I guess the ice melted, flowed into the oceans and the whole planet is closer to hydrostatic equilibrium. The crustal rebound must have a counterpart in ocean-basin depressing (since presumably magma is an uncompressible liquid).
Pete. On Thu, 27 Jan 2005, Clive D.W. Feather wrote: > Markus Kuhn said: > > The US and UK are > > actually no different from that, except that the subtle differences > > between GMT and UTC have escaped political attention in these two > > countries so far, and as a result, they still have a technically rather > > vague definition of time in their law books, > > Actually, UK law is clear that civil time is GMT/GMT+1. > > Last night I found myself talking to a UK legislator on the matter of UTC > versus GMT. We got as far as the quadratic nature of the TAI-UT1 > difference, and that it was smaller than expected because - according to my > reading - of crustal rebound following the last ice age. > > At which point we were both confused about the physics involved. If the > crust is rebounding after being compressed by ice sheets, surely the > earth's moment of inertia will increase and the rotation should slow *more* > than otherwise expected. So can someone unconfuse us, please? > > -- > Clive D.W. Feather | Work: <[EMAIL PROTECTED]> | Tel: +44 20 8495 6138 > Internet Expert | Home: <[EMAIL PROTECTED]> | Fax: +44 870 051 9937 > Demon Internet | WWW: http://www.davros.org | Mobile: +44 7973 377646 > Thus plc | | >
