Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 487
ds of production. Sodium and Potassium.—The method which Sir Hum-phrey Davy employed to produce a few grains of potassiumand sodium is now used to manufacture these metals by the ton. It is necessary to work with a fused electrolyte in place of an aqueoussolution in this case. Owing to the…
Electrical engineering
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