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<|im_start|>user Could someone please give a scenario in which the cardinality of an infinite set becomes important? Could someone describe for me a case in which it would be necessary to denote the cardinality of one infinity as opposed to that of another, and what branch of mathematics this falls under? I'm having tr...
<|im_start|>user Why is gravity able to accelerate an object with high static inertia (heavy object) at the same rate as an object with low static innertia (light object)? e.g. A 100 ton ball will be accelerated at the same rate as a 1 pound ball. One would think that the 100 ton ball has much more static inertia than ...
<|im_start|>user What would have happened to Oil if humans had never drilled it? Does it become a rock if left alone? Become a gas that bubbles though the cracks to the surface? or has not enough time passed yet to say?<|im_end|> <|im_start|>assistant Buried hydrocarbons work their way through the carbon cycle in one o...
<|im_start|>user ELI5: Why are stars and planets named with weird combinations of letters and numbers? I was reading this article (https://www.vice.com/en/article/z34883/scie-discover-huge-extragalactic-structure-in-zone-of-avoidance) and it talks about how a new galaxy cluster is named "VVVGCl-B J181435-381432" Does ...
<|im_start|>user [Harry Potter] Why does a school textbook give information on how to create Basilisks *Fantastic Beasts and Where to Find Them* states, in no uncertain terms, that the breeding of Basilisks is illegal, and for good reason. Since they are uncontrollable except by Parselmouths, they are as dangerous to m...
<|im_start|>user CMV: Divorces should be adjudicated based upon the laws under which the marriage originated, not the laws under which the marriage ended. If you look at the legalities of marriage and put aside all the emotional aspects, marriage is really just a contract between 2 people. And that contract is recogni...
<|im_start|>user ELI5:why does stress cause diarrhea like symptoms?<|im_end|> <|im_start|>assistant These symptoms occur due to your body's innate response to stress, which is to move blood away from your gut (stomach, intestines) to your muscles and other vital organs causing gastrointestinal distress if you have food...
<|im_start|>user ELI5: the concept of a statute of limitations on violent crimes, why? Shouldn’t they always be eligible for persecution?<|im_end|> <|im_start|>assistant The main reason is to ensure the best evidence is presented in any case. The longer a case goes on the more unreliable the evidence becomes, ie witnes...
<|im_start|>user ELI5: If i were to use a random number generator, and then go back in time to just before i used it, would i then get the same number, or a different one?<|im_end|> <|im_start|>assistant Depends on whether you were using a true random number generator that derives its number from things like atmospheri...
<|im_start|>user Eli5 How/Why do calluses form?<|im_end|> <|im_start|>assistant Your body has evolved, on a microscopic level, to adapt to repeated damage by repairing itself to be stronger than it was before. In the case of callouses, your skin responds things like pressure, friction, tiny abrasions and breakages by ...
<|im_start|>user Why are clouds all fluffy on top but flat on the bottom?<|im_end|> <|im_start|>assistant A very cool way of looking at clouds is picturing them as the effect when warm moist air and cold air mix. Add in the fact that warm air rises because it's less dense, and warm sea-level-pressure air can hold more ...
<|im_start|>user How many tumours/would-be-cancers does the average person suppress/kill in their lifetime? Not every non-benign oncogenic cell survives to become a cancer, so does anyone know how many oncogenic cells/tumours the average body detects and destroys successfully, in an average lifetime?<|im_end|> <|im_sta...
<|im_start|>user ELI5: How do pyramid schemes work, and why are they illegal?<|im_end|> <|im_start|>assistant Pyramid schemes work in a way usually where the person / people on top benefit from the amount of money they take away from the people below them, usually by selling them items without or with little worth (It...
<|im_start|>user ELI5: How do countries that have no natural resources and completely rely on import even survive economily?<|im_end|> <|im_start|>assistant They buy in raw materials relatively cheaply, add value by manufacturing facilities and expertise , then sell at a profit. Britain used to be known for manufacture...
