what makes pendulum double or quadruple
But one device. nicely fits the bill: the double pendulum. A double pendulum consists of a bar swinging from a pivot, with a second pendulum attached to the first barâs end. While the double pendulum is a simple physical system, youâd be hard pressed to find another device this simple that. exhibits so wide a range of behavior. Give it a little push and. the motion is fairly predictable.