Compressed air isn’t really a practical ... with a lightweight regulator of his own 3D-printed design. His latest ball-valve air engine was then designed to run on this lower regulated pressure ...

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 ...

Scientists have developed a new way to power ferry boats using air instead of diesel. This cleaner method uses pneumatic ...