French Scientists Are Working On An Acoustic Earthquake Shield

French Scientists Are Working On An Acoustic Earthquake Shield | Earthquake-450x300 | Science & Technology

A group of French scientists has developed a method of shielding cities from the force of an earthquake, and after devastating earthquakes in Chile, the idea is drawing some much-deserved attention. It works on the principle of refraction, planting an array of boreholes to redirect the reverberations around the city and into areas where they will do less damage. If the system works, it could be a new way to shield populated areas from the devastating effects of an earthquake.

French Scientists Are Working On An Acoustic Earthquake Shield | experiment-460x287 | Science & Technology

In the experiment, the researchers dug a grid of cylindrical holes five meters deep in the soil, then used seismographic sensors to monitor how force propagated through the array. As expected, sound resonated through the array according to the properties of acoustics, refracting around the boreholes in curved patterns. The hope is that, given the right array and frequency, civil engineers can use this technique to refract earthquakes around cities entirely, creating a kind of central quiet zone. But as Scientific American notes, all that force has to go somewhere: “The trick will be to find a way to absorb the massive energy of a major earthquake — or find a better place to send it.”

Source: theverge.com

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