Dr. Hans Jenny made use of crystal oscillators and an invention of his own – the tonoscope – to set plates and membranes vibrating to show how sand and fluids react to the vibration.
This is called Cymatics.
These original films of Cymatics experiments were made in the 1960’s by Dr. Hans Jenny. They depict amazing experiments that produce physically visual representations of sound.
Cymatics – Bringing Matter to Life with Sound – Part 1
This is not unregulated Chaos. It is a dynamic but ordered pattern. – Dr. Hans Jenny
Bringing Matter to Life – Part 2
The more one studies these things, the more one realizes that sound is the creative principle. It must be regarded as primordial. No single phenomenal category can be claimed as the aboriginal principle. We cannot say, in the beginning was numbers or in the beginning was symmetry, etc….. They are not themselves the creative power. This power is inherent in tone, in sound.
– Hans Jenny
Bringing Matter to Life – Part 3
I remember the joy of looking at the cymatic sound patters, and the wonderful sense of “Yes!” that rippled through my being. Each picture was worth at least a thousand words and I felt as though I were reading volumes in just a few minutes.
– Dr. John Beaulieu, “A Commentary on Cymatics” in the foreword of the 2001 edition of Cymatics by Hans Jenny