Geometric Model, L. Brill No. 136a. Ser. 10.2 No. 34,Two Strips for Surfaces of Rotation of Constant Negative Curvature
date: label: date made
content: 1892
name: label: maker
content: L. Brill
notes: label: Description
content: These two silver-colored flat strips of flexible sheet brass curve inward at the center. They have constant negative curvature equal to the curvature of surfaces with Brill's numbers 133 (1985.0112.093), 135 (1985.0112.094, and 136 (1985.0112.095).
label: Description
content: The models have no maker's marks. the dimensions given are for each model.
label: Description
content: The series, developed at the technical high school in Munch under the direction of Alexander Brill, was first published in 1883.
label: Description
content: These examples were exhibited at the German Educational Exhibit at the Columbian Exposition, a World’s Fair held in Chicago in 1893. They were purchased by Wesleyan University in Connecticut, and subsequently was donated to the Smithsonian.
label: Description
content: References:
label: Description
content: L. Brill, <I>Catalog mathematischer Modelle. . .</I>, Darmstadt: L. Brill,1892, p. 22, 82.
label: Description
content: Accession file.
label: Location
content: Currently not on view
place: label: place made
content: Germany: Hesse, Darmstadt
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 Wesleyan University
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1985.0112.096
label: catalog number
content: 1985.0112.096
label: accession number
content: 1985.0112
objectType: label: Object Name
content: geometric model
label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 7.5 cm x 18 cm x 13.5 cm; 2 15/16 in x 7 3/32 in x 5 5/16 in