Korean scientists present a copper-free motor that uses carbon nanotube wires, promising lighter and greener energy.

There's no replacement for displacement. An adage that's been around as long as the combustion engine, really. But these age-old sayings don't really apply anymore when it comes to electric motors.

E-bikes combine a bicycle with a big lithium battery, a speed controller, and a motor. What you get from that combination is simple, efficient transportation. [Tom Stanton] wanted to build an e-bike ...

Aerospace engineers designed a 1-megawatt electrical motor that is a stepping stone toward electrifying the largest aircraft. Aviation's huge carbon footprint could shrink significantly with ...