Lodge, Oliver, Sir, 1851-1940 · London, New York, Macmillan and co. · leaf 158
Fin. 20.—A couple of radii of the above disk provided with points to dip into mercury,and rotating constantly under the influence of the steel magnet a. CHAP. VII.] ELECTRO-MAGNETISM. 139 (Gores arrangement, Fig. 21).^ In every case rotationbegins as soon as a magnet is brought near. 72. Nor is the… … Fig. 21,—Gores circular railway. The light spherical metal ball revolves round thetwo concentric metal hoops or rails whenever it is made to convey a currentbetween them in a vertical magnetic field. gases, although they convey electricity by somethingof the nature of convection, are susceptible to…
Electricity
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