Search found 90 matches
- Fri Nov 02, 2012 8:31 am
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 96049
At first reading, I thought that this was pretty straightforward to construct. I assumed that there was plenty of leeway in the choice of the equatorial pentagons, but a first quick model has proven me wrong. I'll have to read the details more carefully next time. The maths in the subsequent section...
- Wed Oct 31, 2012 3:27 pm
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 96049
I think Chapter 24 contains some equations or whatever they are - it keeps on saying it's simple - for the dimensions of the two types of pentagon. I wouldn't have a clue how to use them. I wonder if one way would be to make a couple of seven sided "pyramids" , and to mount them on a pencil or the ...
- Tue Oct 30, 2012 5:27 pm
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 96049
I may be wrong, but I think that you can start by drawing a pentagon that has similar angles to the 14 pentagons around the equator of the figure. I don't think that you need to be precise, so long as you make it symmetrical. Make 14 of these and arrange them into a ring. The remaining pentagons tha...
- Tue Oct 16, 2012 6:43 pm
- Forum: Stella Forum
- Topic: Special Colour Arrangement in v5
- Replies: 2
- Views: 17211
- Tue Oct 16, 2012 5:10 pm
- Forum: Stella Forum
- Topic: Special Colour Arrangement in v5
- Replies: 2
- Views: 17211
Special Colour Arrangement in v5
I may be having a "duhu moment", but I'm not able to use the special colour arrangements. After installing the latest release, I displayed an icosahedron and selected one of the 5-colour arrangements, but all of the faces remained the same - using the default, single colour.
Pete K
Pete K
- Fri Sep 28, 2012 6:31 am
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 96049
- Thu Sep 27, 2012 3:41 pm
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 96049
Gilson: Polyhedra - A New Approach
Noticed a new book on Amazon the other day, so dipped into my piggy bank. Its by Bruce R. Gilson and the "new approach" is to consider polyhedra from the perspective of axial symmetry. It only arrived a couple of hours ago, so I can't provide a review yet, but I thought I'd let you all know there wa...
- Sun Sep 02, 2012 7:00 pm
- Forum: Stella Forum
- Topic: Other complementary 3D educational software?
- Replies: 1
- Views: 15335
You might take a look at WinGeom from peanut software, if you haven't already done so http://math.exeter.edu/rparris/wingeom.html
I'd recommend that you work through some of the tutorials as that's the best way to get to grips with the program.
Pete K
I'd recommend that you work through some of the tutorials as that's the best way to get to grips with the program.
Pete K
- Wed Jul 04, 2012 3:25 pm
- Forum: Polyhedron Models
- Topic: Faceted and subdivided Dodecahedron
- Replies: 5
- Views: 41363
- Wed Jul 04, 2012 2:05 pm
- Forum: Polyhedron Models
- Topic: Faceted and subdivided Dodecahedron
- Replies: 5
- Views: 41363
Kathy, Thanks, that's a lot clearer. I see you've threaded each of the cells for added strength; what did you use - wire ? was it very fiddly ? I'm thinking of doing another vertex-connected model that might benefit from a similar approach. I did experiment using some linen thread on my previous edg...
- Tue Jul 03, 2012 7:07 pm
- Forum: Polyhedron Models
- Topic: Faceted and subdivided Dodecahedron
- Replies: 5
- Views: 41363
- Tue Jun 19, 2012 3:11 pm
- Forum: Polyhedron Models
- Topic: Premières photos de la construction du 902 faces- aapdkD
- Replies: 2
- Views: 30909
- Thu Mar 15, 2012 11:34 am
- Forum: Polyhedra
- Topic: Icosahedon 5 compound - anyone tried making one?
- Replies: 7
- Views: 41063
- Wed Mar 14, 2012 4:35 pm
- Forum: Polyhedra
- Topic: Icosahedon 5 compound - anyone tried making one?
- Replies: 7
- Views: 41063
- Wed Mar 14, 2012 4:23 pm
- Forum: Stella Forum
- Topic: Please tell us about your polyhedra and post photos!
- Replies: 1
- Views: 13781
Re: Please tell us about your polyhedra and post photos!
I've been fascinated by polyhedra ever since 1961 or thereabouts when I got introduced to them at school. From time to time I post photos of my own polyhedra on here (via Photobucket) - Peter Kane shows some of his too. Please tell us about some of the polyhedra that you've been making, and post ph...