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Geometric Model, L. Brill No. 4. Ser. 10,1. 3, Ellipsoid Divided along a Circular Crossection

Geometric Model, L. Brill No. 4. Ser. 10,1. 3, Ellipsoid Divided along a Circular Crossection

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This white plaster ellipsoid is divided in two along a circle that makes an angle of about 45 degrees with the major axis of the ellipse. Two metal rods protruding from the right portion fit into metal-lined holes in the left portion.
A tag on the model reads: Ellipsoid mit Kreisschitt. (/) Ver. v. L. Brill 10. S. 1. Nachtr. Nr.3. Another tag reads: D41,11. A stand with number MA.304722.23 also is marked D41,11.
This series of models was designed at the technical high school in Munich under the direction of Alexander Brill, and originally published in 1885.
L. Brill, Catalog, 1892, p. 21, 57, 91
Currently not on view
Object Name
Geometric Model
date made
Brill, L.
place made
Germany: Hesse, Darmstadt
Physical Description
plaster (overall material)
paper (overall material)
overall: 6.7 cm x 14 cm x 10 cm; 2 5/8 in x 5 1/2 in x 3 15/16 in
ID Number
catalog number
accession number
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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