Tyndall, John, 1820-1893 · New York : Appleton · leaf 121
ings back to its first position, passes it, returns, and thus vibrates for a time to and fro across its position of equilibrium You hear a sound, but 8 114 SOUND. the sonorous waves which at present strike your ears donot proceed immediately from the string. The amountof wave-motion generated by so… … entire mass of the box m n, and to the air within the box,which thus become the real sounding bodies. That the vibrations of the string alone are not sufficientto produce the sound may be thus experimentally demon-strated : a b, Fig. 32 (next page), is a piece of wood placedacross an iron bracket…
Sound
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