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Why don't private jets fly faster than Mach 1? | I'm pretty sure there are regulations about exceeding mach 1 due to the sonic boom it would generate. Thus they are restricted to flying over oceans at that speed. |
Why are mice bodies viewed as analogous to human bodies in laboratory settings? | We're both mammals, with all the same organs and subsystems. Just the 'code' that grows them says small, four feet, big ears and tail, not big-ish mostly hairless ape with freakish big head. There isn't a single bit of you that you can't find in a mouse, but with a different shape, and smaller. The microscopic things a... |
the dangers of the Atkins diet. | No five year old is going to read all of these long responses. Let's be realistic here. I want a TL;DR option. |
What is this whole new Tide Pod rage? | Good question. I'm guessing someone young did something stupid and it caught on. I'd google it but I really don't want to support whatever it is in any way.This is probably better in r/outoftheloop. Have you tried asking there? |
What elements make pirate music sound like pirate music? | Are you asking about actual pirate music? Or are you talking about pirated music. If talking about actual pirate music, it's usually the same instrument, a squeeze box I believe, that is used for almost all of them. You also got your violins and such. |
Isn't religion just a massive conflict of interests? | I'm going to remove this, as it's not really an ELI5 question. > ELI5 is for requests for easy-to-follow explanations of complex concepts and subjects. That means no questions that are just looking for straightforward answers, that are subjective, a request for a guide/walkthrough, or that are objective but not asking ... |
How is it possible that when talking on the phone, person A can suddenly lose signal and not hear person B, but Person B can hear person A perfectly well? | phone A connects to cell tower 1 and pnone B connects to cell tower 2. Imagine a 1-way radio connection. In order for phone A to speak to tower 1 it has a finite amount of power sent to the radio transmitter and so sometimes signals are very very. The tower has a lot more power attached to its receiver so it can boost ... |
Why do massages feel better when someone else is doing them to us then when we do them to our selfs. | Same reason someone else's cooking tastes better, we're not critiquing as hard and we're relaxing and fully taking in the experience, instead of having to do the work. |
Why do Christians not celebrate Jewish holidays alongside Christian holidays even though the old testament of the Bible contains all the books in the Tanakh (Jewish Bible)? | My impression is that according to Christian doctrine, it's no longer needed to observe many of the Jewish Old Testament laws in the post-Jesus world.I thought about this question over the weekend. A couple things There are some Christians who celebrate all the festivals/feasts from the Old Testament. This group calls ... |
Why protein is so important for muscle building | On my cell phone, so short and sweet. Protein is the molecular workhorse in all cells. Every cell in your body requires proteins in various forms, all of which perform functions. Some are structural, some make reactions happen more quickly, and some regulate your DNA. When your muscles are fatigued, they are using prot... |
How does a Jet Afterburner work? | Expanding exhaust gases still inside a convergent duct. Pressure increases as velocity decreases. More fuel is added and ignited forcing even more rapid expansion of the gases. A variable area nozzle at the exit aids in pressure/velocity ratio efficiency. Not sure on the actual math as I'm only an airplane mechanic not... |
How does a Crock Pot not burn your food after hours of cooking, even though it’s not being stirred? | Fun experiment! FIRE SAFETY plz Blow up a balloon with air, hold it to a flame. Fill a balloon with water, hold it to a flame. You will be able to boil that water if you are patient enough. The water absorbs the heat, same with the crockpot. The water vapor forms an air-tight seal and the temperature won't really rise ... |
Why did no one expect the meteor that blew up over Russia last year? | There are literally billions of pieces of rock and garbage in space. We simply can't track all of them all the time. In this case, the rock was initially too far away to see, and when it was close enough to see, it wasn't in a location that was visible by ground-based equipment. We simply missed it.We *did* expect it o... |
What's actually happening after lifting weights that makes the muscles feel like they're trying to push their way out of the skin? | You achieved the pump!They're swollen with so much blood that they are stretching the skin that's covering them taught. So it feels like exactly what it is. |
Why is a 50hz TV considered bad? | Chances are it will actually do 60Hz. Probably just advertised as 50Hz because TV is broadcast at 50Hz where you live. So there's nothing wrong with it really. It just won't do the interpolation thing which you'd want to turn off for games anyway. |
