Geometric Model by A. Harry Wheeler, One-Sided Polyhedron
date: label: date made
content: 1939?
name: label: maker
content: Wheeler, Albert Harry
notes: label: Description
content: This cut and glued brown plaster model can be considered as the union of five faceted octahedra or tetrahemihexahedra (surfaces like MA.304723.580). One is at the center and four others around it, with sixteen triangular facets and twelve larger triangular sides showing. Several sides are coplanar. A tag on the model reads: 706 (/) P. Another tag reads: M 65. A small tag in the box with the model reads: 7-19-39, suggesting a date.
label: Description
content: Wheeler described the model as having eighteen vertices (e), forty-eight edges (k), and twenty-seven faces (f). This gives an Euler characteristic of e – k + f = -3.
label: Description
content: Compare models MA.304723.415 and MA.304723.391. They are not identical.
label: Description
content: Reference:
label: Description
content: A.H. Wheeler, <I>Catalog of Models</I>, A. H. Wheeler Papers, Mathematics Collections, National Museum of American History.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Worcester
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 Helen M. Wheeler
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304723.415
label: accession number
content: 304723
label: catalog number
content: 304723.415
objectType: label: Object Name
content: Geometric Model
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: brown (overall color)
label: Physical Description
content: cut and glued (overall production method/technique)
label: Measurements
content: average spatial: 11 cm x 14 cm x 12 cm; 4 11/32 in x 5 1/2 in x 4 23/32 in