Orbital mechanics question (moon)

From: John Doe (jdoe_at_doe.org)
Date: 10/05/04 

Date: Tue, 05 Oct 2004 06:00:53 -0400

The moon literally moves oceans by creating tides which have a lot of energy
(and in fact some of it is converted to electricity with tidal power dams).

Does the gravitational pull of moon against the moving oceans result in the
moon actualy losing kinetic energy (which would mean that its orbit would
decay over time ?)

If the moon's orbit does not in any way lose any energy even though it moves
oceans, where does the energy that creates the tides come from ?

Or is this an example of a perpetual motion machine that never loses any
energy ?

Relevant Pages

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