Geometric Model by A. Harry Wheeler, Deltahedron (Third Stellation of the Icosahedron)
date: label: date made
content: 1926 12 21
name: label: maker
content: Wheeler, Albert Harry
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. A mark reads: 12-21-26 (/)A.
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
label: associated place
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.304723.038
label: accession number
content: 304723
label: catalog number
content: 304723.038
objectType: label: Object Name
content: Geometric Model
physicalDescription: label: Physical Description
content: paper (overall material)
label: Physical Description
content: tan (overall color)
label: Physical Description
content: cut and glued (overall production method/technique)
label: Measurements
content: average spatial: 7 cm x 7 cm x 7 cm; 2 3/4 in x 2 3/4 in x 2 3/4 in