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How do birth marks occur | The human body is extremely complicated and the developmental process needs billions of cells to trigger the right sequences in the right order at the right time. Occasionally mistakes are made. Some are catastrophic and the fetus never develops. Some are severe and the baby is significantly malformed. Most are minor. ... |
Why does sucking on your finger after you get a small cut or crush it seem to help with the pain? | A natural painkiller found in saliva that is stronger than morphine named Opiorphin is present to help dampen the pain. It works by stopping the normal breakup of enkephalins, natural pain-killing opioids in the spinal cord. Disclaimer: Not a doctorPain exists, in part, to say "Hey, doofus, I'm hurt! Pay attention to m... |
why if there are no nerves in the brain, do we feel headaches and itchiness? | The brain has nerves It's made of nerves. It has no pain receptors though so that's why you can not feel it when the surgeon is cutting into it. Also the brain is very resilient, and things that control vital functions are deep near the brainstem. so as long as you're careful where you cut you're fine. Although your br... |
Why are electric vehicles more carbon efficient? The electricity comes from power plants, right? | A car engine turns about 30% of the energy from gas into motion. The other 70% is lost as heat. Power plants that use fossil fuels use the heat from burning fuel to heat water that turn a generator. This is a more efficient conversion of the energy. Add to that, that not all of the electricity is generated by fossil fu... |
In the Monty Hall problem, why is switching doors have a higher chance of being the correct door? | Change it to 100 doors, you choose one and they open 98 wrong doors, do you stick with your initial 1/100 pick, or the new pick? |
The Friendship Paradox. How can the average person's friends have more friends then them? | Imagine you have six people: Alice, Bob, Charlie, Dave, Eric, and Zorp. A-E are all friends with Zorp but not with each other. Zorp has 5 friends, all the others have 1. On average, each person's friend has more friends than them, because 5 have only one friend who has 5 friends. Only one person has friends with fewer ... |
Why is Africa by Toto trending so hard right now? | Weezer responded to a meme requesting them to cover Africa. They complied. It's not too bad of a cover, if you are in to Weezer.[This article ] does a pretty good job explaining it, at least better than I ever could. |
how do they make medicine that targets certain parts of the body? | If you're talking about designer medication then that is coming around the corner. Many medications were found by accident and many were found with a lot of investigative work. Coumadin, a very popular blood thinner was actually used as rat poison. They found that rats were dying not by poisoning but when they get cut ... |
How are electronic toothbrushes better than manual toothbrushes? | The question is slightly loaded, in the sense that it assumes that electric toothbrushes really are better. This hasn't always been accepted scientifically. This [2015 Consumer Reports article] asserts that they used to say it made no difference, but recently came across an analysis by a company named Cochrane indicati... |
The difference between a Hydrogen Bomb and a Nuclear bomb? | Try reading the identical thread a couple hours ago. Or any of the other identical threads throughout the years with this exact question. _URL_0_ To answer your question, a hydrogen bomb is a type of nuclear bomb. There are types of nuclear bombs that are not hydrogen bombs, as well. |
Why is taking a hot shower refreshing, but why is standing outside on a humid day miserable? | Because you are wet and naked. Part of the unpleasantness of humidity is the way your sweat makes your clothes stick to you. |
The star HR 5171; a super massive binary star with it's "twin" in contact with it. | Stars are made entirely of gas, so there are no solid surfaces to be in contact with each other. However, the fluid friction of their envelopes in contact will most likely *gradually* slow down their orbits until they merge and form one even larger star. |
Can an ISP see what YouTube videos a customer is watching or have watched | Yes, an ISP can see all traffic that goes from you through them to another source, and back. They can't read it all, since much of it is encrypted, but they can generally see all domains you are accessing. this is nothing new, this is how the internet works. |
Why are Tattoos permanent when skin cells constantly replace themselves? | because its placed under the skin rather then the flaky outer cells', "There are two major layers of your skin, the epidermis , that constantly replaces itself from the bottom up about every 2 weeks, and the dermis , that does replace itself but at a much slower rate . Tattoo ink bypasses the epidermis and is inserted ... |
