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wouldn't it waste cost more resources to get to asteroids so you can mine them then what you would actually get from them. | It would probably be cost prohibitive for the first few trips out, but once the infrastructure was in place, it'd balance, then be worth it easily. Astronaut and engineer Buzz Aldrin, came up with a system he calls The Cycler, which was primarily designed for Mars Missions, but could easily be used for asteroid mining;... |
What is the difference between MSG manufactured as an additive and the chemicals that are responsible for naturally occurring "umami" taste? | MSG is just a pure, concentrated version of glutamate - sort of like how sugar is pure, concentrated "sweet". A slightly less processed, but still widely available additive is [nutritional yeast]. You can get a giant bag of it for a few dollars in the health food/bulk food section of most grocery stores. It's delicious... |
Why do humans need sleep? Why can't we just "get more energy" with more calories or stimulants? | No one knows exactly why we *need* to sleep, but there are a lot of theories about what is going on when we do. It appears to be very important for skill learning and storing things the long term memory, as well as allowing for the recovery processes like people have mentioned belowSleep is also the time when your body... |
Why does your part of your hand and forearm get numb and has a burning sensation after hitting your funny bone? | Hitting your "funny bone" actually means that you hit the [ulnar nerve] that happens to be exposed at the elbowThe ulnar nerve is one of the largest exposed nerves in the body and controls sensation in the pinky and half of the ring finger. So the next time you hit it, you can notice how the numbness and burn is mainly... |
why does cooking food at high temperatures kill dangerous bacteria but my stomach acid does not? | Various organisms have resistance to various conditions. Temperature and acid resistance are two examples, but they don't always go hand in hand. An organism can have extreme heat resistance but be susceptible to acid and vice versa. This is because heat and acid are different mechanisms Even though we associate words ... |
Why does stainless steel stain so easily? | What on earth are you putting on them to make them stain so often? My guess is you either bought cheap low grade stainless steel appliances or you are somehow damaging the stainless steel ', "Stainless refers to oxidation stains. Stainless steel is great because the steel does not react with oxygen, which is in the air... |
What's the difference between suffocating and choking? | Suffocating is not being able to breath due to not enough air in your vacinity, you could still breath if there was air. Chocking is something stops you breathing even though there is air available |
What causes the EMP when a nuclear warhead detonates? | EMP stands for electro-magnetic pulse, in this case [Nuclear EMP]. When the device detonates, the gamma radiation emitted runs into the gas in the atmosphere. It knocks off the electrons, in a phenomenon called the [Compton Effect]. All the electrons in the Compton current are moving very fast > 0.8C . As this current ... |
Why do people have different skin colors? | Simply put: Dark Skin protects you from UV light in areas that get direct sunlight like Africa Light Skin lets more UV light through. Human needs UV light to produce D-Vitamin so light skin is better for areas that don't get as much sunlight like Northern Europe. So your skin color is balancing between getting burnt in... |
can food run right through you?if so does it hurry the food in front of it or pass It by? | Yes food can run right through you, from both possible contexts of this question. An enraged steer can bulldoze you when it wants to. Happens to clumsy matadors all the time. But your more likely context is "can you digest foods faster than other foods". So I'll answer that one. Liquid-based foods such as sugar syrup o... |
What exactly is YMCA? | The YMCA the song refers to is indeed the Young Men's Christian Association. This organization was created to provide cheap housing in a safe, Christian environment in urban areas, as well as providing activities for the people staying there. And Victor Willis has said that it's about the YMCA and the fun to be had the... |
How do the image captcha work? | That's Google's No CAPTCHA you're seeing. Basically, Google use: - the data they know about you - [how you behave when solving the CAPTCHA] - [how you loaded the page] If their algorithm decides that you're a human, you just get the checkbox. Otherwise, you'll receive a challenge . Image recognition is a [difficult job... |
What is the difference between the National and American baseball league? | The biggest one is that in the NL, pitchers also have to show up in the batting order. As a rule, pitchers are very bad batters, almost always the worst on their team. In the AL, a special position - the "designated hitter" or "DH" - bats instead of the pitcher.They're separated to help organize the teams into a more o... |
why is eating late at night a factor in weight gain? | Because when was the last time you had a salad at midnight?', "For me, it's that I've probably already had 2400 calories in my other 3 meals at that point, and then I'm consuming 1100 more from a taco bell value meal after 800 calories of alcohol.Former fat guy here. I lost over 50 pounds through diet. The only thing t... |
