Geometric Model, L. Brill No. 104. Ser. 5 No. 18a, Ellipsoid with Stand
date: label: date made
content: 1892
name: label: maker
content: L. Brill
notes: label: Description
content: In 1880, Ludwig Brill published two models of surfaces of rotation of an ellipse that had been designed by A. von Braunmühl (1853-1908), a student and later teacher of mathematics in Munich who would become a well-known historian of mathematics. In this one, the ellipse is rotated about its longer axis; the resulting surface is known as a prolate spheroid or prolate ellipsoid of revolution. A tag on the model reads: 106. A pencil mark on the elliptical wooden base reads: V.XVIII.a. Model V.XVIIIa is listed as model 104 in the Brill 1892 catalog, and it seems likely that the number tag on the model is erroneous. This example was exhibited at the Columbian Exposition held in Chicago in 1893 and later acquired by Wesleyan University.
label: Description
content: The model is in poor condition.
label: Description
content: Reference:
label: Description
content: L. Brill, <I>Catalog mathematischer Modelle. . .</I>, Darmstadt: L. Brill,1892, p.12, 77-78.
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: 1985.0112.075
label: catalog number
content: 1985.0112.075
label: accession number
content: 1985.0112
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: plaster (overall material)
label: Measurements
content: overall: 8 cm x 12.6 cm x 8 cm; 3 5/32 in x 4 31/32 in x 3 5/32 in