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why is a ceiling fan virtually silent, but not box fans/stand up fans? | It's speed. Box fans are smaller so you want them to go faster. When I turn my ceiling fan on top speed, I hear it.Ceiling fans are bigger, spin slower, and have differently shaped blades. The purpose of a ceiling fan is to quietly circulate air through a room. Box and stand fans spin fast and with blades designed for ... |
Why is it that some primetime shows have 20 episodes per season, whereas others only have 10 episodes, or two 8-episode "half seasons"? | Because different shows have different scheduling needs and different paces at which they want to put the story out there. It's usually the network's decision. |
How does weather forecasting work, and how do meteorologists predict the weather days and weeks in advance with such a high degree of accuracy? | It's called "modeling". Using a network of [weather stations] around the world, meteorologists can analyze wind speed, direction, temperature, barometric pressure, humidity to form an accurate picture of the current state of the weather, and how it's changing over time. From there, it's just a matter of using a compute... |
Why are there species-specific names for groups of animals? Murder, pack, gaggle, court, etc. | Because Victorian biologists decided there should be. And there's an awful lot of stuff we do that originated in the Victorian era. Edit: And no, more recently discovered species don't have group names like that. |
If listening to music at high volumes is bad for your ears, why are headphone / PC amplifiers such a big deal? | Headphone amplifiers are not merely just for increasing the volume. There are different specification for each headphones namely impedance this value means it is harder to drive . If you put a 600 ohm headphone on a soundcard/headphone amplifier that could only power a 300 ohm headphone, the volume that will come out o... |
why haven't consoles offered the option for multi-monitor gaming? Hardware limitations? | Less hardware limitations, more interest limitations. Like any device, consoles are going to be developed to meet the needs / wishes of most of the target market. And most of the people playing consoles do not care for multi-monitor gaming. Half of the advantage of a console is that you can easily plug it into your tv ... |
Why do only mediocre bands participate in Eurovision? | Because it's not relevant. It's not a measure of quality. It's not a prize that's respected in the music industry. It's just television entertainment. |
Why do cats love small cramped spaces like boxes or under the bed? | They love to watch others while being in a safe place themselves. Sitting in a box is the perfect place to watch people without fearing an ambush yourself. People often mention "cat chess", i.e. several cats that keep repositioning themselves so they can watch the others while being as hidden as possible themselves.It'... |
How did people translate languages accurately when they didn't understand a word the other person was saying? | If you have a living person who speaks the other language, you can work together to figure out each other's language, especially if you know anything about linguistics. It might take some time, but you can work it out with another person. If there's no living speaker then you need some kind of reference that let's you ... |
why do our stomachs growl? | The "growling" is due to your stomach muscles contracting in order to mix, crush, and propel digested food. Usually you won't be able to hear the sound because it is masked by the food being digested. However, a few hours after you eat, your digestive tract will contract in order to push any remaining food or bacteria ... |
Race, Breed, Subspecies: what are the differences? | Races only have small physical differences that aren't really reflected in the genetic makeup. It's very possible for there to be more genetic variation between two Germans than between a German and a Kenyan, but the two Germans are still of the same race just because of their skin color. Subspecies have more significa... |
When you're about to fall or spill something what is that feeling in your belly? | It does have to do with adrenaline! When you become anxious or afraid, your body's stress hormones move blood from one place to another. Your digestive system needs blood to make it work. But if you're in danger, you don't need your digestive system to work as hard any more. The blood is sent to your brain, your nerves... |
How do they come up with the names for medicine? | a lot of the time they are shortened versions of their very long and complex chemical names. for ex, Ibuprofen from **isobutylphenylpropanoic acid** Do you mean the real name of the medicine like aripiprazole?Or the marketing made up name like "abilify"? |
Isn't threatening to revealembarrasing videos of people for money extortion? How are people not prosecuted for it? | It is indeed extortion and illegal. Many people end up going to jail for it. For example, [Autumn Jackson] was sent to prison for trying to extort Bill CosbyThe reason that extortion can work is that in order for anyone to be prosecuted for it, the damaging information *has* to become public. Whenever you hear about so... |
