Geometric Model by A . Harry Wheeler, Three Great Circles on a Sphere

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Description
This warped transparent plastic model consists of two circular rings and a circular disc. These intersect to form three great circles on a sphere. A sticker on the model reads: 3GC.
Compare 1979.0102.215, 1979.0102.344, MA.304723.719, MA.304723.720, MA.304723.723, and MA.304723.727.
Location
Currently not on view
place made
United States: Massachusetts, Worcester
Physical Description
plastic (overall material)
Measurements
overall: 10.2 cm x 7.5 cm x 7 cm; 4 1/32 in x 2 15/16 in x 2 3/4 in
ID Number
1979.0102.215
accession number
1979.0102
catalog number
1979.0102.215
Credit Line
Gift of Louise D. Campbell
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Trigonometry
Spherical Trigonometry
Data Source
National Museum of American History, Kenneth E. Behring Center

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