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<|im_start|>user ELI5: The "Old Math" in Tom Lehrer's New Math If you haven't heard the song, he describes the way they used to do math as follows: &gt;Consider the following subtraction problem, which I will put up here: 342 minus 173. Now, remember how we used to do that: &gt;Three from two is nine, carry the one, ...
<|im_start|>user ELI5: If your heart has roughly 1 billion beats before natural failure, why is cardio exersize good for you? Is it the same principle behind other muscles? Working them out makes them stronger?<|im_end|> <|im_start|>assistant Two reasons. - Cardio doesn't just exercise your heart. It exercises your lu...
<|im_start|>user ELI5: Why do things always look farther away on a camera?<|im_end|> <|im_start|>assistant It basically all depends on the lens you're using. Most cameras that we use, such as those on cell phones, have a relatively wide field of view. The wider your lens, the further away the subject will appear. The o...
<|im_start|>user How does host selection work for different species of parasitic wasps? There are thousands of species of parasitic wasps, and they have a diverse range of hosts for which they lay their eggs in, such as caterpillars, spiders, aphids, etc. However, could, for instance, a tarantula hawk wasp be able to l...
<|im_start|>user ELI5: What triggers a seed to start growing? Obviously water, sunlight, and soil conditions are the macro-triggers, if you will. But what happens inside the seed to get things moving?<|im_end|> <|im_start|>assistant Seeds wait to germinate until three needs are met: water, correct temperature (warmth),...
<|im_start|>user [Star Wars] I'm a Star Destroyer captain that wants to desert to the rebellion, what do I do? I've grown tired of the atrocities the Empire does and I want to help out the rebellion with this kick-ass Star Destroyer. I have most of the officers on my side and about half of the crew. Can I make it?<|i...
<|im_start|>user ELI5: Why do bodybuilding supplement shops sell Ben and Jerry's ice cream? I've seen Ben &amp; Jerry's being referenced regarding body-building and working out all over the internet too, such as fitness forums and even /fit/ on 4chan. I then saw it for sale at a local body-building supps shop; the kind...
<|im_start|>user Teaching-only positions at colleges I really love math and I would like to teach at college level. I'm not as keen on research though. I have a few questions. 1. Are teaching-only positions hard to come by? What are the opportunities like, especially for a foreigner? 2. What are the requirements? Wo...
<|im_start|>user Where Should I Start with Philosophy of Art? Hi, everyone. So, I’ve always been intrigued by what Art and aesthetics “are”. I remember from my Philosophy class (back in High School) that there is a branch of Philosophy that approaches the previous themes - I also remember my teacher saying that it is q...
<|im_start|>user ELI5: Why we use chip readers. Chip readers seem a lot slower to work, and the swipe method really doesnt have anything significantly wrong about it.<|im_end|> <|im_start|>assistant The magnetic stripes on the back of payment cards are easy to read and easy to program, making them extremely easy to clo...
<|im_start|>user ELI5: Why is being Jewish considered an ethnicity?<|im_end|> <|im_start|>assistant It is considered an ethnicity because the development of the Jewish religion occurred among a specific group of people, and so as the religion grew, so did the ethnicity associated with the religion. The Jewish ethnicity...
<|im_start|>user ELI5: How does lead exposure lead to mental health problems in children and why is it hard to remove from the bloodstream? I was reading an article about lead poisoning in children and it has me wondering how lead exposure damages your brain. From a quick search it seems like it can cause obsessive com...
<|im_start|>user [Terminator] What makes the 800 series of Terminators so effective at defeating more advanced models?<|im_end|> <|im_start|>assistant Sometimes, certain types of technology progress to a point where they are so effective at doing the tasks they are designed to do that the marginal return on any enhance...
<|im_start|>user How bright would a single light have to be to be visible from the moon? Specifically lights that shine in a cone such that they could be pointed at the moon and be visible from anywhere facing the earth, as opposed to lasers which would only be visible from a small area Also assuming the area the light...
