In what year was the physicist of whom Erwin Finlay-Freundlich was a working associate born?
Erwin Finlay-Freundlich Erwin Finlay-Freundlich FRSE FRAS (] ; 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.
Stephen L. Adler Stephen Louis Adler (born November 30, 1939) is an American physicist specializing in elementary particles and field theory.