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Author Archives: RobertLovesPi
The Moon Unit Proposal
I propose that 384,400 km (238,855 miles), the average distance from the Earth to the Moon, be called a “moon unit.” Example: “The mileage of my car is over one moon unit.”
Four Polyhedra Featuring Enneagons
Enneagons are also called nonagons; they are polygons with nine sides. I used Stella 4d to make these four rotating polyhedra, and you may try this program for yourself at http://www.software3d.com/Stella.php.
Posted in Mathematics
Tagged enneagon, geometry, Mathematics, nonagon, polyhedra, polyhedron
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Tessellation of Triangles and Pentagons
Alternately, this can be seen as a tessellation of hexagons and enneagons. Which do you see?
Posted in Mathematics
Tagged enneagon, geometry, hexagon, Mathematics, nonagon, pentagon, tessellation, triangle
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The C-320 Fullerene Polyhedron
The duals of the geodesic domes are polyhedra with hexagonal and pentagonal faces. This particular one has 320 vertices, with those vertices representing carbon atoms. Here is C-320 as a polyhedron. The next image shows this molecule as a ball-and-stick … Continue reading
Posted in Mathematics, Science and Scientists
Tagged 320, c, C320, carbon, chemistry, fullerene, geometry, Mathematics, molecular, molecule, polyhedra, polyhedron, science
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The Construction of a Zome Model of a 240-Atom Fullerene Molecule, In Seven Pictures
You can buy your own Zome at http://www.zometool.com.
A Faceting of the Rhombcuboctahedron
This particular faceting of the rhombcuboctahedron can also be viewed as a cluster of stella octangulae. I made it using Stella 4d, polyhedron-manipulating software you can try, for yourself, at http://www.software3d.com/Stella.php.
Posted in Mathematics
Tagged facet, faceted, faceting, geometry, Mathematics, polyhedra, polyhedron, rhombcuboctahedron, rhombicuboctahedron, stella octangula
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