Red-light devices are all over social feeds and make enormous promises. From the many, we find the few that are actually worth your commitment, time, and money.

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We report the working of a simple and inexpensive fiber-optic volumetric sensor. It is based on the famous Beer-Lambert principle where intensity of a collimated light beam while passing through a ...

In this paper, we present an electrically controllable microoptical component for light beam steering and light intensity distribution built on the combination of nematic liquid crystal (LC) and ...

Each quasar fires a collimated jet well over 300 000 light-years long —enough to leapfrog the gap between the Milky Way and Andromeda. Radio images from the Very Large Array trace the jet’s skeleton, ...

SpaceX launched a Falcon 9 rocket on Monday night, once again creating a light show for Southern California and even those hundreds of miles away. The company posted on X the launch of the rocket ...

Fireworks light up DC skyline during Army parade Fireworks go off and music rings out during the celebration of the 250th Anniversary of the U.S. Army Grand Military Parade in Washington, D.C.

LED light therapy devices, including masks, have the potential to give you smoother, clearer skin. Read this before trying the skin-care trend. They look robotic — like a Stormtrooper’s ...