Why do flies come back to me after I try to swat them and miss? Doesn't it register into their fight or flight response? | They can't really comprehend that you're actively targeting them. The most they deal with outside of humans are animal tails swinging in their general direction. Flies don't understand hatred, they are beautiful, shit-eating beings like that. |
Why does 'republican' mean something completely different in Europe compared to what it means in the US? | Because it is the name of the other major party of the US, so the political ideology and goals of that party greatly define what republican means in the US. In Europe on the other hand there are still a lot of monarchies so republican is more understood as the opposite of monarchistIn countries that have traditionally ... |
How can things like plastic be clear(transparent)? | Funny you mention stretching because this actually a way you can make a polymer , which forms a plastic, not transparent. Basically what happens is this: in an unclear plastic the light gets refracted inside the plastic. You can actually still see light come out at the other end, so light still passes through, it just ... |
When I was a kid, why was channel 3 the chosen AUX/input for most game systems or VHS players? | Most devices that used RF adapters actually had switches on them to select between channel 3 or 4. See: _URL_0_ Most media markets did not have something broadcasting on *both* channel 3 and channel 4 because the frequencies that carried those particular channels were more likely to interfere with each other over the a... |
How do single-file games work? | It finds things inside it. .dat is a database file type, it's pretty much just a glorified folder. |
Why are chairs slightly incurved instead of the other way around ? | Some busses and trains in sweden actually have chairs that make you sit with a straight back, but i think It's cause people find those types of chairs more comfortable |
What is the connection between birds, reptiles, and dinosaurs? | Dinosaurs are a diverse clade of reptiles. Birds are descendants of dinosaurs, and technically by the phylogenetic system thus are dinosaurs and also reptiles. However, by that measure, humans are also reptiles . As such, there are limits to the usefulness of applying such classifications too widelyReptile is a poor te... |
why people while hugging in non-romantic situation are "tapping" each others backs with a palm? | It's just a friendly thing to do that stems from mothers burping their babies and then later on patting their kids on the back as a friendly good job or hello. Later on it just continues and people continue to do it. It's an old habit of society.Edit: had a typo and fixed it |
Why are chips and salsa generally given for free at most Mexican restaurants? | It's like bread and butter at an Italian restaurant. Something to snack on before your meal gets out, cheap and generally likable. |
Why does brightness and staring too much at a screen produce eye fatigue and headaches? | This is what's known as computer vision syndrome. When you're staring at the computer screen for hours at a time, your eyes have to stay focused on it. The muscles that focus and move your eyes are fast-twitch muscles, and aren't really designed to focus the way we do on computer screens. IIRC, when using a monitor, ou... |
Why has pizza delivery in "30 minutes or less" become uncommon? | About 20 years ago, there was a multi-million dollar judgement against Domino's when a woman was hit by a pizza delivery driver who was not operating the vehicle safely. This caused a lot of bad publicity for the "fast pizza delivery" deal, and as a result Domino's dropped it's "30 minutes or free" guarantee, and other... |
Why are Mountains triangular in shape (or at least similar to a triangle | It's the result of gravity and erosion. Mountains are shaped over millenia, and in that much time the force of wind and rain wears down and breaks apart the rock that makes up the mountain. As the mountain crumbles, gravity shapes it into a rough cone: the mountain falls away radially around the peak. The "triangle" im... |
Why are donuts considered a breakfast food? | They are highly caloric and sugary, so it's best to eat them in the morning because then you're active for whole rest of the day and you can burn off that excess energy from the sugar and burst of calories. |
Why detox water if I am already having fruits, veggie and drinking water everyday? | Detox is a scam. Your body does not accumulate "toxins" and there is no amount of drinking/fasting/pooping you can do to "detoxify" anything.They are making money, pure and simple. Why don't you read up on groups of people who live longer than average and imitate their diet? |
In uncertain times, is it better to have your savings in the form of money? Or precious metals? | during recession - currency during extreme meltdown of society - precious metals', "If you honestly think civilization is going to collapse, gasoline, food, and water would be what you hold. Precious metals won't amount to anything more than paper currency would. Now, if you aren't pushing the fringe panic button, havi... |
