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Property usually increases in value, slowly, over time (a lot of mortgages are 15 or 30 years, that's the time period you're looking at). So you're paying your money to BUY an actual physical thing that will likely keep or increase its value over the years. It's like buying $250k worth of gold, it will likely keep or i... |
In tbe middle oftbe sheet its smothering itself. The flame wants to go up and use oxygen yet the paper is in the way. At the edge it has the paper fuel, oxygen all around, and nothing covering the top of it. Surface area. Take two equal size containers, and make ice in them. Take them out, and smash one. The one that i... |
All the other commenters are correct, but no one has linked [this classic xkcd what if]( URL_0 ) that explains and illustrates the concept very well. Orbit is not a function of altitude, it's all about velocity. Obviously reaching orbital velocity at ground level is tough. Lots of air to push through, lots of trees in ... |
It's different depending on each case. Usually they have separate organs but share a circulatory system. It's not uncommon for them to only have 1 heart and liver shared between the two. Every case is different. They will usually share the circulatory system. This means that neutralists and hormones will be shared amon... |
Copying shoes is a violation of trademark law. It's the job of customs to ensure that products entering the country meet our legal standards. There could be several reasons from Any sort of illegal production, transport or link to an individual or company who is barred to infringing on a legally protected product cover... |
Two main reason: 1) Switzerland stayed out of WWI and WWII, and 2) they experience great economic freedom with low tax burden – especially for foreign millionaires. 1) Wars are extremely costly. When most of Europe and the western world ruined just about all of the wealth they attained during the industrial revolution ... |
I remember learning in immunology class that certain common allergens like cat dander, grass, peanuts have antigens that coincidentally look like antigens of parasitic worms. Antigens are basically the little protein markers hat your immune system "sees". For most of human history we've had to deal with worms, and our ... |
The internet is based on a system called [packet switching]( URL_0 ), specifically [TCP/IP]( URL_1 ). When sending data between two computers, this data is broken into packets, and each packet contains the IP address of the remote computer (and also of the sender's computer and other information, but that's not importa... |
From a technical metalworking standpoint, lapping is a final finishing operation concerned primarily with minor surface finish and flatness corrections. Honing, on the other hand, is used to remove material and/or correct the roundness of cylinders as well as providing a controlled surface finish. Generally lapping use... |
It was a theory that came out from general relativity. When people started to apply the new theory of general relativity on different mechanics to see if they could find a flaw it was discovered that the observed motions of Mercury were much closer to the calculations if you used the fact that gravity were limited to t... |
Try lifting your partner when she is unconscious/asleep/passed out from drinking. It's a hell of a lot harder because in those cases they are dead weight, meaning they are not shifting their body weight subconsciously to help you lift them. Same concept with inanimate objects, they are simply dead weight that won't hel... |
Most movies in the past were recorded on film, which is a very high quality medium. However what was released on VHS and other forms had to be lower quality due to the nature of those mediums. By going back to the high quality film they can make a HD version for modern mediums. Up until the last decade, most movies wer... |
Iron from blood vessels bursting inside your nose. Your smelling the iron in your blood most likely. Could be micro capillary bursts that means you bleed but not in any way that's going to be noticeable unless you use a fiber-optic scope and look. You could be smelling that. Could be that after getting struck there's a... |
Computer storage and the human memory are not directly comparable. Computers store information as states of "on" or 1s and "off" or 0s. A single one or zero is a bit, and 8 of these put together (at least in most modern computers) is a byte. But brains don't work like that at all. We store memories as connections betwe... |
Two major reasons have been identified: To keep your nostrils moist and to improve your sense of smell. Your nasal cycle is a result of tissue (the same kind that erects penises for a living) on either nostril increasing in volume resulting in that side being blocked off. This is in part because the open side get dried... |
> How can we estimate that the golden record on Voyager will last a billion years? We can't, really. 1. As the pre-poster wrote in space you have a barrage of "small particles" that might wear anything away. 2. We have radiation that also wears material away, it is little, but it is there. 3. We do not know what exactl... |
