Sergei Alekseevich Chaplygin
Encyclopedia
Sergey Alexeyevich Chaplygin ' onMouseout='HidePop("72432")' href="/topics/Novosibirsk">Novosibirsk
) was a Russia
n 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's Woman College in 1901, and of applied mathematics at Moscow School of Technology, 1903. Leonid I. Sedov
was one of his students.
Chaplygin's theories were greatly inspired by N. Ye. Zhukovsky, who founded the Central Institute of Aerodynamics
. His early research consisted of hydromechanics. His "Collected Works" in four volumes were published in 1948.
Chaplygin was elected to the Russian Academy of Sciences
in 1924. The lunar crater Chaplygin
and town Chaplygin
are named in his honor.
Novosibirsk
Novosibirsk is the third-largest city in Russia, after Moscow and Saint Petersburg, and the largest city of Siberia, with a population of 1,473,737 . It is the administrative center of Novosibirsk Oblast as well as of the Siberian Federal District...
) was a Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
n and Soviet physicist
Physicist
A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...
, 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
Chaplygin gas
Chaplygin gas, which occurs in certain theories of cosmology, is a hypothetical substance that satisfies an exotic equation of state in the formp=-A/\rho^\alphawhere p is the pressure, \rho is the density, with \alpha=1 and A a positive constant...
, named after him. He graduated in 1890 from Moscow University, and later became a professor. He taught mechanical engineering at Moscow's Woman College in 1901, and of applied mathematics at Moscow School of Technology, 1903. Leonid I. Sedov
Leonid I. Sedov
Leonid Ivanovitch Sedov was a leading physicist of the Soviet Union.During WW2 he devised the so-called Sedov Similarity Solution for a blast wave. He was also the first chairman of the USSR Space Exploration program and broke first news of its existence in 1955...
was one of his students.
Chaplygin's theories were greatly inspired by N. Ye. Zhukovsky, who founded the Central Institute of Aerodynamics
TsAGI
TsAGI is a transliteration of the Russian abbreviation for Центра́льный аэрогидродинами́ческий институ́т or "Tsentralniy Aerogidrodinamicheskiy Institut", the Central Aerohydrodynamic Institute....
. His early research consisted of hydromechanics. His "Collected Works" in four volumes were published in 1948.
Chaplygin was elected to the Russian Academy of Sciences
Russian Academy of Sciences
The Russian Academy of Sciences consists of the national academy of Russia and a network of scientific research institutes from across the Russian Federation as well as auxiliary scientific and social units like libraries, publishers and hospitals....
in 1924. The lunar crater Chaplygin
Chaplygin (crater)
Chaplygin is a large lunar impact crater that lies on the far side of the Moon. It is located to the southeast of the huge walled plain Mendeleev, about mid-way between the craters Schliemann to the northeast and Marconi to the southwest. It is about the same size as Albategnius on the near...
and town Chaplygin
Chaplygin, Lipetsk Oblast
Chaplygin , formerly Ranenburg , is a town and the administrative center of Chaplyginsky District of Lipetsk Oblast, Russia, located at the confluence of the Stanovaya Ryasa and Yagodnaya Ryasa Rivers, north of Lipetsk. Population:...
are named in his honor.