Hot air balloon was invented by the Montgolfier brothers on December 14, 1782. A hot air balloon consists of a bag which is called the envelope. The envelope is capable of containing heated air.
Hot air balloon was invented by the Montgolfier brothers on December 14, 1782. A hot air balloon consists of a bag which is called the envelope. The envelope is capable of containing heated air.
Hot air balloon was invented by the Montgolfier brothers on December 14, 1782. A hot air balloon consists of a bag which is called the envelope. The envelope is capable of containing heated air.
eAnswers Team
Hot air balloon was invented by the Montgolfier brothers on December 14, 1782. A hot air balloon consists of a bag which is called the envelope. The envelope is capable of containing heated air.
For more: http://en.wikipedia.org/wiki/Hot_air_balloon
eAnswers Team
Hot air balloon was invented by the Montgolfier brothers on December 14, 1782. A hot air balloon consists of a bag which is called the envelope. The envelope is capable of containing heated air.
For more: http://en.wikipedia.org/wiki/Hot_air_balloon
eAnswers Team
Hot air balloon was invented by the Montgolfier brothers on December 14, 1782. A hot air balloon consists of a bag which is called the envelope. The envelope is capable of containing heated air.
For more: http://en.wikipedia.org/wiki/Hot_air_balloon