The analysis of several reports of Ptolemy shows that already before Marinus of Tyre ancient geographers used a kind of projection, similar to the first Ptolemy’s projection. This could have been a kind of trapezoidal projection, which is…
What method did Ptolemy use for his map projection?The paper demonstrates that Ptolemy used a trapezoidal projection method, supported by the 115/52 ratio, allowing for consistent scale across latitudes, essential for his world map.How did Ptolemy's positioning of Thule differ from earlier assumptions?Ptolemy innovatively placed Thule at 63o latitude, diverging from the established 66o, likely influenced by Roman explorations, although concrete measurements for such positions were historically underdeveloped.What role did Marinus of Tyre play in Ptolemy's geographical claims?Marinus is credited with the assertion placing Thule at 63o latitude, which Ptolemy acknowledges as a significant shift in the geographical framework he adopted.
Strabo's rejection of Hipparchus' placement of India in favor Eratosthenes' reflects his misunderstanding of Hipparchus' cartographic methods, which preferred celestial observation over Eratosthenes' grid reckoning.
Viktor Viktorovich Shaytar (Russian: Ви́ктор Ви́кторович Шайта́р, IPA: [ˈvʲiktər ˈvʲiktərəvʲɪtɕ ʂəjˈtar]; born 13 February 1983) is a Russian racing driver.