Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 447
438 ELECTRICITY. paratns, therefore, constitutes n most sensitive TirERMoscoPE, far transcending the powers of any ther-mometer. A change of temperature of only ysf^th part of one degree of Fahrenheits scale producesa perceptible movement of tho needle! … In the excitation of electricity by electrical machines, the movement of one portion of matter nearanother at sensible distances, each carrying with it its respective electrical atmosphere, reciprocally dis-turbs the state of rest of these atmospheres, and produces the phenomena of electrical…
Mechanical engineering
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