"The stability of many polyhedral structures, their compactness of space-packing, their economy of surface with respect to enclosed volume and their facility of extension render them advantageous for mass production and for diverse applications in architecture and engineering," wrote Hecker in a 1970 essay entitled "The Geometry of my Polyhedral Sculpture." Photo by Zvi Hecker. Photo 4 of 5 in Geometric Housing Complex in Jerusalem by Diana Budds

Geometric Housing Complex in Jerusalem

4 of 5

"The stability of many polyhedral structures, their compactness of space-packing, their economy of surface with respect to enclosed volume and their facility of extension render them advantageous for mass production and for diverse applications in architecture and engineering," wrote Hecker in a 1970 essay entitled "The Geometry of my Polyhedral Sculpture." Photo by Zvi Hecker.