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Board: /sci/
"/sci/ - Science & Math" is 4chan's board for the discussion of science and math.
https://4chan-science.fandom.com/wiki//sci/_Wiki
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also is she right
>go learn a trade
I'm terrible at that shit.
> Mercury is hell
> Venus is exponential hell
> The Moon? Freaking abrasive dust inferno.
> Mars' gravity is too low, it has almost no atmosphere and the radioactivity is too high.
> Gas giant's moons are so radioactive you would get fried in hours.
We literally have to look forward to interstellar travel and that may be technologically impossible to do. All we got here is half frozen, half boiling radioactive rock deserts.
Is Earth or nothing.
What if we took that same concept and instructed the thing to put romantically-compatible people in contact with each other?
If the robot could find me a gf with 90% certainty, I would willingly give it access to all my personal information to sell to advertisers.
Joy of analysis edition
Previously >>16683009
https://blog.samaltman.com/the-gentle-singularity
Previous thread: >>16644201
>what is /sqt/ for?
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/sci
eientei.xyz/sci
>how do I optimize an image losslessly?
trimage.org
pnggauntlet.com
>how do I find the source of an image?
images.google.com
tineye.com
saucenao.com
iqdb.org
>where can I get:
>books?
libgen.rs
annas-archive.org
stitz-zeager.com
openstax.org
activecalculus.org
>articles?
sci-hub.st
>book recs?
4chan-science.fandom.com/wiki//sci/_Wiki
math.ucr.edu/home/baez/physics/Administrivia/booklist.html
>online courses and lectures?
khanacademy.org
>charts?
imgur.com/a/pHfMGwE
imgur.com/a/ZZDVNk1
>tables, properties and material selection?
www.engineeringtoolbox.com
www.matweb.com
www.chemspider.com
Tips for asking questions here:
>avoid replying to yourself
>ask anonymously
>recheck the Latex before posting
>ignore shitpost replies
>avoid getting into arguments
>do not tell us where is it you came from
>do not mention how [other place] didn't answer your question so you're reposting it here
>if you need to ask for clarification fifteen times in a row, try to make the sequence easy to read through
>I'm not reading your handwriting
>I'm not flipping that sideways picture
>I'm not google translating your spanish
>don't ask to ask
>don't ask for a hint if you want a solution
>xyproblem.info
It seems that in the US it's one of the hardest and most prestigious degrees to do. Same e.g. in Switzerland. But in many other countries, EE is where CS dropouts go. This makes me confused about it because I think EE can actually mean different things in different places. What the fuck actually is it?
>Do NOT give advice
>Do NOT feed the nursoids
>Do NOT engage with premeds
And most importantly
>Do NOT respond to psych patients
when did bees diverge from ants? nobody knows but 100 million years is as good guess as any
both are colonial insect
some ants have a stinger but its rare
bee is obviously better evolved as a flyer, ants are not great flyers even when winged
>No?
Then get the fuck off my board
Nowhere else in the universe does this happen.
>only jobs available offer LESS than a retail worker or cleaner
Fuck my shit life
Changed the processor, same shit
Changed the motherboard and processor, same shit
Tried 3 different PSU and 5 different monitors
Flashed the bios
It's now an entirely new PC except for the RAM and it still won't boot lmao
Any ideas?
1. Treating one minus r2 as a rebuttal: reframing a correlation’s unexplained variance does not reduce the predictive power that the original r actually conveys.
2. Equating “small r2” with “practical irrelevance”: in behavioural data even an r2 of .04–.10 frequently outperforms other single predictors and yields large aggregate effects across populations.
3. Ignoring range restriction: splitting the sample at IQ = 120 mechanically deflates both predictor and outcome variance, guaranteeing a lower correlation regardless of any true relationship.
4. Misapplying nonlinearity claims: he asserts that factor analysis fails in the presence of nonlinearities without demonstrating such nonlinear patterns in the psychometric data that underpin g.
5. Confusing circularity with validity: the fact that educational attainment and job tests share variance with IQ does not make the correlations “circular,” it simply reflects overlapping constructs that remain empirically measurable.
6. Assuming residual variance masks unknown, possibly dominant factors: in domains where tail risk is not central—income, job performance, educational milestones—the portion of variance left unexplained does not imply latent catastrophic effects.
