Split (3)

train · 273k rows

title stringlengths 0 299	text list
What's the difference between intolerant and allergy. Why can't it be peanut intolerant or lactose allergy?	[ "Allergy is when your immune system is the issue, intolerance is when it's some other body issue like incorrect digestion or wrong chemical pathway. A milk allergy (which is rare) would be your immune system attacking milk like it was an intruder. lactose intolerance is your body being unable to digest milk sugar w...
- Would meat rot in space?	[ "Some bacteria are anaerobic, i.e. they do not need oxygen to survive. So those would continue to cause the meat to rot in space, yes. However it would be much slower, as all the organisms that need oxygen to live like aerobic bacteria or yeast would not be capable of life.", "How big is the meat comet? Does it ...
What is that sensation you get in the jaw/mouth when you have not eaten anything is a while and why does it happen ?	[ "As soon as you think of food or begin the process of eating something, the body goes into 'digestive mode' and begins the secretion of saliva, gastric juices and other digestive juices. \n\nThere are 3 major pairs of salivary glands in the mouth. The parotid, submandibular and the sublingual glands. Saliva contain...
Why does your brain not mute chronic pain?	[ "Pain serves a purpose, it exists to limit further damage, and anything which 'removes pain' is a very risky proposition. If you're ignorant of damage, you may continue to damage yourself, and that can be anything from inconvenient to deadly.\n\nEvolution itself isn't really perfect or anything, it doesn't have a g...
What are "whale trades" that JP Morgan did in London and lost $$$?	[ "JP Morgan had a trader in London, Bruno Iskil, that was known for making extremely large bets on the stock market using very complex ways of making trades. Bets so complicated even his bosses had no idea what he was doing. The trades themselves involved something called credit default swaps, which are bets that ...
How do Majors and Minors in US colleges work?	[ "You take individual courses, such as intro to computer science and so on, each major and minor will have requirements so if there is some overlap or you can cope with the course load you can double major. The major is the focus of the studies, a minor is a semi-focus, not as much as a major but not just a regular ...
Why aren't "Ask..X" Subreddits more famous than the outdated Yahoo answers?	[ "Have you seen the answers on those Yahoo forums? My god it's some of the worst misinformation I've ever seen.", "Because [these](_URL_0_) have a much greater entertainment value." ]
Mechanically what is the difference between a fixed- gear & single-speed bike?	[ "I write as a rider of \"both.\"\n\nTechnically, a \"fixed gear/fixie\" is a single-speed, but slang and marketing has created the distinction you make. I will explain this distinction. \n\nFixed gear bikes, which are raced in velodromes and ridden on the road , do not have a free wheel mechanism in the hub of the ...
The Holographic Principle and String Theory	[ "I'll link you to a similar concept, and before everyone jumps all over my shit for this... I will make the disclaimer that I am NOT an expert BUT, this is a pretty good explanation of dimensional projections in a general sense of the word and may help OP with tackling the abstractness of string theory and the newe...
The difference between Holland, the Netherlands, Dutch people, etc.	[ "Holland is north and south Holland within the Kingdom of the Netherlands, whose people and language are Dutch." ]
Why are concussions in the NFL so frequent with players using advanced helmets vs rugby players using no helmets?	[ "Blocking. It is legal in NFL, it is not legal in Rugby. In NFL and other American Gridiron leagues, every player on the field is a valid target for a hit. Everyone is always running full speed into everyone else. \n\nIn rugby, only the person who is currently in posession of the ball can be hit. It is a foul to to...
The Mexican - American War and what was the role of Texas	[ "The short version:\n\n\nTexas breaks away from Mexico.\n\nMexico isn't happy but got its butt kicked in a lot of big battles.\n\nTexas joins America.\n\nTexas, as a state has a disputed boarder with Mexico. Neither America, nor Texas, nor Mexico can agree where the boarder is.\n\nSome small fighting happens around...
What technology is behind HDR TVs?	[ "Copy/paste from my comment over at /r/hometheater: \n \nThere are 3 main things HDR adds to regular collection content:\n \n1. Wide Color Gamut. A color gamut defines the max saturation a color can have, a wider color gamut means more saturated colors can now be captured and reproduced (Note, this is not th...
