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Why do my ears randomly become warm? | Someone somewhere is having a conversation about youBecause they are thin and blood goes through them. If your body heats up temporarily for whatever reason, chances are your ears will heat up the fastest of the organs on the surface. |
Why does Google Translate seem to do a better job at translating some languages than others? (i.e. better at Spanish than Japanese) | I bet it translates Japanese to Korean better than Japanese to English. The difference being similarity in grammar structures, I'd guess.Part of it, as already mentioned, is that languages with similar grammar are easier to translate. Japanese is particularly difficult to machine translate, for several reasons, though.... |
Why are governments compensating taxis for the rise of ride-sharing services like Uber? | > Isn't it a free market? With taxis, no, it is not a free market. Cities regulate taxis, because they don't want too many of them clogging the streets and polluting the air. They only give out so many licenses, and decides which companies get how many. What makes a taxi different than a car service is you don't schedu... |
Why to the label wood 2"x4"/ 2"x6" / 2"x8" etc when the true measurements are irregular and actually 1.75"x3.5" and so on | That is the original dimensions of the rough cut lumber. Older houses actually have 2" x 4" 2x4s but later they began to plane 1/4" off each side for nicer wood, as a result, everything is 1/2" smaller then what we call it.In addition to what people have already said, it's good to know that the amount milled off of one... |
What happens to the weapons and gear of fallen soldiers? | Hey, US Army Infantryman who is actually in Afghanistan right now here. In an Infantry platoon it is the Platoon Sergeant's job to maintain accountability of all men, weapons, and equipment. He does this by maintaining a MAL given to him by the Company's Armorer when weapons are signed out from the arms room. When a So... |
How does communication with satellites, astronauts, rovers and space probes like Discovery or Voyager work? What type of Tx/Rx signal is used? | > for radio waves to propagate you need an atmosphere Nope, electromagnetic waves actually travel best in a vacuum. Adding particles in the way only causes interference. Are you thinking of sound waves?A direct line of sight is most efficient, but not required. Radio waves can pass through matter, but matter reduces th... |
What is happening in the economy in china right now. | $3.2 trillion of value was wiped from the stock markets in under one month. That's between 25% to 30% loss in value. This loss of value is not far off from the one that kicked off the great depression. The whole thing happened because the market had a boom due to cheap and easy credit. This created a surge in investing... |
As humans, why do we tend to prefer a sedentary lifestyle and have poor posture if we need exercise and our poor posture causes us pain? | Honestly, one of the hardest parts about fitness -if it is not intrinsically motivating- is that the ramifications of NOT doing it are not immediately seen. For example, if you touch fire you are immediately burned so you pair fire with pain. Similarly, if you drink a lot and get hung over it happens close enough in su... |
How did Kim Il-Sung come to power and convince people he and his son possessed god-like abilities? | Basically the Russians put him in power. He then started to cultivate a huge cult of personality by cutting his people off from the outside world. After a successor had been chosen the propaganda department went to work building his cult of personality. Incidentally Kim Jong-Il wasn't the one originally selected to tak... |
Why doesn't light from distant stars ever reach us? | To get a good answer, you may need to rephrase your question. The light that you are seeing "from the past" is light from the star reaching us. much of it is redshifted because of expansion, as you note, but it is reaching us. What light specifically are you asking about that doesn't reach us? |
How does eating lots of fatty/fried foods lead to sore throat? | Have you considered that perhaps you are getting a cold?', "What exactly was the deep fried stuff? Fatty foods often leave an oily feeling in people's throats, which is probably somewhat lubricating. There's a good chance you were eating SALTY fried stuff, which will dry out your mucous membranes by drawing water out o... |
Why do colleges/universities have sports programs in the first place? | Because sports programs make money, so universities want them.Good sports teams bring in students. Students bring money and allow the University to expand. If you were the chancellor of your university, one of your top goals would be to draw in good students. Good students mean * National prestige for the university * ... |
- When you're on an airplane and flying against the world rotation do you get to destinations faster | The effect is relevant for space travel, which is why launch pads are usually as equatorial as is practical. But planes move relative to air, and air is basically locked to the ground.No. You are flying with respect to the air which generally moves along with the ground. Also you start with momentum from the ground and... |
