured pig shoulder. Pancetta is cured pork belly. It's called Salami if you ground up the meat and stick it in a bag before curing it. |
What the Glass-Steagall Act is and what it has to do with speculation | Without too much background knowledge: banks can have two arms - personal banking and investment banking. These were laws that prevented banks from taking money from personal banking and using it for investment banking. As a result, banks have less money to invest and turn less of a profit. The important part is that i... |
Why are so many stars visible from Earth on a clear night sky, but space seems so dark and empty from outer space? | Just as many stars can be seen from space. The pictures we see from space are normally taken facing the sun, the moon, or the earth. In those pictures the objects in question are far too bright the camera isn't able to get light from the stars. But we have **plenty** of pictures from space facing away from earth/sun/mo... |
Why do most charities only want money instead of volunteers or make volunteers pay to volunteer? | Volunteers are unreliable. Sometimes they show up, sometimes they don't. Sometimes they promise to do something and they don't. Sometimes they do show up to help and are completely useless or unqualified for what they have signed up for. Money doesn't disappoint. The $100 they get from you is absolutely as good as the ... |
How were early mathematicians able to prove their theories? | What constitutes a valid mathematical proof has evolved over the years. The earliest ones were [visual proofs of the Pythagorean theorem]. since then other types of proofs have been devised and refined. [This is a pretty good overview of the history of math proofs]. Generally whoever invented a new field would devise t... |
What makes a good sounding melody on a piano? | Most melodies follow a particular scale or guideline to achieve that sound. Some examples would be major and minor scales which are the most common. Major scales always seem to sound happy try playing from 'C' to 'C' on all the white keys that is a Cmaj scale. Minor scales can sound somewhat sad play from 'A' to 'A' on... |
How does condensation, in a closed system, reduce pressure? | Some of the matter that was gas is turning into liquid form - for example, water vapor turning into water. So now there's less gas in the same amount of space. Lower density. Less pressure. |
The Facebook Mood Manipulation study and its implications. | Facebook ran a study, without consent, on how people would react to seeing more positive themed posts and more negative themed posts. The researchers used an algorithm that manipulated what a user would see. They then observed how the user who saw the post reacted. For example: I log onto Facebook and see posts from my... |
Why is there more static electricity when it's cold? | Static electricity consists of free electrons that're sitting on the surface of every object. By free electrons, I mean that they aren't bound up in any atoms; they're just sitting around, static. Electrons can be dispersed from the surface much more easily by humid air compared to dry air. The electrons on a surface a... |
What was Y2K and why did so many people believe it? | It was simply a concern that because a lot of software was designed without the forethought to realize that we might need a 4 digit year once we hit the year 2000, it could potentially cause issues with critical software. People believed it because it was, indeed, a concern at the time. Gone un-addressed, we could have... |
Why do we still work 8 hours a day? | Actually overall there has been a gradual decrease in the average work hours. At the turn of the century work weeks were close to 60 hours per week. In the 70s the 40 hour work week became the norm and today the average worker works 33 hours a week. As you can see we are moving to less hours but the rate of change is v... |
Why do countries like the US, export and import oil instead of using their own? | The US isn't a single entity and oil is a commodity traded worldwide. What is a commodity? It's a good that's pretty much the same regardless of who you buy it from. You can buy it from a pipeline in Alaska, a well in Texas or off a boat from Saudi Arabia, it's all basically the same. The US is made up hundreds of mill... |
What happens on an Atomic level when you cut something? | You can't break apart the atoms themselves, nor the individual molecules. The forces that bind atoms together, and to each other in the form of molecules, are much too powerful for that. What happens as your knife slices through bread is that each "bread" molecule gets pushed to either one side of the knife or the othe... |
That we have to wash our hands not to get sick, but dogs eat everything and anything in sight but don't get as sick and as often as we do. | Dogs don't use their hands to cleanup after using the restroom. Many health issues arise in developing areas when bacteria, worms, etc. are in the digestive system, are excreted, and re-ingested or larvae find their way back into the system through a lack of cleanliness. This occurs in dogs and other animals too, but w... |
