Sound Imaging Used to Find Hidden Cracks in Infrastructure

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.

© La Voix de l'Amérique - mercredi 18 mars 2015