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Why are salt water fish so much prettier than fresh water fish? | From what I've read here people are on track but not quite getting it. The responder talking about the colors of the environment is accurate for reef fish, but that doesn't explain open water. Like Mahi. The reason that a lot of the fish are so vibrantly colored is because they are schooling fish. They are bright color... |
How do dollar stores provide the same food as retailers for cheaper | They purchase overstock, discontinued items, defective products, and things like that for a massive discount. Basically factories were going to throw away these products because they couldn't sell them to anyone else. Lays probably just had some overstock. Nothing wrong with the chips, they're just as safe. It's also p... |
When speaking about non-Newtonian fluids, what is shear-thinning and shear-thickening? | Imagine having two plates with a fluid between them. When you move the plates there's a resistance put up by the fluid; less than if there were nothing lubricating the plates, most likely, but still some resistance. In a Newtonian fluid the resistance scales linearly with speed: move twice as fast and you get twice the... |
What causes light bulbs to spontaneously explode? | Are you in an old house? Slight power surge without proper surge detectors through an old lightbulb can product a lot of heat and make the lightbulb pop. I’d consider bringing in an electrician to look at your house, cause that could be dangerous', "The light bulb is, somewhat simplified, a wolfram wire in a controlled... |
Why did several of my beers that I left out in my Jeep on a below freezing night depressurize, and why did they regain pressure after warming up a little? | Gas dissolves better in liquid at low temperature so the CO2 in the bottle went into the beer. When temperature goes up the gas leaves the liquid and back into the air space. This is the same reason a coke goes flat sooner if you keep it outside and thats why they tell you to serve it chilled. |
Work, Power, and Energy (physics) and their differences | Work - When a **force** moves an **object**, **energy is transferred** and **work is done**. Work is measured in Joules. Whenever something moves, something else is providing some sort of **effort** to move it. The thing providing the effort needs some sort of **energy** . It then does work by moving the object, and in... |
Why are Ads such big monies? Who falls for this crap? | It puts the brand/product in your head. So if you find yourself thinking, "what kind of chips should I buy?", then lots of people's thoughts will go directly to Doritos, especially if they just saw a memorable Doritos commercial.Yes, and you are one of these dumb people. It's inescapable. Everything you own has a marke... |
Where do electrons get their energy to spin from, and how does such continuous motion not violate the law first law of thermodynamics? | Electron spin isn't actual, physical spinning. It's just a quantum property that behaves in a way that can be mathematically modeled as spinning. Further, things that are spinning don't need energy to continue spinning as long as there's no friction slowing them down. That's why planets and stars just keep on spinning. |
Why, in old black and white movies, does the picture brighten slightly a second before a fade transition takes place? | You'll notice the same effect on older color movies as well. Many "transitions" between shots were accomplished optically, requiring an additional generation or copy of the portion of film involved. The bit of film beginning just prior to and the bit of film ending just after the transition were processed by an optical... |
Why do stray cats bolt away like lightning when they see a human approaching from 10 feet away, yet show no fear when a 2 ton car barrels toward them? | Cats primarily rely on their sense of smell. But there's more to your question. How long does a cat have to perceive a human walking towards them at 2 miles an hour? How long a car traveling at 35? |
How HSBC corporate executives were not charged with crimes they committed while running a company. | Essentially, it was because the US Government thought that if they imprisoned all the executives responsible, investor/depositor faith in the bank would drop and the bank would collapse. Banks collapsing does lots of damage to the economy, and can often cause a chain reaction of financial collapses like the GFC. The go... |
How do animals seem to figure out if something is edible just by looking at it? | They learn through trial and error what's good to eat and what's not. They also learn by watching other members of their own species eating and then eating the same things they do. For your specific example, they've long learned to associate people throwing things at them with getting food, so they get excited when the... |
Differences in AM & FM programming. | Mainly, it's because AM has much poorer sound quality. If you want to broadcast music, FM is better. There are other reasons too. For example, AM signals travel much further, so that's good if you want to broadcast to an audience over a large geographical area. |
Can we fill space with air? | With an infinite amount of oxygen and an infinite amount of time, no. Alas space is expanding faster than your could fill it with a constant flowShort answer is yes. But we don't have that much "air" of course. If we create a small room that is in a vacuum we could fill that up with the air outside. Same with outer spa... |
