A solenoid engine is a curiosity of the electrical world. By all measures, using electricity to rotate something can be done almost any other way with greater efficiency and less hassle.

Solenoid engines are an exciting and fun project to build. In this video, we will create a powerful solenoid engine using LEGO. The basic concept involves an electromagnet that pulls a piston into the ...

These engines mimic the function of an internal combustion engine, with each solenoid acting as a piston. The only problem with [Emiel]’s concept engines, though, was that he never actually put ...