Cool Black Light Physics Ideas. Web a black light is useful as the light waves are shorter, higher energy and are very quickly reflected by the piece, thereby creating the image of the piece “glowing”. Web light, electromagnetic radiation that can be detected by the human eye.
The name wood's lamp honors robert williams wood, the inventor of glass uv filters. The reason these are called black is that if you look at the actual bulb it does not seem very bright (sort of a dim violet color), and if you put a black light in a dark room it really does not brighten it very much.the room remains almost black. There is no such thing as a “colorless” visual field for observers:
