I still find it faintly incredible that no group of scientists has gotten together and just made a damn set of free textbooks to cover the whole standard curriculum of their field. For uni physics, you'd need, roughly speaking and allowing for bits of overlap:

1. Classical mechanics

2. Single-variable calculus

3. Electromagnetism

4. Multivariable and vector calculus

5. Statistical physics

6. Quantum physics

7. Special relativity

8. Data analysis (a text most likely used as reference in a lab course)

9. Differential equations

10. Linear algebra

Education reform went haring off into MOOCs without really contemplating the possibility of making better resources for more traditional in-person teaching.

... Some open textbooks have been written, but to my knowledge, nobody has organized a "depth-first" drive. For example, the OpenStax products look fine, but they really only cover about 1 to 1.5 academic years of a physics program:

https://openstax.org/subjects/science

https://openstax.org/subjects/math

What I'd like to see is more comprehensive (and with a lighter-weight website, for heaven's sake).

being a math student of the European tradition is a lot like being a wizard or something.

You get told that nothing is really what you thought it was, and you have to perform menial labor and pass gruelling tests for years as an acolyte, memorizing and internalizing thousands of years' worth of esoteric knowledge. When you finally pass the final test(defending a dissertation), you're a full wizard.

ok I think I have maybe reached a new low of nerdism, but,

John Gustafson's 'posits' floating point format is a thing of beauty and I am in awe

the bits! they align!

also, exponents of exponents of exponents

when your numbers aren't quite numbery enough? MOAR EXPONENTS is definitely what you need.

https://posithub.org/docs/Posits4.pdf

via https://www.nextplatform.com/2019/07/08/new-approach-could-sink-floating-point-computation/

via @enkiv2

I threaded some math madness.

https://hackers.town/@feonixrift/102376230391883326

There's a lot more where that came from. The inside of my head looks like this.

Turkey has charged over 700 academics with terrorism for signing a peace petition: https://www.insidehighered.com/news/2019/07/01/about-700-academics-have-been-criminally-charged-turkey-their-signatures-petition

Among the most severely penalized among them is Tuna Altınel, a mathematician in France who was arrested visiting family in Turkey, and who has now been imprisoned for over 50 days. For more see http://math.univ-lyon1.fr/SoutienTunaAltinel/?lang=en (via https://cameroncounts.wordpress.com/2019/05/31/tuna-altnel/)

What happens in your head when you do 27+48?

I do

7 + 8 = 15; 20 + 40 + 10 = 70; 70 + 5 = 75

[If you want to do this yourself please copy the question and make your own post] #27plus48

What happens in your head when you do 27+48?

I do

10-8=2, 7-2=5, 22+48=60+10=70, 70+5=75

[If you want to do this yourself please copy the question and make your own post] #27plus48

Heathen cyborg mathematician. No gluten. (Mathematician aspect)

Assume the hypotenuse :boardwrite:,

not the contusion :headdesk:.

Joined May 2018