Screenshot from social media post of Ukrainian volunteers assembling a small cruise missile with a pulsating Trembita engine. Its task is to destroy objects and exhaust the enemy’s anti-aircraft ...

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 ...

[Colin Furze] is at it again. This time he’s built a freaking jet-engine powered go kart. In case you’re not familiar with [Mr. Furze], he’s no stranger to building high-speed vehicles, like the ...