Production year
2017
© Cyril FRESILLON / IHP / CNRS Images
20170052_0002
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 mathematical objects at the Institut Henri Poincaré (IHP).
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2017
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