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Why do programmers hate using "GOTO" so much? | GOTO makes a program hard to read. The main reasons functions are used instead of GOTOs is that they are easier to modify, debug, and understand without going into details of how they are implemented. In a nutshell, functions may take a tiny bit more time to code than a GOTO, but GOTOs are really just hacky and break e... |
what is cognitive dissonance and how it works? | Cognitive Dissonance is when you have two or more competing thoughts. For example; let's say you think that the world is flat. You were taught this as a child, and believe it to be the truth. You're an adult now, and you've never questioned the validity of that truth.Then, while in a science class, you watch the free-f... |
How does a Javelin Rocket launcher track moving targets. | > How does a Javelin Rocket launcher track moving targets. It has an automatic infrared guidance system which locks on to a heat signature and will adjust the two rear fins in order to steer it toward the targetI program and develop guidance and control algorithms for a living. The answer is really complicated, but I w... |
Why is cancer so common nowadays? | Because people live long enough to get cancer. The more and more your cells divide, the greater your chances of getting cancer, so as people don't die in their 50s of heart attacks, they get cancer in their 70s. Also, several types of cancer are way down.100 years ago, we called people who died of cancer "people who di... |
ELI5:Why is there a need for the LA Country Sheriff's Department rather than just letting LAPD service that area too? | There are many cities within a county. So cops from the City of Los Angeles do not patrol in other Cities, such as Beverly Hills or Santa Monica. LA County services cities who cannot afford their own police force, plus all unincorporated areas. LA County sheriffs can patrol anywhere but focus on their areas.LAPD is fun... |
What is a game loop? | If you're making a game, you need stuff to constantly be moving, otherwise you're just looking at a picture. So you create an infinite loop that keeps running itself, and inside that loop are stuff like physics calculations and drawing methods, etc. In java, it might look something like this: while { physics; draw; } S... |
Why does 0! = 1? | If you think of factorial as a group of numbers that need to be arranged, you can see how it equals 1. For example: If I have the numbers 1 and 2, I can order them in this fashion: {1,2}{2,1} 2! = 2. Now, with a set of 0, we have the value null, which can only be arranged in this fashion{null}0! = 1, because there is o... |
Is a satellite orbiting the Earth (falling indefinitely) not technically a perpetual motion machine? | Reducing its kinetic energy would drop it into a lower orbit until the atmosphere deorbits it. Besides to put the energy into it we need to use rocket fuel.A perpetual motion machine, by its definition, outputs more energy than it consumes. It's physically impossible. Satellites that orbit the Earth won't remain in the... |
Why are electricity cables not built underground? | Air is a good electrical insulator. The ground is not, so you need to provide your own insulation, which is expensive. Also, air is good at cooling lines, which is important for lines that carry a lot of amperage, as they generate heat. High-current underground lines need a cooling oil pumped through them, which is exp... |
How does the budgeting process for presidential travel and security work? | The reality is that he is the POTUS - no one really has the authority to say no to him. As a general rule, he goes where he wants to go and does what he wants to do. . |
why it costs so much to repair a hard drive or recover data? | If the hard drive can't be recovered by software means they have to physically disassemble it and then read each platter individually. To do this requires a Clean Room , some sophisticated equipment, and many hours of time for a highly-trained professional. These are the skills and technology that you're paying for. |
how does software connect with hardware? | Well I'm a hardware engineer so I might have some idea though I work purely in ASICs . Almost all hardware has certain elements or to be more specific, registers, which are referenced by the rest of the logic for doing any operation. For example I have a simple adder in hardware. It has a maximum of 5 different inputs ... |
How come when viewing a video in slow motion, the voices are so deep | The pitch of sound depends on its frequency . The higher the frequency the higher the pitch. When you slow down a video, you also slow down the frequency of the sound waves .You likely know that sound happens because of soundwaves. The wave is a graph of air molecules moving back and forth and tapping your eardrum as t... |
Why do African-American women commonly wear weaves/wigs? | Society isn't a huge fan of the natural way many african american women's hair grows so fake hair is easier than chemical straighteners or something. |
Why is when someone is being interviewed on a channel like CNN, is there a delay between when they ask a question and the response. | Because the signal needs to go from where the question is asked, to a modem, to a cell tower or dish array, to space, back to a cell tower or dish array, to another modem, and then then to the speaker wherever the interviewee is. It takes time for digital information to travel, even on "live" televisionThe speed of lig... |
