Re: 1st Year Geo. Question / Impact

[Stan Friesen <swf@ElSegundoCA.ATTGIS.COM>]

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.

swf@elsegundoca.attgis.com              sarima@netcom.com

The peace of God be with you.