Re: [Phys-l] Earth's axis shift--measured how?

["Craft, Peter" <PETER.CRAFT@det.nsw.edu.au>]

While I am wary of Proof by Assertion or Proof by Textbook, as JD is fond of warning us against, I merely put forward this link for consideration in this thread about measuring axial tilt...

http://www.scientificamerican.com/blog/post.cfm?id=how-the-earthquake-in-chile-changed-2010-03-02

Regards

Peter Craft
Head Teacher Science
Corowa High School
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