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How is a sniper rifle more powerful than most other guns? (i.e most other semiautomatics and automatics)
First off, sniper rounds are specially made for the task. They provide the extra power needed to fly accurately at long distances. The long barrel of a sniper rifle further helps with accuracy. SMG and assault rifle rounds on the other hand are designed to be fired in quick succession. For this role, you can't have the same power as a sniper round, as the kick will make it unweildly to use.
How do they freeze the moment on camera and then spin around a certain point 360 degrees?
The general way they do that is to have multiple cameras. They either do it on a green screen and cgi out the other cameras or position them to they don't look like cameras to the other cameras. Then they stitch it all together in a computer.
Why are we told to save water, when 70% of the earth is made of water?
It's not about running out of water. It's about running out of water in places where it is cheap enough for us to extract and use.
How can countries just decide to be "neutral"?
Sweden stayed neutral by, among other things, having iron ore Germany needed. Since Germany didn't have a valid blue water navy, they couldn't exactly invade Sweden and start shipping the ore themselves, as Sweden's ships were safe from being sunk but Germany's weren't.
What do people who go to seminary actually learn for four or six years? Are they just rehearsing ceremonies and learning Bible history? What are they actually tested on?
I can only speak for Episcopal seminaries, but from my understanding Catholic and Lutheran ones are similar. You take courses in things like church history, scripture, theology, homiletics, biblical Greek/Hebrew, ethics, education, etc. There are also practical theology courses that help teach you things like how to help resolve problems that might arise between people or within your future congregations. Like at most grad-schools, most evaluations are largely essay-based rather than multiple choice/true or false. You also have field education where you help out at a church under the guidance of an experienced priest. As far as your example about performing services, there is something called liturgical practicum where you practice forming and then performing the various services. And to help test other abilities you're given scenarios that you have to work through. You also have to have periodic psychological evaluations. At some point you also have to have a unit of Clinical Pastoral Education where you spend three months working at a hospital and work as a sort of chaplain intern while also receiving additional training. Meanwhile you have to have periodic interviews with various committees to help decide whether you should continue on the path to ordination. Basically they try to give you the tools necessary to be an effective priest, but you can never possibly learn every possible scenario you may encounter. Edit: I forgot homiletics! Preaching is kinda important .
Cell phones conversations are crystal clear, but high-stakes air traffic control conversations are done on crackly-ass radios
A large part of the reason is that changing this technology requires you get approval from an enormous number of stakeholders. In theory, you could start with a single airport that had an option of high clarity communications. But then you'd have to wait a long time for manufacturers to design compatible radio sets. You'd have to wait for the airlines to install those compatible radio sets. All during this process, you'd need to be running two parallel sets of radios in your tower. Eventually, you'd have every airport with the new radio sets, every plane with the new sets. But it would take a long, long time and before you even began the process you'd need endless meetings between all the players to decide on standards. Even worse, you'd need to get this agreement across national boundaries.In addition to what /u/Qwerty_Resident said, you also have to consider that radio is a technology in which self-contained units can communicate amongst themselves with little risk of failure. A cell or other digital system is much more complicated, and therefore somewhat less reliable.
Why do we sweat when it's 90°F outside, but our internal body temperature is 96.8°F?
you sweat as a method of internal cooling. There are other ways of doing it, such as via respiration . When you sweat, what your body is doing is putting a heat-conductive fluid on your skin, and the movement of the air essentially refrigerates your body. As air moves over sweat, the sweat evaporates, drawing some heat along with it, cooling you. The reason we sweat more on hot days is because the hot air is much less efficient at evaporating closer temperatures than temperatures significantly colder than itself, so the body compensates by drenching you.
Why are cable companies constantly trying to push their home phone service? Most people already have cell phones and it sounds like an added burden to their existing infrastructure.
Money, if they can make $10/mo off of landline service, why not? > added burden to their existing infrastructure What burden would it create? Adding landlines aren't that difficult.Because they want to stay in business. A lot of people still prefer home phone services, especially for emergencies. 911 cannot trace your number easily if you are using a cellphone.
Why did we evolve to the point where we have to wipe our ass when no other animal has to do so?
Yes, it is the price we pay for intelligence. We don't strictly speaking *have* to clean up after ourselves, but we are aware of the health downsides of not doing so, and the social costs we would incur if we walked around coated in poop.
Orgasms, how do they work and why do we even have them?
Pigs cum for 30 minutes. I don't know why, but my guess is that it's an evolutionary advantage to want species to have sex, and an orgasm is certainly one way to make it happen.If sex wasnt so much fun, it would be disgusting lolMy girlfriend is a biologist who used this for a project at university. The leading theory is the upsuck theory which suggests the contractions assist sperm in reaching the egg. A study found women were more likely to get pregnant if they experienced orgasm within 15 minutes of insemination. Hope this helps mate.As for why we have them: they feel really good, and that makes people want to screw and hopefully procreate, and that's the primary method of evolution, right? Ah ha.
why don't ATMs give out $10 bills
Used to restock ATM's after hours and weekends. The machines have cartridges or racks to hold the bills. Many machines would repeatedly run through all the bills in one cartridge by Sunday, requiring a service call to restock from a bag of extra cash stored in the ATM safe. Using a single denomination for all cartridges would eliminate those restock calls, reducing the bank's expense. Would also reduce the risk of the machine dispensing the wrong denomination. I've seen it happen.
Why is it that computers get slower as time goes on, even when you factory reset it?
Dust can also heat up your computer to a point that it runs slower on purpose to prevent damages. But usually it's the software updates fault.
How does a PR incident lead to the decline in value of a companies stock?
It doesn't directly but can if there are fears of material impact on company's future performance as a result. Yesterday, United's stock didn't really budge. Today, it's down a bit, but some of that's just the stock market in general being down. It's also likely attributable to the level of press this incident is getting in China, as United has invested a lot into opening up routes to China and marketing them. If the Chinese stop flying United to the U.S., that could actually impact their bottom dollar.
What is PIPA and how is it different from SOPA?
Protect IP Act. It's the Senate version of SOPA.whoa! I just realize you could play youtube videos at increased speeds. I just saw that at 1.5x speed. Love it!
Why most of the games show posion as in green colour? Is it true?
It's arbitrary. In dark souls and bloodborne poison is purple and green is endurance In Mario green is an extra life
How did early man come across advanced food recipes, like for example bread, when it seems too complicated to guess or figure out on your own?
Every food has a proto version. Bread used to be just flower and water baked over an open fire. Innovation and creativity drive more complex ingredients and recipes. We try something new, if it tastes good we tell our friends, they do it, someone else adds something, tastes better, sooner or later you're gonna have 20+ ingredients and a 20 step recipe on how to prepare it.Well. Unleavened bread is ground wheat and water. So not that complicated. Yeast grows naturally and can be in flour or just collected on stored flour. Add salt when you have it cause it tastes good. Then later some kind of fat . Probably evolved over time like thatAlso: Bacteria, yeast and mold invented a lot of foods and beverages for us. Just add Time. The history of fermented foods is very illuminating.
