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How is colour restored in old black and white photos through picture editing software (Photoshop etc) and how does the editor determine which colours were present in the original setting? | Yes, they just guess the colors. Sometimes there are some good clues - army uniforms are of known color, maybe someone remembers Gran's dress - but other than that, it's guesswork or stylistic choices. |
How legal is the stuff people put at the bottom of e-mails/forms? | > How legal is the stuff people put at the bottom of e-mails/forms? Not at all. First off, there is a thing called the Doctrine of First Sale which says that, when you sell a book to me, what I do with the book afterwards is not your concern. It isn't 100% applicable in this case, but I would expect that good lawyer co... |
Why do TV channels run both national and local ads. Shouldn't one always more lucrative than the other? | Some companies purchase ads on a national scale. Let's say, Hebrew hotdogs is our company. And cbs is the station. They pay a certain amount to buy so much of their ad space at certain peak times. Cbs the sublets it's regional, let's say Joplin MO ad space for the region. Some of the ad space is reserved for national b... |
The science behind why some foods taste better or different the day after being prepared. | Entropy increases over time. The individual ingredients in, say, a pot of chili will exchange more molecules, the beans will absorb more of the fats from the meat, the meat will become more tenderized due to the acids from the tomatoes, etc. You can help the process along with low heat, but time helps too. |
Why does the word "diving" has two distinct meanings related to swimming? | The old English word that became "dive" is roughly translated to mean sink, and there's an almost identical old Germanic word meaning "submerge". Diving involves either getting submerged/sinking from outside the water, or getting more submerged/sinking further while you're already in water. The way we use the word dive... |
Why is cancer so difficult for us to understand/cure | It's like asking, "Why are viruses so difficult for us to understand/cure?" Because there are thousands of different types of cancers, all with their own causes, how they work, what kinds of tissues they involve, etc, etc, etc. The media likes to make it seem like cancer is just one disease, but it's not. What causes o... |
When documents are leaked to the public, how are they verified to be authentic and not faked by the person/organization that released them? | In the case of Wikileaks, the sheer volume is proof enough. Add onto that conversations with people in the leaks can confirm that those conversations are real, along with things being talked about lining up perfectly with real events. Add onto that wikileaks general reputation of putting out real leaks theres no reason... |
Why do games use "hitboxes"? | Because collision detection with polygons is computationally taxing. Take, for example, one used in 2D: SAT. With every new axis, you're increasing the complexity by a massive amount. Additionally, complex hitboxes doesn't play well. Imagine your playing Mario, you try to jump on a platform, you miss, and then you get ... |
Why is the black stuff on charred food considered a carcinogen? | Cooking meat at high temperatures causes some of the amino acids that make up the muscle tissue to chemically react to form two classes of carcinogenic compounds: [polycyclic aromatic hydrocarbons] and [heterocyclic amines]. How exactly these types of compounds cause or promote cancer is incredibly complex and not even... |
Why do we find rain soothing? | I like to think it's more like a continuous sound that our mind somehow latches on to and makes us subconsciously focus on that instead of the myriad of other things our mind tends to focus on. Like sleeping with your head on the chest of a another. It's very relaxing. Perhaps this can even go back to when we were a ba... |
Why do people of hispanic decent wave the Mexican flag at american political events? | Well, they aren't just 'Hispanic', they are typically immigrants from Mexico, or at least first generation. It is to let the politicians know that there is a large Mexican immigrant population and that they need to listen to their voices. Personally I think they are going about it the wrong way. To me it says 'I am Mex... |
What's actually happening when you feel "butterflies in your stomach?" | When the body it put in a stressful situation, it goes into fight or flight "mode". This "mode" is the setting up for the body to either run away from the danger, or fight it off; blood pressure, heart rate, and perspiration rate are increased. It's believed that its a combination of both the increased blood flow to th... |
What are SATA, SSD, SSHD & Thunderbolt drives? What should they be used for? | SATA isn't a drive, it's a interface used to connect drives to the motherboard. Your HDD and CD/DVD drive are connected to your motherboard using a SATA cable. There are also multiple versions: SATA 1.5 Gbit/s, SATA 3.0 Gbit/s, SATA 6.0 Gbit/s. SSD stands for Solid State Drive, it's like an HDD, but instead of a disk i... |
How does a mental or personality disorder affect someone's ability to control their behavior? | This is a very broad question with different answers depending on the specific disorder being discussed, but broadly-speaking there are two different answers to your question. Certain disorders can cause certain types of hallucinations which convince sufferers to undertake certain actions or to refrain from certain act... |
