Nunes, Pedro
摘要
Pedro Nunes is chiefly known for his theoretical work on celestial navigation and his translations into Portuguese of works by John of Holywood (Sacrobosco) and Ptolemy. He was the first to develop the theory of loxodromics, or the true nature of a ship’s track when sailing in a constant direction, and presented a method for measuring angles with improved accuracy that foreshadowed the modern vernier scale.