Correspondence re work on radio noise from sun and galaxy, radio fluctuations of sources. Detailed letters from Ryle re joint Manchester-Cambridge experiment on fluctuations. Radio Licence and interference. Letters with Kopal re hydrogen line detection. Correspondents: R G Smith; Martin Ryle; J G Merton;J G Porter; J L Pawsey; J. A. Ratcliffe; Ernst Opik; Leo Kiepenheuer (Fraunhofer Institut); Patrick Blackett; J S Greenall; Gordon Little Alan Maxwell; M A Ellison; Zdenek Kopal; E Findlay-Freundlich; Harlow Shapley.
File: Radio Noise
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- ReferenceGB 133 JBA/CS7/16/3
- Dates of Creation1946-1952