2018-04-28, 22:30
Shark-spotting drones help keep swimmers safe
The drones sound an on-board siren to warn swimmers when spotting a nearby shark.
http://www.bbc.co.uk/news/technology-43814331
The drones sound an on-board siren to warn swimmers when spotting a nearby shark.
http://www.bbc.co.uk/news/technology-43814331