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What invention made it possible to calculate latitude? Why couldn’t Columbus calculate longitude?

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Answer:

The astrolabe was an Arab invention that helped sailors find latitude. Calculating longitude required accurate clocks, which were not available when Columbus was exploring.

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just took the test :):

User Alexander Sorokin
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Answer:

Explanation: The astrolabe was an Arab invention that helped sailors find latitude. Calculating longitude required accurate clocks, which were not available when Columbus was exploring.

User Interimpulso
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