Hans Schlegel and Reinhard Furrer, are German, of which mutual occupations?
Reinhard Furrer Prof. Dr. Reinhard Alfred Furrer (25 November 1940 – 9 September 1995) was a German physicist and astronaut.
Hans Kopfermann Hans Kopfermann (26 April 1895, in Breckenheim near Wiesbaden – 28 January 1963, in Heidelberg) was a German atomic and nuclear physicist. He devoted his entire career to spectroscopic investigations, and he did pioneering work in measuring nuclear spin. During World War II, he worked on the German nuclear energy project, also known as the Uranium Club.