Geometric Model, L. Brill No. 15. Ser. 6 No. 5, Circular Cone (Disjoinable)

Geometric Model, L. Brill No. 15. Ser. 6 No. 5, Circular Cone (Disjoinable)

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Cutting a cone by a plane yields several different curves of second degree, which are known as conic sections. This white plaster model of a circular cone has two parts. One is fixed to the base. A second and the largest is cut by a plane on one side to give a hyperbola and on the other side to give an ellipse. Two further pieces are missing. A paper tag on the front of the base reads: 15. A second, partial tag reads: Kreiskeg.... ebenen schitten. (/) Verl. v. L. Brill. 6. Ser. Nr. 5.
Compare 1985.0112.012, 1985.0112.013, and 1979.3002.21.
Ludwig Brill, Catalog mathematischer Modelle..., Darmstadt: L. Brill, 1892, p. 13, 59.
Currently not on view
Object Name
geometric model
date made
L. Brill
place made
Germany: Hesse, Darmstadt
Physical Description
paper (overall material)
plaster (overall material)
overall: 22 cm x 21 cm x 21.5 cm; 8 21/32 in x 8 9/32 in x 8 15/32 in
ID Number
catalog number
accession number
Credit Line
Gift of Wesleyan University
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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