Skew surface with its tangent paraboloid surface string model

Skew surface with its tangent paraboloid Skew surface with its tangent paraboloid

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

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

Skew surface with its tangent paraboloid
Science Museum Group
© The Board of Trustees of the Science Museum

Skew surface with its tangent paraboloid
Science Museum Group
© The Board of Trustees of the Science Museum

Skew surface with its tangent paraboloid, capable of transformation into another skew surface while the paraboloid deforms into a plane; this is (for a certain position of the lower semicircle) a skew surface with a director plane, the plane being vertical

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:
1872-122
Materials:
complete, brass (copper, zinc alloy), lead (metal), wood (unidentified) and string
type:
surface model (string)
credit:
Fabre de Lagrange