query stringlengths 8 249 | answer stringlengths 45 7.8k |
|---|---|
The time travel paradox (or the hitler's death paradox) | You cannot time travel, it causes a paradox. In particular it would violate causality as in if you killed Hitler then he would never rise to the point where you need to go back and kill him, which means since you do not go back and kill him, he rises to the point you need to go back and kill him. |
Why does coffee only taste bad at it's lukewarm state? But tastes amazing if it's at a more extreme temperature? | Good coffee tastes good hot, warm or cold.Shit coffee tastes ok when your taste buds don't work ie extreme temperatures.Actually just learned this in a nutrition course. Coffee and Tea get most of their flavor from a lot of different oils and compounds . One of the most notable of these solubles are Tannins. Tannins gi... |
What exactly makes seawater salty? | There is salt naturally in the environment. Salt dissolves easily in water so any rain falling will wash it into the oceans via rivers. The sun evaporates water from the ocean but salt does not evaporate and so it's left behind. In other words, the water cycle of evaporation and rain acts to concentrate salt in the oce... |
Why is it bad to remove a flash drive without ejecting it first? | It's actually not really bad usually.But when its in the process of writing something on it and you interrupt it you can corrupt the data and the ultimate worst case scenario would be that the flash drives formatting would be f***ed up. |
Is the color magenta a real color? | Does this mean there's such a thing as fake colors? Enlighten me please, because I have no idea what you're talking about. |
What would be the effects of consuming equal anoumts of caffeine and alcohol at the same time? | Your senses would be deprived like you are drunk, but you would also have a lot of energy. Until you drink enough alcohol to pass out or both to vomit your guts out. They won't cancel each other out since it's depressing/upping different things. A chemical which counteracts alcohol/caffeine would cancel them. You would... |
Is buying a hybrid or electric car really good for the environment? | By the benchmarks of emissions and energy usage, hybrids and electric cars do in fact have a lower environmental impact than normal cars. There's a lot of articles that indicate otherwise, but the ideas expressed in those articles are largely based on two faulty sources, the Daily Mail and CNW Marketing, that do not st... |
why are numbers on a Swahili clock pronounced as the opposite number? | They use standard clocks, but that's not actually how they tell time. Because they are at the equator, there's not much variation in the length of the day, so sunrise/sunset are roughly at the same time all year. Seven a.m. is one hour after sunrise, so they call it one in the morning. Six p.m is 12 hours after sunrise... |
What is this greyish blob? have seen it on multiple computers when browsing reddit | It's just an image: _URL_0_ It's part of that subreddit's style.I think its a bit like the people on youtube making comments with a fake default profile image, with a bug over it. The goal is to make you believe its on your screen. Example : _URL_1_', "It is the background image for /r/creepy. Here it is on its own: _U... |
If President Obama is the head of the Executive branch, that is in charge of Law Enforcement, why hasn't he said anything about police brutality in the recent weeks suspects? | The executive branch is absolutely not in charge of law enforcement. That's the concern of each individual state. Also he had [this to say about Ferguson] |
How do animals hibernate for so long? | I can answer the poop part of your question. Bears eat tons of grass prior to hibernation to form a butt plug. This keeps them from defecating. I'm sure other animals have a similar mechanism. |
How does the modern economy work vs the previous and old systems where people traded goods for other goods, or used shells or beads? | [Try this]. Lots of commentators seem to like it.Economics works the same way as it always has. Money is just a medium of exchange. A convenience. But it has no intrinsic value. Economics works on supply and demand. Demand is anything that people value, for whatever reason. There was a stretch of 1,000 years or so when... |
M. Night Shyamalan's demise | He made ~2 good movies and then most of his later work was subpar. It happens sometimes, people get lucky and do amazing work a few times and then remain subpar the rest of their life. Also, another issue is that M. Night Shyamalan movies usually have a twist, which made his first movies interesting but after a while t... |
Why people don't have any memories from the first 2 or so years of their life? | the brain doesn't actually develop the capacity to store long term memories till several years after birth. The brain goes through a lot of stages in life, becoming more complex and more structured, till around 22 years old. |
Why do long jumpers do weird random seemingly pointless movements before they run and jump? | There's a certain technique for each jump. Jumpers have to count their steps, and how many of each type of step they have to take before the jump. Source: ran decathlon in high school |
