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Why there so much language diversity in Papua New Guinea and India, but not in China or France | Because China and France both had governments that made concerted efforts to enforce certain languages and dialects on their people, mostly through centralized schooling. For example, in France, even as late as the early 1900s, less than 20% of Frenchmen spoke Parisian French . At the time they all spoke regional diale... |
What exactly does a "Christian Conservative" believe? | I assume you're talking about politics and not theology. Generally the so-called Christian Right believes in using the power of law to enforce some sort of public morality based on Christian or Judeo-Christian doctrine. Abortion, same-sex marriage , stem cell research, drugs, pornography, et cetera; if it's immoral it ... |
Why are airplanes covered in rivets and cars aren't? | Just to clear this up.. The reason is does not have anything to do with aerodynamics. The drag coefficients on bolts vs rivets is negligible. We use rivets to build paneled airplanes because it's the preferred method to conjoin aluminum panels together. It's not efficient for strength or cost to weld them together. |
What evolutionary human trait or function has no practical advantages or disadvantages -- it just "is"? | A boatload off them. There's the recurrent laryngeal nerve, which starts at the base of your skull and ends at your larynx five or six inches away via your chest. It goes down into your chest, loops around the heart, and comes back up to the front of the throat. Our retinas are backwards and upside down. The light-dete... |
How I can get a virus by simply visiting a website? | Mredding already answered your question really well, but I've got a few tips on the antivirus situation. As at least half of Reddit will tell you, Norton is a terrible program, it's pretty ineffective at removing viruses, and can sometimes make your problems worse. As a general rule, I wouldn't use AV programs that com... |
Which animal's extinction would have the biggest impact? | *Homo sapiens* No other animal has a larger impact on the ecosystem than humans. If we're not counting people, probably either domestic cats or domesticated goats. Humans have brought both everywhere and both are hardy and highly destructive little bastards when it comes to local flora and fauna.Well, as other said, lo... |
Even though XboxONE & PS4 are much more powerful than previous consoles,graphics still isn't that much better.Why? | Another reason for stagnation that no one else has picked up on is the laziness of developers.Why bother making more HD textures when everyone is already saying the graphics are great? There is no need to move up to 4K as the tech isnt cheap enough for mass consumers yet, and it just takes more money and time, as well ... |
While driving, why does the interior of a car thump loudly if only one back window is rolled down but not just one front window? | /u/Robback has explained why this happens in the first place when any window, especially the back window, is open. However, that is not OP's question. OP's question is not why does it happen, or why does it happen more with just one window. OP's question is why does it happen *more* when the *one window* open is in the... |
Why do video games built on computers have to be ported to said computers? | Not all computers speak the same language. Just like not all humans speak same language. An engineering book written in German won't help you build a bridge if you only read English and Spanish. |
Why don't airplanes transmit cockpit voice, flight data, and GPS coordinates to satellites in real time? | I could be wrong, but I believe that SOME planes do pretty much this exact thing now. When the engine exploded on the Qantas A380 the airline control center could see the ECAMS warnings in real time or something very close to it. Other commenters have laid out why full flight data repeating isn't a thing yet , but the ... |
I know it sounds a little bit weird. But where do all those bubbles come from when i'm boiling water? | When something boils, it does so unevenly depending on which bits are hottest. Molecules turn from liquid into gas when they absorb heat energy, vibrate, and overcome the forces between them and other liquid atoms/ molecules. This means that one 'bit' of a liquid can become warmer than the 'bit' next to it. In a kettle... |
why Disk capacity increases exponentially over the years but not quite for access speeds? | It's easier to make a bigger warehouse, but not so easy to make faster forklifts. You can squeeze more and more info into a disk but the mechanical device that actually reads the disk can only move so fast. |
How Urine Color Is a Sign of Dehydration? | Imagine you have a glass of lemonade, and you start pouring water into it. It gets lighter. Same thing with urine. There's a certain amount of chemical waste that comes out with urine that gives it the yellow color, and the more extra water you add to it, the more clear the color becomes, just like the lemonade. It's j... |
Why does a cars battery die so fast while the engine is off, but doesn't die when the engine is running. | The alternator creates an electrical current that charges the battery and powers the electrical devices while the engine is running. Your brother's car was consuming charge from the battery using the radio with the engine turned off, but not charging it. So when it was started there was not enough energy left in the ba... |
