title
stringlengths
0
299
text
list
How is buying insurance not a waste of money?
[ "There's two reasons why most people prefer insurance instead of just putting away money each month:\n\n1. Insurance can pay out more than your fund will ever save up, or more than you'd ever actually spend on that policy. Look at a big car accident claim - you could be repairing the cost of two cars as well as i...
What exactly happens when an animal imprints on a human? Does it understand that its new "mother" is not the same species?
[ "For true imprinting, they won't recognize their own species later on. You'll run into this a lot of rehab facilities where human-raised wildlife imprinted as babies and then can't integrate into a flock/herd/whatever. They won't be successful at breeding or parenting. There are other animals that become socialized...
Is fresh water a finite source or is more created everyday somehow?
[ "It depends what you mean, there is definitely a finite supply of water full stop, whether it is fresh or not is a different matter as it can be contaminated and purified many times over by processes like evaporation. \n\nThe water you're drinking might have been peed out by a dinosaur once!" ]
How is it possible to cook while camping without being attacked by animals?
[ "Most animals are timid around humans. Even large predators like bears and mountain lions are usually hesitant to approach them. The reason being that any injury could very easily lead to infection or being too injured to catch prey and thus death. This is especially true of the people are in a group.\n\nHowever, b...
Explain the p=np problem LI5.
[ "Do you have a bicycle? Does it have a lock? If not, nag your parents to get you one, those cheap bastards.\n\nIf I told you the combination, how hard would it be for you to check if I was right? It's quick. Use the numbers I gave you and see if the lock opens. Easy! People have found a whole bunch of jobs that are...
What the fuck is wrong with r/The_Donald?
[ "r/News locked a thread/report about the Orlando shooter/shooting and that he was connected to ISIS. r/News locked the thread because there was a lot of people talking 'down' about muslim extremists. Mods on r/News basically didn't want any Muslims, who may be on reddit, to become offended. In addition to that, the...
Compared to most other developed nations - primarily those in Western Europe and Australia - why is the United States so much more nationalistic and proud of their military and country than their counterparts in the developed world?
[ "The citizens in Europe largely have a very ancient history with much of that as *not* that country. So, for instance, you're a citizen of the UK, but you're Scottish, too. And Scotland was around long before the UK. While Americans have many of those same roots, we're geographically separated from those places so ...
How do anti-discrimination employment rules affect states where you can be still be fired for no good reason?
[ "Actually, employers can sometimes get away with this. If they want to get rid of someone but can't find a justifiable reason for it, they can come up with a petty one and fire the person for that. Sometimes, they may turn to rules in the employee handbook and enforce them unfairly.\n\nHowever, there are still some...
Why exactly is Twitter considered to be going downhill despite it being in the top 3 of social media?
[ "Basically twitter is having less MAU (monthly active users) than they have in the past, they have been on a decline since Q4 2014.\n\nThe biggest issue is that their MAU numbers are getting inflated from smart phone usage. Do you have a twitter account, have the twitter app installed on your phone even though you...
How does the firefighters uniform let him go into burning buildings?
[ "Volunteer firefighter here. The other comments got fairly close. They are fire resistant, but not fire proof. The gear has two layers, separated slightly. (Think about wearing a winter coat with a liner.) The layers create an air pocket between them which protects us. If you are in a very hot environment and compr...
If banks simply pay me a small cut of the money they make with a mix of risky and "safe" investments, why should I put my money in a bank rather than investing it myself?
[ "The FDIC. If your attempts at investment go sour, you would lose all of your money. If a bank messes up, your money is insured by the Federal Government up to $250,000, so you lose nothing. There is zero risk with putting your money in a bank, but investing is always risky.", "The value of putting money in a ban...
What happens when food goes down the "wrong tube"?
[ "You have a flap in your throat called your epiglottis. When food or drink goes down the wrong way this prevents you from inhaling it. You then cough to try and relocate any food that's down the wrong tube back into your mouth to be swallowed.", "Well, as a speech therapist I can expand the comments above.\n\n/u/...
