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Ring Structures Made of Square Pyramids and Matching Tetrahedra


	A square pyramid and a matching tetrahedron are used to produce ring structures. Bars are aligned along the edges to from a lattice structure, while the nodes are marked by spheres.


	Contributed by: Sándor Kabai

This is the one of the essential structural features of the London Eye, a 135 m tall observation wheel in London.

Square Pyramid (Wolfram MathWorld)

Tetrahedron (Wolfram MathWorld)

"Ring Structures Made of Square Pyramids and Matching Tetrahedra" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/RingStructuresMadeOfSquarePyramidsAndMatchingTetrahedra/

Contributed by: Sándor Kabai

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