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Why does blowing my nose not make me less stuffed up? | You've shoved all the kids out of the bouncy castle, but the castle is still over-inflated so it's difficult for you to get through. Sicknesses often swell your sinuses in addition to causing more mucus production. Getting rid of the mucus helps but your airways are still narrowed due to the swelling. |
When a company buys another company for money (like Disney buying Fox), where does that money actually go to? Who is the company bought from? | It goes to the previous owner. Like if you went to someone's house to buy a used car. You give them money, they give you the car. |
Is there any scientific basis for horoscopes? | Only in the sense that there are constellations in the sky. Those exist, although they're more folklore than science. The actual horoscopes themselves are not based in science. |
Why are we are all bothered by disclosure of App permissions on mobile phones but not by softwares on Windows by developors? | I disagree with the other people here. It's two things: inertia, and money. Computers started completely unrestricted. Any app could delete everything you had, if it wanted to. But in the beginning, there was little benefit to doing that in a piece of useful software. There was no internet, a lot of stuff spread by wor... |
Why do most public bathroom stall doors have cracks that people can see through and walls and the doors that don't go all the way to the ground? | It's a lot easier to clean a crack than a corner. With a cleaning tool, you can wipe both sides of a crack and be pretty effective, getting into corners is hard. Fitting tight against the floor requires precision. Large hinges and sturdy frames are necessary. Plus, teenagers that hang their 20kg book bag on the coathoo... |
How was the exact value of pi ever determined? | Here's an example: You can prove, that the sum of the reciprocal of all square numbers equals pi^2 / 6. So you take 1 + 1/4 + 1/9 + 1/16 + 1/25 + 1/36 + until you get to square numbers with 9 digits or so. Then you take your sum times 6. Then you take the square root of it . There you go, you have an approximation of P... |
If we can’t see atoms, electrons, quarks... How did we knew that matter is composed by those things and what it seemed like ? | The atomic model developed over time based on results from various experiments. The first model was developed after the discovery of the electron and was very bad. It's often called the plumb pudding model and basically it was that atoms were made of some sort of positively charged blobby substance with electrons embed... |
Why can’t we see/feel the earth spinning? Is anything effected that we don’t easily notice? | The atmosphere is also spinning along with the rest of the earth. We don't typically feel velocity. We only feel acceleration. The earth isn't perceptibly speeding up or slowing down so we don't feel it. Just like you don't feel like you are moving when you are in a train or car, until it starts to speed up or slow dow... |
How come some images can take like 10 seconds to load but videos load fine? | Videos are generally far more compressed than images. It's not uncommon to have a 1 MB image. If video was encoded like that, it'd be 30 MB per second. Also, in general on the internet you're streaming video. It's being displayed as it's being downloaded. It's possible to make progressive JPEGs which gradually gain in ... |
Why are we typically so aggravated by those slightly less intelligent than us, yet compassionate to those much less so? | I can't offer anything scientific, being of the lesser intelligent subset. But I imagine we are frustrated with ingnorance in peers because they have usually had the opportunity to learn what we have in these instances and should be able to articulate their knowledge. It's not expected of children or those with learnin... |
Why does breathing become more difficult once we start focusing on breathing? | Breathing is an involuntary action. The part of your brain that deals with it just gets on with it in the background without bothering you. It also happens to be an action that you can consciously control if you want to. In that case a different part of your brain takes over but that part of your brain isn't as special... |
Why are humans more susceptible to sickness than our pets? | My guess would be exposure. Your pets aren't exposed to other animals as we are in school, work, public, etc.You meet more members of your species in a day than your dog will meet in its life. That provides far more chances for pathogens to spread, and encourages them to evolve efficient means of airborne transmissionI... |
What is a codependent relationship? | Co-dependency often comes about when one partner performs the role of caretaker and the other the dependent. The caretaker will subvert their own needs or desires in hopes of receiving affection and care from a difficult person. Here are some common signs: * Are you unable to find satisfaction in your life outside of a... |
If molecules are packed more tightly together in solids than in liquids, why is it that solids can be compressed and liquids cannot? | The molecules of a solid are put together so they cant move around very much, which liquids can move freely. Picture if you will 50 people in a room, tied together wrist to wrist in one massive group. Now get a big strong person or maybe a slow moving truck and force them to squish together. It's easy because they have... |
