Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 234
reeping over the backs oflarger ones and carving their surfaces into ragged and ever-changingoutlines, in watching the billows of the sea, especially when thesurface is swept by a breeze of varying intensity. In the diagrams given above only transverse vibrations arerepresented, but the results… … Fig. 176. sound-waves an octave apart, while the rectangular diagramC D is intended to represent a portion of a transverse sectionof a body of air traversed by the joint wave corresponding tothe heavy wave-line above. The depth of shading in differentparts indicates the degree of condensation or…
Physics
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