Cycloidal propulsion systems represent an innovative class of marine and aerospace thrusters that employ a series of continuously rotating blades to generate thrust in multiple directions. This design ...

Video: A bizarre aircraft design dating from the late 19th century could provide the perfect lift for small, agile flying robots (Video courtesy of Hu Yu/Singapore National University) A small robotic ...

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The ocean is a potentially vast source of electric power, yet as engineers test new technologies for capturing it, the devices are plagued by battering storms, limited efficiency and the need to be ...

On May 8, 2010, the 310-foot-long passenger ferry Andrew J. Barberi lost propulsion control of one its two cycloidal propellers as the vessel approached St. George terminal, Staten Island, New York.