Template:POTD/2008-07-20
A film of the 1940 collapse of Galloping Gertie, the first Tacoma Narrows Bridge in Tacoma, Washington, United States. The bridge opened on July 1, 1940 and from the start became notorious for its movement during windy days, earning the nickname "Galloping Gertie". The wind-induced collapse occurred on November 7, 1940, due partially to a physical phenomenon known as aeroelastic flutter.Film credit: Barney Elliott