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Why smelling hot sauce or horseradish opens up your nostrils and sinuses? | Hot sauce irritates the sensitive tissue in the nose, causing the body to think it's being attacked by dust, pollen, or other foreign irritants. The body then produces mucous in an attempt to flush out the contaminants. Smelling salts release ammonia gases which irritate the linings of the nose and lungs, triggering a ... |
what are muscle "knots"? | You might not realize it, but muscles can only pull, never push. They only contract, and need to be loosened by an opposing muscle. So if you're overworked, stressed and don't get enough movement, some muscles stay contracted, and need to be loosened up manually. That's why we stretch ourself when we're tired. |
How does the nail file on my Swiss Army knife remain useful for years while other files wear out or need maintenance? | Other files might be made of inferior steel. Victorinox, on the other hand, buys tons of knife-grade steel, and buying inferior steel just for the file would probably cost them more overall. |
Why do all ancient Egyptian drawings use the same style with subjects heads looking to the side? | I love art history, it's been a while since I studied this subject but I'll explain to the best of my memory: There are a couple of reasons, one major one being that the drawings interacted with heiroglyphs in such a way that they were sort of their own writing system. The drawings weren't intended to be art, they need... |
Why are cold air intakes illegal in California? | Because you're altering the air intake system, it could potentially alter the car's emissions and make it produce an undesirable level of emissions. You just need to make sure whatever cold air intake you install has a California Air Resources Board approval sticker on it. > California and other states that have adopte... |
How do pull tabs work for safe, removable hooks and batteries in phones? | I repair phones for a living. The adhesive strip is designed to be removed at some point. These strips can be pulled taught and they will stretch. As the strip stretches the adhesive pulls away from both the phone and the battery. After the full strip is removed the battery can be fully released from the casing and rep... |
What did people do with their faeces and urine before toilets, in cities specifically? | Often they would be collected in some sort of receptacle, like a pail, which would be dumped into a cesspit or other location designated for waste. Sometimes there would be open gutters along streets which waste would be dumped into and washed down. Sometimes it would be dumped into a waterway to remove it. Sometimes s... |
What substance is used in a lethal injection and how does it move through the body? | Well it depends on the country but in US it goes like this: 1. **Sodium thiopental** or **pentobarbital**: ultra-short action anesthetic agent capable of rendering the prisoner unconscious in a few seconds.2. **Pancuronium bromide**: muscle relaxant, causes complete, fast and sustained paralysis of the skeletal striate... |
Why manufacturers don't remake classic cars with modern engines and amenities? | This isn't a concept question, why don't they do X just calls for a speculative answer. Various car companies have tried throwbacks that borrow classic styles, such as the 2005–2014 Ford Mustang, same with Cameros and Chargers. The PT Cruiser, PT Prowler, and so on. _URL_0_ |
Why do emergency broadcasts over the radio have such horrible sound quality? | The emergency broadcast system was originally built during the cold war. Today we use it largely for storm warnings, but it also has the capacity to operate during major natural disasters and national security events. Basically, the equipment is supposed to withstand a nuclear bombing and deliver instructions to the su... |
How are we able to "sense" when someone is near us or is watching us? | Electromagnetic senses implanted in us during vaccination. When files send via Bluetooth it sometimes causes us to notice each otherWe can't. The whole "feeling of someone watching or staring at you" is just [Confirmation Bias]. Your mind remembers all the times that you looked around and caught someone staring at you,... |
how does the fed determine interest rates? | Interest is, in economic terms, the cost of using money. So interest rates have their own supply/demand curves depending on how much money is available and how much money people want to use. The Federal Reserve can change the supply of money, and thus has some control over interest rates. They also are the primary regu... |
What causes non-substance addiction? | Because you're still in whatever you're doing for the "reward." Even though the addiction isn't a physical dependency, you can still get a "high" or "rush" from behaviors. And much like with physical addictions, you're constantly chasing better "highs." Like with gambling. Some folks get a "rush" from it. It's because ... |
What happens if you denounce US citizenship ? | Let's say you decided to renounce your citizenship. In order to do this, you would appear at a U.S. Consulate in a foreign country and sign some paperwork . You hand over your passport , and then congratulations, you're not a citizen. If you are not a citizen of another country at the time that you give up your US citi... |
