Object Details
maker
Wheeler, Albert Harry
Description
The angle between two great circles on a sphere is defined to be equal to the angle between the lines tangent to the circles at their point of intersection. This cut and folded tan paper model of a sphere shows two intersecting great circles and tangents to them. It is among the models Wheeler dubbed collapsible.
A mark on the model reads: Spherical Angle (/) and its (/) Measure (/) A. Harry Wheeler (/) 1916. Another mark reads: A. Harry Wheeler (/) 1916.
Location
Currently not on view
Credit Line
Gift of Helen M. Wheeler
date made
1916
ID Number
MA.304723.156
accession number
304723
catalog number
304723.156
Object Name
Geometric Model
Physical Description
paper (overall material)
tan (overall color)
cut and folded (overall production method/technique)
Measurements
average spatial: 10 cm x 10.7 cm x 10 cm; 3 15/16 in x 4 7/32 in x 3 15/16 in
place made
United States: Massachusetts, Worcester
See more items in
Medicine and Science: Mathematics
Trigonometry
Science & Mathematics
Spherical Trigonometry
Data Source
National Museum of American History
Subject
Mathematics
Link to Original Record
Record ID
nmah_1066407