A research team succeeds in solving a decade-old physical puzzle: the question of the fate of angular momentum during the ultrafast demagnetization of nickel crystals by laser light.

The consistency of Kepler’s 2nd law with conservation of angular momentum is impressive considering that Kepler did this work in the early 1600’s. This is compared with the time frame of Newton’s work ...

2nd course in the Quantum Mechanics for Engineers SpecializationInstructor: Wounjhang Park, Ph.D., ProfessorThis course introduces the quantum mechanical concept of angular momentum operator and its ...

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 ...

Conservation of angular momentum is a little bit tricky to define. Essentially it says that something that's spinning wants to stay spinning, with the same amount of spin.

A compact, integrated light source that simultaneously produces multiple laser beams with different, very high orbital angular momenta has been unveiled by US researchers. The technology may mark a ...