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986.410
T Quanta Module
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![]() Fig. 986.411A ![]() Fig. 986.411B ![]() Fig. 986.411C |
986.411
The respective 12 and 30 pentahedra OABAB of the rhombic
dodecahedron
and the triacontahedron may be symmetrically subdivided
into four right-angled tetrahedra
ABCO, the point C being surrounded by three right angles
ABC, BCO, and ACO. Right-
angle ACB is on the surface of the rhombic-hedra system
and forms the face of the
tetrahedron ABCO, while right angles BCO and ACO are
internal to the rhombic-hedra
system and from two of the three internal sides of the
tetrahedron ABCO. The rhombic
dodecahedron consists of 48 identical tetrahedral modules
designated ABCOd. The
triacontahedron consists of 120 (60 positive and 60
negative) identical tetrahedral modules
designated ABCOt, for which tetrahedron ABCOt we also
introduce the name T Quanta Module.
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![]() Fig. 986.413 |
986.413
The rhombic dodecahedron has a tetravolume of 6, wherefore
each of its 48
identical, internal, asymmetric, component tetrahedra
ABCOd has a regular tetravolume of
6/48 = 1/8 The regular tetrahedron consists of 24 quanta
modules (be they A, B, C, D,5 *
or T Quanta Modules; therefore ABCOd, having l/8-tetravolume,
also equals three quanta
modules. (See Fig.
986.413.)
(Footnote 5: C Quanta Modules and D Quanta Modules are added to the A and B Quanta Modules to compose the regular tetrahedron as shown in drawing B of Fig. 923.10.) |
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986.416
1 A Module = 1 B Module = 1 C Module = 1 D Module =
1 T Module = any
one of the unit quanta modules of which all the hierarchy
of concentric, symmetrical
polyhedra of the VE family are rationally comprised.
(See Sec.
910).
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![]() Fig. 986.419 |
986.419
The 120 T Quanta Modules of the rhombic triacontahedron
can be grouped
in two different ways to produce two different sets
of 60 tetrahedra each: the 60 BAAO
tetrahedra and the 60 BBAO tetrahedra. But rhombic triacontahedra
are not allspace-filling
polyhedra. (See Fig.
986.419.)
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| Next Section: 986.420 |