The July Issue of Scientific American has been released, with details and free content available at the Sciam website. TDG readers will certainly be interested in a long article on "The Mystery of the Voynich Manuscript", by computer scientist and psychology PhD Gordon Rugg. Rugg performed cryptographic analysis of the perplexing medieval document, and concluded that it may have been a hoax made of gibberish. Interestingly though, he also found that the 'hoax' could have been created in the short time of 3-4 months. Other interesting articles also available in full on the SciAm website, as well as teasers for the rest (prefixed with a 'D').