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 466
applied to similar substancesobtained from the sap of other trees ; thus shellac is a resin. The STANDARD ELECTRICAL DICTIONARY. 461 resins are a family of vegetable products ; the solid portions of thesap of certain trees. Common resin, lac, dragons blood, areexamples. They are all dielectrics and… … Fig. 290. Thomsons Replenisher. Resinous Electricity. Negative electricity; the electricity pro-duced upon the surface of a resinous body by rubbing it; such abody is shellac or sealing wax ; flannel and other substances maybe used as the rubbing material. (See Electrostatic Series.) Resistance,…
Electricity
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