How did sailors prove that the Earth is round in shape?
Answers
Answer:
The sailors sailed in one direction in the ocean ( Pacific) and then came back to the starting point. after a revolution.
Answer: The first direct demonstration of Earth's sphericity came in the form of the first circumnavigation in history, an expedition captained by Portuguese explorer Ferdinand Magellan
The expedition was financed by the Spanish Crown. On August 10, 1519, the five ships under Magellan's command departed from Seville. They crossed theAtlantic Ocean, passed through what is now called the Strat of Magellan, crossed the Pacific, and arrived in Cebu, where Magellan was killed by Philippine natives in a battle. His second in command, the Spaniard Juan ,Sebastián Elcano, continued the expedition and, onSeptember 6, 1522, arrived at Seville, completing the circumnavigation. Charles I ofSpain, in recognition of his feat, gave Elcano acoat of farms withthe motto Primus circumdedisti me (in Latin, "You went around me first").A circumnavigation alone does not prove that the earth is spherical. It could be cylindric or irregularly globular or one of many other shapes. Still, combined with trigonometric evidence of the form used by Eratosthenes 1,700 years prior, the Magellan expedition removed any reasonable doubt in educated circles in Europe.
Explanation: