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Born on June 14th:

Charles-Augustin de COULOMB (1736 - 23.8.1806), an outstanding French physicist and engineer, whose experimental research was fundamental to the formation of the theory of electricity and magnetism, a member of the Paris Academy of Sciences. In 1785, he experimentally established the basic law of electrostatics (Coulomb's law), invented torsion scales a year earlier. Investigated the deformation of the torsion of the threads, set its laws, and the laws of dry friction. The unit of electric charge and the law of interaction of electric charges are named after him.

Andrei Andreevich MARKOV (1856 - 7.7.1922), a largest Russian mathematician, an academician. The specialist in number theory, probability theory and mathematical analysis. He established a number of basic laws that laid the foundation for the theory of random Markov processes. He was engaged in many applications of probability theory and gave, in particular, a probabilistic justification of the method of least squares. His textbook "Calculating Probabilities" (1900) had a great influence on the development of mathematical science in the homeland of the scientist.

Jacob Christian Hansen ELLEHAMMER (1871 – 20.5.1946), a Danish inventor. Known mainly for its aircraft with vertical takeoff and landing. In addition, he is the developer of the film projector and electric vehicles. According to some data, he owns from 300 to 400 patents for inventions. In 1986, Ellehammer was inducted into the International Aviation and Cosmonautics Hall of Fame at the San Diego Aviation and Astronautics Museum.

Petr Vasilievich GOLOLOBOV (1918 – 13.3.1974), a Soviet shipbuilder. For the creation of the first in the USSR nuclear submarine (project 627), he was awarded the Lenin Prize in 1959.

Fredric John BAUR (1918 - 4.5.2008), an American chemical engineer, the developer and author of the patent for the packaging of the most popular potato chips in the world, Pringles, which until 2012 were produced by Procter & Gamble, and after 2012 - by Kellogg’s. Among other inventions of a chemical engineer, special frying oil and freeze-dried ice cream are known.

Kirill Yakovlevich KONDRATIEV (1920 - 1.5.2006), a geophysicist, an academician (1984). His main works are devoted to satellite meteorology, atmospheric optics, actinometry, problems of global ecology and climate change, in total more than 1,500 scientific articles and 102 monographs. One of the organizers of the Nansen International Center for Environmental Research and Remote Sensing. The winner of the State Prize of the USSR (1983). For the first time he led the environmental studies conducted by astronauts from space.

Lev Petrovich GORKOV (1929 – 28.12.2016), a theoretical physicist, an academician (1987), the Lenin Prize winner (1966). An author of works on the theory of solids, the theory of superconductivity, quantum liquid, quantum mechanics, hydrodynamics, gas dynamics. Together with A.A.ABRIKOSOV and I.M. KHALATNIKOV developed (1958) a theory of the behavior of superconductors in a high-frequency field, and in 1960, together with A.A. Abrikosov - the phenomenological theory of superconductors with an admixture of magnetic atoms and predicted the gapless conductivity phenomenon. He also developed calculation methods in quantum statistics, solved a number of problems in physical hydrodynamics, in particular, he constructed a nonlinear solution to the problem of plane convection.

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