And an interesting article on khipus. Too bad they don’t actually know anything.
string, books, plants, books, string
About the author
Sarah Goslee has been doing stuff with string for quite some time, and describing it to others online since 1996 or so at Phiala's String Page. Science and fiction are located here.Find me all around the Internet: Ravelry (account required), Flickr, LibraryThing, Twitter, and Goodreads.