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The work was originally published in 1959 and was awarded the first prize for the promotion of literature for children and young people in 1960 and has been translated into several languages. As a follow-up, Rackwitz wrote "Sunken Worlds - Far S
The book provides a comprehensive overview of the potential of the sea as a source of various resources, emphasizing the importance of their sustainable exploitation for future generations.
The book describes man's discoveries of parts of planet Earth that were accidental or planned. The period from 50,000 years ago to today's efforts in space exploration is described.