Why do my eyes sting after waking up if I didn't get enough sleep?	[ "This may be because of the [lacrimal gland,](_URL_5_) located just above the eyelid and just below the outside of the eyebrow. From under the skin, this lumpy-looking gland makes tears that lubricate the eye surface, keeping it damp, glistening and healthy. It’s also wired to the brain.\n\nIt's related to sleep. I...
What makes the TSA worse than the security services that existed in the US before 9/11, or the security services that currently exist in other developed nations?	[ "The majority of complaints made by non-paranoid flyers is pointless banning of many everyday items through security checkpoints, and that these rules differ in enforcement from airport to airport.\n\nNail clippers, nail files, scissors, water bottles (both full and empty), knitting needles, certain lighters, and s...
What happened to Maverick and Goose's F-14 that caused it to go into a spin and lose control in Top Gun? Is it plausible?	[ "When Iceman pulls away to let Maverick take the shot, the jet wash from the engine disrupted the airflow into one of the engines of Maverick's jet. Because of this the engine had a burnout, meaning that it stopped working. Because of this, the plane was not getting an equal amount of thrust. This caused one side o...
What is happening when I accidentally crash an app or a program simply by clicking on the screen or clicking the mouse button when the software is loading?	[ "Not really 'stress', more likely you caused a sequence of events to occur which the programmer never thought of and never planned for.\n\nHere's a possible scenario (warning, simplifications coming here):\n\nSince the programmer knows how they expect the program to work, they might wait patiently for all the loadi...
Why are the bonus features disappearing from DVDs?	[ "Cost cutting and probably user feedback. In an age where people are happy to pay for a stream / rent a stream and you just get the film for a set period, studios realise that the effort in producing such content isn't cost effective and isn't really demanded. Plus they've got to pay people to produce the addition...
Why are noises like scratching a chalkboard or styrofoam squeaking and others so annoying to alot of people?	[ "An audiologist or a acoustical engineer could explain this better, but basically the human ear is shaped in such a way that it makes higher pitches (between 2 and 4 kilohertz) sound louder and it's literally painful for a human to hear these pitches above a certain volume.\n\nThe reason our ears evolved to be sens...
Why do we have to open window shades in an airplane during landing and takeoff?	[ "The cabin crew should know the answers.\n\nFor emergency purposes:\n\n1) cabin crew can see out the window to better assess the situation should one arise.\n\n2) Your eyes are already somewhat adjusted to ambient light if you have to evacuate following an incident\n\n3) If there is an emergency landing and the eme...
Why is Every Program not Multi-Platform when Programming Languages Are?	[ "Because there are details of how the programs written for all the various OSs work. Say you're writing a windows program. You're not going to write every last bit of code for it, you're going to use various windows APIs to access the file system, draw things in the windowing system, access the graphics system us...
Why are people so adamantly against Japanese anime dubs, particularly English, and prefer subs?	[ "In order to sub or dub a foreign work, you first have to translate it.\n\nIf you are making subtitles, you then just chop up the translation and set up timings so that the right bits of the translation appear at the right time (and perhaps put in some fancy typography for fun).\n\nIf you are dubbing, you then have...
What would happen if everyone took all of their money out of a bank simultaneously.	[ "[It's called a bank run](_URL_0_). And basically, the bank would have to borrow more from somewhere else, like another bank or from [the federal funds](_URL_1_). Banks don't just let your money sit in a vault; they take it and invest it, or loan it out to people so that the money grows. So they don't have enough c...
Why are most studio albums between 40-50 minutes long? Is thay an industry standard?	[ "I think it's probably mostly tradition.\n\nThe LP has a maximum playing time of 45 minutes.\n_URL_0_\n\nThe CD has a maximum playing time of 74 minutes.\n\nSo it makes sense that most studio albums would be within those ranges. But since vinyl is making a comeback, it would make sense for albums to be in that len...
