As co-chief executive of the start-up Prometheus, the Amazon founder is using A.I. to improve how devices ranging from ...

According to a report by The Wall Street Journal, Prometheus is now valued at $41 billion, with Bezos, JPMorgan Chase, ...

Rim-driven thrusters turn the normal propeller-motor arrangement inside out; rather than mounting the motor at the center of the propeller, they use a large hollow motor, with the blades attached to ...

Bob Maddox’s stage name, Crazy Rocketman, is a misnomer. Maddox doesn’t build rockets. He builds pulse-jet engines. There’s a difference. As for the crazy part—that may be true. Maddox is the world’s ...

A George Stone Technical College’s Aviation Maintenance Technology Program graduate and his employer have created a hands-on apparatus to help future students. Sean Rader, director of maintenance at ...