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Artist Stacy Speyer began making this series of geometric metal sculptures as an artist-in-residence at the Exploratorium. The Greek term combines ‘poly’ meaning many and ‘hedra’ for faces or sides; hence, polyhedra are three-dimensional shapes made of polygon faces joined at the edges and corners. Speyer created these three polyhedra—a dodecahedron, a hexahedron, and a rhombic triacontahedron, by bending the corners (vertices), bolting them to the edges of each polyhedron, and leaving the faces open. See “Mathematics: Modern and Vintage” is on display post-security in Terminal 2 and online at: https://bit.ly/MathAtSFO This image was posted on October 04, 2021.