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The Uberman's Sleep Schedule... | If curious, I am a college student who found himself doing too many credits and needing more time in order to survive. I've been doing the Everyman sleep schedule for over a year now , and a polyphasic sleep schedule has really been a life-changer for me. To preface, I can't recommend it now because I have had many of ... |
After a woman gives birth and the organs fall back into place, is it possible for them to go back in the wrong way? | Prior to my wife's first pregnancy, she had continuous pains that we attributed to her stomach. The pains were sort of right around the bottom of the solar plexus. These pains went on for years. In 2006 she was pregnant and delivered in January 2007. Subsequent to her pregnancy the continuous pain simply went away. We ... |
Why are general ed classes in college required regardless of your major? | College is not a vocational training program. It's meant to make sure you're a generally educated person. |
In countries where people only use bidets and act disgusted by toilet paper, what do they use at concerts/festivals in port-a-johns? | Coming from someone that has never even seen a bidet IRL and really is totally unsure of how they even work, I just have one question After you pinch a loaf off in one, does it not blow it back up into your ass with the stream of water that's meant to clean you off? Do you use a regular toilet, and then move to a bidet... |
How are racing games able to show the time with an accuracy of 1/1,000 of a second when they run at only 60 FPS? | It's true the game might calculate movement/physics more often than once per frame. But not all do, and it doesn't need to. Say you're moving fast enough to travel 20 feet before the next frame, and the finish line is 0.5 feet away. You'll cross it in 1/40 of a frame's time. The game doesn't need to calculate your posi... |
- Why are all the bottoms of clouds have a flatness about them while the tops are very non uniform? | Air will cool at around 3.5 degrees per thousand feet. At some point rising air cools to it's dew point and clouds will form. Any continued upward movement will cause the puffy tops, but the base of the clouds can't exist below a certain altitude, hence flat bottoms. |
What makes buying insurance rational? | My brother used to work in insurance. He told me that statistically, every person gets into a car accident once every 11 years. Now, of course, that's just statistics. Of course there are people who get into multiple accidents in the span of 11 years, and those who never get into an accident even in multiples of 11 yea... |
Why is it ten-folds more difficult to sing and play guitar at the same times as compared to just singing or playing guitar? | Have you ever tried listening to music while writing? For most people this causes the writing to take longer, and it's harder to focus. Same idea. It's just that multitasking is hard and you have to be able to focus on two things at once. |
Do shipping companies just sit on packages if you choose a slow delivering speed? | The delivery guy literally sits on your package when you pick a lower dilivery speed. That's why when you get your package, it's all dented and disfigured. |
Now that I am no longer a climate change skeptic, how do we get rid of all this Co2? | The other comments have great answers on how to reduce the amount of CO2 you cause, but I want to point out why that's more important right now than removing it. Think of atmospheric CO2 as water in a big bathtub. Lots of us are little spouts adding water, and there's a drain way at the bottom. It's filling up because ... |
Why don't we like the taste of everything that's edible? | I do like everything that's edible, and trust me, you would too if you didn't have such ridiculous luxuries |
Why is this test able to predict your answer | Fuck, it got me. I thought red hammer was unique. Next time I'll choose turquoise needle-nose pliers.Nope, blue hammer. It might be that I already knew this trick so I came preparedPurple Sledgehammer for me. As to how? Statistics. The math part is a red herring. Ask people to think of a color: Most people will say red... |
Why do some numbers in a list end in st like 1st, and others end in nd and rd like, 2nd, and 3rd? | best".2. "Second" is a word that means "next" or "following".3. "Third" is an example of "metathesis", which is when letters are swapped inside a word. The word was originally "thridda" , but the "r" and "i" became swapped over. The "d" is related phonetically to the more usual "-th" ending. For a long time, "third" an... |
If black is just our way of perceiving a lack of light being reflected off of a surface, how can we have "shiny black" such as oil, black plastic and asphalt? | When you see something, you're really seeing light that has bounced off of it. Some surfaces reflect light differently. Rough surfaces tend to bounce light in many directions. They'll usually appear to be the same color no matter what your viewing angle is. Wood, brick, and paint are rough surfaces. Smooth surfaces ten... |
