In this video, we use a 60,000 psi waterjet cutter to slice a weed eater engine in half, revealing its inner workings. The cross-section highlights key components, including the piston, spark plug, ...

Among the hobbyists who spend their weekends racing radio-controlled model boats, the kind of boat Tony Castronovo builds in his Oakland Park shop used to be a joke. While top racers use nitro ...