A long winter has a way of making a lot of us northerners a little bit squirrly. In [Build N Pulsejets]’s case, squirly enough to mount a home-made propane-powered pulse-jet to a kids’ kick scooter ...

In this final part of the pulse jet series, an old woman's shopping bike is transformed into a bomb-inspired safety hazard.

The real engineering headache wasn't the fire, the failed augmentor experiments, or the welding done after drinking an entire box of wine. It was getting two pulse jets to run simultaneously without ...