robobaywatchYou’re lifeguarding at the beach. Two swimmers spaced widely apart are screaming for your help. You can only save one at a time. So you call EMILY.

EMILY (EMergency Integrated Lifesaving lanYard) is  a robot-raft which can travel 28 miles per hour. It uses sonar to look for underwater movements associated with swimmers in distress. The victim grabs on and EMILY brings him to shore. Speakers and a camera can be used by the lifeguard on shore to calm the swimmer. EMILY can go for 80 miles on a single battery charge.

EMILY costs $3,500 from a company called Hydronalix. More info from Popular Science.

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