This polyhedron has 92 faces: twelve regular pentadecagons, twenty equilateral triangles, and sixty isosceles triangles, each with a vertex angle of ~42.5°. Its first stellation appears below.
Both models were created using Stella 4d, software you can try for yourself at http://www.software3d.com/Stella.php.
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.”
Posted in Life, Science and Scientists, Humor
Tagged science, astronomy, moon, joke, funny, car, used car, Humor, moon unit, distance
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.
Alternately, this can be seen as a tessellation of hexagons and enneagons. Which do you see?
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 model.
Finally, here it is as a space-filling molecular model.
All three images were created with Stella 4d: Polyhedron Navigator. This is the page to visit if you want to try Stella for yourself: http://www.software3d.com/Stella.php.
Posted in Mathematics, Science and Scientists
Tagged 320, c, C320, carbon, chemistry, fullerene, geometry, Mathematics, molecular, molecule, polyhedra, polyhedron, science