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New evidence for a change with time of the total energy brought into the earth by cosmic rays

Millikan, R. A. and Neher, H. V. (1939) New evidence for a change with time of the total energy brought into the earth by cosmic rays. Physical Review, 56 (6). pp. 491-493. ISSN 0031-899X. http://resolver.caltech.edu/CaltechAUTHORS:MILpr39b

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Abstract

In attempting to find a seasonal or winter-summer difference between the integrated value of the cosmic-ray ionization from sea level up to the top of the atmosphere at Omaha we obtain much too large a difference to be interpreted as an "atmospheric-temperature," or seasonal effect, at all. By comparison with Forbush's world-wide cosmic-ray changes we find in our results new evidence for a change with time in the total energy brought into the earth by cosmic rays.


Item Type:Article
Additional Information:©1939 The American Physical Society. Received 17 July 1939.
Record Number:CaltechAUTHORS:MILpr39b
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:MILpr39b
Alternative URL:http://dx.doi.org/10.1103/PhysRev.56.491
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6684
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Dec 2006
Last Modified:26 Dec 2012 09:24

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