How does camouflage actually work at the cellular level? | The cell doesnt change chemistry. It changes shape. There's cells of various colors, and certain muscle groups that push cells of the same color groups to the surface of the skin. Push red ones closer to translucent skin and you'll appear more red. Push yellow ones and you'll be more yellow. |
why is it that in all movies and TV shows, characters never end a conversation on the phone by saying "goodbye"? Instead they simply hangup, regardless of genre or tone. | Pro-tip: don't try this in real life; they'll just think you're an asshole or that you got disconnected and will call you right back. |
Why do jpgs lose quality/ get "deep fried" when they are downloaded too often? | Let's say you download a 10 mb photo. You then reupload it, but the site you reupload it to only allows a maximum of 5 mb. So you compress it and post it at 5mb. Jonny sees the 5 mb photo and likes it so much, so he saves it. But 5 mb is a lot, so he compresses it to 3 mb. Doesn't really matter if during a few iteratio... |
How does this trick "magic" circuit work? | Basically he lied about what he was building, the components he used are not what he said they were. Not standard switches or LEDs, no they are all different and have been modified. They use different frequencies to turn on or off, that's about it. |
When some gave devs make in game trailers, how finished is the game/product used? | I have a dear friend who leads a team over at 343 Industries , so I can shed some light on this. It depends on the game. If it's a highly anticipated game, it is very likely that a significant portion of the work will have already been done. The engine will be in place, most of the models, sounds, and cinematics will b... |
How is Greece facing bankruptcy, but yet the U.S., which is over 18 trillion dollars in debt, not? | The US government has a massive income. In 2014, it collected $3.02 trillion in tax revenue, and that amount is rising. There's almost no doubt that the US will pay off it's debt. |
Why should contraception be free? | If you can't afford even a cheap co-pay, you really can't afford to raise a kid.One of the provisions of the Adfordable Care Act was to have preventative care be free without copay. The thinking being that anything that encourages preventative care decreases long term health care costs. Contraceptives have been classif... |
Why did people look older at my age, in the past, compared to now? | You associate their style and other artifacts of the time with being 'old'. For example big glasses were popular in the 80s and normal to wear , but now older people wear them that haven't changed their style since the 80s.If you went back in time and took the senior HS class from 1980, and did a total makeover on them... |
If many locomotives use diesel engines to power electric motors (which turn the wheels), why isn't that same kind of efficient system used to power motor homes (large RVs)? | The electrical controls necessary for acceleration and deceleration are expensive and complicated. Advances are being made, but mostly in smaller scales . I read recently that hybrid buses are available, but they're several times the cost of conventional buses. |
How is this noise possible? | If you listen closely, you can hear a new high tone starting about every 30 seconds or so. I'm sure the lowest tones in the sequence are fading out at a certain point although I can't detect it. |
how do anti-lock brakes work in a car? and how are they safer than normal brakes | There are wheel speed sensors on each wheel in the car, normally when brakes lock up one set will lock up first i.e. the rears will lock up while the front still rotates. A computer will detect that the front wheels are still turning while the rear wheels are locked up; it will then modulate a valve in your braking sys... |
Why is it not possible to reach light speed via rotation? | When you're spinning something so the outer edge is 1c, you're also putting enough energy to make 1m inward move at 0.999999c, and another meter in at 0.999998c, and another meter in at Those numbers are demonstrative estimates, not real numbers but see the pattern: it will take a lot more energy to accelerate your rot... |
Why do they give opiate addicts Methadone instead of a prohibitive like Narcan? | Also, it is inaccurate to say that narcan prevents the withdrawal. Quite the opposite, actually. It triggers immediate withdrawal symptoms, as it binds to the opiate receptors and prevents them from taking in any more of the drug. That's why it works so fast. |
Why can it be normal for girls to dress like boys but boys can't dress like girls? | We can say its gender biased etc, imo its because womens clothes are far more tailored towards women than mens clothes are to men. Pretty much all of our clothes aside from maybe very dressy things and underwear are extremely neutral and basic. 90% of the time you aren't working what do you wear? Probably a t-shirt and... |
How are banned cartoons that are never seen found and uploaded? | You underestimate the VCR generation. It cannot be overstated how big a deal VCRs were. It used to be if you missed something on TV, that was it, game over. You might get lucky enough to catch it as a rerun next summer, or next year in syndication, but you weren't going to see it again anytime soon. But once you could ... |