What are the rights afforded to wounded enemy combatants? Is it legal to fire upon those attempting to help neutralized enemy fighters? | Wounded enemy combatants are to be healed the same way as friendly combatants once the danger is over. You cannot fire at ambulances, hospitals or medical personnel. But they have to be identified ) and carry no weapons. If they are not identified or if they carry weapons, they are no longer protected and are considere... |
Why neutron stars are so dense and hot? | Gravity, basically after a supernova what is left collapses so dramatically that all the matter gets squished together when everything is pushed together it then generates an enormous amount of heat. |
Why does food sometimes pop in the microwave as if it was very hot, but still come out cold? | It's just the water evaporating because of the microwaves. It works by heating the water inside the food. |
How does being "gender neutral" work in romance languages like Spanish, which bases almost all communication on gender? | Not sure about Spanish, but I translate into Russian, which does have gendered nouns. The answer is: it works very badly and awkwardly. Languages with gendered nouns do usually have a "neuter" option in addition to masculine and feminine , but it certainly has connotations that often make it inappropriate for use in a ... |
Why parts of the borders between the countries in African continents are just straight lines while it is not the case in other continents? | Many of these countries were created fairly recently by colonial powers who did not care much about local traditions. They just drew the borders where it was easy for them. In older countries, the borders are usually set by centuries of cultural tradition and geographic features. You see the same thing in North America... |
How come school buses don't have seatbelts? | It has been studied, many times, and it has been decided that the no-seatbelt plan is the best one for a few reasons; some of them are: Because the children are unsupervised most wouldn't use them anyways Due to large size variations in children they could use them incorrectly which can cause additional injury. School ... |
why do some people who's parents are immigrants have an accent while others don't ? | Accents tend to come more from peers than parents. So someone who grew up in an area where all the friends and neighbors share the same accent, or perhaps went to a private or parochial school where that was the case, will more likely have a similar accent. But when children go to assimilated schools, especially at the... |
Why do video game adaptation movies always end up being huge blockbuster movie failures? | Because the stories in video games do not make for good three act narratives and they are not nearly as compelling as when you are playing them. People who don't play the game don't care about the story so the name gives them no affection for the property. And people who do like the games don't see the appeal in going ... |
Why do some foods, like corn, not digest? | We can't digest cellulose. If we chew up a plant pretty good, we can get all the goodies out of it. But the outer shell of the corn kernel will just pass through us . |
What are the technical and physical limitations preventing the use of large scale carbon scrubbers to reduce CO2 in the atmosphere to fight climate change? | Short answer: it's expensive. Long answer: according to [this] article), the cost of CO2 scrubbers would add 2-4 cents onto your electric bill per kWh. That translates into double the amount of electric bill that people already pay. Plus this doesn't take into account that these methods are fairly ineffective for vehic... |
How do scientists manage to inject things and manipulate the DNA in something as small as a bacteria? | There are a bunch of ways. One way is through plasmids and restriction enzymes: Restriction enzymes can be used to cut DNA at specific sequences, but you'll need to find a site that matches an enzyme you have or is at least close to it. Plasmids of a sequence you wish to insert can be made and cut open with the same en... |
Why after using power tools or machinery, your hands 'buzz' for some time afterwards. | I'd say it is because of the vibrations that our hands go through. Our hands become used to those vibrations and even after they're gone, it feels like its there because our brain tricks us into thinking so. Not sure though. |
How are animals trained to sniff out drugs? | Basically the same way they are taught to sit or roll over Dogs have an incredible sense of smell - the dogs that are selected to become sniffer dogs are selected as ones that show both a strong talent and desire for that sort of work. From that it's just a case of just repeating a series of tasks and rewarding them wh... |
How do nasal congestion drops work? | Nasal drops contain the active ingredient Xylometazoline. Basically, the drug restricts blood vessels in the nose . This reduces blood flow to the linings of the nose and sinus which reduces swelling and therefore the feeling of congestion. It also slows mucus production which relieves the feeling of a blocked nose. Ho... |
Why do bags of chips only ever come half full? | Because if they were completely full you 'd end up with a bag full of flavoured dust by the time it got to the shelves. The air in the packaging serves to cushion the contents by giving it some "wiggle room".It's not air, it's usually Nitrogen. The gas acts as a cushion so the chips aren't pulverized in transit. Using ... |
Why don't hospitals have security guards? | Most hospitals I have been to *do* have a security guard in the ER waiting room. As for the rest of the hospital, it's not really something that's needed, unless you find yourself in a movie. |
Can Planned Parenthood survive without federal funding? | Sure, but those people who get birth control and sexually transmitted infection treatment from PP will have to seek treatment elsewhere, probably paying more money. Defunding PP is all about hurting the poor if they choose to have sex, not about the salaciously edited covert video. |
How well would modern armour fair against more primitive weapons? | [Here is a video] showing an arrow vs a bullet resistant vest. The arrow penetrates the vest but not enough to kill the wearer; a more powerful bow or crossbow could probably penetrate enough to cause serious damage. Bullet resistant vests are designed around spreading an impact out across the large area to dissipate t... |
How does this game .kkrieger work, exactly? It's 95 KB large and it looks better than some PS3 games | In very basic terms you have an asset, for example a cylinder, that you have stored. Now instead of storing all the necessary versions of the cylinder you just manipulate this one cylinder via the game code to show up in other forms you might need for the in-game world. Thus the long loading time since the game is esse... |
Why do you feel tired when you oversleep? | During periods of rest the brain passes through it's various states of sleep, I am not aware of the specific stages but you essentially alternate approximately every 90 minutes between deep and light sleep. If you either oversleep or are woken abruptly rather than awaking naturally then you may not be at your most opti... |
[Meta] The types of questions that should be asked on r/ELI5 | Didnt this just get discussed? Not to mention that the posts have been significantly more applicable since the [other] meta post', "As much as I don't like subreddit rules, this one makes sense. Thanks.Also, I think the lack of ability to do some simple research or just use the search function is very annoying. Yesterd... |
Why is porn banned in India? | Other answers notwithstanding, from what I 've read it seems porn has been banned because certain activists have taken it upon themselves to stop the "exploitation" of individuals involved in pornography, particularly children and other women. They asked the Supreme Court of India if the Court could ban porn, and the C... |
How would the world be different environmentally if the world was flat? | while obviously lots of things would be different, I think the most obvious one would be gravity: if you're in the middle of the disk you would be slightly heavier than near the borders. Also: on the borders gravity wouldn't only pull you down to the ground but but also towards the center of the disk. but such a shape ... |
Are bitter foods necessarily saltier than non bitter foods? So say if, I drink black coffee would it be more dehydrating than drinking the same coffee but with a little bit of sugar? | No. Dehydration comes from your body losing water. Salt actual helps with hydration. The reason salt water, like sea water, dehydrates you is because your body processes out excess salt by using water from your blood. Salt is essential to good hydration. Even coffee has shown that drinking it won't dehydrate you as the... |
How air brakes (like on big rigs) work | Air brakes use either discs or drums just like on a car, the main difference is that instead of using hydraulic fluid pushed into a piston to press the bad against the drums or discs, they use air pressure in a diaphragm to engage and release. Air brake systems are used on "big rigs" and trains because it is much easie... |
What is the Iran Deal and what is its purpose? | We have been keeping the scissors away from Timmy during art class. He has been pretty good at school lately and could really use the scissors so we'll let him use the safety scissors, but under close watch. This way Timmy can participate more like a normal kid and we can keep an eye on him. |
Why do so many English and Massachusetts town and city names end is -sex | -sex means "Saxon". So Essex would be "East Saxon", etc. -chester and -cester comes from the Roman *castrum*, meaning a military camp or fort. -bury is from -berg which refers to a hill or mountain. -ton comes from "town". "Nortons" means "North Town |
Why does the government leave potholes on public roads unfilled for weeks or even months, making driving conditions hazardous? | Many reasons. Could be a lack of resources. Potholes in my town have sometimes gone unfilled for years because the city just doesn't have the money to fix all of them. Another reason is weather. There's very little sense in filling potholes in winter.Right now in many parts, this is prime pothole season. The combinatio... |
What's so bad about CNN? | CNN has been known to run stories that are either biased, misconstrued, over or under exaggerated, or sometimes completely false. Here are some notorious examples from its TV career: -It has been known to cast a negative light on Republicans, with 75% of them targeted at making them seem like the "bad guys" -Ovctaiva N... |
