Geometric Model, Hyperbolic Paraboloid
date: label: date made
content: ca 1900
name: label: maker
content: Eberbach
notes: label: Description
content: In the late nineteenth century, a few Americans began to make geometric models like those previously imported from Europe. This string model, made by the firm of Eberbach in Ann Arbor, Michigan, is very similar to one made in Germany at about the same time. The model is adjustable. When the metal triangles lie flat, the surface formed by the strings is a rhombus. If the tips of the triangles are raised, the threads form a surface called a hyperbolic paraboloid. The model came to the Smithsonian from the Department of Mathematics at the University of Michigan.
label: Description
content: For another sting model by Eberbach, see 1982.0795.28.
label: Location
content: Currently not on view
place: label: Place Made
content: United States: Michigan, Ann Arbor
topic: label: Subject
content: Mathematics
label: Subject
content: Education
label: Subject
content: Worlds Fair
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of the Department of Mathematics, The University of Michigan
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1982.0795.31
label: accession number
content: 1982.0795
label: catalog number
content: 1982.0795.31
objectType: label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: metal (frame material)
label: Physical Description
content: string (surface material)
label: Measurements
content: overall: 35.8 cm x 30.7 cm x 21.8 cm; 14 1/8 in x 12 1/16 in x 8 9/16 in