Black and White Light- Week 6

Black light refers to the Ultraviolet (UVA) light in the non-visible area of the light sequence. People can't view UV light. UV light has a component of radiation attached to it. Black light is useful to make an object glow in the dark. Objects that glow in the dark contain a special light producing quality called phosphors. When the radiation of UV black light interacts with these phosphors, a special white, bluish or greenish color appears from the object. So it is phosphors that create these colors that people can visualize.

http://boingboing.net/2009/01/22/black-light-tattoo-o.html












White light is produced in three main ways. First, when the light of the three primary colors(red, green, and blue) are interconnected, this produces white color light. Another way is create white light is to incorporate all the colors people can see in one place. Thirdly, a way to see white light is to create an object or element that requires an enormous amount of heat. For example, stars and the sun come across as white light because of the energy and collision of its anatomy which produces heat.

http://www.nasaimages.org/luna/servlet/detail/nasaNAS~9~9~58479~162323

My research was taken from these websites:
http://science.howstuffworks.com/innovation/everyday-innovations/black-light.htm

http://www.wisegeek.com/what-is-white-light.htm