The Coolest One - Seeing Sound Waves - Awesome

coolestone.com — Quote from pbanders: Sonic transducer in the center of the plate, as the frequency increases, you see different vibrational modes of the plate. The areas where the salt settles are the null areas, where vibration is at a minimum. The shapes depend on freqency of the sound and the geometery of the plate, whether it's free or held at the boundaries, May 23, 2008 View in Crawl 4