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Why do humans like pillows to support their heads when they sleep? | Not a scientific answer but I think it's because we have the option. My dog sleeps with a pillow. And animals in the wild often use each other as pillows and warmth. |
Why can't we just surgically remove all the fat in a morbidly obese person in addition to the gastric bypass surgery? | Its an extremely traumatic process on a large scale, liposuction effective tears out adipose cells. Those cells have capillaries supplying blood flow / oxygen, which on a large scale damage to these may lead to cardiovascular events. Plus the risk of infection, cardiac arrest, all the normal things that go with surgery... |
Why has virtually every human civilisation created a religion? | Humans are very good at seeing patterns, actually most animals are, look up BF Skinner's experiments with superstitious pigeon, our brains are so wired to see patterns that we make them up when they aren't there. From superstition it's really just a matter of a bit of imagination to come up with the concepts of spirits... |
Why do I go blind for a moment when I stand up too fast? | It's called Vasovagal Syncope. I get it when I'm skinny . Basically, your body is not good enough at restricting the blood vessels in your legs, so all your blood rushes to your lower half when you stand . It's not dangerous, except if you fall, so stand up slowly and be careful. |
Why did animals evolve to be less scary? | > I would think they'd try to become something better, not worse. Scary does not mean better. Being able to scare other animals might help with survival, or it might not. All that matters is staying alive until you can make babies, and if being scary doesn't help then a species probably won't evolve in that direction. ... |
Can someone explain Chaos Theory to me (like I'm 5)? | In addition to what PickyPanda is saying, it's important to note that there is a big difference between a chaotic system and a random system. Both are unpredictable, but a chaotic system follows a set of rules that is perfectly understood, but is simply too sensitive to small changes in the initial conditions. A random... |
why can't you have bug free code? | you can technically proof correctness of part of software with some math magic but what scope exactly you can proof and what the needed tools are I don't know . However I imagine that this would be infeasible from an economical standpoint. So mostly only testing is done. And with testing you can only ever guarantee tha... |
Elon Musk's belief that we are likely computer simulations | I think this one would be easy enough to google and easily comprehend, I'll link a video that I watched and thought was really good in a sec. Edit: Link - _URL_0_ |
How do restaurants make money off of $2.50 free refills 16oz sodas? Also how much would I have to drink to make them lose money? | As has been pointed out you would need to drink just under 600 liters of soda to his break even on a home soda machine. However Those 600 liters of soda would contain 20kg of sugar , which is 80,000 callories. That means, the rest of your diet staying the same, you will put on 22 pounds of fat in the process of getting... |
Why does getting your back rubbed/scratched/shaved feel so good? | I think it's kind of similar to how dogs love having their belly's scratched. It's a place we're unable to reach easily, and having someone scratch it for us can relive a lot of the itching we didn't know was there. That's my guess, either way, a good back scratch is amazing. |
How is suicide considered "selfish"? | I am the son of a father who committed suicide when I was 13 and my sister was 17. I fell into deep depression, began to question everything about our already shaky father-son relationship. I ended up almost dropping out of school, barely pulling it together before I joined a martial art school, and picked up an intere... |
Why is E85 85% ethanol? | Many reasons: * The higher the ethanol content, the harder the car is to start in the winter. * Ethanol makes the engine run hotter, which decreases engine life. 85% is a reasonable compromize. * Ethanol is problematic, in that it dissolves gaskets. * Ethanol also dissolves oil residue gunk in places where it isn't a p... |
Why is inflation considered good thing? | The main benefit of inflation is that it is a slight nudge towards people investing or spending their money, as opposed to hoarding it. If money will slowly get less and less valuable you will want to invest it or spend it today, instead of waiting until years from now when it's worth less. This tends to encourage econ... |
Why do rappers not get investigated for crimes committed in their lyrics? | It's artistic license. If I wrote a story in the first person tense about being a serial killer, would I be investigated for murder? Probably not. A lawyer could argue that these rappers are playing a part, like an actor. And that what they are describing are based on incidents that the rapper has seen or heard about. |