<|im_start|>user [General Fantasy] Many Fantasy settings are specifically in "Medieval Stasis," are there any examples of settings in "Bronze Age Stasis," "Antiquities Stasis," "Dark Ages," or other? Like the [trope](https://tvtropes.org/pmwiki/pmwiki.php/Main/MedievalStasis) implies, it's a setting that has gone *thou...
<|im_start|>user CMV: Universities should have professors dedicated to teaching only It seems more and more frequently students are struggling with professors teaching poorly despite ever increasing tuition costs, the pandemic and online learning has only emphasized this. It would make sense to me for universities to...
<|im_start|>user ELI5 the difference between sentience and sapience, please<|im_end|> <|im_start|>assistant Sentience is the ability to feel, the capacity for perception, derived from Latin *sentientem*, "a feeling". It is a base-level aspect of consciousness (as simple as being able to understand your surroundings). ...
<|im_start|>user CMV: A minimum wage increase will do no good for the economy. (Just a note before I get into it. I am in no way an expert on economics. I hold only a basic understanding of the economy, that which was provided via public schooling.) I live in Canada and increases to the minimum wage have been discusse...
<|im_start|>user What do people mean by meaning (of life)? For example, someone might say "meaning is constructed" or "there is no inherit meaning in the universe". But what do they mean? What is "meaning"?<|im_end|> <|im_start|>assistant When something has meaning, it points to something else. Words have meaning. The ...
<|im_start|>user ELI5: In movie credits, why are some names coupled with the word "and" while others get ampersands? [Topical visual example.](http://i.imgur.com/pvb0bpu.png) Why are the first two names joined by an ampersand but the word **AND** separates the other names? Why wouldn't it be one or the other the whole...
<|im_start|>user ELI5: How do people who speak Asian languages such as Chinese or Japanese explain how to spell words? In Western languages we have letters that build into words, however in most Asian dialects there doesn't seem to be letters. So if someone from China didn't know how to spell a word, how would his frie...
<|im_start|>user ELI5: How are wild and sometimes dangerous animals in documentaries filmed so close and at so many different angles without noticing the camera operator?<|im_end|> <|im_start|>assistant lots of different ways of doing. 1. So really long lenses is one reason - the photographers are not near the animals...
<|im_start|>user If something bleaches, where does the colour go? When something gets bleached, where does the colour go? For example plastic toys or printed posters that lose their colour when exposed to the sun, as well as chemical bleached things such as hair or fabrics.<|im_end|> <|im_start|>assistant In brief, col...
<|im_start|>user ELI5: How do airfare search engines work? They make no sense to me. Sitting here booking a flight. Finding a Lufthansa flight, but it's apparently much cheaper through the United website. Finding a multi-city flight on Google Flights, but other search engines will find you completely different flights,...
<|im_start|>user Beginner readings on how individualism and the concept of self is informed and nurtured by capitalism? Been quite interested in this lately. Personally I've been torn between being a cog in the machine and following the rule book of work to afford a happiness and peace outside of work, and realizing th...
<|im_start|>user [Marvel] Why do people use the term "healing factor" instead of "regeneration"?<|im_end|> <|im_start|>assistant Imo healing factor refers to natural healing processes that are supernaturally faster whereas regeneration can reconstitute vaporized limbs or other things that would lean more towards ‘natur...
<|im_start|>user [Star Wars] What exactly is a holocron? I thought they were like advanced flash drives, but then some of them seem to have Force powers. Are they inherently Force sensitive or does that only happen to some of them? And if so, how?<|im_end|> <|im_start|>assistant A Holocron is created and accessed, at l...
<|im_start|>user How does transparency work? As far as I can tell, there aren't little holes for the photons to jump through in my window. I'm curious to know the mechanism behind transmitting light through a transparent material in addition to the obvious case of how it gets through the air we breathe.<|im_end|> <|im...
<|im_start|>user ELI5: How can water evaporate normally in nature while having a 100°C boiling point?<|im_end|> <|im_start|>assistant The amount of energy that each molecule of water has is not equal, some have more and some have less than average. If a molecule at the surface happens to have more energy than average ...
<|im_start|>user ELI5: Quantum Zeno Effect and how it relates to Zeno's paradoxes.<|im_end|> <|im_start|>assistant I'll try with a toy example and cover the important points in quantum mechanics. Take out pen and paper. :) Draw a coordinate system and a unit circle of radius one with center in (0,0). This is the *quan...
<|im_start|>user How do we know it rains diamonds on saturn?<|im_end|> <|im_start|>assistant Technically we don't "know" We know 1) The chemical composition of the atmosphere contains a good chunk of methane based on light reflection analysis. 2) We know the mass/volume/density of saturn based on lots of other math ...
<|im_start|>user ELI5: why are dermatologists and doctors so hesitant to remove moles? Why is it that doctors and dermatologists are so hesitant to remove moles? If moles can't turn cancerous anytime why would you not just remove them as a preventative measure?<|im_end|> <|im_start|>assistant The first rule of medicine...
<|im_start|>user No information can travel faster than c, so no event inside an event horizon can have any causal effect on the external universe. How then do external objects "know" the mass of a black hole? Is that information somehow accumulated at/outside the event horizon over the life of the black hole?<|im_end|>...
<|im_start|>user ELI5: The difference between a Therapist, Psychiatrist, and a Psychologist.<|im_end|> <|im_start|>assistant Therapist: A person who doesn't necessarily have a degree (but they very often do). But works to help people through problems such as bereavements or social anxieties. Psychologist: A person who...
<|im_start|>user [CMV] I think car alarms are a waste of money and don't prevent theft These days, when you're walking through a parking lot, and you hear a car alarm go off, which is your first thought? A. Some dumbass set off his car alarm. B. Some dude's getting his shit jacked! I'm sure most people would say A. ...
<|im_start|>user ELI5 What’s modernism and post-modernism?<|im_end|> <|im_start|>assistant Modernism was a movement in art and culture in the late 19th and early 20th century that was obsessed with new ways of doing things, owing in part to the technological and scientific advances of the era. Modern art, for example, ...
<|im_start|>user What makes a gas a greenhouse gas? For example, what are the molecular properties of carbon dioxide (CO2) that allow it to retain heat, that nitrogen (N2) lacks?<|im_end|> <|im_start|>assistant Greenhouse gases absorb and re-emit infrared radiation. This means that instead of passing through the atmosp...
<|im_start|>user Eli5. What decides an animals longevity as for as mortality? A horse, way stronger and healthier than most humans, live only to around 20 to 30 years, yet the steady rate when humans expire is around 70 to 80 years. How does this work?<|im_end|> <|im_start|>assistant The faster a speices cells divide, ...
<|im_start|>user CMV: Restaurants that post their menus online without pricing are just hurting their own business I mean, what's the point of doing so? If a prospective client is interested enough to access your online menu then he or she is interested in pricing as well. These restaurants are just creating pointles...
<|im_start|>user I'm an early-career researcher, supervising a very poorly performing PhD student - reaching the end of my tether (Australia) Hi all - seeking advice, experience and options - please let me know if this is not appropriate for this sub. Sorry - this is long. I am an early career researcher (4-years pos...
<|im_start|>user ELI5: Why does LED not illuminate areas well? Comparing old 'orange' street lights to the new LED ones, the LED seems much brighter looking directly at it, but the area that it illuminates is smaller and in my perception there was better visibility with the old type. Are they different types of light? ...
<|im_start|>user ELI5:How does an economy crash. One has been posted five years ago so its pretty old, and I would like a more simplified explanation.<|im_end|> <|im_start|>assistant A crash can ultimately be caused by many different things, but they all have the same effect: money stops circulating. To over simplif...
