Max Bill Tripartite Unity 1948-49 Stainless steel 47 7/8 x 34 3/4 x 38 5/8 in. (114 x 88.3 x 98.2 cm) Museu de Arte Contemporânea da Universidade de São Paulo, Brazil Max Bill advocated an art based in logic and reason, in which the relationship between parts was calculated geometrically. Tripartite Unity is based on the Möbius strip, a ribbonlike geometric shape that is continuous like a circle; it may twist and turn, but it has only one surface and one edge. Bill fabricated the sculpture in steel to symbolize the connection between the forward-looking concrete art that he advocated and advances in science and industry. Tripartite Unity won the international sculpture prize at the first São Paulo Bienal in 1951, ensuring Bill's powerful influence on the Brazilian art scene.