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
Hot Air Balloon (rock opera) as an April Fool's joke. However, "Hot Air Balloon" lyrics were sung during parts of "Aquatic Ape". In addition, the entire second act (and Eulogy) were played on February 2, 1999. An unemployed wayward inventor who bounced aimlessly from idea to idea, until he invented the world's first aircraft, the hot air balloon. He was convinced by Morris Mulberry that the idea could be profitable and that the two of them should start a service shuttling people across the sea in hot air balloons. The business, called Hot Air Balloon Traveling, became successful and attracted the attention of Manilla Trane,