Originally posted by zinder
You know, hollow means the mass is outside, around a mostly empty place?
So if enough mass is in the hull, and the inner hole is big enough, gravity pulls you towards the hull and not to the center. (for a hole in the center of the world)
You are wrong here, and I\'ll make a little drawing to prove it.
The
circle is the PS world, and the
red dot is the object that will or will not be pulled towards the the \'hull\'.
As you can see, in the same \'range\' (angle, measured in degrees, radians or gradients), there is little mass in the upper part, and lots and lots of mass below. I have depicted this in
blue.
However, the
mass in top is very close to the
red dot, and the
mass in the bottom is far away from the
red dot.
Both gravity\'s pull and the mass are the result of a formule containing the distance, but squared, so the result will be that the red object will not be pulled towards the hull.
For almost the same reason (only not with gravity), there is no electrical field within a hollow object that conducts current.
And if this goes over your head, nevermind.
(if I go wrong somewhere in the above, feel free to point out my errors)
