Re: Pinhole Digest #875 - 03/23/02

Date view Thread view Subject view Author view Attachment view

From: Tom Woosnam (twoos@csus.com)
Date: Sat Mar 23 2002 - 15:03:02 PST 

Message-id: <fc.000f5b5a003380633b9aca00223fbe9c.338069@csus.com>
Date: Sat, 23 Mar 2002 15:03:02 -0800
Subject: Re: Pinhole Digest #875 - 03/23/02
From: "Tom Woosnam" <twoos@csus.com>

pinhole@exploratorium.edu writes:
>----------------------------------------------------------------------
>
>Subject: Re: Magnetic declination
>From: "Adam Singer" <adamsinger@earthlink.net>
>Date: Fri, 22 Mar 2002 07:30:33 -0800
>
>It is my understanding (but of course I may be wrong) that magnetic
>declination changes (drifts) over time for a particular location, and can
>change many degrees
>over a few years. How old is the textbook that shows the declination /
>the map your student uses?
>
>-- Adam Singer

-----------------------------------------

It was published in 98 but the map is the same as the one I've seen in
older books so you could be right.

Thanks for the idea Adam.

Tom Woosnam

Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.3 : Mon Aug 05 2002 - 09:21:41 PDT