Re: Two questions

Dear Zdenek Jizba:

"Zdenek Jizba" <jizba@xxxxxxxxxxx> wrote in message
news:wz4fe.740$w81.359@xxxxxxxxxxx
> These questions are strictly hypothetical.
>
> Question 1.
> If the earth expanded at the same rate as the
> universe, how much would the radius increase in 1
> million years?

Excellent response by Bjoern Feuerbacher.

> Question 2.
> Were all planets at the same distance from the
> sun 100 million years ago as they are today?

The only thing I can add is that the Moon has left a pretty
continuous record in "tidal rhythmites" over the last 2 billion
years. Not that the lunar recession is entirely (or at all) due
to universal expansion. In lunar recession, angular momentum
transfer from the spinning Earth to the Earth-Moon system is the
major player. No such mechanism in Universal expansion, unless
Dark Energy is the player.

David A. Smith


.

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