"Sam Wormley" skrev i en meddelelse news:bx5id.360429$D%.46858@attbi_s51...
Carsten Troelsgaard wrote:
Precession of the Earth is, where I've seen it (see the .pdf link), being presented as a torque
working on Earth periferal bulge eqvivalent to a gravitational pull in a spinning gyroscope
resting
it's end in a pivot.

Obliquity-Induced Precession
http://scienceworld.wolfram.com/phys...recession.html


The link starts:

"Because of the rotational flattening (obliquity) of a planet's figure ... "

I take that flattening and rotational flattening is two different things, - that is, if rotational
flattening = obliquety

Thanks for the link

Carsten