Very cool >2 minute BBC video on drones in Australia that spot sharks for swimmers and snorkelers and deploy inflatables to help stranded swimmers. It was awesome.
http://www.bbc.com/news/av/technolo...lp-keep-swimmers-safe?ocid=socialflow_twitter
http://www.bbc.com/news/av/technolo...lp-keep-swimmers-safe?ocid=socialflow_twitter