/sci/ - Science & Math

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Anonymous Thu 26 Aug 16:43:35 2021 No.13564968 View Reply Original Report

Quoted By:

Who was deep-blue.
And how did the live?

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Vectors

Anonymous Thu 26 Aug 20:07:41 2021 No.13565532 View Reply Original Report

Quoted By: >>13566635 >>13566648 >>13566751

I need to learn about vectors, are there any good tutorial out there that go straight to the point and explain them to undergraduate beginners?

ps: How much math knowledge is required to understand physics (the basics)?

With much respect and love, Eve.

2 posts omitted

Anonymous

Anonymous Thu 26 Aug 2021 22:13:46 No.13565938 Report

Quoted By:

what's so hard to understand about vectors OP? They're just an array of numbers

Anonymous

Anonymous Fri 27 Aug 2021 01:49:38 No.13566589 Report

Quoted By:

How the fuck do you not learn vectors in uni at least twice per semester for the first 2 years?
I lost count of the number of times professors have retaught vectors like they were brand fucking new.

Go to fucking khanacademy or something. Or just youtube. You can't not find a good source on vectors.

Anonymous

Anonymous Fri 27 Aug 2021 02:02:30 No.13566635 Report

Quoted By:

>>13565532
each one of us is a genetic code, you are here to transform the rest of the genetic codes

Anonymous

Anonymous Fri 27 Aug 2021 02:05:28 No.13566648 Report

Quoted By:

>>13565532
>ps: How much math knowledge is required to understand physics (the basics)?

A lot. To do basic computations in your intro level courses you should take: calculus 1-3, elementary linear algebra, elementary ODEs. From there if you want to learn general relativity and QM you need to go through spivak's differential geometry books, an advanced linear algebra text (Axler is good for physicists), then finally a functional analysis text (Kreyszig is good for physicists).

Anonymous

Anonymous Fri 27 Aug 2021 02:35:27 No.13566751 Report

Quoted By:

>>13565532
This video claims to explain tensors,
but instead mostly speaks of vector basics.
https://www.youtube.com/watch?v=f5liqUk0ZTw

for tensors, this is a good piece:
https://www.youtube.com/watch?v=bpG3gqDM80w

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Anonymous Thu 26 Aug 14:33:20 2021 No.13564433 View Reply Original Report

Quoted By:

Where does gut flora come from?

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Anonymous

Anonymous Fri 27 Aug 2021 01:48:15 No.13566582 Report

Quoted By: >>13566602

>>13566575
>lots of eukaryotes have cell walls
so why would one shed it and fuse with others to become complex life?

Anonymous

Anonymous Fri 27 Aug 2021 01:54:05 No.13566602 Report

Quoted By: >>13566609

>>13566582
prokaryotes are complex life
there are archaea without cell walls and there are bacteria without cells walls, so the first eukaryotes probably didn't have them either
why are you so fixated on cell walls?

Anonymous

Anonymous Fri 27 Aug 2021 01:57:05 No.13566609 Report

Quoted By: >>13566724

>>13566602
when eukaryotes shed their cell walls and fused with others they became worms or the first animals...scientists have no idea why...they also don't even know if life originated on Earth or came from an asteroid...care to give your theories? atheism is based on faith

Anonymous

Anonymous Fri 27 Aug 2021 01:59:10 No.13566617 Report

Quoted By:

>>13566574
Not from yogurt. Fecal transplants are interesting if you can find a good donor. The problem is there's likely strains of bacteria that are going to be lost forever because of widespread antibiotic use.

Anonymous

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Anonymous Fri 27 Aug 2021 02:28:32 No.13566724 Report

Quoted By:

>>13566609
I was beginning to think you were a christcuck
There is no point trying to reason with you since you didn't use reason to arrive at your current position
There is no point trying to argue with you either
You have to go back

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Teeth whitening drawbacks?

Anonymous Fri 27 Aug 01:45:36 2021 No.13566576 View Reply Original Report

Quoted By:

>PVP, PEG-8, Water, Hydrogen Peroxide, Acrylates Copolymer, Sodium Hydroxide, Sodium Saccharin

These are the ingredients of pic-related. What is the devil's advocate argument AGAINST these chemicals, are there any drawbacks or unspoken of health disadvantages to them? I googled PVP and apparently it can cause respiratory issues?

2 posts and 1 image omitted

Anonymous

Anonymous Fri 27 Aug 2021 01:55:15 No.13566606 Report

Quoted By: >>13566612

>>13566596
Damn, it's practically diluted bleach? So bleach? Lol wtf. Any actual good alternatives bro

Anonymous

Anonymous Fri 27 Aug 2021 01:57:07 No.13566610 Report

Quoted By: >>13566631

>>13566604
I'm not much of a chembro, if they're using said ingredient, surely mixing it with others doesn't mitigate it's toxicity? Not to mention there's literally hydrogen peroxide ingrained into your teeth as the first poster mentioned basically I didn't know hydrogen peroxide was used as bleach (or at least forgot so hehe)

Anonymous

Anonymous Fri 27 Aug 2021 01:57:32 No.13566612 Report

Quoted By:

>>13566606
There isn't any bleach in this product. Hydrogen peroxide is a bleaching agent, it is not synonymous with sodium hypochlorite which is also a bleaching agent but not anywhere near the same thing.

