L. Brill No. 159, Ser. 10.1 No. 7, D41,6
L. Brill No. 159, Ser. 10.1 No. 7, D41,6
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- Description
- The German label on this white plaster model indicates that it is a model of a wave surface for a uniaxial optical crystal, Brill Ser. 6 No. 3. The catalog entry for that Brill number adds (with negative birefringence) at the end of the title. Such a model always has an outer shell that is an ellipsoid and an inner shell that is a sphere. However, this model is a sphere with one octant cut away to reveal part of an ellipsoid. Thus this is a model of a wave surface of a positive uniaxial crystal, whose Brill model number is No. 159, Ser. 10.1 No. 7.
- Stand 304722.23.01 may be for this model, as both have tag D41,6.
- Compare to 1985.0112.125.
- The correct label for this model appears on 1982.0795.23.
- This is one of a series of models designed at the Munich polytechnic high school under the direction of Alexander Brill in 1885.
- References:
- L. Brill, Catalog, 1892, p. 21, 87.
- 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).
- Francis A. Jenkins and Harvey E. White, Fundamentals of Optics, New York: McGraw Hill, 1976, p. 553-555.
- Location
- Currently not on view
- Object Name
- Geometric Model
- date made
- 1885-1900
- maker
- L. Brill
- place made
- Germany
- Physical Description
- plaster (overall material)
- Measurements
- overall: 10 cm x 10 cm x 10 cm; 3 15/16 in x 3 15/16 in x 3 15/16 in
- ID Number
- 1982.0795.21
- catalog number
- 1982.0795.21
- accession number
- 1982.0795
- Credit Line
- Gift of the Department of Mathematics, The University of Michigan
- subject
- Mathematics
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- Data Source
- National Museum of American History
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