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So nice. I knew I had to share it here from @uprootexcavator on Instagram

youtube: @tiggamac

Video credit :@dreamtrackbuilder

This is blowing my mind. I took a picture after 2 thinking “what are the odds?!”

All the pendulums are released at the same time, but because they have different lengths, they swing at slightly different speeds. That difference makes them drift in and out of sync, creating the wave-like motion.

credit: marcel.clemens.photography