Geometric Model of a Deltahedron (Third Stellation of the Icosahedron) by A. Harry Wheeler and His Students
date: label: date made
content: 1927
notes: label: Description
content: Polyhedra in which all faces are equilateral triangles are called deltahedra. The regular tetrahedron, octahedron, and icosahedron are the simplest deltahedra. It also is possible to replace each face of a regular dodecahedron with a “dimple” having five equilateral triangles as sides. This is a model of such a surface. It also may be considered as one of the polyhedra formed by extending the sides of—or stellating—a regular icosahedron.
label: Description
content: This deltahedron is folded from paper and held together entirely by hinged folds along the edges. Fifteen of the sixty faces have photographs of students of A. Harry Wheeler at North High School in Worcester, Massachusetts. All are boys. Another face reads: 1927 (/) Stanley H. Olson. A seventeenth face reads: Royal Cooper. Cooper is also shown on one of the sides with a photograph. There is a photograph of Lanley S. Olson, but not Stanley H. Olson. Yet another face of the model has a pencil mark that reads: June – 1927.
label: Description
content: Compare MA.304723.038, MA.304723.214, MA.304723.224, and MA.304723.308.
label: Description
content: Reference:
label: Description
content: Magnus J. Wenninger, <I>Polyhedron Models</I>, Cambridge: The University Press, 1971, p. 48.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Worcester
topic: label: Subject
content: Mathematics
label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Science & Mathematics
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content: Mathematical Association of America Objects
creditLine: label: Credit Line
content: Gift of Louise D. Campbell
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1979.0102.308
label: accession number
content: 1979.0102
label: catalog number
content: 1979.0102.308
objectType: label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 25.5 cm x 25.5 cm x 25.5 cm; 10 1/32 in x 10 1/32 in x 10 1/32 in