How and why do certain movies look very clean and clear, to the point where you can even see the subtle textures on skin? | It's usually more the filming technique than the technology. Digital cameras have been able to produce the same sharpness and resolution as film for quite a while now. * A film with a lot of tight, close-up shots is going to look sharper. Wide-angle lenses provide a lower effective resolution and have more aberrations,... |
how do people determine that certain animals can only see certain colors or just black and white? | You have two options, you can either experiment on a living animal, or you can dissect it's eyes. Experiments can be devised to test animals by exposing them to different colors and seeing if the can tell the difference. Dissection can be used to determine the make-up of the animal's retina, in order to determine its o... |
timeshares? something for rich people or something ? | Condos in places like ski resorts and vacation resorts are ridiculously expensive. So, instead of buying a condo, you buy a small share of it, usually 1/26th or 1/52nd. This gives you the right to stay there 1 or 2 weeks per year. While there's nothing wrong with that concept, the problem is the timeshare industry is r... |
Why aren't the barrels of guns aligned so that the recoil doesn't exert rotational torque about the grip where the person holds the gun? | A [Chiappa Rhino] fires from the bottom cylinder to reduce that torque. I have one. They work very nicely. I can fire .357 Magnum all day without my wrist hurting. The .357 rounds feel like .38SP and .38 rounds feel like .22.I believe OP was questioning why the barrels arn't positioned below the grip, or lower. The bes... |
How to complete W2 to get a tax refund | If you want them to take out more taxes claim 0 exemptions on your w-4. You will owe the same amount either way, however, so you're best off just paying in what you will owe in the end. |
What exactly happens when someone donates their body to science? | Read the book "Stiff". A lot of things can happen to you once donated. Medical schools, crash test dummies, even rotting for research. Bodies are left to rot to test how they react and help police determine cause and time of death. You normally can't choose where your body goes though From what I know about the cadaver... |
How is it possible that if I take out my internet cable for a few sec and then plug it in again that I just keep having my internet like nothing happend? | The Internet is not reliable- data gets lost all the time. Most programs that run on the Internet are designed to handle stuff not going through or stuff going through more slowly. As long as the interruption is only for a short amount of time, it will be able to recover.You do get disconnected, but the connection will... |
How do holograms appear closer to the viewer? | Your eyes can‘t see distance. Instead both of your eyes see slightly different views of the world in front of you. The more those views differ the closer your brain thinks an object is. That‘s what you perceive as distance. Holograms like the one you described use optical effects to show a slightly different image depe... |
How do singers from bands like Shinedown not ruin their voices, while singers from other bands like Metallica go on to lose theirs. What makes the difference? | It depends on the person and technique With the right signing technique and training, many singers can sing harsh or extremely harsh for decades In the case of James Hetfield, he had no prior singing experience and his Justice era singing was very risky from a singers point of view, IIRC; it's a miracle he didnt blow o... |
Labor Unions, how do they work, what are the laws surrounding them, etc.? | Neighbor across the street: "Hey Tommy, will you mow my lawn?" Tommy: "Sure, I'll do it for $5/hr." Neighbor: "How about $3?" Tommy: "I want $5." Neighbor: "OK, well I'll just ask your brother." Tommy: "My brother and I and all the neighborhood kids decided together that we weren't going to mow lawns for less than $5/h... |
Why do brain freezes occur? | When the roof of your mouth rapidly cools, and then warms again. Typically the colder the thing you're eating/drinking vs the warmer the temperature is around you makes them worse. Basically cooling your sinuses rapidly slows the blood flow, then when it warms up again seconds later blood flows pretty "quickly" for tha... |
How companies preserve milk? | 1. Pasteurize it so that there's absolutely no bacteria levels in the milk. This is called UHT processing, and involves heating the milk so hot that bacteria simply can't live in it. 2. Remove all the air from the carton: any bacteria left needs air to reproduce, so they will be dormant rather than "eating" the sugars ... |
Why are ads that are fake download buttons allowed on sites like ad.fly? | Because they don't care about cybersecurity. They only want the ad revenue. And because they get more from the advertisers when people click on the ad, they are okay with ads that fraudulently entice you to click. |
What is actually happening in your body that causes you to occasionally get a head rush when you stand up? | This mostly has to do with blood pressure. If your blood pressure is too low, when you stand up, it gets even lower and you feel this "head rush" because the amount of blood and oxygen to your brain drops precipitously.You've got to keep two things in mind about 'headrushes': this is a phenomenon in which due to a sudd... |