Imagine being in a very large room, and you can only see a small part of the room at any time. Someone makes a small opening (door, window) in one part of the room. You can't leave immediately since you don't know it's open until you explore it. On top of that, flies are very bad at figuring out transparent obstacles. ... |
It's actually one of the least common tics, its a condition called corprolalia. It's famous because its the one people think is funny. It's all pretty mysterious, even to doctors, but one theory is that it has something to do with the way our brain stores "taboos" in a separate part of the brain. An example of this is ... |
Plastic is made of dead dinosaur food: let me explain! Plastics are a general category of different materials: Plastic bags are made of polyethylene, bullet proof glass is made with polycarbonate, teflon is good for slippery chemical resistant coatings, polyester is often used in clothes, PET is used in water bottles, ... |
Physiologically there is no single moment of death and its difficult to define. It's usually a legal definition rather than medical. In the UK, a doctor can pronounce dead (others such as paramedics can't but they can "recognise life extinct" in specific circumstances) If I have to pronounce someone dead I have to esta... |
Medical student here. The insides of your lungs are coated in a liquid called a surfactant. This lowers surface tension, making it easier to breathe, and, crucially stops your lungs from collapsing. Specifically, it stops your alveoli, the small little containers for air, from collapsing. My lecturers tell me that ever... |
Most bullets will not be perfectly symmetrical sure to flaws in the manufacturing process. These flaws will cause a bullet to naturally veer during flight. Think of a plane with the tail kinked slightly to one side, it will not fly sight without constant adjustment from the pilot. Since bullets cannot be stress once sh... |
The image that /u/bulksalty does a great job of showing what it does but a major driving factor for them is basic aerodynamics. A teardrop is the ideal aerodynamic shape to reduce drag, which is induced by a low pressure zone that acts as a vacuum pulling back on the vehicle. Since a teardrop smooths out the air's tran... |
In most cases, then actual money does not change hands. The amount is transferred electonically and appears on the balance sheet as a credit and debit respectively. In some cases, a tangible asset is transferred, in the form of gold or some other asset of value with an assessed value equal to that at the time of the ex... |
Here's one way to look at it: If y(x)=e^x , then y'(x) is a function that gives the slope of e^x at any x. In the case of y(x)=e^x , the function that gives the slope is e^x ! That means that at any point on the line given by y=e^x , the value of y is *also* the slope of the line. I'm not going to use ANY math. I'll ex... |
Hi, This is a great question as solar cells require quite an elaorate design to work well. If you would like more information, I recommend checking out URL_0 , it has information on all aspects of solar cell design and function. Solar cells work because they are made of a special material, called a semiconductor (such ... |
It's not clear exactly what you mean, but I'm guessing you've seen someone call eg `Array.prototype.forEach.call(x, fun)` rather than just `x.forEach`. In that case, the Array prototype has a function attached called `forEach` taking one argument, an anonymous function. Within the prototype, *this* refers to the array ... |
"Love bites" are bruises. Bruises alter their surface color depending on the type of tissue, the depth of the bleeding, and the stage of healing and transportation of the clotted blood out of the wound area. |
In psychology it's called displacement. Basically, it happens when we can't safely vent our frustration at the source of our problems so instead we redirect our anger to a more harmless source that we can more easily make up with later on. So for example, you can't tell off your shitty boss for fear of losing your job ... |
Technically yes. There are a few types of underground water supplies. The first is the water table. When it rains where does that water go? Well you do see most of it run down the sidewalks, and streets. Where does the rest go? Underground of course. It drains through cracks, and soft soil till it reaches the point of ... |
No. People drink caffeinated drinks all the time. These cause mild elevations in pulse and BP and for most they are harmless. It's a matter of degrees. How elevated? What underlying health issues does the person have? How often is it happening. Things like that. The problem with abusing stimulants is that it's hard to ... |
Think of it like this. When you're dividing something, you're asking a question. When you see "1 / 2 = 0.5," you're seeing the question "If you take one and cut it into 2 pieces, how big is each piece? It's 0.5 the size of the original piece." Likewise, "1 / 10 = 0.1" means "if you take 1 and cut it into 10 pieces, eac... |
For one thing, that's just one part of how you define a 'species' - consider (for example) *H. neanderthalensis and H. sapiens*, which produced fertile offspring but are still considered (by most authorities) to be distinct species. To answer the actual question, might as well continue with the Neanderthals. Neandertha... |
