Model of a Twisted Polygon by Richard P. Baker, Baker #131
date: label: date made
content: ca 1906-1935
name: label: maker
content: Baker, Richard P.
notes: label: Description
content: A twisted polygon is a closed broken line whose sides do not all lie in the same plane. This model of such a figure is made from painted 1/8 inch steel wire. The range is over a quarter of a circle. According to Baker’s catalog description, the model includes “osculating and normal planes and polar lines in penultimate position.” The penultimate position is the one next to the rightmost in the image, the osculating plane is represented by two short wires, and the normal plane at this point is indicated by lower wires approaching the pole at the back.
label: Description
content: A paper tag reads: No. 131 (/) Twisted polygon: diff. geom.
label: Description
content: The model sold for $2.50.
label: Description
content: References:
label: Description
content: R. P. Baker, <I>Mathematical Models</I>, Iowa City, Iowa, 1931, p. 11.
label: Description
content: Richard P. Baker Papers, University Archives, University of Iowa, Iowa City, Iowa.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Frances E. Baker
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.211257.019
label: accession number
content: 211257
label: catalog number
content: 211257.019
objectType: label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: white (overall color)
label: Physical Description
content: soldered (overall production method/technique)
label: Measurements
content: average spatial: 6.2 cm x 21.2 cm x 15 cm; 2 7/16 in x 8 11/32 in x 5 29/32 in