Science Fair Project Encyclopedia
Timeline of other background radiation fields
Timeline of other background radiation fields
- 1912 - Victor Hess discovers that the ionization of air increases with altitude indicating the existence of cosmic radiation
- 1949 - Herbert Friedman detects evidence for extrasolar X-rays
- 1962 - Riccardo Giacconi, Herbert Gursky , F. Paolini , and Bruno Rossi formally discover the X-ray background
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details


