Make sure you get both lines of the URL. The little GIF at the top of the page is a famous engineering OOPS! It is the Tacoma Narrows Bridge, which failed shortly after opening in a constant gentle breeze - resonance in action. Yes, the paving was actually doing that!
http://www.asminternational.org/Content/NavigationMenu/Magazines/Advance dMat erialsandProcesses/MagazinePhotos/MagazinePhotos.htm