<|im_start|>user ELI5: what's the deal with rap music? What makes rap music, and what's the criteria for "good" rap music? I listen to rap from time to time, and do enjoy it, but I don't exactly understand why it's "music." Although there are instrumentals, there are no pitches to the lyrics. Is it just supposed to be ...
<|im_start|>user ELI5: Why is an open-source OS considered more secure than a closed source?<|im_end|> <|im_start|>assistant For open source systems, the computer code that makes up that system is public, and anyone can read through it. So if someone has left some sort of backdoor or security flaw, it can be caught and...
<|im_start|>user [Babylon 5] Considering all the mayhem that came through the Jump Gate why didn't Sheridan mine the living hell out of the entrance? Especially during the Civil War period? Make them command-detonated mines to avoid accidents and B5 is much more secure. Plus Sheridan blew up the Black Star using a n...
<|im_start|>user Why do we design vehicles to be aerodynamic (laminar?) while dimpled golf balls are designed to create turbulence to get them to travel farther? Wouldn't inducing turbulent flow on a vehicle reduce drag and increase fuel efficiency?<|im_end|> <|im_start|>assistant The dimples on golf balls were added a...
<|im_start|>user ELI5: Why Is Diesel Preferred Over Petrol for Large Vehicles?<|im_end|> <|im_start|>assistant Torque, or how much force a motor can apply to the wheels at a given RPM. Diesel engines have a much higher compression ratio that gasoline engines. They work by squeezing their air-fuel mixture so much that...
<|im_start|>user [Star trek]Why don't tricorders have bigger screens? http://tehne.com/assets/i/upload/event/medical_tricorder_2369_0.jpg<|im_end|> <|im_start|>assistant There are multiple possible explanations. Based on how we see them used, they probably have some sort of advanced artificial intelligence that automa...
<|im_start|>user [Chemistry] Are frozen vegetables any less healthy than fresh ones? Does anything happen at a molecular level when you freeze vegetables that makes them process differently in our bodies?<|im_end|> <|im_start|>assistant Well, much like cooking, freezing weakens and ruptures cell walls. Making the veget...
<|im_start|>user Are different cultures more prone to closer friendships? I got into a discussion with a friend who stated that she thinks people in wester cultures like the US would not sacrifice as much for their friends and don't have as tight knit bonds. There is a lot to unpack here, like how to operationalize "c...
<|im_start|>user ELI5 How do birds (ducks, geese etc.) not freeze when swimming and dunking their heads in ponds in the wintertime when it’s - degrees out?<|im_end|> <|im_start|>assistant They can be hurt by exposure, but they have evolved methods of (usually) avoiding it. For one, water birds have a thick layer of fe...
<|im_start|>user ELI5 What causes you to see things out of the corner of your eye when nothing is actually moving or there? Why do people have the sensation of seeing something moving out of the corner of their eye when there isn't actually anything there or moving?<|im_end|> <|im_start|>assistant There could be any nu...
<|im_start|>user ELI5: Why are Europe and Asia considered two continents?<|im_end|> <|im_start|>assistant The ancient Greeks first developed the idea of a continent. They saw that the Mediterranean divided Europe from Africa, the Red Sea divided African from Asia, and with their limited knowledge of geography, assumed...
<|im_start|>user ELI5: how did we get to understand any extinct languages? For instance hieroglyphs or other symbol based languages. How did we find out what those symbols mean, when we’ve got nothing to compare them to?<|im_end|> <|im_start|>assistant We need something like the Rosetta Stone, a stone that had the same...
<|im_start|>user f(x) = e^x, f(x) = sin(x) and f(x) = 0 are functions which arrive at itself again when derived (multiple times). Are there more such functions? Is this a relevant class of functions?<|im_end|> <|im_start|>assistant You are looking for functions that satisfy the differential equation &gt; f^([n]) = f ...
<|im_start|>user What does 20/10 vision mean? I just had a doctors appointment a few weeks ago and got a score of 20/10 on the eye test. I know the "average" score is 20/20, so does that mean my vision is twice as good as a normal persons? And what IS twice as good? 150 megapixels? Really curious.<|im_end|> <|im_start|...