Why is the protein folded in a prion and why does that make it dangerous? | Like Goosegoosepress said - almost all proteins are folded, which gives the protein a specific purpose or function. A prion is like a rebel without a cause protein.A prion will take other proteins, and either unfold them or fold them differently. This most often effects proteins in your brain, causing encephalitis. To ... |
How do cameras take pictures? Both digital and film | In the very basic sense, a camera just captures light. That's all it does. The lenses and things we see on camera are there to tweak and optimize that light. Film cameras use a photographic film that is EXPOSED to the light for a fraction of a moment. The light coming in from the little hole in the front land on this f... |
How can conspiracy to commit copyright infringement be a crime when copyright infringement is a civil matter? | I'm not sure what you're asking. A law like that is no more difficult to pass than any other law; if it follows the standard approval process for laws, it's been passed. |
Why would Dzokhar plead "not guilty"? | All of these answers are wrong: At this point in the case, the prosecutors won't allow a 'guilty' plea. His preliminary plea is therefore automatically 'not guilty' . At a later point, when certain presentations of evidence or other clarifications of just what, exactly, it is that he is guilty of, a judge would be will... |
How do earthworms dig? | Earthworms eat the dirt and pass it through their body collecting the nutrients from decaying plant matter and leave little piles of worm poop at the top of the hole called castings. |
Why do we "awww" when we see something cute? | A fair explanation is that it's an evolutionary response to prevent us from killing our young. "Cute", as it's generally thought of, tends to be things that have disproportionally large heads, hands, feet, or eyes. Similarly, clumsiness, bashfulness, and several similar traits are considered "cute". Put simply, these a... |
How does music make us feel emotions? | There is considerable debate as to whether or not the emotions we feel from music are even real. Here are a coupe of links I dug up a few months ago for some other thread: [One] discusses a finding that the emotions from music are neurologically mediated by mirror neurons; meaning that they are not real emotions, but y... |
If the solar system is moving, where is it going? | Round and round the Galaxy. One orbit every 250 million years. Though movement is always relative.The solar system is moving in several different ways. The one you're probably thinking of is around the Milky Way. The theory is that there is/are super massive black hole at the center of the Milky Way. These cause all of... |
How involved is China in Africa? You don't hear much in the mainstream media, but I hear China now owns a lot of Africa | China has given a lot of "loans" to African nations, primarily because Western nations put restrictions on giving loans to African nations On top of it, Western banks charge very high interests on loans to Africa, because of the inherent high risks of businesses in the region, where there are rebels, etc. So, China, wi... |
What is happening when something is on fire? | There was actually a contest from Alan Alda and the The Center for Communicating Science to explain fire to an 11 year old. This was the winning entry:_URL_0_ To simplify, combustion is when hydrogen and carbon molecules in a fuel source item are being combined with the oxygen in the air to create three new things: car... |
Why would sticking a fork in a socket cause any current to go through you? Wouldn't the shortest path for the current to go from one leg of the fork to the other? | In most situations it won't. Done correctly, at least. But consider this: You insert the fork crooked, so it touches the hot contact but not the neutral. The fork is now live, and is seeking a ground. You are standing on a concrete floor and not wearing any shoes. Zap! There are other dangers aside from getting shocked... |
Why would it be ok for ISPs to sell your browsing information, but not ok for the NSA to spy on your browsing information? | It is not ok. The people who support this do not have the interests of the consumer as their top priority. |
How do submarine-launched missile get to the surface to a point where they can ignite? | - The missile is contained in a special canister - When the missile is launched, the water rushing into the launch tube , pushes the canister to the surface - When it reaches the surface, the canister bursts open and the missile engine starts up - The missile does its thing |
The difference between chamfered and beveled. | Chamfer - a cut that is made in wood or some other material, usually at a 45° angle to the adjacent principal faces. A break in the corner. Meaning that the corner looks like it was taken off, and forms a flat area. Bevel - reduce to a sloping edge. Like a chamfer, but encompasses the entire edge. So it looks like an a... |
How were engines and transmissions built "back in the day" (early to mid 1900s) | They were built to lower tolerances and were more noisy, less efficient, less powerful, and less reliableThey had manual machinists skilled enough to create parts within that tolerances. Also, there are manual machines and devices that help you. That said, there will be out tolerance parts and some of them will be scra... |
