Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 594
orms similar INDUCTION BY ELECTRIC CURRENTS. S7I to those shown in the autographs, Figs. 550 and 551, butthe images of them vanished when the current ceased ; 6 inFig- 553 shows forms taken by the discharge from the posi-tive terminal in a vacuum tube, wliich liave substantiallythe same appearance… … Figures formed by the Electric Discharge in Vacuum Tubes, De la Rue says: The gases, in all probability, re-ceive impulses in two directions, at right angles to eachother, that from the negative being the more continuous ofthe two. The autographic records here shown seem tobear out this theory,…
Physics · Lantern projection · Electric apparatus and appliances
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