Why a 2 gb flashdrive is less expensive than an 8 gb. | On a related note, why do 2 oranges cost more than 1?', "The 8 GB requires more precise equipment than the 2 GB; you need to fit more in a space of the same size. As well, the technically don't require the same amount of material; the way the drives are made, the 8 GB is using more material in a more compact form than ... |
Why is it that if I imagine a swinging pendulum, it feels like it takes an amount of effort to imagine it coming to a sudden stop? | Because in your simulation, you know as a hardwired fact that if one thing changes, it has to affect another thing. For example, imagine a very light swinging pendulum. You imagine if would take no effort at all to stop. If the pendulum was heavy but your brain wanted it to stop immediately, then it would pretend you a... |
Can somebody explain capitalism to me please? | Capitalism refers to an economic system that is free from government influence. It is comprised of privately owned industries that conduct business without regard to any formal law. The only true capitalist system is the black market, but certain countries, such as the U.S. or Germany, are said to be capitalist because... |
Why do I like to sleep with a blanket, even when I'm already warm? | Its something you are trained practically since inception. Being snug in a blanket or sheet imitates the womb which gave us comfort in the early years of our life. Infants and young ones can often be calmed just by wrapping them in baby blankets. edit:conception*', "It's more of a comfort thing than a warmth thing. Als... |
Why is it that snowflakes are always perfectly symmetrical and hexagonal? | The underlying crystal structure of water is hexagonal, so it's natural that something made of ice follows this if allowed to grow that way. As for why symmetrical - well, they often aren't perfectly so, but they're very small, so once a seed has formed it's likely that the whole thing will be exposed to the same condi... |
Do people who are born blind dream? And if so, how? | The short answer is "Yes, but not visually." Studies have shown that people born blind, also called congenital blindness, do not have any, or very little, visual aspects in dreams because dreams are made up of real-world experiences, and thus, if you 've never seen anything, your brain can't bring up anything visual wh... |
Is excessive laziness a sign of depression? | Definitely a symptom of depression. I'd speak with a doctor or therapist. There are plenty of non drug methods for getting out of depression. Unfortunately I am one of those lucky ones who needs the meds to be a functioning human. |
How can the universe be a simulation? | Theoretically if we would improve our computing power to unimaginable figures we could simulate a whole new universe. Imagine a sims game, but very, very complex. Universe is all maths, if you could write down all of the rules down in a program and run the program with some mass in one spot, boom a whole new universe w... |
Why do my speakers make this loud, buzzing noise when I unplug the cable? | Do you mean the soft buzz when it's unplugged? Or that cracking noise while you're removing the plug? In general, the sound of the speaker is generated by a voltage signal on the electromagnetic coil. That coil moves the diaphragm up and down to create the sound. When the cable is unplugged, it usually picks up the tin... |
- Why do entire strands of Christmas lights not work if one bulb is damaged or taken out? | most lights are wired cheaply in serial, each light is connected to the previous light, remove one light and its the same as cutting the cable with a pair of scissors, the electricity cant flow. Electricity needs to flow in a complete circuit. If the electrical current can't get back to its source it doesnt flow at all... |
How does BoltBus stay in business charging $1 fares? | The $1 tickets can be difficult to get sometimes, especially for high demand routes. If I want DC to NYC, I have to get that ticket around a month early. I think BoltBus strives on customers buying tickets within a closer window and paying full price. |
How can I know im tasting x if I never tried x before. | While you haven't tasted lavender, you've probably smelled it before. Smell is a large part of taste, so when you taste lavender it kinda tastes like what lavender smells like. |
why is wearing someone else's glasses 'bad for your eyes'? | Your eyes are constantly adjusting and getting used tonnes stimulus. Put on a pair of someone else's glasses and the image gets all distorted, so your eyes refocus to try and undo the effect. This strains your eyes, which is uncomfortable, and your eyes may struggle for a few minutes after taking them off, but it won't... |
Why will it take 5 minutes to load a .gif on my phone where as the actual video will load almost instantly!! | GIFs are actually very poor at showing video. They are meant to be just a picture, but are able to display animations as well. Video is much, much more efficient as far as data usage.Loading time depends on the size of the media you're watching. The difference is on how gifs and video are stored. Gifs are just complete... |
