Pendulum Wave Demo

A captivating demonstration for all ages! The Pendulum Wave Demo simulates phases, beats, and frequencies. Features a stand with nine 7/8" (22mm) steel ball pendulums and comes with an initiator stick, which helps to simultaneously release all pendulums. When released, the pendulums will swing back and forth to quickly form a wave pattern and then cycle through different phases. Great for a classroom, as a gift, or for display.