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If an adult didn't learn certain things during the critical period, will it be very difficult for them to learn them? | I think based on science it is possible, but it will be extremely difficult. One suggestion is to try and keep a positive attitude, and try to learn. Edit: hard work normally pays off. |
Why is there a militia occupying the Malheur Wildlife refuge. | So There are ranchers in Oregon named the Hammonds. It is typical to set land on fire to kill weeds . Some weeds won't be killed unless they are burnt. So, they set some of their land on fire to kill weeds. Now, the land bordered federally-owned land. The fire spread onto unoccupied federal land. The Hammonds were char... |
Morse code. Is it, it's own language or is it in English? How did it become universal? | Morse code isn't a language, it's an alphabet, although it uses the same letters as english. Individual letters are signified with a combination of dots and dashes, and words are spelled out as per normal. So you can use morse code with whatever language is compatible with the letters you have available to you. |
How can a doctor/dentist/optometrist etc. practice in a state and not accept the sate's insurance? | It's not state run or federally run health care in the US. It's still a choice for the doctors on whether or not to participate. For most it's what keeps the patients coming so they do it. The ones who don't have either decided the hassle of dealing w/ the plan isn't worth it or they're so busy they don't need the pati... |
Would eating a bunch of cooked bacteria be nutritionally similar to eating cooked meat? | Don't know about bacteria but I can find nutritional information on nutritional yeast. Yeast are single-celled organisms but they're technically fungi & not bacteria. Here's the nutritional information from a 100g serving: | Yeast | Beef |-|--------|------|calories | 281 | 211calories from fat | 31 | 100total fat | 3g ... |
Why do governments want to avoid a current account defecit? | Taxing imports has little to do with mitigating deficit. It's more about protecting national industries from foreign competition. On one side, you might have one particular good being produced in your country that costs more than their foreign counterparts with similar quality, so the national industry can't sell. So t... |
Question about light and my fan | If your bike light s an LED, it's not really varying in intensity, it's just strobing, the moving fan blades highlight the strobe effect. |
The difference between aftershave/perfumes and eau de toilette. | aftershaves- theyre basically lotion in the disguise of a nice smelling perfume. its a little safer to put on your face, and they have slight chemicals in them that soothe freshly shaved skin. its almost like a lotion in the form and scent of perfume. perfume- this is generally the highest in concentration levels. they... |
Chemically, what happens to your body (brain) when you can’t stop laughing? | I'm just guessing but it could be related to some activity in one of the Many cannabinoid receptors which are known to be able to send people into awesome fits of laughter when exposed to oral or smoked cannabis.Interesting question I must say |
How does applying heat to something actually relieve the pain? | It depends upon the kind of pain. For muscle aches, heat causes blood vessels to relax and dialate. This means more nutrients are going into the area, promoting healing and carrying away toxins faster. For other sorts of pain - like a burn or an area swollen with infection, apply heat is a terrible idea. Cooling is eff... |
Sometimes when I go to bed, I fall asleep for 15 minutes and wake up completely refreshed and unable to fall back asleep for hours. How does this happen? | And how is it when I sleep for 12 hours, I wake up as though I didn't sleep at all", 'Same thing happens to me every night. Inquiring minds want to know..Does this happen to many other people? OP, are you depressed? This same thing happens to me. I'll fall asleep when tired, then wake up and have too much energy to ret... |
What is the objective or telos of ISIS? Are we doing them a favor by feeding attention to the beheading videos? | They want to create a Caliphate - basically one big over-arching Muslim nation ostensibly led by a successor of the prophet Mohammed. In theory the caliph is the leader of the entire Muslim community. They want to unite Muslims under this Caliphate by force. Also they are depraved terrorists that even Al-Qaeda say are ... |
Salt and ice - Why the burning sensation?! | When salt meets ice it lowers the freezing point of the water. The result is super cold water. This is why salt is used to melt ice on roads, and why you use salt and ice to make icecream. The reason is that the salt goofs up the formation of ice crystals, making it much harder for the water molecules to line up and fr... |
Why is it so hard to make friends after you turn 25? | The biggest factor is opportunity. Young people are almost always set up in large groups due to school. This also happens at a time in their lives when they are very open minded. As you grow older your personality tends to solidify and you tend to judge other people more solidly then when you are young. You also don't ... |
What causes the attraction to "odd" physical traits? My attraction to slightly gapped teeth, for example. | Perhaps you were attracted to someone with this trait earlier in life, and you associate that trait unconsciously with a person who may have shaped your image of an attractive person. What is considered "attractive" can change from era to era, and culture to culture. One way or another we are exposed at an early age to... |
why too cold things sometimes are felt like hot things? | For your sensory system something that is very hot vs something that is very cold is very similar response. You get the same systems responding to both situations. Your body thinks a cold burn and a hot burn are the same thing because they both equally suck from an evolutionary point of view.Your skin has nerves for se... |
How a gas pump knows when my gas tank is full | [From Wikipedia]: > Most modern pumps have an auto cut-off feature that stops the flow when the tank is full. This is done with a second tube, the sensing tube, that runs from just inside the mouth of the nozzle up to a Venturi pump in the pump handle. A mechanical valve in the pump handle detects this change of pressu... |
Okay, ELI5. We have the different blood types covered, so how about the difference between whole blood, platelets, and plasma? | During a whole blood donation, donors typically donate a pint of blood. During platelet or plasma donation, your blood is collected and then separated into its components by a machine; the machine keeps the platelets or plasma and returns the rest to you. Your blood stays confined within a single-use sterile tubing kit... |
I have acid reflux. What is happening inside of my body that makes it feel like I am softly belching molten lava? | You are burping up a strong stomach acid and while your stomach has a protective lining, your throath has not. The acid is corroding your throath and that feels like belching molten lava. |
Why do humans only have one hair color, but other mammals, like my dog, have more than one hair colors? | 1) When an animal is being hunted, if they blend in well they have a lower chance of being caught. So they will live to pass on their chromosomes and so on and so forth. [Read about Disruptive selection] [Countershading - when an animal's stomache has lighter color] [And dog coats!] If this doesn't explain it well enou... |
Which countries don't rely on the US for their internet? | Net neutrality won't really affect other countries. Comcast, Verizon don't control the backbone and messing with the backbone would quickly get America as a whole thrown off the internet. As a general rule most big/wealthy countries control their own internet. China for instance blocks most foreign web sites for politi... |
Why are American right wing politicians and citizens so adamant about denying climate change? | 1. If the government concludes that man-made climate change is a real thing, and a problem, then they will probably change policies in order to respond. 2. Some of these policy changes will probably decrease the amount of fossil fuels Americans consume, and others will probably require significant changes to cars that ... |
The difference between lager, ale, beer, and more(?) | There are a bunch of different alcoholic drinks that are made from barley . There are two key distinctions that are relevant to the terms you 've named: ale vs beer, and ale vs lager. In the ale vs beer meaning, *ale* is any kind of fermented drink that's made with barley malt . *Beer* has to be made with hops, the flo... |
Why ejaculation feels better the longer you last? | Because your brain has more time to "set things in place" - orgasms are partly chemical and partly electricalWell I think this is more of a mental thing. Usually when we last longer that must mean that we pleasured our partner better giving us that initial satisfaction followed by the second satisfaction thus, a double... |
Why do I get addicted to stupid idling games like Cookie Clicker? | because they are: 1) simple2) engaging3) rewarding It is my personal theory that if you make something be all three of these things that people will do it - it doesn't matter what it is. Games are just conducive to being these three things. Now just because something isn't all three doesn't mean people won't do it - bu... |
In what sense have creditors been "pillaging" Greece for the past five years? | To make a long, complicated story short: external investment is necessary in order to maintain a functioning government in Greece. No investment, the government has no funds to operate, and falls apart completely. Because capital is globally mobile, investors are not in a situation where they have to accept terms from ... |
What led to the "Top 1%" economic gap? And compared to how the general population perceives it, what is the actual economic spread? Is the government doing anything about this? | This is not a new phenomenon. The [power curve] has shown up in economics and various other disciplines again and again. This was first analyzed in a scholarly context by Vilfredo Pareto, who in 1896 noted that [80% of the land in Italy was owned by 20% of the population.] Research and simulations suggest that this ine... |
Why aren't chapters still added to the bible? What would somebody have to do to get something added to it? | They do add new chapters to the bible. The mormons added a bunch for instance. The problem is that not everyone is on board with that so new sects form. |
What is the difference between asthma and bronchitis? | Symptom wise they are pretty similar. From a health care professionals standpoint, bronchitis would be more acute and caused by an infection or such and asthma would be a chronic condition. Physiologically, bronchitis and asthma both have inflammation involved but asthma mostly involves the tightening of the muscles as... |
Why are there no Wikipedia pages on famous medieval jesters? | Apparently your Google/Wiki search talents are awful. [Archibald Armstrong] [William Sommers] [Robert Armin] |
What happens if an astronaut aboard the ISS should need immediate surgery (ie: Appendicitis)? | There are various medicines on board that they could use, as well as consulting with doctors on earth. If those didn't help, there are emergency Dearborn procedures. A spare Soyuz is kept docked to the ISS for emergency situations, such as medical emergencies, or meteoroids. So if necessary, they could try to return to... |
How can a huge statistic such as the world population be even remotely accurate? | Well, governments do. They issue birth certificates and death certificates. Of course it's not totally accurate but the census teams do a lot of research to estimate how many records are missing and figure out the margin of error. That's included in the estimated population.What is your definition of "remotely accurate... |
How do our bodies "Naturally" wake up with no alarm, nobody mowing their lawn outside etc? | Your body has what's called Circadian Rhythm. It determines basically when you sleep and when you eat but is affected by the sun and your environment and any number of other factors. Even more basically it tells your body's metabolism when to work and when to chill out. If you've been sleeping too long your body will w... |
Why sometimes when you hang a towel or jacket, it slides or falls off many hours later? | Probably ghosts. Or maybe just some air flow, the air conditioner kicks on. Or potentially if its a wet towel, the water collects to the bottom and redistributes weight. Or potentially its just moving very very slowly to start with until it drifts far enough to start moving quickly. Basically think of a towel like a th... |
Short selling. How can you make money betting against a stock? | If I told you I was going out of town and could pick up something you wanted, I could ask for the money up front. We both know what it's worth now. However, when I actually get there, the price has dropped, and I just pocket the difference. |
How can a 300m wide comet hitting Earth be so catastrophic? | Because it has a lot of kinetic energy. Drop a bullet on your hand from six inches and it won't do any damage, shoot a bullet at your hand and it will FSU.The initial impact will generate a huge amount of heat, a plasma field in fact, that will literally engulf and vaporize virtually everything to the horizon in every ... |
How do vacuum cleaners work? | They don't create a vacuum. They work just like a leaf-blower, but in reverse. The bag in the vacuum cleaner let's air through so the garbage get's trapped in the bag and the air is released out of the machine. Just put your hand on top of the part that makes the noise and you can feel air coming out of it. |
Why are x-rays harmful? | X-rays are, in essence, very stong sunlight. When you bask in sunlight, it warms you. Now, imagine light much more powerful than that. It'd do more than just slightly warm you up. The most harmful thing in x-rays is that they damage your DNA. Most of the time it's okay, as the cells can either repair the damage or self... |
is there any actual benefit to natural diamonds versus cubic zirconia? | You know that a cubic zirconia is not an artificial diamond, right? It's just that in jewelry it can be cut to resemble a diamond, even though it doesn't have the exact same properties . |
How did the nation of Israel come to be? | There had been a movement among certain Jews for decades to re-establish a Jewish state in the Middle East. As a result of this movement, Jews had established population beach heads in many parts of British Palestine. Before World War II, and after it ended, there was major turmoil in the region between the British Col... |
Why was the concept of the month developed/accepted? Why don't we count the date as "Day 275" of the year, for example? | The concept of the month was based on the cycles of the moon, which last about 29 days. The English word "month" comes from the word "moon"I feel stupid as hell now, I knew that already |
Why was Canada involved in WWII if they were never directly attacked? | Because the UK was. Britain pulled the majority of their former colonies into the war; remember, Canada did and still does share a head of state with the UK.Because we're not a bunch of cowards who need to be attacked to do the right thing. -- Canada [In a friendly, joking way]", 'And possibly also because the Canadian... |
