Johannes Stark was a German physicist who received the Nobel Prize in Physics in 1919 for his discovery of the Stark effect. The Nobel Prize in Physics 1919, announced November 13, 1919. Johannes Stark, “for his discovery of the Doppler effect in canal rays and the splitting of spectral lines in electric fields”. Johannes Stark: born 1874, Schickenhof, Germany. Wiki link Data: the Nobel Foundation (CC0).