Timeline of other background radiation fields
From Wikinfo
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
References
- Adapted from the Wikipedia article, "Timeline_of_other_background_radiation_fields" http://en.wikipedia.org/wiki/Timeline_of_other_background_radiation_fields, used under the GNU Free Documentation License
