On Wed, 27 Feb 2008, Martin wrote: > You want a materials' scientist or a glass/ceramic engineer. > Most chemists don't know anything about crystals or phase diagrams. > - > Martin That's like saying most doctors (MD) don't know anything about patients :-) Regards Sergio -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist