John Harrison

2 articles

Esprit Pézenas: The Jesuit Astronomer and Discoverer of Gegenschein

Esprit Pézenas: The Jesuit Astronomer and Discoverer of Gegenschein Esprit Pézenas was a distinguished French Jesuit polymath whose contributions spanned the realms of astronomy, mathemat...

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Longitude: The Science and History of East-West Positioning

Longitude: The Science and History of East-West Positioning Longitude is a geographic coordinate used to specify the east-west position of a point on the surface of the Earth or another c...

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