query
stringlengths
8
249
answer
stringlengths
45
7.8k
If humans exhale Carbon Dioxide, and combustion requires Oxygen, why do fires grow bigger when we blow on them?
* You exhale lots of oxygen your lungs didn't absorb * It's mostly about the fact that blowing on the burning material causes the air to get more thoroughly mixed up with the material and thus react more easily.For humans, our exhale consists of much more than just CO2. A large majority of our exhaled breath is indeed ...
How dogs see 'dog toys'
Your dog doesn't play with a lot of things because they're not interesting. Squeaky toys are very interesting.
Why copyright law effects YouTube so much but sites like _URL_0_ doesn't worry about it?
Part of it is that IP owners have begun moving past a scorched earth policy, and have instead realized its a better idea to make legitimate money off of people illegitimately using their IPs. I have a friend who works for a small record label, and he manages their social media presence, including the YouTube profile fo...
should I be worried about automation and potentially losing my job?
No. Automation ruining jobs has been a fear for all of history, ever since the first farmer made a tool to make farming more efficient. In practice, it's not a problem because new jobs are always created. People aren't content with the same quality of life, so when existing goods and services become cheaper and more av...
Can someone please explain to me how direct drive works? More specifically how come koegnisegg regara doesn't have transmission?
A transmission acts as a go between for the engine and what you are turning. In a direct drive the engine turns it itself. As you can see a transmission and a direct drive are mutually exclusive. If you have a transmission it is not a direct drive. If it is direct drive there is no transmission. As for why that works I...
What do people usually do when they say they "work at home"?
They do job-related tasks for their employer, much like you'd do at an office, but they do it from home. Or they're self-employed, and they run some sort of small business or do freelance work from home.
Why does modern society try to avoid contact with certain primitive peoples?
A key modern concept is self-determination. In the charter of the United Nations, for example, the concept of a people having self-determination is presented as a defining characteristic of a peaceful world. Primitive people that have demonstrated that they don't want any contact with the outside world ) tend to be lef...
How do Christians combat the argument that there are hundreds of gods that exist and are worshipped in the world so how do they know they are worshipping the right god?
Because. That's all you need to know. Because. This is what I hate about organized religion. Everyone calls ALL the others liars and fakes.
Why do some militaries require men to be clean shaven?
Some militaries historically have required facial hair. The British Army certainly did in the past. The French • sapeurs* or combat engineers of the French Foreign Legion still wear beards. The Royal Navy allow beards. Worldwide, there's a wide range. See this [wikipedia article]. Many of these wear masks etc.
why do objects in our vision appear to be in different places when we look through one eye closed one eye open.
You have a dominate and non dominant eye; if you're right eye dominant and you close your left eye, whatever you're looking at won't move, but if you close your dominant eye, whatever you're looking at will shift a little bit.
why don't taxi drivers just become Uber drivers?
No one has mentioned Uber's end game here. This is the Netflix mailing DVDs through the mail stage. When driverless cars become acceptable/legal/safe, there won't be taxi drivers or Uber drivers. Uber is t valued north of $50 billion because of their current $1 billion revenue.
Why is there a Windows 32-bit and 64-bit?
For a long time, the pat in your computer that does most of the work used 32 bits to store all the information and instructions it worked with. In the last couple of decades, Intel and AMD started making 64 bit CPUs because they can hold twice as much information in a single storage location. Once the processors starte...
Why do other languages seem so fast compared to English?
Because you know English very well, you know where one word ends and others begin. This process is automatic for you and so you can understand what is being said. Although it sounds as if they do, a native English speaker doesn't naturally pause between words. It's the same in other languages, but without the knowledge...
Why does a numbed area "feel" large or swollen when it is not?
This is an excellent question. Part of the problem is that anesthetics are not very well understood, so I'm going to start with what I do know and work from there. Local anesthetic does not block all nerve receptors. It does block pain receptors but, at least for dental procedures, does not block the nerves responsible...
How are calories, carbohydrates, fats, and proteins measured in food?
