Born 12th March 1926 in Baden, AG, Switzerland, to Joseph and Emmy Schumacher-Schnebli.
Married 12th January 1957 in Zürich to Dorothea Christ; Children: Maia, Sabine, Peter, Cornelia.
Grandchildren (2008): Eva, Katia, Annik, David, Fabian, Nora
Schools in Baden and Zürich (Gymnasium); Maturität Type B, July 1945, Zürich
1945 University of Zürich: Chemistry, Physics,
Animal Biology, Mineralogy and Crystallography, Mathematics
1949-51 Thesis work with K. Clusius in Physical Chemistry
1951 Ph.D. in Physical Chemistry (Isotope Separation
of polynary mixtures; isolation of pure 36
Ar and enrichment
of the rare middle isotope 38
Ar from 0.06 to 89.5%; theory for
the separation of polynary mixtures by thermal diffusion)
1951-1953 Research Assistant of K. Clusius, Zürich
(first mass spectrometer, homebuilt in Switzerland. Used for isotopic analyses).