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Catalog Data

Maker:
A. Harry Wheeler  Search this
Physical Description:
plastic (overall material)
Measurements:
overall: 7.7 cm x 7.7 cm x 7.7 cm; 3 1/32 in x 3 1/32 in x 3 1/32 in
Object Name:
Geometric Model
Place made:
United States: Massachusetts, Worcester
Date made:
1943
Description:
This cut and glued transparent plastic model shows two perpendicular spherical discs which might be considered to be representations of the equator and a meridian disc of a sphere. Another half-disc also is perpendicular to the equator and rotates on the line joining the poles. Two symmetric congruent spherical triangles are on the same side of the model as the half-disc and pass through what might be considered the North Pole. A sticker on the model reads: C, S, SA. A mark next to the reads: PT.
For the pattern for this model, see 1979.3002.084. It is dated 1943.
Location:
Currently not on view
Subject:
Mathematics  Search this
Credit Line:
Gift of Louise D. Campbell
ID Number:
1979.0102.217
Accession number:
1979.0102
Catalog number:
1979.0102.217
See more items in:
Medicine and Science: Mathematics
Science & Mathematics
Trigonometry
Spherical Trigonometry
Data Source:
National Museum of American History
GUID:
http://n2t.net/ark:/65665/ng49ca746a7-52e1-704b-e053-15f76fa0b4fa
EDAN-URL:
edanmdm:nmah_905117