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 ...
* Most UVA blacklights come in fluorescent form. A small amount of mercury added to the tube emits photons in the UV range, but a special coating makes it visible again. Enough light still gets ...
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 ...
BRISTOL, R.I. (WPRI) — A technology that uses a special kind of light to fight airborne illnesses is being tested in Bristol. Roger Williams University is partnering with the technology firm ...