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What is happening on a cellular level that causes insulin resistance? | There are receptors on each cell that are responsible for pulling insulin into the cell from the blood. Those receptors stop working or work inefficiently which causes insulin resistance. When the cell is exposed to lots of sugar, all the time, it becomes less sensitive and less efficient at moving insulin into the cel... |
Why is it generally harder to sleep when "trying"? | You're right in saying that overthinking and anxiety interfere with falling asleep. When you "try" to sleep, are you also worrying in the back of your mind that it won't work or that it will be harder to sleep, as you stated? This sounds like anxiety, which could explain why "trying" to sleep keeps you from actually sl... |
Why can't the United Nations overthrow North Korean's dictatorship and rehabilitate the ~25 million people with government funds? | To start, the UN has no authority to do that. the only binding resolutions that come from the UN are from the Security Council, of which China is a permanent member with veto authority. Since China doesn't want a failed state on its border, they will veto any action to intervene. Second, who's going to lead it? The UN ... |
Why a Catholic priest would find molesting a child somehow less offensive to the church than intercourse with a woman. What exactly is the logic here? | The whole "pedophile priest" thing isn't really about the Catholic faith. It's more to do with the sickest of pedophiles and their ways of attracting young boys. Really sick pedophiles like to get involved with things like churches, little league sports, and the Boy Scouts because it puts them around young boys and mak... |
Why do rings make your skin green? | Rings generally do this because because of a chemical reaction between the metal on the ring, and substances on your hands . The reason it happens with some rings and not others is due to the type of metal the ring is made from/plated in. Silver is very common in rings, and readily oxidizes when it comes into contact w... |
Why is blue such a prominent colour in Italian sports kits when there is no blue on the flag? | As far as I know it was because it was the colour used to represent the royal family and the colour in the coat of arms.Blue is the colour of Savoia, which was the ruling family in Italy from 1861 until 1946. During that time, the Italian flag always had Savoia's coat of arms on it. |
Why does food taste different when sick? | The taste of a lot of foods is influenced to various degrees by smell. So if your nose is clogged from being ill, your food will taste different. |
Why can't I curl my pinkie finger (little finger) without curling my ring finger too? | Mostly because you're used to it. If you trained on bending your pinky without bending your ring finger, eventually, you'd be able to do it. |
how come when I (a male) shave a portion of my legs, it becomes irritated when a female shaves their legs it's smooth and there is no irritation? | You might be using a dull razor or not enough lubrication . Women can get irritation from shaving. Have you ever seen a woman shave her legs? If not then how do you know they don't get irritation? |
How do anti-shoplifting towers at the entrance of stores work? | What you're referring to is what's called an RF system, short for Radio Frequency. Things that the store want to protect will contain a small disposable electronic device called an RF tag that will activate when it gets in range of a radio signal at a specific frequency. This frequency is produced by either one of the ... |
Why do some companies put coupons on their products that give the customer say for example an automatic $2 off? Why not make the price $2 cheaper? | Finding a coupon for a discount makes you feel like you're getting a deal. If the price were simply lower, you wouldn't notice the difference. Consumers are more likely to spend money when they know they are saving money. |
When Yellowstone is called a supervolcano, what do they mean? | > What part of Yellowstone is the acutal supervolcano? [Nearly all of it] Yellowstone is a gigantic caldera. That's when a bubble of magma forms under the surface of the earth. It's too wide to actually form a volcano and instead forms a [peak around the edges] It's about 1,500 square miles of land. There's no way to t... |
Why don't bugs bleed red when they explode on my windshield? | Bugs don't have blood. Bugs have hemolymph. Hemolymph serves as both blood and the other fluid that surrounds cells in our bodies. The color difference comes from the molecule that binds to oxygen. Blood contains hemoglobin, an iron-based protein that binds to oxygen. Hemolymph contains hemocyanin, which is copper-base... |
Why doesn't the US update their paper money to a more secure format? | > Since the superdollars were first detected about a decade ago, the regime has been pocketing an estimated $15 million to $25 million a year from them. That sounds like a lot of money, but compared to the $1 trillion in cash circulating in the great ocean of commerce, a few hundred million is chump change. Although co... |
