If you're a swimmer splashing around for help in the ocean near Malibu this summer, don't be afraid if you spot a red object speeding toward you. It's not a sunburned shark with a first-aid symbol tattooed on its back, but a robot lifeguard coming to rescue you.
Emily (Emergency Integrated Lifesaving Lanyard) is a remote-controlled motorized contraption containing a sonar device that can scan for underwater movements associated with distressed swimmers. Lifeguards toss it into the surf from a beach, aircraft, or ship, and it zooms toward its target at speeds up to 28 mph. Once … Read more