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I don't get how a plane would take off on a treadmill... (mythbusters) | I'll just add that while the plane can and would take off, a car in this scenario wouldn't move. In the case of the car, the forward force is the friction between the wheels and the road. On the plane, the force is the air and the engines |
What is happening when my browser trips up and makes modern sites look like it's 1998? Example inside. | You have the legos. You can make a basic car. You can't make a fancy car because you don't have instructions. CSS is instructions for the browser to style the page, it hasn't processed the style sheets yet. |
Enough of American politics already, whats the story with the National Peoples Congress? How do Chinese politics work structurally? | This is pretty funny to me People are saying things like 'the vote eventually does get down to the general populace, but at that point it's so diluted that it's not democratic' and 'people are just choosing from a pool of pre-selected candidates chosen by the Party' and 'it's just a big staged show to give the illusion... |
Without slavery, would black people be in America? | This is a really huge fork in the tree. The question affects America, but it also affects western Africa. No slaves in America means that 10 million or so people aren't taken from west Africa. That's a lot of people over 200 or so years. It's enough people to make the difference today between being a region that's soci... |
What is 'counting cards'? Why is it taboo? | Basicly it's a way to get better odd's than what the cassino would like you to have.It's taboo because the cassino's dont like it when people beat them at their own game.It's basicly just abusing the design flaws of the game of blackjack. |
how do we maintain level vision when we're walking/running. Is it our neck, eyes or something else? | As many others have already commented your brain uses the information from the vestibular system to correct position of the eyes and allow a steady view. This is called the [vestibulo-ocular reflex]. There's a nifty thing you can do with that information, well, a doctor can. Since you have a vestibular system in both e... |
Why do people think ADHD doesn't exist? | Simple: Because when it existed in the past we didn't recognize it as such. Since we didn't recognize it as a disorder then, there was no conception of treating it as one so it had to be dealt with in other ways. So people coped. Since people coped in other ways, people question why we need to diagnose or treat it toda... |
Why does my energy company constantly try to help me use less power? | Many power companies are monopolies in the areas they cover and so they're actually legally by legislation to provide sufficient power to the area they support. There are some times where it's actually cheaper to meet that legal requirement by sending people free lightbulbs or helping them use less power than building ... |
Why do cats get high off of catnip but I don't? | Many animals such as cats can detect pheromones which are basically chemicals that others of the same species can 'smell' and are used for communication, especially during courtship and mating. A major way to tell if that hot little kitty over the fence is ready to mate is if Mr Cat smells the pheromones she gives off.... |
How did the Republican and Democratic party basically switch rolls between the Civil War and now? | I've thought about that for some time. This switch happened when JFK became president. Somehow he was was talking about civil rights. This made southern white folks seriously scared, how is that a democrat is talking about civil rights. So, in the next 12 years the shift began to take place. Democrat states of pre-1960... |
Will one of the two main political parties in America (Republican and Democrat) ever dissipate as society continues to grow and advance? | More likely their platforms will evolve. The Democratic and Republican Parties were both born in the 19th century with completely different platforms than they have now, but they evolved with the times and I'm sure they'll evolve again. |
Why the Charleston attack wasn't labeled as terrorist attack. | If it is a terrorist act then it isn't a hate crime. They want the conviction as a hate crime, so they won't call it terrorism. |
Why is Obama considered a great president and why is he considered a bad one? | If all he did was get the Affordable Care Act passed, he's done more for most Americans than anyone else in recent times. |
How well would a current family car performs if we bring it back in time to compete in 1950s Le Mans? | People seem to be forgetting that the Le Mans is more about endurance than sheer power. Stop comparing rpms and max speed and horsepower and consider the reliability and physical build of the car. That's where the real answer lies. |
Why do kids not want to get into showers | Why don't kids like to transition from one thing to anything is what you mean, 1) Kids don't want to get in shower 2) kids don't want to get out of shower 3) Kids don't want to go to sleep 4) Kids don't want to wake up. It's all never ending, try to enjoy what you think you dislike now because you will surely miss it a... |
