sentences:  In 1921 he became Chief Astronomer at the new Geodetic Survey of Austria (Federal Office for Metrology and Survey or "Bundesamt für Eich- und Vermessungswesen").From 1936 to 1942 and from 1945 to 1949 he was a Professor at the Vienna University of Technology (TU Wien) and over the 1948-9 term he was the university's rector.He was born on 28 October 1881 in Trautenau, northern Bohemia (now Trutnov, Czech Republic).