Kundt tube

American

[koont] / kʊnt /

noun

Physics.

a gas-filled tube used to measure the speed of sound: when a membrane at one end is vibrated at a frequency that produces standing waves, a layer of powder forms lumps at the nodes.

Named after August Kundt (1839–94), German physicist

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023