Definition that contains gustav hertz
- franck United States physicist (born in Germany) who with Gustav Hertz performed an electron scattering experiment that proved the existence of the stationary energy states postulated by Niels Bohr (1882-1964)
- james franck United States physicist (born in Germany) who with Gustav Hertz performed an electron scattering experiment that proved the existence of the stationary energy states postulated by Niels Bohr (1882-1964)