If the universe is constantly expanding, why do the stars appear as if they haven’t moved? | The stars have moved. They're moving constantly for multiple reasons . They are just very far away so it isn't readily apparent that they're moving without precise tracking and measurements. And the universe isn't expanding outward from a point of origin. Every point in space is expanding. No matter where you are in th... |
Can a computer virus/trojan/whatever destroy a computer beyond repair? | It's absolutely possible, although in the case of that 9gag post, it's unlikely that it's true. Assembly programming will allow a programmer to get deep enough into the system to have the ability to cause permanent hardware damage. It is even recommended to use an emulator when learning assembly to avoid accidentally d... |
why, when stabbed, does blood come out the mouth? | Because you've perforated the lungs, so the negative pressure in the lung is released and blood is allowed to seep in through the new hole. You try to cough it out to get it out your lungs but then more blood gets in the hole. |
" Peace doesn't mean the absence of war." What does it mean ? | The same way marriages can end without going full divorce proceedings. Just because you're not outwardly attacking eachother does not mean you get along.I read in some book recently by Yoval Noah Harari. Peace is not the absence of war, but the implausibility of itTo your question "what does it mean"? Peace means there... |
Why are people executed with lethal injection, as opposed to cheaper and less painful methods like putting a gas mask on and breathing nitrogen? | Serious question I was under the impression that lethal injection recipients are put under general anesthetic like sodium pentathol before the Lethal dose is administered. So they are unconscious and do not feel pain. I realize that this would likely be more expensive, but it should be painless right? I seem to have re... |
Why aren't issues such as marijuana legalization put to vote more often? | It's already known that the vast majority will approve overturning the existing law, so that needs to be prevented to protect the huge revenue flows and policing powers that rely on keeping drugs illegal. You can see that the federal government is more fully vested in fighting legalization. They still classify marijuan... |
Why does coke taste better in a can? | Not just coke, but i feel this way about Sprite. Out of bottles in cups, it's just not the same delicious flavor. |
if matter can't be created or destroyed, how does matter currently exist? Isn't the existence of matter already breaking that law? | Matter can be created and destroyed . The total mass-energy of our universe seems to be zero. Gravity is acting as negative energy. There's a great lecture on this called [A Universe From Nothing]. Watch it, it's a lot of fun and quite easy to understand.All of science is predicated upon the idea of "give us one free m... |
Why it could take 14 more years to return to the moon after man set foot there 46 years ago. Have we not advanced much since then? | Just to add on to what other's have said, I noticed in the article: > Last month,\xa0Roscosmos announced\xa0that it will send a lander, Luna 25, to the moon's south pole in 2024. After touchdown, the lander will investigate the lunar surface for future lunar bases. So it seems they want to do a lot more than just go th... |
τ vs π as the circle constant | It's just like an argument about whether you should measure distance in centimetres or metres . Neither is more correct, but one is often more convenient than the other. |
How come North Korea is going through a famine? | In short: the government is corrupt and arrogant. In longer: the government has refused to accept foreign aid and their economy is totally fucked. Not only have try refuse o accep aid, they have closed their borders to any trade a this only makes their economy worse. The people can't grow food for themselves because th... |
Why do extremist groups hate the western world so much, namely USA? | Cuz we've been meddling in their affairs for a hundred years, mainly since world war 1. Not being political, just being a student of history. Before then we minded our own business pretty well but since we started supporting certain rulers, overthrowing others, arming various rebel groups to purposefully destabilize re... |
What is a computer 'memory leak'? | OK basically when a computer needs to do something manipulating any kind of data it needs to allocate memory in which it can store and manipulate that data. So normally a program asks for some memory, does what it needs to do, then tells the computer its done with that memory so another program can use it. When a memor... |
Why, when I cut my fingernails unevenly (like so it has straight edges and non-rounded corners), does it grow out to be even? | No, your nail will grow with an edge until you make it round. However, keep in mind that your nail is constantly touching places with your finger. Friction will take a bit of your nail edge away every time you touch something, thus rounding the nail for you. But that's only if you keep your nail for a long time. |
