Description ONE OF THE MOST IMPORTANT BOOKS EVER PUBLSHED, it\'s the work of a creative genius whose observation, analysis, ingenuity, and daring laid the foundation for the development of Aviation It includes over 100 fascinating drawings, graphs, and diagrams, as well as engineering analyses, and many historic photographs of Lilienthal flying-in the 1890s, as well as a handy index.
After a comprehensive scientific study of how birds fly, Lilienthal recognized the superiority of.
Description ONE OF THE MOST IMPORTANT BOOKS EVER PUBLSHED, it\'s the work of a creative genius whose observation, analysis, ingenuity, and daring laid the foundation for the development of Aviation It includes over 100 fascinating drawings, graphs, and diagrams, as well as engineering analyses, and many historic photographs of Lilienthal flying-in the 1890s, as well as a handy index