Do deaf people get rhyming? Do they have their own poetic patters based on how they experience language? | Iirc there is a similar thing to rhyming in asl. The meaning of signs depends on many things including hand shape and position in regards to body. So a sign that includes a certain shape signed over the chest could "rhyme" with a similar shape signed over the hip.I'll add a second question. Do they sign in their head a... |
Sometimes people on TV say "is this a secure line?" Is this a real thing? | Usually in movies it means "Can you confirm the line you are calling from hasn't been tapped?" and this is fairly easy to verify if you're using a phone no one would expect you to use, like a random payphone. As several other redditors have pointed out, for a connection to be confirmed secure in the modern era , it's i... |
What is a mail order bride? | There are organizations that provide matchmaking services between American men and women in countries with less opportunity. The stereotype is that the women come from Asian countries, but Russia also appears to be popular these days. The prospective groom chooses one or more women from a list, then corresponds with th... |
How do you properly warm up an engine? | There is more or less 2 phases to warming the engine. First, you should let your car idle 20-30 seconds. This ensure that the oil is travelling through the engine, lubricating it. After that, you can drive normally. Your engine is still not at optimal temperature, so DON'T push the car. Dont rev too high or floor it un... |
when commercials say "Next 20 callers will receive..." How do they keep track of that? | They don't. It's just a ploy to trick people into calling immediately rather than thinking about it first. |
Why aren't countries referred to by the native word for them by the other countries? | Many languages have sounds that other languages don't. It's why many people with the same first language have similar accents in a second language . If the sound or technique used for pronunciation of a particular word is foreign, it 'd be difficult for outsiders to say. On top of that, other languages can have differe... |
How do chess players guesses how many turns are left to a match ? | Usually they aren't guessing -- they are actually playing out the best possible moves in their head, and seeing that in a certain number of moves someone will win. |
how does the moon work? | It doesn't change shape. What is happening is that only half the Moon is illuminated by the Sun. As it orbits the Earth you can only see the entire half that is illuminated during a Full Moon, none during a New Moon and various amounts between those 2. |
why all oil trading everywhere has to be done in US dollars | It is? Do you have a link? Are you sure the USD is not just used for pricing purposes because its the world's de-facto currency for international trade? *And before the Euro people jump down my throat on this that doesn't mean the USD is superior to anyone but it is also the go too currency for defining "how much somet... |
If the Constitution protects against double jeopardy, how can trials go an appellate court? | The process that happens in an appellate court or other higher court is not considered a separate trial, but rather a continuation of the original trial. What the appellate court tries to determine is whether the first court did a good job deciding the case, not if the defendant is guilty or not. The American Bar Assoc... |
Why it's possible to stop breathing voluntary but not your heart beat? | Here's the real answer: Your diaphragm and intercostal muscles are under voluntary control. Your heart is an involuntary muscle. Your heart can also become denervated and still beat relatively fine. This is why people who are C2-3 quads don't die but need to go on ventilators. This is why heart transplants work. |
how can movie trailers show clips of the movie, which I assume is finished, but not be shown for another year? | I assume you're talking about the Batman v Superman trailer. They've finished filming and probably finished editing too. They're advertising for the movie so early so people know it's coming. We probably won't get another trailer like this for at least 3 months but this early trailer just gets people excited. It lets p... |
Is there a limit to the “sound quality” that our ears can hear? If so, will recordings ever reach that limit (or maybe even surpass it)? | We cannot hear sound above or below certain frequency limits. No matter how good the recording is at reproducing them, even if an electronic device can hear them, we cannot hear these notes. |
Waiting for Godot, and why it's considered amazing | Waiting for Godot is a weird and meta play, but I'll give my take. Godot means "Little God" in French. So, the characters waiting for some form of savior character day after day for eternity. Meanwhile, they complain constantly about their situation or just passively accept it Neither character is doing anything to mak... |
Why are some house flies loud and some silent? | This is a simple case of their genetics. Different sized flies, having different weights, require different amounts of lift to remain airborne. Depending on wingspan, and their strength, an insect will beat its wings at different rates. A butterfly, with large wings, will displace more air per beat, thus generating mor... |
