"Crystal Loop" suspends 36 tetrahedra along a Moebius strip path through Roedovre Centrum's atrium. The Moebius topology creates a continuous loop with a twist-following the path returns to the starting point but flipped. Each tetrahedron orients according to its position on the strip, rotating through the twist to maintain the topological continuity. Coated stainless steel catches daylight, creating shadows and reflections that shift with sun angles and seasons. Time-controlled LED lighting extends visibility into evening hours. Frank's concept uses mathematical topology as architectural gesture; Reiner's geometric framework ensures precise tetrahedral positioning along the Moebius path. Part of Denmark's "Art in Architecture" program, the installation functions as both welcome arch and spatial landmark.
Research: Moebius strip geometry requires careful orientation tracking-each tetrahedron rotates 180 degrees over the loop's complete circuit. The 36-unit count divides the strip into equal segments, with rotation incrementing 5 degrees per tetrahedron (180 degrees/36). Computational modeling determined optimal suspension points in the atrium, balancing visual impact against structural constraints. The tetrahedral forms provide maximum surface area for light reflection while maintaining minimal visual weight. Suspension cables integrate with atrium infrastructure without compromising the atriums function.
Photography: Thilo Frank
