When sunlight hits clouds or other atmospheric particles, it scatters and becomes diffuse light. Unlike direct sunlight, ...

When millions of people turn off their lights for Earth Hour each year, something remarkable happens in the night sky above ...

I have to admit, this week's What's Up With That? query truly had me stumped. But it turns out blue streetlights are explainable, if not ideal.

Better than Pro Mist! Check out the photos I took with my favorite diffusion filter, the Moment CineBloom (and save 33% if ...

The best at-home, FDA-approved red light therapy tools and panels for the face and body in 2025, according to editors, testers, and dermatologists.

An integrated light guide plate (LGP) with a functional structure for a longer diffusion length to decrease the thickness was proposed and designed for the large area direct-type LED backlight unit ...

With the ability to detect and amplify extremely weak electromagnetic signals without adding additional noise, masers have ...