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“Cymatics (from Greek: κῦμα “wave”), also known as modal phenomena, is the study of visible sound and vibration, typically on the surface of a plate, diaphragm, or membrane. Directly visualizing vibrations involves using sound to excite media often in the form of particles, pastes, and liquids.”
“If we could see sound with our eyes we would see a kaleidoscopic ocean of bubbles, not waves, as is commonly believed. Cymatics allows us to glimpse that ocean.” John Stuart Reid