In the endless pursuit of faster, more efficient travel, engineers have been cooking up all kinds of new forms of propulsion. One of the most interesting to emerge in the last decade is the electric ...

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 ...

The refinement of the fighter jet seems to have happened at a blistering pace. The world's first operative fighter jet was Germany's Messerschmitt Me 262, which took to the skies during the latter ...