why is grapefruit bad for diabetics? | it’s not inherently “bad” grapefruit contains compounds which contribute to several drug interactions, but many diabetes meds do not have this problem. the only thing that otherwise could potentially be harmful is the sugar content, but in that sense it’s no different than other fruits |
What does the plus sign (+) at the start of mobile phone numbers do, and when do you need it? | It's called an exit code used for international dialing.The plus and two numbers are the country code. If you called the number from within the same area, it will just dial the number with a 0 instead of the international code. All phone numbers can be dialled with the international code so it isn't just mobiles. |
Babylon in Reggae culture. | It's related to the fact that a lot of reggae lyrics have their roots in Rastafarian culture. In Rasta beliefs, 'Babylon' represents the greedy, corrupt, materialist white/western society, while 'Zion' is their promised land, tied to Africa and particularly Ethiopia. _URL_0_ |
- How Come Astronauts Take Off Vertically? | The problem is that, unlike an aircraft, anything headed into orbit needs an *insane* amount of speed. At the speeds involved, air resistance becomes a **much** bigger hurdle than you see for things like airplanes, which move at a nice, slow 500 mph. At 500 mph, air resistance is just a minor nuisance . But for a rocke... |
If colored ink is so expensive, how do companies print color on packaging for so cheap? | Colored ink is not expensive. Colored ink that has been put into cartridges that will work in the particular inkjet printer you own is stupidly expensive, because the same people make the ink cartridges and the printers and have locked you into their ink cartridge ecosystem. Take your old genuine cartridges to Costco o... |
Why is it easy for me to eat the most spicy item on the menu but my wife can't even handle black pepper? | Part of it is "training" yourself to tolerate heat. By eating spicy foods, you're numbing the nerve endings in your tongue, making the next time you eat something spicy a little easier. The other part is pain tolerance. Pain is subjective and the pain you feel when you're eating something really spicy might be thrillin... |
if black is the absence of light how do phone screens produce it. | They don't produce it. They simply turn off all pixels in the area. They can't go any darker. But it seems darker because adjacent pixels are lit. |
What are good ways to understand Newton's third law of motion? | > Now the issue is that I'm trying to wrap my head around the fact that since this is true, then how is motion in our universe possible? Why would it prohibit motion in our universe, so long as there is equal and opposite momentum somewhere, it works fine.The equal and opposite forces act on *different* objects. You pu... |
Why do we bury our dead? | Not the only way to dispose of the bodies of the dead. If we just tossed bodies in the backyard, it would decay, breed disease, smell, and attract scavengers. Cremation and sky burial accomplishes the same goal.These other comments are right, but I'd also like to add that in some places, it's become tradition due to th... |
Why isn't anything being done about North Korean crimes against humanity? | > I don't understand why nothing is being done about North Korean prison camps, kidnappings, etc. This is in part why so many countries have sanctions against North Korea, and why they are so isolated. > but why can't a large, collective group of countries band together and liberate the people? North Korea's issues are... |
Why do Nordic countries like heavy metal music so much? | The traditional mythology of Nordic countries is dark in theme, the format of traditional eddaic poetry involves melodic vowel agreement and consonantal alliteration, which lends itself to the vocal styles of metal , and Nordic and Finno-Ugric cultures tend to have an acceptance of dark senses of humour and dark themes... |
Why do we prefer temperatures around 20 degrees cooler than our body temp? | If the air is body temperature it doesn't mean you will easily stay their, unless of course you don't do anything . Your body makes heat just being alive, if you can't get rid of it you will die as it only has a narrow range it works at. When the air is the same temperature you don't loose any heat so you overheat. \r\... |
how can trains carry so many cars and so much weight with only a couple engines? How do the wheels not just spin on that very thin track? | The train engine is extraordinarily powerful and the intuition you have for it being "slippery" on those tracks is probably not accounting for how heavy the train is. Even further, on a flat track the power requirements aren't all that much - for example, the "tractive power" required is 2-5 pounds of pulling force per... |
What is the safest way to look up potentially illegal things out of pure curiosity? | If you're in the United States, one of the most anonymous ways to research any subject is to visit your local library. Many libraries routinely destroy your checkout records once you return the books, that they cannot be Subpoenaed as evidence. There also is no requirement to check books or research materials out. Ther... |
