Elementary treatise on physics, experimental and applied, for the use of colleges and schools; (1904)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, tr, Reinhold, Arnold William, 1843- ed · New York, W. Wood & Co. · leaf 1113
currents are to be regarded as secondaryphenomena due to small but rapid changes in the earths magnetism : helikened the body of the earth to the magnetic core of a Ruhmkorffs coil (975):the lower strata of the atmosphere forming the insulator, while the upperand rarer, and therefore electrically… … —1046] Temperature of the Air 1087 core. Now in RuhmkorfPs coil the energy of the secondary current isderived from that of the primary current. Thus, if the analogy be correct,the energy of the aurora borealis may in like manner come from the sun ;but until we know more of the connection between…
Physics
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