How do barcode scanners display the correct barcode number even when the barcode is upside down? | The barcode is split down the middle, and each half uses a different encoding for the digits. So if the computer sees the left side codes on the right and vice versa, it knows it's upside down and reverses the binary code.Like hieroglyphs, barcodes usually contain one or more symbols that indicates reading direction. |
How are hand sanitizers still effective? | It be like a village getting destroyed every hundred years by lava. at no point will any of the survivors actually get resistant to lava. The 99.99% is mostly to cover themselves, and for any bacteria that don't come in contact with the cleaning agent. |
What is the purpose of the mats/pads you see covering the grille on some diesel vehicles? | Yep, it's about heat. You'll see it a lot in colder states, and you'll often see pickups and cars with them in really cold places. I grew up in Alaska and used to commute for college between Fairbanks and Haines in my little Honda Civic. During the winter, I'd need to put cardboard in front of the radiator to allow the... |
. Why does laying down/closing your eyes when you’re drunk make the room spin? | Because alcohol is less dense than water. When it starts to seep into your inner ear, where your balance sensors are, the density variations cause movement of the fluid which is interpreted as rotation by your brain. So, somewhat surprisingly, the spins aren't caused by alcohol acting on your nervous system. |
Why can’t we die just by holding our breath ? | > \tDoes our brain have a survival mode that just forces us to live ? Our bodies reflexively breathe on their own such as when we aren't paying attention or when we sleep. If they didn't then life would be a very difficult task. |
Why don’t we wake ourselves up when we snore? | There was a similar thread recently about why the car stopping will wake you up while the other noises/movement while the car is moving doesn't. it is because your brain is very good at filtering out the normal especially rhythmic things while you sleep. Your brain knows when you are going to snore. It doesn't know whe... |
why is it that the 2$ bill is so rare, and why don’t more people use it more? | The number of $5 and $2 in circulation is about the same. no body holds onto to $5 so they move and you see them often but less than others. $2 Bill's on the other hand are seen as unique so people keep them and they never move in circulation so you never see them so they seem more rare and so on.I ask for them at the ... |
why cigarettes calm people down when nicotine is a stimulant, not a depressant? | There's nicotine reseptors in your brain, let's call them locks. Nicotine is a key to open those locks. When they're opened, the brain releases a chemical called dopamine which calms you and gives slight pleasure. & #x200B; Nicotine has no similar effect if you are not an addict. |
How do city buses get their route numbers? | It's largely arbitrary. Sometimes if a route travels along a numbered road, it might be given that route number. Sometimes a route number may be assigned as a tribute to a similar route on a previous bus/streetcar system, or sometimes it's just assigned with little reasoning. |
Are we ABSOLUTELY sure or PRETTY sure that nothing can outspeed light? | The characteristics of photons that allow them to move at the speed they move at is that they don't have mass. If any other particle also has no mass, it will move at the exact same speed as photons but they can't move faster. As soon as any mass is introduced, a particle can no longer move as fast as the photon. The p... |
If global see levels rise, why can't we drain the "extra" water into the Sahara desert to make it go down to normal levels? | First of all, the Sahara Desert isn't an empty swimming pool made to be filled with water. Most of the Sahara desert is actually well *above* sea level, so you'd have to build a solid wall tens of thousands of kilometers long around the entire desert to keep the water from immediately just flowing downhill as if you'd ... |
Is a strawberry that is less sweet healthier than a strawberry that is sweet because of the sugar content? | If you're trying to reduce your sugar intake, then yes.Pretty sure that the sugars are already in there just as starches and that the ripening process converts those starches to sugar. Problem is that you body breaks down those starches into sugars just fine. So you are still getting all the downsides of sugar just not... |
Why does a weird feeling occur in our pubic area when we clean our belly button? | I don't experience this but it could be something to do with how your body formed. Like i have a spot on my right lower ribs that if I scratch it i feel it in my right arm. |
How does the American Court system work? | I can't really answer the overall question but usually the guilty will tell the lawyer because it's better if your lawyer knows all of the facts so they wouldn't be blindsided by anything in court. Also there is attorney, client privelage which means you can tell them anything. And the lawyer is getting paid anyway so ... |
