Navigation in the 1400s and 1500s was particularly problematic because

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The main problem with navigation during the 1400s and 1500s was the lack of a reliable clock to measure longitude. This made it difficult for sailors to accurately determine their position at sea and navigate to their desired destination. Latitude calculations based on celestial observations were still possible, but they were not precise enough for effective navigation. Belief in the tropical zones and Chinese exploration were not significant factors affecting navigation during this time period.

Navigation in the 1400s and 1500s Was Particularly Problematic Because