At 08:23 PM 12/5/2005 -0800, spike wrote: > But why is it that >snowflakes seem to have this pi/3 symmetry? but seriously: spontaneous broken symmetry, of course: http://www.sciam.com/askexpert_question.cfm?articleID=00025ADD-C9A7-1C71-9EB7809EC588F2D7