Erik Reikes wrote:
[snip]
> Your rock spinning in the cosmos has a temperature and is therefore
> radiating electromagnetic energy.  The rotational kinetic energy also
> causes it to radiate some energy as well.  Eventually (sometime after you
> are dead) it will stop rotating due to this energy loss.  Something else to
> think about re: stopping friction.  There is no such thing as a perfect
> vacuum.  In deep space there is something like 1-2 atoms per cubic meter.
> As you bump into those you will slow down.

I don't care if it will stop spinning in 1000 years, I just would like
to have a large mass spinning to "expose & block" a large amount of
solar wind and irradiation over a vast quantity of gas in a chamber. Gas
expansion/retraction could be used to generate movement, thus energy (in
space).

In real, there is a natural difficult to understand a free (almost)
rotational model. If you think about the tangential escape forces that
act over each single atom all the time. The curved movement is clearly a
demonstration of the free inertia suffering angular deviation what
should (I think) create an internal atomic friction and mass instability
toward the external part of the mass.  It turns to be worse to
understand if you include a vector velocity in the subject, what creates
a speedier side at the mass, the side that in the rotational model goes
toward the vectorial destination.

Thinking about it, the earth's surface speed (relative to a fixed point
in the universe) is higher at the external side (night), and slower at
the internal (day). But it can be reversed, isn't?  Put the sun in the
middle, earth rotating around the sun in a horizontal plane (clockwise -
looking from the top), if it rotates over its shaft also clockwise then
the "day side" has a slower surface speed.  Would this speed alteration
change (even in small measurement) our gravity effect (tangential escape
effect)? It could means that during the day I can have few more
milligrams?  If variations in speed changes energy associated to a mass,
then what happens to the energy associated to a single atom in a
rotational model that also has a vectored inertia, when this atom
changes speed twice during each model rotation? Is this energy
transferred from one model side to another back and forth?

I have those doubts, you see, I can't sleep sometimes at night because
of it... well, the bank account also helps it, but... it can be a "light
head" during the night, few milligrams...

;)