Documentary · Caltech
Episode 50: Particles And Waves - The Mechanical Universe
caltech · David Goodstein
Caltech's classic telecourse episode on how evidence that light can act like a particle led to quantum mechanics. After an opening on Planck and glowing bodies comes its photoelectric segment, with Einstein, electrons in a metal and the work function, and Millikan's lab: an animated second pass over sections 4 and 5, before the episode moves on to de Broglie, Bohr and Heisenberg.