Olafur Eliasson, Beauty, 1993, This art work is a wall of water which has a light projected onto it. In order to get the full effect of the art you have to be there and be able to move around it. The art shows how water diffracts light and shows the spectrum of colours that make up a white light. I guess the artist is trying to show the wonders of nature by recreating what would be a rainbow. It's bringing something you see only when the weather condition is perfect to a permanent state.