You have reached the WEB site for Math 222 (Differential Equations)
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Tacoma Narrows Bridge - Resonance or Not? After taking this course, decide for yourself !

Animation: Galloping Gertie
Animation: Torsional Mode

PBS's NOVA webpage has a brief discussion and some movies of the actual bridge collapse. A very nice paper on the theories behind the collapse and recent questions concerning the role of resonance has been written by James Koughan of the Univ. of Texas at Austin; this paper was written for the Undergraduate Engineering Review in 1996.

Even the Eifell Tower in Paris satisfies a Differential Equation !

And a cautionary note regarding blind faith in numbers: Costly Mistakes


Site constructed and maintained by Peter G. Petropoulos.