An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 40
ed form of dry cell called the Burn Boston Battery. This (Fig. 14) is built very much as the regular dry cell, except that it is made really dry, and when it is ready to be used, and not until then, the water is added through a pinhole in the top. It is claimed that such a cell will keep for any… … Fig. 14. — Burn Bos-ton Battery. 24 ELECTRICITY AND MAGNETISM surface reduced to metallic copper. The negative electrodeis zinc, and the electrolyte is a concentrated solution of sodiumhydroxide (caustic soda). The hydrogen reduces the copperoxide to metallic copper and thus does not polarize the…
Electricity · Magnetism
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