Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Albert Betz (25 December 1885 Schweinfurt - 16 April 1968 Göttingen) was a German physicist and a pioneer of wind turbine technology. In 1910 he graduated as a naval engineer from Technische Hochschule Berlin (Diplomingenieur Schiffbau). In 1911 Betz became a researcher at the University of Göttingen aerodynamics laboratory, where he was awarded his PhD in 1919 for his work on 'ship propellers with minimum loss of energy'. In his 1920 paper "Das Maximum der theoretisch möglichen Ausnutzung des Windes durch Windmotoren" ("Theoretical Limit for Best Utilization of Wind by Wind Motors") was published. His work was based on earlier studies by Frederick Lanchester that included the first full description of lift and drag.