Why can my PC run Skyrim at 80fps but lags the first time it opens a gif? | Your browser begins playing the GIF before it's fully downloaded, much like you can see parts of a static image before the whole thing is finished downloading, so the first loop may be laggy, but the rest will run smoothly since it has finished downloading and is now playing from disk. It isn't a matter of your local r... |
when I download something, does my device become slightly heavier? | When you are downloading something, you are basically just flipping bits on your hard drive or states on your SSD drive. If you have a bank of 100 wall switches, does it change weight based on them being all flipped up, all flipped down, or each one flipped randomly?', "No. Data is stored by rearranging matter that's a... |
How is magnesium, an easily flammable metal used in flares, used to make products such as car parts and computer casings? | Sort of, it's certainly a tradeoff. But you can't just strike a match to a large magnesium block and set it aflame, it has to heat up to 900 F, which is very difficult to do for a substantial block of metal that conducts heat very well and is typically connected to other metal pieces that can act as heat sinks. So magn... |
Optometrists‘ air puff test | The puff test diagnoses glaucoma. Glaucoma happens when there’s too much pressure behind the eye. The puff test can measure the amount of pressure that is happening behind or within the eye. If it’s a high number, you have or are predisposed to glaucoma. If it’s a low number, you’re good |
How does dancing en pointe work? What does your foot look like inside of the pointe shoe? | I'll do my best to explain, as a former ballet dancer myself. An important thing to realize is that modern pointe shoes are well reinforced. [This page] gives a good basic overview of the parts of the shoe. The shank comes in different strengths depending on the strength of the dancer's foot, particularly the arch, and... |
How do doctors decide who to give treatment to if there’s long waiting lists and only limited treatments available? | For the transplant example the decision is based on a couple of factors. Need, length of wait and distance of travel being the biggest ones I know of. If you're talking in a more generalized emergency sense then it all comes down to triage. Basically treatment goes by patient need but only to a point. Eventually, someo... |
why does being hungry cause me to get a headache and be in a terrible mood? | Blood sugar levels, the brain runs off of sugar, so when you are hungry or when you have low blood sugar, this is your brain telling you to refill the stores. |
What would we see if we could see a wider range of wave lengths? | You would see more "colors". An apple is red because it reflects mostly red light. But if the apple also reflected a lot of ultraviolet light you would now see the apple as a combination of red and whatever color your mind would use for ultraviolet. Depending on the wavelengths you see, you would also be able to see th... |
What causes the different properties of fizz/foam of various carbonated drinks? | Water molecules don't like being at the surface, which is why there is surface tension. If there's a bubble of plain water, the water molecules in it will quickly move away from the bubble, since it has so much surface area. That's why plain water doesn't form bubbles. But some compounds are the exact opposite: They pr... |
What is a shitpost? | A submission on an internet forum that is low effort, irrelevant to the current discussion, often intentionally obtuse or offensive, or an attempt to derail the discussion. |
Why are the channel assignments on the digital cable guide so haphazard and disorganized? | I think a few factors contribute to the seeming randomness of channel placements. These are just things I have noticed in my time working in a small-ish IPTV provider. This is by no means a definitive answer. 1. Some channel providers are actually large companies which have multiple individual channels under their umbr... |
Why can't we force ourselves asleep? | When you try to force yourself asleep, you're thinking harder than usual to make yourself fall asleep. So by trying too hard, you're creating trouble for yourself to make yourself fall asleep. Also, your brain needs to function and your body cannot just be bedridden for days on end and our bodies naturally wake up as w... |
Why did the Pinkerton Detective Agency act as paramilitary for anti union organizations? | Because that's what their customers paid them to do? It seems like you have a different question, like why was this allowed or why didn't somebody do something. It's easier to answer if you ask more directly. |
Why does opening a beer sound different than opening a soda? | Tab shape. Thickness of aluminum. Shape of can. Internal pressure. I think some beers are pressurized with nitrogen and not air, that could change it too. Just about all of these changed can affect glass bottles too. Drunk people probably use more force for a faster opening too. That'll change the sound too.I think bee... |
What is the H and N stand for in H10N1 influenza? | They are proteins in it. Hemagglutinin and neuraminidase . There are 18 different and 11 subtypes.Proteins on the surface of a flu virus. H stands for hemagglutinin and N stands for neuraminidase. The numbers refer to the slightly different types. H10N1 denotes a flu virus that has the 10th kind of H and the first kind... |
