Dear Larry, Like many others on this list I found the link that you posted about the Antikythera mechanism fascinating.
http://www.cnccookbook.com/CCOrreryNotes.html For those who want further technical detail, there is quite a good account in the latest, December 2009, issue of Scientific American. Health Warning: this article has kept me up two nights pondering gear ratios and it is becoming a serious distraction! Frank King --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
