CURRENT MOON
phases of the moon
EyeLovePi

A Polyhedral Journey, Beginning with Face-Based Zonohedrification of an Icosahedron

A Polyhedral Journey, Beginning with Zonohedrification

To begin this, I took an icosahedron, and made a zonish polyhedron with it, with the new faces based on the zones of the existing faces. Here’s the result.

1 face-based zonish icosahedron

Next, I started stellating the polyhedron above. At the sixth stellation, I found this. It’s a true zonohedron, and the first polyhedron shown here is merely “zonish,” because one has triangles, and the other does not. (One of the…

View On WordPress

Comments

A Zonish Icosahedron, and Some of Its “Relatives”

To begin this, I used Stella 4d (available here) to create a zonish polyhedron from the icosahedron, by adding zones along the x-, y-, and z-axes. The result has less symmetry than the original, but it is symmetry of a type I find particularly interesting.

zonohedrified icosahedron xyz

After making that figure, I began stellating it, and found a number of interesting polyhedra in this polyhedron’s stellation-series. This is…

View On WordPress

Comments

Cuboctahedral Cluster of Rhombic Triacontahedra

Due to their high number of planes of symmetry, rhombic triacontahedra make excellent building blocks to build other polyhedra.

Comments

Sam Harris: A Quote

Source — Waking Up:  A Guide to Spirituality Without Religion, p. 38.

Comments

Anticarbon-14 and Oxygen-18 Nuclei: What If They Collided? And Then, What About the Reverse-Reaction?

anticarbon-14 and oxygen-18Were nuclei of anticarbon-14 and oxygen-18 to collide (and their opposite charges’ attractions would help with this), what would happen? Well, if you break it down into particles, the anticarbon-14 nucleus is composed of six antiprotons and eight antineutrons, while the oxygen-18 contains eight protons and ten neutrons. That lets six proton-antiproton pairs annihilate each other, containing a…

View On WordPress

Comments

Top 100 Banned/Challenged Books: 2000-2009

The best ways to celebrate Banned Books Week (which is going on now) are to read/buy/give away banned books, and/or donate money to libraries which deliberately put banned books in the circulating collection, as all good libraries do.

I’ve color-coded the list below. Books in red, I have read in their entirety. Books in blue, I have read some of, but have not (yet) finished. Also, now that I know…

View On WordPress

Comments

The 109th Stellation of the Triakis Icosahedron

Created using Stella 4d:  Polyhedron Navigator, available here.

Comments

Two Different Sets of Two Dozen Flying Kites

24 kites

Because (6)(4) = 24 = (8)(3), that’s why.

bowtie octagon dual

I used Stella 4d to make each of these. A free trial download of this software is available here.

View On WordPress

Comments

Moving Polyhedral Desktop Backgrounds for PCs

I use a rather old laptop PC, but I think this would work for desktop PCs, as well.

Comments

Zome: Strut-Length Chart and Product Review

This chart shows strut-lengths for all the Zomestruts available here ( as well as the now-discontinued (and therefore shaded differently) B3, Y3, and R3 struts, which are still found in older Zome collections.

Comments
+ Load More Posts