Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 284
Fig. 272. When the sound-waves enter the capsule by the mouthpiece and thetube, the membrane yielding to the condensation and rarefaction of thewaves, the coal gas in the compartment on the right is alternately contractedand expanded, and hence are produced alternations in the length of the Fig.… … flame, which are, however, scarcely perceptible when the flame is observeddirectly. But to render them distinct they are received on a mirror withfour faces, M, which may be turned by two cog-wheels and a handle. As -289] Dcterini)iation of the Intensity of Sotuids. 267 long as the flame burns…
Physics
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