Mapping the seas

The video discusses the Concordia shipwreck, highlighting the dangers of the sea and the importance of mapping the seabed. It explains early depth measurement techniques like depth sounding and compares them to the more accurate navigation methods used by dolphins. The video introduces sonar technology, which uses sound waves to map the ocean floor, helping ships avoid hazards and reducing the risk of shipwrecks.

What tragic event is mentioned in the text, and what were its consequences?

How did early explorers measure the depth of the water?

What technique do dolphins use to navigate underwater?

Explain how sonar technology works in measuring water depth.

What benefits does sonar technology provide for mapping the ocean floor?