I am writing a research paper on the logistics of increasing renewable energy. Part of the paper is conducting an investigation, so I am doing a survey concerning people's opinions on the topic. It focuses on renewable and fossil fuel energy, nothing on nuclear, so sorry if you're passionate about that. Please help out by responding. Here's the link: https://docs.google.com/forms/d/e/1FAIpQLSeTCgXK20O9XzS2ltzcQjrBhHJiU7w442Cg3a4XP0lvVhtNXQ/viewform?usp=sf_link(Sorry for posting this on a different thread before, I thought I was creating a new one)
Stop pirating books and papers.
>>9355301>papersMaybe if scientists didn't need to pay publishers to put their papers behind paywalls, people wouldn't pirate them as much. Paywalls should be illegal for science papers.
>>9356197In the USA, colleges are a way to farm money via tuitions (grants, scholarships, loans, and out of pocket). The basic scheme is similar to the seed & pesticide industry. The companies/colleges get the government and other companies to hand out money for hiked up services and goods. For books, they are at sky high prices. You purchase the books with your money then try to sell them back to the used book store and a massive discount. However, on many colleges you can't sell the books because the next year the books are obsolete and a new set are required. There's no one to buy them. Add to this, erroneous courses that are meaningless but suck up more money from the student. On top of that, you have prerequisite classes that have nothing to do with the student's major, that can't not be skipped.
>>9355736Hey it's mastering physics!Your title is confusing, it says senior level engineering course, but it looks like freshman level mechanics.
>>9356757It's great to live in the Land of the Free™, ain't it?
no
What's the best undergrad degree for a neuroscience PhD? Aside from ayy lmao psychology.
>>9356168Analog > digital for neuroscience, pick EE
Bioinformatics if your school has anything like thatNeuroscientists these days do a lot of programming, so make sure you are good at that.
>>9356181>we know nothing on how the brain works and will continue to know nothingBut we know mechanistically how neurons fire and send signals, and for sensory neurons we have it actually pretty well mapped out. The gap in knowledge comes with trying to figure out how the logic circuits in the brain work, which will hopefully be elucidated, at least in part, by programs/projects like the connectome.Much like how we had a huge gap in knowledge for genetics before we sequenced the whole genome, and in the process of constructing it made up a new field of "Genomics", it could very well be that these kinds of efforts will spawn a field tangent to neuroscience called "Connectomics". Gives me a fucking chubber just thinking about it, desu.
MD/PhD student here... PhD in neuroscience... did undergrad in neuroscience... highly recommend you just do CS, EE, or pure math for undergrad. Do not do undergrad in a biology subfield. It is crazy competitive and you probably won't make it. Honestly, undergrad in bio probably hurts you when you get to grad level. If I could go back I would've done electrical engineering.
>>9356731I second this. If you look at top neuroscientists, particularly comp neuro, they all have math/physics/engineering backgrounds.
Hey guys, cs fuck head here. I feel like the only reason I went in to computer science was because it was the "smart" life decision to make. Like I don't give a shit about having a hugely successful career, but it just seems like everyone else thought it was the best idea, so I did it. Sure I can get some enjoyment out of it if the problems are stimulating enough, but I feel like with enough effort I could trick myself into enjoying anything.Any of you guys cucks like me? Like you can't make your own life decisions, you just follow the best advice? Wouldn't any goal I have stem somewhere from society's values though? I feel like few people can say that pursuing math or science was some natural choice they made on their own, but that most were influenced by it being the "smart" choice.
>>9356213this
>>9356213That's a good point. I guess my problem comes from looking back at the time I spent solving cs related problems. I enjoyed parts of it, but part of my brain still knows it's work, and that even if I weren't enjoying it I would force myself to do it, which makes me question why. There have been certain things I've worked on where I can't resist working on it, where as cs is more like I know I'll enjoy it if I force myself to start. Maybe I just need to tackle more interesting problems that I actually care about.
>>9355717you should have just went to nursing school if you want smart career choice.
>>9356482>have just went>have went
>>9356482I disagree. A google search tells me the average salary for nurses is $65,470, and for software developers is $93,000. As you could infer from where we're talking right now, my social skills aren't the best. It would take a lot of work for me to develop bedside manner. Also there are so many jobs in cs it's a joke, and as other people confirmed you can be an autist and still get a job.
AlphaZero AI beats champion chess program after teaching itself in four hourshttps://www.theguardian.com/technology/2017/dec/07/alphazero-google-deepmind-ai-beats-champion-program-teaching-itself-to-play-four-hours>no training material>no supervision>chess (and shogi) mastered in just 4 hours>defeats best chess program (Stockfish, no opening books or endgame tables) >defeats best shogi program (Elmo) after only 2 hours of trainingHAHAHHAHAAHHAHHAHAHA, Chess programs are retarded compared to neural nets. Human programmers ABSOLUTELY BTFO.
