Polymatech Electronics develops compound semiconductor and LED technologies for industrial and specialty applications with operations in India and Singapore. The company focuses on energy-efficient, ...
It’s hard to believe that the first blue LED didn’t arrive until 1993. They look simple, but looks are deceiving (Fig. 1). 1. Image showing a blue InGaN-based LED with gold wire contacts (0.4 × 0.4 mm ...
Every product on this page was chosen by a Harper's BAZAAR editor. We may earn commission on some of the items you choose to buy. The FDA-approved technology has taken off in the at-home tool world ...
Sonequa Martin-Green, Bridget Moynahan and Donnie Wahlberg in "Boston Blue." (John Medland/CBS) To paraphrase Mark Twain, reports of the death of “Blue Bloods” and the end of the Reagan family are ...
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What It Really Took to Make the First Blue LED
Making a blue LED was once thought impossible. Unlike red or green, producing blue light required a semiconductor with a much larger energy band gap. For decades, the right material didn’t exist—or at ...
Forget harsh bleach—scientists have discovered that powerful blue LED light can erase yellow stains from sweat, food, and oils without harming delicate fabrics like silk. By harnessing oxygen in the ...
Not to sound like a TV commercial or anything, but … how often have you had to throw out white shirts because of unsightly yellow underarm stains? Well, those stains may not be a problem any longer, ...
Researchers hope the technique could offer a more environmentally friendly approach to cleaning up messy clothing. By Jacey Fortin A crisp white shirt can be a dangerous thing. It seems to invite a ...
It may not be great on the eyes, but it could be a new way to take care of those pit stains. By Andrew Paul Published Sep 3, 2025 10:00 AM EDT Get the Popular Science daily newsletter💡 Breakthroughs, ...
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