What does "fat burns in a carbohydrate flame" mean? | To explain it very shortly: The body needs a molecule named pyruvate to burn fatty acids efficiently. The main source of pyruvate is glucose, which is a sugar. Most sugars can either be converted into glucose very easily, or be converted to pyruvate efficiently. The body can also convert fatty acids into pyruvate, but ... |
What's this red dot on AdviceAnimals? | It's created by this bit of CSS {position:fixed;top:265px;right:1180px;z-index:1000;margin:0;padding:0;text-indent:-99999px;display:block;background:red;height:2px;width:1px} But, why it's there? Probably just to piss you off. Literally. I'm betting it's there just to annoy people. |
How does peeing after sex prevent UTIs? | Peeing flushes out the urinary tract 'forcefully.' By doing so, you prevent all manner of 'bad stuff' from sitting there.Urine is acidic, so it can "clean" your urinary tract of bacteria that do not appreciate acidity. It also flushes out surface bacteria through the force of movement. You're essentially just "cleaning... |
why is Staten island so rundown and underdeveloped when it is so close to Manhattan? | For one thing, it has had one of the largest landfills in the world, which puts some people off. For another, you said it there - the main way to access it is the ferry. If you want to travel from Brooklyn, Queens, Bronx, or Jersey City/Hoboken to the city, you can just take a train or drive over a single bridge. Top o... |
Why does your stomach "drop"? how far do you have to fall for it to "drop"? | By stomach drop, I am assuming you mean when you feel a floaty sensation in your stomach when you freefall. Most of your internal organs are not really 'locked' to your body. They just float around, dangling in the internal cavity. As such, their movement is mostly independent from your body, and have their own inertia... |
What does the web server Apache do, and why is it so darn popular? | It serves web pages. When you tell your browser to go to _URL_0_, it sends off a request to Reddit's computers; those computers are running a web server like Apache, which puts together the HTML file and send it back. Apache is one of perhaps four web servers that have large market share. * **Apache** is the most widel... |
Is there are reason that most animals require a male and a female to breed? Wouldn't it make more sense of every animal in the species could reproduce on their own? | A benefit is that you would get more genetic diversity, which is very important to a population. If every species reproduced asexually - a ton do - the genetic diversity among the population would be very small. Sexual reproduction isn't the oldest kind of reproduction, obviously asexual reproduction is. There is a rea... |
Does Google Maps (or any GPS system) calculate arrival time based on if you were doing the speed limit the whole time? | Google and the other traffic apps use real time data from other users of the app. Imagine 30000+ Android users supplying data to Google at rush hour. That would lead to very exact travel times.On a mostly empty road, yes most applications will assume you are traveling at the posted speed limit. However, with a program ... |
Why do VPN companies not get sued for downloading illegal torrents? | For the same reason syringe manufacturers aren't sued for enabling heroine users; these companies have perfectly legitimate uses for their services, it's not their fault that some of their users are abusing it for illegal purposes. |
Why is it that I'm more hungry in the morning if I eat right before bed? | Your body goes into a fasting stage when you sleep but when you eat directly before bed it disrupts this. Also if you had a bunch of carbs your blood sugar would go up and crash. |
Why are some gas pumps super fast and some painfully slow? | It has nothing to do with you. It is most likely related to the power input to the pumps. If the pump is at the end of the line, or multiple pumps are running simultaneously, then yours will be slow. |
When a lot of people die in one event, such as a natural disaster or 9/11, how do insurance companies pay everybody? | To reduce risk from large disasters, insurance companies have their own insurance! It's called reinsurance, and it's a specialty field dominated by a few expert companies that don't sell ordinary insuranceInsurance companies buy insurance too, to safe-guard against big disasters. They can buy this insurance from a big ... |
What purpose do the sinuses serve? What problems would there be if they didn't exist? | I know that saying JFGI isn't in the spirit of ELI5, but seriously the wikipedia article is about as ELI5 as can possibly be: _URL_0_ |
What prevents our bodies from decomposing while we're still alive? | Decomposition is mostly the work of bacteria and fungi. Our immune system does a pretty good job of keeping them from doing that as long as we're alive.Our immune system kills off the bacteria which would otherwise start to consume our body, resulting in decomposition. If you cut off the blood supply and prevent the im... |