What getting a "tune-up" on your car consists of. | The basics of a tune up are fluid changes of a majority of components such as oil, trans fluid, brake fluids, power steering, coolants, and window wash fluids. The filters for the components should also be replaced at the same time. Spark plugs should be checked and depending on the carbon buildup they may be changed o... |
Surrogacies...if Donor A fertilizes Donor B's egg, and it's implanted in Donor C, does the baby have any of Donor C's genetic characteristics as a result of the incubation? | Genetic characteristics? No, not as such. The surrogate does not contribute any genetic information to the zygote. But does the surrogate not matter at all? I think that might be too much to claim. If nothing else, the womb environment in a surrogate mother will be at least ever-so-slightly different from that in the w... |
Student loan jargon. Read the papers, still confused. (So much for a college education right?) | Head to your local bank or credit union and explain your situation. With a 4-year degree and steady job you should be able to get some decent refinancing options. You'll pay a higher interest rate on your debt, but you should be able to take your monthly payments down significantly. |
Why when I'm tired do I turn the TV down really low, but I'm still able to hear it? | It's a combination of factors. When you're tired, you're not up and about causing noise in your immediate vicinity or distorting the sounds of the TV by moving around. You also lose your capacity to focus on several things at once when tired; you're focusing on the sounds coming from the TV and not simultaneously juggl... |
Why we are told to consume some medicines before food and some after food | As well as the gastrointestinal pH affecting drug absorption some drugs are purposely given with or immediately after a meal to slow down absorption or to provide short term protection against the acidic nature of the stomach contents . Drugs mixed with food pass into the small intestine more slowly than drug mixed in ... |
Why do soap operas look the way they do? What is the camera/production technique that makes them look different? | nice video of a side-by-side comparison of it on and off. _URL_0_They're shot at a higher frame rate. Even some newer TVs try to up the frame rate of movies from 25fps or so to about sixty and it also gives that "cheap" appearance. Here's some more info on the soap opera effect. _URL_1_ |
Power generation -- please help me to understand the 'monthly average real-time locational marginal price for energy at the commercial node.' | So the monthly average real-time locational marginal price for energy at the commercial node is quite a mouthful, so let's break it down. Monthly average is pretty easy to understand the average price for the month. Real-time refers to the energy demand for a specific time period , and then the price associated with it... |
How do companies determine the cost of acquiring a customer? | 1) Time and material spent on sales & advertising. If you spend $1 million on an advertising campaign and it averages 10 new customers, then that's at least $100K to acquire the customer. 2) Time & Material getting the new customer set up. This covers any kind of material that you have to give the customer , the time i... |
Why do businesses with double doors usually only unlock one? | For the same reason a lot of convenience stores and gas stations modify their doors to be harder to push open . It makes it harder for people to run out and take off in a snatch-and-grab or other criminal situation. You'll especially notice this in pawn shops that have two sets of doors and a little hallway in between ... |
How can a hash, resulting from a fixed-length algorithm, always generate unique results if there are a limited number of possible results, but much more inputs? | No, you're definitely correct. Because you can hash a message of any length down to a hash of a finite number of bits , there are an infinite number of hash collisions. Part of the "security" of the hash is how difficult it is to go find a collision. A huge focus of modern cryptographical research is to find ways to co... |
The whole Charlie Manson/Manson family thing | Charles Manson was a serial killer. But instead of killing people himself, he had his "family" do it for him. He brainwashed/manipulated/indoctrinated a bunch of women . They loved him and would do anything for him. Well, "anything" meant killing people, so they did. He's currently serving life in prison. |
Why do our bodies rock back and forth when we sit? | Redistributing load on muscles and joints prevents harm and aches that would occur more frequently in a prolonged loading scenario. tl;dr feels good man |
Why spicy foods don't lose their heat when they're deep fried if capsaicin is fat soluble? | Two reasons. First, the oil is never in contact with all that much capsaicin. Most of it is in the food, behind batter, or behind other capsaicin particles. So even if the oil does dissolve some of it, there is still a lot of capsaicin that is inaccessible to the oil. Second is kinetics. Soluble molecules can take thei... |
Why aren't rich nations closer to Syria, like Saudi Arabia and United Arab Emirates being pressured into taking in any refugees? | It's hard to pressure a country that beheads people for sorcery in 2015. They aren't exactly rational actors. |
