>From many a flaky idea a catalyst springs and someone says if I mix A with Z and play with F hey presto look at my new world beating invention! The long in the tooth and wise old scientists and engineers then all look bewildered, scoff, and then think @#$%^& why didn't I think of that? Such is the mother of invention! Colin -- cdb, bodgy1@optusnet.com.au on 13/11/2002 -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu