1882 - 1887 physics and mathematics course at the universities of
Göttingen, Freiburg and Berlin
1887, PhD supervised by W. Voigt at the University of Göttingen entitled
"Über die Reflexion und Brechung des Lichtes an der Grenze absorbierender
Krystalle" (“On the reflection and refraction of light at the boundary of
absorbing crystals”)
1887 - 1894 assistant and Privatdozent at the Institute of Physics at the
University of Göttingen
1889 habilitation on metal-optical investigations
1894 "Physik des Äthers"
1894 marriage to Emilie Regelsberger
1894 extraordinary professor at the University of Leipzig
1900 professor and director of the Institute of Physics at the University
of Gießen
1900 derivation of Wiedemann´s law by means of the electron theory of
metals
1900 editor of "Analen der Physik"
1900 "Lehrbuch der Optik" („Textbook of Optics“)
1905 professor and director of the Institute of Physics at the Friedrich
Wilhelms University of Berlin
1905 elected as an ordinary member of the Prussian Academy of Sciences
