2.1.2 - Two contributions.

Here I want to highlight two contributions on the topic of tides.

The tides seen from space.

The way of describing the tidal phenomenon, on the previous page, is in contrast, in many points, with what a NASA film reveals to us.

Fig. nr. 2.

video by NASA /PO.DAAC.

This film has exposed more than one point in the common way of explaining the tides, and has prompted the present analysis.

Indeed, the tides behave in a manner that could not be more different than that given in figure #1, that of the classical description.
Today, thanks to satellites, we know that, instead of two tidal waves, which revolve around the Earth, with a bi-diurnal frequency, there are several tidal basins, in each of which a tidal wave moves, mostly more frequently twice a day. Only a few tidal basins have a diurnal frequency tidal wave.

The tidal waves do not coincide with the passage of the Moon over the meridian, except in a limited sector of each basin, as can be seen in the film.

Furthermore, they do not proceed from one meridian to the next, in a westerly direction, but each revolves around the center of its basin. Clockwise, in the southern hemisphere; counterclockwise in the northern hemisphere.

The sailors.

The sailors, practical people, who have always had the need to establish the times of easy access to a specific port.

Once the current theory of the tides has emerged, the sailors limited themselves to take note, almost in silence, of the differences between practice and theory, as far as the times of high tides, and the times of the passage of the Moon on the meridian.

Without much fuss, they established the “lunitidal intervals”, so implicitly denyng the theory of the sublunar points, and the whole theoretical framework as well.

Continued.