Can the Moon be given an earthlike atmosphere?

>
> > ... for a colony
> > larger than one
> > kilometer thickness we need curvature on the
> > pressure bulkheads.> >
>
> Roger, a torus is already a curved hull - no flat
> surfaces anywhere.
>
Ed,

The pressure bulkheads separate the internal volume of the torus into
smaller sections so that if the outer hull is punctured only a small
part is depressurized, not the whole volume. The shape of a bulkhead
is a flat circle.

Thanks, Joe, for pointing out that the bulkheads need not be very
massive. Transparent plastic sheeting a few mils thick (visquene)
will do just fine.

My naval experience taught me that compartmentation and double-hull
construction are good safety factors to incorporate into a space
colony. I just forgot that water is a much denser fluid than air, and
building to withstand high pressure is just overkill in space.

For this reason I withdraw my sphere design.