Conoid in contact with a hyperbolic paraboloid, surface string model

Made:
1872 in Paris
maker:
Fabre de Lagrange

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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), cotton (fibre), lead (metal) and wood (unidentified)
type:
string surface model
taxonomy:
  • furnishing and equipment
  • tools & equipment
  • mathematical demonstration equipment
credit:
Fabre de Lagrange