NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Japan earthquake speeds earth's rotation
From: Gary LaPook
Date: 2011 Mar 15, 03:58 -0700
From: Gary LaPook
Date: 2011 Mar 15, 03:58 -0700
I think this is an error.
"The closer the mass
> shift during an earthquake is to the equator, the more it will speed up
> the spinning Earth."
moving the mass closer to the center of rotation will cause a speed up due to the "pirouette effect" which is actually a manifestation of the conservation of angular momentum.
gl
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