Laurent Cassegrain, a Catholic priest and teacher and probably the inventor of the Cassegrain Reflector
In 1997 two French astronomers, Andre Baranne and Francois Launay, after a long and meticulous investigation including a search for unpublished manuscripts and the analysis of parish registers in the places where Cassegrain lived (Chartres first and then Chaudon, near Nogent-le-Roi), identified Laurent Cassegrain as the most likely candidate.
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In that edition is found an extract from a letter written by M. de Bercé, writing from Chartres, where he acted as a representative for the Académie des sciences —scholars of Chartres.
Yves Saint Laurent | Yves Saint Laurent (brand) | Yves Saint Laurent (designer) | Laurent Voulzy | Laurent Ruquier | Saint-Laurent | Pierre-Laurent Aimard | Laurent Fignon | Laurent Genefort | Laurent Gbagbo | Laurent Garnier | Cassegrain reflector | Schmidt-Cassegrain telescope | Saint-Laurent-sur-Sèvre | Laurent Vidal | Laurent Thévenot | Laurent Tailhade | Laurent series | Laurent Petitgirard | Laurent Nkunda | Laurent Gané | Laurent Boyer | Laurent Boetsch | Saint-Laurent-du-Maroni | Saint-Laurent-de-la-Salanque | Mélanie Laurent | Lucien Laurent | Le Golfe-du-Saint-Laurent Regional County Municipality | Laurent Wolf | Laurent Sagart |