L. Brill No. 160 Ser. 6. No. 1a part of D41,10

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Description
This is a white plaster model of the outer shell of a Fresnel wave surface for a biaxial crystal. The model originally was in two pieces that were notched to fit together. Both of the original two pieces are broken in half.
A paper tag on one piece reads: D41,10. Another paper tag reads: Fresnel'sche Wellenflache (/) Verl. v. L. Brill 6. Ser. Nr. 1a.
The inner shell of the wave surface is 1982.0795.24.
This is a white plaster model of the outer shell of a Fresnel wave surface for a biaxial crystal. The model originally was in two pieces that were notched to fit together. Both of the original two pieces are broken in half.
A paper tag on one piece reads: D41,10. Another paper tag reads: Fresnel'sche Wellenflache (/) Verl. v. L. Brill 6. Ser. Nr. 1a.
The inner shell of the wave surface is 1982.0795.24.
The model is part of a series designed under the direction of Alexander Brill at the technical high school in Munich and first published in Darmstadt in 1880.
References:
L. Brill, Catalog, 1892, p. 13, 87.
For examples of related models, with a reference to a related publication, see the Goettingen collection of mathematical models, model numbers 285 and 286.
Location
Currently not on view
date made
1880-1900
maker
Brill, L.
place made
Deutschland
Physical Description
plaster (overall material)
Measurements
overall: 12 cm x 11.5 cm x 8.5 cm; 4 23/32 in x 4 17/32 in x 3 11/32 in
ID Number
1982.0795.25
catalog number
1982.0795.25
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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