It is a supplement to the book entitled „Unknown Earth – unknown hypotheses” (https://amzn.to/4dPba3s).

If the horizontal component of the Moon’s gravitational force were the cause of tides, then water would be pulled toward the western coast at moonrise and pushed away from it at moonset. In that case, there would be only one high tide per day, whereas in reality, there are two high tides each day.