Why are spiders so much scarier than other bugs? | From evolutionary point of view, most bugs would only be able to scratch or sting you, while spiders could cause some serious pain due to their venom. However there is also a lot of stuff unique to each person. For example, i would be fine holding a giant tarantula on my hand, but if say a mantis or a stick insect as m... |
What would it take to make 4K HD mainstream? | Probably much [larger walls or much smaller rooms] than most American homes have. For people with 20/20 vision, one must sit quite close to the set to notice the additional resolution, closer than [THX's narrowest reccomended screen angle]. Even with blu ray adoption has been much slower than with DVD suggesting that m... |
why do girls shave their eyebrows and draw them on. | This may be one of the most profound questions ever asked by a man.I'm not an expert on the matter, actually I know very little. Now lets follow logic here First I don't thing they *shave* eyebrows they waxed them or something. A person with thicker eyebrows might want them styled in a different way, so they get them d... |
What happens when a homeless person dies? What does the state do in that situation? | When the body is found, the authorities try to identify it and see if any relatives want to have a funeral. Assuming it was not murder, if the body is not claimed it is buried in a pauper's grave as cheaply as possible. |
WHY do website builders want us to despise their sites by filling them full of popups and unnavigable drop down menus? | Many good developers use them to make all the information on the entire site attainable quickly but that doesn't stop the less skilled ones from trying the same task. Some sites are worse then others about this. If the drop downs are done well it would work like YouTube does. It is nice and gets the job done. As far as... |
Why do people think the Iraq war was about oil when economically the war has cost 1000x more than any covert oil extraction could produce? | First you need to understand where the money the war has cost actually went. It financed US companies developing and producing gear. It financed the salary of US civilians and soilders the like. So if you really want to know how much the war has cost you actually have to look at how much money actually left the US syst... |
Why is it that in Science Fiction, Military Space-faring vessels are almost always controlled by the Navy? | Because the Navy is the branch of military that is most often associated with travel, and ship, and such. Not to mention naval terms are often used because the other branches don't really have terms for such large modes of transportation. Most likely in the future it would not be any current branch in charge of spacecr... |
Why hasn't my credit score suffered from not paying medical bills? | Yeah, my wife and I went to by a house. It was a _URL_0_ us that her credit score was awful. We have been married many years and all of our finances/purchases are together. Turns out she had an unpaid medical bill. Thing is, we knew nothing about it. On top of that, it was for a very low sum that we would have paid if ... |
Why do we feel embarrassed for others who have nothing to do with us? | I think in the end one would call it empathy. It's similar to how most guys feel some sort of stress at their testicles if they see a guy getting his balls hurt. To the why part: I'm no professional, but I would say that the main reason why we feel embarassment for others is because evolutionary speaking, people who sa... |
How do computers/phones know how much charge their batteries have? | they create a constant voltage from the battery, normally using either a voltage regulator, or a zener diode. they then use this constant voltage to make a scale, and compare it against the voltage coming from the battery. batteries have a formula relating the amount of charge left in them to their voltage. |
Why is it so hard to swat a fly with your hand but easier with newspaper? | Your newspaper has greater range, greater surface area, greater velocity, and you aren't afraid of hurt it or anything it hits. |
If I buy a software or a pc-game and upon installation I decide that I Do Not Agree with the EULA can I return the package and have my money back? | Usually, the EULA will state that if you disagree with the it, take it back to the store for a refund. Usually the store will refuse the refund as you had to open the package to read the EULA. At this point, you can do what others have done: Get a lawyer and force the issue or accept the loss good luck. For more fun, r... |
Why do companies like Ferrari which advertise minimally still achieve international recognition? | They do advertise. You just don't see it because you aren't the target market. Have you seen advertisements for audemars piguet, leerjet, lurssen? Probably not.Supercar and luxury car manufacturers often advertise on the professional racing circuit instead of TV. A Lamborghini ad will be wasted on the vast majority of ... |
