Dang gugi, nice razors and good physics.


Well, I did say that it had been a long time, and it was only my minor.

I'll have to pull out my old text books this week, but suddenly I'm thinking that I was mixing up parts of the rules for a solid sphere and hollow sphere and ending up with something that was wrong for both. I did remember that there was no net gravity at the center, but didn't bother to mention since I was already pretty far afield from the point.

Correct me if I'm wrong again, but isn't it right that there is no net gravity at any point inside a hollow sphere with a massive & uniform shell, but standing on the outer surface, the gravity would be the same as if the sphere was solid with the same mass and outer volume?