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is there a scientific explanation for homosexuality?
Not really. There have been various hypothesis but none of them has stood the test of time. At this point in time society has accepted homosexuality as a "you are what you are", just like your skin colour and the colour of your hair. According to _URL_0_, searching for the cause of it is not a path we should take: If we find it a single cause in during development in the womb, then it's a birth defect and the choice of a gay/lesbian child becomes suddenly choice of the parent. If we find a cause after birth, then it's a learned habit and people are going to offer solutions for it. As a last, enjoy who you are and who you love. It's that part which counts.
What causes that feeling in joints that makes you want to crack your neck? Why is cracking your neck so satisfying and addicting?
Yo ho ho! Yer not alone in askin\', and kind strangers have explained: 1. [Why does cracking / popping your back feel so good? ] ^1. [ELI5: Why does cracking your knuckles/back/neck feel good? ] ^1. [ELI5: why does cracking your neck and fingers feel so good? ] ^1. [ELI5: What cracking your neck actually does. ] ^1. [ELI5: What happens when you pop your neck and is it dangerous to do to yourself? ] ^1. [ELI5: What exactly happens when you "pop" your neck or any other body part? ] ^1. [ELI5:What happens when I crack my neck/back, and why does it give me relief? ] ^1. [ELI5: Why do we feel relief when we "crack" our knuckles/joints? ] ^1. [ELI5:What happens when I crack my neck? Why does it feel better than just stretching? Is it harmful or helpful?? ] ^
How did eunuchs urinate?
Castration generally only removes the testicles, not the penis. So they would urinate the same way as any other man. In the odd case that the penis was removed, there would still be urethral opening that they'd pee out of sort of like a woman pees.Also in some cases after the genitals were removed a metal tube would be inserted into the urethra and bandaged up this would then heal over leaving the hole open or in some cases leaving the tube as a spout of sorts
Why doesn't reddit utilize 'search internet for this image' functionality to prevent numerous reposts of the same image?
A) A lot of people like or don't mind reposts, as is evidenced by the shitload of upvotes they get. B) The people posting them often know that they're reposts. C) If you really think this needs to be done, you should be posting in /r/ideasfortheadmins/
Why is there not an anonymous bit-torrent protocol?
There is, sort of. It's called [Freenet], but it can only be accessed using their client software , and it is extremely, extremely slow. Proper anonymity is extremely difficult to achieve, especially in a peer-to-peer context like bittorrent.
What would it feel like to not be able to experience any form of sensory stimulation?
Well, if you were born this way, you would essentially be brain dead. If you were alive and had experiences you can recall, I'm guessing it would be like having a dream. It would probably induce some kind of dementia or delirium.
Why does a punch hurt even after I've been hit?
Your body releases chemicals that cause your ions to discharge in your nerves, there are still residual effects and chemicals along side your nerves are still discharging ions basically waves of reaction after the hit.
Why do we "speed up" when falling until we hit terminal velocity? If gravity isn't getting any stronger, why wouldn't my speed remain constant when jumping out of an airplane?
Gravity is a force acting upon you. It doesn't just 'yank you' once and then quit. It continues to pull the entire time you are falling. So there is a net force downwards for the entire period of your descent, which causes you to accelerate. It's only when you reach terminal velocity that there is a counter force, effectively cancelling out the downward force and leaving you with no net force. If no force was acting upon you, you'd continue at the same velocity.
Do submerged submarines rock or bob? Why, why not?
Most of the wave action is on the surface. So the bobbing and rolling that surface ships experience is minimal. There are still some currents under the surface that can push the sub around, plus as water is pumped into and out of the sub to cool various equipment the trim of the sub changes. Plus a perfectly neutrally buoyant sub is not stable, so the forward and rear ballast tanks are constantly being adjusted to point the sub up or down as necessary. Same for the control surfaces. So there are some subtle changes.
How do theatres get movies?
These days, it's all digital. For the most production companies, they use "DCP" or Digital Cinema Package. This is a specially prepared / packaged harddrive that is shipped/couriered to the theatre. The content on the drive is encrypted. It is transferred to the theatre's server via USB. There is a decrypt key tied to the DCP file bundle and the theatre that way things are tracked very closely. The same DCP bundle is sent to each theatre, but the DCP producers know what projectors it can be played back on. I'm not sure of the key structure, other than it's 128bit. I suspect that there is no obvious way to grab the decrypted files for piracy purposes but I presume there is a way, and the film industry just keeps their mouth shut. I also suspect that most leaks are done long before the DCP is created and shipped to theatres. Edit: [Here]is a drive in the Pelican box
Why do cats love seafood so much?
For cats, protein is essential to their diets. They're carnivores, afterall. Fish is a great source of protein and cats are attracted to foods high in protein. In fact, cats can't even taste "sweetness" - only "savory" flavors. This helps them avoid fruit and berries.
What is the difference between a soundtrack and a score?
A soundtrack is the compilation of all the sounds in a movie: the dialogue, the sound effects, and the music. The music includes original music made for the movie, or the songs chosen from existing material. The score is the original or adapted music made for the movie. The film's composer creates the music to correspond with the action of the movie. The score is a part of the soundtrack.Scores are often written specifically to accompany a movie/show. Soundtracks offer the songs played in a movie, including ones written and produced by artists. For example, Twilight has music that plays in the background a lot, that's part of the score of the movie. But when they play the song "Decode," I think it is, by Paramore, it's part of the soundtrack.
Why are there "old, abandoned castles"? If I was rich, I would kill to refurbish one and live in it. But it seems nobody wants them
Because if you were rich and decided to refurbish and live in an old abandoned castle you would find yourself becoming considerably less rich with the amount of money it would cost you to do so. It would cost a LOT of money to refurbish most of those castles, and then you would constantly be spending money on it's upkeep as well. A lot of them are also degraded to the point that they would be close to impossible to actually refurbish and/or have historical protections on them preventing people from doing anything with them. If you were rich and wanted to live in a castle you would be better off just building a new one.
Why can't aircraft manufacturers make a fly-by-wire system so pilots could fly a plane/helicopter the same way gamers fly them in video games (which is really easy)?
There are some UAVs that do it. But they're flying themselves and you're making suggestions. If something goes wrong, you may lose the UAV, but the damage and loss of life will be minimal . But with larger aircraft, even though they have sophisticated autopilot systems, there are still times when you need/want to have a human take full control. The main problem is those tiny little sticks, compared to the travel distance of the yoke. Just imagine fighting the wind, and you need 12 degrees yoke up when you have 9 inches of travel, versus 12 degrees up when you have half-an-inch.
Why is the Filibuster still legal? Are there any actual redeeming factors to it?
The problem isn't the Filibuster, it's that the filibuster is being abused. What you're seeing with Rand Paul is EXACTLY what the Filibuster is supposed to be. You hold up Senate business because there is an issue you feel extremely strong about and want to draw attention to it. The problem is that the filibuster is being used to make a 60-vote majority needed to pass ANY legislation. Not just the most contentious issues, but the minority is even Filibustering Motions to Proceed. We need 60 votes to even GET TO the debate anymore.The word "illegal" cannot be applied to the US Senate filibuster. The US Constitution gives the Senate the responsibility to make its own rules of procedure. Currently, those rules allow for the filibuster. The Senate can change that any time it so chooses.
