By pointing a laser beam at the microphone ... commands from hundreds of feet away with items ranging from $14 laser pointers ...

Laser pointers are a useful communication tool, but some can pose a hazard to the user and those around them. Never stare into a laser beam. Always point the laser away from the audience, and keep ...

Doctors are warning about the dangers of laser pointers after a Lebanon, Missouri, student was injured. Rowen Bressner said a classmate pointed a red laser in her eye.

There are wireless computer mice, touchpads, TV remotes, and laser pointers … and then there's the Xring D13. It combines all of those tools in one wireless device, which could be yours for US$109.

More severe damages also include temporary or permanent eye damage due to the amplification of the beam through the cabin ...

It’s a rare person who can pick up a cheap laser pointer and not wield it like a ... “pew-pew” factor that makes projecting a laser beam fun, even if it’s not the safest thing to do ...

Other papers analyze the concept of a "light sail": the device that would need to "catch" the laser beam and convert its energy into motion. Some researchers question whether such a sail would ...

Another benefit is the higher power output. Multimode laser diodes are able to generate higher optical power, making them ...

By combining the National Ignition Facility (NIF) laser and ultra-light metal foams, researchers at Lawrence Livermore ...

Quanta Ray PRO350 with frequency doubling, emitting a 532 nm beam – Sales brochure image ... As even some dodgy laser pointers are being (illegally) sold online are actually Class 2, this ...

The beam should bend back down. The physics is that of an upside-down mirage. In the tank, from top to bottom, the index of refraction is increasing, as in a mirage from the ground up. Shine the laser ...