how do scientist distinguish between correlation and causation on unethical studies? For example to determine the causation on cancerous substances when no ethnic commit would allow direct human trials | Usually correlation and causation are hard to distinguish from just correlation data. There are 3 main factors that I can come up with that can help someone decide if a correlation is also causation 1. Obviously there needs to be the temporal demand that effect comes after cause. Otherwise we often speak of 'reverse ca... |
How is data sent to one cell phone, not all cell phones connected to the same tower | It's more complicated than that, but you've got the right idea. It's not enough to just prefix each message with an ID tag and politely ask every other phone to ignore messages not meant for it: you've got to *stop* phones from eavesdropping on each other. And there's the problem of crosstalk: what if two phones try to... |
Why is it sometimes cold and sometimes warm at the same temperature? | It could also be something as simple as how much moving around you've been doing. If it's 67 degrees and you've been watching a movie or not really moving around for a while, you will feel much colder than if you had recently been doing something more active. It doesn't have to be vigorous exercise either - I'll someti... |
How can an Index Fund or ETF (e.g. S & P500) be more diversified than an individual stock when it really is just 'another' individual stock? | An ETF's price movement is determined by the 100's of input companies' stocks. If you hold Boeing shares and their stock drops 10% because of the recent controversy over the 737, you see a 10% decline in your holding. A ETF that holds less than 1% in Boeing would only see a minuscule impact by that, moving more in line... |
Why does storing pasta sauce in Tupperware completely destroy it? | Tomatoes are highly acidic, which damages the surface of plastic, making it more porous. Tomatoes contain lycopene, which is a very strong dye used in natural food coloring. Lycopene is able to easier and semi-permanently bond with the damaged, porous plastic. It discolors the plastic but shouldn't be too dangerous. It... |
Since photons have no mass, how would they be able to exert a force onto an object, like the proposed light sail? | Even though a photon has no mass, a photon does have momentum, which would be the thing exerting a force on an object like this. This is one of those fairly confusing things to understand, that yes despite not having mass, the photon does have energy and exert a force of momentum when it hits an object. It's sorta acti... |
If the organs still work after a vasectomy, where does the sperm go if it cant leave the body? Ive heard the body reabsorbs it. Is this true/ how does this work? | Generally speaking, the sperm remains in the epididymis and the part of the vas that they can access until it dies. After it dies, it is broken up and dealt with by the immune system. I'm not sure whether the components are recycled or excreted. As I recall, immune cells in the vas lining are designed to handle dead sp... |
How do zombie/survival movies like 28 days later make cities look so empty? | If I may ask a tangential question: How do the movie directors get the right to close off part of a city? The city is public space; it doesn't belong to them. |
Why is it difficult to see my phone screen outdoors, but perfectly clear indoors? | Humans perceive light on a logarithmic scale. This means that if the area around you gets twice as bright, you'll only see it as getting slightly brighter. If my understanding of this phenomenon is accurate, then the area around you would have to have ten times as much light just for you to think it's twice as bright a... |
Differences between liquid detergent with powder detergent? | Powders sometimes don't dissolve well, and can be noticeable on dark clothing washed in cold water. That said, they are more environmentally friendly than liquid because water is heavy, so costs more to ship. Edit: PS. Consider something like these: _URL_0_ They last for years and are completely biodegradable since the... |
why does an increase in an asset account consume cash? | I honestly have no idea what you're talking about but I'm assuming that an asset account records tangible assets - which means that, unless you receive them as a gift, they cost you money to acquire - either real money or time money. |
Why are photos taken by cell phones more grainy when the lighting isn't that good? | The sensors on your phone's camera is similar to a speaker. If the input is very low, the camera will turn up the gain to the sensor so it can see Easier. The by-product of this is that it introduces noise due to interference in the circuitry. Similarly to a speaker if you turn it way up with no music playing you hear ... |
When a phone has no signal, how can it still make an emergency call? | The indicator on your phone shows signal strength for the provider that you pay for. It does not show signal strength for other cell towers that you don't pay for. 911 calls are mandated to be connected even if they're not from a paying customer of the provider. |
How are panic attacks and anxiety attacks different? | Hello! I've been diagnosed with Generalized Anxiety Disorder and have bad both. In my experience, anxiety attacks build over time, sometimes mine come after a week of anxiety and stress that bursts like a bubble. Panic attacks, come in the moment, quickly, and without warning. |