Why won't cats walk on aluminum foil? | To be fair in that video the cat seemed hesitant to climb on tin foil, then had a giant piece of tape engulf it's arm", 'My theory is that shiny water-like surfaces make them worried I think we have to cover your floors with aluminum foil and see how long the cats stay on the counter tops and dressers TIL my cat is imm... |
Why Don't They Put Screens Over Airplane Turbines? | That would reduce air flow for the turbine and increase weight. Both of which aren't good for fuel economy. I mean.. You could create a long intake that would redirect air and eventually lead to the turbine fan with a uniform airflow. It could provide some debris protection, but that's a lot of extra weight and too muc... |
Why is it that when my tv remote "dies", I can pull a battery out, put the same one back in, and it suddenly works again? | Check the contacts that the batteries touch. They are usually super cheap, and oftentimes in my experience get a thin layer of corrosion on them. By removing and re-seating the battery; you're physically scraping through that layer of corrosion and creating a clean contact again .when the batteries are almost dead why ... |
With evolution & survival of the fittest, why does unhealthy food taste better then healthy food? | Fittest, in the context of that quote, isn't actually referring to health. It's referring to the best fit of the organism to its environment. |
The entire series of the show LOST (spoiler warning ahead probably) | This is my experience with the Series. Season 1: This is going to be great! I like this. yes. this is good. *Clap Clap clap* Season 2: Okay I can do this. Season 3: What Season 4: okay what's going on? Season 5: *Seizure* Season 6: How did we get here? |
Why do most nursery rhymes have a morbid ending? | People died a lot younger in centuries past. And there was no Internet, TV or Radio to educate. Not even books for the masses before the Gutenberg press. Nor was there modern medical care. A simple infection was much more deadly. My great granddad died of an infected shaving cut. I'm guessing these social story memes w... |
What Border Patrol (US or Canada) sees when they scan the bar code on your passport | I ask because this is how the conversation went ; BP: What's your citizenship Me: US Citizen BP: Where you coming from? Me: XXX, Quebec BP: Are you headed to My exact town?, not the larger town most people refer to it as This is what I found weird. On all my crossings when they ask where I'm coming from I always say th... |
Why doesn't everyone in Star Wars have a light saber? | The blade is plasma caught in an electromagnetic field. That means it's affected by any nearby electromagnetic fields, including any nearby machinery or the planet you're on. It would be like holding a gyroscope. If you don't have Force sensitivity, you're more likely to cut your leg off than your opponent's hand. |
the hatred among the Irish, Scottish and British? | Nowadays there isn't really any hatred. I was born in England, of Irish heritage and study in Scotland. I've never had any trouble ever. If anything it's more like brotherly love. I guess you could compare it to American eastcosters and westcosters. |
Why we usually see ourselves in mirror much more "beautiful" than in photos? | ELI5: Mirror is reversed, photo is not. We see mirror-us more than we see photo-us. Also, mirror-us is not a single frame of our lives frozen forever. We may have a stupid-photo-face in front of a mirror every day, but we won't notice it because it isn't frozen forever.Its because of Self enhancement effect. People gen... |
Why are illicit drugs like Cocaine, Meth, and Heroin etc. illegal? | The same reason alcohol is legal: a lucrative status quo managed to take hold for varied reasons in each respective case and now there's an established and very entrenched economy in place. Oh, and, drugs are bad. Mkay? |
Why does the U.S. still have miserable internet speeds compared to Japan and other places? | There isn't one overall reason, there are several. -the US is huge with large areas of sparse population. Lots of fibre to lay down. -most regions have only one or two broadband providers. So there is no incentive for a company to spend the boatload of money to build out their infrastructure. -the lines are privately o... |
why isn't swearing on a bible a violation of the separation of church and state? | The reason this isn't a violation come down to perjury. People lie - a lot, especially when dealing with financial or legal matters. We need a way to hold someone accountable for their lies if/when they are found out. Essentially the oath you're swearing is to make your statement go officially on record and hold you li... |
Why does each year seem to go by faster as I get older? | well what i learned is the younger you are the more stuff you learn and experience for the first time. So your brain takes in and stores more vivid memories in the younger years because of all the new things were constantly trying. This makes life seem longer. So the larger these memories are the more stuff it seems we... |