How can electric companies over charge and estimate your power consumption without actually looking at what you consumed? | If the meter can't be read for some reason, they estimate. I had an office building and they installed new smart meters on everyone else's building but mine. My bill was an even $250 for five months which was low and odd that it was an even amount. Then I get a bill for over $2500 !!! It turns out they did not read the... |
Do people who need less sleep function better on less sleep or just have faster sleep cycles? | They have higher quality sleep cycles. It's a bit hard to explain, but basically they get more out of their sleep cycles, particularly REM sleep, than the rest of us do. |
How does Muscle memory really work? | What we call 'muscle memory' isn't in the muscles. It's a bunch of connected pathways in the brain that have been used some many times that they're well developed, and act as a shortcut. Take walking for example. You need to synchronise something like 300 muscles perfectly to walk, and it takes a long time to learn how... |
Why is it possible to pee the bed but one never has to consciously stop themselves from defecating in ones sleep. | Urination involves the relaxation of muscle, while defecation involves the tensing of muscles.You've obviously never been really really drunk before! |
If 20-40% of adults are lactose intolerant, why don't any ice cream parlors or chains have even one flavor of lactase-supplemented ice cream? | There are plenty of chains with lactose free options. Also the number is no were near that high. |
how do you emulate a game/game server? | Most of the MMO's use a completely different program to be the server. The server handles all the game logic so that it makes the game as hard as possible to hack. For instance, you press the ground to move, the server checks if is a valid move, moves the player in the server and then sends that information to the clie... |
Are the ~160 calories in a decent beer a absorbed the same way as the calories in 5 Totino's pizza rolls? | Not necessarily. For one, alcohol is extremely easily burnable, and the calories from it will always be metabolized first. All the calories in beer come from alcohol and simple carbohydrates . If you go to an all-you-eat buffet, you're probably getting some protein, fat, complex carbs as well, all of which burn more sl... |
How does a pool table know to return the white ball when it's sunk, but keeps the coloured balls? | Years ago it used to be that the cue\xa0ball\xa0was ever so slightly larger than the other\xa0balls. Nowadays, the cue\xa0ball\xa0on most coin-op\xa0tables has a magnetic core. The return chute inside the\xa0table\xa0has a magnet that pulls the cue\xa0ballaway from the colored\xa0ball\xa0depository into a separate retu... |
why do we use mint toothpaste or mouthwash for our mouths but typically fruit soaps for our body? | Just guessing here but the cooling sensation of mint/menthol that last a while makes your breath better and your mouth feel clean. Fruit soaps make you smell pleasant after you use them. In both cases, you know that you smell good and people around you would notice directly/indirectly giving the sense that you take car... |
Why does hot water sound different than cold water when poured into a cup? | Hot water is less dense, so it technically weighs less per millilitre and would give a different sound to cold water when pouring it into the same container. |
Why does laundry detergent warm up when wet? | Because an exothermic chemical reaction is taking place. Exothermic: the reaction that is taking place releases energy from the system, giving off heat. **Edit:** Is this what you're looking, for, or do you want more details on the reaction? |
What powers does the US president have? | The POTUS has lots of powers, but the US government is set up with a system of checks and balances, so that no one person or branch can just take over. * If Congress passes a bill, the POTUS can veto it. * President appoints public officials and nominates federal judges. * President can issue Executive Orders, which ha... |
Why are there grape sized tomatoes but not tomato sized grapes? | I don't know but could you imagine grabbing one of those badboys and sinking your teeth into it? A grapple? A gramato? Tomape? |
If 'rest' is such a critical biological necessity, why do the heart and lungs (made of the same material as the rest of the body) not need it? | When an animal sleeps, you'll notice a general slowing of the breathing and heart rate. When a person is lying down, it also reduces stress on the heart, since it doesn't have to fight as much with gravity to keep blood moving to the head. That said, 'rest' as in sleep doesn't really apply to any autonomous bodily func... |
What happens with dirty money after it's been discovered it's been laundered? | Frequently yes. If you've ever seen a police or city auction, chances are you've seen goods that were seized by the authorities, and are now being sold off. Houses, cars, etc Laundered money isn't really different from regular money, and can, in some jurisdictions, be used by either the police department or city that s... |
Why are Anonymous planning to take down Facebook on 5th November? | Knowing lots of things about your friends and the mean kids in kindergarten means you can get them in trouble easier, tattle on them easier, and trick them easier. It even makes it easier to make money! If you want to set up a lemonade stand and sell lemonade to your friends, it's nice to know what kind of lemonade the... |
