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Argos
2003-Jun-16, 01:47 PM
If Kepler could only see this...

http://science.nasa.gov/ppod/y2003/13jun_hebesphenomegacorona.htm?list435977

kilopi
2003-Jun-16, 02:26 PM
Cool. That page links to the Mathworld Hebesphenomegacorona page (http://mathworld.wolfram.com/Hebesphenomegacorona.html), which links to the Johnson solid page (http://mathworld.wolfram.com/JohnsonSolid.html). I think #12, the Triangular dipyramid, #13 the Pentagonal dipyramid, #17 the Gyroelongated square dipyramid, #51 the Triaugmented triangular prism, and #84 the Snub disphenoid are interesting since their faces are all equilateral triangles.

Argos
2003-Jun-16, 03:49 PM
Very cool links Grapes. 3-D geometry fascinates me. Tks.

Iain Lambert
2003-Jun-16, 04:39 PM
OK, so who else kept being reminded of various Elite ships while looking through that lot?

Dickenmeyer
2003-Jun-19, 03:54 AM
I have this sudden urge to get paper, scissors and tape...
My favorites were the variously augmented truncated dodecahedrons, 68-71.

Karthesios
2003-Jun-19, 07:04 AM
Elite ships:
Cuboctahedron and Dodecahedron = space stations

In high school geometry, I made up a set of the platonic and several Archimedean solids with paper, and held them together with tape...took hours to make a snub dodecahedron.

TriangleMan
2003-Jun-22, 06:16 PM
I think #12, the Triangular dipyramid, #13 the Pentagonal dipyramid, #17 the Gyroelongated square dipyramid, #51 the Triaugmented triangular prism, and #84 the Snub disphenoid are interesting since their faces are all equilateral triangles.

I couldn't agree more. I love triangles! :D

tracer
2003-Jun-22, 06:47 PM
From the article linked to in the OP:

Now we know there are nine planets, not six,
... except that Pluto shouldn't count, of course.

<ducking and running>

TriangleMan
2003-Jun-22, 06:53 PM
From the article linked to in the OP:

Now we know there are nine planets, not six,
... except that Pluto shouldn't count, of course.


Duh, they're probably counting PX. :P :wink:

kilopi
2003-Jun-22, 07:34 PM
From the article linked to in the OP:

Now we know there are nine planets, not six,
... except that Pluto shouldn't count, of course.
Not being able to count doesn't mean that you're not intelligent (http://www.badastronomy.com/phpBB/viewtopic.php?p=105275&highlight=#105275), necessarily.

Argos
2003-Jun-23, 01:51 PM
How about 4-D solids?

http://www.ics.uci.edu/~eppstein/junkyard/highdim.html