Gods In The Sky: Part 2

Professor Allan Chapman explores the world of the ancient Greeks, as the first great seafaring people they needed astronomy for navigation as well as time-keeping. And the freedom that came from trade allowed them to question and reason.

As a result they became the greatest astronomers of the ancient world - the Greeks not only knew that the earth was round, they also knew its size, and even successfully calculated the distance of the moon from the earth.

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S2012E56 - Gods In The Sky: Part 3