Clever Buoys: Shark-detecting tech to patrol Aussie beaches

In an attempt to throw everything but the kitchen sink at Sydney's sharks in time for summer, one state government in Australia has gone high-tech. New South Wales' A$16 million shark strategy to protect swimmers and surfers, announced in Oct. 2015, includes 4G listening stations, a shark-tracking mobile app and Clever Buoys.  Using sonar to detect the impressive creatures, the Clever Buoy devices' software can assess whether an object's size and swimming pattern indicates a shark's presence an...