![vlcsnap-2011-06-17-18h25m37s152-[640x480]](http://www.teda.id.au/wp-content/uploads/vlcsnap-2011-06-17-18h25m37s152-640x480-535x200.jpg "vlcsnap-2011-06-17-18h25m37s152-[640x480]")
![vlcsnap-2011-02-18-14h15m20s245 [640x480]](http://www.teda.id.au/wp-content/uploads/vlcsnap-2011-02-18-14h15m20s245-640x480-535x200.png "vlcsnap-2011-02-18-14h15m20s245 [640x480]")
![vlcsnap-2011-03-15-07h02m54s244 [640x480]](http://www.teda.id.au/wp-content/uploads/vlcsnap-2011-03-15-07h02m54s244-640x480-535x200.png "vlcsnap-2011-03-15-07h02m54s244 [640x480]")
Tacoma Narrows Bridge Collapse
This movie is compulsory viewing for all engineering students and will shown in nearly ever first year structures class. It demonstrates that structures have natural frequencies and how under exactly the right wind speeds structures can enter a natural harmonic.
![Narrow Bridge [640x480]](http://www.teda.id.au/wp-content/uploads/Narrow-Bridge-640x480-240x90.jpg "Narrow Bridge [640x480]")
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