<|im_start|>user Why am i cold inside at 66 degrees F, but very comfortable if not warm outside at the same temp?<|im_end|> <|im_start|>assistant There are a variety of factors. One is the sunlight; sun shining on you directly delivers thermal energy through radiation, which can warm you enough to make a noticeable di...
<|im_start|>user ELI5: Why the deep ocean creates total monstrosities compared to other regions.<|im_end|> <|im_start|>assistant The simple answer is evolution. As /u/friend1949 said it's all about perspective and what we are used too seeing. The deep ocean is an environment totally unlike anything we experience on a d...
<|im_start|>user ELI5: What happens when you tune a radio? How do the frequencies change?<|im_end|> <|im_start|>assistant The station frequencies don't change, but by tuning you are adjusting the receive part of your radio to become sensitive to a certain frequency you want to hear. Inside the radio are parts (capacito...
<|im_start|>user I really want to study philosophy. Does this mean I should go to grad school? I hear many say that the only true or real (or best) way to do it is in academia. But many people also advise strongly against going to grad school for philosophy. So it sounds like a double-bind if the best way to study phil...
<|im_start|>user ELI5: Why do Humans have multiple of some organs but not back ups of some very vital ones like heart, liver, stomach or brain?<|im_end|> <|im_start|>assistant The short answer is that every organ you have requires nourishment to be effective, and redundancies for everything would practically double the...
<|im_start|>user Do we act in accordance to what we think is rational or does is rational determined by our actions? What kind of reading should I do to understand, do we act in accordance to what we think is ~~rational~~ meaningful or does is our values which ~~rational~~ determined by our actions? &amp;#x200B; Mayb...
<|im_start|>user ELI5: What about Tilt-Shift photography gives it the illusion of looking like toys. Pictures like [these](http://i.imgur.com/KANFA.jpg), called tilt-shift photography, I know they use special lenses and what not. I'm not curious about how they're taken, but what exactly about the output, the finished ...
<|im_start|>user ELI5 how do anti anxiety medications like benzos work?<|im_end|> <|im_start|>assistant Neurons in your brain send signals to each through chemicals called neurotransmitters. Different neurotransmitters do different things. There's a neurotransmitter called GABA which is the primary inhibitory neurotran...
<|im_start|>user Assistant professors competing against post docs for tenure track position I just received an email from my department (top 5 in my field) inviting graduate students to sit in on faculty search presentations. I noticed that some of the applicants were post docs while others were already established ass...
<|im_start|>user ELI5: How do corrosive materials not eat through their containers? Ex: What makes glass impervious to acid? I've been wondering this ever sense middle school... Does it have something to do with the strength of the corrosive material? What's to stop an extremely strong acid from eating through everythi...
<|im_start|>user ELI5: Why do cysts keep coming back over and over if the sac isn't removed? Does the sac generate more sebacum (sp?) or is it something else?<|im_end|> <|im_start|>assistant To answer your question, it is important to define the terms which describe what laypeople call "cysts." There are abscesses whi...
<|im_start|>user ELI5: why do atoms decay? Say I have 2 atoms of gold, i cannot tell one apart from another, yet one is going to decay while another one will continue to be, so what makes 2 seemingly identical atoms behave differently? what is that something that makes them different? Is there some sort of fatigue at a...
<|im_start|>user Questions to ask when I visit a potential grad school I'm visiting my first grad school in a couple weeks. At this point it looks like it's probably my top choice. What should I make sure to find out before I make a final decision?<|im_end|> <|im_start|>assistant Its important to remember that if you'...
<|im_start|>user How come there is no cancer of the muscle or the heart? I have never heard of biceps cancer or trapezius cancer. Doesn't cancer affect muscle cells?<|im_end|> <|im_start|>assistant In general, cancers are most likely to occur in tissues with cell populations that divide a lot over the lifespan of the o...
<|im_start|>user ELI5: how do ocean animals navigate in their 360° environment? I know dolphins and whales have sonar. But how about fish, jellyfish, giant squid, sea turtles etc? They have no visual points of reference like us land animals, they can literally travel in any direction (vs. our fairly linear plane of mov...
