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It's less of "This ball is a toy" and more of "this rolling thing is entertaining." Most animals need some form of entertainment, and a rolling object is very helpful in that. Humans aren't really any different. We roll things around all the time and entertain ourselves with things that are necessarily play things. Thi... |
The Bell 230 and the 212 are mediums that have two blades. Both those were replaced by 4-bladed versions (the 430 and the 412). There are many factors that determine the number of blades. But in general, the trend you see in looking at the results of many development programs is this: smaller, cheaper, and slower helic... |
Gasses are more soluble in a liquid like water when it is really cold, and its solubility goes down as temperature increases. In hot water, a lot of those dissolved gas bubbles have left the water, whereas in cold water, the gas bubbles stay dissolved in the water easily. Thats why you see more bubbles in cold water th... |
Sperm is most mobile and healthy a few degrees below body temperature. As such when they get warm they extend from the body to cool off, when they get cold they retract into the body to stay warm. The penis shifting is size is a byproduct of this action to protect sperm production. |
Coming from an aquarist who works with sharks- Great White Sharks are what are called ram ventilators. This means they constantly have to keep swimming to keep water passing over their gills. Sharks have what is called a glide pattern- they have a burst of swimming, then having a gliding portion. When kept in human car... |
The calories are the same, but fats produce 9 calories per gram, while carbs like sugar only produce 4 calories per gram. If you look at it from a more shallow, overview, or chemical perspective, yeah, calories are just units of energy so a calorie from fat is the same as one from sugar. [Specifically they get these va... |
Inside those clumps is dry flour. The surrounding flour holds the water tension creating the clump. Thats why you have to mix the flour thoroughly in order to break the water tension in each indivual clump. EDIT: I had used the wrong spelling for the word "tension". |
Imagine a movie reel. The whole movie already exist, you just experience one frame at a time. I like to think of it as this. As humans, we experience time like riding on a train. It is a predetermined line and we can only go forward. Non-liner time would be like us looking at a meter stick from above, where every numbe... |
Major cities had a "long distance switchboard" which had access to overseas telecom lines (typically cables running under the ocean). You had to call the operator and ask for "long distance" and then talk the the "long distance operator" and tell them what country you wanted to call. They made the connection through ve... |
Stock trading is just the buying and selling of a share in a company. ELI5 the simplest way to trade stocks is to open an account with an online broker like E*Trade (I am not endorsing them...just an example). It will require you to put money into your account with them and then, with that money, you can buy stocks tha... |
I think it's safe to say no one actually knows the answer to this. My ten cent hypothesis though, has to do with the composition of the Genome. The human genome is only about 45%G/C Also, for one reason or another organisms tend to use GTP in G-Proteins, which excessive amounts of GTP present can allosterically mimic G... |
Educated guess here but in hip-hop it's very common to feature other artists on a track so it helps the artist gain exposure and let's the listener know who's verse or was when they like it. Also worth mentioning that alot of artists (Kanye and travis scott particularly) don't put the feature artists name on the track.... |
Probability wise, there are millions of configurations for a piece of rope, and being straight and untangled is 1 of them. |
A big argument is [space debris]( URL_1 ) When a rocket is in orbit, it ejects empty fuel tanks and boosters that will stay in orbit. These objects continue to orbit the Earth at incredibly fast speeds, and will cause huge damage to anything entering Earth's orbit in the future if they collide with new rockets. Every t... |
You cant smell yoirself because you are always smelling yourself. Your brain eventually just blocks it out. |
The universe is believed to be infinite in all directions. We reside within an observable universe, which is the spherical region around us that has had time for its light to reach us. This is expanding and it is called the particle horizon. As time passes, further regions have had time for their young light to reach u... |
Different drugs will have different mechanisms of action. For example Benzodiazapine enhance the effect of the neurotransmitter gamma-aminobutyric acid (GABA) at the GABAA receptor, resulting in sedative, hypnotic (sleep-inducing), anxiolytic (anti-anxiety), anticonvulsant, and muscle relaxant properties. |
