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You've put your finger on the point of confusion. I remember when the
first tide thread surfaced, a year or so ago, I couldn't understand why
people were focusing on *water*. To me tide meant "land tide" and water
was an irrelevant complication, since I grew up in Iowa, attended a
university in Iowa, and hadn't seen an ocean when I first learned about
tides. Indeed, in our physics courses, the profs emphasized that when they
spoke of tides, they *weren't* talking about the rise and fall of water
along shorelines, or the sloshing of the oceans in their basins, matters
of some interest to surfers and seamen, but not to geophysicists.
-- Donald
.....................................................................
Dr. Donald E. Simanek