>As you are aware, I have considered Carey's earlier model. This one on
>global torsion would require an external force as near as I can see. You
>are talking about placing a differential torque on the crust of the earth.
>I don't see how the plastic mantle and core could do that.
Cometary impact could. There may be other sources of anisotropic energy
available as well (i.e. gravitational perturbations)
Art
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