In the awful event that you are trapped inside a collapsed building, the options you have for letting rescuers know that you’re still alive are limited. Hopefully rescue dogs will pick up your scent, or a keen-eared rescuer will hear your shouts through the rubble. But now it could be your very heartbeat that saves your life. Nasa’s Jet Propulsion Laboratory and the US Department of Homeland...
Heartbeat detector developed by Nasa finds people trapped under rubble
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