Tag: history of astronomy
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Nicolaus Copernicus biography: The Man Who Moved the Earth
On a cold Baltic night in the early 1500s, a church canon climbed wooden stairs to a small tower overlooking the Vistula Lagoon, carrying nothing more dramatic than a notebook, a quadrant, and an irritatingly persistent question. The stars above Warmia did what they had always done: they rose, slid westward, and set. But Nicolaus…