Skew surface with its tangent paraboloid surface string model

Made:
1872 in Paris
maker:
Fabre de Lagrange

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

Skew surface with its tangent paraboloid, capable of transformation into another skew surface while the paraboloid deforms into a plane. 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:
brass, lead, wood, string, complete
type:
surface model (string)
credit:
Fabre de Lagrange

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