Why does hunger feel so much stronger than thirst, despite dehydration coming about quicker. | Hunger generally starts when the body stops metabolizing food and starts using stored energy, but there isn't really an equivalent for thirst. That being said, hunger pangs hurt, but being dehydrated feels like walking around with a concussion after sprinting for a mile or two. It's not "painful," but I wouldn't be abl... |
Why do some cars have timing belts, when chains can last much longer? | Chains make more noise, stretch, & take more power to turn than a belt. The belts stretch too, but not as much , are much quieter, & take less power to turn. |
How and why did Republican's elephant and Democrats' donkey become their mascots? | Democratic Party: Andrew Jackson was affectionately referred to as a *jackass*, so he used the donkey in his campaign posters. A cartoonist, Thomas Nast, used it in his political cartoons for the newspapers. Republican Party: Thomas Nast also used the donkey in a cartoon portraying a lion and scaring all the animals at... |
what are complex numbers? | a complex number is a distance together with an angle. Imagine you could not turn side to side and could only see in front of you or behind you, then you could use distances to describe everything you see, with negative numbers describing the the things behind you that is want the real numbers are, they are measurement... |
How does adding fiber to your diet help the digestive system? | Your feces is made up of small amounts of water and mucus, dead cells from your gut, bacteria from your gut, and any undigested food you have left over. When you're healthy, everything on that list stays about the same except for the last one, food remnants, which depends on what you eat. Fiber is a part of food you ca... |
How do movies that are staged in the past find their props? | It's a little of both. If it's settings like the 60s and 70s it's pretty easy to find old clothes and props for cheap. Probably got whatever they could find at thrift stores and flea markets and such, and just made whatever they couldn't find ", 'Prop suppliers. I knew one in Boston back in the 1980s. He lived in a mas... |
if color ink is so expensive, how do companies afford to send me so many full color HD ads and coupons in the junk mail every day? | They probably don't print those on shitty inkjet printers, but on large professional printers that are much more expensive to buy and maintain but have a certain economy of scale when it comes to raw materials consumed. Printing these ads and coupons is likely a lot less expensive for them than it would be for you.Colo... |
During the Rwandan genocide, how did the Hutus identify the Tutsis? I don't want to sound racist but how do you tell them apart? | They had identification cards. But at the same time there were minor physical traits that they used to "identify" each group, a tactic similar to the onw used with the Holocaust and Jews. Most of these were indistinguishable. They even made a joke about it in "Hotel Rwanda" where an American photographer asks two women... |
why, when I lie down to go to sleep, do I occasionally see a flash of light? | Sorry, I'll boost the ISO and turn off the flash next time, nothing to worry about.Just throwing it out there, but unexplained flashes of light when your eyes might be jiggled are a sign of a detaching retina. Try shaking your head around and look for a flash. If you see one get yourself to a doctor ASAP! |
What is accomplished by the bank by raising the interest rate after so many missed payments on a Credit Card? 20-30%?? | They raise the rate to discourage people from not paying. There has to be some kind of penalty for not paying, or else everyone would just ignore the deadline. But they don't want to confiscate your house just like that - it's easier to try it peacefully at first, by making your debt more threatening. This is very effe... |
How/when do we develop taste? Why some food tastes disgusting when we are children, and then we grow to like it as adults? | Baby's tastebuds are hyper sensitive to bitterness because most naturally occurring poisons are bitter. This is a self defense mechanism that evolved over thousands of years to protect babies from eating plants that would kill them. As we grow older, our bodies become less susceptible to toxins, and thus no longer need... |
Some products, like chocolate contain milk products and don't need to be refrigerated, so why is it that? | Things like "milk chocolate" generally have tons of anti-microbial ingredients, namely sugar and/or salt, as well as other non-natural additives and preservatives that inhibit the growth of any sort of bacteria.Because a chocolate bar is fairly dry, it's ingredients have been pasteurized, and it's wrapped and kept rela... |
When people suffer fractures in places like the ribs, how doctors manage to heal them? | > how doctors manage to properly heal a fractured rib? Doctors don't heal anything, only the patient's own body will actually heal a wound. In the case of a rib it needs to be held in place so that the body can fuse the bone, and due to the general immobility of the chest this might just be wrapping the torso and takin... |
