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OSCILLOSCOPE TRACE: HARMONICA (A440)<br />
Shows Rapid Vibrations Characteristic Of Sound.The vibration of 440 cycles/sec causes compression and rarefaction of air molecules generating sound waves.

Fphoto-22898406A-2RM.jpg

OSCILLOSCOPE TRACE: HARMONICA (A440)
Shows Rapid Vibrations Characteristic Of Sound.The vibration of 440 cycles/sec causes compression and rarefaction of air molecules generating sound waves.

Copyright:© 1984 Richard Megna - Fundamental Photographs

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Richard Megna