[a / b / c / d / e / f / g / gif / h / hr / k / m / o / p / s / t / u / v / vg / vm / vmg / vr / vrpg / vst / w / wg] [i / ic] [r9k / s4s / vip] [cm / hm / lgbt / y] [3 / aco / adv / an / bant / biz / cgl / ck / co / diy / fa / fit / gd / hc / his / int / jp / lit / mlp / mu / n / news / out / po / pol / pw / qst / sci / soc / sp / tg / toy / trv / tv / vp / vt / wsg / wsr / x / xs] [Settings] [Search] [Mobile] [Home]
Board
Settings Mobile Home
/sci/ - Science & Math

Name
Options
Subject
Comment
Verification
4chan Pass users can bypass this verification. [Learn More] [Login]
File
  • Please read the Rules and FAQ before posting.
  • Additional supported file types are: PDF
  • Use with [math] tags for inline and [eqn] tags for block equations.
  • Right-click equations to view the source.

08/21/20New boards added: /vrpg/, /vmg/, /vst/ and /vm/
05/04/17New trial board added: /bant/ - International/Random
10/04/16New board for 4chan Pass users: /vip/ - Very Important Posts
[Hide] [Show All]


Janitor applications are now open. Apply here!


[Advertise on 4chan]

[Catalog] [Archive]

File: the phenotype.jpg (396 KB, 798x1200)
396 KB JPG
The new /sci/ wiki
https://4chan-science.fandom.com/wiki//sci/_Wiki

(More resources in replies)
4 replies omitted. Click here to view.
>>
File: undergradmath-1.png (296 KB, 1700x2200)
296 KB PNG
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.

File: 2026-05-22-002642.png (209 KB, 671x301)
209 KB PNG
>The twelfth flight test of Starship is preparing to launch Friday, May 22. The 90-minute launch window will open at 5:30 p.m. CT.

Official stream
https://x.com/SpaceX/status/2057843818859209147
https://x.com/i/broadcasts/1pKkOykQRgNKj

NSF
https://www.youtube.com/watch?v=UfQHy4mVcBo

Everyday astronaut
https://www.youtube.com/watch?v=odWYDx3u8A4

Spaceflight now
https://www.youtube.com/watch?v=U4alF1JasLo

The launch pad
https://www.youtube.com/watch?v=YjiHp0J5iYc

yesterdays thread >>16981065
1134 replies and 194 images omitted. Click here to view.
>>
>>16985295
there are people who think it will make fusion viable, but that's dumb. instead it has unique physical properties that can be used for various technologies. kinda similar to how asteroids look good because of the trillions of dollars of platinum group metals waiting to be mined

File: HJAsMtjXkAA_5nY.jpg (378 KB, 2346x4096)
378 KB JPG
Flight 12 Edition
Previous >>16980552
219 replies and 52 images omitted. Click here to view.
>>
>>16985342
which is kind of weird because canadians can work on ITAR material as long as they are doing it in canada
>>
File: 1750423344470720.jpg (55 KB, 750x709)
55 KB JPG
i've started getting patches and i have nowhere to put them. they're all sitting in a pile on the floor right now
>>
>>16985364
Get a denim jacket, one that’s just a little bit oversized (at least enough to comfortably wear a long sleeve and maybe a vest or lighter jacket underneath)
Will serve you well during cool weather, also cold weather with layers. And will provide a canvas for patches
>>
did they give up on the big door? Or is this just for starlink now
Using this for anything other than putting large payloads into orbit for construction seems like a waste of time
>>
>>16985367
this is the HLS demonstrator. The astronauts just have to slide through.

File: pider.gif (1.73 MB, 506x284)
1.73 MB GIF
People love dogs despite the fact that dogs' ancestors hunted our ancestors.
Yet people fear spiders despite the fact that very few spiders pose any danger even if they bite, which they're not inclined to.

