Geometric Model by A. Harry Wheeler, Pentagonal Dodecahedron

Description:

This model represents the union fg two equal pyramids erected on pentagrams and facing opposite directions. Its faces include ten small triangles on the top, ten small triangles on the bottom, ten irregular quadrilaterals, and twenty larger triangles. One quadrilateral and two of the large triangles meet at each of the tenpoints around the side. Several faces are coplanar - five of the quadrilaterals are in one plane, five in another plane, and the triangles are four to a plane, This reduces the faces to 2 + 10 or twelve.

A mark on the model reads: Pentagonal (/) Dodecahedron (/) Oct. 31-1935.

Date Made: 1935 10 31

Maker: Wheeler, Albert Harry

Location: Currently not on view

Place Made: United States: Massachusetts, Worcester

Subject: Mathematics

Subject:

See more items in: Medicine and Science: Mathematics, Science & Mathematics

Exhibition:

Exhibition Location:

Credit Line: Gift of Helen M. Wheeler

Data Source: National Museum of American History

Id Number: MA.304723.640Accession Number: 304723Catalog Number: 304723.640

Object Name: Geometric Model

Physical Description: paper (overall material)tan (overall color)cut and glued (overall production method/technique)Measurements: average spatial: 8 cm x 17 cm x 17.7 cm; 3 5/32 in x 6 11/16 in x 6 31/32 in

Guid: http://n2t.net/ark:/65665/ng49ca746b4-f0ce-704b-e053-15f76fa0b4fa

Record Id: nmah_1073063

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