ENGINEER

Sergey Chaplygin

1869 - 1942

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Sergey Alexeyevich Chaplygin (Russian: Серге́й Алексе́евич Чаплы́гин; 5 April 1869 – 8 October 1942) was a Russian and Soviet physicist, mathematician, and mechanical engineer. He is known for mathematical formulas such as Chaplygin's equation and for a hypothetical substance in cosmology called Chaplygin gas, named after him. He graduated in 1890 from Moscow University, and later became a professor. He taught mechanical engineering at Moscow Higher Courses for Women in 1901, and of applied mathematics at Moscow School of Technology, 1903. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Sergey Chaplygin is the 248th most popular engineer (up from 266th in 2019), the 1,477th most popular biography from Russia (up from 1,646th in 2019) and the 30th most popular Russian Engineer.

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Among ENGINEERS

Among engineers, Sergey Chaplygin ranks 248 out of 389. Before him are Ferdinand Mannlicher, Charles F. Brush, Eugène Flachat, Ed Heinemann, Louis Vicat, and Fredrik Henrik af Chapman. After him are Hans Moravec, Léon Serpollet, Brian McGuire, Waloddi Weibull, Louis Pouzin, and Antoine Nicolas Duchesne.

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Contemporaries

Among people born in 1869, Sergey Chaplygin ranks 114. Before him are Kiến Phúc, Marcel Cachin, Aleš Hrdlička, Friedrich Wilhelm Foerster, Johannes Linnankoski, and Armas Järnefelt. After him are Ivan Aguéli, Daniel Salamanca Urey, Alice Hamilton, Kálmán Kandó, Józef Mehoffer, and Phoebus Levene. Among people deceased in 1942, Sergey Chaplygin ranks 175. Before him are Nicholas Adontz, Carl Sternheim, Valentin Loos, Zofia Zamenhof, José Díaz, and Alexandre Volkoff. After him are Romà Forns, Mohammad Ali Foroughi, John Mulcahy, Jerzy Różycki, James Juvenal, and Oleg Losev.

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In Russia

Among people born in Russia, Sergey Chaplygin ranks 1,477 out of 3,761. Before him are Tatyana Shchelkanova (1937), Olga Sanfirova (1917), Alexandre Volkoff (1885), Frol Kozlov (1908), Vasily Agapkin (1884), and Nikolay Bauman (1873). After him are Natalya Lisovskaya (1962), Savva Mamontov (1841), Igor Bondarevsky (1913), Filipp Oktyabrsky (1899), Alexander Serafimovich (1863), and Daniil Shafran (1923).

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Among ENGINEERS In Russia

Among engineers born in Russia, Sergey Chaplygin ranks 30. Before him are Alexander Lodygin (1847), Vasily Mishin (1917), Alexander Kemurdzhian (1921), Vladimir Petlyakov (1891), Semyon Lavochkin (1900), and Vladimir Grigoryevich Fyodorov (1874). After him are Mikhail Simonov (1929), Nikolay Kamov (1902), Alexander Mikulin (1895), Nikolay Makarov (1914), Mikhail Tikhonravov (1900), and Viktor Kozin (1953).

Russian born Engineers

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