Why is same sex marriage something that has to be legalized? Why can't they just get married? | > Why can't they just get married? Because they can't get a marriage license. They can certainly have a wedding ceremony, but from a legal standpoint, that is meaningless. All that matters to the government is whether or not you filled out and filed a marriage license. In jurisdictions where same-sex marriage is not le... |
[ELIA5] How did people not get pregnant in the days before birth control? | They would get pregnant a lot. They'd also get a lot of STD's that would damage their reproductive systems so they couldn't get pregnant. They would use a hodgepodge of semi-effective primitive contraceptive techniques, and could turn to crude and dangerous abortion techniques of those did not work. Even then, many got... |
If the statistics for contracting HIV are so low, how do people get it, especially if they have intercourse with an infected person just one time | One of the big problems is with recently infected people. They have a very high viral load in their blood, and they don't know they have the disease so they continue to have unprotected sex. They are 26 times more infectious in the first 3 months than they are after that initial period. |
What makes landing on Mars different from the moon landing? | Another thing to keep in mind is that once you get to Mars, you need to stay there for a little bit. Since Mars has an atmosphere, there are things like gigantic dust storms that can severely damage equipment, make communication impossible and blot out the sun . Speaking of communications, since there is a time delay, ... |
How exactly does one hang his or herself in a "seated position?" | Your feet don't have to be suspended in order to hang yourself. I'm guessing his feet were maybe stretched out and hung himself with just enough clearance between himself and the ground to create enough tension on the belt to suffocate him.you get a noose and then let your legs out from under yourself. |
Why is eating dog meat not socially acceptable in many western societies? | It's different because dogs have a real symbiotic relationship with us. They've evolved to help us hunt, and they protect our homes, and in return we give them food for their service. Let's see you get a goat to do that! |
Why do people in the west who eat meat have issues with eating dog meat and horse meat? | it'd be considerable cognitive dissonance to eat a dog or horse because many of us have emotionally bonded with dogs and horses. why don't we eat our own dead who pass away from natural causes?", 'Because they are pets in the western world. |
If a person is having anaphylactic reaction, could making them bungee jump have the same effect as an EpiPen? | No, because your body can't produce enough. Stress-induced epinephrine/adrenaline concentrations in blood top out at about 0.5 micrograms per liter, and people have around 5 liters of blood. Even doubling that for a *really* stressed person with a *lot* of blood, that's 5 micrograms. An EpiPen gives a dose of about 300... |
How do radio stations now exactly how many listeners they have? | They don't know exactly for broadcasts, but they ratings agency has a sample audience they ask, have fill diaries, or carry PPM devices which listen to coded transmissions. They did the science and figured how small a sample they need to equate the larger audience. |
How can a taser not stop your heart? | Without getting into ohms law, it's basically not enough current to hurt you permanently but people can die from extended exposure.The thing that kills you is Amperage, not voltage. Tasers are high voltage and near no amps. |
Why are American hospital bills so much higher than other first world nations, and has things like Obama care help at all with the cost? | It's worth noting, in addition to the other posts, that no one ever pays the full amount they are billed for in US hospitals. It's a negotiation, and the bill is just their opening offer. Typically the hospital and patient will go back and forth several times before settling on some amount that the patient actually owe... |
Why does Walmart waste money on all their checkout stations but they never have more than a couple open? | I will answer your question with another question: Why do sports stadiums have 100,000 seats when the typical game doesn't draw that many spectators?", 'I feel the same way about drive thru windows. Why is the first one always closed?I went to Walmart at around Midnight a few weeks ago. We had to wait 20 minutes while ... |
What happens to a scientists career when a cure is found for the disease they spent their lives working on? | They move onto the next research problem. They have a normal fixed salary and don't depend on finding cures to get paid. |
Why do some veterans get screwed and others don't? | The only time people get screwed is when they don't follow protocol or don't fight for their rights .The VA Healthcare system is rocky at best in a lot of places so maybe that's why people voice concerns of being screwed. Maybe that person feels that are owed more than they are. And maybe they were kicked out and are m... |
