Scientists from Cranfield University in the UK are developing a kind of underwater wing for ships that could help decarbonise a sector responsible for more emissions than air travel. Known as wave devouring propulsion technology, it is essentially a flapping foil system installed at the bottom of a ship’s hull that helps propel it along. Inspired by the tail fin of a whale, the system harnesses the kinetic energy of the waves to achieve propulsion without fuel. As the wing flows through the water, it automatically flaps up and down generating thrust — much like when a bird glides through…
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