Babies *do* get UTIs. Girls are far more prone to them than boys. Often they go undiagnosed for quite some time, as the baby obviously cant explain their symptoms to their parents. |
Salt intake doesn't really cause high blood pressure in normal healthy people. In people with high blood pressure, a reduced sodium diet reduces water retention and therefore total blood volume and therefore reduces blood pressure because of the reduced blood volume. If you are healthy and normal, you body regulates yo... |
Glow-in-the-dark effects are achieved by adding phosphorus chemicals to the material that's supposed to glow. Phosphorus atoms absorb light, and the energy from the (light) photons that are absorbed bumps the electrons in the phosphorus atom to higher orbitals. They orbit there for a while and then go back down to thei... |
The benches take up nearly the entire sideline. The side the cameras face are lined with advertising boards in front of the stands. I'm not sure how the payout goes (if all the advertising revenue goes to the club, or some is pooled for the whole league), but the constant TV exposure would allow higher rates to be char... |
There is a saying I read somewhere:- "If you drop a mouse, a man and a horse down a 300m well. The mouse will get a shock and walk away, the man will be broken and the horse will splash." Fruit flies are not particularly tough. If it just disappears, it's possible that the air in front of your hand pushed the fly out o... |
The pressure of the water at that point would overcome any sort of resistance. The deeper down you go... The more water pressure is experienced. You also need to remember its pressure, if you slap the water really hard with your 30/50m water resistant phone or watch, you're likely hitting it with higher pressure than i... |
Heat is also transferred by radiation, which does not require a medium (particles, like air/water/etc). Your object in space would radiate heat and start to cool, but you also have to account for incoming radiation (from the Sun, for one example). So, your answer depends quite a lot on where you put the object. If the ... |
Do you have metal caps on your teeth? The zap of pain comes from two different types of metal interacting with each other. These metals—with help from our saliva—create something similar to a very low powered battery. When we bite down, the stored electric charge flows through the teeth to our nerves, and our brain int... |
First off, there is a difference between preferential and discriminatory, and secondly discrimination laws are protection against specific protected classes such as race, religion, disability... being a veteran or not isn't a protected class Federal laws do not forbid discriminating against applicants who aren't vetera... |
You can be no more alive than those moments when you fear for your existence. After a while it becomes addictive |
Bourgeois is French for Bürger (vice-versa) and in both German and French, the word designated people who lived in the protection of the city walls (Burg is the German word that designates a castle that also has a surrounding protected area), as opposed to peasants outside those walls. Due to how trade guilds developed... |
Nothing. Overstaying the visa is a very common way (the most common way?) of staying in a country. That's why the wall makes no sense, people don't walk across a vast, dangerous desert if they can just land at LAX and grab a taxi. The vast majority of illegal immigrants overstayed a legal visa: URL_0 Nothing at all. Ma... |
It is when a company buys a non-consumable good they will keep indefinitely. A printer is a capital expense, paper for the printer is not. They are accounted for differently because they represent one-time purchases as opposed to recurrent expenses. You are usually allowed to deduct depreciation of goods purchase throu... |
It's a survival instinct. Humans have a negative memory bias. For thousands of years it was a lot more important to remember to react quickly and appropriately to dangerous or stressful situations than to remember that your buddy Fred gave you his last banana a year ago. So negative memories leave a much stronger impri... |
Think of the lymph system as a doctor that's constantly making sure small things are taken care of. S0, ELI5: The Lymphatic System is a highway for the body's emergency services like cops, ambulances, fire trucks, and hearses to get around The lymphatic system is a system of vessels, somewhat similar to regular blood v... |
The sun produces a massive amount of energy due to the nuclear fusion reaction in its core, in which the element hydrogen is converted into helium. The temperature in the core is about 13,600,000 degrees Kelvin, and this heat is transferred into the next layer through thermal radiation. After that, the heat is carried ... |
It most likely affected your appetite causing you to eat more than you used to. Have you had any changes in how active you are? Sounds like food became the primary substitute for your meds. I know when I'm sad I start binge eating like crazy. Maybe your mood changed your behavior in small, but powerful ways. |
A database upload would take a fair bit of effort over a short period of time, which governments usually shoot themselves over. Combine the lack of an upload with the fact that records employees aren't paid enough to bother being efficient, you now have a system where requests take ages and there's no improvement. Blam... |
