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Visiting US Liberty Ships (1943)
During the Second World War, Tristan was commissioned by the Royal Navy as a top-secret naval station code-named Job 9 and later renamed HMS Atlantic Isle. Its role was to monitor U Boats (which were required to maintain radio contact) and shipping in the South Atlantic Ocean.Vagrant Species Part 3
Tristan da Cunha lies in the middle of the South Atlantic Ocean, east of the mid-Atlantic ridge, 2,800km from the continental shores South Africa, and 3,360km from South America. It is the most remote island in the world with a resident human population, with St. Helena, the nearest island some 2,400km away. Vagrant species might seem to be a curiosity, but all of the native animals on Tristan arose from individuals that wandered far from their usual haunts.The Legacy of Jacques Cousteau 1910 - 1997
Jacques Cousteau was a French naval officer, oceanographer, author and filmmaker.
In 1942-3, as a Naval Lieutenant, Cousteau and a French engineer Émile Gagnan invented the Aqua-Lung. Cousteau improved the Aqua-Lung design which led to the first open-circuit, self-contained underwater breathing apparatus (or SCUBA). This invention revolutionised underwater diving and was a major factor in the rapid development of recreational and professional scuba diving throughout the world. For Cousteau and Gagnan it allowed them to film and explore the underwater world more easily and to share their discoveries with the world.