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

By Mario Bertolotti

The ebook describes from a ancient viewpoint how cosmic rays have been chanced on. The booklet describes the learn in cosmic rays. the main target is on how the data used to be won, describing the most experiments and the conclusions drawn. Biographical sketches of major researchers are supplied. Cosmic rays have an authentic date of discovery that's associated with the recognized balloon flights of the Austrian physicist Hess in 1912. The yr 2012 can accordingly be thought of the centenary of the discovery.

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In 1913 the Cambridge Scientific Instrument Company, in UK, had produced commercial versions of the chamber, with the assistance from Wilson, and in 1927 the chamber was used for demonstrations to students. An advertisement on Philosophical Magazine in May 1926 was accompanied with the slogan “The most wonderful experiment in the world” as a declaration attributed to an anonymous eminent physicist (see Fig. 13) [61]. The Wilson chamber gave a permanent photographic registration that could be carried away and studied with ease, and the examination of the deflections obtained with magnetic fields and the counting of the droplets produced by ionization allowed to have precious information on the nature of the particles that were detected.

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