Abstract
IN the issue of NATURE of November 6, p. 662, Sir Joseph Larmor directs attention to the fact that during the magnetic storms of October 14 and 15, the Canadian beam signals were greatly reduced in strength. The explanation that appeals to me is connected with the fact that ionic refraction is not the only factor which determines long distance short wave (λ < 60 m.) transmission. Together with this there is the effect of energy absorption by collisions of electrons with molecules. That this absorption plays an important part in transmission seems to me to be upheld by a considerable body of evidence, not the least of which is that afforded by the action of magnetic storms.
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ECKERSLEY, T. Magnetic Storms and Wireless Communication. Nature 118, 803–804 (1926). https://doi.org/10.1038/118803b0
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DOI: https://doi.org/10.1038/118803b0
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