[LEAPSECS] Far past and far future

Clive D.W. Feather clive at davros.org
Tue May 24 18:01:35 EDT 2011

Lunar laser ranging says that the length of day is increasing by about
2.3ms per century in the long term.

But how long term is that? Does anyone have figures on how far back or
forward I can project based on that figure? What was the length of the day
in the time of the dinosaurs?

Oh, and to stop me having to reconstruct the formula from first principles,
does anyone have the relationship between length of day and distance to the

Thanks in advance.

Clive D.W. Feather | If you lie to the compiler,
Email: clive at davros.org | it will get its revenge.
Web: http://www.davros.org | - Henry Spencer
Mobile: +44 7973 377646

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