Lynde, Carleton John, b. 1872 · New York : Macmillan · leaf 181
Fig. 106. — The gravity cell. i66 PHYSICS OF THE HOUSEHOLD … The metals are zinc and carbon and the Hquid a strong solu-tion of ammonium chloride ( sal ammoniac )• Polarization is decreased as follows.The carbon plate is placedin a porous cup and issurrounded by manganesedioxide and particles ofcarbon. The manganesedioxide decreases polariza-tion by…
Physics · Home Economics
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