implement a chapter or two from a popular Physics textbook

[bhpayne]

popular textbooks:

• https://en.wikipedia.org/wiki/Course_of_Theoretical_Physics
• https://en.wikipedia.org/wiki/Classical_Electrodynamics_(book)
• Giffiths E&M
• Fundamentals of Physics II: Electromagnetism, Optics, and Quantum Mechanics Book by Ramamurti Shankar

Implement a chapter. That would gain an audience of grad students

[researcherben]

As a bigger challenge, implement a full undergraduate program

• https://www.diegovera.org/projects