Double Pendulum Chaos

The motion quickly becomes very different. Ask students to predict what will happen. Release it from nearly the same starting position twice. Key idea: Small differences grow in a chaotic system. Ask: Can tiny starting differences make a big change? Safety and cleanup: Use lightweight pendulum and clear swing space. https://www.google.com/search?q=%22Double%20Pendulum%20Chaos%22%20science%20demonstration%20experiment