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Sunspots, Solar activity, Radio waves, GeomagnetismEdition | Availability |
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Book Details
Edition Notes
Title from cover.
"A daily character figure obtained from data of short-wave transatlantic telephone circuits shows correlation with character figures of terrestrial magnetism and earth currents."
"Presented before The American Geophysical Union , Washington, D. C., April 1935"--Verso of cover.
"Published in National Research Council, Transactions of the American Geophysical Union, part I., pp. 26-31, August 1935 ; [published in] Proceedings of the Institute of Radio Engineers, vol 23., pp. 1361-1369, November 1935"--Verso of cover.
Includes bibliographical references.
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Feedback?May 28, 2023 | Created by MARC Bot | import new book |