/sci/ - Science & Math

Straight A students of /sci/, what are your studying habits?

University Applications
>high school transcript GPA 3.8 + = Accepted
>no other information required

>be me
>be collage biology professor
>public collage,nothing too fancy
>test day
>give kids test about animal cell and cell biology
>some protein names,organelle functions etc
>reach mitochondria
>every
>single
>fucking
>student
>"the mitochondria is the powerhouse of the cell"
>mfw
should i just quit and become a lab cuck since this job isnt paying me that good

How do we know what chemicals look like?

Normally the rate of cell division and cell death (apoptosis) is equal. This keeps organs and organisms at the same size.
But once the apoptosic program is activated, like the entry into a new stage of the cell cycle, is usually triggered in an all or none fashion. The proteolytic cascade is not only destructive and self amplifying but also irreversible. Once a cell reaches a critical point along the path to destruction, it cannot turn back.
Since Europeans cannot turn back from their path to the apoptosis of their race, it means there's nothing we can do right?

Why does coffee make me shit /sci/? How come other caffeine drinks don't do it?

Hey, I need Help. Where is my Mistake?
Result is ALMOST equal, but still wrong...
1st semester Math Student
Set Theory Logic

What's /sci/'s handwriting like?

How do I learn basic maths and physics faster? It feels like its going wayyy too slow I wanna get to the complicated shit already

Due to the nature of the education system in my country, I haven't had any STEM classed since 9th grade. I'm 21 now and can barely remember anything beyond a 5th grade level. I'm tired of feeling like a retard, where do I start on how to improve myself? I don't think I'm necessarily dumb, I'm at the top of my classes at university in my History degree (which isn't a high bar to set, I know), I just don't like being scientifically illiterate.

In pic related my professor told us that if you have a classical system with hamiltonian [math]H(p_i,q_i)[/math] then the relative quantum system is given if the Schrödinger eqn is satisfied and also the observables become self adjoint operators. Is this notation implying that there exist a map, matching every classical observable to its corresponding operator? (would that be a map from [math]\left( C^{\infty}(M),+, * \right) \rightarrow A[/math] , where A is an algebra of operators)

OK let's see this problem:
I need to sell 100 pieces of a land to many different buyers with a linearly increasing price so that the total must be 1000 bitcoin
Considering the total as the area of a triangle and the number of the pieces of land as the base, i used this formula to find the height of the triangle aka the final, highest price
(b*h)/2=A aka (PIECES*HIGHESTPRICE)/2=TOTAL
which gives h=20btc
Now: How do i find all the intermediate prices for every piece of land? What's the best formula to do it?

Why do we say R/Z (not the circle, but the space you get by identifying the integers) is homeomorphic to a countable infinity of circle welded at one point when it's wrong? If you try to realize it in R^3 by taking, for each rational point on the unit circle of the plane x=y=0 a circle in the plane that contains z=0 and this point (so you get a countable infinity of circles that intersect only at 0) with the subspace topology, you don't get at all something homeomorphic to R/Z. The only way to make it work is in infinite dimension. Why do people say this?

Post based and redpilled 80s prog

I got sulfuric acid on my hands, a lot. I was using this drain cleaner and I know that it was obviosly a high concentration of sulfuric acid. It spilled all over my palm and dripped a ton on the back of my hand. The palm I washed off near immediately, the back of the hand was on for s little bit of time, maybe 30 seconds to a minute. My hands feel dehydrated but I want to know what’s the worse that will happen and how bad it looks.

>prof starts telling a joke

Master mathematician here. I'm giving you advice on how to be good at mathematics.

1. You might have this emotion inside you that mathematics is BIG subject. It's not. Stop thinking it as BIG. Rather think it as LONG. It's very long, but extremely flat and overwhelming majority of branches your brain might make wont lead you anywhere. It's not like roots of a tree. It's like long piece of rope and occasionally some of the rope strands fray from the main body. There is usually one type of freedom in math and it is FORWARD or BACKWARD.

2. You might think that solving mathematical equations is hard. No. You can solve a problem if you have done similar problems before. That's how mathematics works. Your job is to progress from simpler problems forward. Like building a pyramid. You can solve a problem ABC if you have solved the problems A B and C before. If you cant solve ABC, intensively focus and search for problems like A, B, and C first.

3. You might think that thinking gets you far in math. Thinking doesnt progress you much. Mostly what you need to do is move the subjects into your working memory, fill your working memory with mathematics thing, then forget all about it and go to sleep or eat or whatever. Fill your working memory. Then stop. Then return. Do this every week. You have to do it a lot, maybe 30 hours a week. That is a lot of mathematics.

4. You will get good in mathematics if you ALSO seek for motivation to do it. Seek to get rewarded. Use 20% of your time to seek rewards you can obtain with mathematics.

5. Best way to learn is friends and competing against them.

So, I happened upon this guy by pure chance today. Apparently he developed a 'new' geometry that's supposed to revolutionise how the subject taught. He calls his formulation "rational geometry," and basically what it does is replace distance and angle with "quadrance" and "spread." I've watched the first of his lectures on youtube, but I'm not yet convinced this rational geometry is any better. What does /sci/ think? Is this man a meme?

Comfy viewing:
https://en.wikipedia.org/wiki/Rational_trigonometry
http://web.maths.unsw.edu.au/~norman/papers/RationalTrig.pdf
https://www.youtube.com/watch?v=dVk3CpjHR4Y

How far can we go with modern computing? Is there anything beyond digital computing? Could we ever build machines that get close to Landauer's principle?

So how about that noise coming from the Antarctic ice shelf?
https://www.forbes.com/sites/trevornace/2018/10/17/the-antarctic-ice-shelf-is-emitting-a-very-strange-noise-as-it-melts-scientists-find/#5a1d4e3e59f2
https://www.youtube.com/watch?v=w56RxaX9THY