Walking water is an odd phenomenon where water droplets are caught on a surface of water and do not coalesce with the larger body of liquid. This can is accomplished easily by vibrating the body of water so that there are standing waves on the surface. These waves catch the falling droplet and allows water to walk on water.
The whole video studies this phenomenon but my favorite part is the experiment done in space. The body of water is a hollow sphere placed onto a speaker. They tried all kinds of tones and music and observed different behaviors. It was the Bach cello music that caught everyone’s attention. See for yourself… The video should begin at 9:25
Video courtesy of SmarterEveryDay https://www.youtube.com/channel/UC6107grRI4m0o2-emgoDnAA
And astronaut Don Pettit