Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 441
433 ELECTRICITY. paratus, therefore, constitutes a most sensitive thermoscope, far transcending the powers of any ther-mometer. A change of temperature of only T:yVotu Part °f one degree of Fahrenheits scale producesa perceptible movement of the 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 · Mechanics · Engineering
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