When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with ...

Researchers have designed and tested ‘human-centric’ LEDs that emit different wavelengths of blue light depending on whether it’s daytime or nighttime, reducing the disruptive effect artificial light ...

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 ...

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 ...