Leonid Ivanovich Sedov (Russian:Леонид Иванович Седов; 14 November 1907,Rostov-on-Don – 5 September 1999,Moscow) was a Russian physicist who worked as an engineer in the formerSoviet space program.
In 1930 Sedov graduated from theMoscow State University, where he had been a student ofSergey Chaplygin, with the degree of Doctor of Physics and Mathematical Sciences. He later became a professor at the university.
During World War II, he devised the so-calledSedov Similarity Solution for ablast wave, now calledTaylor–von Neumann–Sedov blast wave after three scientists who did that independently. In 1947 he was awarded theChaplygin Prize [ru].
He was the first chairman of theUSSR Space Exploration program and broke first news of its existence in 1955. He was president of theInternational Astronautical Federation (IAF) from 1959 to 1961.[1] Until recently, it had been thought that Sedov was the principal engineer behind the SovietSputnik project.[2]
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