Restaurants brag that their food is never frozen. How badly does freezing food really affect taste and quality? Or is it more of a marketing thing? | it all depends on the food and how it was frozen. If food is frozen slowly, then ice crystals can form in and around it. These crystals damage the food and cause unpleasant textures. The act of thawing can hurt as well. Vegetables lose moisture as they thaw. however, typically this is a marketing gimmick. When flash fr... |
Why does spider silk have such miraculous properties that are difficult to reproduce synthetically? | Spider Silk is made out of specific proteins that are compressed and stretched in a manner to create the strong but stretchy spider silk that you know of. We have just gotten to the point where we can cheaply and easily genetically alter organisms such as bacteria and yeast to produce the proteins, but they are yet to ... |
Time Travel - if it were possible to travel through time, wouldn't the earth have moved away from where we landed? | This is what we call a "plot hole"I don't know of any book that does address it though. Of course, it would be relatively easy to calculate the earth's "absolute" position however long ago you 'd want to go.Easy explanation in literature: The space-time continuum. Time machines not only move through time, but they also... |
How Does Brawndo always mutilate my thirst so effectively? | Just in case you didn't know this existed: _URL_0_", 'Here is my Brawndo. I won it at a Comic-Con a couple of years back. It was a trivia contest and I had really liked the movie, answered some questions and kept it in my closet all the the years until now. Anyone know what its priced at? I can not find it anywhere on ... |
Why is it that whenever I eat a bigger than usual supper, I wake up ridiculously hungry? | How filled with carbs, especially on the higher end of the glycemic scale, are those big meals? Because it could easily be your blood sugar dropping during sleep . Doesn't mean you're "hungrier than usual"—it just means your body wants to get its blood sugar levels back in balance. You could try eating more fat and les... |
Why do people (myself included) slouch our backs? | Because from an evolutionary perspective the human spine is a piece of garbage. Our spines are curved into an S to begin with because we're upright and that places a strain on bones that evolved to be horizontal to the ground. Then we tend to spend all day sitting on our asses in one position getting fatigued. Our spin... |
There is clear proof that there are KKK members in the police force in America, why isn't anything being done? | Because it's not a crime to be a Klan member. We can exclude officers based on their actions, but not their political beliefs. |
Why a "runny" noes stops while you fall asleep | When you fall asleep, you're most likely flat on your back. Your head is in a position where the mucus falls back into your throat, and you're less likely to sense it. When you're awake and upright, the mucus drips out of your nose. |
How does getting vitamin D through sunlight work? | Your skin contains molecules that can be synthesized into vitamin D when they're exposed to ultraviolet light. The energy from the UV light causes the molecules to change shape, allowing your body to convert them into vitamin D. It just so happens that the most convenient source of UV light is the sun. |
How does a mirror help to fix phantom limb syndrome? | You don't just look in a mirror. You arrange the mirror in such a way the reflection of your intact limb appears where your missing limb is. This visualization makes it easier you to find and relax the neurons that are trying to send signals to the missing limb.You saw it on a Ted talk. The mirror is positioned so the ... |
How does an oven heat to 200°C, yet we don't get burnt by the air when we open it? | Air is a very poor conductor of heat. When you put your hand in a 200 C oven, it starts to heat up, but much more slowly than if you dipped your hand into a pot of 200 C oil. So long as you don't keep your hand in the over for very long, you will not get hurt. |
The White House memo laying out the conditions for when it's permissible to kill an American. | The 16-page white paper, written by the Justice Department, discusses how it may be permissible to to conduct a lethal operation outside of the United States against a U.S. citizen who is a senior, operational leader of al-Qaeda or an associated force of al-Qaeda, without violating the Constitution or statutes of the U... |
What is the cause of meat-sweats? Or sweating when you've had far too much to eat. | Eating will warm you up because you do actually burn calories. Mitochondria in your cells oxidize what you eat. Oxidization is 🔥 |
After baking food in the oven, why does cooking oil seem to appear underneath the baking foil when there are no perforations in the foil? | Aluminium foil is not going to be permeable to cooking oil. You can test this yourself by making a foil bowl with no holes in it and sticking it in the oven and just cooking that for a while. Either you have holes in your foil or it is leaking over the sides. In either case, oil under the foil will tend to spread out a... |