is America getting themselves into a world war or another Vietnam? Will young men be drafted? | A war with who? The draft is unlikely to be reinstated. I'm signed up for the draft, as it is the law and I have to be, but the chances of me getting drafted are next to none War has changed. It's not a numbers game anymore. It's a technology game. You can do a lot more damage with 10 guys flying 10 stealth bombers tha... |
what's the science of why breakups are so difficult? | It's the same reason gambling is so powerful as an addiction. It's called loss aversion, and the sunk cost fallacy. Let's say you've been in a relationship for about a year and things have been great. You love her and she loves you, and then the honey moon phase sort of ends and the real demons start coming out one by ... |
what would happen if somebody broke the NATO treaty? | Sending military support is only one way NATO countries can show support. They can also provide financial aide, legal aide, or advisory aide. Unless one NATO country attacked another, I can't imagine a situation where the other NATO countries wouldn't provide some sort of support, no matter how indirect. |
Working out vs overworking mechanical items | When you work out, microfractures develope inside of your muscles as a result from the stress they are subjected to. What prevents your muscles from breaking down is that during recovey these fractures heal giving you more muscle mass. Alas, machinery does not actively heal it selfBecause your body is a living machine.... |
- why do trains care what you charge in their power sockets? Does it make a difference if i charge my laptop or my toothbrush? | Laptops and mobile phones draw relatively less power than something like a hair dryer or electric space heater. If several passengers used such devices it is likely circuits would be overloaded and breakers popped. Passengers are dumb so they restrict it to a few examples.Because laptops and mobiles don't draw much cur... |
The Enclosure Law during the Industrial Revolution. | Prior to the Industrial Revolution, there are plenty of privately owned lands in the countryside. People are free to graze livestocks or do whatever they want on those lands. This is called the Open Field System. During the Industrial Revolution, factories can process large amount of raw materials and have a higher dem... |
Purpose of TV commercials and other advertisements having the background speaker's voice sound unnatural and sillier? | It makes it more noticeable. If the voice is weird it's harder to tune out, so people often retain more information from it. |
Why is it so hard to fish specks from a glass of water/other liquids, or tiny pieces of eggshell from cracked eggs? | > It’s as if the speck is running from you Well, the speck is sitting in the water. You're putting your finger into the water, thus forcing the water away. Since the speck is on the water, you are in effect pushing the speck away from your finger. So in a sense, it *is* running from you. You could perhaps get some sort... |
why is humor dependent on context? | I will direct you to the subreddit /r/nocontext. The whole purpose is what you are describing…Humor depends on surprising results. Good humor depends on tapping into things that we all know but is also often uncomfortable to acknowledge. For example, [here] is a great letter from Patton Oswalt about humor. It includes ... |
How does Ricin kill you | Ricin is a protein that inhibits protein synthesis in the cells that it invades, and protein synthesis is basically what allows control of the cells in your body. Proteins are the units that act in the cell environment, and its synthesis is the "recruitment" process. Much like a police department that can no longer rec... |
- Phase Shift Keying as it pertains to itself and how it compares to Frequency Shift Keying | With FSK, you slightly increase or decrease the frequency of the radio wave you're sending. With PSK, the frequency doesn't change, but there is an instantaneous change in the phase of the radio wave. This is probably easier to illustrate with a picture than with words: _URL_0_", 'Think of the shape of the sinewave as ... |
Why are some words in English spelled the same but pronounced differently. | Read/read; bear/bear; minute/minute. They are called homographs , but I don't think it's proven why there are so many of them in English. They do exist in other languages as well, though. Most likely homographs are a result of a language covering large areas, without good means of consistent communication from area to ... |
Why do some people find it harder to grasp mathematics than others? | Everyone has diffident skills. There are many people who have a very hard time with reading and writing. The differences is that in our society it is not considered acceptable to be someone who "just cannot do reading" while there is this acceptance for those that have a hard time with math. I did not read my first nov... |
Why are the last seats on a school bus smaller than all of the others? | I assume it makes it easier for people to use the rear emergency exit. There's more space thus easier access to the doors. |
What makes an odor unpleasant? | If you're talking about food, and especially spoiled food, then most likely it's the bacteria that accumulated on it. Now that I think of it, maybe we evolved some sort of "chemical detector" that lets us know that food is spoiled. It's a little hard to put this idea into words but hopefully you get it. |
