[a / b / c / d / e / f / g / gif / h / hr / k / m / o / p / r / s / t / u / v / vg / vm / vmg / vr / vrpg / vst / w / wg] [i / ic] [r9k / s4s / vip / qa] [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]


Starting February 1st, 4chan Passes are increasing in price.

One year: $30, Three years: $60


[Advertise on 4chan]

[Catalog] [Archive]

File: file.png (1.74 MB, 1500x1000)
1.74 MB
1.74 MB PNG
Was it ever worth becoming a doctor in the US?
>>
>>16555162
it was before medicine was taken over by government and insurance companies.
now doctors are just cogs in a giant industrial machine.
>>
>>16555162
are you shitting tits right now?
doctor usa is like top job, preem benefits.
twatslice

File: soyence censoyship.jpg (288 KB, 1017x939)
288 KB
288 KB JPG
Why is science so heavily censored?
What are they trying to hide?
8 replies and 1 image omitted. Click here to view.
>>
>>16555516
I think it was something I came across on unz., they were talking about the worls of men like gunnar heinsohn who found that most of the historic timeline of the first millenium is fake and that the scribes duplicated events to make it fit. remarkably one example they split st paul into 3 entirely separate groups all in the same area of antioch but separated aross several centuries. they push events they didn't like deeper into history
which brings up sumer/chaldea

my research led me to sumer and the legacy of debt jubilees.
my thoughts were that what jesus was was a guy promoting a debt jubilee to undo all the problems rome was having with their debt problem.
I suspect the cult of rome took it over.and redirected it but I've not properly followed that up, part of it is [robably because it started in places like alexandria so rome wanted to monopolise control.
and then there's the really weird parts about britain and the great cataclysm that left traces of black earth all across europe and north africa from london toe memphis
>>
>>16555527
>gunnar heinsohn who found that most of the historic timeline of the first millenium is fake and that the scribes duplicated events to make it fit.
It is a very popular theory today. But I am sceptical about it. It could be the truth, sure, but I think we should wait a little longer, so that ai is going to make science of its own. So far it can only parrot the consensus, thus it is on par with regular academicians.
>>
>>16555449
Yes, hello. I would like one McNutt, hold the salt.

It's because you have one political class largely made up of actors who just want what they want. I was always racist growing up, but I always wanted to address any racial shortcomings through genetic engineering and social conditioning. These people in the meanwhile believe that any evidence contrary to their world view is just people out to wrongly target others. We're both bigoted, but how we approach these things is different. Like how a lot of dead scientists truly believed in God but didn't want to pervert the truth of their discoveries because they believed it would be profane because God made it, and now you get a lot of types that just lie because they don't believe there is significant oversight to punish them.
>>
>>16555536
>It is a very popular theory today.
I can see it, I try to stick to the more legitimate inconsustencies highlighted by the archaeology not the wild speculators. It definitely makes a few things more logical timeline wise.
A weakness I see is heinsohn's affinity with jewish organisations and warmongerers and that soviet russian guy running speculative estimates off of astrological movements
>>
>>16555510
>>16555527
>>16555559
Did you curved the conversation manifesting a sophisticated form of censorship?

File: bing_generated_qrcode.png (3 KB, 180x180)
3 KB
3 KB PNG
Please read if at least one person applies some of this things can change (in qr)
>>
your curiosity wont get the better of you
>>
this is the QR code link
https://www.mediafire.com/file/1yosotguz8ldt7o/Human_mechanics.pdf/file
it's just some schizo paper
>>
you're a fucking retard if you think people would actually scan some random qr code on the internet from a complete stranger, on 4chan of all places. do you think i want my system compromised? no, i don't and neither does anyone else here you fucking moron

File: 1736933802500806.png (315 KB, 594x598)
315 KB
315 KB PNG
Grad students and ex grad students
>who was the best grad student you knew
>What did you wish you knew or did before becoming one
>How to be a great grad student
>>
>>16555301
define “best” and “great”
>>
The thing all the best grad students I knew had was luck, some kind of intrinsic drive, and a work ethic. Luck being the most important of these for success beyond just finishing and having a few publications.

I wish I had known in advance that my recent run of good luck would not hold.

Explain this.
32 replies and 5 images omitted. Click here to view.
>>
>>16547173
Just two jets flying in Melbourne
>>
>>16547312
The rich guy is a democrat. Trump needs to proscribe all billionaires that financed or incurred in woke activities, so it will be the duty of every man to kill them and reclaim their property.
>>
File: 0D812D92000005DC.jpg (99 KB, 1024x615)
99 KB
99 KB JPG
>>16547173
>>
>>16555233
Huhuhhuhuahu
>>
>>16555233
that can be explained by conservation of momentum

File: navierstokes.png (204 KB, 1276x957)
204 KB
204 KB PNG
We’ve got the Navier-Stokes equations, but solving them for turbulence feels like taming a hurricane with a napkin. It’s chaotic as hell, and we only describe it statistically, not deterministically.
I ask:
Is turbulence fundamentally unsolved, or do we just lack the computational power to brute-force it?
Why does laminar flow break into turbulence at certain Reynolds numbers? What's actually happening at the transition?
Is there a clear boundary for turbulence, or is it just a messy spectrum?
4 replies omitted. Click here to view.
>>
>>16554881
Messy spectrum. Chaos theory in general seems to be that way. There was an old blog on Lorenz attractors that showed how as one coefficient increased, the system would oscillate periodically, semi-periodically, then increasingly chaotically.
Similarly, three body systems are famously chaotic, yet the sun-earth-moon system is mostly predictable. And with fluids, there's obviously the Reynolds number.
There's clearly a threshhold that can be calculated.
>>
>>16554891
>What would you brute-force anyway?
aerodynamics for videogames like Kerbal Space Program. and no, the state of the art is not "good enough"
>>
>>16555247
Good luck with that
>>
>>16555247
Ferram does a decent job. The main problem with vanilla aero in KSP is that it just assigns coefficients of lift and drag to each part independently, which leads to cheesy bullshit like clipping wings together. Ferram calculates the drag and lift of the entire vehicle and makes it a function of Mach number.
>>
>>16554881
>Why does turbulence exist?
Because it likes to!

Aren't irrational numbers... well... irrational?
144 replies and 23 images omitted. Click here to view.
>>
>>16555113
>Shut up and calculate.
This is why there is a crisis in science.
>>
>>16554995
>[...] to zero using limits.

Limits are boundaries.
And boundaries are exactly somewhere.

Example:
B = {(x, y): x^2 + y^2 < r^2} = open disk
P = {(x, y): x^2 + y^2 = r^2} = circle
W = {(x, y): x^2 + y^2 > r^2} = infinite "corona"

P is the boundary of B.

>>16554987

In that image, B is black, P is purple, and W is initially white.
>>
File: download.gif (2 KB, 360x40)
2 KB
2 KB GIF
The accompanying plot is of the following interval.
0 ≤ x < 1
The foregoing interval is half closed and half open.

The point at 0 is closed.
The point at 1 is open and represents: 0.999...
>>
>>
>>16555580
omg!
what mysterious numbers are these?

File: m1npm1.jpg (35 KB, 484x413)
35 KB
35 KB JPG
Is this accurate?
Is the term "side effects" in terms of medicine just a less dangerous sounding euphemism for poisoning that was developed in order to help scientists make more money selling poison?
47 replies and 3 images omitted. Click here to view.
>>
>>16523354
Semantics and NLP are powerful tools
>>
>>16523403
>if you drink 20 gallons of water in a day you will die from "water poisoning."
correct
>>
>>16537288
So what do you call it when a chinese royal is assassinated? An "intentional side effect"?
>>
>>16553163
They work particularly effectively on people with mental monologues because language controls their thought processes and thinking abilities
>>
>>16523403
How can people possibly disagree with what you just said? These are actual facts. This is how it works and somehow you have people bickering and squabbling. You didn't pick a side, you just explained how the development of these drugs works and for some reason that ruffles feathers.

