![]() ![]() At its healthiest, the human lung is only capable of producing a fraction of the air pressure needed for cooling metal. In light of the demands brought on by metal production, the limitations of the human lung became readily apparent. Among metalsmiths, it became apparent that hotter forms of air were needed to turn liquidized minerals like copper and gold into hard metals. Sometime around 3000 B.C., developments were made in the branch of science known as metallurgy, which concerns the study of metal production. With its ability to exhale oxygen, the lung made it easier to build fires for cooking and keeping warm. The history of air compressor use can be traced back thousands of years to when early civilizations discovered the power of the human lung. The production for all of these things has largely been driven by compressed air, which has made it possible for workers at factories to assemble heavy, intricate items at speeds that would have been impossible a century before. During the first half of that century alone, people witnessed the introduction of automobiles, aircraft and countless products sold in stores that hail from factory assembly lines. period in human history has seen as much technological development as the 20th century. "What Are the Differences Between Pump Types?".
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