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Cultural and educational center "Arkhe" - the territory of live intellectual communication.
The main task of the center is to popularize science and culture.

 

 
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Internet portal Notabene - smart books.
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The most durable construction

Which geometric solid known to us has the greatest strength? Which is most resistant to external...

Flexible polyhedra

Can a polyhedron be curved? Perhaps this is some kind of mistake? Or maybe this is not a...

Dual pairs of polyhedra

What does the dodecahedron and icosahedron have in...

Outer sphere of polyhedra

The perfection of the spherical shape has long attracted the attention of thinkers and scientists...

Polyhedra in the cinema

Modern cinema has tried to attract the attention of the viewer, using geometric forms of "alien...

Semi-Regular Polyhedrons

Semi-regular polyhedra are several groups of polyhedra: 1. Archimedean solids; 2. Catalan solids; 3....