Why is it easier to get a fast food job than a retail job, even though fast food jobs aren't easier? | Firstly, there's wayyyyy more restaurant jobs, in general, than there are retail jobs. You can run most retail stores with a few people, depending on the size. But a restaurant, of any size, can require several employees. Secondly, good help is hard to find. There is a LOT of turnover in the restaurant industry, theref... |
How come being outside in 90 degree weather is uncomfortable, but 90 degree water is amazing...65 degree weather is very comfortable, but 65 degree water is awful? | Someone care to explain how much is that in Celsius? I'm too lazy to go to a temperature converter |
Does my dog understand why we get in the car and what a car does? | When I take my dog outside, she'll go up to the car, rear up and hit the door with her front paws. If I don't react, she comes over to me, then goes back to the car door and does it again. Of course, whenever she knows what she wants, she'll get my attention if she doesn't already have, make eye contact and then look a... |
How potholes happen in roads | It has a lot to do with the material underneath the paving, if one little spot of the fill material wasn't compacted right, it settles over time under the paving and makes a little cavity. That hole cracks open, is subject to rain and other erosion, and you get a pothole. If there's a strong flow of underground water t... |
Why am I scared of spiders and not ants? | Ok I have a low to mild case of arachnophobia. Certain spiders don't trigger it. Daddy long legs , and those small, fast-moving, spiders don't trigger my arachnophobia. Here's the issue for me. The way spiders look creep me out. From the legs to the way they move is really creepy. It's less about danger and more about ... |
Why is the 'information cannot be lost' principle so vital to physics? | I am not a physicist, but my best understanding of it is that is where quantum mechanics and general relativity meet. If a black hole does spit information to a different part of the universe or to another universe the information that is put in maybe discombobulated but not lost. It's the same concept that energy is n... |
Electric cars and Batteries are cool and all, but how to we dispose of them when they break down? | /u/disembodied_voice's comment is spot on. I'd just add that for the most part once EV batteries are no longer suitable for use in an EV you can expect them to still have considerable utility for stationary applications. Grid storage is always a big problem, and operators will welcome the coming flood of cheap, out-of-... |
why is it easier to run on a treadmill than actually running? | On a treadmill you can regulate your speed. Set it to 5.0 and you run that speed. Run free outside and your speed alters. You may end up running at a speed that you can't maintain and end up tiring yourself out faster. And not to mention the slight changes in incline, or say potholes that you have to lengthen your stri... |
ELIA5 How do predators, like big cats, and prey, like gazelles, coexist near watering holes? | It's not like lions just *hate* gazelles and want their whole species to die of thirst. |
What do musicians hear in their earbuds when they're performing live? | A lot of people have already mentioned using IEM on stage to hear themselves. This is not the only thing you will see on stage though, not all musicians use IEMs. A decent set of IEMs will set you back at least a few hundred quid. Small bands can't afford them, and some people find that they are distracting, and diffic... |
Why is our brain programmed to like sugar, salt and fat if it's bad for our health? | Salt is only bad for you if your organs already don't function well and/or are unable to drink enough potable water. Fats aren't bad for you, with the exception of artificial trans fats, which are only possible to make with modern industrial methods. With the exception of trans fat studies, there is a dearth of studies... |
- Can usable guns be made from titanium? | Yes and no. Titanium is very light and a useful metal, but it couldn't work in guns. It's first of all too expensive and is brittle. Guns need to be durable and handle expansion and contraction of parts easily. Titanium couldn't do this easily, and a gun made of it wouldn't last very long. |
Why do normal, rational adults always think that snoozing an alarm for 5 minutes will make any difference at all? | I don't think the question is very clear. What difference do you think we're trying to make? |
Why does peeling an egg sometimes work and other times becomes a complete mess? | Age is a factor but sometimes it's the way you cook them. Put a good bit of salt in the boiling water next time. Helps it come off no problem. If you don't want to put salt in there knock the egg once on a table, take a spoon and try to break through the thin film without hurting the egg. The spoon generally fits the s... |
Why did the racism in America towards the Chinese/Japanese peter out, yet the racism towards African Americans is something that continues still today? | Because there's far fewer asians in the US than black people. A lot of racism comes from the south, which has a very large population of black people but not a large population of asian people. It's hard to be racist against people you've never seen or ever have a reason to think about. |
