The young folk's cyclopædia of games and sports ; (1899)
Champlin, John Denison, 1834-1915, Bostwick, Arthur Elmore, 1860-1942, joint author · New York, H. Holt and company · leaf 290
er. First,the acid is used up ; and secondly,the copper gets covered with bubblesof hydrogen, which stick to it. 6. In like manner try strips ofvarious metals first in one liquid andthen in another. It will be found,by using the galvanometer, thatalmost any two metals, immersed inany acid or salt… … Gravity Battery.Take a glass preserve-jar, and bend ELECTRIC BATTERIES 282 ELECTRIC BATTERIES a strip of zinc into a cylinder halfas high as the jar, and just smallenough to slip into the mouth. Thezinc must be amalgamated eitherbefore or after the cylinder is made.With a pair of pliers bend the…
Games · Sports · Card games
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