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Imagine you were drifting in space in a ship with no windows. If you were spinning, then you would be aware of a centrifugal force and a coriolis force, if you tried to move. You wouldn't need to refer to any other objects around you to know whether you had angular momentum. You would also know its axes
I don't agree.
QuoteI don't agree. Well how does the wind know which way to blow? It can't look at the stars to tell the Earth is spinning and it definitely gets a hint of Coriolis force.So it happens locally and can be measured- all I'm saying is that, as you include more and more of the Universe in your 'ship', these (effective) forces will get smaller and smaller (integrate to zero).This was my first reaction but I am not sure what you are 'not agreeing' with. You can't mean that the Coriolis force doesn't occur for a spinning object so, what are you actually not agreeing with?