Great Dodecahedron
notes: label: Description
content: This model of a great dodecahedron is made of metal painted gray. A rod from one of the vertices extends down to a round wooden stand painted black. No maker's marks are on the model or the base.
label: Description
content: This polyhedron has twelve identical intersecting pentagonal planes. The twelve vertices are also identical. The surface is one of two first described by Johannes Kepler in 1619, and now known as a Kepler-Poinsot solid.
label: Description
content: Plastic and paper versions of this surface, made by A. Harry Wheeler, are also in the NMAH collections.
label: Description
content: Compare models MA.304723.26, MA.304722.27, and MA.304722.28.
label: Description
content: Reference:
label: Description
content: H. M. Cundy and A. P. Rollet, <I>Mathematical Models</I>, Oxford: The Clarendon Press, 1961.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Brown University Department of Mathematics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304722.27
label: catalog number
content: 304722.27
label: accession number
content: 304722
objectType: label: Object Name
content: Geometric Model
label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 27 cm x 13.5 cm x 13.5 cm; 10 5/8 in x 5 5/16 in x 5 5/16 in