|
|
|
|
|||||
|
||||||
Subject: Re: Errors in Cotter's book, updated
From: Fred Hebard (Fred@XXX.XXX)
Date: Thu Jan 09 2003 - 14:51:45 EST
One quibble with George Huxtable. He wrote:
>The second-difference is the effect of curvature of the declination plot,
>and would have its greatest effect near a solstice (not in May as Fred
suggests).
The reason I chose May was because at the solstice the rate of change
in declination, the first difference, is close to zero, so it doesn't
matter what the second difference is. In May, there is still a
significant first difference, but the second difference is also
becoming large, to reach maximum at the solstice. The second
difference was zero at the equinox.
--------------------------------------------------------------------------
Frederick V. Hebard, PhD Email: mailto:Fred@XXX.XXX
Staff Pathologist, Meadowview Research Farms Web: http://www.acf.org
American Chestnut Foundation Phone: (276) 944-4631
14005 Glenbrook Ave. Fax: (276) 944-0934
Meadowview, VA 24361
|