Re: Armillary Dial

2005-07-15 Thread gf_merid
Dear Karlheinz, I am very interested on the subject "fist sundials with the gnomons parallel to the polar axis" and for this reason I ask you where I can find other information on this matter or also some photo of the Roman sundials of this kind. Thanks you very much Gianni Ferrari >-- M

Re: Save the Leap Second

2005-07-15 Thread Gordon Uber
From the figures in the Metrologia article, about half of the effect is due to tidal I would think a manua At 22:28 7/13/05, Thaddeus Weakley wrote: If there was a table or formulaic way of predicting the growing time decrepancy over years, decades, etc. then correction for the proper fracti