The top documents tagged [quartz watchescalibration]

We are 66 Km North of the Tropic of Cancer…. Eratostenes’ method for measuring Solar Diameter ~272-192 b.C.

We are 66 Km North of the Tropic of Cancer…. Eratostenes’ method for measuring Solar Diameter ~272-192 b.C.

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We are 66 Km North of the Tropic of Cancer…

We are 66 Km North of the Tropic of Cancer…

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