Light energy, its physics, physiological action and therapeutic applications (1904)
Cleaves, Margaret Abigail, 1848-1917 · New York, Rebman company;[etc., etc.] · leaf 713
uctivity of Electricity Through Gases. 662 LIGHT ENERGY. emits negative corpuscles-—in fact cathode rays. The con-tinuous supply of negative corpuscles comes from the metalof the cathode, stimulated by the positive ions strikingagainst it. The action of the latter ionizing agents is due totheir… … Fig. 39.—Apparatus for illustrating the upward movement of aspark through the ionized and heated air.1 prettily illustrates the upward movement of a spark throughthe ionized and heated air. It begins near the bottom, butby the act of sparking at that level an effluvium or ionized 1Sir Oliver Lodge:…
