The skateboard wheel and axle assembly includes an axle rigidly mounted in a hangar, with opposite ends of the axle extending from the hangar. Also provided is a dielectric thin film having evenly distributed nano-pores with a diameter of less than 50 \u212b, which is required for semiconductor devices. Also each multicast connection is set up by use of at most two outgoing links from the input stage switch. A conduit shell fits over the intermediate shell and creates an intake conduit extending down the side of the liquid cylinder to an intake opening lower down the pump body. A second insulation interlayer structure is on the second surface in a second region of the substrate.