How do we know that marble is formed from limestone if all of the recognizable features such as fossils, pore spaces, and the distinction between grains have all disappeared?
[ "Firstly, metamorphism does not require original sedimentary fabrics and structures to be destroyed. Metamorphism is simply the alteration or recrystallisation of minerals in a rock in response to temperature and pressure. Marbles that experienced lower grades of metamorphism can still contain recognisable original...
What is WEB-GL and how does it do such sorcery as this?
[ "OpenGL is an API for accessing graphical hardware resources; on consumer systems this is generally a dedicated GPU. Web-GL is a Javascript-accessible API that can leverage OpenGL support in the system. Web-GL support is baked into all major browsers and isn't a separate plugin like Flash is.\n\nThe reason it run...
Why do businesses often lock one of the front doors to their storefronts?
[ "The doors are designed with only one lock, on the door which is typically open. The other door is held in place by pins at the top and bottom which are retracted with a recessed lever which is on the edge. The next time you pass through take a look, they are fairly obvious. The levers are such that they cannot be ...
Why do transplanted organs need a much more specific match than blood does for transfusions?
[ "Most of our tissues have what are called MHC proteins. MHC proteins are complex and are involved with a variety of immune functions, for example in the presentation of virus fragments to immune cells to trigger an immune response. Our blood cells do not have MHC proteins on their surface and our MHC proteins have ...
Light-Based Computing
[ "Instead of sending an electrical signal down a wire, which is received by a device sensitive to electricity, you'd shine light through optical fiber or across open space, and the receiving device is sensitive to light.\n\nComputers use TINY \"switches\" (transistors, in a normal electrical computer), they also run...
How is it that deep sea animals aren't crushed by the pressure of the ocean?
[ "Because they're the same pressure inside as the ocean depth is outside.\n\nAs a human, you're filled with gases at near 14.7psi and fluid in contained pockets. \n\nAdd 1000psi to the outside of your body and those pockets like your lungs and eyeballs will squish.", "Deep sea creatures have evolved to surviv...
How does a hand drawn animation company keep drawings of people, places, and things consistent with a big animation team.
[ "You are touching the surface on why hand drawn movies are so difficult to make and why the Disney productions were so loved.\n\nThey reuse the still after it is drawn once. If they need another angle the original still is used for reference. These stools are larger than the frame and you can move them with the sho...
What is SQL? Is it one of the simpler programming languages?
[ "SQL = Structured Query Language.\n\nIt is a language meant for getting/updating data in databases. An example command (so to speak) would be\n INSERT INTO table(col1, col2) VALUES(val1, val2)", "SQL is Structured Query Language\n\nIt is a set of standards for how to communicate with databases, much how HTML ...
how car insurance pricing works. I just switched companies and my price went from 201 dollars a month to 102 dollars a month for full coverage, how can such a large difference happen?
[ "I don't see the main correct answer here which is that apples to apples, a lot of companies give new customers really cheap rates, and then slowly raise them on you year to year. \n\nYou can literally apply to the same company you are with, exact same info, and 90% of the time you will get a cheaper rate. \n\nEdit...
Why did/does the US hate communism so much?
[ "The US was founded on the idea of a Open economy with strong individualism and individual rights. \n\nCommunism is basicaly the opposide where the economy and industry is state owned and planned and invidiual rights can be negated in favor of group planning. \n\nThis lead to strong pressure from industry leaders i...
before the age of smartphones how did taxi drivers receive details of a pickup request? And if they used a phone call from the dispatcher, how did it work before general availability of mobile phones?
[ "They used CB radios, like truckers have. Before that, there were special taxi stands placed throughout the city. These stands had phones that the drivers could use to call the dispatcher who would tell them where to go next." ]
How did the Chinese Civil War start?
[ "So in 1911, we had the first Chinese Revolution, it overthrew the last hereditary dynasty that ruled the Chinese Empire for about 300 years. In theory, they established a democratic republic, known as the Republic of China. But the new government was weak, and rich warlords undermined its authority at every step, ...
Why do girls generally find it harder to achieve an orgasm despite having way more nerve ending than men in their privates?
[ "It is hard to say exactly. They are still doing research into this. What we can say though, that when it comes to women having orgasms, there is a significant different between women of different orientations that we do not see in men. (heterosexual women 61.6%, lesbian women 74.7%, bisexual women 58.0%)\n\nThis ...
How does an spacecraft engine blast cause movement if there is nothing for the ship to push off from? Like if space is nothing, what is the engine propelling from?
[ "Imagine you are standing on a skateboard carrying a bowling ball. Now, throw the bowling ball away from you with all your strength. \n\nWhat will happen?", "It's from Newton's 3rd law, for every action, there is an equal and opposite reaction. So if a spacecraft blasts mass out the back, then it (the spacecraft...
Why is it that in blooming season, bushes tend to grow their leaves and become green before the taller trees around them do?
[ "There's two factors at play.\n\nFirst, it takes taller trees longer to leaf out. Plants that lose their leaves in winter store nutrients in their stems and roots, and then break them down and move them to the tips of their branches in the spring. Naturally, this takes longer for taller plants.\n\nSecond, bushes ha...
What does it mean to identify as socially progressive, but fiscally conservative? Don't social values determine government spending (ie. social safety nets like welfare, military costs, abortion clinics, etc.)?
[ "Not every socially progressive value requires the government to spend money.\n\nFor example, someone could consider themselves socially progressive because they are in favour of gay rights / gay marriage / gay adoption. Allowing that does not mean the government has to spend more money, so it is not at odds with t...
Why are materials like metals cold to the touch, whereas materials like towels never seem cold?
[ "Certain things are good conductors of heat. They're good at pulling heat from your body (which gives you the sensation of feeling cold).\n\nMetals are very good at it, whereas cotton is not." ]
Why do people on reddit have a need to have multiple accounts?
[ "Some people can't face the reality of their whole personality. Rather than take responsibility for *all* of what they're saying online by presenting and preserving the record of an integrated consciousness, they compartmentalize the different faces they show to different subcultures in real life, and assign each p...
Where does matter go once it goes through a black hole?
[ "The term 'hole' isn't accurate. A black hole isn't a 'hole' in any sense.\n\nBasically they're the remains of dead stars, that have collapsed under their own weight. The gravity they exert is strong that light can't move away from it so we can't directly see the object at the center of the Quantum singularity.\n\n...
Why does my ISP offer high download speeds but such low upload speeds?
[ "Your instincts are correct -- it's demand.\n\nAlmost all residential Internet customers download far, far more than they upload.\n\nSo, they could make it equal. But if the capacity of the connection was 20 Mbps, they could make it 10 up and 10 down. But what would happen is that people would very often max out th...
Why when websites are finished loading, the page scrolls up/down slightly so that you end up clicking on the wrong thing
[ "The last thing that loads on the page changes the location of the rest of the page. For example it might be an image which is of unknown size and the final configuration of the entire page isn't known. Once it loads everything jumps down to accommodate it.", "Because there's nothing loaded on the page, there is ...
a recount and how it could uncover discrepancies that were missed the first time?
[ "If you have ever worked in retail and had to close a register you know how this works.\n\nImagine you are closing the register, you count all the money and get $1284.00. But the system tells you you need $1295.00. So you recount. Turns out some ones and a five were stuck together, and there were some quite a few d...
How do firefighters know when fires are started by cigarette butts?
[ "Generally, certain areas will have been on fire longer than others. Sometimes that's indicated by the spread of the fire over time, other times that's indicated by which areas are burnt more than others.\n\nIf they can figure out roughly where the fire started, they can start looking at objects near there that pla...
When a US governor declares a state of emergency for their respective state what exactly happens?
[ "This allows the release of certain funds in the state budget to assist with recovery, and in some cases may allow for assistance from the federal government.", "Mostly it relates to emergency funds that the governor gets to tap into.\n\nIn the case of snow, it means that the state can spend more money on plowing...
Why is our saliva disgusting after we spit it out, though we swallow it all day?
