Johann Wolfgang von Goethe's Prism

Origin
Goethe was one of the most well known writers of his time, becoming famous by the age of twenty five for his works, and only gained popularity as the years went on. A painter and politician as well, Goethe divulged himself in many projects and areas of interest, and in 1810 wrote his treatise on color, entitled Zur Farbenlehre, or Theory of Colours, as a direct argument against Newton's Opticks. In it, he detailed his views on the nature and perception of colours, and contains some of the earliest published evidence of phenomena such as 'chromatic aberration.'

Effects
Shining light through the prism makes whatever objects caught in the beam to lose their ability to reflect light accurately - depending on how long the beam is held, this can range from simply blurring the object to making it visually disappear.

Inspired the Disney film "Fantasia".