At 2:54 PM -0400 7/31/07, Jarod Wilson wrote: >On Tuesday 31 July 2007 01:14:40 pm Ben Scott wrote: >> On 7/31/07, Bill Sconce <[EMAIL PROTECTED]> wrote: >> > (Bridges give us some EXCELLENT examples of >> > what happens when an engineer goes a little bit amateur. You've probably >> > seen a video of the Tacoma Narrows bridge coming apart.) >> >> In fairness to the engineers behind the Tacoma Narrows bridge, I >> haven't seen anything which suggested they didn't know what they were >> doing. Everything I've seen stated that the resonance which built up >> due to wind was unprecedented in the Civil Engineering world. It had >> simply never been encountered or even considered before. According to >> Wikipedia, the designer of the TN bridge, Leon Moisseiff, was also a >> major contributor to the engineering of the Golden Gate Bridge. So >> "Galloping Gertie" is not so much about amateurism, but unforeseen >> consequences. Of course, most of us are familiar with *those*, >> too.... > >Ooh, ooh, everyone who's driven across the Tacoma Narrows bridge multiple >times raise your hand!
The twin for the Tacoma Narrows bridge is not that far down the road, in Deer Isle Maine. <http://en.wikipedia.org/wiki/Deer_Isle,_Maine> "...bridge does bounce up and won on windy days..." I'll say it does. Has an interesting sway to it as well. --Ray -- Raymond Cote Appropriate Solutions, Inc. PO Box 458 ~ Peterborough, NH 03458-0458 Phone: 603.924.6079 ~ Fax: 603.924.8668 rgacote(at)AppropriateSolutions.com www.AppropriateSolutions.com _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/