Why people spend too much money on funerals? | People may spend a lot as a tribute to the person that has died. They may feel that they are obliged to spend a considerable amount or that they will feel bad afterwards. Or they may feel guilty already that they didn't treat the person well in life, so now they are compensating. It's also something you're only ever go... |
Why U.S. inmates are provided health care paid for by taxpayers but it's not expanded to the public? | The average U.S. inmate costs around $35,000 per year to house in prison. Their health care is provided because, without it, if an inmate gets sick, they'd die a slow, painful death in most cases or suffer from extremely horrifying mental disorders such as schizophrenia without any treatment because they wouldn't be ab... |
Why do some people believe they don't need to pay income tax? | Because they don't want to pay income tax. Confirmation Bias takes them the rest of the way. [Check out this wikipedia page for a list of the silly arguments that are used].There's a subset of the far-right antigovernment militia movement called the "Sovereign Citizen" movement who believe lots of wacky things about th... |
Brainfreezes, and other types of pain from consuming cold products | The pain comes, not from the cold - as many think - but from the spasms of the muscles fighting to open the blood vessels again once the cold reflex causes them to constrict. |
Why does my skin buzz when I touch my computer. | Is the laptop connected to a power source? You may be receiving a mild electric shock--which could become dangerous with better conductivity, such as when your skin is damp or you touch something that grounds you. |
If an oven and bulb are connected in parallel, why is that the oven get more current? | If it had higher resistance it would get less current. It has *lower* resistance so it gets more currentIf it has a higher current and it is connected in parallell to the same circuit it has to have lower resistance. What figure have you looked at to determine that is not the case? That is for pure restive loads can be... |
What are diabetic socks and why are they needed? | Diabetic socks tend to not have much of an elastic around the top, so they do not constrict blood flow. Diabetics are more susceptible to foot ulcers, which is partially caused by pooling of blood in the foot. The lack of elastic allows blood to move more freely and reduces the chance of foot ulcers. |
What would happen if the US cut funding to Israel in the space of a year. (In regards to what happens in the middle East) | It's hard to get into hypotheticals like that, but it's honestly hard to imagine any of Israel's neighbors attacking: Egypt is run by a military dictatorship that is actively putting Israel's interests above those of the Palestinians, and they have a peace treaty; Jordan likewise has a peace treaty and good relations w... |
Why do I/we dream after waking up and going back to sleep? | You only remember dreams when you're waking up or not yet fully asleep. So, when you're disturbed you're just not sleeping as well and therefore frequently teeter on the edge of sleep - the times when you remember your dreams. |
Why do people's ears still pop on a plane even though the cabin is pressurized? | It's not fully pressurized. More pressure takes more power which costs money. Less pressure makes people sleepy, which also has advantages to the airlines. Airliners are typically pressurized to about the equivalent of being on an 8000-foot mountain.The cabin is not pressurized to the atmospheric pressure at sea level,... |
Why doesn't whole wheat bread get stuck to the top of my mouth, but white does? | The bran and other things in whole wear bread make the gluten weaker. Gluten is a stringy protein that hold the bread together, but bran and whole grain pieces cut through the strands. Gluten also gets sticky when it's warm, so I suspect the white bread is sticky because of the heat on the roof of your mouth.White brea... |
Why is Pi used so much in mathematical formulas? | As noted, pi is the transcendental component of the radius:circumference ratio. This is important because the circle is a model for *all* periodicity. Phenomenon can be roughly divided as repeating or non-repeating. Another way of saying this is "involves Pi somehow" and "doesn't involve Pi somehow".Circles in nature a... |
Why couldn't Bill Gates or any billionaire fix endangered species by buying land in Africa? | 1) The land probably isn't for sale, even corrupt African dictators don't like foreign powers buying up vast tracts of their land. 2) The endangered animals won't stay on the land. Most large mammals roam huge territories, eventually they'll wander off of your preserve. 3) Poachers. The local governments in many of the... |
Why do popular reddit posts tend to cap out around 4k up votes when there is such a big amount of people using reddit? | The longer a post exists, the less worth every upvote has on the post. In this way Reddit can bring in new content. There are issues with the system that have been argued, I think Reddit is keeping the current system in place because it has already been coded, works good enough, less work. So for a conceptual example, ... |