How do testicles make sperm?	[ "[This diagram can show what I'm talking about better than I can explain it, but I'll give a super basic answer](_URL_0_)\n\nBasically, your testicles contain stem cells, which can continuously divide to produce sperm. The stem cell divides, and one of the two new cells is activated to become a sperm, while the oth...
The "Greedo Shot First" Controversy	[ "There's a scene in the first Star Wars (A New Hope, episode IV) where Greedo, a bounty hunter, tracks down Han, who has a price on his head. In the original version, Han shoots Greedo first, which establishes him as kind of a badass. In the special edition released in the 90s, George Lucas felt the need to change ...
Why is it that after I exercise parts of my body (namely the fat parts, i.e. stomach/butt) are noticeably colder than the other parts of my body?	[ "Blood is being directed more to your muscles, but your whole body is sweating. So the fat parts are being actively cooled by evaporation, but not heated as much by blood circulation." ]
basic computers. How can circuitry help us do math?	[ "[This](_URL_0_) video of basic mechanic binary calculator may help. Understanding of binary numbers is not required, but helps.", "there is no simple 5yr old answer to this question, even in its most basic form it requires knowledge of transistors." ]
How do some people become the mod of dozens of subreddits?	[ "You'd have to ask the people who made the decision to add them, we don't know. The thought process for each individual mod invite was probably different.\n\nI'm not sure but it's also possible that they did stuff like CSS work. There are some people who do design and CSS stuff for lots of subreddits so they have m...
Why is Russia now invading Ukraine? What are the economic and political advantages of this despite clear outcry from the international community?	[ "Long post:\n\nNot everyone was happy that the USSR broke up, Putin among them. He was a KGB agent, which is important because there was a certain way people in government in the USSR were expected to think and act. Words like \"Facist\" there often meant \"Non-state sanctioned communism.\" You'll hear Putin and...
car guys, what's the draw to e85 gas?	[ "In a performance application the benefit comes from it's octane rating. Most e85 is between 100 and 105 octane, quite a bit higher than premiun fuel. The downside is that it can eat up fuel system components thay are not designed to handle it.\n\nA higher octane fuel is more resistant to pre-ignition so more agr...
Why has the USA's Money Supply (M0) increased so much since 2008?	[ "M0 is the measure of monetary reserves, which the Fed creates when it makes asset purchases. The increase is mostly due to it's large scale asset purchases, ie. quantitative easing. \n \nGrowth of M2, or broad money, has been much more subdued as shown [here](_URL_2_). Also the velocity of M2 - ie. the rate at w...
Why do I see things move slower and in a higher frame rate on the edge of my visual field than in the center?	[ "The two major types of light-detecting cells in your eye are known as cones and rods. Their distribution from the center of the eye can be seen here: _URL_0_\n\nCones are the color sensing cells concentrated in the center of our vision. Because they are packed so tightly, they allow us to distinguish very fine det...
How do DJs give live concerts if all of their sounds are digitally created and recorded? Seems to me they could just hit the play button, which would defeat the purpose of a live performance.	[ "Haven't seen a legit answer yet so I'll give it a shot.\n\nYou are right in that many DJs perform by 'hitting the play button'. However, there are several other methods to perform live as a DJ as well. \n\nUsing Ableton in [performance mode](_URL_0_), is a popular choice for many DJs and allows you to manipulate w...
What is a quantum dot?	[ "Heads up, there isn't an ELI5. I'll give it a shot, but its going to be a little complex and I'm probably going to assume something you don't know or use some jargon. There's not a way around it, each paragraph will be almost a very brief summary of what could be an entire university course or more. \r\r\rLet's ...
Why do people fling their arms around when they're falling?	[ "Arm and upper torso movements are half instinctual, and are a method to regain your balance. To test this, stand up, and lean your body to one side as far as you can. Let your arms move where they may.\n\nNotice how the farther you lean, the more your opposite arm stretches out to try to counterbalance you? You ca...