How do microwave ovens generate microwaves? | [This guys] has amazing videos and [here] is his explanation which I find to be exactly what you're looking for. |
Why do things taste different when I'm sick? | No sense of smell cause you're all stuffed up. Foods have an aroma that is often attributed to taste. Same principal applies when you kiss someone you love. You like their smell", 'The tastebuds do an angry. Actually it has to do with your sense of smell being impaired by mucous buildup and clogged sinuses. |
Why do humans have sense of humor? | The best theory that I've seen is that humor is an absurdity detector. When confronted with a situation that doesn't make sense we have a bit of circuitry in our brain that detects it and that is what we call humor. One could think of a situation where detecting an absurd situation might be an evolutionary advantage. A... |
Why does the speed limit almost always end with a five? | In Australia with the metric system and kilometers, it always ends in a Zero . That doesn't answer your question but now you know :) |
Are most aspects of grammar punctuation universal for all languages? | As far as I'm aware, they didn't used to be, but because computers are such a big part of life today and all keyboards have the Roman alphabet, punctuation has been adopted by almost all languages typeable on a computer. Latin didn't used to have punctuation, and most languages didn't. It was developed to help people r... |
How is it possible for two forks to balance on a toothpick??? | Often, the weirdly balanced objects that seem to defy common sense have their mass distributed so that the centre of mass is below the point where the object is supported. When this occurs, the physics is similar to a pendulum and the object is in stable equilibrium. When the object is moved slightly, instead of the ce... |
Why do dogs go apeshit when they encounter a significant human that they haven't seen in a while? | Just like humans get excited when they meet an old friend that they haven't seen for a while, dogs also get excited when they are reunited with a human they're close to. Running around and going crazy is just how some of them express that excitement.Dogs are, by nature social/pack animals, and when they see a member of... |
Why do some YouTube videos show a small image of that point in the video when you hover over the progress bar and some don't? | Typically it's newer videos that haven't had time to finish being cached on Google's servers. After the video has finished processing completely, one of the benefits is being able to see that image. |
Why do differently sized guitars produce the same range? | The sound made by a stringed instrument is dependent on a number of factors. String length, string weight and string tension all impact the frequency of the note produced. You can change one but keep the same note by changing one or both of the others. |
How is it people can jab themselves in the thigh without finding a vein? Wouldn't there just be muscle and nothing to inject to? | Some medications, vaccines, etc are meant to be injected intramuscularly. Your muscles have tons of blood vessels that can get the medication into your blood stream. _URL_0_ |
What would happen in the USA if someone tore a ligament (such as ACL) and didn't have health insurance? | You would have to pay out of pocket. Usually if you don't have insurance, you may be able to negotiate the costs with hospital to lower the amount due. Generally, hospitals will charge more for procedures and hospital stays if a patient's insurance company is being billed. Hospitals will never receive the full amount t... |
Laser pointers for cats = good / laser pointers for dogs = bad. What is the difference? | It is a psychological thing. Cats are used to playing catch, they are ok with never catching it. Dogs in other hand have intense instincts about the hunt, and it might me stressful for them when they chase something and never catch itPlaying with laser pointers is frustrating for both dogs and cats because they can nev... |
Why do companies prefer the "Buy one get one free" method over the "50% off" method? | /u/moops79 and /u/coliecam both got two pieces, and there's a third and fourth. In BOGOF, you aren't seen as reducing the price and reflecting on the product's value. On the other hand, when you offer a 50% discount, it's interpreted as the product was horribly overpriced to begin with and your store is making a killin... |
Why are there so many ladybugs in my house when spring comes around? And how did they get inside? | They usually come in to the house in the fall, when it starts to get cold outside, and lay dormant in the house over the winter. You start to see a lot of them in the spring as the warmer weather wakes them up and they look to get outsideThe only answer I have ends with the ladybug apocalypse. |
Why is 'X' shorthand for Christ? (As in Xmas = Christmas). | X stands for the Greek letter [Chi] which is the first letter in the Greek spelling of Christ . It's just an abbreviation.Χριστός is Christ in Greek. The short hand is the Greek letter "X" and not an English X.ELI5 is for requesting simplified explanations of concepts that are too complex for you to understand otherwis... |
