I read a power post that went by the name centrifugal force manipulation, which is an outward force apparent in a rotating reference frame; it does not exist when measurements are made in an inertial frame of reference. All measurements of position and velocity must be made relative to some frame of reference. Therefore i decided a power that would work as a science explained and measurable ability with an easily decernible limit for the users of this power. That power is centripetal force manipulation; this allows the spin of an object based on a reference point, which sounds like centrifugal force manipulation but the user must add the outward force to change the inertial reference point himself. I believe this is the actual power that is shown with Thors use of Mjolnir to lift off the ground at high speeds.