A droplet of silicone oil bounces in place on a vibrating fluid bath.
(Photo Credit: Dan Harris and John Bush/MIT)
A droplet of silicone oil walks across the surface of a vibrating fluid bath.
(Photo Credit: Dan Harris and John Bush/MIT)
A pair of walking droplets lock into orbits through the influence of their common wave field. The video is strobed at the bouncing frequency, so the drops appear to glide across the surface.
(Photo Credit: Dan Harris and John Bush/MIT)
Source: American Institute of Physics