Ruled Surface by Richard P. Baker, Scroll of Higher Order
name: label: maker
content: Richard P. Baker
notes: label: Description
content: This ruled surface has a wooden frame painted black. The top and bottom are roughly in the shape of an H with curved sides. Two sides are like one another. The model is strung to represent one hyperboloid of one sheet in blue threads and another in yellow threads. The two hyperboloids do not intersect nor are they twisted. Their axes are perpendicular (but not in the same plane). The model has holes on the top and bottom pieces to hold the ends of a vertical line, but there is no vertical line. The model has no maker's marks, but the style is that of Richard P. Baker of the University of Iowa.
label: Description
content: Compare MA.211257.124 (another Baker model) and MA.304722.33. A Brill model with number 1985.0112.132 and a Baker model with number MA.211257.128 are similar but the ruled surfaces have been twisted and there is a vertical line at the center of both.
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.304722.33
label: catalog number
content: 304722.33
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 35.7 cm x 35.7 cm; 14 3/16 in x 14 1/16 in x 14 1/16 in