How did they put photos into the newspapers when there were no computers or scanners
Layouts of each page including original photos were made up in large format ~4' tall and a picture was taken of each completed page.Most of the earliest "photos" in newspapers aren't actual photographs, they are extremely precise engravings which were made by hand, using a photograph as the source. Later they started making "engravings" where, instead of using light-sensitive chemicals that tint a photograph a certain color, they used light-sensitive chemicals that turned to acid , and then the acid burnt an impression of the film into a copper plate. They still needed a few more technical improvements before they could put these photographic plates into printing presses, but that's the basic idea.
How is the Pirate Bay still up?
You can also look up stuff and legal battles about the Pirate Bay. Basically, the US knows that they can't shut it down since they don't have jurisdiction so they have tried to block the IP address or something here in the states so people here cannot access the site. But all Pirate Bay did was change their address and now everyone can get there again. The US tried to submit the new IP address to get banned and after all the paperwork and legal stuff went through, they just switched addresses again. I think I read in the article that they have over several billion different IP address configurations that they can use. Once the US figured that out and they realized that it would be a never ending cat and mouse game to try to get them banned, they stopped for the moment. They are trying to figure out other ways to bring them down, which includes passing new laws here in the states. But unless we essentially become China where we control every website anyone can go to, the Pirate Bay will never get shut down.
Why use the term African-American?
Since reddit would rather indulge in the usual racist circle jerk than answer your question, I'll give it a shot: For a long time, blacks in America were told that they were nothing. They were told that they had no language, no country, and no family. They were punished if they tried to speak their own languages or remember anything about home. Black people even had to lose their names and get new American names. Lots of time passed and things changed. Black people in America were free and had more rights, but they still missed the history that had been stolen from them. They started to use the term African American to describe themselves, indicating that they did have a history. Even if they didn't have family trees or knowledge of their specific roots or language or even names, they were able to acknowledge one source of belonging. Nowadays, a lot of people who have the privilege of knowing their roots don't understand how lucky they are. So they complain about how some people choose to describe themselves. It's actually pretty sad that people are walking around branded with the names of their grandmothers' rapists yet others get mad if they want to feel some sort of connection to history.It's a way of describing their ethnicity, except, seeing as there is more than one ethnic group in the US, you might use labels to distinguish them from each other. "African-American" says to me: An American who's ancestors came from Africa. I'm an NZ European, I'm a New Zealander, but to distinguish from the Maori , my ethnic title references my ancestral heritage. --- Of course it could be seen as discriminatory to label black Americans as "African-American" while the white Americans are just labelled "American". I expect this isn't so much racism against black Americans, as it is Americans not wanting to be called a "European American".Don't say African American, it's stupid. I'm from Germany and black, so you don't call me African American, you call me Black or a Mutt
Why is AC (current) accepted to be better than DC?
ELI5: DC is better than AC. Only non-electricians think that AC is better. There is a ton of misinformation out there, even in the comments here. The facts are: 1. You can store DC in a battery. You can't with AC. 2. DC is safer than AC! Check out ElectroBOOM on youtube. 3. You can transmit DC more efficiently than AC. Wikipedia HVDC. 4. All modern electronics runs on DC. You might now ask an ELI5: Why do we use AC instead of DC? It comes down to transporting electricity. You have to use very high voltages in order to minimize your losses. The higher the better. Until very recently there was no known way to efficiently convert DC to high voltage and back. AC can be converted using a transformer. No fancy technology involved, just copper wire wound on iron plates. Transformers can also be surprisingly efficient . So there you go. Our entire grid is AC due to the fact that it is easier and cheaper to transport electricity with 100-year old technology. However DC is making a comeback. Thanks to modern DC-DC converters, high voltage DC transmission lines now outperform AC transmission lines in every aspect. The renewable energy trend with Solar and batteries is pushing the case for DC in the home as well.
Why don't Americans want National health insurance?
I honestly believe that since the end of WW2, anything that can be compared to, or painted with the same brush as Communism/Socialism scares a lot of people, Conservatives especially. They fear what impact it will have on Capitalism. I think younger generations will allow for National Healthcare to become a reality, but it probably won't be any time soon.
how a computer (program) understands games.
This is more or less the problem with game AIs for modern video games. How video games deal with this is that they allow AI to cheat everywhere possible, and then they try to make the computer act stupid enough that you won't notice the cheating. Like, first-person shooter AIs controlling enemy units usually have their own separate, simplified layout of the map with hand-made paths connecting different points. Player character is mapped onto this grid as closest point or so, and then AI does some simple algorithm to determine if it sees you or not. It knows where you are in this simplified grid, and in the game world, but usually AI specifically has built-in some set of rules which makes it ignore you until you, for example, make noise near them, or walk to their sight. Actually the Google Deepmind, which recently made go AI that beat human champion, is trying to make the first video game AI that does not cheat. They try to make AI that plays Starcraft against human opponents and it only sees the same visual pixel data humans see. This hasn't really ever been even attempted before, except for very simple 2d games, it's the forefront of current AI research, and we don't know how well they will succeed. They may release something about this project in the coming years. Any game AIs or whatnot, they are just cheating when they play the game. Games itself are designed as set of clearly defined rules, which then require tons of processing to turn into visual format. You almost never do that process backward, try to turn visual data back into simple rules. Programmers are almost always keeping the simplified black-and-white data saved somewhere if they need to use it somewhere, and they just use that.
When did "Black" become more socially acceptable than "Negro" or the like?
Black is also used as a political identity marker. The Black Consciousness Movement started using it to refer to themselves in the 60s. The word 'Black', for them, encompasses all non-white ethnicities. It is used to engender solidarity, and to take pride in their collective identity.The answer is in the 1960s and 1970s. In the 60s "negro" and "black" were both commonly used. In the 70s "negro" wasn't used much anymore and "black" was mostly used. By the 80s "negro" had virtually disappeared, and had been replaced by "black".Did anyone ever ask if they wanted to be called Black? Don't mean to hamper on an old point, but I'm Pinkish, not white. They're brown, not Black.
Why is Facebook buying Instagram such big news?
Instagram is a tiny company of 10-20 employees that makes $0 with no monetization scheme. A $1bn buyout isn't bad.
Why are so many comments marked as deleted?
Sometimes I'll miss read or not read the entire subject and post something that doesn't exactly pertain to the topic so I'll delete it. Not sure why everyone else does it
How is the perception of time slowed in lethally dangerous situations?
I think its because your brain is taking in more information per second so it seems like everything is taking longer to process. I'm not sure if your reflexes actually increase. I was in a car that was doing 70mph into a tree and I did feel like time slowed down, but I didn't have any time to react to anything. I saw what was going to happen and just came to terms with whatever the results would be.
If obesity is scientifically proven to shorten your life and lead to health problems, why is the HAES movement gaining popularity?