How is it people find out which towns are doing events on certain nights (trick-or-treating/fireworks a day early/late) | Once upon a time, in an age before computers, people had to figure out a way to share information and let the town know about events. These were dark times and information was hard to come by, but every morning a boy on a bike would drop you off a bundle of information that would tell you about what had happened and wh... |
Why do some planes leave a trail of condensation/mist behind? What causes these trails? | It is water vapor. When the engines burn fuel, they put out exhaust gases, and part of these gases is steam These Con-Trails are made up of water particles put off from the exhaust of the jet engines. 30,000ft up it is very cold, so when the engines burn off fuel, it heats and vaporizes what water is in the air. That w... |
why does a car driving through the hot sun not get as hot as a car parked in the hot sun? | Convective cooling.\rThe shell of a moving car is going to be air temperature mostly while a stationary car since it has much less convection can be quite alot warmer. |
Why is Slovakia's capital at Bratislava at the outskirts of the country? | Slovakia wasn't always Slovakia. It used to belong to the Austrian-Hungarian monarchy, later Czechoslovakia. Bratislava has always been an important centre for education, religion, bureaucracy, trade etc. so when we became independent, it was chosen to be our capital. Also, it's not like we're the only ones Ottawa, Was... |
What were the Yugoslav wars about and why was America involved in them? | If you want answers to questions like this that are "unbiased" and without conspiracy theories, one of your absolute best bets is to submit your question to /r/AskHistorians. They have very strict journalistic integrity and the moderators take it very seriously. Jokes and quack stuff gets deleted almost immediately.The... |
Why do scrapes and other injuries feel more painful when its cold outside? | When it's cold, your body draws blood in from the limbs to conserve its warmth by constricting the veins in those limbs. This causes the skin and flesh to press on the nerves, increasing their sensitivity. |
How was it possible that OJ Simpson was not charged with either murder when the prosecutors had such compelling evidence against him? | Charged with means the prosecutors formally begin a trial. OJ Simpson was charged with the murder of Nichole Brown Simpson and Ron Goldman. He was not convicted, meaning the jury voted unanimously that the prosecution could not prove its case beyond a reasonable doubt. Some of jurors have provided details in [books] ) ... |
So humans regenerate skin cells and all, and that's cool, but if we constantly make new skin cells, why do I still have freckles, when birthmarks might fade over time? | Because freckles are constantly being created as the melanin in your skin reacts to the sunlight Whereas a birthmark is more of a 1 time event and can be "overwritten" with fresh new cells. Much like a scar |
What is a web scraper and what can they be used for? | A web scraper is a piece of software that goes to a website, grabs pages & then parses out the interesting/useful data. Let's say you want to follow the price of items at Amazon - your web scraper would request the page, find the item name & price and return that to you in a clean, easy to work with format. Some of the... |
When they say that we move at a finite speed through space-time, what are the denominator and numerator of the rate? | I think what you're asking for is what units we use, as in "kilometers per hour". If that's correct, you could separate the space and times components and say "meters per second" for space and "seconds per second" for time, although this is simplistic. This may not be the best ELI5, but I'm not sure how else to explain... |
Why do Homeowner Associations hold such tremendous power? | HOAs are entirely voluntary. If you don't want to join one, you simply don't purchase property governed by an association. That'll be pretty hard to do if you want to live in a place with shared property , but it's quite easy if you want to live in a house. There are plenty of horror stories about HOAs on reddit, but t... |
Keep Calm and Carry On | I don't think those particular posters were publicy used, but they were certainly prepared and would have been used, I think, in the event of an invasion. They 've got popular because they're pretty indicative of the British attitude towards any crisis - not to fuss or panic, just tut and go about our business. They al... |
Why is the news of China cutting domestic interest rates causing the U.S. stock markets to surge? | Mainly it's that people who were investing in China are seeing the lower interest rates as indicating lower returns on those investments. Those investors pull money out of Chinese investments and put it in US investments instead. That causes the US market to surge since there are many buyers |
Was WW2 propaganda (posters, movies, etc.) blatantly and widely referred to as "propaganda" at the time or is that just the description we give it in retrospect? | The enemy's propaganda is always called propaganda. Although, its interesting that the word didn't always have such negative connotations. The root of the word is the same as 'propagation', and it began in a religious context. Even as recently as WW1 the British would charmingly refer to their own propaganda coming out... |
