Re: [Phys-L] Perpetual Motion Machine, Earth as

[Bernard Cleyet <bernardcleyet@redshift.com>]

On 2015, Apr 01, , at 20:02, brian whatcott <betwys1@sbcglobal.net> wrote:

> ------------------------------------------------------------------------
>
> Might as well open this one up for critique:
>
>
> Earth is a better perpetual motion machine than anything on it could ever
> be, say, relative to a human lifetime.


I understand the moon is “withdrawing” from the earth, because of the tidal interaction.  This means the “friction” loss will be reduced to the point that the solar induced tide will dominate?   Does the earth “withdraw” from the sun also, no?   Will this withdrawal result in orbital modifications resulting in collisions before envelopment  by the expanding sun?


bc  thinks “nice” maths problems.  And first heard of the increasing lunar orbital radius from a talk on the grunion spanning, timed by the lunar cycle.  (Sta. Barb. Amateur Radio Club (ca 1955)  


http://www.dfg.ca.gov/marine/grunionschedule.asp