How do home shopping tv channels like qvc and hsn stay in business? | Old people are their market. Old people hate computers and buying things they're not certain about. They see the product, and a smiling salesman, they don't have to read anything or search for it, they pick up that phone and say what they want. Edit: and if I had to guess, I'd say they don't mind paying a little more f... |
How weather prediction works and why it requires massive computing power | We take the atmosphere and divide it into really large slabs - about 20km on both sides horizontally and about 1 km up. With each of these slabs there are some well understood equations around the amount of air that's going to flow into and out of each of the six sides. Unfortunately this movement depends on the pressu... |
What are electromagnetic waves? | Light is an electromagnetic wave . Thus all EM waves travel at the speed of light. Light is a form of energy so different electromagentic waves have different amounts of energy. Light that contains very little energy are things like radio waves and microwaves and infrared light. We use these waves in our everyday lives... |
Why, in boxing, does the referee continue to count after a downed fighter stands back up? | It is called a standing 8 count. It basically gives the ref the ability to judge of the fighter is able to go on, or is he is essentially out on his feet. Also gives the fighter an extra couple of seconds to compose himself before continuing _URL_0_ |
Why does 76 F/24 C with the heat running feel different from the same temperature with air conditioning? | There are lots of things going on with how you think a temperature feels but the basic idea is that we don't really sense the absolute temperature. We sense differences in temperature. The simplest way to see that is being outside on a hot day vs. coming inside from a cold day. When you come in from a hot day you sense... |
How does sleep restore energy and what causes your brain to signal you to become exhausted? | Sleep doesn't really restore energy, your body is actually kind of tricking you into resting by producing chemicals that make you feel exhausted. Make no mistake, you need sleep to avoid long term damage to most of your systems; feeling tired is an illusion though. |
Why do some companies have different names for different countries? Like Lynx/Axe or Asda/Walmart | In the case of Asda/Walmart, Asda was already an established chain of stores - Walmart buys it to a) gain presence in the UK where it has none and quickly b) instantly gain Asda's customer loyalty and logistics In the case of Lynx/Axe, those are brand/tradmark issues. Essentially Unilever couldn't register Axe as a tra... |
How come people can use quotes in movies without citing the source and it's fine, but if you don't do it in writing it's plagiarism? | It depends on the type of writing. If you're writing a novel you can use quotes as see fit. In academic writing you need to cite anything that isn't your own original work which includes quote. |
Why is there an obvious difference between girl and boy handwriting? | Handwriting style is formed during penmanship practice in grade-school homework assignments. Girls are not just more fastidious about their penmanship homework, they are notably more fastidious about all graded assignments in grade school than boys are. There are lots of different explanations for why this is more obed... |
How did we get from the "Golden Age" of Air Travel to the current state of air travel? | The golden age of air travel was also the golden age of family road trip vacations. The services were caused by minimum price regulations that placed a very high minimum price for a flight . Because it costs far less than $1500 to fly across the country, airlines competed for travellers by offering services. When the r... |
Myspace came first, but Facebook is more successful. What happened and why? | People thought Facebook was better, then everyone switched over almost at once. MySpace wasn't first either; before that there was something called Friendster, and before that I personally used something called AsianAvenue, which was social networking for Asians. Each time, everyone switched almost at once. In fact, th... |
How come we can't change the volume of the voice in our head? | Because they are thoughts; it’s not a literal voice that is creating vibrations against our eardrums. |
Going along with the trash to energy question - Why arent we using the methane produced from decommissioned, sealed landfills as energy? | we are. some outfits do this already. however this is a SMALL SMALL portion of total power output of the nation. |
Why are states on the east coast so much smaller than the states on the west coast? | The states on the east coast were populated first . State lines were devised in various ways, but all dependent on much of the east coast being populated very early. In other words, there were lots of people clumped up into various areas on the east coast and they divided themselves into colonies and then states. It to... |
