The press release they linked to explains how it would be used for other applications: “This discovery means that the fibrous structures found in limpet teeth could be mimicked and used in high-performance engineering applications such as Formula 1 racing cars, the hulls of boats and aircraft structures. I'd encourage you guys to read the press release as well. It talks about how size is a factor a little more clearly--it seems that the limpet teeth are not stronger as a result of their size, but because of their composition and shape. The "secret to their strength" has very little to do with their size. Also, it doesn't have the same commentors as the Washington Post, so that's a plus.Limpets need high strength teeth to rasp over rock surfaces and remove algae for feeding when the tide is in. We discovered that the fibres of goethite are just the right size to make up a resilient composite structure.