Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 194
Fig. 91. … ^^^^C^^ wave, and as the length of the whole 172 LECTURE y this fork is 4 feet 4 inches, at the moment the prongreaches b the foremost point of the sonorous wave will beat C, 2 feet 2 inches distant from the fork. The motionof the wave, then, is vastly greater than that of the fork. Fig. 92.a h V ^…
Sound
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