... Uh Huh. Here is the triangular version of the same, or there abouts. http://www.rwgrayprojects.com/synergetics/s10/figs/f33019.html Ryb0...
1252
Adrian Rossiter
adrianrossiter
Sep 27, 2006 2:18 pm
Hi John ... Twisted polyhedra do seem quite popular as a base for puzzles. I made a list here ...
1251
Adrian Rossiter
adrianrossiter
Sep 27, 2006 2:02 pm
... I have added tr_tet_tr_oct_cubo to this list. Each of the three polyhedra in this pack is surrounded by the other two. Here is a cross-eyed stereo view....
1250
John Berglund
anisohedral
Sep 27, 2006 1:25 pm
These remind me of some of George Hart's puzzles. See http://www.georgehart.com/puzzles/index.html John Berglund Adrian Rossiter <adrian_r@...> wrote: ...
1249
Adrian Rossiter
adrianrossiter
Sep 26, 2006 4:33 pm
... Correct link for the woven cuboctahedron http://www.freewebtown.com/adrian/tmp/av_cubo_wv.jpg Adrian. -- Adrian Rossiter adrian@... Home:...
1248
Adrian Rossiter
adrianrossiter
Sep 26, 2006 10:45 am
Hi Rybo ... Yes, I think the weave gives the true tensegrity shape for the regular polyhedra. For the quasiregular polyhedra it gives a similar, but not exact...
1247
rybo6
os_jbug
Sep 25, 2006 10:44 pm
... Adrian, this ones akin to tensegrity polyhedra with out the cables. Rybo...
1246
Adrian Rossiter
adrianrossiter
Sep 25, 2006 4:33 pm
Hi Rob ... I have heard good things about it, but haven't used it. ... I have seen it referenced quite often. ... I thought that would be the case, except an...
1244
Robert Webb
robertcharle...
Sep 25, 2006 11:43 am
... Have you seen my program Great Stella? I wrote it in C/C++ and used OpenGL for the graphics. Standard Windows stuff for the GUI, which unfortunately...
1243
Adrian Rossiter
adrianrossiter
Sep 25, 2006 11:31 am
... I forgot to say that I have included support for displaying equal-sized ball packs too. Here is a diamond arrangement and drawn again as a ball pack ...
1242
Adrian Rossiter
adrianrossiter
Sep 25, 2006 8:30 am
... Should be http://www.freewebtown.com/adrian/tmp/av_ico_wv.gif Adrian -- Adrian Rossiter adrian@... Home: http://antiprism.com/adrian...
1241
Adrian Rossiter
adrianrossiter
Sep 25, 2006 8:21 am
Hi All I have been looking at producing a GUI for my command line programs. It is difficult to decide on a cross-platform set of GUI tools. I have just been...
1240
rybo6
os_jbug
Sep 25, 2006 2:30 am
Structure as physical( or quasi-physical ) vs system as metaphysical is the/a, primary, apriori cosmic complementary duality. 1) The Vector Equilibirum( VE...
1239
Alan Michelson
a.michelson
Sep 25, 2006 2:29 am
12 Rh-Dods surround a central nuclear Rh-Dod in 3D. Now, replace the Rh-Dod with spheres in 3D. 24 24-cells surround a central nuclear 24-cell in 4D. Now,...
1238
rybo6
os_jbug
Sep 25, 2006 2:29 am
2nd Revision of System vs Structure( Renamed As 'Primary Cosmic Complementaries': A) 'Structure' as physical( or quasi-physical ) is eternally complementary...
1237
Alan Michelson
a.michelson
Sep 25, 2006 2:29 am
Michael Allyn Roy <http://MichaelAllynRoy.com/> has dedicated a geometric symbol for each life that ended due to the events of September 11th. This includes...
1236
rybo6
os_jbug
Sep 8, 2006 7:51 pm
If the 24-cell has 24 spheres kissing a central sphere then we should be able to tranpose the Rhombic-Dodecahedra for the "spheres" as Rh- Dod. are the...
1235
Alan Michelson
a.michelson
Sep 8, 2006 7:49 pm
... 1D-Edges are joined at the 0D-vertex. ... 2D-Polygons are joined at the 1D-edge. ... 3D-Polyhedra are joined at the 2D-polygon. ... A 0D-point is an...
1234
Alan Michelson
a.michelson
Sep 8, 2006 7:49 pm
... You are talking about rotation on the W-X plane at the same time that there is rotation on the Y-Z plane ...
1233
rybo6
os_jbug
Sep 8, 2006 7:47 pm
So the number 10 and 24 stands out in Ramanajuans 'modular functions'. I would remind others of the quasi-commensuration of 4-fold ( octahedral group-order 24...
Hi John ... If you have access to a copy of Coxeter's Regular Polytopes, I believe that what you say is true by statement 12.21 on page 217. Adrian. -- Adrian...
1230
John Berglund
anisohedral
Sep 5, 2006 1:27 pm
... Do you have a definition of these isometry types? For example, the identity can be considered a rotation through 0 degrees, or a translation through 0...
1229
Adrian Rossiter
adrianrossiter
Sep 3, 2006 1:33 pm
... I've just released Packinon 0.07 http://packinon.sourceforge.net/download Documentation for the string_art program ...
1228
Adrian Rossiter
adrianrossiter
Sep 3, 2006 7:06 am
Hi Alan ... The mirror method I suggested adds two (direct) pure rotation types to the 4D list, the rotation you say and also this rotation followed by another...
1227
rybo6
os_jbug
Sep 2, 2006 9:48 pm
... Rob I recognize that rhombi-cubo-octahedron. Here is another version discovered by Jim Lehman. http://www.blackcatphotoproducts.com/lehmanville.jpg Jism...
1226
rybo6
os_jbug
Sep 2, 2006 9:43 pm
... Rob, I recognize that rhombi-cubo-octahedron. Here is another version discovered by Jim Lehman. http://www.blackcatphotoproducts.com/lehmanville.jpg Jism...
1225
Alan Michelson
a.michelson
Sep 2, 2006 9:43 pm
... Reflection is a 1D shadow of a 2D rotation. ... translation, glide reflection Reflection is a 2D shadow of a 3D rotation. ... axis],reflection-rotation,...
1224
Adrian Rossiter
adrianrossiter
Sep 2, 2006 4:05 pm
Hi All I wrote a primitive program for making some sorts of string art. I will include it in the next Packinon release, which I expect will be soon. Here are...
1223
Adrian Rossiter
adrianrossiter
Sep 1, 2006 9:26 am
Hi All I have written a small GLUT based viewer which displays models based on R. Buckminster Fullers jitterbug transformation. ...
