KONSTANTIN TSIOLKOVSKY(1857-1935). Russian aeronautical engineer. Tsiolkovsky, seated, and his assistant V. Assonov, with models of his aerostat, or dirigible.
KONSTANTIN TSIOLKOVSKY(1857-1935). Russian aeronautical engineer. Tsiolkovsky, seated, and his assistant V. Assonov, with models of his aerostat, or dirigible.