Jorge Diaz on Heisenberg's Über quantentheoretische Umdeutung kinematischer und mechanischer Beziehungen

This is so different to the story you get from most introductory textbooks. See Angela Collier and Gabriele Carcassi on Physics Textbooks.

Here's his video on the ground state:

 

And here's his video on how Planck produced his black-body radiation curve formula:

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