Why is the situation in Somalia always so bad? | Somalia had a civil war in the 1980's and since then has had no unified government. Somalia is ruled by different clans. Somalia is also very very poor. Now when you have a bunch of very poor people ruling themselves they will do pretty much whatever they can to survive, including crime and violence, lots of violence. ... |
–Why do I always see really popular AMA, like 5-7 hours after there posted. And never relatively soon on the front page? | The front page takes recent, top posts from your subscribed subreddits. Logically, if the AMA is newish, it won't have that many votes. Therefore, it won't be a top post , and you won't find it on your front page. |
The different championships in boxing | there's really 4 major titles; WBA, WBC, IBF and WBO. There used to be 1, then there was the WBA and WBC in Ali's day, then the IBF was created by other guys splitting off, then some other guys created the WBO. It doesn't stop there either, there's the IBO, the WBF, the WBU, but people don't really pay much attention t... |
Why do most people cry when they are really angry? | I have also read that the limbic system, which is made up of many parts and is responsible for emotional processing, cannot tell the difference between being happy and sad, or in this case angry. It only recognizes the magnitude of emotion being felt and responds accordingly. With tears.I once read that it is like that... |
Why are a bakers dozen one more than an actual dozen? | There are a few competing explanations. The most common one is that a baker who had an order of a dozen would bake 13 in case something was wrong with one of them. Laws on bakery were apparently very tight in the ancient world, so overdelivering by one item was a way to make sure you wouldn't get into any trouble for s... |
What does a federal interest rate hike mean? | The rate at which the Federal Reserve loans money to banks will go up, thus also causing the banks to raise the interest rates to the consumer. This would normally be done when the economy is doing well, as then there would be increased levels of inflation. This is mostly done to curb inflation. |
Why is cocaine ingested through the nose? Like, isn't there a better way to get it into the body? | The mucus membrane is where cocaine and other powdered dry substances are most quickly delivered to the bloodstream and is most directly accessed via the nasal cavityIt can also be smoked or injected. Snorting may be the easiest way to control doses. Regardless, it a dangerous drug.Firstly, the cocaine which is snorted... |
What jurisdiction does the USADA have to take away Lance Armstrong's 7 Tour de France titles? | It's funny that all the runner-ups also got caught doping years later. so taking the titles from armstrong might award other dubious athletes.everyone in the damn sport is dirty, who really gives a flying fuck?I call shenanigans. Everything about this seems funny. If he was doping they should have caught him years ago ... |
Physicians of reddit, how do you choose your maintenance IV fluids for your acute patients? | I believe you may have meant to ask this in /r/askreddit, /r/askscience, or /r/asksciencediscussion. Best of luck to you though! |
How does someone get radicalised? | The same way anyone learns their values and life direction, just in a more isolated environment with a contrived intent on behalf of the people indoctrinating them. |
How are scientists able to look at distant planets and determine their gravity? | By measuring the velocity of the planet's orbit and using the laws of conservation of angular momentum they can calculate the mass of the planet. The gravitational pull of a planet will depend on its mass. They can tell things like raining diamonds on Saturn by analyzing spectra and determining the chemical composition... |
How are Christmas trees profitable | Most are grown on farms similar to other crops. They are often trimmed and shaped through their growing process so that they maintain a more "tradition looking" Christmas tree shape, as opposed to the average fir or pine you might see growing wild. They are often planted in rotations and are used in more than just tree... |
What is the benefit of making/using charcoal as opposed to regular wood? | While wood has more potential energy, a lot of it is wasted evaporating/boiling water and other noncombustible impurities. By heating wood slowly in the absence of oxygen, these impurities are removed, leaving mostly the combustibles. This makes charcoal lighter, yet because it is porous and lacks the noncombustibles, ... |
How do top chess players look so many moves ahead? | Most of them don't look at all possible combinations. They only look for moves that they think are likely for an opponent . Also, they are familiar with particular positions. They know which positions to try to get to and which positions to avoid at all costs. So they aren't actually looking at every single possible co... |
What was "agent orange"? | It was a herbicide, a defoliating agent. They used it in Vietnam to remove all vegetation. It is chemical warfare, very very bad for anyone involved, the people spraying it, the people getting sprayed on. People in the US military used to spray each other to cool off with the stuff. Basically, it was used to remove the... |
