Geometric Model, L. Brill No. 138. Ser. 8 No. 26c, Ellipsoid

Geometric Model, L. Brill No. 138. Ser. 8 No. 26c, Ellipsoid

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Description
This white plaster model is one of a series copied from originals at the technical high school in Munich, under the direction of Alexander Brill. It represents a rotational ellipsoid that can be unwound on the surface of a screw (for the a model of the screw, see 1985.097 - Brill #137). A grid of lines is indicated. This example is damaged and has no maker's stickers.
The ;model follows ideas of E. Bour. The series was first publishedby Brill in 1882.
This example of the model 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. 17, 82.
Accession file.
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: 2.5 cm x 9 cm x 9 cm; 31/32 in x 3 17/32 in x 3 17/32 in
ID Number
1985.0112.098
catalog number
1985.0112.098
accession number
1985.0112
Credit Line
Gift of Wesleyan University
subject
Mathematics
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Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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