When buildings/houses are built on steep hills and rock faces, how do they know it's going to stay stable and that something won't shift and cause devastation to the structure? | Well it depends on where it's built. In the USA or UK for example you'd need a thorough geological survey done of the site, then architects, structural engineers and building companies would come up with a workable design. Then a mountain of paperwork waded through before it was built with continuous observation from t... |
Why I'm never hungry for breakfast in the morning even though I haven't eaten for 8+ hours? | I've had this problem most of my life, and eventually saw a doctor about it. In fact some days not only did I not feel hungry in the mornings, I would feel nauseous. Doctor told me it was to do with stomach acid. He strongly suspected it was related to gastrointestinal reflux, where the stomach acid irritates the openi... |
Why do damaged kidneys not regenerate? | They do not possess stem cells like your skin for example, that have the ability to regenerate particular cells when damaged. Kidney cells can sustain some degree of damage and go back to being normal if the initial insult isn't large. But if it's large enough then the cells die off, and they have nothing to replace th... |
Why are most people, especially military taught to aim "center mass" when there's such a prevalence of body armor in a modern conflict? | First, as it has already been said, body armor isn't hugely effective against rifles. Hitting a target at 30+ yards is hard, especially when the target is shooting back and your adrenaline is up. The key thing is to remove the threat from battle, not necessarily kill them. A slug to the gut may or may not kill a person... |
Why do we get sick when its' cold? Does it have to do with the temperature or some other factors? | The explanation my biology teacher used to give hasn't been mentioned, so I'll give it a shot. However, I do not hold any scientific proof to back it up.during winter, every single time you go outside, you are exposed to really cold temperatures. The body tries to fight the hypothermia, and therefore, the defenses are ... |
Why are burping, farting, and other natural human processes frowned upon by modern society? | I would assume in western cultures it is due to some vestiges of Victorian sensibilities, but I'm too lazy to look it up on my phone right now. As some other posters said it varies from culture to culture; slurping loudly while eating noodles is a form of respect to the chef in Japan.[You Will Die: The Burden of Modern... |
It's understood that professional wrestling is "scripted", but how do those undeflected falls work? | They try to land as flat as possible, and create as much surface area. They spread their arms because that flexes your back muscles in a way that protects your spine, and they tuck their chin to their chest so they don't hit the back of their head. Of course it's not always perfect. Guys will often land on a hip, tailb... |
What is physiologically different that causes an animal to be "warm blooded" or "cold blooded" | A warm blooded creature has anywhere from 10 to 20 times faster metabolism that a cold blood creature of the same size. That's where the heat comes from. Cold blooded creatures also generate heat, just not very much. So a cold blooded creature is like riding a bicycle if it is cold out, better wear a coat. A warm blood... |
What has happened with Turbo Tax? Why shouldn't I use as I always have? | Lately I've been hearing that when Anthem HMO got hacked a while back, the hackers had gotten hold of some SSNs and were filling out fake tax returns on TurboTax in order to get people's refunds. Because of this, they had stopped taking state tax forms thru TurboTax, but now it sounds like there's just liable to be del... |
If before lighting a candle you're supposed to trim the wick down, why do the candle companies not just produce the wicks at the right length? | You're really supposed to trim the wick as the candle burns off, too, not just at the very beginning. When the wick curls upon itself the flame can burn unevenly, and your candle will melt off-centre. So trimming is a regular process, and it's arguably less necessary when a candle is new, than later on, as more of the ... |
Why is the Cinnamon Challenge so bad? | It's really finely ground so it immediately puffs up in a cloud and gets into your throat and lungs if you're not very careful, it absorbs all your saliva, and it tastes fucking nasty, IMO at least. I puked when I tried to do it. |
why is being "cisgender" bad? | I've never met a trans* person who thought the term cis* was bad. Cis- is the literal antonym of trans-, after all. In fact, most of the complaining I've heard was actually from cisgendered people, because of the 'othering' effect. Cis- categorizes and boxes in a lot of people that aren't used to beng boxed in and cate... |
Why do blankets that have been stored for a long period smell weird? Stored in closets, boxes, etc | Towels and blankets smell after being stored for some time is because of the oils and skin cells that are deposited during use. Even the best laundry soap and bleach will never fully remove these things. What you are smelling is old body oils. Everything is clean but not everything can be removed. Over time your textil... |
