Konstantin Eduardovich Tsiolkovskii
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Konstantin Eduardovich Tsiolkovsky (Russian: Russian: Константи́н Эдуа́рдович Циолко́вский, Polish: Konstanty Ciołkowski, September 5 1857 – September 19, 1935) was a Russian man who pioneered spaceflight a century before it was actually done. When Konstantin was little had a scarlet fever, cause of that he had some problems with hearing so he had to study by himself.