- 401k, Roth 401k and a 457	[ "In a nutshell:\n\n* 401k is a piggy bank that you can put money in for retirement. It can come from pre-tax or post-tax earnings, but you must pay taxes on any money it gains when you withdraw it. There is a 10% penalty if you withdraw early.\n\n* Roth 401k is a piggy bank that you can put money in for ret...
How did xoxo come to mean hugs and kisses?	[ "The \"X\" was derived from very early Christians...it looked like a cross, so when documents were \"signed\" with an X added, it meant a degree of sincerity. As part of lore, the cross was often kissed (kissing crosses was a popular thing) and so, X began to mean a kiss. The O is a bit muddled, as a hug... but...
Is Aspartame (aka Artificial Sweetener, 951) actually harmful to your body?	[ "The short answer is \"no\".\n\nThe longer answer is \"yes, but not at any dose that you could realistically consume\".\n\nLots of things are harmful if you eat/drink enough of it. Water and oxygen are two substances that we absolutely need but that are quite harmful if we have too much.\n\nAspartame is something ...
Orthodox Christianity	[ "Orthodox Christianity originated in the Eastern Roman Empire, after the Great Schism. It had a ''Pope'', but he was called the Patriarch. The Orthodox Church divided, mostly by nationality. Mass is called Liturgy and it is conducted in the local language, instead of Latin. Priests can marry and have children. Ther...
Why does Japan practice whaling?	[ "Why Japan continues to practice whaling:\n\n1. Culture - Some Japanese believe that killing one animal (e.g. a Whale) is more humane than killing thousands of animals (e.g. a school of fish or a ton of shrimp). This somewhat relates to Shintoism and the concept of everything having a \"spirit,\" but again it's...
What did Native Americans know in advance of hurricanes and how did they know it? What about animals?	[ "I'm not sure of they did or not but you have to remeber that villages and gatherings of people were relatively small and didn't have a lot of \"stuff\" like we do today. Homes weren't as big or as complex, there were no cars or sheet metal etc. So storms wouldn't have been as deadly and as destructive as they are ...
What is laughter?	[ "All cultures do it, though sometimes because they are nervous or embarrassed, but mostly as a result of realising something to be funny.\n\nOn youtube, there are quite a few videos showing babies of a certain age laughing hysterically over the sound of paper being ripped. One video shows rats being tickled - an ul...
How do they figure out how many calories are in my food?	[ "Calories are a measure of energy contained in the food.\n\nTo calculate the amount of energy in the food we need to release it. This is done by burning it completely in an oxygen atmosphere.\n\nTo measure how much energy is released they may use something called a \"bomb calorimeter.\" Basically it is a chamber (i...
Why was a constitutional amendment required to prohibit alcohol, but no such amendment is needed for the prohibition of other drugs?	[ "Just spitballing here, but this is what I'm thinkin... Drugs aren't banned, per say, as alcohol was during Prohibition. You never hear people charged with having \"illegal\" substances, only \"controlled.\" It's a longstanding tradition in government to regulate the whole living hell out of anything you don't...
Why can we sometimes "feel" when a person is staring at us?	[ "You can't. You just selectively remember when you guessed right." ]
Is there an RGB-printer or a CMYK-monitor? Is it possible, or even common?	[ "Not really. CMYK is subtractive because when light hits the surface some of the light is absorbed and only the light that isn't absorbed bounces back to our eyes. Cyan absorbs red light. Magenta absorbs green light. Yellow absorbs blue light. That's how we can print to make most of the colors we can see since our ...
Why does the universe form multiple galaxies instead of one super galaxy?	[ "Galaxies are gravitationally anchored by extreme masses like supermassive black holes at their cores. A \"universal galaxy\" would require a single core that is able encompass the whole universe within its dominant gravitational influence. Gravity is too weak to work so effectively across such universe-spanning ...
Does your body burn more calories in natural heat v air conditioning?	[ "You actually burn more calories in cold temperatures. Your body works harder when cold to stay warm trying to keep homeostasis. That is why people who live and work above the arctic circle tend to need 4000-6000 calories a day to maintain proper weight and energy levels in comparison to the standard 2000 calorie d...