If the minimum wage gets raised to $15.00/hr what happens to the people who make $15/hr(or a little more) already? | That's up to their employers. It's unlikely that we'll get a minimum wage increase, at least by that much; it's almost certain that we won't make law about wages above that.They would have to walk up to their boss and ask for a raise citing your point2 things will happen. * Those that currently will make $15 an hour, w... |
Why is gravity measured as 9.8 m/s^2 | Gravity pulls more the closer you are to an object, this means objects get faster and faster as they get closer. When speed increases this is called acceleration. Imagine you are in a car doing 50 miles per hour. Over the next hour you slowly speed up to 60 miles per hour. Your speed has changed by 10 miles per hour, i... |
When I get "butterflies in my stomach", what is actually happening inside my body? | I'm going to posit some speculation here. As has been said, the feeling is the decrease in digestion from reduced blood flow. The chemistry inside your stomach has not changed, though. I hypothesize that the feeling is partially a buildup of gas due to enzyme/acid overactivity. I think this is exacerbated in people wit... |
Why are pandas so evolutionarily inept, yet we insist they are a species that must be saved? | They're so cute! Well, either that or the little fuckers have some serious dirt on us they're blackmailing us with. |
Why shoelaces tend to losen themselves no matter how tight we tight them? | The knots we use to tie shoes are also done that way so we can **un**tie them. When your shoe is moving around, depending on the material of the lace , it'll eventually come undone.Different ways of lacing and tying will have different effects on how your shoes fit. If your knots are loosening as you walk you may want ... |
How did early humans survive without weapons and how did they go from no weapons to weapons? | Ugg wants to fight like Grog. Grog punches things and they die. Ugg is not a good puncher. Maybe because Ugg does not have large, heavy, and hard fists like Grog has. But rocks are large, heavy, and hard! Maybe if Ugg hold rock and punch with a rock in Ugg's fist, it will hit better. It does! Ugg uses a rock fist from ... |
MH17 'BUK'. I have seen pictures of these machines, are they really that powerful? is it possible for them to shoot down a passenger aircraft at that altitude ? | Also you have to consider the objectives of commercial air travel. They want to carry as much cargo as far as possible using the least amount of fuel possible, so the aircraft are very light weight in order to facilitate using the least fuel as possible. The end result being that you could probably take a sword and pok... |
What effect will the cessation of Saturday USPS mail delivery have? | Items that you would've received on Saturday you'll now receive on Monday. Add a day for any delivery that has a Saturday included in the shipping schedule. |
How is guiness' head so white when the beer is so black in liquid form. | The nitrogen is much lighter than carbon; meaning it will travel more quickly to the top than other gases. The proteins in Guinness are not as long as other, less malted, beers . Normally when gas tries to escape a liquid, the surface tension will begin the formation of a bubble . So, shorter proteins means smaller, mo... |
What will happen on the 'Internet Slowdown' day, and what can I do to help the cause? | What are the implications for the rest of us who aren't in the US? Can't personally do anything to help, but supporting Net Neutrality all the same. Edit: Rephrased for clarity. Sorry if this was a stupid question. [Here] says the banners will show up once and doesn't actually slow down sites. |
How is it decided what pictures are featured in wikipedia articles for things like "Human" or "Cat"? | If you go to Kim Jong-un's Wikipedia page you'll notice there is only a drawing of him because there is no picture of him that's freely licensed So this seems to play a big part obviously ", 'Fun tangentially related fact, there is no official human skeleton. Official skeletons are usually the first ones discovered fro... |
What is the difference between China's "creepy" Social Credit system and the US' Credit Score system? | China's is used to punish political dissent and behaviors they strongly dislike. They being the communist government. A credit score in the us is a financial well being score. It has nothing to do with your social skills, your political opinions or most of your behavior. Pay your bills on time, get higher score. Credit... |
Why do we have a registry and notification system for sex offenders but not murders? Don't they pose a greater threat to society? | I still have yet to see any evidence that a registry decreases any risks to anybody. There seems to be evidence that they actually increase risks because they make it harder for prior criminals to reintegrate into society, which is the goal, but making sure they can't get or keep jobs, can't be accepted into neighbourh... |
process for the President getting Top secret clearance? How different is it from other gov officials recieving the clearance? | The President doesn't really go through clearance procedures, other than informing him of what he can and can't do with that information. You can't have the Commander-in-Chief not be aware of classified information, and as such they don't really need to pass clearance tests. |
