Two pendulums on a frame of flexible steel.

3A70.20 • B+15+10

diagram for demo

Two pendulums on a flexible frame. Two heavy steel balls hang on strings from a steel frame. (The frame is made of thin strips of cold rolled steel). As the balls move, the frame flexes, transferring energy.

Related Demos

3A70.25 Two large pendulums coupled with spring. 3A70.10 Wilberforce pendulum: Oscillates between rotation and up-down. 3A70.35 Two balls hung on the same string, one in middle, one at the end. 3A70.31 Three large pendulums coupled with two springs.
B+15+0 Two large pendulums coupled with spring. B+15+5 Wilberforce pendulum: Oscillates between rotation and up-down. B+15+15 Two balls hung on the same string, one in middle, one at the end. B+15+1 Three large pendulums coupled with two springs. B+15+20 5 Metronomes on board and cans sync their oscillations B+15+25 Applet: Normal Modes B+15+26 Coupled Oscillations Simulation