What's a botnet? | Bunch of computers that have a virus installed and are able to be controlled by single computer, they usually stay passive until asked to do some task like ddossing a server. you might be a part of botnet, without ever realizing, as they usually stay silent untill given a task. and the pc works normally. they usually c... |
Why did European calvary favour sabres over spears and lances during the colonial era? | It's not calvary. Calvary is a hill outside Jerusalem. CAVALRY liked sabers over spears because they were reusable, unlike spears and lances which needed to be dropped in order for a rider to stay on the horse. The weight of the person the spear/lance impaled would unseat the rider. It's also the reason the swords are ... |
How did the TV industry become nothing but reality shows? | Those channels are breaking viewership records thanks to their reality shows. As many people as there are who say they like the high quality, educational shows, it turns out more people actually want the cheaply produced reality stuff, which is a win-win for the channelsReality TV has hit a "Sweet Spot". Despite the qu... |
What are the consequences of not bathing and not washing clothes? | If you don't use *any* modern surfactants but still wash using clean water, then after a month or two your body's natural oils will start to act as a barrier to dirt and microbes -- this is one of the main reasons why your body secretes oily substances in the first place. However if you don't bathe at all you're likely... |
Why didn't the Ent, Dwarves, and other races help in the battle for Middle Earth in LOTR. | Aaragorn released the dead because that is what he promised them he would do. He could have tried to back out of the deal and try to command them to continue as their king, but that would be a dick move.It looks like the questions of the races are fairly well answered, but I don't see the answer for the Dead Men. The D... |
Why does disconnecting and reconnecting to my wifi seem to speed up my connection? | Depending on the age of your device, you have multiple antennas at work inside of your device. They can connect at speeds between 20-300mb/s. The access point will do its best during the duration of you connection to provide you the most stable connection. During the course of your session many things can cause interfe... |
Why are some foods "Breakfast Foods" and others "Dinner Foods"? | If you travel to parts of Asia you will find there is not a lot of difference between what is eaten for breakfast or lunch. I've eaten fantastic Mie Goreng at 8am", 'I'm fairly certain that the only reason "breakfast foods" are different is because of advertising campaigns decades ago by the pork and egg industries in ... |
When you have a cold, where does the seemingly endless snot come from? | Basically from [goblet cells] and submucosal glands in the nasal airways. Inflammation causes the goblet cells and submucosal cells to increase mucus production. The production is constant and does not require a great deal of energy so these cells do a substantial amount of mucus production relatively easilyPhrenicfox ... |
Why does being "cold wet" make us sick? | Getting sick because it's cold is generally a misconception and usually attributed to lower temperatures in winter months. What's really happening is that we're just inside more often when it's cold. This puts us in close proximity to other people and increases our chance for exposure. That's why flu season ramps up in... |
how the "male enhancement" companies aren't shut down for lying | Because they "can" lengthen a flaccid penis. Granted, you don't want a longer member when it is flaccid, but they don't promise you will be longer erect. What Smiling Bob has is looser muscles in his genital region that makes him look bigger until he gets erect. They don't lie, they just don't make the promise you want... |
Why do soldiers/people tap their gun magazines against their helmets/guns before loading it? | It is meant to settle the rounds properly in the magazine to prevent a misfire. [Sources.]', "Make sure the rounds are seated correctly. Occasionally the spring can get locked to the bottom of the magazine, or rounds can slide out of place. It's especially noticable with the top rounds which can slide partly out of the... |
Why were Apple's new products approved and allowed to be sold? Did nobody realise that there'd be backlash? How/Why can Apple keep getting away with this stuff? | Apple has been removing plugs and selling expensive adapters for the past few years. The Macbook Pro Retina is the same way. What they have noticed is that it doesn't hurt their sales, and boosts sales of $40 adapters that people lose weekly. Businesses that run on Macbooks and iMacs buy hundreds of these adapters. The... |
Why is it more acceptable to smoke a cigar to celebrate, but not cigarettes? | A cigar is expensive and uncommon, which makes it special, whereas a cigarette is cheap and ordinary. As far as being a tobacco product, you don't inhale cigars. Cigar smoke is far more acidic than cigarette smoke, meaning the nicotine is readily absorbed through the mouth. Cigarette smoke needs to be inhaled. The rate... |