So why is does this fear seem so innate?
6 replies and 1 image omitted. Click here to view.
>>
>>16984626
Read Jung.
>>
>>16984713
Taste is specifically a biological phenomenon to identify nutrition. Girl spiders who eat boy spiders after sex do so because they have small brains that don't care so much about taste, which is why women have more arachnophobia because they get scared of their spider junk DNA forcing them to eat men after sex and men taste bad, as established.
>>
>>16984790
Would this suggest a correlation between women not having arachnophobia and being more dominant in bed
>>
>>16984626
More skittering movements and limbs that make one feel they have to process more despite spiders basically never using their limbs to attack unlike many other predators with claws. Not knowing what spider it is exactly so the mind is often unsure whether it has a disabling/lethal bite. Unpredictable jumping ability and paranoia about it staying on you. Lastly, knowing you'll make a mess if you squish it on a surface/yourself and wanting to avoid that. Most people aren't practicing how to rationally deal with the scenario, so their minds often go into overdrive.
>>
>>16984626
It’s mostly a taught fear, not an instinctual one. If you visited a tribe in the remote Congo you’re probably not going to find any arachnophobes. There is an evolutionary precedent for being wary of fast moving creepy crawlies but that isn’t the same thing as fear and it isn’t specific to spiders. The idea that we would evolve a fear of spiders to avoid being bitten by dangerous ones falls apart when you actually look at where dangerous spiders live. There are no truly dangerous spiders outside of Australia and South America, neither of which had any pre-human Hominids

File: europa.jpg (479 KB, 913x913)
479 KB JPG
What if the Europa Lander finds complex life under the ice of Europa in the 2040s or whenever it arrives? Imagine discovering that life coincidentally also exists so close to our planet, and then remembering that we've been broadcasting radio signals over hundreds of light years for the last two hundred years.
39 replies and 7 images omitted. Click here to view.
>>
>>16964463
DID THEY NOT READ THE BOOKS?!?! WHY ARE THEY ATTEMPTING LANDINGS THERE????
QUICK SOMEONE FIND FRANK POOLE HE'S FLOATING OUT SOMEWHERE NEAR PLUTO.....AHHHHHH FIND DAVE AND HAL AND SAVE US FROM THE MONOLOTH FRANK
>t. has read 2001, 2010, 2061, and 3001
>>
>>16964073
>>16978210
Why does it just look like a dirty frying pan?
>>
>>16978996
First image is Europa and second is Triton but I suppose they both look like dirty frying pans
>>
Someone nuke this thread
>>
>>16964089
>doesn't really change anything on a day to day level
yeah so did inventing hydrogen bombs but its still a big deal

My brain keeps selectively removing very important info about my life!
How to stop this? (taking meds)
(I found out about it from documents!!!)
>>
>>16984464
If you kept replaying it, it would create an interconnectable link and cause an effect on the universe. Depth of information causes a link.
>>
>>16984464
>My brain keeps selectively removing very important info about my life!
That's called "forgetting." Try taking notes or something.
>>
>>16985114
>forgetting
How do you forget a very important thing, but you remember what happened after and before?!
>>
if you forget something, it probably wasn't important

File: wew.png (2.07 MB, 1055x1491)
2.07 MB PNG
"I got ChatGPT to make this image in 5 seconds instead of trying to google something moderately interesting and will claim this as meta commentary instead of laziness" edition.

Previous Thread: >>16945727

This 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/
>*The Chad author is seeking additional input to diversify the content into containing all STEM fields. Said author regularly views these /scg/ threads.

No anons have answered your question? Perhaps try posting it here:
>https://academia.stackexchange.com/

Comment too long. Click here to view the full text.
154 replies and 13 images omitted. Click here to view.
>>
>>16985234
The only reason I give a shit is that these flunkies not doing their job stops me from building my gizmos.
>>
Is it normal, if not common, to doubt your initial chosen field?
>>
Why can't unemployed CS grads just start their own companies? Overhead costs are so minimal because all they need is a laptop
>>
>>16979975
>>16980221
Anyone?
>>
>>16985348
Sounds easy. Let us know how it goes. There simply couldn't be more to running a business with no experience than writing some pretty code

Why can't they just cure this shit already? Biologics work well but then they stop working. Is it really that hard to just make a biologic that works forever? Why do I have to live the rest of my life in constant anxiety and fear that a flare can come back at any time and not know when or if the next drug I try is going to work?

File: flower1.png (929 KB, 1201x894)
929 KB PNG
Null theory is ultimately about making the most minimal claim ( nothing conceptually exists ) and subjecting it to the most simplest rule for growth ( A->AB, B->A : the fibonacci substitution ). That's it. I'm literally claiming nothing then picking the first rule that shows up and does anything non-trivial. What would physics look like if they had to be constrained to this rule?
Well, it turns out it looks a lot like our physics.

One of the core principles is that the behavior of fibonacci words ( and phi in general ) project upwards i.e. ABAABABA => no B's Touch => B-Repulsion => basis for causality and motion. the give of A/AA is a spatial basis.
its about reducing complex phenomena to their simple origin or its vice versa, to navigate to complex phenomena through simple origin.

