Metronome synchronization

This phenomenon relates to the physical principle.

Joeey said:

excellent example of simple wave motion. when he puts the thin board on the cans this allows the connecting board to free float and then a harmonic wave form develops like on a guitar string. there are nodes now between each metronome. the pressure to self adjust to the waveform in the board overpowers the metronome. the outside force is the nodal waveform. i did a project similar except with string and evenly spaced hanging weights or balls. look up "simple wave motion."