A subwoofer driven at mid-bass frequencies excites a thin water layer on plastic wrap, producing Faraday waves and complex ripple structures. Grazing flashlight illumination reveals the sharp wave crests, droplets, and patterned surface instabilities formed by the competition between inertial forcing and surface tension.

https://www.flowvis.org/wp-content/uploads/2025/12/Team-Third-Report-HANSEN.pdf