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<|im_start|>user What is the purpose of pointers in C/C++? What benefits do they provide?<|im_end|> <|im_start|>assistant Benefits compared to what? Pointers are needed for any piece of code that need to dynamically allocate some amount of memory (since it needs to track the location of the allocated memory which may ...
<|im_start|>user ELI5: how is it that in times of crisis major businesses will go bankrupt within months? Do they have no savings or what?<|im_end|> <|im_start|>assistant Well it depend on the business. What if they just made a new factory and so they have a lot of debt for some period of time when the crisis hit. What...
<|im_start|>user ELI5: When writing an amount of money, such as '£50' or '50p', why does the '£' come before the amount of money but the 'p' comes after? I guess the same logic applies to American currency with '$50' and '50c' (I don't have the symbol for cent on my laptop). I'm just wondering why money values have th...
<|im_start|>user ELI5: Why do some things burn and other things melt?<|im_end|> <|im_start|>assistant Most things will do both, but one is easier than the other. Melting is a state change from a solid to a liquid. This requires enough energy (heat) to raise the temperature high enough for the current atmospheric press...
<|im_start|>user CMV: The "Trolley Problem" has a clear "right" answer **Context** For those unaware of the "[Trolley Problem](https://goo.gl/images/uXskAG)", or its details, it is a thought experiment on the subject of morality. Essentially it states a hypothetical scenario: A trolley is headed down the tracks at h...
<|im_start|>user ELI5 - Someone please explain R-squared regression to me! Seriously. I will need it for work. I haven't been able to understand that shit from any online resource until now. Please ELI5<|im_end|> <|im_start|>assistant So you have a bunch of data, and you would like to put a line through it. The problem...
<|im_start|>user ELI5: How come the slightest typo on a flight ticket means you won't get on the plane/admitted into the country? Even correct spelled names in the in the wrong fields won't do, like first name in surname and vice versa. Where does the problem occur? Cause you have like atleast 5 - 10 customs agents and...
<|im_start|>user A Neuroscience major I know argued that the mind is separate from the body and modern Neuroscience backs that assertion up. Is consciousness rooted in physical processes? I apologize if this post doesn't belong here. I attempted to do my own research and I'm pretty sure this is a faulty claim. Her whol...
<|im_start|>user ELI5: What is a Workers Union and what do they do? Also, why are there jokes about being unionized? Is it a bad thing?<|im_end|> <|im_start|>assistant A union is basically an organization of workers that will collectively bargain in order to ensure that wages and working conditions are good, using the ...
<|im_start|>user ELI5: might be a /r/shittyaskscience question, but how the fuck does shaving cream work? what I mean is how does it expand so much? one drop of it can cover like half your face. what causes it to be so expansive?<|im_end|> <|im_start|>assistant It's important to understand that most gasses compress ver...
<|im_start|>user Want to get a solid understanding of the history of Christian philosophy, feel overwhelmed. Any advice? So, my primary philosophical interest is Christianity, and how Christian ideas should be interpreted in light of certain philosophers and the history of philosophy in general. My long-term goal is to...
<|im_start|>user Is it ethical for me to visit a student at their dorm? I work as an academic advisor at a community college. My supervisor sent me a text message earlier this afternoon giving me a student's name, ID number, and dorm room number telling me that the student has been struggling hardcore. Apparently the s...
<|im_start|>user ELI5: Why does the press respond so differently to Trump saying that McCain was not a hero than Bush saying the same thing about Kerry?<|im_end|> <|im_start|>assistant Two things: 1) Your suggestion probably contributes. People expect Trump to say ridiculous and offensive things. Media loves playing ...
<|im_start|>user ELI5: How does an optometrist create prescription lenses for an infant?<|im_end|> <|im_start|>assistant Lenses work both ways, so the Dr. can use a scope to look in the infant's eyes and try lenses to bring the back of the eye into focus. It won't be perfect, but if the infant has bad enough vision tha...