Why do towels absorb the water
It is caused by Capillary action . Capillary action is the ability of a liquid to flow in narrow spaces without the assistance of, and in opposition to, external forces like gravity. The effect can be seen in the drawing up of liquids between the hairs of a paint-brush, in a thin tube, in porous materials such as paper, in some non-porous materials such as liquified carbon fiber, or in a cell. It occurs because of intermolecular forces between the liquid and surrounding solid surfaces. If the diameter of the tube is sufficiently small, then the combination of surface tension and adhesive forces between the liquid and container act to lift the liquid. In short, the capillary action is due to the pressure of cohesion and adhesion which cause the liquid to work against gravity.
How do you get from 1s and 0s to actual meaning?
Simple answer: There are different levels of COMPLEXITY in computers. You want us to explain how to go from complex to less complex. But let's start fron the begging.As a highest level of complexity in computers we consider the electric pulses, that go through the wires in a computer . And this is memory, all the memory you have in computer. Now going higher is pretty hard. You have to use logical gates and other mechanical things to read memory, change memory etc. so let's leave that as it is. But when we have this, there is this programming language that is native to computers called assembly. Then from assembly you make other, easier computer languages, then you make operating systems, graphical interfaces and programs. What i just said is pretty brief, because how computerd work is a very wide topic going through physics, mathematics and engineering . To know everything i reccomend you buy a book. Always the best solution to such topics. Peace", 'Computer components are made to mechanically respond certain way to certain bits, as they are input to them. Processor for example is built out of physical arrangement of logic gates. You put certain string of bits into memory, CPU physically retrieves those, and the arrangement of logic gates leads to CPU doing something with them. Your display device basically probes the cable to see if there is data on some memory buffer, and if there is, it retrieves those bits. It then again is set to mechanically change displayed picture based on those bit values, as they are entered as electric signals. The great thing about computers is that you can actually ignore the physical or mechanical aspect of it all. Because every part is built so that they react predictably to bits as they are input, you can just ignore all the underlying structure that enables display or cpu to work, and just think in terms of bits and their meanings.
What mechanism of action gives marijuana it's psychedelic effects?
I don't have quite the answer you want, but it's worth noting that THC is only one of more than 20 cannabinoids found in weed. Acetylcholine and serotonin are also affected.
What does it mean, and what challenges does one face when one has a CYP2D6 deficiency/defect?
CYP2D6 is a member of a large class of proteins called cytochrome p450s that are very important in the metabolism of drugs. In some cases, CYPs modify drugs so that they are inactive and don't work anymore while in others they modify drugs so that they do work. Not all CYPs act on every drug, however. Because everyone's genes are slightly different, some people have CYPs that are more or less active than others. In some cases, certain CYPs may be absent. This is why pharmacists and doctors often have to adjust people's doses of medications when they first start taking them. Unless we do genetic tests to know how active a person's CYPs are, its best to start a drug at a lower dose and then work up to one that is effective. Here's an example of its importance: imagine a blood thinner that is metabolized by a CYP to its active form. Person A has a highly active CYP while person B has a less active CYP. If they are both given a high dose of this blood thinner, person B's blood may be adequately anticoagulated. However, this same dose in Person A, with a highly active CYP, may cause life-threatening hemorrhage as so much of the drug is metabolized to its active form by the highly active CYP. A lot of research is being done in this area to identify which CYPs act on which drugs and how they do so.
Brianne Altice was just sentenced to "two to thirty" years in prison for sexually abusing students in Utah. How is such a wide range of sentencing possible?
She plead guilty to [Forcible Sexual Assault], which carries a sentence of 1 to 15 years per violation. "Judge Kay gave Altice three 1 to 15 year sentences, two to be served consecutively and one concurrently for a total of 2 to 30 years." [Source]. Since she's serving one of the charges concurrently, the time will run while she's serving the other charges. In other words, she's really only going to serve time for two of the instances for a total of 2 to 30 years. She has to serve at least 2 years and she won't serve more than 30. After 2 years a parole board will periodically review her case and determine when, if at all, she should be released on parole. Edit: Wrote on federal law earlier. However, this is Utah law being applied in a federal court.
Why do we celebrate with our fists clenched?
It's a show of power. Clenched fists, loud voices, arms held above your head, maybe even stomping the ground with your feet. Celebratory shows of power have been with humanity for an extremely long time. Blind people will celebrate in the same way, despite having never seen another person.
How did it come to be that beer cans and bottles in Europe are typically 500ml, and in the US/Canada they're 355ml and 341ml, respectively?
America is dumb and hasn't switched to the correct measurement system like they should have 50 years ago. Source, am American", 'The US uses the imperial system and not the metric system. Beer cans and bottles are usually 12 or 11.5 fluid ounces which are 355 or 341 ml. In Europe there are two standard can sizes - 500ml and 330mlTo answer the first part of your question: beer was originally sold in pints in the UK, but now must be sold in metric units by law. One pint is 568 ml , and so 500 is a suitable round number to use for the bottle and can size. Rounding down rather than up saves on raw materials for the container, allows retailers to charge the same price for a smaller quantity, and may reduce the amount people drink if people think in terms of drinking a number of cans or bottlesOnly on the continent. UK cans of lager like fosters are 440ml and bottles of grolsch, budweiser etc are 330. But a british real ale or a German wheat beer etc is 500mlWe also have 16oz bottles which I would imagine are akin to your 500ml. Typically, a pint is your standard draught size as well.
How do computers generate colours without reflection?
> How do computers generate colours without reflection? The standard computer screen these days is the LCD, or Liquid Crystal Diode. These screens use tiny crystals suspended in a somewhat fluid matrix which allows the crystals to be oriented using an electric field. In one orientation they allow light to pass through them while in another orientation they block light. You can observe this behavior with the classic digital watch or calculator on a sort of greyish green background. Those are simply liquid crystal cells which are made opaque to display numbers over a matte background. A modern LCD screen uses a white backlight which shines through a very fine grid of individual liquid crystal cells. Three cells are grouped together into a "pixel" with each cell being tinted the colors red, green, and blue. By varying how much the liquid crystals blocks light from each of the colored cells the combined color of the pixel unit can be adjusted. Combining many of the pixel units together allows an image to be formed. An older display technology was the CRT or cathode ray tubes. Instead of a white back light the red, green, and blue components of a pixel were activated by shining an electron beam into them which would cause them to fluoresce. Scanning this beam back and forth across the screen would build the image from the same kind of pixel groups. A newer display technology is OLED or organic light emitting diodes. These displays have the red, green, and blue components of the pixel groups composed of individually activated LEDs, a semiconductor light source using electroluminescence. In principle though they form an image in a similar way as the other displays.
