Mankind has always had the desire to fly. Initially we tried to imitate birds to fly, which eventually resulted in the invention of balloons, airships, gliders and powered aircrafts. The first airship in the world that could fly in a controlled way, was invented by Henri Giffard. This airship flew on September 25, 1852 from Paris to Trappes. The ship was 43 meters long and flew 8 km per hour over a distance of 27 km. Other key names for the many changes and developments of the aviation industry,...