You won't gain the weight back as long as you don't go back to your previous eating/activity habits (which were likely a combination of eating too much and moving too little, essentially). Your body has a range of "maintenance calories" that it needs for day-to-day living, which is generally in the 1800-2400 range, dep... |
Think of it this way. You move, and you pack up all your stuff. Copying is just moving boxes to the new house. Actually installing is unpacking your stuff and putting it where it belongs If the entire program is a single file, yes. Most programs these days aren't and require a substantial number of different libraries ... |
Because while depressed its hard to just feel the emotions on your own. Being with someone else and feeling a little bit of there emotions can guide you in the right direction. When you then leave the person and the emotion goes away it feels like you've siphoned it from them like a parasite would. Or I could just be s... |
Many of the stains we get on clothing are due to organic molecules, little groups of atoms bound together in particular structures. Because they are rather large and sticky, they get stuck in the fibers of clothing or carpet and make stains. Bleach is a strongly reactive substance, meaning that it interacts with the st... |
A muffler goes on your car. Both the Silencer and the Suppressor are two terms for the same device. a silencer is a made up thing movies use. a suppressor is a real thing that actually makes a gun sort of quieter but not even remotely silent or even quiet. A muffler is a car part. A suppressor and a silencer are the sa... |
Profit (technically) doesn't matter when it comes to stock. When you see a "price" for a stock, that's not the price sticker of the stock like an item on a shelf in the store, that's just the average price people are willing to pay for a share of it. You can sell your stock for less, you can sell it for more, as long a... |
Light is photons. Photons are the "carrier particle" of electromagnetism, one of the four fundamental forces in the universe (along with gravity, the strong nuclear force, and the weak nuclear force). Think about it this way: we know that things with like charges repel each other, like two electrons. But how do the ele... |
What you've described is the case, according to the standard big bang model. The (potentially terrifying) thing is that we will never see beyond this 'horizon' because space itself is expanding, meaning that everything beyond that horizon is moving away from us faster than the speed of light. So we will actually only b... |
Partially because it's what everybody else does on the internet, but I think it originated with it being a juvenile-looking font being used in inappropriate contexts - company memos, advertisements, etc. Also, if I'm not mistaken, the font originated with that godawful Microsoft Bob operating system. That probably didn... |
When you accelerate an object, its momentum increases. Momentum is (mass) x (speed). An object can not reach the speed of light, c; it can only approach it asymptotically. However, an the momentum of an object can increase forever, provided you keep applying energy. So if momentum is increasing, but the speed is not, t... |
Let's say you work for me. I pay you $300 per week. You tell me you want to save up $3600 to buy something (3500 calories is one pound of fat). You have two options: You can run to the bank and deposit the money after I pay you each week (heck you might even earn a little interest on it and have more money than you nee... |
A few reasons or possible explanations 1. Human teeth evolved to be non-threatening. The behavior of showing your teeth to show happiness evolved afterwards. We are not flashing scary incisors when we smile. Perhaps we flash our teeth to show that we do not have menacing teeth. 2. Eyes during human social interaction i... |
That was the range assigned by various governments throughout the world for FM radio. Use of radio spectrum frequencies are regulated by the government. The reason being that if 2 people try to use the same frequency they could potentially interfere with one another. As a result various frequency ranges are assigned fo... |
1. The outside of each blood vessel is made of a material that has the right blend of firmness and flexibility. 2. Most blood vessels are surrounded by soft tissue that will yield first, or hard things (like bones) that will protect them from some of the pressure. 3. The interior of blood vessels is pressurized by the ... |
In the middle of the Earth is a big, super hot ball of iron. It should be liquid but it is kept solid by the massive pressure of the surrounding planet. Surrounding this is the outer core, made up of various metals. There's less pressure here, so it is liquid. The outer core is not constant. Like the ocean, there are c... |
So there are various ways that this happens and the pathogen rarely causes these symptoms directly. For one, your body's immune response does not simply eliminate foreign material (pathogens). While that is the goal, halting the spread of a pathogen is most important in a multicellular organism/host. Now flu-like sympt... |