How do residuals for the actors work for Netflix, Amazon, et al. | Unlike commercials and TV/movie residuals, there are no rules set by the union yet. It's really dependent upon the contract that the actors' agents/managers agree to. |
What is smartness/braininess/IQ? Is how smart a person is genetic? | The topic can be controversial. What I will say is: the people I know with high IQs are better at learning things, processing information in to knowledge, and using that knowledge when deciding what to do or not do. They are better at long-term planning, and at envisaging the consequences of their actions. They don't j... |
How would deflating a NFL football (ala The Patriots) give you an advantage? | Colts lost 45-7. I don't think this was the reason they lost or were at a disadvantage.Why are all you guys saying it would WEIGHT different - that is not the advantage! The ball would be softer - a properly inflated ball lin cold temperature would be much harder as the ball is expanded more with more internal pressure... |
Why do we feel the need to pee much more than the need to drink? | In addition to the previous comments, keep in mind that you're also getting water from the food you eat , so even though you don't exactly drink water that often, you get a lil' hydrated in this way as well.also, early morning stomach grumbles that are usually associated with hunger, have more to do with dehydration. i... |
why do cigarette smokers inhale? | Cigarettes average between 2 and 12mg of nicotine per cigarette. Cigars and pipe range anywhere between 100 and 250mg of nicotine. The latter are also unfiltered, and therefore their smoke is considered much sharper. Because of these higher concentrations, combined with the harsher smoke, you don't inhale cigars and pi... |
How does putting red meat on a black eye help? | It's not about the red meat, it's the fact that most people freeze meat more often than other foods, therefore it's the only ice-cold thing you can use to numb the pain. |
I come to another planet in another solar system and this guy asks me how old I am. How do I explain my age? | Whip out the ole' cell phone, show this guy the stopwatch feature to accurately demonstrate how long our units of time are, and then extrapolate from there. Alternatively, if they can see our solar system from their planet, point the Earth out to them and tell them that you rode it around the Sun X number of times, and... |
If the FBI is ordered to make something public, what's stopping them from only giving the information they want? | Really nothing. I'm sure there are historical open records now that show they've lied all the time under oath. I believe sometimes they are instructed to do so by secret closed courts on grounds of national security. The court doesn't know the truth, they rely on the source to offer complete accurate records which they... |
If I drank exactly to my body's requirements would I stop needing to pee? | One of your body's requirements is getting rid of waste. It uses pee to do this. You can't not produce waste products, short of being dead. |
Is solar energy essentially free energy and if so, why is it not being used on a grander scale? | Solar makes up a little over a quarter of [new installed capacity] in the US, while Wind and Natural Gas make up the bulk of the rest, so it's being deployed relatively widely. Renewables are tricky though because the up-front cost is quite high between equipment and real estate, and they're subject to the whims of sta... |
Fear of heights. Can one be learn to not be scared of heights, and become like these guys? | To expand on the Cognitive Behavioral Therapy angle, The main thing you will try will be exposure therapy. You'll just acclimate yourself yourself a little at a time in very controlled settings in a very safe and measured way. With a skilled therapist you make good progress and you'll find yourself doing things on your... |
Why are Africans (specifically Kenyans & Ethiopians) so much faster than everyone else? | They have high levels of type 1 muscle fibers. These fibers are intensely resistant to fatigue and allow a higher steady state threshold ", 'Good answers, but it may be a little more [gruesome] than that.From Malcom Gladwell's article *Man and Superman*: > A runner needs not just to be skinny but—more specifically—to h... |
How does a filibuster work? | those meetings have a scheduled time, after which as you said, people leave to reconvene another time. A filibuster is basically attempting to waste the entire meeting's time limit with a speech, so that time runs out. Here's a silly example: there's a quiz today at class and you don't want to take it. So right away yo... |
Why can't Helicopters deposit large oxygen bottles strategically on Mt. Everest or pick up people in trouble by harness? | 29,029' that's why. You realize that helicopters fly by beating the air in to submission, right? If there's no air to beat into submission , they don't fly. There is a video of a helicopter that made it to the top and actually hovered for a little while under the most ideal conditions. Go take a look at that. It's a tu... |
