This group has been pretty good about not posting off topic over the last 6 years (wow Polytopia for 6 years!)- but still a few slip through the cracks. I...
Thanks for that table Alan! My thoughts are that Theodorus first constructed it with compass and ruler- which gave the required precision without much...
I have a question--a comment to the original post stated that 17 is the first number for which the even-odd concept used in the proof of the irrationality of...
... If it is a multiple <http://en.wikipedia.org/wiki/Multiple_%28mathematics%29> of two <http://en.wikipedia.org/wiki/Two> , then it is an even number, else...
Thanks, I understand the example proof, but my question was whether there is something unique about 17 and its square root as implied in the post, other than...
Alan: Thanks--I was able to download McCabe's article on Theodorus's methods and answer my question. The previous reference I had was incorrect. --John...
... A Fermat prime <http://mathworld.wolfram.com/FermatPrime.html> is a Fermat number <http://mathworld.wolfram.com/FermatNumber.html> Fn = 2^(2^n)+1 that is...
I am a math/physics/electronics specialist as well as a very spiritually in-tuned. Looks like the last discussions have been numerology inclined. I will do my...
COMING today @ 12 noon 90.7 KPFK Radio Interview the Sound Exchange with Jay Kugelman Alan Michelson <amichelson2002@...> wrote: Gregg Fleishman was on...
For those who are interested... Visit this website: http://home.att.net/~bob.rutkiewicz/physics.htm However, no mathematical equations found on this site... ...
Hello Dome People, I have a 22.68 Foot diameter 4-v Geodesic dome made of 1 inch conduit. This dome uses Hubs that were designed to speed and simplify...
Hi Alan From what I see, there are 9 different triangles for the 5f triacon at the domeclimber.com link. How many are there for Pete's 6f dome? There must be a...
... I went to id:A097108 - OEIS Search Results <http://www.research.att.com/%7Enjas/sequences/A097108> and I found "FORMULA: Satisfies a linear recurrence...
Hi all: I'm interested in figuring out a general algorithm for mapping 2D images onto adjacent triangles of geodesic surface (for different frequency...
Hey guys, I had made a whole bunch of animations of as many polychora as I could get net data (or figure it out) for back in 2004. I've finally found them,...
Burt~ Thank you so much for posting this!!! I have a 7 year old son (just turned 7 on Sunday). He is the reason I belong to this group...his favorite things...
Hey, Rybo: This <http://tech.ph.groups.yahoo.com/group/Polytopia/photos/view/4133?b=1> looks like the 6 Gr C's of the Icosahedron. Notice the six colors that ...
Hi everyone, Hope this is ok to post here... You can see a list of my groups on Grouply at the link below. Maybe you'll find some you want to join. ron Here's...
Jenn, I can't tell you how much it pleases me that your son will like these animations. :-) Thank you so much for saying so - and I think we can all look...
I uploaded two new photo albums, Geodesic Sphere and Zome Constructions, to the Polytopia photos. The Geodesic sphere is six frequency made from coffee...
Allen~  Many thanks for these stunning pics! My little guy (he just turned 7!) wants to know if he can print them out so he can try to build the Zome...
Jenn, I'm glad your son enjoyed them. Of course you can print them out. They were put there to share. :) Allen On Oct 20, 2008, at 7:13 PM, jennifer kurtz...
The result generalizes to any n-dimensional simplex <http://en.wikipedia.org/wiki/Simplex> in the obvious way. If the set of vertices of a simplex is...