Abstract
ONE of the most familiar and fascinating experiments in acoustics is that initiated by Kundt in 1866, in which the vibrations of an air column enclosed in a glass tube are revealed by means of a fine powder such as cork or lycopodium. Almost everyone is familiar with the manner in which the dust collects in little heaps at the nodes, thereby providing a simple means of estimating the velocity of sound in the gas enclosed in the tube.
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Vortex Motion in Vibrating Columns of Air. Nature 129, 711–712 (1932). https://doi.org/10.1038/129711a0
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DOI: https://doi.org/10.1038/129711a0