While it's no replacement for either computer, the new device is a powerful alternative for addressing some very practical challenges. Reading time 3 minutes In a world of ever-improving computing ...

A new optical device allows researchers to generate and switch between two stable, donut-shaped light patterns called skyrmions. These light vortices hold their shape even when disturbed, making them ...

Matter has finally brought the price of HomeKit lights down. This RGBCW smart bulb offers 16 million colors and rock-solid connection for under $10.

A new metasurface design lets light of different spins bend, focus, and behave independently—while staying sharp across many colors. The trick combines two geometric phase effects so each spin channel ...

The SunBooster mounts onto a laptop or monitor to hopefully give you a dose of energy when you can't see the sun.

If you wear prescription glasses, you've likely been asked whether you'd like your lenses to have a blue light coating before purchase. Or, if you spend your days working on the computer or staring at ...

Automating screen brightness on Windows based on time of day or battery level saves your eyes and extends battery life.

Before the advent of computers, traffic lights were a marvel of mechanical and electromechanical engineering, utilizing timers, relays, and human intervention to manage bustling city intersections.