Fain successfully started his scientific career, and already in 1965 became a professor in his
alma mater. He wrote several scientific books translated into English and German. In 1966 he moved to Moscow and started successful work in the
Institute of Solid State Physics in
Chernogolovka. — on the left side. Unofficial seminar of scientists-
refuseniks, April 1977 Starting from 1972 Fain gradually started to participate in a
Zionist movement. He took part in
refusenik scientific seminar, and also in
Samizdat. He applied for exit visa to Israel in 1974 and became a
refusenik. He also became unemployed after dismissal from his work on political grounds. ==Sociological research of Soviet Jewry==