Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 496
By simply tappinfj the tube the tilings are decohered andare ready for action again. In the coherer shown in Fig. 571the tube is about 3 inches long andhas an internal diameter of about -|incli. The plugs P, P snugly slidein the tul\», and a small amount of filings ..i placed between them. Marconi… … Fio. 572.—biii.pie form of apparatus to illustrate wirelesstelegraph}. The ti-ansmitter is on the left, the receiveron the right. 575. Wireless Telegraphy. By meansof electric waves it is j^ossible to sendsignals from one place to another withoutconnecting wires. A simple arrangementfor doing this…
Physics
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