Genetics are easy to understand when you have a few fixed outcomes like eye color. How do they work when it is something like height? | Don't over simplify eye color either, saying the colors one eyes can be are hazel, green, blue and brown would be like saying the height one can be is short, average and tall. Eye color and height both are determined by a good number of genes that we have already identified, but also likely very many others that we hav... |
How is the average life of long-life products calculated? Some LED bulbs have a 24.8 year life. That seems unusually specific for a product that hasn't existed that long. | The Philips bulb that won the Department of Energy LED efficiency prize back in 2011 have been run continuously for over 40,000 hours with an average of just 5% luminous loss. Of the 31 bulbs being tested, not one has failed. _URL_3_ I have a number of these bulbs and they are still the best bulbs I've found by a wide ... |
What is the difference between the cyclical climate change seen during the Ice Age and the climate change we see today? | Not positive about back then. Today we burn a ton of carbon based fuels like gasoline, natural gas, diesel and every other fuel which, when burned, release CO2 gas into the atmosphere. The CO2 doesn't block the visible light coming from the sun so the Earth warms up like normal, but at night when the Earth tries to coo... |
Why does it snow at sea level in America, but not at sea level in Australia? | Whether it snows or not doesn't depend where you are. It depends on the temperature. In NYC the temperature is below 32 degrees F sometimes. So it snows. In Australia, it may be below 32 degrees F but there is no precipitation above you or you area never reaches 32 degrees F. As you getting higher and higher into the a... |
Why does the tissue on the inside of your cheek heal/regenerate so quickly? | There's one reason that I didn't see mentioned here. It HAS to. It's got a lot of things going for it that help it heal quickly, but when you get right down to it, cuts, abrasions, and burns in your mouth have to heal quickly or else they'd become really nasty festering wounds. Mouths are really nasty biological cesspo... |
what exactly is "pi"? | Pi is the ratio of the circumference of a circle to its diameter. It's a mathematical constant you'll be using a lot if you're doing geometry with round things or angles. Angles are everywhere. |
Why are aircraft carriers uncommon in most militaries | They are expensive. The Nimitz class carrier costs about $4,500,000,000 a piece. Most nations don't spend close to the US defense budget. Hell most countries GDPs are smaller than just our defense budget. The US is also a bit unique in that we are sort of alone on our continent, most of the nations we would need a pres... |
Why is it so easy to confuse left and right, but seems impossible to confuse up and down. | Up = Sky. Down = Ground. And that never really changes—at least not unless you're doing helicopter tricks. However, taking three lefts is the same thing as taking a right—it's always way more contextual to where you currently are in space. Suppose we walked down hallways in one direction our entire lives and the black ... |
Why is music/lyrics so much easier to memorize than other things? | I am a professional jazz musician and I, for the life of me, cannot remember ANY lyrics. Sometimes I can sing along to things I have heard a million times. But I can't even recite lyrics to Nirvana songs, which were my first musical obsession. My connection with music is melody, harmony, and rhythm. But I also realize ... |
Besides the initial excitement about a new planet, what is the appeal of Proxima B if it would take so absurdly long to get there to study it? | It's the least absurdly far away place possible, just about. Every other place is more absurdly far away. If the alternative is to get somewhere in 50 years or 10,000 years, 50 years is obviously better. |
Why is the dirt taken out of the hole rarely enough to fill it back? | Maybe some of it flies away with the wind since its now loose and manueverable. In addition some dirt will just resettle on top of the ground nearby and you don't notice since it evenly displaces itself. No science behind what I'm saying just taking a guess. Source: I sometimes dig holes in my yard when I need to. |
With 48 hours of video uploaded per minute, how does YouTube survive? | I would guess massive amounts of storage, probably homebrewed solutions for it like the google servers to keep it cheap, likely running on their own file system, and LOTS of deduplication. I can't imagine running a service like YouTube without dedup._URL_1_ Here is a link that talks about how YouTube is able to scale. ... |
How does only part of the moon show up when its not full? | The other answers are good, so I won't repeat them, but I will point out something kind of cool. When the Earth is directly between the moon and the sun, then if you think about it that means that the part of the moon facing the Earth is also facing the sun. So whenever we're directly between the sun and the moon, then... |
Why Does Your Breath Smell Bad When You Don't Eat For A Long Time? | As well as the reasons that /u/ChuffChuffs and /u/kodack10 mentioned, the stages before eating food, thinking about it, smelling it, seeing it, cooking it etc all trigger your parasympathetic nervous system to produce and secrete more saliva into your mouth. This is further increased while actually eating. This means t... |
