That's official: there *is* one! http://scientificamerican.com/article.cfm?chanID=sa006&articleID=C70B95A7-E7F2-99DF-3BAE7FAFCA1D414F :-) -- Michel Bardiaux R&D Director T +32 [0] 2 790 29 41 F +32 [0] 2 790 29 02 E mailto:mbardiaux at mediaxim.be Mediaxim NV/SA Vorstlaan 191 Boulevard du Souverain Brussel 1160 Bruxelles http://www.mediaxim.com/