Iron outside = Iron inside

"Dr. Omni" wrote:
>
> > I would like to re-introduce a completely different approach to asteroid
> > mining to this group. See
> > http://www.nas.nasa.gov/~globus/papers/AsterAnts/paper.html. Basic idea:
> > find very small asteroids (~1 meter diameter) and return the whole thing
> > to Earth orbit. Use a large fleet of solar sail powered spacecraft to
> > get large amounts of returned mass. U...
>
> Hi Al,
>
> And what about the problem of meteoroid rotation, that you pointed out some
> while ago? (I even suggested "touchless dragging", based on diamagnetism, to
> circumvent this problem, though I did not now about the feasibility of the
> suggestion...)

I briefly looked into the touchless dragging based on diamagnetism but
didn't get to the point of doing any numbers (I would have to learn the
physics first and I haven't had the time). In any case, I consider the
rotation problem unsolved for the moment.
>
> Lucio Coelho
>

--
Al Globus
CSC at NASA Ames Research Center
aglobus@..., (650) 604-4404
http://www.nas.nasa.gov/~globus/home.html

The dinosaurs weren't spacefaring. We are. I don't think that's an
accident. Maybe we are life's taxi to the stars.