Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 265
ction between the activity of the sunand terrestrial magnetic storms. This can- not be accounted for by direct magneticaction of the sun, consequently it would ap-pear to be due to electric currents, probablyof the nature of cathode rays, projected fromthe sun through space. The regular varia-tions… … Terrestrial Magnetism of electric traction, with its attendant leak-age of current and magnetism, has renderednecessary the removal of the Kew instru-ments to a new observatory on Eskdalemuirin Dumfriesshire—a situation about 15 milesaway from any railway. See Deviation;Dip, Magnetic; Magnetometer;…
Electrical engineering
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