ジェームズ・クックが海軍に入ったのは何歳のころ？
After 18 months, not proving suitable for shop work, Cook travelled to the nearby port town of Whitby to be introduced to friends of Sanderson's, John and Henry Walker. The Walkers, who were Quakers, were prominent local ship-owners in the coal trade. Their house is now the Captain Cook Memorial Museum. Cook was taken on as a merchant navy apprentice in their small fleet of vessels, plying coal along the English coast. His first assignment was aboard the collier "Freelove", and he spent several years on this and various other coasters, sailing between the Tyne and London. As part of his apprenticeship, Cook applied himself to the study of algebra, geometry, trigonometry, navigation and astronomy—all skills he would need one day to command his own ship.
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