Light energy, its physics, physiological action and therapeutic applications (1904)
Cleaves, Margaret Abigail, 1848-1917 · New York, Rebman company;[etc., etc.] · leaf 756
com- ^hys. Zeit., March 15, and Elec. World and Eng., April 9, 1904. KAIHUM. 705 pletely insulated from b. Through b passes in spiral form theplatinum wire, f, which is connected to the electroscope, d.The second electroscope, c, is fixed to the lead cylinder. Assoon as a good vacuum is reached,… … Fig. 44.—Paschens Modification of Strutts Apparatus. if both are connected by a wire. This current was first meas-ured by Wein. The divergence of e is always smaller thanthat of d, especially on account of imperfect absorption ofthe j3 radiation in lead of 2 mm. thickness. Within an hourthe…
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