Definitions from FreeDictionary.com:
- An optical instrument in which bits of glass, held loosely at the end of a rotating tube, are shown in continually changing symmetrical forms by reflection in two or more mirrors set at angles to each other.
- A continually changing pattern of shapes and colors.
- A continually shifting pattern, scene, or the like: The 1920s were a kaleidoscope of fads and fashions.
And here’s a cool video with kaleidoscope patterns and mellow music. Enjoy!