The Theory of Nothing-v3.pdf has the complete derivation chain from O to CC/H, newtonian, relativity, etc. It goes over the connection and generation of the platonics and the gauge groups, introduction of 3+1d space/time, the natural and digital numbers, 3 independent routes of derivation that converge on the same thing, etc. All as forced actions. Its a discrete combinatorial with no parameters... There's no continuous number I could fudge even if I wanted to.

This zenodo has the 3d hopfion viewer + orbital mechanics from first principles (along with the master kernel which produces all observables)

https://zenodo.org/records/20349584?token=eyJhbGciOiJIUzUxMiJ9.eyJpZCI6IjY2NGZkMTg2LWNkNDctNGFjMi1iMzE0LWEyM2JiZDgzMTJkMiIsImRhdGEiOnt9LCJyYW5kb20iOiI4MGE1ZTczMzgyM2RiMTc0ODJmNzFlZmE2ODgwNGRmNyJ9.PNzWZrBLwiI7dnGhw2XAGmkXar9v3Mdd5SOLXmuypjAa1DITgXNte9rTc-Pn3UZXXTZHJC8OBFoML-xJ_DWKvg
149 replies and 26 images omitted. Click here to view.
>>
File: fren-youre-alright.jpg (65 KB, 1024x577)
65 KB JPG
>>16985345
thanks! yeah I need to rewrite the bergmans and rewrite that section , I'll make a note of it. I did end up finding the actual rule I think yesterday, which is what the master expression uses. I didn't realize there was a discrepancy in the greedy search though
>>
>>16985341
perhaps you're right, I'm considering toning down the language. I'm going to look over everything and take these messages under consideration
>>
File: fren-hold-the-line.jpg (59 KB, 1024x693)
59 KB JPG
alright guys thanks for the suggestion, I am cooked for tonight, gonna be doing revisions later
>>
>>16985352
You don't just need to rewrite that section anon you need to re-prove every theorem that used it previously and re-evaluate every time you use the concept of Bergman's corrections, since they might not be well-defined
>>
>>16985346
You're still being confusing. Is the modulus parity the expression "Det M = -1"? Is it the determinant itself? Is it your name for the two eigenvalues? You're doing math here, you need to rigorously define your technical terms (unless you're not using it as a technical term at all but just a conceptual catch-all)

When are we getting a cure for ADHD? When I was a teenager I thought ADHD was applicable only to people who are a nuisance, loud and wanted to be the centre of attention and who couldn't focus. Now in my late 20s I'm realising that there might be a large chance I might have ADHD as even though I was never a loud person around other people, whenever I tried to read or do something which required attention or patience I would constantly fidget or have restless leg syndrome or have racing thoughts at night and not be able to sleep, I would toss and turn and also be forgetful during the day which is terrible. When will we get a cure for this terrible disease?
8 replies and 1 image omitted. Click here to view.
>>
>>16980055
>When are we getting a cure for ADHD?
it's called stop being a self absorbed insensitive asshole.
>>
File: calling bs.gif (175 KB, 214x200)
175 KB GIF
>>16980266
>I made up this fan fiction to cover for the fact that I am a lazy asshole.
>>
When we get less meddling from those "higher up", less "quantum entanglement", less radio towers and less people doing work that messes with our brainwaves and such

Also ensuring that we are born properly so that we dont end up getting confused for others that end up cucking us out of our proper paths and order of processes

And so on
>>
>>16985183
What is with these schizoposts on every thread on /sci/, I don't get it. Is half this board schizophrenics and the other half pseuds?
>>
>>16984232
>>16985174

Attention deficit is a dopamine deficiency.
The brain doesn’t “reward” you for doing stuff
like a normal person.

The hyperactive and non-hyperactive variations
are the same, hyperactivity is just how some
learn to cope with it.

File: IMG_1633.png (524 KB, 1280x720)
524 KB PNG
Unless you’re specifically concerned about
critical issues like job security or cognitive
decline, your reaction to advancements in artificial intelligence is ultimately a humility test.

If you’re excited to see how sophisticated and capable AI can possible get, you passed.

If you’re malding over your skill/knowledge
potentially becoming more accessible or
less relevant, you failed.

