Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 153
132 LECTURE ly. Fig. 57. … more beautiful than the last one, fig. 57. Here we havethe second division of the rod, the sinuosities of which cor-respond to 174-J times its rate of vibra-tion as a whole. Thus every changein the sound of the rod is accompaniedby a change of the figure upon thescreen. The rate of vibration of the…
Sound
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