This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
The technical term is “heat engine”, or sometimes “Carnot engine”. (Though the latter is more if you’re talking about the underlying theory than an actual device.)
The technical term is “heat engine”, or sometimes “Carnot engine”. (Though the latter is more if you’re talking about the underlying theory than an actual device.)