From Looking Glass Universe.

Here’s some more info about the live course. The next class starts in January! https://looking-glass-universe.teachable.com/p/quantum-mechanics-fundamentals

Here’s the rest of this series: https://www.youtube.com/playlist?list=PLg-OiIIbfPj1t7zYsf6aj7wrGb9fghFDk

Here’s a great video on Bell basis measurements: https://www.youtube.com/watch?v=yGe0DxORJeE