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 446
e of this instrument, causes the needle of the galvanometer to move around on its pivot. Thisthermo-electric battery, taken in connection with the appended galvanometer, constitutes a far moresensitive test of the approach of a warm body than the most delicate thermometer. The approach of aperson… … 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!
Mechanical engineering
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