Higher Math for Beginners

Higher Math for Beginners - Ya. B. Zeldovich

Yakov Borisovich Zel’dovich ForMemRS[1] (Belarusian: Я́каў Бары́савіч Зяльдо́віч, Russian: Я́ков Бори́сович Зельдо́вич; 8 March 1914 – 2 December 1987), also known as YaB,[2] was a Soviet physicist of Belarusian Jewish ethnicity, who is known for his prolific contributions in cosmology and the physics of thermonuclear and hydrodynamical phenomena.[3]

Zel’dovich played a crucial role in the development of the Soviet Union’s nuclear bomb project, associated closely in nuclear weapons testing to study the effects of nuclear explosion from 1943 until returning to academia in 1963 to embark on pioneering contributions on the fundamental understanding of the thermodynamics of black holes and expanding the scope of cosmology.[4]Yakov Zel’dovich was born into an ethnic Belarussian Jewish family in his grandfather’s house in Minsk, Belarusian region in Russia, on 8 March 1914.[5] But in mid-1941, the Zel’dovich family moved to Leningrad (now St. Petersburg). They resided there until August 1941, when the family was evacuated together with the faculty of the Institute of Chemical Physics to Kazan to avoid the Axis Invasion of the Soviet Union.[6]:301 They remained in Kazan until the summer of 1943, when Zel’dovich moved to Moscow.[6]

His father, Boris Naumanovich Zel’dovish, was a lawyer; his mother, Anna Petronova Zel’dovich (née Kiveliovich), a translator from French to Russian, was a member of the Writer’s Union.[6] Despite being born into a devoted and religious Jewish family, Zel’dovich was an “absolute atheist”.[7][8]

Zel’dovich was an autodidact. He did not earn a college degree or even attend college, but he was regarded as having a remarkably versatile intellect, and during his life he explored and made major contributions to a wide range of scientific endeavors.[4] From a given opportunity in May 1931, he secured an appointment as a laboratory assistant at the Institute of Chemical Physics of the USSR Academy of Sciences, and remained associated with the institute for the remainder of his life.:301[6][4] As a laboratory assistant, he received preliminary instructions on the topics involved in the physical chemistry and built up his reputation among his seniors at the Institute of Chemical Physics.[6]:301 Without having earned an undergraduate degree, he was allowed to attend the post graduate coursework at the Saint Petersburg State University due to upheavals that took place in educational infrastructure in Russia.[6]:301

In 1936, he was successful in his candidacy for the Candidate of Science degree (a Soviet equivalent of PhD), having successfully defended his dissertation on the topic of the “adsorption and catalysis on heterogeneous surfaces”.[6]:301 The centrality of his thesis focused towards the research on the Freundlich (or classical) adsorption isotherm, and Zel’dovich discovered the theoretical foundation of this empirical observation.[1]

From 1932–34, Zel’dovich attended the undergraduate courses on physics and mathematics at the Leningrad State University (now St. Petersburg State University), and later attended the technical lectures on introductory physics at the Leningrad Polytechnic Institute (now Peter the Great St. Petersburg Polytechnic University).[9]:2–5

In 1939, Zel’dovich prepared his dissertation based on the mathematical theory of the physical interpretation of nitrogen oxidation, and successfully received the Doctor of Science on Physmatics when it was reviewed by Aleksandr A. Freiman.[10]:39–40 Zel’dovich discovered its mechanism, known in physical chemistry as the thermal NOx mechanism or Zel'dovich mechanism.