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
Duck Dodgers and the Return of the 24½th Century be a giant, hairy monster in sneakers, and the frightened Dodgers flees. Porky uses electronic clippers to literally haircut Gossamer into nothingness, and Dodgers, furious of his assistant's all-too-literal interpretations of his commands, repeatedly fires his gun at Porky. When Porky asks what Earth will do without the rack-and-pinion molecule Dodgers replies "Let them eat cake." • Mel Blanc as Daffy Duck (as Duck Dodgers), Porky Pig, Marvin the Martian, Gossamer and Dr. I.Q. Duck Dodgers and the Return of the 24½th Century Duck Dodgers and the Return of the 24½ Century is a 1980 cartoon starring Daffy Duck, Porky