Split (3)

train · 273k rows

title stringlengths 0 299	text list
Why do women generally prefer warmer temperatures?	[ "They have smaller bodies, smaller mass. When you are just skin and bones it is hard to stay warm.", "Women, on average, are smaller and less 'dense' than men, meaning they produce less heat within their bodies. They also lose that heat from their bodies at a quicker relative rate (due to their surface area:volum...
Why some applications in Google Play have a high rating ( > 4.0), despite being either a horrible app in general, a scam, or clickbait?	[ "Averages are easy to manipulate, especially given who tends to leave ratings.\n\nIf my company makes a clickbait app; and has 20 people working for it, it's going to take 5 0-star revies to lower the rating to 4 (because we all voted it up). If each of us makes 5 accounts to upvote our app; it will take 25 0-star ...
Why do a lot of Jewish last names have words like silver or gold or stein in them?	[ "According to the Christian bible, usury (the act of making loans for personal profit) is a sin. Being a banker was seen as being dirty. Jews had no such qualms and became successful money lenders, working in the finance and jewelry industries. Silver and gold and stein (rock/jewel) became part of their name, as ma...
How does a movie that is seemingly destined to be awful and fail (e.g. Dumb and Dumber To or Horrible Bosses 2) still get massive budgets and make it to theaters?	[ "Being awful =/= to being unprofitable.\n\n Huge movies like that are almost always money makers and studios, directors, actors, theaters, and investors all like to make money.", "Dumb and Dumber To has already more than paid for it's budget. So it didn't fail in the eyes of the investors. Whether you found it fu...
how scientists know what wavelengths are visible to different species?	[ "Two basic methods.\n\n1. They can directly measure whether the retinal cells respond to different signals.\n2. They can associate lights in different colors with the presence of food (the food is behind the door where the light is on), and see if the animal gets the signal or not." ]
why does alcohol burn small cuts	[ "Normally your skin protects you from corrosive substances like alcohol, but when you have a cut, obviously that defense is gone. Alcohol kills cells, your body doesn't like that, so it sends a type of pain signal to your brain, which your brain interprets as an unpleasant burning sensation." ]
Why does the Heinz ketchup packets from McDonalds and In N Out taste so much more different than that of bottle you would buy at a supermarket?	[ "Don't know for sure, but it's probable that in order to make the product sterile (giving it the long shelf life) the manufacturers might have to give the different packaging format different thermal processing (basically cooking time/temperature) or subtly different acidity. Also, it may be that the packaging subt...
How do hip-hop or dance producers sample only the bassline or only the percussion from an existing record?	[ "I used to do this for fun, it's not as difficult as one would think once you know what you're doing.\n\nVocals are usually mixed as a center (mono) channel while the instruments are usually mixed as stereo (left and right). With a little bit of work, you can extract the information that's the same in each channel ...
Why do we actually laugh? What IS funny?	[ "IT ALLOWS FOR THE STOMACH TO BE STRETCHED TO ENSURE MAXIMUM CAPACITY UPON FEASTING TIME. NEVER TRUST SOMEONE WITH A DEEP LAUGH.", "It is a signal to others that the thing is being enjoyed by the person laughing." ]
Why is swimming freestyle underwater so much less effective than swimming breaststroke, yet above the water it's the opposite?	[ "Each swimming stroke can be broken down into two parts - the pulling phase, which propels you through the water, and the recovery phase, which \"resets\" your arms so you can pull again. The difference between the two strokes is in the recovery phase.\n \nIn freestyle, the recovery involves flinging your arm up ov...
What keeps your veins in place?	[ "There are various connective tissues around the veins. The tissue is an elastic fibrous type, which allows your veins to bend and move around with motion, but also keeps them anchored in place so that they don't just flop around under your skin. \n\nSpecifically, the tissue is called 'fascia'." ]
Why do cats not get sick from licking their ass all day long?	[ "Cat saliva has antiseptic properties. Even their asses are no match. This does not mean that anything they find in their asses won't harm them. They're prepared for most things they would find in there.", "Mine did. He managed to lick a hole in his ass that went through to the inside of his body, \"communicating...
