The pendulum wave — when physics turns into living art!

In this mesmerizing experiment, a row of pendulums is hung with lengths that differ only slightly.
They all start swinging at the exact same moment, moving perfectly in sync at first. But as time passes, each pendulum drifts out of rhythm because of its tiny difference in length.
In natural / science we know entropy!

Entropy is a fundamental concept in science, primarily meaning the measure of disorder, randomness, or energy dispersal in a system, governed by the Second Law of Thermodynamics, which states that entropy in an isolated system always increases, moving toward equilibrium (more spreading out) and making energy less available for work, explaining why things naturally become messy or cool down. It's also used in information theory to quantify uncertainty or information. 
Instead of chaos, something magical happens — a smooth wave appears, rippling gracefully across the line as if the pendulums are dancing together.

The pattern keeps changing: the motion scatters, then slowly reunites…
until the pendulums swing in perfect harmony again — a full cycle from order to chaos and back to order.