Why can't game streamers have music playing in their videos, but there are countless music videos and songs on youtube already? | If you post a Youtube video of somebody elses song, an advertisement will pop up on the video and the ad money would go to the artist/company, not you. So basically they are claiming your video as soon as it's posted to Youtube. A stream is harder to monitor like that considering it's live and the people who own the we... |
Does the start/stop feature in modern cars actually save fuel or is it just a gimmick? | Modern cars with direct injection are very easy to start up. They require less RPM and are much more reliable than they used to, so it takes far less energy to start up the car, especially once it's already warmed up. This means that it only takes a couple of seconds of idling to be worth it, even though it's not very ... |
How come when we look at something bright, we can see the image burned into our eyelids when we close our eyes? | The way we see is that photons from objects stimulate cells in the back of our eyes. This stimulation takes the form of light-sensitive molecules changing their shape as a photon hits them. When they are in this changed shape, they send a message to the brain saying "I'm activated", which the brain interprets as us see... |
Why do some humans feel lonely, despite having people around them such as friends and family? | Having people around is not the same as connecting with them. Lonely is an emotional response; proximity is physical.Well, it's kind of complicated, but an ELI5 would sort of be like : Some people have a few very good toys, but sometimes, they just don't like to play with those toys, or they just don't find those toys ... |
What is the US Gun Lobby and how does it have such a large political influence? | The gun lobby is just a group of organizations and activists who believe in protecting and expanding legal access to firearms. The largest and most powerful organization is the National Rifle Association . The reason they're so powerful is because they're incredibly well-funded, which gives them deep pockets to wage me... |
I am not an American and don't know why John F Kennedy was/is so highly thought of | Honestly, mostly because he was young , handsome, charismatic, and he was assassinated before his time. In short, he was perfect martyr material. Also, people looked to the young president as the symbol of hope for a better future. After his death, we instead got the Vietnam War and the general chaos of the 1960s. I su... |
how does drinking water coming into NYC not get dirty from the pipes? | Why would the pipes be dirty? Water utility workers will occasionally open valves and hydrants to blow sediment out of the mains, but for the most part they stay pretty clean unless there's a major break. |
How can the law restrict us to so many work breaks but smokers can take how ever many they'd like? | > Why is it that if I were a smoker I would have no problem taking several breaks throughout the shift? Because your employer is treating people unfairly. There's no law about smoke breaks. This is entirely an issue with your employer's break policy. |
Why do humans scream when scared? | To signal others about the danger. It's typical for social species to instinctively let out cries or other ways of warning the others of the tribe about approaching predators or enemies. Such collective defense makes both the group and its individual members safer. |
What does music sound like to animals? | I actually think this is a really good question. I enjoy some pretty heavy music and I've played it around animals before. It seems to me that if you had an actual person in the room screaming his lungs out a dog or cat would respond to it, but they seem pretty indifferent toward that kind of thing coming out of a ster... |
What does it mean to be an offside player in soccer? | A player has crossed the other teams defensive line, past the last defender before the ball has. So there is an unfair advantage, it prevents goal camping from the offenseA player is in an offside position if they are past all of these lines: 1. Half way line2. Line of the ball3. Line of the second furthest opponent Ho... |
Why does earthquake depth matter | AHA! I *knew* my oceanography could help someone! The Earth is unique among a lot of planets due to our *plate tectonics*. This is basically stating that Earth is like a giant puzzle, with HUGE pieces constantly being moved, where they are pulling apart/sub-ducting under/grinding against one another. California rests o... |
How does calorie counting make you lose weight if you eat the extra calories gained by exercising? | Wow - you seem confused. First of all: Check out _URL_1_ Second: Work out your Total Daily Energy Expenditure here: _URL_0_ If you want to lose weight, then eat 500kcal below this value CONSISTENTLY. Note that the TDEE calculation takes exercise into account. You can absolutely lose weight without exercising, I will ju... |
Why does cheese taste so much better when it's melted? | It doesn't. You just like it better. Also, 'cheese' is not all the same, there are probably hundreds of varieties ", 'Matter of opinion my friend. My opinion is melting cheese makes it oily, almost plastic in texture. Not something I wish to put in my belly. :D', "I'm guessing for you it is more texture and temperature... |