Because the sound of snoring can be described as a buzzing sound, and Z is just the letter that fits best. It is onomatopoeia for the sound that snoring makes. At least to English speakers that is what it sounds like. This was posted a few months ago by /u/phd_dude and appears to be very well researched: One of the mos... |
When a person's physical or emotional state changes, breathing changes right along with it. And interestingly enough, a change in breathing patterns also affects your emotions. |
Adrenaline rush. The same reason our face turns red after exercise. Blood vessels come closer to skin surface to lower body temperature. |
considering they have an extremely active lifestyle (swimming constantly all the time) and a relatively low cholesterol diet (mostly plankton and krill iirc) they are presumably at very low risk for blood clots in the first place. Also, humans don't tend to develop blood clots in our aortas. The aorta is susceptible to... |
Since you didn't say the exact game it's hard to say, but I would guess that the game has some sort of intermediary to help with that. So, without port forwarding you have: You < = > intermediary < = > other player While with it you have: You < = > other player If the intermediary happens to be on another continent or ... |
Don't quote me on this but from my personal research and studies on cognition, emotion, memory, and the ego. I believe that tasks that we don't feel like doing, which doesn't have high priority is quickly replaced by other tasks or thoughts of higher priority. Some of which maybe for entertainment and others for urgenc... |
I’m not exactly ſure what you’re aſking about, as your queſtion is very vague. Nevertheleſs, I ſhall endeavour to anſwer it to the beſt of my ability :— A bottleneck is when a large number of things are limited in what they can do or where they can go by a ſingle component or a ſmall thing, much like water in a bottle.... |
That's just a search trends, not sales number, though it does suggest declinging interest in the platform. Here's some guesses **Market saturation** - everyone who's gonna get an iPad has one, and doesn't really feel like upgrading right now. **Larger mobile phones competing** - The size of the average mobile has gone ... |
They didn't. Homing pigeons naturally return to their nests. So what they did was establish rookeries where there were lots of nests of pigeons at key locations. They would then send those pigeons in cages to other key locations and when you needed to send a message you picked a rookerie closest to your target location... |
"feel good" chemicals like Dopamine and and Serotonin don't cross the blood brain barrier, so you need drugs that will cause the brain to release them by itself. They can't cross the blood-brain barrier, so you essentially can't inject these "happy chemicals" such as Dopamine I'm not sure how exogenous dopamine is trea... |
Smells don't have hue, that is a reference to color which the eyes convey. It appears you are experiencing synesthesia which is a wiring mixup in the brain where perception of one sense is interpreted as another so smells have hues or colors have tastes, etc. As for why your individual brain associates smells with hue ... |
It's not called "paying taxes." It's called "filing a tax return." People are just sloppy when discussing some subject because you know what they mean. It's not. I've never heard anyone call the process of competing their taxes "paying taxes." You file your taxes or you do your taxes. Your taxes are not taken away from... |
It's a very good question, and one that's not 100% understood. One leading guess is that overuse of a muscle, especially if combined with bad posture and form, can lead to muscle fibers tensing up and restricting blood flow. URL_0 |
Your brain isn't like some separate entity floating out there handing out feelings. *You* are your brain. How you feel very much depends on your life experiences, how you interpret and understand different situations, your upbringing, your culture, etc. If you understand sociopathy as antisocial personality disorder, t... |
Is there a need to declare it as a holiday?. Most states allow in person voting and mail in voting in the weeks preceding an election, although the locations may not be accessible to many. Because there's not enough interest in making it easier to vote, sadly it's become a partisan issue. if you had the day off, would ... |
Domestication usually requires an animal that is easily controllable (lab mice) or has some sort of follow the leader instinct we can highjack. Horses for example are herd animals, their herd has a dominance hierarchy and they're quite social animals (they littrealy get depressed and stressed out without company). I wo... |
Generically speaking wind is the motion of air moving from high pressure zones to low pressure zones. It can be caused by any number of things but a major player is ocean currents that move warm water (and air) around the globe. Other events that can trigger wind include but are not limited to: Solar Radiation, Earthqu... |
