An airfoil member is provided including a geometric morphing device. Resonator circuits in accordance with the invention may be used to build low-loss compact filters, oscillators, and other circuits, particularly microwave circuits. The running current is provided from a controller coupled with the hard disk drive. The data may be supplied to the relying entity by a second digital certificate, signed with a second signing entity’s electronic signature. The memory elements are supplied with data to be stored by the switching elements coupled to the leaves of the binary tree.