Uploaded by
usnistgov
on Dec 29, 2011
The National Institute of Standards and
Technology (NIST) and the Federal Highway Administration (FHWA) are
using random patterns of speckles painted on metal connectors for
bridges to better understand how stress and strain could lead to their
failure, and possibly, a tragic collapse such as the one in Minneapolis,
Minn., in August 2007. More info. at http://www.nist.gov/public_affairs/...
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