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<|im_start|>user ELI5:If you are paralyzed from the neck down, why do your organs still work? shouldn't your heart, lungs, intestines etc... stop receiving signals from your brain?<|im_end|> <|im_start|>assistant Even though your lungs are organs the way they work is a little different as they require help. The process...
<|im_start|>user ELI5: What is smoke made out of that makes ham and fish taste better?<|im_end|> <|im_start|>assistant Hardwoods (the type used for smoking ham, fish and other foods) are made up mostly of three materials: cellulose, hemicellulose, and lignin. Cellulose and hemicellulose are sugar molecules which, whe...
<|im_start|>user Instead of the Universe expanding, could matter actually be shrinking? Would the same characteristics of the universe not apply? Everything would be moving away from us rapidly, not because space is expanding, but because all matter is actually shrinking while the fabric of space stays the same?<|im_en...
<|im_start|>user CMV: There is an harmful tradition of "graphing by hand" in American math curricula. This is not to say that understanding graphs, translations, and being able to visualize expressions visually are not important skills. They absolutely are and I would never dispute that. I also don't want to confuse gr...
<|im_start|>user ELI5: What happen between Half-life and Half-life 2 ? I read somewhere that HL2 takes place 20 years after HL1, and I know there was some war going on Between the combine and the earth, but that's basically al I know. what's the purpose of City 17? Why is Freeman so important? what's the connection bet...
<|im_start|>user ELI5: What is an "Agile" environment?<|im_end|> <|im_start|>assistant Agile can be summarised very briefly: * Only work on the most important things at any given point in time * Break those things into small bite-sized tasks for individuals to work on autonymously * Catch up for about 10-20 minutes e...
<|im_start|>user ELI5: Why does it seem like some colors look good together and others clash?<|im_end|> <|im_start|>assistant As with most things dealing with human perception, there is probably an evolutionary basis for what colors look good together (for humans at least). Perhaps during hunter-gatherer times, certain...
<|im_start|>user AskScience AMA: We are scientists in the food and feed laboratories that test imported products for dangerous pathogens as well as illegal dyes, metals, antibiotics and more. Ask us anything! We are scientists at state food and feed laboratories. Among other things, we [test products imported into the ...
<|im_start|>user ELI5: Why are CPUs/Processors so small? Couldn't we double our processing power / GPU by increasing the size of the chips? I wouldn't mind twice the CPU/GPU size for a gaming PC<|im_end|> <|im_start|>assistant You can improve processing power by increasing the size of the chip, but there are some issu...
<|im_start|>user ELI5: Why is there a standard arrangement of the numbers on a game die?<|im_end|> <|im_start|>assistant Some arrangements of numbers keep the extremes from clumping up on one side of the die, which if the die is unbalanced, would mean significantly higher or lower averages if rolled a large number of t...
<|im_start|>user ELI5: Why does mold grow on overripe fruits and not while fruits are ripening? What stops the mold from forming at an earlier stage?<|im_end|> <|im_start|>assistant Plants defend themselves actively against molds and other pathogens by producing substances thet either kill or doesn't allow to grow the ...
<|im_start|>user ELI5: How does Google have a searchable version of the internet that isn't the same size as the internet? I just what how can this machine even work what is this a school for ants?<|im_end|> <|im_start|>assistant In the same way a book has a index which is much smaller then the size of the book but all...
<|im_start|>user CMV: All Political Campaigns in the United States should have EXTREMELY strict spending caps By extremely strict, I mean $500,000 for House and Senate campaigns and $10 million for presidential campaigns. Why so low? Because with how high campaign spending currently is, massive corporations are able to...
<|im_start|>user [Tunak Tunak Tun - Daler Mehndi] Who are the four magical men and what is their mission on Earth?<|im_end|> <|im_start|>assistant They are the anthropomorphic embodiments of the Classical Elements, the avatars of Nature itself. Petty dichotomies like good and evil, or light and darkness, are irrelevant...
