Method, system and computer readable medium for use in a first wireless device for controlling a second wireless device. A series timing packets are exchanged between said master and slave nodes to measure the time offset of the time grid relative to clocks at the master and slave clocks. The memory device may include third dimension memory that is positioned on top of a logic layer that includes active circuitry in communication with the third dimension memory. Each cylinder has a chamber holding a piston movable in the chamber defining a pair of variable size chambers: a flood variable size chamber and an ebb variable size chamber. Each insulting layer extends partially above an associated trench and is characterized by the same height and width dimensions.