We encounter various forms of (science-related) pressure in our daily lives, but many of us probably fall short of an above-basic understanding of what it's all about. Both air and water fall under "fluids" in terms of classification, and relating to pressure, they are the two more common substances we come across. I will lightly cover two systems that many of you might find familiar.
Air Compressor
Air compressors are relatively common machines that have practically become a household item owing both to its increasingly affordable price as well as the various functions it's capable of performing from pumping bicycle tires to air-cleaning to the running of air tools. Loosely speaking, air compressors consist of a compressor unit which compresses the air and an air tank which stores the compressed air.