Cosmic raysAlthough it is seventy years since cosmic radiation H B S discovered and a great deal is known about its nature. the origin o f cosmic rays remains unclear. The supernovae in the Galaxy have long been postulated as the source: new evidence is now added to that view. E D C Bhat er U / New Scientist 1986 6th Fehruary pp48-51 Submarine optics A useful account of submarine optical communications cabling.E D
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