[ "It's a natural mechanism. Once you have expelled something from your body you don't want it back in. You spit because you want to get rid of something that's bad for your or causing some discomfort.\n\nThe same way that you stay away from the smell of feces, saliva, snot and any other excrements are considered not...
If we somehow managed to cool the Earth's core down to room temperature, what would happen?
[ "the outer core would solidify and earth would lose its magnetic field. we would likely all die if not from the immense amount of solar radiation that would start to hit us in the oncoming years, Then it would be by solar winds stripping away the atmosphere over the next 100 years or so. Basically all life on the p...
when a police officer commits a crime why is the police department in charge of the investigation?
[ "there is a division in law enforcement specifically for this. It's called internal affairs.", "It's not *always* the police who investigate, nor is it always the police department the accused belongs to. It all depends on the nature and severity of the crime. Some crimes automatically get kicked up to another ag...
How do parabolic maneuvers work to create a zero gravity environment?
[ "It's not actually zero gravity, it's just *free fall* which creates the illusion of gravity -- the parabolic arc of the vehicle is the same as the plummeting path of its occupants, so they all seem to be neutrally floating with respect to one another.", "The parabolic arc is what an object does when acted upon b...
If reposts on reddit are not against any rules, and recycling content is a good way to keep the site popular, then why do people always complain about it so much?
[ "Have not been on reddit long but from what I gather is reposts are not a problem. It is when people repost them as their own to reap sweet Reddit karma." ]
Unsual family law question for book I'm writing
[ "You probably want to go to a legal subreddit, like legaladvice or something, depending on how realistic you want this to be. And you probably want to mention where this story is set (country and state/province at least), since that has a huge effect on what laws may apply. \n\nIf the birth parents' estate is still...
Why do some products that are "made with real fruits and vegetables" seem to contain none of the nutrients of the fruit or vegetable according to their nutrition labels?
[ "> Is it because of the processing? Is \"real fruit\" one of those FDA phrases that doesn't really mean anything? Is a term like that even regulated by the FDA?\n\nBoth, really. Processing takes some of the nutrients out of some foods. Your yogurt, for instance has blueberry jelly and syrup in it - which was made ...
What is an easy way to remember what a pronoun, adverb, compound, etc is + other language & writing tips?
[ "As for the 3 in your title, there are pretty easy language features in the words themselves.\n\nPronoun = Proper + noun. Proper refers to names, places etc. etc. \n\nAdverb = Adjective + Verb. Usually 'ly' words like slowly, quickly (it is a verb that describes).\n\nCompound = 2, like a compound in chemistry, or c...
Why/how did taxes become so complex, how come a simple tax, like 30% of income never took root?
[ "There are SO MANY circumstances where things aren't as clean-cut as you seem to be insinuating, and I think you started to answer your own question by mentioning tax breaks for families. \n\nWhat if 30% would make your wage unlivable? There has to be rules in place such that a tax isn't crippling. Do the rules hav...
How does Google get the money to drive Google Map cars all around the world without getting anything in return? What do they get from doing all that work and from all those expenses?
[ "You have to remember that although Google has its finger in many technological pies, the vast majority of its income still comes through selling advertising. And to be a world-class multi-billion-dollar online advertising broker requires you to hold as much data as possible on the people who will be viewing your a...
Please eli5 why does it take my printer a full 5 minutes to cancel a scan when I push the cancel button?
[ "I'm sure there's a technical answer, but the long and short of it is printer software is terrible and that is because they sell the hardware for nothing and make their money on the ink.", "You see, printers speak a different language and they are really bad at reading or speaking incomplete sentences. So when yo...
Why is there no truly reliable contraceptive for men?
[ "Condoms exist and are a pretty reliable contraceptive. What sort of 'reliable' are you going for?", "Most hormonal contraceptives (pill, patch, shot, etc...) work because the female reproductive system has a built in on off switch that is controlled by hormones. You know it as a woman's monthly cycle. \n\nBirth ...
How does saving the receipts from all of my various transactions help me?
