An amphibious vehicle achieves a stable ride, maneuverability, and high speed. A second sub-plate has a flow channel which is open to the cathode side of the adjacent MEA. Such forced content requests, even if directed to a different domain from that of a site being visited, preferably are not treated as the end of the site visit or the start of a new site visit. The camera microcontroller captures and stores objects in view, and tracks such objects as the camera zooms, pans and tilts in spherical coordinates. Thus, data can be held in the latch circuit even when power is not supplied.