Reaction times. Basically, when you jump down off something you need your legs to act like the springs and shock absorbers do in a car when it hits a pothole. If you locked your knees, and jumped off a high wall, you'd break your legs on the impact. But if you have bent knees, you need to time it perfectly- you need to... |
All the air would rush out of your lungs, and your ears would be very painful, if your Eustachian tubes were blocked at the time your eardrums would very likely burst. Your digestive tract would begin to swell up due to trapped gases, and some gasses would begin to leak out of your esophageal sphincter and anus. Any mo... |
Caviar traditionally comes from sturgeon, whilst [tobiko]( URL_1 ), the colorful little fish eggs you find on some sushi like a California roll is from flying fish. The translucent little red/orange balls you also find in some sushi is [ikura]( URL_0 ) which is salmon roe. Yes, they're all essentially the same in that ... |
Diplomats are sent out to negotiate with foreign governments. When you send out someone to negotiate on your behalf you have a need to tell them stuff that the people they negotiate with aren't to know - like for instance the minimum they must get in a deal for it to be acceptable. Since every country has this need to ... |
Night of the Living Dead, which was released in 1968, was shot on black and white film for one very important reason; black and white film was cheaper. It was cheaper. Not just the film stock itself, but also set design, props, costumes, and lighting. That, and familiarity with the process, are pretty much the only rea... |
Opinions about this shit change over the years & the people who started buying hard brushes don't want to change their routine. ...and they're great for cleaning things. We're only supposed to use soft bristle brushes now? Why didn't I get the memo? |
When i was young i went to the beach with my parents every so often. But this one time i was swimming out a bit too far. Before i knew it the current was taking me and my beach ball to open sea. In my struggle to get back i had to ditch the ball and my mother and a bunch of strangers had to pull me out of the water. To... |
I believe this is partly due to the same reason we get goosebumps. The shivers are usually followed by goosebumps, which is in part an evolutionary response. This was more useful when we were covered in body hair, and the hairs stood up when the pores pulled closed. This is to seem "larger" in the same way that cats ra... |
It's a figure of speech called a [synecdoche]( URL_0 ), where a specific part of something is used to represent a whole. When referring to a person's eyes, you're actually referring to his entire facial expression (and perhaps other body language). It would be hard to quantify the (possibly perceived) affective (read e... |
They are just normal characters with diacritic marks added to them. Diacritics are basically like accents or glyphs added to a character—typically above or below the character. Usually they are used to signal a slight change in pronunciation but can also be used for other purposes. If you apply multiple diacritics to t... |
Holy shit! Table salt is amazing! It does two incredibly important things in cooking: 1. It breaks down and releases sodium when it dissolves in your mouth. The sodium bonds to one of the major flavour receptors in your mouth (i.e. salty flavour). This has a synergistic effect on other foods; particularly savoury flavo... |
It ensures that the security questions are of some level of difficulty. If they allowed users to define their own questions then some would be "My password is hunter2." Because people are idiots. People selecting security questions like "write 'abc123'" or "what's my name" or such would mean multiple people could have ... |
It's a skill, let's say standing wasn't a thing that you do normally so you will have to face the same issues as standing on one leg (different of course). Quick explanation about how you gain a skill (standing, handatand, riding a bike): You just need to do it, time after time and each time you are improving your mot... |
I was on a game show with my family once and the show had a specific rule. "If we offer a prize you act excited. You clap, cheer, etc. if you miss out on a prize, act disappointed. Whether or not you like the prize, or already own the prize, you will make that prize seem like the best thing in the world or we'll send y... |
The problem is that when people talk about this subject, they cut out so many technicalities that they miss the entire point (like other threads about the same subject in this sub). I'll try to cut as much of the technical stuff that I can. So think of it this way: a core has 2 parts. One deals with integer operations ... |
This is a classic example of good instrumentation design. Must people don't know what a "good" temperature is, so showing the actual number requires them to learn and think more. A gauge that reflects meaningful analysis like cold, normal, hot, and "too hot" is actually more useful to most operators. The average person... |
Moving air has a lower pressure. The faster it moves, the lower its pressure. When you breathe what you are really doing is opening your lungs and creating a low pressure area inside your body. This means in still air, air rushes into your lungs to fill the area of low pressure. When the air outside is lower pressure i... |
