Técnicas astronómicas de orientación e instrumentos náuticos en la navegación medieval

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                            [a] => Navigation is a science that has slowly and gradually established itself as such. In the Middle  Ages, navigation already possesed the characteristics of a science. These technological advances  led many scholars of the period to produce works of great importance entirely devoted to  nautical science. The main objective of the development of navigation techniques based on  mathematic, philosophy and logic and of the changes in both local nautical instruments and  those imported from the Orient was to achieve greater precision in astronomical techniques  when used in the high seas.
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