If different parts of a spinning object
rotate at different rates, then the object probably has a fluid composition.
The Milky Way does not have a simple rotation curve (different kinds of objects
rotate at different rates).
Begelman says future models could be made more realistic if they allowed different parts of the cloud to
rotate at different rates.
Not exact matches
An increasing magnetic field would lower the resonant frequencies of the breathing and clockwise
rotating modes
at different rates, but increase the resonant frequency of the counterclockwise
rotating mode.
Allen, Mountaire Farms and Perdue — which has widely varying
rates at its Delmarva plants — credit lower
rates to treating minor problems quickly and
rotating workers among
different jobs to prevent muscle fatigue.
The first alternative is known to be an important factor, how much the second can contribute is questionable because the momentum of inertia of the core is perhaps not large enough relative to that of the mantle, and the mantle is probably too stiff to
rotate at a
rate different from that of the crust.
To complicate matters solid inner core
rotates at slightly
different rate to the surface crust, this movement can be tracked by the position of the South Atlantic geomagnetic anomaly which slowly drifts to the west.