You know how people say we only use 10% of our brain? That's completely false - we use 100% of our brain. However, not every part of the brain is active at the same time. Unless you're having a seizure. When you're having an epileptic seizure, every part of your brain is firing uncontrollably. It's no fun. We're not 10... |
There are two ways. Your calculator likely uses [floating point arithmetic]( URL_0 ). Instead of holding the number as-is, it holds two numbers - the mantissa (m) and the exponent (e) - which represent the number m\*2^(e) (and one extra bit is used for the plus/minus sign). The number 2^64 is can then be represented us... |
If there really was excess electricity because the motor speed was too high, the voltage would rise. Voltage fluctuation is acceptable within certain limits, but past a certain point it could damage the devices attached to it. Generators you can buy have regulators to prevent this from happening - see [here] ( URL_0 ) ... |
Becasue the clasp is typically heavier than other links. As someone moves, eventually the clasp will move from the centre of the next to the left or right. Sooner or later the lock will get to a point where its easier to slide down, gravity will come into play and it moves down to its optimal resting place which is at ... |
Seeds generally require three things to "decide" to germinate: warmth, oxygen, and water. Water affects seeds by causing them to swell enormously and break through their coating, allowing the seed to begin to grow. At the same time, the water activates hydrolytic enzymes (chemicals which cause water to react with other... |
Among other reasons, tobacco companies suppress knowledge on the toxic stuff in cigarettes. Take polonium-210, an isotope in the radium decay chain. It's been known to be a major carcinogen in cigarette smoke since the 1960s. Tobacco growers failed to clean the stuff from the tobacco leaves, partially because the washi... |
It's the same as any hacking, it's just done with the express permission of the system's owner. You can hack your own computers, for example, all you want. EDIT: Typically white-hat resolves to reporting problems to the owner, helping them harden their systems against those attacks, and reporting flaws exploited to the... |
Marshmellows are essentially pure sugar. Sugar is made of of three elements: Carbom Hydrogen Oxygen The products of said reaction, given perfect quantities of all elements, are CO2 and H2O. That said, the reactions are not perfect, and there is more carbon left over at the end. It remains in an elemental state, being s... |
I don't know about men that do this, but women do it so you don't end up with a phone covered in make-up and hair products. Also, depending of your earrings, you can get a clanking sound when your earrings hit the phone. Source: my wife. I think in some cases the earpiece isn't loud enough in some environments, even at... |
There are a lot of them, at least here in Germany. Mine looks basically like this: URL_0 Left side is on/off, right side is temperature. They make them. Pretty expensive but they are out there. A shower or even a sink for that matter generally works like this: There are two valves, one hot one cold. The more you turn t... |
It calculates them using binary arithmetic. Just like you can add two numbers using [vertical addition]( URL_0 ), the calculator does the same, except it uses binary instead of decimal. The same concept of vertical/long arithmetic is used for division, multiplication and division as well. |
Lot's of people eat due to boredom. Lots of people smoke when bored. If you stop smoking, lots of people use that bored energy to snack. Additionally, nicotine is an appetite suppressant, so losing that increases hunger. Smoking (nicotine) is an appetite suppressant. Cigarettes were once advertised as a way to control ... |
Matter has gravity because it has mass. Just like the source of electromagnetism is electric charge, the source of gravity is mass - it is the charge of gravity. What is it about mass that causes gravity? Well, general relativity tells us that the presence of mass *bends space*. This is quite a tough concept to get you... |
Because by 1918 all the major powers had figured out how to successfully attack basic trench lines, so anyone who had been foolish enough to try a WWI style trench system would be driven out of it pretty quickly. Probably the best WWI example of this was the British 5th Army which in 1918 was still using 1916 style tre... |
Pain is a lot more psychological then you may realize. The brain can be an extremely powerful thing, if used wisely. Have you ever heard of the term, "fake it till you make it", or heard about those fake knee surgery stories where if the patient was simply told the surgery was a success, but the surgery never actually ... |
Let's say you get your TV and your internet from Comcast. Comcast owns the lines (with government oversight) that run from their hubs to your home. Comcast sees that you use a lot of your internet bandwidth to do things that compete with their TV service (like Youtube Red, Hulu, Netflix). Instead of keeping your $100 p... |
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