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
Penang Hot Air Balloon Fiesta Hot Air Balloon Fiesta, the first hot air balloon festival in the State of Penang, was mooted to boost tourist arrivals into the city-state. The inaugural event, held at the Polo Ground on 21 and 22 February 2015, was timed to coincide with the Chinese New Year festivities. Since then, the event has grown considerably. Several on-site family-friendly activities have been added into the two-day event, including workshops, photography contests and kite flying. Smaller-scale preludes to the yearly event have been organised as well, such as a mini balloon fiesta at the Esplanade and a balloon display in Butterworth on