Addicted I am, I tell you, to complementary colors. If you put water in a jug and add green and red food coloring (to the same water, in the same jug) and pour it from one receptacle to another the illusion (light and refraction) is that it is green turning into red. It's really red-green reacting to the light. Cool, huh?
All photographs shown on Utata are stored on flickr. This photo and text © Catherine Jamieson.