Hoberman Cube

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Expandable rings are placed parallel to the faces of a cube and connected near the cube's edges. (This can be done with polyhedra other than the cube, too.) For visual help, a transparent cube is shown which grows as the rings expand, and another cube with constant size is at the center to indicate the relative size.

Contributed by: Sándor Kabai (March 2011)
Additional contributions by: Luc Barthelet
Open content licensed under CC BY-NC-SA




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