What you are seeing
Cymatics (from Greek kyma, wave) is the study of visible vibration. A driven plate or fluid surface prefers standing-wave geometries at resonant frequencies — nodal lines where the surface barely moves, antinodes where it heaves. This chamber sums circular membrane modes (Bessel) or square Chladni modes near your chosen drive frequency, with Lorentzian resonance peaks controlled by damping.
- Water view — height as teal depth and white crests.
- Sand view — bright where nodes collect (classic plate experiment).
- Field view — signed interference coloring for mode structure.
Pair with the Platonic Solids course, Platonic Civ, and the Visual index — geometry as study, play, and vibration.