[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]


[Advertise on 4chan]

[Catalog] [Archive]

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

(More resources in replies)
3 replies omitted. Click here to view.
>>
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: pjnYE.jpg (731 KB, 2044x1616)
731 KB
731 KB JPG
Welcome to NASA edition

Previous: >>16082724
148 replies and 35 images omitted. Click here to view.
>>
>>16085892
Knew it was Merc
>>
>>16085883
ive been thinking that having manned stations is actually a decent de-escalation tool because it raises the potential escalatory cost of a strike on space infrastructure. sort of like how cyberattacks are attractive because they don't necessarily create space for a kinetic escalation, strikes on space infrastructure might be seen similarly if there's no risk of loss of life. but if you have to kill some soldiers or, better, civilians and possibly civilians of random uninvolved countries, it could be seen to disincentivize that sort of attack. China knocks out satellites in a deniable attack vs China knocks out satellites, kills three US soldiers and some french and Russian astronauts. which justifies a stronger response?
>>
>>16085772
lmao
your analysis is completely backwards
you don't need multiple lunar GPS providers (SpaceX will probably do it anyway) and everything else needs as much research and as many providers as possible
>>
>>16085839
two: you need at least one woman and one man and something to trade for pussy
>>
>>16085636
I think the real money move is to be the one to set up infrastructure, which a lot of these are. Elon is setting himself up to be space Vanderbilt, but think like the general store/saloon/brothel owner in the gold rush boom town. Meme space mining and manufacturing startups will come and go, but if you're in a position to sell them water, air, power, data, ect, you'd be sitting pretty. Plus, there's a build it and they will come factor. If said meme startups don't have to worry about where they can get that stuff, it lowers their viability threshold and maybe one of them might stick

File: 1000001045.jpg (1.1 MB, 5001x3750)
1.1 MB
1.1 MB JPG
where are all the aliens???
39 replies and 3 images omitted. Click here to view.
>>
>>16084866
there's no safe zones, it's all poisoned by radiation?
>>
>>16083984
https://youtube.com/shorts/8MnHHLU1lSI?si=gs9dxUIN3a_uRHmz
>"aliens are the conspiracy for stupid people" - Tim Dillon
>>
idk
>>
>>16084179
Chilling, relaxing
>>
Interstellar travel isn't economically feasible. That's why we won't colonize other star systems and neither will the the ayys. Most space development is private sector now and focused on exploiting the resources of the solar system. These companies won't go to other star systems unless there is huge money potential.

File: e1fzta3svy461.png (1.31 MB, 1300x650)
1.31 MB
1.31 MB PNG
With the new ai robot shit coming out, how long do you all think it will be before we get android or even cloned people? I need a monika in my life asap PLAP PLAP
2 replies and 1 image omitted. Click here to view.
>>
>>16083375
Bump
>>
>>16083375
Why would a robot need to be sentient for you to fuck it?
>>
>>16083375
https://en.wikipedia.org/wiki/Optimus_(robot)

10 years? Elon will probably realize optimus sells better if it's soft. It's also less dangerous if it falls on you
>>
>>16084383
I would prefer clones so i can impregnste her
>>
File: 1672498335336.jpg (143 KB, 991x1200)
143 KB
143 KB JPG
>>16084520
I don't want my robot waifu to be soft.

File: 63626 - SoyBooru.png (301 KB, 775x849)
301 KB
301 KB PNG
The arithmetic progression of the form 3n+1 contains at least one prime.
Assume it doesn't, then for any natural a, b, (3a+2)(3b+2)=3c+1 so that there is a bijection between naturals c and (a, b).

But notice that (3a+2)(3b+2)=((3a+1)+1)((3b+1+1))=((3x+2)(3y+2)+1)((3z+2)(3w+2)+1)

Notice something weird?
You guessed it if you look at mod 3, the remainder (number not factored by x or y or z or w) tends to a very big number the more such "nesting" is performed on the form (3n+2).

Brilliant! In fact this proof works for every prime p and 0 < q <p for the progression pn+q.

I won't tell you the details of course because I don't want to spoil anything (hint: just decompose a progression into corresponding multiples of progressions(
>>
File: 19812 - SoyBooru.png (25 KB, 721x789)
25 KB
25 KB PNG
Implicitly, [math]\alpha(n)=3n+1[/math] is and endomorphism on the natural numbers and so is [math]\phi(a, b)=(3a+2)(3b+2)[/math] so that the composition [math]\alpha^{-1}\circ\phi[/math] is a bijection.
Then there's nesting [math]\phi=(\phi+1)(\phi+1)[/math]
And finally there's a contradiction since there is a very big margin in the image of [math]\alpha^{-1}\circ\phi[/math] once nesting is applied.
Hence there is at least one prime number.

Tadaa..
>>
>>16085829
Uhhh I meant a surjection
>>
>Numbers that are +1 or -1 an even number have a chance of being prime.
Holy shit

Are there any intellectually stimulating videogames? Do any of you play videogames?