Why do big cases like Dylan Roof's take so long to go to trial? | Also, in his particular case, his lawyers will be looking for mitigation. That means they'll want to do a psych eval, get school records, etc. Both the defense and prosecution will want ballistics experts, forensic experts, etc. Finding the experts/psychologists, getting permission to hire the them, getting approval fo... |
Why do humans vary in looks very distinctly but most animal species look very simiar? | There is an area on the right side of the brain called the Fusiform Face Area. It's thought to be specialized to tell the difference between human faces. Of course you can, with practice, learn to tell the difference between things that at first look very similar. But we seem to have a built-in advantage in recognizing... |
Why can't my Macbook and iPhone be synced through blue tooth. | Bluetooth is too slow to be useful for this purpose. It will take hours. You can use WiFi syncing if you're on the same WiFi network though, which is wireless. |
Why do I have to preheat the oven? | You could, but you'd need to figure out how quickly your oven heats up as compared to every other oven out there. Recipes are designed to be used by as many different people - and as many different ovens - as possible. The fact is that different ovens heat up at different rates, so recipes would be very hard to do corr... |
Why does it seem that all Russians have dash cams? | It's cheaper for them to have dashboard cameras, than to pay for full coverage insurance.And all along I thought it was simply for the entertainment factor |
Why does global warming effect harsher winters? | To give one example of how global warming causes colder weather are the recent polar vortices, both the one this week and the one a few years ago Imagine that the North Pole is typically covered by a tight hurricane like formation of arctic air spilling around. Now, because of global warming, these wind formations weak... |
How are car blinkers perfectly in-sync for s few seconds, then not? | > How are car blinkers perfectly in-sync for s few seconds, then not? They are not perfectly in sync for a few seconds, they are at most theoretically in sync for an infinitesimal period of time which they may not even be lit up for. What is happening is that for a period of time they are so close as to be indistinguis... |
Why is South Korean president Park Geun Hye hated by Korea's citizens? | There's a lot of things wrong with her but on the top of my head she NEVER takes responsibility for anything |
Why is the standard way to hunt deer a stand, rather then active tracking? | Many hunters only have a small area to hunt - you can't follow the game effectively when it would be trespassing. |
Why were old music videos from the 90's all uploaded to Youtube in the summer/fall of 2009? | I'm not certain, but didn't Youtube make an agreement in Late 2009/Early 2010 with various copyright ownership organisations that clarified lots of things about ad revenue, ownership, copyright etc of videos uploaded? It certainly did for TV and Movies etc, and I'd presume that the same changes prompted owners of music... |
If a carnivore can’t find prey and is otherwise going to starve, why wouldn’t it just berries, vegetables, etc.? | They will if they're desperate enough. The problem is though that a lot of carnivores have evolved to a point where they require meat to survive. Their digestive systems don't produce the necessary enzymes required to extract nutrition from plants, etc so it doesn't really matter how much plant material they were able ... |
what is the difference between Art and design? | Art: diverse range of human activities in creating visual, auditory or performing artifacts Design: is the creation of a plan or convention for the construction of an object or a system An Industrial Designer, Graphic Designer, or similar marry Art with Design. Art is not design but you can design art. You can go to a ... |
Why do some people become more attractive to you the more you see them? | This is likely a subset of the [mere-exposure effect]. Psychologically, people tend to like things more the more they're exposed to those things. This applies to music, paintings, and even people's faces. |
Why do most Americans not use a kettle while the rest of the world does? | By and large, Americans don't drink a whole lot of tea. We tend to prefer other drinks, like coffee or soda. For occasional tea drinkers, microwaving a mug of water or boiling it in a saucepan suffices. That being said, those of us that do drink tea regularly enough will use a kettle. I have an electric one, myself, bu... |
What does "nose" smell like? How does your nose ignore itself to smell its surroundings? | You've been smelling it for your entire life. It go used to it, same way you can smell when your mom is cooking but when u stay in the kitchen for a few minutes you dont notce it |
What happens when you feel a muscle twitch, but it doesn't appear to twitch outwardly, or when you touch that area of the body? | It's not a neuron dying, but rather, it's a very small motor unit , that is firing at random. This can be caused by a variety of things, but generally will resolve on its own. |