How do we grow seedless fruit if there are no seeds? | Seedless fruits are *triploid* organisms. That is, they have *three complete sets* of chromosomes, rather than the normal two. Plants are very tolerant of having additional complete sets of chromosomes, the plant usually just grows bigger. Many plants we grow for food have four or even six complete sets. With an odd nu... |
Why have split screen multiplier video games disappeared for the most part? | Online multiplayer. It's not worth development resources to put in a feature that will get very little use. |
why lotteries pay you over time instead of immediately, and what happens to the money if you die | Lotteries pay in annuities, or investments designed to hold onto your money and give you regular payments . These are good for retirement accounts or large payouts like the lottery. It is good for the lottery because you get a steady flow of money and the state doesn't have to come up with all the money at once. What h... |
after criminals "flee to Mexico" to avoid US officials how do they make money to live? | Haha, just like any other place .odd jobs and what not. When Mexicans flee mexico how do they make money here . The answer to that question is the answer to your question |
How can the distance of a light year be consistent? | This is actually a good question. And the problem isn't with just "light years". You can apply that argument to any distance. The answer is that part of the relativistic effects along with time dilation is length contraction. That is, the closer you are to the speed of light, the more distances are contracted for you. ... |
How exactly do Compasses work? | The compass has a magnet in it that will orient itself to align with the Earth's magnetic field. The Earth's magnetic poles are near the north and south poles, so compasses will point north-ish from most locations on Earth", 'Take two magnets with both their North end labelled. You probably know that if you push them t... |
The Public Domain. How was Ray Comfort allowed to add a creationist introduction to Charles Darwin's existing work, "The Origin Of Species" (1859)? | Authors have exclusive copyright of their original works for a certain period of time. After that, the work enters the public domain and becomes free to use and reproduce. Because *On the Origin of Species* is in the public domain, anyone is free to publish it; you can even read the entire thing on the internet. Ray Co... |
How did Sheep (Especially lambs) become the most common animal to be found or themed at nurseries, baby products, and commonly associated with early childhood? | Sheep are famously docile and helpless, requiring help to keep them safe. Lambs, even more so. This remind us of helpless babiesThe symbolic connection between the lamb and children in Western culture goes at least as far back as the writing of the Christian Bible. The followers of God and Jesus are likened to sheep an... |
Why do most rear car windows roll down only partially? | In most sedans the shape of the door prevents the window from going down. The rear wheels take up that space. |
Where did the Avogadro's number idea come from? And how come a 18th centruy scientist came up with this precise number? | First off: It's named after Avogadro, but Avogadro didn't actually provide an number. He just proposed the idea that the volume and number of atoms in a gas are proportional, all other things are constant. It was first calculated in 1910 when Robert Millikan, and American Physicist, managed to determine the charge on a... |
Why does body hair stop growing after a certain length, yet head hair doesn't? | Hair all over your body doesn't "know" how long it is. All your hair just goes through cycles where it falls out randomly. The cycles vary but all body hair just falls out. The average length is what's left when the cycle is at mostly a certain stage for most of the hair there. Your head-hair almost never goes through ... |
Why are printers always f***ing up? | Yeah it's the worst. I see it as the most major part of a PC setup that has multiple large moving parts and consumables . They are typically infrequently used too which means ink dries etc. I know that doesn't answer the technical side of it, but that's what I think makes them unique and problematic. |
If a petition's requirements are fulfilled can it be overruled? | A petition isn't a law. A petition is an idea for a change that is presented to whoever is in charge, and the signatures are essentially upvotes which indicate agreement with the idea. A single voter writing to a politician or city official saying, "stoplights should be changed to 15 seconds of red light and green" wil... |
If you go to sleep hungry, why do you wake up significantly less hungry than you were before? | The amount of sugar in your blood stream has a big impact on how hungry you are. When you eat something with sugar your blood sugar immediately rises. As time passes your body uses that sugar for energy and your blood sugar levels get low. This causes you to feel hungry, however if you wait long enough your liver will ... |
When you jump in a plane why do you stay in the same spot inside the plane and not the same spot in the air? | Because you have the same forward momentum, as does all the air in the enclosed space you are in. Even if you were outside holding on to the plane and then let go and jumped you would still not stay "in the same spot in the air". You would still have forward momentum, except the plane would rush ahead of you as you wou... |
