In message <Pine.SOL.3.91.980724084003.18666A-100000@apollo> "Graydon D. Stuckey" writes: > But if you remember your physics, if you don't raise or lower an object, > no work has been done. :-) Unless you heat or rotate it. -- Phil Payne Phone: 0385 302803 Fax: 01536 723021 (The contents of this post will _NOT_ appear in the UK Newsletter.)