The scientific way to do it is what nwob said: set it on fire and see how much energy it puts out. Now what companies probably do is just factor in all the nutrition from their ingredients and add it together and 10g of fat . TL;DR: They just add everything up, if you cook fat, the fat ain't going anywhere.
Why do cigarette smokers, love smoking?
Like any substance, there's a reason why people do it. Cigarettes can be very enjoyable. I used to smoke but quit because I wanted go get into shape and needed to run, but I used to find it very pleasing, and it stimulates the nerves in a tense situation and helps you calm down. Still glad I quit.
Why do we have bad dreams? Why are our dreams not just purely happy ones?
might be important, let's leave it somewhere i can easily find" and "yeah, put it with the others in that place hard to reach and sort". So during deep sleep some of these things could come up randomly and you may experience them as such.
Why is whether or not they read Tsarneav his Miranda Rights such a big deal?
It can be a big issue for a couple of reasons. First, there are limits to how information can be collected during an investigation and be revealed in court. If a suspect is not given the Miranda warning, the prosecutors cannot mention information obtained through interrogation. As a result, some fear that the prosecuto...
how do we use the pi symbol which represents an infinite number to find the area of a circle which is definite?
To further clarify: pi is a constant that would exist regardless if we had a word, symbol, or number for it. It's not so much an idea or concept, it just *is.* When you multiply, you're calculating what *n* of something is--two of 3 is six; five of 2 is ten, etc. We use pi because it never changes; 3.14159.. of a circl...
Is it common to pick up accents to which you are exposed in as little time as an hour?
Subconsciously our brains adapt to our surroundings, just like you pick up the pace when you're walking with a slightly faster group of friends or you accidentally catch yourself mimicking the body language of people around you or responding to it. Your Brain decides the best way to survive is to fit in. People who are...
Homosexuality and the Evolution/Natural Selection theory
There is a theory with regards of that, where the genes somehow give an advantage to the female siblings of the gays, who in turn have more children. However, I don't believe it is a specific evolutionary development, because it would be hard to jusify the existence of other sexual deviations this way, e.g. pedophilia,...
Why is diesel fuel now more costly than regular unleaded?
Taxes. Politicians need to find a way to fund stuff like fixing roads, so they have to increase taxes along with inflation. It is political suicide to suggest higher taxes on normal gasoline, but politicians can get away with suggesting increases on taxes for diesel because diesel is deemed more polluting than regular....
Why do neon/white things look amazing under a black light?
Detergents include whitening agents to make sure your white clothes don't yellow because of exposure to body oil/dirt/whatever. Those whitening agents glow when exposed to blacklight. Other colors will glow sometimes too depending on the fabric and how well it absorbs the light from the blacklight or the flouresce
Why is nostalgia sometimes better than the real thing?
When we remember something fondly, we often look through rose tinted glasses while we remember the good things. Sometimes these memories can be linked to a happy or hopeful period in your life. When you then listen/watch things that you used to love, you either notice some of the bad things that you'd forgot about, or ...
What's the evolutionary advantage to having muscles capable of forcing your skeletal structure to the point of injury?
It's not an evolutionary advantage, it's an evolutionary necessity. Avoiding this phenomenon would require muscles to have a maximum built in contraction amount, or other controls to prevent them from physically achieving self injury. If this was a physical limitation, then it would have to be precise, and would theref...
Why does looking at/near the sun make me wanna sneeze?
There's a video by Veritasium explaining this. Apparently this is encoded in your genes. One aspect of it is, that our ancestors lived in caves, and sneezing inside would mean that diseases/viruses would spread faster by sneezing on the inside of the cave. It seems that some sections of these cave sneezers got themselv...
How exactly do keygens produce a product key to trick the software?
Product keys are decided by math. In general they'll have a few different components. Take ABCD-EFGH-IJKL-MNOP Some first bit of the key will be a seed value. It'll identify the key, so it can be blacklisted, and they'll probably use that to generate at least part of the product key. EFGH IJKL will be the verifcation b...
Why does inbreeding produce genetically inferior organisms?