Why does my 21 inch LED monitor support 1080p but my 32 inch LED tv only does 720p? | You are meant to sit closer to your monitor than you are to your TV, therefore resolution matters more on a monitor than it does on a TV. That being said, there are several models of 32" TVs that support 1080p perfectly fine. One that only goes up to 720p is a cheaper model, or several years oldIt has to do with the si... |
Why do all artificial flavors taste the same, e.g. watermelon, but nothing like the actual fruit? | Not a complete answer by any means, but banana flavor is actually super interesting. The current banana we are all familiar with has zero genetic diversity. In fact they are pretty much all genetically the same plant. They can't even be grown from seeds any more since, well, when was the last time you found a seed in y... |
What gives milk its white colour? | The white stuff it contains: * [Butterfat], which is a bright yellow color* [Lactose] , which is white.* Proteins, mainly [casein] which is rich in calciumThe white color of milk is because milk contains particles of a protein called casein. These casein particles are not dissolved in milk like a sugar or salt, but rat... |
How was hydrofluoric acid contained or used before plastic was invented if it eats glass containers? | It was held in glass bottles that had a coating of wax inside. *”And, like many other acids, it also reacts with metals, so storing it is a bit tricky. Where do you put something that eats through its container? Well, these days it’s stored in special plastic bottles, but in the 17th century when it was first discovere... |
Role of Food preservative. How do some processed food claims 0% preservative added, and yet they could be used for a whole year? | That food might naturally be that shelf-stable; the only claim is that they don't *add* preservatives. It's like how fruit juices advertise "no sugar added" because all the sugar came from the fruit themselves. Of course, without a specific example this is just guesswork. |
How does someone with the name 'Jose Torres' become a white supremacist? | I know, right? I was wondering that, too. I guess we're products of our environment. Throw a Jose in a pack of white supremacists, and he can turn out racist too |
Why do i dream more when i sleep after I have been reading? | Actually, you dream about the same amount every night ; it just depends on how much of the dream you remember. Memories are kept more often if they're important, vivid, or recent. Considering books are only successful if they satisfy both former characteristics, then your memory will contain more recent and memorable m... |
How does a woman's body know to sync menstrual cycles with other women that are frequently around? | This doesn't actually happen, though it is a commonly cited myth. Multiples studies have shown that there isn't much truth to the "menstrual sync" hypothesis, though it can *seem* that way. In any group of adult women, chances are that 1/4 of them will be bleeding at any given time. If they're living in close proximity... |
Why are knives and swords curved? | It gives the blade a point to drive forward, if that makes sense. Imagine you have a big juicy steak in front of you. You grab your fork and knife and get ready to cut a bite. Your knife is perfectly straight from the handle to the tip. As you try to cut your steak, the tip of the knife keeps stabbing at the meat and i... |
How do planes avoid collisions above the Atlantic where there is no radar? | There are airplane “highways” usually separated by 10 000 ft. East you fly odd and west you fly evenplanes have their own radar plus the pilots have windows and, as others point out, there are standard flight lanes/rules you follow to prevent collisions', "Any plane that has a 10 person capacity or greater is required ... |
Why do flies and most flying insects seem to intentionally keep bothering you after swiping at them multiple times? | That's a bit like asking you why when it's hot out three days in a row you don't just move to another UNIVERSE. They aren't smart, their worldview is about 1 bazillionth of a second in front of them and a foot around them. They are running on auto-pilot and the auto-pilot programmer was a mouse, who was in a coma.They ... |
Why does healthcare in the USA cost so much more than elsewhere, is it better than treatment elsewhere? | In the UK everyone contributes to healthcare via taxes. More people contributing to a communal pool means lower overall costs for everyone. In the US everyone has to buy their own insurance and many people don't/can't. Smaller amount of people contributing to a communal pool means higher overall prices for everyone. Ad... |
In the Star Wars Universe, are lightsaber duels decided by whoever is the stronger force user or is it more of a skill based battle? | It is a mixture of the two since the force effects your reflexes, physical strength, focus and predicting your opponents moves. Rey may well have been just as strong in the force as Kylo but she also likely had some skill with physical weapons based off the fact she carried a staff most of the time leading to an even-i... |
Why do we feel sleepy in warm temperature rather than cold temperature ? | I learned at least one of the reasons for this from a professor last semester. He's a kineticist and very into endurance running -- and he told us just exactly why the perfect running temperature is what it is: Pyruvate kinase Essentially, the heat outside actually interferes with the body's ability to make ATP, the en... |