How do reddit moderators pick and choose which ELI5 post to remove? Theoretically google could be used for every question on the whole subreddit. | We remove as many of the posts as we can that don't follow the rules for the sub. We're a small mod team so do what we can, a lot get missed.Some posts have been done literally dozens of times. Like "why does chewing mint gum make my mouth cold?" and "why do people like music?" |
I recently learned that the Mars atmosphere is 95% CO2. Since CO2 is a greenhouse gas, was isn't the planet much warmer? | Because 95% of barely anything won't make much difference. Mars' atmosphere is extremely thin. It has 0.6% of the surface air pressure of earth. It is about 100 times thinner than earth's atmosphere. The warming as a result of a greenhouse gas only works if the gas interacts with the bouncing light to keep the energy o... |
how certain are our scientists that we won't accidentally bring something back from Mars / asteroid / etc that would potentially be hazardous to our planet? | Well, anything that evolved to live somewhere else isn't going to be suitable in the slightest for the living conditions here. If we implanted Ebola on Mercury, Europa, or literally anywhere else it wouldn't be able to do shit. |
How are stores able to make a profit on Black Friday if they mark everything down so much? | A lot of products are marked up a great deal. It's not unusual for stores to price items 100% higher than what hey get it for , many electronic manufactures make products specially for Black Friday and Chistmas time, using much cheaper parts, you can tell because the model numbers are different than the regular version... |
What are the negatives of putting nuclear waste on a rocket and launching into the sun? | It's a great idea if rockets were perfect. But one single rocket having a mishap would be a disaster. We would have to launch hundreds of rockets to get rid of all our waste on the planet. There's a high chance of some of them having problems. An explosion of a rocket in mid-air would spread radioactive material a long... |
When does a "startup company" actually stop being referred to as one? | A startup is often defined as a company searching for a scalable, repeatable business plan. So I'd say that when a startup stops experimenting on product / go to market etc. and starts executing the plan, it is no longer a startup. |
Why are pay bonuses taxed heavier than your regular wage? | Income is generally taxed more as you earn more. For example, the first $15,000 might have no tax, $15-40,000 might be at 10%, and above $40,000 might be at 20%. These are called tax brackets. Generally at the start of the year, your employer figures out your average tax and keeps that to give to the government directl... |
What it SRS, all the drama surrounding it, and why pretty much all of reddit hates it? | I frequent SRS so take this with a grain of salt. It could be a little biased. SRS mainly exists to find and point out posts that are deemed offensive or ignorant. Once posted, they are typically made fun of, etc. I can think of a few reasons why reddit doesn't like SRS: 1. It's a circle jerk. It evenly explicitly says... |
How is porn still profitable? | Do sex products count as part of the porn industry? Like didlo's named after porn stores or blow up dolls? |
Why do people care so much about kitchen cabinets, why do they cost so much, and what makes them out of date? | When you buy a new house, you want the parts inside to be good condition. Its not required or anything, but if you put $10k into your house before selling it, it can bring $20k more into the sales price . |
Why do people wear helmets in autocross? | I ride motorbikes and would argue the same reasons for 4 wheeled motorsports as I would for 2 wheeled. A good, properly fitting and quality helmet will protect your head massively more than nothing at all. The seatbelts are very good at what they do but they don't hold your head still and you can still have your head m... |
China has giant empty cities like Ordos that have been waiting for years for people to move in to. Why don't Syrian refugees go to the massive already built empty cities in China? | The Chinese government doesn't want foreigners living in China, especial those who believe in a higher authority. Muslims really top that list there on both counts. |
What are "eye boogers" and how are they formed? | Also why do I no longer get them as an adult? I can't remember the last time I had them but as a child I had them practically every morning.I just call them sleep. like not anything else like sleep gloop or fukin sleep boogers. We just staright up call that gooey eye shit sleep.They're actually not naturally occurring,... |
What do protein supplement powders actually do for your body after working out (e.g. Whey Protein powders)? What benefits does it provide? | Use _URL_5_ . They are really the one-stop-shop for *all* of your supplement questions. Totally science based. You can search per supplement, or per health goal. For example 'Fat lossPower output' etc. Search Google for their book PDF too. |
How is tungsten melted down if the torch that produces the heat and the crucible it sits in all melt at lower temperatures than the tungsten? | Others have answered about the crucible. As for the torch, you can have a flame hotter than the material of the torch, as the gas is constantly flowing out, so the actual flame is a bit away from the nozzle, and the heat is constantly blown away from the nozzle. For example, it's completely possible to use one acytelen... |