Chicago Cubs buying 2016 World Series win | Yankees do it every year. Basically you get all the best free agents. So your paying the most money for your teamExcept almost all of their best players were drafted or traded for . |
Brexit - how the referendum works, why?, and the potential consequences | As a part of his campaign to get reelected David Cameron promised to hold a referendum about the UK leaving the EU. He did so because in the preceding EU elections UKIP a party advocating for the BREXIT won a majority of votes and took over many of voters who are traditionally Tories. He got elected and kept his promis... |
What does 20/20 eyesight mean? How can someone have better than 20/20 vision? | Optometry student here: All of the other replies are wrong. The top number is the distance you are measuring visual acuity at: usually 20 feet. The bottom number is the angular measure of the letter: its based on a unit of measurment called the "foot-letter". A 20 foot-letter makes a 5 arc min angle on the retina when ... |
In Formula 1, why is there a Mercedes Team and a Williams-Mercedes Team? | The Mercedes Team is the *factory* team, as in it's controlled and funded entirely by Mercedes the car manufacturing company. Williams Grand Prix Engineering is a privately-owned and funded team, it currently uses cars that use a Mercedes Engine, but the car is built by Williams to their own specifications. If they wer... |
Why does shaking a carbonated beverage cause the C02 to fizz out? | Pressure helps keep the carbonation in soda. If you shake it, all of the fluid speeds up. As speed increases in a fluid, pressure decreases. As pressure decreases, the gas can escape the liquid it is dissolved in. Eli25: Bernoulli's principle combines with reduced solubility of gasses in a liquid at lower pressures.Whe... |
Why do ringback tones have such bad audio quality? | I just steal this answer from google:Bad Technology: Companies face a collection of hurdles in delivering anything resembling quality audio over telephone systems which aren’t designed to carry music. “Land line telephone lines are optimized for voice not music.” explains Stevens, adding, “In general, many of the frequ... |
If medical marijuana was approved on a federal level in America, would it automatically stop being a schedule I drug? | For it to be approved on the federal level as medical it would have to be rescheduled. So yes but the other way around', "Isn't it the definition of a schedule one drug that it doesn't have practical or medicinal purposes", 'Sorry, but you guys on here are incorrect. The controlled substance act was an enabling law tha... |
How does clicking a link cause your computer to receive malware? | Often there is more to it and "virus" can be used to mean a whole host of negative things. A link basically points to a computer somewhere else on the internet. Normally its a big server somewhere that stores the web pages you want to see. When you click a link, you're telling your browser to ask that computer to send ... |
Do fish in schools communicate to stay together or is it pure instinct? Do fish communicate at all? | There is no leader. Basically when one fish moves, the surrounding fish move with it, which causes the fish surrounding them to move etc. etc. until the entire school changes direction. They don't communicate, and they instinctively group together because the ones that don't have the instinct get eaten and thus don't h... |
Are satellites stationary with the earth spinning underneath them, or are they rotating in addition to the earths rotation. | First of all, don't base your understanding of physics on any movie. Gravity might be fairly accurate with some things and very unrealistic with others, so even that is a poor thing to learn from if you don't know which bits are realistic. As for your actual question, the whole concept of orbit is based on the idea tha... |
This gif. How is this possible? | The guy has a massive hernia, a break in his abdominal wall. When he tenses his abdominal muscles the increase in pressure pushes some of his viscera outside of the abdomen and into a skin pouch which has apparently stretched from the pressure over time to accommodate it. |
How was the internet created with out the internet. | The internet isn't a specific 'thing\'; there is no [internet box] that you can point to and say, "that's the internet!" The internet is an abstract term applied to a series of computer networks of an indeterminate number greater than one. This is important because prior to the networking of two distinct networks toget... |
Why can't I ball a fist when I first wake up? | Your body paralyzes itself so you don't flop all over while dreaming. This takes a while to completely wear off upon waking. |
How is Canada affected by Iran entering back into the oil economy? | Oil is a big export for Canada. Currently, Canada is the #1 supplier of oil to the United States. With Iran participating in the oil economy, it creates increased competition, which can drive prices down. |
