Now researchers in Japan have reported the world’s first continuous-wave UV-B semiconductor laser diode operating at room ...

Ultraviolet-B (UV-B) semiconductor lasers are highly sought for medical, biotechnology, and precision manufacturing ...

Researchers say chlorine in combination with ultraviolet light works to degrade deadly toxins created by harmful algae blooms in drinking water. Treatment plants use a combination of tools to keep ...

Minimal sun protection required for normal activity. Wear sunglasses on bright days. If outside for more than one hour, cover up and use sunscreen. Reflection off snow can nearly double UV strength, ...

Take precautions by covering up, and wearing a hat, sunglasses and sunscreen, especially if you will be outside for 30 minutes or more. Look for shade near midday when the sun is strongest.