Everyone’s owned a pinwheel at one time or another. I remember riding in the back of my parents’ car, sticking my pinwheel out the window as we traveled down the street. The speed at which the ...

The term “hydroelectric power” often brings to mind immense operations driven by purpose-built infrastructure such as dam systems and large turbines with traditionally metallic, propeller-based ...

Helicopters like this AH-46 Apache might have better speed, range, and payload capability using blades with embedded carbon nanotubes. Engineers at the Army Research Laboratory are exploring the use ...