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how do wireless connections really work? | In short, in the late 1800's James Maxwell, amazingly without having to observe anything and with pure mathematics showed the existence of electromagnetic waves otherwise known as radio waves. Shortly after, Heinrich Hertz proved him correct with real life observations. |
Why is Tai Lopez considered a scum bag for his "knowledge" videos? | The popular YouTube channel H3H3 made [this video] describing it really well. Essentially, his "motivational" videos are clearly disingenuous and fake. This, tacked on to his annoying voice and arrogant attitude, makes him pretty fuckin\' scummy', "Because his whole 67 step program is bullshit, and he knows it. Also, n... |
How do civil engineers calculate how much weight a bridge can hold? | There's a class in college called "statics" and "dynamics". Where you learn about how much weight various materials can support and what happens if the weight is applied at an angle and how you can add support with cables and suchThere are agreed-upon values for how much force materials can withstand. You basically tak... |
What makes wholesome memes as funny, despite them being very boring at face value? | A big factor of comedy is the unexpected. When you get so used to edgy jokes the opposite will throw you off and are more likely to find it funny. |
Why do we have different punishments for murder and attempted murder? | Because we decided that actually ending someone's life is worse than not ending their life. You could rephrase the question as "Why do we have different punishments for assault and attempted murder? Why do we punish the criminal because their victim had a weak skull and it nearly gave out totally?" |
Is countries printing more money a good sign or a bad one? Why? | Along with things like adjusting interest rates and taxes, printing more or less money is one of the things a government can do to steer their country's economy. So your question is a bit like "Is a car driver applying the brakes a good sign or a bad one?". Depends on the situation. It's something you normally do a bit... |
If Gandalf knew Bilbo has the ring, why did he let him keep it? | He didn't know it was The One Ring - it was thought to be destroyed. In The Hobbit the ring was nothing special , and in the Lord of the Rings books it took Gandalf 17 years from Bilbo's farewell party to discover that it was in fact Sauron's ring. |
Why newlyweds should get blood tests | I'm sure someone can explain this better than I can, but its basically to see if they can have children and what their children's immunities and what not would closely correlate too. Again I'm sure someone can explain this better than I, but it has more to do with the children they might have than an aids test, althoug... |
What happens when we swallow our own blood? | You will expel it like anything else you eat. But the average human can only consume a little over a pint of blood before you get sick. Don't puke you will rip your stiches lol |
If heat sanitises, why can getting a burn cause an infection? | Burning leads to an open wound. Your skin protects you from nasty things entering through your flesh, so if it's burned off it can no longer protect you.From what I can recall, the heat also kills all the good bacteria. Essentially, you’re left with an exposed wound that doesn’t heal because of how much damage is actua... |
why do we bruise? | A bruise is caused by tiny blood vessels called capillaries breaking and allowing blood to leak into the surrounding tissue. This happens because we aren't invincible. |
Why do different regions have different tasting water? | Different mineral content in the source water will change the taste. What do you mean by mess up science experiments though? Any serious science experiments will use distilled water to remove the minerals, while most high school or lower science experiments shouldn’t be too dependent on mineral content/care about conta... |
How do I create shirts based on existing properties without getting in trouble for copyright infringement? | You either don't do it, or change the source enough that you can claim it's a parody. Selling merchandise using copyrighted characters you do not own is an incredibly clear violation, and there isn't a court in the country that would rule in your favor. |
Why does water bother our eyes so much? | This is dependent on the source obviously, but most water is not "clean", meaning it has particles of other things in it. Water in outdoor environments can have contaminants from farm runoff, dirt, algae, etc. Pool water can have chlorine, bromine, and salts that can cause irritation, and virtually all water, from taps... |
Why is it that Asians who come to America not knowing English do better, within a few years , than most Americans who lived here their whole life? | because the Asian immigrants that come here, at least the highly visible ones to mainstream american society, tend to be wealthy, highly educated, and highly motivated. If you compare them to the broad swathe of the American populace, then yeah, they seem to be doing better. If you compare them to American born people ... |
Why do boobs from the 60's/70's look so much different than present day boobs? | As someone who has seen thirty year of boobs, the boobs themselves don't change. It is the boobs you see that do. I am assuming you are talking about the boobs you see in movies and on websites. Back in the 60's and 70's what a filmmaker saw as a perfect set of boobs was different than what you would see as a perfect s... |
Why do mosquitoes prefer one person's blood over another? | Mosquitos prefer: * [Type O Blood]. On the same note, most people secrete chemical signals through their skin that indicates blood type, but about 15% do not, so naturally mosquitos prefer the 85%. * [People who exhale high levels of Carbon Dioxide]. Mosquitos use an organ called a maxillary palp to help detect targets... |
What is the appeal of social networking services such as Snapchat or Instagram? | Snapchat and Instagram both allow text to be added as captions. For the sake of conversations, they have a similar appeal that a Skype video call has over a normal one - seeing the person's face. Instagram is more like a Facebook newsfeed than a conversation tool. It's more to show off meals eaten, clothes bought and p... |
Why do fake phone numbers start with 555? | Because no real phone number start with that prefix. This means shows can use a number without accidentally giving out a real person's number - 8675309.Fun fact, there are valid 555 numbers. For example, area code+555+4141 will get you 411 in that area code. How do I know this? I run a call center auto dialer. Someone ... |
How does it make sense that WhatsApp sold for $16b while Beats only went for $3.2b? | BOTH acquisitions are ridiculously, excessively high. It's unlikely beats is even worth more than a $1.5B or so. Whatsapp, is probably worth maybe a couple billion, haha, maybe, probably not.--- Which doesn't answer your question. So why did they go this high? Because they companies that bought them are throwing money ... |
The Legitimate reasons for using off shore banking. | Let's pretend you are Apple, you have a lot of research and development offices in the US, a bunch of retail locations, maybe a few warehouses and repair centers. Company HQ all in the US. A lot of your main bank accounts are here in the US. However you have a large accounting office in Ireland because of their tax law... |
What is science behind this ? | Circulation mostly. When it's warm, our bodies circulate blood normally, sending oxygen, vitamins, minerals, all the things needed to grow nails. When it's cold, our bodies preserve the heat by lowering circulation to our extremities, i.e fingers, toes Less circulation, less things to make nails with, slower growing na... |
The Salem Witch Trials. | If you want a really good depiction of it I'd say check out the crucible. It is also an allegory for the red scare but it still does justice to the trials themselves.There was suspicions of witches in the town, and people started to be accused. At first people just called witch in order to not be accused themselves, bu... |
Why does the colour black attract and store heat? | You've got it slightly wrong. The reason why an object is even black in the first place is because it absorbs all the light. In other words, the color of an object depends on how it absorbs, reflects and refracts light. When an objects absorbs a lot of light, it will, by definition, be a dark color.White reflects all v... |
Why is death by firing squad so bad? | I would think any experts would be unavailable for comment. Coming up with a best way to die is like debating what kind of dog crap tastes best.I think the anticipation would be the worst. A shot to the heart would cause shock and unconsciousness within seconds. Death would happen within minutes. If no bullet knocked y... |
In the hypothetical Gray Goo doomsday scenario, wouldn't an EMP sort the problem? | If hypothetically we were to create a device that's not a nuke that was capable of generating a large EMP, then it would likely be able to destroy the hypothetical grey goo assuming your hypothetical nanobots worked in any way similarly to modern electronics. But since we have neither nanobots nor EMPs, speculating abo... |
Why is reddit hivemind considered left and not center? | Young people are generally more left leaning, where older people are generally more right leaning. Young people are also more likely to be on an Internet forum such as reddit. |
Why are soft porn books so popular in America? | Are you talking about the so-called "romance novels"? There's not generally a large section at bookstores labeled "soft porn", so I'm not exactly sure what you're asking about. Edit: And if you are talking about "romance novels", yes, [they are very popular], and I suspect that the authors don't get paid particularly w... |
Aside from tradition or belief, what are the benefits/drawbacks to female circumcision? | There are no known health benefits to female circumcision. Drawbacks include recurrent infections, chronic pain, cysts, an inability to get pregnant, complications during childbirth, and fatal bleedingBenefits: None Drawbacks: You're cutting off the clitoris, which severely reduces the pleasure of sex for the majority ... |
