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In the library Bolyai-Teleki, in Târgu Mureş (Romania), there's a model of pseudosphere...
The subdivision of the sphere in 120 spherical triangles with angles of 36°, 60°, 90°. ...
The three possible ways of dividing a sphere in equal spherical triangles so that every tr...
In the library Bolyai-Teleki, in Târgu Mureş (Romania), there's a model of pseudosphere...
A subdivision of the sphere into 24 spherical triangles with angles 60°, 60°, 90°. From...
The figure represents a tessellation of the hyperbolic plane in equal triangles, whose ang...
Three kaleidoscopes and other material for a laboratory on spherical geometry.
This interactive animation shows the connection between a regular polyhedron (as, for exam...
A sphere with the track of the planes of symmetry of the cube on its surface. This image h...
This basket of the Mozambican handicraft has a prismatic symmetry of type D4. Its structur...
