Exposing a sweat-like stain on cotton (left image) to a blue LED light for 10 minutes significantly removed the yellow color (right image). Sweat and food stains can ruin your favorite clothes. But ...
Climate Compass on MSNOpinion
LED blue light risk: The health warning lighting brands don't have to share
When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with ...
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, ...
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