Cool, yes, but a bit passé - https://videosift.com/video/32-Metronomes-Become-Synchronized (2012)

Dude. I've got 63 orbits around the sun under my belt. I'm passé.

Left Shark almost didn't want to cooperate.

So, The real question here is which one was the Alpha. What one had the stronger beat, and had the rest time up with it?

None of them. The floating platform causes a resistance in swings which start slowing them all down. Those that are off rhythm the most get more resistance. Eventually, like an asymptote curve on a graph, they all begin to converge on each other.

Also like a asymptote curve they may never actually achieve a %100 sync because as a metronome begins to match its sync more, the more the resistance against it lessens, but as the resistance lessens the amount of force to correct it is less.

Oh, I understand how it works , I was just being snarky