Why do Magic the Gathering cards have different prices and why do they change so often?
I don't play Magic so I could be completely wrong, but from what I understand there are new sets of cards/rules released every 3 months or so. With each release the strength and value of all the existing cards change. Also, particular deck builds sometimes rise and fall in popularity. So if a certain deck becomes popular one month then unpopular, that will change the value for all the cards in the deck and the cards you play against it.
Why doesn't ground beef need to be cooked well done anymore?
The process of industrially grinding meat introduces bacteria, hence the need to cook it. The middle of steak hasn't been exposed to bacteria, so you don't need to cook it. Restaurants that serve burgers medium grind the meat themselves in sanitary conditions, so there is no need to cook it the entire way through.
How come you can tell someone's height without any point of reference?
Because we use the height of their head from chin to top as a means to then calculate roughly how many of their heads will stack up to their height. Depending on how many we count determines roughly how tall they are to us in the picture.
why aren't the arrow keys on the left of the keyboard?
Because the current keyboard layout was developed before the mouse, let alone before modern first-person shooters. Lots of people use computers for things other than games as well. To add, even if the direction keys *were* on the other side, most gamers would still use WSAD or something similar because of the number of extra keys in close proximityBecause more people are right handed so they put them there. Then games using the mouse also made it so wsad also works, so the right hand can be on the mouse
How are generations, Baby Boom, Lost, Gen X decided?
It is just pop culture. Gen X came from a Douglas Coupland book that provided a good description of people's attitude at the time. Since then less creative people have tried to use Gen Y, Gen Z, etc. Pepsi tried Generation Next. I have heard the internet generation, saw a camera commercial trying to make it the image generation. So far Millennials seems to be the most popular option. Edit: spelling of author's name.
How does plasma get under a blister?
The fluid under the blister isn't plasma, but a fluid called serum. It leaks in from neighboring tissues as a reaction to injured skin. Blood blisters form when subdermal tissues and blood vessels are damaged without piercing the skin.
What makes gravity 'go'?
We don't know yet. Science hasn't worked out the mechanism by which an increase in mass affects other objects. Yet. We know lots about how gravity behaves, obviously, but not enough about how it actually works. --- edit: this thread has turned into a farce, congrats for shit-posting all over the place /u/RobusEtCeleritas
Where did the southern stereotype of a "hick" or "redneck" come from/start
I read somewhere that the term 'Redneck' came from striking coal miners in Appalachian Mountains because they wore red bandanas around their necks as a sign of protest.
If the President of the United States wants to barbecue while in office, where does he do it?
Most likely the third floor promenade, outside the Sun Room [_URL_0_]There are a wide variety of recreational facilities on the White House grounds. And, if they didm;t have a BBQ, he could easily have one set upHe goes to a super sercret basement level underneat the whitehouse, this is also where they keep the still living unicorns and mermaids, the president likes his rare meats rare. But without joking, how about the backyard?
Why does drinking certain liquids change the colour of urine, but others have no affect?
Some chemicals are processed by your body and others pass right through unchanged. If the coloring in the drink does not get processed by your body, it will just be filtered out by your kidneys and will pass in your urine. If it does get processed by your body, regardless of the organ that processes it, then some of it will be used by your body, and what's left will pass in your urine or feces, but since it's been changed chemically it will not be the same color as it was.It depends on the type of coloring they used. Some are processed by the liver, some by the kidneys. The ones that get through the kidneys are what give the color to the urine.
Why do we decorate Christmas trees?
Decorating a pine tree with shiny ornaments isnt a Christian thing. It's a Pagan cultural thing to celebrate the winter solstice by decorating the home with evergreen clippings. When the Christians took over, they told the converting Pagans to keep on the traditions but just now it represents Christ.
Why does viewing porn tend to make people horny, but watching someone eat doesn't make people really hungry?
Clearly you've never watched *Diners, Drive-Ins, and Dives* late at night.Speak for yourself. Cooking shows are basically food porn and they make me hungry.Now what happens if you're watching porn with food? I sorely need a pizzagasm in my life.Watching people eat most certainly makes me hungry.
Why do we continue drinking alcohol, when it continually causes problems for everyone?
Prohibition caused even more problems so they had to give the booze back. Meanwhile, special interests have been pressuring the government to control alternative intoxicants to protect their various interests for about a century which has led to so many other prohibitions. A lot of these other substances have smaller fan bases, thus making it difficult to reverse existing bans. Drug prohibition has led to much greater problems than that of alcohol and will likely be reformed soon.Alcohol isn't ignored. In fact we made it illegal for more than a decade. In the thirteen years of prohibition the crime rate rose to a point where law enforcement couldn't get a handle on it. The vast majority of people who drink do so responsibly. Most people have a drink or two and rarely cross the line into drunkenness. Others, the minority, drink specifically to get drunk and it's these you see causing problems.
What happens to that eyelash that you couldn't get out of your eye?
Your eye is very good at removing foreign objects over time. Every time you blink you push fluid across your eye from both sides. Any bits of dust or solid objects get caught in the motion and eventually work their way to the point where your lids meet. At this point it either falls out or gets stuck to the end of one of the lids and gets wiped off. It might take some time for this process to happen, but it works pretty well. My wife always tries to pluck things out of her eye that is bothering her; doing the 'hold your eye open with on hand and try to get the object off by actually touching your eyeball'. That looks just as painful as having something in your eye, and her eye is always irritated and watery afterwards. I just stare at the ground and blink a bunch until it's gone, usually takes a couple seconds and no eyeball touching.
Why do downloads often stop at 99% before finishing?
Three possible reasons: **1. File integrity verification:** Your computer performs an operation on the data you downloaded and compares the result to a checksum. If answer and checksum do not match, the data is corrupt. This is how your computer tells if your file's data is a completely correct copy. **2. Uncompressing:** Some optimised downloaders or protocols have built-in compression. Compression reduces file size and helps with download duration. However, to extract the raw file from a compressed one, it needs to be decompressed first. The 1% is decompressing: you may notice the 1% takes longer for bigger files. **3. Virus scan:** Modern browsers also have in-built virus scanning. The process is similar to file integrity verification, but your computer actively looks and matches for malicious code checksums.
I am a college student, unemployed, uninsured and living at home. How will Obamacare affect me?
It will. Everyone will need an insurance. Don't worry, we alrzady have this in Europe. It works like a charm.
A modern GPU has Billions of Transistors, how do they not break at the slightest shake?