Why do some people use comma (,) instead of dot/period (.) when writing decimals? | It's mainly regional. If you're from somewhere people use dots, stop using commas, you look silly. If you're from somewhere people use commas, carry on.In OpenOffice Calc you can actually style cells by locale. Mine is set to act Australian as the correct formatting for all my information. Despite being a livelong user... |
what is so complicated about a nuclear bomb that prevents so many governments/regimes from building one? | Nobody has figured out the holy grail of a pure-fusion weapon. So you're stuck with having to try and obtain difficult to get materials for fission weapons. And those materials can be traced and have special requirements in handling. Engineering is still difficult too. Things need precision and have to be set off just ... |
How do so many package stores in New England stay in business when it seems like there is one or several every mile? | I'm going to speculate here that selling an impulse-purchase item like liquor + conveniently close location + small operation = profit. Fewer, larger stores spaced more distantly apart would have a harder time capturing those impulse purchasers. |
Why do we give prisoners razors to shave if they always use them to make shanks? | You can make a shank out of almost anything. Just gotta find something that's hard but can be given a sharp edge or a point. You can melt things, break things, whittle things, scrape things, etc. |
since archeologists uncover the past by digging, is the earth growing? | Some stuff gets buried, most stuff doesn't. The stuff that gets buried is still there to be found centuries later. The stuff that doesn't get buried typically gets destroyed. Note the expanding earth this a thoroughly debunked crank theory, comic book author Neal Adams is a famous proponent. If you search on it, you mi... |
What's the big deal with Voter ID Laws. Puerto Rico has had them for ages and no one's complaining. | This is a very divisive topic, but ultimately it is political. The groups that could potentially have trouble obtaining voter IDs, or any type of ID in general, tend to vote heavily Democrat. Democrats don't want to reduce their voter base. Republicans want to make sure the people voting are actually eligible to do so. |
Why do people tend to like other people who seem uninterested in them? Is there any psychological explanation as to why we try to please others who care less about us? | Because we all are born wanting to like our mommies and daddies. Some parents just don't get the hang of being attentive and kind to their children, but that's ok, we can lower our expectations because, they are of course our parents. We then grow up, and we want to find someone to spend the rest of our lives and have ... |
Apart from the 2nd ammendment stuff, what are the biggest arguments AGAINST gun control. | If we suddenly made guns illegal and forced people to turn in their guns then how many criminals do you think would actually do this? Instead of having good guys with guns we'd be living in a society where criminals with bad intentions have guns. |
Why is downforce better than normal weight? | Downforce provides traction at speed but doesn't actually add rolling mass to the car. That means that you get all the traction and straight-line stability benefits of weight over the wheels, but none of the body roll, sluggish braking, understeer, and labored acceleration you'd get from simply making a heavier car. |
why don't armies wear realistic camo like real tree or mossy oak instead of the blotchy stuff? | Long reasoning short: it doesn't actually work better than the digital stuff currently used, your eye cares about the shape of an object more than the apparent texture, which is why ghillie is curiously efficient even though it looks nothing like a Bush. |
Is it possible to survive cancer without human medical intervention? | Cancer is simply uncontrolled growth of cells. Those uncontrolled growths form tumors. Unless that growth is stopped, it will eventually kill you for whatever reason. If it's in your lungs, you won't be able to breath. If it's in your pancreas, it will stop functioning. Even if it's a benign tumor, meaning it isn't imm... |
Life of Pi's ending | The answers here are great, but one thing goes unaddressed. What was the whole part about the island? That wasn't a metaphor for anything, was it? |
If do not is shortened to don't, have not to haven't, why is the contraction of will not won't instead of willn't? | wonnot", and - yes - "willn't." As a mere quirk of linguistic evolution, "will" won out over others for the base verb, but "won't" won out over others for the contraction, just based on what people preferred and used over time. |
Why do people with ADHD/ADD not feel the "High" feeling that Adderal and other Amphetamine based medications give those without it? | The theory that it affects ADHD brains differently is controversial. It's probably at least partly because people with ADHD are using that medication under the supervision of a doctor and begin with a very, very small does . They usually wait around a month before trying a higher does, so that the effect can be clearly... |
