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Thread: GPS altitude
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Old 4th May 2004 | 10:35
  #13 (permalink)  
M14P
 
Joined: Apr 2001
Posts: 231
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From: London UK
Apparently - despite the oblate-ness of our spheroid - the difference between polar and equitorial circumferences is something like 22 miles.

I can't believe I had to learn the phrase oblate spheroid for that!
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