Why is it that I can hold my breath for like 30-45 seconds in a pool but in the shower I can't last five seconds while washing my face beforebi have to gasp for breath? | This is likely related to something called the [mammalian diving reflex]. When cold water contacts your face, your heart rate immediately slows by 10-25%, and the blood vessels to your extremities begin to close off. This reduces the oxygen being consumed by your body, and leaves more available for your vital organs an... |
If airplane cabins are airtight and pressurized, why do my ears pop when the airplane ascends/descends? | The cabin is not perfectly airtight, it has vents. As the plane climbs, the pressure is allowed to fall naturally until around 8,000 ft after which air is forced in to keep the pressure up at the 8,000 ft equivalent. There's always fresh air coming in, it's not fully recirculated : if the plane was airtight, we'd run o... |
Why do schools adopt a zero-tolerance policy and what do these policies generally dictate? | Zero tolerance policies are there for the convenience of dishing out discipline & avoiding complaints about unequal punishment being dealt out. For example, a zero tolerance policy about fighting means that when you break up a fight, both people are automatically guilty and punished. The teacher doesn't have to figure ... |
If dogs and other animals do not have to brush their teeth daily, why do humans? | Hi, first, animals don't eat candie, they don't drink cofee, don't smoke, And they only live a few years while we can live up to 100 years old. Sorry for my english ;) |
How are restaurants able to keep soda carbonated and ready to serve? | They don't. Inside the soda machine are containers of syrup and a tank of compressed CO2. The two are mixed together at the time the drink is dispensed. On a small/home scale, you can look at a SodaStream system to see how it works.There are tanks of CO2 that are kept with the syrup for the sodas. When you order the so... |
Why is it that sitcoms and other television shows can show people abusing alcohol, but advertisements can not show people drinking? | Portraying alcohol abuse as normal in entertainment is not obviously less harmful than doing so in advertisements, but advertisements are not as strongly protected as noncommercial speech under the current court's interpretation of the First Amendment. |
Today Earth is closer to the sun than any other time in it's orbit. Why are we not more significantly affected by this? | At its closest the Earth is about 147 million km from the Sun. At the furthest 152 million km from the Sun. That's barely anything. |
Why does AIDS keep getting cured like once a week? | There's lots of things that may kill/destroy a virus. The trick is finding something that doesn't also kill/destroy *you*. |
If there was nothing, how was there a "Big Bang"? | Lots of theories out there, but the simplest and most correct answer is that no one has a clue what may or may not have existed before the big bangIt's not that there was "nothing", it's that it's impossible to determine what exists outside our universe. Sometimes people say there was nothing because it's as good an an... |
How we measure the measurements themselves | First keep in mind that units are arbitrary - they don't have any impact on the results of experiments. Units are just a way to put a number to "that far" or "this long" or "this much." With that being said, units: -The second is defined by to be 1/the frequency of the light emitted by a particular process in cesium-13... |
"No approved therapeutic claims" on ads. | Their claim hasn't been verified in any scientific way. If I gave 10000 people a sugar pill and 1000 of them lost weight I could legally claim that the pill helps with weight loss. It wouldn't make the claim true, and the results might not be repeated in a larger sample population. The disclaimer would keep people from... |
Why is the 'highest quality' of audio cables gold plated when silver is a more conductive material? | Gold is more corrosion-resistant. Silver is very quick to tarnish, particularly if people touch itAh I can actually sorta answer this. The reason behind that is because gold is a very stable element, and as such does not degrade easily. Silver on the other hand tarnishes quickly over time, but gold will keep its struct... |
What changes (if any) occur to the circulatory system when someone becomes an amputee? | At first, your blood pressure would increase, as the heart is working just was hard to push less blood a shorter distance. But your circulatory system has a feedback system that monitors both how much blood is needed, and what pressure it is at. It would eventually recognize the you were getting plenty of blood, and co... |
What causes that bubble/cloud around fighter jets when they are traveling at extremely high speeds? | It's probably a [vapor cone]. Basically, when a jet goes faster than the speed of sound, it creates areas of extremely high and low air pressure around the jet. Some of these low pressure areas lower the pressure so much that the water condenses out of the air. |
Civil rights vs Civil liberties | The very easy way to think of it is that Civil Rights refer to the idea of all people having equal treatment, especially being free from discrimination based on factors like race, sex, etc. Civil Liberties are those freedoms protected explicitly by law. First amendment rights, etc. There's some overlap, obviously. |
