How did Eratosthenes calculate the circumference of the Earth 2200 years ago with an accuracy of 500km?

Eratosthenes was a Greek philosopher, astronomer, mathematician and poet born in 274 BC in Cyrene in present-day Libya and died in 194 BC in Alexandria, Egypt. He was a renowned scholar of his time…

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RESEARCH ON EMERGING DEVELOPMENTS IN DATA PRIVACY AND SECURITY IN THE TECHNOLOGICALLY ADVANCED CORPORATE SECTOR

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