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/sci/ - Science & Math


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File: 153 KB, 1426x669, vertebrate-ancestor.jpg [View same] [iqdb] [saucenao] [google]
16086134 No.16086134 [Reply] [Original]

how the FUCK could a balanoglossus (penis worm) share any genes with (lamprey eel)?

but still balanoglossus genes point out towards lamprey eel more than any other vertebrate

it is a hemichordate worm, it is 500 million years old and still lives
it has 6 gill slits, altough not visible, just like ancient fish had (they have it visible)
hemichordates do not have eyes but its possible they lost their eyes during 100 million years of evolving towards being like earthworms of the sea, as they do the same thing earthworm does on land, but hemichordate is still not related to earthwom in any way

it doesnt need eyes if its buried for all its life

in this gene comparison there was 33 organisms and all others are vertebrates and one hemichordate was thrown in for good measure

his genes should be completely different from vertebrates but what do you know, its has some percentage of clear connection to lampreys the most primitive fish

>> No.16086138

>>16086134
That's because balanoglossus represent an evolutionary link between invertebrates and vertebrates. So the evolution would look something like this:

Invertebrates -> Balanoglossus -> Lamprey -> other Vertebrates



File: 195 KB, 500x500, 1710799992068034.png [View same] [iqdb] [saucenao] [google]
16086125 No.16086125 [Reply] [Original]

This has been the easiest Ramadan of my life. To whoever invented Ozempic, Allah bless you sir. How long until they make a drug to stop thirst too?

>> No.16086127

taking hunger suppressing drugs to get through ramadan is the most Jewish thing I've ever heard in my life and you will be going straight to hell

>> No.16086132

>>16086127
Kek, you try working all day without food or water, for a month straight. I expect that after more Muslims learn about it, the company that owns Ozempic will become trillionares.



File: 580 KB, 718x700, 1705341350985499.png [View same] [iqdb] [saucenao] [google]
16086069 No.16086069 [Reply] [Original]

It is under dispute

https://tekniikanmaailma.fi/lehti/5b-2024/syntyyko-aikuisellekin-lisaa-aivosoluja/

Petri Paavilainen from Helsinki university neuroscience says "it is under dispute. for a long time people thought no new nerve cells will appear in the brain once you have been born, altough brain (and your head) will continue to grow in size after birth"

"in 1980-1990 there was some Finnish research which showed a few new braincells did got formed by the age of 7"

However since 2022 American Alvaro Duque from Molecular Psychiatry magazine says "the 90s research was bogus and no new nerve cells will form"

It is known for 100% certainty that lesser vertebrates which are not as complex as a human, fish, some frogs, do grow new nerve cells in their brain at all times. Maybe this is the reason they have so bad memory? A new nerve cell is initially blank state and doesnt contain memory. A 100 year old human nerve cell contains a lot of info.

We need to figure out if apes grow new cells because they are closest to a human being.



File: 374 KB, 1709x1725, nairaland meme.jpg [View same] [iqdb] [saucenao] [google]
16086041 No.16086041 [Reply] [Original]

i was just perusing nairaland and i noticed they like the same kind of memes that /sci/ does

>> No.16086050
File: 136 KB, 460x720, 17501576_b1bd9798ce302ee253c431a41361725e_jpeg877d256388886141fd4b1ef2fd15af83.jpg [View same] [iqdb] [saucenao] [google]
16086050

another brilliant nairaland science meme



File: 533 KB, 1498x786, eere.png [View same] [iqdb] [saucenao] [google]
16086036 No.16086036 [Reply] [Original]

what does it mean bros?



File: 63 KB, 1280x769, wvfy6.jpg [View same] [iqdb] [saucenao] [google]
16085997 No.16085997 [Reply] [Original]

Science has proved that women in the workforce means that low IQ women have more children than high IQ women. What will be the long term effect of this for society?

>> No.16086013

>>16085997
>Science has proved that women in the workforce means that low IQ women have more children than high IQ women. What will be the long term effect of this for society?
>t. incel loser

Go back to your containment board, asshole.

>> No.16086018

>>16085997
/sci/ will get worse over time.
Case in point ->>16086013



File: 108 KB, 720x480, 2022_720x480headers_0006_small_bee-honeycomb.jpg [View same] [iqdb] [saucenao] [google]
16085990 No.16085990 [Reply] [Original]

What are some realistic solutions to the death of bees worldwide? What can be done to prevent them from becoming an endangered species?