Why are we censored from discussing the Z0e Quinn scandal because of "doxxing concerns" yet we are daily allowed to post images of people and make fun of them without their permission? | The simple answer is reddit is full of white knight cowards. Reddit wouldn't be as popular as it is if it didn't cater to the majority view. As of now the majority view is women are default victims and should be protected no matter what. Whatever they've done to warrant it is irrelevant, hell you're not even allowed to... |
If I've had chicken pox before and donate blood to someone who hasn't, will them become immune too? | No. Short answer: Blood is split into three products; red cells, platelets, plasma. Most people who get 'blood' only get 'packed red cells.' Antibodies will reside in your plasma thus a transfusion typically does not confer passive immunity. |
How do math textbook writers come up with problems? | Normally, they work backwards. So, for example, if you had a question on factoring polynomials, I would multiply a bunch of binomials and monomials together. Then I get a fully factorable polynomial. For example, **x = 4x^3 -2x^2 +x This is normally super easy because math has inverses- some operation that undoes anoth... |
Someone told me a hangover is due to dehydration. Yet beer is mostly water. WTF? | The diuretic effect of alcohol causes more water loss than than is gained by drinking a beer. There was an AskScience question a couple of months back that figured that if you were drinking something around 4% alcohol by volume the effects would be about break even and you would avoid a hangover regardless of the amoun... |
How do services like Spotify and Tidal get their content? | Distribution companies, labels and publishing companies sign contracts with services like Tidal to allow them to use their catalogues. For example, my music is on Tidal. I give my distributor permission to add my catalogue onto any new streaming services I would like to include my content in. Copyright holders of music... |
Who invented/determined how long a second, minute, month, etc should be? | From another post on the same topic: > Putting 24 hours in a day came from the ancient Egyptians who split things up into 12, so there was a 12 hour day and 12 hour night. The 60 minutes in an hour and 60 seconds in a minute comes from the ancient Babylonians who liked to split things in base 60 . Basically, people hav... |
Why can't these algae towers be used to oxinigate terrestrial planets like Mars? | Production of an oxygen molecule via photosynthesis requires a water molecule. Algae farms like this probably will play a crucial role in making Mars habitable, but first we need to get the temperature up it gets down to 150 below on Mars. If we could boost the temperature a bit Mars would go into a self sustaining glo... |
why doesn't the president live smack dab in the middle of the united states rather than on the very east edge of it. | At the time the White House was built, Washington DC *was* smack dab in the middle of the United States.When they selected the location for the capital back in the late 1700s… Washington, DC was pretty much in the middle of the country… it was closer to the ocean than the middle proper because it had to have river acce... |
why do toilet seat covers come with the middle section perforated instead of ripped off completely? | The flap should go down the front so your pants/undies don't touch the nasty outside porcelain of the bowl. |
Why is it better to make self-driving cars from scratch as opposed to retro-fitting? | Well, Tesla is already making cars, so they can retro-fit them. Google wants to start from scratch so they can sell their own cars, instead of trying their hand licensing with an existing car brand, which would never happen. The down side with retro-fitting is that you have to retro-fit, whereas if you make it yourself... |
Why haven't we sent probes to any earth-like planets? | The Voyager spacecraft recently left the solar system, it took over a decade of flying straight outward to reach this point. To reach the nearest earth-like planet at the current top speed we can achieve with spacecraft it would take several hundred thousand years to get a probe to one. |
Why do we make grunting and squealing noises when we wake up that help us get out of bed? | You squeal when you wake up? I'm not entirely sure that that's normal. Are you a sow or a dolphin or something?", 'Primitive grunts and other basic noises are still being studied in humans. For decades weightlifters, martial artists, even construction workers were mocked for vocaluzing in various manners while performi... |
Why is pi so important mathematically? [Mathematics] | PI is the ratio of the circumference of a circle to the diameter. Turns out, it remains same for all circles. So, in units of this ratio, we can calculate a lot about all things that are circular or at times, curved. For example, you can use Pi to calculate the area of a circle. Then, say that a cylinder is just a lot ... |
Why hasn't the world try to create a unified global currency? | Because global economics is extremely complicated and volatile for such a thing. Just look at the income/cost disparity here in the USA alone. Now try to apply that all over the world and try to get people to agree upon which units of the same currency are worth which items/functions. It would be a mess. It's hard enou... |
