Julius von Bismarck & Benjamin Maus, Round About Four Dimensions, aluminium, stainless steel, brass, polymers, electronics; 230 x 230 x 230 cm. Exhibition view: Exploring the Unknown, CERN, Switzerland, 2023. Photo © Julius von Bismarck. Round About Four Dimensions, represents a “hypercube”, “four-cube” or “tesseract”, often cited in mathematical and physical theories to illustrate concepts beyond three spatial dimensions. The kinetic sculpture wraps endlessly around itself.