The marriage of communism and capitalism in present day Vietnam. | Well, we officially are 'socialist' rather than communist and after the post-war reforms, the government followed a free market system to help facilitate trade. For many of the younger generation who don't really get involved with government affairs, the only signs of being in a communist country we face are the soviet... |
How does Aloe cream prevent sunburnt skin from peeling? | From past experience it doesn't stop any peeling, only the actual pain of the sunburn by relieving the heat and the tight skin feeling by a moisturizing agent. |
What makes Glad Wrap/Saran Wrap/Cling Film ‘clingy’? | It produces an electrostatic charge which makes it cling to itself/Tupperware/plates/bowls/etc. But it won't cling to metals since metal disperses the charge much easier. |
Why does superglue always take forever to dry on the desired surface, but bonds to your skin in a microsecond? | Superglue requires moisture to set. Typically when you're glueing something the surfaces are clean and dry, so there is only atmospheric moisture to set the glue, and the glue is closed off from the air by the surfaces being pressed together. Your fingers are a comparatively moist environment, and the texture of your s... |
Does celibacy contribute to increased proficiency and productivity? | ELI5 rules dictate that I can't just reply with "no" but if I could, I would. Yes, there were some notoriously brilliant people who were celibate, but there are millions of people out there in the world right now who are celibate with absolutely no great abilities or advantages, and there have been thousand of noted br... |
Why does laughing gas cause you to laugh? | According to the material that BOC pharmaceuticals provide, the exact mechanism of the analgesia is not fully understood. It is mostly due to the fact the N2O interferes with neurons, which may cause irritation or sensation of laughter. TL;DR we don't know |
Is light directly affected by gravitation, like objects with mass, or is it indirectly affected through the bent space? | Technically, gravity *is* the bending of space. Light doesn't have mass, but it does have momentum, which is still affected by gravity. |
What’s stopping us from creating a battery that has a large capacity, doesn’t degrade, and is small enough to fit in a phone or computer? | Materials and design. We ask a lot out of rechargeable batteries, and there aren't too many materials that can do what we want . Lithium ion battery variants are pretty much the best we have, and there have been many incremental improvements made to them. But unless someone discovers a radical new chemistry/design that... |
Why did arcade machines only let you input 3 characters for the high school? | people have 3 names, first, middle, last which makes 3 initials which is what you were expected to enter. you have to limit the character input somewhere and 3 was as good a place as any |
How can Jerryrigeverything Scatch the crap out of a fingerprint scanner on a phone and it still works flawlessly? | A similar technique is used in fingerprint scanners as in capacitive touch screens, but on a smaller scale, so the capacitance between the ridges of a fingerprint and the valleys of a fingerprint and the scanner surface is different, and a large array of tiny circuits measures the capacitances and converts this into a ... |
How did the Native Americans get to America? | From Eurasia land mass through land bridge between Russia and Canada. The land bridges is no longer there. Probably existed in last ice agesThere was a land mass called the Bering Straight that they walked over from Asia on. It was temporary due to environmental conditions at the timeFollow up question: were they walki... |
What's the difference between a political consultant and a political lobbyist? | A political consultant can offer any of a wide range of services that may or may not include the subset of lobbying. For example if I give you political advice that you pay me for I have performed a political consultant service but not acted as a lobbyist by advocating your interests with lawmakers. There are more rest... |
What specifically do people mean when they say a song/abum has good "production"? | The producer edits together the various sounds, taking the ones that will sound best, and mixing the loudness levels so that you hear the right amount of each thing. For example, the various instruments and the vocals are almost always recorded separately and then combined. In many cases, the producer is also responsib... |
Why can't Star Trek store teleporter data & print people using the replicator? | They could. The "matter stream", which is your subatomic particles broken down and sent to a new location, can be reassembled even if it is not a 100% complete pattern. As /u/HagBolder notes, Riker did this and there have been other instances where a sort-of new person was made. They don't do it, even when someone dies... |
Military Redditors: What is the point of announcing ahead of time where and when we will be mounting an attack against ISIS? Doesn't this just help the other side prepare a defense? | The warning is given so that civilians have an opportunity to get out of the area. This type of warning is given in this situation because, even if they have all of the time in the world to prepare a defense, they can not win. If this were a war between equals, or an existential war, warning would not be givenThe annou... |
