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Why do radio stations always start with a K or W | K is used in the western US, W is used in the east. I believe the Mississippi River is the dividing line, but I'm not sure on that. |
Why the fuck does the shower curtain move toward me only when the water is on? | Convection: this causes the warm air to rise, and the cold air to take it's place. Air in the shower goes up, air outside of the shower tries to come in from below.Actually this is one of the mysteries of science. The person who discovered the actual reason for this will win an Ignobel prize for sure. _URL_0_Sorry, but... |
How does ISIS finance their operations? | Cells are required to send 20% of the income generated from kidnapping, extortion rackets and other activities to the next level of the group's leadership. Higher-ranking commanders would then redistribute the funds to provincial or local cells that were in difficulties or needed money to conduct attacks. In mid-2014, ... |
What is frame invariance? | Reference frame invariance means it doesn't change depending on what reference frame you're in. Sometimes it's easiest with examples. So what are some things are are *NOT* frame invariant? Velocity—your velocity is entirely dependent on what reference frame you're on. From your own reference frame, you are moving at 0 ... |
Why do different countries across the globe use different types of power outlets? | Different standards. When putting in electrical cables, you must follow a certain standard that your company sets you, and long story short, each country has a different idea on how electricity has to be handled. For example, the US standard says that plugins must have a ground between two hot wires that lead to a fuse... |
Why do pigeons and doves look the same all around the world? Also, why ARE they all around the world? | There are actually many types of pigeon around the world. However, the ones you commonly see in cities are the domestic pigeon, which is a specific variety of rock pigeon. The rock pigeon is the world's oldest domesticated bird. As the name implies, these are birds that have been domesticated by humans. The rock pigeon... |
Why do people mukbang? | Mukbangs have become increasingly popular in Korea because a lot of people suffer from weak stomachs or don't have much of an appetite. To a lot of the korean people, watching someone enjoy the ever-living shit out of their meal has become both enjoyable to watch, and a good way to boost the appetite.As with many strea... |
Why are perfume ads all uniformly bizarre? | Short answer: because they can't use the TV to show what the stuff smells like. Long answer: because they want to make sure that the brand is cemented into your mind in a slightly positive way, so they flood the senses with imagery related to sexuality, pleasant activity, and intrigue, which gets you to remember their ... |
How do certain diseases/illnesses cause weight to be gained? | Some diseases, like liver failure, heart failure, and kidney failure, cause water to be retained in the body, which can cause edema. Some medications also cause water retention, and some medications cause an increase in appetite, such as most antipsychotics. There are some diseases that affect metabolism, such as hypot... |
What causes the “stomach dip” feel when falling off a rollercoaster? | The g-forces on your internal organs. You feel like your stomach is rising because it litterally is as you plummet down |
Why is there a sudden rise in nationalism in English speaking countries? | It seems very sudden, but it has not been. Nationalism kind of waits for an opportunity to present as a solution rather than as a problem. The recession and the fallout, the lost wages, the lost professions, have been very hard for many groups in Europe, the UK, and the US. Nationalism presents a simple answer: "If onl... |
How to retailers make money off of selling gift cards? | Gift cards are genius if you think about it. You pay $20 cash, and get $20 on a card. The brilliant part is that the entire card doesn't always get spent; i know for a fact I have some old gift cards still laying around. So in reality, some times we are paying $20 for a gift card in which we end up spending, say, $18 s... |
How does a calorie counter like myFitnessPal get its data from? | These apps use two ways. One is the generally agreed upon amount of calories by the FDA or other relevant agency. This is usually fairly accurate and sometimes has a kind of mark to indicate that the app agrees with this entry. The other is user input. If I want to log a specific food and it's not in the database, I ha... |
What do stores do with clothes that never end up getting bought? | A charitable donation is probably the most likely fate of these clothes, the store can donate them, and claim the charitable action as a tax deduction for the value of the stock instead of just eating a lossThe bigger stores send them to places like TJMAX. If they still do not sell they get sent to AfricaDepends. Brand... |
How does a CPU activate/deactivate specific circuits | The is a component in the CPU called the "control unit." Says what it does right? When it gets an add instruction it will hold the control lines to the ALU high to turn it on and the control line for the Adder output high to select that output as the desired output. I think the problem your having is whatever diagram y... |
