Transforming Tetrahedron

Transforming in both shape and color, the Tetrahedron begins as an orange three-sided pyramid. It then unfolds into a 12-ointed star with a five-meter span and finally folds into a second, blue tetrahedron.

Movie: http://www.hoberman.com/portfolio/transformingtetrahedron.php?myNum=27&mytext=Transforming+Tetrahedron&myrollovertext=%3Cu%3ETransforming+Tetrahedron%3C%2Fu%3E&category=&projectname=Transforming+Tetrahedron