Is the universe literally expanding, or is light from further and further away finally reaching us, or is it both? | > As in, is the universe literally expanding itself into nothingness, The universe is already infinite in extent, we *think*. However, there's more space appearing between all the stuff . There's no 'nothingness' that we are filling up. We're becoming less dense over time. |
Why Do Profitable Companies Carry Debt? | Debt is not a bad thing. Yeah Debt cost money, however the things you are using for that debt are in theory going to make you more money then what the debt is costing. If you can make money using someone else's money then you do it. Also, you might not have the cash on hand to do certain things, expand your build? Do y... |
Is it possible for Texas to secede from the union? if so, what is the legal procedure of seceding? | The others have the strictly correct answers that A) there is no legal procedure to allow for secession and B) that didn't stop the confederacy, so anything is possible so long as they win a war. But I would like to add that the sundering of the union would of necessity take place outside the existing federal contract.... |
Why does my head produce a seemingly infinite amount of mucous when im sick? | Not any scientific authority behind me, but I've heard it's your bodies flush technique, like when you get something in your eyes and they start tearing up.Here's an answer from a similar thread that I thought was interesting: > Mucus is composed ~95% water. Since the human body is largely made up of water, there is no... |
humans wear clothes since a long time, why didn't we get rid of all our body hairs? | Evolution isn't smart. If there's nothing that makes people with less hair more likely to successfully reproduce, there's nothing to increase the likelihood that less hair will become a dominant trait. Even if it would help people successfully reproduce, nothing necessitates that less hair will ever actually emerge in ... |
Why is it, with all the turmoil in the world, that the price of oil actually dropping instead of rising? | Oil prices have dropped roughly 25% since a peak in June due to increased production in the US, slow economic growth in many developed countries, and lower energy demand in China. Even with conflict and instability in OPEC member nations Libya, Iraq, and Nigeria, oil prices have reached a significant low point. A barre... |
Why is there a 100ml liquid limit on flights? | All your liquids have to fit into one small bag too, so you can't just fill a suitcase with 50ml bottles. Allegedly the limit means that you can't carry the ingredients for a dangerous amount of explosive, at least not alone. |
Why does it seem more socially acceptable for old people not to know anything about new technology, but it seems to be not okay for kids not to know about old technology? | I think asking anyone to know the totality of all tech history is asking a bit much. I also think that expecting people of all ages to be able to use the technology we have here and now is more than acceptable. And for the record I admonish my mother all the time for being so tech illiterate. Mind you, this is the same... |
- why do mirrors reflect left to right but not top to bottom? | Think about how the image reflects back to your eye Look in the mirror. Take right finger and place it on your right ear. Now move your finger straight to the spot on the mirror where your ear is. Notice how it's in a straight line from your real ear to your mirror ear? So your right ear is on the right side of the mir... |
Why does a 12 year old 100 pound kid and a 30 year old 6'6 250 pound man both take the same dose of Tylenol, Advil, ETC. | They don't. I'm a 6'1 250 pound male and if I need to remove a headache nothing short of 3 motrin will do it.Part is it is that the organs through which these drugs are metabolized and discharged, are the same size in just about every adult. Various organs, such as your eyes, brain, heart, liver, and kidneys will stop ... |
If pi is an infinite non-repeating number, then it contains an infinite amount of information. Shouldn't this be impossible? | pi has infinite digits, but finite information stemming from the fact it's a point. Draw the number line, find 3 and 4, and highlight the point corresponding to pi. since it's a point it only takes up one spot on the number line. See finite information, but because you are writing out pi in the most unhelpful way it lo... |
How are butterflies able to be frozen for a year, defrost, and still be alive? | When I was a kid I remember finding a frozen caterpillar in the snow. Brought it to school in my hand and sat with it during a first period assembly. Don't remember if these were my intentions but I essentially felt I ressurected a caterpillar. It warmed up and started crawling around my hand and stuff, it was awesome. |
Why does the US voter registration system need to specify a party? | A party specification is not required. But it's there as an option because specifying a party allows the voter to participate in that party's primary elections for example, the republican primaries in various states allowed the republicans to choose who would be their presidential nominee . Only registered republicans ... |