How are point spreads for sports betting made and how are they so accurate?	[ "An expert picks an initial spread. And as bets are made, the casino moves the spread until there are equal amounts of money on both sides of the bet. \n\nSo the bettors are pretty much doing all the work. So long as the initial guess isn't too far off, the casino will make money.", "I am not sure how the init...
Was there a term for civil war before the American Civil War, or are we just unoriginal?	[ "The Latin term bellum civile was first used of the Roman civil wars of the 1st century BC. The term civilis here had the very specific meaning of \"Roman citizen\". The English term civil war was first used in 1651 to refer to the English Civil War. Since the 17th century, the term has also been applied retroactiv...
How come after i stare at a computer/tv screen, when i look away my vision is blurry for a few minutes?	[ "Your eyes are adjusting from the light on your monitor to the light in your surroundings. They differ in brightness and your eyes need to adapt to these lighting changes.\n\nTo avoid straining your eyes too much, you can direct your gaze away from your monitor for a few moments and blink your eyes every so often t...
How do some medicines cause weight gain if you eat and exercise the same while taking them?	[ "It affects your sense of hunger and satiety, making you more likely to eat more.\n\nYes, if you hold everything constant, you're not going to gain weight (well, you still might - some medications make you retain water).", "If a medication changes the way your hormones work, then this can decrease what is known a...
Is it possible that something bigger than a blue whale lives deep in our waters?	[ "I suppose it's possible, but it seems quite unlikely. For one, it takes a lot of food to sustain such a large animal, and food is relatively scarce over most of the ocean depths compared to what's available closer to the surface. Secondly, things get washed up from the depths by tsunami and dragged up in nets al...
Why has the Disappearance of Madeleine Mccann continue to appear in the news even though she has been missing for almost 10 years?	[ "Because of the odd circumstances, the international nature of the investigation between UK and Portuguese authorities, and the wide reporting that it saw in the beginning, so it gets followed up on. Also, the family is well-off and has done a lot to keep it in general public consciousness.", "The right demograp...
What's the reason most trains don't know their assigned tracks until right before arrival when most planes have assignments up to a day in advance?	[ "I think Its because they only can go on certain ways where are railroads, and If only one is late, then the whole thing is messed up (like 2 train arrives to the same track because one of them is late). Meanwhile planes can go almost anywhere they want, changing route is not that hard to do, and even if one of the...
Nuclear power fueled by Thorium	[ "Thorium undergoes nuclear fission in the same basic way that Uranium does. You put a bunch of it together in a lump, and neutrons start flying around. Some of the neutrons hit the nucleus of a thorium atom, and the nucleus splits apart, creating different kinds of atoms, and releasing some heat and a bunch more ne...
Why can phone cameras record in 4K but not take 4K still photos?	[ "The photos are higher res than that... if you want them smaller just downsample or crop them.", "....phones have been taking 4k photos for quite some time already. 4k is 8MP. \n\nthe iphone5 was taking 8MP photos" ]
why don't woman grow facial hair	[ "Hormones. Testosterone levels high in men which promote male features. Estrogen in females." ]
the difference between a theoretical physicist and a "normal" physicist. Also a rogue physicist versus one that's none rogue.	[ "The difference between theoretical and experimental physics is a difference in technique. For the most part theoretical physics is trying to answer many of the same questions as experimental physics, even of the mundane how do we make device A perform better.\n\n The majority of physicists are employed in condense...
How long would it take to heat a bathtub of water with a lighter?	[ "171 hours, 11min\n\nAssumptions: \n\nNo loss of energy\n\n80 gallon tub\n\nStart/finish temp: 68F/103F\n\nHeating power: 40 watts (consensus found online for a candle)", "In practice, you'd lose significantly more heat than you'd be adding. A bit like blowing air into a blimp that has a huge hole in it. The mini...
What's the difference between multi-grain and whole grain foods?	[ "Multi-grain means that several sorts of grain are used. The opposite is something that would only use one kind of grain.\n\nWhole grain means that it uses the grain with its \"skin\" (the bran). The opposite is refined grain, which removes the \"skin\", like for the flour that's used to make white bread.\n\nSo a...
