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condensation and rarefaction, 2
 

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Fig. 14.—Transverse Vibrations

Elementary treatise on natural philosophy, based on the Traité de physique of Augustin Privat-Deschanel, by J. D. Everett. Part IV. Sound and Light. Thirteenth Edition. New York, 1900.
 

12 November 2012
tags: alphabet; Privat-Deschanel, Augustin; propagation in an open space; sound; undulations; waves