To the naked eye, it looks like a fleck of tile decorated with the Greek letters alpha and omega. But when it is magnified by a factor of 600, its true nature becomes evident — the world’s most portable copy of the New Testament. According to the latest version of Guinness Book of World Records, the five-millimeter-square tablet is the smallest reproduction yet of a printed book.



It was created in 2001 by two scientists in the field of object recognition, Pawan Sinha and Pamela R. Lipson, both 36 years old and husband and wife, who call it a tool for archiving and authentication.
More here.