A deep blue organic light-emitting diode (OLED) developed by researchers at Science Tokyo operates on just a single 1.5 V, overcoming the high-voltage and color-purity problems that have long limited ...

• Roller pen with advanced fluid technology for unparalleled smoothness • 0.7 mm arrow tip for smooth and consistent writing • Waterproof ink protects against spills and increases document security • ...

Unless you’ve been living under a rock—in which case your sleep cycle is probably already pretty solid—chances are you’ve heard something about blue light. For the uninitiated, blue light, which ...

A white shirt, once stained with yellow underarm blotches or splashes of tomato juice, usually meets one of two fates: a punishing chemical bath or a slow exile to the back of the closet. But ...

If you're eyeing a low-blue-light PC monitor for late-night gaming sessions, you might want to wait for Lenovo's NaturaSynth concept, unveiled this week at IFA. I’m the deputy managing editor of the ...

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Sweat and food stains can ruin your favorite clothes. But bleaching agents such as hydrogen peroxide or dry-cleaning solvents that remove stains aren’t options for all fabrics, especially delicate ...

In this video, I explore creating a doodle using a glow-in-the-dark ink pen under UV light. The lines appear invisible until the light reveals them, making for a fun and experimental drawing session.

Blue light is part of the visible light spectrum. Exposure to blue light can affect sleep quality, alertness, hormone production, mood, and more. Blue light could also contribute to headaches, but ...