If you've ever played an instrument, you're probably familiar with the humble metronome. Back and forth, back and forth... but have you ever wondered what it would take to get more than one clicking in sync?

Turns out, even with a lot of them, all you really have to do is wait.

So, if they're all set off at different times with a different timing, how do they eventually synchronize? Essentially, it comes down to physics. You might notice these are all the same brand of metronome, hence they all have the same weight and bob. If the weight is in the same place on every single metronome, eventually it's going to even out, no matter how many there are.

Or it's magic. Whatever works.