Solvay Conference, 1927 Group photograph of fifth conference taken from "Les Conseils Solvay: et les debuts de la physique moderne", edited by Pierre Marage and Gregoire Wallenborn. Featuring Bohr, Born, W L Bragg, L Brillouin, Compton, Curie, De Broglie, Debye, De Donder, Dirac, Ehrenfest, Einstein, Fowler, Guye, Heisenberg, Henriot, Herzen, Knudsen, Kramers, Langevin, Langmuir, Lorentz, Pauli, Piccard, Planck, Richardson, Schrodinger, Verschaffelt, Wilson 2002