How did Crocodiles survive the extinction of dinosaurs? | First off, let me clearly state that there is no "definitive answer", there are several theories out there but none has been proven so far. However [this website lists several theories] which are quite interesting. Among others it also lists the water claim but explains why crocodiles were less affected than aquatic di... |
Why don't we have absolute control over our body? ( Stopping your own heart, growing limbs, shitting on command,,) | If you had absolute control you'd probably kill yourself before long. There's so many complex systems going on inside you that need to operate like clockwork to keep you going that it would be too much for you to consciously handle. You forget to beat you heart one day and you could die stuff like that. |
Why do cigars smell completely different when you're the one smoking compared to when someone else is smoking? | I’m not a cigar smoker but my father in law is and he explained that cigars are best enjoyed through your mucus membranes and that you’re really only supposed to smoke enough to keep it lit. This is a very different experience compared to smoking a cigarette or a joint where people try to inhale as much of the smoke di... |
How do graphing programs plot functions that are not defined in certain domains? | It turns out that there's a more complicated definition of the factorial function based on calculus that handles non-integer values. As long as you're using that version of the function, you can easily graph it out by numerically approximating the values. |
Why don't alcoholic products require an ingredients list or nutritional fact chart? | Nutritional information is required by anything regulated by the Food and Drug Administration, but since alcohol is regulated by the Alcohol and Tobacco Tax and Trade Bureau instead, it doesn't have it. Source: _URL_0_", 'In the US alcoholic drinks are regulated by the TTB while food and regular drinks are regulated by... |
The traffic light system. | Traffic lights can be very simple and just run off timers those have no idea whether there are any vehicles around. They still have to synchronize all of the lights at one intersection, of course, so that they don't all turn green at the same time . But these are relatively simple circuits to create and wire up, and th... |
How do those who make short films and animated short film earn a living? | In the case if Mr. Hublot, it was funded by [Film Fund Luxembourg]. In many cases, there are organizations who will support the creative minds with equipment and/or money. I can't speak for all cases since it probably varies a lot, but I know that in Sweden you can also get this kind of help from the [SFI]. Winning an ... |
Why is this "stripped book" warning always in books, and how does it actually work? | Booksellers take the covers from books that didn't sell and return them to the publisher for a partial refund. |
How do people develop bad eyesight over the years? | If you mean why do people need reading glasses in middle age and the glasses need to get stronger and stronger as they age more then the answer is as follows ; The lens in your eye gets less flexible as people grow older because layers similar to an onion build up. This lack of flexibility makes focusing on nearby obje... |
Why does the AMA oppose socialized medicine(single payer)? | They have another proposal that they like more. Their proposal says that low income people should get government subsidies to buy insurance and the market should be regulated. They think that single-payer systems lead to an undersupply of doctors, nurses, etc., lead to long waiting periods, and a lack of patient choice... |
Can you dilute DNA at a crime scene? Would hydrogen peroxide work? | Nice try person that just committed a crime and looking for tips on how to get away with itSure, but it's pretty obvious. When police come to a scene and the entire inside of a room has been sprayed with bleach, pool acid, or hydrogen peroxide it's pretty obvious to their nose that this was a premeditated crime. When t... |
Neanderthals. What are they? Are they our "missing link?" How can we tell if someone has it in their DNA? Does that mean they have non-human traceable ancestors? | Neanderthals are 'cousins' on the human family tree. They moved to Europe before modern humans, but later humans came to Europe, 'stuff happened', and the Neanderthals died off. We have found enough Neanderthal DNA and compared it to DNA of modern humans and there are bits that are so common that it is extremely likely... |
A Canadian, Jack Layton just died. Why was he so important to Canada? | Jack Layton was the leader of a political party called the NDP. In a recent election, the NDP came second to another party called the Conservatives. Because Jack's party came second, his job was "Leader of the Official Opposition". His duties included keeping the leader of the party that came first in check. Furthermor... |
Why does running water over cuts and scrapes hurt? | Because of the chemicals that are added to water. And you should wrap your fists before using a punching bag. tearing the ligaments between your knuckles will be one of your least favorite life experiencesI'll give this a shot. Your skin has several layers, one of which is where the nerve endings for pain end. [skin la... |
