Running a twin pulse-jet engine next to a preschool will, it turns out, attract police attention. That’s roughly where this ...

In this video, we fabricate the intake for the world's first 100HP mini jet boat. We test the jet boat intake with an 18V power drill, which works successfully. So far, we have swapped a jet ski ...

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 ...

Yep, I did it again. I bought something weird and crazy from China. It’s a mini electric jet boat. “What’s a mini electric jet boat?” you might be asking. Think: comically small one-seater boat with ...

To the average person, all jet boats might look the same and perform identically, but those who make a habit out of getting on the water every chance they get know that couldn't be further from the ...

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 ...