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Seismic Siren Shakes Up Distracted Drivers

If spotting a cop in your rearview mirror tends to make you tremble now, just wait. Fed up with earbud-wearing, cell phone-yakking motorists who don’t heed sirens, police across the country are turning to a new attention-getting tool–low-frequency sound waves so strong they can actually be felt up to 200 feet away. "It feels like a tremor inside the vehicle," says Tom Morgan, police market vice president for Federal Signal, which makes the seismic sirens.

By Vince Beiser

Full Story: http://www.wired.com/gadgets/miscellaneous/magazine/16-12/st_subsiren

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