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Understanding the World's Greatest Structures: Science and Innovation from Antiquity to ModernityExploring how two types of external forces act on structures such as the Chouteau Bridge in Kansas City; learning how the forces are related to equilibrium, the most important concept in the field of engineering mechanics.

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Now PlayingUnderstanding the World's Greatest Structures: Science and Innovation from Antiquity to ModernityExploring how two types of external forces act on structures such as the Chouteau Bridge in Kansas City; learning how the forces are related to equilibrium, the most important concept in the field of engineering mechanics.0Understanding the World's Greatest Structures: Science and Innovation from Antiquity to ModernityUsing the Simple Tension Test as a gateway to understanding the concepts of internal force, stress and strength; seeing the concepts at work in structures such as San Francisco's Golden Gate Bridge and Athens's Olympic Velodrome.