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Study of Escher's Print "Gravity"

10 Jul 2013, 23:43 UTC
Study of Escher's Print "Gravity"
(200 words excerpt, click title or image to see full post)

In his print Gravity, Escher placed 12 monsters on the star faces of the small stellated dodecahedron. He had thought of using turtles. I wish he had. With all their polygons, turtles are walking polyhedra.So I did this polyhedra study using polyhedral turtles:I've tried to follow Escher's patterns. Each turtle is looking at his neighbor's right leg, which forms rings of three. For example the yellow turtle is looking at the green turtle which is looking at the purple which is looking at the yellow. There are 4 sets of triple turtles and these four sets suggest a tetrahedron. There are other polyhedra suggested by other turtle groupings.Here is a picture of a turtle along with the net used to make his shell:To make this net I used rotation matrices, vector norms, vector cross products as well as dot products and an equation for finding the intersection of two coplanar lines. It was hard but fun.

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