The law would need to be written as follows in the context of the topic we are discussing in relation to this Frame of Reference: The only thing that "rotates" is the water, which has a fixed angular velocity and a level surface. With each departure from this particular condition of motion, the deviation from a plane grows. A paraboloid is also produced when we are at rest. Once more, it makes no difference how the pail rotates. Many physical laws would need to include an additional factor, the angular velocity "" of the Pail relative to a "more suitable" Frame of reference, let's say Earth, if our description of nature were based on the Frame of reference associated with the Pail.