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

Abstract: Theoretical and experimental studies of thermal self-defocusing and self-focusing CW laser beams in liquids and solids are given. An analytical theory of thermal self-actions, including ...

Marx suggested that if an interstellar vehicle were driven by the pressure exerted on it by a light beam transmitted from the Earth, then, because the recoil momentum and energy would now be ...

Researchers have proposed a new propulsion method that could make covering the vast distances required for interstellar missions feasible within a human lifetime. The fundamental challenge in ...

Most theoretical studies on "beam riders" for interstellar travel have focused on laser beams, which are composed of particles of light called photons. Notable examples include laser-powered ...

Welcome to our review of the Jetbeam E26-UV Kunai, a perfectly formed aluminium-clad pocket torch with some exceptional ...

The undated image shows the U.S. Navy testing a weapon system known as HELIOS from the USS Preble destroyer in the middle of the ocean.

We tested four super bright flashlights that range from a laser-powered flashlight that shoots a beam over a .5 mile to a ...

These move the beam at multiple meters per second to project a desired shape ... Again, safety is critical. Some videos online show the laser’s amazing potential, but they also show some ...

Police are investigating several reports of laser pens being shone at coastguard helicopters. There have been three incidents ...

Since a Hamas offensive took Israeli forces by surprise on October 7, footage has been circulating online that appears ... a blueprint for constructing a laser weapon defense system, this dream ...

A canal in a suburb of Argentina's capital Buenos Aires turned bright red this week. Local media reports suggest the colour ...