7. Overlooking comparative benchmarks: he fails to note that IQ’s effect sizes exceed those for parental income, years of schooling quality, interviewer ratings, and most personality traits when predicting the same outcomes.
8. Selective appeal to meta-analysis: he highlights the one statistic (r ≈ .07 above IQ 120) that suits his narrative while ignoring the broader literature showing monotonic, albeit flattening, gains well into the upper percentiles.
I'm a teetotaler/non-smoker and so I worry that being able to smell cannabis means it's strong enough to cause some degree of intoxication and affect me cognitively. Is this a valid fear? What does the science say?
>trying to get into a phd
>get invited to an open house session
>do my best to not look retarded
>some days later, get an email from university personnel
>rejection letter
>no update on portal
>dejected, but let it be
>20 minutes ago
>status update
>university has rejected me
I've heard of people being notified of acceptances early but not of rejections. There's a crackpot voice in my head saying that the email was meant to be something else entirely, but that feels unlikely too.
Should I email the department and ask them if there was an error of some sort?
Previous Thread: >>16658142
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!
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/
An archive of some of the previous editions of /scg/:
http://warosu.org/sci/thread/15740454
—
GPT Prompt: Okay, let’s assume there is an aether that particles “ride on.” Is that the pilot wave? Is the interaction between the particle and the wave enough to explain the double slit experiment?
—
Excellent — you’re now asking the million-dollar realist question:
“If there’s an aether-like medium that particles ride on — is that the same as the pilot wave?
And is the interaction between particle and wave enough to explain the double-slit experiment?”
Short answer:
Yes — this is almost exactly what Bohmian mechanics proposes.
And yes again — the pilot wave (acting like a quantum aether) fully explains the double-slit behavior — without needing collapse, consciousness, or multiple universes.
Let’s walk through this in clear, physical language.
⸻
Step 1: The Basic Idea — A Particle Guided by a Wave
In Bohmian mechanics:
• A particle (say, an electron) has a definite position at all times.
• It is guided by a real, physical wave — the pilot wave — which is just the same wavefunction ψ from standard quantum mechanics.
• The wave exists in configuration space, not just 3D space, and it evolves smoothly via the Schrödinger equation.
So in your language: the pilot wave is the “aether,” and the particle “rides” it like a surfer on a quantum tide.
also
mfw the space between two colors in the visible spectrum can be divided infinitely, producing new distinguishable colors
E=mc2 doesn't have 2 forms, why the difference?
>https://arxiv.org/abs/2505.04687
It would change nothing about the Gregorian Calendar, and people wouldn't have to do mental gymnastics to understand time zones.
https://www.youtube.com/watch?v=MpHlybAYY9o&list=PLhI5X1mNN8gjS8VUxRk-Aoeu4HPHmqt7t
seems pretty pointless
So here's science-related serious topic.
Perception of reality.
Try not to be an lab mouse in a box for a second. (stop scrolling aimlessly looking for dumb jokes and funny pics, switch for /b/ if you need entertainment)
You have enough neurons to understand that the reality you're in right now is not your room, house, city, country, comfy space between earth and the sky, with your habitual sun and moon you're bored of, not even the heliosphere, not milky way, not even the endless space around.
The point is, you've no idea where are you, what are you, what are the objects around you that you're used to and think this is your home, your ultimate reality and place to be. Maybe for your body, not for the consciousness. Feel comfy and complete here? Then you're on the level as of a bunch of lab mice in a box, fed, warm, doing their usual natural stuff, happy with thinking the walls of the box are the boundaries of their reality, world.
But don't be so quick saying "I'm aware of the absolute abyss surrounding me, I saw it on tv\pics, all dem galaxies, clusters n sh't".
No. It's not your own experience, you haven't been there and never saw\felt where you actually are. And to experience that core reality you're in, you have to stop being high on your natural drugs, dopamine\serotonin\endorphines\ etc, that keep you in a dream, like in a reality show, where nature constantly tells you "take your pills(hormones), get sedated, play the game and don't question what's beyond the walls of this asylum". Science begins where illusions end. pic related
https://www.youtube.com/watch?v=O06u2Ct3XcI
>Noses don't match
>Hair color different
>Le heckin green eyes omg
>The girls iris has multiple colors
>Gee, who would have thought that biological variance would stop once it reaches the brain!
