Signalling through space without wires : being a description of the work of Hertz & his successors (1900)
Lodge, Oliver, Sir, 1851-1940, Hertz, Heinrich, 1857-1894 · London : "The Electrician" Printing and Publishing Company, Limited · leaf 30
nd sometimes requiring a faintly perceptibleamount of force to detach them. The experiment wasdescribed to the Institution of Electrical Engineers in 1890,*and Prof. Hughes said he had observed the same thing. The experiment of the syntonic Leyden jars can beconveniently shown with the double knob… … Fig. 16a.- -Receiver in Syntonic Jar Experiment, with Knob Cohererand Tapper-back (c/. Fig. 4). them is a battery and a bell. Every time the receiving jarresponds syntonically to the electric vibration of the other jar,the knobs cohere (if properly adjusted) and the bell rings. Ifthe bell is free…
Electric waves · Telegraph, Wireless · Electricity · Wireless Technology
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
