Book excerpt: For hundreds of years, kaleidoscopes -- wonderful combinations of science, art, & mathematics -- have changed how we see the world. This complete kit contains everything you need to construct your very own sight-shifter, including the tube, eye piece, mirrors, & beads for viewing, as well as a 32-page book with complete instructions. Contents of the book: Introduction; Kaleidoscopes as Art; Types of Scopes; Kaleidoscopes & Meditation; & How to Build Your Own Kaleidoscope. Illustrations. Compact box.