What is the unit of viscosity and how is it measured? | The SI unit is the Poise, and it's measured by applying shear stress to the liquid. A typical viscometer has the liquid sandwiched between two concentric plates that the fluid sticks to, and measures the torque needed to turn one of them, then you calculate the viscosity from that. The plates can't be smooth, of course... |
How will this "businesses can buy your internet history" work? Can you buy an a specific persons? | No, you can't buy Donald Trump's browsing history. There are very few people for whom there would be a market, and they would sue the ISP. What you will be able to say is I have two versions of this ad, A and B. If someone goes to more republican sites than democratic ones, when you get the URL for my ad, put up versio... |
How are chip-readers more secure than magnetic strips? | It's not necessarily the reader, but the card itself. In an eli5 sense, a magnetic stripe says "I am X" when swiped. It is extremely easy to create a copy of the card that also says "I am X". A chip card, when read, initiates a conversation like "If you say you are card X, please complete this math problem using your s... |
why can't we bundle our health insurance with our other mandatory insurances like car, home and renters? Or even combine it with life insurance and other insurances? | There would be no real benefit. The money you pay for your car and home insurance premiums doesn't go in some account with your name on it. "This is Yolo20152016's unused insurance money" It goes towards the profit and operating costs of the insurance company. Most importantly It pays the claims of other people that al... |
Why don't horsepower and torque correlate? ELI5 | Horsepower and torque do correlate. The formula for horsepower is: HP = / 5252 "Horsepower is torque corrected for RPM." |
What happens to all the extra food in shows like "MasterChef"? | It depends on the show. Usually, the crews get first pick of the food. MasterChef specifically donates leftovers to OzHarvest, and many other shows have similar arrangements with charities. Iron Chef would let the chefs take home food, so occasionally competitors would "accidentally" open packages containing expensive ... |
What is a Flexible Spending Account, and how can I take advantage of it? | I'm going to assume you're talking about a medical flex spending account offered to you by the company you're working at. If that's not the case, feel free to ignore me. These are accounts that you can send a certain portion of your money each paycheck into tax free. The trick is that this money can only be spent on ce... |
My Almost 5 year old brother wants to know what the internet and a website IS | The internet is a bunch of computers, wires and software all working together. Some computers do different kind of things. A website is a page that is written in a special language so people can show videos music write things and show cool applications. To get to a website we use a web browser that talks to computers t... |
Seeing as mosquitos are some of the biggest threats to continued human development, would there be any significant consequences to driving them extinct? | An analysis I read about this had a basic "not anything drastic" as an answer. They are a major component of the insect food chain and they don't heavily compete with other insects for their food so many mosquito-eaters - bats, fish, dragonflies - might have reduced populations due to a reduction in their food supply.... |
How do lobbying groups control advertisers? | Usually lobbying groups are advertisers themselves, as in, they pay to have a commercial made supporting a certain opinion or conversely they advertise the hazards of a certain action . |
Why do different operating systems require different versions of the same software? | Software developer here, There is a thing called a system call, and this is basically the program asking the operating system to perform some work, for example, reading data from a file. A program doesn't know how to do this, it's not part of its program to know what a hard drive is, or how different manufacturer hard ... |
Do air marshals really spend most of their time flying around in random planes? How are they assigned? Or is that just something for the movies? | The Federal Air Marshal Service is part of the Department of Homeland Security. They are trained law enforcement officers who train specifically around planes/aviation. They go through the Federal Law Enforcement Training Center , which all federal LEOs go through, and a secondary training specific to their role. They ... |
What does our body use trace metals (eg: iron) for? | Iron is used in haemoglobin, for binding oxygen in our erythrocytes . Magnesium is used as a regulator in hundreds of biological reactions in the body. They are mainly used to help other reactions either happen at all, or progress faster. |
