Re: pinhole moon / earth interaction

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From: Gary Horne (garyhorne@mac.com)
Date: Wed Mar 24 2004 - 13:21:19 PST 

Date: Wed, 24 Mar 2004 13:21:19 -0800
Subject: Re: pinhole moon / earth interaction
From: Gary Horne <garyhorne@mac.com>
Message-Id: <314ED4FB-7DD9-11D8-A2AB-000393C56758@mac.com>

So, the energy comes from the Earth's rotation? Is the Earth slowing
down?

gary

On Wednesday, March 24, 2004, at 11:49 AM, Paul Doherty wrote:

> Hi Peter
>
> Lunar gravity tugs on the surface of the earth with a force raising a
> tidal bulge. However the force creates an acceleration of the surface
> of the earth, which creates a velocity, which creates a displacement,
> So there is a time delay between when the bulge is pulled on and when
> it reaches its maximum height.
> The rotation of the earth caries the tidal bulge forward of the earth
> moon line during this time delay. The bulge is actually a little in
> front of the moon and so pulls it forward adding to its orbital energy
> and raising its orbit.
>
> Paul D
>
>
>
> On Wed, 24 Mar 2004 11:33:22 -0500
> "peter rust" <mroxidation@hotmail.com> wrote:
>>
>> hi pinholers,
>>
>> i have a question that has been bothering me for a while regarding
>> the earth and the moon. I can see how the Earth's spin is slowing
>> due to friction with the tidal bulge... i think. The issue I have is
>> how that is related to the moon getting further away from the Earth
>> each year. Where does the moon get this extra energy? I get the
>> idea of conservation of angular momentum... which is how it is
>> explained in some books... but i don't get it what is the method of
>> energy transfer from the Earth to the moon... help
>>
>> peter
>>
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