<|im_start|>user How long would the communication delay be from Mars to Earth? How long would the delay in communications be through audio and video from a person on Mars to a person on Earth?<|im_end|> <|im_start|>assistant The distance between Earth and Mars depends on where they are in their orbit, but it can vary b...
<|im_start|>user Why graphs? So, in a lot of my programming classes at my university, we have discussed graphs. Graphs, in this context, are collections of nodes connected by “edges” (or lines). Why do we talk about graphs so often? Are graphs useful in computer science? If so, what are they used for?<|im_end|> <|im_st...
<|im_start|>user ELI5: Why do dreams feel much longer than they actually are?<|im_end|> <|im_start|>assistant Studies have shown that our perception of how much time has elapsed is significantly influenced by how memorable the experiences during that time were. If you drive to work the same way everyday, you'll probabl...
<|im_start|>user CMV: I think renting a house/apartment isn't more expensive than buying This was a though choice between /r/theydidthemath and /r/cmv but I think there's so many ins and outs that it's close to being an opinion. I'm currently renting an apartment and I've been doing so for a few years. Everyone keeps ...
<|im_start|>user Why aren't polar deserts sandy? I realise there's no requirement for a desert to be sandy, but I'm wondering if there's a particular reason that the polar deserts on Earth are nearly all rock or gravel rather than having sand. Is there a reason for it, or is it just one of those things? Is a sandy pola...
<|im_start|>user Did eyes evolve only once on Earth? Is there something about the small band of "visible" light that makes it optimal for eyes to evolve to see? Or is it just a coincidence that most animals see in the same spectrum? I have heard of animals that see infrared &amp; ultraviolet. But they all see (or so I ...
<|im_start|>user Can you publish a paper excluding one of the authors? I have completed an internship and the paper is due to be published. It was between myself, another intern and a supervisor. However, the supervisor and the intern are still in touch and it appears that she took credit for the work I have done. The...
<|im_start|>user ELI5: Unleaded gasoline Why is it that almost all (USA) gas stations say unleaded gasoline? I know that in the old days cars needed leaded to run. Now cars are better, what happened?, More specifically what technology improvements for cars made leaded gas obsolete? (Other than electric cars) It see...
<|im_start|>user CMV: Finances/fame shouldn’t be able to enhance your favor in terms of the justice you’re served for said crime in America For the most part, I feel as a country, we have a decent justice system overall. There are a bunch of flaws within the justice system, but there’s flaws in every system so that’s n...
<|im_start|>user [Paddington Bear] Why does Millicent think killing and taxiderming Paddington will bring her wealth and fame? The British public don't seem to view Paddington as any different to a human child. In the 2014 film, Paddington Bear, taxidermist Millicent Clyde repeatedly tries to capture Paddington, a sapi...
<|im_start|>user ELI5: How come my twins have blue eyes when both my husband and I have brown eyes. We have 3 year old twins (non identical) who both have the exact same shade of blue eyes. I have brown eyes and my husband has hazel. Their paternal grandfather has blue eyes, their maternal grandparents have brown eyes....
<|im_start|>user My former P.I/Thesis Advisor went nuclear against the whole lab, me included. Advice appreciated Tl/dr: I can't get a rec. letter from my thesis advisor because we do not see eye to eye anymore and I don't think it is my fault that this has happened. Roughly two years ago I joined a bioinformatics lab...
<|im_start|>user How does a stem cell know what body part to become naturally? What type of communication happens inside an embryo? What prevents, lets say, multiple livers from forming? Is there some sort of identification process that happens so a cell knows "okay those guys are becoming the liver, so I'll start form...
<|im_start|>user CMV: Food stamps should be limited to healthy foods only Food stamps are a very effective program. It only cost the government 4 billion dollars, whereas Medicaid cost the government 500 billion dollars. Food stamps are probably one of the best welfare programs looking at it from an investment standpoi...