if public IP addresses are dynamic, which means they are constantly changing, how is internet activity able to be tracked, logged, etc.? | Dynamic IPs aren't really all that dynamic. You keep the same IP as long as you renew your lease every 2-3 days. Some systems may give you even longer before recycling your address. Beyond that, it's not unlikely that your ISP logged the information about who was assigned the IP & still has the data sitting around.In o... |
Why do video game companies make games that you can't pause offline? Mainly zombies in black ops 3 | To make the game more tense. They could easily add pause, but but bring able to gets some people more immersed. Dark Souls did that to me. |
Can you briefly explain Dr Who? | Doctor Who's main character is The Doctor himself, he is a Time Lord and he nicked a time traveling spaceship called the TARDIS . The Daleks are a genetically modified race that lost the ability to feel pity, compassion, or remorse and they consider themselves a superior race and have a desire to "purge" the Universe o... |
How is it that the distance between Earth and the moon can supposedly fit all of the planets, but pictures show the moon relatively close to Earth? | [Well here's a picture of the Moon and Earth drawn to scale.] Most of the picture is just black space, which is useful in situations like this where you want to gauge the distance between them, but for most illustrating purposes you usually just want to show the two bodies together with the moon slightly further away t... |
tea bags in the US politics | There is a party in American politics called the [Tea Party]. Making fun of them by calling them tea bags tea baggers. I can elaborate on tea bagging if you want. |
how long does person have to be dead before it’s considered archaeology instead of grave robbing? | It is not a matter of time, it is a matter of intent and legality. A graverobber illegal takes objects from graves to sell them. An archaeologist legally takes objects from graves to study themIt depends on who owns the burial site. Archeologists must get permission from the landowner and get an excavation permit from ... |
What makes the Millennium problems so difficult? | There are several different types of problem there. Like any problem the solution seems hard until someone figures it out the first time. Unless many people try and nobody comes upon the key. Then they get noticed, and in the case of the millennium prizes, they get collected together and publicized by people willing to... |
What do Ant & Roach killers that kill on contact such as Ultra-Kill or Raid actually do to the ants? | It is a matter of debate whether insects like ants feel \'pain\' in the sense that we do. Their nervous systems are much simpler and, in a lot of cases, much more autonomic than ours. Cockroaches have [hairlike appendages on their bodies which act as sensors] and detect air flow changes, alerting them to impending dang... |
Rational Emotive Behaviour Theory or R.E.B.T | It's a form of [cognitive-behavioural therapy] that espouses rational, logical thinking, flexibility, and acceptance as the antidote to dysfunction . Essentially, the practitioner is there to help the client challenge self-defeating or harmful perceptions of a situation situation, examine evidence of a particular assum... |
Whats the point of circumcision? | This is an episode of Penn & Teller - Bullshit - Circumcision. _URL_0_', "These days it's mostly about religion and social norm. Some people say it's because of cleanliness, but there is really no problem in cleaning an uncircumsised penis. There is also the argument of cutting it before any potential problems with the... |
How does VLC remember where you were last watching? | The Mac version uses a dictionary called recentlyPlayedMedia in its preferences file. Each entry contains the file path and the time offset in seconds. |
Why does audio rapidly repeat itself when a computer crashes? | At a high level, sound cards playback sound by reading digital data from a buffer and converting it into an analog signal to transmit to the speaker. When a normal stream of audio is being played back, its data is written into the buffer as a stream so there's no hops or skips - as the digital audio converter scans bac... |
What is a magic eraser and why does it work? | It's melamine foam, which is a really hard material made into a sponge. It's basically really fine sandpaper, so be careful what you clean with it . |
How is it that we are the most advanced species on the planet, yet our young take so long (much longer than most species) to be self-sufficient? | That's just it. It takes a while to amass information and use it. An animal just does whatever comes natural, aka 'instinct'. But humans are taught and trained and learn and practice and and Layers and layers of information and training to get us to the point where we can actually achieve more than the previous generat... |
wtf is a 'noun clause'' and why would I use it? | It's a dependent clause that acts as a noun. For example: "Whoever thought of that idea is a genius" The noun clause in that is "whoever thought of that idea" this entire phrase is subject of that sentence. |
Why are earthquakes with a high magnitude appearing frequently? | They're not? Earthquake frequency has not noticeably increased. Here's [all 7.0+ earthquakes in the last 5 years]. They're pretty evenly spread over that time. Yeah, there were several big ones today, but random events clump up it's the nature of randomness. |
