A thin beam of white light from an overhead projector goes into a prism, dispersing the colours into a rainbow. Turn on the projector. Hold the prism by the parallel flat faces, with one of the points ...

This means that the light leaving the prism is spread out into its different colours, a process called dispersion. This experiment is recorded as first being carried out by Isaac Newton ...

Dispersion is a familiar phenomenon—such as in rainbows or Isaac Newton's famous prism experiment. In conventional dispersion, white light is split into spectral colors by passing through a ...