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Photograph of a tabletop in a lab. It pictures a box of small viles containing pigrments. Various cups, jars, and brushes are placed around the workspace.
Protecting the Iridescent
Have you ever noticed shimmering rainbows floating along puddles in the road? This bright iridescence is created by oil floating on the water, and is caused by the way light interacts with itself as it travels through the oil film to the water below. We often refer to this phenomenon as interference colors (good explanation...