Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 315
The reflection of circularwaves is well illustrated inFig. 335, which is madefrom an instantaneous pho-tograph* of waves on thesurface of mercury. Thewaves were produced byattaching a light styleto one prong of a tuning-fork and making it vibratewith the end just touchingthe surface. A… … Taken, with the aid of an electric spark, by J. H. Vincent, of London, England.
Physics
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