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 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 stars Daffy Duck as space hero Duck Dodgers, Porky Pig as his assistant, and Marvin the Martian as his opponent. This cartoon marked the first of many appearances of the Duck Dodgers character. Marvin the Martian had been introduced as an unnamed villain in Warner's cartoon "Haredevil Hare" (1948), playing opposite Bugs Bunny. He was later given the title 'Commander, Flying Saucer X-2' in 1951's "The Hasty Hare".