Figures for George W. Hart's
In
the Palm of Leonardo's Hand: Modeling Polyhedra
| Fig. 1 | Fig. 2 | Fig. 3 | Fig. 4 | Fig. 5 | Fig. 6 | Fig. 7 | Fig. 8 | Fig. 9 | Fig. 10 | Fig. 11 | Fig. 12 | Fig. 13 |
Figures for George W. Hart's
In
the Palm of Leonardo's Hand: Modeling Polyhedra
| Fig. 1 | Fig. 2 | Fig. 3 | Fig. 4 | Fig. 5 | Fig. 6 | Fig. 7 | Fig. 8 | Fig. 9 | Fig. 10 | Fig. 11 | Fig. 12 | Fig. 13 |
| Fig. 1. "Elevated hexahedron" from the manuscript version
of De divina proportione. The term "hexahedron" means "six-sided
polyhedron", i.e., the cube, and "elevated" refers to the result of erecting
a pyramid on the outside of each face. Thus, the result has twenty-four
triangular faces in a nonconvex arrangement. There are notes in the printed
version of the book specifying that Pacioli invented this form as well
as the "elevated tetrahedron". | top
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