How does baking soda absorb smell?	[ "Lets be clear: Baking soda does not \"absorb smell\" in the way I think you are picturing it.\n\nWhat is smell? Odors, in particular bad ones like dog pee, are actually created by the growth of bacteria. What you're smelling is not the pee itself, it's the millions upon millions of bacteriums that live in it. Same...
What have we discovered aboard the International Space Station and why should we care?	[ "There are people claiming the ISS hasn't been worth cost given its returns, but I'd argue that's certainly not true. \n\nThe ISS is a very long-term project and even decades isn't how long it, and similar venture, will take to bear the real fruit\n\nThe biggest benefit the ISS has had is given real experience in k...
Why do people say that they want to have deep conversations but it turns out they don't?	[ "Nine times out of ten they're probably hoping one specific person will message them as a result of their post and aren't really interested in talking to anyone else." ]
EnergyStar Compliance, is it really a representation of a "green/energy friendly" product? Why should I take a product being EnergyStar Compliance into consideration when I am buying equipment?	[ "You would consider it if: you wanted to keep your electric bill lower, if you wanted to help reduce greenhouse gas production, you wanted to ensure the power draw for a building or room remained below a threshold.\n\nAn energy star model might have simpler installation too as it might have less waste heat or diffe...
How do radioactive elements and compounds reset their half life? Do they always just decay until they are gone forever?	[ "Depending on the substance in question, you might not.\n\nAll natural elements as we know them come from three sources: stellar nucleosynthesis, supernova nucleosynthesisand big bang nucleosynthesis. Stars fuse elements upto iron, and then upto nickel when they explode -- but generally, everything above that was a...
Why is it so hard to get comfortable and fall asleep at night, and then so difficult to get up in the morning?	[ "Your body and mind need time to slow down, just as a car can't go from 60 mph to an immediate halt. Take time in the evening to establish a wind-down routine in preparation for sleep. This can include some quiet time, perhaps a shower. Anything in anticipation of the coming night's rest. Also, a well-worked body ...
Why do some nuts, like cashews, contain so many calories?	[ "Nuts, like most seeds, exist to provide fuel for a new plant to grow. They're completely packed full of energy.\n\nWhile seeds like wheat are made up of carbohydrates, nuts are packed full of fats. Fats are much more energy dense than carbs so nuts are a high calorie source of food - that's why you routinely see...
Where did the "S" rating originate and why is it better than "A+"?	[ "It originates in Japan, the land of all the crazy things. Because it's known that if you get less than a C you have failed there would only be 3 grades you could get if you finished a level (as they often did not have +- modifiers), S class was introduce something difficult to give people a sense of achievement an...
How much of the price of gold is perceived value (as an alternate currency) vs it's value as an industrial metal? Are other "precious" metals similarly valued?	[ "Can't find my source now but ~10% of gold is used for industrial use the rest is in jewellery and financial use(~40% jewellery 60% financial. So A huge chunk of it's value is as you call it perceived." ]
Why do some countries wash their eggs and some don't?	[ "The US washes eggs due to the belief that the coatings and dirt on eggs carry disease\n\nEverywhere else does not wash eggs because they like to leave the egg's natural coating which keeps any bacteria outside the shell\n\nUnwashed eggs can be kept at room temperature, washed eggs must be refrigerated\n\nPeople in...
The end of Fight Club	[ "You are right op, Tyler could not be tricked. By saying \"my eyes are open\" the Narrator is indicating that he now fully understands that what happens to him will happen to Tyler. So he kills himself, thus killing Tyler.\n\nOf course he doesn't die - but that's not for lack of trying. If you go frame by frame ...
Why do you have to eject a thumb drive before removing it from your computer? How does not ejecting damage your computer?	[ "Imagine someone is writing on a piece of paper. By asking the computer to remove the drive you are letting that person finish their sentence and the writing makes sense to the next person reading it. \nBy yanking out the drive without telling the computer, you are ripping the paper from that person whilst they’re ...
