Light energy, its physics, physiological action and therapeutic applications (1904)
Cleaves, Margaret Abigail, 1848-1917 · New York, Rebman company;[etc., etc.] · leaf 755
-gence increases until the leaves touch the tin-foil strips.When this happens the leaves are discharged and collapse,and the cycle recommences. With a weak radium prepara-tion, Strutt obtained a full divergence in about 20 hours.But with a more active preparation the cycle can be com- TLlec. World… … Fig. 43.—Apparatus for Demonstrating the Absorption of theRadium Radiations. Strutt. A Modification of Strutts Apparatus Demonstrating theNegative Charge of the |3 Radiations.—Paschen,1 in anillustrated note, shows that the apparatus of Strutt fordemonstrating the positive charge of radium enclosed…
