Kalpana one

Al Globus wrote:

>To avoid using 1g area for agriculture. The size of the 1g area drives the
>surface area, which drives the shielding, which drives the mass
>requirements, which is probably the tallest pole.
>
Hmm. Interesting point. Instead of using spherical endcaps which don't
have very usable surfaces, you could theoretically consider having
conical endcaps. Cone shapes are reasonably easy pressure vessels to
manufacture.

That way you could use them for agriculture- plants don't care as much
about low g.

Cone shapes also give you a way to evacuate in an emergency.