Nikolai Grigoryevich Yegorov

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Nikolai Grigoryevich Yegorov

Nikolai Grigoryevich Yegorov ( Russian Николай Григорьевич Егоров , born September 7 . Jul / 19th September  1849 greg. In St. Petersburg ; † 22. July 1919 in Petrograd ) was a Russian physicist and university teacher .

Life

Jegorow studied at the physical - mathematical faculty of the University of St. Petersburg with a degree in 1870. In 1873 he became an assistant at the St. Petersburg Technology Institute. In addition, he taught physics at the Michail Artillery School, in the higher medicine courses for women and at the 3rd grammar school. In 1877 he became a master doctorate in physics. In 1878 he became an associate professor at the University of Warsaw . In 1882 he received his doctorate in physical and mathematical sciences . From 1884 to 1900 he was a professor at the St. Petersburg Academy of Military Medicine and a private lecturer at the University of St. Petersburg with a lecture on spectral analysis . One focus of Jegorov's work was spectral studies of sunlight. In 1887 he initiated an expedition to Krasnoyarsk to observe the total solar eclipse , in which Alexander Popow and Michail Schatelen also took part. Jegorow was one of the first to repeat Heinrich Hertz's experiments .

From 1894 Jegorow worked in the St. Petersburg Main Office for Weights and Measures , of which he became director in 1907. In 1897 he proposed a new method for measuring the Zeeman effect . As chairman of the VI. Department (for electrical engineering ) of the Russian Technology Society (RTO), Yegorov took part in the struggle for the recognition of Alexander Popov as the inventor of a wireless telegraph , so that on Egorov's suggestion Popov was awarded the RTO Prize in 1898. In 1901 he became a member of the International Committee for Weights and Measures .

1906 of the St. Petersburg Electrical Engineering Institute (ETI), which in 1893 from the art school of the Foundation of the Alexander Popov Prize postal telegraph office was created, Yegorov belonged to award Commission next Pawel Woinarowski (Chairman), Alexander Krakow , Pyotr Ossadtschi , Michail Schatelen, Alexei Petrowski and others.

Yegorov founded the first X-ray laboratory in Russia . On Yegorov's initiative, national standards for electrical units of measurement were produced in 1909–1913 .

After the October Revolution in 1918, under Yegorov's leadership, the draft of a government decree introducing the metric system of units was drawn up.

Individual evidence

  1. ↑ a b c d e f Санкт-Петербургский государственный электротехнический университет «ЛЭТИ» им. В.И. Ульянова (Ленина) СПбГЭТУ "ЛЭТИ": Егоров Николай Григорьевич (accessed September 14, 2017).
  2. ↑ a b c Егоров (Николай Григорьевич) . In: Brockhaus-Efron . 1907.
  3. ^ JA Chramow: Yegorow Nikolai Grigorjewitsch . In: AI Achijeser : Physics: Biographical Lexicon . Nauka, Moscow 1983, p. 110 (Russian).
  4. ↑ В.П.СЕВЕРИНОВА (член НТОРЭС им А.С.Попова.), В.А.УРВАЛОВ (почётный член НТОРЭС им А.С.Попова.): Первые лауреаты премии имени профессора А.С.Попова (accessed on 6 September 2017).
personal data
SURNAME Yegorov, Nikolai Grigoryevich
ALTERNATIVE NAMES Егоров, Николай Григорьевич (Russian)
BRIEF DESCRIPTION Russian physicist and university professor
DATE OF BIRTH September 19, 1849
PLACE OF BIRTH St. Petersburg
DATE OF DEATH July 22, 1919
Place of death Petrograd