Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 206
en 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 ?… … 184 LECTURE V. Fig. 101.
Sound
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