[ "If you do it correctly, you can use a lot of things you buy not just at home but also for your business, making their purchase a deductible business expense. \n\nFrom having a home office, to storing work materials in the garage, to purchasing stuff at Lowe's or Home Depot or Office Depot, to the miles you drive y...
How do people determine the artist of a song and the featured artist of a song?
[ "If you were making an album and invited me to sing parts of a song on it you'd be the artist and I'd be the featured guest. If it was my album and you came to rap part of a song I'd be the artist and you'd be the feature. It all depends on who is releasing the song as part of their catalog." ]
How medieval people were able to translate languages they never came across. For example japanese.
[ "It is more than likely that there was a lot of pointing at things and hoping the word was said, for example; I am one of the first Westerners to come across Japan, I land in a port and meet with a local, I point at a dog and say \"dog\" the Japanese person may then respond, \"Inu\" thus the word for dog was shared...
The Bolshevik Revolution.
[ "The Bolsheviks were an organization of radical communists in Russia during the early 20th century. The leader of the Bolsheviks was Lenin and other notable Bolsheviks were Stalin and Trotsky.\n\nRussia, at the start of the 20th century, was an absolute monarchy ruled by Czar Nicholas II. In 1905, war broke out bet...
Technological unemployment and the possible impact on society
[ "The basic idea is that, as machines get better at doing more and more things, they will start to reduce the need for human workers or replace them altogether. For example, if self-driving cars catch on, then we won't need nearly as many truck drivers, taxi drivers, and so on. That will lead to a lot of unemploye...
What is the purpose of the 4 digit extension on zip codes?
[ "In many cases, the +4 can localize not just to your block, but to the correct side of the street.", "In 1983, the Postal Service expanded it to create the ZIP+4 system, tacking on an extra four digits at the end of the old codes. These new digits identified an area—like a group of apartments or office buildings—...
Why are 'of the year' awards not at the end of the year?
[ "\"Of the Year\" awards are typically at the end of the year, and are given by a third party (reviewers, magazines, award committees, etc.)\n\nThis is a case of the publisher/developer giving themselves the title in the game description as a marketing tactic. It's nothing more than their opinion." ]
Why is that hot-spicy sensation exists at the anus during diarrhea?
[ "This question concerns one of the more frequently asked topics on ELI5, so it has been removed. Try the searchbar!\n\n\nIt's okay to re-post questions, but please indicate that you did a search and that previous questions/answers didn't help you understand.", "Not everything is digestible in food. What's left in...
How do balding people still manage to have a full beard?
[ "The first law of hairodynamics states that male adult hair can never really be created nor destroyed, only transferred. This is what happens to balding men - they lose hair atop their head, but the hair accumulates in other regions. It could manifest as beard hair, an unruly chest forest, a few curly nostril foll...
Why are the confederate monuments a problem now and not while Obama was in office?
[ "This wasn't something that was decided at the federal level; most of these statues had people voting in local elections or voicing their opinion at things like town hall meetings and saying that they wanted those statues out of their communities; It seems that over the last 8 years, public perception of those stat...
if corn just goes straight through you how does it give you any nutritional value along the way
[ "It doesn't go straight through. It's a partial myth. There is a *chance* that the hard cores of the seed pockets (The yellow \"berries\" on the knob) don't get digested properly, but especially if you break them by chewing on them or when you use corn meal to bake things your body can easily digest the mass. Also ...
How can charities, like Cancer Fund of America and Kids Wish Network, give less than 5% and still call themselves a charity?
[ "They don't \"keep\" any of the money, but they sure do have a lot of expenses to pay out. That CEO for example works really hard at collecting donations, and it costs a lot of money to rent space in his posh home. So most of the money goes to \"admin\" expenses.\n\nMany celebrities have this same problem. At one p...
Why do we get restless when excited?
[ "Adrenaline - your brain sends a signal to release the hormone adrenaline from your adrenal glands which in turn speeds up your heart rate and breathing, and prepares your muscles for fight or flight, leaving you feeling restless." ]
The Big Bang Beginnings
[ "scientists do not yet know how the big bang began.", "This is a very fundamental question, and very broad. Physicist can't tell you exactly what happened during the Big Bang for now. What we do have are very well thought out theories that agree with our observations and models of the universe.\n\nBasically we ta...