<|im_start|>user ELI5 Data Warehouse vs Lake vs Lakehouse I have a general understanding of warehouse vs lake, but how does lakehouse blend the two?<|im_end|> <|im_start|>assistant A data warehouse is a highly structured environment where data is stored. It has complex rules for indexing the data and a rigid metadata ...
<|im_start|>user Assuming the existence of a God (for the sake of argument), why would they need to create a universe? If they truly knew everything as the Abrahamic God is said to do, then isn't it more probable that we only exist in their imagination because why would a god bother creating a physical universe when th...
<|im_start|>user When ants drink water, do they have to bite it off because of surface tension?<|im_end|> <|im_start|>assistant I am a masters student of Engineering specialising in microfluidics. - / The mouth or jaws of the ant are composed of a rough surface together with very small hairs. This surface is thus hydr...
<|im_start|>user I can't seem to understand what a virtual image is in optics. Secondly, is a rainbow an example of a virtual image?<|im_end|> <|im_start|>assistant When you look at something, your eyes see and your brain interprets rays of light diverging from individual points of the object. This is called image for...
<|im_start|>user How come some beaches have pebbles and some sand? For example, my local beach has pebbles/stones but about 20 miles up the coast, the beach is sand. Apologies if this is the most stupid question of all time.<|im_end|> <|im_start|>assistant A beach's particle size depends on how far from the origin the ...
<|im_start|>user CMV: There is nothing wrong with intentionally trying to lose weight I've seen many dieticians claiming that all intenional weight loss is a bad idea. They cite studies that over 95% of people gain back the original weight and more after five years, and that weight cycling (losing and regaining weight)...
<|im_start|>user CMV: Blind Applications are the best way to eliminate any hiring discrimination What I mean by blind applications is that until a certain point in the hiring process, an applicant is simply a number with his or her relevant information attached to this number. Companies can then eliminate these anonymo...
<|im_start|>user eli5: Why can’t you combine a telescope and microscope? This is one of those things that I know doesn’t work, but I don’t know the exact reason WHY it doesn’t work. I remember asking a friend in 7th grade biology why I can’t just put a telescope up to a microscope to see even more detail, but he just l...
<|im_start|>user ELI5: What are the effects of antidepressants and anxiety medication on a healthy person? I'm wondering what are the effects of antidepressants( SSRI) and anxiety medication ( GABA) on a healthy person.<|im_end|> <|im_start|>assistant GABA drugs like benzodiazepines will have many effects common with a...
<|im_start|>user ELI5: Why are the leaked, internal emails from professionals so sloppy? Whenever there's a cache of internal email revealed through court or hacks, I'm always astounded by how poorly they're written. Not just informal, but horrible grammar and spelling. Given these are often from very accomplished an...
<|im_start|>user ELI5: Why are advanced stage colon cancer patients expected to live only 21.4 months after diagnoses? What actually kills them? (What will actually casue my death?)<|im_end|> <|im_start|>assistant At later stages, the cancer spreads to other systems, such as your pancreas, lymph nodes, etc. The most co...
<|im_start|>user Is there any credence to the idea that our universe could be microscopic in relationship to a much larger universe?<|im_end|> <|im_start|>assistant This is an idea looking for evidence. The evidence we have indicates no. You could likely twist the data into saying its possible, with an internally co...
<|im_start|>user ELI5: Why when your stressed are you more susceptible to illnesses?<|im_end|> <|im_start|>assistant When you are stressed, your body is producing certain chemicals and hormones to deal with that. These hormones are good for handling something in the here and now, especially the sort of threats we used ...
<|im_start|>user Is space the same as distance? And wouldn't distortions of space likewise distort everything within it to the same degree?<|im_end|> <|im_start|>assistant They are a little different. * Space is a set of points * Distance is a relationship between points In a 100 cm box, you can measure the distance...
<|im_start|>user ELI5: How does RAM work?<|im_end|> <|im_start|>assistant Imagine you have to do research in a library. So you (the CPU) go to the library (the computer) and walk though the ailes (the hard drive) collecting books (data) on the topic (the computing task). You take your books and sit down at a desk and...
