Elementary lessons in electricity and magnetism (1906)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916, Schwetzky, Otto H. L. [from old catalog] · Chicago, Thompson & Thomas · leaf 378
r when used in conjunctionwith a sensitive short-coil astatic galvanometer like thatof Fig. 88. For the detection of excessively smalldifferences of temperature the thermopile is an invaluableinstrument, the currents being propoitional to the differ- 352 ELEMENTARY LESSONS ON [chap. viii. ence of… … Fi^. 145 CHAP. IX.] ELECTRICITY AND MAGNETISM. 353 CHAPTER IX. ELECTROOPTICS. Lesson XXXV.—General Relations between Lightand Electricity. 385. Of late years several important relations havebeen observed between electricity and light. Theserelations may be classified under the following heads :—…
Electricity · Magnetism
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