Why North Korea having a tantrum results in them getting food aid? | They can't ask for help without losing some face. They'd rather pretend that they scared everyone into donating food. The rest of the world would rather pitch them some food aid rather than call their bluff and have them pull some shit on S Korea. |
Why do we get a "lump" in the throat when we get really emotional? | [Flight or fight] response to stress. Basically, throat opens wider to allow more air, but swallowing closes the opening. So your body is automatically trying get the muscles to go in one direction, and by swallowing your getting them to go in another. Hence, discomfort. EDIT: I couldn't see through all the deleted top... |
why are textbooks in higher studies courses so expensive? | It's a captive market. Students are forced to buy one *specific* book and the book is not chosen by the person bearing the cost. As a result, it makes much more sense for the textbook companies to spend a large budget on marketing to the professors/schools that assign the textbooks and defraying that cost with ludicrou... |
How do those checkbox "I'm not a robot" capchas work? | If you're logged into your Gmail it assumes you're a human. If you're not you get the reCAPTCHA. Try it. We recently implemented the noCAPTHA for our high-volume online sales apps and assumed Google had some proprietary black magic at work. Nope, Gmail login.It is robot code that if you are a robot you can not lie abou... |
Why does giving birth hurt, even though it harms reproduction? why was it not removed through natural selection? | Because natural selection is a process, not a choice. The only way that painful childbirth would be removed by natural selection is if all women who had painful labors died. That would leave women who had pain-free childbirth to continue having babies, therefore carrying on the genetic predisposition to pain-free labor... |
The current state of the world economy. Explain like I'm 5! | Well, there's enough blame to share, but the market crashed in 2008. People are still unsure of what exactly it was, but mostly people believe it was the trading of bad mortgages and futures. The American market dropped, and so did all the world's markets, as the world is increasingly dependent on each other, and the U... |
Why do scientists assume that water is needed for life? Is it possible that there are forms of life in the universe that have none of the needs that life on earth have? | It is possible, but that's what we know. With all of the worlds out there, it's easier to stick with what we know to narrow it down, otherwise we'd spend a long time looking at something for nothing. |
When people in movies have to do nudity, do they have a saying in that? | It depends. For anyone important enough to get their name on a movie poster, their agreement with each movie they do will usually be the product of a negotiated agreement, which allows them a considerable amount of input into whatever they feel is important . This allows the talent to specify exactly what the limits of... |
Not feeling hungry while hungry, instead, head starts hurting. | Depending on how often a person eats, and how large the meals are, as well as their physiology and age, they may not take in enough calories and yet their stomach may not signal hunger pains. Since the person isn't alerted to this lack of calories through hunger pains, the amount of quick energy such as carbohydrate, i... |
What kind of evidence is there for mental illness in species other than our own? | I can't give you a study, but I worked in a dog care facility for a few years, and a labrador apparently had some mental disorder. It was moderately old but acted like a puppy. No concept of its size, constantly had to be corrected by other dogs during play, would run into things thinking they were further away, absolu... |
If cancer is just your body's cells, how can it kill you? | If you've seen the Matrix Trilogy think of cancerous cells as Agent Smith, replicating uncontrollably until everything has been taken over by those cells and the body can't function anymore.Every cell has rules built in that tell it when to grow, when to start and stop eating, what to say to it's neighbors Generally, h... |
What's the point of giving people ludicrous amount of jail time, like 5000 years? | There is no point, really. It just happens in some judicial systems. If the jail time for a certain crime is 30 years, e.g. murder, and the guy has commited 10 of those, the total would be 300 years obviously, which is like a life sentence. I'm from a country without death penalty or life sentence, and this kind of sen... |
The history of Canada. Why were the Canadian provinces not involved in the American war of independence, and how did Canada come to be a separate country? | Two battles occurred early in the history of these two nations. In 1775, the Continental Army invaded Canada, expecting to be greeted as liberators. They needed to prevent Canada's use as a resupply route for the British Army. This invasion was largely successful until the Battle of Montreal , where the overly confiden... |
what is a VPN? How does it work? And how can I get one for my Mac? | VPN stands for Virtual Private Networking. In a traditional role corporations use VPN's to allow workers to telework from home, that is to use their home internet connection to connect to their offices VPN and access internal company network resources. As of late a lot of people are using VPN's as a proxy service, whic... |