<|im_start|>user ELI5: What are the strengths and weaknesses of macs vs PCs? (Objectively, please)<|im_end|> <|im_start|>assistant Macs are custom designed to work with a smaller set of hardware and software. So more attention is given to details that are hard to enforce in an open, generic platform. However, inevita...
<|im_start|>user Are there any viruses that humans must have in/on our bodies in order to stay alive?<|im_end|> <|im_start|>assistant It’s possible that some bacteriophages (viruses that infect bacteria) are important for keeping gut bacteria in check, though it might be hard to prove that one way or another. Alternat...
<|im_start|>user Why does paper lose structural integrity when wet with water, but not so much with oil?<|im_end|> <|im_start|>assistant The polymers that make up the cellulose in paper are hydrophilic. When they’re wetted, the water disrupts the network of hydrogen bonds that holds the fibers together. Oil will coat t...
<|im_start|>user ELI5: Pineapples have a 1 year growth time before it can be harvested. Why are they relatively cheap despite them having a long growth time?<|im_end|> <|im_start|>assistant There are a lot of plantations that grow them rotating fields so that they have an almost constant supply. Because of this supply ...
<|im_start|>user ELI5: How do artificial flavors work? For example, how is it my yogurt tastes like "boston cream pie"?<|im_end|> <|im_start|>assistant Food scientists spend a lot of time researching exactly what kinds of chemicals produce what kinds of flavors, and then trying to synthesize chemicals they think might ...
<|im_start|>user I think that not all cultures are equal. Some are definitely superior to others. CMV. I read a recent TIL article about how certain aboriginal tribes will form holes in the bases of boys' penises when they come of age. The hole is kept open with a splinter. There's just no way that all cultures are e...
<|im_start|>user ELI5: How are "albums sold" determined in this era of music streaming?<|im_end|> <|im_start|>assistant The music industry has a specific unit for that: the "Album-equivalent unit". A single physical album sale is defined to be equivalent to ten song downloads, or 1500 song streams. So, if you as an a...
<|im_start|>user CMV: Privilege shouldn't be a source of shame Exactly what the title says. Personally, I am just wondering why it would even be a good thing for the so-called privileged to be looked down upon. Isn't the entire point of striving in life supposed to be all about attaining something more? Privilege itse...
<|im_start|>user ELI5: why are scientific paper on two columns? It seems all papers use this format...<|im_end|> <|im_start|>assistant Ease of reading, as a carryover from the days when they could only be printed rather than available to read on a controllable screen such as a monitor. Most scientific papers pack a lo...
<|im_start|>user ELI5 - Islamic/ Sharia Banking I understand that usury (interest) is not allowed but I'm still unclear on the work arounds.<|im_end|> <|im_start|>assistant in some cases it is handled the same way that christian usury standards were circumvented in the middle ages: the "late" fee. a lender would charge...
<|im_start|>user Is there any reason why all the gas giants in our solar system formed in the outer solar system? Why didn't any gas giants form in the inner solar system?<|im_end|> <|im_start|>assistant What's important here is a concept known as the "snow line". Water can only exist in two states out in space - as a...
<|im_start|>user ELI5: Why can you grow plants hydroponically but if plants in soil get too much water they get root rot and die?<|im_end|> <|im_start|>assistant Plants’ roots need oxygen, as counterintuitive as that seems. In soil, there are a lot of tiny gaps that hold air. When you over water a plant those gaps sta...
<|im_start|>user Is there a name for the philosophical approach of deconstructing concepts? This is a poorly worded question I’m aware. For example, when asking “what is a chair”, someone might say “a seat with four legs” but then someone will deconstruct that idea further and come to the conclusion that there is no su...
<|im_start|>user Why does burnt food stick to the pan and why does soaking in water unstick it? I was trying to wash a frying pan after I burnt some chicken and it felt like trying to excavate concrete.<|im_end|> <|im_start|>assistant I believe this is a combination of two major factors. First, burning the food dehydra...
