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Jeans, James Hopvud

( English physicist and astronomer)

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Biography Jeans, James Hopvud
photo Jeans, James Hopvud
English physicist and astronomer James Jeans Hopvud (James Hopwood Jeans) (1877-1946) was born in London. In 1900, Mr.. He graduated from the University Kembrdzhsky and for several years he taught mathematics there. Astronomical Work Jeans are devoted to the problem of the structure and evolution of stars, star systems and nebulae.
In 1904. Jeans expressed the idea of atomic energy, and in 1917. He drew attention to the fact that the substance in the bowels of the stars should be fully ionized and therefore completely homogeneous, close to the ideal of "electron-nuclear, gas. Idea Jeans at the initial stage of development of astrophysics served served as a powerful incentive to study the stellar interior and atmospheres.
Jeans - by one of the hypotheses about the origin of the solar system. Jeans believed that the planets were formed from the jets of material ejected from the solar attraction of a passing star.
Jeans' hypothesis on the formation of the solar system was very popular in the 20-30-ies. Twentieth century., But later was proved by its failure. American astronomer G. Russell, Soviet astronomer H. N. Parijskii and others have shown that out-of-substance of the sun would revolve around him at a distance of several solar radii, while the radii of planetary orbits in the hundreds and thousands of solar radii. In addition, out-substance at a temperature of millions of degrees, would dissipate in space.
Jeans have successfully dealt with the popularization of science. Widespread recognition of his book "Mysterious Universe", "Stars and their fate," "The Universe Around Us," "Movement of the Worlds, in which the Jeans popularly described the difficult problems of physics and astronomy.


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Jeans, James Hopvud, photo, biography
Jeans, James Hopvud, photo, biography Jeans, James Hopvud  English physicist and astronomer, photo, biography
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