Why is time distorted in space?	[ "'Why' is a bit of a tricky question to ask about knowledge such as this. We think they are related because that is the most elegant and consistent explanation for the available evidence.\n\nThe universe seems to work according to logical rules which we tend to describe as mathematics. Physicists had to figure out ...
Computers' difference in performance between multiplication and division	[ "The best algorithms we have for multiplying numbers are faster than those we have for dividing numbers. Informally, you might compare the time it takes to multiply two large numbers in the standard way and the time it takes to perform long division.\n\nFor this reason, if you need to make calculations run faster...
David Camerons deal with the EU	[ "Cameron told the EU he would stop promoting a \"Brexit\" if they made reforms in 4 certain areas. Yesterday Donald Tusk (president of the European Council) released a draft trying to find a compromise between Cameron and the EU. Here's what these 4 demands are, and the EU's response to them:\n\n1. Demand: Citi...
why as different races live in the same society will aren't starting to become more physically similar?	[ "Mexicans, whites, blacks, asians in America tend to have different social norms which keeps them from being interchangeable as relationship material. You need some common ground for political views, world views, economic status to relate on that level.\n\nSo to answer your question, the melting pot isn't so hot a...
What is actually happening when a single taste bud decides to stick way out and get super sensitive?	[ "Welcome to the wonderful world of inflammation.\n\nThe most common scenario where this happens is when you happen to have too hot a cup of coffee or soup, or eat way too many salty snacks without refreshing your mouth with water.\n\nIn scenario 1, the intense heat manages to burn part of your tongue, or atleast he...
How would the suicide net planned to be implemented on the Golden Gate Bridge and other similar structures work?	[ "A very large majority of people who jump off of structures like the Golden Gate Bridge and survive say that they immediately regretted taking the jump, and if they were to land in the net it would be unlikely that they were to try again. However, if you block off the sides of the bridge, someone's just going to fi...
Whats going on in our brains when we "snap" and go crazy?	[ "Sounds a bit like an [Amygdala Hijack](_URL_0_).\n\nIn the case of an Amygdala Hijack, what happens is that the brain sends sensory input to both the Amygdala and the Neocortex. The Neocortex is the thinking part of our brain, and the Amygdala handles a bunch of emotional things.\n\nNow the Amygdala will check if ...
Why is it easier to be angry and upset than to be happy and polite when you’re tired?	[ "The short simplified answer is that politeness and such things require more energy and computing power to generate than just being aggressive and defensive, which are more basic instincts. So when you're tired less energy is devoted to keeping up pretenses, so to speak." ]
What is the point of bail?	[ "> but if thsy were kept in jail wouldn't that havw better chances of stopping them from escaping?\n\nSure, but the point of bail is that you pay some sum in order to leave jail, and are incentivized to return at the appropriate time in order to receive those funds back. If you do not, you forfeit the money. \n\nIf...
Why is soaking a wound in warm salt water or swishing salt water around in your mouth good for combating infection?	[ "Soaking a wound in salt water can kill bacteria because it essentially draws the water out of the bacterial cells. However it's important to note that for wound care soaking in salt water is generally not recommended. This is because while salt kills bacteria it also kills healthy cells that are necessary for woun...
What's the difference between a car with a "2016 plate" and another with a 2015 plate?	[ "People like new things. In 5 years that 2015 car will be 6 years old. The 2016 will be 5 years old. Why would you buy the 2015 if they were the same price? Obviously you'd get a 2016." ]
How can a single radio frequency carry two audio signals (for stereo left and right)?	[ "A radio station is not 1 signal, it's 3.\n \nSince you are even asking the question, I assume you have a notion of the concept of frequency. Now, let us say that you have a radio station around 100MHz. What you will do is transmit a strong signal on the 100MHz wavelength. Not an audio signal, just a strong signal....