Lossless audio files. What's the point of having a 1000 kbps FLAC file that's 40 mb vs. a 320 kbps MP3 that's less than 10 mb? | In photography terms it's sort of like the difference between a JPG and a RAW file. Not sure if this helps, just how I see it.FLAC is lossless. All of the information that the computer could capture and reproduce is stored in the FLAC file. MP3 is lossy. The MP3 format discards a lot of sound that is supposed to be mos... |
Can your body become addicted/dependent on a substance even if you have no idea what it is? | In the real world, it happens all the time. Many people are simply unaware of the dependence risks associated with relatively common medications: benzodiazapines, z-drugs , opioid pain medications, etc. The problem with your example is that one night of drinking/meth/cocaine isn't going to make you addicted. Dependence... |
Why does it cost over $2 million to make a single Family Guy or The Simpsons episode? | This is going to be buried but, here's my perspective: I run my own animation business and have collaborated on a Major Lazer episode for FXX. In short: it's a lot of fucking work. And, when it's not a lot of work, it's not making up your mind. A lot of these shows are writer first which means the board artists often h... |
Do police really have speeding ticket quotas and if so how do they work? | No. Working 8 years in a big city department I've never been told to write tickets, get a certain number or anything of the sort. We enforce traffic violations as we see them, and most of the time we're busy with 911 service calls. Sometimes if we have complaints from citizens about more specific issues than we'll focu... |
What does a 30% chance of rain actually mean? | It means that if you looked at 100 days with similar conditions, it would have rained on 30 of them. Plus or minus the forecaster's judgment. |
Why did they remove baseball from the 2016 summer Olympics? | They were actually removed for 2012. The IOC has a limit on the number of sports that are permitted to be in a single Olympics. Occasionally, sports are removed and others are added. Removing the two sports of softball and baseball opened up two spots that were unfilled in 2012. However, this has enabled golf and rugby... |
Why is it acceptable for celebrities to receive millions of dollars in salary while a CEO of a billion dollar company is often criticized for that? | Because people aren't rational - so many people won't even make that connection. Of course, it doesn't help that most people only notice the CEO when his company is doing something they don't like. The average person probably couldn't identity the CEOs of the vast majority of the big banks, or any other industry unless... |
How come cars don't automatically detect and tell what is wrong with them? Given all the technology we have today? | What bothers me is that you still have to go to some trouble to read the code yourself. Sure, you can get USB thingies or other tools from the internet. But many cars these days already have digital readouts for things like trip computers, mileage calculators, etc. Can't the code just be shown there? Most new car stere... |
How are photos colourised? | I'm a graphic designer, and did a lot of colorization back in the day when I was practicing Blending Modes. B/W pictures have two colors as the name tells, Black and White, but between them, there is an intensity level as a transition from Black to White. What the artist usually does is that he guesses pretty much all ... |
the different road types: street, avenue, road, drive, parkway, highway, etc... | I don't know if it works everywhere, but in Poland avenue is when lanes in different directions are separated by something: a grass lane or a tram track or something like that. Otherwise, it's a road/street. |
If a jury is supposed to not know the details of a trial ahead of time, how do they find jurors for high profile trials like the Boston bombing? | They find people like me. I just served as jury foreman for a local murder trial a few weeks ago where the victim was a well known and well liked member of the community. I am fairly new to the area and did not know him, and since I very much keep to myself, did not have any prior knowledge of the crime in question. I ... |
What stops democrats from registering as republicans en masse for the primary and voting for the weakest candidate, so as to give Obama an easy ride in November? | A few things. 1. Like others have mentioned, depending on which state you live in you may or may *not* be allowed to vote in a party's primary unless you've been a registered party member for some time. While it's easy to register to become a party member, even the slightest hurdle makes people less inclined to vote. 2... |
Why is the g string on a guitar the one that tends to go out tune the most. | Have your guitars professionally set up, and you won't have strings going out of tune. Tighten the keys, put a little bit of Vaseline with graphite shavings from a pencil, mix up and put in the nut. That will stop slipping. So as long as your keys are tight, you should stay in tune. There's a lot of things you can do t... |
