Geometric Model, L. Brill No. 159. Ser. 10. 1 No. 7, Wave Surface with Stand
date: label: date made
content: 1892
name: label: maker
content: L. Brill
notes: label: Description
content: This is a white plaster model of a wave surface in a positive uniaxial crystal. It is a sphere, cut away in one quadrant to reveal an ellipsoid. A torn paper tag on the model reads: (. . .) opt. einax. Kryst. (/) (. . .) Nchrt. Nr. 7 (ad 3).
label: Description
content: The model rests on a round wooden stand painted black.
label: Description
content: This is one of a series of models designed at the Munich polytechnic high school under the direction of Alexander Brill in 1885.
label: Description
content: This particular example of the model was exhibited at the Columbian Exposition, a World’s Fair held in Chicago in 1893.
label: Description
content: Compare to 1982.0795.21.
label: Description
content: References:
label: Description
content: L. Brill, <I>Catalog</I>, 1892, p. 21, 87.
label: Description
content: For examples of related models, with a reference to a related publication, see the Goettingen collection of mathematical models, model numbers 283 (Schilling #356) and 284 (Schilling #357).
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: 1985.0112.125
label: catalog number
content: 1985.0112.125
label: accession number
content: 1985.0112
objectType: label: Object Name
content: geometric model
label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: plaster (overall material)
label: Measurements
content: overall: 10.3 cm x 10 cm x 10 cm; 4 1/16 in x 3 15/16 in x 3 15/16 in
label: Measurements
content: model without stand: 8.5 cm x 8.5 cm x 8.5 cm; 3 11/32 in x 3 11/32 in x 3 11/32 in