Figure 2.

Cymatics: Study of Wave Phenomena and Vibration. All sounds we hear are waves, typically in the air, that vibrate your eardrums, which, in turn, create electrical signals that are sent to your brain for interpretation. These waves are only invisible to our eyes simply because the air is invisible. The concept of cymatics is to use a substance other than air to transmit sound to visualize the waves. This was most notably performed by Hans Jenny, who attached a sine wave frequency generator to a metal plate, placed lycopodium powder on the metal plate, and then vibrated the metal plate at different frequencies using the frequency generator. He found that at certain frequencies, the sand or dust would form geometric patterns that became more and more complex at higher and higher frequencies [30].