Wow and I thought I would never use that particular Metallurgy class again! The word plumbum is Latin for lead and is why the Periodic Table uses Pb as the symbol for lead.The Romans used lead as aqueduct piping and as decorative paint on plates - needless to say that the average Roman accumulated an unhealthy level of lead in his/her system if they lived long enough. The word argentum is Latin for silver and is why the Periodic Table uses Ag as the symbol for silver. The Greek armies used to fall sick due to periodic stomach illnesses and the soldiers were sick more often than the officers - the soldiers used tin cups and the officers used silver cups. What's the big deal - silver is a natural biocide and killed the little creatures that were in whatever lake the Greek army was drinking out at the time! *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************