What is 'visual theater'? | This is not a standard term, so you are not going to get a good explanation here. Sometimes artists just invent terms. |
Why is 80 proof (40% alcohol by volume) the standard alcohol content in most hard liquors? | When a similar question was asked [last year], it was shown that it's in fact regulated in the US that liquor is bottled at not less than 80 proof. Most vendors, therefore, tend to dilute alcohol to the minimum required by law in a major market , though there's some variation from country to country.I personally though... |
Why do people have such naturally fragile feet (requiring shoes) when other animals do not. | We don't have naturally fragile feet. Most of us have unnaturally fragile feet because of the invention of footwear. |
Why are today's weight standards different from the mid 1900s? | There's nothing particularly wrong with BMI. It's a rough guide to an appropriate weight. BMI was never designed to be accurate; it was designed to be an easy to use guide. In general, nothing much has changed to require a change to BMI guidance since the 1950s. There are a few more people who do serious body building ... |
How do humans still evolve? | Well an important thing to remember is evolution doesn't have to be exclusively beneficial traits. It's always been my opinion that science and modern medicine will negatively affect the "evolution" of humans, and only further scientific advancements will be able to cancel out the negatives it originally caused. For ex... |
How does a CPU work? Please use simple metaphors for each subsystem. | [Check out this video.] It explains not only the CPU but also how it interacts with the RAM. |
Why emotions from suppressed sources feel much stronger than regular emotions | Your sister makes your life worse, by continuing to piss you off over a period of years. That has a much greater effect on you than some random annoyance in your life that is perhaps only going to happen once. It is oppressive to know that you will continue to be troubled by your sister for some indefinite time to come... |
Why does water taste different after sitting for a few days? | Bacteria and other microbes are everywhere all the time, and they need water to grow. So what you're tasting is a melange of those microbes and the waste they produce as they grow. They've been floating through the air or transferred by some other means , or may have been in the water from the beginning. At any rate, w... |
What is a Soliton, in regards to physics? | They are specific shapes of waves that can travel very far without dispersing like regular waves. Solitons exist in many different mediums of wave, e.g. water waves in canal or light pulses in optical fiber. |
is Nelson Mandela a terrorist or a hero? | He certainly engaged in activities that would be considered terrorism if anybody did the same thing to a western power. And he was technically still on the US terrorist watchlist until 2008. But by doing these things he probably saved more people from death, torture, and other hardships than if he had done nothing_URL_... |
why can't we reproduce the contitions or environment to make truffles? | We can. Wikipedia says that people began to notice that truffles grew under certain trees and cultivation was common in France. _URL_0_Upvote because I need to know this too. I fucking love truffles, and life would be great if I could afford to buy them more than a sliver at a time.Truffles can be and are cultivated. A... |
If lenses are round, why are photos square? | actually, squares are rectangles, but thats not important. First rule, you cant reasonably make a square lens. Its all easier round. Ok, so now do you make a round film? round digital sensor? round pictures? round picture frames? No its clear the end result will be a rectangle, and in the case of film, you would have t... |
How do women use the john while wearing dresses, especially the long flowing variety? | There are generally ~~two~~ three ways. 1. If it's just a skirt or if the dress is easy enough to take off, you can just pull it down like you would with your pants. This is usually not a good idea in public restrooms, because it will result in having your skirt/dress pool on the likely very filthy floor. The main bene... |
Why are higher values of money made with paper rather than coins, if coin money lasts longer? | Paper is cheaper to make and people don't like carrying coins around. In the US the Sacajawea dollar was tried for awhile a few years ago but never caught on because most people still preferred paper bills. |
What's actually happening when we laugh so hard it hurts? | You're causing a hypoxic state in your diaphragm and other accessory respiratory muscles. Source: I'm a paramedic student. |
Why does paper money have serial numbers but coins do not? | Serial numbers are an anti-counterfeiting measure. The US government is not seriously concerned about people counterfeiting coins because of the difficulty and extremely low reward for the riskprinting individual serials on paper is way easier than stamping them into a piece of metal |
What is that "hot blooded" feeling you get when you feel aggravated? | Your pulse and blood-pressure rise to prepare yourself for a fight. That means more blood gets pumped into your head and face, too. Since blood is warm, you feel hotter. |