If i drink a considerable amount of water 0.5L+ mid training (aerobic training) I feel like my energy is cut in half for the next 5 minutes. Why is that?
[ "First of all you are now 0.5kg more heavy but your body also has to divert some extra energy to your digestive track. Even if it is for just a few minutes", "Processing liquids takes energy. You can see this if you do steady state exercise like running on a treadmill or an exercise bike. I try to take about 0.15...
How can anxiety/depression be passed down from parents?
[ "In order to make that statement, you have to first prove conclusively that we know exactly where depression comes from. We don't. At best, we can say that a constellation of factors determines depression, and genetics are one factor of many.\n\nBefore people go nuts on genetics, remember that:\n\n- \"Family\" fact...
Is someone more skilled at something if they learned it during developmental years?
[ ". I would generally say yes the younger you learn a sport the better you will be. A parallel that makes me wonder is a 2nd language. I was just listening to \"stuff you should know\" podcast and they mentioned how is it much easier to learn another language in grade school rather than high school because the bra...
How is capital made?
[ "Robinson Crusoe making a stick with a hook to harvest coconuts instead of using the same materials to reinforce his hut is making capital instead of consumer spending. You make capital by deferring resources into the means of production not consumption. The stick with the hook on it took time and wood that could h...
Why does caffeine make me poop?
[ "Caffeine is a stimulant that speeds up the movement of the colon." ]
What NATO is, who controls it, and why it is in Libyra right now?
[ "NATO is the North Atlantic Treaty Organization is a very large military alliance.\n\nThis page lists the members:\n\n_URL_0_\n\nEssentially they all agree to defend one another if attacked. They also sometimes take part in more offensive measures against other nations, like currently in Libya." ]
The ruling that just happened regarding Fanduel and Draftkings
[ "The New York Attorney General declared it as gambling and doesn't want the two sites taking bets from New York residents. The site has always been a mix of gambling and fantasy. Here's the full article _URL_0_", "It is illegal to gamble on sports in the United States (with some high profile exceptions). There ha...
Why Are There 660 Executive departments In The US Government?
[ "Congress has the power to create executive departments. Over the last 230 years they've created a variety of departments to handle different things. If there's a specific department you think is wasteful, and unnecessary it would be easier to answer your question.", "There are only 18 executive departments in th...
What do the Watts and Volts mean in a 12v 5w water pump and a 12v 20w solar panel respectively?
[ "It means if you connect the pump to as 12V source, the pump will draw 5W of power. The solar panel rating means that the panel is capable of delivering 20W of power at 12V. So if you connect the solar panel to the pump, it'll run. \n\nCertainly you will want to make sure this stuff is wired to code and has all ...
I hear a lot of good AND bad things about e-cigs. Can someone just lay down the facts about them?
[ "Here's a list of all the research conducted on ecigs. Take a look and form your own opinion. That article the other redditor posted is sensationalist trash.\n\n_URL_0_" ]
Can you swim after you eat?
[ "It's perfectly safe. Your body won't go, \"Sorry arms and legs, it's digestion time,\" and redirect blood to your intestines. That's bulldust.", "If you can already swim, then you will still be able to swim after eating. The issue with swimming after eating are just like doing any physical activity after eatin...
how WIFI works?
[ "1. Wifi works through a certain kind of electromagnetic waves. Visible light is another kind of electromagnetic wave: to give you an idea, you could put all the kinds electromagnetic waves in a line: if you put red down and violet up(and all the other colors in the middle), under red you would have infrared radiat...
why do us humans swing our arms when we walk?
[ "To maintain balance. \n\nEDIT: Swinging arms stabilizes the motions of walking and also actually saves us energy (as opposed to keeping them rigid)." ]
What happens if an undocumented/illegal immigrant/visa overstayer refuses to tell the police/immigration department where they are from?