Why is there a scandal in South Korea right now? What happened? | It was discovered that the president of South Korea has been getting advice from a "psychic" claiming to be able to channel the spirit of her dead mother, and that not only has the president been giving federal money to this woman, but that this "psychic" has been behind pretty much every decision they 've made while i... |
What does "70mm" mean in film, and why are people excited about it? | "70mm" means that the film on which the image was collected and later projected is itself is 70mm wide. Think of older cameras that used 35mm film as a standard, but up this to 70mm and apply it to cinema. The reason 70mm film gets people excited is that the film allows for greater image resolution. Larger format films... |
Why is the Great Barrier Reef bleaching, what does that mean, and what impact does that have on global biodiversity?? | Imagine coral as a landlord - it owns property , inside which small organisms cohabit. It provides them with some chemicals required for photosynthesis and a nice place to live, it in turn provides the coral a source of energy. These microorganisms are what make corals different colours. When ocean conditions alter , t... |
Why did early pistol and musket designs have such unergonomic looking grips? | Ergonomics as a science hadn't been invented yet, and guns were mostly handcrafted pieces, so each gunsmith was kind of just doing his own thing. Ergonomics also isn't all that important when you have a gun with no sights and you're only expected to fire a couple rounds a minute at most. |
How come using better sports equipments isn't considered cheating? | It is considered cheating. There are very strict regulations about what can and cannot be used, and what types of modifications can be made to equipment. So, for example, baseball bats have to be made a certain way. If you make them out of a different material, or make them shaped different, or anything else that would... |
Why does is Cyanide so toxic if its just Carbon and Nitrogen? | The atoms that make it don't matter in this case. What matters is the shape of the molecule they make together, and how that mixes with other shapes in the human body. Imagine that some molecules are locks, and others are keys. There is one particular lock that is necessary for your cells to produce energy, which you n... |
Why do professors continuously write exams with extremely low averages and then curve, rather than write easier exams? | if they set the bar too low, they wouldn't get a representative sample of what the class understands. For example: if you're in calculus class, and the test only has "what is 2+2?" on it, then obviously everyone will pass. Which tells the professor nothing. If, however, there is a wide sampling of problems of varying d... |
Why doesn't reddit have an official iPhone app? | We already have lots of apps that work fine, like alien blue etc. Reddit doesn't need to make an official one. |
Why people talk to babies/dogs/cute things in a high pitched voice? | Lower pitched noises tend to represent anger and instill fear, while higher pitched tones tend to feel happy or nice . If you subscribe to evolutionary psychology, generally predatory animals like dogs will have low pitched growls while harmless animals like birds will have higher pitched noises. I'm not sure when or t... |
Rocket "Launch Windows" | "Launch window" may be set by multiple conditions. More mundane being a condition to shut off nearby naval and air traffic, which needs to be coordinated with appropriate authorities. The interesting part of this are relative positions of Earth and target of the mission. All planets, moons and satellites are always mov... |
The Kathy Shelton Rape Case | Kathy was brutally raped when she was 12 years old. Hillary Clinton was a lawyer in Arkansas. The defendant in the case asked for a female lawyer, the judge asked Clinton to be the public defender for this lawyer. Clinton reluctantly took the case and fought aggressively for the client and got a one year sentence and n... |
Why is the OJ case iconic? | Well, it was a huge deal at the time. The coverage was unprecedented, and in fact it is credited as being the first "reality" TV - from the white bronco chase, throughout the court coverage.Imagine Peyton Manning being charged with murdering his ex and her friend. Then imagine Peyton Manning being African American. The... |
How did the medical community determine daily vitamin intake recommendations? | A vitamin is an organic molecule that the human body has \'forgotten\' how to synthesise: over many generations it was always present in the diet, so there was no need to produce it, and those pathways fell into disuse and finally stopped working. Minerals, meanwhile, are a way for the body to get the elements it needs... |
Why did games from around decade ago have videos that played if you were idle in the menus? | They acted as a screen saver. Old CRT televisions would have an image burned into the screen if it displayed the same thing for a long time ). The video just stopped the same image for displaying for too long. These days, image burning isn't really a problem with LED and plasma screens. |
Why are computer processors produced in a vinyl size disc form? | The silicon needed for the processors is produced as a huge cylinder, which is then sliced into these thin discs, called wafers. It's cylinder shaped because of a process called [Czolchralski process]. |
