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The most modern understanding of human evolution/origin? | Not quite. Neanderthals are more of a 'cousin' as it were, as the current evidence suggests that homo sapiens and homo neanderthalensis diverged from a common ancestor some 350k + years ago . Here's a nice [graphic] giving a generalized idea about the current interbreeding hypothesis between modern humans and neanderth... |
why we need Internet service providers. | [If only this question hadn't been asked over and over and over again in this sub.] The last time it was asked was *twenty-one hours ago*.I 've been in network engineering for a long time, basically you can't be a major player, like a mom-n-pop version of Comcast. That takes many buildings full of very specialized equi... |
Why do we need sunscreen? | If you're white, your ancestors are from northern Europe where the sun isn't very strong. You could be outside there all day and not need sunscreen. You've probably since moved to somewhere where the sun is stronger. Notice that Native Americans have darker skin; they're adapted to the levels of sun in North America. Y... |
How and why did Pokemon win the popularity contest against Digimon? | Digimon is actually still going really strong. It's really popular in Japan.Mainly because Pokemon had a better franchise - I remember sneeking out to buy pokemon cards when I was little and waking up at 4am in the morning just to play pokemon red on my gameboy. Interestingly, i'm currently watching Digimon and I have ... |
Why does mold grow on "dead" fruits but not on the ones still on the tree? | It does grow on the ones still on the plant. You just don't see it as much, because you have a lot more experience with picked fruits than you do with those still on the plants. Go strawberry picking towards the end of the season sometime ;)", 'Unless I'm mistaken, mold actually DOES grow on some fruits "on the tree", ... |
Why do we have hair on our knuckles? | That's a recessive trait called mid-digital hair. Anyone if I'm wrong please correct me, it's been almost 10 years since I learned about it. |
Why conspiracy theorists think the Moon Landing was a hoax | It all goes back to a guy named Bill Kaysing who wrote a book entitled *We Never Went to the Moon*. This was in 1974. There is a sizeable amount of people who don't trust the government, and some of these people will believe any credible-sounding conspiracy that proposes the government is hiding something big. Before t... |
how a gas station can charge upwards of 40 cents more per gallon of gas than their competitors, and still survive? | Because there are people driving past station A who need gas and have no idea station B down the street is so much cheaper. Hasn't that happened to all of us at one point? You fill up only to drive past another station later the day that's significantly cheaper? |
how companies with employee stock purchase plans avoid insider trading. | I worked for a large American corporation at retail level and we could do employee stock purchasing plans. Although we weren't involved in any way, shape or form at a decision making level we still had access to a limited amount of insider information. We were only able to purchase and sell our stock at set intervals t... |
how birds know how to build a nest? | Birds didn't just decide one day to build nests. Natural Selection favors organisms that survive to have offspring. At some point in time, some birds built better, higher nests, lower nests, or no nests and passed this onto their offspring. Depending on envirimental predators, different nesting habbits are favorable. T... |
why are cars with manual transmissions so predominant in Europe but increasingly difficult to find in the US? | There's not a big market for them anymore. The US has more drivers, we sit in more traffic, roads are more wide-open, and we drive further. Modern technology negates the gas mileage difference in auto and manual transmissions. Plus, they're just not making as many cars with manuals anymore. I love driving stick, but it... |
how so many African countries got so politically screwed up? | There are a lot of reasons, but I'll address two of the more popular theories for lack of development, those being **colonialism** and the **resource trap**. **Colonialism**: Between 1880 and 1915 roughly, countries scrambled to make parts of Africa their colonies. This was known as the Scramble for Africa. Eventually,... |
Why do my university professors act like verbal escape artists when I ask them some questions? | Because that's what office hours are for. They need to finish a lecture and only have a certain amount of time. Get your detailed answers during office hours.Well it kind of depends what you're studying. But in general, complex subjects resist simplicity. What I mean is, simple questions rarely have simple answers. The... |
Why when its 70 degrees outside, you feel warm, but when your in water that is 70 degrees, you get cold? | The feeling of hot or cold isn't directly associated with temperature. Basically, your body needs to release a certain ammount of heat to the environment. Two things affect the rate at which this happens: the temperature of your surroundings AND the thermal conductivity of your surroundings. Air is a terrible thermal c... |
Why do you bleed out fast from a wounded artery, but can survive a severed leg? | My friend who is an EMT says that the severe drop in blood pressure in that limb causes the valves to that appendage to slam shut. He even told me that it's highly unrealistic in movies where someone gets a limb severed and the blood spurts profusely.It depends on how soon medical treatment is applied. Being an infantr... |
Why can we see certain stars in our peripheral vision, but then when we look directly at them we can no longer see them? | The distribution of light sensitive cells in your eyes changes from the center to the outside. In the center, it's mostly color sensitive cone cells while on the edges of your vision, it's almost entirely low light sensitive rods. Rods are better at picking up contrast and low amounts of light, so the center of your ey... |
will there ever be another king of England? | There hasn't been a King or Queen of England since the union between England and Scotland. There is a King or Queen of the United Kingdom of Great Britain and Northern Ireland and her commonwealth. Referring to the King of England is like calling Barack Obama the president of Illinois.Nope! The monarchy of england no l... |
can someone ELI5 why it is often said that schools kill creativity/thinking out side the box/thinking differently and if there is a way to counteract this in adulthood? | Most of school is about memorizing facts and procedures. The teacher is trying to get a large number of students through to the next grade. They need to cover specific topics, so imagine that there is a large checklist that they have to complete by the end of the year. I recently took a course on adult education. The t... |
What do soldiers of peaceful countries do in their average day? | Denmark has had troops in Afghanistan , Kosovo, the Balkans, Iraq , Libya, the Gulf of Aden, Syria and Mali since 1991. With a total of about 70,000 shipping out. 70,000 people represents 1.25% of our population, although some of those 70,000 are people who have been shipped out multiple times. Norway has also had troo... |
Can someone please help me understand why the International Energy Agency as well as the authors of these articles want the future price of oil to be higher? | I don't know jack But I remember hearing that a lot of producers were going out of business because they weren't being profitable. I assume that's bad long-term. Also, oil producers are probably greedy as ever and they don't care who else makes money or not, as long as they get theirs. There's probably a lot going on b... |
Stem cells: why don't we just let them multiply and keep taking from the group for a steady source? | We certainly do grow them, and there are public supply banks of them from people who choose to donate them. A popular time to snatch them is straight out of a newborn's umbilical cord, which is otherwise thrown out with the bath water. A major reason that individuals choose private stem cell banking for their children ... |
Why do some fabrics become see through when wet | Shirts are made of thin cords of different materials, such as cotton. The materials used differ in thickness, density, strength, and so on. When thin, fluffy cords get wet, they shrink in size. Think about wetting a cotton ball. It condenses. The same process is happening, just on a much smaller scale. When the cords c... |
Whats the point of http:// and www. if I can go to any website without typing it? | You can do so now but this wasn't always the case. http refers to a protocol on how webpages is delivered from servers to your browser. www signifies that you want to go on the internet instead of one of the servers within your intranet. Initially, webservers were created to serve only the intranet. Here you typed in h... |
Why do some people grow their pinky fingernail out while maintaining short nails elsewhere? | For a few, it's a little scoop that they can use to scoop up just the right amount of inhaled drug like cocaine. But for many parts of the world, it's a cultural symbol of high social status. A long clean fingernail meant you were not part of the working class stuffing rice plants into paddies all day. Some cultures ha... |
Why are shark teeth I find on the beach always black, but when they are in a living shark they are white? Why are there no white shark teeth on the beach? | I once found a white one in florida. After a few month it started being very flimsy. After a few years it almost turned into powder. I know this comments doesn't add much but I was surprised since I have never found a fossilizes one.Just to add to the body of your question, the jaws in the museum or on the fishermans w... |
Of all places to settle, why did the Vikings choose such cold and unfertile land? (Iceland, Greenland, Scandinavia, etc) | Iceland was thickly forested when it was settled. It was then clearcut for timber and overgrazed with livestock. Without trees or even substantial grass, the topsoil readily eroded under wind and flooding. So the desolate, almost lunar landscape of parts of Iceland isn't purely geological; it's the result of human acti... |
Why am I getting carded for OTC meds like Nyquil and Acetaminophen? | Because certain otc meds have pseudoephedrine, which is a primary ingredient when making meth. They card people to make sure you're not going around town buying a box here and there. |
How does an equalizer work? Which "bars" do what and what is a good option for electronic music, rock music or classical music? | Each bar corresponds to a frequency range, so manipulating these cuts or boosts said ranges. For example, anything below 60hz would be sub bass, and at 6000hz you would find the hihat etc. Unless you are mixing a track you should not mess with these on your stereo/walkman/tv: chances are the track is professionally eng... |
parental advisory labels on CDs | One might have snuck through the censors, or maybe that artist doesn't have a reputation yet. Thank Tipper Gore for those labels. |
How are Subtitles created with errors? | Assuming we're talking about [closed captions] here, not e.g. the subtitles on foreign films. From my experience in the industry, captions are generated pretty late in the production process, and productions treat them as just a technical thing they need before a distributor will pay them. Meanwhile, the distributors t... |
How is the environment affected if we draw enough energy from the sun through solar power for the entire planet? | Actually no, because all the energy that gets turned into electricity eventually is converted back into heat as we run our lights and machines. Energy is conserved: what goes into human society must eventually come back out. The net effect is probably a slight warming, because solar panels are darker in color than most... |
How are homeowners insurance companies allowed to drop you for making two small claims after being with them for 8 years? | > If they don't want to work with you they don't have to. The laws totally allow for this, and that is the reason they are allowed to drop you. The reason that they do, which is what I assumed you were asking, is more complicated. You've been with your homeowner's insurance for 8 years and have made 2 claims, so 1 clai... |
Why Don't Airplanes Have Interior Cameras Like Buses, Trains, Etc? | First of all, what are you trying to protect/prevent? If it's an argument between the crew and a passenger, why would the airlines invest in something so trivial? Do passengers demand to be recorded? Do you want to board a plane knowing *everything you say and do is being recorded by a private industry* that will likel... |
What is that sharp, cold smell when water gets in my nose? Where does it come from? | I get that smell when I hit my head hard enough on something. Or sometimes when I jump from a high enough height I'll get that smell/nasal sensation. No idea why. |
How stocks affect a company, and how the numbers of shares work | A company goes through an initial public offering This means they start to sell shares to the general public. Selling shares to the public is a way to raise money. Those that buy the shares are now the owners of the company, the first time someone buys a stock they are buying it from the company, after that its buying ... |
Why are cashews so much more expensive then peanuts? | Where I live, Vietnam, our delicious cashews are salted with the tears of drug addicts, prostitutes, and folks with political opinions that are just plain wrong. _URL_0_ _URL_1_ So basically, cashews require torture, peanuts don't. Enjoy.So why are pinenuts so much more expensive than cashews? |
Why do our noses run when we are outside when it is really cold? | Ahoy, matey! Yer not alone in askin', and kind strangers have explained: 1. [ELI5 Why does cold weather make your nose run? - 17 comments]1. [ELI5: Why do our noses run when we are cold - 48 comments]1. [ELI5:Why does cold weather make my nose run when it seems to make sense that hot weather would do the same by meltin... |
Why do we typically only raise one type of animal per field? | Because you don't just raise animals to raise them. They're either raised to be butchered or for other means. Having all of one type of animal means you can limit your operations to focus on one task, which means less cost of operation which means higher profits. |
How do plants mimic each other if they can't see? | They don't actually mimic in the way that a comedian might mimic another voice. They happen to have survived by randomly mutating in a way that has them appear to look like another plant . This is a great example of the magic of natural selection. |
What does 'raising awareness' for a disease actually do? | It often helps people researching the disease get funding. If no one knows about, or cares about, a disease it is unlikely that people administering grants are going to choose that disease research to get funded. If everyone on the internet is talking about a disease, it's much more likely that those same administrator... |
Why do some people with type 1 diabetes need to eat sugar if their pancreas still releases glucagon which releases sugar back into the body? | Yes, glucagon helps to release stored glycogen from the liver to help raise blood sugar levels. But where do you think the glycogen comes from? It's predominately made by converting glucose through a process that is stimulated by the release of *drum roll* Insulin! So guess what happens when your pancreas can't produce... |
Why are some people who deny Sandy Hook happened the way it did? | Because they're subclinically delusional and paranoid. Conspiracy theorists generally feel the same way about any major event no matter how much evidence exists to counter their stance on the subject. These are the same people who think that the twin tower attacks were a government ploy, the moon landing was a hoax, an... |
If dogs have such a good sense of smell, why do they constantly sniff their butts? | Dogs have anal glands, which release a pungent smell when they defecate. Dogs use this scent to mark territory. When dogs sniff each others butts it's because they are trying to catch the scent from the anal glands directly. |
What is cold, why and how do particles get 'cold' | To understand cold you need to understand temperature. So, what's temperature? *It's moving particles. Simple as that, the harder they move, the hotter something gets.* So what's cold? *Particles moving slowly.* --- Problems with this? Cold is relative. If you come from the beach at a hot summer day and someone then dr... |
Why do some people in mental institutions refuse to take their medication? | It's not just people in mental institutions. Medications have side effects that often leave the person feeling disconnected and cloudy headed, and not in an intoxicating way. This can lead to personality suppression. So if you've got someone bothered by a mental condition then they're likely not comfortable to begin wi... |
How operating a semi truck transmission differs to that of a manual car. | First off. The only transmissions I've heard of and learned about is a 5speed transmission, with an auxiliary gearbox of 2 3 4 gears. I'm a mechanic not a driver. Due to the gear reduction redundancy in lower gears they are so similar thus why you lose the speeds. A clutch brake is used only to stop the main shaft of t... |
How does it work when you win a lifetime supply of something? | Once they've given you what they think is a lifetime supply, they come kill you ", 'I 've always wanted to know this too! The way I 've pictured it: option 1: You get a Fed Ex shipment of 2 tons of toilet paper or whatever the week after the game show. From then on you have a room in your house designated as "the toile... |
Why does lightning suddenly increase brightness when it reaches the ground? | When lightning contacts the ground, a sudden burst of energy is transferred. That sudden burst of energy is so violent, it heats up the air to thousands of degrees, causing it to shine brightly for a split second. That incredible heat also causes it to expand extremely quickly, causing a sonic boom, what you and I woul... |
How does instating a new currency stop hyperinflation? | In and of itself, it won't. However, it is usually going to part of an overall change in currency policy to address hyperinflation, like pegging the new currency to the US dollar or the euro. Also, installing a new currency is complicated and expensive. Rampant hyperinflation is the worst possible time to try this, so ... |
Why People still use a dealer/Middleman ? | Because many manufacturers aren't interested in doing retail, or don't have the resources or experience to do it properly. Retail is very difficult and competitive, and companies do better when they focus on their core competence rather than trying to dabble in everything. For the same reason that retailers usually don... |
Traditionally we think of batteries as having a very short life span. How are the new Battery power plants like the one in Australia by Elon Musk going to last a profitable amount of time? | Cheap consumer batteries are made to be disposable. Even rechargeable ones. Average AA rechargeable lasts a few hundred recharge cycles Industrial batteries last thousands of full discharge recharge cycles. And a grid system wouldn't be charging to max and discharging completely every day. |
Why do insects not see spider webs and fly into them? | We can't actually see most spider webs, we only see them when light is reflected off them at an angle or when water or dust has settled on them. Most of the time they are invisible to us as well, if you have ever seen a grassy field early on a summer morning when it is covered with dew it is almost completely covered i... |
when disarming a bomb ,why don't they put a bowl upside down on the bomb and suck all the air inside , so there be no ignition and/or the bomb won't explode correctly ? | Most explosives don't need any air. Everything from common gunpowder to C4 contains it's own oxidizer. |
How is it possible for a NASA spacecraft to be sending photos back from Pluto? | It's sends them over radio waves -- not completely unlike how you would send a picture on your phone to someone else. Pluto isn't lightyears away from us. It's about four light-hours -- so the signal takes about four hours to get to us after it's sent.Its using radio waves, radio waves travel at the speed of light whic... |
Why are so many people scared of spiders? | There wasn't much antivenom available in prehistoric times. Being afraid of something that could make you sick or kill you kept people alive. Those who weren't afraid had a higher chance of being bitten. |
What is the process of a traditional wedding? | It's better to ask the bride/whoever's planning the wedding than reddit. We have no idea what your sister is going to do for her wedding. |
Why does it seem like the worse for you the food is the better it tastes? | In short, we can use and store excess fats and sugars, but extra vitamins and minerals are generally wasted. Nutrients are typical classified as either macronutrients or micronutrients. Macronutrients can be converted to energy for immediate use or body fat to be stored for long periods of time. Micronutrients include ... |
What is the difference between the army and the marines? | The U.S millitary consists of different branches. The Army, Navy, Marines, Airforce, and Coast guard . Each has its own mission and standard operating procedures. The Marines are known for their infantry and usual first response in a time of war. They do have other millitary ocupational specialties like firefighter..In... |
How does one survive an atomic blast? | Most survivors of the Japanese bombings were on the outskirts of the city, or suffered from the fallout after the bombing. Keep in mind, the bombs in WWII were quite small compared to the examples of 30 years later. They didn't have nearly the destructive force that the bombs used in Cold War movie strips did. |
Why is mandatory drug testing for welfare recipients considered a taboo/right wing nutjob idea? | While I am very much for drug testing for welfare recipients I always think it's important to understand the other side of the argument. The basic idea is that just because someone is addicted to drugs is no reason to allow them to starve to death. Moreover, people deprived of welfare aren't going to make the decision ... |
How can drugs like PCP or bath salts make you a cannibal? | First we need to talk about what psychosis is. Psychosis is what happens to a person when they can't tell the difference between imaginary things and real things. There are lots of reasons why a person can suddenly experience psychosis. Sometimes people's brains are put together differently than other peoples and the t... |
Why do animals like parrots and tortoises' live so long | There are likely many factors, but here's what I understand: Free radicals are bad. What does this have to do with parrots and tortoises? Well, when you do almost anything requiring energy, sometimes free radicals are made. These are highly reactive oxygen atoms that can damage cells and DNA. Some creatures, like the t... |
Why are tank barrels not rifled when almost all other guns are | Some are rifled. Rifling depends entirely on what sort of ammunition is expected to be used. IIRC, the current sexy in tank ammunition is armor piercing sabot fin stabilized. It's basically a skinny dart with fins on it to keep it stable in flight encased in plastic. Since there is no need to spin, and the rifling coul... |
Why do some people binge eat when they're stressed, while others lose their appetite entirely? | When I'm stressed or upset, I have to force myself to eat. I don't know how that would be thought of as evolutionary advantageous, but food literally becomes as desirable as eating sand.Another thing is how people self-diagnose "stress". What someone calls "stress" could be severe boredom and frustration with a lack of... |
Why snakes don't bite people who hold them by the tail. | I can't speak for what's going on in the vid, but I was taught to always hold a snake firmly right behind its head, to prevent it from curling around and biting you. |
what happens when serious offences are committed by children below the age of criminal responsibility? | This depends hugely on which country you're in! And potentially on the serious-seriousness of the crime. E.g. in the UK our age is 10, and it was actually lowered from 14 because of the James Bulger case. The two perpetrators were 11 iirc and the age was dropped so they could be charged with murder.If you are below the... |
Why do the extra minutes of sleep after waking up in the morning feel amazing? | I've found that if I wake up an hour early, that extra sleep time is also when I dream most vividly. |
What exactly has President Obama done to make people hate him? | I could name two distinct perceived failures/fundamental disagreements in governance: 1) Health Care Reform - people are hotly divided on the issue of whether a citizen of this country can be forced into buying private health insurance. 2) Failure to Pass a Budget - Democrats controlled both houses of congress with a d... |
How do we know we are in a spiral shaped galaxy? | Stand in the middle of a room with a long measuring stick. Measure the distance between you and all the objects. Now you have the information to draw a fairly accurate overhead map of the room, even though you didn't directly look from overhead. So do this with the galaxy, measure the distance from Earth to a whole bun... |
Why is the skin on our arms and legs generally clear and beautiful, while our faces and back tend to get acne and clogged pores? | Well first of all people can and do get spots all over the body. To answer your question, the face has more oil in the skin than other parts of your body which can clog the pores and lead to spots. Why faces are more oily, I don't know.The skin on your face, back, and chest have more sebaceous glands. These glands prod... |
Why is it so common for famous people to have been married multiple times? | When you take money out of the equation, getting divorced and remarried is a much easier choice. They also give up faster on relationships than middle class people because they're used to changing lifestyles, moving to new places and in general, they just don't have the same kind of attachments to a town, community or ... |
Why does the Forbes rich list exclude certain billionaires? | Because lists like the Forbes rich list exists as entertainment for the non-rich. It has no purpose other than that, so there's no particular incentive for it to be complete, or even accurate.Interesting question. While he is not included on this Forbes list of billionaires: _URL_1_ he is on this Forbes list: _URL_0_',... |
In regards to plumbing and pipes, do different pipes go to different places?Like the sink and shower vs the toilet and washing machine? | In terms of waste, probably not. In terms of supply, in some houses the supply to different parts of the house is separated from other parts. Some parts might be fed from a tank, and other parts from the mains supply. Or it might all be supplied from the same pipe. There's no rule, and every house is different.* Sinks ... |
How come my mid range gaming PC can play some very demanding games on the highest settings and some what appears to be "less demanding" games on low-mid settings and still have frame-rate issues? | **This isn't particular a ELI5 explanation, but I hope people can understand it** There are multiple possibilities: 1. Bad optimization. That means, that the ressources aren't properly used 2. They use different parts of your system. For example if game A needs 1 GB of ram and game B needs 4 GB of ram. Game A will run ... |
Why isn’t every bone in our body made to be as strong as our femur? | The femur is the largest bone in the body. Making all the bones that big would not work. Try to type with your knees, and you'll immediately see the benefit of those tiny, breakable, finger bones. |
the math behind determining pot equity in Texas Hold 'Em | Basically your equity in the pot is the % chance that you will win the pot at the end of the hand multiplied by the size of the pot. If you have pocket aces against pocket kings and you are all in for a $100 pot, your equity is around 80% of $100, or $80. If you have N opponents against you, the critical pot equity is ... |
the differences between the (American) Green Party and Justice Party. | Yeah, I have already read those articles obviously. I know the Justice party is newer but I still can't seem to find anything the 2 parties really disagree on. |
What makes us get a 'Stitch' in our sides when we run too quickly? | I get a stitch if I drink a lot of water before I run. It's probably a coincidence but it happens every time, so an interesting coincidence.Though the answer is already there; SciShow actually has a good video on that! I will link it in an edit in just a second. _URL_0_', "I am not 100% certain I understand what a stit... |
How does Flint, MI still not have clean water? | Not necessarily an answer to this question but I wanted to chime in. I was born and raised in Flint Town. Mom worked downtown at UM Flint and I went there for a few years. As far back as the 90s she would say that everyone in her office, at Water Street Pavillon, knew they were pulling water from the river. They stoppe... |
Why are most salt water fish able to be eaten raw/uncooked while freshwater fish cannot be? | Parasitic well-being. Parasites from salt-water fish don't do well in us, but fresh-water fish do excellent in us; many are specifically evolved to use us as a host. |
Why do people consider male circumcision horrible? | I'm not on a particular side of this debate, but the most basic objection is that there isn't really a good reason for people to do it. If it weren't for the existing social norm, are there good reasons to permanently alter the physical appearance of a child's genitals? I honestly don't know of any. |
when I'm really depressed, what causes the physical feeling in my chest that feels like a sad heart? | This post really couldn't come at a better time, definitely needed this. My chest and stomach have been feeling like they are in knots, so much anxiety and feeling of loss > _ <", 'Not the answer to your question, but reminds of "broken heart syndrome" -- _URL_2_I used to get pain in my right thumb while depressed. But... |
Why do people care so much about dolphins than other fish? | I can't account for the distinction in caring, but dolphins aren't fish; they're mammals and have hair, bear live young, and female dolphins produce milk. |
What distinguishes light that reflects on a window and light that travels through? | The answer is: random chance, if you're looking at an individual photon. At the scale of individual light particles, quantum mechanics dictates that there's some probability of a given event happening and that game of chance is a fundamental feature of nature. |
Cooking Like I'm Five | I don't think five year olds should be operating stovetop cooking devices, but okay.Why do hot dogs come in packs of 8 while hot dog buns come in packs of 6?Thanks! This is awesome because being able to cook saves money up front and later with health bills yo! |
Why is it that people who are less educated and financially stable seem to have a higher propensity to have more children(and at an earlier rate)? | The birth rate of a country is very dependent on it's education level. In particular the education level of women. There's a significant amount of factors that come in to play as to why that is, but the best ELI5 answer could be that educated individuals have a better knowledge of contraception methods as well as they ... |
What is the thing about hyper loops that keep them from actually being a reality | > What is the thing about hyper loops that keep them from actually being a reality The whole not existing thing is what it really comes down to. We don't have extensive tubes of near vacuum running across the country to desired destinations. We don't have a reliable way to propel a capsule down such tubes which would k... |
Why is Hitchhiking illegal? | Compare 2 situations. A post on a website or message board like craigslist, where rideshares are organized is very similar to something hitchhiking. Similar risks of picking unknown people, or entering an unknown person's vehicle. The difference is, in a ride share, the pick up location would be something like a parkin... |
How are there telescopes that can see so far into outerspace? | Extremely large, well-made optical surfaces with tiny tolerances. Hubble's ~7 foot mirror curvature was originally off by 2 millimeters and they had to design and install an entire second mirror to correct for the sharpness issues. |
the 101 on guitar pickups | I'm going to stick to magnetic guitar pickups as opposed to active guitar pickups Magentic Coil Pickups pick up a change in magnetic flux to induce current and sent it to an amplifier to amplify the sound and play it out of the speaker. What causes this change in the magnetic flux is the vibration of the guitar strings... |
Since oil is 1/3 the price is what was 2 years ago, how come gasoline isn't 1/3 the price? | Inelastic demand - The same amount of gas generally sells, no matter it's price. There is no motivation to pass savings on to the consumer, when the alternative is same # of gallons sold, with higher profits. |
When we say things like "2/3 of all ocean life remains undiscovered," how do we know what we haven't discovered? | I was just watching a video about the discovery of Sedna, and the assumption that there are another 30-90 Sednas out there. Basic idea is Sedna could only have been discovered during its closest approach to the Sun, which is about a 1:60 chance that it happened to be close enough right when we found it . Scientists don... |
Why is the Milo controversy such a big deal? | It does sound like he was abused as a kid which is terrible. The wrong thing is that he basically condoned it. He said stuff like as a gay kid he enjoyed it and it was good training. While his own personal experience and outcomes aren't for me to judge, him being a victim who didn't experience adverse outcomes doesn't ... |
Why does it sting when saltwater gets into our eyes but fish and other marine life can always keep it open? | It depends on how clean the water is. Ocean water has, along with just salt, sand, and more than likely various chemicals and trash. It's actually easier for most people to open their eyes in pure salt water than in, say, chlorinated water.When you go swimming in the ocean its not the saltwater that stings, but rather ... |
What is the difference between Mozart/Beethoven/Bach and I.E. a good Video game Soundtrack. | Complexity, really. There's plenty of fantastic video game music out there, and learning them on guitar is a hobby of mine, but they tend towards one repeating melody of < 1 minute. Some exceptions exists for sure , but take a look at [this video] of Beethoven's ninth. It really helps visualize how much is going on at ... |
Why do women moan when they have sex? | For the record, it's not a female thing. Men moan when they have sex, too. |
If automation ultimately replaces a majority of the workforce, then where will the demand for those goods which are auto-produced come from? Wouldn't automation ensure it's own obsolescence? | If everyone is poor than nobody is poor. Companies can't afford to not sell you things just because they don't need to employ you. I suppose eventually everyone will be living in a style that we currently consider luxurious. |
sometimes I get super-long hairs on random parts of my body. | On a related note, sometimes my hairs grow very closely together. It's only in pairs, mainly on my arms and pubes, and I know it's not just one hair split in two. with this, but I'm already here :P) |
is Telsa Powerwall just a toy for rich people or will it actually save me money (if I go solar) | If you go solar it will save you money. You need a battery when you go solar and this is the cheapest one that isn't Lead Acid. If you don't, it's a toy for rich green folk. They promote the idea that the battery can charge in off hours when electricity is cheaper to give you power at peak hours. This is true but the s... |
Why do some people think university degrees are no longer relevant? | * the recent poor economic conditions have meant fewer jobs for both those with and without degrees* the cost of education has become prohibitively expensive, and does not always justify the increased income you can earn* many degrees outside of engineering and science don't have great employment prospects for people w... |
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