How does your body figure out when it's full?	[ "Your brain receives many different types of signals that tell you you're full including nutrient concentrations, glucose levels, external signals (such as knowing that an empty plate should mean you're full), and (most importantly) physical signals from your digestive tract telling you that it's full of food. The...
What do the laws recently passed in Montana, Texas, Utah, and Oklahoma about being Sovereign States free from the government actually mean?	[ "What laws? I'm not seeing any evidence of laws passed in those states that made them Sovereign States free from the government. There have been a few attempts by states to pass laws saying \"You know Federal Government, we're still in charge!\" but those laws aren't really binding in any shape or form.\n\nThe real...
Broadband Pricing Tiers — Business vs. Home	[ "One reason that business is more than home is because it usually comes with higher uptime guarantees, different (better) technical support and issue response times, and less restrictions (generally you're not supposed run a webserver on a home connection, although you can certainly do it from a technical standpoin...
If some humans have Neanderthal DNA while others don't, does that mean some humans are at least somewhat of a different species than others.	[ "The definition of species is indeed somewhat loose but most agree on the basic that successfully interbreeding and having fertile offspring means that you are part of the the same species.\n\nThis is why many people now think that Neanderthals should be considered a different subspecies of humans not a different s...
What would happen if 9/11 is revealed to be a conspiracy?	[ "It was a conspiracy.\n\nDo you mean \"a conspiracy within the United States government\"?\n\nIt would depend on who the conspirators were. If it was a rogue cell of CIA agents, they'd be prosecuted, various hearings would be held to determine how such a thing was possible, and there would be many early retirement...
Why do your hands stop working when you laugh?	[ "There's a reflex pathway, the H-reflex (Hoffman's) that causes muscles to contract. It is a deep tendon reflex measured as the \"finger flexor reflex\" Massage, tapping and other pressure of the muscle decrease the reflex. Boisterous laughter can make it subside almost completely. Have you ever completely collapse...
What happened in Enron.	[ "Courtesy of BBC News:\n\n\"Enron lied about its profits and stands accused of a range of shady dealings, including concealing debts so they didn't show up in the company's accounts.\n\nAs the depth of the deception unfolded, investors and creditors retreated, forcing the firm into Chapter 11 bankruptcy in December...
How do doctors get away with grossly overbilling insurance companies compared to cash customers?	[ "Medicaid and many insurances generally only give 1/3 of the asking price if they pay at all. This has forced doctors to inflate their prices just to get enough to cover their own expenses.", "Insurance company worker here.\n\nBilled charge to the insurance company at 3 times what they actually want is nothing u...
Why does your skin feel really sensitive when you have a fever?	[ "Fever causes inflammation, which is what causes the tenderness. Fever is your body's \"RED ALERT\" system designed to sort of burn up the harmful bacteria/virus. Low grade fevers are a great way to heal but anything over 101 F can start to get dangerous. Mostly because your body is using more water. Dehydration is...
How are the notes picked?(i.e. How did they determine what frequencies went to what notes?)	[ "From an older thread with a similar question: \n\n/u/TheloniusMonke: \nLet's start with what sound is. Sound waves are compression waves, which means that energy gets transferred from one chunk of matter (air, for our ears) to the neighboring matter in the form of pushing the particles slightly closer together (co...
Why did the Romans put olive oil on their bodies after bathing?	[ "Normally it was done before bathing, not after. They would rub on oil then remove dirt with a small hook. They would then rinse the oil off, then they would soak in the baths." ]
What qualifies as a religion under the freedom of religion protection laws?	[ "It has less to do with how old/established the religion itself is, but whether the religious practices infringe on someone else's rights. For instance, there have been a number of cases where parents opted to deny their children medical treatment and instead go for Christian faith healing, then were arrested for c...
if there are 30 people in a room all making the same noise at 10 decibels what would be the level of noise produced	[ "Decibels are logarithmic - for every 10 dB you go up, you multiply the volume by 10 - going up 20 dB multiplies the volume by 10 twice, or a hundred times the original. So we can see immediately that since you're multiplying the level of sound by 30, which is between 10 and 100, our volume increase must be between...
