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About: Lénárt sphere     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:University, within Data Space : dbpedia.org associated with source document(s)

Type: Thinguniversity New Facet based on Instances of this Class

A Lénárt sphere is a educational manipulative and writing surface for exploring spherical geometry, invented by Hungarian István Lénárt as a modern replacement for a spherical blackboard. It can be used for visualizing the geometry of points, great and small circles, triangles, polygons, conics, and other objects on a sphere, and comparing spherical geometry to Euclidean geometry as drawn on a flat piece of paper or blackboard. The included spherical ruler and compass support synthetic straightedge and compass construction on the sphere.