How would fusion explosions thicken the Martian Atmosphere if any melted C02 would just be stripped away by the solar wind? | It takes millennia for the solar wind to wear away the atmosphere. It's a very slow process. |
What would a society without a lower class—or at least poverty as we see it today—look like, and how could it function? | you mean like Scandinavia? high progressive tax rates a month, you can then also apply for other benefits. nobody ever lives on the streets unless they are addicts or choose so. |
Why is it impossible for my eyes to focus on this image? | It's called facial recognition. Your mind refuses to accept the image as it is so it tries to rectify why the face doesn't make any sense, thus the scanning around the image constantly. |
Since our brain can quickly remember music that we heard before and we can actually "play" it in our head, why do we feel the urge to listen to the actual thing? | The same reason masturbation just isn't the same as intercourse. Hearing music releases feel good chemicals, whereas, playing it in your head doesn't to the same extent. |
Why can't we move our eyes individually? | The visual center of the human brain combines the information that it receives from both eyes to form a picture of what you are seeing. If your eyes are not both looking in the same direction at the same thing, you get a confusing effect like a double-exposed photograph. There do exist some species which move their eye... |
Why does the Sun hurt my eyes, but not a regular fire? | The sun's brighter. Wayyyyyy brighter. Sure, it's less bright than it would be because it's quite far away and going through the atmosphere dims the light slightly. However, the Sun is still *extremely* bright. It's brighter than any fire could ever be since it's not actually a ball of fire, like people often say - but... |
Why some actors repeate their manners throught movies? Is this correct acting? | There really isn't such a thing as "correct." I agree that many actors seem to just play the same character in every movie, and I suppose a more versatile actor could be considered more skilled. But this is neither correct nor incorrect. Hollywood logic nowadays is that people like predictability. If they cast a certai... |
When someone has a limb amputated, where and how is that limb disposed of? | What i want to say: All-You-Can-Eat Ribs By the Dumpster buuuuut the real answer is. That depends on a number of factors including: Any health-related issues suffered by the patient.Whether or not the limb may need to be preserved for additional medical testing or as evidence in a criminal case.The personal or religiou... |
How does the copyright system work on YT? Is it enough to fully credit a song maker in the description or does an algorithm search for..something all the time? | > Can I use a song and credit the song maker in the description No. Crediting the owner of the copyright does not absolve you from the penalties for copyright infringement. Youtube has systems that constantly scan for infringement and automatically take down videos. People constantly find ways to avoid them, and YT con... |
When I stare at something far away through a mirror close to my eyes, are my eyes focused on the mirror or the far away object? | You're staring *into* the mirror. If you're staring at something 100 ft. behind you in the mirror, you'll have to adjust your eyes as if you were looking at something 100 ft. away. |
Why are headaches and toothaches much less tolerable other kinds of body pain? | As far as teeth go, it's that teeth nerves are hardly shielded at all from debris and other shit. Cavities are basically tunnels leading to nerve endings. If we had our nerve endings exposed in such a way, it would also hurt quite badly. The equivalent of a cavity would be for someone to stab a hole in your skin, going... |
Why can literally no one recreate new car smell in a bottle? | Part of the allure of a "new car smell" is the excitement of stepping into a brand new car fresh off the assembly line, free of dirt, dust and human skin cells. "New Car Smell" seeks to recreate that experience, rather than emulate the actual smell which is the smell of phthalates, VOCs and offgassing glues and maybe t... |
Why do bad smells seem to be so much more resilient than good ones? | I would assume that it is because bad smells are most often things that can negatively affect our health, like feces and rotting food and we should avoid as long as it is around. The running shoes example doesn't exactly fit, although that may be due to cultural/evolutionary distance from apes in the same way that swea... |
When I give my bank statement out to apply for an apartment, what does that show them? | it's unusual but not totally out there. 1) it shows you able to maintain a balance of money2) it shows your monthly income more often than not, a credit check is used, not a bank statement. |
Who eats the costs during recalls? | The companies that sold it are out of the money. The farmers don't lose out. They sold the animals to the butcher shop. The butcher shop would basically be responsible. In these cases, it's the big food company that is liable because they package the foods and thus are responsible for its safety. I'm not sure if they h... |
Why the desperation for asylum seekers to enter the UK. | Multiple reasons really.1) The history of high immigration to the UK means that they are likely to know people, making it an attractive option. 2) relative freedom of religion and culture.3) free healthcare 4) relative economic and social stabilityHowever, the issue is far more complex. The UK has a high proportion of ... |
