Beskriver gennerelle principper for at flyve og fortæller om de første forsøg på at bygge en egentlig flyvemaskine før det lykkedes at gennemføre en beman
A photo essay tracing the history and development of aircraft from hot-air balloons to jetliners. Includes information on the principles of flight and the inner
A National Science Teachers Association Best STEM Books of 2017 Take to the skies with Flying Machines! Follow the famous aviators from their bicycle shop in Da
This book clearly demonstrates the problems encountered by the personalities involved and their strengths in developing the helicopter for Coast Guard use. It s