René_Antoine_Ferchault_de_Réaumur--Wilhelm_Roentgen

René Antoine Ferchault de Réaumur (French: [ʁeomyʁ]; 28 February 1683, La Rochelle – 17 October 1757, Saint-Julien-du-Terroux) was a French entomologist and writer who contributed to many different fields, especially the study of insects. He introduced the Réaumur temperature scale.