Viktor von Weizsäcker was uncle to what German physicist and philosopher?
Viktor von Weizsäcker Viktor Freiherr von Weizsäcker (21 April 1886 in Stuttgart – 9 January 1957 in Heidelberg) was a German physician and physiologist. He was the brother of Ernst von Weizsäcker, and uncle to Richard von Weizsäcker and Carl Friedrich von Weizsäcker. (For his family tree, see Weizsäcker.)
Karl Eduard Zetzsche Karl Eduard Zetzsche (March 11, 1830 Altenberg – April 18, 1894 Dresden) was a German mathematician and physicist.