An illusion using the magic of substances that fluoresce when exposed to ultraviolet light won Joe Switzer a prize at the 1934 Pacific Coast Association of Magicians Convention.
The exceeded food causes the growth of algae, bacteria, parasites, viruses and other microorganisms, making the water less clear and full of bad odors. A UV light can clean the water up, keeping a ...
The Lewisburg Area Joint Sewer Authority intends to change its disinfection process from chlorine gas to ultraviolet light, a move that it says would be safer for both people and the environment. The ...
Light therapy for psoriasis is an effective treatment. Ultraviolet (UV) light therapy (phototherapy) involves exposing the skin to controlled amounts of UV radiation similar to that from the sun. It ...