Читать книгу The Sea: Its Stirring Story of Adventure, Peril, & Heroism (Vol. 1-4). The History of Sea Voyages, Discovery, Piracy and Maritime Warfare онлайн

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Not so very long ago, our knowledge of anything beneath the ocean’s surface was extremely indefinite; for even of the coasts and shallows we knew little, marine zoology and botany being the last, and not the earliest, branches of natural history investigated by men of science. It was asserted that the specific gravity of water at great depths would cause the heaviest weights to remain suspended in mid-sea, and that animal existence was impossible at the bottom. When, some sixteen years ago, a few star-fish were brought up by a line from a depth of 1,200 fathoms, it was seriously considered that they had attached themselves at some midway point, and not at the bottom. In 1868–9-70, the Royal Society borrowed from the Admiralty two of Her Majesty’s vessels, the Lightning and Porcupine; and in one of the latter’s trips, considerably to the south and west of Ireland, she sounded to a depth of 2,400 fathoms,28 and was very successful in many dredging operations. As a result, it was then suggested that a vessel should be specially fitted out for a more important ocean voyage round the world, to occupy three or more years, and the cruise of the Challenger was then determined upon.