Wind power has always been a trade off between clean energy and the visual, acoustic, and ecological cost of giant spinning ...

A century after Nikola Tesla sketched a turbine with no blades, researchers are now using that same counterintuitive design ...

Bionic bladeless propellers, inspired by the effortless movement of jellyfish, are transforming aquatic propulsion. Traditional propellers are noisy, inefficient, and hazardous to marine life, but ...