To Engineer Is Human

Engineering is a human endeavor and thus it is subject to error.

Engineering is a human endeavor and thus it is subject to error. Human fallibility. Engineering, unlike the precise world of mathematics, is a human endeavor, making it inherently susceptible to errors. These errors can range from minor annoyances to catastrophic disasters, highlighting the critical need for vigilance and continuous learning in the field. The Code of Hammurabi, with its severe penalties for faulty construction, underscores the long-standing recognition of this human element in engineering. Examples of errors. History is replete with examples of engineering failures, such as the Kansas City Hyatt Regency skywalk collapse, the Tacoma Narrows Bridge collapse, and the Three Mile Island accident. These incidents serve as stark reminders of the potential consequences of human error in design, construction, and operation. The Hyatt Regency walkways, for example, collapsed due to a design change that doubled the load on a critical connection, a mistake that went unnoticed until the tragic event. Progress through learning. Despite the potential for error, engineering has advanced significantly over time. The rarity of structural failures in technologically advanced countries attests to the effectiveness of modern engineering practices. However, the pursuit of absolute safety can conflict with economic and practical considerations, necessitating a balance between risk and progress.

Success may be grand, but disappointment can often teach us more. Embracing failure. The history of engineering is as much a story of failures as it is of triumphs. Failures, while disappointing, provide invaluable lessons that drive innovation and improve future designs. The Code of Hammurabi, while encouraging sound construction, could not have encouraged the evolution of the house, not to mention the skyscraper and the bridge, for what builder would have found incentive in the code to build what he believed to be a better but untried house? Learning from nursery rhymes. Even in childhood, we are introduced to the concept of structural failure through nursery rhymes and fairy tales. "London Bridge is falling down" and "Humpty Dumpty had a great fall" acknowledge the limitations of human constructions and the inevitability of failure. These stories prepare us for a world where things break, and teach us to rebuild and learn from those experiences. The three little pigs. The story of the Three Little Pigs illustrates how underestimating the strength needed in a structure can lead to disaster. Each pig makes a different estimate of how strong their houses must be, and each reaches a different conclusion about how much strength he can sacrifice to availability of materials and time of construction. It is only the test of the wolf’s full fury that ultimately proves the third pig correct.