Sounds of the Silent Deep

Explains the importance of sound for man in everyday life, and deals with factors that lead to the erroneous conclusion that man cannot hear beneath the sea.

Shots of cliff, small fish, jelly fish, American city, Chinese town, people dancing, European Aquarium guide,devise to hear sounds beneath the sea, sonar invented in 1941(sound pulse), an unidentifyed sound found in 1942, which turned out to be sounds made by schools of fish known as croakers, group from Los Angele trying to film the world’s first motion picture under the sea, a man diving in the sea, dolphins, sharks, a turtle, University of Rhode Isaland (Marragansett Marine Laboratory), catalogue of various animals, dolphine acrobatic shows in an aquarium called Marineland of the Pacific, animated explanation of how dolphins find food, experiment on the dolphins’ ability of hearing, voices of dolphins and whales, arctic oceans, north pole, walruses, seals, posters og cars, traffics in the city,