Why is there so much mercury in certain types of fish, and why doesn't this high volume of mercury in them hurt them at all/as much as it hurts us? | Mercury is a substance that does not easily leave living creatures, but instead accumulates. All fish absorb mercury from the environment around them. Larger fish, however, eat a whole lot of smaller fish that have absorbed mercury and thus the larger fish absorbs the mercury from those smaller fish. Also, larger fish ... |
The difference between charged as a "pedophile" and a "predator", and why these are separate charges. | A pedophile is technically someone who like prepubescent kids. A 17 year old girl is physically fully a woman and having sexual desires for her is no different than having sexual desires for an 18 year old. However, we have laws to protect her from older men because emotionally she is not fully developed and we do not ... |
Why do a lot of pirated movies only come with hardcoded subtitles (e.g., Korean)? | Those are usually very early releases. They're sourced from korean hotels that have a deal with the studios to show the movies early on their pay per view. The people who get them record the movie while it plays, with some kind of dvr or appropriate hardware and software on their computer. Its hardcoded as you said, ju... |
Why do car wheels look like they are spinning backwards when the car starts to speed up faster? | There are two situations where you 'd see this that each have different explanations. If you're seeing this in a recording, the effect is easily explained due to the camera's frame rate. A video camera captures images at a steady rate, so if the wheel moves fast enough relative to the frame rate, it can look like it's ... |
What is the difference between Apathy and Stoicism? | Apathy is not caring about anything. Stoicism is accepting what has happened and not letting it affect you emotionallyApathy is just not giving a fuck. Stoicism is giving a fuck, just not enough of one to show that you give said fuckStoicism is not showing emotions. Apathy is actually not caring. |
How do soda bottles expand and build pressure when shaken, even though they are in sealed containers? | The dissolved gas is more compact when within the liquid but can be coerced into coming out when agitated. This raises the pressure temporarily, but if left alone the gas will dissolve again and the pressure decrease. |
Why does one nostril get more stuffed than the other when you're sick? | Its actually like that all the time. Its simply more noticeable when you are sick. If you plug each nostril individually and breathe you will notice one is more closed. This is done to aid with smelling. Some scents are quickly dissipated so your unclogged nose can pick them up quickly. The clogged side picks up more s... |
What are the short and long term effects of the re-hyped 8.0-9.2 earthquake that will likely hit the Pacific Northwest the next 50 years? | I'm no expert so if someone more qualified would like to add to this, by all means. One of the short term effects of this earthquake is very shaky ground.Read this. A lot of good info without the alarmist BS. _URL_0_ |
How can the USS Fitzgerald hit another huge vessel? | There will no doubt be an investigation to figure out what exactly happened. Like most similar incidents it will probably end up with blame for many people to go around and with the knowledge that lots of different things went wrong at once. Keep in mind that while these ships especially the container ship are really b... |
How is a wind turbine able to spin with minimal wind given its enormous size/weight? | Due to the marvels of engineering. The wind tourbine simply has the ideal proportions in order for it to spin, even in gentle breeze. It simply covers the maximum area based on it's size. Now it might look like it spins slowly, but in reality it generates enourmous ammounts of electricity, simply because of it's size.B... |
Why are amphetamines prescribed to help lower the symptoms of ADD/ADHD? | > It doesn't make any sense why you would give someone amphetamines to help the symptoms of hyper behavior and difficulty concentrating. I kind of see how an amphetamine MIGHT help you concentrate due to the fact that your brain is more stimulated In ELI5 terms: Stimulants are drugs that make you feel more stimulated. ... |
Why do I yawn when I have motion sickness? | your brain thinks something is wrong and tries to flood your bloodstream with oxygen to relieve itself.When I'm coming up on psychedelic drugs I find myself yawning too, and I am certainly not tired. |
Why our bodies will reject foreign objects like new organs or splinters, but breast implants are seemingly unaffected? | Medical implants, like pacemakers or breast implants, are made of specially selected materials that are not biologically active -- silicone and titanium are two common materials, as the body barely acknowledges their existence, showing little chemical or biological reaction compared to other materials [in most individu... |
Why the task manager does not show GPU? | Gpus are controlled by their respective drivers. The driver's are proprietary software that's developed by the card manufacturers. As such Windows out of the box has no real way to monitor the gpu properly. Microsoft also isn't responsible for the development of those drivers so it would be troublesome for them to be i... |