<|im_start|>user What exactly is Effective Altruism and why is it controversial? Looking for a basic rundown of the concept and the controversy around it, not really up to speed in this area. I get it has some relationship with longtermism, which I think I have a reasonable handle the basic concept of, but otherwise I’...
<|im_start|>user CMV: Ghosts don't exist Science tells us that once we die, we cannot come back to life (excluding the exceptional cases of people coming back to life a couple minutes after their death). Our body decays and our brain too. Our "soul", i.e. memories, ideas, thoughts, knowledge, etc. disappear. And there ...
<|im_start|>user What is the psychology behind ruminating on negative thoughts? A common feature of depression or anxiety. Thinking about sad thoughts or worrying almost feels good or addicting. Why is that when it obviously is bad and makes us feel worse?<|im_end|> <|im_start|>assistant Basically, we are programmmed t...
<|im_start|>user ELI5: Why do you need a NASA lens to record candle lit scenes on film, yet the human eye is as small as a mobile phone camera and can see low lit scenes just fine?<|im_end|> <|im_start|>assistant Our brain is incredibly powerful and can 'compute' the dynamic range and the white balance of everything we...
<|im_start|>user [General Sci-fi / Fantasy] Why do warrior societies tend to have a "whoever kills the leader becomes the leader" rule? Why not something more pragmatic, like "whoever kills the leader's killer becomes the leader"?<|im_end|> <|im_start|>assistant One thing that's usually hidden is the 'unspoken social c...
<|im_start|>user ELI5: Spirits What is the difference between popular spirits such as whiskey, scotch, bourbon, and rum? Also when a scotch or whiskey is 'single malt', what does this mean?<|im_end|> <|im_start|>assistant There are a few basic differences. To make a spirit in the first place, you have to start with a...
<|im_start|>user ELI5: Why is a small amount of inflation considered "good" for an economy? I mean, it's pretty obvious why large amounts of inflation are bad. But it's much less intuitive why some amount of inflation is considered "good." Does that help money move around somehow? Or are people more motivated to spend ...
<|im_start|>user CMV: Exams should utilize multiple choice less often I mean the issue is that multiple choice oftentimes encourage students to cram, memorize and regurgitate rather then learn. In certain subjects multiple choice is fine when you cannot just come to the correct answer by guessing or using process of el...
<|im_start|>user What was it like preparing your first semester's worth of lectures? I'm considering becoming a lecturer in the future, was wondering what it's like. Do you normally have to start from scratch when preparing for lectures? Or did you have a contact from whom you received some help? How long did it take...
<|im_start|>user What's the biological advantage of metamorphosis/pupating if the process is so energy-consuming (destroying the entire body in the pupa and rebuilding it again, rather than simply growing up) and vulnerable? Not to mention leaving the pupa immobile and completely vulnerable for long stretches of time. ...
<|im_start|>user CMV:Anyone over 70 shouldn’t be able to run to president no matter the party CMV:Anyone over 70 shouldn’t be able to run to president no matter the party Sure they have life experiences but those life experience where in a completely different time so those life experiences are not worth as much and b...
<|im_start|>user Eli5: How did the Romans do complex mathematical calculations with Roman numerals and without using zero?<|im_end|> <|im_start|>assistant The Romans mostly used math for practical purposes...accounting, construction, engineering. And Roman numerals don't have place meaning...an M is 1000 no matter wher...
<|im_start|>user ELI5 Why do probiotic supplements need to be taken daily? Surely if you are adding 1 - 50 billion new bacteria to your gut you shouldn't need to do this daily. How fast are they dying? Is it due to factors like high amounts of sugar, yeast and stress in people's lives that make it advisable to take a d...
<|im_start|>user If plants are constantly exposed to the sun, why don't they develop cancer? Is there something special about plant cells that shields them radiation that is harmful to humans? It it possible for a plant to "develop cancer" or any sort of harmful mutation?<|im_end|> <|im_start|>assistant Plants do devel...
<|im_start|>user Is it realistic to want to be interdisciplinary? My favorite Wikipedia pages are the ones that say “John/Jane Doe was a philosopher, scientist, historian, sociologist, mathematician, and artist.” Those are the kinds of people I look up to. Those are my role models. But there’s a lot of information out...
<|im_start|>user ELI5: If science can now produce cuts of beef with a small tissue sample from a living cow, why can’t we also produce transplant organs from human tissue? Also, how far away from that technology are we, in your estimation?<|im_end|> <|im_start|>assistant Producing meat (basically growing muscle) is a m...
<|im_start|>user Why do some species use copper to transport oxygen through their blood while most other species use iron? I'm under the impression that copper is less efficient at transporting oxygen, so why don't all animals use iron instead? Did some just never evolve to be able to use iron even though it would actu...
<|im_start|>user ELI5: When there has been no rain &amp; all the plants you want to keep around are dying, why do weeds thrive? Could we not "breed" that hardiness into our flowers &amp; such?<|im_end|> <|im_start|>assistant For the plants that matter, like ones we eat, that kind of hardiness usually works against larg...
<|im_start|>user ELI5: How come when you have an upset stomach, it’s looser or watery stool? You would think things are being digested less, leading to solid in, solid out. I’m sure there is a lot more too it. However, why would something spending less time in your stomach lead to it being more broken down? It also see...
<|im_start|>user How can anthropogenic climate change (global warming) cause the earth to dry up when more water becomes part of the hydrologic cycle as ice caps and glaciers melt? I thought that the earth was more dry than it is now during the last ice age when more water was trapped in ice caps and glaciers and wette...
<|im_start|>user ELI5: How are LED Bulbs of different Brightness/ Wattage made ?<|im_end|> <|im_start|>assistant An LED works by making electrons give up a certain amount of energy when they cross the diode. That determines the wavelength of light that is emitted. Every electron that passes through means that a photon ...
<|im_start|>user CMV: It would be benificial to start using the term 'GSM' instead of continually adding to the classic 'LGBT' *EDIT: Thanks for the replies, everyone. My view isn't changed yet, because while there are some issues with the acronym GSM, I don't think they outweigh the growing problem of inclusiveness in...
<|im_start|>user ELI5: Why, when I have a cold, is my nose stuffy when I'm sitting down, but clears up when I'm walking?<|im_end|> <|im_start|>assistant It helps to explain the source of the stuffiness: blood capillaries that are leaky and cause the sinus tissues to swell and "stuff" your nose. When you become active ...
<|im_start|>user CMV: The concept of gender is irrelevant. I'll start by laying out my thoughts and please correct me anywhere I am wrong. I know I have a lot to learn about this topic and I would really appreciate if someone could show me why and where my thinking is wrong if it is. From what I understand: gender and...
<|im_start|>user ELI5: How much (aesthetically) will a child from one sperm vary from another? In other words, of the millions (billions?) of sperm in the firehouse, how close in appearance would a child conceived between two sperm in the same.....load.....be if 1st and 2nd place to the egg were swapped. Got curious fr...
<|im_start|>user Math as synthetic a priori I just had my first lecture on Kant. My teacher of course talked about the synthetic a priori, but only went on to talk about it in regard to Kant's description of space and time. I remember reading about Kant asserting that synthetic a priori knowledge also presents in the ...
<|im_start|>user AskScience AMA: Hi, I'm Stacy Konkiel, ex-librarian and expert on research metrics. Since 2008, I've worked at the intersection of Open Science, altmetrics, and academic library services with teams at Impactstory, Indiana University , PLOS, and now Altmetric. AMA! Hi, I am Stacy Konkiel, Outreach &amp;...
<|im_start|>user ELI5: How do buffets stay in business? It seems that people who eat a $5 buffet usually consume more than $5 of food. Why don't the buffets lose money?<|im_end|> <|im_start|>assistant In the food service industry, most of the costs aren't food costs, but rather operational ones. Electricity, rent, and ...
<|im_start|>user CMV: More students should fail high school. - http://m.imgur.com/POAeQNS I put together this graph to illustrate a gap. Above you see a random sample of graduation rates. I just wiki'ed an alphabetical list of CA high schools. Graduation rates are high Below you see results from the states Early Asse...
<|im_start|>user ELI5: What is happening when something gets "sun bleached"? For example, they say the flag the US planted on the moon during the Apollo 11 mission should be all white now due to "sun bleaching" what physics is happening here?<|im_end|> <|im_start|>assistant Ultraviolet rays cause damage over time, lead...
<|im_start|>user Why some south american plants produce curare alkaloids, if those alkaloids are not absorbed via GI route and are only effective via parenteral injection?<|im_end|> <|im_start|>assistant Alkaloids are most commonly produced to protect the plant from parasites or animals eating the plant, but can have o...
<|im_start|>user CMV: I don't think being against gay marriage necessarily makes you a bigot. This is how Merriam Webster defines bigots: &gt;a person who hates or refuses to accept the members of a particular group Over the past five years, gay marriage supporters have very successfully branded the opposition as bi...
<|im_start|>user None of my internship interviews ask technical questions... Is this a bad sign for me? On the internship hunt... and during interviews, I'm seemingly asked none, if not very small technical questions. I've had four different interviews, for positions such as Application Developer intern, Software E...
<|im_start|>user ELI5: Why do seasonal changes in weather make everyone sick? I used to work in a pharmacy and every significant change in weather opened the floodgates of sickness: coughs, colds, runny noses, etc. Why? Also, what's the best thing to do to prevent or stop it?<|im_end|> <|im_start|>assistant Certain ...
<|im_start|>user ELI5: Why do insurance rates go up after a car accident? Isn't that like casinos raising their house edge because you won? Having insurance is like paying early for damages you assume you will have, right? Like a bet. It's not like you stop paying insurance once your total payments exceed the coverage,...
<|im_start|>user ELI5: Why do lions live in prides if cats in general are solitary animals? EDIT: Wow, was not expecting so many responses! This is probably a separate question altogether, but every pride I've seen in a nature documentary has one male and a bunch of females. Does that mean that there a whole lot of si...
<|im_start|>user Volts, watts, amps, and how they work together<|im_end|> <|im_start|>assistant If you compare electricity to water, it works out like this: **Voltage** is pressure **Amperage** is amount of water per second **Resistance** is the size of the hose **Wattage** is the spraying power, which is the resul...
<|im_start|>user [WH40K] So what was the plan after humanity took over the galaxy? What did the Emperor have planned once humans took over the entire galaxy?<|im_end|> <|im_start|>assistant Guide the natural evolution of humanity to a point where they would all be as individually powerful as he was. The Primarchs and t...
<|im_start|>user ELI5: What use are coaches of top tier athletes like Federer or Tiger Woods? What can the coach say or do to improve their game?<|im_end|> <|im_start|>assistant You don't always need to be better than someone (do you think Coach K at Duke can beat any of his players 1 on 1) at a sport to coach them, yo...
<|im_start|>user ELI5: How does car insurance work and why it is mandatory to have it?<|im_end|> <|im_start|>assistant The legal minimum is liability insurance. Since it's very easy to cause hundreds of thousands of dollars of harm to someone else, states usually require you have some way of paying any damages in such...
<|im_start|>user ELI5:If humans were to ever come in contact with colours beyond our colour receptive cones, what will we see ? An ordinary human possesses 3 colour receptive cones, while a mantis shrimp has 16. If we, humans, were to ever come into contact with the remaining 13 colours that the shrimps have access to....
<|im_start|>user Continental Philosophy at an undergraduate level? I apologize if this is not really the focus of the sub, but I'm very curious about studying Philosophy at an undergraduate level and how all that works. I'm more interested in Continental Philosophy, but what I've heard is that undergraduate philosophy ...
<|im_start|>user Why doesn't market competition drive down the cost of healthcare in the US?<|im_end|> <|im_start|>assistant It is a bit disingenuous to answer that question without first acknowledging that there is not much of a functional market in healthcare provision in the United States. We wouldn't expect competi...
<|im_start|>user [Star Wars] How do the Sith meditate? I know Darth Vader would meditate while in his Bacta tank, and Sidious and Plagueis both used Force meditation to offset the need for sleep, but what are they actually doing there? Meditation calms you down, and that’s pretty against the Sith philosophy.<|im_end|> ...
<|im_start|>user Why don't natural anti-bacterial substances, eg. garlic, contribute to resistance like antibiotic drugs do? There is a lot of concern these days about the prevalence and over-use of chemical antibiotics causing resistant strains of bacteria. This is pretty easy to grasp, considering the reproduction ra...
<|im_start|>user ELI5: Why does the offbeat in music feel so good to snap to?<|im_end|> <|im_start|>assistant There's two different ways we can answer this: historically and psychologically. In a bar of music, you usually have 4 beats: 1234. This repeats over and over to make a song. In most modern rock music, beats 1 ...
<|im_start|>user In many models, dark matter WIMPs are their own anti-particles. How are they expected to generate photons on annihilation if they have no coupling to the EM field?<|im_end|> <|im_start|>assistant Via loop processes or intermediate particles. An example that we have observed is the Higgs decay to two ph...
<|im_start|>user CMV: Prison is actually harmful to both the inmate and society. Most argue that we should lengthen prison sentences and go harder on crime as a way to protect society from rapists, muderers, drug dealers, ect. The reality is quite the contrary. Many don't realize how traumatic prison is. All freedoms ...
<|im_start|>user Do we know anything about Neanderthal language capabilities?<|im_end|> <|im_start|>assistant There is high evidence they were able to speak because we share a specific gene (FOXP2) that is responsible for language. And because of Neanderthal anatomy we can deduce they had a higher pitched voice than us...
<|im_start|>user ELI5: Why do pigeons thrive so much better inside cities than any other bird? Every city I ever visited had an abundance of pigeons but rarely other kinds of birds and definitely not as many/openly running/flying around. Do pigeons just thrive better in cities than other kinds of birds, if so why?<|im_...
<|im_start|>user ELI5: why does my body tell me to scratch, when it basically worsens absolutely everything? (Scabs, rashes, bug bites, pox, poison ivy)<|im_end|> <|im_start|>assistant Typically it is due to a natural response by your immune system to foreign material. Say you had a tick or leech attached to your skin,...
<|im_start|>user [Star Wars] When Count Dooku or Darth Sidious jumped around and rolled over in mid air, was it their pure fitness strength or did they use the force? I.e. Dooku vs Anakin and Obi-Wan in Ep3, Dooku jumps in mid air to land on the the bottom floor.<|im_end|> <|im_start|>assistant Force users both light a...
<|im_start|>user When economists study black markets, how do they get their data if the trade is supposedly illegal? Is there any component of black market analysis which is especially reliable and if so, why?<|im_end|> <|im_start|>assistant Data on illegal activities can come from a number of different sources. Satell...
<|im_start|>user ELI5: How do theaters determine how long movies are played? Do they decide on a percentage? Do they talk with distribution companies before hand? What if the movie doesn't meet its expectations in terms of occupancy/ticket sales?<|im_end|> <|im_start|>assistant Theaters make agreements with the distrib...
<|im_start|>user What is more effective at cooling the body, no clothing or one layer of moisture wicking clothing? Is a single layer moisture wicking t-shirt better than wearing no shirt at all?<|im_end|> <|im_start|>assistant Too many unknowns to answer. Scenario A - good airflow around your body -&gt; convection is...
<|im_start|>user ELI5: Why do hot things like car engines and tabletop electric burners make ticking and clicking noises after you turn them off and they’re cooling down?<|im_end|> <|im_start|>assistant When most materials heat up, they expand. What you are hearing is the metal "shifting and popping" as it contracts o...
<|im_start|>user Why do things appear darker and more colorful (e.g. stones) when they are wet?<|im_end|> <|im_start|>assistant The surface of many objects is rough on a microscopic scale, which is in large part responsible for the bright diffuse reflectance. When the microscopic roughness forming the surface is coated...
