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From
gemini
"Researchers from the Norwegian University of Science and Technology (NTNU) are testing a model “whale tail” that can be attached to ships. NTNU is conducting these tests in the Marintek Towing Tank in cooperation with Rolls-Royce and the British companies Seaspeed and MOST. [...] The main goal of the whale tail is to help reduce fuel use by using wave energy to help the ship move forward."
