Pendulum Snake https://www.physicsfunshop.com/search?keywords=snake 15 independent swinging pendulums, each with a slightly longer period than the one to its left side, create mesmerizing wave patterns. As the pendulums get further out of phase with each other the waves become shorter and faster. ➡️ Follow the link above for info on where to get this pendulum snake toy and other amazing items featured here on Physicsfun | Physicsfun