EditorialVarious wind turbine blades / rotor blades, Different Types of Windmill Wings, Rotor Blades and Components of a Pinwheel, Woodcut, p. 165, (Liber primus), Manuel, Hans Rudolf (graveur sur bois), 1556, Georgius Agricola: De re metallica libri XII: quibu...
EditorialJuan de la Cierva y Codorn?u, 1st Count of De La Cierva (1895-1936) was a Spanish civil engineer, pilot and aeronautical engineer. His most famous accomplishment was the invention in 1920 of the Autogiro,[1] a single-rotor type of aircraft that came to...
EditorialJuan de la Cierva y Codorn?u, 1st Count of De La Cierva (1895-1936) was a Spanish civil engineer, pilot and aeronautical engineer. His most famous accomplishment was the invention in 1920 of the Autogiro,[1] a single-rotor type of aircraft that came to...