Two missiles speed directly toward each other, one at 9,000 miles per hour and the other at 21,000 miles per hour. They start ...

The phase and the group velocity of light propagating in conventional optical media cannot exceed the speed of light in ...

When humans kick swim through water, vortices form around their legs, generating the force that propels them forward. However, the mechanisms underlying variations in the structure of these vortices ...

A group of scientists studying the San Fermín festival in Pamplona, Spain, believe there’s a way to predict the motions of a large crowd.

We explain how your swing or clubhead speed relates to your ball speed and the role both play in driving distance ...