For the same reason you can shake a book, or drop it off a 10 story building, and none of the words come loose from the page. The transistors in a CPU are printed directly on the substrate.They're solid state - that means literally they are solids. There aren't lots of tiny separate bits, it's all produced on a single crystal of silicon. The individual features are tiny, which also means they're very light weight so there's almost no mass to cause problems when you thump it. This robustness is *one* of the original drives behind solid state electronics - being able to make something which would survive being fired out of a gun or into missiles.I think you may have a fundamental misunderstanding of what a transistor is. Transistors have no moving parts, are really really tiny and made of very tough material. In many cases, they are smaller than the cells in your body All a transistor does is either let current through, or resist it Since all math can be done in binary transistors can do any calculation that exists [also not totally true, you can only do calculations who's units don't exceed the number of transistors, but even 16 transistors can have 65,536 unique values, so it's sorta a moot point when dealing with millions] How do they do it? You start with a wafer made of mostly silicone and you lase etch paths into it then wash it in a solution that bonds with the silicone to chemically "print" the transistors. They don't break because like anything it doesn't just break I like to tell people that when I entered the industry, the discussion in popular culture was that the features on a microchip were "as small as a human hair" Now we can effectively take that same human hair, slice it, and print many thousands of transistors on the end of it. ', "[Here] is a video by the guys who make most of AMD's chips about how processors are made.
Why does fire always point up?
Hot air rises because it is less dense than cold air . The air in a flame is hotter than the surrounding air, so tries to rise. The flame rises with it until it cools enough to no longer glow. Then, it is just hot air rising some more!
Why doesn't solid material, when it breaks simply connect back together? What kept it together that is gone now?
As soon as you break molecules apart they immediately want to stick to something, and they'll take anything that fits. For example diamonds are actually covered with a layer of hydrogen atoms, as soon as you break diamond apart the parts will immediately cover themselves with hydrogen from the air . With metals it's generally oxygen that sticks to the surface . This means that if you break something apart and try to fit it back together the molecules have already stuck to other things so don't want to stick back together, like how when scotch tape gets covered in fluff it doesn't stick any more. As other posters have mentioned if you break things apart in a perfect vacuum because there are no other molecules around you can actually push the parts back together and they'll stick.I believe nobody has stated this: When you break some something, you are breaking bonds between atoms--something on the order of a sextillion bonds. In order to put them back together, you would need to line up every bond exactly as it was before, which is basically impossible.I am going to leave this here: _URL_0_ This question was asked sometime ago, but I can't find it, and I don't remember the explanation; I only remember about this. I'm now going to let someone more knowledgeable than me explain it to you.
How are sinkholes repaired?
First they try to block off the route by which material was being eroded away , and if possible, block the entry of water flow into the area. Then they literally just fill the hole with stuff, and cover it up. [Details here.]
What exactly happens to an cut apple when we leave it on open?
Oxygen gas starts to attack the exposed surface, cutting up proteins and fibers. This turns the exposed surface brown and soft over time. Although we need oxygen to live, it is a fairly corrosive chemical that will chemically attack a wide array of vulnerable materials.
How do car keys wirelessly lock/unlock only your car?
They transmit a digital code which only your car responds to. They're actually rather more clever than that, because you could record this code and play it back to open a car that isn't yours - codegrabbing - so they change the code each time but in a sequence which the keyfob and the car know but which isn't obvious to others. The sensitivity is because the transmitter is shouting quite loud but only on a very narrow frequency. It doesn't do it very often or for very long, so the battery lasts a long time.
What exactly is a neutrino?
It's a kind of fundamental particle. Neutrinos are very small, even compared to most other fundamental particles. They have no electrical charge, so they don't *do* much—they kind of just speed through the universe . Every so often one of them will manage to get close enough to the nucleus of an atom that they can interact a bit, and that gives off some light we can detect.
Why is it funny when people fall over?
There is no universally accepted explanation of the role of humour and how it works. One possibility, however, is that humour is one of the possible reactions to mental stress caused by contradictions. When something is troubling, confusing, or strange, it causes some tension. This may lead to fear, anger or other emotions, but when it turns out that there is no danger and nothing to worry about, we laugh as a way of expressing relief. Humour makes use of that by creating a situation where there is some contradiction, tension or weirdness and then resolving it in a way that one does not see coming . This is why humour is usually based on either something absurd, or on someone's misery that we can distance ourselves from. Both create a situation where there is something that might worry us, but we are shown that there is no reason to *personally* worry. People falling over can be either. It is a situation where someone is hurt, but if the situation is otherwise harmless , it is funny. Our brain knows there is no danger, so it reacts by causing us to laugh - to show that we are relaxed to other people, that there is no reason to be afraid or concerned for the person who fell. Notice that we don't usually laugh when someone falls over and dies or gets badly hurt . The other reason, contradiction and absurd, is usually by contrasting the fall with something that doesn't "fit" - for example, a very serious and important-acting person falls down, so our mental idea of the person being serious and dignified is contrasted with us seeing them in a very undignified situation. Or in another situation - a person may fall unexpectedly, so the fall in circumstances we didn't expect causes a situation that also feels contradictory. Or in yet another scenario, the fall looks so silly and out-of-place that it creates a similar feeling of being absurd.
Why can't people just run away from a wildfire?
"Wildfires have a rapid forward rate of spread when burning through dense, uninterrupted fuels. They can move as fast as 10.8 kilometres per hour in forests and 22 kilometres per hour in grasslands." Thats too fast to maintain for any reasonable amount of time. The fire can simply catch up with you. Also it changes directions very quicly and could end up encircling you. Running the other direction might simply happen too late. Your basically underestimating how confusing a wildfire can be and how fast it moves. They are massive fires covering large areas of land, its not as easy as outrunning an oversized campfire.
Why does my breath smell so bad in the mornings?
You're dehydrated, and mouth bacteria thrive in dryness. When you go to sleep, your salivary glands stop moistening your mouth, and these drier conditions allow bacteria to multiply, and in turn, start crapping everywhere. This is also why Mouthwash will make your breath smell nice at first, but make it smell like ass later: all common types of mouthwash uses Alcohol to bind the its chemicals together, which will rapidly dry out your mouth on contact. Sure, it kills the germs, but it also sets the stage for them to make a whopping comeback.Tiny beasts are in your mouth, **FEASTING** on whatever is in your wet face hole. Then they poo and fart in your mouth.> Say you have a puppy who loves to shit all over your house. During the day, you're able to clean up after the puppy so the shit doesn't fester in any one place too long and emit its odor. At night, you're less attentive to the puppy so he's able to freely produce more fresh piles which will accumulate and sit longer. The result is one stinky house when you wake up. > Puppy = bacteriaHouse = your mouth _URL_0_
Why are males naturally attractive without make-up?
Because we are conditioned to believe that girls need make up to be attractive, not to mention that women have used make up for a long time creating a "norm"', "They aren't. Most men would look better with a bit of makeup. It's just not our cultural norm.
So if Einsteins theory of GR toppled Newton's theory of gravity and its effect on matter, making it seem almost incorrect, why is it still being taught at school as basic fundamental physics?
Newton's theory was a very very good approximation. And it still is. It's not like the laws of physics have changed since then. General Relativity is probably wrong too. But it's an even better approximation than Newton's theory is. It's also more complicated, so if you don't need it then using it is a waste of time.
Why do people (Soldiers, Police, Government Agents) always seem to duck when approaching a helicopter?
