Re: RATE Vol. II

Sorry, I've been running errands all day. Keith's answer pretty much covers
everything. "Rare Earth" and "The Privileged Planet" both explain this point in
detail.

--- Randy Isaac <randyisaac@adelphia.net> wrote:

> I'm not sure I follow. Why is plate tectonics necessary for a planet to
> sustain life? It was probably necessary to produce the particular earthly
> configuration we see today but why would it be true in the more general case
> that plate tectonics is necessary to sustain life?
>
> Randy
> ----- Original Message -----
> From: "Bill Hamilton" <williamehamiltonjr@yahoo.com>
> To: "Randy Isaac" <randyisaac@adelphia.net>; <asa@calvin.edu>
> Sent: Thursday, May 18, 2006 10:33 PM
> Subject: Re: RATE Vol. II
>
>
>
> > In fact radioactive decay helps produce the heat necessary to keep the
> > magma
> > liquid, which in turn supports plate techtonics, which many
> > astrobiologists
> > consider necessary for a planet to sustain life.
> >
> > Bill Hamilton
>
>

Bill Hamilton
William E. Hamilton, Jr., Ph.D.
248.652.4148 (home) 248.821.8156 (mobile)
"...If God is for us, who is against us?" Rom 8:31

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Received on Fri May 19 22:15:02 2006