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An astrolobe which is an instrument that measured the position of the stars , and the magnetic compass helped determine the ships approximate location.

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10y ago
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3y ago
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9y ago

The invention of the sextant allowed sailors to use celestial bodies to determine latitude. The sextant also helped to prove that the earth was round and not flat.

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13y ago

The compass.

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3y ago

Ifk

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Q: What scientific discoveries improved navigation and overseas exploration?
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