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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/).

The “business card” of the Republic of Belarus is a new building of the National Library in Minsk. The...

The founders of the city of Mirny, located in the Arkhangelsk region, placed a polyhedron, the...

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

According to some spiritual teachings, a polyhedron already familiar to us — a compound of two...

Architects have used the elements of polyhedra in designing their constructions since ancient...

One can specify the following mathematical characteristics in each of the five Platonic solids: 1....