If you place 32 metronomes on a static object and set them rocking out of phase with one another, they will remain that way indefinitely. Place them on a moveable surface, however, and something very interesting (and very mesmerizing) happens, notes io9.
The metronomes in this video fall into the latter camp. Energy from the motion of one ticking metronome can affect the motion of every metronome… read more
Video Source: IkeguchiLab