why did the beanie babies market crash? Why did it happen so suddenly? | The simplest explanation I can give is that anything that is marketed to be "collectable" is never valuable. Beanie babies and comic books in the 90's and early 2000's are good examples of this. Both had massive amounts of "collectable material" and both had many special sales and short runs of product to entice people... |
Why does hot water come out white/cloudy from the tap but when I boil cold water it is transparent? | The cloudy appearance is small bubbles of gas. Sometimes this is air that gets into the water system. It becomes dissolved in the water, and evolves into small bubbles of gas. Other times it is caused by chemical reactions within your piping, again creating gas within the pipes. This can be a sign of corrosion within y... |
what are "butterflies in my stomach?" | When you are nervous, you body goes into 'fight or flight' mode, and basically prepares the body to either do a runner or smack someone. It does this by diverting the blood in your system to your arms and legs. The butterflies you feel is just the blood being diverted away from the stomach, together with the high level... |
When I watch something on TV while Facetime-ing with someone who is watching the same thing, why am I a couple of seconds ahead of them? | A video stream over the Internet is broken up into millions of packets which are routed to you. Sometimes a packet gets dropped along the way. Each packet is such a small part of the stream that you won't notice a few missing. If enough packets get dropped then you will notice, the video will hang for a bit while it wa... |
Question about energy and space. | We do not orbit around the center of the universe. The universe has no center. I think you might have meant the galaxy? If thats the case than it goes like this. The galaxy formed out of a giant cloud of gas. Gravity slowly started pulling it together. It started speeding up until all of the gas in the cloud was fallin... |
How does a tree root generate enough force/pressure to crack a pipe? | By applying the pressure over a long stretch of time. The root keeps growing, expanding, and gaining more and more mass. The damage the root takes by pressing against the pipe is healed and becomes stronger. The pipe on the other hand just slowly wears out over the years. |
Why do humans assume that extraterrestial life will be carbon based? | We don't. We simply don't have any clue what we would be looking for if it was not Carbon based, so we stick to what we know. |
What's the difference between a Priest, a Father, a Reverend, and a Pastor? | Within Christianity: **A pastor** is usually any ordained person in a leadership position in a local congregation. So, for example, the person administering sacraments and delivering sermons in your local United Church of Christ church is probably a pastor. **A priest** is an ordained person in the Catholic, Orthodox, ... |
Is PTSD a relatively new thing, or was it relatively common in ancient societies? | > The Odyssey invites us to ask: can soldiers ever, truly, return home? The Odyssey says: you thought it was tough getting through the war. Now, see if you can get through the *nostos* – the homecoming. [The Odyssey: a soldier's road home] |
Are our cravings for certain foods random, or does our brain know that the desired food contains specific nutrients that we are in need of? | the memory areas of your brain is actually responsible for your cravings! these memory areas will associate a certain type of food with a "reward" . BUT, on the whole flip side of things back when humans were first beginning to be humans, we learned to eat a lot and our bodies learned to store calories. basically, from... |
I was chewing gum for a really long time and it melted into a liquid. Do I have magic saliva? Someone explain this on a molecular/chemical level? | Depends on the gum. The brands have different secret "gum bases" that can be all sorts of stuff from plant resin to rubber, latex, or wax. Every time you bite, you apply pressure and heat to whatever it is. Gum makers want you to chew more, so they have a balance between good enough that you'll buy more and gets crappy... |
what determines gas prices? Why are some gas prices higher at different stores? | Gas prices can be affected by many factors, such as the cost of oil, amount of gas at the store, or how far it needed to be transported. Gas near the gulf is cheaper than up north due to the offshore platforms and the amount of tradeships coming to each port. As oil prices go up, so does gasAlso a store may have more g... |
Why does it still feel like I'm wearing my watch on my arm when I haven't worn it for days? | Hmm. I get the opposite feeling. If I don't have it on I feel like I'm missing something or a little but naked. Unless I have deliberately taken it off. |
Why I should have more than one credit card (assuming I intend to meet all my payments) | My card is American Express. Some places don't take American Express and in those cases I cooly exclaim that is no problem and whip out my Visa!", 'It increases the amount of available funds that you have, lowering your debt to available funds ratio, which increases your credit score. |
Why do scientists believe wormholes exist? What evidence is there of it? | For the most part, they don't. There are no mainstream scientific theories that purport the existence of wormholes. There are a lot of people, including some scientists, who *want* wormholes to exist, because they would give us the possibility of travelling interstellar distances, and some have come up with speculative... |
