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Geometric Model, L. Brill No. 125. Ser. 2 No. 7, Third Order Surface with Four Double Points

Geometric Model, L. Brill No. 125. Ser. 2 No. 7, Third Order Surface with Four Double Points

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Description
This white plaster model is of a third order surface with four real conic double points. It has a circular or near-circular base, three graceful high points, and a curved, four-sided central piece attached by wires. The surface has various red and yellow lines.
Brill began to sell this model in 1877. It was among the first models he published, and was designed by J. Bacharach, studying at the technical institute in Munich under the direction of Felix Klein.
A paper tag reads: Fläche dritter Ordnung. (/) Verl. v. L. Brill. 2. Ser. Nr. VII.
This example of the model was exhibited at the Columbian Exposition, a world’s fair held in Chicago in 1893.
References:
L. Brill, Catalog mathematischer Modelle..., Darmstadt: L. Brill,1892, p.5, 79.
Fischer, Gerd, ed., Mathematical Models, vol. 1, Braunschweig / Wiesbaden: Vieweg, 1986, p. 16.
Fischer, Gerd, ed., Mathematical Models, vol. 2, Braunschweig / Wiesbaden: Vieweg, 1986, pp. 12-14.
Location
Currently not on view
Object Name
geometric model
geometric model
date made
1892
maker
L. Brill
place made
Germany: Hesse, Darmstadt
Physical Description
plaster (overall material)
Measurements
overall: 22.2 cm x 13 cm x 13 cm; 8 3/4 in x 5 1/8 in x 5 1/8 in
ID Number
1985.0112.089
catalog number
1985.0112.089
accession number
1985.0112
Credit Line
Gift of Wesleyan University
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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