TSA "Code Blue" | You aren't the first person to ask this, but google is suspiciously devoid of answers, despite lots of people asking. Apparently, [prior to 2012], code blue meant someone saw something suspicious and everyone needs to be on alert. In 2012 the color system was apparently done away with and each individual airport now de... |
Why does masturbation feel better if not done for a long time? | ELI5.. well, imagine it's like a bottle of soda. Your bottle of soda is magic and it fills back up the longer you keep it closed. When it's full and you start shaking it and the top blows off, you have a lot more soda spraying everywhere and it's a lot more fun. |
Why are vegetables really common in cooking, but not baking? And vice versa, why are fruits so common in baking, but not in cooking? | This is just a cultural tradition. In Moroccan and Persian cooking and older-style English cooking, the use of fruits with meats is very common. Vegetables aren't usually found in baking because they turn to mush. There are some exceptions, like carrot cake. |
Why do TV's make a louder buzzing sound when brighter colors (usually all white) suddenly appear during a scene? | I am assuming you are using a CRT TV. The buzzing is produced by the electron beam hitting the individual pixels. White light requires more intensity, requiring a stronger beam that buzzes more. |
How do we get accustomed to things like glasses, rings, wrist watches etc on our body. Why do we not feel weird after some time as we do when we first wear them? | The human mind is conditioned to react to change because that skill is an important thing for basic survival. That tree sitting there, completely still, is not a threat. But the wild boar charging you from underneath it is. That rabbit that just moved could be a food source. And that spider crawling on your shoulder th... |
How does the American political system make it so difficult for Obama to introduce tighter gun controls? | In the United States it is not the president who introduces new legislation to be written into law. The president signs bills into law.The American government is based on what we call 'Checks and Balances', where-in our three branches of government are limited in power so they can not make unilateral decisions. For ins... |
HIV/AIDS and why can't we kill it. | HIV is whats known as a retrovirus. Meaning every time it divides within you, it changes its receptors on the outer shell. When white blood cells produce antibodies for the original virus it has already changed. Because of this, there are many strains of the virus and vaccines are only able to protect you from one stra... |
What difference does the mix make on a music recording? | Imagine you had several separate stereos that each played one element of a song; One stereo for the lead vocals, another for the bass, another for the keyboard, etc. In that scenario, you could adjust the volume and equalizer of each stereo separately, turn them on and off at will, change the timing of when each elemen... |
Why does licking a seemingly dead pen make the pen able to write again? | Pens are a chamber with ink in it and a steel ball jammed in a tight-fitting tube at the lower end. When you write, the ball turns, "rolling" the ink onto the paper, then rotating up into the ink supply to bring more down. Pens with ink still in them often get jammed up if unused for a while because a crust forms on th... |
What did our finger/toe nails evolve from, and why do we still have them? | Fingernails are extremely useful tools, anyone who has had LEGO bricks can tell you that. They also amplify the pressure you feel with your fingertips by providing a hard surface to squeeze the receptors against.They are pretty useful for peeling fruit, digging and they protect our fingertips while simultaneously makin... |
What's the difference between the culture and climate of an organization? | imagine culture represents the lasting behaviors, beliefs, and values that have been instilled overtime and remain fairly constant. climate probably just refers to shifting situations and aspects that aren't so deep or permanent. culture is what's going on in the background, the shared perspective of things. the climat... |
How come most modern cars have automatic powered windows on the driver's door, but not on the passengers' doors when all it costs is a new switch? | I think all modern cars have them on all windows. Or do you mean where you click it and it rolls down all the way even if you aren't holding it? That's because there isn't a need for it anywhere but the driver's window. The point is for when the driver needs to roll down their window while still focusing on driving, sa... |
Why do you get tired when you are bored/have nothing to do when you normally wouldn't be tired? | It's because your body is genetically programmed to seek rest when there's nothing going on. You're fed, warm, and not in pain or danger, all of which are expected to continue in the immediate future. All of your basic needs are met and you don't need anything and aren't being stimulated, so the body says "might as wel... |
how do night-vision goggles work and why is everything green? | The short answer is that they magnify the light that is available, meaning that in theory they wouldn't work in a situation with absolutely no light. The slightly longer answer is that light photons hit a screen that turns them into electrons. These electrons travel down a tube that releases more electrons, magnifying ... |
