books.google.com - Everybody has used a nutcracker, and this entertaining book describes the many ingenious methods employed and the numerous imaginative designs produced from the eighteenth century to the present day to carry out the apparently simple task of cracking a nut. Considering the heavy use to which they have...http://books.google.com/books/about/Nutcrackers.html?id=ZhxRMPg4Y4gC&utm_source=gb-gplus-shareNutcrackers
