Josef Geitler von Armingen

Josef Karl Franz Otto Geitler, Ritter von Armingen (14 September 1870 – 20 June 1923) was an Austrian physicist born in Smíchov, today a district in Prague.

In 1906 he succeeded Alois Handl (1837-1915) as chair of experimental physics at the University of Czernowitz.

In 1919, when Czernowitz became a Romanian university, Geitler relocated to Graz, where he taught classes at the Technische Universität Graz.

Among his scientific research were studies that explained differences between x-rays and cathode rays.

[1] His best known publication was Elektromagnetische Schwingungen und Wellen, ("Electromagnetic oscillations and waves") (1905).