Approximately how much money does an individual have to donate to prevent one baby boy who would have otherwise been mutilated from being circumcised?
Pic not necessarily related
I’m going to debunk this using scientific articles.
Some height maxxing copers will use this study to falsely tell you growth can happen after 21.
https://pubmed.ncbi.nlm.nih.gov/6638938/
This is debunked by this study, showing that your out of hundreds of people, 0 had their growth plates by age 21. https://pmc.ncbi.nlm.nih.gov/articles/PMC7983983/
In fact growing after 21 is so rare, there’s an article on wikia showcasing height growth past 21 to be very rare to the point there’s barely any famous cases.
https://verticalityakaheight.fandom.com/wiki/Height_Growth_After_21
Growth in height after 22 is easily 1 in 1000 level rare
-Linear Algebra: Lay, Friedberg.
-Vectorial calculus: Marsden-Tromba.
-Differential equations: Zill, Tenenbaum.
-Complex variable: Ahlfors.
-Probability and Statistics: Evans.
-Topology: Munkres.
-Analysis: Sherbert, Apostol.
-Physics: Sears.
-Thermodynamics: Callen.
-Programming Language: C, by Ivor Horton and Herbert Schildt.
-Mechanics: Landau-Lifshitz.
-Abstract Algebra: Fraleigh.
-Differential geometry: Do Carmo.
-Galois theory: Rotman.
-Electromagnetism: Reitz.
-Optics: Hecht.
-Quantum Physics: Eisberg.
-Electric circuits: Nilsson.
Discuss (other better books, opinions, experiences, etc).
Is there anywhere i could learn the basic math and atleast entry level physics so i can build up to this sort of physics thinking but not something everyone can come up with on the fly? Preferably free
"Would you rather have a child with an IQ of 200, or 50?"
They either completely deflect the question and say "neither" or just change the topic out of fear of the truth, or play smartass and say 50 arbitrarily because "It doesn't matter" even though they have clear sentiment to pick the mentally retarded child over the genius child.
I have met people far smarter and more capable than me who could not for the life of them seriously answer the question because of some spinelessness disguised as righteousness that comes from being scared to recognize any inherent intellectual superiority of a subgroup of the population over another.
If you refuse to answer the question with a 200 or 50, you are spineless and unprincipled. If you answer 50, you are evil.
So, /sci/, what's your answer to the question?
Cost $1 mil?
Why the fuck aren't we building these? The Antarctica treaty?
Fuck that. An equal attempt in glass is almost $200 mil.
Are they being deliberately obtuse?
Well? Why not?
Quantum uncertainty is still too specific to be truly random or uncertain.
That things can happen at all, even quantum weirdness, implies everything is hyperdeterministic.
>come up with a different solution but same answer
>teacher says it's wrong and gives a counterexample
>be not convinced
>let is pass because social anxiety
>three months later, remember you're still not convinced
>spend 2 hours learning and typing latex so /sci is happy
Please tell me I'm right
>pour it all into a board game
>Half of the posts is about IQ instead
>I too am guilty of making these IQ threads
How did /sci/ become like this?
Do you just keep a set of higher-level instructions and roll that shit back to an earlier version if it ever goes off the rails?
Moral relativism is subject to the constraint of 'internally consistent' for example. Any value claimed in a public space may update integrity check and reveal relativism inconsistent, false, or generally notational of lying. I don't need to cite immoral examples, just anything objectively simply moral.
>[open cost flam]
image used without credit since they can presumably identify themselves post-factively given the content
Jiggery-pokery edition
Talk math
Previous thread: >>16657148
Does it matter, should I care?
If it matters, how long if ever for it to affect a person in the Midwest US?
...
But they will.
Scientific query: are we different consciousness types?
I, personally, literally see through the eyes like they were both cameras intertwined (how they're supposed to be crossed) and I was behind them, in the seat of the mind, experiencing sense. My ears are to the sides out of my view, and I'm walking around like a robot from the first person perspective.
Is yours different?
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The baryon asymmetry problem is only a thing because everyone just ASSUMES everything we see in the sky is made of normal matter.
