Photo report

Modèles mathématiques à l'IHP

Modèles mathématiques à l'IHP

20170052_0006
20170052_0006
Open media modal

Kummer quartic surface with eight real double points and eight imaginary double points. It was created by Karl Rohn, a German mathematician, in 1899. It has eight real double planes that meet the surface along eight conics marked on the model in plaster. It forms part of a collection of mathematical objects at the Institut Henri Poincaré (IHP).

Photo
20170052_0006
Surface quartique de Kummer à huit points doubles réels et huit points doubles imaginaires
20170052_0002
Open media modal

Wire surface based on a helix and created by Joseph Caron, professor of descriptive geometry at the École normale supérieure (ENS), on 16 November 1914. It is traced on a cylinder of radius r, rolled up in a coaxial cylinder of radius R > r. The surface contains three families of helices: those belonging to the cylinder of radius r are red, those belonging to the cylinder of radius R - r are blue, and those belonging to the cylinder of radius R are yellow. It forms part of a collection of…

Photo
20170052_0002
Surface en fil de fer, engendrée par une hélice et tracée sur un cylindre de rayon r
20170052_0003
Open media modal

Wire surface based on a helix and created by Joseph Caron, professor of descriptive geometry at the École normale supérieure (ENS), on 16 November 1914. It is traced on a cylinder of radius r, rolled up in a coaxial cylinder of radius R > r. The surface contains three families of helices: those belonging to the cylinder of radius r are red, those belonging to the cylinder of radius R - r are blue, and those belonging to the cylinder of radius R are yellow. It forms part of a collection of…

Photo
20170052_0003
Surface en fil de fer, engendrée par une hélice et tracée sur un cylindre de rayon r

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