Yes, semi-diurnal tides can be reduced to diurnal tides. For example in the South China Sea (see picture attach).
This is a very complex phenomenon, in which many factors like coastal configuration and ocean depth play a role. But what is the basic principle? Is it that the tidal bulge moves...
That's an interesting point!
I understand (more or less) your explanation about the internal force. I can accept that such a force exists and that it has an effect. But in which direction?
So this internal force is the driving force for the tides... Why is direct gravity from the moon not...
Thanks people!
This information was really useful to me!
BUT: WHY is it the DIFFERENCE between forces on the far and the near sides of the Earth that determines the tides??
Would there not be tides when these forces were (theoretically) equal?
I thought the tides are determined by the...