Are very expensive watches significantly (or any) better at keeping time than a cheap watch? | There are two types of watches - electronic and mechanical The vast majority of watches made in the past 40 years have been electronic. They are all very accurate, even the $10 ones, and a higher price does not buy you more accuracy. A higher price gets you a nicer-looking case, face and band, made with better material... |
Why do Guiness bubbles appear to sink? | Dude, you're 5 years old, you shouldn't be drinking beer.Guiness bubbles do sink, but they also float. There was some science video on it, too tired to go get it for you. Just Youtube PeriodicVideos Guiness. |
Why does it take 3 years to start a murder trial for the Colorado movie theater shooter, James Holmes? | Because you only get one shot to prosecute someone. You can't just keep trying until you get it right. So the prosecution wants to make damn sure that they go in there with the very best case that they can possibly have. Because if they fail to convince a jury that he's guilty, if they overlook something, get evidence ... |
What causes gray elbows? | Dead skin that has accumulated and hasn't been flaked off. Your skin is constantly shedding dead skin cells. Some areas with thicker skin like your elbows accumulate it faster due to more skin being produced than in areas with thinner skin. |
Why do people who fall from 3 stories or up get injure/die, but ski jumpers who reach heights of 100+ feet feel barely anything at all? | Skiers are not landing on a flat concrete slab like the people falling. They are landing on steeply sloped snow. It is not the fall that kills you, but the sudden stop at the end. Notice the ski jumpers, when they hit the ground, are still moving at a similar speed. If they ran straight into a sidewalk at that speed th... |
Why do Japanese cartoons and animated show not depict Japanese characters very often? Most seem to be of Western ethnicity. | This is actually a misconception :-) I don't have it off-hand, but there is an excellent article talking about this very issue. Asian people think the characters look naturally asian. Westerners think they look naturally western. Why the discrepancy? Basically, because our cultures relate to different physical attribut... |
Why is wine considered upper class, while beer is considered lower class? | History. Wine was drunk by the Romans, while beer and ales were consumed by the horrible, uncivilized barbarian natives. Fast forward about 1000 years. If you want good wine it's grown in France, Italy, or Greece. And everywhere else has to import it, often at high cost. |
What can cause somebody to start profusely bleeding without an open wound? | Generally it would be caused by an inability to clot, combined with some form of internal wound . That would result in uncontrolled internal bleeding, which would in turn end up coming out of the "nearest" orifice. It could be made worse by high blood pressure in certain cases. I'm sorry to hear about your grandfather.... |
The Cuban Missile Crisis, Che Guevara, and the Revolution | Che Guevara was a an Argentinian who became radicalised after travelling around South America as a young man and seeing the poverty that existed. He met the Castros in Mexico and joined their group to help overthrow Batista the U.S.-backed Dictator of Cuba. They succeeded and the U.S. wasn't happy about this since thei... |
Why do humans get so many muscle/joint injuries compared to other animals? | Many of our common injuries and illnesses stem from the fact humans walk upright, even though almost all of our pre-Australopithecus ancestors walked on all fours. An example is the sinus, which has a poorly positioned drainage hole. However, in a quadruped, it is positioned perfectly well.Source: Dawkins\' "The Greate... |
Why do editorial boards like The New York Times endorse a presidential candidate, isn't that a conflict of interest for neutral reporting? | Editorial boards aren't news reporters, they are news commentators. They write Opinion-Editorials not articles. There is a slight difference in kind, which makes a big difference. Paul Krugman and Charles Blow are on the editorial staff and are on record as hating Trump as much as possible given the Times policy on not... |
Why are public school teachers salaries so low? | One factor is lack of funding for schools. Local funding is heavily dependent on property taxes, so lower income municipalities have a lower tax base to work from when funding the schools.They're not always low. In some states they're coveted jobs that pay more than other professions Also, they have summers off and sho... |
Why do you cut steak at an angle? | When cutting on an angle, you're cutting against the grain. The meat will taste more tender because you'll feel less of the tough muscle fibres. Another bonus with cutting on an angle is that the pieces will have more surface area, so you have more steak flavour in a single bite. |
- I've seen posts of people losing lots of weight in a year (100+ lbs.). Is this weight loss really healthy or very unhealthy? | Can be healthy, can be unhealthy. It depends a lot on what weight that person started out with , how slowly weight is lost , what measures they took to cut calories , what how healthy the food they are eating is. |
