Conoid in contact with a hyperbolic paraboloid, surface string model

Conoid in contact with a hyperbolic paraboloid, surface string model

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Science Museum Group Collection
© The Board of Trustees of the Science Museum

String surface model, conoid in contact with a hyperbolic paraboloid

This is one of a large set of ruled surface models made by Fabre de Lagrange, in Paris, France, following designs introduced in the early 19th century. They illustrate surfaces which can be traced out in space by the movement of a straight line.

Details

Category:
Mathematics
Object Number:
1872-112
Materials:
brass (copper, zinc alloy), lead (metal), wood (unidentified) and cotton (fibre)
Measurements:
overall: 280 mm x 347 mm x 347 mm, 1.938 kg
type:
string surface model and mathematical model
credit:
Fabre de Lagrange