What "overclocking a CPU" is, what it does, how you do it, why you so it, etc? | A CPU runs at a certain speed, which produces a certain amount of heat during high-performance. This amount of heat produced needs to be able to be removed and kept at a safe level by the cooling equipment that ship with the CPU. Overclocking forces the the CPU to run at a higher speed, improving performance. This is d... |
Why do we usually put hills or foliage on roundabouts, obscuring the view of other vehicles? | I've never seen a rotary where I needed to see passed the center island for safety. I just need to be able to see the traffic that's coming around the bend of it. Maybe I'm just used to larger circles than the ones you're asking about? |
if the universe is infinite, does that mean that all permutations of matter exist within our universe? | That would necessitate an infinite amount of matter/energy in the universe, which is different from having infinite volume, and I don't think is the case . |
If women are being paid less than men for what is TRULY the same work, then why aren't companies only hiring women? | The argument is that an unconscious bias pervades business. Even though women can be hired less expensively than men, people feel that women cannot do as good a job as men. They might not even know they are acting out a bias. I'm just the messenger. Don't hate on me. ;)", 'I agree with most people here. But why do the ... |
how does internet banking work? What's stopping me from adding a few extra zeros to my account balance? | How would you go about doing that, exactly? And keeping it from that bank's auditors? It would be discovered at some point, and then you'd lose the money and end up in prison. |
Why won't the U.S ban guns despite having more shootings and mass murders than seemingly any developed nation? | Not a gun guy, but it's about money. Gun sellers make a lot of money and control a lot of politicians who convince their middle class constituents that even a reasonable agreement on what type of weapons the general public can own is a major threat to their perceived freedom. |
How does fisting cause pleasure without causing harm to the body? | For men, anal applies pressure to the prostate, which induces pleasure. For women, anal applies indirect pressure to the posterior fornix, which also induces pleasure. For both genders, stimulation of the rectum simply causes pleasure, as there are a lot of nerves in the rectum and surrounding the sphincter. Fisting is... |
Why does a 20000mAh external battery charge a 3500mAh phone 5 times over, but is unable to charge a 4640mAh laptop once? | Generally the phone and laptop are different voltages. I've never seen a charger that works for both, though I suppose it might exist with some very specialized circuitry, but it's not an ideal situation. You see, the work something can do, the energy it has is dependent on both the voltage AND the current, which multi... |
Can someone explain what risks I'm taking by pirating movies? | The biggest risk you take is downloading malicious software along with whatever it is that you actually want. All manner of software which can remotely control your computer, track your activity online , steal personal information, etc can be riding along with that movie or video game. Next, is the risk that an interme... |
When I drop a bottle of coke and then open it, it erupts. When a coke machine drops a bottle of coke and then I open it, it's fine. Why? | Because the difference in height would matter greatly, if you were to drop a coke bottle and it lands on the same side from the same height, theoretically it would fizz the same amount that a bottle out of a dispenser would. Plus those vending machines are like 1 degree celsius so they're cold, therefore lessening the ... |
How are dogs able to differentiate small breeds of dogs from other animals so innately? | Think of it like this: If you saw a human baby dressed in a fur suit, then saw a baby gorilla, would you be able to tell the difference? From a distant still picture, maybe not, but you'd pick up on the subtle differences in gait/behavior/etc seeing it live. |
What is actually happening when you "crack" your knuckles? Why do you have to wait a bit of time before you can do this again? | Nice questions I'm curious too. I also feel such an urge to crack my knuckles almost like an addiction. |
Why do we crave cold water more than water at room temperature? | I always thought it's because a cold water source implies fresh and clean water, whereas a warm water source would mean possible contamination, bacteria growth, etc. |
Why bees die after their stings ? | Bees stingers are barbed so that when they go in, they are very hard to pull out. If the bee stings something, it will try to pull its stinger out. Sometimes it will successfully pull its stinger out . Other times, it'll pull so hard the stinger will tear free from the bee's body, and the bee will bleed to death in min... |