Media Outlets are controlled by and large by corporations . So when you read newspapers or watch the news, you have to remember that it is being funded by a corporation, that corporation is funded or controlled by somebody or a group, and that somebody or group has an AGENDA. There was scientific proof that cigarettes were unhealthy for us very early on, yet the cigarette companies would still promote that smoking was part of a healthy lifestyle on their cartons until it became illegal . So basically, the reason that you read about being people advised about why it's good and fun to be overweight, is because they are trying to sell a certain lifestyle to you. If you want to know the facts, and just the facts, stick to scientific studies.> Is there any real scientific proof? For being overweight? Yes. For being obese? Not so much. _URL_1_ This article discusses a [study] from 2013. It is a meta-analysis that looked at the mortality rates for 2.88 million individuals. The TLDR is that "overweight" people were 6% less likely to die than "normal" individuals over a given time frame. Obesity still led to higher mortality versus being normal or overweight.It's gaining acceptance among young people who don't have health problems yet. They just have no concept of what it means to have heart problems, diabetes, or a host of other complications stemming from obesity. They assume those things will never happen to *them*.
Is Saudi Arabia's rejection of its Security Council seat anything other than symbolic?
> Are the rotating memberships of the council relevant enough to make this a big deal? Usually not. Without looking it up, can you name any of the non permanent members of the UNSC right now? No? Neither can I, and I pay a lot of attention to politics. But it gives those countries a seat at the big kid table - and if they have ideas for whatever the worlds problems of the day are that's the place for them. Of course some countries are influential enough they will be listened to if they have an idea, UNSC seat or not. > Or is it an attention-getting tactic that ultimately doesn't mean much? Mostly this. They are expressing their discontent over the USNC's failure to authorize the removal of Assad. 2 years of sitting in meetings at the big boy table wasn't going to change that. No one is actually being punished for using chemical weapons, and Assad gets to stay in power in Syria. At least the chemical weapons are going to be gone, but 1/3 is more of a 'good start' than an 'end goal'. The Saudi's are also, as other people pointed out, trapped by their relationship with Israel. They cannot be seen to be publicly acknowledging the existence of Israel at all, even though they well, have dealings with the Israeli's. If there's any prospect of an Israeli-Palestinian agreement they cannot be publicly supporting the US unless the Palestinians get a state and the settlements get disbanded, so a UNSC seat would put them in an awkward position. And that's pretty much it. Their main big issue - Assad, the UNSC basically didn't do what they wanted, and they can't change that. Their secondary issue they just want to not be involved in publicly until it gets sorted. Well, and they get some free press for complaining and a mild political win with their regional allies.
With today's technology why is it so hard to make counterfeit coins or counterfeit bills?
For coins, it's not necessarily a technological investment, but an economic one. For anything less than $1 coins , the cost of purchasing and setting up machinery, along with the raw materials would mean that the criminal would have to move a lot of fake currency to break even on the initial investment. Currency notes have a lot of features that are extremely difficult to counterfeit. A criminal could choose to pursue low value notes, knowing that they may be less subject to scrutiny, but that would also mean moving a large volume of fake notes to recover investment and make a profit. Attempting to create and pass larger notes would require a much larger equipment and time investment, but even then a 'perfect' fake is nearly impossible, and the risk of getting caught increases dramatically when trying to pass larger notes.
What does adrenaline do to a mom that lets her lift a car when she sees her child in danger?
What is involved is the recruitment of all the motor units in a muscle. When you use a muscle, like your bicep, you are not stimulating all of the muscle cells in your bicep to lift something, you just recruit a few. The more force required, the more motor units get recruited. A motor unit is a single neuron and the muscle cells that neuron stimulates. Even when lifting heavy objects under normal conditions, not all motor units are recruited in order to avoid muscle tearing. But in a desperate situation there are additional signals coming from the fight or flight nervous system and epinephrine and norepinephrine signals take away that 'safety ' setting and briefly you are able to lift extremely heavy objects, like push a boulder off your body.
Is there an easy, painless way for me to discharge static electricity without shocking myself and my family?
Buy a humidifier. More humidity in the air will dissipate the static electricity. That is why you don't have the same problems in the summer or on damp days. More humidity will make the air feel warmer, and prevent your nose and sinuses from drying out. Making you more comfortable, and preventing colds and flu. Your furniture will not dry out and get loose joints either.
How come a ceiling fan does not cause air to heat up, although it increases the speed of the atoms in it?
They do. But the thermal energy added by the fan is so small and dissipates so fast, you can't feel a difference. Also it's totally outnumbered by the cool feeling of vaporization of moisture from your skin.
- An anechoic chamber at Orfield Laboratories in Minnesota has negative decibel levels (lower than -9db). How is this possible?
They're dB SPL and they're referenced/scaled by the lowest pressure wave a human can detect. Negative dB simply means that the sound levels in the room are below the reference level
Why does it seem like verses of the Qur'an are always sung as opposed to spoken?
The Qur'an is meant to be read in a very specific manner. This includes both pronouncing the sounds properly and pausing in the right places. By setting the words to a tune, you can accomplish the latter more easily. In Judaism, when we read from the Bible in Hebrew, it is sung as well.
what is the advantage of the multi-rotor design used for drones over that of the conventional helicopter rotor setup?
You don't have to worry about collective and cyclic pitch. Just spin multiple motors harder or slower. Vary motor speeds to steer. Much less complex.
The effects of keeping a limb "asleep".
Depends on how long the nerve is compressed. For example, Saturday night palsy is from falling asleep with your nerve compressed. Effects can last for weeks to months if you're unlucky. _URL_1_ has a good article on the issue.
How do bus/train companies earn their money from my universal pass?
For rail in the UK revenue is shared using the [ORCATS] system. The data and formulae used are not public knowledge so it's impossible to say for sure but usually it's based on the most likely routes alongside frequency For buses I suspect it's much the same thing. I don't know about your part of the country but here in the West Midlands drivers press a button which says the type of pass that's used. This leads to solid data on what journeys people go on.
Why isn't there a "life skills" class offered in highschool to teach kids how to change tires, get credit, and other necessary information to function in the real world?
The debate over teaching applied skills or academic knowledge is ancient. Generally, testing academic knowledge is easier to apply, teach, and standardize. Your physics class taught you the necessary information to deduce how to change a tire, your mathmatics class taught you the skills necessary to use a credit card. A disconnect between knowledge and its application is common among new learners. Mentorship helps to unpack that knowledge, but it seems with each passing year there's less of an interest in asking for and offering help. Then again, it can all be easily learned by a curious mind with internet access.
Why do famous people get paid more for making entertainment, than professions like builders, doctors, farmers who provide what people need and save lives?
Larger customer base. Millions of people paying someone a little bit of money > 100 or so people paying someone a lot of money. You think healthcare is expensive now, imagine how much you'd be paying if your doctor made as much as Eddie Murphy. Eddie murphy making as much as Eddie Murphy doesn't cost you very much. Seeing one of his movies in theaters will run you like 8 bucks. The argument can be made that an individual famous entertainer provides more value than an individual doctor. An individual doctor provides a shit-tonne of value for a few people but a famous entertainer provides a little bit of value for millions of people. It adds up.Popular actors can earn the companies they work for hundreds of millions of dollars a year. How many farmers or doctors can say the same?What everyone has said is right. It's basic economics: supply and demand. Everyone's touched on the demand aspect. But think also about supply. If something has many "substitutes" it will cost less. That's how competition works. If a builder charged me $20 million to build a home, and another would charge me $10,000 to build exactly the same home, exactly the same quality, then guess which I'll choose. Using movies as an example: Famous people have fewer substitutes. Not only because there's only one Leo, since there are other good male actors, but also since there are few studios producing few movies. Your choices for entertainment product are limited. So demand is high, supply is low, and now you're paying $15 to see a movie, and the studio is paying $200 million to the one and only actor for the role, because without that actor, the film would be terrible.
how do quicklight hookah coals work?
