Researchers from Caltech and the University of Southern California have demonstrated a new technology that is able to image the human brain using laser light and ultrasonic sound waves. The technology ...

The microsphere, levitated by the dual beam optical tweezer (green), is driven by the active optomechanical system (red) to generate nonlinear phonon lasers (coloured waves). Meanwhile, the injected ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto.

On Mars, the speed of sound depends on its pitch. All sound travels slower through Mars’ air compared with Earth’s. But the higher-pitched clacks of a laser zapping rocks travels slightly faster in ...

Surprise students with the clarity of the Sharp/NEC NP-M430WL M Series DLP classroom projector, built to last 15 years. Laser projectors are quickly becoming the norm in schools and boardrooms across ...