As far as domesticated dogs dying out: it's important to note that they are not subject to natural selection but instead artificial selection, which means that humans play a big role in breeding dogs.Just like to say that inbreeding is not necessarily bad, because breeding for specific traits has been very useful for s...
Are there any 'tastes' we can't taste ?
This isn't exactly what you're asking about, but there are substances that *some* people can't taste. Phenylthiocarbamide is a chemical that some people find very bitter while others can't taste at all, depending on the genetics of the person tasting it. I remember my high school biochemistry teacher playing a bit of a...
Why do plastic/office/work and school chairs have a hole or nothing right where your ass crack is.
It's cheaper to make, less likely to deform during the molding process, and gives you an easy way to pick up the chair.
Why does the tail rotor on a helicopter spin on an axis perpendicular to the main rotor on top of the helicopter?
It's as other here already said: The tail rotor is there to counter the torque of the main rotor. To get rid of the tail rotor you can build a second rotor in which rotates in the opposite direction.This has two effects: It's counters the torque so the helicopter doesn't spin around and it has more power to lift. The r...
in light of the current US political climate, how is America still tied to a two party system?
Both major Parties absolutely agree that it would be very much better if there was no third major party. They can't agree on much, but they can agree on this.
Why hasn't Magic Johnson's HIV developed into AIDS yet? Is he a rare exception?
Most cases of HIV don't develop into AIDS. Magic Johnson is lucky enough to be wealthy, so he's always been able to afford the proper treatment and medication to keep his HIV from developing into AIDS. With the proper care, this could be the case for any HIV patient.
Why did Americans invent the verb 'to burglarise' when the word burglar is already derived from the verb 'to burgle'
Due to the overwhelming amount of rule-breaking posts in this thread, and the fact that it's had an abundance of great explanations in the time, we've decided to lock this thread.
Why can't governments implement caps on house prices? What other government interference could help the housing crisis?
First off, how would you cap this? If you cap it too high, it doesn't do anything to make housing affordable. If you cap it too low, you suddenly just made everyone who owns a house more expensive than that cap much poorer than they used to be. In order to actually affect housing prices for those that most need the hel...
Why do we need to file taxes?
Some people get money from things that don't produce paychecks. Investors might buy an old house, fix it up, and then sell it. There is nobody taking deductions or withholding taxes there. The tax system has to be very general to handle all these complicated cases.
Why are most Toilets White? Specifically why would any other not be as good of a choice as white.
White symbolizes cleanliness and purity, and porcelain toilets came about at the point in history when people started being aware of germs and what they do but there are also practical reasons: - You can see if something is clean or not, if it's white. This is why hotel sheets are white, too, and apparel is white in pl...
why do some luxury cars have their engines in the back, rather than the front?
It's not really anything to do with luxury. Porsche has a legacy of rear-engined sports cars that they are almost obliged to maintain because they're popular, while at the same time making other mid-engined sports cars and front-engined luxury cars. So, even within Porsche's range, the rear-engined cars are not the lux...
What's the point of having two hard drives on a computer?
I'm guessing if its a high end computer, the smaller hard drive is often a solid state drive. SSD's are very fast, but often very expensive with limited sizes, so they often need a bigger more traditional hard drive.
Why are hospitals in the US so expensive?
Health insurance worker here. I thought I'd add why medical care is expensive in the US in general. If it was a single reason, or two, or three we could maybe solve it, but all of the following are issues:1) US is lawsuit happy hence sky high malpractice rates.2) Health insurance overhead .3) We don't tolerate the kind...
Why do some Asians only want crisp/new money bills?
It's common in a number of Asian cultures to give money as gifts. When this is done, it's polite to give crisp, new bills, not ratty, torn, wrinkled bills. So probably most of the people who are coming to see you to get bills are doing it for the express purpose of getting new bills to give in gifts. Then they get regu...
Why do people, in general, get progressively more right wing as they get older?
People don't get more conservative as they get older. This is a very common misconception. [Do People Become More Conservative as They Age?]
Why can't we harvest blood from a dead person like we do organs?
Why would we need to? Blood is cheap and relatively plentiful - there is not a shortage for it as there is for organs. I suspect the answer is economic - it's not worth the effort.Cultural taboo and the fact that there are living people who are willing to give their blood away for free. Cadaveric blood transfusion has ...