Why don't sharks last long in captivity? | Sharks aren't the most robust fish species, and size, diet and activity effect the health of all fish species. Sand tiger sharks and species of cat shark are often kept in aquariums because of their size. Another contributing factor is the build up of waste and size stunting in a tank rather than an entire ocean. |
How do aboriginals keep their teeth from falling? | Humans have been brushing their teeth for far longer than people have made commercial tooth brushes, as the one you're used to seeing. _URL_0_ I've used stick toothbrushes a few times, mostly as a novelty when I've visited a few rural villages in Africa and India. You chew the stick a bit until it becomes frayed, then ... |
Why are red hot metals red? | Black Body Radiation. Basically, when a "Black Body" is heated to certain temperatures, the kinetic energy release by the body is partially heat energy and partially electromagnetic waves, or \'light\'. The light emitted by the object transitions from infra-red wavelengths and into the visible spectrum as temperature i... |
How does a twin "absorb" the other twin in the womb? | In the very early phases of the developing embryo like the blastocyst it's just a ball of undifferentiated cells. There hasn't been any activity yet to distinguish the individual components: what's going to be the front or the back? Which end is the head and which end is the butt? Because there's no distinction between... |
Why do we get a weak signal in the elevator | Elevators are enclosures made of metals that conduct electricity. This type of enclosure blocks electromagnetic fields, which is what cell phone signals are. Somebody with more of a physics background may be able to give more details in ELI5 terms as to why this happens; I only know that it does. From the Wiki for Fara... |
Why do we have a middle name? What is it's use? | Many Reasons 1) So you can tell your Mom is **really mad** 2) So the government can have a better chance of telling you apart from that John Smith who's supporting ISIS 3) So that Family members can feel honored that your child was named "after them" without subjecting your child to a first name like BeatrixIn Arab cul... |
Why do I usually feel smaller and skinnier than I really am? How do I fix this view and get a better sense of how big I am compared to others? | I'm assuming you lift weights? The day you start is the day you become forever small. You just have to remind yourself of your size, attributes, etc. Usually feelings of inferiority are tricks of your own mind. |
How does a president earn money and who sets his wage? | Similar as for members of congress or the parliament of the country: paid by the state, just like any other public servant. Difference is how the wage is set. Usually the parliament has to pass a law. In most countries, since there is a clear conflict of interest , there is usually an independent commission that is cha... |
Fundamental theorems of welfare economics. | So, imagine an optimal, competitive free market. Transactions don't have any outside costs like transportation of goods, and anyone can freely enter the market, and no player has any kind of market power. This sort of market is incredibly efficient, as you know, and generates a lot of benefits. So, the argument goes, w... |
Why are there different types of law enforcement, police officers, state patrol, sheriffs etc, and what different powers do they have? | It has to do with different jurisdictions of authority and making sure that the vast areas of land have law enforcement. City Police: They have jurisdiction inside the city limits of a given city. Their authority ends at the town line. Sheriffs/County police: They have jurisdiction within the borders of a given county/... |
Why is it that when you are laying in bed, just about to fall asleep, you sometimes suddenly feel like you are falling and jerk back up fully awake? | This is known as a Hypnic Jerk. It occurs most commonly in people with messed up sleep schedules or heavy caffeine users, but can happen to anyone The prevailing theory on the cause, is a lingering evolutionary instinct from our days as early primates in trees. As your body relaxes, your mind can mistake the subtle shi... |
Is New York's anti-mask law constitutional when applied to protesters? | I'm not specifically familiar with any particular case which came from those protests you named, however, I can emphatically and thoroughly explain that a great many of New York City's laws are patently unconstitutional and have been making me sick for years. The Stop-And-Frisk law was just so utterly and obviously unc... |
How can someone go from having a extremely bad allergy to overcoming it in a couple of years? | Sometimes exposure therapy works, taking a little more each day until you build up a resistance. That's how a lot of the poison ivy medications work. Sometimes people age out of allergies, not sure why. And I've heard claims parasites can cure allergies and autoimmune disorders. Infecting yourself with hook worms has b... |
That photo of Billy the Kid. How do we know that's really him? | i'm sure they're holding back details until the NatGeo documentary airs. But there are a few things that suggest it's probably real. Sallie Chisum had a diary entry that mentions a party taking place at the location of the photo. Apparently it was the wedding party of one of the LCRs, [Charlie Bowdre]. A man very simil... |
