YeSen's thoughts about the cause of tides. PPT6 The Influence of 90KM/H

1. The Influence of 90KM/H
PPT 6
From the Article “The Neglected Earth’s Movement --- Earth’s
“ZiZhuan”, Earth Rotating About the Earth–Moon Barycenter”
http://yeer.hubpages.com/hub/The-Neglected-Earths-Movement-
Earths-ZiZhuan-Earth-Rotating-About-the-EarthMoon-Barycenter
Written (Chinese) by Ye Sen
Translated (English) by Ye Er
1

2. And we’ve got this 90 KM/H - the
difference of the linear speeds. This speed
difference will be added to the Earth’s speed
when the Earth rotates on its own axis. (All
numbers here are from reference books, and are used as approximate numbers.)
From my earlier
PPTs (Please check
them first), we
roughly counted the
different linear
speeds on the surface
of the Earth.
2

3. So what does this 90KM/H bring to the
gigantic Earth?
Because this speed difference is generated in
12 hours. For a semi-diurnal tide, only 6 hours
to flood the tide. So let’s half it. Let’s half it
again (using the arithmetic average method) to
know the average increment of the speed (not
the average acceleration). And we have this
number - 22.5KM/H. This is already good
enough to cause the tides.
3

4. Let’s take the Pacific Ocean for example.
The mean depth of the Pacific Ocean is
4000 meters, and the mean depth of the
continental shelf is only about dozens of
meters, the difference is about hundreds of
times.
We know that the flow speed of the water is
inversely proportional to the sectional area.
Here the flow speed of the water is
inversely proportional to the depth of the
ocean.
4

5. From computation, we can get that the water
of the Pacific Ocean with a speed of
22.5KM/H will be accelerated to 2250
kilometers an hour when meeting the
continental shelf.
This is kind of scary, but we haven’t cut off
the resistance such as frictional forces and
others yet. If we cut off 90% for the
resistance and make a bold estimate, there
will still be a speed of 225 kilometers an hour.
5

6. 6
If 40 meters high water with a speed of 225
kilometers an hour, races to the coast in
continuous 6 hours, this should not be counted
as “tides”, this is a standard “Doomsday”.
In a real situation, the allowed value in the loss
of the energy should be greater than 90%! If
we assume 99% for the loss of the energy,
assume 450KM for the width of the
continental shelf, there would be 12 meters
high tidal bulge in the ocean water above the
continental shelf in 6 hours.