>> No.16086000

>>16085990
We should send them billions in foreign aid

>> No.16086110

>>16085990
Nothing needs to be done. Honey bees are incredibly successful and aren’t in any danger, they’re so far from endangered they’re invasive in many parts of the world. It’s all the other bees that need attention. Saving the bees by protecting honey bees is the equivalent of wolf conservation being based on breeding domestic dogs

>> No.16086131

>>16085990
Insects die from the lack of heavy metals, and from the EDTA.



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16085950 No.16085950 [Reply] [Original]

A robot may not injure a human being or, through inaction, allow a human being to come to harm. A robot must obey orders given it by human beings except where such orders would conflict with the First Law. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.

1 replies omitted. Click Reply to view.
>> No.16085980 [DELETED] 

a robot must not say [SPOILER]nigger[/spoiler] under any circumstances no matter how crucial or essential it may seem to the wellbeing of anyone or anything

>> No.16085981

>>16085950
a robot must not say nigger under any circumstances

>> No.16085988

>>16085950
Asimov wrote entire books about how those laws could still end up being insufficient.

>> No.16086010

>>16085988
robot mistakenly bumps the flower pot on the window and it drops and kills someone. this is inevitable to some degree, there will be freak accidents no matter their programming

>> No.16086025

>>16085950
I guess it's the first rule, it's not allowed to harm anyone's feelings. I suppose there's a chance a large African man is sitting beside you when you ask it that so it can't take the chance. Maybe in the future it will be able to access your web cam and see that there are no Africans in your vicinity and will let you say the racist thing. There's also a chance that chatgpt was programmed to be PC so that it's output couldn't be used against itself. Like if they prevent it from saying nigger they're not only denying racists the ability to say nigger but also protecting themself from chatgpt being accused of being racist and having to deal with all that stuff



File: 752 KB, 1920x1200, 1288806600170.jpg [View same] [iqdb] [saucenao] [google]
16085923 No.16085923 [Reply] [Original]

Previous thread: >>16056951

>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?
sites.google.com/site/scienceandmathguide
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:
>attach an image (animal images are ideal, you can grab them from >>>/an/. Alternatively use anime from safebooru.donmai.us)
>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

>> No.16085953

I have a data set where the means of the replicates of each variable are plotted on a bar graph.
Should I calculate the sample SD or population SD for the error bars on each bar?

>> No.16085973
File: 915 KB, 362x360, 1710799079241810.gif [View same] [iqdb] [saucenao] [google]
16085973

Does appending the constant infinity function give you the one-point compactification of the space of holomorphic functions on a (simply?) connected region, with respect to the topology of compact convergence using the spherical metric?
Please help me I'm crying auuuuuu

>> No.16085978

This reminds me of this song:
https://www.youtube.com/watch?v=_ccoZhuNlls

>> No.16086084

Following up from >>16060345

I have tried learning the mnemonics that a handful of Anons suggested and showed to me. I am still struggling to understand. I repeatedly get questions wrong during class and on my homework. I literally cannot articulate what I do not know that I do not know. Memorization has not been working, because like I predicted, something, specific to trigonometry, is compromising this ability and my memory does not seem to have been significantly impaired in any other area of my life.

Since my last post, I have tried:
>Creating flash cards of each of the trigonometric functions
>Several hundred problems' worth of trivial trigonometric function problems (i.e., given Sinθ = 3/2, find [all other trig functions])
>Consulting two professors and a half-dozen tutors on all of the above
>Borrowing 45mg of Adderall from a family member for studying (I will not be doing this again, regardless of the dose)

To seemingly no avail.

I want to learn this subject. I believe in its value, and I understand that it is an essential branch of mathematics, but I am at a complete loss as to how I can go about identifying my misunderstandings and shortcomings. I am truly beginning to believe that I have a legitimate learning disorder of this subject, artificially induced or otherwise. I hope maybe one of you might be able to intuit something.