What exactly am I downloading/uploading on a speedtest?	[ "I've looked into this. I was not able to recognize a file format. Here's how I'd do it:\n\nDOWNLOAD TEST:\n\nI'd make sure the client pulls data and then deletes it quickly. You don't want to have a producer/consumer problem throw of speeds so it's not going to let the browser cache the file on the local dist. ...
Why, when you rotate a glass of liquid with ice cubes in it, does the ice not rotate with the cup?	[ "Inertia.\n\nEverything in the universe is trying to carry on the way it is - moving or stationary. When you push yourself across the floor on your office chair (don't pretend you don't) when you stop pushing, you carry on.\n\nWhen you push the glass round, the ice wants to stay still. There's very little friction ...
I sometimes see [brackets] used in things such as interviews. What do they mean?	[ "It means the quote was paraphrased by the interviewer for clarity. For example, if the interviewee said \"I met John, he is a nice guy\" then the interviewer might print it as \"[John] is a nice guy\"." ]
Why does pain tolerance differ in people?	[ "There's really no one answer for this. It's thought to be partly genetic, partly psychological and partly due to gender (females tend to have a higher pain tolerance than males, something to do with oestrogen). \n\nCurrent thinking (on my phone, can't link) is that two people can actually tolerate the same level o...
How does it feel to finally grasp that someone has died	[ "There's about five stages that a person goes through when dealing with a loss. The first stage is isolation and denial. It's like you go into a state of shock and you can't believe what is happening is real. You may feel a flood of emotions from numbness to sadness to anger, but mostly you have a hard time accepti...
The Godel-Turing Conclusion	[ "Godel showed that mathematics wasn't a sturdy building made up from a foundation of sturdy well defined bricks. \n\nInstead it was more like the buildings in the drawings of [M. C. Escher ](_URL_0_) full with weird and wonderful loops and logical contradictions from which there is no escape.\n\nTuring drove the po...
What causes clogged arteries? Can it be reversed? If so, how?	[ "Clogged arteries are caused by plaque, which is the result of a variety of substances building up on the walls of the arteries. It can be treated by adapting a healthier lifestyle consisting of balanced diets, regular physical activity etc.", "Also, how do you find out how bad it is? I ate a pretty balanced diet...
If glass is transparent,why do we still notice that it's there?	[ "For one, sometimes they're not completely transparent, just mostly transparent.\n\nSecond, the glass is refracting light -- bending it as it enters and exits the glass. This creates a distortion of the light coming through. We can recognize that this distortion has a shape and we see the glass.\n\nThis is also why...
Let say we dig hole into earth, how is the atmospheric pressure down there?	[ "Atmospheric pressure increases with depth, just like it decreases with altitude, because you have more air above you pushing down. However, you'd have to have a pretty deep hole to feel any noticeable effects - to feel 2 atmospheres you'd need a hole nearly 4 miles deep, because air is relatively light. \n\nContra...
Why do some songs or events give you the chills?	[ "/r/asmr should give you a good example of sounds, /r/frisson should give you good examples of music that cause this phenomena\n\nEDIT: Never actually answered the question, there's not enough research on the topic yet.\n\nQuote from asmr wikipedia \" Professor Tom Stafford, an expert in psychology and cognitive sc...
Why do our voices sound different when heard back through recording?	[ "When you hear your own voice, the way it sounds to you is affected by your skull, jawbone, etc.\n\nTo the second question...it's because it's not how we are used to it sounding. It's the same as why we don't like how we look in photos - we're used to seeing ourselves reversed in a mirror.", "Your head transmits...
I pay for 50Mbps internet speed, yet _URL_0_ routinely shows my speed being around 10Mbps. What's going on and is there any way I can improve it?	[ "You pay for up to 50Mbps. I'd bet that your plan specifically says Up to. Unless you are on FiOS, and even then there might still be that.\n\nReasons why?\n\n* Neighborhood network congestion\n* Local Network Infrastructure in larger area is crappy\n* Bad peering / connection to _URL_0_\n* Crappy home networking...