Why do we use English names (Spain, Japan, India) for non-English places (España, Nippon, Bharat/Hindustan)? | Many languages have names for other countries in their own language. It's not racism, it's just familiarity. Example : America in Korean is 미국 which means land of rice and then they call Canada 카나다 which is simply pronounced Canada. It really depends on what language your using, that's all. |
top four visually impaired paralympians in the 1500 were faster than the gold medalist at rio olympics | Middle distance races are known for being very strategic. Runners will often start at a moderate pace, saving their energy to beat everyone else in a sprint to the finish. The lead runner typically dictates the pace and will try to keep things easy enough for themselves so that they can hang on and beat everyone else i... |
Is Olive Oil really good for your skin? If so, what does it do? | I wash my face at night with olive oil. I spread on a thin layer and massage it in, then wipe my skin with a damp, hot washcloth. No soap. I have combination skin and it keeps my skin from overproducing oil in oily spots and getting red patches in the dry spots. The oil removes make up very well. My eyelashes appeared ... |
Habeas Corpus (US Law) | If you are confined by the government, you have the right to be brought before a judge and challenge your confinement. This typically applies only to people who have not been convicted of a crime, and are merely being held against their will. It is a check against law enforcement locking you up without due process. *Ha... |
Why do I always find spiders in my bathtub? | Spiders are drawn to sources of water like the kitchen or the bathroom. Oftentimes, though, spiders may just get stuck in the bathtub since it is usually curved with a slick surface. This makes it difficult to form a web, let alone crawl out with ease. |
what determines if someone's profession gives them a new title (Dr., Prof., Rev., etc)? | These are *courtesy titles*, established through long social usage. In most cases, they are used when a person addresses someone "superior" to them. For example, a student addresses his professor with that title to show respect, just as a lay person used "Reverend" for his priest. A doctor is seen as distinguished for ... |
How come further away mountain/hill ranges are bluer than the closer ones? | Raleigh scattering. What color is the sky? Blue. What happens if you look through a few miles of sky? It gets a blue tint.The water in your cup is clear right? But the ocean is blue. This is because the water in your cup isn't actually perfectly clear, but you need alot of it for the colour to be noticeable. The same i... |
How can cell companies like Verizon, AT & T, and Cricket all claim to cover more customers than any other company? | "Cover" doesn't mean they have those customers. Coverage means that their networks are *available* to those specific regions that 90% or more of Americans live in. |
How did the leadership of the US allow trade policies and tax laws that ruined our manufacturing sector and destroyed good middle class jobs. | Lobbying and container ships made foreign manufacturing more accessible. USA still manufactures many things but less low end goods.The way you worded the question makes it seem like you've really got an agenda. |
Why is someone who sends messages called a messenger, not a messager. | English speakers decided it was sometimes fun to put an "n" in words around the 1300 - 1400s. For example, messager became messenger, passager became passenger, scavager became scavenger , and herbiger became harbinger. This is purely speculative, but a lot of these words probably had different pronunciations than they... |
North Carolina's bathroom situation | Conservative politicians are trying to deny people the right to use the restroom assigned to the gender they identify with. Edit: It's pretty simple and shouldn't be an issue, and never was until conservative politicians needed a replacement for the gay marriage issue. |
Why are ocean animals dying all around the world in mass sums? | We are. There's quite a few things happening that's altering the ocean's ecology. On one side we have overfishing, wich is messing up the food cycle. Prey animals diminishing in numbers or predators because humans eat them. A lot of CO2 is being added to the atmosphere, this dissolves in water creating carbonic acid, t... |
Different burn degrees/types of burns. | Medicine is actually moving away from 1st, 2nd, and 3rd degree burns, so I've included both the old and new terms for clarity. Also note that the term 4th degree is no longer used, instead it is called an internal burn. I'd also like to point out to /u/bobwarth that no burns go down to the bone or burn off body parts; ... |
Why Texas Instruments and companies like College Board haven't been sued for antitrust and collusion violations | Here is a list of the calculators allowed, taken from [their website]: The following calculators are permitted: - Four-function calculators: Although not recommended, any four-function calculator is permitted. - Scientific calculators: Any scientific calculator is permitted. - Graphing calculators: The following graphi... |
Why do people with Alzheimer's still recognize music from their past? | Because memory isn't just one section of the brain. So one area might be affected more than the other, so you might not remember your kids faces but music is still intact. |
