Serie V; Plaster models

Number Title Date of Design Dimension (cm) Material
Serie V, nr. 2a Surface of revolution with constant positive curvature with geodesics. The sphere. 1880 9-9-9 Plaster
Serie V, nr. 2b Surface of revolution with constant positive curvature with geodesics. The meridian of the surface of revolution meets the axis. 1880 11-7-7 Plaster
Serie V, nr. 2c Surface of revolution with constant positive curvature with geodesics. The meridian of the surface of revolution does not meet the axis. 1880 10-10-12 Plaster
Serie V, nr. 3 Generalized helicoid with constant positive curvature. 1880 24-15-15 Plaster
Serie V, nr. 4 Generalized helicoid with constant negative curvature. 1880 24-15-15 Plaster
Serie V, nr. 5a Four forms of the cyclide of Dupin. Ring cyclide with imaginary double points. 1880 7-14 Plaster
Serie V, nr. 5b Four forms of the cyclide of Dupin. Horn cyclide; two real double points join the two sheets of the surface lying apart 1880 6-19 Plaster
Serie V, nr. 5c Four forms of the cyclide of Dupin. Spindle cyclide; one sheet of the surface lying on another and joint by two real double points 1880 10-11 Plaster
Serie V, nr. 5d Four forms of the cyclide of Dupin. Parabolic cyclide with two real double points; spreads out to infinite with a single sheet of the surface 1880 12-15 Plaster
Serie V, nr. 6 The catenary on a sphere 1880 9 Plaster
Serie V, nr. 7a The envelope of the geodesic lines on the ellipsoid, coming from one point. The extended ellipsoid of revolution. 1880 12-12-8 Plaster
Serie V, nr. 7b The envelope of the geodesic lines on the ellipsoid, coming from one point. Spheroid, with the envelope for two different starting points. 1880 7-7-10 Plaster