are there really any long term effects of smoking marijuana? I feel like the info out there inaccurate or propaganda. | Not that I smoke these days, but:Avoid grass that's cultivated with all kinds of boosters and enhancers, Psycho stuff.Lungs: Don't use tobacco in spliffs with hash. |
How does a Mongoose eat a poisonous snake and not get affected by the venom in the glands behind the snake's eyes? | It's not just a matter of not eating the venom. Mongooses and honey badgers and other cobra predators are fairly immune to being bitten as well, which injects venom directly into the blood. Snake venom is a neurotoxin - it works by blocking neurochemical receptors of neurotransmitters . Think of your nervous system as ... |
So, what exactly am I supposed to DO about climate change? | Vote for people who will crush the poor in third world nations. Who do you think is cutting down rain forests? Brazilians who want housing and a middle class diet. That takes thousands of acres of land. Who do you think is polluting? Factories. Where are the factories? China and Southeast Asia. Why are they there? Peop... |
Why are certain television actors constantly listed as having a guest role, but have a major role in the series? | Typically it's contractual. If the actor isn't obligated to appear a specified number of times, then they are simply a guest stars |
Is there a difference between consuming 1500 calories in a day vs. consuming 2000 and burning 500? | On a high-school physics level, they're the same. Calories in minus calories out. On a fitness-website level, the second choice is better, as you'll be getting some cardio in and helping prevent muscle loss. On a behavioural level, and on the basis of experience Calories burned through exercise are *always* grossly ove... |
- What happens when I'm redirected to a site that says my computer is infected? | it's an attempt to install malware onto your system. clicking yes will install malware. clicking no will install malware. clicking the close window link will install malware. what you do is Ctrl F4 or go to the start menu and bring up task manger and kill the browser. now you know how easy it is to get infected |
What is socialism and why is Bernie Sanders a socialist? | Google: Socialism: a political and economic theory of social organization that advocates that the means of production, distribution, and exchange should be owned or regulated by the community as a whole._ People don't like socialists because people generally enjoy keeping power, objects, or other advantageous things to... |
Why do developing countries have higher birthrates than developed nations? | In agrarian societies children are farm hands and contribute to the economy and/or otherwise work. That's the ideal at least but it doesn't always work out that way. In industrial societies children are mouths to feed and don't do jack until they're 28. This also delays their desire to have children. |
How do we have access to so many pictures of Kim Jong Un and North Korea's propaganda videos? | Depends on the specific picture or video. Generally, NK publishes much material for internal consumption and it's either intentionally given to sources like Yonhap news or some listening station captures it over the airwaves. |
Why do antibiotics make me sun sensitive? | There are [a lot of drugs] that cause sensitivity to sunlight, including three classes of antbiotics: [Fluoroquinolones], [Sulfonamides], and by far the most widely used [Tetracyclines], There are two main mechanisms that cause photosensitivity: Photoallergenic, where the sunlight breaks down the drug and produces some... |
what exactly are the men in the DOT (dept of transportation) doing when they set up their tripods on the side of the roads? | I used to build above ground swimming pools and we used them to check the grade of the customers backyard. The tripod we used was an monocular type of thing, I've heard the new ones have lasers on them. But essentially, one guy stands ruler planted on the ground, while the guy at the tripod takes a measurement on that ... |
What exactly is the Liberal stance on illegal immigration? | Capital L means something different than liberal. But today's modern US liberal believes that illegal immigrants should be allowed to stay, given government benefits , and a pathway to citizenship. The far left believe we shouldn't enforce any border/immigration security and just allow whoever wants to come into the co... |
Why do eletronics charge at different speeds on different outlets? What affects charging speed? | Have you considered what the phone is during that time? If, for example, your screen is on while charging, it will take **way more time** to charge, because you're constantly draining power while it's trying to charge up. Conversely, if you leave the phone off and charge it over night, it will charge up very quickly. |
What is the significance of haikus? | To my knowledge, the Japanese aesthetic leans toward nature and emptiness. So the haiku pattern's rhythm is short to get that emptiness of sound. And in the japanese language, there are one syllable sounds that could translate to a few words in english. |
When receiving an electric shock from a large current it "may make it impossible for a shock victim to let go of an energized object". Why is this? | Basically think of your muscles as little machines that have to be told what to do. When the brain asks them to open, they take a break and relax. When the brain asks them to close, they contract and help your body do whatever it was trying to do. And muscles really only have those two options, relax and contract. So, ... |
