Geometric Model, L. Brill No. 12. Ser. 4, No. 2, Cylinder, Cone and Plane Transformable into One-Sheeted Hyperboloid and Hyperbolic Paraboloid
Object Details
- Description
- From the early nineteenth century, mathematicians and engineers have studied surfaces generated by motion. The gold threads of this model form a cylinder, the red ones a double cone. Rotating the top circle of the frame twists the gold threads and untwists the red ones, forming surfaces called hyperboloids. The blue threads, which initially lie in a plane, become a hyperbolic paraboloid. This model was made in Germany and exhibited at the Columbian Exposition, the world's fair held in Chicago in 1893. It came to the Smithsonian from the mathematics department of Wesleyan University in Connecticut.
- Location
- Currently not on view
- Credit Line
- Gift of Wesleyan University
- Data Source
- National Museum of American History
- Date made
- 1893
- ID Number
- 1985.0112.009
- accession number
- 1985.0112
- catalog number
- 1985.0112.009
- maker
- Brill, L.
- Object Name
- geometric model
- Physical Description
- metal (overall material)
- string (overall material)
- glass (overall material)
- Measurements
- overall: 63.5 cm x 35 cm x 16 cm; 25 in x 13 3/4 in x 6 5/16 in
- place made
- Germany: Hesse, Darmstadt
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- Title
- Adjustable String Model
- Subject
- Education
- Worlds Fair
- Mathematics
- Record ID
- nmah_213460
