Geometric Model, L. Brill No. 158 Ser. 6. No. 3, Wave Surface of a Positive Uniaxial Crystal, D41,8
date: label: date made
content: 1889
name: label: maker
content: L. Brill
notes: label: Description
content: The German label on this white plaster model indicates that it is a model of a wave surface for a positive uniaxial optical crystal, L. Brill Ser. 10.1 No. 7. Such a model always has an outer shell that is a sphere and an inner shell that is an ellipsoid. However, this model is an ellipsoid with one octant cut away to reveal part of a sphere. Thus this is a model of a wave surface of a negative uniaxial crystal whose Brill model is No. 158, Ser. 6, No. 3. The correct label for this model appears on 1982.0795.21.
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 1880.
label: Description
content: Compare to 1985.0112.124.
label: Description
content: References:
label: Description
content: L. Brill, <I>Catalog</I>, 1892, p. 13, 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: Description
content: Francis A. Jenkins and Harvey E. White, <I>Fundamentals of Optics</I>, New York: McGraw Hill, 1976, p. 553-555.
label: Location
content: Currently not on view
place: label: place made
content: Germany
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 the Department of Mathematics, The University of Michigan
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1982.0795.23
label: catalog number
content: 1982.0795.23
label: accession number
content: 1982.0795
objectType: label: Object Name
content: Geometric Model
physicalDescription: label: Physical Description
content: plaster (overall material)
label: Measurements
content: overall: 8 cm x 9 cm x 9 cm; 3 5/32 in x 3 17/32 in x 3 17/32 in