When, if ever, will Crimea officially be a part of Russia?	[ "That's a difficult topic. As for the first part of your question: Officially and according to the Ukrainan constitution, Ukraine can only change its territory in an all-Ukrainian referendum, therefore, from the Ukrainian standpoint, a secession of Crimea will be illegal and Ukraine will most probably keep claiming...
The current emerging market selloff	[ "Interest rates on long term bonds are rising in the U.S. and a rate rise is expected in the U.K. pretty soon, so emerging markets - except, for example, Brazil - are looking less attractive for bond yields. There are other things at play, like the massive devaluations in Turkey, Argentina and Venezuela, and the le...
Are humans crippling natural selection through conservation efforts?	[ "Not really, because most things are dying out as a direct result of our actions; hunting, destroying natural environments, etc. Most of the animals you hear the most hoo-hah about are ironically probably the ones we have most directly affected. In terms of the big predators that are in trouble it'd be an absolute ...
How does Carbon Dating work, and how accurate is it?	[ "A specific isotope of carbon decays at a predictable rate after something has died. So by measuring just how much of it has decayed, scientists can estimate how long it has been dead. It's based on assumptions (such as the amount of the isotope has remained relatively constant), and there are lot of factors which ...
When running, what causes a stitch?	[ "It's breathing on the same time that one foot hits the ground- that can cause your diaphragm to cramp since one side is constantly stressed. \nTry and vary your breathing so the same side isn't striking the ground and it should be fine" ]
Why is the maximum volume on TVs so high?	[ "The max volume produced is determined tv's hardware (how loud the speakers can get), the tv's software doesn't take that into account. \n \nThere are times when you get a super soft source, either from a different channel, a game console, etc. There are some channels where my volume is 25/100 and others when it'...
The current panic about Greece leaving the Euro	[ "The problem is that, when any country leaves the Eurozone, it establishes the precedent that the Euro is the kind of currency which countries might decide to stop using. That doesn't encourage people to invest in the Euro." ]
how do you calculate the damage caused by an asteroid hitting earth?	[ "There are five main factors that influence how much damage an asteroid will do if it hits the Earth:\n\n1) Its mass. This is obvious - the more mass the asteroid has, the more oomph it is going to hit with.\n\n2) Its velocity. Again, kind of obvious - an asteroid hitting at 30 km/s will hit with four times as much...
How do Lego bricks not lose tension/force through repetitive play?	[ "It's how the bricks are made. The LEGO term is \"clutch power\". You have the top cylinders on the top of the bricks and then on the inside you have inner cylinders. They do give out but after a LONG time. Here's an example _URL_0_", "Basically, they do - but it takes A LOT of repetitive play and the design is ...
I read an article stating that porn is a $94 billion dollar industry. Considering all the free pornography out there, how do they stay so profitable?	[ "Internet ads, membership sites with higher quality videos that also are safer from the threat of malware and viruses, and specialty services that let you hire a porn star or crew to make a specific scenario to your specifications (an expensive service, but it exists)." ]
How is the president protected from aerial assaults?	[ "There will be a no-fly zone in the space around where the President will be. The Secret Service will coordinate with the FAA on the routes POTUS is taking. If an aircraft comes too close, it will likely be scuttled.\n\n_URL_0_", "I remember seeing a presidential motorcade years ago, and noting the military helic...
How much of a risk are birds to airplanes, and why haven't we solved that problem?!	[ "I believe Mythbusters did an episode on what a bird could do to a mere car's windshield. Now, compare that to forcing a bird through a turbine (which is only meant to handle air). So yes, it's a risk for any aircraft, but most pilots know to avoid flocks, most planes generally fly far above where birds fly (except...