why printers seem so old or faulty compared to other modern technology. | I read something recently, possibly on reddit, I can't remember. It basically said that the method used to send documents to a printer are very old fashioned and people are slow to make the move to another way of doing it. So its more about the software really. |
How do corporate mergers/buyouts work? Isn't the actual purchase price a moot point since the money will go back to the new owner? | Afaik the money goes to the shareholders, not into the company funds. It's a payout to investors. |
Why are processed carbs like white bread and white rice considered so bad for you? | Processed carbohydrates are the same thing as simple sugars. Simple sugars are easily broken down by your body, which can lead to excess sugar in the body which is stored as fat. The while process is not particularly calorically taxing, so your body is taking in a lot more calories than your expending to process the si... |
How high levels of radiation cause cancer? | Radiation damages a cell's DNA, causing rapid mutations. Eventually, with enough time, a mutation will occur that causes the cell to divide uncontrollably. All the offspring cells will have the same mutation, and cancer begins. |
Why is it that the jobs considered the most selfless, such as teachers, police, and firefighters, seem to get paid the least? | As a special education teacher in a high poverty area, I often wonder why there is so little value in education. I know I made the choice to go into this profession - I made this decision in my 20's when I was still bright eyed and optimistic. I thought that someday the pay would catch up to the responsibilities. Howev... |
Why does salt that you buy in a store have a shelf life, when it essentially just rocks? | Shelf life is a term used for when something will no longer be at its' PEAK freshness. It will still be good and usable and consumable, but based on their testing, they've determined a definite amount of time before the product is not at its freshest. One reason that comes to mind, is if the salt spends too much time o... |
Why is it frowned upon to take food home from a restaurant in Europe? It is so commonplace in North America | Portion sizes, in most cases, in the U.S. are larger. My guess is it has naturally become commonplace in the U.S. to take food home from a restaurant due to that. I'm from the U.S. and I've visited France, Germany, Ireland and Spain. From my experience, portion sizes are smaller. This is just my personal experience. Th... |
What is White Privilege? | Generally speaking whites have some disproportionately favorable outcomes in law enforcement, legal proceedings, job applications, and other area's compared to african americans and latinos.There is some evidence of these effects being tied to economic class.1st generation immigrants don't tend to echo this problem but... |
What happens if you break a bone and don't go to hospital with it. | Think of your bone as a bridge. When you break the bone, it's like breaking the bridge in the middle. Now the bridge will automatically start adding concrete to the break from either side until it eventually comes back together. If you move the ends of the bridge, there will be concrete moving in every different direct... |
Why is it bad to let your car get below 1/4 tank of gas? | I've had several cars that I put over 200,000 miles on, usually not filling up until the light comes on. I think that says it right there that it doesn't hurt anything unless as some have said, the fuel pump is a crappy design. Only fuel pump I ever lost was in my 88 Taurus but just about everything failed on that Ford... |
Why do we get money back from tax returns? | As you can see from the forms in front of you, determining how much tax you owe can be complicated. The amount that has been deducted from your paycheques was a guess at about how much you might owe. Now it is time to figure out exactly how much you owed for 2012 and get back the extra if the guess was too high, or pay... |
How come women generally moan/scream louder during sexual intercourse than men? | Because men are too busy focusing to let themselves emote. When a man finally emotes during sexual intercourse, he's pretty much done having sexual intercourse. That, and the fact that when men emote during intercourse, we're all too aware we usually sound ridiculous. ^^Edit: ^^a ^^word", 'I think it has to do with por... |
Why does such a tiny percentage of eligible voters vote in the U.S. presidential primaries? | They think their vote doesn't count anyway perhaps. Also, a lot of states only let you vote for the party you're registered for. So maybe they didn't like the candidate? |
How can they make a Blu-Ray version of 70's and 80's or even older movies? Is it the same resolution converted bigger or actually it is better quality? | Old Timey movies were shot on analog film. Which doesn't have a set resolution. If it did, the films would like pixelated and ugly blown up to a 50 foot screen size. They can take that analog film and convert it to digital formats in 1080p to give it the higher resolution. |
Why can't we clench our fists or hold things tightly just after waking up? | Basically, it's because when you sleep you lie in a way that you compress the nerves in your arm. In particular, you compress the median nerve, which innervates the majority of the muscles in your arm that enable the grip motion. This compression is called transient nerve palsy, as the pressure is removed, the ability ... |