What is the difference between Chrome & Chromium, and who owns Chromium? | Chrome is a browser created by Google. Chromium is an open source browser based on Chrome. Chrome OS is an operating system made by Google, where the Chrome browser is the primary user interface. It is designed for lightweight devices that are primarily used to access the internet. Chromium OS is an open source version... |
Why do gas prices change daily, but nearly all other consumer products have a fixed price? | Consumer products don't have a fixed price. Rather, they don't have a fixed cost, but retailers usually mark them up high enough that the profit buffer is still there no matter how much the cost fluctuates. There's also the theory of the "menu cost" which holds that retailers incur some cost to actually change their pr... |
What is a Home Loan Repayment? | Your home loan repayment is intially calculated on principal and interest. Example: So if you're home loan is 250,000 - over a 30 years period the repayment will be 1500 a month. Of the 1500, 500 will be interest and 1000 will be principal which is the amount you're reducing the loan by. Most banks calculate interest d... |
Theoretically, what (if any) is the lower limit of density for solid objects? In other words, how not-dense could a solid object get? | To answer that, you would have to decide when to stop calling something a solid. [Aerogel] is hardly there at all. It's a solid, but probably only just. |
Why does the DMV care how much I spend to buy a car from a relative? | Because the DMV is responsible for collecting taxes on the sale of a car from the buyer. Cars are one of those special items that are taxed even when bought used. Your relationship to the seller is irrelevant.Right, it's to collect tax and they have no way of telling whether it's the truth. It could turn up though in a... |
Why does water dry out our hands? | Your skin has a layer of oils which it uses for waterproofing, making it more difficult for water to escape your tissues. However, it's not invincible, so enough washing can strip this layer. This allows water to escape from your tissues to the air more readily, drying it out, until your body has a chance to replenish ... |
How does it feel falling through a cloud while skydiving? Is it safe to perform such a feat? | As a pilot, I can advise that as a rule of thumb, clouds have turbulence. Not always bad turbulence, but I feel lik skydiving through them is asking. It some rough bumps. Just a WAG.why wouldn't it be? clouds are made of microscopic bits of water. it'd be the same as sticking your head out of the car while passing thru... |
what causes the leaves to get caught in a gust of wind and form a mini tornado of sorts for a moment or two? | Vortexes are common in turbulent flows, like you get with air of differing temperatures. For instance as warm air rises from the surface it may pass through cooler air above it, pushing it out of the way. So you have a rising low density column with heavier density air flowing around it, potentially giving you a rising... |
Does taking a double dosage of something have the same effect as taking it twice a day? If so or if not, how? | They'll have different effects. When you ingest something, the amount in your blood increases fairly quickly as it gets digested, then begins falling off as your liver/kidneys filter it out. But that filtering is sort of a proportional thing. Like, your liver will remove 15% of whats in your system every hour, say. So ... |
If the hottest man-made temperature ever is 5,500,000,000,000C in the CERN, how come the lab and everything sorrounding it didn't melt down? | Think about the difference between the filament of a light bulb being at about 2550 Celsius vs your entire house being that temperature. Obviously that is the difference between business as usual and your entire house burning, melting, and exploding at the same time. That very high temperature at CERN was in a very sma... |
How do the citizens from countries like Canada and USA get the connections to join groups like ISIS or even the Peshmerga? | Through social media and "connections" that are met at gatherings, such as mosques. NOTE: This is not to say that all mosques are recruiting grounds for ISIS but it has happen.The same way that they get connection to organizations such as the Hell's Angels, or the KKK or Neo-Nazi groups. Those groups do have supporters... |
Why is it that 4G internet on my phone feels insanely slow, almost useless sometimes, but years ago, back when 4G and LTE didn't exist, 3G on my Blackberry felt fine? | It's because websites have put more content into their pages. If you tried to use your old 3G again, it would be painfully slow. Even though our computers are getting faster, the actual time taken to run our software is the same across the years. We keep building heavier software. |
why do car engines vibrate more when in park? | When your engine runs, it doesn't deliver nice constant power. It's a series of captured explosions delivering sudden bursts of power, followed by a lag until the next burst. This is more noticeable when the engine is running really slowly, since the explosions are further apart. Also, the weight and resistance of the ... |
Why is it that television shows from Britain seem to appear different than American tv shows? | Couple things would give it a different look. First, they use PAL rather than NTSC. Pal uses 25 fps while ntsc uses 30 so pal will look more cinematic while ntsc will look more fluid. Also color encoding differences between pal and ntsc. When we in the U.S. watch a Britcom or other material produced in the UK, there wi... |
