Franziska Seidl

Franziska Seidl (; 1 July 1892 – 14 June 1983) was an Austrian physicist. She was professor for experimental physics at the University of Vienna. One of her main research areas was ultrasound.

Biography Franziska was born in Vienna to Franz and Maria Vicari, née Anton, who were proprietors of a small business. She attended primary and secondary school and received musical education. In 1911, she married Wenzel Seidl (born 1881 in České Budějovice, Bohemia), a physics and mathematics teacher at a gymnasium in Hranice, Moravia. They lived in Hranice until Wenzel was conscripted in World War I, and died in 1916 at the Isonzo Front.

After the dissolution of Austria-Hungary, Seidl became a citizen of Czechoslovakia. She returned to Vienna, took the (the secondary school exit exam) in 1918, and began to study at the University of Vienna in the same year. Her main subject was physics, with secondary subjects as mathematics and chemistry. She wrote her doctoral thesis on measuring short time intervals with the Helmholtz pendulum, and earned her doctorate in physics in 1923. Seidl, Franziska; Fröhlich, Helene; Hofer, Elisabeth: Über die Einwirkung von Radium- und Röntgenstrahlen auf Piezoquarze ("On the effect of radium- and X-rays on piezoelectric crystals"), 1933. Seidl, Franziska; Petritsch, Pia: Elektrische Leitfähigkeit der erstarrten Schmelze von Seignettesalzkrystalle ("Electrical conductivity of the solidified melt of Seignette salt crystals"), 1936.