Sound Waves - creating patterns

In the video, rock salt has been sprinkled on a metal plate. Sound waves are then passed through the plate causing it to vibrate. Watch as the sound starts at a low frequency and slowly increases. At various times ‘standing waves’ of sound generate a pattern in the salt. As the sound frequency continues to rise, each pattern breaks down into chaos and then reforms into a new pattern, with the new patterns becoming more complex as the frequency/vibration increases. This is the same pattern that occurs in our consciousness as we change.

English: Stationary sound source produces soun...
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