Johns Hopkins University engineers are using a new indoor tank filled with nearly 43,000 gallons of water to test navigation and control equipment that allows them to direct a small underwater robot. The robot, called the JHU Remotely Operated Vehicle, is connected by long tether lines to computers outside the tank. The technology developed and refined in this lab, supervised by Louis Whitcomb, is being used in full-size robotic submersibles that are exploring some of the deepest and most hostile parts of the ocean. For more information about this program, please see the JHU News & Information web site or contact Glenn Small by phone at 443-287-9905 or by email. From the Series:Underwater Robot