Why do we have treatments like Frontline for dogs and cats, protecting them from ticks for a full month, but humans need to apply bug spray for each possible exposure? | They're two different approaches Bug spray is a *repellent* and is used to keep the ticks from jumping on you and feeding in the first place. If they don't bite you then there's no way for them to transfer any diseases they may carry Frontline is not a repellent, it kills the fleas and ticks in a relatively short time ... |
What happens to smoke when it spreads through the air? | Some will be deposited on the walls carpet and other locations but the rest becomes so mixed in with the rest of the air that you can't smell or see it. However if you let fresh air in the contrast in the new air is quite noticeable. |
why is it necessary to shoe and maintain shoeing horses, but wild ones are fine? | There is a lot of debate on if horses need shoes or not, so it's more of a maybe kind of issue. First wild & feral horses tend to live in arid climates, so their feet are not in moisture all the time like domesticated ones. Second because they walk on dry dirt, gravel and rocks, their hoof gets worn down. naturally. An... |
why do you get new allergies as an adult? | There are bunch of cells in your blood that recognises foreign antigens. These cells analyse this antigens and presents them to bunch of other cells that are responsible of you immune defence. Sometimes harmless antigens presented to lymphocyetes makes them over sensitized to that antigen and when you contact that same... |
How do trees function without brains? | How does your car know how to function without a brain? It doesn't need one because it has mechanisms that just do what they. turn the steering wheel and it turns a bunch of gears which turn the wheels. It doesn't need to make a bunch of caculations to do any of that. Plants are like that too. They don't do anything co... |
How do hatmakers turn cotton fabric into a semi-rigid, leather-like hat? | the cotton is not so much a fabric, but a compound in this case. cotton is from a plant that when it blooms, it creates a white, fluffy ball on top like [this]. & #x200B; instead of the cotton being woven, it's being felted . the felting is similar to wool felting , but with cotton it can take longer as the fibers of c... |
why we cry when feeling intense emotions | You're basically secreting hormones when you cry, and so you're getting a reduction in the hormone that is causing that pent up emotion. At least that's what I've read |
How are pictures of planets so focused and not blurred, when they move at a speed of several km/s? | 1. Distance. The planets are very far away, so they don't seem to be moving much from here.2. Equatorial telescope mounts. These compensate for the earth's rotation, helping to keep the telescope locked onto a distant object, like a planet, and allow a long esposure without blur. Most of the movement we can see from th... |
How haven’t the constellations changed in thousands of years? | they have! but in such small amounts that only give noticeable differences only after hundreds of years. The brightest star, we see with the naked eye in the night sky, Sirius, moves about the length of the moon in the sky southward every 2000 years. Why do they change so little is because its iver such large distances... |
Why is abstract art considered art? | i like art but i am not a very sophisticated man. in my humble normal eye, i too don't know why the art you've shown is worth millions. but for me, in my opinion, i think an abstract art should trigger the right emotion the painter wants to convey or if it triggers an emotion to a viewer, it means it's a great art. but... |
Why is it so satisfying to rub your eyes and why is it so difficult to stop? | I had it explained to me that it feels good because you're giving the soft tissue around the eye a massage. There are many very finely tuned muscles that operate the eye and eyelid as well as the soft tissue under the eye and around the brow. Just like any other area of our body, a massage brings in blood flow which gi... |
How does a running start help you jump higher than normal? | You build up kinetic energy by running. It's similar to why a car going at a faster speed when it hits a wall does more damage. You have more energy when moving faster. That energy enables the jump. |
why it is importent to not make someone vomit after they had swallow chemical product (such as soap for the floor) | Often, the chemicals can directly damage the tissue they're touching. Your esophagus is generally less tough than your stomach, so your stomach may be able to put up with it longer, but exposing your esophagus to it a second time can cause serious damage. Once it's in your stomach, doctors can do a few things. For some... |
Why is "proof" on alcoholic beverages twice the percentage of alcoholic content? Why not simply just label the percentage? | The problem isn't inaccurate old ass measuring methods but nations sticking to them. As a Swede many many other countries baffle me on the reg. |
that pain you get in your inner cheeks after you eat something sweet | I would love to know the answer to this! It happens to me all the time, usually only with super sour things though. Doesn't really happen with just sweets. They have to be tart/sour. It happens right at the base of my jaw where it connects to my neck - I'm assuming where your glands are. It feels like a tightening kind... |
What is the science behind shy bladders? | I'm not a 100% sure this is the reason, but in my medical education we learned that the bladder function is controlled by the parasympathetic nervous system, which means it activates when you are relaxed and safe. When you are stressed your body releases adrenaline, which is a direct antagonist to the parasympathetic r... |
