Artificial lighting systems are transitioning from incandescent to compact fluorescent lamp (CFL) and light-emitting diode (LED) bulbs in response to the U.S. Energy Independence and Security Act and ...

A bare bulb, no elaborate lampshade or anything. Humble as it may look, though, this light bulb is very famous indeed. It was fitted in a fire station in 1901, created by the Shelby Electric Company.

"One of the great things about ZEUS is it's not just one big laser hammer, but you can split the light into multiple beams," said Franklin Dollar, professor of physics and astronomy at the ...

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A mysterious beam of light had thousands of Arizonans looking up on Friday. Was it an asteroid? Aliens coming in for a closer look? Experts think the answer is more down to Earth.

Abstract: We report on a novel waveguide-based polarization beam ... laser in lithium niobate (LiNbO3) crystals. This monolithic PBS is composed of tailored waveguide configurations with different ...

Strictly, the theory applies only to a plane wave of infinite aperture. In this paper the theory is extended to beams of finite aperture, which may be initially convergent or divergent.

Support from readers like you keeps The Journal open. You are visiting us because we have something you value. Independent, unbiased news that tells the truth. Advertising revenue goes some way to ...

Take control of your aging skin with this FDA-cleared laser that's safe for at-home use. It uses the power of cold laser beams to penetrate ... like the knees. The light gently and painlessly ...

Thousands of magnets of different varieties and sizes are used to direct the beams around the accelerator. These include 1232 dipole magnets, 15 metres in length, which bend the beams, and 392 ...