EDUCATIONAL DEVICE AND
METHOD
United States Patent Number 4,650,424
RELATED APPLICATIONS
This is a continuation in part of Ser. Number 628,209,
Jul. 5, 1984, abandoned, and Ser. No. 614,050, May 25, 1984,
abandoned, and Ser. No. 430,316, Sep. 30,1982,
Pat. No. 4,461,480 and Ser. No. 430,315, Sep. 1982, abandoned.
Primary Examiner -- William H. Grieb
Firm -- Hall, Myers & Rose
Date of the Patent: March 17, 1987
Background
Summary
Description of Figures
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ABSTRACT
An educational device and method for demonstrating characteristics
of a latticework of spacepoints including demonstrating (a) the
commonality of latticework between tetrahedron configuration latticework
and octahedron configuration latticework, (b) that octahedron
latticework merges with tetrahedron latticework, (c) the 13-plane
structure of the common latticework, (d) how simultaneous twinning
in more than one of the 13 planes can form multitudes of combinations
of domains of tetrahedrons and octahedrons, and (e) the altering
of latticework by appropriately selecting the dimensions of structure
members that define spacepoints in the latticework. Preferably,
the structure members are similarly dimensioned and oriented ellipsoidal
elements which are gravity stacked and optionally connectable
and wherein the centerpoint of each ellipsoidal element represents
a spacepoint in the latticework. With ellipsoidal elements, the
latticework structure is determined by the relative lengths of
the three orthogonal axes of symmetry of the ellipsoidal elements
when the common axis and the location of either orientation mark
are known.
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