Thread: Riding the Tide
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DSK
 
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Peter, thanks for your educational posts.

Peter S/Y Anicula wrote:
On both sides the change in gravitational pull from the moon reduces
or counteracts the gravitational force of the earth on the
water-molecule(making it lighter, so to speak).
This should explain why there is to tides a day, one when the moon is
culminating and one when it is on the other side.


I would think that when the moon is on the opposite side, it's
gravitation effect would be cumulative, acting to depress the water
level. But it would be far less than when it's overhead, and the water
has been put in motion. My (relatively vague) understanding of the
science behind tides is that it's partly gravity and partly harmonics.

Fresh Breezes- Doug King