How are humans capable of "hearing" our stream of consciousness without speaking? | _URL_0_ I'm hesitant to try and give a ELI5 because I don't really understand this myself. Here's a little article you may find interesting while waiting for an explanation though.Do you mean our "thinking" voice or how some people actually hear voices that aren't there?When your asking questions like this you will be ... |
Is there actually a difference between generic brands vs brand names? | My understanding is that when it comes to medicine, the difference is the tolerances. Take, for example, ibuprofen. Advil, the name brand ibuprofen, might give you a pill with 200mg of ibuprofen. The generic brand would also have a pill with 200mg. But the pills aren't actually 200mg. Advil might be 199mg-201mg, where ... |
When they came together, why is defecation always previous to urination? | Do you mean, why do we shit before we piss when we're sitting on the dunny?", 'Am I the only person who does both simultaneously? Just relax your muscles, people! |
How do lane departure warning systems work? | There's an open source implementation called Openpilot _URL_0_ It goes into some details of what is/what it does etc |
Please, why can't movies be mixed so that I can hear the actors when I watch at home? | DRC", or something similar. Turning this on will boost the audio on the quieter parts of the movie so that it's closer to the audio for louder parts. It's also possible that if you have a surround sound system, the gain on your front speakers may not be high enough. In general, dialogue is only sent through the front s... |
Why do all Bowling Alleys have a similar scent that I haven't smelt anywhere else? | Yeah that's the remains of millions of cigarettes from when you used to be able to smoke inside. You kids won't remember walking into a cloud-filled bowling alley. Ah, those were the days. |
Why can't tech companies make copiers that don't jam? | There was an article all about this problem recently that went very in depth on the problem: _URL_0_. The short version is that paper is an organic product that varies wildly in properties, printing is a complicated precision operation, and the paper has to travel a very long path, and when you combine all that togethe... |
why aren't prescription drugs pre-packaged in the US? Wouldn't it be more efficient? | The drugs go to more than just pharmacies at your drug store. They go to hospitals and nursing homes too. It is easier to manage on the manufacturing end by and large. There are some medications that have packs since they are very standard dosages like steroids after out patient surgery, but things like Adderall, Opioi... |
What should I know before opening a bank account? | Couple things: * Is it free checking?* If yes, is there a min balance before they start charging you fees? * How many ATM/branches are there? Are they convenient located?* Can you use your debit card on other banks ATMs for free? If so, how many times before they start charging you?* Is there overdraft protection? My o... |
Could the events of Red Dawn actually happen? | No, no it couldn't. It takes a major undertaking to move troops and heavy equipment across the largest ocean on the planet. You need a lot of ships. You also have to have air cover, or your ships will be sunk by airplanes. And you need anti-submarine patrols, or subs will sink things. |
Cops/Lawyers of Reddit, can you explain a bit about citizens arrest? | It depends on where you are in the world, but the rules in Australia are: **Crimes Act 1958 - SECT 462A** *Use of force to prevent the commission of an indictable offence* A person may use such force not disproportionate to the objective as he believes on reasonable grounds to be necessary to prevent the commission, co... |
Objectively, what are the limitations of carbon dating? | 1) Carbon dating only work on death organism. Living organism get their carbon from their environment. So as long as they are alive they keep a ratio of carbon 12/ carbon 14 similar to their environment. The moment they die, they stop exchanging carbon with their environment and so the ratio of carbon start to drop as ... |
Why are tips percentage based, when it's the same amount of work for the server? | Tips are percentage based because it often *is* more work for the server; your comparison of the steak and burger are irrelevant because meals generally don't consist of a single item going to a table. To put it another way, so you have a table of two; they each order a water and a salad, and the bill comes out to $25.... |
What's a fraternity? | It's an organization you can join in college. Most party, work with school government, host charities, etc. It's pretty expensive to join one and a lot of people call it 'paying for friends' but it's good for a resume if you're active in it. Is there any specific questions you had about them? |
Why is seawater so hard to convert into drinkable water? | Not that it's hard, it just takes up a lot of energy. Boiling a just kettle of water takes quite a bit of heat energy to accomplish. Now imagine expanding that to an industrial level by boiling several tons of water at a time. The energy expenditure is immense. |