Canada's relationship with England/Britain | To put it simply Britain is kind of like Canada's mom. We're all grown up now, but were fine with her being on our money.This video does a really good job explaining all the nuances: _URL_0_ |
Why are most people scared of spiders significantly more than most other insects? | I'm more scared of wasps than spiders to be honest. But spider webs creep me out, and the way they trap their prey and leave it hanging there until it exhausts itself. *shudder* Also, it could be because spiders are so silent compared to other buzzy things that warn you of their presence. When you finally spot the spid... |
How do we get food poisoning from the bacteria toxins in food that's been out for 5 hours, but not from any bacteria that's been in our own mouths for that long? | Bacteria have many different types, some are harmful, and some are not. Bacteria that gives you food poisoning usually aggressively attack your cells or produce toxins, while bacteria in your mouth and gut usually just feed on your excess food but don't harm your body in any way. Actually, I don't think the immune syst... |
What Gets You The Farthest on a Low Tank of Gas, Going Very Fast Until You Run Out or Going Slow and Minimizing Engine Usage Until You Run Out? | If the car's an automatic, one important thing is to avoid the torque converter slipping more than you have to. I recently borrowed my Mom's Escort ZX2 for a few weeks, and was getting 25mpg in it. She drives like the grandma that she is, and only gets like 17mpg as a result. Firm but not full throttle acceleration up ... |
Why do sleeping pills have warning labels stating, "Caution: may cause drowsiness"? | In many cases the patient will remain drowsy for hours after waking up after drug induced sleep. Since this isn't the purpose of the pills but a side effect they are required to state it on the container. |
Why does the Board of Education and teachers nationwide (may be global) belittle Wikipedia's credibility and resourcefulness? | It's written by amateurs, rather than professionals/academics, and it can be edited by the public. It can be great for casual use, but in academia, sources of information are held to a higher standard. |
How is therapy effective when it is in the therapists' financial interest to keep you as their patient? | Same as mechanics, accountants, masseuses, any service provider really . Reputation. If someone doesn't do what they claim to do they won't stay in business long. |
Why aren't all people whose jobs require extreme amounts of focus (presidents, surgeons, etc.) on Adderall? | Because stimulant medication has side effects and these people don't need additional focus in order to do their job.Because drugs are expensive and can have serious side-effects. |
What causes a sunburn to hurt? | pain is your body giving a signal to alert your brain of damage being done. Why does touching a hot stove hurt, or hitting your finger with a hammer? Just our body's self preservation mechanism. |
if the price of an oil barrel is the lowest in history, why is gas still expensive? | all commercial products are priced at the maximum level that the consumer is willing to purchase. even if oil went down to $1 a barrel, the customer is still willing to pay $3 a gallon, the company will price it as such and reap in the profits. it's a company's GOAL to extract maximum profits from the consumer. a compa... |
why your voice sounds different to you when you speak and when you hear it on a recording? | The answer depends on the medium, but lets use a telephone for example. Disclaimer: This info is for the Australian PSTN, YMMV. You, as a human, are capable of producing sounds upto 20kHz, however in normal day to day speach you're really only using a fraction of your vocal range.For a number of reasons, but mainly to ... |
"American Psycho", what happened? | In the book it's up for debate, in the movie it happens.My source is an AMA on Reddit where the person who wrote the movie explicitly states that Mr.Bale really did everything. I'll give a half-hearted attempt to find a link and get back in here, if I don't find it immediately I will give up. Found it Edit: _URL_0_", '... |
Why do some people back into parking spaces? | 1. It's easier to get out of a parking spot going forward. This is because you can actually see any on coming traffic or pedestrians. 2. I think I am more in control of my positioning when reversing in, it's also easier to correct my steering. 3. Perhaps you should get some training in parking I'd you find it difficult... |
Why are all top comments on youtube such obvious trolls ? | They get to the top because Google hadn't figured out how a comment section should work. One day they may stumble onto Reddit and see this voting system we have, bit until then you have these trolls who think they are clever and funny. I had one cyber stalk me. Well, he tried to anywho. I personally flag each one as sp... |
Why does the stockmarket exist? | It's crowdfunding. The company gets to raise capital for expansion or other projects, and in return they hand out a set amount of ownership of the company to the person who bought it. It started off as a means to raise money for shipping ventures in the Netherlands, and has now expanded to be a way for people to buy an... |
