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Herman Potočnik
Slovenian-Croatian military officer, electrical engineer and physicist (1892–1929) / From Wikipedia, the free encyclopedia
Herman Potočnik (pseudonym Hermann Noordung; 22 December 1892 – 27 August 1929) was Austro-Hungarian Army officer, electrical engineer and astronautics theorist. He is regarded as an early theorist of modern space flight and is remembered mainly for his work concerning the long-term human habitation of space.