In fact, only three factors can be used to define a black hole: its mass, its angular momentum and its electric charge. In ...

It seems obvious, then, that, cosmically speaking, everything spins—but this basic fact becomes downright bizarre in the head ...

A puzzling form of superconductivity that arises only under strong magnetic fields has been mapped and explained by a ...

"God does not play dice." This famous remark by Albert Einstein critiqued the probabilistic nature of quantum mechanics.

Only the component of the spinning person's angular momentum in the same direction as the Earth's angular momentum maters. If the person is in New Orleans, the latitude is about 30 degrees.

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.

To compensate and keep angular momentum constant, the washer's angular velocity has to increase. The reverse happens when you loosen the string and allow the washer to move out farther.