<|im_start|>user If a space ship is going 99% speed of light time is slower for them according to the earth (I think) but if the space ship is out reference point then the Earth is going 99% the speed of light. So wouldn't time be going slower on earth in relation to the ship? So 1 earth hour is only .5 hours on the sh...
<|im_start|>user Who cares if moral realism is true? I've never seen this assumption formalized in the literature, but it seems to me that there is a general feeling that it is "important" whether moral realism is true or not. Without being overly-general about the personal values of individual philosophers, the poten...
<|im_start|>user ELI5: How the education system in Germany works I went over the German education system articles on Wikipedia but I am thoroughly confused even with the diagrams. All the different types of schools and the German words are very confusing. Then there are different laws for each type of school and differ...
<|im_start|>user ELI5: Lately, I've been getting crank calls where, whether I pick up or not, the caller hangs up immediately leaving no message or insistance that I call someone else or anything. What is the purpose of telemarketing like that?<|im_end|> <|im_start|>assistant One reason an organization or entity would ...
<|im_start|>user ELI5: There's this document on the FBI website that seems to confirm UFO stuff. What's going on? https://vault.fbi.gov/UFO/UFO%20Part%201%20of%2016/view#document/p22 If it really is some declassified document that reveals the existence of aliens, I'm sure it would have been all over the news, and I wo...
<|im_start|>user ELI5: How can gravity be so weak (10^29 times weaker than the weak force) at the subatomic level, but at the same time be the dominant interaction at the macroscopic scale?<|im_end|> <|im_start|>assistant Because everything that has mass exhibits a gravitational field and the gravitational field is pur...
<|im_start|>user ELI5: What is inflation/interest rates and how do they affect an economy in the long run? Reading about economic history. I have a vague idea about what "inflation" and "interest rates" mean, but I don't know how exactly are they supposed to affect the economy positively/negatively. From what I've he...
<|im_start|>user Can every philosophy be defined by a set of axioms from which the rest of the system is derived? If so, shouldn't the axioms be the primary field of debate and discussion?<|im_end|> <|im_start|>assistant There have been attempts to axiomatize and formalize moral systems (Deontic Logic, for example). B...
<|im_start|>user ELI5: What is the mechanism that allows birds to build nests, beavers to build dams, or spiders to spin webs - without anyone teaching them how? Those are awfully complex structures, I couldn't make one!<|im_end|> <|im_start|>assistant Generally speaking, there are two primary drivers for animal behavi...
<|im_start|>user How are nutrients/chemicals in food dispersed to where they are needed in the body? For example, how does the calcium in milk you drink find its way to enamel in your teeth, or anticoagulant chemicals in medicine reach the blood stream?<|im_end|> <|im_start|>assistant Almost everything is extracted fro...
<|im_start|>user ELI5:Why are Hindi and Urdu considered different languages, and not dialects of the same language? From what I can tell, most native speakers of one language can understand the other, and they share most words/grammar structures. Why are they separate languages and not dialects?<|im_end|> <|im_start|>a...
<|im_start|>user ELI5 How do the medicines like paracetamol or ibuprofen work? Do they help the brain by making it ignore the pain (suppressing) or by actually fighting the cause of pain?<|im_end|> <|im_start|>assistant Ibuprofen works by stopping an enzyme from creating chemicals called prostaglandins that can cause p...
<|im_start|>user My professor asked me for something that should be so simple that I can’t mess it up, but here we are. Hi, all. I’ve just completed my first class toward obtaining my master’s degree, and it went really well. This whole “being in grad school” thing is extremely new to me, so I apologize if the answer...
<|im_start|>user CMV: the gender equality activism is a sign of tunnel vision privileged and entitled communities suffer from. Current gender equality fights are strongly focused on evening the gap in typically high tier jobs. These are available only to people from families who can afford college education for their d...
