Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 190
4, &c. EXMIINATIOX BY POLARISED LIGHT. 167 § 6. Action of Sonorous Vibrations on Polarised Light, When a tube or rod vibrating longitudinally yields itsfundamental tone, its two ends are in a state of free vibra-tion, the glass there suffering neither strain nor pressure.The case at the centre… … Thus while at the ends tve have the maximum of vibra-tion, but no change of density, at the centre ive have themaximum changes of density, but no vibration. We have now cleared the way for the introduction of avery beautiful experiment made many years ago by Biot,but never, to my knowledge,…
Sound
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