Light pollution reduction (LPR) filters function by selectively blocking specific wavelengths of light emitted by certain artificial sources, such as high-pressure sodium streetlights, which ...

First predicted by Einstein more than a century ago, lasers have shaped our modern technological landscape. But how do they work? When you purchase through links on our site, we may earn an affiliate ...

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 ...

Michael Freeman is a founder of The Skin Centre, a private dermatology practice on the Gold Coast, Queensland. The centre has developed its own range of skincare products. Blue light is part of the ...