From Looking Glass Universe.

This is part of quantum mechanics course I’m making, that has no maths preqs: https://www.youtube.com/playlist?list=PLg-OiIIbfPj1t7zYsf6aj7wrGb9fghFDk

If you’re interested in the live version of the course, here’s the info on it: https://looking-glass-universe.teachable.com/p/quantum-mechanics-fundamentals