The angular momentum can be in a different direction than the angular velocity - but in this case, I is not a scalar quantity. Here is the short scoop on the angular momentum principle.

This general definition allows both orbital and spin angular momentum. We then derive the most fundamental property of angular momentum - commutation relations among their Cartesian components.

The angular momentum depends on the moment of inertia, I. ... The angular velocity (ω) is the time derivative of the angle. This means I can write: This is the key right here.

Angular momentum is a fundamental quantity in physics that describes the rotational motion of objects. In quantum physics, it ...

The angular momentum of light comes in two varieties: spin and orbital. Spin is associated with optical polarization, which is the orientation of light’s electric-field oscillations. Orbital angular ...

In our solar system, the giant gas planets (Jupiter, Saturn, Uranus, and Neptune) spin more rapidly on their axes than the inner planets do and possess most of the system's angular momentum. The ...

If the spinning were to stop, the angular momentum of every object on Earth would rip the surface apart, resulting in a really, really bad day. "This is just a thought experiment," said James ...