Why did Apple abandon the Power PC architecture? | Economies of scale. The biggest cost of a processor isn't manufacturing it, it's designing it and building the factory. That means that the more processors you sell, the cheaper you can sell them and the better you can make them. Intel was selling way more chips than IBM, which meant Intel could invest more into R & D ... |
how spiders start their webs across large gaps like between trees and across footpaths | This David Attenborough clip shows an orb spider spinning her web. Shows it from the start when she gets that first bit done. The big webs you see across the footpaths in Australia are probably Orb spiders. _URL_1_ |
The scientific legitimatcy behind the phrase "sex with one person means you've had sex with everyone they've had sex with"? | Because if they had sex in the past with someone who has an STI, they themselves might now be carrying that STI. If they hadn't, you wouldn't be able to catch that STI. But if they did, then you could potentially catch that STI. It isn't *exactly* the same as just having sex with every individual the person had sex wit... |
Why do drug companies put out expensive nationwide, commercials in for drugs that will only be used by a small number of people, like Stelara or Tecfidera? | a) That might be cheaper than hiring a dozen reps to go places. b) Patients who think they might need it ask for that drug. c) Patients get to know the company name and ask for their drugs even if it's not that one. |
Why do people with depression have such a difficult time making decisions? | I guess most people with depression tend to overthink stuff, whether because of or causing the depression. I know I'm always thinking, constantly going over stuff in my head, I never have a quiet minute, because I can't let stuff just sit for a while. What if this happens, but what if instead that happens, what could y... |
Why is it a big deal that Bannon is on the Security Advisory Board | it potentially places the decision to legally assassinate an American citizen in the hands of a political advisor instead of a career military professional patriot. day to day? that's above our pay grade.Thank you, that was helpful. But it does sound like he can modify his information based on his own biases without an... |
How do glow sticks that you have to crack work? | Glow-sticks of this type usually involve a reaction between two chemicals . When they come in contact with each other they produce energy which is absorbed by a fluorescing dye that either coats the glow-stick wall or is free floating. That's the short version, at least. =)", 'There are two chemicals that react togethe... |
Why do we go blind when we rub our eyes? | I'm not sure what you mean by blindness - I've never experienced that. But I have experienced an inability to see *clearly* for a brief moment. So in an effort to explain that: In your eye, you have a lens like glasses. This lens is soft and able to be deformed - which is how you're able to focus on things . When you p... |
Why don't optometrist slowly fix vision with progressively weaker lenses? | eyeglasses don't fix your eyes, they adjust the image before it gets to them. your eyes are unchanged |
How did chicken become the universal meat that almost every single culture in the world eats? | Chickens grow fast and they're not hard to raise. For what it's worth, pork is actually the most-eaten meat in the world, and in the US, it's only around 2014 that it became more popular than beef. The only thing that makes chicken arguably more *universally* eaten is that it's a bird . |
What is a Sheriff? | Sheriff can also be a surname - my surname is Sherriff which is only a mild misspelling of it, there are Sherifs, Shirifs, Sharifs, lots of us that all have the same root in 'Shire Reeve' - way back when, a lord or duke or whatever would employ a shire reeve to maintain a sense of order within their lands. Eventually w... |
why haven’t we been to the moon again since 1969? | We actually went a few times since 1969. The last Apollo flight to the moon was in 1972. _URL_0_ Realistically though there's no reason for us to go to the moon again when other planets offer more possibilities and are more sophisticated than the Moon.Cost versus benefit. Going to the moon costs a lot of money, and sin... |
Why is a mouse superior to a controller when aiming in First Person Shooters? | Because the movement of the mouse correlates directly to the movement of the camera, while the movement of the stick correlates only to the *speed* of the movement of the camera. So, to move your crosshair on the screen 2cm to the right, you have to move your mouse maybe 5mm , which very quickly gets burnt into your mu... |
Why is the sound quality so much better when using Skype or FaceTime as opposed to a regular phone call? | [This image] should clear it up. Your voice vibrates air molecules at a number of frequencies. There are some primary frequencies, which hold most of your voice and can be used to determine most of what you're saying ). But, your voice exists outside of these frequencies as well. When phone started coming out, I mean i... |
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