What actually happened when you put your car in park. | The transmission is put into neutral, a parking pawl, which is usually a small pin is moved into the transmission. With the parking pawl engaged, a pin blocks the drive shaft from spinning, which keeps the wheels from moving. _URL_0_ |
What are the differences between Night Vision and Thermal imaging | Night vision is a camera that relies on an external light source. That it, to the human eye it looks pitch black but in reality there is light of a wavelength that the camera is able to see. The most common example here is that many surveillance cameras depend on an infrared light source. Many cameras are already perfe... |
How come every race see the other races like they look alike? | Race doesn't really have anything to do with it. You are used to certain people in your environment and, because you have a frequent need to distinguish between them, you are attuned to differences between them. If you then interact with people who look different from what you are used to, your habitual "markers" of di... |
How does water come out in diarrhea? | Oh boy. I'm not sure where to start. Urine, which is what gets excreted into the bladder is not connected to feces, which is what gets excreted be the colon. Your bladder is basically just a bag that the kidneys fill up with wastes. The water part of it is pretty much there because the kidneys use it to flush the waste... |
Why is Thailand, which was never colonised by the West, not as developed as Japan? | The exact reasons that Japan is a well developed nation date back to the Meiji Restoration, when the Emperor regained real political authority. Emperor Meiji and his court were of the mind to invest in industry. The government built railroads, improved roads, and instituted the land reforms necessary to create the labo... |
trench warfare. Were the trenches dug up during combat by the attacking enemy? I don't see how that would be possible unless they just start from ry far away | Trenches were typically dug around important points of interest that were to be defended. The soldiers dug them out most likely with the folding trench shovels that they carried on there back a long with all of their other gear. The defending army would be the one to dig trenches to form cover. Dug before the battle be... |
Why was the 90s rap scene so violent? It would be ludicrous to imagine Marilyn Manson shooting Trent Reznor despite violent lyrical themes. Why was rap so different? | The thing is, artists like MM and NIN sing about violent themes but it's mostly fantasy. It's an image they're trying to portray, it's not the reality of their lives. The 90s rap scene was the exact opposite. Those guys didn't have to imagine what it was like to live in impoverished communities where gang violence and ... |
Why do jeans and clothes feel tighter after being washed and dried? Then after wearing why are they back to 'normal' fit? | When you wet the strands , they expand. When you let them dry, the contract. All you do when you wear them, is put the typical stretch the are used to back in. |
What are my rights in an Airport? | If they let you go without a doctors note you probably where in your right or they did not know how to handle it. |
What are the benefits of OLED displays over LCD displays? | OLED can be more power efficient, and can do deeper dark blacks. LCD can be brighter. OLED works by having the pixels themselves light up, so they can go totallly dark and if they do so, consume no energy. LCDs work by producing light then using chemical "shutters" to block it, which means a totally dark screen consume... |
Why grills' marks makes food taste so good? | Grilling food involves cooking it at high temperatures which can result in caramelization of sugars & mallard browning. These things actually make food taste better and give you more depth of flavor. The grill marks themselves, however, are just for looks. The only effect that fake grill marks have would be psychologic... |
Why does my congestion move from nostril to nostril with gravity? | My best guess is all congestion is is a mucus/fluid build up in your nasal cavity, not exactly in your nostrils so I kind of imagine it as water in a bottle. It moves around based off gravity but if won't just drip out on its own. |
There are warnings on my microwave that say not to run it while empty. Does anyone now why or how this damages the microwave? | The walls of the oven are designed to reflect the microwaves, intending for them to eventually be absorbed by food. But with no food, they will just keep bouncing around, eventually being reflected back at the magnetron, heating it up. The excess heat can damage it. Best case is that it blows a fuse, rendering the micr... |
Why do a lot of name combinations like Tom and Jerry, Rick and Morty, Ben and Jerrys sound so wrong and horrible to hear when said the other way round? | Maybe the 1/2 syllable combo rolls off easier than 2/1 ?', "Well, all of those name combos have a one-syllable name followed by a two-syllable name. That's probably it. |
How Does Internet Speeds Work? | Your speed is in megabits, as opposed to megabytes. It’s a marketing tactic and is misleadingThere are several factors here. * 1: The size of your file is measured in Giga**bytes**, while the speed of your connection is measured in Mega**bits** per second. There are 8 bits in a byte.* 2: Storage is usually measured wit... |