Former game developer here, Rare does a AAA title build from scratch, typically they'll use pre-existing engines, leaving the hard work to the pros. Also, engines are part of a games branding. Assets, being your models and textures for the purpose of this ELI5, are created in editors, and saved to some project file for... |
Uranium comes in two forms, U235, which is the fissile kind that runs power plants and explodes under the right conditions; and U238 which is far less energetic. Depleted uranium is mostly the 238 form, which has different useful characteristics: uranium metal is an extremely hard, dense, and non-malleable substance. T... |
The idea is that, at least for positions that require Senate confirmation, the Senate would reject anyone unqualified, and the President wouldn't nominate them in the first place with that knowledge. In modern times, the Senate just serves as a rubber stamp for nominees if the Senate majority is the same party of the p... |
Several companies have tried. One example is Soylent. They ran into some issues with upset stomachs and some supply issues. URL_0 I believe there have been several others that failed due to cost and health issues. Commercial "dog food" is human equivalent to McDonald's or BK or whatever. It isn't nutritious, it isn't h... |
If they plead guilty then the prosecution doesn't need to go through the effort of a trial and possibly fail to convict them of the charges. On the other hand if they didn't offer a lighter penalty than they are going to try for in the trial process what incentive would the accused have to plead guilty? Also pleading g... |
Air moves over pressure differences from high pressure to low pressure. When you breathe in, your diaphragm contracts, creating low pressure, thus forcing air to flow into your lungs. Due to [Bernoulli's Principle]( URL_0 ), fast moving air will be at a lower pressure than stagnant air. Therefore, the pressure differen... |
> Let's say a king wanted to have meeting at 7am back in the 1400s. They didn't, because they didn't schedule like that. They would say "an early meeting at daybreak" and then the king would start the meeting at this convenience. Clocks were rare and inaccurate in 1400, so there wouldn't be a 7am meeting. More likely t... |
Mental illness often develops as a result of or is triggered by stress. Most people don't experience significant stress until they become more responsible for themselves. The stress of not studying for a test is nothing compared to the stress of losing your job and not knowing how you will make rent. |
Unaware is different than no memory. You will often wake up just a little while sleeping, but because nothing eventful happen and your brain isn't at peak efficiency, those short term memories don't get committed to long term. Also, children have evolved to sleep more soundly the adults. They have adults to protect the... |
Accidentally. Often, it doesn't actually end up killing enough hosts as to prevent the spread of the disease, which is what makes them continue to exist. For example, if it made a person explode violently into billions of tiny airborne particles which would then be easily inhaled by other people, and it lay dormant in ... |
Generally you get a fever when you are ill. this results in your body temperature being much warmer than the air temperature. you would then feel like the air around you is much colder than it actually is, thus you feel cold all the time, except when you are in an area that is as warm as your body. this is also the cas... |
the salt extracts moisture from the snail. snails "skin" is a thin membrane which is very permeable to liquid. this one of the reasons why they are slimy. when you put salt on your skin it also sucks out water, but much slower. for a snail this happens very quickly, resulting in their death. it should be noted that sal... |
Its all CYOA. The company making the product can't advertise that it kills 100% bacertia. This is because of human error. If someone uses their product the wrong way, and gets sick, they can sue the manufacturer for false advertising, and in this society, they stupid person would probably win. Same thing with The Birth... |
Police departments typically have budgets for confidential informants. Sometimes it is easier to give a homeless person $20 than it is to fill out a bunch of paperwork. |
So simple break down, sperm, just like other types of cells are constantly dying and being replaced. I could get super technical here, but when sperm cells are stored in the testicles, and in essence once enough of that storage is full, then the body will release it, just like any other cells. Everyone laughs at the te... |
To quote u/Nevuary's explanation (which was in the post you linked). > The gradients are more likely caused by the fresh glacial water carrying glacial sediments meeting the ocean water which has a higher salt content. These two bodies of water have different densities and therefore take longer to mix. They will mix gi... |
When you're moving, steering to the left moves the wheels to the left. That helps you to correct a lean to the left by bringing the wheels back under the centre of gravity. When stationary, that doesn't happen and you keep falling to the left. It's called the gyroscopic effect which works on the conservation on angular... |
