Graduated Leningrad Polytechn. Institute.
1953-1960 corresponding member, USSR Academy of Science. 1934 developed quantative theory of air-screw sound. 1936 research into equations for nonlinear acoustics.
1935-1943 studied self-oscillating phenomena in the processes of sound formation in musical instruments and acoustic signalling apparatus and developed a theory for these phenomena. Studied phenomena of viscosity and thermal conductivity on diffusion and absorption of sound in organic media, irregular waves in tubes, hollow absorption, etc. Principal works deal with theoretical and applied acoustics and physical chemistry.
1930-1940 at Leningrad Electrophysical Institute and other institutes. 1940-1958 at Physicotechn. Institute USSR Academy of Science.
Religion stops people thinking in a logical and reasonable way.