Along with engineer Émile Gagnan, Cousteau perfected the aqualung, which for the first time allowed divers to stay underwater for hours. With his French accent, and from his boat the Calypso, he hosted the popular TV series "The Undersea World of Jacques Cousteau," which was renowned not only for its amazing deep-sea creatures, but also for the awe-inspiring underwater filmmaking. It also showed us the dire implications of pollution in our seas.
"From birth, man carries the weight of gravity on his shoulders. He is bolted to earth. But man has only to sink beneath the surface and he is free."