The protesting that has been going on at South African universities. | The current protests are simply about tuition fees: the universities wanted to increase them by 10-12%, which could have forced poorer students out. A government proposal to limit increases to 6% didn't stop the protests, and they are now proposing a cost freeze for the next year. |
During famines, children get huge stomachs while the rest of their body is nothing but skin and bone. Why is this? | It's called kwashiorkor. It's caused by a deficiency in dietary protein. Basically they can no longer properly retain their fluids and it builds up in the abdomen. Normally proteins in our blood stream help to maintain the right amount of dissolved "stuff" to keep our fluids properly balanced due to osmosis. When there... |
How do electric motors turn electric energy into motion? | There's actually 2 different kinds of motors. Small ones simply use a magnet suspended in the middle of a coil of wire. By running a current through the wire, the magnet "follows" the rotating field and spins a shaft. This style uses a constant DC current. The larger kind of motor, like the kind you might see in your c... |
Dreams - is there any proven science behind them? | There is no such thing as proven science. Science looks for evidence and offers explanations but is never considered proven. It's always open to being wrong. |
How did Jews of today become what they are from what Jews were back in the bible days in the middle east? | Back in the first century AD, the Romans ruled the area where the Palestinian Territories and Israel are now. The Romans called it Judaea though. The Jews didn't like being ruled by the Romans, and they kept rebelling over and over. Finally, in 123 AD, the Romans kicked them out of their capital city and most of the Je... |
What would have happened to Brad Pitt's character after the movie Se7en? | Worst case scenario, voluntary manslaughter conviction. Best case scenario, insanity defense. If I remember correctly, he still looked pretty out of it afterwards, so if he's still suffering from some sort of psychotic break his trial might be delayed as being incompetent to stand trial. |
Why is it worse to drink alcohol while on certain medications? | I think a big part of it is that alcohol is a blood thinner. If your medication is also a blood thinner, then you have a compounded effect that can be pretty harmful.Not a doctor, but attempting anyway. First, you run the risk of throwing up if you drink too much alcohol. Medications take time to metabolize, so if you ... |
Why does static electricity seems to increase in cold weather? | Colder weather tends to be *drier*. Static electricity produced by friction tends to increase under dry conditions. Humid air tends to conduct electricity better than dry air, so it is able to drain charges from things before it builds up.With cold weather the humidity drops. Humid air helps increase the surface conduc... |
How do electric water heaters work? | **edit my maths is waay off** Water is great at absorbing energy. This means that to raise the temperature of 190 litre tank to - let's say 80 C from 20 c - is roughly 31,768,000 joules. So unless you want to be pumping more power through your water heater than the rest of Madrid combined, you are looking at roughly 4+... |
The difference between SSRI and SNRI and how they affect your serotonin. | Both inhibit the reuptake of serotonin, supposedly increasing your feelings of "happiness" or well-being, but SNRI also inhibits the reuptake of norepinephrine which if memory serves correct should reduce anxiety. SNRI is also newer, so it is based on further research after SSRI was developed. |
Why is having my real name on the internet dangerous but we want our real name in credits of stuff we work on? | Who told you this and are they a reliable source of information? A name by itself is meaningless really, especially if it is a common one. Identity issues come with giving out name, address, occupation and other information then it might be possible for people to use it in ways you wouldn't like or to try and steal you... |
How would dropping thermonuclear weapons on Mars warm the planet like Musk claimed on the Late Show? | > dropping thermonuclear bombs results in basically a soot rising into the atmosphere, Mars has a serious shortage of plants and other stuff to burn. The idea is that you use the bomb to melt the Martian icecaps. These contain carbon dioxide, thus triggering Martian warmingI stand by the theory that Elon Musk is an ear... |
(US) - Paying your mortgage every 15 days in instead of once a month to save "HUGE" amounts of money | Argh. So much misinformation here . First of all, it's usually "pay 1/2 of your mortgage payment every 2 weeks," not "pay every 15 days". The difference is important: pay every 2 weeks, and you end up making 13 payments per year instead of 12. The extra payment goes toward principal, so you end up paying it off faster.... |
Why does my eyelid twitch, sometimes for days? | It can be from lack of sleep, or just about any number of medical issues. In my case, my left eyelid twitched, hung down about halfway, and eventually my pupil started dilating funny because I had a tumor on the nerve which controls those functions. Non-cancerous, nothing to worry about once I had it removed.I heard it... |
