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How do games like GTA V squeeze so much more power from a console than launch titles? | Because launch titles work with new software, running on new hardware which, itself, runs with new firmware. It's all very new and nobody knows the ins and outs of the system yet. After years of thousands of people working with the system clever tricks are discovered, useful algorithms are developed, code is written mu... |
why and how are URLs sanitized, and what bad things can be done if they are not? | Basically there are tricks out there that can be used to hide nasty bits of code in a url. You sanitize it by not just using the url as is but by going over it to make sure it doesn't contain those nasty things only something valid. If you don't sanitize it then it can be used to launch an attack on your site by more n... |
What, if anything, did Occupy Wall St. Change? | The #1 thing that Occupy did was to bring a ton of awareness to the USA's ever growing wealth disparity. The resulting debate over what to do about America's wealth disparity will affect how some people will vote, or even just inspire them to get out and vote. I don't think that it is 100% over, but the only people tha... |
How does your genetic code know what looks great and what to give you in terms of how you look, if its never seen any human in its entire life. | Your genetic code doesn't know what looks great. It knows how to tell your body to grow, using chemical processes. We humans think certain things look great and others don't. But your genes have no opinion. |
How this ruling protects civil rights. | Part of the issue I believe in Wisconsin is that in requiring you to get a voter ID, they also require you to pay for an ID. That could be perceived to be a sort of poll tax, requiring people to pay money before they can vote, which is illegal. Additionally there's also the added pain of having to go out and get an ID,... |
What's the appeal of blonde hair? | Not really like you're five but: > The genetic mutation that's linked to blond hair only popped up about 11,000 years ago, spreading from modern-day Lithuania out across Scandinavia and the rest of northern Europe rapidly. > There are a couple of competing theories about why this happened. Some scientists believe that ... |
How do we know how many calories there are in each food item? | calories come from macronutrients. We know how many Calories are in each gram of macronutrients, fat has 9, carbs have 4, etc. So we dunk the food in something that dissolves fat, and then measure the difference in weight. It lost 10g so it had 10g of fat, that's 90kcal from fat. Then we do the same for protein and car... |
Why are lightning rods not used on buildings as much as they were during the 18th and 19th centuries? | Architect here. Most modern buildings incorporate lightning protection into the coping which runs around the edge of the roof. This is usually a metal strip fixed to the metal coping with clips and then run down to a ground rod which dissipates the lightning charge into the ground. In my experience, lightning 'rods' ar... |
Why is 99% always the longest lasting percent? (download) | Generally because it's at that step that it's verifying the download, checking the data for any errors or corrupted bits and redownloading anything that fails. But part of the effect is also psychological and it doesn't take that much longer, or have much more variability than other stages of progress. You're just more... |
Are Rainbows just a mirage or can I walk under them? | Rainbows are an optical phenomenon created by light and atmospheric conditions, but that doesn't necessarily mean you can't walk under them. For example, I see rainbows often that circle the Sun around Noon. I'm walking under it!", 'They are a product of light refracted at a particular angle from a particular light sou... |
How come the Zimbabwe dollar inflated so fast? How do people survive in a country with such hyperinflation? | The president Mugabe is an EVIL dictator and he's printing money like crazy to fund corrupt politics in Zimbabwe. It's not like people are having an easy time. Many are moving out of the country and but it's becoming more and more difficult as they become more poor. |
Why do some computers need incredibly complex cooling systems? Why aren't fans sufficient? | Speed = heat. The CPU gives off a tremendous amount of heat, as does the GPU. These components can also be overclocked [increased voltages] producing even more heat. Overclocked hardware is where you'll usually see the custom cooling solutions. Fans [or even passive heat sinks] are sufficient for normal hardware, but w... |
How parallel universes are possible? | According to theory it is because our universe exists others must exists as well. If other exists all parameters in those universes can be changed . Thus everything that can happen, will happen, has happened, and will forever happen. Basically we're going to live these lives over and over again until the end of time. T... |
Why is alcohol supposedly very addictive, yet so few addicts are around (relatively)? Explain addiction to me. | If alcohol had only suddenly been invented in 2015, and found to have a 15% addiction rate, it would be outlawed as a Schedule I drug in a heartbeat. Anyway, there's so many things at work here - genetics, individual personalities - I'm not sure how to easily explain what makes some susceptible to addiction and not oth... |
