Polytopia at Yahoo! Groups

Re: Novel Classes of Polyhedra

jennifer kurtz — Tue, 02 Feb 2010 00:19:47 GMT

Thank you for sharing! You made my little guy's month!!! He only got to watch one tonight before bed and was so thrilled that he got to rate it!

Novel Classes of Polyhedra

occamsword — Mon, 01 Feb 2010 23:21:18 GMT

I've created six slide shows at Youtube featuring new classes of polyhedra, including: Exploded, Lattice, Open and Crown polyhedra. You can find them by typing

Re: Having Some Fun with Natural Color System

Alan M — Thu, 07 Jan 2010 05:53:19 GMT

... Just look at the http://en.wikipedia.org/wiki/Natural_Color_System ... Which you can build from http://www.adrianbruce.com/maths/nets/tetrahedron_net.htm

Re: Fwd: Geometric Christmas Ornaments [1 Attachment]

Burt Clawson — Thu, 31 Dec 2009 04:39:13 GMT

i think those icosahedral ornaments are very cool. Here's a paper ornament I built about four years ago - a small stellated dodecahedron. Paper, razor

Re: Fwd: Geometric Christmas Ornaments

Alan Michelson — Thu, 31 Dec 2009 00:38:52 GMT

Without making fun of the "little" icosahedra, (I'd rather hang BIG icosahedra on the tree.) I have always liked geometric stuff as decorations. (See the

Re: Fwd: Geometric Christmas Ornaments

FreeManInParis — Wed, 30 Dec 2009 00:01:09 GMT

You're being facetious, aren't you?

Fwd: Geometric Christmas Ornaments

Alan M — Tue, 29 Dec 2009 03:39:37 GMT

Wow! How about that! Little icosahedra on your Christmas Tree! I bet that anyone can make the templates

Geometric Christmas Ornaments

FreeManInParis — Tue, 15 Dec 2009 18:54:25 GMT

Hi everyone - I just thought I'd let you know I took my passion for designing patterns on triangular grids mapped across an icosahedral template, and I turned

Re: Astro-logix geometry construction

roopak vaidya — Sat, 12 Dec 2009 13:26:30 GMT

The astrologix seems like an excellent not-just-a-toy. However, at 60$ seems grossly over-priced. ________________________________ From: robstrange66

Re: Astro-logix geometry construction

Alan M — Fri, 11 Dec 2009 18:33:11 GMT

Astro Logix An evolutionary new construction toy. http://www.astro-logix.com/ ... which glows in

Astro-logix geometry construction

robstrange66 — Thu, 10 Dec 2009 22:42:11 GMT

This fan page showcases a cool multi-dimensional construction toy which glows in the dark - http://www.facebook.com/astrologix . Can be used to build shapes

Re: "Ah, this is so much fun." - THE 4900

Alan M — Sun, 25 Oct 2009 21:54:30 GMT

... 1 4 9 16 25 36 49 64 81 100 121 144 169 196 225 256 289 324 361 400 441 484 529 576 ... 4900 ... to ... can ... ?

Re: no peaks & no valleys

Alan Michelson — Thu, 15 Oct 2009 04:51:33 GMT

I have the wavy color wheel according to the red-green-blue model, and I also have the flattened color wheel according to how we perceive the color spectrum.

Math Midway

jjkostick — Wed, 14 Oct 2009 13:19:17 GMT

For those in the eastern PA area, the Math Midway will be traveling to Allentown, PA at the end of the week. The Math Midway is a carnival-style traveling

Re: peaks & valleys

Alan Michelson — Wed, 14 Oct 2009 04:07:08 GMT

... From: Alan Michelson Subject: Re: [Polytopia] Re: peaks & valleys To: Polytopia@yahoogroups.com Date: Monday, October 5, 2009,