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Events on Thursday 7 November 1940 1
1940Collapse of the Tacoma Narrows Bridge"Galloping Gertie" tears itself apart in the windOn 7 November the new Tacoma Narrows suspension bridge in Washington State collapsed after wind set off violent twisting oscillations. The collapse was filmed, and the only death was a dog left in a car. The failure changed how engineers design suspension bridges for aerodynamic stability.