Christian Wiener

Ludwig Christian Wiener was a German mathematician, born in Darmstadt on 7 December 1826 and died in Karlsruhe on 31 July 1896, who specialised in descriptive geometry and also worked as a physicist and a philosopher. The son of a judge, he studied architecture and engineering at Giessen, and after the state examination of 1848 he became a teacher at the Hohere Gewerbeschule in Darmstadt, the institution that is today the Technische Universitat Darmstadt. In 1863 he became the first person to identify qualitatively the internal molecular cause of Brownian motion. His son Hermann Wiener also became a mathematician.