why do ebooks cost more than paperback? | I have never seen an eBook cost more than a physical version of the same book. What makes you think this is a thing that happens?', "You're absolutely right.I think that has more to do with the demand of physical books having gone down.More people find it easier to just download an e-book and so the demand for that is ... |
Why do most toilets have handles and not pedals? | I believe this problem has been erradicated with the installation of, the bathroom sink, in which to wash your hands afterwardsHandles were designed to be a lever to lift the rubber/silicone stopper that holds the water in the tank. traditionally its placed higher on the tank to facilitate easily being able to reach it... |
If the House always wins, how come most casinos go broke? | Casinos have tremendous fixed costs. They are in A+ locations that require huge loans for land and building. They have to purchase furniture, televisions etc. They also have to purchase gaming tables, electronics, and systems. They also have to pay more labor than most service industries. There is cleaning staff, manag... |
What do radical terrorists hope to accomplish? What draws people into such groups as Al Qaeda? | Actually, Al Qaeda had a published 20-year plan. It called for engaging the infidel in countless small conflicts, dividing their forces and wearing them down economically and in public support by attrition. It hoped that the government would become oppressive in the face of the threat, resulting in more Muslims rising ... |
Why is a recent (less than a year) prescription required to order replacement contact lenses or glasses when it's OK to wear existing lenses or glasses for over a year? | I get my eyes checked every year and because of my health insurance, I only pay a small copay for new glasses/contacts. You should be wearing the best corrective lenses for your eyes so if you have not gone to see your ophthalmologist in over a year, you should. Its not really OK to wear existing ones if your eyes have... |
why did detroit fail? | In the 50s and 60s, the United States was the only country producing reliable, quality vehicles meant for a middle class population. BMW existed in Germany, and Rolls Royce in Britain, but neither company made affordable vehicles. In the 70s and 80s, however, this changed as Japan and South Korea finished rebuilding an... |
How prominent does a person have to be for killing them to be assassination rather than murder? | Assassination is murder but murder is not necessarily assassination. Assassination is usually connected with killing someone for cause not personal or even necessarily related to the killer in any way. It tends to be a job usually done for others. The term "assassinated" is usually used with the killing of people of pu... |
Why do passengers have to open airplane windows during takeoff and landing? | It's so the flight personnel can see the engines/wings to ensure no issues. However, I've never heard an attendant say to open windows for landing/takeoff. |
Why do servers crash during a big launch? Wouldn't the company have countermeasures to prevent that before the launch? | It can be really hard to correctly estimate how much strain a big launch will put on servers. How many people will really be playing? If you could accurately predict that for each major launch, you have a very lucrative skill. Mostly it cannot be done. Oh, companies can get rough figures but you never truly know until ... |
Why don't American coins have numbers? | So back in the day a dollar was a silver certificate that you could exchange for a dollar worth of silver. Coins used to be made mostly of silver, so a quarter had 25¢ worth of silver and a dime 10¢. There used to be a half dime, but it was deemed to impractical because of how small it was, so the nickel came out in a ... |
Why did something that costs $45 dollars at Walgreens cost me almost $2000 at a hospital? | You're not just paying for materials. You're paying for a whole host of services. For one thing, a medical professional was available for you. Having a staff of residents, nurses, doctors, etc. isn't cheap. After all, they're not like potential cashiers or janitors where anyone can perform the job. Rather these people ... |
Why does hot water feel significantly hotter on my face than on other parts of my body? | A more sensitive and dense pattern of nerves and minute vascularisation in your face. Your back/thigh/arm doesn't have the same amount or type of nerves as your face. Your head is highly vascular as well, and is the warmest appendage from the core. You regulate your skull temperature quicker to keep your brain in its h... |
If illicit substances such as drugs were legalised, what would become of the black market? Would there be demand for something else? | If there is way to make a profit the black market will find it. Take cigarettes, they are legal but because of the high taxes placed upon them it is possible to buy them in places that have low or no taxes and then sell them to retailers in areas with high taxes making profit for the black marketeer and a little more p... |