Why do presidents elect Supreme Court justices? Doesn't this defy the whole balance of the three branches of government? | The president nominates the Supreme Court justices. The senate must confirm the nominee. Once a justice is actually on the court, they cannot be removed unless impeached by congress, or if they resign, or if they die. So there are a lot of checks and balances and that is why President Obama's nominee is not going to be... |
Why do we have to file taxes and pay the IRS money? Don't they already take money out of your paycheck for that very reason? | And why should we do our taxes every year, if they already know what they took and can tell you when you did your taxes wrong? The IRS fixed my mom's form and told her about it. What's the point of us doing it if they're going to do it anway? Sorry, asking on your question, but it's tax season and on my mind :) |
Why have we not paved the deserts with solar panels yet? | There are two main reasons: 1. Solar panels aren't efficient enough for it to be cost-effective. 2. Deserts have ecosystems too. People don't usually think about all the things that live in the desert, but deserts aren't completely barren of life. |
Why does California allow public/private water fountains and water-parks during a Drought State of Emergency? | You're really going to hate the town's, farms, and companies paying zero for their water. |
Why are pencils shaped in a hexagon? | Why aren't chapsticks square/triangle/hexagon? Because that design would plummet sales by 80%.Hex or octa have the best shape as far as not wasting space. Bees use this shape with their honeycombDoes this belong here? isn't this more of an "explain because i'm to lazy to google this simple bit of trivia" thing? |
Why is space debris during interstellar travel at 35,000 miles/second + not an issue? | It's partially the fact that space is empty. The other is that any given spaceship needs some form of shielding to travel at those speeds. These are split into two general categories, powered and unpowered. Skylab, for example, had [micrometeoroid shielding]. Powered is more theoretical right now but could take the for... |
Why would companies like Dominos prefer to sell me 3 entire one-topping pizzas for cheaper than one pizza with multiple toppings? | Usually I'd say it is because they have an abundance of common toppings and can sell cheaper. Using all toppings or less common ones cost. |
What should I expect from my root canal? | I've had two root canals done and /u/nuclear1975 has described the process well, though I didn't have any 'singeing' of the root. As for the experience - for me it was fine. They inject analgesic into the gums and the roof of your mouth. That's not pleasant - it's never nice being stabbed with a needle - but once it ta... |
Why do television camera crews use very large cameras to film, but my go pro cam shoots HD and is smaller than my fist? | Note that sports cameras have deep optical zoom, meaning they're taking light from an enormous opening and routing a focused subset of it onto a sensor. GoPro has a high resolution sensor but the pro cameras are just grabbing and managing way more actual photons, before the sensor has even shown up. |
how does GPS work by just asking a satellite what its time is? | GNSS don't use triangulation there is no angle to measure. GPS use trilateration. Your GPS already have a good idea what time it is with is own clock so when it receive the time from a satellite it can create a sphere around the GPS satellite of possible location based on the speed of light. With a second satellite you... |
Why is the roman or ottoman empire not called the italian or turkish empire? | Italy's borders as we know them also didnt even exist at the time, and neither did Italy as a country. |
What happened with the game Spore? | To put it simply, there were 5 different teams working on five seperate games with minimal communication between them. Near the end of the production cycle, the games were slapped together and it was mostly an incoherent mess. It's a prime example of a vision losing focus.There was a lot of discussion in this thread wh... |
How does Kim Jong-un keep his people from knowing what's going on in the real world? | When my husband came to China in the late '80s the Chinese he met were genuinely surprised to hear that the United States was not, after all, a land of poverty and deprivation as they had grown up believing. They were taught that however bad things might be in China, they had it much better than those poor Americans an... |
Why do you fall asleep much easier on the couch watching TV (or anywhere other than your normal sleeping place) than in your normally used bed? | When you fall asleep watching TV it's because at that moment you are tired enough to fall asleep, so you do easily. If later you try to force yourself to fall asleep even though you aren't as tired then, you will naturally have a harder time faling asleep. There are probably plenty of times when you are watching TV and... |
Why colonize the moon or Mars instead of inhospitable Earth locations? | We'll have to, eventually. The sun will literally engulf the Earth in ~4 billion years. But during that process, in about 1 billion years, the Sun will become so radiant that it will literally evaporate all of Earths oceans. As a species, our time on Earth is limited. Granted, that's in 1 billion years, which is a loon... |