Can you develop an allergy to something, as you age, that you used to not be allergic to?
I did. Before my liver transplant I had tons of contrast CT scans. I was also highly allergic to cats. After my transplant I had a contrast CT scan and the dye sent me into anaphylaxis. The weird thing was it sent my aunt, who was my donor, into anaphylaxis too, and she wasn't allergic before. After the transplant I fo...
When we do our own taxes every year, and the IRS verifies them as true, why do we have to do them if the IRS "does them" anyway?
They don't verify the taxes of most people, only those they audit. That's why they tell you to keep records of all relevant information for 3-7 years depending on the kind of record. However, certain things will raise a red flag and increase the chance of an audit. So if you take you cheat on taxes and claim you are du...
what are taxes, why do i have to pay them, and how do i pay them?
Why? Because you constantly benefit from things that are provided by the government, so you have to pay to support those things. Taxes are paid by the average person either through sales tax, which is tacked onto may purchases you make, or income tax, which is normally taken out of your pay automatically. In April you ...
Why do some men's penises have a darker skin tone than the rest of their body, despite having little UV light contact? (NSFW)
I'm mixed with German and Peruvian, my skin tone is slightly darker than your average white dude however my penis looks down right Hispanic. I had a complex so I frequented tanning salons so it would some what match ", 'A lot of small capillaries are concentrated in your penis and the color looks darker because of the ...
Why do out door TV antennas need a seporate receiver on top of them?
If you mean the little plastic box on the dipole, that's usually just a connection box where the upcoming coaxial cable connects to the receiving element. Sometimes it contains a masthead amplifier if the signal isn't strong enough to reach the telly without boosting, or if you're feeding multiple sets.
Other than 'having better computers', what advances (in maths, physics, others...) allows them to produce more realistic animation movies than the ones produced, say, ten years ago?
Better computers is most of it. Rendering takes a ton of computing power. Not only does this mean the final product can be more detailed, but the artists' computers can show more detail during their work, so they can better see how it will look, and not have to wait so long to see results. There's also improved softwar...
Why did New York stop speaking Dutch around the 19th century?
I don't know the answer to your question but I have heard that Dutch is the basis for the unique New York accent.
What does xth cousin y times removed mean
The trick is to count the G's. The first number is how many generations back before you hit a shared ancestor. 1st cousins share a **G**randparent, 2nd cousins share a **G**reat **G**randparent, etc. What if those cousins aren't in the same generation? That's the second, number, how many generations off. You find that ...
Why do we call the President's body guards the Secret Service?
They were originally created in the 1860s to investigate counterfeiters. They didn't add presidential protection to heir mission until the 20th century.
How does one became a filmmaker?
I'm a filmmaker! Well, a cinematographer to be exact. I went to school for filmmaking, and met a ton of people there who are now working in the field . It is all really about connections, favors, and festivals! If you want to get into the nitty-gritty, head on over to /r/Filmmakers. The sub is filled with new and aspir...
Why do we find national stereotypes less offensive than racial stereotypes?
I think this is mostly a U.S. thing and it's because the current tensions are between different races so racial stereotypes tend to be derogative because people are reaching for them when they're pissed off or trying to put another group down. Whereas there aren't serious tensions with other nations like Canada or Euro...
How and why do shows like "Rick and Morty" use a different director for every episode while maintaining stylistic consistency?
Others have already said the showrunner is who keeps each episode in line and the director is more or less delegated to carry out the established plan for an individual episode. I'd like to add that individual episodes, especially animated episodes, take a LONG time to create. There is a popular article about Futurama ...
If all the gold at fort knox was stolen,how & why would it affect the dollar value?
It wouldn't affect the dollar value at all. It would destroy the value of *gold*, however; Fort Knox holds about 3% of all the gold in the world.
How is the age of very old trees determined without cutting them?
There are ways to estimate size by measuring the tree's size and use a number relevant to the species of tree to come up with a rough number. For an accurate number an expert will take a tiny core sample and count the rings. If it is done properly it won't hurt the tree. If it is done incorrectly it can kill the tree.