What exactly is happening when a plane meets "turbulence" ? | Planes usually fly in smooth airflow region there's wind but it's smooth turbulence is uneven airflow or density It's like swimming in a fast moving river vs in still pool of water ..To put it simply, imagine the plane was a car. Normally, the ride is nice and smooth. But when you hit that patch of rocky, rubbly road y... |
Why is it easier to balance yourself on a fast moving bicycle rather than a slow one? | Rotating objects, like wheels, have a property called angular momentum. One feature of angular momentum is that it is conserved if no external torque is applied to the system. The basic outcome of this property is that spinning objects will resist tilting. This is why gyroscopes stay upright and why bicycles don't fall... |
How quarterbacks can keep track of an NFL offense. | It's their job. How does a chemist keep track of all the different reactions s/he could use to do a synthesis? How does a cook keep track of exactly how hot and long to cook each specific dish? You do it a lot every day and get good at it. Also usually the blocking scheme is called by the center. |
why are there no transparent phones, computers or TV like we see in futuristic movies even though we have the technology? | because it would be awful. you get enough glare from light shining on the front, now imagine how bad it'd be if you add light coming through the back", 'Circuits arnt see though yet and itd be kind of annoying vs just seeing whats on your screen', "Movies use these because they show the actor's faces through the screen... |
Why does sugar cause people to have more energy/become more hyper? | It's an old wives tale. If you have a properly functioning pancreas you shouldn't notice much of a boost from sugar _URL_0_ |
how does this not work? (picture in description) | because the force you are exerting upward derives from within yourself. If you are up in the air, you have nothing to push down against to support yourself. Someone else, who remains standing on the ground, has something to push up against to defy the gravity pulling you down. |
How can two people who are not related have identical features and look closer in appearance than one another's siblings? | Three factors. 1. It's a coincidence.2. There are *lots* of people, so a coincidence is bound to happen sooner or later.3. They may be from the same ethnic group -- maybe even have specific ancestors in common -- so it's not as unlikely as it seems. |
Why does water taste better the colder it is? | That is an entirely conditioned thing actually. In many places, like China, hot water is actually considered more satisfying. |
Why Toaster Strudel frosting packets don't freeze in the freezer? | Food Scientist here: Looked up the ingredients online but could not find the exact ingredients for the icing. However I will give it my best shot. It has too do with the amount of solids that is in the icing . The sugar will bind to the water, and will keep the water from forming very large ice crystals. This is the sa... |
Why does my penis burn when i get soap in it? Also, does this happen to women? | If you get soap into the opening of the urethra it can cause a chemical irritation. It will probably sting quite a bit, but it normally goes away within a few hours or a day at most . This can happen to either sex.Same reason it burns your eyes. Your mucous membranes don't have enough protective oil to keep soap from d... |
Would astronauts be able to synthesize their own water using hydrogen and oxygen gases to cut down on weight? | The amount of H and O required would "weigh" the exact same amount as the water it produced.Can they synthesize water from hydrogen and oxygen? Yes, sure. In fact, if you carry hydrogen and oxygen then you can get a large amount of energy out of combining them--that's actually what the space shuttle's main engines burn... |
Coca-Cola Freestyle: Drink Machine | Think about it like a drink printer. A printer can print any color you can imagine using only four colors: Cyan , Magenta , Yellow, and Black. As you know, I'm sure, you can mix any two primary colors to get just about any color you want. The Coca Cola Freestyle has a bunch of packets with concentrated flavors which ca... |
How can the state of Florida sell 3,778 Black Bear hunting permits and try to control the limit of bears being taken to 325? | Not really. It's a no bait, no dog hunt. Spot and stalk, or ambush, basically. Bears are pretty shy critters so the bold ones, the actual nuisances, should be harvested pretty easily. The bears that aren't conditioned to eat from rubbish bins won't be in much danger, realistically. The way the harvest size will be cont... |
How exactly does the body reproduce blood (say, after giving blood)? | Blood cells have a limited life-span anyway and your body regularly replaces them, as well as all the non-cellular components. In the case of red blood cells, if there is a deficiency due to blood loss, the kidney secretes a hormone into the bloodstream that causes cells in the bone marrow to produce more red blood cel... |
