In 1967, Jenny published the first volume of Cymatics: The Study of Wave Phenomena. The second volume came out in 1972, the year he died. This book was a written and photographic documentation of the effects of sound vibrations on fluids, powders, and liquid paste. He concluded, "This is not an unregulated chaos; it is a dynamic but ordered pattern."
1680 : Royal society member, philosopher, architect and polymath Robert Hooke noticed nodal patterns forming as he ran a violin bow along the edge of a glass plate covered with a fine layer of flour. Hooke is better known for giving us his law of elasticity [Hooke's Law] than for his interests in cymatics. It was when Ernst Chladni repeated Hookes' experiments, publishing his findings in the book "Discoveries in the Theory of Sound"  that Cymatics began to reach a wider audience. Now it is catching on like a wave. A sine wave . . . or a "bubble"?
Dr. Hans Jenny is a little dry in his presentation here but it was then for science and information, not for hollywood, so we can allow this ignorance of pretty packaging here just long enough to see what he brought to the forefront of sciences of matter, consciousness faculties and cognitive potentials.
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Max Planck - One of the founders of "quantum theory".
So why does any of this matter?