What actually changes in your body when you build cardio endurance? | It's been a few years since I've studied this so correct me if I'm wrong. Strength based sports is a fast twitch movement whereas running a marathon is slow twitch . When a person runs a marathon they are using the fat stores to supply energy. As a by product of breaking down fat and carbs for energy, lactic acid is pr... |
Do Doctors really work "24 hour shifts" as is a whole day with only a few breaks, no sleep? If so, does this not make more susceptible to errors? | Yes and yes. I literally just completed a 24 hr shift and this is my post call day. Luckily, last night I was able to get 3 hours of sleep before an emergency rolled in. This is not always the case. Next month, I'll be taking 27 hours shifts every 3 days and almost certainly going to violate the 80 hr work week. Unfort... |
Why are there not parachutes for passengers on commercial flights? | Because they fly too high and go to fast. Parachutes would only be useful during a very narrow band just after takeoff and just before landing. They don't work when the plane is too low and they don't work when the plane is too high . Another thing is that a parachute requires training to use properly, something passen... |
Colour Blindness - is it possible that your perception of colour is based on what you were taught ? | Yes. A number of languages like Japanese, Korean, and Thai used the same word to refer to both blue and green: _URL_2_ If you don't have a word to distinguish the colors, it's difficult to communicate what you see. |
Why is it prudent to change your smoke detector batteries when the clocks change instead of when there's a low battery alarm? | It's just a simple, and well publicized, way to remember to change it. Depending on indicators or anything else is more prone to being forgotten. The cost is really minor, and while most people will never have one go off for a fire I'm pretty sure anyone who ever has will say it's money well spent. |
Does my car get better gas mileage on the first half tank than on the lot half tank, or does it just seem that way? And why? | It just seems that way. The engine uses the fuel it's going to use depending on your driving habits. The tank's geometry influences how the needle drops. My car stays above a half tank for quite a while, but the latter half drops like a rock. I check my economy at each fill up and still hang around 28mpg all the time. |
What are those crazy patterns I see in glass when wearing polarized sunglasses? | /u/no_step has it. Here's some more detail: Ordinarily, when light reflects off a shiny horizontal surface, it will be horizontally polarized. Your sunglasses are vertically polarized, so they will block the reflected light, so you'll see less glare. And here's where the glass comes in. When under stress, glass, plasti... |
the centre of the universe | You can certainly say that every part of the universe is where the Big Bang happened. It didn't explode outwards from a centre that has a particular location inside the universe. |
why do you pee on a jelly fish sting? What is the reason behind this/ would this actually work? | Don't do that. It's an urban legend popularised by a Friends episode but it's total BS. It won't help. |
Why are a lot of old games (Halo, WoW Classic, etc.) starting to re surge and be re released after 10+ years from when they were made? | It's easy money for game companies and the companies that own them to have them rerelease games with a few gimmicks added in order to make more money for other projects. Or just more money for money's sake. It's a way to prey on the nostalgia of past generations while attempting to get new generations hooked in attempt... |
why is it that we use petrol as fuel when alcohol is both cheaper and easier to produce? | There is much less energy per gallon in ethanol than gasoline. It's slightly cheaper, per gallon, and slightly more expensive, per mile. Ethanol is **not** easy to produce. Most ethanol is produced by converting **food** into fuel. People need food to eat to keep them alive, it's highly expensive, in terms of lost oppo... |
Why do butterflies and moths have such large wings relative to their body size compared to other insects? | Lets compare Butterflies and Dragonflies for a second. Butterflies use large gliding wings to stay aloof, holding them basically immobile most of the time. They feed on the nectar of flowers, which are basically immobile as well. Structurally, Butterfly wings and the muscles to control them are fairly simple. In terms ... |
Since the Earth has a magnetic field, would it be possible to create a flying machine by repelling against it? | No. Setting aside that it's not nearly strong enough, as others have explained, the Earth's magnetic field isn't oriented properly to provide for magnetic levitation anywhere except near the poles. The earth's magnetic field is oriented to the poles, so any magnet that tried to work with it would be able to repel or at... |
What does "breaking up a corporation" actually mean? | It depends on the specifics of the case. One option is to break a large corporation up into smaller, regional companies like you suggest. In addition, companies can be broken into smaller units based on the services/products that they offer. For example, Amazon has its retail service, but it also hosts a massive amount... |