Why is the colour blue so scarce in nature? | For one most, if not all, animals cannot produce blue pigment. So for animals like butterflies or blue jays the blue color comes from various structural/physical properties that scatter light to make it appear blue . Now explaining why it isn't common is more difficult; it could just be that evolution just hasn't broug... |
The purpose of "Right To Work" laws in America and who it benefits | Right to work laws state that you can't be required to join a union as a condition of employment. This allows an employee to work without paying union dues . Were you thinking of at-will employment? |
How would the world change if we limited each family to two children worldwide over the timespan of 100 years? | The population would fall. Enough children would die before reaching the age of sexual reproduction and enough people would choose not to have their quota of children. Note this is what we will see in the future. Population growth is negative in many places already and we expect the fertility rate of most countries to ... |
How gravity assists work. | Gravity works over time. 9.8 meters/second *per second* so, you're falling at the planet, you gain speed but you miss the planet. Now, you're still being decelerated by gravity after you miss the planet, but are going much, much faster so you don't spend as much time being held braked by gravity as you spent getting go... |
How do post apocalyptic movies make major cities look barren? | For close-up shots, they block off that area of the city and bring in props and set pieces, or they build a set that looks like the city from street level. For distance shots, they use CGI or miniaturesThey build a small portion of the envisioned post-apocalyptic environs where the actors play their parts. Big green sc... |
Why is it so difficult to create PC emulators for game consoles that have been around for years (like the PS2, GameCube etc)? | Emulating a game is much more involved than just running the code. Emulators essentially have to simulate the entire console's hardware within a program. All of its sound and graphics processors and so forth must be converted into code. This can be very difficult, as the hardware of the PS2/Gamecube generation and abov... |
Why do snails move so slow? | Because they have no need to move faster. Their method of moving is efficient but slow - and as in loads of things, it's a trade-off that works for them. Were they to move faster they'd need to produce slime at a much higher rate - and the slime is really clever stuff. It's very low friction at low speeds - you need to... |
How is the world in debt $100 Trillion? Who does the world owe? | Whoever lent the money. Sounds like how a loan works? Honestly though, Redditinuk is right. BanksIn a nutshell, to each other and ourselves\r. |
How do different wall paint colours affect a person with colour psychology? | Like when a diner has a lot yellow and red throughout It reminds you of mustard and kept hip then suddenly your craving a tasty hamburger or a nice juicy hot dog Lucky for you this diner makes those. Or hospitals are mostly white and light blue Calming and clean colors. To promote a calm environment. If you work nights... |
How do movies/Tv make it look like they're having sex | The actors wear things to cover up their genitals. The guy might get a hard-on but it's strapped down. Further, it doesn't feel very sexy from the actor's perspective because they are wearing makeup under hot lights with thirty strangers staring at them and they are trying to pretend to be having sex through multiple t... |
If we began selectively breeding gorillas, orangutans, or chimps based on their IQs or abilities, how many generations would it take before they would begin to rival humans in intelligence? | They may never. At least not without direct genetic manipulation. Artificial selection does not create the same kinds of pressures that natural selection does: in other words, on the path to \'human level intelligence\' there may be unintuitive milestones that actually appear to be a step back. You see, there are aspec... |
Why do light bulbs flicker but then stop and shine light like normal? | Light bulbs convert electricity to light and warmth . The amount of electricity delivered to your home is limited. Other machines in your house use electricity too, in particular things that have an electrical motor inside them use a whole lot of electricity while starting up. In the few seconds it takes the motor to g... |
Why do your fingers get pruny in water? | [Because your nervous system tells them to]. Yes, your body actually controls the wrinkling itself. As for why your body does that, scientists think it might be to improve grip on wet surfacesBiologists believe fingers wrinkle in water for better grip [Source]', "Related question: I heard that if a finger is transplant... |
