GULF OF THE FARALLONES NATIONAL MARINE SANCTUARY — As the 45-foot-white catamaran “Kitty Kat” bobbed in the ocean near the Farallon Islands last month, Jackie Dragon dropped a hydrophone overboard to ...
The propellers of the world's ships and boats create a constant drone that disrupts ocean life. New propeller designs based on loops could one day quiet that drone and be more fuel efficient. Sharrow ...
DynaFlow's underwater jet cleaning diver tool is designed to reduce propeller fouling removal maintenance time and without being abrasive to the propeller blades. The company second generation ...
Oscar Propulsion Limited and the University of Strathclyde have come up with a way to reduce underwater radiated noise from ship propellers. According to Oscar Propulsion, its patented PressurePores ...
Conventional marine propellers remain the standard propulsion instrument for ocean vessels, small to large boats, and underwater vehicles. Conventional marine propellers remain the standard propulsion ...
NO KNOWN SEA-CREATURE uses propellers. Perhaps that is because they are too difficult to evolve from existing animal body plans. Or perhaps it is because they are not particularly good at doing what ...
An array of laser beams can protect a ship's propellers from damage caused by large pieces of ice. The optical load-deflection system (OLDS), designed by engineers at Canada's National Optics ...
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