Mind-Bending iPad App Channels M.C. Escher | Co.Design | business + design
#Escher - This hat is based on the picture of the staircase. It ascends, but goes nowhere like the concept of the 3 twisted mobius strip.
Not a photograph, but one of my favorites! High and Low - M.C. Escher
Relativity - M.C. Escher
Knutselen met post-its
Techniek in het basisonderwijs - Lesideeën
Saw a Paper Roller Coaster at the Museum of Life & Science today. MUCH better than my cardboard & tube marble run.