Feature Math Swirling Seas, Crystal Balls Spirals of triangles crinkle into intricate structures Share this:FacebookTwitterPocketRedditPrintEmail By Ivars Peterson October 17, 2006 at 7:21 pm This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe