Sound Imaging Used to Find Hidden Cracks in Infrastructure

March 18, 2015 01:17 PM
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Finding hidden cracks in large structures, such as bridges and airplanes, can be the difference between life and death, if the flaw leads to a catastrophic collapse. Scientists at Bristol University in Britain say they have discovered a new way of looking inside crucial metal parts to identify cracks before they fail, using sound imaging. VOA's George Putic reports.