Is artificial intelligence really ever possible? | We already use AI in a wide range of applications, such as stock trading and data sifting. Driver-less cars would be considered a form of AI. But as far as learning more than it was programmed to, we're almost there. Though there are many different kinds. Here are a few: **Artificial Narrow Intelligence **: It speciali... |
When, if ever, I should use the parking brake on a car that has an automatic transmission. | The best general rule for using a parking brake with an automatic transmission: 1. Stop the car. Do not remove your foot from the brake.2. Place the car in park.3. Put the parking brake on.4. Turn off the key.5. Take your foot off the brake. An automatic transmission has internal lugs that engage when the car is in par... |
How does a 100% satisfaction guarantee work? | Many companies have his, even if they don't explicitly say so. Take restaurants for example, if you're truely dissatisfied with your meal, the manager comp your bill. They will try to recoup some of that loss, either by offering instead of a full comp of your party, just the one meal . Or if the problem at hand really ... |
How are animals able to drink water from puddles from the road, dirty ponds, etc. etc. But if we were to do it, we'd fall terribly sick? | Exposure immunity. Animals don't have magical immune systems, they just get sick and get over it. And they almost all have parasites and worms. |
Why do babies survive injury so well? | Some are even just cartilage like the knee caps till they are older. They are made soft so they can grow and stretch and what not. Can't stretch hard things . Soft things are harder to break. Thats why babies are born with their heads in pieces so they can be squished to come out and to allow for growth. Also, children... |
Why doesn't reddit buy more infrastructure to deal with heavy traffic? Is crashing / failing regularly considered OK? | Because it only goes down sporadically. It's not like every other week the site goes down. Only specific bits of the site go down for very specific reasons . The majority of the time, reddit runs perfectly fine. It's a waste of money to budget year-round for resources based on peak demand. |
Why when I sleep in I don't get hungry for a couple hours after waking up, but when I wake up early for work I'm starving when I wake up? | This is a good question. Also curious why I'm this way but some people aren't hungry in the slightest when they wake up really early. My boyfriend doesn't want to touch food for the longest time if he's up early. |
ELI5:Why do Americans have to pay so much for what is considered poor or slow internet speeds, when in other countries their speeds are tremendously faster than in the U.S.? | The United States is huge. As big as the whole of Europe without including Alaska. There are many places that are sparsely populated that make laying infrastructure not profitable. Telecoms, or any business with shareholders, won't do anything that is unprofitable unless they are legislated to. As a result, there are p... |
Why are property taxes determined by the value of the property, rather than its size and its zoning? | Taxing based on quantity, not on worth, is usually only done if it's a punitive tax. For example tobacco and liquor usually have a flat tax, so that people couldn't just avoid the tax by making the product inexpensive - both could be produced for very low prices. Although these taxes raise a lot of money, they are just... |
Why does limescale build up faster on the hot water side of the tap? | i'd guess it's because the hot water has more energy, and so evaporates more quickly after it leaves the tap, leaving the residue behind? so the cold would just flow down with less evaporation occurring, but the hot water particles are closer to the amount of activation energy needed to evaporate off, as well as being ... |
How do American Internet Companies get away with basically being monopolies in an area? | Being a monopoly isn't illegal. Rather, certain practices that stifle the possibility of competition are illegal. For example, let's say I start building a new product, and nobody else is making it. I can't really be blamed if nobody else enters the market to compete with me. Similarly, Comcast, Time Warner, etc. can't... |
why do websites care how secure my password is? | To further it, it's not so much about your account as it is their website, domain and databases. I'm just getting in to hacking but from what I understand, once access is gained, dirty code can be inserted in to databases wreaking havoc on their site. Access to other members' personal information can also be obtained. ... |
What happened from the end of WWII to now that made China such a powerhouse for industry/production? | After World War II, China was in shambles. It stayed that way for almost the next thirty-five years because of policy set by Mao and the Chinese leadership at the time. As part of the Great Leap Forward, in an attempt to increase agricultural production and manufacturing, the government created mass communes of farmlan... |