The whitening agent in many of these toothpaste is peroxide. Before things like Listerine, people would use household topical peroxide as a mouth wash.

Anonymous

Anonymous Fri 27 Aug 2021 02:01:30 No.13566631 Report

Quoted By: >>13566667

>>13566610
>I'm not much of a chembro, if they're using said ingredient, surely mixing it with others doesn't mitigate it's toxicity?
Exposure is not absolute. Concentration matters a lot. Comparing a pure substance to a dilute solution in a household product are incredibly different when you wanna talk about toxicity.

Toxic effects happen when you are exposed to an excessive and high concentration of a chemical. All chemicals of course have different levels of toxicity so exceeding exposure limits varies drastically between chemicals and applications.

The toxicity of PVP in that oral health product is incredibly low. It's properties have been evaluated at this level and application and they've determined that this is safe to use in this way.

Anonymous

Anonymous Fri 27 Aug 2021 02:10:10 No.13566667 Report

Quoted By:

>>13566631
https://askthedentist.com/crest-whitestrips/

Apparently using it once every 5 years is the to-go method. I mean, people swim in chlorinated pools right? Can't imagine this is that bad

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Anonymous Tue 24 Aug 14:45:43 2021 No.13555210 View Reply Original Report

Quoted By:

Alright class, TIME TO LEARN ABOUT VECTORS!

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Anonymous

Anonymous Thu 26 Aug 2021 09:30:05 No.13563424 Report

Quoted By:

>>13555238
Expand
$(ax^2 + bx + c)(dx^2 + ex + f)$
and compare coefficients to obtain a system of equations

Anonymous

Anonymous Thu 26 Aug 2021 09:46:33 No.13563510 Report

Quoted By: >>13563600

>>13556941
{5}

Anonymous

Anonymous Thu 26 Aug 2021 10:11:52 No.13563600 Report

Quoted By:

>>13563510
element of the vector space of singleton subsets of R with addition and scalar multiplication defined by

a{x} + b{y} = {ax+by}

Anonymous

Anonymous Fri 27 Aug 2021 02:00:35 No.13566624 Report

Quoted By:

>>13559243
Very obviously a vector space.

Anonymous

Anonymous Fri 27 Aug 2021 02:02:17 No.13566633 Report

Quoted By:

>>13555234
For me, it's a vector.

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Anonymous Fri 27 Aug 01:08:19 2021 No.13566469 View Reply Original Report

Quoted By: >>13566480 >>13566584

is this scientifically accurate?

Anonymous

Anonymous Fri 27 Aug 2021 01:12:57 No.13566480 Report

Quoted By: >>13566495 >>13566623

>>13566469
Tucker Carlson will spew all the anti vax talking points all day but when it comes down to it, fox news made him get vaccinated and wear a mask to keep working there

Anonymous

Anonymous Fri 27 Aug 2021 01:16:58 No.13566495 Report

Quoted By:

>>13566480
This, tucker is fake as fuck. He talks like he’s anti establishment but he tried to work for the cia in the past and his dad had all kinds of glowy connections

Anonymous

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Anonymous Fri 27 Aug 2021 01:48:43 No.13566584 Report

Quoted By:

>>13566469
yes, trannies are demonic just like their kike handlers that evoke demonic spirits to empower their golem.

Anonymous

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Anonymous Fri 27 Aug 2021 01:50:27 No.13566591 Report

Quoted By:

Maybe.

Anonymous

Anonymous Fri 27 Aug 2021 02:00:24 No.13566623 Report

Quoted By:

>>13566480
anything we don't understand is satanic baka

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What are the effects of 4chan on your brain health??

Anonymous Wed 25 Aug 10:03:05 2021 No.13559276 View Reply Last 50 Original Report

Quoted By: >>13564437

Surely the infinete flow of images and shocking content can't be too good for our moneky brain? How does it compare to more conservative forms of entertainment, like watching a TV or reading an article?

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Anonymous

Anonymous Thu 26 Aug 2021 11:17:05 No.13563783 Report

Quoted By:

>>13563723
>we wouldn't see a constant exodus of those idiots to every other board.
I didn't know they were so thin-skinned that they would let libtards dictate where they go.

Anonymous

Anonymous Thu 26 Aug 2021 14:34:26 No.13564437 Report

Quoted By:

>>13559276
my monkey brain tends to get triggered. 4chan is based on psychology.
does really well at triggering and/or baiting with the topics, pictures, etc..
you also have the 'culture' and memes acronyms slang etc...

it's all very stimulating

Anonymous

Anonymous Thu 26 Aug 2021 21:28:43 No.13565789 Report

Quoted By:

>>13559287
There's absolutely peer pressure on 4chan, there's
>Verbal abuse
>Saging threads
>Ignoring threads
>Derailing threads (this died off a lot after captchas but you'll still see it in tripfriend threads)
>Jannies/Mods

You will only get attention, perticularly positive attention for making certain types of posts. 4chan may be less extreme in its personality warping than say leddit but without social enforcement of norms you don't have a community.