What were the actual events that sparked the fighting in World War II? | In many ways, WWI. After the war Germany was very wingclipped: they couldn't have a military, had to give up their colonies and about 1/10th of their country, and owed almost 100k tons of gold to the "winners" of WWI. This, along with the Great Depression, created a Germany where radical ideas blossomed. Hitler took po... |
How is the main infantry rifle if the US military banned from civilian ownership despite the 2nd ammendment of the Constitution? | > A well regulated Militia, being necessary to the **security of a free State**, the right of the people to keep and bear Arms, shall not be infringed. STATES have the right to a well organized militia. PEOPLE have the right to bear arms.Correct me if i'm wrong, but you're asking why the government can pass FOPA in the... |
Why does my ball sweat smell worse than my regular sweat, and also lady parts sweat smell worse than regular sweat | As others have said, bacteria can cause some of the smell, but the areas you've described also have [apocrine sweat glands]. |
is mbit/s a rate of speed? | Speed.Also I'm sure you mean Mbit/s To explain further, Mbit/s is Megabit per second, and it describes the rate of transfer of data over some medium, most often your internet connection. Not to be confused with MB/sec, which is megaBYTE per second. A byte is 8 bits, so 100 Mb/s = 12.5 MB/s> can't agree if mbit/s is act... |
Why do HDR videos require more processing? | HDR is more information between the darkest and brightest points. The greater information per-frame means it takes longer to load, and better hardware to process. |
How can food have sugar AND zero calories? | In short: it can't. What you are tasting is almost certainly not 'real\' sugar: it is likely to be an artificial sweetener which stimulates the same receptors as sugar in the mouth/brain, but with an entirely different chemical makeup. Add it to the list of things we can attribute to "yay, science!" Technically, even t... |
How do internet pirates make money? | Mostly through donations or advertisements if they have a website, although money isn't the main motivation for internet pirates. They usually want to show other releasing groups what they're capable of |
Why is it that it on a moving subway train it is easier to remained balanced by walking, as opposed to just standing still? | it's because you're used to it. when walking, there are all sorts of forces trying to tip you over, and you're used to them. the movement of the train isn't going to make a huge difference. you're not used to things moving when you're standing still though, so while you're physically perfectly capable of staying uprigh... |
Why does love fade away? | People change over time. Sometimes those change paths merge, sometimes they go further and further apart from who you fell in love with. Before you know it, you're out of love and have to pick up the pieces. |
What does it mean to claim something on your taxes? | Let's say you're a photographer. You make $50,000 a year and you pay a 10% tax rate -- $5,000 each year. You buy a new camera for $10,000. As a photographer, you *need* good cameras to do your job properly; it's a work expense. So you *claim this on your taxes*. When you report your income, you say "Well, I made $50,00... |
How and why do some cities annex surrounding areas and other don't? | Taxes and Unincorporated land. In the US there are usually four layers of government. Federal, State, County and Municipal. In some areas you have what is called unincorporated land and this is what usually gets annexed by a city . What this means is that if you live on this land there is no municipal government of any... |
What is "Latency" and how does it affect my internet? | Latency is basically the amount of time it takes for you to send data & receive a response from whatever server you're trying to reach, typically measured in milliseconds. Ideally, you want as low latency as you can get, especially in online games like WoW.Imagine having a conversation with a person. How long it takes ... |
when in a quiet room why do ears start to ring? | To the first part - only in a very quiet room can normal people can hear this ringing, which is just the flow of your blood through the blood vessels in your ears. To the second part - I'd say that after a period of being in a quiet environment, your eyes adjust and become more sensitive. Just like a light seems a lot ... |
How do touch screens work? How does my phone know to respond to the touch of my finger but not to objects, such as the end of a pen? | Depends what type of touch screen. Some, mostly older ones have pressure sensors, allowing both fingers and pens to work. Others go by electrical conductivity. So it will register your finger but not a random pen. But specially made stylus will work because it has the correct conductivity |
What makes different smells "good" or "bad"? | Smell is used to determine what is edible or not before you eat it. To a vulture, a rotting carcass smells good because they can associate it with a meal. For us it's bad because it's associated with food poisoning. |
Why do mood swings occur? | Mood swings refer to a rapid change in mood. They can occur in women who suffer from PMS or people who suffer from more serious disorders such an major depression, bipolar disorder, ADHD, schizophrenia, or other mood disorders. They can also be caused by thyroid disorders. From my limited understanding on mood swings t... |
