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Summer is the time you want to spend outdoors. At the desk, the children will sit down in...
A suspended ceiling lamp, or simply a chandelier, has never been so close to exact mathematical...
Semi-regular polyhedra are several groups of polyhedra: 1. Archimedean solids; 2. Catalan solids;...
So far, we have actively used glue to assemble polyhedrons from the Magic Edges sets. Moreover, we...
For a primeval man, fire once became a new form of social life. The night ceased to be an...