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djgulbransen
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re: Engineering disasters
djgulbransen   7/12/2012 7:26:43 PM
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The Tacoma narrows bridge in Washington state collapsed when winds coming up the canyon excited a resonant frequency in the bridge leading to positive feedback and ever increasing oscillation amplitude.

Brakeshoe
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re: Engineering disasters
Brakeshoe   7/12/2012 7:21:32 PM
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The Kansas City Hyatt Regency skywalk collapse on July 17, 198i during the Friday Tea Dance in the lobby killed 114 people due to a structural engineering error during construction, resulting in an infinite shear force applied to the concrete on the 4th floor walkway. http://TinyURL.com/KCHyatt

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