Back row (standing, left to right) A Piccard, E Henriot, P ehrenfest, E Herzen, Th De Donder, E Schroendinger, E Verschaffelt, W Pauli, W Heisenberg, R H Fowler
Middle row (sitting, left to right) P Debye, M Knudesen, W L Bragg, H A Kramers, P A M Dirac, A H Compton, L V De Broglie, M Born, N Bohr
Front row (sitting, left to right) I Langmeir, M Planck, M Curie, H A Lorentz, A Einstein, P Langevin, Ch E Guye, C T R Wilson, O W Richardson
17 out of 29 won a Nobel prize !!