Source: Central Library for Physics, Vienna.

From Trafficking materials and gendered experimental practices: Radium research in early 20th century Vienna by Maria Rentetzi

  • European: 1800-present
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  • Franziska Seidl at the Physics Institute. She was the director of the First Physics Institute from 1945 to 1947, when Felix Ehrenhaft returned to Vienna from exile. In 1957 she was named a university professor in Vienna. Seidl invented the diaphragm-less telephone and worked among other things on ultrasound, optics of sound, electrical reactions of insulators, and oscillating crystals. Source: Central Library for Physics, Vienna.