What does pain feel like? | Wow, thinking about it, this is a very loaded question. It's difficult to explain pain to someone that can't feel it. I imagine you've suffered some emotional pain at some point in your life. If I had to describe how physical pain compares to that, I'd say it's fairly different yet somehow similar. Personally, I think ... |
Can someone explain ancient Greek city-states to me like I'm five? | They were closer to cities today than countries. Perhaps the best modern analogue would be modern city-states or semi-independent territories Singapore, Taiwan, Hong Kong, etc. A small population, but with a strong national identity. These were the first state-like entities; a city is physically small enough to make bu... |
How to understand camera lens F numbers | A 12 gauge shotgun is a larger barrel than a 20 gauge shotgun. A 6 gauge ear stud is bigger than a 14 gauge ear stud A F/2.8 aperture is bigger than a F/5.6 aperture. If you think of photography like filling a bucket with water , then the aperture is how wide your hose is, and your shutter speed is how long you turn th... |
what causes the White Cliffs of Dover, and other white cliffs to be white? | The cliffs are made out of chalk. The same stuff you use to write on blackboards. The cliffs are the result of lots of little organism dying in that place a long time ago. |
why the US military can't deploy military police officers in areas of the country with little police presence or cities that can barely afford a functioning police force like Detroit? | The US military is not allowed to operate on US soil save in the event of invasion or fighting those of treasonous disent . It is one of the protections that prevent the President from becoming a dictator.The Posse Comitatus Act severely limits the power of the US federal government to use the military to enforce the l... |
Why do waves in the ocean look frozen when you look at them from an airplane? | They are continuously moving, but with nothing nearby as a reference point and at a great distance, it is hard to tell. It's like how a plane in the sky looks like It's going real slow, when it's actually going like 600 mph. |
Supernovae, Neutron stars, and black holes. | * **Supernova**: when a massive star blows up, initiated by the sudden collapse of it's core. The collapse of the core is initiated when the pressure from nuclear fusion can no longer hold up against the immense gravity pushing in. There are generally two types, Ia and II.* **Neutron Star**: a super-massive and super-d... |
Why would a three degree increase in the average global temperatures have such a devastating effect on sea levels? | It doesn't take much to upset a balance. For example, if in the past the ice caps grew during the winter and melted during the summer at about equal rates, the water levels would not be affected. But increasing the temperature just a few degrees would mean that now every years the ice caps are melting more than they ar... |
Why does flushing the toilet make the water in the shower hotter? | Toilets use cold water to refill their tanks. Flushing causes the tank to refill. Showers mix cold and hot water to get the temperature you want. Cold water is diverted to the toilet leaving only/mostly hot water. More modern plumbing systems don’t have this issue, but its prevalent in older houses. |
Why do we make cars that easily go way faster than the speed limit? | Well, all countries have different rules, the same goes for speed limits! The best example is Germany, they are known to have roads with NO speedlimit, meaning you can go as fast as your car will take you!. That also explains why there are many sports cars in that country too. How about other countries with speed limit... |
Why are babies attracted to cartoons and not regular television shows (non-cartoons)? | I'm pretty sure it has something to do with the soft shapes and simpler designs. That's why shows like blues clues are the way they are. I don't really know but I hope that helps. |
the situation in Kashmir? | Alright, let's go back a bit. This is the really short version, since there's tons of nuance to this subject that you easily can--and many have--write a book about. During the 19th and early 20th century, what we know know of as India and Pakistan were ruled by the British. There was no seperation between India and Pak... |
Why are you not supposed to use cruise control while pulling heavy trailers? | Say you get a speed wobble. You need to come off the throttle immediately and slow down to recover. Your cruise control obviously doesn't know a speed wobble started and staying on the throttle will make the wobble worse. Same thing can happen in slippery conditions. Cruise control can make the car slide more if your t... |
How do they build those rickety rope bridges? I can't wrap my brain around it... | Generally you take a thin rope that's a lot longer than the gap, secure one end and take the other end the long way, down through the valley or whatever. You pull it tight and secure it, then you can use that rope to pull across a bigger, heavier and stronger rope, and do that as many times as you need until you've got... |