How is the Golden Ratio so common, and how is the ratio used in art? | It's mostly B.S. when it comes to art. And a lot of the nature stuff is B.S. as well. I'm sure there are punchier videos out there, but I think [this 11:30 minute video] is a solid description of truths and fictions about the Fibonacci sequence. Artists usually just do what looks good, and the Golden Ratio is not a rec... |
Why don't some people "believe" in vaccines or modern medicine? | It is because they don't understand science. This is not hard, I learned how a vaccine works in fifth grade. People die to disease because the disease overwhelms their immune system and/or kills them before their immune system can adapt. The human immune system is designed to learn from previous encounters with pathoge... |
Why do automatic transmissions rule in the US and why are gas prices so low in the US compared to europe? | I'll weigh in on the automatic thing Here in the UK at least there was this culture that driving an automatic was lazy, or you weren't a real driver if you drove one There was negative stigma attached to it so people, for the most part, didn't get automatics That culture is on the decline now with many service vehicles... |
Why don't we remember everything? | Technically, we *do* remember everything-but if we had the capacity to *recall* everything-we'd be like Tweak off of South Park. Basically, it's just too much information to have us run smoothly aka not-crazily. Look for the article about the woman who can remember everything about her life, in exact detail, since she ... |
What would happen if a Slave owner had sex with one of his slaves and the slave had a baby from her master? Would the son or daughter conceived be considered a slave as well? | Alexandre Dumas's dad was a french nobleman and his mother was a slave. Alexandre was born a slave, but freed and went on to write the Three Muskateers.Chattel slavery in the US, yeah. Indentured servitude, not necessarily, but there are lots of ways around it. Generally someone would sell themselves into indenture, bu... |
why isn't boiling sufficient to make drinking water? | It would work - but only by distillation. You'd need to collect the steam and condense it somewhere else for it to be safe. Just boiling water and drinking what's left can be unsafe: It does kill the bacteria but killing lots of bacteria can leave unwanted breakdown products of the bacteria that you wouldn't want to dr... |
Why we learned to cover our private parts with clothing? | I'm not entirely sure how it started, but according to the 'good ole bible' didn't god give the fear of nakedness to Adam and eve? as someone of a 4 year old girl, there has been a natural instinct within me to cover her up when she is in public now - she doesn't have the tendency to be embarrassed or to cover up, but ... |
Why is Taiwan not recognized as an official country by some? | To say that China would not take it well is a bit of an understatement Pretty much the reason that Taiwan is not recognized is because China threatens to direct its wrath, both financially, and militarily, at anyone who dares to do so. There are many ways to agitate China, but Taiwan is one of those issues over which C... |
How do birds not cast huge shadows on the ground? | The sun is very far away. It is far enough away that, on earth, the sun's light is basically parallel. So, a bird's shadow will be about the size of the bird, no matter how hight it flies. |
Is it possible to cross the asteroid belt? | Absolutely. The actual asteroid belt doesn't look like it does in movies. If you were on an asteroid, you'd need a powerful telescope to be able to see any of the other closest asteroids. They're **really** far apart. |
If cigarette smokers are addicts, how are they able to sleep through the night without waking up to smoke? | Not very often I will get up at night and have a smoke. It's nice, quiet, crisp air. That one and the one after lunch are ok. The others suck ass. |
How does torrent work and how does the ISP detect torrent activity? | How they work: The torrent file contains information to the location of the data you want to download and they also conatin the urls of the trackers which help the computer program find others who have parts or the whole file. Your computer starts connecting to uploaders and downloads the pieces of the file from them. ... |
How the skin stretches. | Put on 30 pounds in a month after an injury 200-- > 230 pounds. Stretch marks on my stomach. I would tend to say this is what happens when your skin can't go further.To add to these points, you have stem cells in your body that can become any other cell it needs to be. For example, when you slice a chunk of skin off l ... |
when and why server wages were suddenly made okay to be lower than minimum wage. | A servers income in the United States is based off of tip income and is usually their primary form of income. Depending on where they work at, their pay can range drastically from the mid 25,00 a year to 50,000 a year at upscale restaurants. States differ on tax polices but the one I live in a state that makes servers ... |
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