In Wiertz and Verbeek's kinetic, kaleidoscopic opus Keep on Turning (1974, 3 min, 16mm, sound) cubes convey, rotate and shift in tandem.

Excerpt from Dr. Malcom J Backer's Hyperexpiology Companion [revision 2b]: "...the destructive system is self replicating and self propelling ....

The art of M.C. Escher (Dutch printmaker) never fails to facinate and astound. M.C. Escher: Sky and Water 1/M.C. Escher : l'air et l'eau 1 mixes...