Kaleidoscope based on Relativity, by M. C. Escher. Lithograph, 1953. Escher,
a 20th century Dutch artist famous for his etchings and illustrations, uses
painstaking perspective and geometry to create his art - challenging the
viewer to second guess what is physically possible.
In the lithograph "Relativity," the artist
demonstrates how our vision can play tricks on us. A room full of staircases
runs every which way - right side up, sideways and upside down.