Why does dry-erase marker ink wipe away, but Sharpies don't? | Dry erase markers contain a plastic-like binder that the dyes get stuck in as well as a solvent that dries really slowly. Sharpies contain dyes that only disolve in strong solvents like alcohol. So once the solvent in the sharpie dries, you need more of it to get it back offI might be wrong, but I think dry-eraser mark... |
What happens to your lungs/air-passageways if during an asthma attack an inhaler is not available? | Your bronchioles won't be in better shape, or in any way improved for having had repeated asthma attacks. On the contrary, they'll become more damaged, inflamed and enlarged over time. This enlargement, or remodeling, of the smooth muscles then acts to further narrow the air way, making it even more difficult to breath... |
How can the skeleton of a fat person hold all that weight? | Bone is strong. And I mean REALLY strong. It would take a LOT of weight to break bones, that's why your legs don't break when you lift something heavy. However, people who are larger do have problems with their joints, because there's a layer of soft tissue between bones called cartilage that stops them from rubbing to... |
That feeling you get when you're standing on the ledge of a tall building, or when a fast train passes by and you think, "what if..." | It's called "l\'appel du vide," which is French for "call of the void." It's really just curiosity. We're attracted to the unknown.Mine is always: What if I throw that person I don't like down there. |
How do speakers create the sounds of certain instruments (drums, guitar, etc.) without actually having the physical elements of each of those instruments? | A sound is just a vibration of air. A drum beat or a guitar cord are just combinations of certain air vibrations. A speaker can sound like a guitar or a drum because it can make the same air vibrations as those instrumentsThis is my first ELI5 so sorry if I ramble Sound is caused by waves of air pressure that is then p... |
How do desk measurements work? example Size 55 1/8x25 5/8 " | 55 and 1/8 an inches long by 25 and 5/8 inches wide. So if you are looking at it from where you sit, that’s about 4 and a half feet from right to left, and it extends just over 2 feet from you You say“by” when reading the x allowed. Measurements with this layout are always length, by width. And if there is a third meas... |
What happens to our bodies when we force ourselves to be a 'dead weight'? | Basicly just loosening all your muscles and not assisting in movement. Since you're not using your muscles to assist in your movement, whatever or whoever is moving you has to provide all of the strength, where as otherwise you might at least be able to limp pr such to help support yourself. |
why fueling an automobile can cause an explosion if its engine is running | It probably can't cause an explosion. In fact it probably won't even cause a fire. However the incidence of people accidentally leaving their cars in gear and plowing into pumps greatly decreases if they turn their cars off.It’s about risk assessment. Technically speaking anything is possible but an explosion or fire w... |
How did they come up with "twin", "double", "full", "queen", and "king" for mattress sizes? | A double is the same as a full. A twin is also called a single. "Single" and "double" refer to the fact that the bed is intended to be occupied by 1 or 2 people. Queen and King refer to larger sizes , and the names imply that they're more luxurious. #As far as full and twin go? Full probably originated as a standard si... |
Why is the window of youth for a female (that is, the years of highest fertility) so short? | Because having a baby is hard on your body. In your 40s, your body starts to ache and creak enough without carrying the extra weight of a human + fluid, and having all your organs pushed into weird places. Not to mention childbirth and recovery.For much of human history, a female who survived to childbearing age only h... |
Why did Turkey make their own versions of famous American movies,for example Star wars and E.T in the 80s? | Cause there's profit to be made. Same reason why there's knockoff movies. Someone comes up with an idea that makes money. You can make your film of same idea and make some money |
Why don't we put "windmills" under water to use the endless currents of the ocean to generate power | They do. Its called Hydroelectric. We mostly use dams for it. A significant portion of the world is powered this way. edit: typo', "A few reasons, the ocean is really hard on equipment, for one, especially in the tidally active locations that would be optimal for that sort of power station, and that same tidal activity... |
Proper use and what to expect from a MacBook Air. | All your questions come down to what you need a computer to do for you. If you're a big gamer, a lot of people will tell you to shy away from Macs. It isn't nearly as bad as it used to be to be a gamer on the Mac nowadays though. Macs come with a general purpose text editor that's basically like wordpad on windows. If ... |
How did someone create computers, such as the first programming language with no prior knowledge of computers? | You should watch the movie The Imitation game. The code cracker he develops is basically one of the first computers. Initially a computer was just for performing complex math without any screens or keyboards. As people developed "smarter" computers they started adding punch cards then languages, and keyboards and monit... |
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