How can some states (e.g. Florida, Washington) afford to not have state income taxes?
Florida resident here! Can't speak for everyone, but: * We have a pretty gigantic tourism industry down here. We saw almost 100 million tourists in 2014, and we'll top 100 million this year. That's almost a third of the U.S. population. That's a huge boon to the economy, of course, but coupled with our ~6% sales tax, t...
Why do cats ears twitch after being slightly touched?
I think the ears twitch if there is something that feels annoying or uncomfortable to the cat's ears. I have brushed my cats ears before without them twitching at all, which is why I don't think the twitching is only a reflex. Or at least it's a reflex in response to annoyance, not just to a light touch.
How does the elevation in Denver impact kicking/throwing the football so much opposed to "normal" elevation stadiums in the NFL?
I've not heard of the Denver climate having much influence on football. In baseball, though, Coors Field is notorious for being friendly to batters. The combination of dry air , thin air, and high winds above the stadium causes balls to be whisked away once they reach sufficient elevation. Coors Field was the subject o...
Why do decapitated heads go unconscious instantly after being separated from the body instead of staying aware for at least a few moments?
For your brain to remain conscious, or for most of your tissues to work in general, you need oxygen in those tissues. But it's not enough to just have free floating oxygen sitting around. That oxygen has to be pressurized in your cells, for the cells to make use of them. Failure for your cells to get oxygen is called h...
Why is religion, specifically Christianity, involved in the inauguration ceremony?
It's important for the most powerful leader in the free world to demonstrate having an imaginary friend.It dates back to the original inauguration with George Washington. In that time period, the separation between Church/State was not as prominent and most people in America were some form of Christian . Religion playe...
why have some countries developed much richer culinary tradition then others?
These countries do have a culinary tradition, it just isn't as widely known. People in other countries also tend to have fairly rigid views of what food from certain countries is supposed to look and taste like, and they are unlikely to show interest if you deviate too much from that. Case in point: German restaurants ...
Why do employers reject applicants on the basis that they are overqualified?
If someone is 'applying down' there is likely a reason. It isn't necessarily negative but if it isn't explained it is a risk to make the hire.
How did cavalrymen not get their legs chopped off when they rushed into battle against ground troops?
If a horse is charging at your face, you aren't going to try to pull some fancy stunt where you sideswipe the dude's legs. You're going to run out of the way, or you're going to get trampled.
Why do sick artists cancel concerts weeks in advance? Wouldn't they already be better by then?
If the alternative is I've paid for a show only to watch the artist lipsinc because they're sick, I'd rather they cancel.
Why, after hurting themselves, do Toddlers / Children have a moment or two of silence before they begin screaming and crying?
Its processing time to determine their next actions. It changes over time too as kids learn that they can get in trouble for doing stupid things that hurt themselves. they also learn at a very young age and very quickly who they can get the most attention and sympathy from. My nephew for instance is in my opinion 'over...
Why is the Apple App Store and Google Play Store not a monopoly?
1.Apple App Store is a monopoly over the Apple ecosystem and is perfectly legal as per US and EU laws. According to these laws the hardware manufacturer has full control over what can be done with its ecosystem. So Apple cannot be sued for forcing it's policies like not allowing non-webkit browsers etc. 2.Google play S...
Now that the "Freedom Act" has failed to pass, what does that mean for the Patriot Act?
it means they're going to try again at an unannounced midnight session and we'll all wake up in the morning to find out its been passed
If humans are 80% water, why are we classified as carbon-based?
The important chemical and structural components are based on carbon-centric molecules. The water is just cell filler. It adds volume and acts as a solvent for liquid chemistry but usually doesn't participate.
related to Boston, can someone get into trouble if the police search their house for an unrelated reason?
They can't come into your house without a warrant unless you let them, they have probable cause a crime is being committed, they believe someone is in danger, or they are in hot pursuit of a criminal. In all of these situations anything in plain sight can be seized as evidence and on that basis they can obtain a search...
