or Laser Telescope Blaster as he calls it, works for long distances. His solution lies in some surprising physics: the larger the diameter of the beam, the more slowly it will diverge. So he used ...

Laser weaponry evokes a wide range of emotions, often bringing to mind science fiction films like "Star Wars" or "Star Trek." ...

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 ...

Israel’s experimental air-defense system known as the Iron Beam uses laser technology to strike down drones and rockets, but military analysts say the device needs U.S. support to improve its ...

Laser weaponry stirs a variety of emotions. It is often associated with science fiction films, such as the "Star Wars" ...

But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...

After that I grab the handheld gun and I get to work ... Either that, if it's not the pressure or the heat, the laser beam itself will vaporize the substance on top. So it's either or, right?

Victoria Beckham was targeted by a laser beam gun sight while rehearsing for the Brit Awards last year. She noticed the tiny red point of light - which usually heralds a bullet from a laser ...