Nautical application of virtual reality used for undersea viewing. NOAA personnel demonstrating a concept developed by Washington University's Human Interface Technology Laboratory; to be able to see underwater objects, fish or terrain by combining sonar with a computer graphics system that would be viewed by the operator wearing laser micro- scanner glasses. Here, a NOAA operator looks out over the stern of a small boat whilst wearing the pink, plastic-rimmed laser glasses & data glove that connect him to the virtual undersea world created by the computer. (1990)