Main entry: Hertz, Gustav Hertz, Gustav Ludwig Hertz
Definition: German physicist who with James Franck proved the existence of the stationary energy states postulated by Bohr (1887-1975)
Main entry: Heinrich Hertz, Heinrich Rudolph Hertz, Hertz
Definition: German physicist who was the first to produce electromagnetic waves artificially (1857-1894)
Main entry: Hz, hertz, cycle, cycle per second, cycles/second, cps
Definition: the unit of frequency; one hertz has a periodic interval of one second