Austrian research chemist Edith Kroupa, 1934. The original caption dated September 18, 1934, reads: "While revolution upset Vienna, Miss Edith Kroupa, research chemist working with a new method of microchemical analysis in the laboratory of Prof. A. Franke at the University of Vienna, analyzed a sample of radioactive rock from near Winnipeg, Canada," determining it to be over 1,725,000,000 years old. Earlier that same year, Kroupa and her colleague Friedrich Hecht had discovered triple-weight hydrogen.
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Font
Smithsonian Institution Archives
Encapçalament
Edith Kroupa
Títol de la imatge
90-105, 12, "Portraits, Edith Kroupa"; "Austrian research chemist Edith Kroupa, 1934. The original caption dated September 18, 1934, reads: ""While revolution upset Vienna, Miss Edith Kroupa, research chemist working with a new method of microchemical analysis in the laboratory of Prof. A. Fran"
Autor
Science Service
Títol abreujat
SIA2008-4975
Dia i hora de generació de les dades
11:40, 25 gen 2011
Comentari del fitxer JPEG
90-105, 12, "Portraits, Edith Kroupa"; "Austrian research chemist Edith Kroupa, 1934. The original caption dated September 18, 1934, reads: ""While revolution upset Vienna, Miss Edith Kroupa, research chemist working with a new method of microchemical analysis in the laboratory of Prof. A. Fran"