Could we really build Star Wars sized space ships? | We don't have the *economic* capability right now; we probably do have the *technical* capability, however. With economics being the primary obstacle, things like [in-situ resource utilization] could overcome this. An example of this would be sending a small team to the moon to mine the regolith for iron, silicon, and ... |
For someone who doesn't understand music or music theory at all, what exactly is the big deal about "A Hard Day's Night"'s opening "chord"? | Also If anyone could care to: ELI5: what's a chord, a note and other such music things/terminologies?", 'A lot of really good explanations, but I also wanted to add that one of the issues is that chords have a particular role in chord progressions based on what they are. The V chord, which is based on the 5th note of t... |
how did the pokemon rescue team team games on the gameboy work with the rescue feature and no internet? | let's look at 1234567890 as an example. Lets say that 1234 means location in which you needed help was cave 1. but if the code read 1134, it was a whole different location, ala cave 2. lets say that 567 meant what kind of pokemon you had. Again, there was what 300+ pokemon in the 3rd gen? This gives you a certain index... |
Can you explain to a five year old how to use a credit card responsibly? | Don't buy something on a credit card unless you already have the money. Pay it off each month and don't keep a balance. If you do these two things then you'll never have to worry about getting into debt from credit cards.Always always pay the bill on time, never be late, and never pay the minimum. Treat it like a debit... |
How is lake Vostok in Antarctica, despite being under 4km (2.34 miles) of Ice, still liquid? | As was mentioned salt reduces the freezing point of water however Lake Vostok is a freshwater reservoir, but it's also important to note that ice is a good insulator and that there is immense pressure on the water . There are also most likely ocean vents that supply the area with energy and there is a large magnetic an... |
What is Flux Pinning and why does it happen? | Type I superconductors don't allow magnetic fields to enter, so when you place one above a magnet, it floats over it since it redirects the magnetic field around it. Below it, closer to the magnet, the field is so strong that the weight of the conductor is not enough to redirect it anymore so it rests on that field, it... |
What's happening when actors in movies and TV shows are snorting lines of cocaine? | It depends, most actors use vitamin B, but Gary Busey prefers the real deal. _URL_0_ Edit: can't spell", 'Back when I was about 10, it was the big thing to dare other kids to snort a Sherbert Fountain. It tingled like hell, made you sneeze white clouds and if you timed it right after snorting it, you could pinch your f... |
difference between "hard" and "soft" fat? | It is most likely the difference between visceral fat vs. subcutaneous fat. Visceral fat lies in between your internal organs while subcutaneous fat lies just under the skin. On your stomach, you will notice the difference between these two because your abdominal muscles are between the visceral fat and your skin, so i... |
Why mixing red and blue creates violet with shorter wave length than both while mixing red and yellow creates orange, which is something in between? | Mixing red and yellow light will not create an orange wavelenght. It will still be red and yellow light hitting your eye, it just doesn't know the difference. The most interesting effect this has is the illusion of pink. If you look at the visible light spectrum for a moment you'll realize that there is no pink wavelen... |
Why do most bottles and cans have a divot on the bottom of them? | The cans and bottles are small pressure vessels. The divot decreases the stress in that section of the bottle compared to a flat bottom. Stress causes material to fail. Cans and bottles are cylindrical for this reason as well. Its indented inward, for stability on a table. The divot is generally spherical since this is... |
Why does pulling a ribbon across the edge of a pair of scissors cause the ribbon to be curled? | When you bend the ribbon over the blade and pull the ribbon stretches more on the side away from the blade. It's being forced around a corner so one side has to be longer to accommodate it. Since one side is longer then it curls. |
Why do people always seem to slightly crouch when approaching a helicopter? | As far as movies go, it adds drama to the event with everyone crouching, it makes the helicopter the focus of the shot and makes it seem larger than it really is. And because: In real life it's because some helicopters have low ground clearance , so you stay low to not get an unwanted haircut.Also people crouch in wind... |
Why is cryopreservation thought to be unethical? | Because it's not been properly studied. Which means that we really have no concrete idea as to what to expect, how well it works if it works at all, and what the effects might be. Which means performing it on a patient is unethical. |
Why are people often exhausted after a long day in the sun? | They get dehydrated. When you're dehydrated your muscles start to hurt, you feel tired, and then later come headaches, dizziness, and nausea. |