Why do ISPs want to throttle Netflix? | Since Netflix can take up a lot of data when streaming, isps want Netflix to pay them a fee for providing the same the speed that they offer to other sites who don't use as much data. And yes, some of these providers also have their own streaming source in mind, and if Netflix is too slow, people will switch. Also, If ... |
How were we able to get to the Moon within 9 years of going to space, but in the 42 years since we can't send someone to Mars? | No focus. Little to no public support. No funding. Next time you're talking with people ask them if they believe space exploration is important. They will likely say, fuck no. . |
Why did so much technological innovation happen in the old world rather than the new world? Was there anything stoping the Native Americans from inventing new things? | The best book I've ever seen on this is Guns, Germs and Steel by Jared Diamond. In short: Europe and Asia had the fortune of many domesticable species of animals and plants unavailable in the new world and much of Africa and Australia. This led to all sorts of advantages, including disease resistance as a result of ani... |
Why does it take Amazon several days to "prepare" items for shipment? | It doesn't take days for Prime members, or people who pay for faster shipping. If you take the cheap/free shipping, you're standing in line behind all the people who paid to get it quicker. |
Why is my 2004 Desktop Faster then my 2013 laptop? | Faster in what of many senses? From the specs you posted the laptop would be faster when running at full power and once everything is loaded into RAM . But if you're doing anything over a network, that could contribute, the desktop machine is almost certainly running a faster hard drive . Your laptop though, it's worri... |
Why its bad to eat too much microwaved food. | It's bad to eat processed food in general. The microwave has nothing to do with it. I'm assuming you are thinking about radiation or something along those lines. All a microwave does is shake the molecules to heat the item. |
Why are the psychological symptoms of autistics so heavily reinforced through accomodation when many other psychological disorders are dealt with by trying to normalise the sufferer, such as vehimently contradicting schizophrenic delusions? | I wouldn't say that treatment for people living with schizophrenia involves 'vehimently contradicting the schizophrenic delusions.' CBT for psychosis is gaining traction and I do believe in the model, but it's not contradicting per se. It's more about facilitating the development of critical thinking skills and helping... |
Why does the military use phrases such as Oscar Mike, or other lingo like Tangos? | Because when you need to know the exact letters in a word, or string of characters, individual letter pronunciations are extremely easy to confusing. M and N for example are extremely hard to tell apart and when you are trying to be extremely precise and efficient it's not helpful to have to repeat yourself multiple ti... |
Please explain "negative entropy" (negentropy) | While this isn't negative entropy, it's a different way of looking at the universe that may help. What we think of as entropy isn't necessarily going from order to chaos, but from less complex to more complex, from holding less information to holding more information. Minutes after the big bang the universe is largely ... |
When applying for a job, why do companies make you manually write in all your work experience instead of just looking at your resume? | As a hiring manager, I've got to say the biggest reason I see is that people lie, a lot. You'd be surprised the amount of resumes that don't match applications. |
How does Alzheimer's kill? | Simplifying a lot: Alzheimer's has two ways that it works. The first way: if you assume that your neuron pathways are layed out like a sheet of paper, Alzheimer's crumples that paper into a ball, which prevents the neurons from working right. The second way: there's a buildup of some stuff in your brain that forms plaq... |
How do interpreters hear the next line while interpreting what was just said? | There was just a post about this on /r/languagelearning! The answer is practice, practice, practice. Simultaneous interpreters train rigorously over a number of years. They start by listening to something and repeating it word for word. Then they close the gap between repetitions until that they're speaking and listeni... |
Why have humans evolved so quickly compared to other species? | If there is not pressure to change then it won't happen. Also potential genetic variation. But why do you say humans have changed more? |
Why does China seem to be relatively under control compared to most of the world? | > They're not dictatorships. They are though. It's incredibly totalitarian over there. Most social media is blocked so communication is limited, and people vanish if they criticize the government. The whole 'China is under control' thing is literally that. They are under control in a very effective way. China gets thin... |
How can the same flaps create lift for takeoff and destroy lift for landing? | The flaps dont destroy lift. They increase the surface area of the wing which provides more lift for the same speed.It allows the aircraft to fly at slower speeds which wouldn't be possible without the flaps. |
