Model of a Scroll of Higher Order by Richard P. Baker (a Ruled Surface)
name: label: maker
content: Baker, Richard P.
notes: label: Description
content: This ruled surface has an unpainted brown wooden frame. The top and bottom are roughly in the shape of an H with curved sides. The two sides are like one another. The model is strung to represent one hyperboloid of one sheet in red 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 a hole in the bottom piece to hold the ends of a vertical line, but there is no vertical line. A typed paper label on the top reads: Scroll of higher order.
label: Description
content: Compare MA.211257.124 and MA.304722.33 – both are Baker models. 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, Iowa City
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.211257.124
label: accession number
content: 211257
label: catalog number
content: 211257.124
objectType: label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: thread (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: red (overall color)
label: Physical Description
content: darkwood stain (overall color)
label: Physical Description
content: yellow (overall color)
label: Physical Description
content: screwed and threaded. (overall production method/technique)
label: Measurements
content: average spatial: 35.5 cm x 35.3 cm x 36.2 cm; 13 31/32 in x 13 29/32 in x 14 1/4 in