Mathematical Digest
Short Summaries of Articles about Mathematics in the Popular Press"Tying Physical Theory into Stable Knots," by Ivars Peterson. ScienceNews, 3 May 1997, page 270. This brief article describes recent work linking knot theory, which is a branchof mathematics, to field theory, which is used to describe many physicalphenomena. Researchers have for the first time found knotlike structuresarising in solutions to certain equations in field theory. This work hasconnections to string theory and liquid crystals.  Allyn Jackson
