Geometric Models by A. Harry Wheeler, Pentagonal Dodecahedra

Geometric Models by A. Harry Wheeler, Pentagonal Dodecahedra

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Description
These elven cut, folded, and glued models are among those Wheeler included in his “subgroup pentagonal dodecahedra.” They are all made from transparent green plastic and paper. The models are:
1. Six paper tetrahedra arranged an open ring of six plastic arrow-shaped irregular quadrilaterals. One face of each tetrahedron is attached to the tip of a quadrilateral. A mark reads: Model (/) S4.
Compare (2).
2. Six paper tetrahedra arranged around an open ring of six plastic arrow-shaped quadrilaterals. One face of each tetrahedron is attached to a back corner on each quadrilateral. A mark reads: Pentagonal (/) Dodecahedron (/) Jan 22-23 (/) 1936.
3. Twelve paper dodecahedra arranged around an open ring of six plastic arrow-shaped irregular quadrilaterals. One face of each tetrahedron is attached to a back corner of each quadrilateral. The tetrahedral are paired. A mark reads: Pentagonal (/) Dodecahedron (/) Jan 2-5 (/) 1935.
4. Two six-sided paper figures, attached to the top and bottom of a ring of six irregular quadrilaterals, closing it off. A mark in pencil reads: Pentagonal (/) Dodecahedron (/) Dec 10 1933 (/) Feb 1 (/) 1934.
5. A ring of five plastic regular pentagons, closed off at each end by three joined paper pentagonal prisms. A mark reads: S16. Another mark reads: Pentagonal (/) Dodecahedron (/) Jan – 16-19 (/) 1936.
6. A ring of six plastic regular pentagons. Three paper irregular pentahedra close off each end. A mark reads: Pentagonal (/) Dodecahedron (/) Jan 14-19-1936.
7. A ring of six plastic regular pentagons. Three irregular pentahedra close off each end. A mark reads: Pentagonal (/) Dodecahedron (/) Jan 18-19 (/) 1936. The pentahedra point more toward the center than in (6).
8. A two-pointed model comprised of six plastic isosceles triangles arranged as in the sides of an antiprism and two paper hexahedra at the two ends. The hexahedra both have three small triangular faces that face inward and three larger triangular faces that form the outer points. A mark reads: Pentagonal (/) Dodecahedron (/) Dec-10-1925 (/) Feb-1-1936.
9. Two three-faced paper figures attached on opposite ends of six plastic regular pentagons arranged in a ring. The paper faces are irregular quadrilaterals, each with part of two bottom edges glued to edges of the ring of pentagons. A mark reads: Se31. Another mark reads: Pentagonal (/) Dodecahedron (/) Jan 5 – Feb 10, 1936.
10. A ring of six plastic regular pentagons has identical pointed figures attached to both ends. Both of these figures have four points with three triangular sides each as well as three facets with triangular sides. Many of these sides are coplanar. A mark reads: Pentagonal (/) Dodecahedron (/) Feb-9-14-1936.
11. A ring of six plastic irregular quadrilaterals has identical pointed paper figures attached to both edges. The long points have three quadrilateral sides. Around each base of the paper figures are three eight-sided figures. Many sides are coplanar, both with the plastic core and with one another. A mark reads: Pentagonal (/) Dodecahedron (/) Nov 12, 1936 (/) Nov 16, 1936.
Location
Currently not on view
Object Name
Geometric Models
date made
1935-1936
maker
Wheeler, Albert Harry
associated place
United States: Massachusetts, Worcester
Physical Description
paper (overall material)
plastic (overall material)
tan (overall color)
green (overall color)
cut and glued (overall production method/technique)
Measurements
average spatial: 8.5 cm x 28 cm x 23 cm; 3 11/32 in x 11 1/32 in x 9 1/16 in
ID Number
1979.3002.007
catalog number
1979.3002.007
nonaccession number
1979.3002
Credit Line
Gift of Louise D. Campbell
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Data Source
National Museum of American History
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