File:Rsnr.2011.0049.pdf

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Summary[edit]

This article explains how Langevin really invented sonar by making use of his fine knowledge of piezoelectricity.

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current09:48, 5 March 2020 (266 KB)Bleridon (talk | contribs)This article explains how Langevin really invented sonar by making use of his fine knowledge of piezoelectricity.