Hot air balloon Montgolfier brothers, and had its first public demonstration on 4 June 1783 with an unmanned flight lasting 10 minutes, followed later that year with manned flights. The 1785 Rozière balloon, a type of hybrid balloon, named after its creator, Jean-François Pilâtre de Rozier, has a separate cell for a lighter than air gas (typically helium,) as well as a cone below for hot air (as is used in a hot air balloon) to heat the helium at night. Hydrogen gas was used in the very early stages of development but was quickly abandoned due to the obvious danger of introducing
London International Hot Air Balloon Festival Maple Leaf, and Tyrone the T-Rex. In addition to the balloon launches and rides, the festival featured an amusement park, concerts, and a night glow. Musical acts featured at the 2006 festival included Canadian artists Sloan and Mobile, as well as London band Bobnoxious. In March 2008, Sundance Balloons announced that the 2008 edition of the event would not be held following several consecutive years of financial losses associated with the festival. London International Hot Air Balloon Festival The London Hot-Air Balloon Festival (London Balloon Festival) was an annual hot-air balloon festival held in London, Ontario, Canada. The festival, which