To all-- I'll be on vacation from June 23 until July 5--and won't have internet access during that time. I'll approve membership and posts when I get back. See...
Hi, I was just sorting through a pile of papers and found an article that my nephew had sent me. It is "Hybrid Flexahedrons", by Douglas A Engle of Climax,...
Transparent Flexagons While developing some creative play ideas for younger children, I stumbled across the idea of transparent flexagons for colour mixing. ...
Transparent Flexagons While developing some creative play ideas for younger children, I stumbled across the idea of transparent flexagons for colour mixing. ...
An important message about privacy; a tidbit of information from a contact of David ... the net and see what you're doing and where you are going--similar to...
Not in any Popular Science on the newsstands of New York City...maybe it was a subscriber-based promo because of its cost? The Chevy ad is there, right before...
In the August 2006 issue of Popular Science, there is a removable ad from Chevy, An American Revolution. It is a flexagon that keeps turning and turning and...
I have just completed David Brill's wedge flexicube and posted pictures on my site www.raviapte.com/gallery/BrillFlexiCube This is an origami model designed by...
... Since this is a flexagon group its worth noting that this flexible structure isn't a flexagon as such. Fexagons are flexing strings of polygons. On the ...
... Well ... definitely ... maybe! As far as I can see the term flexahedron is in use in three quite separate ways. There may be more. Yes ... it is sometimes...
... The first two seem similar enough to me that flexihedron can apply to both. The last, since it flexes in the fourth dimension should be called a...
Douglas Engel calls them flexadrons, and Doris Schattschneider calls decorated rotating rings of polyhedra kaleidocycles. Les ... From: "Dave Mitchell"...
... There were rotating rings made of tetrahedra that Martin Gardner described in his Scientific American column back in the 1950s when I was in college. I...
... I wrote a program to generate kaleidocycles recently. Here is an animation based on one (740k) http://www.freewebtown.com/adrian/misc/kc_tet_03.gif Adrian ...
... I googled flexadrons ... and got no results! I have however discovered that Douglas Engel also used the term flexahedron to refer to rings of polyhedra...
... That is certainly a nice animation. If you want the framework, a ring in the center of each face runs out to three rings perpendicular to the center ring...
Hi Dan ... There is a nice page with instructions here http://www.mathematische-basteleien.de/kaleidocycles.htm (or search on 'kaleidocycle' for more) Adrian. ...
I just sent the link to my nephew at the Uof I, where he works in the library. So far, he had been good at tracking down obscure articles. I'll keep you...
The page you found is the table of contents of Les Pook's book, "Flexagons Inside Out." And on the rotating rings of polyhedra, Peter Hilton and Jean...
... If anyone wants to make an animation, the kaleidocycle program is not yet finished but works fine for regular tetrahedra. It is undocumented but included...
Hi John ... It is just a basic Python script to output the model stages of a single chain in OFF format, and another script to control the animation (using the...
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