what technologies enabled europeans to travel out into the open oceans to search for and secure new trade routes to china and india? where did the europeans acquire these technologies?



Answer :

Astrolabe. The astrolabe was a vital navigational tool used by many European explorers, including Columbus and Magellan. It was invented in the Roman Empire but remained popular until the eighteenth century because it allowed sailors to do a variety of things.

Sailors began to use tools such as the magnetic compass and the astrolabe, which allowed navigators to learn the location of their ship by charting the position of the stars. Better instruments enabled sailors to navigate the open seas without the use of landmarks.

The astrolabe, magnetic compass, caravel, sextant, and Mercator's projection were the five major advances of the Age of Exploration.

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