With an average of 21 Australians drowning each year in ocean rips and 90 percent of beach rescues related to rips, many swimmers lives would be saved if they received an alert in advance to avoid dangerous beaches. Inspired by her work as a life guard, Maddison King developed a warning system for rips, powered by the rips themselves. A turbine in her device uses the energy from the rip to power a warning signal to swimmers.
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Transcript available here: csiro.au/Education-media/Videos/Vimeo/BHP-Awards-2017/maddison-king/video-transcript