Thanks for the reply guys, that's interesting to know. So is it the oxidizer that is causing the many little sparkles of heat while in the lighting process?
What is the consequence of a judge overturning the ruling of the jury?
Since you didn't mind hearing about other countries : We only have jurys for freedom of speech cases, and they need a supermajority to decide that whatever is discussed is criminal, but they have no say in sentencing.
Why was everything so much bigger when dinosaurs roamed the earth than today?
There was this article a couple of months back saying how bacteria hadn't evolve to break down the carbon within wood, as it was a relatively new material consisting of very strong fibres. The only carbon that were released back into the cycle were the ones within softer material like greenery. This locked up the carbon for 50million odd years, give or take 3 months, and as a result of that, oxygen levels were as high as 30%. This resulted in really large insects, some of the more common things like dragonflies were as large as 2 feet long. I'm on my phone so I can't fact check, and I'm pulling everything from memory. Also, not sure if it was within the same era, but it sounds like a plausible explanation to me. Edit: Ahh dammit /u/workpuppy beat me to it. There goes my chance for reddit gold. Edit edit: Changed to user instead of subreddit.
What makes certain types of cardboard (like pizza boxes) un-recyclable?
There are too many comments for me to scroll through them all, but in case no one said it yet, it's important to realize there's no actual recycling infrastructure in the US, so the things you can recycle in your municipality may not be the same as the next one over. It has to do with the technologies in place at the recycling center, and what they're able to sell in the market. Our recycling center just recently started taking those plastic berry holders because they put in new equipment to help sort it better, but they also found a buyer willing to take it from the recycling center. However, they still won't take the plastic trays from girl scout cookies. It's important to know what your particular recycling center will and will not take, if it's single stream, etc. Recycling was basically a grassroots effort back in the day that enough people cared about to make it a thing, but there's no overarching infrastructure for it.
What are the "toxins" being removed from your system after a massage?
There are no toxins as such in your muscles. However, if you are getting a massage after exercise, there may be some lactic acid build up in the muscles, which will beremoved from the muscles faster due to the massage. There might also be some chemicals produced by muscle breakdown .These are not actually toxins, and will be flushed out from your body normally. Edit: Drinking more water is, regardless, a very good thing to do.
Movies play at 24 fps but are smooth due to motion blur. Why isn't the same technology implemented in games?
In order to properly calculate motion blur, you need to do all the math about where things are moving & render that into the frame. If your graphics card is already having trouble rendering enough frames for motion to look smooth, it's not going to be able to do *more* computations without slowing down the frame rate even more.
why do restaurants as a whole have an atrocious failure rate, but chain restaurants consistently stay open?
The chains do bring a lot to their franchisees -- marketing, training, supply chain, and proven processes. Now, the local restaurants? They don't have all that. But why do so many fail? It's because it's very easy to get financing to start a restaurant, which means lots of people can actually start one -- even people who have no business running, well, a business. Restaurants are easy to get financing for because so much of the capital used is repossessable and can be quickly sold to the next new restauranteur.
How can motorcyclists lean so far when turning without falling?
you got two forces at play here. gravity is pulling the bike down and centripetal force is pulling the bike out. think of those forces as arrow in the direction and the length of the arrow is representing the strength of the force. the sum of those 2 forces will be an arrow going diagonally down and outside, building a triangle with the original 2 arrows. that resulting force is pulling on the bike and if it's pulling at the same angle that the bike is leaning, you got a stable lean. if it's going more to the outside, the bike will stand up and if it's going more downwards, the bike will fall over. the faster you go, the higher the centripetal force is and the more lean you need to get it balanced. how far you can lean is limited by the bikes shape and the tires .I think the simple answer here is this. If you stop really fast while going forward the momentum launches you in the direction you were going. You experience this whenever you hit the breaks hard in a car. Whenever a bike turns right the momentum changes the balance more to the left. Try turning really sharp right on a bicycle and notice the direction you fall. Because of this the angle of balance for the biker changes. To counteract the momentum pushing him in the opposite direction he can lean in the direction he is turning. Because of that force pushing him in the opposite direction he never falls.
If two objects are traveling and hit each other does that produce more energy than a single object hitting a wall? Why or why not?
Yes. If you have two cars that are going 50 mph and they collide head on, the impact is at 100 mph. So basically it's twice as powerful as a car hitting a stationary object at 50mph.
Why are the armed protesters allowed to continue holding the federal wildlife refuge, even though they are destroying things?
> I don't understand why the military hasn't removed these people that have seized control of the refuge. Because when that has been tried before it ended really badly. The Fed strategy of waiting them out and charging them later is an ingenious way of defusing the situation.I haven't been following this story to closely, but I 'd imagine if they believe the protesters will "defend" themselves, then the military or government would look bad by starting violence. They 'd wait until the protesters take a shot that doesn't look forced by an "aggressive" police force or something. I don't think to many people take these guys seriously, thinking they will give up before to long. Besides, so far, they have remained peaceful other than occupying a building. Keep in mind, they are pretty much in the middle of no where. I would think most people have never even heard of the town until these guys acted up. The government prolly doesn't care about some little shack in the middle of no where. Now, if it was in New York City, DC, LA, they might handle it differentlyAm I the only one that remembers that the military can not be used on US citizens?', "Oregonian here. My opinion is, these outsiders are just invaders to the state. They need to be rounded up and hauled off to jail. They are domestic terrorists and that's simply it. And anyone that's arguing that ranchers are the ones who are being treated unfairly because the federal government is steal their land, well they need to shut the fuck up. The land originally belonged to the native Indians I that area, if anything, the land needs to be returned to them, not these fuckin ranchers that set forest fires and nearly kill firefighters.
What was grocery shopping like before scanning?
I asked my grandpa real quick and he said people didn't buy in bulk as much. You'd go to the store and get a loaf of bread, some milk, eggs, and a few other things. People weren't getting heaping grocery carts full of frozen meals and stuff. That being said, yes it was still slower. And the cashiers had to be really good with thier basic maths skills.
How do life insurance companies make money if everyone will die eventually?
Insurance companies don't just sit on all that money they are getting. They invest the money you give them until they have to pay it out.
why do people ask simple questions on ELI5 when they can simply google it for less time?
* often it is difficult to phrase a question in the precise way to get an answer out of Google* often Google will give too many answers, and it is hard to know which one is correct* Google doesn't let you ask follow up questions
Why do protestors block streets and highways? Wouldn't this turn a lot of people away from their cause?
In the West at least, protesters face a dilemma. If there's violence at a protest, then that's all the media will talk about. If the protest is peaceful, the media just ignores them. Blocking traffic is a compromise as at least the media has to acknowledge that a protest is taking place.Because media will cover a mass amount of people blocking the streets. If they had a designated protest area that was a previously approved space for the hours of 9 to 6, literally no one would care.