Why do Presidential candidates "suspend" their campaign? Does this mean they could suddenly return at some future point? | It has more to do with fundraising. A suspended campaign can still fundraise in order to pay down incurred debt . A terminated campaign can no longer collect money.> Does this mean they could suddenly return at some future point? That's exactly what it means. Let's say Trump and Cruz get caught clubbing baby seals toge... |
Why is Comcast's acquisition of Time Warner not a violation of anti-trust laws? | We don't know yet whether or not it will be. We won't know until the FCC and FTC make a ruling, but likely the announcement means that Comcast believes they can get past this issue. Herdnerfer and Mad_Gouki are generally correct though. |
Why does facebook think I know people whom I share no friends with? | Maybe it creates you the perfect opportunity for you to make some friends since you only have 149One possibility is if you have ever installed the Facebook app on your phone that it reads in your phones contact list and tries to suggest them. I made the mistake of installing Facebook on my work phone that had almost 50... |
How do moths form? Do they really feed on cloth? How do moth balls work? | Moths are born from eggs laid by other moths. They live and die just like any other insect. Some moths do feed on cloth, particularly wool and silk, because those come from animals and have protein in them. Other moths eat leaves, other bugs, or fruit. Moth balls are made of a chemical that evaporates and turns into ga... |
Why is waterboarding so tortuous that the Navy Seals removed it from training because even none of them could handle it? | There are various methods for doing it. It basically involves tilting someone back and pouring water in their nose and mouth to fill their larynx and sinuses. This induces a gag reflex, which forces you to cough and suck water in to your lungs. If you are tilted back, you won't actually fill your lungs, so you won't re... |
Why can I rent a 1200 sq.ft. office with all utilities included for $650/month, but a 650 sq.ft. apartment with no utilities included cost $1200/month? | When you rent an apartment, the landlord has to fix anything that breaks, and they have to go through a long and complicated process to evict you. When you rent an office, the landlord doesn't have to fix anything , and they can evict you much more easily. |
Why can you recycle plastic bottles, but not plastic bags and garbage bags? | Plastic bags are so light and fluffy that they can get blown around within the recycling center. They can get jammed up in the machines and even be responsible for breaking the machines, so often places do not accept them. Some communities have facilities designed to process material like plastic bags, but they're not ... |
How are downloads and storage mediums so accurate, such as keeping billions of bytes without a shred of noticeable corruption? | The drives themselves have on-board error checking that can remap bad spots out of "spare" space on the drive. Your 200GB drive may actually have about 205GB space on it, but that other 5G is reserved for remapping those kind of bad spots . The network transport protocols used to move the data between servers also have... |
How does COBRA insurance work? | COBRA is part of a law that required companies with 20 or more employees to continue to offer group health insurance to employees for a period of time after they leave employment. The goal was to make sure that employees who were laid off were able to continue to receive insurance while searching for a new job. You can... |
Why is there only one altitude at which geostationary/geosynchronous orbit is possible? | It is perfectly possible to travel around the world in exactly 1 day at any altitude. However, geosynchronous orbit refers to an orbit in which you don't need to use fuel to make that happen. At lower altitudes, you need to move faster horizontally to compensate for the fact that gravity is stronger, which means you ne... |
Why are sparkly things so hypnotizing? | There is a theory that humans evolved their fascination with shiny objects because it helped us spot and drink from running water. Running water is generally safer to drink from than still/stagnant water, and is pretty sparkly in sunlight. |
What would happen if you tried to breath in space? | You would be able to survive for a while by holding your breath and forcing your mouth shut with a lot of strength. What happens in vacuum is that all the air inside your body wants to come out to try to equalize the pressure. By keeping all your hole as tightly shut as you can, you may be able to prevent that for a wh... |
Why is it that if I put my finger directly over my flashlight, I cannot see my bone through it? | For a similar reason to why shortsighted people can't read words at a long range. The resolution is too poor to allow you to distinguish the bones, and it's very likely that the focal point is actually still inside your skin. Visible light doesn't penetrate well through flesh - it's very readily scattered by the materi... |
