Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 896
kable property of changing its resistance with pressure, and that the ratios of these changescorrespond exactly to the pressure. On this principle is constructed the telephone shown in Fig.4111. The carbon disk is represented at E, near the diaphragm A, which is placed between platinum plates I)…
Mechanical engineering -- Dictionaries
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