Tetrahedron blocks capable of assembly into cubes and pyramids

Details Tetrahedron blocks capable of assembly into cubes and pyramids Tetrahedron blocks capable of assembly into cubes and pyramids

1979-02-12

1981-03-31

Skogquist, Harland S.

Education and demonstration

Mathematics

Geometry, trigonometry, or physical mathematic model structure

46 24, 434403, A63H 3304

Patent

active

042584795

ABSTRACT:
A series of interrelated sets of tetrahedron Each set is capable of assembly into a cube with all the cubes being identical in size. Typically, there are at least three such sets, though there may be more; and when there are three sets, for example, one set contains twice as many tetrahedron blocks as the second set and four times as many as the third set. The tetrahedrons are preferably hollow and each of them has a magnet for each face, e.g., affixed to the interior walls of its faces, the magnets being so polarized that upon assembly into a cube or pyramid, the magnets of facing faces attract each other. Preferably, the blocks are colored in such a way that faces of the same size and shape are colored alike and each size and shape has a different color.

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Pipet Color Codes, Fisher Scientific Co., p. 804, 1965 catalog.

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