A temperature sensor is provided. The method includes obtaining a sample of a readback signal from a sequence of data stored on the storage medium using the head. The catalytic material may include copper and zinc oxide. A high band-width, adaptable communication system is used to communicate between the controllable valve and the surface. More particularly, at least one embodiment of the invention pertains to a technique to place at least one processing core in a power state without coordinating with the power state of one or more other processing cores. The carriage can be raised from a low position on the base platform to an elevated position by operating a hand cranked winch with a crank handle rotatable about an axle located proximate to a hand grip on the chassis rails and parallel to the axis of the wheels.