Air Balloon, A large airtight bag filled with hot air or a lighter-than-air gas such as helium or hydrogen to provide buoyancy to allow it to rise and float in the atmosphere. The transport balloon has a basket or container underneath it for passengers or cargo. self-propelled steerable balloon called Airship or airship.
Balloons were used in man’s first successful attempt at flight. As early as 1709, Brazilian priest and inventor Bartolomeu Lourenço de Gusmão began experimenting with balloon-like vehicles. Joseph and Étienne Montgolfier in Annonay, France, 1783 Confirm that a cloth bag filled with hot air will rise. On June 4 of that year, they launched an unmanned balloon that flew more than 1.5 miles (2.4 kilometers). On September 19, 1783, at Versailles, they repeated the experiment with a larger balloon, sending a sheep rooster and a duck aloft.
On November 21, 1783, Jean-François Pilâtre de Rozier and François Laurent marquis d’Arlandes made the first manned flight over Paris in a Montgolfier balloon. They burn wool and straw to keep the air in the balloon warm; they fly 5.5 miles (nearly 9 kilometers) about 23 minutes. In December of that year, physicist Jacques Charles accompanied Nicolas Louis Robert on a two-hour flight in a hydrogen-filled balloon.