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

First some background. Vector calculus is the branch of mathematics that deals with the differentiation and integration of vector fields. The reason it is so important in physics is that more or ...

Researchers at the Massachusetts Institute of Technology's Center for Bits and Atoms have built a cheaper, simpler motion sensor made of a tiny metal bead suspended by a fluctuating electric field.

As this quantum particle moved, it was observed to scatter off the gas particles and to reflect backwards. This led to an oscillatory motion, in contrast to what a marble would do when falling in ...