Why does a mobil's GPS need mobile data and data connection to work? | Your phone doesn't need a mobile connection to receive GPS signals. As you rightly suggested, these are constantly transmitted from orbiting satellites, and no internet connection is necessary to receive that data. However your phone does need an internet connection to download the maps which it uses to display where y... |
What is the evolutionary purpose of pine cones? | The pine cone contains seeds, when it's wet the cone "scales" tighten up and close, and when it's dry they open. This means that when seeds get blown out it's drier, which means they travel further. The cone itself is just the bag for the seeds, it's not useful itself after the seeds are gonePine cones seeds all fall o... |
Why can you just tag the base to get a runner out at first in baseball but it seems like you need to tag the runner himself all other times? | It's an issue of "forced" or not. If the runner has an alternative destination then you have to tag them, if they do not you can tag the base. In the case of a runner stealing from first to second, the runner could return to first base if they decided to do so, so you must touch them. When the player has just hit the b... |
What the difference is between The District of Columbia and a regular state in The US. | In the United States there are levels of government. Federal Government, State Government, County , City/Town etc. Each state government has a lot of latitude in passing laws as they see fit, essentially free of Federal interference, as long as their laws abide by the Constitution and certain other laws. The people in ... |
Why is using "I have black friend(s)" not a valid rebuttal to being called racist? | Having one black friend doesn't mean a person likes all black people, that one black friend could just be the exception to the rule. It 'd be kind of like a man saying "I'm not sexist I have a wife" and then saying something like "a woman's place is only in the home". |
How do trees die? Do they have a life span and die from "old age", or do they only die when they become infected with a fungus/infested with termites/etc.? | They die like anything else. Sure they can die of the causes you mentioned. Even if none of those happen to the tree, over time cells become less able to reproduce identical copies of themselves. Due to this, the tree will not be able to keep growing or replace its current cells, so it will die. Trees don’t need to rep... |
When the leader of the country calls the leader of another country, how does it work? | In the Case of the USA and Russia they have a dedicated connection for diplomatic communications. In general, though, communication is done via the respective ambassadors in each country. Acting as a representative of a state is what makes the ambassador the ambassador after all. Various means of sending information to... |
Why land masses who are somewhat close to Antarctica such as New Zealand don't get cold? | New Zealand is somewhat close to Antarctica in roughly the same way as Paris is somewhat close to the Arctic, and has a broadly similar climate.Simple answer is that they aren't as close as you think they are. Houston Texas is closer to the Arctic circle than Sydney is to Antarctica by about 200 miles. |
The whole thing about DRM and Ubisoft. | Ubisoft is notorious for the DRM in the games they make. The most frequent example of it is the requirement to be connect to the internet at all times while you play. So if you wanted to play for example single player Assassins Creed but where offline no dice. The reason for the DRM was to stop pirates, you cant play t... |
How does a medicine, like one to help quit smoking, develop into side effects like suicidal thoughts? | Because it changes the chemical composition of your body, specifically your brain chemistry. Think of it like this: Medicine A works by causing your brain to produce lots of chemical A. Chemical A being present in your system helps to curb your desire to smoke, which is great. But chemical A does lots of things besides... |
Why does hot air seem difficult to breathe? | Hot air is less dense than cold air so there is actually less oxygen present in it for your lungs to pass into your bloodstream |
How does the website _URL_0_ predict gas prices? | Future fuel prices are based on todays crude oil prices, so lets say on monday, a company buys enough crude oil to generate 100 gallons of fuel for $50, that they sell for $1 per gallon. They get a delivery every monday, wed, fri. On Wed's delivery, their price has risen to $52 for 100 gallons, so when they are legally... |
Why does sand harden when water touches it? | Mostly because water likes to stick to things . Sand is a bunch of tiny rocks all sitting in a pile. When you pour water onto sand, the water gets into all the little cracks between the grains. Water, as I said above, likes to stick to itself moreso than than the air that used to be between those grains. As such, the w... |
When I charge my phone through the USB port on my computer, does it charge slower than it would through a wall charger? | The answer is, alas, "maybe". If your PC was build before 2012, and your phone uses a 2A charger, then yes. Even if neither of these is true, then it still might be "yes". The USB standard for peripheral devices specifies that power consumption can't exceed 100mA without negotiating a higher transfer rate over the prot... |