What is the point of foaming hand soap? Wouldn't it clean better if you had to make your own lather? | You're right. Foaming hand soap probably began in commercial applications first. You don't need to fill the cup of your palm with soap. But that's what people do, multiple pumps from a soap dispenser, wall mounted ones drip excess soap onto the floor or counter. Foamed soap dispenses less product, but still fill the pa... |
What makes me want to itch my skin? | First, you don't "itch" your skin, you *scratch* your skin to relieve itching. An itch is the sensation that makes you want to scratch. Itching comes from our pain receptors. It's just a mild reaction to being touched or irritated by something, but not enough to cause real immediate pain. Your brain still recognises it... |
How can spammers leave comments on my blog without visiting it? | Commenting on a web page is a different process from viewing it. In technical terms, commenting is done through a "POST" request, while viewing is done through a "GET" request. If the spammer knows your blog's URL, he can just send a POST request, sending the spam contents, without first viewing the comment page with a... |
How can Donald Trump go bankrupt multiple times but still remain a millionaire? | Donald Trump hasn't gone bankrupt. The businesses he has [mis]managed have gone bankrupt. When you create a corporation, the individuals running it are not liable for the corporation's debts. |
How can conversations be so real, interesting and fascinating in dreams if it's really just our own brain talking to itself? | Well, your brain knows what's interesting and fascinating to you so it's easy for it to interest and fascinate you in your dreams. |
How are human populations of historical times(anywhere from 0 to 1000 AD) estimated? | Mathematical projections of population growth, combined with population estimates of historical cities and the ruins based on the size and number of buildings. |
That feeling you get in the pit of your stomach when looking over the side of a tall building. | It's the fight or flight response. When you encounter something that is frightening or potentially threatening, your body releases hormones like adrenaline to help you prepare to deal with it. That feeling is a side effect of the hormones. |
What is a serotonin feedback loop? Often this is modulated by antidepressants such as Zoloft. How exactly do these affect your body and how long does it take to go into effect? | Serotonin is a neurotransmitter that stabilizes our mood. Neurotransmitters are used to send a firing signal from one neuron to another neuron. In the case of serotonin, the gap between two neurtons will be filled serotonin that is both released and captured by the same neuron, and the second neuron will be fired by th... |
When you twist your ankle or obtain someother injury, why is it common practice to fight swelling if that is your bodie's natural reaction. Why is swelling so bad? | It isn't bad. Your body swells around the injury to immobilize it so as to not cause further damage. These days we have casts/splints/etc. so we don't really need to use our natural swelling ability as we have tools to do it. My removing the natural immobilization we can have better blood flow and healing, and the old ... |
What exactly is happening when we 'inhale' a drop of spit and it gets stuck in the throat? It causes me to cough uncontrollably but I'm not able to dislodge it? | It gets inhaled into your windpipe, where air goes in. If it goes down your oesophagus , you'll be fine.It's the same as when you choke on water or food, it's because it went down the wrong 'pipe'. Your body reacts violently by making you expel the substances by coughing. If substances enter your lungs, you are at a hi... |
The Puzzle of Grue/Confirmation Theory | They refer to the problem of induction stated by Hume in the 18th century. This is a philosophical problem of science to prove that data from the past can tell us about the future . A famous example: I have in my life seen hundreds and hundreds of Swans and they where all white. Thus I can conclude that ALL Swans are w... |
why do guys spit all the time? | Us men don't. Some disgusting slobs who also carry a mounted penis do spit, but they barely qualify as human.Chewing tobacco is the usual reason. Outside of that, though, damned if I know.I spit all the time, I have no idea why. It just seems like whether my mouth is open or closed I produce a whole lot of saliva. If I... |
The difference between Advice and Advise? | Advice is a noun. It's what you get. Advise is a verb, the act of giving advice. |
If white rice is starchy, high-carb "empty calories," why was obesity not traditionally prevalent in Asian countries where rice is a staple? | There are a lot of factors to consider. Portion size, overall diet, typical amounts of daily activity. A culture having a food that is high in calories is a small piece of the puzzleOverall calories are most likely lower . Smaller portions, eating slower , more soups and vegetables, less fatty meats, less butter/oils u... |
Why whenever I get up from TV, computer, or even reading, I get that lightheaded, dizzy feeling and almost fall over. | You should go see a doctor about it.That's blood pressure dropping and your heart not getting it to your now elevated brain quick enough. While it's okay to happen occasionally, given you used seemed to imply this occurred frequently, go see a doctor as it could potentially be a sign of a heart condition, or just a bad... |