why cars seem to have limits imposed on how loud they can be and motorcycles don't seem to | The way the law is written, it's hard to enforce. Police are not issued decibel meters , so they generally can't prove anything is over a given limit. The same laws that cover power tools/machinery/lawn mowers/stereos covers motorcycles and cars as well. They're by no means exempt just because the noise is made by a mo... |
How is 2 not infinitely bigger than 1, if 1 is infinitely bigger than 0? | a/b isn't defined for b = 0 so you can't say one is infinitely bigger than 0. You can do 2/1 = 2 means two is twice the size of one though. |
What does it mean when economists speak of "stagnant wages relative to inflation"? | Say inflation is 2% a year and you made $100 this year. Then you make $102 next year, a 2% raise. Well because of inflation despite your raise, your income isn't any higher. If it was under 2% you would have more money, but less wealth. In addition say your company grew in value by 5%, you wouldn't be seeing any of tha... |
How are people like Warren Buffet and Bill Gates so rich? It's like they have infinite money, and they've both been retired for several years now. | Bill Gates used to not be rich. He worked at IBM developing their DOS . He then got with his friend Paul and formed Microsoft in 1975 where he created MS DOS . There were other versions of DOS out there like DOS.X, but Microsoft was the only one I'd ever used, and it seemed like it had a lot more features . After Windo... |
Why do some people's personalities just rub us the wrong way? | There is a relatively new guy at my work place that used to drive me nuts. He's never rude or mean. In fact, it's the very opposite. He apologizes for everything he says and does it to the point where I've realized he has zero self confidence. He also clearly sees me as a dominant personality. I am naturally drawn to o... |
What are the practical applications of philosophy? | Everyone does philosophy - everyone has views on right and wrong , politics, religion, art, etc. Pretty much every argument has to do with logic. By studying philosophy you can actually save a lot of time by realizing that some of the arguments are useless or meaningless. So, let's create an imaginary person called Ted... |
What are the tiny black box-y outlines that look like pixels on every screen? | I'm old enough to have started an answer on what they are on [CRT TVs.] Linked in case you kids are young enough to have never seen one |
How can google claim to give an answer to the factorial of a fraction? | In math, there's a function known as the [gamma function] which is essentially an extension of factorials to all complex numbers . The gamma function is defined so that G=! if x is a positive integer; there are infinite such functions, but the gamma function is the most useful. What Google is doing is giving you G. |
Why is it dangerous to run an empty microwave? | MrMeltJr's answer is on point, but another consideration is that if the microwave oven runs empty, then the waves may bounce around until they reach metal pieces. When the generated microwaves reach metal pieces, they can do funky things like turn the air into plasma. Such plasma is at a very high temperature and can u... |
How did christianity win over norse religion? | A popular story in Denmark is that of the German monk Poppo who in 966 converted King Harald Bluetooth to Christianity by wearing a red hot iron glove, without being burnt mind you, as prof of the validity of his faith. Upon witnessing this King Harald denounced paganism and declared the Danes as Christians. Truth is t... |
If the Earth orbits the habitable zone, how come the moon doesn't look like the earth does? | Being in a habitable zone is only part of what is required for a lush and vibrant environment. The moon doesn't have the other characteristics that earth does, such as a relatively thick atmosphere, and organic matter such as trees. |
Why doesn't there seem to be some kind of international law to stop someone keeping your passport from you? (e.g. as is happeneing in Qatar) | First time I traveled to Mexico, the check-in at the resort demanded my passport and kept it until I checked out.Gotta say, I wasn't really comfortable with it but everyone else seemed OK, so I went along with it. I guess this is normal?..? |
Why do businesses such as grocery stores leave their indoor lights on 24/7? | Some places do it because it helps with security footage in the case of a robbery , other places have cleaning crews and repairs come in at night so they don't bother customers.To deter criminals, easier to see people walking around inside when the lights are on |
Why cant all sites be https? | They actually can . The limitation is poor knowledge or no incentive from the people in charge of the website. All technical issues you can think of as issues are myths and decrypted [here]. There is also the [HTTP/2 speed test] that only works over HTTPS. > TLS has exactly one performance problem: it is not used widel... |
