Editha Karl-Kroupa (1910-1991)

ID: SIA Acc. 90-105 [SIA2008-4975]

Creator: Science Service

Form/Genre: Black-and-white photographs

Date: 1934

Citation: Smithsonian Institution Archives, Accession 90-105, Science Service Records, Image #SIA2008-4975

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Summary

Austrian research chemist Editha Karl-Kroupa (1910-1991), 1934. The caption on this photograph, 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. She emigrated to the United States in the 1950s and worked as an chemist for the Monsanto Company, Dayton, Ohio, where her research focused on phosphates.

Creator

Science Service

Subject

  • Karl-Kroupa, Editha
  • University of Vienna
  • Monsanto Company

Cite as

Smithsonian Institution Archives, Accession 90-105, Science Service Records, Image #SIA2008-4975

Repository Loc.

Smithsonian Institution Archives Capital Gallery, Suite 3000, MRC 507; 600 Maryland Avenue, SW; Washington, DC 20024-2520

Date

1934

Restrictions & Rights

  • No restrictions. All requests for duplication and use must be submitted in writing and approved by the Smithsonian Institution Archives. Contact SIA Reference Staff for further information (email photos@si.edu)
  • No Known Copyright Restrictions

Topic

  • Chemistry
  • Women scientists

Form/Genre

Black-and-white photographs

Local number

SIA Acc. 90-105 [SIA2008-4975]

Physical description

Gelatin silver prints