By star tetrahedron do you mean a stella octagula, duo-tet, Merkabah type structure? That is, two tetrahedrons overlapping, that would fit in a cube? If so, I...
1586
Mitch Powell
mitchpowell2
Jul 7, 2009 3:53 am
... I found a template you might find useful: <a href="http://groups.yahoo.com/group/Polytopia/photos/album/2142238186/pic/145370858/view">Star Tetrahedron...
1587
James Lambert
gnostradamus
Jul 7, 2009 4:31 am
Here's a video I put together. I hope you find it to be worth your while. http://www.youtube.com/watch?v=K_dxf_7C9_0 Best, James Lambert...
1588
James Lambert
gnostradamus
Jul 7, 2009 4:33 am
Here's a video I put together. I hope you find it to be worth your while. http://www.youtube.com/watch?v=K_dxf_7C9_0 Best, James Lambert...
1589
jenniyoungkurtz
Jul 7, 2009 12:38 pm
James~ Thank you for sharing this. My little guy (who is now 7) was fascinated with the pearls and how they were joined. He clicked it as a fav :-) Peace~...
1590
caroling@...
carolingy
Jul 7, 2009 1:44 pm
Yes this is a fine video. I learned a lot about things I love. I am eagerly awaiting the next in the series. I can imagine they take a long time to develop. --...
1591
James Lambert
gnostradamus
Jul 7, 2009 8:17 pm
Hello Jenn, Thanks, great to hear. Best, James...
1592
James Lambert
gnostradamus
Jul 7, 2009 8:20 pm
Hello Caroling, Thanks for watching the video. Yes, they take quite a while. Especially as I make them by myself. Best, James...
1593
jenniyoungkurtz
Jul 12, 2009 3:06 am
I KNOW you guys will know what happened to them!!! I haven't let my little man have these because of his younger sister...but she is old enough now. A few...
1594
jenniyoungkurtz
Jul 12, 2009 3:12 am
I wanted to thank all of you for your wonderful suggestions! Reed wanted to tell you guys that he loves the McMullen book...the pictures of 4D were worth the...
1595
Alan Michelson
a.michelson
Jul 29, 2009 2:18 am
Those same colors were used on the St. Petersburg subway system in Russia, before the new Frunzensko-Primorskaya Line. Notice the different combinations of...
1596
roopak vaidya
roopak.vaidya
Aug 26, 2009 10:50 pm
Thank you, I am happy to be a member of this group. ________________________________ From: Polytopia Moderator <Polytopia-owner@yahoogroups.com> To:...
1597
Alan Michelson
a.michelson
Sep 27, 2009 4:46 am
Interesting how they pick the colors for the Saint Petersberg (as well as the Los Angeles) Metro: Red, as we know, is the principle primary color from the low...
1598
Polytopia@yahoogroups...
Sep 27, 2009 12:41 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Polytopia group. File : /Craig's...
1599
cdsgraphics1952
Sep 27, 2009 12:48 pm
Using a lineal spectrum as a terrain heightfield and again as the color map overlay provides a clue to the saturation levels of the spectrum as a file that I...
1600
Alan Michelson
a.michelson
Sep 29, 2009 5:09 pm
... From: cdsgraphics1952 <cdsgraphics@...> Subject: [Polytopia] Re: three stooges To: Polytopia@yahoogroups.com Date: Sunday, September 27, 2009, 5:48...
1601
Alan M
a.michelson
Sep 30, 2009 10:50 pm
... This is explained in http://en.wikipedia.org/wiki/Infinite_skew_polyhedron and http://www.superliminal.com/geometry/infinite/infinite.htm...
1602
Alan Michelson
a.michelson
Oct 1, 2009 2:21 am
... From: Alan Michelson <a.michelson@...> Subject: Re: [Polytopia] Re: three peaks & three valleys [2 Attachments] To: Polytopia@yahoogroups.com Date:...
1603
Polytopia@yahoogroups...
Oct 1, 2009 11:16 am
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Polytopia group. File : /Craig's...
1604
cdsgraphics1952
Oct 1, 2009 11:34 am
I think it would resemble a flattened Monkey Saddle if there were only 4 colors, but the spectrum has 6 dominate (3 peaks & 3 Valleys) as my...
1605
Alan M
a.michelson
Oct 1, 2009 5:31 pm
... 4 colors, but the spectrum has 6 dominate (3 peaks & 3 Valleys) as my Radial_Spectrum_HeightField file illustrates. If there were only 4 colors, then that...
1606
Alan M
a.michelson
Oct 5, 2009 3:21 am
... Actually, I'm talking about leveling the color field flat, so that the average value of the three colors is around 50% (between black and white), not about...
1607
cdsgraphics1952
Oct 5, 2009 11:00 am
You are right about the Monkey Saddle, though I tended to see it as more as a square version of the Calgary Saddle Dome that appeared to have only four...
1608
Alan Michelson
a.michelson
Oct 5, 2009 7:22 pm
I see what you mean: Here's a picture of a hyperbolic paraboloid within a tetrahedral wireframe; in other words, a skew quadrilateral. ... From:...
... From: Alan Michelson <a.michelson@...> Subject: Re: [Polytopia] Re: peaks & valleys To: Polytopia@yahoogroups.com Date: Monday, October 5, 2009,...
1611
jjkostick
Oct 14, 2009 1:19 pm
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...
1612
Alan Michelson
a.michelson
Oct 15, 2009 4:51 am
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. ...
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...
