Pneumatic sets have been part of the LEGO Technic theme for a long time; the first sets were introduced in 1984 only two years after the Technic name was introduced. There haven't been many pneumatic sets though—if you don't count re-releases, accessory packs and LEGO Education, only 28 sets have been released in 39 years, with a 29th (42157 John Deere 948L II Skidder) just announced for later this year. Despite this rarity, pneumatic sets remain popular. So let's have a closer look at LEGO pneumatics. Along the way, we'll look at the history of the system, the components, the science, LEGO sets and MOCs. So let's get going, we have a lot to get through. It’s All Greek To Me The word 'pneumatic' comes from the Latin word 'pneumaticus' which in turn comes from the Greek word 'pneumatikós' meaning air, breath or spirit. The dictionary calls it “containing or operated...