<|im_start|>user ELI5: What is meant by a "Negative income tax"? (xpost from r/askeconomists) I have a fair idea how such a tax works (In theory anyway), but I'm having trouble putting it into words. I have an exam on Wednesday and may have to write a paragraph or two on the topic. If anyone here could help it would be...
<|im_start|>user ELI5: Why are employers the ones providing insurance under Obamacare? In the wake of all of craziness following the Hobby Lobby ruling earlier this week, I'm very confused as to why employers are involved in this at all. Are all employers supposed to provide healthcare? Why is this even an issue in the...
<|im_start|>user Can temperature decrease in a closed system while entropy increases? For example if I have a bowl of water at room temperature, it will slowly evaporate, will that increase entropy while decreasing temperature, or will the pressure increase keep the temperature the same? Is there some other way to do i...
<|im_start|>user [Marvel/DC] How does superhero marking work? For example, I was reading a Fantastic Four comic, and Reed was eating Hulk Smash cereal. It got me wondering. Do they have to ask for permission to do things like that? If so, how do companies get certain characters to agree to it? Maybe a guy like Superma...
<|im_start|>user ELI5:Can someone ELI5 the difference between a Will, Trust, and an Estate? Can someone ELI5 the difference between a Will, Trust, and an Estate? Edit: Thank you everyone for the explanation!<|im_end|> <|im_start|>assistant A will is a document that describes how an estate should be handled once the ho...
<|im_start|>user Was working at Jimmy John's today when I customer came in and was severely allergic to cucumbers but could eat pickles, how's that possible? Top clear up people saying he just said this to get us to 100% not put cucumbers on his sandwich he had us change gloves and cutting boards. Also said he used to ...
<|im_start|>user Has any significant problem of modern philosophy ever been "solved" in the sense that most scholars agree on one position, or is it always an ongoing argument and a multitude of opinions? edit: thank you to everyone for your answers! Many interesting takes and references.<|im_end|> <|im_start|>assistan...
<|im_start|>user CMV: Use of unethical research is not in itself unethical Let us assume that someone - let's call them Dr A - conducts unethical but otherwise sound research that provides useful information or insight into a problem, say a disease. If someone else - let's call them Dr B - uses said information in thei...
<|im_start|>user How do scientists know an animal can see colors we humans can't? (And vice versa) Yesterday I read a comment that said that shrimps can see colors humans can't see, don't know if it's true, but I wondered how they can know that, I mean, they can't see the color. And also there's the belief that dogs se...
<|im_start|>user [Cyberpunk: Edgerunners] What was Lucy pick pocketing? Are those chips some form of wallets or something else? Not sure if those were wallets... or if she's just selling implants.<|im_end|> <|im_start|>assistant Datashards containing money. Datashards can contain all sorts of information. videos, imag...
<|im_start|>user ELI5: Why are humans so bad at giving birth? Women die in childbirth fairly often, even in developed countries. Without proper sterilization, babies are subject to infection at birth. Even if all goes according to plan birth is considered one of the most painful things a human goes through in their l...
<|im_start|>user Is the Crash Course Economics series a good way to learn economics?<|im_end|> <|im_start|>assistant I would say yes, although it will primarily help you with understanding academic economics, in that it helps you pass your economics classes, specifically in regards to the non-math based side of economi...
<|im_start|>user In Marx’s writings, what is the distinction between concrete labor and abstract labor? Why is this is important for his larger critique of the commodity form? What do you think?<|im_end|> <|im_start|>assistant Concrete labor is what goes on in the act of producing things. Qua concrete, it is always lab...
<|im_start|>user [Judge Dredd] What about other, non-criminal areas of the law? OK mods, I'm hoping that, like a Judge, you'll allow me for a bit of an indulgence. I'm making the argument that /r/AskScienceFiction can potentially expand into /r/AskSOCIALScienceFiction. And so, my question: OK, so my knowledge of the ...