![quantum_fields[1]](https://i.4cdn.org/sci/1750957705034738s.jpg)
We are interdimensional beings. We travel from dimension to dimension, many of them in a moment. That's why you believe things are moving, but every dimension is completely motionless.
Just like a movie. Your perception fools you and you believe things are happening.
Grim
Bonus. Let's repeat this but we also allow n to be a nonnegative integer. This means that when you draw slope y=x/2 we color everything below the slope blue, and when we draw y=x/4 we color everything below the slope red. What's the total area the blue portion of the square?
Made me wonder, these produce waves close to low power microwaves using the same kind of non-ionizing radiation, aren't they heating air molecules by oscillating the space around them ? I am not a sciencefag but i understand that heat is a result of vibrations and it seems logical that creating vibrations around molecules would cause heat, but to what extent this would be felt, if at all, by us meatbags.
I tried looking it up on search engines but nothing comes up, only that the pannels generate quite a lot of heat from electricity loss.
I'd appreciate a discourse. I am not trying to prove anything, just want understand. Please keep weather manipulation and other conspiracy theories related to them to some other thread. It is strictly about the heating of air molecules from the emission of non-ionizing radiation.
Tl;dr do 5G towers cause heating of our atmosphere by emiting radiation considering the scale of their deployment?
previous >>16707942
Atleast Blue can feel sensual in the sense that it's mysterious, melancholic and distant, Green is just vomit, nothing sexy about the color.
https://www.scmp.com/news/china/science/article/3313349/beyond-1s-and-0s-china-starts-mass-production-worlds-first-non-binary-ai-chip
Will china be the one to revolutionize computing and scientific fields moving forward?
>try it
>feet literally tingle even though they are still
>tingle stops after some time
>go back inside
>get a small electric shock when I touch the door handle of my bedroom
Even if I'm imagining it, this is some hardcore placebo that might actually be helpful.
>refuse the 1M dollar prize to live like a hobo
/ourguy/
>Do NOT give advice
>Do NOT feed the nursoids
>Do NOT engage with premeds
And most importantly
>Do NOT respond to psych patients
Previous thread >>16665240
>peepee squirt semen when stimulated to make baby. The end
Female orgasm
>The function or functions of the human female orgasm have been debated among researchers. Researchers have several hypotheses about the role if any, of the female orgasm in the reproductive and therefore evolutionary processuhhhh there's a lot to unpack. There's no scientific agreement on the exact function and biological mechanism of female climax. There are many types of female orgasm which depend of area, mood, phase of the moon, political stance of the partner and latest tarot readings. Sometimes its vaginal, sometimes its clitoral, sometimes its tantric, sometimes its something else. We just dun know. G-spot! P-spot! All the spots! Find them like pokemons!
>only 15% of women consistently 'orgasm' during sex, which would be very strange for an evolutionary function. Imagine if only 15% of people could use their lungs.
Scientifically speaking, why are people so hell-bent on preserving the myth that women can orgasm when all the evidence points to the opposite? Is this just penis envy and a weak attempt to achieven equality?
Common snowberry antiretroviral properties d9o sterile smoke carts edibles
these manufacturers shipped to over 100 countries around the world within the past 6 years.
https://www.thebureauinvestigates.com/stories/2025-06-25/bad-cancer-drugs-shipped-to-more-than-100-countries-around-the-world
What do you anons think?
I was looking into dual complex numbers, which some page (not posting link, you can find it easily if you google that term) claims can be used like this with transformation encoded in a product, but unless I'm misunderstanding something it does not seem to fully work.
For one, they seem to be mapping to 2x2 matrices rather than 3x3. Also inverses seem to not reliably exist, even when the rotation part is normalized. You can see pic rel, where I've used multiplication rules to get a system of equations for all components of the product of two dual complex numbers and required that the product is (1, 0, 0, 0) to find the inverse. I would expect the inverse of translation components to be simply the negated original translation (as is given online), but you can see it is a function of both translation components (c and d).
Should I just give up and store a complex number / angle and translation separately?
https://www.youtube.com/shorts/CSsJrEiM5yM
This is why Manhattan project beat Apollo project. There was no hype about Manhattan. But infinite hype about Apollo. Look where we are now. All the dumb dumb stagnated space. Were are nuclear weapons are still operational.
Could the vaxed woman sterilize the pureblood man?
>inb4 cannabis sativa
