Walker: a droplet is surfing on a vibrating liquid bath —Naresh Sampara (University of Nottingham)

A millimeter-sized oil droplet can bounce on a vertically vibrated liquid bath for an unlimited time. It may couple to the surface wave it emits; leading to horizontal self-propulsion called walker. Its motion is recorded optically with a high-speed camera (Phantom MIRO110, 2000 FPS) and used a brown color backlighting. The presented video is 0.01x slower.