posted on Jul, 19 2009 @ 10:50 PM
reply to post by weedwhacker
When talking about tides it is important to note that they are not produced so much by the force of gravity but by the gravity gradient. What produces
tidal effects is the fact that the force of the moon's gravity on one side of the Earth is greater than the force of its gravity on the opposite side
of the earth. This is why high tides occur on opposite sides of the Earth at the same time. The water on the moon side is being pulled more strongly
than the earth is being pulled. At the same time, the earth is being pulled more strongly than the water on the side away from the moon. Because the
moon is much closer to Earth than the sun and gravity obeys the inverse square law, its gravity gradient is much greater than that of the sun. The
information in the OP about tides and the effects of an eclipse are nonsense, talking about the moon shielding the sun's gravity and a bunch of
equally silly stuff. There is no such thing as the shielding of gravity.
While the sun does affect tides the moon, being much closer, affects the tides a great deal more. But the effects of the sun on the tides can be seen
every full and new moon. Because the tidal forces of the sun and moon are aligned at this time the slight effects produced by the sun are added to
those of the moon. But the eclipse adds nothing to the effect.
Here is the path of the eclipse over the Marshall Islands.
Here is the tide prediction for Jaluit Atoll.
Jaluit's time zone is UTC+12 so the local time of the eclipse will be at 3:48PM. At the time of the eclipse the tide level will be 3.4 feet. At high
tide, which occurs two hours later, the level will be 4 feet. A quick glance shows that there is nothing extreme about this level.
Now let's look at another new moon at Jaluit. In three months, the new moon occurs on October 18th. On that day the high tide will be 4.8 feet. Much
higher than the day of the eclipse. The eclipse has no effect.
Some may claim that the tide predictions are wrong. They are not. It is very important to mariners that they are correct. Their accuracy has been
validated over many many years, eclipses or no.
Be assured that solar eclipses have no effect on the tides.
[edit on 7/19/2009 by Phage]