Black Light Theatre
The principle of black light theatre is an optical trick, which takes advantage of the imperfection of the human eye: the eye cannot distinguish between black on black. In the theatre the trick is in fact very simple: the audience cannot see an actor dressed in black against a black background. Props operated by actors dressed in black are able to move independently before our very eyes. Inanimate objects become participants in the drama, attaining equal status with the live actors.