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Geometric Model, L. Brill No. 47. Ser. 7 No. 18, Third Order Surface with One Double Point

Geometric Model, L. Brill No. 47. Ser. 7 No. 18, Third Order Surface with One Double Point

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Description
This white plaster model of a third order surface has a square base with two high peaks and a lower peak that extends toward a middle space between the two higher ones (in this example, it does not reach that point). Two lines parallel to the base and to one another, as well as a third curve that joins these lines. A paper tag on the base reads: 47. Another paper tag reads: Fl. 3. Ord. mit unipl. Knotenp [...] [/] Verl. v. L. Brill. 7. Ser. [...].
This model, along with all the models of Series 7, is on the design of Carl Rodenberg of the technical high school in Munich.. It was first published by Brill in 1881.
The object was exhibited at the German Educational Exhibit at the Columbian Exposition, a World’s Fair held in Chicago in 1893. It there was purchased by Wesleyan University in Connecticut, and subsequently was donated to the Smithsonian.
References:
L. Brill, Catalog mathematischer Modelle..., Darmstadt: L. Brill,1892, p.14, 62-63.
Accession file.
G. Fischer, Mathematical Models, Braunschweig: Vieweg, 1986, vol. 1, p. 30, vol. 2, pp. 12-14.
Location
Currently not on view
Object Name
geometric model
date made
1892
maker
L. Brill
place made
Germany: Hesse, Darmstadt
Physical Description
paper (overall material)
plaster (overall material)
Measurements
overall: 15 cm x 12 cm x 12 cm; 5 29/32 in x 4 23/32 in x 4 23/32 in
ID Number
1985.0112.038
catalog number
1985.0112.038
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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