File: 1520164454956.jpg (18 KB, 698x400)
18 KB
18 KB JPG
Which way, white man?
140 replies and 14 images omitted. Click here to view.
>>
>>16536549
Kind of a retard take to call vectorization an antipattern in a language called MATLAB ("MATrix LABoratory")

The fact that matlab is proprietary is a genuine downside, though torrents exist. Still I wouldn't recommend sticking to matlab, unless you're the type of stemcel who's gonna end up banging your head on simulink anyway. Then again perhaps people should not listen to me; if they did, they'd end up using fortran (likely for something it's not good for)
>>
>>16536372
if your uni or corporation pays for matlab then you might as well use it
very simple and makes very nice graphics
everything is built-in

Python can pretty much do all those things, but you need to learn packages like numpy, scipy and other shit
it gets easier every year so I'm pretty sure Python is the future of scientific programming
>>
>>16536670
ah yes, possibly the worst programming language in the world, even worse than perl
>>
>>16536549

Python gives bad practices for software development (and more generally how a computer works). But you can somehow recover from it.

With Matlab, it's over.
>>
>>16536573

I think the GIL was "removed" in last stable releases.

File: IMG_2017.jpg (160 KB, 750x443)
160 KB
160 KB JPG
17 replies and 3 images omitted. Click here to view.
>>
File: safe.png (976 KB, 2640x2542)
976 KB
976 KB PNG
As far as natural disasters goes, Michigan is pretty boring. Of course you need to stay out of cities like Detroit, Flint, and Benton Harbor, but those are due to human disasters.
>>
>>16555404
either trolling or a 20IQ monkey retard
>>
>>16554684
The only way to fight climate change is to massively decrease the population of China and India. Every other action is completely irrelevant.
>>
>>16555610
or just someone who did a geological survey before buying land and made sure not to buy worthless land that floods after a little rain
>>
>>16555373
Katrina was an artificial storm

File: the chad thicc lover.png (262 KB, 863x782)
262 KB
262 KB PNG
My wife has turned into a belligerent retard since taking this shit, what is the story with ozempic fellas? I had a real bad feeling about it from the start
18 replies and 1 image omitted. Click here to view.
>>
>>16555576
yes basically that
although I remember some sort of issue with rottingh food in their abdomens
>>
>>16555576
I have eaten giant puffball mushroom before.

It's not particularly tasty, very heavily carried by marinades and breadcrumb frying
>>
>>16555588
don't they actually use something stronger than ozempic
>>
>>16555608
Not sure, I can see the fat loss version being a higher dose.
>>
>>16555611
I think they had to relabel it so they could get it through on some other legal technicality

they markted it like crazy though.

File: download (5).jpg (7 KB, 200x200)
7 KB
7 KB JPG
BH singularity
>A mathematical artifact that to interpret physically would constitute an over-fitting of a necessarily limited model

Vacuum energy
>Noooo like literally the distribution suggests a nonzero probability of a particle being there! So its, like, basically there!!!

Why are QMfags like this?
>>
yeah you're right everything's just made up we should just sit around and jack off our subatomic cocks with thermal paste

File: Time travel.jpg (192 KB, 960x1280)
192 KB
192 KB JPG
i believe so, but you can't go forwards in time faster without imploding
11 replies and 1 image omitted. Click here to view.
>>
>>16554961
>you can't go forwards in time faster without imploding
If relativity to be believed, then it's the exact opposite. One can travel forwards in time by warping gravity aka time dilation. Time is relative to motion. Hence space-time.

https://pmc.ncbi.nlm.nih.gov/articles/PMC11336052/

Going backwards is extremely difficult due to entropy. It would take a nearly infinite supply of energy to inverse the flow of time. Even then you would have to fold spacetime in on itself to move backwards to a point in the past.
>>
>>16555567
the only way you could go back in time is you'd rewind the whole universe and everyone forgets everything that happened. in this universe. anything else is just weird as far as logic goes
we also have no choice but to travel in the future at various rates depending on our position, it's just undetectable in our everyday experience.
>>
>>16554961
If backwards time travel was possible, we would have seem the the effects of it already.
>>
>>16555579
>the only way you could go back in time is you'd rewind the whole universe and everyone forgets everything that happened.
Scientifically explain how to defy entropy and the laws of physics. Keep in mind going to the future stays entirely within these limits. You can witness the heat death of the universe sure, but you can never come back to this moment in time ever.
>it's just undetectable
Ah, so you can't explain or verify your results. /x/ is probably a better place for bait.
>>
>>16555592
>Scientifically explain how to defy entropy and the laws of physics.
I didn't say it's doable, just going through the logic of it. You can't go in some other place which is our past. Don't know how you'd rewind our universe while still keeping your memories. Sounds weird. So if we ever did it we wouldn't detect it. Any moment could be past for us, without memory of any future. The logic of backwards time travel doesn't make any sense.
Forward time travel makes sense and constantly happens, just look at your phone with GPS on, dot being where you actually are is direct proof we always and constantly time trave to the future. Issue is GPS satellites are far enough that required precision shows the time travel, makes it a problem. But at individual level we can't detect it with our senses, it's irrelevant. But it constantly happens.

File: IMG_3410.png (309 KB, 1085x1102)
309 KB
309 KB PNG
>median verbal IQ (which includes verbal reasoning, comprehension, working memory, and mathematical computation) of 126
How can this be replicated?
15 replies and 3 images omitted. Click here to view.
>>
>>16553801
cuts both ways
>>
>>16553679
If I remember this dataset right weren't the highest performers quakers?
>>
>>16548515
wrong af
if this were true then we'd see a noble prize every year from jews
>>
>>16548746
>>16548772
Iirc the whole "jews are higher IQ meme everybody quotes comes from single study of children (6-12 i think?) amongst the private schools in new york.
The jewish one scored the highest average on verbal IQ
>>

File: pYHy5pJ.jpg (100 KB, 640x639)
100 KB
100 KB JPG
knowledge hungry wizards, i humbly knock upon your grand tower libraries to be enlightened in the ways of learning. what techniques do you employ to assimilate knowledge quickly and efficiently? how does one start the process of learning, and keep momentum? any and all advice is greatly appreciated, o' most powerful wise ones!
>>
study something that you actually enjoy learning about. i've taken a liking to quantum physics lately. keep looking into different subjects and see what you find fascinating, whether it's biology or computer science or even something creative like art. you keep momentum by being genuinely passionate about something. and you also have to be willing to be wrong sometimes. making mistakes is one of the best ways to learn. and books, too.

i think a lot of people these days are too quick to write off books as useless because of how accessible information is nowadays on the internet, but if you think about it, a book is far more structured learning than if you were to go on google and try to figure everything out yourself. a quality book will tell you how something works start to finish, top to bottom. an even better one will give you some practical exercises in the subject to try out. so do not discard books. after all, every wizard needs a spellbook, right? keep your tome of arcane knowledge close
>>
>>16555378
Anything that works, excluding watching videos. They are most shitty kind of information you can ingest.
>>
File: 1706167669280722.png (1.12 MB, 685x1003)
1.12 MB
1.12 MB PNG
>>16555378
First for Ars Notoria
>>
File: pwp.png (1.13 MB, 723x659)
1.13 MB
1.13 MB PNG
>>16555447
This. "Find something you're passionate about" although cliché is legit advice, once you find something that really sparks your interest it all becomes a cake.
Know what works for you as well, for example I structure my study sessions in such a way that I spend most of my time struggling my way through exercises and just a tiny amount reading theory, i.e. The Pareto principle, nevertheless this varies across subjects. Other than that I would say spaced repetition does deserve the hype, in my opinion slamming Anki shit is worth it.
>>16555442
Most videos are just watered down-microwave cooked material, nothing but failure comes from superficial study.


[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.