How does the brain focus on one conscious thought that we are "thinking about" at any given time? | Filtering begins at the physiological level, you can only see a very small portion of the electromagnetic spectrum, smell certain smells, hear certain frequencies etc. Then your brain sorts out the parts of value to you. For instance say you're recalling a movie from your memory, you dont describe every detail of the c... |
Why can paying off your student loans hurt your credit score? It seems like it would be a good thing. | Paying off your student loans won't hurt your credit very much, and its not something you should worry about. if you are making a payment on time every month, that shows you are reliable. Once the loan is repaid, you are no longer making a monthly payment. You might have become unreliable. Maybe you lost your job. Its ... |
When it comes to music(guitar) what are tabs and why are the looked down upon as a reference? | Id like to add to this story that a big difference between tabs and standard musical notation is that guitars have mulitple ways of playing the same note in the same octave because of the number of strings. In fact, on a 24 fret guitar the high e occurs on every string. Standard musical notation won't tell you how to p... |
Before binary code and how it knows what it was doing. | Computers made using what are called logic gates. Essentially, you have two wires going into the gate and one going out. Each input wire can be turned on or off, and the output wire depends on what kind of gate it is and what the inputs are. In an AND gate, the output is turned on if both inputs are turned on, and turn... |
Why did/do countries honor Switzerland’s neutrality in times of war? | Switzerland would be one hell of a nut to crack, so to speak. Basically, it's built into the Alps and surrounded by and made up of mostly mountainous terrain. Very few armies could conquer it and none of them could do so without an immense cost in money and effort and time. Combine that with it having no strategic valu... |
Why only plants photosynthesize? | Randall Munroe of [xkcd] wrote an article that addresses this indirectly. In summary, he was doing some back of the envelope calculations about how much energy a cow could get if it could photosynthesize. He found that under ideal conditions, they might be able to get around 4% of their energy needs from the sun, which... |
If someone with memory issues takes a polygraph, would it be easier to lie? | Polygraph aren't detectors. They simply detect changes in various bodily responses and nothing more. That is why they don't hold much legal basis. So, it can't prove that you are lying, nor can it prove that you are telling the truth. All it proves is that the subjects body responded in a given way to a given scenario. |
How can the sun burn us even when it isn't close to us? | I believe it's because the sun has so much energy that even at the distance it is at the sun's UV rays still have enough energy to burn the human skin. |
what is radiation and how does it cause cancer? | Radiation is actually a collection of very different things that ended up in the same category out of early ignorance in the area of subatomic physics. However, without getting into the nitty-gritty of the different types of radioactive decay, the main way that radiation can cause cancer is by causing or instigating mu... |
Why is there always static/interference during hold music when the person on the other end is crystal clear? | Another reason is that hold systems can be cheaper little things, especially older ones. Like a greeting card with scratchy audio, they just don't have enough memory dedicated to the sound sample. Many of them were made when flash was still expensive for even a megabyte, so the music is compressed without regard to qua... |
How do plants like cactus know there are erbivors that eat them and they generate spines against them? | It doesn't know anything. It's just the one that's alive and not dead. Evolution is that simple. The cactuses that didn't develop any defences died or were eaten. They're evolutionary dead ends that used to exist but over time stopped existing because they didn't breed successfully.Evolution is different from adaptatio... |
Who sells internet domains and why do you have to buy them? | Domain names are managed by ICANN, who permit accredited organizations to perform the registration process for a domain. ICANN charges a small annual fee for registration. You have to pay to register a domain in order to keep the ICANN domain registries running, which are the systems that keep track of who has what dom... |
Why do companies forbid employees from talking about salaries/pay with each other? And why at some companies it’s even a fireable offense? | A wage is a negotiation between an employer and employee, whether you realize it or not. And in a negotiation, the party with more information has the upper hand. Which is why employers want to keep employees as uninformed as possible about their co-workers' pay & #x200B; > **And why at some companies it’s even a firea... |
The difference between the degrees and the warm/cold settings on a split system air-conditioner. | 22C cool tells the system that when the air temp goes above 22 the cooling system turns on to cool the air to 22C. 22C warm is the reverse - it controls the heating system. So if the system is set to 22C cool and the temp is **below** 22C, the heating system won't engage, **no matter how cold** the air gets. |
