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Science > Electromagnetics > Re: magnetic fr...
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Re: magnetic frequencies of the earth's field

by "amdx" <amdx@[EMAIL PROTECTED] > Jul 24, 2008 at 01:06 PM

A bit OT, but any idea why comp***** are inaccurate in certain
locations as indicated on aviation sectional? Here is an example:
http://www.lazygranch.com/temp/magnetic_disturbance.gif

  I have a local bridge that I drive over, at one part of the bridge my 
compass
rotates by 45*.
                  Mike




 26 Posts in Topic:
magnetic frequencies of the earth's field
 "amdx" <amdx  2008-07-23 12:42:48 
Re: magnetic frequencies of the earth's field
 James Arthur <bogusabd  2008-07-23 19:03:57 
Re: magnetic frequencies of the earth's field
 John Larkin <jjlarkin@  2008-07-23 14:02:32 
Re: magnetic frequencies of the earth's field
 Dirk Bruere at NeoPax <  2008-07-23 23:07:49 
Re: magnetic frequencies of the earth's field
 Martin Griffith <mart_  2008-07-24 00:19:55 
Re: magnetic frequencies of the earth's field
 Dirk Bruere at NeoPax <  2008-07-24 00:27:30 
Re: magnetic frequencies of the earth's field
 Robert Baer <robertbae  2008-07-23 22:53:07 
Re: magnetic frequencies of the earth's field
 MooseFET <kensmith@[EM  2008-07-23 17:30:42 
Re: magnetic frequencies of the earth's field
 John Larkin <jjlarkin@  2008-07-23 20:40:41 
Re: magnetic frequencies of the earth's field
 Robert Baer <robertbae  2008-07-23 22:57:04 
Re: magnetic frequencies of the earth's field
 James Arthur <bogusabd  2008-07-24 08:51:11 
Re: magnetic frequencies of the earth's field
 John Larkin <jjlarkin@  2008-07-24 11:08:50 
Re: magnetic frequencies of the earth's field
 "amdx" <amdx  2008-07-24 13:12:31 
Re: magnetic frequencies of the earth's field
 miso@[EMAIL PROTECTED]   2008-07-23 20:34:12 
Re: magnetic frequencies of the earth's field
 Robert Baer <robertbae  2008-07-23 22:55:49 
Re: magnetic frequencies of the earth's field
 "amdx" <amdx  2008-07-24 13:06:16 
Re: magnetic frequencies of the earth's field
 Robert Baer <robertbae  2008-07-23 22:52:04 
Re: magnetic frequencies of the earth's field
 MooseFET <kensmith@[EM  2008-07-24 06:28:49 
Re: magnetic frequencies of the earth's field
 MooseFET <kensmith@[EM  2008-07-24 06:31:13 
Re: magnetic frequencies of the earth's field
 MooseFET <kensmith@[EM  2008-07-24 06:33:15 
Re: magnetic frequencies of the earth's field
 James Arthur <bogusabd  2008-07-24 22:22:26 
Re: magnetic frequencies of the earth's field
 Dirk Bruere at NeoPax <  2008-07-24 23:48:31 
Re: magnetic frequencies of the earth's field
 Robert Baer <robertbae  2008-07-23 22:50:18 
Re: magnetic frequencies of the earth's field
 Martin Brown <|||newsp  2008-07-24 09:58:14 
Re: magnetic frequencies of the earth's field
 MooseFET <kensmith@[EM  2008-07-24 06:42:44 
Re: magnetic frequencies of the earth's field
 "Paul Hovnanian P.E.  2008-07-24 14:10:48 

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tan12V112 Fri Nov 21 6:24:28 CST 2008.