Geometrical Conoids String Surface Model

Made:
1872 in France and Paris
maker:
Fabre de Lagrange
String surface model, conoids, cylinder and cone. Model showing four surfaces: a cylinder, cone and two conoids. This

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String surface model, conoids, cylinder and cone. Model showing four surfaces: a cylinder, cone and two conoids. This
Science Museum Group Collection
© The Board of Trustees of the Science Museum

String surface model, conoids, cylinder and cone

Model showing four surfaces: a cylinder, cone and two conoids. 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:
1872-114
Materials:
brass (copper, zinc alloy), cotton (fibre) and lead (metal)
type:
string surface model
credit:
Fabre de Lagrange