It's a very distinct combination that shows edges very well no matter what the color of the non-transparent part is. It's basically there to say "look, I'm transparent here. Don't mistake me for anything else!" Probably because photoshop has been using it for so long. A solid color would be hard to distinguish as trans... |
Suppose you make a graph, or many graphs, which show the distribution of various traits of human voices for the entire population of the planets. Like a graph showing what % of the population has a voice at X frequency. You can do the same for other attributes you might use describe somebody's voice. Now, if you make t... |
Because being in class is boring, and you can't move around much. This makes it easy to doze off. At home, you're usually doing things that you find interesting, and you can get up and move around at any time to help wake yourself up. I wouldn't say its *easier* but being in highschool I never really went to bed at a r... |
Imagine you can only see the color red. If you have access to something translucent and red, you can basically run the experiment. (Or, if you have anything tinted and translucent, you can use that color.) With your red-o-vision, look around the room. You'll notice that [everything you see has a color]( URL_0 ), all of... |
Less access to contraceptives. Developed nations also have better education when it comes to sex-ed, and they aren't tied down to their core family as much. |
It's more accurate to think of humans as being able to subsist off a large variety of diets, as compared to cows which can really only subsist off one or two forms. This is partly the reason why humans as a species, like rats, were able to spread across the globe and survive in all kinds of habitats. We don't necessari... |
Perhaps you are not distinguishing between "sleepy" and "tired." Feeling **sleepy** is part of a physiological cycle. Your body clock is saying that "now would be a good time to get the required amount of sleep." You do not necessarily have to have run out of energy at that point any more than you have to be starving t... |
It basically means they make groupings of those variables and treat each one like its own experiment. Let's say, for example, that I want to compare drivers in Florida (one of the oldest states) and Alaska (one of the youngest). If I find that drivers in Florida get in more accidents with no qualifying information, you... |
From radiation? Yes, water stops radiation (alpha and beta) better than air. There would be a shit load of other problems though if enough nukes were launched that stirred up a bunch of crap into the atmosphere and caused a nuclear winter. Food and migratory paths and a whole lot else would go to shit even in the ocean... |
Jaundice in a newborn is not always fine, but in the majority of cases it is. Referred to as Physiologic Jaundice of the Newborn, it occurs usually between days 3 and 5 of life and is the result of a protein called bilirubin. The liver typically breaks down and gets rid of bilirubin, but the immature liver of a newborn... |
The goal is to have so many, so insanely many, that there is no hope to counter them. You could never counter enough through any means. Even if tons malfunction, or otherwise can't launch or be used, you still have heaps left over that will work. And adding on, nuclear targets aren't "10", they number in the 500-1000 r... |
> How do hackers hack a web cam? Bugs. A lot of software is insecure. Not all. A standalone webcamera is an "Internet of Things" device. Oh god, there are so many poorly secured IoT devices. > And is it possible for them to record without the indicator light turning on? Depends. If the light is hardwired to the power o... |
Read the packaging. If it has instructions for microwaving, follow them. If it doesn't, don't microwave the package. |
Felix Kjellberg (PewDiePie) gets famous playing videogames and talking about stuff on youtube. I don't know why kids even like this junk. I guess I'm old. He's "signed" with Makers Studio. I also don't know what they do. "produce" I guess. Disney bought Makers Studio at some point. Anyway, they all get paid through ads... |
Fans are similar in operation to pumps. Fluid (in this case air) enters the fan at a low pressure on the the backside. The fan adds energy to the fluid following the pump head energy equation. The fluid, now with more energy, now has a higher pressure and therefore exerts a larger force on your hand. |
I took an axe throwing class last summer. A well thrown axe always revolves a certain number of times when thrown a specific distance with a specific amount of force. By practicing different types of throws from these specific distances, an experienced thrower can make every throw land. Different distances require diff... |
They are designed to be buoyant (lighter than the weight of the water they displace, up to a certain depth), and they pump in seawater to internal ballast tanks to increase their weight until they start to sink. To rise, they pump the ballast water back out again. Former submariner here. Everyone here is on the right t... |