What is total football? All I know is It's some style of playing football(soccer) | It's a playing style, famously developped by Ajax and the Dutch national team in the 70's, where players are constantly switching positions: defenders become attackers, attackers become defenders. [this video] explains it well. |
the difference between Sunni and Shiite muslims and why one seems to be more radicalized | During the lifetime of Mohammed, he created islam along with a caliphate spanning as far as spain to persia. The ruler of this caliphate is called a caliph, Mohammed of course was the first Caliph. When Mohammed died the caliphate needed a new caliph. This was decided along Mohammed's closest. The difference between Sh... |
Why do people get brain damage from inhaling certain gases when it goes to their lungs? | The gasses go into the blood and get circulated around the body, including the brain. There's something called the blood-brain barrier, it's likely these substances are able to cross it. The brain is delicate and we can't really fix it like we can other organs. Any damage is notifiable and hard to treat making it more ... |
How the personality cult around Kim Jong Il works | North Korea also explains to its citizens that North Korea is a paradise and everything outside its borders is Hell and only their 'Dear Leader' can keep them on the right side of that very fine line. |
why is it once I realize I'm in a dream, I immediately wake up? | I think you've just got cause and effect backwards. You're starting to wake up, and thus you realize you're in a dream. |
Why do celebs do local commercial spots? especially when they are apparently super rich. (ie: Shaq doing The General insurance commercials.) | He's got a net worth of about $350 million. Certainly enough to live comfortably on for the rest of his life. However, he's also donated millions to charity, and most likely intends to continue doing so. There's not really a definitive answer as to why he still does commercials. Perhaps he enjoys it, and has decided to... |
How come when dead asleep in the passenger seat of a car I wake up once the car reaches the driveway of home | I do the same, once the car slows to the exit I wake up. The constant and repeatative sound of the road acts almost hypnotically on me. I also sleep with a fan at night and I'm the first to know if the power goes out because the stop of the hum immediately wakes me up. |
This AskReddit post about Mitt Romney's possible voter fraud | When counting votes in a precinct, the amount of votes the candidates receive are comparable to having marbles in a bag. There is one color for each candidate. When the vote count begins, the pattern/predictability of pulling a specific marble is really unpredictable. After counting a majority of the votes, the number ... |
What is a "cake day"? | A Cake day is the day that you've been a subscribed Redditor for exactly one year. It's like a birthday, only with more Karma. |
what is the difference between Generation X, Generation Y, and Millenials? | The second and third items on your list are synonymous. Gen Xer's are the offspring of the baby boomers and gen y/millennial are the offspring of the Xer's. |
Why are movies not available in 4K, even though they are filmed in 4K and played in 4K in the theater? | I'm assuming because 4K cannot be achieved through standard players and TVs. By standard I mean 4K is not available in the common household. It's not a really good policy just for the few that can. Wait a few years and this may change. |
Why do stars seem to have a constant position even though everything is moving through space? | The farther away things are, the more difficult it is to notice them moving. The distance to the stars is so mind-bogglingly huge that their positions don't seem to change much. |
The names of Pharaohs if we don’t know how to speak ancient egyptian | Because someone found the translation dictionary - [The Rosetta Stone] The Rosetta stone had the exact same information written in 3 languages . Greek, Demotic phonetic characters, and Hieroglyphics. If you have the same message in three languages you will have a way to match up what the language you don't understand m... |
How do scientists know for sure that an animal is extinct? | They don’t. Usually if they can't get a confirmed sighting for a long period of time the animal is declared extinct but we have had animals long declared extinct resurface and be declared no longer thought extinct. |
Why are movies typically cropped, leaving black horizontal stripes above and below the picture? | I think that happens because the theater screen is wider than most tv/computer screens, hence having horizontal stripes above and below in order to fit the whole film on every screen, but I might just be wrong as well EDIT: I don't think anybody mentioned so: for TV broadcasting, films are usually rendered under certai... |
Why do some of us lose all appetite when we feel guilty/sad and others gorge themselves? | I fucking adore food. When I'm sad I feel like I don't deserve to be happy. I mean this to an extreme degree. I can't eat. I just don't want to. At all. Everything repulses me. I haven't eaten in two days. |
