The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 287
of the pile (which brassend closes the glass tube containing the discs) from momentarychange by approach of some conductor connected to the earth.There are other guard tubes also. Gun, EIectro=magnetic. An electro-magnet with tubular core.If, when it is excited a piece of an iron rod is pushed into… … Fig-. 193. Electric Popgun. Gutta Percha. The hardened milky juice of a tree, theIsonandra ^utta, growing in Malacca and other parts of theEastern Archipelago. It is much used as an insulator or constit-uent of insulators. Resistance after several minutes electrification per i centimetercube at 54°…
Electricity
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