5 metronomes began at totally different instances eventually synchronize on this nifty video from UCLA. It has been a known phenomenon because the seventeenth century:
In 1665, Dutch physicist Christiaan Huygens, inventor of the pendulum clock, was mendacity in mattress with a minor sickness and watching two of his clocks hanging on a wall, mentioned Henrique Oliveira, a mathematician on the College of Lisbon and co-author of a brand new examine detailing the findings. Huygens seen one thing odd: Regardless of how the pendulums on these clocks started, inside a few half-hour, they ended up swinging in precisely the other way from one another.
Picture: YouTube / uclaphysicsvideo