What causes/caused the black spots on the moon? | Those spots are called maria, from the Latin word for sea, because early astronomers mistakenly thought they were lunar seas, they're actually volcanic plains caused by ancient magma flooding! Each “sea” is actually mapped out and named! So you’re right about “fire”, just not the source! |
How do independent mathematicians make money? | You'll be surprised how many things need numbers. If you ever see some big company setting a number, odds are there was a mathematician involved. For example, every price you've ever seen from a big company probably had a mathematician figuring it out. They know the algorithms to weigh the cost of production, the risk ... |
Why are men and women’s life expectancy different? | One theory is testosterone. It is an anabolic steroid, meaning it builds muscle. So the good part is men have more muscle and other secondary characteristics but there is a bad part, steroids are bad for the immune system.That's why when you have an inflamation you can use steroid creams., now that cream will not have ... |
Aside from having no major enemies, why does Canada not have a military as strong as the US? | America is beholden to weapons manufacturers who sit on the board of directors of most major companies including most of the cabinets of most presidents. While this sounds like a conspiracy, America's relationship with lobbyists has informed its democracy for at least 70 years. Other countries use their money for the d... |
How can natural gas companys shut off gas remotly but then has to send out a person to turn it on? | While it's not impossible with newer gas meters, in general, the gas company doesn't turn off your gas remotely. They have to send someone to do it. You just don't realize it because if you're having your gas turned off, that probably means you're moving out and just aren't there when it happens. Even if you are home, ... |
Why is there so much conflict in the Middle East? Why are other countries like the US involved? | Most of it is territory, and religion based. Israel and Palestine, India and Pakistan , ISIS, are all territory based. Someone owns or stole territory, the other side either wants them to stop or to get it back. Made even worse by religion, which makes it even easier to hate the other side because that's one more thing... |
why can you use non potable water on plants like tomatoes and not get sick when you eat them? | Only the actual water molecules make it into the plant tissue, not the other things. After all, the soil you grow them in is also full of bugs. Non-potable water is clean compared to that. Non-potable just means that it hasn't been sterilized and stored in the way that drinking water has. |
Can someone please explain to me why brands like Guess and Calvin Klein have “(Name of brand) Jeans” on their T SHIRTS?! | I assume it's just for the sake of looking cool, showing off, flexing, etc. Everyone's gotta be *hip* when it comes to clothing now. |
What is coma? How does one feel when in coma? | Well, there's several kinds. Most coma patients aren't really aware of being in a coma, they might have a dream, but otherwise they're just asleep without any activity. Brain is working but they are just unaware of everything. Then there's the aware coma where they're aware and conscious of the fact that they're in a c... |
What is the middle class that important to an economy? | The poor don't have money to spend, and the rich don't spend all their money. The middle class circulates more money around from person to person than anyone else. |
Most relationships require that no party has sexual intercourse with another person outside that relationship. Why? | To my understanding it has to do with humans needing to really commit to their offspring if they want to survive. Our babies really need to step up their game, they're basically good for nothing for at least the first 2 years of their lives. This makes it so that if we want our species to persist then it is favorable f... |
What are the knots in your muscles? | I'm a massage therapist. My understanding is a bit spotty, but in short it's the fascia, which is the non-cellular glue and mortar of the body, being overly built up in an area. Because fascia isn't celliarl. it doesn't die off like living tissue does, it just accumulates. So over time, especially in areas where the mu... |
How do services like 23 & me know who your ancestors are? Do they somehow have access to the DNA of people long dead? | Kind of sort of, but what they really have is access to a lot of genetic information about people living right now, coupled with biographical information about those same people. So they can trace back genealogy through both biological means, and social means . They also have what we consider to be a basic understandin... |
How do over the air transmissions (tv,radio) know how many are listening/watching to gauge the popularity/success of songs/programs? | Upvotes for both of you! That seems crazy to think if that wasn't tested properly they could be broadcasting to no one or tons of people. In addition it would be hard to quantify pricing structures for advertisment. Obviously the more listeners/watchers the more advertising is going to cost. Very interesting guys thank... |
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