Varying G???
Hi Board
Here's an interesting piece on possible evidence for varying G - gravitational constant...
http://au.arxiv.org/abs/astro-ph/0107024
Seems the author has calculated the effects of changing G on the Earth Moon system, deriving a set of solar-years and lunar months which fit various lines of palaeodata, like coral, tidalites and stromatolites. He ends up with the Moon orbitting Earth at about 18,000 km and a day of 6 hours.
Adam