Why did Spain and Portugal opt out of World War 2? | Spain had just finished fighting a civil war. They were politically aligned with the Axis powers but to busy fixing their own country to do much fightingSpain has been answered. Portugal apparently had torn loyalties. On one hand their government was essentially fascist. On the other, they still had the longest standin... |
Why does cold air make us sick? | Cold air does not make us sick. Being cold for long periods can cause some health issues, but cold air isn't bad for you. |
what exactly happens in a video game in the programming that causes glitches to happen? Especially glitches that have multiple steps? | Generally, poor coding practices. As a vague example, let's look at a little pseudo-code made up on the spot: if health = 0 then restart level That code would basically say that when your health is 0, then the level restarts. However, what happens if, say, you had 1 health, then took 2 damage? You'd have -1 health. Any... |
In a divorce, why are both parties entitled to half of the other parties, even if one is extremely wealthier than the other before marriage? | That is the default distribution, yes. The couple was considered to be in many respects one legal unit, with property held in common. Any split must take that into consideration. The important thing though is that an equal split is only the default position, and can be overriden if some other arrangement was specified ... |
How does backmasking (also known as subliminal lyrics) works | There are three kinds of backmasking: * recorded normally, then put on the track backwards* spoken backwards so it says something intelligible when reversed* completely imaginary The vast majority imaginary, but Manson did put real backmasking in many of his songs. Note that Manson came on the scene decades after the o... |
wireless electricity and why it wouldn't kill people around it | Look up induction. Michael Faraday figured it out way back when, but we are a lot better at it now. If you pass a current along a conductor , it makes a magnetic field. If you move a conductor through a magnetic field, it will make a current on the conductor. The [induction charger base pad and your phone's "charging r... |
Farting and its relation to poop. | > what purpose does farting serve? Farting serves the purpose of releasing excess gas in your digestive system. These gases are generally produced by bacteria that live within your digestive system > Why do they smell identical to the shit that I would imminently blast out? A human perceives smell by directly having re... |
If I were in a moving car and unable to hear or feel the vibrations of the wheels, could my body still tell if I were moving? | can you tell that you are currently rocketing around the sun at 67,000 mph?', "We're moving at a great speed *right now* sitting at our desks, but we can't tell that we are moving. _URL_0_ |
Why have recent season of shows taken breaks as long as half a year?(Breaking Bad, Doctor Who, Revolution?) | I think there are a few reasons for doing this: 1. You don't have to wait as long between seasons. A typical show will air all their new episodes within a few months, then go into re-runs before the next season airs. By putting a break into a current season, you end up waiting twice a year , but the breaks are shorter.... |
How does Equifax have so many social security numbers? Do people give Equifax their SSNs, or do credit card companies give Equifax SSNs? | Equifax is a credit reporting agency. Every time you apply for a credit card or loan, the people you're trying to borrow from send this information to Equifax . If you miss a payment, they send the info to Equifax. Every time somebody wants to know if they should loan you money, they ask the credit agencies about your ... |
How can the human penis vary so much in length when all other body parts are generally relative to one another? | I'd guess because it's not based on anything skeletal. All the body parts that have bones in them, are pretty much relative to one another. But things that are based on soft tissue, like faces and outer body shape, vary greatly.The vagina stretches to accommodate babies. The transitional epithelium of the bladder stret... |
Whats the difference between a $500 DSLR and a $500 < DSLR camera? | Well, most cameras come with lens, and the quality of high end lens is fantastic. As for the body, there's often computer added features that can do things like GPS tag images. There might be improved mics and such for video. They may have larger image sensors which can allow you to capture more light. There's autofocu... |
What happens in the body if you don't masterbate for like weeks or months, for both men and woman? | ELI5: Why have so many people recently started spelling masturbate as masterbate on reddit? Am I missing out on an in-joke somewhere? Is it some semantic shift underway?', "It seems likely that this causes a [wet dream], in both men and women. The problem is that it's very difficult to collect anything which is produce... |
