Wave devouring propulsion: A green technology for maritime sustainability

https://techxplore.com/news/2023-11-devouring-propulsion-green-technology-maritime.html

"wave energy for propulsion and designed an inventive method of achieving greater thrust from the power of the waves by harnessing a vessel's submerged flapping foils in an innovative way... structure and movement of whale's tail fin uses wave energy for propulsion... reduce fuel costs, enhances marine craft propulsion... small, unmanned vessels and can be seamlessly integrated into hybrid propulsion systems, including those powered by electricity, hydrogen, or fossil fuels"