<|im_start|>user ELI5: How can airline carriers get away with overbooking flights? Financially, isn't it a drain on resources to compensate affected passengers? Legally, are they somehow covered?<|im_end|> <|im_start|>assistant They use statistics concerning past no-show rates to determine how to extract maximum profit...
<|im_start|>user eli5 Why do we read from left to right? Unlike Hebrew which is the opposite. But they're both read from top to bottom. How was this established as the "natural" way to read?<|im_end|> <|im_start|>assistant Short answer: because most people are right-handed. For the first written languages such as Heb...
<|im_start|>user ELI5 how pulse detection apps work I have a heart rate monitor app on my phone which works pretty gosh darn well. I place my finger over my phone's camera and LED flash and it accurately measures my heart rate in real time. My nurse girlfriend has taken my actual pulse at the same time and it's alwa...
<|im_start|>user If we have a moral imperative to self quarantine, do we have an imperative not to drive cars? It seems that if you're making the argument that we must self quarantine against the corona virus and that you are morally responsible if you infect someone with it (which I would agree with) then we must self...
<|im_start|>user [40k] I'm a Space Marine who wants to follow the example of Svane Wulfbad and turn myself Chaotic. How do I do this?<|im_end|> <|im_start|>assistant Oh that's easy -- just give me your full name, location, chapter, and a recording in your own voice stating your intentions. A Chaotic emissary will get b...
<|im_start|>user ELI5: How does witness protection work with education/certificates? For example, if a guy has a specific degree like a Ph.D. in underwater cat breeding or served in the military then goes into witness protection, how do they maintain their degrees / service benefits / other awards?<|im_end|> <|im_start...
<|im_start|>user ELI5: Why do 3D Movies look darker than 2D Movies?<|im_end|> <|im_start|>assistant 3D movies work by projecting two different images, each polarized in a different direction. The glasses that you wear have two polarized lenses that match the polarization of one of images. So each lens blocks one of t...
<|im_start|>user Let's say you stay up for a week? Why does your body still only need less then 12 hours to feel right again.<|im_end|> <|im_start|>assistant Feel right and function are two different things. 1. People can get used to the feeling of being overtired to the point of feeling normal. 2. The first parts o...
<|im_start|>user ELI5: Why don't cars have direct drive transmission instead of a gearbox? Wouldn't direct drive be more efficient/less complex than an engine with a transmission?<|im_end|> <|im_start|>assistant A gasoline or diesel engine has an ideal speed that it wants to be running at. This is usually somewhere in ...
<|im_start|>user What are some core principles to keep in mind while coding I'm always wanting to consider things to think about which will keep my level of code high. What are the essential things to code by?<|im_end|> <|im_start|>assistant Simplicity and readability. The simpler the code is, the less room for error...
<|im_start|>user Eli5: Why aren't baseball fields all the same size? Why wouldnt there be a regulated size every field has to have<|im_end|> <|im_start|>assistant Because the rules allow for stadiums to design fields within certain parameters. That design is in order to benefit the team. Baseball teams play half thei...
<|im_start|>user [Star Wars] How can clones tell each other apart?<|im_end|> <|im_start|>assistant They have numbers, they get tattoos and strange haircuts, they paint and mod their armor, they carry specialized weapons, and sometimes you can just know someone well and be able to tell them from people who look like the...
<|im_start|>user CMV: According to a utilitarian ethics system, certain forms of slavery are permissible (perhaps a moral requirement), and this makes utilitarianism a dangerous philosophy. As I understand it, the basis for utilitarian philosophy is that whatever action produces the most happiness in the world is good,...
<|im_start|>user If you saw a Tsunami coming towards you, say 50ft waves, would it be better to run towards land, or just stay where you are to dive in and swim upwards? So waves are coming at you, better to run away, or stay deeper out if you are a good swimmer?<|im_end|> <|im_start|>assistant Unlike waves, tsunamis a...
<|im_start|>user How are published review articles regarded as an undergrad, as opposed to primary/lab research? Hello everyone, I hope this is the right place to ask, and thanks for reading! Due to covid, I didn't get the chance to do real experimental research for my final year project in STEM-research. Therefore, I...
