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MathGroup Archive 2001

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Re: Centroid of the Earth's Surface

  • To: mathgroup at
  • Subject: [mg30221] Re: Centroid of the Earth's Surface
  • From: "Henry Lamb" <hlamb at>
  • Date: Thu, 2 Aug 2001 03:16:14 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

I hate to disappoint you, but it can't be done. That's because the 
earth's surface has no centroid. Only bounded surfaces (or volumes) have 
centroids. If Saudi Arabia appears to be at the centre of the earth, 
that's due to the map you're using. Buy a globe.

Henry Lamb

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