Rock arches are singing, and scientists are listening

A team of researchers from the University of Utah is perfectly situated to study rock arches. Arches National Park in Utah has thousands of them, including one of the longest in the world, spanning 290 feet -- Landscape Arch. With support from the National Science Foundation, geologist Jeff Moore and his team are pioneering a new method of structural health monitoring to keep tabs on the structural integrity of these spectacular geological landmarks. The researchers have discovered that each arch has its own "voice," because it naturally vibrates, like a guitar string, with its own distinct resonant frequency. Natural rock arches and bridges may appear to be stationary, but they are in constant motion and impacted by seismic sources hundreds of miles away or even helicopters flying close by. The team's research has important implications for the conservation and management of these dynamic natural structures, which are so symbolic of the U.S. Western landscape.

Provided by National Science Foundation

Runtime: 3:17

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