What does one have to do to be able to make a subreddit | You have to have a 30-day-old account and an amount of positive karma. You basically have no karma at the moment, so I would say that you should comment on some threads to build it up.What sub do you wanna make? I'll make it for you, and you can be a moderator |
Why are people so against ResponsibleOhio's plan for marijauna legalization? | The main complaint is that it arbitrarily limits the production and sale of cannabis to 10 state-chosen companies. This is good for the state but bad for consumers Imagine if the government, coming out of liquor prohibition, had made it legal to drink alcohol again, but only let Jack Daniels and Budweiser make it. In t... |
How come this scan of the chromosomes are in multiple colors? | False-color image. Its colored with the intent of making parts more easy to tell apart, to highlight certian features, etc. that would be unclear in just its normal color. Edit: here's a good example: _URL_0_ Normally it'd be very tricky to see which mountains were which sizes on a picture of Mars. but using false colo... |
Why are Gatling Guns called "Miniguns"? | The "Mini" in the name is in comparison to designs that use a similar firing mechanism but larger shells, such as General Electric's earlier 20-millimeter M61 Vulcan, and "gun" for a caliber size smaller than that of a cannon, typically 20 mm and higher."Minigun" refers to a specific model of weapon that General Electr... |
How is the blood from meat removed before it goes on sale? | Blood is removed by hanging the animal upside down and draining it. Muscle tissue contains very little blood anyway. Blood rots much more quickly and hosts many nasty diseases without the living host. Also it can it used extensively in the medical fieldthe animals are killed, then hung to let the majority of the blood ... |
How The Geneva Convention relates to war crimes. | The Geneva convention exists to stop war crimes. Lets say I was a nation, and I declared war on you. My troops massacre some civilians, or I use WMDs, The Geneva convention exists to stop that happening. Simply put, the Geneva convention exists to stop cruel or excessively damaging , and guarantees Prisoners of war fai... |
How do some people operate on such little sleep? | Being in the army for a while I'm use to running on 4 hours or less of sleep and still doing 16 hours a day. |
Why is YouTube getting steadily worse? | I'm sure there is someone who can explain it better but I'll try. Youtube uses DASH playback, it loads the video you watch in chunks. When you watch till a certain point, they will load the next chunk. What it does is save Youtube bandwidth so they won't waste it when you buffer the whole video but only watch part of i... |
Why do balloons explode, there is a loud sound like gun shot? | The air is under pressure in the balloon, because the skin of the balloon is tight. When it pops, the compressed air starts to expand. This generates a compression wave, what we call sound. Guns burn gunpowder in a confined space, and when the bullet leaves the barrel the pressure is released in a similar sound wave. |
What's happening when you want to sneeze but just can't get a sneeze out? | You become aware of the sneeze before it happens which puts you into manual mode, you consciously try to finish the sneeze but you don't know how. Kinda like when you start breathing manually but the difference is that you don't know how to sneeze consciously so you just stay with a half sneeze face and that feeling of... |
Why are they still making cars with manually rolled up windows? | They: * break less often * Are cheaper to fix/replace when they do break * Are cheaper to produce * Are cheaper to fit into a car Inexpensive maintainability isn't always the selling point car manufacturers go for, but it's certainly a selling point .Many people prefer manual windows because they are much less likely t... |
Why do some job applications require a questionnaire with the same "strongly agree/disagree" questions that make me feel like they're all trick questions? | They ask you the same questions in different ways to see if, after scoring, they were all answered the same way. "I don't lieIt's always important to tell the truthIf little Timmy asks if Santa is real, I tell him No"If you're not consistent, they score you lowerNot quite the same, but I remember I had a question like ... |
Why/how does covering a bomb with one's own body 'muffle' the explosion? | The most deadly aspect of a grenade is the shrapnel, the metal case of the grenade that is sent flying away at high speed, essentially thousands of little sharp metallic bullets. Jumping on the grenade is going to cause most if not all of that shrapnel to get sent into you, if any does manage to make it through you it ... |
How was the SHA1 encryption algorithm broken, and what does it imply? | The sha-1 collision attack exploits a weakness in the algorithm, allowing a input, that results in the same output, to be created far easier than brute force. The possibility of such an attack being used means that sha-1 is not a completely dependable method, and is essentially broken. With this attack, it is potential... |
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