Geometric Model by A. Harry Wheeler, Symmetrical Spherical Triangles, Each Separated into Three Isoceles Spherical Triangles

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Description
This cut and folded tan paper model shows two spherical triangles symmetrically located on opposite side of a sphere (only a great circle of the sphere is shown). Both of the spherical triangles are divided into three isoceles spherical triangles.
The model is among those Wheeler dubbed collapsible.
Compare MA.304723.174.
Location
Currently not on view
date made
1916
1916 08 19
associated dates
1916 08 19 / 1916 08 19
unspecified
Wheeler, Albert Harry
maker
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
associated place
United States: Massachusetts, Worcester
Physical Description
paper (overall material)
tan (overall color)
cut and folded (overall production method/technique)
Measurements
average spatial: 3 cm x 5 cm x 5 cm; 1 3/16 in x 1 31/32 in x 1 31/32 in
ID Number
MA.304723.168
accession number
304723
catalog number
304723.168
Credit Line
Gift of Helen M. Wheeler
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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