Who decides who can stay in Antarctica or not? If I, as US citizen, wants to live in Antarctica, can I simply go their by ship, build an igloo and live? | Antartica isn't owned by any nation, so technically you can go there if you want. However, if you live in a nation that signed the [Antarctic Treaty], you will need permission from your government and sign up to travel with a company that has permission to go there. |
Why are igloos said to be 'really warm'? | Snow is used because the air pockets trapped in it make it an insulator. On the outside, temperatures may be as low as −45 °C , but on the inside the temperature may range from −7 °C to 16 °C when warmed by body heat alone.It's cold enough on the outside to keep it solid, but is such a good insulator that on the inside... |
Is there a journalistic standard in the U.S. with respect to reliance on unnamed sources? | Hello there, I'm a journalism professor. If you're asking about any kind of enforced standard, then no. The 1st Amendment generally has lead to a hands-off approach to MOST aspects of government intervention in the journalistic process. If you're asking about industry standards, there are some places that offer guideli... |
How does facial recognition recognize me when my face is bruised/swollen? | Facial recognition uses measurements of parts of your face that don’t move. Like the corners of your eyes, the point of the nose, distance between nostrils, and the angles between these points. Swelling is unlikely to cause errors, a broken nose that isn’t reset will. If you google facial recognition images you’ll see ... |
What would happen if the president went in a coma? | The [25th Amendment] is about presidential succession. Section 4 is specifically about how to deal with an incapacitated president who's still alive. The VP and a majority of the cabinet secretaries sign a letter to Congress saying the President can't do his job, and the VP becomes "acting President" until the Presiden... |
Why does tea infuse better in hot water rather than cold water? | Infusion of tea just means that the tea is spreading out and dissolving in the water. Things dissolve quicker in hot water because hot particles move faster. That's what temperature is - how quickly particles vibrate. So if particles are vibrating faster then they move around quicker.When water is heated, the molecules... |
How are shows like the Colbert Report and the Daily Show able to skim through quotes from other news sources so quickly? | They have massive research and writing staffs. It's not just Stephen and Jon. Once the clips are selected and the scripts are written, the things the anchor will say are up on the teleprompter and they just read them out. The staff in the control room roll clips and direct the camera operators. |
Why do games come out later in Europe even if that's where they were developed? | A lot of it will come down to the translation. For a game to be released in the whole of Europe, the game has to be translated into many, many different languages. Whereas in America, you maybe have just Spanish and French alongside the English. Another interesting trend to note is that games are often released on Frid... |
How do scientists determine how old animals are? | It's different for different animals. Some animals simply never stop growing, so size is a good indicator of age. Anything with an exoskeleton would fall under that category, like that giant lobster that was fished somewhere off the coast of Maine this summer. They know it was very old because it grew to be so large, a... |
Why is it that when I'm in a busy area, a festival or large community event, my phone struggles to send/receive message and make phone calls despite having full service? | Capacity is limited. You might be right next to a tower, but if the data bandwith is exceeded you can't have adaquete service. |
Why do venomous predators such as texas coral snakes have bright colourful body? | Exactly, that's the point. Most prey are found by their heat signature, and high quality color vision isn't a feature of most snake prey. If you're super poisonous and most birds would die if they bite you it doesn't do you any good if they have to bite you to find that out. You still get bit and that could kill or mai... |
If saltpeter is so dangerous and outdated, why do recipes still list it as an ingredient? | It's still available. Google search is your friend. _URL_0_ saltpeter or potassium nitrate, like many other nitrates are possible carcinogens. Sometimes it's necessary in food, but there are risks with using it. It's up to you to do the research on health risks and see if they are acceptable. Saltpeter when used in cor... |
Why are expensive things such as cologne, alcohol, and other liquids always in very fragile containers? | Three answers so far, and all three are incredibly stupid. The real answer is that glass is inert, in ELI5 terms, it doesn't screw up the aromatic qualities of the liquids you store inside it. All plastics pretty much will cause alcohol, cologne, etc to degrade rapidly. In glass, they tend to last a lot longer. |
The difference between a women's bicycle and a men's bicycle. | The cross bar makes the frame stronger, with significantly lesser flex. It is not a "man" thing, but just better mechanical design in general. Traditionally women's bicycles had lower cross bars to allow for skirts and other similar clothingThere are *two different things* that are referred to as a "women's bike": 1. T... |
