Never underestimate the power of a well-stocked junk bin. Along with a TIG welder and mechanical ingenuity bordering on genius-level, all of which come to bear on this fridge compressor to four-stroke ...

Got an old air conditioning compressor lying around? And some engineering skills? Why not turn that thing into a real, working internal combustion engine? That's what one YouTuber did, and the result ...

Turbojet engines are an incredible piece of 20th century engineering that except for some edge cases, have mostly been replaced by Turbofans. Still, even the most basic early designs were ...