Ruled Surface by Richard P. Baker, Quartic Surface Developable of a Twisted Cubic
name: label: maker
content: Richard P. Baker
notes: label: Description
content: This string model was constructed by Richard P. Baker, long on the faculty of the University of Iowa. He believed that models were essential for the teaching of many parts of mathematics and physics, and over one hundred of his models are in the museum collections.
label: Description
content: The blue yarn represents a curve called a twisted cubic, which cannot be contained in a plane. The tangent lines to the twisted cubic are represented by yellow threads. The mathematician Leonhard Euler had proved that the surface generated by these tangents can be flattened into a plane.
label: Description
content: A paper tag on the bottom of the frame reads: Quartic surface (/) developable of (/) a twisted cubic. It does not include Baker's name.
label: Description
content: Compare to 1985.0112.128 (a model by the German maker Ludwig Brill) and MA.211257.122 (a mirror image of this model, by Baker).
label: Location
content: Currently not on view
place: label: place made
content: United States: Iowa
topic: label: Subject
content: Mathematics
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 Brown University Department of Mathematics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304722.29
label: catalog number
content: 304722.29
label: accession number
content: 304722
objectType: label: Object Name
content: Geometric Model
label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: thread (overall material)
label: Measurements
content: overall: 36 cm x 36 cm x 36 cm; 14 3/16 in x 14 3/16 in x 14 3/16 in