Why do we get itchy when we see or talk about bugs/insects? | Bugs can be venomous. That itchy feeling could be a bug about to end your life or make you very sick. The brain reacts after seeing bugs by making you more sensitive to them, and hopefully swipe off any real ones. Its a survival instinct. |
The current global Internet architecture and how it's all connected. | OK I will take a run at this one. The Internet is a collection of smaller networks that known as autonomous systems who agree to connect with each other this can either either be paid or free depending on the relationship. Every AS is unique and will exchange information about how to reach one side of the internet to t... |
Ireland during the 1920's. | 1916's easter rising was a turning point in the structure of the 'conflict' before parties like the IPP had sought constitutional and political methods to separate or at least gain home rule from Britain. The Easter Rising was initially very unpopular with Dubliners and the majority of less radical Irish, however the B... |
Why, when you mix all colors of light together it makes white, but when you mix all the colors of markers together it makes brown/black | White is made up of all those colors hitting your eye. If just blue light hits your eye, you see just blue. If just green light hits your eye, you see just green. etc. But when all the colors hit your eye together, you see white. What does a pigment do? Well, it's not light, right? You're not shoving it directly into y... |
Why is the supply of gold considered inelastic and its demand elastic? | There is only so much gold in the world. There is some gold mines but they do not produce much gold and does not shut down or start up very fast. The supply of gold is therefore pretty much fixed and will not change over time. However the demand for gold changes all the time. In good times people buy jewelry and in bad... |
How are different varieties of cheese made differently? | Different ingredients, different storage situations, different flavirong, different length of time they are agedCheeses differ by how much cream is in the milk how the milk is treated before it's coagulated how the milk is coagulated addition of cultures while coagulating addition of other ingredients to the curds how ... |
Why fantasy realms share so many similar characteristics | Easily identifiable tropes/clichés allow readers to quickly understand points. If you give a character a flute or a harp, they understand they are a musician. If you give them a floogle, you need to explain a floogle. Things like swords and bows, there are only so many ways to kill people, and some are more iconic than... |
How did Denmark become such a large pork exporter? | Only a guess but i know Denmark from a lot of visits. In the rural areas you often see massive Pig Farms. 1) Geographically very flat, lots of farmland 2) Pretty stable weather, not too hot in the summer and not too cold in the Winter 3) Property value in central Denmark is quite low so big industrial farming is possib... |
Where do physical bacteria cells go after they die to say, sanitizer? | Where do any dead things "go"? Nowhere ..they just kind of stay there ..dead until something moves them. |
How do fuel economy (miles per gallon) gauges in cars work? Are they accurate? | To elaborate on what others have said, your cars computer knows how much fuel the injectors are feeding the engine in a given time period. Your cars speed sensor in the transmission knows how fast you are going. With fuel/hour and miles/hour your computer does the math and turns this into mpg and refreshes this calcula... |
Why does coming back from somewhere always seem faster? | Because we pay special attention to new experiences, which means our perception of time is slower due to processing all this new information. Coming back after feels faster because it's not a new experience anymore so the mind can basically go on autopilot during the periods it's already familiar with, which makes the ... |
Why do cooked vegetables grow bacteria (and therefore must be refrigerated) but raw vegetables don't? | Cooking breaks down the vegetables and exponentially increases the surface area that the bacteria can start working on. As an experiment, try chopping up some salad into very fine pieces. They'll go bad by the end of the day while the unchopped ones are still good to eat for at least a day or two.Vegetables and fruits ... |
Why is the color red associated and used as a "bad" color? | It is not. Red is not only associated as a bad color, it is however in some situations like the examples you give. So why red? Well, there are multiple theories/answers and I'll cover some: red attracts attention. This is a natural occurrence and it might be hardwired in our DNA because of evolution: blood is red, fire... |
Why is the air fresher in the winter even though there's less leaves on the trees to produce oxygen? | Oxygen can cycle through the environment, plus despite less deciduous trees producing oxygen, many northern forests are largely evergreen and still produce oxygen. More importantly however, with less growth, there is far less pollen in the air helping to give the fresh air feeling. Snow is also a natural scrubber to so... |
How does my body understand EXACTLY how to regrow the surface of my fingerprints if I happen to burn or cut them? | It doesn't. Your fingerprints are the result of underlying structure in your finger. It just grows back the same way it grew in the first place. It's like how the roofing guys know exactly the shape of your roof they don't, they just follow the existing frame. If you really screw up your fingers so that all the structu... |
