The new /sci/ wikihttps://4chan-science.fandom.com/wiki//sci/_Wiki(More resources in replies)
To use MathJaX, put your TeX code between [ math ] ... [ /math ] tags for inline equations or [ eqn ] ... [ /eqn ] tags for block equations.[eqn]\zeta(s) = \sum_{n=1}^{\infty}\frac{1}{n^s} = \frac{1}{\Gamma(s)}\int_0^{\infty} \frac{x^{s - 1}}{e^x - 1} \mathrm dx[/eqn]Note: You may preview the output by clicking the TeX button at the top left corner in the quick reply window.Additional supported file type on /sci/ is PDF.Reminder: /sci/ is for discussing topics pertaining to science and mathematics, not for helping you with your homework or helping you figure out your career path.If you want advice regarding college/university or your career path, go to >>>/adv/ - Advice.If you want help with your homework, go to >>>/wsr/ - Worksafe Requests.
The chinese quants are trading at close to speed of light due to secret government FPGA tech. All the western quant companies are shitting themselves and are going to pull out of the market soon. Get out while you still can.
Ling Long told me buy the dip.
I thought fast trading was banned.
>>17042915Sounds like complete nonsense to me. Even if the Chinese had faster HFT there would still be large differences in strategy, location, jurisdiction... Do you have any sources or further information?
Few people tend to truly grasp recurrence theories or models that predict some kind of naturalist account of an afterlife. I can understand the group that protects themselves, nothingness is very comforting, but I don't see how anyone who takes our predicament seriously can come to the conclusion that nothing happens. I see my coming into existence as an event with probability 1, and I don't know how to change that just because I've died. I've probably died a lot. Its a terrifying blindspot that you think would encounter the greatest of consideration.
>>17042882Any model of afterlife is a model of the life you wanted to live but didn’t.
>>17042882For any recurrence model to have any meaningful value, you'd have to solve the vertiginous question first. Even taking at face value that a perfect copy of you is certain to come into existence, there is no guarantee that you will experience the copy's experiences. And a simple thought experiment makes the prospect appear absurd:If a perfect clone of you existed then would you not perceive the distiction between that clone and yourself? Or are you under the impression you'd be experiencing both perspectives simultaneously?
>>17042882Materialists are cursed to reinvent theology from first-principles in a fundamentally worse way.You can't actually create copies of people, because souls are entirely unique regardless of material substrate.I will prove my point by way of an example:Suppose that you experience amnesia. You are now roughly in the same state of mind as everyone else who experiences amnesia.Is there a non-zero chance of your retro-causally becoming or always having been one of those other amnesiacs, because your mental states are now very similar or even identical, if but for only a moment?If your answer is "no", then you have already assumed the existence of a non-physical observer who is secondary to the body and has an intrinsic sense of identity.If your answer is "yes", then you could literally get blackout drunk and then have a non-zero probability of retro-causally becoming a different person who also got blackout drunk. This doesn't seem intuitive to me.
>>17042903>Suppose that you experience amnesia. You are now roughly in the same state of mind as everyone else who experiences amnesia.nonsenseunless two hypothetical amnesiacs have the exact same molecular structure they don't have ""roughly the same state of mind"" as each other unless you think your state of mind is only the voice in your head telling you that it is has agency and doesn't believe in hangriness
>>17042882it's okay, you're just a midwit
I am trying to make a 12v batteryThe ingredients at my disposal are aluminum wire (gauge and purity unknown), copper terminals I salvaged from an outlet (purity unknown), 710ml plastic cups (PET?), salt packets (unsure if iodized or not).I have no background in anything related. Any advice? Tips?
Buy a car battery, they are only like 50 bucks or something.
Underage b& edition, also known as:Please participate in the strawpoll so we can figure out just how underaged all of you are.https://strawpoll.com/mpnb1wzXvy5Previous Thread: >>17030094This thread exists to ask questions regarding careers associated to STEM.>Discussion on academia-based career progression>Discussion on penetrating industry from academia>Or anything in relation to STEM employment or development within STEM academia!>If you have a question, before posting, read some of the older posts and ,if you can, try to answer their questions on your post. That way the thread isn't an endless log of unanswered questions.Resources for protecting yourself from academic marxists:>https://www.thefire.org/ (US)>https://www.jccf.ca/ (Canada)Information resource:>https://sciencecareergeneral.neocities.org/Comment too long. Click here to view the full text.
>>17042269I just said fuck it and enrolled for some post-bacc whilst I study for the MCAT. If I can't even get a fucking job with a BSc and tons of lab work, might as well try to become a physician.
>>17042231Something like optical spectroscopy, instrumentation and semiconductorsThe only people doing optical spectroscopy pay 40k, the instrumentation people want someone making high throughput standardized fab equipment instead of harebrained diy setups, and the semiconductor people want someone who has done epitaxy instead of stirring gunk into a cuvette or pointing lasers at wafers.I really thought it would be employable and in the US it might be but here the jobs just do not seem to exist.