What's the difference between Alzheimer's and Dementia? | Dementia is just a word defined as: > A chronic or persistent disorder of the mental processes caused by brain disease or injury and marked by memory disorders, personality changes, and impaired reasoning. Dementia is a symptom of Alzheimer's however Dementia is not its own disease and has many causes from Alzheimer's ... |
Why does being "over qualified" discourage people from hiring you? | Because it's unlikely you will stay at that job. You are a high risk of leaving the moment something better comes along. |
How does adding up the dimensions used to describe a box (e.g. length, width, height) give you any useful information for shipping purposes? | I agree with the others, that it's a rule that's simple to communicate and easy for customers to check, and that it balances volume versus "awkwardness" for a package. Here's some math, maybe a bit beyond actual 5-year-olds but not too bad: Image a box that's a cube 56.6 cm on a side. It just fits in the 170cm-limit. B... |
Why is the line item veto unconstitional? | Some parts of laws are designed to work with each other. For instance, Congress might pass a law that lowers taxes on the poor and raises on the rich, as a compromise between people who just want to lower taxes on the poor and people who just want to raise taxes on the rich. If the President used a line-item veto to el... |
Why are we drawn to abandoned buildings, such as those seen on /r/abandonedporn? | I have no idea, really. Nostalgia, letting us use our imagination, finding it beautiful or haunting, reminding us of our impermanence, etc, are all perfectly valid reasons. There is an abandoned prison I got to go explore and it was amazing. And creepy. But amazing. |
Why is France bombing Mali? | Mali is a country in Africa and it is in the middle of a civil war. The government is fighting against a group of people inside the country who think it would be better if Mali had strict Islamic laws. These laws are very tough, and they control what people can wear, where they can work, what kind of TV and movies they... |
How can a computer run a simulation of a molecule or brain-state? | I can't speak to the brain stuff but the molecule stuff actually isn't that hard . The laws of physics tell us how systems evolve over time. These laws are mathematical in nature, and computers can either solve them explicitly or approximate them with very high accuracy. So for collections of thousands of water molecul... |
The screaming and what appears to be madness that takes place on a trading floor. | You wear a jacket to hold pens, calculator, phones, trading pads, etc. People will deliberately or accidentally write on you as well. The pads are what you write your trades down on and you turn them in periodically, they have a carbon copy for you to keep. You yell and flail around to get noticed because you all are t... |
AT & T, Verizon, and other cellular services are ditching contracts. Why? | There's been a bit of a consumer backlash against contracts, and some carriers decided to go against the grain and work without them. That seemed to work, so now other companies are emulating that behaviour. Now, a cynic would say that these huge companies will easily manage to make this seem like it's good for the con... |
What's actually happening when you crack a whip? | When you flick your whip, the tip of the whip snaps and actually reaches a speed faster than the speed of sound which makes a small 'sonic boom' and that's the *crack* that you hear. |
The Russian monetary crisis. | Essentially: Russia's economy is built and tied to the price of oil. Russia has a lot of it. Russia sells a lot of it to people. Recently, America has been able to quell it's dependence on oil through fracking. The middle east has made available a lot more of its oil resources recently as well. As such, with some of th... |
Why is it that when two people/things make a sound at the same pitch, the total noise reverberates? | I don't think it has much to do with harmonics.its more about the subtle differences between the two pitches are suddenly pronounced. You can observe this easily with a little experiment.Turn down your headphones and play the tone of these two frequencies. _URL_0_ _URL_1_ What you will hear is a 1Hz pulsing.If you were... |
Why is voting so important? | Your elected representatives exercise a lot of power. If you don't vote, you haven't communicated how you want them to exercise that power. Various "get out the vote" drives do attempt to target voters of certain demographics, who might be expected to vote a certain way.Because while your vote is secret, the fact that ... |
What are the various different ways a website generates revenue? | Advertisers can pay site owners to display adverts even if you don't click them. Some sites have pop-up adds that count as a click even if you don't follow them. Some site hosts give free hosting to sites if they can display adds on there. Advertisers then pay the host which covers host costs. An alternate advertising ... |
What happens when I get goosebumps from a song, scene in a movie, real life event...? | Basically it's because your dopamine levels shoot up as a result of the emotional response to the stimulus. Further reading here: _URL_0_ |
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