• Thumbnail for Konstantin Tsiolkovsky
    Konstantin Eduardovich Tsiolkovsky (Russian: Константи́н Эдуа́рдович Циолко́вский; Polish: Konstanty Ciołkowski; 17 September [O.S. 5 September] 1857 –...
    41 KB (4,509 words) - 12:15, 5 May 2024