I've cut myself off entirely to focus on school and reading as videogames represent a slippery slope toward a hedonistic and self sabotaging lifestyle for me, but I feel the itch again. I figure maybe if I can at least convince myself what I'm playing is beneficial to some sort of neural processes and also limit my time, perhaps I can enjoy something I've enjoyed so much but in moderation.

>t. ex player of world of warcraft for 12-16 hrs a day
I can't let myself go back to that shit man. Its basically a lifestyle of being plugged into a dopamine-drip simulator. Its barely even a fucking game
11 replies omitted. Click here to view.
>>
Any fellow Factorio chads here?
>>
File: nobrain.png (4 KB, 505x572)
4 KB
4 KB PNG
>>16084711
>Baldurs Gate 3
>Starfield
>>16084735
>>
video games are for children, if you're playing them as an adult its because you have arrested psychological development. before the term "retarded" became stigmatized, "arrested psychological development" was referred to as "retarded psychological development".
https://en.wikipedia.org/wiki/Arrested_development
>the UK's Mental Health Act 1983 used the term "arrested development" to characterize a form of mental disorder comprising severe mental impairment, resulting in a lack of intelligence
>>
File: frog.jpg (181 KB, 1024x1024)
181 KB
181 KB JPG
>>16085246
LMAO
>>
>>16084265
KSP is a lot of fun and you learn orbital mechanics along the way.

File: IMG_1591.jpg (160 KB, 500x625)
160 KB
160 KB JPG
Why did the scientific revolution happen in Europe instead of other parts of the world, like the African continent?
95 replies and 14 images omitted. Click here to view.
>>
>>16043750
Happened in america and asia
>>
>>16069837
>nigeria 84 iq
what makes them so much smarter than the rest of africa?
>>
>>16084426
Probably the Igbo and maybe the Yoruba.
>>
File: nairaland joke.png (14 KB, 1014x458)
14 KB
14 KB PNG
>>16084426
Nairaland has excellent memes
>>
>>16045030
>So Arabic science in the 11th cent faded away because of this?
I don't agree with that anon but a big reason the Muslim world censored the use of the printing press (with notable exceptions given to Jewish communities) is because early printing presses didn't print the Arabo-Persian script that well. That and Big Calligraphy(tm) lobbied against it since calligraphers were big time artisans in the Muslim world.

File: math.png (324 KB, 2544x2788)
324 KB
324 KB PNG
Sup Math Nerds
>>
>>16085729
Sup. Ever heard of the number 4? I've used it a few times.
>>
>>16085729
>>>/x/
>>
>>16085732
>>16085744
4 is nice
>>
>>16085732
4 is a chump.
"What is 2 plus 2?", that's chump talk.
7, bitches. 7 is a fucking number.

File: tortured2.png (93 KB, 1344x891)
93 KB
93 KB PNG
Tortured phrases edition.

Last Thread: >>>16021329

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/


Comment too long. Click here to view the full text.
190 replies and 16 images omitted. Click here to view.
>>
>>16064725
You should know the job market is terrible. Can't get a job out of ug? You can waste more time getting a masters just to finally get that 80k job.
>>
>>16084315
Graduate with the CS degree asap, math undergrad is notoriously useless. Shitty resume will prevent you from entering big tech but you can make a decent living being a code monkey somewhere small.
>>
File: inco happy.png (243 KB, 794x1436)
243 KB
243 KB PNG
How do I break the procrastination cycle?
>get assignment
>worry about making the perfect assignment because expectations are always vague
>brainstorm
>feel tired from worrying and planning
>daydream for a couple days
>no sleep because worrying
>realize I have ~four hours before it's due
>everything snaps into place
>receive a 90%
This isn't good for my health and relationships. I'm in my Master's now, and I don't understand it. How do I achieve the t. minus 4 hours mindset before my work is due?
>>16071346
Congratulations, anon! That's great!
>>
File: humiliation-ritual.jpg (7 KB, 300x168)
7 KB
7 KB JPG
Has anyone successfully networked with strangers and landed a job?

I heard stories from only 1 graduate that got an interview because the hiring manager happens to like him. It has never worked in my experience despite showing up to these events well groomed and properly dressed.

Tips and tricks is appreciated.
>>
>>16067045
not him but I work in MEP as an EE. you need to be able to get your PE eventually, so ABET or nothing.

File: 2T8SEZ50U8fZ.jpg (158 KB, 1007x1600)
158 KB
158 KB JPG
How should science deal with the venereal disease epidemic?
What caused the epidemic to begin with?
165 replies and 25 images omitted. Click here to view.
>>
>>16007020
Let it burn.
>>
>>16007020
>What caused the epidemic to begin with?
lack of morality in pubic life
>>
>>16008230
>most people start fucking in highschool
>you're saying men can marry 9yo.