Why do microwaves turn your food as it cooks? | Microwaves, as in the electromagnetic wave have a wavelength of about 5cm. Thus they really only "hit" food in spots about 5cm apart this is why your food can be cold in some spots and hot in others. Your microwave uses a turntable in order for more areas of the food to be hit by the waves.Microwaves heat food by emitt... |
What is a monopole magnet? | Magnets have two poles, typically designated as north and south. If you break a magnet in half, each half will have its own north and south pole. A monopole magnet is a magnet with only one pole, either a north or a south. So far, monopole magnets are merely hypothetical as nobody has been able to create one yet. And t... |
How did Old/Ancient Cartographers Produce Fairly Accurate Maps? | Firstly, most of old maps you see on walls, in posters and so on or created by people who take maps and notes from "real" cartographers and turned them into what we now think of as the "atlas" . Prior to these, cartographers weren't trying to share maps with "every day folk", they were trying to create maps with utilit... |
Representation in US government from the the most local level up to the top | The government isn't like a corporation where the lower levels report to the upper ones. Your city council doesn't report to the state legislature. They handle different issues. You wouldn't contact a US Senator for a problem with garbage pickup, and your mayor wouldn't be able to help you get another lane added to an ... |
How wireless technology was first discovered | This dates back to the 19th century with people such as Faraday, Henry, Ampere, and a few others discovering the link between electricity, magnetism, and the electric and magnetic fields. They discovered things like how two wires with current can push on each other, that a magnet can induce electricity in a coil of wir... |
How does special effects work in movies that were shot on film? | The go-to was called [rotoscoping]. Essentially, artists would draw what they wanted on top of every frame. Take for example starwars. The actors would hold heavy sticks, then post filming they'd add glow and a colored lightsaber on 24 frames for every second of film. It's just as inefficient and time-intensive as you'... |
Why are symptoms of sickness (headache, cough, sore throat, etc.) generally worst when you wake up, then they get better throughout the day? | Aside from u/Internalstandard 's excellent answer, I suspect that the primary reason for this phenomenon is likely just due to our remarkable ability to *stop noticing inconvenient things*.When we first wake up we immediately take stock of our bodies; what's sore, what's not sore, what hurts, what doesn't hurt, what ne... |
Why is Buddhism considered a philosophy and not a religion ? | That is a misconception by people who haven't studied Buddhism. The misconception is based on another misconception i.e. that Buddha claimed there is no god. But that is not what he said. What he said is loosely translated as: If god is all powerful and sees evil but does not prevent it, he is not good. If god sees evi... |
Why does it feel strange walking on an escalator that isn't moving | I don't know why it feels strange for you, but for me the pitch feels weird. Specifically, it's too tall. Give this a read; it's the closest thing I can find to a direct answer of your question. _URL_0_", 'Since escalators are in motion, the steps are larger to allow more surface area for people to step on. It doesn't ... |
I thought I was decent at math. How can the universe be so big? | Imagine lots of tiny bugs on a birthday balloon. They crawl really slow. But blow up the balloon bigger, and as the balloon gets bigger they might move away from each other faster than they can crawl. They aren't really crawling faster, they're just getting more balloon between them. |
Why is an economy based on controlled inflation better than one based on controlled deflation? | Deflation hurts anyone that has debt, while slowing investment. If you buy a house with a fixed rate 30 year mortgage, then as time goes on, the monthly payments become a smaller portion of your total income thanks to inflation. With deflation, those fixed monthly payments grow to become a larger portion of your total ... |
How did derivatives cause the worldwide recession | Derivatives is a very very general term for a financial instrument. You are also assuming derivatives are the sole factor for the worldwide recession, which is false. Nobody alive or dead can explain fully why the recession happened, derivatives is one of factors of many theories of why the recession happened. |
How does clicking a box to confirm you're not a robot stop robots? | The captcha isn't checking that you clicked the box. But how you clicked the box. What was the path of the mouse cursor movement. What was the delay in movement. What was the speed of the movement. What were the initial and ending coordinates Applying heuristics, it can give a confidence level if it matches any known b... |
Why is it that eating can result in drowsiness rather than energy? | A number of reasons, chemicals in the food, amount of food eaten, etc. If you eat a large amount of food it will take energy to break down, and doing physical activity could easily cause you to throw up your food, so your body makes you drowsy and puts you into a "food coma" do you sleep and digest the food without usi... |