Various reasons: * You need to add/subtract/multiply a lot more commonly. So it makes sense to teach you how to do that by hand. * Add/subtract/multiply have relatively fast methods to get the answer * MAJOR REASON: Square roots are almost always irrational (have unending, unrepeating decimals). It's pointless to try t... |
Your brain creating and processing stimuli that it unknowingly created. It creates images, audio and sensation from nothing and registers them as real, so that you generally believe it to be real. Somewhere along the way, it gets in the way of rational thinking; you know that there aren't people watching you... only wh... |
It allows applications to use components of other existing applications with relative ease. For example, Google Maps is an application. The Google Maps API (Application Programming Interface) allows other applications or websites to pass commands to Google Maps application. So you could have a website that searches for... |
Because then you have to rule that country. The people you invaded generally don't like this and resist. This costs lots of money and lives. In modern times it's much cheaper to just use soft power to get what you want. |
There are a few ways. There are rosetta stones, something written down that contains the same text in more than one language. Using the clues and indicators here they can deconstruct the way the language works and begin to translate. If there is a person that speaks the language. For example if I met a French person, d... |
You (and any sophisticated device) can only hear the sum of all sounds, they all add up. You can still tell them apart if you know they have distinct features. First, a silly example to understand. Imagine some noise is persistent and very loud. Let's associate a number to its intensity, say... 88. It is persistent and... |
Ok - music producer here: Basically, its very difficult to "prove" or show a direct relationship between piracy and any adjustment in the receipt of revenue for the creative industries. Piracy has been around decades, people used to record songs from the radio onto blank cassettes using a "What U hear" loop. Its nothin... |
/u/tsuuga has done a decent summary. I'd like to explain it in a little more detail: With net neutrality in place, your ISP is obliged to provide you with an internet connection, the speed of which is determined by how much you pay for that service. And no matter which website you go to, the speed at which you receive ... |
Back in the 1970s, sort of an urban legend circulated that people in New York City were buying baby alligators as pets, but when they got tired of them they were flushing them down the toilet. The natural assumption was that the alligators would then feed on the ample supply of NY rats and grow, and that full-sized all... |
Your body temperature can deregulate your internal clock. Quoting [PubMed]( URL_0 ): > Experiments investigating timing behaviour in humans under conditions where body temperature was raised or (much more rarely) lowered, dating from 1927 to 1993, were reviewed. These tested the hypothesis that humans possess a tempera... |
Okay. So the way current computers work is that they use electricity to process information. Modern computers only use 2 states. Either no electricity is flowing (0) or there is electricity (1). This might sound complicated but it's pretty easy. Think of a lamp. If you turn the switch off no current is flowing and the ... |
The big money in software is not directly in licensing but in support. Most software products bundle these together in some way. However RedHat and Canonical do not take any money for the development of their product but rather takes money on support. Imagine you are the CTO of a big bank. Your company make a lot of mo... |
Firstly, you mean IRS. Understandable since you aren't American. American culture is deeply rooted on opposition to authority and taxation. One of the principle causes for the American Revolution was taxation. In addition, nobody particularly likes paying taxes, but especially the more conservative and libertarian memb... |
The powder exploding creates gases. These gases is what you find in that "tube". However, if we were to shoot a bullet shaped projectile at high speed from a system not producing gases, you would still see a "tube" but it would be just a vacuum. The projectile is pushing away the water really fast, and the water needs ... |
I am surprised at the number of comments that focus on the alpha dog model of behavior which is pretty debunked now. To answer the OP's question, dogs have a lot of non-verbal cues leading up to the actual contact. The rules one learns about approaching dogs (don't approach head-on, don't make forced sustained eye cont... |
You actually can [broom with a broom]( URL_0 ). And of course you can scrub with a brush or straighten your unkempt hair with a comb. Generally speaking, verbs tend to derive from nouns (think of "to comb" as kind of shorthand for "to use a comb"). Much like googling was derived from Google. In the case of a broom the ... |
Depends how fast it switched. We are all currently moving at 1,040 mph (depending on your longitude) on the Earth surface. If the Earth suddenly stopped then we would all be thrown into the air and hit the next solid surface with more than enough force to kill us all. The exception would be people currently in air plan... |
Basically fingerprints are folded over areas of skin that enable the surface area of the skin to be increased dramatically thereby also enabling the sense of touch also to be increased. For more on this - URL_0 |
Closing one's eyes eliminates visual distractions. During search and rescue operations while in a search line, the team leader will conduct a 'SOUNDEX' where everyone, to include the leader, closes their eyes. A designated person will call out, "We are a search and recue team. We are here to help you. Please call out s... |
Not sure if entirely correct or not, but basically, when you remember something, there's a link (or probably many) in your brain that fires and becomes stronger. So, when you don't use it, it doesn't become stronger, then it starts getting weaker, and eventually it becomes so weak that it's extremely difficult to use a... |
They don't all look the same. They just don't look human enough for your human brain to pick out the differences. Because our brain is practiced at differing between humans, and didn't give much of a fuck about elephants. (Facial recognition is a pretty big deal, and can actually break down from brain damage leading to... |
Different batteries behave differently. Your 9 year old LG is probably using a low-discharge NiMH battery, which keeps its charge better. Your iPhone is using a Li-ion battery, which self-discharges more quickly. However, it shouldn't be dead in two weeks. I have iPhones that I haven't powered in 6 months that still ha... |
I'll give you a quick example, as I recently released a game on mobile, a platform where you're particularly constrained on resources. There's other kinds of optimizations, especially ones that are much more "lower level", but this is one example that came to mind. In my game, there's an effect where you can freeze an ... |
Short answer: Entropy ELI5 answer: Everything is made up of energy. Light, air, dogs, cats: all different arrangements of energy. One of the rules of energy is that is naturally moves to the lowest form of energy possible, like how water rolls down a hill until it reaches the ocean. If you think about a piece of paper,... |
When the cell phone communicates with the base station, it shares the same frequency with a lot of other devices. The way that works is that each device is allocated time slots during which it communicates with the base station, so it sends data for a short period of time, and then it has to wait a while until it gets ... |
Being able to charge content providers extra for preferential treatment means more profit for ISPs. They have no incentive *not* to fight against neutrality. It's not recurring, but rather, one ongoing debate. It has never had a "resolution," and likely will not for some years, until all national governments have made ... |
It is coming: * September 2015 AUDI Wireless Charging(AWC) presented a 3.6 kW inductive charger during the 66th International Motor Show (IAA) 2015. * September 17, 2015 Bombardier-Transportation PRIMOVE presented a 3.6 kW Charger for cars, which was developed at Site in Mannheim Germany. * Transport for London has int... |
Well, at that point it's no longer a radio antenna; it's become something else. I mean, you can do this, but then it's a lamp. > I'm not talking about heating up an antenna so much that it glows; Yeah, you are. Electromagnetic radiation at 500 terahertz frequency is sort of a yellow-orange color. Radio is the same sort... |
Yes, if you somehow weigh the ice down to totally submerge it then the water level would drop as the ice melts. But if you just throw some ice cubes in a glass of water then they'll float, and won't be totally submerged. Obviously, if it were totally submerged. But, ice floating on the surface ISN'T totally submerged. ... |
The economy was improving before the election. And it's still improving. Presidents get credit for economic things that they didn't do. Presidents get blame for economic things that are not their fault. It's how the job works. Economics depends on many things, and who's president is only a tiny factor. Republican white... |
The first signal your brain gets upon sensing a temperature is, "Hey! There is a temperature over here." You need to examine the temperature to determine its nature. The thing you feel is neither hot or cold, but the preamble to temperature. I don't remember the exact temperatures, but after a certain degree our body d... |
scientists tested whether or not coffee grounds could be used to filter lead out of water. they found some interesting things out, firstly if more coffee grounds are being used more lead is removed from the water. Secondly neither water temperature nor bean type have any effect on the amount of lead removed. If the cof... |
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