Solvay 1927: A Film Clip

If you want to see extremely rare footage of some of the participants leaving the fifth Solvay conference held in Brussels in October 1927, here it is:

Shot by the American Irving Langmuir, its just under 3 minutes long and shows Einstein, Bohr, Schrodinger, Heisenberg, Pauli, Born, de Broglie, Dirac and others after a day discussing quantum mechanics. The commentary is provided by Nancy Thorndike Greenspan, the author of an excellent biography of Max Born called The End of the Certain World.