The Mathematical Secret of Viking Jewellery

One of the really valuable online resources for a physicist who wants to extend his horizon every now and then is the arXiv blog - picking out the gems from the hundreds of daily fresh preprints. Today, the blog editors have found a really nice one again. "The Mathematical Secret of Viking Jewellery" points us to an article connecting Viking gold and silver bracelets with the theory of maximally twisted wires. "Hidden Beauty in Twisted Viking Neck Rings", arxiv:1008:4306. Worth a look!