<|im_start|>user ELI5:Why do people assume that oxygen is needed on other planets to sustain life? The universe is so vast, isn't there a possibility that "life" on other planets could rely on a different element for survival other than oxygen?<|im_end|> <|im_start|>assistant We don't really assume it, it's just a fram...
<|im_start|>user [Limitless / Various] In Limitless, NZT-48 gives you maximum potential cognitive power of the human brain, and perfect instant total eidetic memory recall of anything you've experienced or seen. How would a normal person on permanent NZT state fare in worlds with more advanced sciences? In Limitless, a...
<|im_start|>user Is weathering/erosion of rock by water more due to chemical or mechanical processes? I was reading this page: [https://opengeology.org/textbook/5-weathering-erosion-and-sedimentary-rocks/](https://opengeology.org/textbook/5-weathering-erosion-and-sedimentary-rocks/) &amp;#x200B; And while they indica...
<|im_start|>user ELI5: If gas prices go up on holiday weekends due to demand, how is that not considered price gouging?<|im_end|> <|im_start|>assistant They go up in a reasonable amount to account for supply and demand and the natural flow of the invisible hand. If they were to say bump prices up by $3/gallon on a wee...
<|im_start|>user If the speed of light is the maximum speed an object can move then isn't there a maximum temperature? From my limited experience I understand that heat comes from particles moving and bumping into each other. The faster the particles the higher the temperature. So since particles are moving arent they ...
<|im_start|>user ELI5: Why sunscreen is so vital, when ancient humans did not wear it. I searched and found nothing really similar to what I am asking. So basically my question is, with all the sunscreen pushing we have now, what did people do in ancient times? It's like a crime to go out without sunscreen nowadays...
<|im_start|>user Eli5 - how are western economies sustainable? I live in the uk, but the more I think about it, the more I realise that it just seems to be series of office workers propping up each others salaries. There’s no (or small) base that actually produces goods, the farmers or the labourers as such. Why?<|im_e...
<|im_start|>user how can oceanic dissolved oxygen decline if an increase in gas temperature usually means increase in dissolved oxygen?<|im_end|> <|im_start|>assistant Basically you assume oxygen has higher solubility in water as temperature increases but, unlike solids like salt or sugar, gases are much less soluble a...
<|im_start|>user ELI5: Why are some people genius at chess, but completely normal in every other thing? Many world champions of chess immediately become grand master at the very young age, about 12-16. But they all seem totally normal in every other thing. Why aren't their intelligence show up in other things? What mak...
<|im_start|>user ELI5: Why does using a tootbrush how we do not make us sick? It is never sanitised and sit in your bathroom all day. Sorry about the terrible title I posted right before I went to sleep after I brushed my teeth.<|im_end|> <|im_start|>assistant Soap, your faucet, your tooth brush, the glass you drink wa...
<|im_start|>user [Matrix] Why the inconsistent crew requirements for hovercrafts? In the first movie, Neo awakens to a fully crewed ship. 6-7 people minimum, all busy working with the ship. DUring the course of the movie, it drops to four (including Neo). Never again does the ship require more people than that. Also,...
<|im_start|>user Does state of matter have an effect on the absorbtion spectrum of a material?<|im_end|> <|im_start|>assistant Yes. Absorption spectra change with phase. The spectra of a material depends on all the ways the system can be excited. In a solid, for example, you can have excitations of the atomic displac...
<|im_start|>user [Cyberpunk] How exactly have guns evolved? Tabletop and video game version. What makes a cyberpunk pistol any better than a Walmart Glock?<|im_end|> <|im_start|>assistant All of the weaponry in the world by assumption needs to consider the advancements in technology. A highly cyberized and armed corpo...
<|im_start|>user [24] How did Jack Bauer go from a BA in English Lit. To a Master of Science in Criminology? Is this a normal study path that can lead to a career in counter-terrorism?<|im_end|> <|im_start|>assistant Yes. Because contrary to popular opinion, a degree in English lit doesn't just make students "smart in ...
<|im_start|>user Why does a spine have protrusions on it? What causes this and how are they evolutionarily useful?<|im_end|> <|im_start|>assistant The *spinous processes* that protrude from each vertebra in the spine have two main purposes. The longer ones are attachment points for ligaments and muscles, giving muscles...
<|im_start|>user ELI5: How dogs are able to sense and know when something medically wrong is about to happen in a person before it actually happens?<|im_end|> <|im_start|>assistant This depends on the effect you mean. Some cancers can be smelled by dogs. There are 'cancer sniffing dogs' that have been trained t...
<|im_start|>user ELI5: Why does diplomatic immunity exist? What's the benefit?<|im_end|> <|im_start|>assistant It exists because every country wants their own diplomats to feel safe when working in other countries with very different laws, and the only way to guarantee that is to give the same courtesy to others. Imag...
<|im_start|>user ELI5 - In very brief, simple terms, what is the postmodern? I suppose I mean from a sociological perspective. This is one concept that seems to pop up everywhere, but it always seems to mean something slightly different. Relationships with media, inter-textuality, that kind of stuff I believe, but I've...
<|im_start|>user Is the way of making philosophy based on "first principles" dead? I read somewhere that Quine's "Two Dogmas of Empiricism" invalidated the pursuit of "first principles" from which truth could be determined and a system of philosophy could be constructed from. It is true? Are there philosophers still wo...
<|im_start|>user When and why did a 5 day work week become the norm?<|im_end|> <|im_start|>assistant It stems from the 8 hour work day campaigns in the middle of the 1800s. 8 hours of rest, 8 hours of work, 8 hours of relaxation. These were fought for by the unions. The when and why also depends on the country in quest...
<|im_start|>user ELI5: What is all the hype around 3D printers and why would it revolutionize the way we make things? I see all these articles about how 3D printers were used to build cheaper prosthetic limbs etc, and I wonder how this cannot be achieved with conventional manufacturing, which has been around forever no...
<|im_start|>user ELI5:Why is there one section of the audience at Obama's State of the Union that never stands up or applauds when everyone else does? Edit: Thank you all for the quick responses! This was really puzzling me.<|im_end|> <|im_start|>assistant There are three groups in the chamber: The democrats - they wi...
<|im_start|>user What is implicit cost? Is implicit cost the opportunity cost of a resource to be used in some other way than being allocated in the factors of production for the producer?<|im_end|> <|im_start|>assistant The implicit cost of a resource is the opportunity cost of its expenditure that will not show up as...
<|im_start|>user CMV: Adding extra ingredients to a grilled cheese doesn't make it any less than a grilled cheese Inspired by /u/Fuck_Blue_Shells [post about grilled cheeses versus melts](http://np.reddit.com/r/grilledcheese/comments/2or1p3/you_people_make_me_sick/), I had to come to the defense of ingredients in grill...
<|im_start|>user ELI5: how do they get water and sewer up to remote homes that are high in the mountains?<|im_end|> <|im_start|>assistant If location is really remote, you can provide water and sewer on-site. For water, drill a well, install pump and filter, and (ideally) monitor quality. For sewage, dig out a septic t...
<|im_start|>user I don't believe there is an overarching meaning to life. CMV I don't think there is some thing that humans were put on earth to do. All of the theories I've heard had to do with other people, religion, or egotistical 'we have to fix everything because only we can' stuff. I think that there is no reason...
<|im_start|>user ELI5: How can animals that eat spiders for sustenance not get bitten inside their mouth/throat sometimes? (Or do they?) (Disclaimer: I'm not talking about poison vs venom. I understand why the digestive system negates the toxin in the spider.) Surely things that routinely eat spiders such as birds, re...
<|im_start|>user Do cross-eyed people see the world in double and learn to operate that way? Or does their brain learn to process the image correctly? I assume it's the latter because I doubt anyone's eyes are 100% straight/aligned, but in that case - when a baby is born cross-eyed, do they already know how to correctl...
<|im_start|>user CMV: I'm a nationalist. _____ First off: I'm from Sweden (very relevant), I'm 20 years young and male (slightly relevant). Growing up in what is today a multi-cultural society I early started to notice that in many aspects of society Sweden turned for the worse following the inflow of strangers and t...