That's the point. Teenage girls get inducted in the seriousness of marriage and sex as soon as it develops, instead of treating it like a stupid game (remember women are the ones causing this in the first place). They get a more mature guardian to guide them. Boys get cucked at that age but can look forward to marry as soon as possible from social pressure.

It's brilliant, next you have to shun public display of homosexuality so faggots stop grooming children.
>>
>>16009962
Wouldn't that make prevalence of the STD/STI epidemic almost non existent in all black countries?
>>
File: 1709965506475.png (134 KB, 600x600)
134 KB
134 KB PNG
>>16062514

File: qLjaC.jpg (53 KB, 664x433)
53 KB
53 KB JPG
wtf is this all about?
95 replies and 14 images omitted. Click here to view.
>>
>>16081011
Stop dumping shit from chinks wtf
>>
>>16046200
lol lacist
>>
>>16079027
women don't have prostates
>>
>>16084550
Apparently scientists are too low IQ to have figured that out yet
>>
>>16046169
Link the study or kys

File: perelmeme.jpg (24 KB, 250x500)
24 KB
24 KB JPG
Shrigma male of St Petersburg edition
Talk maths, formerly >>16035182
280 replies and 32 images omitted. Click here to view.
>>
>>16085671
If n gets sufficiently large you can easily say (n, n^2)=(n, 2n] U (2n, 4n] U ... [2^xn, n^2) via induction, and assuming bertrands postulate this would prove lim p(n)/n^2 -> 0
>>
File: 9f0.png (120 KB, 612x729)
120 KB
120 KB PNG
>>16085671
>>
>>16085316
>Euler proved there were more primes than squares
The last time I checked sets of primes and squares were infinite. Was there any breakthrough in numver theory since?
>>
>>16085253
this is helpful thank you anon
>>
>>16083081
Hey, making fun of mentally ill people is a serious offence. I like that you’re trying to help them tho. Maybe just say it with a different tone, jackass.
You wouldn’t want to return to Earth to be mentally ill, would you? Maybe you already are, who knows.

File: nofunskinallowed.jpg (739 KB, 1070x724)
739 KB
739 KB JPG
If you added up the circumference, volume, or surface area of all foreskins amputated since the beginning of time, what do you think it would be?
2 replies omitted. Click here to view.
>>
>>16083252
>amputated
I had someone tell me in an argument that it's not an amputation. How dare I compare it to something serious like that?
>>
>>16083252
what is the mass of a baby's foreskin??
>>
>>16083252
A waste of time
>>
>>16084875
>nnnooooo it's just a "snip"
:^|
>>

File: 03-18-18-47-51.png (784 KB, 844x1306)
784 KB
784 KB PNG
https://www.popsci.com/environment/bald-eagle-eggs-wont-hatch/
Its too cold in southern California for bird eggs to hatch this year
1 reply omitted. Click here to view.
>>
>>16085853
>it's warm
>GLOBAL WARMING IS A REAL
>it's cold
>ITS JUST WEATHER YOU SCIENCE DENIER CULTISTS
like a clockwork
>>
>>16085853
>>16085857
It's not even cold weather in California. The eagles are simply breeding at a very high altitude, according to the article which no one seems to have read.
>>
>the current temperature is at the exact mean as measured over the past 100 yeas for this precise date and time
>it's the jews
>>
>>16085862
>the global warming institute
fake af and equally gay. would you stop posting that propaganda slop here?
bald eagles build nests that they occupy for decades on end, but if something goes wrong on year the tend to abandon the nest and try a new location. that nest has worked out in previous year, but it didn't this year because the weather in SoCal is so much colder this year
>>
>>16085876
>the climate change institute says that the weather is exactly the same as it has been
>somehow this is a conspiracy

>because the weather in SoCal is so much colder this year
Got a neutral source on this? According to my weather app it's like 24°C in socal.

File: T9DA.jpg (143 KB, 1092x1689)
143 KB
143 KB JPG
(((Monica Stein))) from (((Nature))) says that impossible to know exactly what a scientist looks like.
Her sans evidence assertion flies in the face of everything I've learned here on /sci/.
Is Steinberg correct or do all scientists look like Twum?
22 replies and 3 images omitted. Click here to view.
>>
>believe a nigger or a jew
I don't know what to do fellow /sci/entists
>>
>>16067654
With an average IQ of 68 in Nigeria, I doubt very much gets done in your lab if half of the "colleagues" are Nigerian and women at that.
More likely, you are a disinfo kike funded by kikes to convince us that niggers are good. Well they aren't, they are a plague.
>>
>>16068784
>tenths
More like thousandths to get an IQ 3 standard deviations up at 115 (which is on the low side considering this is a "lab")
>>
If only there were a recognizable template for what a scientist looked like that could be display to youngsters so that they could recognize scientists by their appearance
>>
File: twum's birthday.jpg (217 KB, 1440x1440)
217 KB
217 KB JPG
>>16084568
well meme'd


[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.