Why are the consequences for not signing up for the draft so severe? | Because if the poor people didn't sign up then the rich would have to fight their own wars.Signing up for the draft makes you eligible for a process that could end in your violent death. So some people are pretty motivated to avoid it. |
Why does the design on a shirt usually not flow smoothly into the sleeves? | Sleeves are made from other pieces of fabric. You can see the seam where they were sewn on. This is because most fabric comes in sheets and not in the shape of a shirt, so the shirt shape comes from the tailor sewing these sheets together. They don't bother trying to make the patterns line up perfectly. |
After a long time of no use why does it take multiple pumps for anything to come out of a spray bottle? | Spray bottles have a pump at the top and a tube that extends to the bottom of the bottle. When you press the handle, the pump creates a vacuum that, after enough presses, sucks liquid to the top and eventually out the nozzle. In theory, the pump should be completely airtight, which would mean that when you're not using... |
How many different health care systems are there in the world? What are the advatages and disadvantages of different health care systems? | It depends on what exactly you mean by "different healthcare system." No two countries are the same, although there's similarities to be found. Broadly, there's three variations: private health care and private insurance, private health care and public insurance, and fully public health care. The United States mainly r... |
Why whenever i eat fruits i still feel hungry, but eat fatty foods and feel full. | According to [this article]: "When the fat remains stable in the acid environment of the stomach, it empties into the small intestine more slowly and increases satiety." However, for a more ELI5 version: Think of your stomach as a bonfire. When you put in a piece of paper it burns it very quickly and it provides relati... |
Why do we hear one voice when we speak and a completely different voice when we listen to a recording of ourselves? | Our ears pick up the vibrations from our vocal chords, something that only you can detect. These vibrations plus what you hear coming from your mouth are different than what others hear when you talkWhen you speak you are mostly hearing the soundwaves through the inside of your head, as opposed to the sound travelling ... |
ELI5: What is the difference between a medically induced coma and being put under with anesthesia? | Doctor here. They aren't really different. A lot of the drugs we give are the same. These include things like propofol and versed . They are both sedatives and put you to sleep. We might give you a paralytic during surgery so that your muscles are relaxed and it is easier to do the operation. During both anesthesia and... |
How are production credits assigned in movies? | I work in Hollywood and basically it's all about money and politics. Agents work really hard to get their clients in a certain place in the credit sequence - and it is written into their contracts. Name placement for above-the-line talent is also negotiated. The rest of the crew usually just takes whatever position the... |
Why are 'Lets Play' series so popular? | By the same token, isn't it more fun to play football yourself? Sure, playing football. But sometimes it can be relaxing and interesting to watch it done by others, while listening to experts discuss the strategies and provide colorful commentary about the game. Or even just to have it on in the background while you're... |
how electron microscopes work? | Let's start with light microscopes. You shine light on your sample, and the light bounces through a couple of lenses and hits your eye. The concept is exactly the same for electron microscopes, but the difference is that you're using electrons instead of light. Due to wave-particle duality ), electrons have qualities l... |
What is time, and has it always existed? | Time is what differentiates events occurring a the _same point in space_. It's the fourth dimension of spacetime - the other three being the three spatial dimensions you know. To ask if time "has always existed" is not too meaningful, since to determine if something has always existed, one must use the concept of time.... |
If inflammation is a healing process, why are we always told to ice and elevate injuries? | The body a lot of times over exaggerates causing more inflammation that it actually needs. Icing and elevating the injuries reduce pain.My understanding is basically that the body simply reacts. It doesn't adjust it's reactions. So some swelling is good but it has no way to regulate and make sure that it is the right a... |
What makes a director so important in film and why do they get paid so much? | they direct the movie. They are the leading person who says how things are structured, how the actors move and behave, the lighting and the camera position..pretty much all of the most important aspects of a movie, along with all of the things that separate a good movie from a great oneWikipedia gives a good summary: "... |
why aren't most American cities building skyscrapers as tall as the ones in Asia and the Middle East? | Because skyscrapers aren't cost effective. The huge ones being a built in the middle east and Asia are more about prestige and image than building cost effective office space. America got over that during the boom periods and now any offices that are being built there tend to be placed in intercity areas. |