Cold Reading and Hot Reading. | After looking up to make sure I had an understanding of things I can say this: There are two types of Cold and Hot readings. Both mean the same thing at it basic bits. One is used in Theater and the other used in Communications. A Cold Reading is a "reading" done without prior knowledge. In Communication, it would be w... |
Why is (American) football called football even though you don't play it with your feet and the ball isn't actually a ball | At the time in the world if you didn't play the game on a horse, it was known as *football* because, well you played it on foot. _URL_0_", 'Technically the ball is still a ball, just an odd shaped one.If game names must be literal, then why is cricket called cricket? Are insects involved? Seriously, though. The first f... |
Why do dollar bills (US) have that distinct "money" smell? | I searched around for an answer a bit and came to a couple different factors that might give money that unique smell. US dollars are made from cotton and linen fibers and a highly secret kind of ink which is what most likely gives a fresh dollar that unique smell. After a while, though, dollar bills likely collect a lo... |
how NASA is able to fix electrical problems on the curiosity Rover from so far away? | There is very little they can do, besides turning circuits on when they work, or off when they don't work - and of course the age-old "switch it off and on again" to reset a system when a software glitch is suspected. With regard to the recent electrical problems, according to [this site] the problems were most likely ... |
How come when you eat a large meal, and you are "full" do you become sleepy afterwords? | Carbs trigger the brain to release melatonin and serotoninThe parasympathetic nervous system takes over, essentially putting your body into "rest and digest" mode. Monoamines like melatonin and serotonin do play a part but are not the only factor involved. Melatonin stimulates drowsiness and often chemicals in processe... |
Why is exercise not enjoyable if it is beneficial? | It is enjoyable once you start doing it. The reason it's found hard to start is because as a rule of thumb, it is evolutionarily beneficial to save energy rather than "wasting" it in superfluous exercise. The problem is that in our society, you can almost get around moving altogether; but that hasn't been going on for ... |
How come gold is so important and valuable? When, why and how did this process start/happen? | What it boils down to, basically, is a few points. * Gold is very unreactive This is good. You don't want coins rusting in your pocket or bursting into flames if you get a bit sweaty walking along . * Gold is reasonably robust, but not -too- robust. Gold is soft enough that it's easy to cast, but not to the point of so... |
Why do we become less emotional as we get older? | I think because we learn that it's smarter to have less emotions, at least in the day to day. When you're young, you go into every situation expecting it to be the Best. Thing. Ever. The highs are really high, but the lows are really low. You give everyone all of your honesty, openness and emotions. But as an adult, yo... |
To overcome issues related to a gravity-less environment, why has the popular sci-fi theme of spinning spaceship sections (e.g. using centripetal force) not been utilized to create artificial gravity? | A big problem with this solution is that you have to rotate pretty fast. The simulated gravity for a wheel *r* metres across and rotating at *O* revolutions per second is: *g* = 4*pi*^2 *rO*^2 So to get Earth-normal gravity in a wheel with a radius of 4m you need to rotate at 21RPM. Yeah, quite fast. The other problem ... |
Why some people have "chemistry" between them and what's happening in the brain that we call "chemistry"? | This 'chemistry' is partly explained by the release of hormones like Oxytocin which is sometimes referred to as the 'love drug' or 'bonding hormone'. It's extremely important for establishing social bonds between people; in particular between sexual partners and between mother and child In terms of sexual relationships... |
Does the current net neutrality discussion sweeping Reddit affect me in the UK | It impacts everyone's equitable access to content regardless of what country you're in. It's not explicitly what's happening now that's so terrible. It's the rule loosening that would allow ISPs to effectively choose which sites you can and cannot reach for your average monthly charge. If you watch a lot of YouTube, th... |
If you pause a streaming video, will it keep using up data, or will it stop once the file is complete? | This is up to the player / developer to determine. Basically, the developer will balance a few considerations: 1. you buffer to maximize the user experience. You want to keep enough on the computer to prevent the spinner-of-doom as much as possible.2. you don't want to "over-buffer", because you'll use up local disk sp... |
Why aren't unidentified dead bodies matched with missing persons? | Well they are, if they can be. The police and medical examiner will use fingerprints, DNA and dental records to match to known missing people.They are but you have to realise that facial recognition etc isn't really as advanced as CSI would have you believe. You'd need to know that persons face. |
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