Why does every radio station seem like they go on commercial break at the same time? | most radio stations are broadcast subsidiaries of the same company, clear channel. they have no reason to stagger their commercial breaks. competing radio stations will stagger their breaks differently to compete, so when you start dial surfing you'll find a station not on commercial break, but it's likely that all of ... |
Why are so many Shakespeare plays set in Italy? | Italy was simply a very fashionable place then, and people were enchanted by Italian history and art, so they'd be much more likely to enjoy a play set there. |
Why does gatorade hydrate you better than water? | Electrolytes, water doesn't have any and in large amounts can actually flush them from your system. Without electrolytes and sodium you get to die a very unpleasant death. Be better to mix water and Gatorade, or even pickle juice, as it's packed with electrolytes and tastes better. |
Why isn't there a Kurdistan? | There's a large Kurdish population in Turkey as well and a sovereign Kurdish state right across the border is highly likely to fund and support Kurdish separatists in Turkey. The US has to be moderate in its support for the Kurds because they have been known to commit acts of terrorism in Turkey. The US values Turkey a... |
What is it about mass which causes gravity? | The way I saw it once was, think of a 3 dimensional trampoline. If you put a bowling ball on a trampoline, marbles are going to roll towards it. If you throw them at an angle, they're going to circle around until they eventually hit the bowling ball. We are constantly living in a 3D trampoline. The heavier the object, ... |
Why do famous people resign their positions after a scandal? | To not have whatever legacy they've established become super tarnished. They basically run away from the fight. |
What is Germany doing differently then America where America is trillions of dollars in debt while Germany has a several billion dollar surplus? | I might have gotten this wrong but I think Germany's national debt is 2 trillion dollars going off of [this]: 1,771,735,100,000 euros which is: $2,177,940,806,377 Definitely might have that wrong though. So they're both in trillions of dollars of debt but Germany posted a surplus this/last year. |
When water freezes in a crack, why does it expand the crack instead of just freezing upward, a path of less resistance? | It does, but it also puts pressure on the crack. Depending on how quickly it freezes, and where it starts to freeze first, it may get locked in by it's own frozen surface, or it may ooze out of the crack. Don't forget that the rougher a surface is, including the interior of a crack, the more friction it has and the har... |
Is it possible for everyone to make money off the stock market? | Over the long term, yes. Assets give you ownership of a stream of revenue in the future. Everyone who buys a diversified portfolio of assets can expect that revenue stream; the profits don't come from other investors, but from the customers of the firm he partially owns. Over the short-term, no. If you are considering ... |
What are the pros/cons of GMO's? | _URL_1_ This site will tell you everything you need about GMOs, positive and negative, in a very readable manner. In brief, there are no known detrimental health effects resulting from GMOs, and wide scientific consensus that they are safe. There are legitimate fears that the overuse of pesticides could lead to herbici... |
When you call a phone number and it's disconnected, why does an automated voice start reading out random letters & numbers? | I live in the US and know what you're talking about! And there's usually a really loud beep before them? It makes me feel like I'm in a horror movie |
Why do we eat different types of meals for breakfast, lunch and dinner? | No real reason beyond tradition. The American breakfast is derived from a farmer's lifestyle. First thing you do in the morning on a farm is collect the eggs from the hen house and milk the cows. That explains milk and eggs. I imagine the American lunch has a lot to do with school. When we are younger, we all take bagg... |
What's happening inside the engines of luxury vehicles like BMW, Audi, Lamborghini that makes them different than an average car like a Toyota or Honda? | Typically nothing. BMW Mercedes inline 4s are same designs principles as Honda Toyota inline 4's. BMW v8s are same dbl overhead cam with continously variable valve timing as Toyota v8s. Honda and Toyota don't only make econobox civics and Camrys. Honda makes the NSX and S2000 sportscars as well as the Acura RL luxury. ... |
Why do we use water as a containment field for nuclear fuel rods, yet contaminated water is such a notable and talked about issue when a meltdown occurs? | I'm not an expert but I think the issue is less the water itself and more that when the cooling is insufficient trace radioactive material breaks off of what is being cooled and can then be carried with the water in the event of a flash to steam explosion or if the water itself is flushed out. I think the other issue m... |
the dot com bubble burst | The Internet was originally created by the US Department of Defense and was used by Government agencies and Universities primarily for eMail . In the mid 90's the US Government removed restrictions to commercial traffic, Microsoft released Windows 95, and Tim Berners-Lee and and others perfected the World Wide Web . Th... |
