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
Hot air ballooning the Bull often rides in a hot air balloon. On "Sir Arthur Conan Doyle's The Lost World", disaster strikes and their hot air balloon crashes in the uncharted Amazon jungle. In the 1984 miniseries "V: The Final Battle", humans defeat the alien visitors by dropping red dust from hot air balloons. In "The Simpsons", episode 328, "Co-Dependent's Day" from season 15, originally aired on Sunday, March 21, 2004, at the end, when Marge asks Homer who is watching the kids, the scene cuts to Bart and Lisa in the basket of a hot air balloon. In "The Simpsons", episode 336,