<|im_start|>user Eli5: How do historians/scholars translate a totally unknown language when they don't know any of the words meanings? I've always been curious about this as, to me, and my limited understanding, this sounds impossible and a recent documentary prompted the thought. It's about the ancient sumerians ([i...
<|im_start|>user ELI5: Why is being inbred often associated with deformities of the body/mind/etc?<|im_end|> <|im_start|>assistant It has to do with genetics, mutations, and dominant/recessive genes. If a mutation happens in a person's DNA, they can pass it on to their children. But, if the child gets one "good" piece ...
<|im_start|>user [Mass Effect] What are some everyday, non-military applications of the Mass Effect?<|im_end|> <|im_start|>assistant The mass effect has many applications and usages throughout the galaxy, ranging from utility, military and pleasure. One such application is the one used on the citadel to help simulate ...
<|im_start|>user ELI5: Why are pet fish okay living in perfectly clean, filtered water, when they normally come from natural bodies of water that are not so pure?<|im_end|> <|im_start|>assistant Firstly, because it's not just about cleanliness it's also about oxygen content. Natural bodies of water will absorb oxygen f...
<|im_start|>user Would businesses benefit by raising wages so that workers can afford to spend more money on their products? I heard that Henry Ford paid his employees relatively high wages for this reason.<|im_end|> <|im_start|>assistant Firms that pay businesses wages higher than the equilibrium rate is known as **ef...
<|im_start|>user ELI5: How do games render particle effects so much faster than programs like after effects? I understand that while games have preset effects, programs needs to calculate every particle. However the games particle effects arent the same everytime which I guess means that each particle is also calculate...
<|im_start|>user "Don't do an unfunded PhD" - always true? I guess I'm not the only one who has heard this piece of advice (perhaps you may call it a 'rule'): if you're not being funded, don't do a PhD. What is the basis for this? If you can afford to do it, why not go ahead? Has anyone here self-funded their PhD? ED...
<|im_start|>user ELI5: How are unwitnessed behaviours (such as an adult bird building a nest the chick never saw the construction of) passed onto the next generation?<|im_end|> <|im_start|>assistant Nest building is a species-specific innate behavior, birds don’t learn how to build a nest, they’re born with an instinct...
<|im_start|>user [superman] Aside from the Anti-Superman stuff, is Lexcorp a legitimate business?<|im_end|> <|im_start|>assistant Lexcorp is a large corporation with many areas of business, including construction, pharmaceuticals, military supply, and many other fields. The majority of it operates mostly within the la...
<|im_start|>user What gives things color on a molecular level?<|im_end|> <|im_start|>assistant It has to do with how compounds interact with visible light. Colors occur when a substance absorbs or refracts specific frequencies in the visible spectrum, which depends on specific physical or electronic properties of the c...
<|im_start|>user Why can solar panels only convert roughly ~20% of sunlight received into energy? What will it take to increase this percentage? I recently learned that only ~20% of sunlight received is converted into useable energy. Why is this? What will it to take to receive more energy from the solar cells? Thanks...
<|im_start|>user How do space vehicles know how to orientate themselves? (Specifically unmanned spacecraft) Do they use a gyroscope system? Or the planets magnetic field? (I got curious watching a Scott Manley video on YouTube, he talked about the pitch and yaw of the recent ‘Astra’ rocket launch and I realised I’d ne...
<|im_start|>user Eli5 - If a person with Leukemia donates blood to a normal person, how come the other person doesn't contract Leukemia also?<|im_end|> <|im_start|>assistant Leukemia is a bone marrow disorder. That is where the disease originates from- the over production of certain leukocytes. Most leukocytes don’t ha...
<|im_start|>user CMV: Shaming someone for a lack of empathy is just as bad as shaming someone for any other inborn trait It seems like it isn't uncommon for people to resort to using "lack of empathy" as an insult, especially when discussing social issues. It's my understanding that empathy is largely an immutable per...
<|im_start|>user ELI5: Do college students get paid for breakthroughs/discoveries in science, archaeology, etc? It seems quite often that I'll read an article with a statement like "Students at ____ University recently discovered a new gene" or something along those lines. Would these students get paid for discovery (d...
