On September 17, 1857, the great scientist Konstantin Eduardovich Tsiolkovsky was born.


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On September 17, 1857, the great scientist Konstantin Eduardovich Tsiolkovsky was born.
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On September 17, 1857, the great scientist Konstantin Eduardovich Tsiolkovsky was born. - Scientists, The science, Birthday, Konstantin Tsiolkovsky, Inventors, Space, Rocket, Longpost
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