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Re: 1st Year Geo. Question / Impact
From: RMarguls@cybercomm.net (Robert Margulski)
> >..... The explanation
> >was the the tidal friction in the Earth/Moon system was slowing the
> >rotation of the Earth resulting in fewer days per year.
> Is the 'fewer days per year' a constant number or is there any evidence
> that some outside force (celestial impact, or near miss) caused a rapid
> deceleration in some years?
There is no evidence of cataclysmic changes in day length.
The estimated days/year in the past based on varves and the like
almost exactly matches the expected count based on computations
of tidal slowing using standard physics.
> What about the length of the day changing?
Same thing: longer day = fewer days per year.
The peace of God be with you.