Ruled Surface by Richard P. Baker, Scroll of Higher Order
date: label: date made
content: ca 1906-1935
name: label: maker
content: Richard P. Baker
notes: label: Description
content: This ruled surface has a wooden frame painted black. The frame has two horseshoe-shaped pieces on each of two opposite sides. These have holes which are strung to y-shaped pieces on the top and bottom. The lower surface has blue threads, the upper one red threads. A pink yarn down the middle is tangent to both ruled surfaces.
label: Description
content: Some American geometric models copied those of European makers. This is one of them. The maker, Richard P. Baker of the University of Iowa, labeled another example of it: Scroll of higher order. The model closely resembles a smaller model sold by the German maker Ludwig Brill as a ruled surface with self-intersections forming a line, with four pinch points on the line. For an example of the German model, see 1985.0112.130. For examples of Baker’s model, see MA.304722.30 and MA.211257.123.
label: Location
content: Currently not on view
place: label: place made
content: United States: Iowa
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 Brown University Department of Mathematics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304722.30
label: catalog number
content: 304722.30
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: 34.7 cm x 36.5 cm x 34.7 cm; 13 21/32 in x 14 3/8 in x 13 21/32 in