What are the next theories for debating this topic? Kepler's and Newton's laws, "Celestial mechanics", N Body problem, Chaos Theory, ...
Sorry, what are you debating here? I call this distraction!
The OP was a question regarding a experiment based on simple mechanics.
And the question or claim was not, if earth is rotating or not. Just a query, if anyone could give an explanation for these in-comprehensive conclusions from Mr. R..
And I too cannot follow Mr. R.'s conclusions. I doubt, that he even tried to perform this experiment with the ship by himself, in real world.