Geometric Model, Octant of a Wave Surface for Refraction in a Negative Biaxial Crystal, L. Brill or M. Schilling Ser.6 No.4 (Part), D41,4
date: label: date made
content: 1889
notes: label: Description
content: This is a white plaster model of an octant of a Fresnel wave surface for refraction in a biaxial crystal. It appears to be bounded by part of a sphere on the outside and part of an ellipsoid on the inside. It has no tags. A grid of lines is indicated on both the inside and the outside. The model is the mirror image of 1982.0795.18.These two models form Series 6, No. 4 in the series of models produced by L. Brill and later M. Schilling. They are Brill's model 162 and Schilling's model 360.
label: Description
content: 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.
label: Description
content: References:
label: Description
content: L. Brill, <I>Catalog</I>, 1892, p. 13, 87.
label: Description
content: Francis A. Jenkins and Harvey E. White, <I>Fundamentals of Optics</I>, New York: McGraw Hill, 1976, pp. 553-555
label: Description
content: M. Schilling, <I>Catalog</I>, 1911, p. 13, 168.
label: Description
content: For another example of the model, with a reference to a related publication, see the Goettingen collection of mathematical models, model number 287.
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: 1982.0795.19
label: catalog number
content: 1982.0795.19
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: 11.8 cm x 12 cm x 8.7 cm; 4 21/32 in x 4 23/32 in x 3 7/16 in