Why/how is lobbying allowed? | Bribery itself is forbidden, lobbying in its allowed form not. Essentially it is supposed to be representatives from different branches talking to politicians about possible law changes or to tell them about flaws in proposed ones. This in itself is not so bad, politicians are seldom knowledgeable about their work or d... |
How do some software updates improve or worsen battery life if the battery is hardware? | Have you ever noticed when you are sleeping and you have a really intense dream you wake up more tired then if you have a peaceful dream or no dream at all? Or perhaps if you are deep in thought about something else it becomes harder to get certain tasks done. Computers have the same problem only it is created by the s... |
Unions. What are they, what do they do, and why are they so maligned by some people? | Unions are organizations of workers that work together to negotiate for workers pay/benefits/treatment/etc. In a lot of jobs a single worker doesn't really have much leverage in a negotiation. If conditions are not to his liking, and he threatens to leave, the company probably doesn't care and just replace him, if they... |
Why HIV/AIDS is/was prevalent amongst gay men and in Africa | The virus originated in Africa, so I suspect that's a large contributing factor to its prevalence there . And the conventional wisdom may have changed since the 90s when I took health class, but I was taught that transmission through anal sex is much more likely than through vaginal or oral sex. |
Why is everything in the universe spinning? | > But what makes/made it start? You start out with some gas, like a cloud of molecules. They aren't perfectly arranged, so gravity makes them move, because they aren't equally tugged on every side. Over time they start to clump up. When they clump up, the movement increases, like a ice skater pulling their arms in. Now... |
With sonar, radar technologies so advanced, why is it that we cannot simply scan bodies of water to get a very clear picture of the size/amount/even type of creatures lurking below? | Hi! I've recently been working on a research vessel with drone-operated low-altitude bathymetric sonar, so let me try to ELY5 as best I can. We needed to be really close with the sonar emitter, about 40 meters or so, in order to get a resolution of 1 pixel per metre. That involved millions of dollars of equipment and a... |
What's the difference between marketing and advertising? | Advertising is a component of marketing. Advertising is creating content via billboard, radio, tv, etc, to communicate information about the product. Marketing is really any practice you take to grow your companies marketshare. So advertising is a form of marketing, but so could be something like giving the product a f... |
Is there any way for Cuba to kick the US out of Guantanamo Bay? | If you have enough firepower, there's always a way. The problem is that Cuba does not have that firepower, obviously. So, they can always throw a fit and shoot at Americans stationed there if they wished, but it's not really a winning proposition for them. |
Why is prostitution illegal in so many states, but the porn industry isn't? | What makes you say porn isn't illegal in many states? It's not definitely illegal, but on the other hand, most porn is made in California precisely because a prosecution was attempted on the basis that porn *was* prostitution, and the California courts found that it wasn't. _URL_0_ |
So what's the difference of Orthodox, Anglican, Catholic, Protestant LI5? | Mormonism and the Jehovah's Witnesses are like reboots of mainstream American Christianity. The founders, Joseph Smith and Charles Taze Russell thought that Christianity had strayed far from what Jesus intended and they tried to start over with their respective movements. Both started in America in the 1800s in the nor... |
Why do companies and government not report the data breaches immideately? | Simple. Most companies are interested in profit. In fact, that's kind of the whole point. If something like a data breach became public, nobody would buy their product and stocks would plummet. So it's in their best interest to try as hard as possible to make sure the public doesn't find out. Morals literally have noth... |
What is actually happening when you feel your muscles twitch without moving the muscle? | It happens to me when I'm hungover. I assumed it had something to do with dehydration but I'd like to know the answer as well. |
Why isn't voting mandatory? | In certain jurisdictions it is, Australia and Cyprus spring to mind. You do have the choice of spoiling your ballot if you don't wish to cast a vote but you HAVE to turn up. |
how can a kite surfer use a strong east wind and current to head west? | They can't go straight west in an easterly wind. But they can do what is called tracking, which is basically zigzagging between northwest and southwest giving them an average direction of west. The [Kitesurfing Handbook] explains the specifics of how to do it. |