Why does the Disney channel need sponsors? I mean theyre richer than all their sponsors combined, and probably own the companies sponsoring them, so why do they need sponsors?
My family owns a construction business. They build a house . Now they can give it away for free to a middle class family, cause why not? We are richer than all of the middle class families we have sold houses to so far combined. But we choose to sell it because we'd like to keep it that way. It's business, nothing wron...
Why do modern concerts have to be so loud?
> Shouldn't a well-designed sound system be able to carry the sound throughout a venue without needing to crank it up? This is actually *really* hard to do. Don't get me wrong, speaker manufactures as well as audio device makers and sound engineers at the top levels put *a lot* of time into trying to make this happen, ...
What is the difference between House, Jungle, Trance, and/or any other genres of Electronica/Techno?
Check out [this Flash site], which explains it in great detail, but as a disclaimer, Ishkur can be pretty opinionated and condescending at times. Not everyone who's into electronic music agrees with him all the time.
What does Java do for the computer?
Java is an environment that programs can run in, kinda like Flash Player. Without Flash Player, you cannot watch Flash animations or play Flash games. Similarly, without Java, you can't play Java games or use Java programs.
What causes us to wake up on our own?
Short answer: hormones Long answer: when you eat food, a hormone called insulin is activated which is responsible for taking the glucose produced during the breakdown of the food to different cells for energy. But the thing is we have to maintain a certain level of glucose in our body to function normally. To maintain ...
How are digital copies of music subject to supply and demand when there is in essence an unlimited supply of downloads?
If you mean why isn't music for free because it doesn't cost any money to download, then there is actually a limited supply: limited supply of artists willing to work for free.
The purpose of the uvula.
It has a couple functions but the most common function is to cut off your nasal passage while swallowing so no food goes down your nose. It's pretty week though, that is why when you are drinking milk and laugh/sneeze it shoots out your nose._URL_0_ The second most common is for speech. In some languages like arabic th...
Why Finland wants to introduce Basic Income?
A Universal Basic Income is a pretty darn-tootin' sweet idea. I'm a libertarian but would vastly prefer this to most of the social spending we do. Back-of-the-envelope math show me **a UBI would eliminate poverty entirely without raising taxes at all.** So we spend around $2 trillion on Social Security, Medicaid and We...
Scientifically, what is the difference between color film and black/white film? What changed and allowed film to be in color?
Well, there was color film that dated back much longer than you would expect. It has been around. The thing is, to represent color you need multiple chemicals that react in predictable ways to expose a photograph. Black and white is easy, you just need something that reacts to light in a uniform way. And what changed i...
Why aren't inmates 'allowed' to choose death?
First of all, the prison system is based around rehabilitation, not some kind of storage unit for unwanted citizens. I assume you are talking about the inmates who are sentenced to multiple life sentences, since killing the ones who aren't would be rather odd. These people are *all* considered mentally ill, since they ...
Why does the Federal Reserve raise or lower interest rates, wouldn't it be better to just keep it low to help grow the economy?
The reason the Fed lowers or raises interest rates is because they are practicing monetary policy. That means they are trying to take steps to provide stability in the economy. The reason they do this is because they are following what's called [Keynesian economic theory.] Keynesian economic theory basically says that ...
Why exactly I need to turn off my cell phone on an airplane?
Mostly, it has to do with Congress deciding that they didn't want to listen to some jackass yammering on on his cell phone for an entire 5 hour cross country flight. Seriously. There is no interference between a cell phone and the instrumentation of an airplane. If that were so, then all the RF generated in an airport ...
what do wild animals do when they get bored?
Depends on the mental capacities of the animal. For example, snakes are very simple creatures and more than content to just sit in a hole for hours or even days until they feel the urge to eat. Something more complex like an elephant or a dolphin requires more stimulation because they're far more intelligent; they soci...
Why do old games running on new hardware still have technical issues?
The emulator is designed to match the actual behavior of NES hardware under real conditions as closely as possible. It is actually very important that an emulator be designed to do this, otherwise it can cause problems. In rare cases, a game will be designed to work around or even make use of a specific hardware fault ...
