[Celtic Conservative]

I confess to being intrigued myself. Nature as a rule tends not to do straight lines, let alone isosceles triangles.

[Boogieman]

"Nature as a rule tends not to do straight lines, let alone isosceles triangles."

Actually, that's not really true when it comes to minerals and crystals:

[zeugma]

I confess to being intrigued myself. Nature as a rule tends not to do straight lines, let alone isosceles triangles.

That's only somewhat true. Many minerals have inherrent geometric forms becaue of lattice structures.