National Museum of American History
Geometric Model by A. Harry Wheeler, Polar Spherical Triangles (incomplete)
Wheeler, Albert Harry
This cut and glued clear plastic model is one of several in which A. Harry Wheeler illustrated properties of polar spherical triangles. A sticker on it reads: PT. An inner polar triangle and one arc of an outer one survives – two faces are missing. The vertices are unlabeled. The model is undated and has no Wheeler number.
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