Engineering Genius - Nifty Pneumatics lyrics

Pneumatics are a branch of engineering that deal with the use of compressed gas (commonly air) to create motion. Pneumatics are a common substitute for hydraulics as they are cheap, generally easier to power (don't need to be connected to a driven axle), and require little maintenance. A standard pneumatic system will contain a compressor, a valve, and a pneumatic cylinder. While there are many advantages of using a pneumatic system to power a construction, a few disadvantages are that cylinders can leak (which depending on the type of gas used can be more or less dangerous), autovalves have to be created to enable reciprocating mechanisms, and movement is not as precise as hydraulics. FAQ ____________________________________ How do compressors work? How do pneumatic cylinders extend and retract using gas? What is a scotch yoke? What is PSI?