LAST EDITED ON Jun-06-06 AT 04:25 PM (EDT)
 
>Inside a sphere, the net gravitational attraction sums to zero.

I decided I was being snarky without meaning to. Let me try again.

The net gravitational attraction between the psuedocontinent (PC) and the sphere will equate to 0, since the PC is completely contained within the spherical shell.

The net gravitational attraction between the PC and Zeta Cygni (the star at the center of the sphere) will be some non-zero figure. I can't begin to guess at what it would be, but it would certainly be enough so that the PC would need (a) a support pylon to keep it from 'falling' into the star (which attaches to the sphere and thus makes them one mass for our purposes), or (b) some amount of orbital motion, much like the Earth orbits the sun and thus does not get burnt to a cinder after a few millenia.

Likewise, the net gravitational attraction between, say, J. Random New Avalonian and the PC will be some non-zero figure. Between JRNA and Zeta Cygni? Negligible - much like we don't particularly notice our gravitational attraction to good ol' Sol. Between JRNA and the sphere? Zero - they're inside the hollow sphere.

--sofaspud
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