Erwin Finlay-Freundlich

Erwin Finlay-Freundlich FRSE FRAS
Born	(1885-05-29)29 May 1885 Biebrich, Hesse, Germany
Died	24 July 1964(1964-07-24) (aged 79) Wiesbaden, Hesse, Germany
Education	Charlottenburg Polytechnic University of Göttingen
Spouse	Kate Hirschberg ​ (m. 1913)​
Scientific career
Fields	Astronomy
Workplaces	Berlin Observatory Einstein Tower University of Istanbul Charles University of Prague St. Andrews University University of Mainz
Thesis	Analytische Funktionen mit beliebig vorgeschriebenem unendlich-blättrigem Existenzbereiche (1910)
Doctoral advisor	C. Felix Klein Paul Koebe

Einstein Tower in Potsdam

Erwin Finlay-Freundlich FRSE FRAS (German: [ˈfʀɔɪntlɪç]; 29 May 1885 – 24 July 1964) was a German astronomer, a pupil of Felix Klein. Freundlich was a working associate of Albert Einstein and introduced experiments for which the general theory of relativity could be tested by astronomical observations based on the gravitational redshift.