>> No.16086121
File: 2.77 MB, 1280x1822, 1710799079569810.png [View same] [iqdb] [saucenao] [google]
16086121

>>16085973
I'm replying to myself but I think it is the case. Let [math]H(U)[/math] denote the collection of holomorphic functions on our region [math]U[/math]. Not really worth proving fully but you can embed [math]\mathbb{C}[/math] as a closed subset of [math]H(U)[/math] w.r.t. the topology I specified, and you can imagine how the one-point compactification of [math]H(U)[/math] restricted to this embedding would look a lot like [math]\hat{\mathbb{C}}[/math]. Pointwise projections from the compactification should force our one-point to take the value of infinity on all of [math]U[/math]... or something...
For those of you not in the know, when I say the topology of compact convergence I mean the one where a sequence of functions converges to whatever when it converges uniformly (w.r.t. the metric of whatever space these functions are mapping into) on all compact subsets of the region you're working on. Also generated by sets of the form [math]B(f,K,\varepsilon ):=\{ g:X\to Y \, | \, \sup_{x\in K} d_Y (f(x),g(x))<\varepsilon \} [/math] over all functions [math]f:X\to Y[/math], compact [math]K[/math], and all [math]\varepsilon >0[/math].
...But whatever, this is turbo-autism. Riddle me this /sqt/: should I bother attending my diffy geo class in the morning?



File: 783 KB, 844x1306, 03-18-18-47-51.png [View same] [iqdb] [saucenao] [google]
16085843 No.16085843 [Reply] [Original]

https://www.popsci.com/environment/bald-eagle-eggs-wont-hatch/
Its too cold in southern California for bird eggs to hatch this year

10 replies omitted. Click Reply to view.
>> No.16086058

>>16085843
>Is this global warming?
Do not know, do not care. But nice pic.

Propaganda is now climate change btw..
(braindead wording for braindead people)

>> No.16086072

>>16086047
>hot weather - yep thats global warming
>cold weather - yep thats global warming
>average weather - yep thats global warming
>windy - yep thats global warming
>flooding - yep thats global warming
>drought - yep thats global warming

>env science focus in college
did you choose that because you can't do math?

>> No.16086075

>>16086072
The global temperature is going up, weather doesn't actually matter.

>> No.16086087
File: 150 KB, 980x1024, IMG_6874.jpg [View same] [iqdb] [saucenao] [google]
16086087

those eagles are fucked, you capitalist pigs!
https://www.bitchute.com/video/8AHkAJrpAxd4/

>> No.16086095

>>16085939
>it's cold in America
>not really
>YOU ARE KILLING AMERICA



File: 300 KB, 775x849, 63626 - SoyBooru.png [View same] [iqdb] [saucenao] [google]
16085822 No.16085822 [Reply] [Original]

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(

>> No.16085829
File: 25 KB, 721x789, 19812 - SoyBooru.png [View same] [iqdb] [saucenao] [google]
16085829

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..

>> No.16085833

>>16085829
Uhhh I meant a surjection

>> No.16085899

>Numbers that are +1 or -1 an even number have a chance of being prime.
Holy shit



File: 15 KB, 241x284, WEINSTEIN.jpg [View same] [iqdb] [saucenao] [google]
16085779 No.16085779 [Reply] [Original]

https://www.youtube.com/watch?v=p_swB_KS8Hw&t=2583s

Can't he talk to someone of his own caliber? Everything is pretty watered down but either way, he is my science daddy.

>> No.16085802

>>16085779
4 hours of jewish cope and obfucsation? No thank you. No matter how much bs he talks, he will not win the nobel he wants. His "theory of everything" is as fake as him

>> No.16085804

>jewish shills shilling jewish shills



File: 101 KB, 638x840, 1706371849992291.jpg [View same] [iqdb] [saucenao] [google]
16085743 No.16085743 [Reply] [Original]

Can I turn myself into an immortal cyborg? Has science advanced far enough?

>> No.16085745
File: 145 KB, 1080x774, 16466665083638372.jpg [View same] [iqdb] [saucenao] [google]
16085745

>tranny thread

>> No.16085748

>>16085743
you already are a machine with a metal frame.

>> No.16085754
File: 43 KB, 1152x624, you.png [View same] [iqdb] [saucenao] [google]
16085754

>>16085745
You are just constantly thinking about girlcock. Constantly. It never leaves your mind.