Why the US Marketplace makes healthcare plans ridiculously expensive for people who make under $12,000/year, yet extremely cheap for those who make $50,000+/year? | It's more specifically a gap between State and Federal coverage. The subsidy doesn't apply to those who make less than the Federal Poverty Level because another section of the ACA was meant to expand Medicaid in every state, so those individuals would receive that instead. In *National Federation of Independent Busines... |
Why does weather changes causes joint pain for those with joint damage or arthritis? | There's no conclusive research on this. The main idea is when barometric pressure drops soft tissue expands. This puts pressure on joints, causing pain. For someone with preexisting joint issues like arthritis this would feel more noticeable. There's not much to do other than prevent swelling. I've met patients who hav... |
What is conduit and how do I remove it if I get it? | Conduit is one of the many browser hijackers going around. I don't know how one gets it, I 've just had to remove it from several peoples\' machines. Google says it comes as part of another install, but people swear they didn't knowingly install anything. Basically, it's coming from a website and installing without you... |
Why do we wash dishes in hot water? | A big reason is fat - in cold water fat is solid, sticks to your washing up and is very hard to remove. In hot water it liquefies and is easily removed. Commercial dishwashers use boiling water which also disinfects the dishes, hot taps in houses don't get hot enough for that.Water can dissolve more things when hot tha... |
Why i can't sleep without listening to something | Try meditation to get to sleep-something as simple as paying attention to your breathing, and just your breathing, will set you to sleep I'd wager. I'd also wager you go to bed with a lot on your mind, and focusing your mind on, say, the radio or music puts you to sleep because it's focused on one thing, and stopping y... |
When a meteorologist refers to a trough and a ridge what exactly is happening? | Very high in the atmosphere, there are loops of wind called the Jet Streams going around the entire planet west to east. Jet streams dip north and south as they travel, and pull air at the surface along with them to some extent. When they dip south , that's a trough; when they rise north, that's a ridge. Take a look at... |
Why was Pompeii forgotten after it was buried by the eruption of Mt. Vesuvius? | So its the Tuesday following the eruption. You're a travelling olive oil merchant from Solerno who has been living under a rock for a week and you didn't know that Vesuvius erupted and Pompeii is completely buried.As you crest the hill down into Pompeii you survey the devestation. The road just ends in a pile of ash an... |
What is inherited trauma? How does it manifest and how is it explained? | In addition to what U/MrFluffPants said, the psychological stance on the issue is trauma effects behavior, and as such learned behavior of future generations. We are conditioned to be wary of things those around us seem to be wary of, even if we have no idea why. An example would be: *Jerry the happy snail is walking s... |
Is our economy really as bad as Fox news pundits claim? | The US economy is overwhelmingly, not even remotely close, the best economy in the world. I don't know what Hannity is getting into here but it doesn't really matter and you shouldn't care. By pretty much everything economic we know of, the US is doing *Awesome*, and not just *awesome*, like way more awesome than almos... |
Why did The civilizations that preceded the Roman Empire not field organised professional armies as the Romans Did? | It sounds like you have misunderstood the armies in the middle ages. A lot of people were working soldiers. Either as a standing army for a ruler to guard important positions or as mercenaries. These two are not mutually exclusive. The farmer would not suddenly be called into service but would be required to give food ... |
How come when one is frightened or scared they happen to urinate or take a dump? | It's the “fight-or-flight” response. When you're under enough stress, your lizard brain kicks in and your body only knows it has to be as light as it can in case you need to throw hands or GTFO. Easiest way to do that is void the bladder and/or bowels. |
How do computers turn binary into information? | Its easier for humans to read instructions like this where each letter of the alphabet stands in for a different sound. We can easily remember what an "A" or a "B" sounds like. However early computers were stupid as hell. If you wanted to tell it to remember the meaning of a character that would take up extra space at ... |
- Why our days are getting longer? 500 million years ago a day was 20.6 hours, now it's just under 24 hours. | Because of the Moon. Earth rotates once every 24 hours, while Moon orbits Earth once every 27 days or so. Moon causes drag on Earth, so it will accelerate, while Earth will decelerate until both speeds are equal. Similar thing will happen if we had Moon that was orbiting faster then the Earth could rotate. Moon would t... |
How are companies valued at IPO? | Former investment banking analyst hereThere are SO MANY WAYS a company can be valued for an IPO and some of it is so incredibly complicated that I wont go into the full details here but the jist of it is this: A financial model is constructed for the company. Usually this model will try to encapsulate many aspects of t... |