So how did cows, chickens and pigs become the standard protein to consume? | Cows are large and don't fight back. They also provide milk daily. Chickens can't fly, and lay eggs. Pigs reproduce FAST, and will eat damn near anything. |
Why are children allowed to agree to a user agreement online but are not allowed to sign contracts without a parent? | They can agree to terms and conditions online, sign contracts, and do all sorts of other stuff, but that doesn't mean its legal or valid for them to do so if challenged in court. A court could throw it out, or enforce the contract, or something in the middle. It starts getting a bit more complicated from there in legal... |
Why are there no navy battleships with multiple large cannons in the US Navy anymore? | Because they're obsolete. They have been replaced by aircraft carriers and guided missile cruisers. Both of which can attack ships and land targets over-the-horizon more effectively than a gigantic artillery on a battleship. |
Why do you gain weight when you quit smoking? | Nicotine is an [appetite suppressant ] , so it follows that people will want to eat more when they stop nicotine. Another side effect of nicotine withdrawal is anxiety, which causes some people to turn to food for comfort. Some people turn to snacking to stave off nicotine cravings as well, because it's a distraction a... |
Why do employers set up their application processes the way they do? | The resume thing is so a bot can scan and look for pertinent information, then, if the application is approved it's forwarded to a real person. |
Did YouTube just update its video player while I was watching a video...? Is that even possible? Windows 10 Pro btw...international law be darned | The player does look different than it did just a few minutes ago when I watched a different video. A simple change like that wouldn't be hard to push out. |
What is the Holy See? And why is it in the UN? | It is essentially the leadership of the Catholic Church, and is responsible for the governance of the church worldwide. It's regarded as a sovereign entity, akin to a nation state. For most of history the Catholic Church has controlled territory, however between 1870 and 1929 it had no territory but nonetheless continu... |
Why are fedoras considered "uncool?" | Layman speculation, but I think it may be because fedoras have started to become synonymous with nerdy kids trying to look cool. *Generally* the nerdy kids who wear them aren't textbook definition "attractive", and they'll often wear fedoras with jeans, t-shirts, and things that fedoras generally don't go with. This pr... |
What the heck is happening with this banana? 0_o | You can't reverse something from being rotten, to edible. The title is misleading. It's not a rotten banana, it's just a little bruised. If I ha to guess, I'd say all he's doing is removing the bruised look of the banana, but the taste and texture of the banana would likely remain the same. Softer and mushier than a mo... |
Why does it feel so much better when another person massages your head as opposed to when you use your own hand to massage your head? | This is based on my own experience, not scientifically-proved. But as someone who loves massaging very much, when massaged by others, I cannot predict which part of my organ is going to be massaged and I feel really pleased. I guess this can also answer why you cannot tickle yourself, as your brain has already expected... |
Has human intelligence changed drastically over time? | There's multiple types of intelligence. Also, if you were to try to debate Socrates, you'd have problems of language and culture, religious and scientific understanding that's developed over 2,000 years. If you just want to know about intelligence, there's something called the Flynn Effect. When we've looked at the res... |
How do spiders walk on walls and pretty much any other surface? | They use the force, specifically the [van der waal force]. Like geckos, the bottom of a spiders foot branches out into ever finer little hairs until they are so fine they are able to interact with the surface they are walking on at a molecular level, loosely bonding with it to the point that they almost become part of ... |
How did the ancient civilizations/kingdoms "die out" | Each civilization died out in a different way. Some slowly and over time, some relatively quickly. It almost always comes to some fundamental flaw in said country's system of government; the Roman Empire fell because they could not supplement their armies, and had to rely on mercenaries, and as you might guess, hiring ... |
How do TV programmes like The Simpsons make money from being aired? | Fox pays the creators of The Simpsons to create 1 or more seasons . They use this money to pay the writers, animators, voice actors, creative staff, and everyone else involved with making the actual show. Fox is paying the creators because a certain number of viewers will watch the show which means that companies are p... |
pushing a car to start it? | If the car is in gear and you're pushing it, then the rotation of the wheels will rotate the drive shaft . If you get the piston shaft rotating, it can help you start the car because it will expand and compress the engine cylinders as if the car were already running. All you need to do is to feed some fuel in and have ... |
What is maximum dynamic pressure, or "max-q" in aerospace engineering? | When a rocket takes off, it has to force its way through the air. If a rocket was launched horizontally , the air resistance would just get higher and higher as the rocket got faster and faster. Rockets don't launch horizontally though. They rise vertically going up in the atmosphere. The higher the rocket goes, the is... |
Why are memory storage options set up on increments based on the power of two (16gb, 32gb, 64gb etc...)? | When you store something in a memory, you have to remember where you saved it, i.e. the index of the starting byte. E.g. you save a file, it is at index 1000. And remember you need to store that index somewhere, so that next time you are looking for yoir your file you can find it. Computer saves the address in memory t... |
Why do Republican candidates want to defund planned parenthood? | 1. Being against abortion is a winning strategy for Republicans wanting other Republicans to vote for them. Planned Parenthood is an abortion provider. 2. Republicans want to control women's sexuality and Planned Parenthood provides basic health care for women by providing birth control advice, contraceptives, cervical... |
why did commanders throughout history fight in the front lines? | Because they were often the the most effective fighting force in the field of battle. Your typical commander was a noble, which meant: * they had ample food and medical care as a child, making them bigger and stronger than most men* they were trained in sword and horse almost from birth* they had the best equipment mon... |
How do screens that you can only see when facing them from straight on work? | Polarizing filters. Think of shining a flashlight beam. It comes off like a cone, right? A polarizing filter only allows certain light rays through. So picture a piece of cardboard with a narrow slit cut in it. Shine the flashlight through that. Only a little bit of the light comes out, straight through. A privacy scre... |
Why do so many of my local (Californian) marijuana dispensaries get shut down if marijuana is legal through a Dr's. Reccomendation? | The state has decreed they are legal, the federal government has not. So the feds can still raid/shut down these dispensariesTwo-part situation. First, marijuana is not legal in California like other states. Because of that, cities can use zoning laws to restrict where it can be sold. Strip clubs, liquor stores and Wal... |
How does percentage grade work in regards to terrain? | It means that for every 100 feet you travel horizontally, you move up 20 feet vertically. The percentage change is the percent increase in elevation as you move horizontallyPercent means "per hundred". So a slope of 20% will rise 20 metres *per hundred metres*. That's very steep, by the way. |
If the human race originated from Africa and spread across the world, how do we all have different complexions and facial features compared to our African counterparts? | Basically, what you have is natural selection producing different traits: for example, if you live in Northern Europe, and you have dark skin, you may not get enough Vitamin D, and you won't live to produce offspring. Thus, in Northern Europe, having paler skin, and less natural protection from Vitamin D production and... |
Why doesn't America, Britain or "the free world" send an army to just take ISIS out? | Let's assume we did this. Who do we target ? How do you tell an ISIS member from a local ? Answer is you can't unless they do something. We could probably enforce martial law but then we are an occupying force in a country that hasn't asked for us. That's a recipe for guerrilla warfare - something these guys are good a... |
Why do you feel like you're burning when in contact with something extremely cold? | The extreme cold is sending your pain receptors into overdrive. At the end of the day tissue death feels horrible whether by heat or cold. Fire is generally much hot than the cold we feel is cold. So the "burning" feeling is not really a literal burning feeling but most associated with extreme heat applied to tissue. |
Why does going into hot tubs make you want to pee? | Looks like it has to do with a change in blood pressure when you get in the tub. The hot water raises your blood pressure which triggers a chemical called atrial natriuretic peptide which directs your kidneys to produce salt which then your body wants to get rid of. So you need to pee. |
Why does it matter when I take medicine ? (day, night, after/before meal) | Some of it's to do with absorption process. Some drugs are designed to be absorbed in the stomach. If you want a drug to break down in your stomach, then it needs to be taken with food so that the stomach is ready to break things down. Food can also help avoid nausea, and can slow down the actual absorption since the f... |
How does investing in a startup work? And how do you make a profit as an investor? | It just depends on the deal you make with the business you are investing in. You could, for example, invest some start up money, and buy a share in the business. you will then make what ever % you decided on of the profits the business makes. So, for example, you invest $10,000 and own 40% of the business and will earn... |
how are plants related to animals? Which evolved first? | A lot of different sorts of life evolved before either plants or animals even existed. At some point way back when, the Tree of Life split into two groups. Group A comprises organisms we now call "Bacteria," while Group B includes everything else: lots of single-celled stuff, algae, plants, fungi, animals, and other ch... |
How do plants that don't have seeds reproduce? | Naturally Roses do reproduce with seeds, but many plants also reproduce vegetatively, this means they can spread through the soil with roots, or over the ground rather than spread through the air. If you take a cutting, many plants can detect that they could grow roots by having contact with soil and not light on one s... |
What did Rick Perry actually do? | He told a person that she should resign. She said, no, she didn't want to resign. He said that if she didn't resign, he would veto all funding to her office. She didn't. He did. He was indicted for using his veto power inappropriately and coercively. |
what does it mean to be a "neckbeard"? | a "neckbeard" is shorthand for the stereotype of the "live in their parents basement"-internet user who is long on obscure knowledge and short on social skills and hygiene. The term itself comes from a particular type of beard, the neckbeard, that most people consider unstylish, but that many people who don't care enou... |
How do we hear where sound comes from? | Several ways. First, we have two ears and the closest one which is pointing toward a sound will perceive it as being slightly louder. There is also a travel time for sound and it will arrive at one ear slightly before the other, and our brains can detect that and translate it to approximate direction. Another factor is... |
Other than going splat, what are some potential health risks to Skydiving? | Similar risks to riding a roller coaster- the excitement could mix poorly with certain health conditions. Heart conditions in particular come to mind- your heart will probably beat like crazy. It's also possible to injure yourself on the landing even with a fully deployed parachute.It is a huge adrenaline rush. I can s... |
Help me understand networking protocols and ports | nitpick -- UDP is a network layer protocol, as it's best-effort. TCP is a transport layer protocol, as orderly delivery is guaranteed. |
Why does Santa Claus go by so many names (St. Nicholas, Kris Kringle, etc)? | Santa Claus is an amalgam of dozens if not hundreds of different mythical/religious characters and a few actual historical figures. As such some of the names of those separate figures carried through to modernity as alternate names for Santa Claus. |
If marriage is a spiritual Union, why does the government offer benefits if there's separation of church/state? | because not all marriages are a spiritual union. My first marriage, when i was more of an atheist, was to another more or less atheist done at city hall with no mention of god. and it was still a marriage. The problem i have with the "spiritual union" claim about marriage is that that is just what SOME people, not all ... |
Why do your fingernails grow so much faster than your toenails? | Partially, it's because of circulation. Your fingertips are generally warmer and get more nutrients than your toes. |
Is there anywhere on the planet that naturally desalinates ocean water besides evaporation and formation of icebergs? | Many living organisms are able to separate water from its solutes on the cellular level through osmosisSea ice is less salty than the water it formed from.Yes. Water evaporating from the ocean leaves its salt behind and produces fresh-water rain. This is the most important kind of natural desalination. Additionally, so... |
How do medically induced coma's work. | The Doctor's essentially give you anesthesia to make you go to sleep and keep you asleep. This is generally done for people who have suffered severe trauma; such as severe burns, several broken bones, head injuries, etc. In order to reduce pain, aid healing and just make everything more smooth. There are many of the sa... |
Why don't PGA professionals repair their divots? | You do see caddies do it occasionally, but frankly it's a waste unless it's the right kind of grass. The proper repair, in any case, is done by the huge groundskeeping crew brought in to care for the course at every tournament.Either because they have caddies, or the people running the tournament take care of that for ... |
How did homo sapiens differ from the Homo species right before modern extant Human Species (i.e. homo sapiens)? | > But which one was right before us in this chain and how did it differ from us i.e. sapiens. Currently *Homo heidelbergensis* holds this position. > How did their body structure differ from us The differences, relatively speaking are very slight. Nothing so drastic as having completely different organs. They are one o... |
Why is the rapist from the front page not waiting in jail for a trial? | I treat 2x posts like that as victimization fanfiction. You could probably post a summary of a lifetime original movie there and get 1000 karma. Not saying this story in particular is fabricated, but it's unverifiable, and some have to be. EDIT: just read the update and I definitely don't believe OP. |
why has California not legalized pot beyond medicinal use? | Some of the most well funded anti-legalization lobbies in the state are sponsored by the legal dispensaries and co-ops. They would hate to have inexpensive, high-quality, locally and responsibly sourced cannabis flood the market and ruin their racket.It was on the ballot in 2010, a non-presidential election year when t... |
how come animals dont know that the tail theyre after is theirs? | I giggle like a child every time I fart and it makes a funny noise. There's no reason, really. Often times younger animals chase their tales, while older ones tend not to. I think it's a playfull quality |
Through the laws of probability, how are no one's fingerprints alike? | It's 11pm and I'm on my second glass of wine, so I can't be bothered to do the math. There are three types of fingerprints: whorl, loop and arch. Most people have 10 fingers, and can have any combination of those three fingerprints. There are also three different ways you can take a fingerprint: flat, slap or roll. Eac... |
how does adding a third polarizing filter allow more light to pass through, not less? | The polarizing filter doesn't only block the wrong-polarized light, but it also forces all the light that passes through it to now be polarized in the direction of the filter. Also as you've noticed, polarizing filters will let through some differently-polarized light depending on *how* different the polarization is. 0... |
Why is there an absolute zero, but not really an exact maximum temperature? | At Absolute Zero, molecular motion comes to a complete stop. You can't get lower than that. A maximum amount of molecular motion has yet to be established, so no maximum temperature has yet been determined.. |
How does a particle accelerator work? | Despite what might be said elsewhere magnets have nothing to do with making particles speed up in a particle accelerator. Magnets are used to steer the particles they also serve to focus the particles so that they do not become too spread out from each other and collide with the vacuum pipe they are in. To actually boo... |
If alcohol is considered a drug why do people call it being drunk instead of being high? | I am not sure but I do know that if you go back to at least the 50's calling someone high was synonymous with drunk. Same with "Stoned" but I think over time society takes broader terms for inebriation and stick them to a specific methodWhen I was a kid , my parents called being drunk being high. I always said "high" f... |
Why do men bald more than women? | Levels of DHT. You can actually get a shampoo that contains DHT blockers that hang out on your scalp and in your hair folicles to make it so don't go as bald. |
Some people say calories are all that matter so what would happen to someone if they ate a diet of only 2000 calories of refined sugar? | The "calories are all that matter" is in reference to weight gain/loss. You still need vitamins and minerals in your diet. And fiber is good for keeping your GI track healthy. If you only ate empty calories for an extended amount of time, you would star to suffer various vitamin deficiencies.1. They would be very vitam... |
Why do we yawn when others yawn near us? | A few people think differently about why this happens. One idea is that when we see another person yawn, our brain tells our body that the area we are in has a low oxygen level. Another is the relationship of being tired, we see another person yawn and then become tired as a result. Lastly, there is an idea that yawnin... |
When I get zapped/electrocuted for a fraction of a second, but feel the tingle for much longer, what is happening? | Shock can result in muscular spasms and tissue death from overheating, both of which can result in physical sensation. Somewhat unrelated, but 'electrocution' is actually a portmanteau of electric and execution, and refers explicitly to a fatal scenario, a non-lethal experience would be more properly called an electric... |
Why do people hate to agree with people they don't like? | Because agreeing with someone you don't like might imply that you 've incorrectly evaluated the person. This can feel threatening to some people who will then choose to stick to their previous opinion; that removes the feeling of threat, it keeps things "consistent". People sometimes prefer to invalidate whatever made ... |
What's with all the hype with Raspberry Pi? | it's a charitable organization that makes a barebones computer that is the size of a deck of cards, yet has the power and capabilities or processing and outputting 1080p video all for $35. What's not to like? |
Why is NASA using the Delta IV Heavy instead of building more Saturn V's? | Actually, NASA is redeveloping the Saturn V AS WE SPEAK. [Dynetics has a contract] to redevelop the Saturn's F1 rocket engine, now reclassified the F1-A, into the new F1-B. They 've taken the original schematics, and even disassembled and 3D scanned a few remaining engines from storage. The original F1-A had some +5k p... |
How does the FCC choose which words/phrases to censor? | > Comedy Central The FCC has zero control over content on Comedy Central. They only have control of content for over the air broadcasts NOT cable. The network's own censors aka "standard's and practices" decide what they want to censor, generally to appease their sponsors/advertisers |
Why is the common cold worse in the morning and at night but usually milder during the day? | There are a couple reasons: 1. Gravity- When you're standing during the day gravity is pulling the mucus down and it gets cleared away by things like coughing. At night, you're lying down more and gravity causes mucus to pool towards the back of our throats and it's harder to get rid of that way. We then wake up with t... |
What is the difference between Drive, D2, and D3 in a car and how should they each be used? | Gears on a car are tricky. The power of the engine is the same regardless of what gear you are in, the difference is power vs speed. Think of a bicycle. At one far end of the spectrum there's low gear where you peddle and peddle but never really go anywhere. It's mostly used for going up hills. Then there's high gear, ... |
In American football the ball is held in a players' hand for most of the game, then why is it called football? | All the codes of football - American, association , Australian, rugby, Gaelic - descend from the same sport . Well, it wasn't really a single sport, it was a game that'd have slightly different rules from town to town, some which allowed people to carry the ball and others that didn't, but the idea was roughly the same... |
When rock climbers use the hardware to climb and they nail them into the side of the mountain, are they retrievable or lost after use? | There are three main types of hardware used. **Pitons** are hammered in, and left there. You can't re-use old pitons that you find, because they suck, and may have started to work their way out from freeze-thaw. In any case, almost nobody uses them anymore. **Bolts** are permanent fixtures. They are re-useable, but the... |
Why do some viruses look like robots? | Are you talking about the ones that look like spiders? The "claws" attach them to the cell and the "head" contains the infectious nucleic acids. The "mouth" injects the infectious material into the cellViruses are very small so small that their shells are made up of a reasonably small number of protein building blocks ... |
How does water get from its source to coming out of my taps? | Here is how it is done where I'm from. Pumps pull water from wells around the region, we have about 10 to serve a population of about 18k. As the water comes out of the wells it is mixed with chlorine to help clean it. The pressure from these pumps feeds the water to what's called a Lift Station. These lift stations ar... |
How do peepholes work? | So basically the peephole is fitted with a special type of convex lens, some call it a fish hook lens that takes a wide view on one side and condenses it. By nature a lens takes light rays and creates a fake image or real image depending on distance and other factors. The reason you are able to see clearly is because t... |
On some electronic devices, it will say something like "16GB of internal, expandable to 32GB" with a microSD card. Why the cap? | It's likely because they didn't bother writing the software to index to that much memory. Meaning, on any given operating system it takes some thought as to how to store things in memory and get them back our again. It's a bit more complicated than just putting someone in a bin and getting it back out. It's likely that... |
Why is CNN perceived as a bad network? | CNN has a 24-hour news channel, and in order to get the ratings necessary to justify its existence, it has to do more than just repeat major headlines every ten minutes. So they try to find whatever they can to fill time and entice people to tune in multiple times a day for more than just a few minutes. What this means... |
Why do voices and some instruments vibrato? | Why? Vibrato adds a lot of warmth to a musical note. By very slightly fluctuating your pitch, you are able to include more audio frequencies than just the single note's frequency by itself. So, the note you're projecting sounds a lot louder, warmer, fuller, etc. Also, vibrato is a clever way for many singers to slightl... |
Why does a cold feel worse in the morning when you wake up? | Mucus pooling in your head. Once you're upright it will start to drain out and your symptoms will diminish. Try sleeping on an incline and it may mitigate some of the morning effect.Maybe because you are lying down and the mucus is just sitting in your nose and throat instead of draining to your stomach or out your nos... |
Why does mail polish dry quicker on false nails as opposed to natural nails? | Nail polish dry by the solvent evaporating. The surface should not affect this drying time. I bet if you did a test where you painted a fake and real nail simultaneously you'd find they dried at the same time. |
How to calculate how high will the sea level rise because of global warming... | The Earth is a geoid, not a sphere. Bringing this up means I am telling you that the math is really beyond ELI5. Another way to say it is that the Earth is an oblate spheroid, fat at the middle. The calculation will involve the expansion of the sea water in the oceans as the temperature rises. This is part of the volum... |
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