Physicists at The University of Texas at Austin have experimentally confirmed a decades-old theory ...

A vortex tube splits a stream of air into hot and cold! This is how it works and why it doesn't violate the second law of thermodynamics.

Nikola Tesla was a genius who, more than 100 years ago at the dawn of the electric age, invented alternating electrical current, the radio, and the AC motor, among other things, that are instrumental ...