Why are fleas the size of a speck of ground pepper but they can jump so high?	[ "Part of the answer is the relationship between size and mass. If an animal is half the size, it's one-eighth the weight - so the smaller an animal is, the stronger it is in relationship to their weight. This allows very small animals to perform relatively amazing feats of strength.\n\nAdditionally, fleas have a ...
How a group like Lizard Squad could take down such a large money filled network	[ "They didn't hack it. They DDosed it. A 5 year old can DDos.", "They can't really defend from massive amounts of information flooding their servers. There is always going to be a point where they would shut down because many people sending all those packets of info to Xbox Live at once, combined with all the peop...
Why do many people see policing and military as necessary things to support with their tax dollars, but see a more subsidized healthcare system as a form of communism?	[ "Because everyone needs the police and the military. The rich and the upper middle class dont need subsidized health care and dont want to help fund it." ]
Why is it that I find my reflection somewhat attractive but dislike how I look in most photographs/videos?	[ "Your face is mirrored. You are accustomed to looking at your face in the mirror and have grown to like that look on the account of you seeing it every day when you look into anything reflective. But as soon as you look at your face in a photograph (which is how you really looks) your brain notices that something i...
If Amphetamine is a relatively cheap and non-difficult drug to produce, why does the Adderall brand cost so much?	[ "A for-profit industry that can set it's price for brand-name medications at any value they feel the market will bear." ]
I thought Ebola was totally incurable?	[ "The fact that we do not have a cure for a disease/condition does not mean that the disease itself cannot be overcome. There's no cure for cancer, for example, but people manage to defeat cancer fairly frequently.", "Incurable means there isn't a cure. It doesn't mean there won't ever be a cure. Lots of incurable...
Why are pennies still made when it cost more than 1.8 cents to make one?	[ "The purpose of making a physical currency is not for profit, but to maintain a medium of exchange which will make the economy liquid. The price of each currency unit to produce isn't particularly relevant.", "The penny has been phased out in Canada and we've managed better without it.\n\nAs for retailers, they s...
What exactly is a beer belly and how does alcohol cause it?	[ "Beer, while being an often time refreshing adult beverage, contains an alarmingly high amount of calories and carbohydrates. Beer, on average, has around 13g of carbs. The same roughly as a slice of white bread. A beer (356g), a can lets say, can have 154 calories. That's about 2 slices of white bread.\n\nIf someo...
the bleeding virgin Mary and the milk drinking Ganesha statue "miracles" from a scientific perspective.	[ "Not familiar with the bleeding virgin Mary; however, the Ganesha drinking milk works basically through capillary action. Basically that means that the surface tension and adhesion combine to lift the liquid. You can test this yourself next time you go to drink with a straw. Don't bother capping off an end, but dip...
Why do computer processing speeds continue to increase?	[ "Things have gotten a lot faster, really - in even the last 10 years, processor speeds have gone up by a pretty good margin. Now you can buy stuff that clocks in at like 3.3GHz, which would have been totally crazy back in the year 2000.\n\nBut I suppose you're talking about things \"seeming\" faster. Well, that's...
If space is a vaccum how does heat travel through it?	[ "Heat is a measurement of how quickly molecules are moving. Hot things have quickly moving molecules, while cold things have slow ones. Since a vacuum is empty (no molecules), technically heat can't travel through space.\n\nHeat is a type of energy. Energy can be transmitted through space in the form of electrom...
What exactly is inflammation and why does it contribute so heavily to our demise?	[ "It's actually an immune response. When your cells are damaged, they need your immune system to come in and clear them out. The damaged cells release a chemical that expands the nearby blood vessels to allow your white blood cells better access to do their job. The expanding blood vessels is the inflammation.\n\nSo...
Do other animals see in different frames per seconds than humans?	[ "Surprisingly, the answer is yes. Sort of. The phrase you're looking for is \"temporal resolution\".\n\n/u/Kitworks explains that unlike cameras, animals have no \"set frame rate per se\", and that's strictly true. However, what is true is that while you can watch a vintage black-and-white movie at 16 frames per se...
