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 76
cuit ofthe coil. The ordinary trembling break of the induction coilwas at work in the usual way, so that while the signalling keywas depressed continuously there was a torrent of sparksbetween the knobs of the secondary. This method of signal-ling was identical with that employed by everyone since… … Fig 48 (Fig. 11 of Prof Slabys book on Spark Telegraphy). From this mast in the town of Dover (Fig. 49) signalscould be sent to another loftier mast at the South Foreland(Fig. 50), where it is itself elevated by chalk cliffs far abovethe sea. From this South Foreland station, which wassimilar in…
Electric waves · Telegraph, Wireless · Electricity · Wireless Technology
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