Barton, Edwin H. (Edwin Henry), b. 1858 · London, Macmillan and Co., limited · leaf 450
C2A. Further, trie motion ol the string f1g. 88.—Configuration of Bowed String.at one point x is first upwards with constant speed / for the time a, and thendownwards with constant speed g for the time (r — a) ;where t is the complete period of the compound vibration ;a = xt/I, f=8U(l — x)/It and g… … 430 SOUND CHAP. VIII see equation (8)), yet, the separate speeds and the fractionsof the period during which each is maintained vary frompoint to point, and in such wise as to make the amplitudesat the different places differ from each other, and becomeindeed the ordinates of the two parabolic…
Sound
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