Model by Richard P. Baker, Dual of Model 438, Baker #438a

Model by Richard P. Baker, Dual of Model 438, Baker #438a

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Description
This geometric model was constructed by Richard P. Baker in the early twentieth century when he was Associate Professor of Mathematics at the University of Iowa. Baker believed that models were essential for the teaching of many parts of mathematics and physics, and over 100 of his models are in the museum collections.
This painted wire structure includes six directional arrows. It has a paper tag that reads: No. 438* (/) Dual of 438. Although the inscription denotes the model as 438*, Baker's catalog lists it as 438a.
Baker built nine models to correspond to figures described by the German mathematician Eduard Study in his book on the geometry of dynamics (in his catalog, Baker shortened the title to Dynamen). Examples with numbers MA.211257.089 and MA.211257.090 (this one) relate to finding the sum of spherical wedges.
References:
Study, E., Geometrie Der Dynamen: Die Zusammensetzung Von Kräften Und Verwandte Gegenstände Der Geometrie Bearb., Leipzig: B.G. Teubner, 1903, esp. pp. 34-35.
Baker,R.P., Mathematical Models, Iowa City, 1931, p. 16.
Location
Currently not on view
Object Name
geometric model
date made
ca 1906-1935
maker
Baker, Richard P.
place made
United States: Iowa, Iowa City
Physical Description
metal (overall material)
beige (overall color)
soldered. (overall production method/technique)
Measurements
average spatial: 10.6 cm x 19.1 cm x 10.2 cm; 4 3/16 in x 7 17/32 in x 4 1/32 in
ID Number
MA.211257.090
accession number
211257
catalog number
211257.090
Credit Line
Gift of Frances E. Baker
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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