a textbook that was used to introduce students to radiometry well into the 1960s. Two of her students became professors in Germany. A Google Doodle on 5 April 2019 commemorated Kohn's 132nd birth anniversary. Published works Müller-Pouillets Lehrbuch der Physik. (II. Auflage), unter Mitwirkung zahlreicher Gelehrter herausgegeben von A. Eucken, O. Lummer (+), E. Wätzmann. In five volumes: I. Mechanik und Akustik; II. Lehre von der strahlenden Energie (Optik); III. Wärmelehre; IV. Elektizität und Magnetismus; V. Physik der Erde und des Kosmos (einschl. Relativitätstheorie). Braunschweig: 1925–1929. Band II, Zweite Hälfte, Erster Teil (Volume II, 2nd half, 1st part), volume editor Karl W. Meissner: 1929. Further reading References External links Hedwig Kohn papers, 1884-1950. American Institute of Physics, Niels Bohr Library & Archives, College Park, MD 20740, USA. 1887 births 1964 deaths 20th-century German physicists Duke University faculty Jewish emigrants from Nazi Germany to the United States German women physicists Jewish physicists People from the Province of Silesia Scientists from Wrocław Wellesley College faculty 20th-century German women scientists