A box for shipping and dispensing a welding wire wound into a generally cylindrical mass having a cylindrical core cavity concentric with a vertical axis. This chair comprises at least an underframe having an essentially longitudinal axis 14 and to which a backrest 16 may be fixed, and with respect to which a fixed horizontal axle 24 is determined. Across the array, search lines and bit lines of the CAM cells are interdigitated so that the search lines and bitlines alternate across the array. The child transport vehicle provides exercise for the adult rider and entertainmentstimulation for the child rider. Strakes provide leading and trailing rotor wipes to maximize pull of liquid flow from the pipe into the mixing area and back into the pipe and acute angled energy capture strakes for capturing the energy from liquid flow exerted against the back side of strake.