Why can your mouth tolerate hotter food than your hands? | As someone that worked as a dishwasher once upon a time, my hands can tolerate a whole bunch more heat than my mouthYour hands are typically not covered with liquid. Your mouth is typically covered with saliva. Saliva provides at least a modicum of protection against burning.It can't. It just feels like it can. Tissues... |
How kids/people on busses don't have to wear seatbelts, while in any other car, you do. | School buses are already much safer than normal cars. Firstly, buses are much heavier than cars so if someone Rams into you, you'll get a much smaller jolt. Secondly, kids on the bus sit higher than normal cars, so even someone directly getting the bus won't directly hit a kid. Thirdly, most school buses have seats mad... |
How do B cell lymphocytes become APC | B cells possess specific antibodies so that they only bind to one specific antigen . If binding occurs, the B cell engulfs the antigen and breaks it down into small pieces. Some of these small pieces, the protein ones, attached to another protein called major histocompatibility complex , which are non-specific proteins... |
Why do human mothers tend to experience a self-esteem dip for three years after giving birth to a child? | Hormones. This is one of the reasons why doctor's actually suggest not even planning a second until your first child is at least 2 years of age. I note that for some women it gets worse with every child. My mom had 4 kids.. she was getting really bad.. I was the oldest. She wanted more but the doctors told her not to h... |
Why is it that girls that live together eventually have the same menstrual cycle? | The current understanding is that is an erroneous theory:_URL_0_ As the article above states: > The experience of synchrony may be the result of the mathematical fact that menstrual cycles of different frequencies repeatedly converge and diverge over time and not due to a process of synchronization.[12] It may also be ... |
Why do some people think Stanley Kubrick faked the moon landing? | Conspiracy theorists always like to latch onto things that they didn't see with their own eyes and figure out how it is faked. 2001: A Space Odyssey was made a year before a man walked on the moon and yet was amazingly accurate about what it would be like. So, Kubrick had the set for it and the actual moon landing look... |
I was in a streetfight. Afterwards, I was shaking uncontrollably and stammering - what's going on? | Adrenaline dump. Your body no longer needs the adrenaline but it's still in there. You're describing the physiological effects. |
Why does speeding up or slowing down a record change pitch? | Pitch is measured in the number of vibrations in the sound, per second. If I speak or sing, I can control both the pitch and speed, so I can alter one without affecting the other. I can talk slowly without sounding unusually deep, or I can speak in a high pitch without talking very quickly. If we speed up or slow down ... |
Why does looking at a light source trigger a sneeze? | The nerve cluster involved with sneezing is very close to the optic nerve. It is a common genetic trait to have a thin enough nerve sheath around the optic nerve that when it is at high energy it can discharge some of that energy into the surrounding nerve clusters, and if it discharges enough into the sneeze nerves, t... |
if you can't film CRT TVs properly because the screen refresh rate is out of synch with the camera's shutter speed, how to filmmakers create shots with CRT TVs playing normally? | > if you can't film CRT TVs properly because the screen refresh rate is out of synch with the camera's shutter speed, how to filmmakers create shots with CRT TVs playing normally? There are two good ways: You could synchronize the shutter speed with the refresh rate of the CRT, or you could have it show a blue or green... |
Why does it seem like more and more people these days have medical problems? | Living longer, more inactivity and obesity, more access to care rather than ignoring issues, more willingness to speak about health generally.You're getting older. You're probably surrounded by older people & all your friends are older too. That's a lot bigger of a factor than any cultural changes in the last 10-20 yea... |
why does my eye feel like it's twitching whenever I'm tired? | I'm not sure of the mechanism. I have had similar issues, and discussed it with my neurologist. He told me that facial twitches are usually caused by caffeine; lack of sleep; and/or stress. |
What does 'cdn' in a url mean? | CDN stands for Content Delivery Network. If a web site have a lot of images and videos they might go to a provider that have better infrastructure to deliver the content to the client. As they often have some dynamic elements and some static elements they need a separate domain so the clients know where to get the diff... |
Why can't I not read text when I see it? | It's all about how we process things, because we're taught from a young age that letters go together in a certain way and create certain sounds that's what those mean to us. When you see hieroglyphics those don't immediately form words in your head but when you see something in a foreign language using the same alphabe... |
