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The 19th May 2001 marks the 100th anniversary of the birth of the outstanding Russian scientist Nikolai Yevgrafovich Kochin, who made a great contribution to the development of meteorology and hydrodynamics and was one of the founders of the modern school of hydroaerodynamics in Russia.
Even in school, Kochin's teachers were impressed by his remarkable capabilities and his brightness and speed of thought. In 1918 he entered the Mathematics Section of the Physics and Mathematics Department of Petrograd University. In 1919, however, he was called up by the Red Army, within whose ranks he took part in the siege of Petrograd, and it could be said to be a miracle that he survived. In 1922 he returned to university, where, in spite of the interruption caused by the war, he graduated in 1923.
In 1922, before graduating, on the invitation of Professor A. A. Fridman, he began working in the Mathematics Department organized by Fridman at the Main Geophysics Observatory, and he worked there right up to his move to Moscow in 1935. Fridman is rightly considered to be the founder of the school of meteorology in Russia. He is also widely known as the author of the famous non-stationary solution of the equations of the General Theory of Relativity which had only recently been published; this solution is of fundamental importance to cosmology and is often referred to as the model of the expanding universe. In the same time, Fridman completed his book Experiments in the Mechanics ofa
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