In theory, could an object with the mass of a grain of sand hitting the earth cause the same damage as a huge asteroid, if it were traveling at a fast enough velocity? | First of all, > Energy = Mass times Acceleration This is wrong. Force=mass *acceleration. Energy = 1/2 mass *velocity^2 . To answer the question, if you were to ignore the atmosphere, *maybe*. In real life, earth is surrounded by an oxygen rich atmosphere. As soon as that grain of sand hits the atmosphere, it would com... |
why can company's like U.S. Cellular claim to have 4G coverage everywhere but in reality, only have it in very few places? | They absolutely never claimed that. That would be a complete lie. They always publish maps showing where they have 4G coverageCan you provide a little more evidence of that claim? Verizon/AT & T have been at war over this issue and use slightly different terminology to make their claims, but I 've never seen U.S. Cellu... |
Why are so many Americans afraid of having voter id laws? | Some 10% of Americans don't have photo-ID, and that group tends to be the elderly and the poor |
What does a runny nose actually do for recovery, like from a flu? | It prevents additional viruses from entering. As the immune system is busy handling one virus it leaves the body open to attack from another virus. To prevent this there are several other defense mechanisms that turn on like increased mucus production, lack of hunger and tiredness. The flu virus and influenza virus doe... |
Why do we no longer use supersonic commercial flight? | It's not profitable. This has been discussed several times today -- if you want more info, the search bar will help you out. |
How do DVD players remember where you left off on a movie you haven't had in your DVD player in years? | Some DVD players have storage. They basically save a unique identifier that is tied to a specific disc image and time point in the film. If that disc is played again, the player knows what point to resume play from. It's not really a matter of how long it's been since you last played the disc, but rather how many discs... |
Is it bad to hold back sneezes? Like pinching your nose to block the sneeze etc. | Every time I hold in a sneeze I almost shit my pants. I literally can picture the sneeze working in reverse and trying to come out the other end. |
Positions and Payouts in The Big Short | Michael Burrey ended up walking away with $100 million personally and $700 million for his investors which worked out to a 490% return on their investment. The small guys, Geller and Shipley, turned $15 million into $120 million. Mark Baum and his crew turned $100 million into $1.5 billion. At the end, Mark Baum discov... |
How were the lights synchronized in Lady Gaga's halftime show? | The drones use Intel's realsense technology combined with infrared LEDs, allowing the drones to know where each other are and form a sort of wireless mesh network. Once the drones know where they are and where they are supposed to be, you can program them. Example of drone formation from 5 years ago: _URL_0_ |
Why two signals at different frequencies can coexist? | It's just like sound. If you press two keys on a piano, you hear a sound that is different from the sound either key makes by itself. The combined waveform has components of each note's frequency. A more selective receiver, the kind that only hear's one note, like the kind your radio uses, works differently than your e... |
How many color combinations are possible with choosing 4 out of 7 colors if colors can be repeated and which formula is applied in this instance? | 7^^4 = **2041** of possible combinations Someone correct me if I'm wrong, but this should be it E: Wrong, it's **35**, see below |
What causes alkaline batteries to leak when mixed with other types of batteries? | All batteries of the same size pretty much always put out the same voltage regardless of what they're made of, so I think it may be a case of the other batteries may leak and they just copy-pasted the same safety warning. Those cheap "Heavy Duty" batteries you see in dollar stores are I believe Carbon-Zinc or Zinc Chlo... |
If I fall asleep at 12:30am and naturally wake up at 6:30am, will I be better or worse off then getting 2 more hours of sleep, but waking up to an alarm? | I heard it's best if you get up the first time you wake up naturally. It's your natural cycle. Majority of people need around 8 hours but there are people who just need 6. some might need 10, it depends. I've noticed myself that I'm less tired if I get up the first time I wake! You should try it :) |
How do computers remember the time even after they are shutdown/ plug pulled? | Tiny battery in a component known as an RTC, or real time clock. These components use so little power the battery will usually last the lifetime of the computer. |
How can they tell how many people watched certain TV show? | They use Nielsen ratings. Certain households, called Nielsen families, participate in a program where they log everything they watch. These statistics are extrapolated to the whole country. So the viewership numbers you hear are estimates based off the number of Nielsen families that watched that show. |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.