Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 497
ing thebell, taps the coherer and decoheres the filings, making themready for 9,nother signal. For sending si^jnals across a room or from one room toanother only a small coil and wires but a few feet high arerequired; but if the distance to be covered is great verj^powerful transmitters and very… … FlQ. 573. -Receiving apparatus for wirelesstelegrapliy. PASSAGE OF ELECTRICITY THROU-^JH GASES 487 577. Passage of Electricity through Gases. In investigatingthis subject the gas is usually contained in a glass tube(Fig. 574) into the ends of c^^^j which platinum wires are fi^-^.…
Physics
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