September 23, 2011

The modes of vibration made visible

"When the plate is oscillating in a particular mode of vibration, the nodes and antinodes that are set up form complex but symmetrical patterns over its surface. The positions of these nodes and antinodes can be seen by sprinkling sand upon the plates; the sand will vibrate away from the antinodes and gather at the nodes."

 Bonus video: Cymatic experiment
Wiki - Cymatics

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