HUGE SUNSPOT
EFFECT ON RADIO SERVICES The huge sunspot which according to authorities has interfered v/ith cable and radio communication with Britain has attracted much attention from amateur astronomers, but the dull and rainy weather conditions prevailing have restricted observations. Interruptions to cable and radio services during auroral displays, said an authority, were due to two separate effects of sun disturbances, and not by the auroral. They disturbed the reflecting layer in the upper atmosphere which carried the wireless waves round the earth. The result was that radio messages were carried only by a ground wave, which died out in a comparatively short distance. At the same time the earth’s magnetic field was disturbed by electric currents in the upper atmosphere. This was known as *a magnetic storm and induced currents in cable circuits which interfered with the transmission of messages. Several Hamilton observers were hopeful of witnessing a good auroral display last night, but the rain clouds prevented a good view. During the next few nights there should be at least one occasion when there will be a good display.
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Bibliographic details
Waikato Times, Volume 129, Issue 21531, 20 September 1941, Page 6
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181HUGE SUNSPOT Waikato Times, Volume 129, Issue 21531, 20 September 1941, Page 6
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