How is it legal for companies to have a "no competition" clause, when that basically creates a monopoly? | I may be unaware, but the only type of non-compete clause I've ever heard of involves an employee-employer relationship. An employee who has signed this clause and then leaves a company is forbidden from gaining employment with a competitor for a certain amount of time, because of the possibility of the employee reveal... |
How are bands able to produce music that plays in one ear bud but not the other? | Just to clarify what stereo sound means it means that there are two independent audio channels. The left and right speaker are fed two completely different audio recordings/waveforms which are both contained in the same audio/video file or stream. In many cases, the original audio source is stereo . The other possibili... |
How can so many sights like Etsy sell merchandise based off of pop culture icons? Isn't that copyright infringement? | Probably. Chances are what you've seen is so small they haven't been noticed but you often hear of cease and desist letters being sent out to people on places like Etsy. This is especially true with things involving major US sports teams as they tend to be very aggressive protecting their trademarks. |
What does it mean when Marijuana is decriminalized or legalized in different states but not federally? (USA) | Okay, Little Johnny Generally, there are three level of government: local, state, and federal. Kinda like you have your teacher, principal, and superintendent. Your teacher can make a rule for the classroom, the principal makes the rules for the school, and the superintendent makes the rules for all the schools. You kn... |
What is the mystery surrounding the architecture of ancient pyramids and why do some believe it was built by aliens? | the blocks they used for it are insanely heavy. we still are not 100% sure how they moved them, but we have a few viable theories that have been tested and shown to work: 1) they dragged them up ramps. this works, but takes a lot of force. they would have had to have an assload of people pulling/pushing on each block 2... |
Why is spam mail never realistic and always have weird fonts and spelling if they are trying to get people to click on them/do the service? | Part of it is that they intentionally make those mistakes because they WANT the people who fall for it to be the dumb ones. They aren't necessarily interested in fooling smart people they want the marks. Think about it. If you wanted to con someone, would you aim for super smart people, or would you aim for the not so ... |
Why light reflection/white surfaces is not used to reverse global warming? | Part of the problem is that shiny surfaces down here on Earth don't really reflect heat back into space, but rather back into the atmosphere. To *really* manage solar radiation, you need to put the equivalent of giant umbrellas in orbit to keep the radiation from reaching the Earth to begin with.Why not read the articl... |
Why did the Dreamcast fail? | Did it fail? I just had a conversation yesterday with an arcade friend who loves it, he's searching for one for myself now. 15 years later and I'm still wanting to play it! |
Why isn't it as safe to be outside during an earthquake? What if it was an open field with no buildings around? | You shouldn't run around when the ground is shaking , but after the shaking stops you should go outside as quickly as possible since you don't know if the building can still hold together. |
What was it about Navajo Code talkers that made their signals so hard to decrypt in WWII? | It was a non written language . Not including actual Navajo who spoke it only about 30 people spoke the language. None of these were Japanese. Even though this obviously limited the ability of the Japanese to learn it the talkers then spoke in the language with code words. |
what happens when lightning hits the ocean? | Lightning is caused by a buildup of positive charge on the surface discharging against a negative charge in the clouds. Because like charges want to be as far as possible from each other, while also being as close as possible to the negative charges, they will be spread out over the surface of the water. So, it won't p... |
How does my car know when something is wrong with it and why can't it tell me what it is more specifically? | Specifically, each of your tires has a bluetooth device inside the rim on the bottom of the valve stem. That device monitors the tire pressure, and sends kind of a red flag to your car's computer when the pressure gets dangerously low . Why doesn't it give you more information? Well, because it's a very simple safety d... |
Why do MOBA games require so many nerfs, buffs, and other adjustments while RTS games require so little? | Something that no one has pointed out yet is that a buff to a single champion also buffs every other champion that works well with it and nerfs every champion that it works well against as well as every champion that shares the role . That makes it a very difficult balancing act. For example, Kha'Zix, a jungle assassin... |
Do transexuals have to submit anything to legally change genders? | You know there's an /r/asktransgender subreddit, right? But yes, there's a lot of paperwork as far as legally changing name and gender in the eyes of the government. That said, most places like work, school, etc. usually are cool with changing your preferred name and gender in their records even before you get the lega... |
