Filled Fact on Instagram: "Angular momentum is a measure of how much rotational motion and object has. According to the law of conservation of angular momentum, if no external torque acts on a system, it total angular momentum remain constant. This principle explain why a spinning ice skater speed up when pulling in their arms and slow down when extending them. It applies to everything from planets orbiting the sun to toys like fidget spinners. This conservation law is a fundamental part of rota