Because the rotor disc of a helicopter isn't fixed. How a helicopter maneuvers in the fore and aft, left and right directions is by tilting that disc in the direction you want to travel. Most helicopter rotors have a wide range of motion. With the helicopter on the ground, and the collective neutral you can articulate the disc down to head chopping height pretty easily. This is why you never approach a 'turning' helicopter without the pilot signalling, so they have positive control of the cyclic in a neutral position. Actually, depending on the terrain, you may have to tilt the disc away from loading and unloading passengers so they can safely get in and out. A good gust can tilt the disc in random directions if you aren't actively on the cyclic, which you always should be if your bird is turning. Source: Was AH-1W/UH-1N mechanic in the Marines for 5 years, worked on turning helicopters a lot. I also have my private helicopter license in the US. EDIT: I'll post a vid if I can find it. 2- Can't find it. it was a video of a Huey on the ground with blades turning, and the pilot moved the disc throughout it's full range of motion forward, back, left, and right. The tips get pretty low. 3- As compensation for my failure here's a cool ass video. If you're into helos anyway. [Cobra and Huey flight deck ops]
Why do raptors put up with harassment from small territorial birds?
Because it's hard to win a fight 1 vs. many. Especially in the air. All the smaller birds need to do is not be near the beak or talons to avoid getting killed. Meanwhile, the raptor needs to avoid all of the smaller birds: birds which are coming in from possibly every direction. They aren't going to be able to kill it, but if they can sufficiently injure it, the fight isn't worth the meal.
The Google stock drop. Why it happened, what it means, and what are the consequences.
Google failed to meet expectations for how much money they were going to earn this quarter. Now the stock has dropped. This could mean two things: 1. If this trend continues and they make even less money next quarter, you'd have a problem. Especially if you bought stock 2. This is a buying opportunity, and when they post better results next quarter, you can make some money.
Why turbulence on an airplane, even the bigger bumps, aren't something to worry about while flying on an airplane
So long as you're going to a sufficient speed, the wings will create a pressure differential buoying you up. The only danger is if: 1. the turbulence is so strong that it compromises the integrity of the craft 2. the air pressure drops for such a height that the plan keeps falling for 1000s of feet and is unable to regain enough horizontal velocity to create lift 3. you fly into such a strong headwind that the plane isn't flying fast enough and stalls (also not going to "just happen" unless you're flying into a hurricane.
What causes someone to lose consciousness when thinking about or seeing blood?
Vasovagal syncope. Your body, well technically your brain, over reacts to a trigger like a needle or blood. It causes your blood pressure to drop and that's what causes you to loose consciousness. Edit: read this _URL_0_
Why have people freaked out so much that Valve+Bethesda wanted to take 75% of mod revenue, but not that Valve takes 30% from an indie game that someone entirely made themselves?
Honestly, part of it is mass hysteria and part of it is this is the first time a lot of otherwise ignorant people have stopped and thought about the fairness of how Steam goes abouts its business. Is 30% worth the publicity given by having it on a platform everyone uses? That is the real questionBecause Valve taking 30% of an indie game still leaves 70% for the creator. For a mod, Valve takes 30% and then Bethesda takes another 45%, leaving the modder with that last 25%. Sell an indie game for $10, the creator gets $7. Sell a mod for $10, the creator gets $2.50.
Why is Planned Parenthood allowed to endorse candidates for political office?
The political activities aren't handled by PP itself, but by an affiliated 5014 organization that is permitted to participate in political advocacy. The organization doing the political work isn't the organization getting the tax funding.
ELI 5: why does my iPhone get slower each time a new iPhone or software update comes out?
Because each new update uses more and more power that your phone does not have. They do this A: to advance technology and compete with other companies and B: to make you feel like your phone is slow so you go buy another
. Why are batteries put into devices facing opposite directions? Why aren't they facing the same direction?
It's easier to make a series circuit when the opposite poles are right next to each other. Less circuitry required.
What's inside public commercial electric vehicle DC fast charger (50kW < ) that makes it cost $30k or more?
A rectifier and DC power supply rated for 50+KW. That's a rather high power piece of kit, you can't make it with Radio Shack diodes. That device consumes twice the power needed to trip the mains breaker on your house.
How did the first person to interact with a new language go about learning / interpreting that language?
To put it simply I imagine it happened through immersion like [this scene from The 13th Warrior] or the way it's portrayed in any other movie: pick up object and say what it is slowly, then the person whose language you're struggling to learn says their word for it, then mimic what they said, repeat until fluent.
How cutting/slicing works atomically?
If you split an atom, you'd get a fission bomb. . Interestingly enough though, Atom comes from the Greek meaning 'impossible to cut' because of people thinking about this question in exactly the same manner. Easy answer: There are two kinds of cutting, sharp and serrated cuts. Sharp are pure pressure and split the object into two masses; while serrated cuts by removing a lot of matter and creating a gap. that's the best I can do.
why no pork in fast food?
Just show up for breakfast. In the US, pork absolutely dominates the breakfast meat market. Just go to your favorite fast food restaurant, and see how many pork options there are at breakfast. You'll find few, if any, chicken or beef options.
how do bottle return centers make money when wherever you go, you only get 5 cents for them?
They don't. Customers pay the 5 cent deposit when they buy the bottled/canned beverage in the first place. When they return the bottles, they're getting their deposit back. Also, it's the law.
Why do gummy candies become stale?
The same reason anything else becomes stale. It starts to break down chemically. All the little bonds holding something together will start to break down. Typically, there is something breaking down those bonds. It's sometimes bacteria, and sometimes sunlight. In the case of gummies, what happens is bacteria start to eat the sugar in the gummies, and produce their own waste. As they eat the sugar, they are also breaking down the bonds around them, either through eating them, or putting out waste that chemically breaks those bonds. What you get, in effect, is a gummy that tastes stale because the sugar has been eaten, and the waste products which are present taste different. PS: waste products aren't always bad. Alcohol is technically a waste product, but one that everyone enjoys.
Why do a movie theater employees enter a movie a few minutes after it begins with a clip board, stands to the side for a few minutes, then leaves again?
It may actually be the projectionist, I used to work in projection and we would often nip into the screen to check the audio as the feature starts. Edit: I forgot, we had loads of timePerhaps just to take note of how many seats are filled in proportion to ticket sales.
What are these "magic numbers" that people are talking about for post-season baseball?
The team in each division with the best record is guaranteed a spot in the playoffs, so if a team can guarantee that they'll finish with the best record before the season's over, they 've already clinched their spot. Magic numbers tell us how far away they are from hitting that point where they mathematically can't be eliminated. Today's a good example, because I'm going to see the Dodgers hopefully clinch the division tonight. Right now they have 97 wins, and the next best team in their division have 88. Both teams have 9 games left to go in their season. So if the Diamondbacks won every single game, they 'd hit 97 wins. But, if the Dodgers win even 1 game and get to 98, then the Diamondbacks can't catch up no matter what. So the "Magic Number" is 1. If the Dodgers win 1 game OR the Diamondbacks lose 1 game, then the division is settled. The magic number is the total number of wins by the leading team + losses by the trailing team that would clinch the division. If we look at the NL Central for another example, the magic number today is 6. So any combination of wins by the Cubs and losses by the Brewers would seal the division for the Cubs - any less than that and the teams will either tie or the Brewers will overtake them and win their divisionIf a team has a "magic number" for winning their division, it means that the when the sum of wins by them and losses by the team in second place for the division exceeds this "magic number" it will be mathematically impossible for the second place team to pass them within the number of games remaining in the season. Once you're 5 games ahead with 4 games to play you 've "clinched", because no combination of outcomes among the remaining games will lead to someone beating you.