I have a somewhat oily skin. Why do my eyes burn in contact with that oil? | If your eyes have a burning sensation from post-exercise, or during perspiration, the most common reason for this is the salt being perspired onto your skin. Salt is an irritant to sensitive areas such as the eyes. |
Why only the top 3 get prizes all over the world? | Three is a number that has a certain significance to people . Also it is often considered a lucky number. See [the wikipedia article on "3 for many more cultural referencesI imagine a lot of it has to do with keeping a certain level of importance in the ranks. Or, some guy in the beginning of time could have said, "Yes... |
Why doesn't or why can't Youtube normalize decibels? | A) extra processing on their end for each video, which would add up to quite a lot, for a feature they don't necessarily want. B) robs the uploader of stylistic choices C) would completely wreck some types of videos. For example, for a video that is mostly quiet then has a loud jumpscare it would have a low average vol... |
Why would raising the minimum wage be a bad thing? | my company employees 23 people between $9.20 and $12. We would employ more if our budget allowed. Our payroll expenses alone are around 15% of our companies net. If minimum wage were raised to $15 in our state we would release 7-8 people from service. Theres really no other option for us. Three years ago, the same bump... |
how do you lift 'with your legs' and not with your back | Basically you want to keep your spine, from the small of your back to your neck, as vertical as you can. Keep your back straight and your head up, bend your knees to lower yourself until your hands can grip the load. Then straighten your legs to stand up again and walk away with the load. [Some good images]', "The easi... |
what shared trait defines all dinosaurs, with their diverse body shapes and sizes? (small velociraptor vs. huge diplodocus?) | They *are* in clade dinosauria Clade Dinosauria contains Order Saurichia which contains Suborder Theropoda which contains Clade Tetanurae , which contains Clade Coelurosauria , which contains Clade Maniraptoriformes , which contains Clade Pennaraptora , which contains Clade Avialae , which contains Clade Euavailae Ther... |
How does our ear detect the sound vertical location ? | You know those curves and dips of your outer ear? They serve the function to not only catch sound waves but to alter the frequency of the waves depending on which angle the sound waves came from. This is also how we know if the sound is in front or behind us.This one is quite strange and interesting. Your brain calibra... |
If we cover enough of the planet in solar panels and covert maybe 20 percent of the incoming sunlight to electricity, would that reduce global warming to a measurable degree? Why or why not? | If you *replace* the other power sources such as coal and oil, then yes it would cause a reduction. Nuclear power is a much more realistic option on a large scale.It would cause a reduction, assuming that as you're adding solar power you're *removing and turning off* old methods of producing electricity by burning fuel... |
How does the new iPhone voice command system (Siri) work? | I don't know the exact details, but I do know that any query made to the system goes to remote servers with the voice command. There, the technology across multiple servers parses your voice to determine exactly what you say ). After that, a completely separate process then parses the words you said to pull out key wor... |
How do scientists determine the composition of atmospheres from Earth? | There's a Cosmos episode that should cover this. They basically take a prism and split the light coming from a celestial body into a spectrum. There will be darker lines in that spectrum. Each group of lines corresponds to an element, depending on which frequencies of light are most easily absorbed by that element. BTW... |
What do doctors ask you to count backwards from 10 when administering anaesthetic? | Just as another way of seeing when you're unconscious. They don't always ask to count backwards: they may ask you to recite the alphabet, or anything else that would involve you talking uninterrupted. It's not necessary, but for as long as you are still communicating to them, you are obviously still conscious.I assume ... |
What causes burned images on a screen? | In the case of CRTs or plasmas, it is uneven wear of the phosphors. The phosphors lose the ability to emit light over their lifetime. The brighter the image, the greater the damage. In LCDs, the liquid crystal cells have ions which migrate across them and which build up on the transparent electrodes causing the cells t... |
How come my car has options to blow air in combinations like defrost/floor and floor/panel but never defrost/panel? | [Link to year old thread]; basically, because of tradition. Since most turn knobs went from dash to floor to windshield, there was no option to go half dash and half windshield. While that limitation doesn't exist for electronic systems , and by comments on bat thread some older cars, it's just that there has almost ne... |
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