How social security contributes to national debt | Social Security was doing great. In fact, it was doing SO great that as the Baby Boomers entered the workforce, it took in WAY more than it needed. However in a rare event, Congress was smart and realized "Yeah, but we're going to be needing this money when all these folks retire." So they decided to save it up in a **... |
Why is water in drawings portrayed as blue even though most rivers and lakes do not look blue? | Large bodies of water like rivers, lakes, and oceans really are blue. Pure water with nothing else in it is transparent. But large bodies of water are not remotely pure. You know how a bottle of maple syrup looks dark brown, but a small drop of it looks very light brown, almost transparent? Large bodies of water are th... |
What exactly is the difference between Arab and Persian? | I mean, this is kind of like asking "what's the difference between French and German?" Well, a lot. Arabs speak Arabic, Persians speak Farsi Arabs are principally from modern day Syria, Iraq, Egypt, Lebanon, Jordan, Kuwait, Qatar, UAE, Oman, Yemen, and Saudi Arabia while Persians come from modern day Iran. Persia exist... |
why pens appear 'bendy' | Believe it or not, like a camera, our brain has a "frame rate" or amount of information we can take in per second and process. It's about 15 f/s. Since our minds take in information in this finite way, filling in spaces as it needs to for the perception of motion, we can get fooled by motion blur, like a pencil wigglin... |
When watching a game/fight how do they and who is in charge of switching from camera to camera for the best shot. | Former TV News station employee here. Your local station doesn't have any control of the game being aired. The network itself has their own crew at the game. Each camera is routed into a main control room, where there is a crew of people controlling what makes it on air. You have your audio techs, who control the sound... |
What is "blue light" and why does filtering it on my phone help protect my eyes? | The most important thing about filtering blue light from your electronic devices is that blue light keeps you awake at night. Light signals your body to stop the production of melatonin and destroy the melatonin in your body, and blue light is the most effective at causing this. Melatonin signals the rest of your body ... |
Why is the tenth month called October? Did it used to be the eighth of something? | Yep. In the Roman calendar, the year started in spring -- that is, with March. They had ten months, and then just said "aw, fuck winter, it's not worth months." That didn't last, so two more months were added at the end of the year -- January and FebruaryThe pre-Julian Roman calendar began in March and had a total of 1... |
why do root beer floats foam when you put the soda on the ice cream? | The ice cream has a very rough surface and is cold. The level of dissolved carbon dioxide in the soda is a function of temperature; the colder the liquid, the less carbon dioxide it can hold. The cold temperature of the ice cream causes the soda to cool, forcing carbon dioxide to come out of solution and form bubbles. ... |
How did a piece of leather sharpen an olde timey razor when leather is softer than steel? | The purpose of the leather isn't to "sharpen" it's to "hone". In the first stage of getting dull the tip of the razor will bend. The leather strop is used to \'push\' the tip back into the right alignment without removing any material. This process is called "honing", you should do it a lot, which is why you don't acut... |
When a gun is fired in fully automatic mode, is the recoil pattern predictable or random? | I 've fired exactly two automatic rifles in my life, I was young and didn't know the type of one, the other was some hands on historical thing and I was allowed to shoot a tommy gun filled with blanks down range, but it was pretty "predictable" both times, every shot gives recoil, so as long as the shots are consistent... |
What gives art its value? | We give art its value. Its primary value is in what the art says. In 1917, an art museum was running a promotion in which they advertised that they would accept any form of art in their museum. Duchamp challenged this notion by submitting a urinal, signing it, and submitting it as a piece. The museum tried to protest a... |
How can there be any hope of stabilizing CO2 emissions if they are still steadily increasing? | First of all, let's make sure we all understand what we mean by stabilising CO2 emissions. Because of the long residence time of CO2 in the atmosphere, the figure that actually affects the climate is not annual CO2 emissions but *cumulative* CO2 emissions. This means that the problem is going to get increasingly worse ... |
How come we can increase our muscle mass but not our bone density? | We can increase our bone density. If it happens too much, it would result in osteopetrosis. Nutrition affects the bone density as well as other factors. Calcium helps bones grow stronger, which means denser. |
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