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 19
bablyoccur at the other, or non-illuminated gap. With the alteredconnections it is, of course, not feasible to illuminate one sparkby the light of the other; the sparks are then alternative, notsuccessive. Wiedemann and Ebert, and a number of experimenters, haverepeated and extended this discovery,… … Fia. 8.—Zinc Rod in Arc Light, protected by Glass Screen. The lensesare of quartz, but there is no need for any lenses in this experiment;leakage of electricity begins directly the glass plate is withdrawn. a freshly-polished zinc or other oxidisable surface, if chargednegatively, is gradually…
Electric waves · Telegraph, Wireless · Electricity · Wireless Technology
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
