Learn three super visual and easy card tricks, the paintbrush change, shake change, and pinkie change, simple illusions that create stunning effects with just a bit of practice.

Cornell researchers have built a programmable optical chip that can change the color of light by merging photons, without ...

A bump against a table corner or a fall while playing a spirited game of catch—life is full of these little encounters that slip by unnoticed, until the next morning when the skin reveals what wasn’t ...