I think I have spotted another Middle Earth Physics violation,
JRRT claimed that the Sun and Moon were derived from fruit.
Now cheese maybe but fruit, naaaah!
(OK its in the Silmarillion but the very same Sun and Moon were depicted in the movie RoTK, though their parts were acted by a gigantic mass of fusing hydrogen and helium with a surface temperature of more than 5000 C and a 2000 mile diameter lump of rock, respectively, which I think worked quite well)
