Full G on the Moon or other small bodies?

--- In spacesettlers@yahoogroups.com, "Lucio de Souza Coelho"
wrote:
>
> On 1/11/07, Jake wrote:
> (...)
> > How?? How about throwing the moon out of it's orbit.. Maybe away from
> > the earth or maybe towards the earth.. Either way would be very
bad...
> (...)
>
> I think you took too seriously "Space 1999" and also the movie remake
> of "The Time Machine" from 2002. :)
>
> Throughout its history, the Moon has suffered monstrous asteroid
> impacts. The ones that created the largest craters (not counting the
> impact basins) were probably millions of times stronger than all our
> nuclear weapons exploded together. (Nukes may look impressive under a
> human point of view, but they are nothing compared to forces of
> nature. Any round-of-the-mill volcanic eruption liberates the energy
> of thousands of nukes...) Yet Moon's orbit was not significantly
> altered by that.
>
> I hope that the numbers above make clear that it is *completely
> impossible* anything built by Humanity deviating the lunar orbit in
> the foreseeable future.
>
Maybe... But a ring built around the moon as suggested, or the Taurus
wheel built on the surface as suggested would have to be quite big..
And like I said in the first post.. It would only take one mistake or
miscalculation to have a serious impact... Maybe literally..

All the mining we do on earth stays on earth (for the most part)..
Although the earth is so large we would have a really hard time making
much difference, but we are talking about mining a small body that
orbits our own planet.. Not only that, but removing all the material
mined from that body... Thus reducing it's mass... Right?? Gravity
relies on mass to keep the balance between our two bodies.. Are we
smart enough to take chances with the only planet we have...
I don't think so...