EIL5 why SOPA is even being considered (I'm I Brit)
American politics work like this, let's say you have a lot of money and a special interest. You find a few politicians, throw money at them and from there they dance just as you instructed them to do.
How is the average student loan debt in the U.S. only around 20-30k?
Good question I agree it doesn't make sense. Sincerely,-guy that's fucked with 300k student loans", 'I guess it depends what you mean by average. If you are taking an average of everyone in the US who has any sort of student loan debt, then that would include people who only had smaller loans. Maybe because they went t...
Why do some employers not advertise salary along with the job spec? How can it be advantageous to them?
Salaries in the profesionnal sector can change a lot from person to person within the same company. The employer wil try to get everyone at the lowest possible salary while employees will try to negociate the highest possible salary. Some people undernegociate while others negociate better. Some people are more qualifi...
how do fleas and ticks survive in fields or yards that don't seem to get much animal traffic?
I wanna say ticks can last 3 years in an early stage before adulthood without attaching to a host and flea eggs can live in an environment for.. 15 months? They remain in the egg state until vibrations and heat activate them and start the life cycle again.. im not sure why I'm answering.. its been a while since school
Why is it that when i sit up/lean forward slightly while laying on my back, my spine shakes
Your abs hold you in that position. If they get fatigued they will shake. If your abs aren't strong, it'll shake immediately.
Why is bad eyesight common?
It's not known for sure, but genetics is likely not a major component. It doesn't make evolutionary sense for 10-20℅ of the population to have such a disadvantageous trait. Or if so, there would have to be historical accounts of nearsighted people being abandoned or left to die or something.. More likely it may have to...
Why do I see patterns of spots on tinted windows when I where polarized sunglasses?
You're seeing high stress areas in the glass. There's actually an instrument called a polariscope to measure stress in glass
Why aren't more companies taking advantage solar power since the Sun's energy is always there and free to collect?
I can tell you why I don't use Solar. I got estimates several years ago and installation was going to be in the $35K - $40K range. Estimated savings was about $60 a month.
What are the effects of the warm fall and winter we are having in North America?
This probably isn't the type of answer you're looking for, but it's almost January in Michigan, and I'm still weeding the cracks in my driveway. I paid for a season's worth of snowplowing in advance, so I *probably* just made a truck payment for the guy instead. That said, my lawn has never been more lush and green tha...
Why did the United States lose so many aircraft in Vietnam?
In general the services have shrunk heavily from their peaks in the 50's and 60's, fewer numbers could accomplish the same missions survivable due to new technologies. But the Mid 60's were a rough transition. Doctrine was just catching up to technologies like 3rd generation SAM and air defense systems, kindly donated ...
Why do Americans put their parents in nursing homes?
Well, nursing homes are for adults who are unable to take care of themselves anymore, and for whom living alone has become dangerous. Since it's pretty standard in the US for both spouses to work, an elderly parent living at home would still potentially be in danger since they will be home alone most of the day. Plus, ...
Why do our bodies not see alcoholic (fermented) beverages as "bad" and make us sick like other ailments (e.g. ecoli)
They do, ethanol is actually quite bad for you. Just as everything is depending on the dose and the concentration. E. Coli produces symptoms because your immune system wants to get rid of it - whereas ethanol is psychoactive, and metabolised in the liver. If it's the fermented plant material you're worried about, ethan...
Why are companies not taxed on revenue instead of profit?
Corporation taxes are really just price inflators. Logically, corporate income tax itself makes very little sense. Let's say that we taxed Wal*Mart the way you are taxed personally - on your income. How would Wal*Mart react? They would just raise the price they charge to offset the tax they'd pay on sales. So the stuff...
why do we have reoccurring dreams
I'm curious also. I have dreams that take place in the same setting for multiple days in a row. Theyre different dreams within the same environment and with the same people. What gives?
What causes states like New York to have such higher taxes than a state like Tennessee?
This is hard to explain, I have lived in NY my whole life. There is a ton of waste and lots of corruption for sure. It's also not working since it's the #1 flight state . Also, NYC requires a lot of tax revenue to operate.