<|im_start|>user how does fat and protein digestion works? difference between lean and fatty protein and the effect on digestion time? Hello altogether, unfortunately I have many different questions about all things fat and protein digestion, specifically regarding animal products with different fat content. I want t...
<|im_start|>user If the Sun were to suddenly disappear how long would it take for the Earth to freeze? Title pretty much. Question came to me when watching a Doctor Who episode. Edit: From a few comments, I think I need to be more specific. My freeze, I mean be unsuitable for human life without technology. I don't mea...
<|im_start|>user Why is it that when you're in a "dark" room and you focus on a really dark spot, everything, even light, will start to fade away? I know I probably didn't make any sense since it's hard to explain but imagine being in a dark room with nothing but a little red LED light in the center of the room, if you...
<|im_start|>user How do we know chemical reactions doesn't react with air? for example A+B-&gt; C How do we know there isn't air involved in A+B? Don't you need to have a vacuüm to be 100% sure there is no air involved?<|im_end|> <|im_start|>assistant We can pretty easily see that oxygen isn't in the products if we ...
<|im_start|>user Can multiple exact same sounds played over each other produce a louder decibel output than the original sound?<|im_end|> <|im_start|>assistant This is an example of constructive or destructive interference. If the waves are in-phase, this is constructive interference. The intensities of the two waves w...
<|im_start|>user ELI5: How come a large portion of African Americans are such devout Christians?<|im_end|> <|im_start|>assistant The religion gave them faith in a better future during slavery, and it has been passed on culturally from mother to son, father to daughter. They weren't allowed to practice any of their nati...
<|im_start|>user How does mercury polish silver? ive seen it , but i want to know!<|im_end|> <|im_start|>assistant Two processes: Mercury dissolves the outer layer of silver in amalgamation, as another poster stated. Also, mercury directly reacts with silver sulfide (the main component of tarnish) to form cinnabar (HgS...
<|im_start|>user [Economics] What would happen if Amazon replaced... everything? I find myself doing an increasing amount of my purchases through online vendors, primarily amazon.com. The recent announcement that [office depot will be closing 400 locations](http://www.usatoday.com/story/money/business/2014/05/06/office...
<|im_start|>user ELI5:How did society withstand the sun prior to sunscreen? I'm thinking of all societies prior to the invention of sunscreen as well as those lost at sea on a lifeboat. How?<|im_end|> <|im_start|>assistant For thousands of years, people in sunny regions had dark skin, while people in non-sunny regions ...
<|im_start|>user 2 PhD students, same experiment Hi, I started my PhD in Biology a week ago and I just found out that there is another PhD student (who started in October) working under my supervisor who is already working on the EXACT same experiment as me. What should I do?<|im_end|> <|im_start|>assistant Since you b...
<|im_start|>user ELI5: How Do Boat Anchors Work? How does a boat's anchor hold it in place despite being so much lighter than the boat itself? Surely the anchor doesn't always catch on something on the sea/lake bottom, otherwise it would be hard to retrieve right? Esp as it relates to large vessels like cruise ships t...
<|im_start|>user Can someone explain me the chemistry behind stains and why some stains cannot be removed?<|im_end|> <|im_start|>assistant **TL;DR - Some stains are held in place by weak chemical bonds but others are held by strong covalent chemical bonds that won't be broken by traditional solvents or surfactants (soa...
<|im_start|>user ELI5: How do lasers cut through objects?<|im_end|> <|im_start|>assistant Light is a form of energy, like thermal energy etc. Laser light can be a very concentrated (focused) form of energy. Energy is conserved (it cannot be created or destroyed) so when high energy laser hits an object, that energy mus...
<|im_start|>user Why was nuclear power originally researched? What was the original purpose for studying nuclear energy or nuclear fission? Was it to help man-kind originally, or was researched to create a new weapon? I am just trying to understand the historical purpose of nuclear energy and what the scientists had in...
