Can a polyhedron be curved? Perhaps this is some kind of mistake? Or maybe this is not a polyhedron? It turns out that there are flexible polyhedra.

Alexander Gaifullin says that there are other types of polyhedra - flexible polyhedra.

To illustrate the usual polyhedron, Alexander uses the icosahedron assembled from our set "Magic Edges"!

Used materials video project "Postnauka" (http://postnauka.ru/).

ARCHIMED (287 - 212 BC) - Ancient Greek mathematician, physicist and mechanic. Archimedes is the...

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

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Suppose you first saw the edition “Magic Edges” on the counter of a bookstore or on Internet...