<|im_start|>user ELI5: How exactly does the Atomic Clock work? What material does it use to power it, if I'm wording this correctly...? What would happen if it was off by a few seconds? Would a new position effect the time displayed?<|im_end|> <|im_start|>assistant An atomic clock can be based on several different desi...
<|im_start|>user If the earth was placed at the border of our universe (some planet must have ended up there?). Will half of the sky be completely black? Or what will we see or be able to measure from the other side?<|im_end|> <|im_start|>assistant The observable universe — which is often what people mean when they say...
<|im_start|>user In the absence of artificial light, do moths attempt to fly towards to the moon?<|im_end|> <|im_start|>assistant Insects, including moths, do not fly directly to a light source, but rather use it as a beacon, and try and maintain a constant angle to it. With the moon at effectively infinity, this give...
<|im_start|>user ELI5: What is the real world significance/ benefit of calculus? I stink at math and would like to understand!<|im_end|> <|im_start|>assistant The most unhelpful, but most true answer: Basically everything. Almost everything runs on, is modeled by, understood using calculus to some extent. Newton's sec...
<|im_start|>user ELI5 how Tilt Shift photography works. How does it make things look like model landscapes? Every time I see one I don't even fathom how it does that<|im_end|> <|im_start|>assistant What you're asking about is actually known as "Tilt-shift false miniaturisation". Tilt-shift lenses allow you to adjust th...
<|im_start|>user What careers/industries meet at the cross-section of Economics and Law? Soon to be Law Student with a background in Economics/Finance, what opportunities are there for attorneys who want to work in the realm of economics? Academics/ Academic Writing? Antitrust? Legislature?<|im_end|> <|im_start|>assist...
<|im_start|>user ELI5:Why is it important to keep finding big prime numbers ?<|im_end|> <|im_start|>assistant And, there are practical uses as well. - There are mathematical techniques that turn prime numbers into locks. The bigger the number, the stronger the lock. - Some of these locks make keys from reasonabl...
<|im_start|>user Are there any cases of governments having good relations with their Indigenous populations where the majority of the government is not Indigenous? Coming from the perspective of North America where indigenous issues are deeply problematic, I wonder if there are case studies in other countries that Cana...
<|im_start|>user eli5 why does manure make good fertiliser if excrement is meant to be the bad parts and chemicals that the body cant use<|im_end|> <|im_start|>assistant To put it very simply: animals and plants have different dietary needs. What’s waste for the one is nutritient for the other. You can also think about...
<|im_start|>user How do supercomputers work with many CPU's and GPU's? Normal computers have problems making SLI run and I think its actually becoming less of a thing lately, yet supercomputers have truck loads of GPU's and CPU's all working together to render some massive weather data or something else? Why cant I ...
<|im_start|>user ELI5: What happens to the leg muscles during leg lengthening surgery &amp; recovery? Do they stretch permanently? Is muscle taken from somewhere else?<|im_end|> <|im_start|>assistant When bones are lengthened, the stretch on the tissues causes them to grow and lengthen. We know that his happens normall...
<|im_start|>user Why did China and India become so heavily populated? .<|im_end|> <|im_start|>assistant A: They're very large countries to begin with in terms of geographical area. B: They both have multiple large river systems which can support large scale agriculture C: They both have had centralized governments for...
<|im_start|>user The Role of Judas in the Bible Dismantles the Belief in a Loving Christian God. CMV. It's been noticed by many readers of the bible that the acts of Judas are difficult to judge. If Judas had never betrayed Jesus, there would have been no path to the crucifixion. There would have been no resurrection. ...
<|im_start|>user AskScience AMA Series - IAmA Bioinformatics guy that works with DNA and protein sequences all day and works on things like the Human Microbiome Project. AMAA! After posting [mine on /r/battlestations](http://www.reddit.com/r/battlestations/comments/ol31r/scientistcoder_here_vertical_monitor_setup_for/...