Do compasses work in outer space? | Not only would a compass work, but compasses are regularly used on satellites. They're not used for navigation though. Instead, satellites measure the earth's magnetic field to do research into the magnetic field itself, and to learn things about how strong the earth's magnetic field is very, very high up, at the kind ... |
Why don't insurance companies know when their customers are taking several prescriptions at once? | I think its much simpler than paying cash and intentionally hiding it.My ex's grandmother has specialists for everything. Feet, Heart, GP, Mental health etc. and none of these doctors talk to each other or have any idea who is perscribing what. Every time she visits any doctor she has to bring in everything she is pers... |
Why does a solid state hard drive cost so much more than a USB flash drive of the same size? | It's the difference between a normal magnetic hard drive, and a magnetic cassette tape. Sure, the technology is the same, but it ain't the same thing. |
How did the batteries in Nintendo(NES) cartridges save? | It's a little piece of RAM, which is volatile memory. The game's actual file is in ROM which is not volatile, but it also cannot be altered The volatile memory has the advantage of being able to read & write, but disadvantage of needing power. It needs power because each bit of RAM is actually a tiny capacitor. If the ... |
What is NASA trying to achieve by discovering new Earth like planets? | We've had a good theory for faster than light travel since 1994. JSC is actively working on it, but with an actual destination that the public is interested in we might get political will and real money to make it work. |
Why do so many people (Usually Americans) hate the french so much? what did they do to them? | In my experience, a lot of it just boils down to the fact that Americans and the French are two nationalities that think very highly of themselves. That will unavoidably cause tensions. It's like the two popular high school girls in every teenage movie ever. Also, the father of one of those girls used to be the richest... |
Why does it take some people longer than others to be alert upon waking? As in, why does it take some people longer to really "wake up"? | My wife laughs at me about this. When something happens suddenly, like an earthquake or a car crash, I jump out of bed and hop into action well before I'm awake. It's cool and everything, except in those cases when it's not really an emergency, like when she accidentally banged something against the bed frame and aslee... |
How do libertarians justify the working conditions of the industrial revolution? | They would argue that as terrible as the conditions in the sweatshops and factories were, people worked there because those conditions were at least better than the alternative, which was total destitution or working back-breaking labor on a farm. This is only partially true. People didn't flock to the cities to work i... |
How do rappers make music videos of them smoking weed and smoke weed at concerts and never get charged for it? | It's generally just a regular cigarette rolled like a joint or blunt or its some sort of legal alternative that they most likely don't inhale in order to stay coherent during the show. |
How is allowing only Native Americans to run casinos not racism? | I think you are confusing racism vs discriminatory laws, which are fairly different things, however that is besides the point. Native American territories are legally sovereign nations so they can govern themselves. There is a much deeper explanation but I'm not really qualified to talk about it.We don't allow them to ... |
How are penny-pressing souvenir machines not illegal? | If coppers going out of circulation was criminalised we'd have to have police officers checking the back of people's sofas. |
why isn't welfare tiered to slowly ween as you make more money? | It used to be in Australia You had to report any income earned, anything over a certain amount and you lost $1 for every $2 over the amount. |
How do aquatic mammals like dolphins stay hydrated/don’t get dehydrated by salt water? | They get water from their food, and that food is mostly a carnivorous diet perhaps for this reason. Marine herbivores end up taking in a lot more salt and have to have mechanisms in place to deal with this. They also have kidneys that have a better processing system then most so they can pass more salt through their ur... |
Why don't people eat swans? | We don't eat a lot of things simply for cultural reasons. Most Westerners don't eat dog or cat, because of their intimate association as pets. People from other countries don't have that taboo. The same for horse. Swans are really pretty. That pushes a cultural taboo to eating them. Plus, I think they'd be really hard ... |
