[Lindsay Wilson] has a lawnmower engine which a few years ago he converted with the addition of a sleeve valve to run on compressed air. It’s not a steam engine because creating a safe and legal ...

Such is the case with this 3D-printed compressed air engine, which just keeps getting better. The design has changed a lot since we first covered [Tom Stanton]’s attempts at reviving the ...

After looking into Einstein's forecast, China developed the first air-powered engine. This engine uses compressed air as its ...