>>9352561Why does the number of games played matter? That's dumb as fuck, especially since a computer can play a match far quicker than any human ever could (and a computer can even learn by itself, which is extremely hard for a human)
>>9352651Letting it play against itself is how it usually learns
>>9356700Well, it worked against the Dota 2 AI
>>9349589Chess is more about imagination than calculation. By imagining position you can put yourself in a better spot to win the game. Stockfish is programmed to value materials so it does all it's calculations based on a value assigned to pieces. If it thinks that many moves ahead it will be a queen up, it will pick that line.Alpha zero would be willing to sacrifice a queen to actually checkmate. It plays like the old grand masters did except on steroids.Positional chess over material is the real difference between deep mind and stockfish.
>>9355175When it is safe to
>>9356601I don't think so
>>9356613>>9356616
>>9356623you think every derivative is integrable ?
>>9356613This isn't the engineering general anon
>>9356412> If you're stating it's equal to y' at that point, then it is.It is true for the solution y. But to prove its existence we consider convergent sequence of continuous functions [math]\varphi_n[/math], and we need [math]f(t, \varphi_n(t))[/math] to be integrable as a funnction of t for all functions [math]\varphi_n[/math].
Why do sci calls IQ a pseudoscience?is because it hurts their feelings?
>>9356080You know that shit was a shill tactic made by dr.mew right?
>>9356045It does you horsefaced retard.
>>9356740fucking what?!
>>9355697Maybe they are 2 or 3 SDs below the mean?
Yes OP. It seems like it hurts their feelings. The only pseudoscience here is mathematics and we all know that. It shouldn't even be called pseudoscience, it should be called pseudophilosophy.
What are the benefits of radians?Would you be able to get the same benefits of radians if they were replaced with "turns" (e.g. a 1/2 turn would be pi radians)?"Turns" seem more intuitive desu.
>>9356402No it doesn't.
>>9356405literally people who cannot understand the number 2
>>9356405>>9356419>>9356427>>9356573this thread already exists and tau apologists are still getting BTFO left and right in there>>9356354If not for radians, we wouldn't have [math]e^{i\pi} + 1 = 0[/math].But seriously, radians are just better. More intuitive, for one: just look on the unit circle, go counter-clockwise on the edge for [math]x[/math] units, and the angle you will have traveled will be [math]x[/math] radians!
>>93564191 tau literally equals 1 turn, as OP specified.
>>9356374d/dx sin(x) = cos(x) only works in radiusexp(i x) = cos(x) + i sin(x) only works in radiansThe power series for sin and cos only work in radiansBasically everything only works in radiansDegrees are retarded.
Why aren't 11 and 12 considered "teens"?
>>93567Why isn’t 11 called onety one?
>>9356723sides.my(in_orbit)
>>9356717Semantics, that's why.
>>9356717Because if it's on the clock then it's ready for the cock
>>9356717They are in lot of languages e.g. slavic derived
Is there a way to prove correctness or diagnose failure in neural networks?Or is a giant meme.
Nope, all you have are empirical success rates and loose generalization bounds
>>9355293What you're looking for is ``explainability'', in other words you want to interpret and identify actionable insights for predictive models.To say the least, that's bleeding edge ML, and no one is really claiming to be able to do that even for general types of models (CNN, RNN etc.)
>open paper>indian co-author>close paper>mfw
basterd son of bitch
My dad has an Indian friend who's literally a genius. When the time would come to write a paper, he'd just sit quietly on his couch for half an hour with his hand over his chest, then make his way to the typewriter to churn the bitch out. He also used to pray to his goddess in the bathroom and would sleep on the floor of his flat since he grew up broke af
>>9356591>open paper>mfw>close paper
What is considered "rigorous" in mathematics? There seems to be no good definition, and instead be more of a sliding scale. Proofs can be more or less rigorous, and there's an arbitrary but never defined cut-off point.I went down the rabbit hole and studied mathematical logic for a while, and when I came back to math I was surprised not so much at a lack of rigour, but a lack of consistency in what was to be called rigour. One common definition I see is that the conclusions must follow only from the assumptions. That's well and all, except that certain assumptions may be left implicit, or just left out entirely, and that's fine, but there's no agreement on what is trivial enough to be left out.Can anyone offer any insight?
