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 in the 24½th Century by Maurice Noble and the backgrounds produced by Phil DeGuard. Uncredited is the noteworthy quotation of "Powerhouse" by Raymond Scott in the score by Stalling. This cartoon is available on Disc 2 of Volume 1 of the "Looney Tunes Golden Collection" and on Disc 2 of the "" Blu-ray box set, with the cartoon restored in high definition, as well as Disc 1 of "The Essential Daffy Duck". Duck Dodgers in the 24½th Century Duck Dodgers in the 24½ Century (spoken as "twenty-fourth-and-a-half") is a 1952 Merrie Melodies color cartoon from Warner Bros., first released on July 25, 1953, that