Cosmic Rays at Earth

P.K.F. Grieder, "Cosmic Rays at Earth"
Elsevier Science | 2001 | ISBN: 0444507108 | 1112 pages | PDF | 13,1 MB

In 1912 Victor Franz Hess made the revolutionary discovery that ionizing radiation is incident upon the Earth from outer space. He showed with ground-based and balloon-borne detectors that the intensity of the radiation did not change significantly between day and night. Consequently, the sun could not be regarded as the sources of this radiation and the question of its origin remained unanswered. Today, almost one hundred years later the question of the origin of the cosmic radiation still remains a mystery.
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