why do different antivirus programs recognize each other as threats? | Because a lot of anti-virus signatures use string matching in order to detect malicious software. In order for a program to search for a string, it must have that string. Imagine we are trying to detect a virus that you wrote. In fact, we want to detect every one that you have wrote, or will write. One signature that w... |
What exactly is processed cheese and is it bad for us? | Processed cheese starts as regular cheese, but is mixed with vegetable oils and salt. Emulsifiers and gums are added to make the texture that Americans demand . They can also add food coloring and flavorings. There are lots of different kinds of processed cheese, and each one has its own texture, color, and flavor. The... |
Why does Meth flourish in rural areas? | Meth is a drug that requires less energy to produce then many other organic drugs such as cocaine, marijuana, or heroin. All the above drugs are usually synthesized from plants which ether require a large open area exposed to sun , or a system of lights to provide energy for the plants to grow. For industrial drug prod... |
Why is the big blizzard on the east coast coming from the south and not the north? | Sometimes cold dry high pressure from the north hits very moisture dense low pressure air from the south and clouds when they hit each other, snow happens. |
How do handheld speed detectors work? | Cop here: There's RADAR and LIDAR, and both work in similar ways. You shoot a beam at a car. The beam bounces off of a car and returns to the device. It then shoots another beam. The device then measures the difference in the distance between the two hits and determines the speed of the object. |
Why are Macbooks so popular when there are PCs with much better specs and are cheaper? | Good company image, brand loyalty, and people seem to like the operating system. They are also good for technical stuff, but that's not why they're popular now. |
Why do all the balloons in this link gif not pop instantly? | Could it also be that the balloons are opaque, therefore the laser is not passing through them simultaneously, but rather only one at a time as each one pops?', "It's not the light that's causing the delay, it's the nature of the balloons themselves, as well as standard thermodynamics. Not all balloons are alike, and d... |
Why is the passive voice so reviled? | English has a Subject-Verb-Object sentence structure. If you are a native english speaker that is how you think also. Passive voice takes on an Object-Verb-Subject order in general, which is unfamiliar and overcomplicated in most contexts. It also forces the reader to adopt a different pattern of thinking. Jimmy threw ... |
How are spaceships able to land on the Moon if it is constantly moving? | There is a cool game called Kerbal Space Program. [Here is a guide how to land on a Moon] Reality is pretty similar.How do you throw a ball to a man who is running? It's the same thing. Throw/propel the object so its path intersects the future path of the 2nd object so they will meet at the same point at the same time.... |
How can a company own the right to what's underneath your property? | Because the law was written that they could be separated. Some people had little to gain from the mineral wealth underneath their farmland because they didn't have the resources to extract it. They therefore sold off the mineral right to someone willing and able to use them. |
Why do people groan out loud when they have pain? | Nobody really knows an exact answer, but there are a few theories. One states that we cry out or groan in pain as an alert to others. Another suggests that yelling creates noise, which takes the emphasis of the pain away in our brains. Another theory is that it is meant to intimidate or scare whatever harmed you. These... |
How does out brain manage hormones? | Most hormones are stored throughout the body IE insulin pancreas, adrenaline kidneys. The brain monitors the levels of these hormones in the body, when a hormone release is required the brain essentially fires an electrical impulse that triggers the release of these hormones. |
How come there aren't more 'unethical' experiments? | If a scientist violates ethical guidelines, the consequences include: * Being ostracized by other scientists* Being fired from their job* Publishers refusing to touch the research* Professional licenses being revoked The primary reason you can't sign a waiver saying "if you pay me, I'm fine being unethically experiment... |
Music distribution and artist royalties | You're supporting the store. The artist got their money in royalties when the album was sold brand new. So, if it's a 40 year old album, the artist received their royalties 40 years ago. If you want to support the artist, purchase new things from them. Whether it's a CD or a download, they will get royalties from it. I... |
Why does moving your hand through hot water fast hurt more than it does moving it slow? | Your skin cools the water around it, making a layer of cooler water, which doesn't hurt so much. When you move your hand, you flush away this cooler layer and there's fresh hotter water ready to transfer its energy into your skin.There are two parts. First part, your nerves are not very good act detecting absolutes lik... |
