Geophysics

An anti-earthquake cloak for buildings?

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Science  06 Jun 2014:
Vol. 344, Issue 6188, pp. 1129
DOI: 10.1126/science.344.6188.1129-g

Scientists studying how to shield vulnerable buildings from destructive seismic waves are getting ideas from optics. Drawing on techniques for controlling the flow of light and electromagnetic radiation, Finnochio et al. show how to arrange resonators into mechanical metamaterials that could deflect seismic waves. In a large-scale field experiment, Brule et al. used a similar approach and placed engineered resonators in the ground. Their arrangement worked: When they generated seismic activity nearby, the resonators modified the energy's distribution, making it less destructive.

Appl. Phys. Lett. 104, 191903 (2014). Phys. Rev. Lett. 112, 174302 (2014).

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