Download Celestial Messengers: Cosmic Rays: The Story of a Scientific by Mario Bertolotti PDF

By Mario Bertolotti

The ebook describes from a ancient standpoint how cosmic rays have been stumbled on. The publication describes the examine in cosmic rays. the main target is on how the data used to be received, describing the most experiments and the conclusions drawn. Biographical sketches of major researchers are supplied. Cosmic rays have an reputable date of discovery that's associated with the well-known balloon flights of the Austrian physicist Hess in 1912. The 12 months 2012 can consequently be thought of the centenary of the invention.

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Extra resources for Celestial Messengers: Cosmic Rays: The Story of a Scientific Adventure (Astronomers' Universe)

Sample text

One I did not know, the one titled ‘Die Frage der durchdring Strahlung ausserterrestrischen Ursprungers’. While I must make you my compliments for the clarity with which you expound in a simple form the status of this important question, I regret you did not quote the Italian works on this argument, works that have without any doubt the priority, for what pertains to the forecast of the very important conclusions to which successively came Gockel, You yourself, Mr.

Wilson speculated that some radioactive substance in the atmosphere could be carried down in the rain [75]. Aside from experiments carried out in laboratories, measurements were also made in different kinds of localities such as in caves, on the ocean, on lakes, etc. For example, Elster and Geitel experimented in caves and cellars observing that there the leakage rate was much greater than in the open air. They found that in a cave the loss was seven times faster than in the open air, even when air was clear and free of mist.

Millikan, Phys. Rev. 18, 236 (1926) 38. H. Compton, Phys. Rev. 21, 483 (1923) 39. D. Anderson, Phys. Rev. 43, 491 (1933) 40. A. Wilson, Philos. Mag. 5(6), 429 (1909) 41. R. Wilson, On a method of making visible the path of ionising particles. Proc. R. Soc. Lond. A 85, 285 (1911) 42. R. Wilson, On an expansion apparatus for making visible the tracks of ionising particles in gases and some results obtained by its use. Proc. R. Soc. Lond. A 87, 277 (1912) 43. H. Bragg, Philos. Mag. 8(6), 719 (1904) 44.

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