Hot air balloon sea level, and humidity of the air surrounding. On a warm day, a balloon cannot lift as much as on a cool day, because the temperature required for launch will exceed the maximum sustainable for nylon envelope fabric. Also, in the lower atmosphere, the lift provided by a hot air balloon decreases about 3% for each 1,000 meters (1% per 1,000 ft) of altitude gained. Standard hot air balloons are known as Montgolfier balloons and rely solely on the buoyancy of hot air provided by the burner and contained by the envelope. This style of balloon was developed by the
Duck Dodgers and the Return of the 24½th Century 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 Pig and Marvin the Martian. It is the sequel to the 1953 cartoon "Duck Dodgers in the 24½th Century". It was the first Daffy and Porky cartoon since 1965. This cartoon first premiered on November 20, 1980, as part of an animated CBS television special called "Daffy Duck's Thanks-for-Giving Special", with scenes that would later be cut when this cartoon was reformatted as a short. The theme tune is an orchestral version of Frédéric