Tyndall, John, 1820-1893 · New York : Appleton · leaf 222
its fundamental note is sounded, is that of a rodfree at both ends, held at its centre, and caused to vibratelongitudinally. The two ends are places of vibration, thecentre is a node. Is there any way of feeling the vibrat-ing air-column so as to determine its nodes and itsplaces of vibration \ The… … a 14 SOUND. Fig. 101.
Sound
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