Curiosities of the sky, a popular presentation of the great riddles and mysteries of astronomy (1909)
Serviss, Garrett Putman, 1851-1929 · New York, London, Harper & brothers · leaf 183
e than after midnight, which is just what weshould expect if they originate in the way thatArrhenius supposes. Second, the theory offers an ex-planation of the alleged fact that the formation ofclouds in the upper air is more frequent in years whenaurorse are most abundant, because clouds are… … MARVELS OF THE AURORA proved that negative ions like those supposed to comefrom the sun play a master part in the phenomena ofcloud formation. Yet another singular fact, almost mystical in itssuggestions, may be mentioned. It seems that thedance of the auroral lights occurs most frequentlyduring…
Astronomy
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