page_title: Leonid Sedov
hierarchical_section_title: Leonid Sedov
caption_attribution_description: English: Picture taken in the facilities of the Instituto Superior de Investigaciones Científicas during the VIII International Astronautical Congress, held in Barcelona in October 1957. Professor Leonid I. Sedov (left) congratulates Francesc Almor (right) from Aster, who was the first of Western Europe in receiving the beeps of the Sputnik 1 Français&#160;: Leonid I. Sedov (à gauche) félicite Francesc Almor d'Aster pour avoir, le premier, capté le signal du Spoutnik I (locaux de l'Institut Supérieur de Recherches scientifiques, lors du VIIIe Congrès International d'Astronautique de Barcelone, en octobre 1957). Català: Fotografia obtinguda als locals del Instituto Superior de Investigaciones Científicas durant les reunions del VIII Congrés Internacional d'Astronàutica celebrat a Barcelona l'octubre de 1957. El Professor Leonid I. Sedov (esquerra) felicita Francesc Almor (dreta) d'Aster per haver estat el primer d'Europa occidental en captar el senyal del Sputnik I
context_page_description: Leonid Ivanovich Sedov was a leading Soviet expert on hydro- and aerodynamics and applied mechanics.
  In 1930 Sedov graduated from the Moscow State University, where he had been a student of Sergey 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-called Sedov Similarity Solution for a blast wave. He was the first chairman of the USSR Space Exploration program and broke first news of its existence in 1955. He was president of the International Astronautical Federation from 1959 to 1961. Until recently, it had been thought that Sedov was the principal engineer behind the Soviet Sputnik project.
context_section_description: Leonid Ivanovich Sedov (Russian: Леонид Иванович Седов; 14 November 1907 – 5 September 1999) was a leading Soviet expert on hydro- and aerodynamics and applied mechanics.
  In 1930 Sedov graduated from the Moscow State University, where he had been a student of Sergey 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-called Sedov Similarity Solution for a blast wave. He was the first chairman of the USSR Space Exploration program and broke first news of its existence in 1955. He was president of the International Astronautical Federation (IAF) from 1959 to 1961. Until recently, it had been thought that Sedov was the principal engineer behind the Soviet Sputnik project.
caption: Sedov (left) in Barcelona, Oct.1957