Sonar Buoys

Finding the missing "Titan" submersible has been compared to searching for a needle in a haystack, which is actually the Atlantic Ocean. Meanwhile, rescue efforts are now focused on an area where underwater noises were detected by a Canadian military surveillance aircraft. Mike Lapalme’s animation explains how sonar buoys, a technology first used during the Second World War, could play a critical role in finding the vessel. Full story at Globalnews.ca.