Generally speaking, truly intelligent people can
see the futility of pride.
6 replies omitted. Click here to view.
>>
>>16984536
black and white thinking is a sign of low intelligence
>>
>>16984536
Thank you for affirming I am so humble. Being so humble, I needed to hear that, because I am so humble. Most people can't recognize how humble I am, in fact.
>>
>>16985327
Systematizing is "input = output". Gray is just poorly defined or categorized. Black and white is literally the best possible outcome.
>>
>>16985270
>>16985327
People on this board are primarily concerned with bragging rights. If you state otherwise, you’re being dishonest.
>>16985340
The statement stands on its own merit.
>>
>>16985343
unintelligible drivel

what's the best online platform to learn maths and physics stuff online as a middle age crisis autodidact chud ? do online courses make any sense or is it better just to work through textbooks instead?
4 replies and 1 image omitted. Click here to view.
>>
File: 1739783406870092.jpg (163 KB, 1200x1200)
163 KB JPG
>>16984753
pdfs of textbooks
>>
File: 1774174012012993.webm (1.88 MB, 400x532)
1.88 MB
1.88 MB WEBM
>>16984753
>actual sci content on /sci/
Do you just want to learn or want a certificate at the end? Most of the peak intsitutions offer online degrees if you want le document.
If it was going full autist into a subject without caring about credentialism I'd do some of the intro courses then read papers with llm assistance and shitpost with other autists on the niche forums.
Plenty of weirdos out there trying to solve millennium prizes and such to talk with and learn the cutting edge.
>>
>>16985330
>with llm assistance
opinion discarded
>>
>>16984985
What's wrong with it?
>>
>>16985339
it doesn't really prepare you well for big boy qm
but i think it's ok, the development of fundamentals isn't bad if it's your first really serious stab at tackling pdes

What is the cause of the CMB Cold Spot?
3 replies and 1 image omitted. Click here to view.
>>
Given the the temperature differences involved (~ microKelvin) it's hardly a cold spot. Our pattern matching brains are likely reading too much into it since the surrounding areas are "hot".
>>
>>16984986
The whole CMB is fabricated. It's all extreme noise and then people come up with filters to try to make it look smooth.
>>
>>16985254
no I mean the ecliptic
>>
>>16984986
The AI told me the most likely explanation.
>>
maybe they agreed to have cmb:less place

>Calcium is a metal
What?
8 replies and 7 images omitted. Click here to view.
>>
>>16982157
anon... under the right condition hydrogen can exist as a metal.
>>
>>16985178
interesting
>>
>>16982157
Anon, of all the known, naturally-occurring elements in the universe, only six are known to exist in a solid, non-metallic/metalloid state at room temperature:
Carbon, Phosphorus, Sulfur, Selenium, Bromine, and Iodine. A seventh, Astatine, could be non-metallic, but it can't be produced in sufficient quantities to know its bulk properties.

Damned near fucking everything in the universe is a metal. It's just metal all the way down.
>>
File: metal.jpg (78 KB, 500x500)
78 KB JPG
everything that isn't hydrogen or helium is metal
>>
To an astronomer everything but hydrogen and helium is a metal

File: IMG_7025.jpg (38 KB, 841x764)
38 KB JPG
Natural selection in humans is a joke
Every tiger looks the fucking same
Every chimpanzee looks the fucking same
Every penguin looks the fucking same
Every human in an apartment complex will look drastically different from face composition, complexion, eye colour, height, sex organs, muscular insertions, every god damn thing
Not to mention how common needing glasses is
4 replies and 1 image omitted. Click here to view.
>>
Not 100% true
People who work with animals for a living or out of fascination will start to recognize individual ones based on subtle differences. There's the cross-race effect where all Chinese or whatever will look the same to you unless they have strikingly unique features, unless you start living among them. Even within a race many facial features are subtle and a person with prosopagnosia for whatever reason (autism, schizophrenia, brain damage) will fail to recognize people based on their faces.
>>
>>16975595
What do you know of what is natural or not? Me fucking your ass could be natural to nature no matter if im gay or not
>>
File: 1769543868481632.jpg (130 KB, 1080x1349)
130 KB JPG
the ones that look even slightly different have a natural instinct to fuck off
>>
>>16976426
prosopagnosia isn't a diagnostic criterion of autism and schizophrenia and its prevalence in both is massively overexaggerated.
>>
>>16975584
you don't know how natural selection works. the reproducer is the winner, that's it. Doesn't matter if the reproducer is ugly and lame as fuck, the one who reproduce wins


[Advertise on 4chan]

Delete Post: [File Only] Style:
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
[Disable Mobile View / Use Desktop Site]

[Enable Mobile View / Use Mobile Site]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.