Denis Papin
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Denis Papin FRS was a French physicist, mathematician and inventor, best known for his pioneering invention of the steam digester, the forerunner of the pressure cooker and of the steam engine.
Robert Boyle and Denis Papin inspecting Papin's digester
Second Papin steam engine, 1707
Steam-driven water-lifting machine by Papin in 1707, reconstruction, from Nouvelle manière d'élever l'eau par la force du feu. Musée des Arts et Métiers
Loir-et-Cher
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Loir-et-Cher is a department in the Centre-Val de Loire region of France. Its name is originated from two rivers which cross it, the Loir in its northern part and the Cher in its southern part. Its prefecture is Blois. The INSEE and La Poste gave it the number 41. It had a population of 329,470 in 2019.
Prefecture building of the Loir-et-Cher department, in Blois
Blois
Vendôme
Château de Chambord