Why did using AM radio for music fall out of favour? | AM sound quality isn't great, but it travels longer distances. FM sounds better, but doesn't travel far. This is probably not an official stance, but I think AM - being sports and news talk primarily - has a smaller audience appeal, so reaching farther audiences is better for them as it expands their potential listener... |
Why do I get a weird tingly sensation in the bridge of my nose when something is less than a foot in front of my face? | I know exactly what you're talking about. I get this too, though don't know much about it either. The feeling will linger on the tip of my nose for up to a minute after the person or thing leaves that threshold.Are you a dude? If so, is it kinda like the feeling you get when something is not too far from your family je... |
Why are "month end" sales so important to companies? | My take: we tend to procrastinate. If monthly target is 20 widgets, logic would state to sell 5 a week. Problem is, we bask in the month end hang over and drag our ass in week one, then struggle to make up for lost time in weeks 2 and 3. This leads to a balls out race into insanity in week 4. But don't sweat it, week 1... |
As a broke, 24-year-old pizza delivery guy what can we as citizens do to help fight against internet censorship? | Honestly I question whether this belongs in ELI5. There really isn't a way to explain what the problem is without 'bias' or 'blatant speculation'.The most important thing to do right now is to remain informed and to write letters to your representatives giving your well-reasoned opinion why things like SOPA are bad for... |
What is really happening when you snap mentally? | Define "snap". It can mean a lot of different things. Like snapping from stress where you just can't take it or snapping as in waking up one day and killing 10 people?You're going to have to be a lot more specific. "Snapping" is a colloquial term, not a scientific or medical one, that describes a bunch of different sit... |
Why do free range eggs have harder shells than the "conventional" kind? | Free range chickens have a more varied diet which contains more minerals. Or in short, because they eat bugs.I don't mean to hijack, but since we're on the topic- I've heard that free range eggs are not necessarily so, that there is a bit of deceit or exaggeration involved. Anybody here with inside knowledge or source ... |
Why are some people attached to a particular sleeping position? | I would also like to know why I always end up sleeping on my stomach with my arms by my head, even though my arms fall aslep every time I do this. My scumbag sleeping brain never learns Because on my right side with my arm under the pillow and my head on the pillow with my left leg outside of the blankets is the most c... |
why is it that fire normally burns orange? Why isn’t it blue, green, or purple? | The color of a flame depends on what is burning and how hot it is. Most flames come from burning carbon based fuel and these things burn orange/red/yellow. The higher the temperature the whiter the flame. Other chemical substances simply burn different colors than carbon. This has to do with the amount of energy given ... |
Why were futurist so optimistic about the year 2000? | Futurists of the 20th century merely used the year 2000 as a distant, exotic-sounding future year. Their optimism was based on projecting their economic system into the future in order to demonstrate that the troubles of their time are temporary and that perseverance will lead to a greater good. The last time all the d... |
What is the advantage of being young when it comes to gymnastics? | Because the rules don't allow them to compete internationally below 16. Younger girls gymnasts can complete more difficult maneuvers than adults, performance peaks at 16 to 18 because 16 is the cut off. It's not bullshit, a large part of women's gymnastics events involves spinning the body . During puberty, women grow ... |
How did plants appear on land when all life started in the ocean? | Just as with animals plants grew in shallower and shallower water then at the edge of the water then on the land. A gradual 'evolution' from aquatic to terrestrial. |
Why computer viruses associated so strongly with internet porn? | I'm not sure about this, but I also guess that if you are watching porn, you are more likely to download pictures videos, Java plugins and even new codecs for watching those videos etc All that content can hold malicious code to attack your computer I guess.Porn is a very strong inducement. Click here to see famous boo... |
Why does the sun seem to burn hotter in the morning (ca. 10:00) than in the afternoon (ca. 17:00)? | 1000 is only 2 hours off of noon. 1700 is 5 hours off if noon. The morning equivalent of 1700 would be 0700.It has to do with the height of the sun in the at 10:00 and 17:00. In the morning at 10:00am the sun is almost at its highest position in the sky. Because of this the sun radiates more energy towards us and the E... |
How is time an illusion | People like to think this, and *deep thinkers* come up with this on their own all the time, but time is actually a part of the universe, that exists with or without people. It is relative, but it definitely exists and has been mathematically proven over and over |