Why do you see different companies locomotives on a particular companies track? Ex. A BNSF loco on a CSX track? | The companies all pay each other for use of tracks. It's much more effective financially for all parties than having a balkanized track network. It's also probably legally required, but I'm not 100% sure of that. |
If I died on an alien planet that was possibly habitable but was void of life, would my corpse spark life? | You'll get better answers over in /r/asksciencediscussion. The answer is it depends a bit on the planet. Most planets other than Earth are simply not very good places for life; bacteria would freeze, burn, or be irradiated. However, if this planet is even relatively friendly to life but currently life-free then your mi... |
Why I am better at video games when I'm drunk. | Several skills show signs of improvement with a certain amount of intoxication . Specifically, social skills can be improved, as can foreign language skills. Intoxication can make you uninhibited , and you relax a bit and rely more on instinct. Skills which are hindered by stress or being self conscious would thus stan... |
Can someone explain why Murdoch is a bad person? | He owns Fox, Fox canceled Firefly. Seriously though, newspapers that he owns hacked into the voice mail of a girl that was missing and **deleted** messages because her inbox was full and they wanted more messages for more gossip. They could have deleted clues as to what happened to her so they could get more gossip to ... |
why does a horse have to be put down when they break a leg? Do they not heal well? | horses are built kind of terribly on the front end. they not only have very little muscle on them, they also carry 70 percent of their body weight on just the front two alone. when they break a leg it’s incredibly difficult to keep them suspended or in a position to keep weight off until it heals, and 9 times out of te... |
what pushes our wisdom teeth to come out so late? | The wisdom teeth were useful when people chewed on hard food and lost their teeth. They don't come out too soon or else they would disrupt the other teeth from growing correctly. And they don't come out too late, because you might be dead. Or you would get used to your teeth. |
EIL5: How submarines function | When you want to lower the sub tanks are filled with the surrounding water causing it to sink to raise it you empty those tanks. I'm not sure how deep they can go but below a certain point the sub would be crushed but as long as the hull is intact the crew should be okay. If I have made any errors corrections would be ... |
Why do new age technologies (e.g. Xbox and PS3) break so easily when my Nintendo Game Boy from 1992 still works? | You know those things that break on your Xbox and Playstation? Your Gameboy didn't have any. Specifically, reading data from a cartridge requires no moving parts, only electrical signals. Reading from a CD and writing to a hard drive means many many very tiny moving parts that break a lot. |
If an ice cube is taken out of a freezer at 32°F (0°C) and placed in at environment regulated at 33°F, will it melt? If so, how long would it take? | Naively speaking, yes. There are some factors that could prevent it from melting , but generally yes it would melt. Melting requires a certain amount of energy called the enthalpy of fusion, more than just the energy required to raise the temperature. Sitting in a 33 degree environment, the ice cube would gradually acq... |
When you buy stock in a company, what happens to your money? | no no no good question though, but not at all like that. when a company 'goes public', this means lists its self on a stock exchange - people buy the initial stocks offered from the company listing. this only happens the once - so the company gets a cash injection of sorts at listing time. the company always keeps a ve... |
Why does Human Resources try to prevent employees from jumping grade levels / pay scales internally? | HR exists to help the company, not the employees. Preventing people from getting promotions and raises helps keep payroll costs down, increasing company profits. |
Why does chicken and pork have dark and white meat but not beef? | Pork only has one type of meat. It is only birds that have the two types of meat and it is the different types of muscle that they have for walking and for flying. |
How can an animal eat its own kind with no side effects but human cannibalism causes brain damage? | It isn't the human flesh that causes brain damage, it is the risk of parasites/prions in the human flesh. Thoroughly cooked human flesh won't hurt you, but if it is under cooked or you eat infected brain matter then you are at risk. Generally you only find cannibalism in less developed areas and so the risk is greater. |
Aside from the obvious social stigma of eating another person, is there any biological/chemical reason that we can't? | Yes! There are some types of diseases called “prion diseases” that are a bit weird because their germs don't reproduce using DNA or RNA, they're all protein. A lot of them are easy to catch from cannibalism, including [kuru] which was discovered that way, and [variant CJD], which you can also get from eating cows with ... |