Instead of processed foods (e.g. boxed cereal, hamburger helper) why aren't whole foods given to the poor more often? | Many food banks do give out food staples such as rice, flour, oil etc. Also, food banks rely almost exclusively on donations of food by manufacturers, distributors, grocers, as well as commodity foods provided by the USDA. If a food bank is giving out hamburger helper, it's likely because General Mills donated it. Addi... |
Why are we not putting more resources towards converting salt water to drinking water? | It is VERY energy intensive and expensive to do. Not to say it isn't being done, San Diego spent millions to make a plant just for that very thing, but it isn't anywhere near as easy to do on a scale that is viable as most people believe. |
Why is a Root Canal preferable over say an extraction/implant? | A root canal will remove the soft pulp and nerves from the inside of the tooth. It leaves in place the roots of the tooth, which usually have an effective connection into the upper or lower jaw. Filling in the void and crowning it is less invasive. An implant involves pulling the tooth. Then you have to deal with the v... |
What do firefighters do that makes them so ripped? | It's a demanding job so they'll often hire very physically fit people to do it. That being said it's a stereotype that is not always accurate. Seen some fat fire fighters in my hometown.They have physical fitness requirements for the job. So they have to meet certain time for running/climbing around buildings and such ... |
what causes random itches? | Random stuff. Dirt, bug bites, weird nerve or skin stuff like growing or healing, hairs touching stuff or blowing in air currents, terrible diseases you don't realise you have. Could be anything really |
Why does Venus always seem neglected in terms of research and exploration? | venus is mostly a volcanic planet. anything living on venus would most likely not be carbon based. as the average temperature is 460 degrees Celsius year round in all areas. for mars, −127 to 40 °C. there is nothing currently out there that can withstand that extreme heat for an long period of time. it is also a lot ea... |
Why are coins in the U.S. not sized according to their values? | Because their values used to be based on their metal content. Quarters and dimes were silver, nickels were nickel, and pennies were copper. That became too expensive, so all the silver-colored coins were switched to copper-nickel and the penny was changed to zinc, but they kept the old sizes so the new coins would look... |
what happens when you get 'the air knocked out' of you? | When you exhale all of the air in your lungs some stays in to make it easier to inhale again. When you get winded that last bit of air has been pushed out and the air sacs collapse and it's much harder to pop them open. It's like when you blow up a balloon, you have to blow the hardest right at the beginning and then i... |
Why do some smaller foods have larger calorie count that some bigger foods? and how do they actually count calories in food? | Because the density of energy in the substance is different. This is like why the energy in a tank of gasoline is far greater than the energy in an equivalent sized piece of granite. A "calorie" is the measure of energy contained in a substance. A calorie is a measurement that an amount of food can heat water The scien... |
What is the difference between a mood and an emotion? | Well we know what emotions are right? Happy, sad, angry, playful, etc. A mood is basically a state of being predisposed towards a certain emotion. In a "bad mood" would mean temporarily predisposed towards feeling emotions generally considered bad, such as angry or sad. What causes the predisposition is a combination o... |
How does a search engine work? | Google has automated scripts that to out onto the internet and index the websites. Those are called bots or crawlers or spiders. Once they save it into their database, it's just like searching for files on your computer. You search, it finds it, then you open the link. That's a really dumbed down version of what happen... |
Emission and Absorption Spectra: | The first thing you have to know is that light has energy, and that it can give that energy to other things that it runs into. Different atoms, however can only exist at specific energy levels. Picture it like a ladder. You can climb a ladder by taking a step up to the next rung, but you can't put your feet in between ... |
What would happen if the US left middle eastern countries in solitarily? | Keep in mind that those borders were hastily drawn in the 20th century after the chaotic collapse of the Ottoman empire and subsequent upheaval during WWII. The nations that exist in the middle east are drawn along arbitrary lines, not historic ethnic and religious lines. This has led to a lot of violence in the region... |
Why don't we just expand Medicare to cover everyone? | > Why don't we just expand Medicare to cover everyone? This would generally be called a "single payer system". There was just barely enough support in congress to pass the ACA . There just wouldn't be enough support to put something like this in place, since plenty of democrats in congress would oppose it as well.You'r... |
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