Protective filters can serve other purposes too. Some are simply clear pieces of glass that have no other function, but you can also get a UV filter, which is designed to block out unwanted ...

You may not recognize mistletoe unless it sports a red bow and is hanging over a doorway during the holiday season. You may not recognize The Great Purple Hairstreak, Atlides halesus. Its host plant ...

Ultraviolet radiation is invisible energy in the wavelength range from 100 to 400 nanometers (nm). A nanometer is one billionth of a meter. UV radiation has a shorter wavelength and is more energetic ...

Fortunately, a UV lamp helps speed up the dry time while setting your nail polish with a sturdy, long-lasting, glossy finish. It's a large reason gel manicures are one of the most popular nail ...