How women, and female animals, don't get pregnant from beastiality (NSFW text).
A variety of things come to mind: 1) Getting sperm to the eggs. One way to help increase the odds of fertilization is to have the eggs release chemicals that cause sperm to swim in the direction the chemicals are coming from. This gets the sperm in contact with the eggs, but the chemicals are species-specific, so only same-species sperm would react to such stimuli. Not only that but sperm may be better adapted for motion through the same species' reproductive tract than that of a different species. 2) Eggs are surrounded by protective layers like the zona pellucida. In order to reach the eggs, sperm cells must bind to receptors on this layer's surface. ZP1, ZP2, and ZP3 are the names of some of these receptors. This interaction between the sperm and the zona pellucida is called the acrosome reaction. 3) Once the sperm gets inside the egg, assuming that's possible, the DNA must be arranged in a manner similar to that of the egg. kimmisong's explanation covers this.The definition of a species is that two individuals of a different species cannot mate
Why is it legal for ATT/Tmobile/Verizon to throttle my data after 5GB if I purchase 15GB per month?
It's one of the reasons I dropped ATT and couldn't be happier! They throttle way too much, fuck ATT.I work for AT & T and can tell you that it only is going to be throttled after 5gb if you have the unlimited data plan. The new mobile share value plan does not get throttledI guess because they still can make more money that way, even if they lose customers. _URL_0_', "Phone companies don't like it when people use colossal amounts of data because it clogs up the system and slows everything down for everyone. That's why the major phone companies don't allow unlimited data because it slows everything down. The phone companies throttle your data because if there are too many people in one area with big data plans it would also clog up the system from everyone using all the data the possibility could.
What would happen if you gave antidepressants to a person without depression?
Not all depression is equal. I have bipolar disorder, and while depression is part of it, it is not the same disorder as standard depression. Bipolar is alternating episodes of depression and mania. Giving someone with bipolar an SSRI often actually triggers mania: > The symptoms of mania include: elevated mood, inflated self-esteem, decreased need for sleep, racing thoughts, difficulty maintaining attention, increase in goal-directed activity, and excessive involvement in pleasurable activities. These manic symptoms significantly impact a person's daily living. > _URL_1_ & _URL_0_ A lot of people with bipolar are diagnosed when they having a depressive episode, and you can't tell the difference from regular depression, so that's what you assume is going on. So you take antidepressants and you get better! In fact, you feel great! SO awesome. Very productive! I'm amazing, I'm going to change the world, who needs to sleep, isn't everything FANTASTIC?! Hypomania, the more common lesser form of mania , can often be sustainable for quite a while. I was diagnosed with bipolar after being depressed, taking Prozac, and *going out of my mind*, absolutely off the deep end, hypomanic. But I thought it was great! I was super happy! I mean, my life was falling apart because I was batshit crazy, impulsive, delusional and scared people. But hey, I wasn't depressed, so the drugs were working!! It took almost a year to figure it out and change to suitable medication. So yeah, that can happen when someone who is not actually depressed takes an SSRI. It made me TOO happy. Basically, too *everything*. Too much energy, too many impulses, you're gonna have a bad time.
How do despots in poor countries manage to live such extravagant lifestyles?
Even a country under sanctions will still have a way of generating wealth and income. It's nearly impossible to completely isolate a country, and even if that were the case wealth can be produced internally. Any good produced can be usurped. At that point all a despot has to do is take the wealth for themselves while giving the peasants a small share just enough to keep down revolts.Even the poorest countries in the world have GDPs measured in the hundreds of millions. Haiti, for example, produces 8 billion USD of goods and services each year. If you are a dictator and you manage to siphon off 5% of that, you have $400M a year to play with.
How do Web Genies like Akinator use the questions to guess even the most obscure things with apparent ease.
Good coding, learning and many, many people answering. It's simple as that. It's just algorithm looking for patterns, especially based on previous questions.Has anyone else noticed that Akinator asks redundant questions often? For example it'll ask if the character is human, you respond "yes", and then one of the following questions will be something like "is the person you're thinking of a breed of dog?"?
How do US school voucher programs, which send tax dollars to religious schools, not violate the separation of church and state?
They provide money to schools which provide certain educational opportunities to their students. If the schools also provide additional things that the parents want their children to receive, the government doesn't care. The government also funds poverty programs that include religious components, based on the food or shelter they provide. Separation of church and state means that the state doesn't fund the religious parts of the activity, not that religious groups are not eligible to participate in state-funded activities.
Why is adopting so expensive?
Lots of paperwork and government oversight required. But I'm sure unofficial adoptions are cheap in 3rd world countries if the government isn't involved.
how script writers for TV shows know how to make each episode’s plot fit the timefame.
When writing a script, you can usually estimate that 1 page works out to 1 minute of screentime. It can vary depending on whether you have a lot of action or a lot of dialogue, but it's a good rule of thumb. You'd take that script to the set and shoot the scenes. Then you take the footage to the editing room. The editor has to assemble the footage into its final form, and they are the ones responsible for trimming it to the exact runtime. They can cut scenes to save time if needed. For fine tuning, they can choose to extend or reduce shots by a second or two. They usually don't do it for TV shows, but if they need an extra shot or two they can call the actors back.
Wouldn't this be a big reason for rising health care prices?
Lots of people are questioning the insane cash prices for treatment of any kind. That's what they *mean* when they talk about rising healthcare costs, and that's one of the things reform proposals are trying to address.
Why is CTE brain damage such a hot topic in the NFL, but don't hear anything from the Rugby community?
I've played both and the way you tackle in rugby is different. Football I was taught to put my head across the body, and arm tackling is bad because they are easy to break, but rugby you are taught to tackle with the head behind the body and go for the legs so you don't get a knee to the head and get knocked out since there is no helmet.I played rugby briefly in college We were taught how to take down an opponent, which was less violent than brute force. Basically, we drove into them low, using one shoulder, "bringing" them down, grabbing behind the knees rather than just slamming into them .not sure if I'm explaining this very well. Not that the sport is *gentle* but it's more subtle than footballRugby just like bare knuckles boxing is quite a lot safer than helmeted football or gloved boxing, simply because you naturally avoid head on collisions when you are not wearing a helmet. Bare knuckles boxers hit less hard because hitting without gloves hurts.You never *ever* lead with your head in rugby because it would be idiotic without a helmet. Without all the protection you learn, very quickly, to play in a way that doesn't fuck you up in the same way.In rugby, the players are more careful. Nfl players just bash their heads together in hopes of moving the other onto the ground. Rugby players use more wrestling strategies and grabbing, instead of bashing.If you aren't wearing any pads you tend to be more aware of where your head is hitting and how hard
What is breaking inside ear when we're losing hearing?
