The channel’s latest video demonstrates a gun that shoots a narrow beam of soundwaves, along with its most striking property: ...

You can hear sound, of course, but what if you could see it with a laser? That’s what [Goosetopherson] thought about, and thus a new project that you can see in the video below was born. The ...

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 ...

Several police departments across America are planning to try a new device that uses focused sound, turned way up. These so-called non-lethal... Focused Sound 'Laser' for Crowd Control Crowd control ...

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 ...

Imagine broadcasting sound in a targeted and specific manner. Instead of using a bullhorn to speak to a crowd, you could single out one person in that crowd without disturbing anyone else. Or, picture ...