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Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)

Johnson, Frank G., 1835- · Chicago, A.H. Andrews · leaf 402

An illustration from Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families, 1878, leaf 402
ontaining acid and an alkali, the acidappears at the positive and the alkali atthe negative electrode. In all reduction of the metals from thesolution of a metallic salt, the acid appearsat the positive, and the metal at the nega-tive electrode. That is, oxygen and theacids appeal- at the positive,… … 757. The quantity of electricity required to producechemical action is enormous.—It has been demonstrated that itrequires, to decompose one grain of water, an amount of frictionalelectricity equal to that furnished by the discharge of an electric panehaving thirty-two acres of surface— equal to a…

Physics · Astronomy

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