Geometric Model, L. Brill No. 144. Ser. 8 No. 25c, Catenoid


This white plaster model of a catenoid has a round flat base and top and is indented at the center. The catenoid is a minimal surface, and the surface of rotation of a curve called the catenary. The model shows lines of curvature (parallels and meridians) as well as diagonal asymptotic lines A black metal strip (Brill's Model 145 - 1985.112.104) fits over part of it. A paper tag reads: 144. Another paper tag reads: Catenoid. (/) Verl. v. L. Brill. 8. Ser. Nr. XXVc.

This is one of a series of models designed at the technical high school im Munich under the direction of Alerxander Brill. The series was first published in 1882.

This example of the model was exhibited at the Columbian Exposition, a world’s fair held in Chicago in 1893.


L. Brill, Catalog mathematischer Modelle. . ., Darmstadt: L. Brill,1892, p.17, 83-84.

Accession file.

G. Fischer, Mathematical Models,vol. I, p. 86 (Photo #90), vol. 2, pp. 43.

Date Made: 1892

Maker: L. Brill

Location: Currently not on view

Place Made: Germany: Hesse, Darmstadt

Subject: Mathematics


See more items in: Medicine and Science: Mathematics, Science & Mathematics


Exhibition Location:

Credit Line: Gift of Wesleyan University

Data Source: National Museum of American History

Id Number: 1985.0112.103Catalog Number: 1985.0112.103Accession Number: 1985.0112

Object Name: geometric modelgeometric model

Physical Description: plaster (overall material)Measurements: overall: 14.5 cm x 20 cm x 20 cm; 5 23/32 in x 7 7/8 in x 7 7/8 in


Record Id: nmah_693979

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