Abstract
THE cosmic radiation is defined as that small Jportion of the ‘penetrating radiation’ which is of cosmic origin. The main purpose of this paper is to present a preliminary report upon some very Tecent work which throws new light upon the properties of these extraordinary rays, and shows that still harder ones exist than had heretofore been found, rays capable of penetrating 190 feet of water, or about 16-7 feet (5 metres) of lead, before being completely absorbed.
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References
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MILLIKAN, R., CAMERON, G. New Results on Cosmic Rays. Nature 121, 19–26 (1928). https://doi.org/10.1038/121019a0
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DOI: https://doi.org/10.1038/121019a0
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