Celebrity manicurists explain the difference between various devices, and share their top tips for choosing a reliable one ...

Solar cells are subjected to a lot of harmful ultraviolet light, as they're typically placed for maximum sunlight exposure. A ...

Researchers found that nanocellulose films treated with red onion dye blocked 99.9% of UV radiation, outperforming commercial ...

-Sapphire glass has a large dispersion, which means that light of different wavelengths will experience significant ...