Sleep Difficulty	[ "Your circadian rhythm (internal clock) is messed up. Humans are instinctually inclined to rest at night and be active during the day. In order to sleep better, you need to start going to bed earlier. Try moving your bedtime 30 minutes earlier each night until you're going to bed at a normal hour. Also, I'm no ex...
What did Barcelona FCB just win? Does that team play in multiple leagues throughout the year? If so, are these the same players?	[ "Barcelona just won the Champions League (which used to be called the European Cup 20 years or so ago). In soccer, each country will have its own league - Barcelona plays in La Liga, which is Spain's national league. However, the top teams in each national league from the previous season will also qualify for a con...
Why do light things bounce, while heavier don't?	[ "Heavier things can bounce. A decent counter example to your proposal would be to compare a rubber ball to a crumpled up ball of paper of relatively the same size/volume. The former, while heavier, will bounce quite high; whereas the crumpled up ball of paper won't.\n\nThe difference is how the energy of the system...
Traditionally, why do Conservatives support Israel while Liberals do not support Israel?	[ "'Neoconservatism' is a branch of conservatism which deals with the creation and maintenance of popular social myths.\n\nDeveloped in response to the perceived failure of the civil rights movement to bring racial unity, the American Neoconservative movement promoted the myth of the Cowboy - that America was a heroi...
Why does flicking a small insect not kill it? Is the force not as strong as squishing it?	[ "It's mostly to do with mass. The less mass an object has, the easier it is to accelerate (so more energy goes to actual movement, and less to the object deforming.)\nInsects have very little mass, so they don't experience much resistance to acceleration (the flick.)\n\nAlternatively, squishing against a hard surfa...
How do we determine if an animal has feelings, is self aware, or is sentient?	[ "This is an interesting question and there is no single answer. It's not really a question of is an animal \"self aware\" or \"not self aware\" and more, \"how self aware\" is an animal. Even though it is a bit more complicated than this you can think of there being levels of self aware. \n\nThe standard test is ca...
Will a tattoo remain after a cut or gash on the tattooed skin heals?	[ "Depends how deep the gash is. Tattoos sit really deep in the skin. If the cut reaches that layer, then yes, it can damage the tattoo. If it's just a superficial cut that doesn't go deeper than the epidermis the tattoo should still look the same.", "From personal experience, I can tell you that if you get road...
Why Hasn't the U.S. Signed the Convention on the Rights of the Child?	[ "Because in the US, people under 18 can get life sentences in prison, which the Convention would prohibit.", "There's no appetite in the US on either side of the political spectrum to enter into any treaty that cedes sovereignty to the UN. Ratification requires a majority vote in the Senate, which would require ...
Do internet bandwidths really make a difference to ISP's?	[ "The ISP's would much rather simply allow everyone to use all the bandwidth they want. Usage caps and tiered plans are extremely unpopular, and are generally employed when you don't have the capital required to upgrade the whole system, so you're simply trying to make a deterrent to the highest users.\n\nI planned ...
Why is Latin not widely used anymore if many languages used today derive from it?	[ "It's not widely used anymore precisely because Latin-speaking people branched into separate, new languages instead.\n\nIt's a bit like asking why your great-grandparents are dead, if they have so many descendants. There's nothing unusual about that, if you think about it--and really, the more generations you get...
I love the film "The Shining" but I feel I need a better explanation.	[ "There's a lot going on. Can you be more specific about what you don't get?", "Is there something specific you don't understand because there's a lot of plot threads.", "So what are the things you don't understand?" ]
Sonic employees, how can you advertise hand mixed shakes yet tell people the machine is broke when they ask for a shake?	[ "I think you're being a little to literal with the term. It just means that it doesn't go into a shake machine like at Wendy's, McDonalds or BK." ]
Saliva, and how the body makes so damn much of it.	[ "Saliva has enzymes (proteins that 'do stuff') that are really useful. salivary amylase is an enzyme that starts the digestion of sugars. Lysozyme is an antibacterial enzyme that helps keep bacteria in our mouths from making us sick or making our teeth rot. Lastly, saliva helps keeps mucus membranes in our mouths a...
What is a carbohydrate and why do people go on no carb diets?	[ "Carbohydrates are sugars, some more complex than others. The more complex, the more effort they take to break down and digest, but the general rule is that they break down into simple sugars that the body can use for fuel very easily.\n\nCarbs are a necessary part of the diet, as they are the sole food that can b...
Why we prefer the flavor of unhealthy food? Why didn't we evolve to prefer good that makes us healthier/feel better?	[ "It we take, for example, just sugar: it's a very useful way to get energy very quickly. But in the natural world, sugar is very hard to come by, and refined sugar simply doesn't exist. It's only since we've been refining sugar on an industrial scale and putting it into absolutely everything that it has become a he...
Why can't a PS4 title be played in PC even though its designed & created in a PC ?	[ "Creating a game using a PC isn't the same as creating a game for a PC. Its technically possible to use a PC to make a ps4 game without ever having a version that will actually run on a PC.\n\nThe way it works is you have a ps4 devkit, which is a special ps4 for developers. That connects to a PC and allows the ...
Why do some reddit users delete their top voted comments?	[ "Like in a thread when the top rated comment got deleted? That's typically a mod stepping in and removing it for whatever reason." ]
What does the sun rotate around?	[ "The center of the Milky Way galaxy, which contains a supermassive black hole named Sagittarius A, which is about 1.6 Million solar masses", "The sun orbits around the centre of the Milky Way galaxy, which is just one of hundreds of billions of galaxies in the universe. The sun takes about 220-225 million years t...
teaching/learning robots	[ "imagine you have some inputs (sensors, energy), some internal nodes (stuff that can be connected together), some outputs (motors) and a simple test to \"score\" the result, f.e. how close you are to the desired result. now a computer connects everything randomly, and uses it as start state. now it keeps repeating ...
Why is Paris the city of love?	[ "Dammit, the etymology seems to unknown. Possibly a lot if it had to do with Napoleon's obsession with romance and celebrating it, but it also might come from a combination of it being \"The city of lights\" (thanks to its early employment of gas Street lighting for all major thoroughfares) and it being a common de...
How come games no longer have cheat codes?	[ "There's a number of reasons for this. Cheat codes were implemented in games for various reasons, all of which fell away in recent years.\n\n\n1. Cheat codes were often implemented for debugging purposes, with many games going as far as including a 'debug mode'. This stopped happening when development tools started...
What is the social language mechanic that caused the words "aggravation", "conversation", and "definitely" to be abbreviated in slang form as "aggro", "convo", and "deffo"?	[ "This is a type of Morphology called \"clipping.\" Common examples that are well-accepted in Modern English are:\n\nAd - > Advertisement \nGym - > Gymnasium \nRoach - > Cockroach \n\nThere are some truncations that are in the middle of the word, like Madam - > Ma'am.\n\nAs well, there are some clips that ar...
When I'm touching my skin with my finger, does my finger feel my skin or does the skin feel the finger? Or does it both?	[ "Both! There are some areas of the body that are more sensitive than others though. Lightly rub your fingers across your lips. You'll feel a lot of sensation on your lips but little on your fingers. Then run your finger across the bottom of your foot near the heel. You'll feel the touch sensation much more on ...
Why is every show involving a demon use christianity to exorcise the demon? What if the demon was Jewish or Muslim? Or am I just missing something?	[ "I feel like most of these answers miss the point.\n\nMost movies/shows you watch have Christian exorcism because Hollywood is a Western movie industry which makes movies mostly for the Western world. And the West is Christian, historically anyway.\n\nIf you watch shows from Muslim countries that have exorcism than...
Why do I get really tired and sleepy after an argument or when I'm sad?	[ "Getting sleepy is a defensive mechanism. If there's too much to deal with you can end up being sleepy. You are subconsciously trying to avoid what's troubling you." ]
How can different SD cards with same physical dimensions offer several different read/write speeds? Are they somehow wired differently or efficiently?	[ "They do have a different wiring(schematics) and newer chips. Imagine a 1Gb sd card as a single chip. You have to write each byte after previous byte. You can't write two bytes at the same quantum of time.\n\nNow, the easiest way to increase speed is to have two 500Mb chips combined through a controller that allows...
How come politicians run for US president even though it's clear to everyone that they will never ever win. Even I know it and I'm an idiot. What gives?	[ "In politics, attaining power through being democratically elected to a position of authority is not the only way to gain power. By standing for president (or Senator, Member of Parliament, party leader, ect), politicians are effectively 'putting their message out there', causing a stir in the political landscape, ...
How do geysers work? Also why are some so predictable and other's are completely random?	[ "Geysers happen when water is heated by a hot spot in the earth's crust. Water flows into a void, is heated, and steam and water rush out of the void rapidly. \n\nPredictable gysers are predictable because they have a low cycle time which allows many observations and the different variables can be estimated (the ...
What exactly does this new Student Loan Plan Obama signed do?	[ "President Obama announced an expansion of a program that helps student loan borrowers manage their debt, a White House official said.\n\nThe official said Obama will expand the criteria for an alternative repayment program, which caps monthly payments for certain federal student loans at 10% of a borrower's discre...
independent athletes in the Olympics	[ "In the case of 2012, it's actually handy because there are two examples of the type of situation that can arise. Three athletes come from the Netherlands Antilles, which was dissolved as a country in 2010 and was removed from the Olympics books in 2011. However the athletes involved were already in process to comp...
Why does the sound of flowing water sound different as a bottle is being filled up?	[ "Due to the bottle having a confined space. The air in the bottle being forced out by the water displacing it causes the difference in sound. Flowing water, like a river, does not displace air and therefore has a different sound", "As the water level in the bottle rises, the flowing stream has to travel less dist...
Why I should not be excited to invest in Cuba as an American?	[ "Because the Canadians, Brazilians, British, Spanish and Chinese have been there for years already and have locked down many of the key development deals and important relationships." ]
Why we get the sudden urge to pee when our body comes in contact with water, eg swimming pools, shower.	[ "When you come in contact with water, or even when you see some nice amount of water, your brain automatically thinks you are somehow going to ingest that water, and it cuts the supply of a certain hormone in your blood ([antidiuretic hormone](_URL_0_)). This cause your kidneys to increase the production of urine, ...
Why don't all States do proportional representation instead of winner take all in the electoral college?	[ "Since it goes state to state as far as rules my first inclination would be power. If you live in a state with a powerful majority party, it's in the interest of that states party to go for winner take all so that the party ,with it's deep reach in all districts, can try to coerce said districts to support the cand...
Is China still a communist country?	[ "Not by the general definition of communism.\nThe Government structure is very central to the one party and all laws and rules are based on communist philosophy, while the economic structure is not.\nBasically economy is driven by a very active trade system, while people living within the country are bound by the v...
Why do we find certain animals cute and certain animals gross?	[ "I think it has to do with certain features they have, like large round eyes, rounded faces, soft fur or skin and the sounds they make that are somewhat compatible with that of a human baby triggering a maternal or paternal instinct to love and protect the creature. \"Gross\" things probably have to do with things ...
How do TV Street Magicians work? If actors are used then why does nobody expose them online?	[ "Any magician employing actors to fool people with would get non-disclosure agreements signed by the actors and could pursue civil action (i.e. lawsuits) if they did speak out. So there is little to be gained from actors speaking out since people already know magic acts are trickery, and potentially a lot to lose l...
do screws used in surgery truly turn to bone? If so, how?	[ "There is a type of surgical screw that is made from polylactic acid and hydroxylapatite. The polylactic acid will slowly dissolve into your body and disappear leaving behind the hydroxylapatite which is a main component in your bones. In time your body will \"fill in the gaps\" left by the polylactic acid leaving ...

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