Pedro Nunes, matematico e cosmografo portoghese del XVI secolo, e la sua Defesa do Tratado da rumaçao do globo para a arte de navegar / Stefania Elena Carnemolla.
Note:
A p. 287-317: Defensao do Tratado da rumçao do globo para a arte de navegar
Abstract:
The article contains an edition of an undated, and untitled Portuguese manuscript which is to be found in the National Library of Florence, and which once belonged to Cosimo III de' Medici, who had received it by the Portuguese engenheiro-mor and cosmographer Luís Serrâo Pimentel. Nowadays known as Defensâo do Tratado da Rumaçâo do Globo para a Arte de Navegar, it represents a work by the Portuguese mathematician and cosmographer Pedro Nunes on navigational problems such as the representation of the loxodrome on a globe, after he had proved that a ship following a fixed course did not describe a fixed line, but a curve which cut successive meridians at the same angle. Because of his theories, Nunes had exposed himself to criticism, whereas the Florentine manuscript represents a reaction to the attacks he had suffered because of his teaching how to trace the loxodromic curve on a globe
Nuncius A. 18, fasc. 1 (2003), p. 269-317