@Doomhammer
I did inform before comment,
you might be interest by what Nasa says about it
http://spaceplace.nasa.gov/ice-dwarf/
you can find some schemes showing how it works
http://spaceplace.nasa.gov/review/ice-dwarf/SolarSystem_top.en.gif
Perhaps there is a confusion between revolution (around the sun) and rotation (on itself).
Btw, i'm impressed by the quality of all the files you shared (thanks)
http://www.algodoo.com/algobox/profile.php?id=4322
