Franz_S._Exner--Wilhelm_Roentgen

Franz Serafin Exner (24 March 1849 – 15 October 1926) was an Austrian physicist and professor at the University of Vienna. He is known for pioneering physical chemistry education in Austria. The early introduction to university curricula of subjects such as radioactivity, spectroscopy, electrochemistry electricity in the atmosphere, and color theory in Austria are often credited to him.He advised many notable students including Stefan Meyer, Erwin Schrödinger, and Marian Smoluchowski.