good science?

[Martin Hewlett]

edregis at aol.com (EdRegis) wrote:


>Now let me ask you: How about nutation?  This was observed in the time of
>the Greeks, and it is not explained by the Ptolemaic system so far as I
>know, was it?

Sorry abut the delay in responding.  I checked with my astronomical colleagues on this one.  Since nutation results in a difference of about 1 second per year, it is unlikely that the ancient Greeks were measuring the length of the year with enough accuracy to observe this effect.

Martin Hewlett
Dept. of Molec. and Cell. Biology
University of Arizona