[ "Once they ran your finger prints you'd be deported with either a ten year or lifetime travel ban to the US. If you didn't say a word and your fingerprints came back inconclusive you'd be incarcerated until they could verify your identity. And they'd be pissed.", "I know sometimes with Latin American immigrants t...
Why can't an ostrich fly?
[ "It's GGGGGGGGGrandparent stopped needing to fly. Other body parts changed over time to support running on land rather than flying. Evolution." ]
If deserts were former oceans, then what is stopping current oceans from turning into deserts?
[ "The continents consist of less dense minerals. Granite is less dense than basalt. Cool basalt will sink into lava. It is more dense. The continental minerals will stay above lava. \nWhen there is not much ice in the world the ocean levels are high producing shallow seas above the continental rocks. When ice sheets...
How did we determine which parts of the brain actually are the areas that deal with certain emotions, or how we think, etc?
[ "In the high and far-off times we waited for someone to have survivable brain damage and found out what they couldn't do after estimating where the [tamping iron](_URL_0_) passed clean through their brain.\n\nMore common these days is a thing called fMRI that uses a very high powered MRI scan to see what areas of t...
why is it brighter out at night with snow on the ground?
[ "The snow scatters light from all kinds of sources (moon, stars, streetlamps, etc) better than grass or pavement when there is no snow. This means more light reaches your eyes." ]
smoking is uniformly banned on planes, so why do all planes have no smoking lights just like they have seatbelt lights?
[ "Not all aircraft are sold for commercial airline use. Some are used by private companies and they may not ban smoking.", "Many were probably built before smoking was uniformly banned. But I'm not sure if that explains their presence in new aircraft." ]
Photosynthesis (Specifically the calvin Cycle)
[ "Step 1: Carbon enters the cycle as CO2\nStep 2: An enzyme adds RuBP forming 3 unstable six-carbon molecules\nStep 3: The molecules break into six three-carbons molecules (3-PGA)\nStep 4: 6 ATP turn into 6 ADP + 6P (T= tri, D= Di) You are taking a P out.\nStep 5: NADPH turns into NADP+ ATP and NADPH from the light...
If the human brain was a hard drive, on average how much usable memory would it have?
[ "Its not something you can accurately measure because of genetically inherited knowledge. But for short term memory its not very much, say maybe 100gb. Long term memory can store maybe 2 - 10 terabytes. Its important to remember (lol) that long term memory is highly fragmented. maybe only a few megabytes of its ori...
why we don't raise more bison instead of cows
[ "Bison are very difficult to corral and domesticate. They're more aggressive and freaking huge. So pretty much, yes to all of those reasons.", "\"First off, purchasing buffalo for breeding stock costs a bit more than beef. Second, it does cost more for buffalo fencing and facilities than beef. Thirdly, processing...
Why do some TV shows block out manufacturer logos on cars when it's obvious the car is a Volkswagen, Toyota, Ford, etc. Same goes for drinks like Budweiser or Coca-Cola, the name is either blocked or the logo facing away from the camera.
[ "Because the networks are in the business of selling advertising. It's harder to sell ads to Pepsi if the program shows Coke cans for free.", "There are several reasons:\n\n1. The brand might not want to be associated with the show.\n\n2. It's free brand recognition advertising for the brand.\n\n3. A sponsor (bra...
Why does a dead battery in a car get recharged if you just jump it and leave it running ?
[ "Your car has a system in it called the alternator, which is essentially a generator. It takes some of the energy from your motor (which runs on fuel) and converts it to electrical energy. The alternator, among other things, keeps your battery charged.\n\nYour battery runs low when you do things like leaving your h...
When someone creates a password on a website, where is that password stored?
[ "Ideally, the password itself is not stored at all - only a hash of it is. But that hash (or the password itself, if it's a less-than-ideal setup) is stored in a file or a database on one of the machines that make up the technical infrastructure for the site you are creating an account on.", "Short answer: The ac...
Explain the syntax of the "Darmok and Jilad at Tenagra" dialogue, please?
[ "Tamarians speak in metaphors, as explained in the episode “Darmok” of TNG. As u/xeno_man said, the metaphor in this case related a story of two travelers who met at a certain location and overcame a great hardship. Other metaphors given in the episode refer to parley, attack, fast travel, and cutting off communica...
Why can't I re-create something I imagined exactly?
[ "Need more XP in artistry and executing your vision. It takes a lot of time to get really good at that, and to be able to coordinate what you're thinking with how your tools work and what you can do with your tools. \n\n-Dali painted [this](_URL_1_) when he was 66. Here are some people next to it for [scale](_URL_0...
what exactly does a database do?
[ "A database is just an organized collection of information -- it can be as simple as a written ledger or as complex as a warehouse full of computers.\n\nEvery organization has information it needs to be able to store and access readily -- databases house said information. Pretty much every web service you use has a...
When the tide is high on one coast, is it low on the opposing, parallel coast?
[ "The tide will be high where you are as well as the opposite side. It will be low between that. This is a little too simple though, because both the sun and the moon are affecting it. Sometimes you'll see a complete tide cycle with little actual change, sometimes it's a huge swing, just depends how the two are inte...
How can we differentiate the tastes of so many foods with only five flavors?
[ "A large part of tasting something involves your sense of smell. Your nose can differentiate between (an estimated) trillion different smells.", "By far the most influential part of the \"taste\" experience is not done by the tastebuds in the tongue but by the olfactory bulb in the nose. It is the analysis of mol...
Why did the USA kill Osama bin Laden instead of capturing him?
[ "If captured, it would have became a decades long media show and political and ideological fight over what to do with him. This prevented that.", "What Americans will tell you; He killed thousands of people, blah blah blah.\n\nWhat the rest of the world will tell you; He got on America's bad side when only a few...
Increased efficiency and automation have been eliminating jobs for thousands of years (from the creation of aqueducts to the invention of computers and internet). Why is it such a fear now?
[ "Always Follow The Money. Logic says that workers, ordinary folks, should be the ones fearing automation. \n\nBut the articles I've seen spreading fear about automation causing massive unemployment seem to originate at media organs that serve the financial industry. And the financial industry serves the wealthy. So...
How do scammers from India get a hold of phone numbers from United States and Europe?
[ "You can purchase huge databases of names & numbers from marketing companies. Or you can look on torrent servers for the same for free. Or you can just sequentially wardial numbers. Out of all of the scam calls I've gotten over the years, only one or two have actually used my name in the call.", "In the even...
Why isn’t flint Michigan fixed yet?
[ "Politics, and logistics. \n\nAnd before anyone says it, parties are irrelevant. The crisis started under a city council comprised entirely of Democrats. And when it first got really bad (like, 100% undrinkable), they continued to do nothing, and actually rejected offers and proposals to fix the problem.\n\nAt thi...
Why do soft drinks (ie: sprite coke) bubble like crazy when sugar is put in?
[ "The rough surface of each sugar granule provides many *nucleation sites,* places where the dissolved CO2 can come out of solution.\n\nSame reason the bubbles tend to form along scratches or rough patches inside yer glass.", "For research purposes (okay, pure curiosity), why are you adding sugar to a beverage alr...
Why is it that hospitals can charge me an absurd amount without insurance, but with insurance those same numbers come down significantly? Isn't this discriminatory pricing?
[ "There's no law against discriminatory pricing as long as you aren't discriminating based on protected criteria (race, sex, religion, etc.).\n\nPart of the reason insurance companies get lower rates is because hospitals know they'll get paid. If you don't have insurance, it's sort of a gamble to provide treatment ...
Why is it called the glove department?
[ "It's called the glove *compartment*. Meaning, quite literally, it's a place where you can put your gloves when they are not busy keeping your hands warm.", "Driving gloves used to be a thing. In the days of early, open-top cars, you would wear gloves to keep your hands from getting cold/numb from the air rushing...
Why do simple art pieces sell for so much money?
[ "I think there are four layers to this.\n\nThe first is that some people really like simplistic art pieces. Sometimes they like how it looks, sometimes they enjoy the message (a contrast against an overly complex world, for example).\n\nSometimes people like to buy expensive things to show off that they have the ab...