Why is that James Bond movie called 'Quantum of Solace?' | It is also a term meaning "extremely small". The idea is that Bond is getting an "extremely small" amount of solace by hunting down and killing the people responsible for Vesper's death. Also the bad guy's are called "Quantum" so there is that too.Like most Bond movies, it was the title of one of Ian Fleming's 007 stor... |
What is actually happening to metal in a microwave? | As microwaves hit the metal, electrons build up on the surface. Depending on the shape of the metal, this may result in an electric potential which eventually arcs, creating a spark. This spark can be enough to ignite paper, starting a fire in the oven. |
How does facebook avoid paying its fair share in tax | I'm not going to talk specifically about Facebook or Ireland but this is how profit shifting usually works. Country A has 30% company tax and 300 million people and all sorts of publicly funded programs to create a huge Internet market, including skilled staff. Country B has 1% tax and sweet fuck all in population, no ... |
How do scientist determine how many animals are left of a certain endangered species? | Depends on the species. For larger animals like elephants you can do aerial surveys to count the number of family groups. Mammals are also very easy to keep track of via radio collar or transmitter. For harder and more elusive species all we can really do is calculate habitat area, calculate how much area is needed for... |
What is Blu Ray? Why is it significant? | It's essentially the same tech as a cd or a dvd, but it uses a laser which is in the blue spectrum rather than the red spectrum, which means it has a wavelength that is considerably shorter than that of the previous formats and allows you to write the data closer together on the disk, which means you can get far greate... |
Can we help who we are aroused by? | There's many possible meanings of this question. If you're talking about homosexuality then no, you can't, but do mean things like sexual fetishes or sexual disorders like pedophilia? Most fetishes develop over time and are not considered harmful, so people don't usually try to change. Pedophilia, however, can be treat... |
Why do cities in China still have such high pollution when they have so many bike users? | Most Chinese pollution is particulate based. Mainly from the burning of coal . Chinese emission regulations are actually stricter than in the US from a design perspective however they seem to be much, much more lenient / not enforced when in operation. In the West however pollution is more chemical based such as NOx an... |
How do giant cruise ships float? | The mass of the volume of water that they displace while sitting in the water, is greater than their mass. So, even though it's an enormous pile of metal, it's still "lighter" than the water it's displacingThe metal is heavy, but there is a lot of air inside the metal structure of a cruise ship, and the air is light. T... |
Being caught for piracy. | For direct downloads from a server, they have to either seize the logs of the server, or work with ISPs or other men in the middle to figure out who is downloading what. For bittorrent and similar peer to peer systems, it's pretty trivial. Find a torrent you want to monitor, join the downloaders, log the IPs of the pee... |
Is there a reason why "hold music" when you call businesses has to be so obnoxious? | The quality of phone calls have to be able to transmit voices acceptably. Music requires much, much more data and so no matter what music you put on there is going to sound like shit. Music that is very "full" and uses a large range of frequencies at once will sound even worse. Very simply solo piano or something can b... |
How would a compete collapse of Russia's economy affect the rest of the world? Which countries would suffer the most? | With my basic understanding of economies and greater knowledge of energy markets, Russia's current troubles won't have too much of an effect on the rest of the world. Most of their money comes from energy exports and with their issues in Ukraine earlier this year, many of their customers had already turned to other sou... |
Beastie Boys "No Sleep Till Brooklyn" on TNMT movie commercial? Despite statement that no song will be used for commercials?? | Sabotage was in Star Trek . I think that films are OK with the Beasties, including commercials for the movies. I think the no commercial clause was actually worded as not used to sell commercial products, like Coke Zero or Tampax. That cheapens the music. Film is another form of art, that they probably respected. To be... |
how are movies that were recorded in a lower definition able to be released in higher definitions? | They were recorded on film, which isn't limited to an amount of pixels- for the most part. Remember that they were broadcast on a huge screen. As long as you can get the original print you can re-release the movie as HD.There is a lot of confusion here because "high definition" is a *television* standard, and movies ar... |
Why do some electronics have lights to indicate that they are off? | Electronics don't have lights to indicate they're off. If they are off then by definition there's no power to run the lights. However, some electronics *do* have lights to tell you they're on standby or low power mode. This is important because you need to know whether certain devices are still powered to ensure they c... |