<|im_start|>user Pilot wave theory, a theory involving highly complex and non-linear differential equations, is fully equivalent to matrix mechanics, a theory involving only linear differential equations. Does this have implications for our ability to solve non-linear differential equations?<|im_end|> <|im_start|>assis...
<|im_start|>user Is there a difference in the quality of happiness experienced from 'engineered' activities like video games compared to the happiness experienced from 'natural' activities like rock climbing? I've been thinking about the types of activities people fill their lives with in modern times compared to what ...
<|im_start|>user ELI5: why do most pictures of deformed babies happen to be from Southern Asia? Is there something specific to that region that causes it versus other 3rd world areas?<|im_end|> <|im_start|>assistant A large amount of people in sub-optimal conditions such as dirty water, little food, various diseases, e...
<|im_start|>user ELI5: How do psychology researchers obtain informed consent without tipping their subjects off on the subject of the study? I know that subjects of research studies must give informed consent before they are allowed to participate. I also know that informing subjects of psychological experiments of the...
<|im_start|>user ELI5: Carcinogens; How Do They Work? I understand that cancer is an uncontrolled growth/replication of benevolent cells, but how do carcinogens cause/increase the chances of getting cancer? As an addendum, what makes some people more susceptible to getting cancer. My great aunt smoked from the age of ...
<|im_start|>user CMV: university shouldn’t be free In the United States, there’s a push to make universities free in order to make education more available to the masses. While I do think education should be readily available to all interested parties, free university is going to take things down the wrong path. Going...
<|im_start|>user Why are workers paid an hourly wage instead of a portion of the value they add to the product? The question comes to me as a philosophy degree holding line cook. I watch the raw beef turn into a delicious hamburger, and yet I am compensated for my time rather than the work I put into the food. I can ...
<|im_start|>user ELI5: Why is mercury so dangerous?<|im_end|> <|im_start|>assistant Mercury replaces calcium, sodium, and iodine in body chemistry, disrupting the workings of these dependent bodily functions. For example, your thyroid will absorb mercury instead of iodine, it will disrupt your immune system functions. ...
<|im_start|>user How do things/people gain high status or become low status?<|im_end|> <|im_start|>assistant This is a huge question, could you maybe discuss it a little bit as to narrow it down? e.g. are you more interested in things or in people, do you have a particular society (place/time) in mind, maybe why you're...
<|im_start|>user ELI5: What's the difference between intensive care medicine and emergency medicine?<|im_end|> <|im_start|>assistant Emergency care is about stabilising people so they can be treated for the problem whether that's a cast on a broken leg or emergency surgery following a car accident. They are about treat...
<|im_start|>user [Game of Thrones] Shouldn't members of Unsullied army be significantly weaker than soldiers in other armies due to lower level of testosterone?<|im_end|> <|im_start|>assistant Yes and this is acknowledged in the books: "Others may be stronger or quicker or larger than the Unsullied. Some few may even ...
<|im_start|>user ELI5: According to data we have discovered 14% of all organisms on earth. Where does this number come from, if the other 86% of haven't been discovered yet (and therefore we don't know if they exist)?<|im_end|> <|im_start|>assistant Statistics like this are created based on looking at what is identifie...
<|im_start|>user ELI5: Why does cross breeding work between certain species but not all?<|im_end|> <|im_start|>assistant Your genetic code is like a recipe, a series of biological steps that describe how to make you you. Your unique recipe is created by going through your parents' recipes, and at each step choosing at...
<|im_start|>user ELI5:What makes us interested in something? I mean, what happens in our body that makes us enjoy things we are interested in? And why is it that I can be interested in one thing but someone else wont be?<|im_end|> <|im_start|>assistant We develop interests through nature and nurture. You might have a i...
<|im_start|>user The relationship between distance and torque seems like magic to me. What is actually happening to increase torque with a longer lever? Why is the torque increased simply because you are farther away from your pivot point?<|im_end|> <|im_start|>assistant A more intuitive way to think about it is if you...
