This Video Is Crazy Cool!

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 surfacelike in this video, however, and something very interesting (and very mesmerizing) happens! The all begin to "sync up" with one another. No trick photography here! How does it work? Energy from the motion of one ticking metronome can affect the motion of every metronome around it, while the motion of every other metronome affects the motion of our original metronome right back. All this inter-metranome "communication" is transferred by the moving board, which serves as an energetic intermediary between all the metronomes that rest upon its surface. As the video progresses, keep you eye on the second metronome in the last row. It lags behind all the others and then catches up! Insane physics!