what is Purchasing Power Parity ? And how does it work ? | Instead of juste measuring how much money one gets compared to what someone else gains in another country with a different currency, you compare it with what buying power they have independantly of the exchange rate. The idea is to take a basket of goods that both country have and see how much the consumer has to pay f... |
How is it possible that CSX trains can move cargo nearly 450 miles on a single gallon of fuel when my car can only go 18. | There is a large reduction in drag from air. Once the locomotive pushes it out of the way, air doesn't settle completely back into place until the train has finished passing by. There is a reduction in rolling resistance with steel wheels on rails compared to tires, the contact patch per ton carried is reduced. The eng... |
How is ranking calculated for Reddit's Front Page? | Jan 1, 1970 12:02am", and so on. When you submit a post, a horse representative is dropped onto the racetrack at the time of submission. If I submit a post now, it will be dropped at the marker reading "Aug 15, 2011 1:02am." Now hopefully, my horse will start running! Every time my post gets an upvote, it gets a little... |
How come some GIFs need a "GIFV" link to be viewed, while others work without even a click? | I'm no expert, but here's my basic understanding of it: GIFs are basically a bunch of images lined up and played in order like a flip book. This can make really long GIFs massive in size, which would take ages to load since they have to save every single frame. GIFV on the other hand is more like an MP4, where it's one... |
Why do we have silent letters? What made them add them in the first place? | This is an aside, but in the 1800s there was a big push to change English spelling to make it make more sense. [There were several orthography reform proposals to make what we write match up with what we say, some of them super elaborate and basically requiring the abandonment of the 26-letter alphabet.])_URL_0_) Ultim... |
If some Octopus species are able to lay up to 70,000 eggs, how is the ocean not flooded with octopuses? | Same way the world isn't over run by rats or fish. Of the 70k eggs, not all will hatch, some eggs will die, get damaged or get eaten. Off the eggs that hatch some juveniles will die of disease, get eaten or somehow fail to reach adulthood and reproduce. Fish like salmon lay thousands of eggs, of those eggs maybe one or... |
Why do European countries have many more manual cars than the US? | Economics and inertia. The economics comes from the fact that, historically, manual cars were more fuel efficient than automatics. That made automatics more expensive to operate, and a bit more of a luxury item. But why does that make a difference? Doesn't everyone love to save money? Sure. But the US has some of the l... |
When I'm about to fall asleep, I sometimes have a semi-dream that I'm walking. Then I stumble and my leg jerks and wakes me up. Why? | It is your body's defense mechanism. This is called a hypnic jerk, and occurs when you fall asleep to fast. Your body panics a little bit when all your vitals drop so suddenly, so your body gives itself a little jolt to wake you up. I dont know about the dream part, but that could be your brain's way of processing it. |
Why after washing teeth everything tastes so 'wrong'? | Most widely accpeted answer: The foaming agent found in most toothpastes supresses your sweet receptors, and destroys phospholipds which act as inhibitors to your bitter receptors. By supressing your sweet sense, and un-inhibiting your bitter, the flavour you taste with your tounge is completely different to what you'r... |
Why are morals thrown out the window when hiding behind anonymity? | They do it to exert control over some part of their life. Often these people are bullied in school, have a poor relationship with parents, stuck in a job they don't like, single, etc. Making people feel bad on the internet is the only method they have of making anyone else do anything. |
How do periods sync? | They really don't. But, have you ever been waiting at an intersection when you have the red light and you notice your blinkers are in synch with the car ahead of you, even though a moment ago they weren't? Then, if you wait long enough, they start alternating blinking again. The same thing is at work here. So, if you h... |
What are the Pros/Cons to sending my kids to a Montessori school? | As someone who attended Montessori school, traditional school, and is now a teacher, there are quite a few differences in how kids are taught: *Pros:* * An environment that teaches you independence through tracking and completing your own lesson plan for the week* Visual and kinesthetic learning styles are emphasized *... |
(regarding YouTube) "This video us not available on your device/mobile." why? | It use to be back in the day advertisements from youtube would not play on mobile devices, so emulating a mobile device on your computer would disable any adverts. To combat this youtube allowed you to restrict viewing video's on mobile devices for people that wants the adverts played . Since this is not the case any m... |
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