Would I gain the same amount of weight if I ate 5,000 calories one day and 1,000 the next compared to 3,000 calories both days? | Not necessarily. How many calories you can metabolize in a day is not unlimited. I assume it varies person to person but 5000 might not be enough that some goes to waste . I'm not sure how you would find out at what point your metabolism starts losing efficiency, but I'm guessing that's the essence of your question. |
How do traffic jams start? What is the science behind them? | I don't know how to post links from my phone but there is a mythbusters episode about that exact thing. The gist of there findings was that traffic needs to be a little congested first and then one person brakes slightly from something causing the person behind them to break longer and so on and so on until people are ... |
How do we know that cats can not taste "sweet" | People have observed that cats don't seem to have a preference for sweet foods. In a genetic study, they sequenced the cats' DNA and looked at the genes that make the proteins that are required for the particular taste buds that detect sweetness. They compared it with the same genes in other animals and found that alth... |
Are new born childs genetically predispositioned with their parents behaviors/abilities? | The general answer is yes, genes inherited from the child's parents will predispose that child to certain traits and abilities. This does not mean their genes absolutely determine what they'll be capable of achieving or performing. Even identical twins with the same genes from their parents will differ in terms of what... |
How do high school grades in the USA (or other countries for that matter) work? | A = 90-100% B = 80-89% C = 70-79% D = 60-69% F = 0-59% Generally, C and above is considered passing with C being seen as "average", B as "above average" and A as "excellent". D, being rated as "below-average" is sometimes given a pass, I think that depends on the school though. So on a 10 question quiz, you would gener... |
if our body has immune system, why do we still get sick? | Because it isn't perfect. Because a lot of different things have evolved to try to get us sick and sometimes they work. Because oru dumb asses don't wash our hands after we take a shit so we end up eating our own poo and get sick that way. Or because we don't eat well or sleep or take care of ourselves as much as we sh... |
Why does a bag of potato chips "poof up" when you go to a higher altitude? | When the chips were produced and bagged, it sealed in some air that was at normal atmospheric pressure. When you went to Flag, you also went up in altitude, where the pressure is lower. That causes the bag to poof up. |
Why was the system successful yet the French Revolutionary time was not? | 1. The devices for measuring length & weight are relatively simple; you can establish any arbitrary length as the standard. But clocks are complex devices. Any attempt to re-invent to standard would involve scrapping all existing time keeping devices, and by 1799 there were many. 2. Once again, the standard units for l... |
Why does beer foam out violently when you hit the top of a bottle? | When you hit the top in the right way, you essentially cause the bottle to move downwards faster than the liquid does, forming a tiny empty spot between the bottom of the liquid and the bottom of the glass. This causes the liquid to fall back down onto the glass bottom, which results in it foaming up a lot like if you ... |
When I transfer money from my account to a different account, does any physical money *ever* move? | > So no physical money ever leaves place A and goes to place B when I do money transfer? This is correct. When i worked at Manufacturer's Hanover trust in the 90's, transfers between banks were just a batch job run everynight night on a system 3x it's just one bank's computer telling another bank's computer "hey, you n... |
Why do I have a much harder time waking up in the morning now that I'm older? | Do you hate your job, school, general life situation? When you're younger there's a lot of potential, you get excited by the idea that someday you may be an astronaut or surgeon. If you're career or love life or body isn't what you want it to be when you're older, you tend to imagine less and just get down about things... |
Why am ok with up to 8 hours of sleep, but tired if I sleep over 10 hours straight? | It's to do with sleep cycles, if you wake up in the middle of one you wake up more tired but if you wake up towards the start or end you are more refreshed. |
Why the roof of my mouth feels destroyed after eating some foods a lot? | There are various ways of preserving food: salt , sugar , acid , heat , and cold . Preservation of food prevents the original food items from living and prevents bad things from living off of it. The roof of your mouth is alive and does not want to be preserved. Exposing it to too much of any of those mentioned above w... |
How do those "super mathmetican" seemingly know everything even though they're in their teen ages? | Those are not super mathematicians, but people who are good with multiplying numbers. Math is about so much more than being able to do that and the more complex it gets the less numbers you seeMemorization, and lots of clever tricks can be used to calculate large numbers quickly. Usually not numbers *that* large though... |
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