Ed Yost own interests turned toward reviving the lost practice of manned hot-air ballooning. This technology had first been invented in France by in the late 18th century by pioneers led by the Montgolfier brothers, but under the Montgolfier system, the balloon's air was heated by a ground fire prior to the balloon being released. The inherent danger of this type of balloon flight led to the system being abandoned when hydrogen and later helium became available. One of Yost's key engineering insights was that a hot-air balloon could be made to carry its own fuel. The invention of relatively light burners
Stowaway in the Sky Stowaway in the Sky Stowaway in the Sky (French: Le Voyage en ballon) is a 1960 French family adventure film, in Dyaliscope and Eastman Color, directed by Albert Lamorisse. Albert Lamorisse used his ten-year-old son Pascal as the main character in the film. The film tells the story of Pascal, a small child who's fascinated by his grandfather's lighter-than-air balloon. The older man claims he's invented the best mode of transportation: a balloon that can be controlled when in the sky. The altitude, direction, and speed of the balloon are all under the direction of the pilot. As the "grand-père"