Wagner Lipnharski wrote:
<<big cut>>
> I wonder what would happens to this effect if the planet was a spinning
> cylinder, not a sphere, when all the curved surface would be at the same
> rotational speed...  at least we would have a better map. :)
>
> Wagner

surface velocity would be constant but centre of mass would be at middle
of cylinder, not an axis. As a result, mass falling near middle of
cylinder would fall faster and loose speed more rapidly. Therefore,
circulation vortex outer flow direction would be against cylinder
rotation at middle of cylinder and with cylinder rotation at ends.

As a thought experiment: Consider a skinny torus rotating on an axis at
right angles to the earth's axis ie passing through the poles, of radius
greater than the earth's. Essentially a gyroscope. now provide bearings
and a gear system or other to collect energy off the earth's rotation
relative to the plane of the torus's greater circle. Energy for all
until humanity is not as we know it ?

regards,
Graham daniel.