<|im_start|>user [Animorphs] Z-space morphing and mass transfer... Hey there! So, I'm in the middle of re-reading animorphs, and currently in book 10, 'The android.' In chapter 9, at the end, Ax mentions that he is worried about the rest of his mass. He goes on to explain that when you morph into something smaller th...
<|im_start|>user CMV:If you don't get angry over a pig being killed to make your bacon, you shouldn't be angry over a hunter killing a giraffe bred to be hunted. People always post these things on social media "That bastard, I hope he dies for killing that majestic animal" when a giraffe that has been bred on a hunting...
<|im_start|>user ELI5: What is the difference between what dietitians do and what nutritionists do?<|im_end|> <|im_start|>assistant Dieticians have to be licensed to use the labels RD or RDN, much like being an RN or an MD. Nutritionists don't. Nutritionists may have a lot of knowledge and be a big help or they may j...
<|im_start|>user CMV: I believe that labeling people as “unskilled workers” is a dehumanizing. Although I have nothing but respect for people working in highly technical professions, I don’t believe calling people “unskilled” is correct. It is my opinion that using this this term could be harmful to self-confidence and...
<|im_start|>user ELI5: How is the ketogenic diet at all healthy if you're eating lots of fats, which clog arteries?<|im_end|> <|im_start|>assistant Put in a very simple way: Fat does not clog arteries by itself, fat deposits on blood vessel walls as a protective measure, against damaged caused to the lining by other t...
<|im_start|>user CMV: Capitalism isn't inherently flawed; the weak can be oppressed by the strong in any system of government (or lack thereof). Lots of people online seem to think that communism/socialism/anarchy are better alternatives to capitalism, since they will result in greater equality for everyone compared to...
<|im_start|>user ELI5: Why did humans evolve mentally when every other species evolved physically? Why did we evolve for intelligence instead of strength, speed or some other physical trait? **Edit:** I know I phrased this question awkwardly, I'm not the best with words. And although the question has been answered I s...
<|im_start|>user ELI5: Why 5G towers and remotely read electricity meters and the EMF they emit are NOT dangerous. I don't believe they are, but I'm after a convincing argument to use with those who do, that isn't condescending and they might consider. I work for a power company and get a lot people complaining that ...
<|im_start|>user ELI5: Why is IE so hated? Is it really that bad compared to chrome/Firefox? If so, why hasn't Microsoft improved in all these years?<|im_end|> <|im_start|>assistant Browsers such as Firefox and Chrome implemented standards proposed by the W3C (a body that sets standards for the web) which make a page t...
<|im_start|>user If gravity is a property of spacetime, why are we trying to explain it as a fundamental force? I feel like I sound like a complete idiot asking this. I should mention I have no real background in physics, so I probably am an idiot. From what I understand, we describe the strong force, the weak force, ...
<|im_start|>user Is literary anti-cognitivism a seriously held position among professional philosophers? I've recently been reading about literary cognitivism and what I've found is that most (actually all) the papers I have been able to find online have been in support of the cognitivist position. I think I'm quite st...
<|im_start|>user What do blind people see when they dream? Assuming they were blind from birth.<|im_end|> <|im_start|>assistant Surveys have been done on this very subject. A lot of the results found that people with congenital blindness often report experiencing other senses while dreaming while almost none experienc...
<|im_start|>user ELI5: How does the human body metabolize stored fat? What can you do to help it metabolize at maximum efficiency (i.e. burn fat at greatest rate possible)? For example, I see a lot about the importance of drinking water but no real explanation of why. Online sources all speak in technical language I c...
<|im_start|>user AskScience AMA Series: We're Rachel Davis, MD, and Moksha Patel, MD, instructors at the CU School of Medicine. With Rachel's expertise, Moksha decided to undergo deep brain stimulation surgery for OCD. AUA! Hi, Reddit. We're Rachel Davis, MD, (u/racheldavismd) and Moksha Patel, MD, (u/mokshapatelmd). W...
