Rocking earthquake response for bridges

	Duration: 00:29 minutes Upload Time: 07-05-10 08:39:11 User: newscientistvideo :::: Favorites :::: Top Videos of Day
Description: Bridge supports not fixed firmly to the ground should fare better in earthquakes. Full story - http://www.newscientisttech.com/article/dn11828 Video credit: Buffalo University/Michel Bruneau This clip shows the base of a tower on an earthquake table - its rocking is controlled by dampers on each leg that prevent it from falling over