<|im_start|>user What makes a programming language "good" for certain tasks? For example, I've heard that Python is a "good" language for data analysis, and C# is for building apps. Theoretically, all programming languages should be able to do the same things, so what makes one better for a certain task? Is it the stan...
<|im_start|>user ELI5: What is Stoicism? Is it like "I don't give a f**k, bring it on" thinking?<|im_end|> <|im_start|>assistant Stoicism is mainly about learning to cope. Originally it included a whole theory of the universe about fate, determinism and free will, theology... it's been called fatalistic and pessimistic...
<|im_start|>user If photons are smaller than atoms, why don't they pass through solid matter? Aren't atom's mostly empty space, between the nucleus and the electrons? Shouldn't photons pass through those spaces and penetrate basically any form of matter?<|im_end|> <|im_start|>assistant The closest thing to "size" for a...
<|im_start|>user What exactly is "Information"? In many other posts they say that information can not travel faster than the speed of light, but what exactly is information and what can be considered not information.<|im_end|> <|im_start|>assistant At its most fundamental, information is any propagation of cause and ef...
<|im_start|>user ELI5: Why do sugar granules dissolve faster in liquids when you stir them with a spoon, than just leaving it to sit?<|im_end|> <|im_start|>assistant When something starts dissolving in water, it increases the amount of stuff dissolved in that particular part of water. The more stuff is already dissolve...
<|im_start|>user ELI5: How do game makers know what computer specs you'd need to run the game? My guess is that they use different PCs and make the game at different quality but that'd take too long so idk.<|im_end|> <|im_start|>assistant Games undergo an optimization process to ensure they operate reasonably well on a...
<|im_start|>user ELI5:What role does hydration play in being tired?<|im_end|> <|im_start|>assistant Water is great for moving things around in the body, such as blood. If you don't have enough water your muscles can't move quite as well, and (for a personal anecdote) you could even get a headache as well as feeling tir...
<|im_start|>user ELI5:Where does innate shyness come from? Never really knew any simple scientific explanation behind shyness which is hindering a lot of people from become the best version of themselves growing up and even as adults.. Is being shy hereditary or is it developed from childhood? Some kids start off supe...
<|im_start|>user ELI5: Why are there so many different bolt and screw designs (Hex wrenches, flathead, etc.) ? Wouldn't it be easier to have one universal tool?<|im_end|> <|im_start|>assistant No, All have different uses, and in turn are optimum for different types of jobs. Moreover cost can also be a driving factor fo...
<|im_start|>user [Star Trek] why do the starships engage in combat from such close ranges? I understand the federation is on peacekeeping mission and normally don't expect combat but I imagine it would pop up.<|im_end|> <|im_start|>assistant Most starfaring races in contact with the Federation tend to use phasers or si...
<|im_start|>user ELI5: why is it impossible for animals to grow to certain sizes without collapsing under their own weight? If you just scale everything up 1:1, why can’t they just function normally at increased sizes?<|im_end|> <|im_start|>assistant Imagine a cube with each edge of length 1. The sides have an area...
<|im_start|>user Since both a WiFi signal and light are electromagnetic radiation, can I simulate the range of my WiFi Access Point by replacing it with a bright light in a pitch-dark night? I would probably need to leave all doors open since the WiFi signal has no trouble to shine through them, but it seems that concr...
<|im_start|>user ELI5: A common model for gravity’s effect on space is a sheet of elastic material with some stuff put on it to make wells and such. But how does that apply in 3D?<|im_end|> <|im_start|>assistant The whole "rubber sheet" model is effective for the limited number of dimensions that we can visually repres...
<|im_start|>user If you could start your PhD life from scratch, what one thing would you do differently? Hindsight hour!<|im_end|> <|im_start|>assistant 1. Start therapy. Mental health is the most important thing and imo the best determinant of success in grad school and in life. Also student insurance is sweet. 2. N...