There are two parts of the ear that can get damaged that way: The eardrum, which is a membrane separating the outer ear and the middle ear . It functions just like a speaker driver as in it's a membrane that's vibrated by the sound travelling to your ear. During harsch pressure changes the eardrum can break and does therefore stop vibrating wich stops the sound going to your inner ear. The eardrum will, in most cases, heal and you'll regain most if not all of your hearing. The other issue, and that's the one you'll hear most people talk about is the nerves that live in your inner ear get damaged. These nerves are like tiny hairs that pick up different frequencies of sound . These hairs are extremely delicate and get damaged easily by loud noises/music/whatever and once their damaged they don't function correctly anymore and there's no way of fixing them. Since these hairs are the nerves that transmit what you're hearing to the brain, if one gets damaged the brain won't get a signal anymore, which translates to hearing loss. And since the nerves for the higher frequencies are more sensitive they often get damaged the quickest.
Magnets stick to each other, and magnets stick on refrigerators, why don't refrigerators stick to each other?
Magnets are attracted to the steel inside the refrigerator door. The refrigerators themselves have no magnetic properties they just have ferrous metal inside them, therefor they don't stick together.
Is the standard order of the letters in the alphabet "random", or does it have a specific thought/system behind it?
Unfortunately, nobody really knows why this specific order was chosen. It evolved from much much order alphabets and remained similar ever since. In my opinion it does make some sense that 'A' is the first letter since it's probably the most basic sound ), but the rest of the order does seem arbitrary. Edit: Perhaps I should have been more accurate - the first letter in the original Abjad writing systems, which includes languages such as Arabic and Hebrew, and whose alphabetical is the base for the Latin alphabet, is the glottal stop.No idea, but it did lead to the ampersand. " & " was the last letter of the alphabet , so after A, B, C, .X, Y, Z, and per. se. "And". Andperseand became Ampersand.
Why is there such vast fluctuations in prescription drug prices?
If you're in the States and are going to Walgreens or something, call a local Costco if you have one. Ask if they have a generic for your med. If they do, it'll be ridiiiiiiiculously cheaper. My Effexor XR generic at Walgreens was $150/month. At Costco, it's $20/month.3 words: Supply and Demand.
How it that our ears hear so bad compare to other animals?
Compared to which animals? We may have less hearing functions, but we also don't rely on them as much. Natural selection has brought us many advantages, but also some things we're less reliant on.Humans are generally not prey. We hunted. Therefore, our survival was not really dependend on our hearing. If you think in terms of good hearing, you think of prey animals. They need hearing to warn them from threats, their ears can rotate so they can pinpoint the direction the sound is coming from. We don't need it as much, and therefore it didn't evolve as much.
Why is that all the top 20 prestigious universities of the world are in U.S yet U.S. students score below international averages in math and science?
Would you mind providing a source for this top 20? One can't imagine that Oxbridge or U of Tokyo, or the Adelaide Community College for Community Students of a Communal Nature, aren't in it. These days, polls and numbers and counts are fairly questionable; there is a lot of market manipulation by those who stand to financially gain from such manipulation/polling. Sure, the USA has great universities, but not all of the best ones.
What exactly is tryptophobia?
Hey! I [made a video for you to explain the basics of trypophobia] If you'd prefer to read I'll run over what the video states: - Trypohobia is the phobia of closely packed holes in objects, these objects can be everyday objects or images of skin with holes in it. - It can cause, nausea, shortness of breath and a racing heart. It can also cause a feeling of anxiousness like you describe. - Psychologists believe that it exists because shapes like tehse are taxing on our brain, and we have trouble processing them. They also believe that it's a historical thing, as things like snake skin and mold has tight holes in them and they are both warning signs for bad things! Hope I helped a little bit.Trypophobia is the purported fear of holes that look "freaky". The issue with the phobia is that it's not recognized very well, and a lot of images online that show it are photoshopped. While they might instill a "fear" in you or elicit a reaction, that's what the maker had in mind. A key way to see if you really have this is to ask if you 've ever jumped up or been scared by an English muffin or other piece of bread. If not, you're in the clear. As is probably everyone on Earth.
Why would a temperature shift of +2º C be so catastrophic?
Problem isn't just the absolute temperature. It's what happens because of it. Polar ice caps warm up by a few degrees, which causes ice to melt. That has two effects. One is that the sea level rises. The other is that the sea temperature goes down. This then causes air temperature above the sea to also go down. One of the things that governs how the wind works is the relative position between cold air and warm air, so when the air above the oceans goes colder, you also change the winds. The winds are crazy important. Amongst other things, they're responsible for moving nutrients from the Sahara desert to the Amazon rain forest. If those winds get messed up oh boy. Even if _those_ specific winds don't get messed up, though, you're still changing how wind erosion behaves.
How does Facebook target-advertise the very product I just looked up in Google/other websites, despite me being logged out of my account at the time?
The real question is why the fuck they do this. Yeah, bro. I know that's a cool product available at amazon. Because I just bought that shit at amazon. Thanks for the hot tip.
Why does my ejaculate go further after a long period of no fap
You have a pipe in your house that hasn't been cleaned or flushed out in awhile. You start pushing the stuff out and there is so much stuff that is shoots out far from the pressure that built up.
Why are 'cheezy' dad jokes funnier as you get older?
It's not that they are funny to old people, it's that they are funny to small children. Dads tell them to their kids when they are young to make them laugh, and then tell them to their kids when they are older because, while the joke may be worn out and not funny, exasperating your children never loses its humor.
Why are left wing socialist parties associated with both workers and intellectuals?
Intellectuals typically feel morally guided to help those who need it - the poor workers. Poor workers want some help now and again. It's a match made in heaven.Easy there, SPD is not a left wing socialist party. That would be "Die Linke". SPD is left-middle. And that should also answer your question1. They care about the workers. 2. Smart people care about other people.
Why do degrees from universities known for grade inflation still have credibility?
In my experience, institutions that practice grade inflation usually have excellent reputations already. [Here's] a Business Insider of schools where it's hard to fail tl;dr they're mostly top schools. Universities have three sometimes competing goals. They want to keep their students happy, they want to maintain or improve their reputation, and they want to place students into either a job or grad school program. People expect top performers from a school like Brown, so no one questions an A from there regardless of inflation because 1) they had to get in their in the first place and 2) you would expect them to do well. Teachers from these schools have also written that GPA is so important for jobs and grad schools that the student is better off with an A than with a C and life lesson, so they prefer to give A's. Lesser ranked schools, however, don't get that luxury. If any idiot can get into your school, the onus is the student and the school to prove the student is actually competent and intelligent, you don't get the benefit of the doubt. These schools, therefore, curve their classes to demonstrate that someone with a high GPA actually did well. At my school I've had teachers say they would give all A's if they could, but the school implements a curve to prevent this. Lesser schools also need to guard a reputation of being academically rigorous. Elite schools do not because their research, alumni base, reputation, etc, is so strong that chatter about easy A's or easy classes doesn't move the needle in any way. Edit: One more thought. Teacher evaluations are a huge component in a teacher's advancement and getting tenure at schools. Teachers, therefore, like to give out the best grades possible and in return get the best reviews possible. At lesser schools, they implement curves and other measure to fight this . But if the school isn't worried about this and doesn't implement a curve, the professors have a huge incentive to give out easy A's.
