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Re: Clarification of Question regarding LAN
From: Joel Jacobs
Date: 2004 Aug 4, 17:10 -0400
From: Joel Jacobs
Date: 2004 Aug 4, 17:10 -0400
Hi Robert, I just happen to be hear so ----- Original Message ----- From: "Robert Gainer"To: Sent: Wednesday, August 04, 2004 4:05 PM Subject: Re: Clarification of Question regarding LAN > Chuck said, > >The more traditional way of determining longitude was > >to use a time sight at the time the sun crosses the > >Prime Vertical (i.e., the time at which the sun is due > >east or due west of you). This procedure is described > >in Bowditch and elsewhere. It requires that you know > >your latitude, which you can get from a noon sight or > >from an observation of Polaris. > > Chuck, > I don't understand how that will work. The magnetic variation and the > latitude must be problems in that method. If you are at 23 degrees north > latitude or greater the sun is never due east or west. If you do not know > the magnetite variation with some degree of accuracy wont that have a very > large effect on the method? Is this practical at all? > All the best, > Robert Gainer > > _________________________________________________________________ > Is your PC infected? Get a FREE online computer virus scan from McAfee? > Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963