"Save water, Save life?." How my saving little bit of water going to help, people in drought stricken area?
It isn't. If you live in an area with abundant water, you can use as much as you like. But you might not realize that you do live in an area without abundant water. Scientists and government officials monitor the 'water table', or how far you have to dig down to find water underground. In a lot of places, the water table has been slowly lowering for decades, and in these places there is a potential for future problems. If your community has been the subject of a state-sponsored campaign to reduce water use, you're probably in one of those areas where there's water now, but current use is slowly depleting the supply. By reducing your water use, you're going to help people in the drought-stricken area of your hometown in the future.
Do we have enough food to feed everyone in the world?
There are a lot of different reasons. One is we can't get there in time. By the time the food arrives to its destination, it would have already expired. One is that some areas of the world just can't grow crops too well or are not growing enough to feed everyone. There is also the issue of money. It costs money to buy crops and the equipment needed to turn it to food. If you don't have enough money, then you can't grow what your country needs.
Why is Russia being considered a major threat to the west today?
Russia remains very large and very powerful and a leadership that, as examplified by the incidents in Ukraine, is willing to use its military to expand and won't submit to international pressure. It's a very dangerous combination to western nations.Because the old heads are getting senile and their early memories of the USSR are becoming the strongest. To them it feels like the USSR is re-emerging, with Stalin on board.
Why do some people feel carsickness? How does it occur?
Motion Sickness: Inner Ear: Guys, we're moving! Eyes: No, we're not. Skin: I'm not feeling any air motion. Inner Ear: Yes, we are. Eyes: You're a moron; we're not moving. Inner Ear: What are you, blind? We're totally moving. Eyes: WTF dude, we're clearly not moving. Inner Ear: YES, WE ARE. Eyes: FUCK YOU. NO WE'RE NOT! Inner Ear: Fite me. Eyes: Come at me, bro. Stomach: Guys please stop
Why dont cameras with circular lenses take circular photos?
Because the sensor is rectangular, the fact that the lens is due to manufacturing costs, the sensor inside is what determines the aspect ratio of the image, usually 4:3 or 3:2.Very simply because it's not the lens that's actually taking the picture. On old film cameras it was the rectangular strip of [35mm] film. On digital cameras, it's a rectangular [~~CCD~~] [CMOS]
how to use brush my teeth without getting the toothpaste+saliva dripping all over the place.
I was going to say "use less toothpaste" because that worked for me but I see you're already doing it, so I don't know. You might be salivating a lot. For anyone else who might have the same problem: every toothpaste ad will make you think you need [this much], but that'll foam very fast and you'll have to spit half of it. [This] is more than enoughIf you wet your tooth brush beforehand, you only need a small pea sized amount. Then just keep your mouth closed, amd spit when your mouth is too full. Like anything that foams, you dont need a shitton of lather for it to be effectiveKeep your mouth closed as best you can. Lean over the sink so nothing ends up on the floor or on your clothesClose your mouth/try and seal your mouth around the end. Lean over the sink so it doesnt drip down your front.
How is it cheaper to lobby a foreign government, permit and build 1400 miles of pipeline and assume risk and liability of it than for Canada to refine their own crude?
Because Canada has little to no refining capacity as it is. Also, the tar sands where they extract their oil is in Northern Alberta which is pretty much in the middle of nowhere. For Canada to develop their capacity they would need to build their own pipeline to a coast and then build their own refineries. So why would Canada want to spend billions of dollars to develop their own infrastructure when they can get their neighbors to pay for a pipeline to the most advanced refineries in the world? All the while Canada rakes in money hand-over-fist ', "Refineries are not cheap to build and it may be in a location where the operating and distribution costs outweigh piping to somewhere where processing and distribution are cheaper/easier. I wouldn't be surprised if the refinery would cost as much or more than the pipeline.
Why do humans have to chew their food so thoroughly when many other animals can just gulp down their dinner?
Carnivores vs omnivores/herbivores. Cows not only chew more than we do, they regurgitate and chew their food *again*. Vegetable matter requires mastication to increase surface area and release nutrients. Protein and fat, cartilage, tendon, etc. don't have cell walls so they basically dissolve in the acidic environment of the stomach. Bacteria in the intestines help digest as well, for all eaters.It's not as important as we are led to believe. This dude Horace Fletcher around 1913 was obsessed with chewing and claimed that if you chewed your food a lot you can get more nutrients out. While there is some evidence for this in regards to tough vegetative matter, most of the food we eat just needs to be chewed enough to be swallowed comfortably. Fletcher coined the phase "Nature will castigate those whose do not masticate."
Do Islamic women also believe in the notion of having 72 virgins in heaven?
The whole "72 virgins" thing is not necessarily a mainstream Muslim belief. It comes from something that Muhammad allegedly said but the evidence that he said it isn't always judged to be strong, and some believe that it is a mistranslation . However, terrorists tend not to be the most scholarly types and it's the type of thing you would tell people to get them to blow themselves up. There have been many female Muslim suicide bombers so one has to assume it's not totally lost on them. However accurate the 72 virgins trope may be, it does reflect a real Qur\'anic concept called the Houris, who are essentially angels that live in paradise and are, shall we say, companions to Muslims in heaven . It is implied that both men and women will be granted their company, but most references to them in the Qur\'an and by Islamic scholars refer to them in the feminine tense . Personally I 'd chalk this up to 7th-century sexism since all the writings were done by men, but interpret it how you willThat's still being disputed among those of the Islamic faith, with some attributing it to a bad translation. Shia Islam doesn't even include the controversial hadith that mentions 72 "virgins".
Is Antarctica stuck at the south pole?
The antartic tectonic plate is generally rotating slightly towards the east and moving towards the Atlantic Ocean. I don't know the answer to your mantle convection question. However it is possible that eventually antartica could move between Africa and South America, becoming temperate again. Link below is to a recent paper on the Bement of the antartic plate. It's mostly dry but has some interesting plots of velocities of the different parts of the plate as well as those surrounding antartic. _URL_0_
How come solid butter is white, and melted butter is yellow?
Most solid butters I've seen have been yellow. But I believe that is because they add yellow colouring to it", 'Most solid butter is yellow. What determines how yellow is the breed of cow used, and the feed that they have. If they are grass fed they will tend to have darker yellow butter .
What was so controversial about the Reagan administration?
He backed governments in Central America that did some bad things. They killed men, women, and children and buried them in mass graves. Reagan denied that such graves existed. Later it turned out they did existI'm no expert on the topic, but Reagan was a proponent of what he called "Trickle down economics" or "Reagonomics." Basically, the idea was that if the government drastically cut taxes on the rich, they would have more money to pay more workers and increase worker wages. Thus, the money would trickle down from the top to the bottom. Unfortunately, public debt through this time more than doubled. However, many people still put forth this economic strategy, even though it was a decided failure. I'm sure there is someone here who can give you a more detailed explanation, but that's the basics.
The logic behind the phrase "I'll give you 3 guesses and the first two dont count?"
It's just an expression. It's meant to imply that the answer is so obvious that you'll only need one guess to get it right.
What exactly causes animals to sometimes go berserk on humans they have bonded with their whole life?
One of the big differences between "domesticated" and "wild" animals that we 've bred into them is acceptance of the social order and relationships. For example dogs accept that you are the top dog when they are small, and you stay the top dog. Wolves don't have that bred into/out of them, so they will occasionally challenge your position or test themselves against it, and unlike an actual animal you aren't exactly going to be able to stand up to that challenge. This is doubly true for normally solitary animals; a tiger doesn't usually share its range easily with other tigers, so you trying to live in close contact with it is just asking for a challenge or conflict.
Why is keeping a cell phone in your pocket potentially harmful you?
Short Version: It's not Long Version: It's nooooooooooooooooooooooooooooooot. ELI5 Version: Your cellphone isn't harmful in the same way the skin doesn't melt off your face every time you microwave a burrito. The radiation isn't strong enough to be harmful. Your average ejaculate contains MILLIONS of sperm cells. Even if the radiation kills a couple, it won't make any difference. In a similar way, you are technically being burned to death every time you step outside by the suns radiation - It's just not strong enough to be noticeable or cause any damage for the most part.Lol this is a huge myth. It really is not in any way harmful.
Why can't water catch on fire?
the same reason carbon dioxide can't catch on fire: it's already fully burned. the oxygen in water is already joined to the two hydrogen atoms, and this is a very stable situation for the oxygen. so there's no free oxygen, which is one of the things you have to have to have a fire.Water does not burn because it is at a low point in thermodynamic energy because its bonds are very strong. Things that burn, like gasoline, have weaker bonds . These weaker bonds break during oxidation and stronger bonds form, which makes the CO2 and H2O molecules more stable. The extra energy is released and we feel some of that as heat. Gasoline + O2 - > CO2 + H2O + energy', "It can react violently under some circumstances, but l'll skip those. Fire is the result of atoms and their electron shells trying to find lower energy states. The bonds between Oxygen and Hydrogen are already very low energy, and thus are generally quite happy where they are and don't want to react with anyone else. Therefore, it will not burn .
Why do skunks and cannabis seem to have a similar smell?
The chemicals that "give off" the smell you are noticing belong to a group called "terpenes". Various terpenes are found all throughout nature and are the reason you are reminded of one item's scent by the other. I would venture a guess that a skunk and "Skunk" share a common or similar terpene. Limonene, for example, is common to both Cannabis and the ordinary orange peel. Source: the last time this was asked
Why is it illegal to sell someone a counterfeit version of a controlled substance, or to sell someone what they think is illegal, but isn't?
Absolutely illegal, in fact it's treated as if they were real. Extasy for example does not even mean pure mdma, it can and regularly is pure meth, or caffeine, in either situation you can get the same punishment.
Besides being catchy, why do songs get stuck in our heads?
I've been told that songs we can relate to are ones we tend to favor. If we can think of ourselves as the subject in a song, we have a tendency to like it more.
How does Wi-Fi on an airplane work?
Satellite network engineer here. The wi-fi portion of the link is just like in your home. 2.4ghz / 5ghz antenna /repeaters provide signal to your phone or device. The satellite side is actually pretty exotic. Obviously because you are in motion the hardware on the plane needs to track the satellite in orbit. With receive only systems your margin of error is a lot better. . Since this is 2 way communications the satellite antenna on the plane needs to send signal as well as receive, this requires a much more accurate tracking antenna. What was linked below is called a phased array antenna system. It doesn't actually use motors to track the antenna or "move". To explain a phased array simply it uses electricity and other electromagnetic forces to change the radioactive nature of areas of the antenna, moving the "direction" the antenna is pointing without actually physically moving. This allows the antenna to be much flatter than a typical auto point satellite antenna. Two Way Satellite Auto-Point Antenna_URL_0_ Phased Array _URL_1_ Obviously better for aerodynamics!', "Either by using satellites, [here] you can see one example of what an satellite antenna can look like, or an [air-to-ground] cellular network that's built to provide internet connectivity for airplanes.
What would happen if all the members of the British Royal Family were killed and there was no heir to the throne
The line of succession is pretty fucking long. If they were all wiped out, we'd have far bigger things to worry about than who gets to rule Britain, we'd be dealing with a huge cataclysm.The British Royal family has the line of succession calculated out several hundred spots. For something to happen to kill all of the people on that list at once would mean that there is some kind of global catastrophe happening and there would likely no longer be a UK for them to lead.It would be quite a massacre, there are about 5000 descendants of Sophia of Hanover alive today and scattered around Europe . If they're all dead then we're probably dealing with a zombie apocalypse or something. If they did all die then Parliament could look back up her family tree, find a surviving relative and modify the rules of succession, but we might also take it as a hint to give a republic a try.[Here is a list of the first 5763 candidates]. Apparently it has been worked out.Well technically there's always another heir unless there's some sort of massive wiping out of Europe and Europeans. The way it goes is that if a sovereign dies without issue you go up a generation and find the next heir there. Rinse and repeat until the throne is occupied. If it actually happened I'm sure the royal archives and plenty of others could say offhand who the next in line for the throne not currently holding a royal title is, and it may well be they'd be granted the crown. It may also be that, in light of such a crises, the UK/Commonwealth would decide to give up the monarchy entirely seeing as the institution largely died in a literal sense.
why does pouring a beer or soda into a tilted glass produce less bubbles (or head) than pouring straight into a glass?
Ahem. Avast ye! Yer not alone in askin', and kind strangers have explained: 1. [ELI5: Why does tilting a glass while pouring beer reduce the foam at the top? ] ^1. [ELI5: Why does beer foam when you pour it directly into a glass from a pitcher/fraught/can but when you pour it into a tilted glass there is little to no foam ] ^1. [ELI5:Why does beer foam less when poured into a tilted glass? ] ^1. [ELI5: Why does tilting a glass when pouring Beer prevent an overflow of foam? ] ^1. [How does tilting a pint glass have an effect on the amount of head on the beer? ] ^1. [ELI5: Why does pouring beer into a glass on an angle produce less head? ] ^1. [ELI5: how come pouring a beer with my glass tilted cuts down on the amount of foam but doing the same with a soda doesn't change the amount of fizz? ] ^1. [ELI5: Why does holding the glass at an angle stops poured beer/soda from foaming? ] ^1. [ELI5: Why does tilting your cup to the side reduce the amount of head when pouring a beer? ] ^
How do CD players read CDs?
With a narrow laser beam pointed at the cd. If the light reflects back to the sensor, it's a 1, if the light gets reflected at a different angle away from the sensor, it's a 0.CDs have tiny microscopic pits in them that correspond to either a 0 or 1 in binary code. The CD player shoots a narrowly focused laser at the CD, the light from the laser bounces off the CD and into a sensor. When the laser passes over a pit in the CD it bounces in a different direction and misses the sensor. When the light sensor reads light or no light it registers a 0 or 1.
Why do America and the UK not use the same "main" painkiller? Aspirin vs Paracetamol
In the US Paracetamol is called Acetaminophen, which goes by the brand name Tylenol. Tylenol is in fact one of the top pain killers used. In addition to Acetaminophen, Ibuprofen , and Acetilsalicylic Acid are probably the most common painkillers in North AmericaWhen people say "take 2 aspirin and call me in the morning", it's because the phrase has become a cliche. It's an outdated saying that doesn't reflect the products people actually use. Aspirin isn't that widely used in the US and much of what's being sold these days is being used for it's benefits to heart health . Paracetamol is more commonly used than aspirin. [A quick look for marketshare info] shows that the top brands are Advil , Aleve , Tylenol and then Bayer . While that doesn't cover specifics of the generics that people buy, it's reasonable to assume consumer preferences are similar thereBesides what other people said, it should be noted that everyone in the US calls acetaminophen/paracetamol "Tylenol". Tylenol still is an actual copyrighted brand, whereas aspirin is a generic word. You said that you're going based off of movies, and films generally try to avoid using brand names unless it's product placementAspirin was really popular decades ago, and old people still use it or refer to it, even when they use other products. Acetaminophen probably has the worst set of side effects, and in personal experience is the least effective though, but different people seem to have different effectsLet’s clarify the language: Painkillers refer to prescription narcotics. Pain-relievers are OTC like Tylenol.
Why is it that controlling your breathing helps to moderate pain?
It isn't the breathing, exactly. It's the focus. Focus on your breathing, it helps distract from focusing on your pain. I think it also helps keep you from hyperventilating and going into shock.A large percentage of pain is mental -- how your brain is responding to the urgent signals from your sensory neurons. Focusing on your breathing is a mild form of meditation, which calms your mind and, as a side effect, softens emergency responses such as pain and terror and anxiety.
when it's hot out, why doesn't corn start turning into popcorn?
Popcorn pops because corn kernels contain a small amount of water. When the water is heated enough to boil, steam is produced, which increases the pressure within the kernel. When the pressure difference is high enough to rupture the kernel, it pops. Water boils at 100 Celsius at one atmosphere of pressure. Nowhere in the world where corn is grown does it even get close to 100 Celsius.
What causes bad morning breath?
Bacteria have had all night to multiply in your mouth without any water or food to wash away/dislodge them. Your mouth also dries out, especially if you breathe through your mouth, which further worsens it.
Why do toenails grow much slower than fingernails?
Two theories: Most of it has to do with blood supply. Your fingertips get more blood than your toes . More blood means that the portion that produces the nail gets more nutrients so that it can produce more nail. This is also why in the summer, the higher temperatures makes your vessels swell slightly so nail growth is increased. Secondly, there is a "trauma" theory. Your dominant hand's nails grow faster than the nails on the other hand because the dominant hand is under more stress and strain. More impact on the nail makes your body think that the nail is in use so it regrows faster. Your toes are usually not under any of this "trauma" when they are covered in shoes and socks so they end up growing slowersunlight promotes nail growth. most people keep their toenails in shoes and their finger nails exposed to the sun.
How does pain radiate from one part of the body to another?
Not every organ we have is innervated directly though the central nervous system, meaning it can't send pain signals to the brain. For example, your diaphragm doesn't have a way to make your brain realize there's something wrong, so it sends the the pain signal through the next branch it's connected to so the brain can receive the information. when your diaphragm hurts, you feel it in the top of your shoulders because the nerve patterns of those areas of your body are close. It's very confusing, and people often dismiss important pain signals because they think they are unrelated to the problem at hand.Back in time we evolved from segmented worm-like creatures. Each segment had it's own nerves . Our spinal arrangment is a remnant of this. As we evolved more specialized body parts, nerves from certain segments became the ones that connected to different systems, sometimes quite remote from each other. Pain in one part served by a particular nerve system can "cross-talk" to related connections.
What causes a cowlick?
It more so depends on your hair follicle. This is what determines which way the hair grows out of the scalp. So essentially cowlicks are tufts of hair where their follicles cause them to grow in such a fashion. Also, considering this is an internal thing, we can't change our follicles, so you can't really "fix" a cowlick. People will tell you you can train your hair, which is true, but only to a certain extent. Truly the only thing you can do is work with what you got and get some appropriate products and a knowledgeable hair dresser to help you work around it. I can talk more about your scalp if that didn't answer the question the extent to which you were looking. But that's the quick answer. TL:DR Your Hair follicles determine the growth direction of your hair which sometimes results in cowlicks.Believe it or not, it's a consequence of the [hairy ball theorem.]
How does digital clock work?
There is a special elements called a quartz. It is the same thing that beach sand is made of. It has a special property of converting different Energies. With pressure it turns into heat, with light it splits light, and with electricity it creates a vibration. Some quartz crystals make a very stable vibration. Imagine one of these quartz could do 1000 times the second perfectly. We learned how to measure that has had to turn that into a clock. You may be familiar with counting seconds as one one thousand or one alligator. Running electricity through a piece of quartz crystal splits one second into to one thousand beats per second. By making a device that can separate every 1000 beats we can create a stable clockTypical household digital clocks do not rely on quartz crystals for timekeeping. These clocks sample the AC voltage from the wall outlet. The frequency of this voltage is very well controlled at 50 or 60 Hz The clock measures the passage of time by counting how many times the electricity cycles. After 50 or 60 cycles, one second has gone by and the clock updates the display accordingly. The power distribution company strives to keep the frequency correct since varying frequency has a negative impact on the performance of the grid. The clock is incredibly accurate because of this. Interestingly, old style electric motor clocks also exhibited high accuracy for the same reason. In this case, though, a synchronous motor is used that spins once for each voltage cycle. 50 or 60 revolutions then equated to one second, so time could be mechanically displayed very accurately.
Why is it substantially easier for me to drum my fingers from pinkie to thumb than thumb to pinkie?
Probably just because you haven't practised doing it one way but do practice the other way because you do it out of habit. I've never really thought can do it both ways without a problem, and if you tried for about a week you probably would be able to as well. I think this because I remember what it was like learning to play the guitar. When you begin playing moving your fingers in the correct way is incredibly difficult and it feels like you would never be able to do it, but then all of a sudden one day you realise that you can play all kinds of things without looking/thinking even though you once thought your fingers couldn't move like that.