Object Details
maker
Baker, Richard P.
Description
This wire model includes five vertical circular rings, each joined by three symmetric line segments to its own inner, smaller, circular ring. All of these parts are painted black. Like endpoints of the segments are joined at both ends to form six larger circles, painted red. A tag on the model reads: No. 533 Anchor Ring. The term anchor ring often was used for a torus (a donut-shaped surface), and this appears to be a skeleton model of a solid torus.
Reference:
R. P. Baker, Mathematical Models, Iowa City, Iowa, 1931, p. 5.
Location
Currently not on view
Credit Line
Gift of Frances E. Baker
date made
ca 1930s
ID Number
MA.211257.109
accession number
211257
catalog number
211257.109
Object Name
geometric model
Physical Description
metal (overall material)
red (overall color)
blue (overall color)
soldered (overall production method/technique)
Measurements
average spatial: 9 cm x 28 cm x 27.3 cm; 3 17/32 in x 11 1/32 in x 10 3/4 in
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
Subject
Mathematics
Link to Original Record
Record ID
nmah_1087397