On 23/08/04, Mike Richter wrote: > Arguing this technology with Jerry is about as wise as disputing > mathematical physics with Stephen Hawking - except that Jerry *can* > communicate when one is not excessively simple. Well, Hawking recently admitted to being wrong about one of his major theories, after about thirty years. I have seen no scientific evidence or tests here, only a blanket out-of-hand dismissal of the possibility that there could be any advantage. I don't know if there is an advantage, but the extra manufacturing cost is small; so if there is an advantage, then black polycarbonate would be worth while. People who are very certain about something are often wrong. Regards -- Don Cox [log in to unmask]