<|im_start|>user CMV: If school children were treated like adults by teachers, overall behaviour and performance would improve. I think it’s counter intuitive to give children freedom at school, because everyone’s first thought initially goes to taking the reigns off and facilitating chaos. But I think being respected...
<|im_start|>user ELI5 Why does singing/rhyming help you memorize? Secondly, why does it seem to help motivate younger children to do things they normally wouldn't? I could never get my 2yo daughter to help me clean up her toys, but once i started singing 'putting your toys in the box, putting your toys in the box' it's...
<|im_start|>user ELI5: what kind of math, if any, is behind traffic lights especially in major cities? Is it a difficult process to time them in sync with surrounding lights to make sure there are no huge back ups?<|im_end|> <|im_start|>assistant Traffic engineers have models that incorporate any new lights into the ex...
<|im_start|>user ELI5: the notion that our physical strength is held within safe limits by pain. Are we really that much stronger than we experience in our daily lives?<|im_end|> <|im_start|>assistant To put it simply, yes, your body is capable of lifting much more than you realized. However, it can't do it without ser...
<|im_start|>user ELI5: Why is it that when watching a movie at 24 frames per second it seems perfectly normal, but when playing a video game it is almost unbearable?<|im_end|> <|im_start|>assistant Film frames can capture motion blur of fast moving objects, essentially the object is appearing in several places at once....
<|im_start|>user Since the honeybee is an foreign species in North America, would it really be that bad for NA if all honeybees died out? Since honeybees are technically an invasive species, would it have much impact? How did pollination work before bees in the Americas?<|im_end|> <|im_start|>assistant Bees aren't the ...
<|im_start|>user ELI5: How does ironing work?<|im_end|> <|im_start|>assistant Through a mixture of different forces. First, HEAT &amp; STEAM- the heat and the steam in the iron makes the bonds between the molecules of the fabric weak and pliable. Second, WEIGHT- the weight of the iron makes the (now pliable) fabric pre...
<|im_start|>user Why doesn’t the LHC use an extra electric field to curve its beams instead of relying on magnets and the Lorentz force? Wouldn’t it be possible to have another electric field coming from the “sides”?<|im_end|> <|im_start|>assistant Magnetic fields are more convenient for bending/focusing elements at hi...
<|im_start|>user Where does Rorty say to avoid metaphysical problems is to stop asking them? I am reading a dissertation and writer says this: "For Rorty, the way to avoid metaphysical problems is to stop asking (and thinking about, and obsessing over) metaphysical questions. This will take time and practice, but its ...
<|im_start|>user ELI5: Can a 'loud' sound frequency outside of our hearing range cause damage to our ears?<|im_end|> <|im_start|>assistant Sound is the vibration of an object. Our ears translate sound to our brains by turning the vibrating energy into electrical energy. They're tuned by tissue thickness and flexibility...
<|im_start|>user What does it mean to be a Marxist historian? I had a professor in college (teaching a core curriculum survey of western philosophy course) who described himself as a Marxist, but when we actually did some readings from communist manifesto and das kapital didn't seem to hold it in particularly high este...
<|im_start|>user What causes people to act different when drinking than when sober?<|im_end|> <|im_start|>assistant From a medical perspective, alcohol affects different parts of the brain in different concentrations. The most sensitive area of the brain to alcohol is the prefrontal cortex. This is the area of the brai...
<|im_start|>user ELI5: Why do Asian countries have a much smaller rate of obesity than the US?<|im_end|> <|im_start|>assistant There are genetic predispositions involved in obesity, but also considerable differences in diet and culture. Obesity has been growing a lot in China, as its food supply industrializes and W...
<|im_start|>user ELI5: The universe either started at one point, or has always been there. How are either possible? That's a concept I could never really wrap my head around. Apparently this is called the "eternity of the world"? https://en.wikipedia.org/wiki/Eternity_of_the_world The way I see it there are two possi...