Sound : an elementary text-book for schools and colleges (1913)
Capstick, John Walton, 1858- · leaf 264
edisplacement of the string at thepoint we are observing is ab up-wards, and the moment at whichthe displacement has that valuecan be determined from thedisplacement oa of the fork atthe same moment. Draw a circle with its centreanywhere in the vertical linethrough 0, the centre of theLissajous… … Fig. 116 In the figure there are 16sections, the points of division being numbered from 1 to 16.The point numbered 1 is for convenience chosen so as to lievertically under one of the points where the Lissa,jous Figurecuts the horizontal line through 0. The vertical lines willmark a scale of equal…
Sound
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