Karl Eduard Zetzsche

Karl Eduard Zetzsche (March 11, 1830, in Altenberg – April 18, 1894, in Dresden) was a German mathematician and physicist.

Biography
He studied in Dresden and Vienna, and in 1856 entered the Austrian telegraph service. In 1858, he became a teacher in the industrial high school at Chemnitz and, in 1876, a professor of telegraphy in the Polytechnic Institute at Dresden. In 1880, he was appointed telegraph engineer in the Imperial Post Office at Berlin. In 1887, he retired from public service.

Works

 * Die Kopiertelegraphen, Typendrucktelegraphen und die Doppeltelegraphie (1865)
 * Die elektrischen Telegraphen (1860)
 * Katechismus der elektrischen Telegraphie (6th ed., 1883)
 * Abriss der Geschichte der elektrischen Telegraphie (1874)
 * Die Entwickelung der antomatischen Telegraphie (1875)
 * Handbuch der elektrischen Telegraphie (together with Frölich, Henneberg, and Kohlfürst) (1877–1895)