what Wolfram Alpha is suppose to do? | Generally anything involving hard data, maths, or statistics. For example: If you use it to look up a country, you get population figures, numbers of vehicles, area, GDP, km of roads. That sort of stuff. If you use a normal search engine, you get pages that have information about the country, but it is likely to be les... |
If the universe is full of stars giving off tremendous amounts of heat, why is space so cold? Wouldn't it warm up eventually? | The actual 'space' part of space, doesn't have a temperature. Temperature is the measure of energy in stuff, and space is 'the lack of stuff.' Beyond that, space is very very empty, there's a lot more emptiness than there is 'stars'. Where there are stars, the 'stuff' in space is most definitely warmed up. For instance... |
Can pack animals, domesticated or wild, perceive a human to be the "alpha male" or is it only limited to their species? | Not all pack animals can perceive humans as alphas. We have domesticated wolves, so clearly they show some leniency when it comes to this, otherwise it probably wouldn't have been possible. Since we have studied wolves intensively, we know that this is possible. But there are a lot of animals who could not or would not... |
When I tell a website to "save username and password" where is it stored? Is it safe to do so? | The most common way is as a cookie stored on your browser which contains information such as your username and password and which site this cookie is associated with. When you open up Reddit for the first time and expect it to remember your login Reddit will send a request to your browser and ask if there is a cookie s... |
Why don't smartphones have FM-AM radio/ over-the-air television tuners? | Just joining the torrent, but money. I have the same model of Note 2 that's for AT & T in the states, but the Big 3 here all have internet radio services so it's disabled. I wonder if it's actually in there. It'd be cool if just changing roms would fix it but it's probably not in there at all. My old HTC Desire C had a... |
Why aren't physicists concerned about catastrophic explosions created by particle accelerators? Whenever I read about a more powerful accelerator smashing particles at higher energies than ever before, I get nervous. | I feel like the other comments are kinda missing the point- sure, when measured against large-scale things the energies are tiny, but it is certainly conceivable that having that large of an energy *density* would be able to cause something catastrophic, since all of that energy is concentrated into a tiny amount of sp... |
Why do even numbers feel safer and more pleasing than odd numbers? | On the T.V. volume. I go crazy when it's on an odd number. To this day, I still don't know why. But only T.V. volume. |
Since the moon and mars are both uninhabitable without great technological burden, why would we send people to live on Mars when the moon is SO MUCH closer? | We've been to the moon already. And the current missions that people are talking about doing are more just to work out how to get people there and back again safely, much like the Apollo Missions did for getting people to the Moon. & nbsp; When we do get around to the point where we're sending people up to live and wor... |
What would be the evolutionary advantage for dinosaurs to develop wings without being able to fly? | Longer jumps, briefly get carried by a wind. Larger body, more threatening to predators. Ability to jump out of tree's clifs and survive the fall, etc |
How does the Euro work? | Each country issues its own coins and notes, but they're interchangeable. That means that you can spend an Irish Euro in Spain with no problems. I don't know whether there are mechanisms for repatriating currency to its country of origin, or whether it's just allowed to get all stirred up. Last time I bought Euros they... |
Why does your body feel physically ill after experiencing emotional trauma? | Because it is. We like to pretend like the mind and the body are separate things, but they're not separate at all. When you experience emotional distress, your body reacts physically to that distress. It releases hormones and endorphins that trigger things like your fight or flight response. And afterwards, it needs ti... |
Why does every human look and act different from each other, while almost every other species of animals look and act the same? | Other species *do* act and look differently, you just aren't trained to see the subtle differences. You *are* trained to see differences in other humans from the time you're born. |
how does magneto fly? | If he creates a strong enough magnetic field, he can just repel off the Earth's metal interior. What's more amazing is how he can control magnetic fields to manipulate a single object. Try attracting a single paperclip out of a bunch with a magnet. |
How did we figure out that fingerprints are 100% unique? | It's not 100%. It's like if I toss some marbles on the floor. Chances are overwhelming that they will land in a unique arrangement each time. You could in theory get an identical result, but it's extremely unlikely. |
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