Why do our noses clog up with snot/bogies when they are an essential airway? | I work in a very dusty/ dirty environment I often get snot and boogers that are blackened with the dust. I'm sure glad that stuff gets caught more in my nose rather than in my lungs. |
Why can a nicotine (and possibly other substances) addicted brain sleep without having to get a 'fix'? During the day it's a lot harder to 'stay clean' for 10 hours. | Cigarettes usually makes some people alert. When they wake in the middle of the night and smoke, they can't go to sleep right away. . Swaying aside, cannabis does allow some to sleep well without waking up at any given time. This is not necessary in all cannabinoids. |
This Common Core 2nd grade math problem | Common Core does not dictate teaching methods. Bad teachers will be bad teachers, no matter what curricula they use. I'm not in favor of universal standards for schools, but blaming Common Core for bad teachers is barking up the wrong tree. |
Why are human babies dependant on their parents for so much longer than other animals? | In addition to the large head/small birth canal reasons, humans are social animals that are able to care for their newborns so there isn't a lot of evolutionary pressure to have babies that are more ready to go. Having the baby earlier means other family members can help share the mother's burden, and allows the mother... |
How does BB-8 work? | Well BB-8 is fictional, obviously. I've seen teardowns of commercially available models, though, and they put heavy parts -- motors and batteries -- in the bottom of the sphere, so it doesn't need any active gyro stabilization to stand up. It may have it anyway, though. On the other hand, if you built one with the cent... |
How will they "clean up" after the Hawaii volcano? | With dynamite and jackhammers. For roads that have been destroyed by lava, it's now rock underneath. It's easier to just change the road so that it is now on top of the cooled lava rock, rather than excavating back to the original roadbed. For the houses they will mostly have all burnt up. They won't allow rebuilding i... |
How do gases like CO2 not just sit at the bottom of our lungs if CO2 is heavier than air? | Inhaling and exhaling is a much greater force than the weight of the co2. We probably couldn't breathe out an iron pellet, but the air is light enough for us to push in and out with no chance to sink anywhere |
How *old* is atheism? | The followers of Epicurus argued that gods either didn't exist or had zero interest in humanity / connection to mythology.Buddha more or less found the various beliefs , theist or not, unsatisfactory as they did not lead him to enlightenment. There are beings of higher and lower planes, but they are no wiser than us in... |
Why can Google go around taking photos of everyone's houses? | They are driving on public property while they take the pictures. As photography becomes more advanced, I'm guessing the laws on this will need to change because cameras will be able to see too well through the windows.Why can Google? Because anyone can. Anything you can see from a public space is fair game. If you are... |
How can people tell how many calories are in a food? | I'm an idiot so bear with me, but in a high school class we learned about this. It involves burning the food item in a sealed off chamber, and comparing the end result to the beginning. and you have to know how much heat energy it took and maybe how long to burn that item to its ashes. |
When I click something, does the click register as being ON a pixel, or on the point where 4 pixels intersect? | A mouse gives a position change amount, which the OS uses to determine where to display the mouse pointer. Usually if you click a button on the mouse the OS will tell the program underneath the the 'hotspot' of the pointer which point; in units of pixels; the hotspot was over when the mouse was clicked. The hotspot is ... |
With software, if a bug is discovered, an update can be issued to fix it. What if a bug is discovered in hardware - like an intel chip ? | Often times new software is used to work around hardware defects. I work in the automotive industry and we use software updates often to get around aging hardware components. An aging pump for example may draw more current than new. Some simple changes in parameters via software and you're good as new", '[That actually... |
Why are high school football teams and their players held in such high regard in the USA? | Hey OP, fellow European here. You need to consider that in the USA school sports is basically the *only* way to do sports. I'm not sure about how you guys do this, but here in Germany the majority of sport activities takes place in clubs that don't have anything to do with schools. So, your parents sign you up for a lo... |
How do scientists know what the core of our planet is comprised of without physical evidence. | There is some physical evidence with what spews out of volcanos. But a lot of it is based on theories and math. They know how dense the earth is by measuring it's size and how much gravity it has. From there they can mathmatically figure out what kinds of materials would exist at certain depths. But essentially they ca... |
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