>>9356394Proofs of correctness for the theorem prover, of course
>>9356531https://en.wikipedia.org/wiki/Principia_MathematicaPM was an attempt to describe a set of axioms and inference rules in symbolic logic from which all mathematical truths could in principle be proven. As such, this ambitious project is of great importance in the history of mathematics and philosophy,[1] being one of the foremost products of the belief that such an undertaking may be achievable. However, in 1931, Gödel's incompleteness theorem proved definitively that PM, and in fact any other attempt, could never achieve this lofty goal; that is, for any set of axioms and inference rules proposed to encapsulate mathematics, either the system must be inconsistent, or there must in fact be some truths of mathematics which could not be deduced from them.
>>9356650I'm not sure what that has to do with the original statement. That quote from wiki is about limitations of axioms, not about "guaranteeing a proof is correct".
>>9356659Second incompleteness theorem: F cannot prove its own consistency.
>>9356125Rigorous is whatever level of explanation that convinces you that complete formalization is possible (say with a computer or by hand)
How can you use time in an equation of time doesn't exist?
>>9355794This. Time is a result of increasing entropy
>>9356501>Could you rephrase?If you start at spacetime location “T1” and you move zero distance through 3d space but you are now at “T7” how does that make time any less real? You are in a different place in ____ than when you started. Fill in the blank with whatever you want, its going to be analogous to time.>That's not always true. Very often cars will be at the same location in more than one point in time e.g. while stopped in trafficOk a moving car. Happy? Either way you could use a stopped cars change in distance as a metaphor for a particle traveling at light speed’s change in time.>And to be fair the "time" that is nothing but an axis in 4D space isn't very similar at all to the "time" where there's a passage from past to future.If that change in 4D space is unavoidable and impossible to traverse without extraordinary means then yeah they are pretty much the same. Only difference being one implies time travel is possible while the other doesnt expressly forbid it.No matter what way you choose to look at time(a 4d vector or rate of passage of entropy) it exists enough to be used as a variable in an equation. Which makes the OP, his premise for this thread, and all the people who think like him completely retarded.
>>9356537>If you start at spacetime location “T1” and you move zero distance through 3d space but you are now at “T7” how does that make time any less real? You are in a different place in ____ than when you started. Fill in the blank with whatever you want, its going to be analogous to time.Except the time people believe in involves "passage" and space-time has no such "passage." Space-time just is.>If that change in 4D spaceThat's exactly it though, there is no change. It's all one giant shape with every moment included in it. If you're imagining something moving in this shape you're defeating the purpose of conceptualizing 4 dimensional space-time because then you'll need some new second order time to explain how that movement additional to the movement explained by the 4 dimensional shape is happening.>it exists enough to be used as a variable in an equationSomething exists, but it isn't "time" as most people think of it. The fact it has the same label of "time" isn't really an argument for anything. You can call anything you want "time," the question is whether the "time" people believe in is real.Anyway, you can check out J. M. E. McTaggart's The Unreality of Time if you want a thorough write-up of these sorts of ideas (he doesn't come to the same conclusion I did here though, he basically just shows why "time" in each of the different senses it's interpreted as ends up not making any sense when you scrutinize it.
>>9356583>Something exists, but it isn't "time"You are splitting hairs. OP asked how can time be a variable if it doesnt exist. You just said something exists that we label as time. You just agreed with my original point i was making that started all this shenanigans. Im talking about the time used in time dialation formulas. It exists enough to be used as a variable and have real world applications for the formula that uses said variable. I dont give a fuck what actual mechanism is behind it until we know for sure, because at this point its all speculation.
>>9356458Ok then. What separates a point in space at 12:00pm(arbitrary time measurement idgaf) and that exact same point at 1:00pm? They cannot interact with eachother in any way so they arent exactly the same, there is a difference. Explain that difference as something other than time using evidence based observations instead of saying “u cant know nuffin” and you will have convinced me. Until then, occams razor tells me time exists.
What does /sci/ think about IT engineering?Is it worth the time to study? Does the salary look good?
>>9355281Teen Dream is the best album Beach House has made. Depression Cherry was dissapointing.
>>9355542>Teenage dream is the best song Katy Perry has sungThat's all I am hearing bro.
>>9354527>IT >engineering
>>9354527>>Doing anything in life for the purpose of getting a jobIf your actions aren't serving your own personal goals long-term, you've been converted to a wagemonkey.
>>9355542"no"
Redditfags have already solved it, but I'm not impressed by their {15 - n | n ∈ a, 1<n<15}. Can we do better? Of course we can, right?
>>9352700Less than 15
>>9353284it's just a meme, " why the homophobia?"
>>93527000<x<15Is it really that hard
>>9352700{n | 0 <= n <= 13}Some is plural, so not one
>>9356553What if she lost negative marbles?