How are 4-6 year old actors forced to start crying in movies? | They used to pinch them. I don't think they are allowed to do that anymore. Their mom can either say 'no more ice cream' or they just squirt glycerin into their eyes. |
How do those cassettes with 3.5mm cables work as an adapter to play music in your car? | The tape player head is a coil of wire wrapped around a single loop of metal which has a very thin gap in it. The tape's magnetism induces a current into the loop which then induces current into the coil. It is a tiny transformer. For recording the signal flow is reversed. The adapter replaces the tape with another coi... |
How was it decided that people became "adults" when they turned 18? Why is that age significant? | Minor or youth status and it's affiliated legislation are 20th century inventions designed to protect the rights of young people trying to complete their education to get a better start in life. So an acceptable cutoff was established to protect kids from entering the workforce, marriage and the military too early. Soc... |
Why do racecar tires have no tread in order to get better traction, but normal tires have tread for better traction? | Also racing slick tyres always have a more 'soft' compound, that means that it gets very sticky when warm, and also disintegrate quicker, that's why they don't last very long. |
Why is our backs more likely to give out than other parts of your body? | The spine is the central pillar that holds the rest of the body up. It does most of the work and can't really rest unless you're laying down. On top of this, it's a pillar made up of 33 oddly-shaped pieces connected by muscles, elastic, and sponges. And none of them are in a straight line, so muscles have to hold every... |
Why do some symptoms of a person with a tourette syndrome (not all people with a tourette syndrome) vanish whenever he/she sings? | Well, it does vary from person to person, but as someone with Tourette Syndrome, I've found that sometimes immersion in an activity can dampen or quell the tic-urge. So if singing is an activity that requires mental focus, that can lead to lessened tics. |
How does an xray show something that a ct doesn't? | > How does an xray show something that a ct doesn't? When the two techniques have different resolutions and limits of detection - much like if you use a crappy disposable camera on a spinning globe, you might see some blurry landmarks. However, if you took multiple snapshots with a proper camera, you can make out diffe... |
Can hearing become impaired by being exposed to an inaudible frequency at a very high volume? | People keep saying 'no' but in fact you can have your hearing, and your whole body can become damaged by loud enough sounds that are in ranges you can't hear. Sound waves through the air are, effectively low powered concussive force traveling through a medium. Loudness is basically 'power' behind said force. Your ear p... |
What limits creature size here on Earth? | I remember hearing somewhere that if the oxygen content of our air was 50% higher then we'd have spiders the size of dogs, because arachnids and insects breathe through their skin/exoskeleton as opposed to with lungs. So yeah. Fuck that. Nature's scary enough. |
Wind. I get that it's moving air (I think), but what causes it to move in the first place? | Wind is caused by trees. When trees move their branches, they act like fans and push air around. That's why it's always very windy whenever the trees are moving a lot. |
The lore of Warcraft and how we have come to the current expansion. | You're asking the entire Warcraft lore to be explained? Even summarized, that would be several pages. |
Why does pursing your lips and blowing air make cool air as opposed to warm air when blowing normally? | To add to what others have said, try this: blow quickly through pursed lips and place your fingertip right on your lips. It will feel warm. Then move your hand away and you'll feel the temperature decrease. The reasons why have already been explained by others, but it's an interesting demonstration. |
Why a refrigerator doen't need a coolant change but my car does | Coolant and refrigerant are 2 different things. Your water based cooling system is nowhere near sealed. The refrigerant for your AC works my compressing the refrigerant which removes heat. Here's the thing most people can't grasp a fan does not make cool air. It moves hot air away from you. Your refrigerator is simply ... |
Why do words stop making sense when you think about them for too long? | Because language isn't natural, its man made. Its just noise that we associate meaning to. When you start thinking about it it becomes more and more obvious that you're just making sounds. What it means is all in your head. |
The difference between decriminalisation and legalisation | I was wondering the same, here's what I understand so far: There are two sections in law - criminal and civil. Breaking a civil law is bad, and you have to pay a fine to make up for it. Breaking a criminal law is worse, and you may go to jail for it. Decriminalising shifts a law from criminal to civil, while legalising... |
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