Anonymous

Anonymous Fri 27 Aug 2021 01:01:47 No.13566450 Report

Quoted By:

>>13559287
of course one of the last platforms for free speech unhindered by social points would attract dialogue that's shunned elsewhere, idiot

Anonymous

Anonymous Fri 27 Aug 2021 01:41:05 No.13566559 Report

Quoted By:

>>13559287

when there is no careful censorship, certain kinds of discourses are possible and others don't survive scrutiny

nowadays censorship is extremely pervasive ad follows a very concrete mainstream narrative that doesn't survive here, that's why you are noticing a big difference on what is normal and what isn't, and what people can express that they can't usually express is especially prevalent

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Anonymous Wed 25 Aug 12:42:04 2021 No.13559550 View Reply Original Report

Quoted By: >>13560753

Saddest book I've ever read in my life. Makes a VERY strong case that we would have flying cars and tons of other amazing tech if the Green movement had not resisted nuclear energy so strongly. Don't read this if you don't want to be enraged at what you've lost.

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Anonymous

Anonymous Wed 25 Aug 2021 18:52:02 No.13560753 Report

Quoted By:

>>13559550
there's a tesla flying between earth and mars, it's plenty enough

Anonymous

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Anonymous Thu 26 Aug 2021 04:36:28 No.13562638 Report

Quoted By:

Anonymous

Anonymous Fri 27 Aug 2021 01:02:29 No.13566454 Report

Quoted By: >>13566534

https://is2.4chan.org/gif/1629973268234.webm

Anonymous

Anonymous Fri 27 Aug 2021 01:31:46 No.13566534 Report

Quoted By:

>>13566454
>
https://i.4cdn.org/gif/1630027334857.webm

Anonymous

Anonymous Fri 27 Aug 2021 01:35:38 No.13566545 Report

Quoted By:

More like the N movement amirite?

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Tesla BOT: BUSTED!

Anonymous Wed 25 Aug 15:38:20 2021 No.13560025 View Reply Original Report

Quoted By: >>13565953 >>13566529

ITS OUT!
Thunderchad is at it again!
Elons Tesla Bot BTFO!

https://www.youtube.com/watch?v=rmkFrv80b7Y

how can Elono*ds recover from this (scientifically speaking)?
is this scientifically viable?

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Anonymous

Anonymous Thu 26 Aug 2021 22:16:11 No.13565953 Report

Quoted By:

>>13560025
I'M GOOONNNNNNA............. I'M GOONNNNNNNAA
DEBOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONNNNNNNNNNNNKKKK
AHHHHHHHHHHHHHHHHHHHH

Anonymous

Anonymous Fri 27 Aug 2021 01:06:22 No.13566464 Report

Quoted By:

>>13560144
>his YouTube channel primarily dedicated to whining about Elon Musk.
Not really. See his channel for yourself.
>Phil's new Maserati isn't going to pay for itself.
If it was about that, he would have praised Elon, that's the most popular and profitable thing to do.

Anonymous

Anonymous Fri 27 Aug 2021 01:26:44 No.13566522 Report

Quoted By:

B U S T E D
U E
S T
T S
E U
D E T S U B

Anonymous

Anonymous Fri 27 Aug 2021 01:30:03 No.13566529 Report

Quoted By: >>13566539

>>13560025
I don't understand how anyone can watch his shallow repetitive drivel for longer than a couple minutes

Anonymous

Anonymous Fri 27 Aug 2021 01:34:05 No.13566539 Report

Quoted By:

>>13566529
I swear his ADHD gets worse by the year.

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Anonymous Wed 25 Aug 00:32:38 2021 No.13557685 View Reply Original Report

Quoted By: >>13565438

Why are fractals so based?

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Anonymous

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Anonymous Thu 26 Aug 2021 19:41:08 No.13565438 Report

Quoted By:

>>13557685
Because they're still relatively mysterious.

Anonymous

Anonymous Fri 27 Aug 2021 01:06:56 No.13566466 Report

Quoted By:

>>13557967
is coffee good for you?

Anonymous

Anonymous Fri 27 Aug 2021 01:10:01 No.13566473 Report

Quoted By: >>13566485

>>13557703
You’ve just outed yourself as a pseud. Fractals have nothing to do with black holes retard. You’re as scientifically illiterate as the pop sci fags you hate.

Anonymous

Anonymous Fri 27 Aug 2021 01:13:36 No.13566485 Report

Quoted By:

>>13566473
You’ve just outed yourself as a pseud. Replying to bots is a silly thing to do.

Anonymous

Anonymous Fri 27 Aug 2021 01:16:06 No.13566491 Report

Quoted By:

anudda shoah

Capcode	All Only User Posts Only Moderator Posts Only Admin Posts Only Developer Posts
Show Posts	All Only With Images Only Without Images
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Vectors

Teeth whitening drawbacks?

What are the effects of 4chan on your brain health??

Tesla BOT: BUSTED!