Here’s a way of transmitting audio that makes it virtually impossible for someone else to listen in. Instead of sending radio waves bouncing all over creation, this uses the focused light of a ...

With a max screen size that can hit 300-inch on a peak luminance of 5,000 lumens, the Optoma UHZ68LV 4K is a TV killer.

In one of the cooler hacks we’ve seen recently, a bunch of hacking academics at the University of Michigan researched the ability to flicker a laser at ... to hack modern audio devices such ...

Knowledge of a laser beam's shape and output-power distribution is critical for optimizing laser performance. Neil Savage summarizes the latest beam-profiling products on the market. People using ...

the electrons in the beam interact with the electrons bound to the metal atoms to create X-rays," said LLNL's Jeff Colvin. "At NIF, we use the high-power laser beam instead of an electron beam to make ...