Please ELI5 what gates have to do with scandals. Why is it called xyz-gate? | One of the biggest and most famous scandals in American politics was the [Watergate scandal] in the 1970's, which led to the resignation of President Richard Nixon. It involved a break-in at the Democratic National Headquarters at the Watergate office complex in D.C. and a cover-up by the Nixon administration, and soci... |
What actually happens when we shut a website down with the "Reddit hug of death"? | The server that the website is hosted on is bombarded with too many requests at the same time for that website. A great analogy for this is a mail room. A mail works fine when there aren't that many people sending mail. But when lots of people try to send their mail at the same time, the whole system begins to slow dow... |
How do Pakistan, a relatively poor country has nuclear weapons while rich Middle East nations don't have them yet? | Being rich or not has nothing to do with it. Its whether or not the country prioritizes the research and development. Poor and rich is only relative term.Pakistan has more motivation to have a nuclear program than other countries in the region since India, which Pakistan has had hostile relations with, has a nuclear pr... |
Why can't we use one foot for each pedal when driving? | Well if you drive a manual it's because you don't have three feet. If you drive an automatic it's because people who do that have a tendency to accidentally stomp both when startled, which is really bad for the brakes. |
Why have humans (women) not evolved to where childbirth doesn't cause pain? | That's not how evolution works. Evolution isn't a progress towards what's best. It's just about what's good enough. Women having pain during childbirth works, so that's the way it is. Pain during childbirth is due to 1) Us walking upright and 2) Us having bigger heads. Evolution led to childbirth hurting because those ... |
Your Masters or PhD thesis | Using the processor of a graphics card for mathematical operations instead of the main computer processor. This made the said operations run around 140x faster. |
how do cows gain so much weight eating only grass? | In a day, a cow spends about 6.5 hours eating and drinking all of her food. The cow has four stomachs and undergoes a special digestive process to break down the tough and coarse food it eats. When the cow first eats, it chews the food just enough to swallow it. The unchewed food travels to the first two stomachs, the ... |
Tire pressure in the winter | well, it depends. if you're driving on ice or packed snow, you'd want lower pressure, to let as much tread as possible grip the surface. if you're driving through loose snow, you'd want higher pressure, so the tire has an easier time 'cutting' through the snow to reach the pavement underneath. real answer though, condi... |
How can people have a different laughter from each other/ one person have multiple laughs? | 1) tubas and flutes don't sound alike, why sound the same with different anatomy and neurology? Even twins' speaking voices sound a little different if you know them long enough. 2) Like breathing, it is semi-autonomous. Sometimes you can't help from laughing. Others times you do it deliberately, In the latter you each... |
How did the red lines on the left side of lined paper originate? Why can't we go past it? | Its a margin, and you use it to line up your text on the left side, which makes it easier to read from left to right as English is readFor writing legal notes in the margin. In fact the stripe defines it as "legal paper," though we usually say legal paper is 8.5"x14" now, describing it by size rather than the stripe. _... |
Why are UK fl. oz. on my bottle different than US fl. oz.? | In 1824 the British Parliament was like "How do we define a gallon of something." and everyone was unsure. They could just make a bucket and say it's a gallon but they everyone would need to use the same bucket. So they instead defined the gallon as the volume of 10 pounds of water. They then divided the Gallon into 4... |
Why do people from Iran refer to themselves and "Persian?" | I found this article: _URL_0_ . "Persian" and "Iranian" can be used interchangeably but some people may use "Persian" instead because of political contextPersian is the major ethnic group in Iran. You might hear someone from Iran call themselves Iranian or Kurdish instead of Persian because their ancestry is not Persia... |
What is the current military strength and power of the Ukrainian armed forces, and what are their chances of resisting a full Russian invasion? | Funny enough, this is almost like asking two different questions. Current military strength and power of the Ukrainian armed is nothing compared to Russia; Russia's basically been defined by its military since WWII. But, Their chances of resisting a *full* Russian invasion are almost 100%, since everyone to the left- E... |
Why are property taxes the same or more than the cost of if you were simply renting the home? Seems like it defeats the purpose. Let's use NYC as an example. | Property taxes are merely a crude form of wealth tax, with origins in the time when only wealthy people owned land. The amount of money needed by the city or county is divided by the number of property owners in that area, and then assessed to them in proportion to how valuable their real estate is. Not sure what the r... |
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