Physics demonstrations: Chladni patterns

This is in interesting blog post and somewhat into my field of energy and flower essence healing! Thank you to the post author for this. ūüôā Out of the lab, but still a geek!

Skulls in the Stars

A good demonstration of a physical phenomenon should be both insightful and exciting.  Sometimes, a demonstration succeeds at both so well that it is practically awe-inspiring.  Such is the case, for me, with the demonstration of Chladni patterns, exotic and beautiful vibration figures that can be displayed with the help of just a little sand.

The demonstration of a couple of Chladni patterns are shown in the video below.  A metal plate, supported by a post in its center, is vibrated at a single frequency by use of a mechanical driver.  For most frequencies, nothing at all happens; when certain special frequencies are hit, however, standing waves appear on the plate, driving the sand away from the points of large vibration to the points of no vibration.  By varying the frequency of oscillation, we can find a large number of the so-called resonance frequencies and their accompanying patterns, which become…

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