Geometric Model, L. Brill No. 76. Ser. 9 No. 9, Fourth Order Surface
date: label: date made
content: 1892
name: label: maker
content: L. Brill
notes: label: Description
content: The design of this plaster model follows one built Edward Kummer (1810-1893), a mathematics professor in Berlin. Examples were first published by Brill in 1883.
label: Description
content: The model represents a cross-cap, the self-intersection of a one-sided surface. It is a Dupin cyclide with a double curve, the self-intersection of the surface with two different tangential planes. A torn paper tag reads: [. . .}6. A second tag reads: Fl. 4. Ord. mit 1 Doppelgeraden. (/) Verl. v. L. Brill. 9. Ser. Nr. 9.
label: Description
content: This example was exhibited at the Columbian Exposition, a world’s fair held in Chicago in 1893.
label: Description
content: References:
label: Description
content: L. Brill, <I>Catalog mathematischer Modelle. . .</I>, Darmstadt: L. Brill, 1892, p. 19.
label: Description
content: Fischer, Gerd, ed., <I>Mathematical Models</I>, vol. 1, Braunschweig / Wiesbaden: Vieweg, 1986, p. 108.
label: Description
content: Fischer, Gerd, ed., <I>Mathematical Models</I>, vol. 2, Braunschweig / Wiesbaden: Vieweg, 1986, pp. 63-64.
label: Description
content: Groeningen University website, accessed September 2, 2019.
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: 1985.0112.056
label: catalog number
content: 1985.0112.056
label: accession number
content: 1985.0112
objectType: label: Object Name
content: geometric model
label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: plaster (overall material)
label: Measurements
content: overall: 3 cm x 9.5 cm x 9.5 cm; 1 3/16 in x 3 3/4 in x 3 3/4 in