How the American jury duty works | You receive a letter informing you that you have Jury Duty, and the date or dates you are required to report to court. On that/those date/s you report to the courthouse and sign in. You sit in a room with other people called up until you are called in for selection. In selection the attorneys decide if they feel you ca... |
Please explain to me what is going on with youtube and why everyone is so angry | This is probably more in line with /r/outoftheloop. But basically, YouTube is using bots/scripts/and manually reviewing videos regarding terms of agreement and censoring and/or not paying content creators ad revenue on videos that are deemed to be out of compliance or not friendly towards their advertisers. Sometimes i... |
How can I save my game progress sometimes when my Gameboy cartridge's internal battery has run dry? | I had the same issue. The internal battery needs replaced. They're very cheap, but you have to be sure you get the right one. Use Google to double check. You just unscrew the back cover, take out the old battery and put in the new one. Make sure you have a solid connection on top and bottom, replace the cover, and done... |
How do we know that the speed of light is "universal speed limit"? | According to Einstein, an object's inertia increases as it's speed increases. So the faster something goes, the more energy is required to accelerate it. Turns out, no matter how close you get to c, you end up needing an infinite amount of energy to accelerate the final bit to c. [Veritasium] has a wonderful video expl... |
Is there a strategic or economic reason as for why most supermarket store brand packaging is less attractive looking or aesthetically pleasing than that of name brand products? | It's not about the money. It is a specific strategy used to contrast a value brand vs one where it looks like you're paying for the frills of pretty packaging. Lots of market research have transformed this into the defacto standard for a value brand. Make it look cheaper, people will think of it cheaper, and you'll gen... |
What does "3rd cousin, twice removed" means? What's a 3rd cousin? How was he removed twice? | Your first cousin has the same grandparents as you, but not the same parents, right? Go back another generation, with your great-grandparents. Someone who also has the same great-grandparents, but not the same grandparents, is your second cousin. Go back another step to your great-great-grandparents, and you get your t... |
why does the mint sell "$20" silver coins for such large sums? | Non-circulating legal tender coins are never intended to circulate as cash money but they include a denomination as a fail-safe of sorts so that should the world economy collapse and silver becomes worth less than $5.00 per ounce then at least this item's value is backed by a treasury for $20.00. Circulating coins used... |
Do other creatures have a different perception of time to humans | Scientists can measure how fast light has to flicker in order for an animal to perceive it as continuous. They have found smaller animals continue to perceive the flicker at speeds that larger animals can't. Further info [here.] If you think about it, the nerves from the eye to the brain of a larger animal are much lon... |
the link between magnetism and electricity. | They're different manifestations of the same force. You can generate a magnetic field using electricity, and you can induce an electric current using magnets. |
Why does one person singing out of tune sound like ass, but 50,000 people singing out of tune sounds amazing? | Because they all are randomly out of tune, but just slightly, so they add up around the proper notes. On average you get a sound that is more intense around the right notes and their harmonics , and the out of tune sounds just becomes a bunch of overtones making the sound a richer and more complex timbre. [See this old... |
Agenda 21 (A United Nations
initiative) | In 1992, one of the agencies of the United Nations held a conference in Brazil about how we could make the 21st century more sustainable. They had the ultimate goal of figuring out how the world could survive in a sustainable way. They have had a few followup conferences since then to see how things are going and for p... |
How do they make 3D movies? Why do we have to wear glasses? What's their role? | Its kind of like 2 films in one when you see it with no glasses it looks blurry because there are 2 images shown slightly off from one another, each lens block one of the images so together it plays a trick on your mind having perceived depth in the image', "> How do they make 3D movies? One of two ways, either they fi... |
What people mean when they say a car has lb-ft of torque. | Torque is a measure of twisting force. If I have a wrench that's a foot long and use 10 lbs of force at the end, I'm applying 10 ft lbs of torque. If the wrench is 3 feet long I'm applying 30 ft lbs of torque. It's the measure of the peak twisting force that can be applied by the engine. This is different from power, u... |
When I take a drink of water and it "goes down the wrong tube" and I choke, where did it go? What really happened? | After your mouth there are two routes particles can go, down your throat and into your stomach, or into your lungs. Which path is taken is controlled by the epiglottis When you swallow your epiglottis opens which allows for the food to go down your throat. In your case, you probably drank water so fast that it didn't g... |
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