Why does it seem that more men snore than women? | It may just be the case that it's louder when men snore because men as a rule have larger lung capacities than women.If it seems that way, its either personal experience or media portrayal, neither of which accurately reflect the actual worldThe truth is snores just as much as but hears about it more because likes to m... |
How is powerful acid stored without eating away its container? | Highly inert materials are used. Frequently glass or a dense polymer. "powerful acid" simply describes a highly reactive solution that reacts in a certain manner. You simply have to pick a material that resists the particular chemical reaction the solution favors. |
If some letters are silent in certain words then why include then at all? | Often just tradition. When they began printing books in English, there weren't many typesetters in England, so they imported Dutch typesetters who often spelled English words in a Dutch way. So that's how we got the 'h' in 'ghost' and 'ghastly.' Other times the silent letter actually serves a purpose. The difference be... |
Why do historians talk about civilizations being more advanced who had "the concept of zero," and why was that concept so hard to develop? | Creating a "concept of zero" is the first step towards using math for something more complicated than counting cows in a herd, or a weight in gold. Once you are at that point, it's possible to move on to more complicated math, which leads to basic engineering and architecture. Zero is the first mental jump from "number... |
Why did older CRT monitors for computers typically work in a black background with green text? | [Green P1 phosphors ] had long persistence . Amber P3 was medium persistence. White P4 was faster. Longer persistence meant your video could be at a lower frame rate without flicker. Nobody was watching videos or playing fast games, so it didn't really matter. |
Google made 3bn USD profit, but wall street is not happy, eli5 me why?? | Because they expected more. Like you're 5: imagine I promise you 20 sweets next week. But when next week comes around, I only have 15 sweets to give you. You wouldn't be happy, right? But that doesn't fully explain it. Imagine I promise you 20 sweets next week if you give me your pocket money. But Johnny's dad says tha... |
Difference between 'fiscal' and 'financial' | To put it in simple terms fiscal just has to do with government spending & revenue. You may hear or read the term \'fiscally conservative\' which is the view on how the government should spend their money, which generally means reducing the government spending and basically reducing the national debt. Fiscal conservati... |
Why do busses not have enough seatbelts? | Busses have a very large mass compared to anything they hit. In almost every collision a bus is involved in, it does not decelerate quickly enough to do serious harm to the passengers. Large mass means a lot of momentum and most things that get hit by busses just move out of the wayTypically they say it is for safety, ... |
Data limits. Why were pioneer plans offering unlimited data and now we're seeing caps on not only cell service, but even at-home ISPs? | ISPs can no longer increase revenue by adding subscribers. Nearly everyone that wants and can afford broadband already has it. This leaves them looking for new revenue streams. It is also a way to limit cord cutting. |
Why do some people never get sick with colds or flu when everyone else does? | As a non-expert, I would assume it's due to two primary factors. 1) Genetics 2) Prior exposure in a small amount to an illness that allowed the body to build up an immunity. I have no medical proof to back it up, but the people I know who are sick most often are the ones continuously using hand sanitizer. I believe it'... |
If I pour one cup (~600) of bees into the dryer and run it (without heat) for a couple minutes, could they just fly around in the middle without issue? | There's only one way to find out. Be sure to take a video, you're going to need it for the TIFU.Where would you get a cup of bees? Even if you had this cup of bees, how would you pour it into the dryer?Probably not Even though the air in the middle wont completely rotate with the dryer, most driers have fins and would ... |
Why exactly wasn't Netflix offered to those 130 countries before today? | Varying laws and rights holders is the intuitive answer, but if you think about it, that doesn't explain why the 130 countries were added at the same time as opposed to gradually as Netflix worked through legal issues. The truth is it's a numbers game. A common clause in media rights contracts limits the number of coun... |
Why do episodes of TV shows air months apart in different countries even though they still air in the same language? | I'm pretty sure this has to do with licensing & intellectual property laws and getting them sorted out globally. |
If wood pallets are in such demand, why are stores giving them away? | There are two types of wood pallet: hardwood and softwood. The hardwood ones are in true demand, and are reusable. These are generally painted. The softwood ones are, for the most part, considered disposable and those are the ones you will find for free. Be careful where you get your pallets. Many are loaded with vario... |
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