Nikolay Nikolaevich Semenov - Definition and Overview

Nikolay Nikolayevich Semyonov (Никола́й Никола́евич Семёнов) (April 15 (April 3, Old Style), 1896 – September 25, 1986) was a Russian/Soviet physicist and chemist.

Semyonov was born in Saratov and graduated from Petrograd University in 1917. His primary scientific contribution is in quantitative theory of chemical chain reactions, theory of thermal explosion, burning of gaseous mixtures. In 1956 he was awarded the Nobel Prize in Chemistry (together with Sir Cyril Norman Hinshelwood).