Geometric Model, L. Brill No. 231, Ser. 21 No. 1, Ruled Surface, Space Curve of Fourth Order
Geometric Model, L. Brill No. 231, Ser. 21 No. 1, Ruled Surface, Space Curve of Fourth Order
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- Description
- This is one of a set of seven models of surfaces representing space curves of fourth order designed by Karl Rohn, professor of mathematics at the technical high school in Dresden. The series was first published by Brill in 1892. The black metal frame of this string model has two opposite sides that are circles, with two loops in each circle. The other two sides are H-shaped. The top and bottom contain a quadrilateral with curved sides. There are red and green strings, some with beads on them, many broken.
- This example of the model was exhibited at the Columbian Exposition, a World’s Fair held in Chicago in 1893.
- Compare models 1985.0112.181, 1985.0112.182, 1985.0112.183, 1985.0112.184, and 1985.0112.186.
- References:
- L. Brill, Catalog mathematischer Modelle..., Darmstadt: L. Brill, 1892, pp. 40-42, 75.
- An example of this model, with tag, is in the collections of the University of Utrecht, giving it the Brill series 21, number 1 designation. See https://www.uu.nl/en/research/3d-geometric-models/schilling-2101.
- Location
- Currently not on view
- Object Name
- geometric model
- geometric model
- date made
- 1892
- maker
- L. Brill
- place made
- Germany: Hesse, Darmstadt
- Physical Description
- string (overall material)
- glass (overall material)
- metal (overall material)
- Measurements
- overall: 21.6 cm x 20.7 cm x 18.6 cm; 8 1/2 in x 8 5/32 in x 7 5/16 in
- ID Number
- 1985.0112.184
- catalog number
- 1985.0112.184
- accession number
- 1985.0112
- Credit Line
- Gift of Wesleyan University
- See more items in
- Medicine and Science: Mathematics
- Data Source
- National Museum of American History
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