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The Bare Bone Facts
Published 2 years ago
Description
When an engineer builds a building, a bridge, or some other structure, he must build it so that it can withstand both stretching and compressing forces. In designing the structure to withstand both kinds of these forces, he must anticipate how much of each force the structure might face in its lifetime.
Photo: Study of Skeletons, c. 1510, by Leonardo da Vinci.
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