Description: The above art work contains the following layers, from rear to front: a fluorescent light, a rotating polaroid, a diffuser, a collage of optically active materials, and a polarized sheet. The POLAGE consists of the collage and the polaroid sheet mounted together. When the rear polaroid rotates, the picture changes between a butterfly and a cocoon (as shown in the photographs above), while the caterpiller at the lower right changes color.