<|im_start|>user ElI5: please, What’s the difference between crystal and glass?<|im_end|> <|im_start|>assistant There are two different ordinary uses of the word crystal. The first ordinary use of the word crystal is a orderly arrangement of molecules of a single molecule. Two common crystals found in almost every bo...
<|im_start|>user [Full Metal Alchemist] How is Alchemy triggered? In FMA, when the brothers try and resurrect their mother, their hands are already on the circle, and then they decide to begin the alchemical process like magic. Similarly, Alchemists who wear their transmutation circles/arrays on some sort of apparatus ...
<|im_start|>user ELI5: Why are empty glass bottles harder to break than full bottles? Was throwing a couple empty bottles around earlier today, and noticed that it took a lot more force to break than a full bottle did, why is this?<|im_end|> <|im_start|>assistant 1. Full bottles contain more weight, so at the same spee...
<|im_start|>user CMV: Safe Space subreddits do more harm than good. To refine this idea: In my opinion subreddits (particular ly political ones) which actively ban or delete user contribution which challenge the ideas espoused by it do more harm than good by creating echo chambers in which missinformation is more likel...
<|im_start|>user CMV: Tape style White Out is far superior to liquid style White Out. Hello! Today I would like to present to you the concept that using a tape style white out is better in nearly every way than using liquid white out. My credibility on this matter is that I screw up a lot when I write and have to fix a...
<|im_start|>user Is there a genetic difference between the races? I'm arguing with someone on another subreddit and we've pretty much exhausted google. So I'd appreciate some expert help. Thanks! * Is there a significant genetic difference between the races? * Is one race more intelligent than other races?<|im_end|> <...
<|im_start|>user Is there a national/ international database for viruses, bacteria, fungi, etc that affect humans? I’m imagining something like DNA held in a crime case. They can’t find a match for it so a record is kept, and vice versa if you’re convicted of a crime your DNA is now on a database for future checks. N...
<|im_start|>user ELI5: Why is rice so readily available and cheap? I've traveled around Southeastern Asia a bit and seen rice paddies first hand, as well as have read a bit about how difficult life is for rice farmers. It seems to be incredibly labor intensive and somewhat low yielding, so I don't get why 1) there seem...
<|im_start|>user Since time is not absolute, does it make sense to describe the age of far away galaxies in years?<|im_end|> <|im_start|>assistant It turns out the effect isn't that big in most real-life situations, but there is a convention we can use if we really want to be more careful when we talk about time. Time...
<|im_start|>user ELI5: How do they construct underwater supports and structures such as bridge supports and boat ramps?<|im_end|> <|im_start|>assistant There are several techniques that can be used. As /u/Earhacker mentioned you can build the structure or build components for the structure on land and then sink them in...
<|im_start|>user Is it possible to transform martian soil into fertile soil through bacteria and fungi?<|im_end|> <|im_start|>assistant You’d have to find a way to thicken the atmosphere first. If we had bacteria or fungi that could function in a near vacuum. Add to that the problem that water boils at about 10c on Mar...
<|im_start|>user How do the scientists estimate mass of galaxies based on their brightness and colour? I've recently watched YouTube video called Dark Matter's Not Enough by The Royal Institution and I heard there the explanation of dark matter. Presenter said that dark matter idea came from discrepancy between two est...
<|im_start|>user [Green Lantern] What specific power does each lantern ring give?<|im_end|> <|im_start|>assistant All of them give relatively similar powers, but some have more unique properties than others. All of them grant the ability to travel safely through space at superluminal speeds, including a personal force...
<|im_start|>user If a person with a certain communicable disease dies of it and is buried, do the said pathogens continue to live, multiply and spread in the soil? By extension, like how vaccination improves herd health, shouldn't incineration be a preferred mode of disposal of the dead rather than burial?<|im_end|> <|...
<|im_start|>user I know a little bit about relational databases like MySQL. What are noSQL databases? How do they work and how does that differ from relational databases?<|im_end|> <|im_start|>assistant Whereas a relational database is typically thought of as a collection of tables, with columns, and rows of informatio...