Why are professional sports players salaries made public while it's taboo for people to reveal their salary to their co-workers
The players use it to leverage better deals. Like everyone should really. It's only taboo because companies used to want people to keep it secret, because of the above. Also likely because poorer people don't want other people to know so much.Probably because of the salary caps all teams are subject to. They are obligated to reveal all salaries to all other teams and they are checked to make sure they are within the limits.if all the plebs actively shared our salaries and had the thought to compare them, we would see that we are all being paid pittance for what amounts to the majority of our adult lives. by the rich people doing it in our faces we never lose the idea that we too could one day make ridiculous amounts of money, that and we wouldn't dig too deeply into their finances. imagine how curious you would be if you had literally no idea how much a top tier sportsman made but saw them constantly in fancy cars and hotels planes etc, you might just try and do some research to find out, then questions are asked, then hidden things are uncovered. but if you ask the question, and 2 dozen people tell you because its public knowledge, then your curiosity is sated and you don't look any deeper. just my two cents.
Why do descendants of slave owners have to pay reparations for slavery?
This isn't a thing that happens. There have long been debates about reparations, but none of them have come to pass. Most of them involve the US government paying back the reparations, not individual descendants of slave owners.Who is actually saying that descendants of slave owners should be the ones paying? Usually those advocating for reparations say it should be paid for by the government.No one has to pay reparations. The idea behind reparations is that centuries of slavery left African Americans economically disadvantaged, and that they should be repaid enough money, either by the government or by the descendants of former slave owners, to return them to a proportionately equal economic status as they would have been before slavery. While there have been many discussions of reparations, and even one attempt at a bill to make them happen, they have always been met with heavy opposition. The opposition to reparations is usually centered around America's large, multicultural ethnic background and history of immigrants coming here. Mainly, that because of the constant influx of immigrants of all races to America, only a very small percentage of American citizens are descended from slave owners and most citizen's families weren't even in America yet during slavery. Add to that the fact that even during the height of slavery, a large majority of Americans couldn't afford to own slaves and the idea that the government should pay reparations with our tax dollars looks pretty ridiculous.
Why is a man required to pay child support if he gets a woman pregnant?
> She could have just said no to sex without protection and not take the risk, right? So could the man. If you create a child, you have to take responsibility for it. You have unprotected sex, you take the risk. If the woman is raising the child, you have to help support it. You accepted the responsibility when you had sex. Note that you don't automatically lose the right to raise your child. You'd have a very strong case for shared custody, and for being a part of your child's life, and if you can show the mother is unfit you can get full custody. Then you can get her to pay child support. Rights and responsibilities go hand-in-hand.
What happens when I run a disk defrag?
_URL_0_ I'm not a huge fan of everything cnet has to offer, but I found this video to be fairly helpful in explaining this.
Why does Facebook need so many seemingly intrusive permissions?
Part of the issue is also people don't understand why an app would need access to certain features. Example, many flashlight apps say they need access to the phone / calling features. Why on earth would a flashlight app need to make calls!! It doesn't. The flashlight app though needs to be able to see when a call is happening so that it can shut itself off. The problem is the phone permissions aren't spelled out in a nice and neat way, its either all access or nothing, even if they have not use for the full functionality they do have access for.
If influenza is always mutating, why does getting a flu shot help? Doesn't the shot only prevent attacks from a certain strain?
You get the flu vaccine during the flu season , because that is when you are most likely to contract it and suffer the symptoms. Once the peak season is over, the virus continues to exist and mutate, and even infect people, but to a much lesser degree, and the symptoms are reduced. So by the summer, the past winter's vaccine would be no longer effective, but few people get sick. So they don't make a new vaccine until the next peak season.If you're a particularly clever 5 this NEJM article might help explain: "Chasing Seasonal Influenza — The Need for a Universal Influenza Vaccine" _URL_0_
How does human population directly affect climate change?
Our fuel outputs and use of the land is unlocking methane and CO2 at a rate faster than ever before in nature leading to higher retention of heat in the atmosphere, day and night, but much more so over populated centers. The body temperature argument is nonsense. > She's actually a smart person, but she becomes ignorant the second politics, religion or science is brought up and doesn't look deeper into it. That's the key sign of a person who isn't intelligent.
how peanut butter went from America's most common lunch to something more toxic than anthrax.
I'm guessing modern medicine allowing kids to live through allergy attacks and what not, which then lets them breed and pass on their sensitive allergies. Of course this has absolutely no scientific backing and is just off the top of my head.Well the school's reaction is probably because of lawsuits for the school being liable in case of a reaction. I don't think the allergy has become more common, just more recognized and protected against. The same reason labels will even say if another peanut product was near a non-peanut product during packaging to say "may contain trace amounts of peanuts" or something to that effect.Hygiene hypothesis. We're so clean and sterile our immune system literally freaks the fuck out whenever it comes into contact with stuff. An Allergy is basically you're immune system going nuts like an overprotective mom, and it actually kills you by 'protecting you from those big bad antigens' by inducing swelling. Swelling is good if you're infected, because it brings white blood cells in to help, but does no good if it swells your throat because a peanut snuck in.One issue is that most commercial peanut butters are routinely made by removing the peanut oil and replacing it with partially-hydrogenized oils, which are *very* bad for you. If you do enjoy peanut butter, you should consider switching to a natural or organic kind that leaves the original peanut oil ini lived in france for a few years and they treated it like it was unhealthy as a jar of lard
Why do we feel a strange sensation when something is pointed between our eyes just above the nose on the forehead?
This is similar to ASMR . Your body anticipates that something is going to touch you because you can see or hear it, so your nerves in that area start firing and you feel a tingling sensation where you'd expect to be touched, even if no contact is made. Not sure why exactly, but there's a lot about it online if you search for ASMR and other similar things, and I'm pretty sure it's all to do with the nerves in your body and anticipating certain sensations. It's like if you imagine holding a ball in your hand, after a while you'll start to actually feel pressure/tingling on your hand, even though nothing is there. You can actually feel this for most parts of your body, not just between the eyes, however that is a particularly sensitive spot for some reason.
How are Youtubers getting Copyright claims if they are showing gaming Gameplay?
There is no right enshrined in law to post gameplay videos. The company that made the game has the right to use the songs in the game, and you have the right to play the game but a different company owns the music. Even if the video game company doesn't care about you posting gameplay videos, the music company might care about you posting the songs.
Why Do We Get a Lump in Our Throats Before We Cry?
It has to do with the autonomic nervous system which deals with non conscious actions. It's just the way it responds to emotional stress, it stretches the grottos and when you try to swallow it causes the lump feeling.
(NSFW)Why is it common for blonde haired people to have Dark pubic hair instead of blonde?
While we're on the subject. Can someone tell me why my hairs a dirty blonde while my eyebrows are as white as the hair from Children of the Corn? My hair when I was 10 was originally the color of my eyebrows, my hair darkened, eyebrows didn't
Why did the American government decide to bail out the financial institutions after the 2008 economy recession?
I don't know if the rules allow a follow-up question, but: What has been done to prevent it happening again?
Why are so many people in the US against universal health care?
Let's say your mom is always trying to get you to brush your teeth. Now you know that if you don't brush your teeth, there's a pretty good chance that it will come back to haunt you in the future, but you just hate giving up that 2 minutes every morning and night. Since you can remember, your mom has never checked up on you brushing your teeth, and you've been able to get away with it without getting in trouble. Now occasionally you get a cavity and that costs your mom a whole bunch of money to get fixed, but you don't care because you don't have to pay for it. Then your mom get's remarried, and your step-dad is much more of a stickler about brushing. He tells you that it is for your own health AND to save the family money, but you think that he is just trying to waste those precious 4 minutes of your day. So now the rule is, if you don't brush your teeth, you have to sit in your room for 20 minutes. Now even more of your time is getting wasted and you are getting even more angry. In reality, your step-dad is trying to make sure you stay healthy and that your family has money for other things. But all you see is some jerk trying to waste all of your time . tl;dr- just brush your teeth and you won't have to go to your room EDIT: I just read the other tooth related answer to this question but I was confused enough by his explanation that I'm not going to delete mine
Apart from the lack of oxygen, why birds can't fly higher than they do? Is there any physics behind?
The air becomes thinner and There's nothing to fly on - It'd be like trying to swim up out of a pool.Birds can fly really high. There is an vulture that flies at heights of 11km for example. In theory you could have birds that fly even higher than that, but there is really no reason for them. There is very little for bird to do up there other than break records. Evolution optimizes species for stuff that helps keep them alive and have offspring. flying high up in the air has very little benefit since there is no food or escaping from predators up there It just takes extra energy at very little benefit for that cost.
Why I should buy locally?
People will give you all sorts of global economic and foreign trade reasons as to why you should buy locally. I'll tell you the real reason to buy local: it's cheaper and it tastes great. I try and make a trip to the farmer's market every week or two. The first thing I noticed upon walking into the farmer's market was the cantelopes. There was a table of them and you could smell them from 10 meters away. I'm not even that big a fan of cantelopes, but those were fucking amazing. The local dairy had milk there that was indescribably good. Tomatoes that have actual flavor. Apples so juicy that you think you bit into a solid piece of apple juice.
Why is it beneficial to the United States for every foreign nation to be democratic?
No countries that were democratic and capitalist ever went to war with each other. Democratic countries try to not go to war because people can vote against and because it's generally not good for the business. The probability of two democratic countries going to war against each other is slim to non-existent. They tend to prefer diplomacy because it is more effective, cheaper, and better for the economy. So if all the countries would be democratic, there would me no wars and the economy would be stronger. Imagine if Japan or Germany were not democratic since 1945. Now imagine if China and Russia were to become democratic . We would adopt the same relations with them that we have with Japan and Germany today.
What is the purpose of bass?
And now to actually explain it like you're five Do you know how in art class you color a background and then add art to the background? Well, bass guitars are what add the background in music! Imagine that house you drew the other day with no background- it wouldn't make sense! Therefore bass guitars help music make sense. They also go good with drums and make you feel happy, or sad depending on the song.
how did our astronauts get off the moon and get home without the same elaborate setup we had in Florida when they first launched?
A big part of the reason the rocket is so big on Earth is one of the biggest problems in rocket science. It takes a lot of fuel to lift a rocket into the sky, but fuel is heavy. The more fuel we have, the more fuel we need to lift it. So, to lift the fuel we need to get a space ship from Low Earth Orbit to the Moon, to the surface of the moon and back is many many times more fuel. But, when you're on the return journey, you're not lugging around as much fuel , so we don't need to spend as much fuel getting everything else back to Earth. That, coupled with the Moon's lower gravity, and reduced air resistance, the return journey is much easier!
[other] Why is there no requirements for US cabinet members?
Since there are no requirements constitutionally the president can appoint whoever he wants. Unless we amend the constitution which would be incredibly difficult this will continue to be the case. In the past presidents have generally appointed people who are qualified because it's the right thing to do.
If Communism is so much better than Capitalism, why hasn't there ever been a large, prosperous middle class in any Communist country ever?
Well there has been no real communist regime, they've essentially been just dictators When it comes down to it, human beings are not 'mentally' ready for Communism. Notice how futuristic Utopia is always a socialist/communist like regime. Star Trek was forced to make changes to its society to ensure it didn't look like communism. Also being the enemy do you think we'd ever show them in a good light. We ridicule Nth Korea propaganda, but that actually happens in our own backyard as well ie the build up for war in Iraq. At the same time there is no true Democracy or True Free Market, True Capitalism. Most society are a general mix of everything.
Isn't Google killing other websites by displaying most of the content in search results? Why do these websites allow this?
Without Google visitors, they'd have no visitors at all. IMDB isn't charging you for that information, so you aren't their customer. They save money if Google sends you their data, and they get the good PR. Google respects robots.txt instructions, so they could easily tell Google not to do that and Google would comply. But they choose not to because it's a good deal for them.
How is so much energy stored in a Uranium atom so that when it is split it causes a nuclear explosion? Where is the energy exactly coming from?
The short answer is that this energy is coming from the breakdown of the nuclear bond that previously prevented all of the positively charged protons in the nucleus from flying apart from one another. To get a better understanding of what exactly is going on here, let's look at a very simple example in the alpha particle . The mass of the alpha particle is 6.64×10−27 kg but if you add up the individual masses of the protons and neutrons that comprise it, you actually get 6.69×10−27 kg. So somehow the act of binding the protons and neutrons together causes them to lose approximately .8 & #37; of their cumulative mass. What's going on here? The answer is that the binding energy of the nucleus is cancelling some of it out. In other words, to free those protons and neutrons from one another, you would have to give each one a burst of kinetic energy equal to about .8 & #37; of their rest mass to break the bound state. A consequence of this is that if the nuclear bond was to become unstable and decay, say from a U -235 nucleus absorbing a neutron, the energy of that bond needs to be conserved and the way that that happens is that it is transformed into kinetic energy as the fission fragments fly apart very fast.Imagine an atom as a rubber band under tension. When that rubber band breaks pieces go flying and hit more rubber bands, causing them to break, and then they would hit more, and more Now imagine this happening 2,562,610,000,000,000,000,000 times for 1 gramSo how many atoms splitting would it take to have a tiny little explosion that could be observed in a room and not destroy anything? 2 atoms? 20 atoms, 2,000,000 atoms? And could that actually be demonstrated?It’s like a ball of elastic bands, if you slice it in half real quick it explodes. However if you do the same to a single band.. meh.
How can this professional belly flopper survive belly first from extreme heights in a small kiddie pool?
I think he's using a modified swan dive. I remember watching a guy do this a long time ago. Lots of training. If you land wrong you snap your neck. Crazy shit.not sure but couple of things i noticed: * the water is a lot higher before he hits. i.e. quite a lot is missing after. Presumably this goes towards absorbing/redistributing the energy of impact * water slows things down pretty quick anyway * he lands flat, and his arms are rapidly moved sideways like in a swimming stroke. I guess this helps push against the water and keep him up * and landing flat distributes his weight over the largest area. also having balls of steel helps.I remember reading something about them training quite extensively; that it's not an actual belly flop but a very precise diving technique. Other than that. I don't know.