Consenting, or not consenting to police searches. Of your pockets or your car.	[ "Clearly and repeatedly state \"Officer, I do not consent to any searches\". Do NOT physically resist a search, even if it's an illegal search. Ask \"am I being detained or am I free to go?\" If you're not being detained, leave. If you ARE detained and then searched, keep your mouth shut and lawyer up, and assuming...
why does the navy's new rail gun have and explosive discharge if it's powered by electromagnetic energy?	[ "[This thread](_URL_0_) at r/askscience should help you out a bit.", "It generates a ton of heat and pressure along with sparks, so the air ignites. the explosion is a result of the firing, not the cause of it. part of the reason we're looking at railguns is explosive launches of shells have an inherent limit on ...
With all the big shiny telescopes in the world, why can't they simply show 'moon landing deniers' proof of the Apollo landings?	[ "You could. Apollo 11 (and 14 and 15 I think as well) placed mirrors on the moon so you could laser measure it's distance. \n\nBut moon landing deniers have likely come up with some crazy theory to refute this by now.", "Conspiracy theorists don't typically respond well to proof. They discard it, assume it to b...
Orphan genes/orphan inherited disorders	[ "Orphan diseases is just a term for rare genetic disorders. Orphan genes are genes that produce products that are not similar to gene products in other similar species." ]
Why does a head massage feels so good if there are no muscle on top of your head?	[ "Well, firstly, there are plenty of touch receptors there for feel-good fun, but in terms of muscles, there are muscles on the side of the head, and the muscles on the front and back of the head are continuous with (i.e. attach to) a [layer of tissue](_URL_0_) that covers the entire top of the head. A head massage ...
What made Coca cola so much more popular than Pepsi?	[ "I'm going on a limb and just saying that it's the fact that Coke came first and Pepsi came later. Another example of this is the fact that Pepsi made Gatorade first and when Coca Cola tried to make a similar drink, Powerade, they also didn't do as well in popularity.", "I am going to say that it is because Coke ...
Why don't atomic explosions "ignite" the atmosphere.	[ "The fear that was briefly held is that it would heat the surrounding air enough for the nitrogen in it to fuse. If this happened, they thought, this might release enough energy for even more nitrogen to fuse. And so on, in a self-sustaining fusion reaction across the surface of the planet.\n\nBut it didn't take mu...
Why do candles smell strongest when you blow them out?	[ "The scent is often oil based. If you burn the oil, you destroy the scent. But blowing it out, allows it to smolder thereby vaporizing the oil scent and filling the air with droplets of scent. (The same principle with incense sticks when you light them on fire, they smell stronger when you blow out the flame).", ...
Why are there high tides on the opposite side of the world at the same time?	[ "[This image explains it well](_URL_0_).\n\nBasically, tides are caused by the moon's gravity. The closer something is to the moon, the more it is affected by its gravity. So, the part of the ocean closest to the moon is pulled towards it, causing high tide. However, the part of the ocean farthest from the moon ...
lf our inside organs don't have nerves, how can we still feel when we're in pain?	[ "I think this is a pretty straight forward explanation \n\n_URL_0_" ]
the "plague" in World of Warcraft	[ "The \"Corrupted Blood Incident\" started when Blizzard released a new boss with a debuff called \"Corrupted Blood.\" This attack hit anyone standing too close to the boss and would spread to anyone standing too close to people who had it, and did several hundred damage per second for a while. The boss chamber was ...
What is the difference between Hepatitis A, B, and C?	[ "Hepatitis A is the kind you'd get if you ate contaminated fod or were otherwise exposed to fecal matter. Symptoms eventually disappear. There is a test but will only be positive in the acute phase. If that's what you were diagnosed with you would test negative now. There is a vaccine.\n\nHepB is caused by contact ...
Balance sheet vs. Income Statement vs. Cash Statement	[ "Income Statement: has all the revenue (sales) and expenses (cost of operating the business) and ends at net income\n\nBalance Sheet: snapshot of your company's assets, liabilities, and owner's equity. \n\nCash Flow Statement: starts with your net income from the income statement and shows the flow of cash in your ...
How do the rovers on Mars navigate?	[ "It's nowhere close to that automatic. The chain of commands will go something like this.\n\nFirst, the rover will evaluate where it is by taking pictures of it's surroundings. Using this data, and scientific observations from satellites, a scientist or group of scientists will determine where the rover's next area...

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