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Elegant shape of Eiffel Tower solved mathematically

An American engineer has produced a mathematical model explaining the elegant shape of the Eiffel Tower that was derived from French engineer Gustave Eiffel's writings regarding his own fears about the effects of wind on such a structure. University of Colorado at Boulder Associate Professor Patrick Weidman said Eiffel, one of the premier structural engineers in history, was determined to build the world's first tower reaching 300 meters, the nearest metric equivalent to 1,000 feet, into the sky. The tower was designed to be the centerpiece of the World's Exposition in Paris, marking the centennial of the French Revolution.