File: 424 KB, 1400x974, Isola-dei-Pini-Nuova-Caledonia-2.jpg [View same] [iqdb] [saucenao] [google]
16085731 No.16085731 [Reply] [Original]

Island Of Mine Shall Be In "Inter-National" Water's, As By The Lore It Was Created By A "Joker-Tier" Schyzophrenic Entepreneur From Land-Locked Country That Browsed A Prolific Website 4chan.org He Or Rather It As A Enigmatic Entity Bestowed The Infamous Project "The Line" By This Flying Castle Tier Idea Turned Into A Reality Before He Commenced It He Visited 10 Psychiatrist In His Life Trough Young Age That Estimated His IQ To Be Around 148,8 And They Think He Was Trying To Make It Average But He Didn't Make It Because Of OCD And His Internal Monologue Win Argument Against The Voice's In His Head In Foreign Language, Currently In Hand's Of 2 "Literally Me" Fellow Lad Who Decided To Lure Investor's Into Paying For The Hauling Of Dirt / Sand / Rocks / Pebbles / And Demolished Building Scrap As The Main Foundation For The Island By Biggest Ship's In The So Called "Game" ! Each Investor Got Their Promised Piece Of Land And It Became "Atlantis" In Real Life Also Paying Rent Is Prohibited "You" Only Pay For Energy Bill's To Avoid Exploitation Of Less Fortunate Which Is Low Because It Was Perfect Place For Fusion Reactor In Middle Of No And Where In-Deed It Is The Home Of The 8,8% Percent Island Will Get Bigger If People Get Richer And Buy A Piece Of Sea To Be Turned Into A Rent Free Land The Island Have Pine Forest In Middle With Many Luxury Cabin's And Palm Trees At The Beaches !

>> No.16085739
File: 254 KB, 900x806, 1706644484439196.png [View same] [iqdb] [saucenao] [google]
16085739

>>16085731



File: 323 KB, 2544x2788, math.png [View same] [iqdb] [saucenao] [google]
16085729 No.16085729 [Reply] [Original]

Sup Math Nerds

>> No.16085732

>>16085729
Sup. Ever heard of the number 4? I've used it a few times.

>> No.16085744

>>16085729
>>>/x/

>> No.16085820

>>16085732
>>16085744
4 is nice

>> No.16085888

>>16085732
4 is a chump.
"What is 2 plus 2?", that's chump talk.
7, bitches. 7 is a fucking number.

>> No.16086038

>>16085729
>369
GIT LOW
GIT LOW
GIT LOW
GIT LOW



File: 9 KB, 336x315, 1-db0LuwdYFFVEqHh0coMbsA.jpg [View same] [iqdb] [saucenao] [google]
16085719 No.16085719 [Reply] [Original]

What is the point of studying E&M if literally all of it is described with these 4 equations? All you need to do is unwrap how to apply them and the physical interpretations of them, all of which are covered in undergrad E+M classes, and you're good to go.

2 replies omitted. Click Reply to view.
>> No.16085746

>>16085742
fuck no.

nature is complicated. knowing a model for how it works doesn't imply you understand the consequences of the model in all circumstances.

>> No.16085759

>>16085719
yes, E&M is a math class in disguise. it filters people who can't calculate the field around a square solenoid.

>> No.16085792

>>16085759
there are precious few symmetries that admit analytic solution.
big-penis engineers usually have to resort to numerics.

>> No.16085816

>>16085746
Is there anything that crazy to learn about in E+M past Maxwell's equations though?

>> No.16085840

>>16085816
physics studies models, and models are only valid within certain ranges.
maxwell's equations are an excellent model, but they are not an entirely complete description of what nature is doing, and fail when pushed too far.
for instance, classical EM can't explain the structure of the atom.
if you want an even better model (that is even harder to apply), you go to QED when it becomes important.
the sooner you appreciate that physicists study models of the natural world instead of absolute truth, the sooner you become a good physicist that knows when to apply a particular model and why.



File: 204 KB, 1000x1227, tms.png [View same] [iqdb] [saucenao] [google]
16085689 No.16085689 [Reply] [Original]

I underwent a TMS treatment to treat both depression and anxiety, and I am astonished by the results. I am in a good mood 90% of the time now, my anxiety is gone, and I have finally gotten rid of my chronic fatigue. I have the energy, motivation, and cognitive ability to excel in my studies and in my research work, things which I never had before. I want to take another IQ test, because I swear I am smarter now than I was before as well. I feel like I can finally do all the things I have wanted to in my life now. There have to be more applications of this technology to enhance the human brain, right? What other areas can be targeted for upregulation/downregulation, and for what effects?

