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Quantum Explained | Quantum & Astrophysics on Instagram: "This experiment demonstrates the conservation of angular momentum, one of the most fundamental laws in physics. In a closed system, when no external torque acts, the total angular momentum remains constant. By changing the shape or distribution of mass, we can see changes in rotational speed — but the overall angular momentum stays the same. This principle explains how figure skaters spin faster when they pull their arms in, or how planet