Solar-powered device lets first responders communicate without signal

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In the wake of natural disasters, communication between first response units can mean the difference between life and death. But as we saw during the Nepal earthquake, these situations are prone to power and internet losses, leaving victims dangerously isolated from potential rescuers. We have already seen the MobileMill — a portable trailer which combines solar and wind power to provide energy for first response units in emergencies. Now Reachi, a solar-powered device using a mesh network, can send signals from person to person even when phone lines and power go down. Reachi was created by a team of Danish designers led…

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