[griffin]

musta had a significant chunk-o-mass move a little closer to the earth's core. Assuming that nothin' moved out further as a result, and using conservation of angular momentum, we just speed up a little. Just think of a figure skater spinning....when she pulls in her arms she rotates faster.

[First_Salute]

3 thousandths faster --- how does that affect the leap year thing?

[P.O.E.]

Thanks.

So if I understand you correctly, at one extreme, the theoretical case would be if this mass fell into an empty underground pocket of air (same volume) the result would be more relative mass closer to the core. In which case we'd see a permanent effect.