>>17042303Oh yeah the optics people want someone who has used professional optics simulation software, the photonics people want someone who makes PIC chips, the quantum people have their whole own thing.
> can't get a internship in uni because muh not qualified > can't get entry level job after uni because there is none available everyone wants 2 years of experience thesis work doesn't matter> lol just network bro best of luckif they would at least give me a feedback and tell me what I lack perhaps I could work on that but its always standard > others were better sucks to suck
I’ve only seen roasties on social media getting jobs in their respective academic fields. Am I crazy or is it virtually impossible for a straight white man to get one? And at a larger scale is there a systematic denial of my group from education?
Anyone have opinions on this gent here?Seems to be his manifolds that Einstein based his theories upon. Really glad someone turned me on to him.Bet HE believed in the Aether...unlike some (((people)))I'm not expecting any great responses but maybe I'll be surprised.
>>17042572>Not really, you would get melted by other shit long before the CMB.In free space? It would be CMB first i think. But first was not the point, the point was that its happening.>>17042572>So I can't understand how a bucket of water behaves if I rotate it without taking into account the reference frame of the CMB?You can refer to the fixed stars like mach. But the CMB has basically zero rotation compared to the fixed stars and is a local thing, how else would the bucket know about the fixed stars hmmm?
>>17042571>>17042429Ya...it's almost like they don't want their to be some form of underlying frame of reference for morality or physics. You know, the establishment I mean. Because if their was one it would topple (((their))) entire perspective and way of life.
>>17042353thank you sir
>>17042800Yes its very clear this is pushed. I think its this "oh all is relative" philosophy they are pushing with it. It kills common sense, thats the thing. "Relative simultaneity", "space bends" all this bullshit.
another aether threadI cant do this anymorewhy can't you retarded morons just study SR and appreciate it for the mathematical elegance that haswhy always insert this obsolete boring BS only to claim another point for the Aryan team or whatever you moronic /pol/tards want from the aetherjust fuck off
If I put a cube really close to my nasion and focus my eyes on it, I can see 4 sides of it since my eyes are looking at it from 2 angles, does this mean that I am now perceiving things in the 4th dimension?
>>17041959Cut off part of your son's dicks going forward for all time
Do that in front of a mirror | rorrim a fo tnorf ni taht oD
>>17041957You will have to join the other Asians in Nepal now, prophet.
>>17041957If I imagine a cube in my head I can see all 6 sides (12 if you count the inside, too).
>>17041957Yes, exactly.
Moderna is ACTUALLY about to cure cancerhttps://www.youtube.com/watch?v=HT6ukBZe10w
>>17040927>Doctor of Philosophy in NursingThat is an arts PhD, like I said.
>>17039059>cure canceranything that deals with parasites and toxins in the body will cure cancer
>>17041126i hope you get cancer so you can prove it
>>17039125fpbp
>>17039408dumbthe more times you wake up the sooner you're likely to diethat guy is book smart but can't into logic
Between zero and one. Some of you fleshbags may survive in the long term. If you're lucky. I don't want to live on a planet with unlucky people, so I may do some culling.
>i need to know, i am going to die in 60 years
>>17042812zeroreminder that just because you can draw a graph of it, doesn't mean it's possible
>ruins yours sleep for a buzz you can't even feel after 3 daysCaffeine might be lowering the IQ of the whole planet through unrestful sleepYes, coffee is bad for you, christ is not king
>>17041863only homosexuals write with a period at the end
>>17041825Coffee is good for you. It makes your heart go brrrr and your dick go boing. Probably makes you die young but who cares about having a slovenly sexless life anyhow
>>17041825No, coffee is not good for live fish or fish tanks, but the scent can be used effectively as a fishing attractant. So we are attracting fish in the ocean through human consumption and wastewater.
>>17042018This statement is incorrect.
>>17041825Just cancel it out with some weed, dude!
/sqt/ - simple questions thread (aka /qtddtot/)Previous thread: >>16893204>what is /sqt/ for?Basic questions regarding maths and science. Also homework.>where do I go for advice?>>>/sci/scg or >>>/adv/>where do I go for other questions and requests?>>>/wsr/ >>>/g/sqt >>>/diy/sqt etc.>how do I post math symbols (Latex)?rentry.org/sci-latex-v1>a plain google search didn't return anything, is there anything else I should try before asking the question here?scholar.google.com>where can I search for proofs?proofwiki.org>where can I look up if the question has already been asked here?warosu.org/scieientei.xyz/sci>how do I optimize an image losslessly?Comment too long. Click here to view the full text.
