An apparatus to transfer heat from a heat source to a heat absorber, the apparatus consisting of an active thermal spreader plate with internal flow channels, a recirculating heat transfer fluid, and a means to impel the heat transfer fluid using an external moving magnetic field. In the most preferred embodiment a centripetal pump impeller is trapped inside the active thermal spreader plate, and the impeller is motivated to rotate due to eddy currents generated by the external moving magnetic fields.