+**Angular momentum** quantifies an object's tendency to spin, a rotational analogue to linear momentum. It remains constant in a system free from external [Torque](/wiki/torque), governing everything from planets in orbit to a dancer's pirouette, a profound manifestation of [Conservation Law](/wiki/conservation_law).
+## See also
+- [Moment of Inertia](/wiki/moment_of_inertia)
+- [Linear Momentum](/wiki/linear_momentum)
+- [Orbital Mechanics](/wiki/orbital_mechanics)
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