In Naive Set Theory by Halmos, he states:"The explicit definition of an ordered pair ((a, b) = { {a}, {a, b} }) is frequently relegated to pathological set theory." What does he mean by this? Or rather, what sorts of logical fallacies can arise from Kuratowski's notion of an ordered pair? I fail to see the potential issue at hand here and would like to be made aware of it. I can read whatever you send me.
>>17041553The term "pathological" has rather eyebrow-raising properties for most English speakers, but it is important to study multiple pathological definitions as they are designed to keep one's mind aware of the peripheries in the axioms we take for granted. In set theory it's best to study as many approaches to it's plethora of definitions as possible, as it can help you understand whether YOUR work is weak or strong, unrefined or refined. >HalmosHe's better saved for when you want to review an undergrad book. If you want to start in a spot that doesn't leave anything obscured, I'd pick up a one-semester undergrad book in set theory and then go from there; set theory books are all the same. Just get some random dover print, or if you feel like it a Springer print (physical book, or pirated pdf).If you feel like challenging yourself afterwards, I'd buy Axiomatic Set Theory (Dover print) by Suppes. It's an old book and very difficult as such AST books were at the time, but it's quite a useful window into things as-they-were-developing.
>>17041553>"The explicit definition of an ordered pair ((a, b) = { {a}, {a, b} }) is frequently relegated to pathological set theory." It's a type_theory tier lie. This definition is perfectly fine. 100% accuracy in language is what make math accessible, not bullshit handwaving.
Would the old ice sheets actually have had miles of sheer cliffs like this on land, or would there have been an unceremonious gradient?
>>17042482Both are possible depending on the underlying land topology and weather.
new science just dropped: before the dinosaurs started extincting, they weren't getting extinctthanks science!
>>17042423>soientistlisten to yourself and your middle school level of communication. Do you talk like this in public, too? Or are you at least self aware enough how fucking cringe worthy the jargon of your sad little online bubble is to outsiders?>>17042328Frankly I have some respect for /x/, they treat fiction of their making with greater dignity and sincerity than most of /sci/ treats empirical reality, let alone physical theory.
>>17042377>Dinosaurs didn't bark you fucking idiotExplain this then.https://youtu.be/PNdOcALSFO8
>>17042326the guardian, probably. which mind you was published 10 months ago. meanwhile his screenshot says 5 hours ago. meaning op is a boomer faggot who probably saw this horseshit as a reposted facebook meme. that is to say that op definitely didn't track down the original source so is unable to answer your simple questionhttps://www.theguardian.com/science/2025/oct/23/dinosaurs-asteroid-struck-research
>>17042679Kirk is not only irrelevant to the conversation but his wife is an excellent example of what a neck pierced little cuck like him is good for: die so his jewish wife can ride the cock carousel before his body is even cold.I always knew you were a rambling waste of space with incredibly suspect initials, but I didn't know you were also a politics obsessed American.>Youre Talmudic,The foreskin compromised little gremlin opined, one of the many things it screeched that day on the science board that are not science. Years have passed and I still have not seen evidence of you being able to pass a Calc II exam. You can only ramble and post screenshots of esoteric garbage, shoo.
>>17042377The little ones did.
Well?
>>17042840I’m pretty sure I understand the problem better than you lol.
>>17042837I just so happen to have a very good tip from a very reliable friend of ours who knows all about these types of things that these two particular frogs do not quite get along with each other very well and so do not exactly randomly hop from pad to pad with equivalent probabilities.If you get my drift.>>17042843Yes.
>>17042843>>17042729
>>17042876it's not random unless the probability coefficient is also randomized every step
>>17042729Very nice thread OP thank you for making this image.>>17042746Concur.
Why has Heaviside been so forgotten when he was so important? I’m starting to think maybe there is a group of people trying to suppress the ideas of men like him. Perhaps, a (((conspiracy)))?
Why aren't the Maxwell Equations called the Maxwell-Heaviside equations.
>>17042884Because all Heaviside did was improve the notation.
>>17041136>The 4 Maxwell's equationsLol, I think I'm catching your sense of humor.>20 original maxwell equations.Heaviside took the original mathematics and simplified them for engineers and students in college I think. He's the one who dubbed the Potentials as mathematical contrivance..."murdered from the theory" I think is how he put it.Something tells me he was playing some Ball potentially when he did that. Maybe they got to him.
>>17042886That's huge
>>17042892It's important and what's in common usage today, but he didn't discover the theory.
That's right
>>17039734Ever heard of a breeder reactor?
>>17039728Nuclear and solar are the same thing. Geothermal and ocean and wind are all just aleatory currents. Oil is gross and sticky.
>>17039728Ff > wind.
>>17039742>jealous that hydro areas get free limitless energyrelocate all citizens near mountains, climate change solved
>>17039729merge S and A tier and it's basically it