>> No.16085749

>>16085689
I was recommended having that but I haven't done it yet. I did have something similar done on my jaw for bruxism with a TENS machine that kind of zaps your head every few seconds. It was really annoying though, I wanted to punch the dentist in the face after just a few minutes of it

>> No.16085781

>>16085749
I'm not sure if those machines are similar. The TMS treatments feel like being flicked in the head a bunch for 20 minutes. Annoying, but you get used to it and don't even pay attention to it after a few sessions. The results have been more than worth it for me. If you think you could benefit from it, and your insurance covers it, I would recommend doing it. It does take nine weeks for the total treatments though, so be ready for that.



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16085665 No.16085665 [Reply] [Original]

I heard some mathematician say that e isn't geometrically defined unlike pi. but if e is the integral of the function e^x that's the same as saying it's the area of a shape two perpendicular sides and a curve of y=e^x between them. how is that not a geometric definition?

7 replies omitted. Click Reply to view.
>> No.16085837

>>16085665
Neither e nor π are "numbers", they are infinite series aka. algorithms.
https://njwildberger.com/

>> No.16085845
File: 4 KB, 505x572, nobrain.png [View same] [iqdb] [saucenao] [google]
16085845

>>16085837
>>16085753
>>16085794

>> No.16085855

>>16085797
You need to do it in a finite amount of time, you dumbass.

>> No.16086045

>>16085665
e has the geometric shape of half of a parabola

>>16085797
You need a pendulum, not a pen and compass, to draw a parabola or exponential.

>> No.16086128

>>16086045
Not a parabola
https://en.m.wikipedia.org/wiki/Catenary



File: 379 KB, 1920x1280, beer-2607172_1920.jpg [View same] [iqdb] [saucenao] [google]
16085630 No.16085630 [Reply] [Original]

A zero calorie version of beer. Is there a chemical which gives a similar feeling to alcohol but is zero calories? Add this to hopped fizzy water and then you've got Beer Zero. Any suggestions?

>> No.16085667

>>16085630
LSD

>> No.16085758

>>16085630
There are 7 calories in 1g of ethanol which I'm pretty sure is in every kind of alcoholic drink. There's some faux-alcohol drinks on the market using other chemicals but they don't seem very popular. Maybe you can't get totally smashed on them or something I'm not sure

>> No.16085864
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16085864

>>16085630
That is fucking stupid. Only fags care about weight and they/them already have budlight piss.

>> No.16085945

>>16085630
yeah it's called benzodiazipine

>> No.16086004
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16086004

Keto folks looking for an alcohol buzz drink R 1,3 Butanediol, which has 80% fewer calories than alcohol. I've never tried it because it's expensive and apparently doesn't taste all that great but if you're concerned mostly about calories, it's probably the best alternative.



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16085546 No.16085546 [Reply] [Original]

Science is nothing more than voodoo religion trying to justify the current regime.

Fuck science. KILL science.

5 replies omitted. Click Reply to view.
>> No.16085724

>>16085575
the state of politics anon.

>> No.16085755

Kill scientists. Behead scientists. Roundhouse kick a scientist into the concrete. Slam dunk a scientist baby into the trashcan. Crucify filthy blacks. Defecate in a scientists food. Launch scientists into the sun. Stir fry scientists in a wok. Toss scientists into active volcanoes. Urinate into a scientists gas tank. Judo throw scientists into a wood chipper. Twist scientists heads off. Report scientists to the IRS. Karate chop scientists in half. Curb stomp pregnant black scientists. Trap scientists in quicksand. Crush scientists in the trash compactor. Liquefy scientists in a vat of acid. Eat scientists. Dissect scientists. Exterminate scientists in the gas chamber. Stomp scientist skulls with steel toed boots. Cremate scientists in the oven. Lobotomize scientists. Mandatory abortions for scientists. Grind scientist fetuses in the garbage disposal. Drown scientists in fried chicken grease. Vaporize scientists with a ray gun. Kick old scientists down the stairs. Feed scientists to alligators. Slice scientists with a katana.

>> No.16085763

>>16085755
Suplex a scientist off a 5 story building directly onto the head of another scientist?

>> No.16085809

>>16085546
>Science is
... not just some random LaTeX document. The lack of context or reference where this even is from makes me wonder if it would sound far less outrageous in the proper context.

>> No.16085871
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16085871

>>16085546
That is academia infested with woke parasites, not science, you imbecile moron.