I see this all the time in movies but never see what happens after - in the USA when your car is commandeered, how do you get your vehicle back? | That's mostly movie magic. In the US it's next to impossible to commander a vehicle for emergency use. A suspect fleeing is not important enough to justify that. To answer your question they likely would just check the registration or proof of insurance and contact the owner through that._URL_0_ Short answer:1) "The ba... |
what does Wear leveling and write amplification mean to pc users with SSD's? | In a SSD, due to the way the controllers work, there are "blocks" of memory . You have to rewrite the entire block at once to change any part of it - imagine a notebook where, in order to add a single sentence to the page, you had to erase the whole page and rewrite it with the new sentence added. "Write amplification"... |
The concept behind the 11 dimensions of M-Theory in quantum physics | Well, just imagine having more directions, in addition to left/right, up/down, backwards/forwards you also have lets say "zup/zdown" or something. Of course, imagining that is hard or impossible, but logically it makes sense and using math we can deal with it rather easily. The math of M-theory tells us that there real... |
The fine line between hospice care and assisted suicide | Assisted suicide is when doctors give a patient medication intended to kill them. Hospice care is when doctors and a patient decide that treatments that are supposed to cure this patient won't work anymore and is only hurting the patient, so they stop doing it. Once someone is in hospice, medical professionals are supp... |
why do your gums bleed if you don’t floss for awhile, but they’ll stop bleeding if you floss regularly? | It's a combination of things - and not all of them will be true for every individual. Firstly, people who don't floss have a higher incidence of gum disease. This can lead to the gums becoming inflamed and they will bleed when brushed or when eating. This is the most common cause of bleeding gums, and it can be at leas... |
How does my phone/laptop measure what percentage of its battery's charge is left? | Let's say a there is a battery with 2V. This battery may be full at 2V and 1V when allmost empty. Your phone or your laptop will take that voltage reading and will calculate how much power has left to your device. This is the way where you calculate the percentage by measuring the voltage. To be more specific your phon... |
Why do children fight against going to bed? | Kids don't know how to put themselves to sleep essentially. All their little brains know is "go go go!" and when you try to stop all what they know, they get upset and don't understand why you're trying to stop their nature. They'll even fight themselves and get cranky or more hyped. ever noticed how a kid will go ham ... |
How or why are people so strong when they do PCP? | Humans are much stronger than our day-to-day activities suggest. Normally our bodies limit themselves to keep us from injury, but when these limits get removed you get seemingly superhuman feats of strength. Examples of this are when you get thrown across a room from touching a live wire—it's actually your own muscles ... |
Why do I feel "tired" after sleeping more than ~10 hours? | For some people, the longer you sleep, the lower your cortisol level drops, which in turn lowers your energy level. |
How do spray on anesthesias work? | > How do spray on anesthesias work? There is no such thing as a spray on anesthesia as anesthesia is a state someone can be in. It is like saying "How do spray on sleeps work?" Instead you are probably thinking of spray on analgesics. In general a topical analgesic involves the use of chemicals which can be absorbed in... |
How are speakers “blown out”? What causes this and are they repairable? | Car speakers blow out when a mechanical or thermal failure results in a speaker no longer working like it’s supposed to. Mechanical failures typically happen when the cone in a speaker is made to move further than it was designed to do, and thermal failures happen when a speaker is hit with too much power and delicate ... |
how can some dominant genes (like polydactyly) be less common than the "norm" (like 10 fingers)? | Even if the allele is dominant, it does not mean the allele is common. For example, the brown eye color is dominant over the not brown eye color allele. In some countries, everyone has brown eyes. In others, like Northern Europe, barely anyone does. The brown allele just isn't common there. It's mostly not brown eyed p... |
Why do I fart more when I need to do a poo? How does the fart get around the poo? | Your poo is decaying. As it decays it releases methane, which is a fartThe poo channel are flexible, so gas can pass around solidsYou are not actually farting. The turd is just honking for right of wayThis is important and requires a serious answerA fart is merely a poo honking to pass. |
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